WO2009003620A1 - Dispositif de ventilation de siège pour un siège de véhicule - Google Patents

Dispositif de ventilation de siège pour un siège de véhicule Download PDF

Info

Publication number
WO2009003620A1
WO2009003620A1 PCT/EP2008/005131 EP2008005131W WO2009003620A1 WO 2009003620 A1 WO2009003620 A1 WO 2009003620A1 EP 2008005131 W EP2008005131 W EP 2008005131W WO 2009003620 A1 WO2009003620 A1 WO 2009003620A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
cushion
air
ventilation device
backrest
Prior art date
Application number
PCT/EP2008/005131
Other languages
German (de)
English (en)
Inventor
Karl Pfahler
Lothar Renner
Krunoslav Valentic
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2009003620A1 publication Critical patent/WO2009003620A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5664—Heating or ventilating devices characterised by convection by air with unforced air circulation, i.e. not using a fan or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5671—Heating or ventilating devices characterised by convection by air forming a windbreak, e.g. warm air blown on the neck of the passenger of an open vehicle

Definitions

  • the invention relates to a seat ventilation device for a vehicle seat of a motor vehicle, in particular an open passenger car, specified in the preamble of claim 1.
  • the invention relates to a vehicle seat, in particular for an open passenger car, the type specified in the preamble of claim 12.
  • EP 04 11 375 A1 discloses a seat for vehicles with a seat cushion and a hinged backrest. Further, the seat has an intake passage connected to an air conditioner of a vehicle and an exhaust passage communicating with the intake passage and disposed on the seat back at such a position that at least a part of the conditioned air obtained from the intake passage is supplied to a rear seat passenger becomes. Further, in the seat cushion or in the seat back, there is formed a chamber connected between the inlet passage and the outlet passage where at least part of the obtained conditioned air flows. The chamber has a shape that allows a heat exchanger between the air conditioning air flowing therein and the body of the seated passenger.
  • DE 196 28 698 C1 discloses such a vehicle seat with such a seat ventilation device as known.
  • a channel arrangement is provided within a seat cushion cushion and a backrest cushion of the vehicle seat, which comprises as an essential part of a large-sized or a large flow channel forming ventilation layer, which is essentially formed by a spacer knitted fabric.
  • Each channel arrangement or ventilation layer can be supplied with air via in each case one air inlet-with a plurality of respective air inlet ducts-wherein a mini-fan is arranged in each case within the air inlet ducts.
  • each channel arrangement or ventilation layer respectively comprises an air outlet with a plurality of air outlet channels, via which the air circulated through the ventilation layer and enriched with moisture of the seat occupant can escape from the respective cushion.
  • a circulation system in which the air is conveyed by means of respective miniature fan in or through the ventilation layer, before it passes through the air outlet ducts out of the respective pad out into the open.
  • moisture or sweat of the seat occupant is transported away, which passes through the seat cover of the cushion and through a arranged below this, air and moisture-permeable cover layer in the region of the ventilation layer, from where it is transported away.
  • the air inlet ducts are thus provided with respective miniature fans, whereby the accelerated by the miniature fan air after Flowing through the ventilation layer automatically passes out of the ventilation layer.
  • An alternative system for this purpose provides that the air outlet channels are formed closed by miniature fan, so that there the air flow flowing through the ventilation layer is generated by a suction function of the miniature fan.
  • Object of the present invention is to provide a seat ventilation device and a vehicle seat of the type mentioned, by means of which a particularly good and easy-working seat ventilation can be achieved.
  • the channel arrangements within the backrest cushion and the seat cushion pad for overflow of at least a partial air flow over the respective air inlet or air outlet are in operative connection.
  • the respective air inlet and the respective air outlet of the channel arrangements of the backrest cushion and the seat cushion cushion are arranged relative to one another such that at least a partial air flow can pass from one to the other channel arrangement or from one cushion to the other.
  • an air flow first passes through the channel arrangement of the seat cushion pad up to an air outlet, from where this to the operative air inlet of the
  • Backrest cushion passes and flows through this.
  • at least a partial air flow first flows through the backrest cushion and then through the seat cushion cushion.
  • a further partial air flow may be provided, which passes from outside into the second channel arrangement and therefore only one of the two channel arrangements - especially that within the backrest cushion - flows through.
  • Seat ventilation device conceivable in which can be completely dispensed miniature fan, as well as a solution in which the described arrangement is used to support miniature fans.
  • the second variant can then be simplified accordingly, so that a smaller number of miniature fans or smaller dimensioning miniature fans can be used.
  • the respective channel arrangement comprises a plurality of channels which extend in the extension direction of the corresponding pad.
  • the extension direction of the pad is to be understood in the seat cushion cushion, the vehicle longitudinal direction. In a backrest cushion, this is to be understood as the course in the vehicle vertical direction.
  • the respective channel arrangement comprises a plurality of channels which extend transversely to the extension direction of the corresponding pad.
  • the air circulation within the associated channel arrangement is to be additionally improved.
  • Figure 1 is a schematic and cutout side view of a trained as a roadster passenger cars with a seat cushion pad and a backrest pad, which are equipped with a seat ventilation device for the removal of body moisture or sweat.
  • FIG. 2 shows a schematic perspective view of the vehicle seat according to FIG. 1;
  • FIG. 3 is a schematic and fragmentary sectional view through the pad of the seat cushion part or the backrest part of the vehicle seat, wherein a channel arrangement can be seen;
  • Fig. 4 is a schematic side view of the
  • Fig. 5 is an enlarged side view of the detail V in Fig. 4 showing the rear end of the seat cushion pad and the lower end of the seatback cushion, wherein an air outlet of the seat cushion side channel assembly and an air inlet of the backrest side channel arrangement for overcurrent of at least a partial air flow are in operative connection;
  • FIG. 6 shows a schematic front view obliquely from above of the vehicle seat according to FIG. 2, wherein in particular a seat cover in the form of a leather cover can be seen, which covers respective air inlets or air outlets of the channel arrangements within the seat cushion cushion and the backrest cushion, wherein in the region of the air inlets resp Air leaks a perforation of the leather cover is provided, which has enlarged openings;
  • Fig. 7 is a schematic and perspective
  • FIG. 8 shows a schematic perspective view of an occupant seated inside the vehicle seat according to FIG. 2, in which air entering the seat cushion cushion or the backrest cushion is symbolically indicated, in particular, via respective air inlets; and in
  • FIG. 9 shows a schematic side view of a seat occupant positioned on the vehicle seat, wherein in particular a stream of air emerging from the channel arrangement of the backrest cushion via the corresponding air outlet is indicated which emerges from the vehicle seat after flowing through the seat cushion cushion or the backrest cushion.
  • Fig. 1 is a schematic side view as a
  • a driver-side vehicle seat 10 can be seen schematically, which is shown in Fig. 2 in a schematic perspective view.
  • the vehicle seat 10 includes a seat cushion portion 16 and a backrest portion 18 which supports a headrest 14. Both the seat cushion part 16 and the backrest part 18 each include a seat cushion cushion 17 and a backrest cushion 19, whose basic construction will be explained in more detail below with reference to FIG. 3.
  • FIG. 3 shows in a sectional and schematic sectional view the basic structure of the at least substantially identical seat cushion cushion 17 or backrest cushion 19.
  • the cushion 17 or 19 comprises a thick cushion support 20, which consists for example of a foam overlay, at the bottom of which or back of a support member 22 is provided made of plastic.
  • a corresponding channel arrangement 23, 24 is introduced from an upper side 26 in each case.
  • Each channel arrangement 23, 24 comprises a plurality of channels 28 which extend parallel to one another and in the extension direction of the respective pad 17 or 19 and which are crossed by a plurality of channels 30 which are also parallel to one another and transverse to the extension direction of the respective pad 17, 19.
  • the vehicle longitudinal direction is essentially to be understood.
  • the direction of extension is to be understood as meaning essentially the vehicle vertical direction.
  • the channels 28, 30 are arranged on the upper side 26 of the cushion pad 20, that they are formed open at the top.
  • the individual channels are closed 28, 30 through an especially in connection with Fig. 7 further explained in more detail below air guide layer 32 and another layer 34 with capillary action, which will also be explained in more detail below with reference to FIG. 7.
  • additional air ducts 40 are connected at some junctions 38 between the ducts 28, extending in the direction of extent and transversely to the extension direction of the respective upholstery 17, 19, the air inlet openings 42 of which are cut out of the support part 22.
  • the channels 28 can be flowed through in a manner described in more detail below by an air flow, whereby body moisture or sweat of the seat occupant can be transported accordingly.
  • FIGS. 4 and 5 thus discern a schematically indicated air stream which flows through the channel arrangements 23 and 24 of the seat cushion cushion 17 or of the backrest cushion 19 in a manner which will be described in more detail below.
  • the air outlet 50 is arranged on the side of the seat cushion pad 17 and the air inlet 52 on the side of the backrest pad 19 in a corner region of the vehicle seat 10, which is not to be covered by the seat occupant. Rather, the seat occupant forms through his buttocks a limited space to the front. In addition, this space is bounded laterally by the side cheeks of the backrest part 18 and the seat cushion part 16. This results in a total of a relatively enclosed space, the suction effect within the channel assemblies 23 and 24 ensures that at least a partial air flow from the channel assembly 23 within the seat cushion pad 17 flows into the channel assembly 24 within the backrest pad 19.
  • FIG. 6 shows, in a schematic front view obliquely from above, the vehicle seat 10 according to FIG. 2.
  • a seat cover 60 which is presently designed as a leather cover, has a corresponding perforation, the openings 62 are formed enlarged in the region of the respective air inlets 46 and 52 and the respective air outlets 50, 56 relative to the other openings.
  • the perforation or their openings 62 in the front and rear portions 44, 48 of the seat cushion cushion 17 and in the upper and lower portions 58, 54 of the backrest cushion 19 are formed correspondingly enlarged.
  • the respective channel arrangement 23, 24 is designed so that their respective air inlets 46, 52 and air outlets 50, 56 directly adjacent to below the respective seat cover 60.
  • Fig. 7 is a schematic and perspective sectional view of the basic embodiment of the seat ventilation device using the seat cushion pad 17 again clarified.
  • the arrows 64 and 66 illustrate the entry and exit of an air flow in the front and rear regions 44, 48 of the seat cushion cushion 17.
  • Extension direction extending channels 28 are provided, which extend between the corresponding air inlet 46 and the corresponding air outlet 50.
  • the channels are again covered by the air-guiding layer 32, which in the present case is formed, for example, from a knitted fabric or the like, which consequently can also be flowed through by the air flow.
  • the air guiding layer 32 is thus an extremely uniform distribution of the air flow below the Seat cover 60 reached.
  • the layer 34 with capillary action can be seen, which in the present case consists, for example, of a fleece.
  • This layer 34 acts, for example, in the manner of an extinguisher blade, which absorbs body moisture or sweat correspondingly quickly - mediated by the seat cover 60 - and passes it on to the air-conducting areas - the air-guiding layer 32 and the channel arrangement 23.
  • the layer 34 also ensures that the channel assembly 23 is not on the outside of the vehicle seat 10 - ie in the area of the seat cover 60 - signs.
  • FIG. 8 furthermore shows the vehicle seat 10 according to FIG. 2 with a seat occupant positioned therein.
  • the air inlet 46 is centrally located in the front region 44 of the seat cushion cushion 17 so that the seat occupant does not cover the air inlet 46 with his thighs.
  • FIG. 8 shows that, in addition to the partial air flow flowing out of the channel arrangement 23 of the seat cushion cushion 17, a further partial air flow flows into the channel arrangement 24 of the backrest cushion 19, in the manner represented by the arrows 68.
  • FIG. 9 it can be seen from FIG. 9 in which way the air flow flowing through the channel arrangement 24 leaves the backrest cushion 19 via the air outlet 56. This is arranged so that it is not covered or closed by the seat occupant. From Fig. 9 is also seen that in addition to the suction effect so-called chimney effects or thermal effects is used to promote the transport of the air flow.
  • the air which has flowed into the respective channel arrangement 23, 24 is in fact passed through the body moisture during the passage through it or the sweat of the seat occupant heats up accordingly, causing a rise of the warm air. This rising occurs in particular within the channel assembly 24 of the backrest portion 18 in appearance.
  • this thermal effect can also be achieved in the seat cushion part 16, in which the air inlet 46 lies below the air outlet 50.
  • a suction effect which also ensures improved air flow within the channel arrangement 23 of the seat cushion cushion 17, is produced via the air inlet 52 of the backrest cushion 19. Since, in addition to the above-described suction effect, there is also a thermal effect, the seat ventilation can easily be used even when the roof is closed or in a closed motor vehicle.
  • the effectiveness of the seat dehumidification is the body near the respective air inlet 46, 52 and the respective air outlet 50, 56 crucial to achieve a short path to the evaporation.

Abstract

La présente invention concerne un dispositif de ventilation de siège pour un siège de véhicule (10) comprenant une partie de coussin de siège (16) et une partie de dossier de siège (18), notamment pour un véhicule automobile ouvert. Le dispositif de ventilation de siège comprend un agencement de canaux (23, 24) disposé à chaque fois à l'intérieur d'un rembourrage (17) du coussin de siège et d'un rembourrage (19) du dossier, lequel comprend à chaque fois au moins une entrée d'air (46, 52) et au moins une sortie d'air (50, 56). Les agencements de canaux (23, 24) à l'intérieur du rembourrage (19) du dossier et du rembourrage (17) du coussin de siège sont en liaison coopérante afin de permettre l'écoulement d'au moins un courant d'air partiel par l'entrée d'air (46, 52) ou la sortie d'air (50, 56) respective.
PCT/EP2008/005131 2007-07-05 2008-06-25 Dispositif de ventilation de siège pour un siège de véhicule WO2009003620A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710031322 DE102007031322B3 (de) 2007-07-05 2007-07-05 Sitzbelüftungseinrichtung für einen Fahrzeugsitz
DE102007031322.7 2007-07-05

Publications (1)

Publication Number Publication Date
WO2009003620A1 true WO2009003620A1 (fr) 2009-01-08

Family

ID=39736934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/005131 WO2009003620A1 (fr) 2007-07-05 2008-06-25 Dispositif de ventilation de siège pour un siège de véhicule

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DE (1) DE102007031322B3 (fr)
WO (1) WO2009003620A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008053960A1 (de) * 2008-10-30 2010-05-06 Daimler Ag Kraftwagen mit einer Sitzbelüftungseinrichtung
DE202009017046U1 (de) * 2008-12-21 2010-05-12 W.E.T. Automotive Systems Ag Belüftungseinrichtung
DE102009057072B4 (de) 2009-12-04 2016-08-11 Grammer Aktiengesellschaft Polster mit Belüftung für einen Fahrzeugsitz
US9975394B2 (en) 2011-12-23 2018-05-22 Faurecia Automotive Seating, Llc Airflow management system for vehicle seat
EP2910413A1 (fr) 2014-02-25 2015-08-26 Sensirion AG Ensemble de siège muni d'un capteur de température ou d'humidité

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411375A1 (fr) * 1989-08-04 1991-02-06 FIAT AUTO S.p.A. Siège pour véhicules, pourvus d'un compartiment passager à air conditionné
DE102005019025A1 (de) * 2005-04-23 2006-10-26 Volkswagen Ag Klimatisierbarer Fahrzeugsitz mit trichterartigem Anschluss an eine Luftzuführungseinheit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19628698C1 (de) * 1996-07-17 1997-10-09 Daimler Benz Ag Fahrzeugsitz

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411375A1 (fr) * 1989-08-04 1991-02-06 FIAT AUTO S.p.A. Siège pour véhicules, pourvus d'un compartiment passager à air conditionné
DE102005019025A1 (de) * 2005-04-23 2006-10-26 Volkswagen Ag Klimatisierbarer Fahrzeugsitz mit trichterartigem Anschluss an eine Luftzuführungseinheit

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Publication number Publication date
DE102007031322B3 (de) 2008-10-16

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