DE102010003621A1 - Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element - Google Patents
Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element Download PDFInfo
- Publication number
- DE102010003621A1 DE102010003621A1 DE201010003621 DE102010003621A DE102010003621A1 DE 102010003621 A1 DE102010003621 A1 DE 102010003621A1 DE 201010003621 DE201010003621 DE 201010003621 DE 102010003621 A DE102010003621 A DE 102010003621A DE 102010003621 A1 DE102010003621 A1 DE 102010003621A1
- Authority
- DE
- Germany
- Prior art keywords
- housing element
- sound
- absorbing material
- air conditioning
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00514—Details of air conditioning housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/006—Noise reduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Abstract
Description
Die Erfindung betrifft ein Gehäuseelement für eine Heizungs-, Lüftungs- und/oder Klima-Anlage, insbesondere für ein Fahrzeug.The invention relates to a housing element for a heating, ventilation and / or air conditioning system, in particular for a vehicle.
In derartigen Anlagen tritt mitunter das Problem auf, dass niederfrequente Schwingungen, insbesondere im Bereich 200–300 Hz, auftreten, die über die Anlage abgestrahlt werden. Zur Lösung dieses Problems ist es einerseits bekannt, einzelne Gehäuseteile der Anlage mit einer Verrippung zu versehen. Die Verrippung versteift die Gehäusewand und verschiebt dadurch die Schwingfrequenz nach oben. Um jedoch genügend wirksam zu sein, müssen die Rippen 10 mm und mehr hoch sein, was dem oftmals zur Verfügung stehenden sehr begrenzten Bauraum entgegenläuft.In such systems, the problem sometimes occurs that low-frequency vibrations, in particular in the range 200-300 Hz, occur, which are radiated through the system. To solve this problem, it is known on the one hand to provide individual housing parts of the system with a ribbing. The ribbing stiffens the housing wall and thereby shifts the oscillation frequency upwards. However, to be sufficiently effective, the ribs must be 10 mm and more high, which runs counter to the often available very limited space.
Ferner gibt es die Möglichkeit, Teile der Anlage mit einer Schwerfolie zu versehen; jedoch beeinflusst diese das Gewicht der Anlage. Ferner ist eine Aufbringung der Folie sehr kostenintensiv.Furthermore, there is the possibility to provide parts of the system with a heavy foil; However, this affects the weight of the system. Furthermore, an application of the film is very expensive.
Ferner besteht die Möglichkeit, wie beispielsweise gemäß der
Es ist Aufgabe der Erfindung, ein Gehäuseelement der eingangs genannten Art anzugeben, das es bei möglichst geringem Bauaufwand gestattet, das akustische Verhalten einer Klimaanlage, für die das Gehäuseelement vorgesehen ist, zu verbessern.It is an object of the invention to provide a housing element of the type mentioned, which allows it with the least possible construction, to improve the acoustic behavior of an air conditioner, for which the housing element is provided.
Diese Aufgabe ist für ein Gehäuseelement für eine Klimaanlage der eingangs genannten Art dadurch gelöst, dass in einer Teilfläche des Gehäuseelementes ein schallabsorbierendes Material vorgesehen ist, welches an Ränder einer in dem Material des übrigen Gehäuseelementes vorgesehenen Aussparung angespritzt ist und diese schließt.This object is achieved for a housing element for an air conditioner of the type mentioned above in that a sound-absorbing material is provided in a partial surface of the housing element, which is molded onto edges of a recess provided in the material of the remaining housing element and this closes.
In derartigen erfindungsgemäßen Gehäuseelementen, die schalldämmende Aufgaben übernehmen sollen, ist in dem Gehäuseelement wenigstens eine Aussparung vorgesehen, in welcher wiederum ein schallabsorbierendes Material vorgesehen ist. Das schallabsorbierende Material wird im Regelfall ein anderes Material sein als dasjenige des Gehäuseelementes. Dennoch wird dieses auf einfache Weise an dem Gehäuseelement befestigt, nämlich indem es im Bereich der Aussparung außen an die Ränder des Materials des übrigen Gehäuselementes angespritzt wird.In such housing elements according to the invention, which are to undertake sound-insulating tasks, at least one recess is provided in the housing element, in which, in turn, a sound-absorbing material is provided. The sound-absorbing material will usually be a different material than that of the housing element. Nevertheless, this is attached in a simple manner to the housing element, namely by being molded in the region of the recess on the outside of the edges of the material of the remaining housing element.
Dabei können die Bereiche, in denen ein schallabsorbierendes Material vorgesehen ist, relativ klein gehalten werden. Der Erfindung liegt die Erkenntnis zugrunde, dass es genügt, Bereiche einer maximalen Schwingung in einem bestimmten Frequenzbereich zu finden und in diesen Bereichen schallabsorbierendes Material vorzusehen. Dieses wirkt wie ein akustischer Absorber. Auf diese Weise können gezielt bestimmte Frequenzbereiche aus dem Gesamtgeräuschpegel wirksam bedämpft werden. Die erfindungsgemäße Lösung benötigt keinen zusätzlichen Bauraum, wie beispielsweise beim Aufbau mit Rippen. Die Schwingungsenergie wird bei der Dämpfung in dem schallabsorbierenden Material in Wärmeenergie umgewandelt.In this case, the areas in which a sound-absorbing material is provided, can be kept relatively small. The invention is based on the finding that it is sufficient to find areas of maximum vibration in a certain frequency range and to provide sound-absorbing material in these areas. This acts like an acoustic absorber. In this way, targeted specific frequency ranges can be effectively attenuated from the overall noise level. The solution according to the invention requires no additional space, such as in the construction with ribs. The vibration energy is converted into heat energy during the damping in the sound-absorbing material.
Gemäß einer Ausgestaltung der Erfindung ist vorgesehen, dass das Gehäuseelement mit Ausnahme des schallabsorbierenden Materials aus einem Kunststoff gespritzt ist und dass das schallabsorbierende Material mit dem gleichen Kunststoff an den Kunststoff des übrigen Gehäuseelementes angespritzt ist.According to one embodiment of the invention, it is provided that the housing element is sprayed with the exception of the sound-absorbing material of a plastic and that the sound-absorbing material is molded with the same plastic to the plastic of the rest of the housing element.
Somit besteht das Gehäuseelement mit Ausnahme des schallabsorbierenden Materials sowie die Befestigung des schallabsorbierenden Materials an dem übrigen Gehäuseelement aus Kunststoff, vorteilhafterweise aus dem gleichen Kunststoff, was den Fertigungsaufwand verringert.Thus, the housing element, with the exception of the sound-absorbing material and the attachment of the sound-absorbing material to the rest of the housing element made of plastic, advantageously from the same plastic, which reduces the manufacturing cost.
Zur optimalen Wirkung des schallabsorbierenden Materials in dem erfindungsgemäßen Gehäuseelement ist gemäß einer weiteren Ausgestaltung der Erfindung vorgesehen, dass die Teilfläche mit dem schallabsorbierenden Material in einem Bereich des Gehäuseelementes vorgesehen ist, in welchem bei einer zu unterdrückenden Schwingfrequenz relativ große Amplituden auftreten.For optimal effect of the sound-absorbing material in the housing element according to the invention is provided according to a further embodiment of the invention, that the partial surface is provided with the sound-absorbing material in a region of the housing member in which relatively large amplitudes occur at a frequency to be suppressed vibration.
Der Erfindung liegt die Erkenntnis zugrunde, dass für bestimmte Schwingfrequenzen relativ eng begrenzte Bereiche von Gehäuseelementen einer Klimaanlage relativ starke Schwingungen aufweisen. Mittels des erfindungsgemäßen Gehäuseelementes werden speziell in diesen Bereichen auftretende relativ große Schwingangamplituden mittels des schallabsorbierenden Materials reduziert, was insgesamt eine Verbesserung des akustischen Verhaltens zur Folge hat, auch außerhalb der Bereiche des Gehäuses der Klimaanlage, die aus dem schallabsorbierenden Material bestehen.The invention is based on the finding that relatively narrow regions of housing elements of an air conditioning system have relatively strong vibrations for certain vibration frequencies. By means of the housing element according to the invention, relatively large Schwingungamplituden occurring in these areas are reduced by means of the sound-absorbing material, resulting in an overall improvement in the acoustic behavior, even outside the areas of the housing of the air conditioner, which consist of the sound-absorbing material.
Wie gemäß weiteren Ausgestaltungen der Erfindung vorgesehen ist, können die schallabsorbierenden Bereiche des Gehäuseelementes vorzugsweise aus Gummi oder Polypropylen bestehen. Diese Materialien erreichen eine sehr gute akustische Dämpfung, indem sie die Schwingungsenergie in Warme umwandeln.As is provided according to further embodiments of the invention, the sound-absorbing regions of the housing element may preferably be made of rubber or polypropylene. These materials achieve very good acoustic damping by converting the vibration energy into heat.
Die schallabsorbierenden Bereiche können vorzugsweise, wie gemäß einer weiteren Ausgestaltung der Erfindung vorgesehen ist, dicker ausgebildet sein als das übrige Gehäuseelement. Damit wird im frequenzbereich der zu dämpfende Frequenz eine optimale akustische Dämpfung durch das schallabsorbierende Material erzielt.The sound-absorbing regions may preferably, as is provided according to a further embodiment of the invention, be made thicker than the rest of the housing element. Thus, in the frequency range of the frequency to be damped optimum acoustic damping is achieved by the sound-absorbing material.
Zur möglichst einfachen Herstellung des erfindungsgemäßen Gehäuseelementes ist gemäß einer weiteren Ausgestaltung der Erfindung ein Verfahren zur Herstellung desselben vorgesehen, dass das Gehäuseelement in einem Zwei-Komponenten-Verfahren hergestellt wird, in welchem zunächst das Gehäuseelement mit wenigstens einer Aussparung gespritzt und nachfolgend in einer zweiten Phase das schallabsorbierende Material im Bereich der Ränder des Durchbruchs an das Gehäuseelement angespritzt wird. Somit wird einerseits die Fertigung vereinfacht, da die Befestigung des schallabsorbierenden Materials aus dem gleichen Material bestehen kann wie das übrige Gehäuseelement. Zum anderen wird der Einsatz zusätzlicher Materialien oder zusätzlicher Arbeitsvorgänge, wie beispielsweise Schweißen, unnötig.For the simplest possible production of the housing element according to the invention, a method for producing the same is provided according to a further embodiment of the invention, that the housing element is produced in a two-component process, in which first the housing member injected with at least one recess and subsequently in a second phase the sound-absorbing material in the region of the edges of the opening is molded onto the housing element. Thus, on the one hand, the production is simplified because the attachment of the sound-absorbing material may consist of the same material as the rest of the housing element. On the other hand, the use of additional materials or additional operations, such as welding, unnecessary.
Nachfolgend werden einige Ausführungsbeispiele der Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:Hereinafter, some embodiments of the invention will be explained in more detail with reference to the drawings. Show it:
Das in
In
Im Endeffekt wird mittels des erfindungsgemäßen Gehäuseelementes gemäß
Das schallabsorbierende Material
Der gleiche Kunststoff kann zum Anspritzen und somit Befestigen des schallabsorbierenden Materials
Die Darstellungen gemäß der Figuren zeigen, dass neben der einfachen Fertigung ein weiterer wesentlicher Vorteil des erfindungsgemäßen Gehäuseelementes darin besteht, dass mittels Ausstattung des Gehäuseelementes mit einem schallabsorbierenden Material in relativ kleinen Bereichen des Gehäuseelementes bereits eine sehr gute akustische Wirkung erzielt wird.The illustrations according to the figures show that in addition to the simple production another significant advantage of the housing element according to the invention is that by means of equipment of the housing element with a sound-absorbing material in relatively small areas of the housing element is already achieved a very good acoustic effect.
Die Stärke des schallabsorbierenden Materials
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1431084 B1 [0004] EP 1431084 B1 [0004]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010003621 DE102010003621A1 (en) | 2010-04-01 | 2010-04-01 | Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010003621 DE102010003621A1 (en) | 2010-04-01 | 2010-04-01 | Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element |
Publications (1)
Publication Number | Publication Date |
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DE102010003621A1 true DE102010003621A1 (en) | 2011-10-06 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE201010003621 Pending DE102010003621A1 (en) | 2010-04-01 | 2010-04-01 | Housing structure for heating ventilation and air conditioning system for car, has sound-absorbing material that is arranged at the edges of cabinet element |
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DE (1) | DE102010003621A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2019082300A1 (en) * | 2017-10-25 | 2020-10-22 | 三菱電機株式会社 | Refrigeration cycle equipment unit, refrigeration cycle equipment and electrical equipment |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950039C1 (en) * | 1999-10-16 | 2001-04-26 | Bayerische Motoren Werke Ag | Manufacturing process for a plastic injection molded component consisting of at least two components |
DE10029097A1 (en) * | 2000-06-14 | 2001-12-20 | Behr Gmbh & Co | Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame |
EP1431084A2 (en) * | 2002-12-20 | 2004-06-23 | Behr GmbH & Co. KG | Housing, in particular for a motor vehicle air conditioning system |
DE102005027566A1 (en) * | 2004-06-18 | 2006-01-19 | Behr Gmbh & Co. Kg | Building element, in particular, for a heating and/or air-conditioning unit of a motor vehicle comprises a zone of its wall area which is open to sound and is made of a micro-porous material |
-
2010
- 2010-04-01 DE DE201010003621 patent/DE102010003621A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950039C1 (en) * | 1999-10-16 | 2001-04-26 | Bayerische Motoren Werke Ag | Manufacturing process for a plastic injection molded component consisting of at least two components |
DE10029097A1 (en) * | 2000-06-14 | 2001-12-20 | Behr Gmbh & Co | Air flap for car ventilation system has molded sealing pattern with molded teeth or wave patterns round edge of back that seal against matching patterns in frame |
EP1431084A2 (en) * | 2002-12-20 | 2004-06-23 | Behr GmbH & Co. KG | Housing, in particular for a motor vehicle air conditioning system |
EP1431084B1 (en) | 2002-12-20 | 2007-05-02 | Behr GmbH & Co. KG | Housing, in particular for a motor vehicle air conditioning system |
DE102005027566A1 (en) * | 2004-06-18 | 2006-01-19 | Behr Gmbh & Co. Kg | Building element, in particular, for a heating and/or air-conditioning unit of a motor vehicle comprises a zone of its wall area which is open to sound and is made of a micro-porous material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2019082300A1 (en) * | 2017-10-25 | 2020-10-22 | 三菱電機株式会社 | Refrigeration cycle equipment unit, refrigeration cycle equipment and electrical equipment |
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