DE19722866A1 - Ventilation channel for air-conditioning unit of motor vehicle - Google Patents
Ventilation channel for air-conditioning unit of motor vehicleInfo
- Publication number
- DE19722866A1 DE19722866A1 DE19722866A DE19722866A DE19722866A1 DE 19722866 A1 DE19722866 A1 DE 19722866A1 DE 19722866 A DE19722866 A DE 19722866A DE 19722866 A DE19722866 A DE 19722866A DE 19722866 A1 DE19722866 A1 DE 19722866A1
- Authority
- DE
- Germany
- Prior art keywords
- air duct
- air
- housing
- outlet opening
- blower
- 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.)
- Granted
Links
Classifications
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/0263—Insulation for air ducts
-
- 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
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
-
- 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
- F24F13/02—Ducting arrangements
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft einen Luftführungskanal einer Heizungs- oder Klimaanlage eines Kraftfahrzeuges gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an air duct of a heating or Air conditioning system of a motor vehicle according to the preamble of the claim 1.
Klimaanlagen, wie sie beispielsweise aus der US 4,402,405 bekannt sind, weisen ein Gebläse und wenigstens einen Wärmetauscher, wie einen Verdampfer, und/oder eine Heizung sowie Luftstromsteuerelemente, wie Luftklappen, auf. Das Gebläse ist in der Regel möglichst nahe an den weiteren Komponenten der Heizungs- oder Klimaanlage angeordnet, so daß die von dem Gebläse geförderte Luft nur über einen kurzen Luftführungskanal oder direkt den Komponenten der Anlage zuführbar ist. Dabei ist der Luftführungskanal zwischen Gebläse und den weiteren Komponenten möglichst kurz und geradlinig, um einen Druckabfall zu vermeiden.Air conditioning systems, as are known for example from US 4,402,405 have a blower and at least one heat exchanger, such as one Evaporator, and / or a heater and airflow controls, such as Air flaps, on. The fan is usually as close as possible to the other components of the heating or air conditioning system arranged so that the air delivered by the blower is only a short one Air duct or the components of the system can be fed directly. The air duct is between the blower and the others Components as short and straight as possible to reduce pressure avoid.
Es ist das Bestreben, heutige Klimaanlagen derart auszubilden, daß eine möglichst geringe Geräuschentwicklung auftritt.The aim is to design today's air conditioning systems in such a way that one as little noise as possible occurs.
Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung einen verbesserten Luftführungskanal für eine Heizungs- oder Klimaanlage eines Kraftfahrzeuges bereitzustellen, der insbesondere den durch das Gebläse der Anlage erzeugte Geräusch besser dämmt, so daß die Anlage insgesamt eine geringere Geräuschentwicklung aufweist.Starting from this prior art, it is the object of the invention an improved air duct for a heating or air conditioning system to provide a motor vehicle, which in particular by the Blower of the system better insulates noise, so that the system overall has a lower noise level.
Diese Aufgabe wird erfindungsgemäß gelöst durch einen Luftführungskanal mit den Merkmalen des Anspruchs 1.This object is achieved by an air duct with the features of claim 1.
Erfindungsgemäß weist der Luftführungskanal, in Abkehr von den bisherigen Bestrebungen, einen Luftkanal möglichst geradlinig und kurz auszubilden, wenigstens eine Krümmung auf, die derart ausgebildet ist, daß maximal nur zwischen einem kleinen Teilbereich der Eingangsöffnung des Luftführungskanals und einem kleinen Teilbereich der Ausgangsöffnung eine lineare Verbindung möglich ist. Dadurch ist gewährleistet, daß der Großteil des in dem Gebläse erzeugten Schalls beim Durchtritt durch den Luftführungskanal wenigstens einmal an einer Wandung des Kanals reflektiert wird und nur ein kleiner Teil des Schalls geradlinig und ohne Reflexionen durch den erfindungsgemäßen Luftführungskanal gelangt. Dadurch tritt eine Schallabsorption auf, die überraschend groß ist, so daß die durch die Krümmung notwendigerweise verursachten Druckverluste in Kauf genommen werden können. Die Heizungs- oder Klimaanlage mit dem erfindungsgemäßen Luftführungskanal weist insgesamt eine geringere Geräuschentwicklung auf.According to the invention, the air duct has a departure from the previous ones Efforts to make an air duct as straight and short as possible, at least one curvature, which is designed such that at most only between a small section of the entrance opening of the Air duct and a small section of the exit opening a linear connection is possible. This ensures that the Most of the sound generated in the fan when it passes through the Air duct at least once on a wall of the channel is reflected and only a small part of the sound is straight and without Reflections passes through the air duct according to the invention. This results in a sound absorption that is surprisingly large, so that the pressure losses caused by the curvature in Purchase can be made. The heating or air conditioning with the Air duct according to the invention has a lower overall Noise development.
In einer bevorzugten Ausführungsform der Erfindung sind zwei Krümmungen in unterschiedlichen Richtungen vorgesehen, die bevorzugt einen Winkel von etwa 90° einschließen. Damit kann ein günstiges Verhältnis zwischen den hinzunehmenden Druckverlusten und der erreichten Geräuschreduzierung erzielt werden.In a preferred embodiment of the invention there are two curvatures provided in different directions, preferably an angle of about 90 °. This can create a favorable relationship between the added pressure losses and the achieved Noise reduction can be achieved.
Die aerodynamische Gestaltung des Luftführungskanals läßt sich durch Einbringen eines oder mehrerer Luftleitelemente weiter verbessern, wodurch die Druckverluste aufgrund der Krümmungen reduziert sind.The aerodynamic design of the air duct can be Introduce one or more air guiding elements further improve, whereby the pressure losses due to the curvatures are reduced.
Zur Verbesserung der Akustik kann die Kanalwandung - zumindest innenseitig - mit schalldämpfendem Material ausgekleidet sein. The duct wall can - at least - improve the acoustics inside - be lined with sound absorbing material.
Je nachdem ob die Heizungs- oder Klimaanlage separates Einbauteil oder integraler Bestandteil 1 des Armaturenbretts ist, kann der Luftführungskanal ebenfalls ein separates Bauteil sein oder durch das Armaturenbrett selbst gebildet sein.Depending on whether the heating or air conditioning system is a separate built-in part or an integral part 1 of the dashboard, the air duct can also be a separate component or be formed by the dashboard itself.
Im folgenden wir die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung im einzelnen erläutert.In the following we under the invention using an exemplary embodiment Reference to the drawing explained in detail.
In der Zeichnung zeigen:The drawing shows:
Fig. 1 eine Ansicht einer Klimaanlage mit dem erfindungsgemäßen Luftführungskanal; Figure 1 is a view of an air conditioning system with the air duct according to the invention.
Fig. 2 eine Ansicht des Luftführungskanals. Fig. 2 is a view of the air duct.
Eine in der Zeichnung dargestellte Heizungs- oder Klimaanlage 10 (Fig. 1) weist ein in einem Gebläsegehäuse 12 angeordnetes Gebläse und weitere, nicht im einzelnen dargestellte Komponenten, wie Verdampfer, Wärmetauscher und/oder Heizkörper sowie entsprechende Luftklappen und Luftkanäle, die in einem Gehäuse 14 angeordnet sind, auf. Das Gebläse mit seinem Gebläsegehäuse 12 ist über einen Luftführungskanal 16 mit dem Gehäuseteil 14 verbunden. Dabei weist der Luftführungskanal 16 eine Eingangsöffnung 18 auf, die dem Gebläse zugeordnet ist und eine Ausgangsöffnung 20, die dem Gehäuse 14 zugeordnet ist.A heating or air conditioning system 10 shown in the drawing ( FIG. 1) has a blower arranged in a blower housing 12 and further components, not shown in detail, such as evaporators, heat exchangers and / or radiators as well as corresponding air flaps and air ducts which are in a housing 14 are arranged on. The blower with its blower housing 12 is connected to the housing part 14 via an air duct 16 . The air duct 16 has an inlet opening 18 which is assigned to the blower and an outlet opening 20 which is assigned to the housing 14 .
Der in Fig. 2 näher dargestellte Luftführungskanal 16 weist wenigstens eine, bevorzugt zwei, Krümmungen 22 und 24 auf, die bevorzugt in unterschiedliche Richtungen verlaufen, wobei die Richtungen bevorzugt einen Winkel von etwa 90° einschließen. Die Krümmungen 22 und 24 sind derart ausgebildet, daß maximal nur zwischen einem kleinen Teilbereich 26 der Eingangsöffnung 18 und einem kleinen Teilbereich 28 der Ausgangsöffnung 20 eine lineare Verbindung möglich ist, wie dies in Fig. 2 durch die gestrichelten Linien angedeutet ist. Es ist auch denkbar, die Krümmungen derart auszubilden, daß eine geradlinige Verbindung von der Eingangs- 18 zur Ausgangsöffnung 20 nicht möglich ist. Der Schall wird dann in jedem Fall mindestens einmal reflektiert. Allerdings sind dann auch die Druckverluste größer.The air duct 16 shown in more detail in FIG. 2 has at least one, preferably two, bends 22 and 24 , which preferably run in different directions, the directions preferably enclosing an angle of approximately 90 °. The curvatures 22 and 24 are designed such that a linear connection is possible at most only between a small partial region 26 of the inlet opening 18 and a small partial region 28 of the outlet opening 20 , as is indicated in FIG. 2 by the dashed lines. It is also conceivable to design the curvatures in such a way that a straight connection from the inlet opening 18 to the outlet opening 20 is not possible. The sound is then reflected at least once. However, the pressure losses are also greater.
Die Druckverluste lassen sich durch ein oder mehrere Luftleitelemente 30 (Fig. 1), die die Luft durch die Krümmungen des Luftführungskanals 16 leiten, teilweise reduzieren. In einem Versuch konnten durch die Luftleitelemente 30 bis zu 30% geringere Druckverluste erzielt werden.The pressure losses can be partially reduced by one or more air guide elements 30 ( FIG. 1), which guide the air through the curvatures of the air duct 16 . In one test, 30 to 30% lower pressure losses could be achieved with the air guide elements.
Bevorzugt ist eine Kanalwandung - zumindest innenseitig - mit schalldämpfendem Material in nicht dargestellter Weise ausgekleidet. Der Luftführungskanal 16 kann, wie in der Zeichnung dargestellt, ein separates Bauteil bilden, das beispielsweise über Clipsverbindungen an das Gebläsegehäuse 12 und/oder Gehäuse 14 ankoppelbar ist. Wenn das Gebläsegehäuse 12 und das Gehäuse 14 der Heizungs- und Klimaanlage Teil des Armaturenbretts bilden, bildet bevorzugt auch der Luftführungskanal 16 Teil des Armaturenbretts.A channel wall is preferably - at least on the inside - lined with sound-absorbing material in a manner not shown. The air duct 16 can, as shown in the drawing, form a separate component which can be coupled to the blower housing 12 and / or housing 14 , for example, via clip connections. If the blower housing 12 and the housing 14 of the heating and air conditioning system form part of the dashboard, the air duct 16 preferably also forms part of the dashboard.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722866A DE19722866B4 (en) | 1997-05-06 | 1997-05-31 | Air duct of a heating or air conditioning of a motor vehicle |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19718265 | 1997-05-06 | ||
DE19718265.8 | 1997-05-06 | ||
DE19722866A DE19722866B4 (en) | 1997-05-06 | 1997-05-31 | Air duct of a heating or air conditioning of a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19722866A1 true DE19722866A1 (en) | 1998-11-12 |
DE19722866B4 DE19722866B4 (en) | 2008-04-30 |
Family
ID=7828222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722866A Expired - Fee Related DE19722866B4 (en) | 1997-05-06 | 1997-05-31 | Air duct of a heating or air conditioning of a motor vehicle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19722866B4 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006098694A1 (en) * | 2005-03-18 | 2006-09-21 | Tumane Enterprises Limited | A sound dampening flow channel device |
FR2884174A1 (en) * | 2005-04-11 | 2006-10-13 | Renault Sas | Motor vehicle ventilation device, has two ventilation conduits connected with each other by connection conduit that extends in direction perpendicular to direction of air flow in conduits |
DE102006050339A1 (en) * | 2006-10-25 | 2008-04-30 | Valeo Klimasysteme Gmbh | Ventilation system with sound barrier |
FR2911660A1 (en) * | 2007-01-24 | 2008-07-25 | Renault Sas | Bent ventilation conduit for air conditioning system of motor vehicle, has noise attenuating unit with reflecting zone located in bending section, opposite to upstream section, and partially reflecting incident waves towards opening |
EP1997656A1 (en) | 2007-05-31 | 2008-12-03 | Behr GmbH & Co. KG | Fluid conduit |
DE102007062827A1 (en) | 2007-12-21 | 2009-06-25 | Behr Gmbh & Co. Kg | Sound-absorbing fluid channel with a flow guide |
US8146706B2 (en) | 2006-08-07 | 2012-04-03 | Denso Corporation | Air duct for vehicle air conditioning and air conditioner for vehicle |
DE102011082374A1 (en) * | 2011-09-08 | 2013-03-14 | Behr Gmbh & Co. Kg | Air-conditioning apparatus for supplying e.g. cool air to inner space of motor car, has diffuser channel provided with large expansion at diffuser inlet in direction parallel to fictitious plane stretched from element |
EP3572254A1 (en) * | 2018-05-25 | 2019-11-27 | Valeo Klimasysteme GmbH | A heating ventilation and air conditioning system with sound absorption means |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009051809A1 (en) | 2009-11-03 | 2011-05-12 | Behr Gmbh & Co. Kg | Air outflow device for air guiding device, has air outflow opening that is formed in polygonal shape, where edge of air outflow opening has extension that varies in air outflow direction |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE703663C (en) * | 1937-06-02 | 1941-03-13 | Patentverwertung | Guide surface installation in curved or angled gas ducts, especially in the supply line to electrostatic precipitators |
FR2350556A1 (en) * | 1976-05-04 | 1977-12-02 | Segic | Sound attenuating ventilation unit for habitable rooms - has labyrinth air passage between attenuating sides of varying thickness |
DE3536379A1 (en) * | 1985-10-11 | 1987-04-16 | Metzeler Schaum Gmbh | Air duct, in particular in motor vehicles |
EP0338908A1 (en) * | 1988-04-22 | 1989-10-25 | Regie Nationale Des Usines Renault | Ventilating tube particularly for air conditioning installation of cars |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE187772C1 (en) * | 1953-01-15 | 1964-02-18 | Nordisk Ventilator Co Aktieselskab | |
LU50332A1 (en) * | 1965-02-03 | 1966-03-28 | ||
DE2930162A1 (en) * | 1979-07-25 | 1981-02-12 | Gottlieb Link | Noise dampening ventilation duct of standard length sections - has internal lining of heat resistant and sound absorbent material |
JP3483986B2 (en) * | 1995-06-15 | 2004-01-06 | 日本プラスト株式会社 | Automotive air-conditioning duct structure |
-
1997
- 1997-05-31 DE DE19722866A patent/DE19722866B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE703663C (en) * | 1937-06-02 | 1941-03-13 | Patentverwertung | Guide surface installation in curved or angled gas ducts, especially in the supply line to electrostatic precipitators |
FR2350556A1 (en) * | 1976-05-04 | 1977-12-02 | Segic | Sound attenuating ventilation unit for habitable rooms - has labyrinth air passage between attenuating sides of varying thickness |
DE3536379A1 (en) * | 1985-10-11 | 1987-04-16 | Metzeler Schaum Gmbh | Air duct, in particular in motor vehicles |
EP0338908A1 (en) * | 1988-04-22 | 1989-10-25 | Regie Nationale Des Usines Renault | Ventilating tube particularly for air conditioning installation of cars |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8061476B2 (en) | 2005-03-18 | 2011-11-22 | Tumane Enterprises Limited | Sound dampening flow channel device |
WO2006098694A1 (en) * | 2005-03-18 | 2006-09-21 | Tumane Enterprises Limited | A sound dampening flow channel device |
FR2884174A1 (en) * | 2005-04-11 | 2006-10-13 | Renault Sas | Motor vehicle ventilation device, has two ventilation conduits connected with each other by connection conduit that extends in direction perpendicular to direction of air flow in conduits |
EP1712382A1 (en) * | 2005-04-11 | 2006-10-18 | Renault s.a.s. | Ventilation device for a vehicle including noise reduction means |
DE102007037192B4 (en) * | 2006-08-07 | 2015-08-20 | Denso Corporation | Air duct for a vehicle air conditioning system |
US8146706B2 (en) | 2006-08-07 | 2012-04-03 | Denso Corporation | Air duct for vehicle air conditioning and air conditioner for vehicle |
DE102006050339A1 (en) * | 2006-10-25 | 2008-04-30 | Valeo Klimasysteme Gmbh | Ventilation system with sound barrier |
FR2911660A1 (en) * | 2007-01-24 | 2008-07-25 | Renault Sas | Bent ventilation conduit for air conditioning system of motor vehicle, has noise attenuating unit with reflecting zone located in bending section, opposite to upstream section, and partially reflecting incident waves towards opening |
WO2008110707A2 (en) * | 2007-01-24 | 2008-09-18 | Renault S.A.S | Ventilation duct including noise reduction means |
WO2008110707A3 (en) * | 2007-01-24 | 2008-11-06 | Renault Sa | Ventilation duct including noise reduction means |
DE102007025572A1 (en) | 2007-05-31 | 2008-12-11 | Behr Gmbh & Co. Kg | fluid channel |
EP1997656A1 (en) | 2007-05-31 | 2008-12-03 | Behr GmbH & Co. KG | Fluid conduit |
DE102007062827A1 (en) | 2007-12-21 | 2009-06-25 | Behr Gmbh & Co. Kg | Sound-absorbing fluid channel with a flow guide |
DE102011082374A1 (en) * | 2011-09-08 | 2013-03-14 | Behr Gmbh & Co. Kg | Air-conditioning apparatus for supplying e.g. cool air to inner space of motor car, has diffuser channel provided with large expansion at diffuser inlet in direction parallel to fictitious plane stretched from element |
EP3572254A1 (en) * | 2018-05-25 | 2019-11-27 | Valeo Klimasysteme GmbH | A heating ventilation and air conditioning system with sound absorption means |
WO2019224094A1 (en) * | 2018-05-25 | 2019-11-28 | Valeo Klimasysteme Gmbh | A heating ventilation and air conditioning system |
CN112424004A (en) * | 2018-05-25 | 2021-02-26 | 法雷奥空调系统有限责任公司 | Heating, ventilating and air conditioning system |
Also Published As
Publication number | Publication date |
---|---|
DE19722866B4 (en) | 2008-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: BEHR GMBH & CO, 70469 STUTTGART, DE BAYERISCHE MOT |
|
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R082 | Change of representative | ||
R081 | Change of applicant/patentee |
Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, DE Free format text: FORMER OWNERS: BEHR GMBH & CO. KG, 70469 STUTTGART, DE; BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, 80809 MUENCHEN, DE Effective date: 20120224 Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, DE Free format text: FORMER OWNER: BEHR GMBH & CO. KG, BAYERISCHE MOTOREN WERKE AKTIEN, , DE Effective date: 20120224 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20141202 |