EP1613503A1 - Siege de vehicule - Google Patents

Siege de vehicule

Info

Publication number
EP1613503A1
EP1613503A1 EP04726129A EP04726129A EP1613503A1 EP 1613503 A1 EP1613503 A1 EP 1613503A1 EP 04726129 A EP04726129 A EP 04726129A EP 04726129 A EP04726129 A EP 04726129A EP 1613503 A1 EP1613503 A1 EP 1613503A1
Authority
EP
European Patent Office
Prior art keywords
air
seat
vehicle
vehicle seat
air duct
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.)
Withdrawn
Application number
EP04726129A
Other languages
German (de)
English (en)
Inventor
Dirk Hartwich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls GmbH
Original Assignee
Johnson Controls GmbH
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 Johnson Controls GmbH filed Critical Johnson Controls GmbH
Priority to EP11003557A priority Critical patent/EP2363318A3/fr
Priority to EP11003581A priority patent/EP2360052A3/fr
Publication of EP1613503A1 publication Critical patent/EP1613503A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00285—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
    • 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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/003—Component temperature regulation using an air flow

Definitions

  • the invention relates to a vehicle seat according to the preamble of the independent claims.
  • motor vehicles are increasingly being equipped with comfort functions so that their use, for example at high outside temperatures and / or high solar radiation, is facilitated.
  • climate seats in motor vehicles, which are provided in such a way that usable areas, i.e.
  • usable areas i.e.
  • those surfaces that a user touches, for example by placing or leaning against, are selectively provided in their surface temperature and in particular allow cooling or heating of the usable surfaces.
  • cooling of the usable areas is accomplished by setting up an air flow in an air duct in the vehicle seat, which ensures that heat is dissipated from the surface of the usable areas.
  • a seat cushion part for vehicle seats which is provided with a molded part made of an air-permeable material and a ventilation device arranged on a rear side of the molded part and is provided in the above-mentioned manner for cooling the surface of the seat cushion part ,
  • a ventilation device arranged on a rear side of the molded part and is provided in the above-mentioned manner for cooling the surface of the seat cushion part .
  • due to the arrangement of the ventilation device on the rear of the seat such a vehicle seat has a large installation space, which has a disadvantageous effect on its usability in vehicles - particularly from a cost point of view.
  • the invention is therefore based on the object of providing a temperature-adjustable vehicle seat which has a very small installation space or a very small overall depth, in particular with regard to the thickness of its backrest and with regard to the overall height of its seat substructure. Furthermore, if the air conditioning system is usually present in the vehicle, the conditioned air is to be transported as directly as possible from the interior of the vehicle to cool the seats of the air conditioning seat. Another task is to bring the air cooling the usable surfaces to the entire surface to be cooled, if possible without an additional air distribution layer, which further reduces the structural depth of the seat.
  • a vehicle seat with a fan, a usable area and an air supply opening is provided, in which the fan produces a directed air flow in an air duct located between the usable area and the air distribution opening and dividing into at least two air duct arms, the fan being in the direction of travel of the Vehicle-oriented vehicle seat is provided on the side of the vehicle seat.
  • a vehicle seat with a usable area and an air supply opening is provided, the usable area being connected to the air supply opening via at least one air duct, a directional air flow being provided in the air duct, the cross-section being reduced in one direction from the air supply opening to the usable area the air duct is provided.
  • Another object of the present invention is a method for controlling the strength of the heat transport performance of an air flow in an air duct of a vehicle seat which is used in a vehicle, the heat transport performance of the air flow being provided as a function of whether a measured actual vehicle temperature inside the vehicle is above a predetermined vehicle target temperature.
  • the climatic performance of the seat can advantageously be controlled via the vehicle interior temperature.
  • An embodiment is preferably provided in which the strength of the air flow is used as a measure of the strength of the heat transport performance of the air flow. This is advantageous because the strength of the air flow is a particularly easily accessible variable with - together with the decisive temperature difference - an influence on the heat transfer performance.
  • Vehicle target temperature is set by the actual vehicle temperature and, in the event that the actual vehicle temperature is in the range of the target vehicle temperature, only air flow strengths can be set which are in the range of the weaker of the two differently strong air flows. This advantageously prevents hypothermia of users of the vehicle seat which is detrimental to health.
  • Figures 1 and 1a a vehicle seat according to the invention in a perspective
  • FIG. 2 shows two detailed views of an air supply opening of the air conditioning seat
  • FIG. 5 shows an example of an operating unit for regulating the air-conditioning seat
  • Figures 6, 7 and 8 a temperature diagram, a diagram of the fan speed and a
  • FIG. 9 the backrest of a vehicle seat according to the invention.
  • FIG. 10 shows a vehicle seat according to the invention with various options for fans that can be installed
  • FIGS. 11 and 12 show two sectional illustrations to illustrate
  • FIG. 13 shows a schematic illustration of a vehicle interior with two climate seats according to the invention to illustrate air movements.
  • a vehicle seat 30 according to the invention is shown in a perspective view.
  • the vehicle seat 30, or seat 30 for short, is provided according to the invention as an air-conditioning seat 30 and includes, for example, a backrest 31 and a seat part 32.
  • the backrest 31 has, for example, a backrest structure 3 and an upholstery not designated by a reference number.
  • the seat part 32 has a seat part structure which is not identified by a reference number and an upholstery which is likewise not identified by a reference number.
  • the seat 30 also has a fan 1, which is also referred to below as a fan 1. According to the invention, the fan 1 is attached laterally to the backrest structure 3 or the seat part structure.
  • the fan 1 can also be attached to the upholstery of the backrest 31 or the seat part 32.
  • An air duct 5 leads from the fan 1 to various locations on the usable surface 71, part of the usable surface 71 being provided on the backrest and part of the usable surface 71 on the seat part.
  • a single fan is only provided on the backrest 31, a flexible connecting element 9 being provided to supply the useful surface 71 of the seat part 32, which makes up part of the air duct 5 and to which a distribution section 100 of the air duct 5 is directly connected
  • FIG. 1 a shows two enlarged details of the seat 30, in which the upholstery of the back 31 and the seat part 32 is not mounted, which is why the back structure 3 and the lateral attachment of the fan 1 to the back structure 3 are more clearly visible.
  • FIG. 2 shows two detailed views of an air supply opening of the air-conditioning seat 30.
  • the air supply opening comprises a grille 4 and a funnel 2.
  • the air supply opening 2, 4 is connected to the fan 1 and, in the example, laterally attached to the backrest structure 3, not shown in FIG. 2.
  • the funnel 2 is provided with optimized ventilation.
  • the fan is provided as a blowing fan 1, the fan 1 sucking in air through the air supply opening 2, 4 and blowing it into the air duct 5.
  • the grille 4 can alternatively also be provided as an air-permeable fabric or, in addition to the grille 4, an air-permeable fabric - in particular for "pre-filtering" the air blown into the air duct 5 - can be provided at the air supply opening 2, 4.
  • a suction fan instead of a blowing fan; it would only change the operating direction of the fan.
  • a fan 1 or a fan module is attached laterally to the backrest structure 3 or to the backrest upholstery.
  • This lateral arrangement - similar to an airbag module - enables an air-conditioning seat 30 with a very small installation depth - i.e. the depth of the backrest 31 or the seat part 32 - to realize.
  • the fan 1 can also be positioned laterally on the seat part structure. In both cases, the air flows in the air duct 5 approximately parallel to the useful surface 71, i.e.
  • FIGS. 3 and 3a show two sectional views to illustrate two alternative construction variants of the air-conditioning seat 30 between the air duct 5 and the useful surface 71.
  • the air duct 5 is divided into a plurality of air duct arms, starting from the air supply opening 2, 4.
  • FIGS. 3 and 3a each show two such air duct arms as sections of the air duct 5 in cross section.
  • the shape of the air duct 5 and its air duct arms is achieved according to the invention, for example, by giving a foam material 51 a corresponding shape in such a way that the air duct 5 is formed when the foam material 51 is covered by further material layers.
  • an air-permeable and perforated layer 6 is provided above the air duct 5, ie above the foam material 51, in which, for example, the seat heating 6 of the seat 30 is accommodated.
  • An air-permeable upper material 7 or an upper fabric 7 of the seat 30 is provided above the seat heating 6.
  • an air distribution layer 8 for example made of rubber hair or spacer fabrics, is provided which supports the fine distribution of the air.
  • the air duct 5 is provided in its air duct arms very delicately or branched.
  • the layer 6 receiving the seat heater 6 can be realized by means of an air-permeable and perforated fleece or a corresponding other material.
  • the seat heater 6 or the layer 6 replacing it should be glued to the foam top of the foam material 51 in order to form a load-bearing layer 6 above the air channels.
  • This "bridge effect” is necessary in order to prevent the upper fabric 7 from falling into the air duct 5 or its air duct arms.
  • the "bridge effect" can be supported by the use of rubber hair, in particular in an air distribution layer 8.
  • FIGS. 4, 4a show sectional representations of part of an air duct 5 along the flow direction of the air in the air duct 5 in two alternative embodiments of the air duct 5.
  • the arms of the air duct 5 are designed in such a way that the back pressure in the arms increases continuously and thus part of the air flows to the seat surface 71.
  • the layer structure above the air duct 5 is only schematized in FIGS. 4 and 4a and is shown without reference numerals of the layer covering the air duct 5.
  • the increase in the back pressure in the air duct 5 is achieved according to the invention in particular in that the cross section of the air duct 5 in the air duct arms in one direction from the air supply opening 2, 4 to the usable surface 71 - that is to say in the direction of flow identified by arrows 52 of the air flow in FIG the air - is continuously reduced.
  • FIG. 4 two differently sized cross-sectional areas 53, 54 of the air duct 5 are shown at different points in the air duct 5 along the flow direction of the air.
  • This reduction in the cross section of the air duct 5 is achieved in particular in the case of a rectangular shape of the air duct 5 in its air duct arms, which is shown by way of example in FIG. 4, by reducing the height of the air duct 5 in the flow direction of the air and maintaining the width.
  • FIG. 4a shows a second embodiment of an arm of the air duct 5.
  • the top of the air duct 5 is partially closed in its air duct arms with a fleece and only opened upwards at certain intervals.
  • the points closing the air duct 5 are provided with the reference number 12 in FIG. 4a.
  • an air-permeable cover layer 15 or padding 15 is provided.
  • the reference numeral 14 designates that surface of a user, for example his buttocks surface, which touches the useful surface 71 of the seat 30.
  • FIG. 4b shows a top view of the second embodiment of the air duct 5 in the state occupied by a user 14.
  • FIG. 5 shows an example of an operating unit 40 for regulating the air-conditioning seat 30.
  • a display 41 of the vehicle interior temperature is shown on the left-hand side and an adjustment option 42 for the temperature of the seat 30 is provided on the right-hand side, the vehicle interior temperature and vehicle seat temperature generally having a certain temperature difference - the vehicle interior temperature is usually approximately 21 ° C and the vehicle seat temperature about 14 ° C above - and the vehicle seat temperature is adjustable within certain limits according to the wishes of the user.
  • FIG. 6 shows a temperature diagram for a cooling curve of a vehicle with an air-conditioning seat 30
  • FIG. 7 shows a diagram of the fan speed
  • FIG. 8 shows a heat flow diagram.
  • the diagrams are arranged one below the other in the order specified and represent temporal profiles of the temperature 410, the fan speed 420 and the heat flow 430.
  • the axis designated by reference numeral 400 is therefore a time axis.
  • the starting point in time of the diagrams is provided with the reference symbol 401 and represents the state of a vehicle overheated, for example, by strong solar radiation.
  • FIG. 6 shows an interior temperature curve 412 and a seat temperature curve 413.
  • the interior is cooled, for example, by an air conditioning system, not shown, so that there is a reduction in the interior temperature 412 over time 400 in FIG. 6.
  • the Air-conditioning seat 30 according to the invention and in particular its fan 1 are strongly activated, which is shown by a comparatively high first fan speed 422 during a cooling phase designated in all diagrams with reference number 402. Due to the effect of the comparatively large first fan speed 422, the heat transport power 430 or the heat flow 430 from the seat 30 to the user of the seat 30 drops sharply during the cooling phase 402 until it has dropped to approximately zero at the end of the cooling phase 402, ie there is no heating more of the user through the seat 30 instead.
  • the fan power or the fan speed 420 increases from its first value 422 a second fan speed 423 is reduced.
  • the fan speed 420 can only vary in the area 424 of the second fan speed 423 as long as the interior temperature is not significantly exceeded by the interior temperature (for example due to renewed solar radiation when the air conditioning system is switched off).
  • the exclusive variation of the fan speed 420 in the area 424 of the second fan speed 423 takes place in order to prevent excessive cooling or undercooling of a user of the seat 30.
  • a user of the seat 30 is enabled to vary the seat temperature within a predetermined range by means of a variation in the heat transfer performance of the seat 30 and thus a variation in the heat flow 430.
  • a variation of the heat transport performance can also take place on the basis of a sensor signal which originates from a sunlight sensor designated by reference numeral 416 in FIG.
  • this variation in the heat transport capacity of the seat 30 is achieved in particular by varying the strength of the air flow in the air duct 5 of the seat 30, which is provided in particular by varying the fan speed in the area 424 around the second fan speed 423.
  • the first fan speed 422 corresponds to a first strength of the air flow in the air duct 5 and the second fan speed 423 corresponds to a second strength of the air flow in the air duct 5 of the seat 30.
  • the vehicle interior temperature is generally controlled by a temperature sensor 411 shown in FIG.
  • the sensor 411 is in particular in the vehicle center console or on the A- or B-pillar arranged. This sensor 411 determines the current vehicle interior temperature, the so-called actual vehicle temperature, which is compared with the desired vehicle interior temperature, the so-called target vehicle temperature, which is set via the operating unit 40.
  • the air conditioning system of the vehicle not shown, is then controlled by means of these temperature values.
  • FIG. 9 shows the backrest 31 of a vehicle seat 30 according to the invention with the fan 1 and the connecting element 9 or the distribution section 100 for supplying the seat part (not shown in FIG. 9).
  • FIG. 10 shows a vehicle seat 30 according to the invention with various options for fans 1 or fan modules that can be installed.
  • a fan module 10, 11 can also be installed in the seat according to the invention, the fan module 10, 11 comprising, for example, either one fan or two fans.
  • the air supply opening 2, 4 then generally has to be adapted to the respective case.
  • the fan module 10, 11 is flange-mounted on the side of the seat 30 in a modular design and covered with a grille 4 provided, for example, as a protective grille.
  • the air duct arms of the air duct 5, which branch into the areas of the useful surface 71, can be seen particularly well in FIG.
  • FIGS. 11 and 12 show two sectional representations of arms of the air duct 5 to illustrate the effect of compensation elements 13, which counteract a reduction in the cross section of the air duct 5 when the useful surface 71 of the air-conditioning seat is loaded. Since the reduction in cross section of the air channels 5 in the occupied state due to the load by a user 14 leads to an increase in the pressure loss, a reduction in the cross section of the air channels should be avoided as far as possible.
  • the compensation elements 13 are attached as foam webs 13 on the underside of the foam material 51 or the seat cushion 51, ie on the side of the air duct 5 opposite the useful surface 71, these foam webs 13 are deformed and not in the "occupied" state of the seat 30 the air duct 5 or the arms of the air duct 5 in the vicinity of the usable surface 71.
  • FIG Unoccupied usable area 71 shown the foam webs 13 are largely not deformed.
  • the situation with occupied usable area 71 is shown in FIG. 12: the foam webs 13 are largely deformed.
  • FIG. 13 shows a schematic illustration of a vehicle interior with two climate seats 30 according to the invention to illustrate air movements.
  • the fan modules 10, 11 are arranged laterally on the backrests of two vehicle seats 30 arranged side by side.
  • the fan modules 10, 11 are preferably arranged on the vehicle interior of the seats 30, ie the side of the seats 30 pointing into the vehicle interior.
  • Airbag modules are provided on the outside of the vehicle seats, for example, so that the attachment of the fan modules 10, 11 on the inside of the seats 30 avoids space problems.
  • a fan 1 or a fan module 10, 11 can also be provided on the outside.
  • a fan 1 to the side, ie preferably on the inside of the seat, both on the backrest 31 and on the seat part 32 of the seat 30.
  • the fan 1 attached to the backrest 31 preferably ventilates the backrest 31 and the fan 1 attached to the seat part 32 ventilates the seat part 32.
  • the cool air provided by the air conditioning system of the vehicle becomes from the air nozzles provided only with arrows in FIG. 13 to the air supply opening 2, 4 of the seat 30 and from there to the useful surface 71, in particular to the seat surface. This cooling of the seat surface enables heat to flow away from the occupant into the seat.
  • the arrangement of the fan 1 or the fan module 10, 11 on the side of the seat 30 on the inside of the passenger compartment of the vehicle allows the cool and dehumidified air from the air conditioning system, which reduces the temperature in the vehicle interior, to be seated in a particularly simple and direct manner and thus be supplied to the user.
  • the provision of the cold air for the seat cooling would be possible only later if the fan 1 were arranged under the seat 30 or in an encapsulated region of the backrest 31. Due to the resulting close connection between the vehicle interior temperature and the vehicle seat temperature, the climatic performance of the seat 30 can be controlled in a particularly simple manner via the vehicle interior temperature.
  • the fan power or the fan speed of the seat 30 can thus exceed the air conditioning system usually present in the vehicle can be regulated in a simple manner, so that a user of the vehicle is seated in the comfortable temperature range and hypothermia which is detrimental to health is not possible.
  • the temperature sensor 411 and the sunlight sensor 416 constantly measure the thermal load present in a vehicle and compare this with the desired vehicle interior temperature. If the actual value of the vehicle interior temperature is greater than the target value, the performance of the air conditioning system is increased, i.e. more or colder air is transported inside the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Seats For Vehicles (AREA)

Abstract

La présente invention concerne un siège de véhicule et un procédé associé. Ce siège de véhicule comprend au moins un ventilateur, au moins une surface utile et au moins un orifice d'alimentation en air. Le ventilateur permet de produire un courant d'air dirigé dans un canal d'air se trouvant entre la surface utile et l'orifice d'alimentation en air. Lorsque le siège de véhicule est orienté dans la direction de conduite du véhicule, le ventilateur se trouve sur le côté du siège de véhicule.
EP04726129A 2003-04-08 2004-04-07 Siege de vehicule Withdrawn EP1613503A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11003557A EP2363318A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule
EP11003581A EP2360052A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316275A DE10316275B4 (de) 2003-04-08 2003-04-08 Fahrzeugsitz
PCT/EP2004/003722 WO2004089689A1 (fr) 2003-04-08 2004-04-07 Siege de vehicule

Publications (1)

Publication Number Publication Date
EP1613503A1 true EP1613503A1 (fr) 2006-01-11

Family

ID=33154137

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11003581A Withdrawn EP2360052A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule
EP04726129A Withdrawn EP1613503A1 (fr) 2003-04-08 2004-04-07 Siege de vehicule
EP11003557A Withdrawn EP2363318A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11003581A Withdrawn EP2360052A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11003557A Withdrawn EP2363318A3 (fr) 2003-04-08 2004-04-07 Siège de véhicule

Country Status (6)

Country Link
US (1) US7467823B2 (fr)
EP (3) EP2360052A3 (fr)
JP (1) JP2006524159A (fr)
CN (1) CN100480095C (fr)
DE (1) DE10316275B4 (fr)
WO (1) WO2004089689A1 (fr)

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Also Published As

Publication number Publication date
EP2363318A2 (fr) 2011-09-07
US20060290175A1 (en) 2006-12-28
DE10316275B4 (de) 2009-06-18
DE10316275A1 (de) 2004-11-11
CN1798668A (zh) 2006-07-05
WO2004089689A1 (fr) 2004-10-21
EP2360052A3 (fr) 2012-01-11
EP2360052A2 (fr) 2011-08-24
US7467823B2 (en) 2008-12-23
JP2006524159A (ja) 2006-10-26
CN100480095C (zh) 2009-04-22
EP2363318A3 (fr) 2012-01-11

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