WO2012069516A1 - Système de ventilation pour véhicule - Google Patents

Système de ventilation pour véhicule Download PDF

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Publication number
WO2012069516A1
WO2012069516A1 PCT/EP2011/070764 EP2011070764W WO2012069516A1 WO 2012069516 A1 WO2012069516 A1 WO 2012069516A1 EP 2011070764 W EP2011070764 W EP 2011070764W WO 2012069516 A1 WO2012069516 A1 WO 2012069516A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow resistance
air duct
ventilation system
vehicle ventilation
opening
Prior art date
Application number
PCT/EP2011/070764
Other languages
German (de)
English (en)
Inventor
Stefan Gartner
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2012069516A1 publication Critical patent/WO2012069516A1/fr

Links

Classifications

    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
    • 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
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H1/00035—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment
    • B60H1/0005—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment the air being firstly cooled and subsequently heated or vice versa
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H2001/00721—Air deflecting or air directing means

Definitions

  • the invention relates to a vehicle ventilation system with an air supply duct, a hot air duct with a heater, a cold air duct and a mixed air duct, wherein a mixed air damper is provided which is rotatably mounted about an axis.
  • Vehicle ventilation systems are known in which the mixing of the cold and hot air takes place via a plurality of independent ventilation flaps. This allows a good control of the temperature of the M isch Kunststoff, but requires a complex control of the plurality of flaps.
  • Vehicle ventilation systems are also known in which only a single flap is provided for the intake and exhaust air. However, due to the flow conditions in the vehicle ventilation system, this does not allow optimal control curves of the mixed air temperature.
  • the object of the invention is to provide a vehicle ventilation system with a simple construction and improved control of the mixed air temperature.
  • this object is achieved by a generic vehicle ventilation system, wherein the mixing air damper has a first rigid wing, which is arranged at the inlet openings of the hot air duct and the cold air duct and determines the opening degree of the inlet openings.
  • the mixing air damper has a second rigid vane, which determines the degree of opening of the outlet opening of the hot air duct, wherein a movable flow resistance component is provided on the first rigid vane, which changes the flow resistance in the cold air duct in dependence on the opening degree of the inlet opening of the cold air duct.
  • the flow resistance in the cold air duct can be varied, wherein for example in cold air operation, the flow resistance can be minimally adjusted, while in mixed air mode, the flow resistance in the hot air duct can be compensated due to the heater, whereby the control curve of the mixed air temperature is improved.
  • a simple drive of the mixing air damper can be realized by means of a drive, which makes it possible to rotate the mixing air damper about the axis and which is preferably coupled to the mixing air damper via the axis.
  • the flow resistance member increases the flow resistance with a smaller opening degree of the inlet opening.
  • the flow resistance component may be a flow resistance flap arranged on the first rigid wing.
  • the flow resistance flap has irregular shapes, for example with recesses.
  • the flow resistance flap at full opening degree of the inlet opening of the cold air duct can not increase the flow resistance in the inlet opening for cold air and / or abut the rigid wing of the mixed air damper.
  • the flow resistance component is manufactured in one piece with the mixing air damper.
  • the flow resistance component can be connected via a film hinge with the rigid wing, which also allows a cost-effective production.
  • the flow resistance component and the mixed air flap may be connected by injection-molding. Further, it is possible that the flow resistance member and the mixed air damper are mounted as an assembly in the injection mold. In particular, this so-called “in-mold assembly” makes it possible to form a very stable joint between the flow resistance component and the mixed-air flap.
  • the flow resistance component is moved together with the mixing air damper. In this way, no separate drive for the flow resistance component is necessary.
  • the control of the flow resistance component as a function of the opening degree of the inlet opening of the cold air duct can be made possible via a guide for the flow resistance component, in particular a slide guide.
  • a position of the mixed air damper may be provided, in which the first rigid wing the inlet opening the hot air duct completely closes and the second rigid wing completely closes the outlet opening of the hot air duct.
  • FIG. 1 shows the vehicle ventilation system according to the invention with the mixing air damper in a first position
  • Figure 2 is a perspective view of the vehicle ventilation system according to Figure 1;
  • FIG. 3 shows the vehicle ventilation system according to the invention with the mixed air flap in a second position of the mixed air flap
  • FIG. 4 shows a perspective view of the mixed air flap according to FIG. 3;
  • - Figure 5 shows the vehicle ventilation system according to the invention with the mixing air damper in a third position;
  • FIG. 6 shows a perspective view of the mixed air flap according to FIG. 5;
  • FIG. 7 shows a perspective detail view of the mixed air flap according to a first embodiment of the invention
  • FIG. 8 shows a perspective view of the mixed air flap according to a second embodiment of the invention
  • FIG. 9 is a perspective view of a housing portion of the vehicle ventilation system according to Figure 1 with slotted guide;
  • FIG. 10 shows a diagram of the mixed air temperature as a function of the mixing air flap position of the vehicle ventilation system according to the invention.
  • FIG. 1 shows a schematic sectional view of a vehicle ventilation system 10 with an air supply channel 12, in which an air filter device 14 is arranged, a hot air duct 16 with a heater 18, a cold air duct 20 and a mixed air duct 22.
  • the hot air duct 16 has an inlet opening 24 which communicates with the air supply duct 12 is connected, and an outlet opening 26, which opens into the mixed air channel 22.
  • the cold air duct 20 is formed in the embodiment shown substantially by a defined inlet opening 28 which connects the air supply duct 12 directly to the mixed air duct 22, which forms a bypass to the warm air duct.
  • the cold air duct 20 can also be designed in other ways.
  • a mixed air damper 30 is provided to control the degree of mixing of cold air and warm air in the mixed air duct 22.
  • the mixing air damper 30 is a two-armed lever, pivotally mounted about an axis 32 and coupled to a drive which allows the mixing damper 30 to pivot about the axis 32.
  • the air damper 30 has a first rigid wing 34 disposed on the inlet openings 24, 28 of the warm air duct 16 and the cold air duct 20 and determining the degrees of opening 38 of the two inlet openings 24, 28.
  • a movable flow resistance member 40 is provided at the mixing air damper 30 .
  • the flow resistance component 40 is arranged on the first rigid wing 34 on the side associated with the cold air duct 20 and allows a change in the flow resistance in the cold air duct 20 depending on the opening degree 38 of the inlet opening 28 of the cold air duct 20.
  • the mixing air damper 30 further has a second rigid vane 36, which determines the degree of opening of the outlet opening 26 of the hot air duct 16.
  • the mixed-air flap 30 is shown in a first position, in which the first rigid wing 34 completely closes the inlet opening 24 of the hot-air duct 16 and the second-solid wing 36 closes the outlet opening 26 d of the hot-air duct 16 vol ,
  • the hot air duct 1 6 m i t d e r heating device 18 is completely separated in this way from the air supply channel 12 and mixed air duct 22.
  • the inlet opening 28 of the cold air duct 20 is open at the maximum and has the lowest possible flow resistance, whereby a high efficiency of the vehicle ventilation system 10 is made possible.
  • the flow resistance member 40 abuts against the rigid vane 34 of the mixing air damper 30, whereby the flow resistance in the inlet opening 28 of the cold air duct 16 is not increased.
  • the flow resistance component 40 is formed as a flow resistance flap, which is connected via a hinge 42 with the first rigid wing 34 of the mixing damper 30.
  • the flow resistance component 40 has a lever 44 which engages via a projection 45 in a guide 46 designed as a slide guide.
  • the guide 46 is designed such that each position of the mixed-air flap 30 is assigned a position of the flow-resistance component 40, wherein the flow-resistance component 40 increases the flow resistance with a smaller degree of opening 38 of the inlet opening 28.
  • the lever 44 is designed so that the flow through the lever 44 itself is not or only slightly affected.
  • FIG. 2 shows a perspective view of the vehicle ventilation system 10 from FIG. 1.
  • FIGS. 3 and 4 a second position of the mixed-air flap 30 is shown, with the first rigid wing 34 partially clearing the inlet opening 24 of the warm-air duct 16 and the second rigid wing 36 partially clearing the outlet opening 26 of the warm-air duct 16.
  • the opening degree of the inlet port 24 of the warm air passage 16 is smaller than that of the inlet port 28 of the cold air passage 20.
  • FIGS. 5 and 6 show a third position of the mixed-air flap 30, with the degree of opening 38 of the inlet opening 28 of the cold-air channel 20 substantially corresponding to the opening degree 38 of the inlet opening 24 of the hot-air channel 16.
  • the flow resistance component 40 is adjusted so that the additional flow resistance in the cold air duct 20 at least partially compensates for the flow resistance in the hot air duct 16, for example due to the heating device 18.
  • FIG. 7 shows a detailed view of the mixed air flap 30 according to a first embodiment.
  • the axis 32 with the first and second rigid wings 34, 36 is integrally formed from egg NEM rigid material. Equally that is Flow resistance member 40 is formed in the form of a rectangular flap of a rigid material.
  • An encapsulation of a deformable, preferably elastic material forms on the one hand a seal along the edges of the first and second rigid wing 34, 36 and on the other hand a connection of the first rigid wing 34 with the flow resistance member 40 in the form of a hinge 42, which a relative movement of the flow resistance member 40th allows for the first rigid wing 34.
  • the M ischluftklappe 30 is formed integrally with the flow resistance member 40 and is made by two-component injection molding, wherein the mixing damper 30 with the axis 32 and the rigid wings 34, 36 and the flow resistance member 40 with the lever 44 from A first, rigid material is produced and the overmoulding 48 is made of a second, deformable material.
  • FIG. 8 shows a second embodiment of the mixed-air flap 30 with a flow-resistance component 40, which are formed in one piece, wherein the hinge 42 is designed as a film hinge.
  • the flow resistance component 40 and the M ischluftklappe 30 can be mounted as an assembly in the injection mold (in English "in mold assembly”). This allows the formation of a more stable hinge.
  • FIG. 9 shows a section of a housing 50 of the vehicle ventilation system 10, wherein the housing part 50 forms a middle wall in which the guide 46 for the lever 44 of the flow resistance component 40 is formed.
  • the drag component 40 is in each case designed as a rectangular flap.
  • the flow resistance component 40 can also be designed in other ways.
  • the flap can be provided with layouts and holes or assume variable geometrical shapes that are optimal Allow the course of the flow resistance depending on the mixed air flap position.
  • FIG. 10 shows a diagram of the mixed air temperature as a function of the mixing air flap position.
  • the thin line shows a control curve 52 for a mixed air valve 30 without flow resistance component 40.
  • the control curve 52 has a low slope, while it has a large pitch with a large degree of opening. Due to the non-uniform course of the control curve 52, a linear control of the mixed air temperature is unsuitable.
  • the thick line shows the optimized control curve 54 of the mixed air temperature for a mixed air flap 30 with flow resistance component 40 according to the invention.
  • the profile of the optimized control curve 54 is generally more homogeneous and allows, for example, easier control of the mixed air temperature according to an approximately linear model.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un système de ventilation pour véhicule, doté d'une gaine d'amenée d'air (12), une gaine d'air chaud (16) dotée d'un dispositif de chauffage (18), une gaine d'air froid et une gaine d'air mélangé (22). Ledit système de ventilation comporte un volet d'air mélangé qui est monté rotatif autour d'un axe. Le volet d'air mélangé possède une première aile fixe (34) qui est placée sur les ouvertures d'entrée (24, 28) de la gaine d'air chaud (16) et de la gaine d'air froid et qui détermine le degré d'ouverture des ouvertures d'entrée. Le volet d'air mélangé comprend en outre une deuxième aile fixe (36) qui détermine le degré d'ouverture de l'ouverture de sortie (26) de la gaine d'air chaud. La première aile fixe (34) porte un élément mobile (40) s'opposant à l'écoulement du flux qui modifie la résistance à l'écoulement dans la gaine d'air froid en fonction du degré d'ouverture (38) de l'ouverture d'entrée (28) de la gaine d'air froid.
PCT/EP2011/070764 2010-11-23 2011-11-23 Système de ventilation pour véhicule WO2012069516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010052259.7 2010-11-23
DE201010052259 DE102010052259A1 (de) 2010-11-23 2010-11-23 Fahrzeugbelüftungssystem

Publications (1)

Publication Number Publication Date
WO2012069516A1 true WO2012069516A1 (fr) 2012-05-31

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Application Number Title Priority Date Filing Date
PCT/EP2011/070764 WO2012069516A1 (fr) 2010-11-23 2011-11-23 Système de ventilation pour véhicule

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DE (1) DE102010052259A1 (fr)
WO (1) WO2012069516A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013104461B4 (de) * 2013-05-02 2022-06-09 Denso Automotive Deutschland Gmbh Klimatisierungseinrichtung für ein Kraftfahrzeug
IT201800009225A1 (it) * 2018-10-08 2020-04-08 Denso Thermal Systems Spa Dispositivo di climatizzazione per un veicolo comprendente una portella articolata.
FR3093027A1 (fr) * 2019-02-27 2020-08-28 Valeo Systemes Thermiques Installation de chauffage et/ou ventilation et/ou climatisation comportant un volet de mixage avec déflecteur
DE102019128868A1 (de) * 2019-10-25 2021-04-29 Röchling Automotive SE & Co. KG Aktive Vorrichtung mit Direktantrieb zur Veränderung von aerodynamischen Eigenschaften eines Fahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761011A1 (fr) * 1997-03-18 1998-09-25 Valeo Climatisation Dispositif de chauffage-ventilation et/ou climatisation d'un vehicule, comprenant une commande par volet
US20040194948A1 (en) * 2003-02-13 2004-10-07 Kazuji Shibata Automotive air conditioning system
EP1880881A2 (fr) * 2006-07-21 2008-01-23 Delphi Technologies, Inc. Vanne de répartition à flux variable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761011A1 (fr) * 1997-03-18 1998-09-25 Valeo Climatisation Dispositif de chauffage-ventilation et/ou climatisation d'un vehicule, comprenant une commande par volet
US20040194948A1 (en) * 2003-02-13 2004-10-07 Kazuji Shibata Automotive air conditioning system
EP1880881A2 (fr) * 2006-07-21 2008-01-23 Delphi Technologies, Inc. Vanne de répartition à flux variable

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