US20070035162A1 - Conditioning system for cooling and heating surfaces, particularly automobile seats - Google Patents

Conditioning system for cooling and heating surfaces, particularly automobile seats Download PDF

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Publication number
US20070035162A1
US20070035162A1 US10/548,606 US54860604A US2007035162A1 US 20070035162 A1 US20070035162 A1 US 20070035162A1 US 54860604 A US54860604 A US 54860604A US 2007035162 A1 US2007035162 A1 US 2007035162A1
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Prior art keywords
temperature control
fluid
control mat
layers
seat
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Abandoned
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US10/548,606
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English (en)
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Christian Bier
Stefan Kerscher
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Individual
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Individual
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    • 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
    • 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
    • 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
    • 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
    • B60H2001/00307—Component temperature regulation using a liquid flow

Definitions

  • the invention relates to a temperature control system, which can be used for the rapid cooling and possibly also heating of surfaces—in particular of car seats.
  • the invention relates to a seat and/or rest element, in particular with leather covering, and to a complete car seat, respectively fitted with such a temperature control system.
  • the invention also relates to a temperature control mat for such a temperature control system and to a temperature control method for cooling and possibly heating a seat and/or rest element.
  • the pipeline system for the cooling liquid is arranged in a temperature control mat between two layers of air-permeable material, in order that condensed water possibly occurring on the lines can dry.
  • the temperature control mat may serve as a seat support or be an integral component of the vehicle seat.
  • the system of lines undesirably presses through the seat covering and adversely affects the feel of the seat. If the system of lines is arranged further in the interior of the seat to remedy this disadvantage, however, a significant reduction in efficiency occurs because of the poor heat transfer associated with the greater distance from the temperature-controlling surface.
  • a gas may also be used for controlling the temperature of the seat.
  • a gas may also be used for controlling the temperature of the seat.
  • temperature-controlled air is directed from the rear side into the seat and backrest cushion.
  • the seat covering is air-permeable, so that the air can leave the seat again on the front side.
  • perforated seat coverings in particular made of leather, have a tendency to become clogged with dust and dirt particles and are also not desired for design reasons.
  • a further disadvantage is that the systems described only begin to work when the car is started, i.e. the driver initially sits down on a hot seat, before the cooling of the seat begins.
  • the temperature control mat according to the invention is, on the one hand, air-permeable and, on the other hand, comprises a fluid chamber system, through which a temperature control fluid is directed.
  • a fluid chamber system through which a temperature control fluid is directed.
  • two or more layers of liquid-impermeable plastic are connected to each other, for example welded or adhesively bonded, in such a way that the fluid chamber system is formed in the space between the layers of plastic.
  • a number of fluid chamber systems that are separated from one another may also possibly be formed between the layers of plastic.
  • a fluid chamber system formed between the layers of plastic comprises one or more fluid chambers for receiving the temperature control fluid and one or more fluid inlets and outlets in connection with the fluid chambers for supplying and removing the temperature control fluid to and from the fluid chamber system.
  • the maximum volume of the fluid chamber system in one embodiment may be 0.3 l/m 2 to 3 l/m 2 .
  • Some or all of the fluid chambers of the fluid chamber system are in flow connection with one another, so that the temperature control fluid can flow from the fluid inlet or the fluid inlets through the interconnected fluid chambers of the fluid chamber system to the fluid outlet or the fluid outlets.
  • the connecting zones between the fluid chambers are referred to hereafter as “fluid passages”.
  • the air permeability of the temperature control mat is based on openings arranged in a distributed manner passing through the temperature control mat. These openings pass through the layers of plastic forming the fluid chamber system in such a way that the fluid chamber system forms a closed system.
  • the temperature control mat is combined with an open spacer structure.
  • Any two-dimensional, open structure which on the one hand permits a through-flow of gas to dissipate water vapor passing through the seat covering and on the other hand is adequately flexible and nevertheless stable under pressure, so that it does not collapse even under the weight of a person imparting a load to it, can be used as the spacer structure.
  • the spacer structure may be securely connected to the temperature control mat, for example sewn or preferably adhesively bonded, so that the temperature control mat including the spacer structure can be easily handled and integrated into a seat.
  • the spacer structure preferably lies between the temperature control mat and the seat cushion, so that the sequence of the layer structure is as follows: seat covering, temperature control mat, spacer structure, seat cushion, and any additional layers lying inbetween.
  • the temperature control mat lies directly underneath the seat covering. This produces great heat conduction and short diffusion paths for water vapor.
  • the perspiration moisture passing through the seat covering then passes through the openings in the temperature control mat and into the open spacer structure and can be diffused away from there.
  • the transporting away of the moisture is preferably assisted by an air stream, which is directed through the spacer structure parallel to the surface of the seat covering, in order to remove the transmitted moisture actively.
  • the temperature control mat on one side of the spacer structure and the seat cushion usually consisting of closed-cell foam, on the other side of the spacer structure in this case define an air-directing duct for the air directed through the spacer structure.
  • the spacer structure on the other side of the temperature control mat, that is between the seat covering and the temperature control mat.
  • the effectiveness of the temperature control mat is greatly reduced, however, because of the distance from the seat covering, and the through-openings in the temperature control mat are no longer important for allowing perspiration moisture through the temperature control mat. Rather, the openings can then be used for directing an air stream from the rear side through the openings of the temperature control mat into the spacer structure.
  • the temperature of the seat covering can be influenced very rapidly and cooled down to body temperature within about 60 seconds.
  • the cooling down of a leather seat covering from about 85° C. to a comfortable body temperature of 37° C. to 40° C. can be achieved for example in one minute.
  • the temperature control fluid flows through the fluid chambers of the fluid chamber system until the desired seat surface temperature is reached.
  • an environmentally compatible liquid for example water, possibly mixed with an anti-freezing agent, such as glycol or salt solution for example, and an anti-rotting agent and other additives.
  • an anti-freezing agent such as glycol or salt solution for example
  • the seat covering can be brought to the desired temperature in a very short time, even before a person sits down on it.
  • the temperature control can be switched on automatically when the vehicle is unlocked. Activation by remote control or a timer circuit is likewise possible.
  • the temperature control liquid does not necessarily have to be cooled down to cool the seat covering, but may be pumped from a storage tank which is located at a relatively cool place, for example in the region of the vehicle floor, so that the temperature control liquid is at most at ambient temperature.
  • This storage tank preferably has an insulating casing.
  • the supply of liquid contained in it may be additionally cooled, for example during driving or possibly also when the engine is switched off, if the vehicle battery produces sufficient power.
  • a Peltier element comes into consideration for example as the cooling element.
  • the seat covering can be heated up.
  • a heated fluid such as water for example, flows through the fluid chamber system.
  • the fluid is heated by a heating element to a temperature of approximately 40° C. to 50° C.
  • the temperature control fluid is pumped through the fluid chamber system until the desired temperature is reached. Subsequently, the fluid chambers of the fluid chamber system are pumped empty. Since the fluid chamber system is formed by interconnected films of plastic, the pumped-empty chambers collapse and form a largely planar surface. To ensure complete emptying of all regions of the fluid chamber system, it is advantageous to integrate spacers, for example thin fibers, woven or non-woven fabrics, into the fluid chamber system.
  • the temperature control mat consequently does not press through the seat covering, so that the original sitting comfort properties are restored immediately after the desired seat covering temperature is reached. The visual impression of the surface is not adversely affected by the temperature control mat. A person sitting on the seat does not feel the temperature control mat at all.
  • the previously described temperature control mat is intended essentially for the cooling of surfaces, it can also be used for the heating of surfaces.
  • the two functions can also be combined.
  • a preferred embodiment provides for this purpose a bypass line in the fluid circuit, by which the cooling fluid reservoir is bypassed.
  • a heating element preferably a continuous flow heater, with which the temperature control fluid is heated, in order by this means to heat the surface.
  • the heating function of the temperature control mat according to the invention may also be combined with conventional heating elements, such as for example with an electrical resistance heater in the seat and/or backrest element and the like, merely to assist the latter.
  • the temperature control mat according to the invention can be handled easily and can be integrated into a seat and backrest element in a simple way.
  • a further advantage of the temperature control system according to the invention with the temperature control mat according to the invention is the resistance to the typical loads to which a seat element of a car seat is subjected.
  • Car seats are subjected to sustained loads, which also have to be withstood by the temperature control system integrated into the seat.
  • Conventional pipeline and hoseline temperature control systems can in this case be displaced and mechanically damaged considerably over time unless they are integrated into the seat element in a complex way.
  • the temperature control mat according to the invention can be securely connected in a simple way to the seat covering or the cushion core by adhesive bonding and/or sewing. But even without such fixing, the temperature control mat according to the invention is not displaced, because of its extent over a large area under the seat covering.
  • the high resistance of the temperature control mat according to the invention is also additionally based on the very smooth surface of the films of plastic of the temperature control mat—in particular in the case of fluoropolymers—which on account of this very property does not rub against the seat covering, so that no frictional wear occurs.
  • the layers of plastic forming the fluid chamber system may have additional reinforcing layers, for example in the form of a nylon woven fabric.
  • the layers of plastic should be capable of being welded, laminated, coextruded, sintered or blow-molded with one another.
  • the following materials are suitable for example: thermoplastic polyurethane (TPU), thermoplastic polyester (TPE), polyamide (PA), polytetrafluoroethylene (PTFE), expanded polytetrafluoroethylene (ePTFE), polyvinylidine fluoride (PVDF), ethylene/tetrafluoroethylene copolymer (ETFE), fluorinated ethylene propylene (FEP) and other fluoropolymers.
  • TPU thermoplastic polyurethane
  • TPE thermoplastic polyester
  • PA polyamide
  • PTFE polytetrafluoroethylene
  • ePTFE expanded polytetrafluoroethylene
  • PVDF polyvinylidine fluoride
  • ETFE ethylene/tetrafluoroethylene copolymer
  • FEP fluorinated ethylene propylene
  • FEP fluorinated ethylene propylene
  • TPU is suitable to a particular extent because of its flexibility along with good affinity for adhesive bonding with other materials, in particular with leather.
  • Fluoropolymers are suitable because of their diffusion impermeability and good sliding properties, and accompanying resistance to wear, but are less well able to bond adhesively with seat covering materials. Fluoropolymers are additionally highly temperature-resistant and are therefore particularly suitable in combination with a heating element integrated into the cushion. Such heating elements may be up to 120° C. hot.
  • a particularly temperature-resistant fluoropolymer is, for example, PTFE.
  • fluoropolymers are distinguished by high chemical resistance, which is significant when additives are used in the temperature control fluid.
  • the layers of plastic from which the fluid chamber system is formed should be as thin and flexible as possible, in order that the fluid chamber system can be emptied without difficulties and thereby collapses without any major folds, so that the deactivated temperature control mat cannot be felt or seen through the cushion covering.
  • the layers of plastic may, for example, respectively have a thickness in the range from 10 ⁇ m to 1 mm, good results having been achieved for example with a layer thickness of 200 ⁇ m in each case.
  • the variant of a partly open system is also possible.
  • the emptying and complete filling of the fluid chamber system is additionally assisted by at least one of the layers of plastic forming the fluid chamber system being liquid-impermeable but air-permeable, at least in certain regions, so that an exchange of air can take place through the fluid-chamber wall, in particular the venting of undesired inclusions of air.
  • Particularly suitable in this connection is expanded polytetrafluoroethylene (ePTFE) with a low porosity, to keep the evaporation losses low during operation.
  • ePTFE expanded polytetrafluoroethylene
  • Tests with a low porosity of, for example, 2% to 30% (measured with a Capillary Flow Porometer CFP-1500-AXLS from PMI—Porous Materials, USA) and a high water ingress pressure of over 6 bar have produced good results.
  • the openings in the temperature control mat which serve for moisture removal may comprise 20% to 80% of the projected surface area of each of the layers of plastic forming the fluid chamber system. Good results have been obtained for example with an opening surface area accounting for 30% to 40% of the projected total surface area.
  • the contour of the openings may be chosen as desired. In particular, they do not have to be circular and may be of different sizes.
  • the openings should offer the least possible diffusion resistance and therefore in any event be macroscopic, in order not to hinder the moisture removal through the openings.
  • An average opening diameter may for example lie in the range from 1 mm to 30 mm. Good results have been obtained for example with an average opening diameter of approximately 5 mm.
  • the chambers of the fluid chamber system may also have extremely different forms. It goes without saying that a uniform arrangement of the fluid chambers is to be preferred for the purpose of uniform temperature control of the seat covering. There is in this case the possibility of realizing one or more fluid chamber systems in a temperature control mat, it being possible in turn for each fluid chamber system to have one or more fluid inlets and/or fluid outlets. One or more common fluid inlets and outlets may be provided, but fluid inlets and outlets that are independent from one another are to be preferred, to permit a continuous flow through the fluid chambers.
  • Such a structure is on the one hand uncomplicated in its production and integration into a circuit system.
  • the flow paths are short, so that the flow resistance is low and the heat transfer over the entire length of flow is virtually uniform.
  • the fluid passages formed between fluid chambers in connection with one another should have a length in the range from 3 mm to 50 mm, in order to achieve optimum mixing of the fluid.
  • the total thickness of the filled temperature control mat ranges between approximately 0.5 mm and 10 mm.
  • FIG. 1 a shows a car seat with integrated temperature control mats schematically in cross section.
  • FIG. 1 b shows the arrangement of the temperature control mats according to FIG. 1 in the car seat in plan view.
  • FIG. 2 shows the detail A from FIG. 1 during a cooling or heating phase.
  • FIG. 3 shows the same detail as FIG. 2 after a completed cooling or heating phase, during the moisture removal phase.
  • FIG. 4 shows the detail from FIG. 3 in realistic relative sizes.
  • FIG. 5 shows a first exemplary embodiment of a temperature control mat in plan view.
  • FIG. 6 shows a second exemplary embodiment of a temperature control mat in plan view.
  • FIG. 7 shows a third exemplary embodiment of a temperature control mat in plan view.
  • FIG. 8 shows a schematic representation of a temperature control circuit.
  • FIG. 1 a shows a car seat 1 comprising a seat element 2 and a backrest element 3 .
  • a temperature control mat 5 Located under the seat coverings 4 both of the seat element 2 and of the backrest element 3 there is in each case a temperature control mat 5 , which is kept at a distance from the cushion core 7 by a spacer structure 6 .
  • Water (H 2 O) is pumped as a temperature control fluid by means of a pump P from a storage tank 9 through the temperature control mat 5 through a system of fluid lines 8 , which is represented as dashed lines with thin, black arrows, in order to control the temperature of (temperature control phase), in particular to cool (cooling phase), the seat covering 4 from the rear side.
  • air is made to flow through the spacer structure 6 by means of a fan (white arrows), in order to assist the dissipation of perspiration moisture passing through the seat covering 4 .
  • FIG. 1 b shows the arrangement of the temperature control mat 5 in the car seat 1 according to FIG. 1 in plan view.
  • the cooling phase (or heating phase) is schematically represented in cross section in FIG. 2 in somewhat more detail.
  • the temperature control mat 5 comprises regularly arranged, interconnected fluid chambers 10 , the individual fluid chambers being spaced apart from one another by openings 11 penetrating through the temperature control mat 5 .
  • the fluid chamber system formed by fluid chambers 10 is filled with the cooling liquid, the fluid chambers 10 expand to a thickness which should lie between 0.5 and 10 mm, and come to bear closely against the rear side of the seat covering 4 .
  • the flow through the fluid chamber system may take place intermittently or continuously.
  • the structure of the fluid chamber system presses slightly through the seat covering 4 in this temperature control phase.
  • a shut-off valve not represented in FIG. 1
  • the fluid chambers 10 collapse, so that the temperature control mat 5 also collapses. This is schematically represented in somewhat more detail in FIG. 3 .
  • the temperature control mat 5 in the collapsed state no longer presses through the seat covering 4 . Any minor folds are not significantly noticeable.
  • the second temperature control phase begins, aimed at removing moisture perspired by the person through the seat covering 4 and the openings 11 of the temperature control mat 5 .
  • the spacer structure 6 is provided between the cushion core 7 and the temperature control mat 5 .
  • Any open structure which on the one hand is flexible, in order to make the seat comfortable to sit on, but on the other hand cannot be completely compressed under exposure to pressure, so that ventilation through the spacer structure 6 remains ensured under any circumstances, comes into consideration as the spacer structure 6 .
  • Suitable for example are nonwoven or knitted polymer-fiber fabrics. The dissipation of the moisture transported through the seat covering 4 is assisted by an actively produced air stream in the spacer structure 6 , which is indicated in FIG. 3 by arrows.
  • the seat covering 4 has, for example, a thickness of 1.2 mm and is water-vapor-permeable. Breathable leather, micro-perforated leather, microfibers such as Alcantara or a woven textile covering may be used as the material for the seat covering.
  • the seat covering should preferably have a Ret value of 5 to 20 m 2 Pa/W.
  • the Ret value as a specific material property of textile fabrics and other textile material structures, defines their water-vapor transmission resistance. In this case, the latent evaporation heat flux through a given area in consequence of an existing steady-state partial pressure is determined. The Ret value is ascertained by means of the Hohenstein skin model test, which is described in the standard test specification Ne. BPI 1.4 of September 1987 of the Be reliesphysio striges Institut e.V. Hohenstein.
  • the leather covering should preferably have an MVTR value (according to DIN 53 333) of greater than 10 mg/cm 2 h. Breathable leathers with an MVTR value of more than 12 mg/cm 2 h are particularly preferred. Such leathers are obtainable for example from the Vogl leather factory in Mattinghofen/Austria. In the case of a non-breathable, in particular fully sealed leather covering, a micro-perforation of the covering also comes into consideration.
  • the perspired moisture then diffuses through the permeable seat covering 4 to the temperature control mat 5 and through the openings 11 of the temperature control mat 5 into the spacer structure 6 lying thereunder.
  • the temperature control mat 5 essentially comprises two thin films of plastic 5 a , 5 b , lying one on top of the other and connected to each other in a suitable way. In the emptied state, the temperature control mat 5 has a slightly rough surface due to fold formations of the thin films of plastic 5 a , 5 b . As a result, moisture can also reach an opening 11 of the temperature control mat 5 from those points of the seat covering 4 under which an opening 11 is not directly located.
  • the path through the openings 11 is very short.
  • the filled temperature control mat 5 has a thickness of 4 mm.
  • no build-up of moisture forms in the openings 11 and no boundary layer forms between the air in the openings 11 and the air flowing through the spacer structure 6 , so that the moisture diffused through the seat covering 4 is reliably entrained by the air stream in the spacer structure 6 .
  • the opening diameters of the openings 1 are chosen to be comparatively large and, in the exemplary embodiment represented, are approximately 3.5 mm.
  • the spacer structure 6 has, for its part, a thickness of approximately 6 mm to 10 mm in the exemplary embodiment represented. Depending on the material used for the spacer structure 6 , it may be meaningful to make the spacer structure 6 thicker or thinner.
  • the spacer structure 6 With its rear side, the spacer structure 6 is adjacent to the cushion core 7 , which is for example a closed-cell foam core.
  • the air stream directed through the spacer structure 6 (arrow) is therefore guided essentially parallel to the covering between the temperature control mat 5 and the closed-cell cushion core 7 .
  • the spacer structure 6 and the temperature control mat 5 may be adhesively bonded to each other, whereby the entire arrangement can be easily handled and can be correspondingly easily integrated into a car seat. If the temperature control mat 5 is not adhesively bonded to the spacer 6 , it is essential that the spacer structure 6 has a non-abrasive surface, since otherwise damage to the thin films of plastic 5 a , 5 b of the temperature control mat 5 would have to be feared in the long term.
  • the temperature control mat 5 is preferably connected, preferably adhesively bonded, to the seat covering 4 —with or without spacer structure 6 . As a result, rubbing between the seat covering 4 and the temperature control mat 5 is avoided, whereby the service life of the temperature control mat 5 is correspondingly increased.
  • the necessary air throughput through the spacer structure 6 for removing moisture from the seat covering 4 is extremely low, since only little moisture is removed through the seat covering. Therefore, it is adequate if air is blown from the passenger compartment of the vehicle through the spacer structure 6 in an uncomplicated way by means of a simple fan with a power of, for example, 0.3 to 3 W.
  • the spacer structure 6 is connected directly or indirectly to the vehicle's ventilation system or air-conditioning system.
  • a first exemplary embodiment of a temperature control mat 5 is represented in plan view.
  • the temperature control mat 5 comprises two films which are welded or laminated to each other and penetrated by regularly distributed openings 11 .
  • a fluid chamber system comprising numerous fluid chambers 10 in connection with one another is formed.
  • the two interconnected films 5 a , 5 b may also be produced by a blow-molded and laid-flat film bubble or by coextrusion, the openings 11 being cut out from the film stack in a subsequent method step with simultaneous welding of the films.
  • the fluid chamber system may also have one or more line-like fluid chambers, which are arranged in a parallel or meandering manner. A number of fluid inlets and/or fluid outlets may also be provided.
  • the exemplary embodiment according to 5 is particularly efficient, can be easily produced and can be integrated with little effort into the seat because of the only two inlets and outlets.
  • FIG. 6 shows a second exemplary embodiment of a temperature control mat 5 likewise schematically in plan view.
  • the openings 11 are arranged offset in relation to one another, whereby they are packed more closely and the removal of moisture through the openings is correspondingly more effective.
  • FIG. 7 shows a third exemplary embodiment of a temperature control mat 5 likewise schematically in plan view.
  • two fluid inlets 13 and two fluid outlets 14 are provided.
  • Fluid can flow via a fluid-inlet distributing chamber 13 a and a fluid-outlet collecting chamber 14 a simultaneously into one and from a plurality of fluid chambers 10 adjacent thereto, which for their part are arranged partly in parallel and partly one behind the other in the direction of flow.
  • the fluid chambers 10 define fluid passages of any desired length, which should preferably have a length of approximately 50 mm or less.
  • the films forming the temperature control mat 5 are welded to each other. Provided in these welded regions are the openings 11 , through which the moisture removal takes place.
  • the temperature control mat 5 is in this case fixed on the seat cushion, not represented here, by means of seams 22 . However, adhesive bonding is to be preferred, since it does not show in the seat covering.
  • FIG. 8 schematically shows a suitable temperature control system.
  • Water H 2 O is pumped by means of a pump P from the storage tank 9 through the temperature control mat 5 and back into the storage tank 9 .
  • the volume of temperature control fluid in the overall system may lie, for example, in the range from 500 ml to 1500 ml, the storage tank 9 holding for example 800 ml or 1000 ml and the temperature control mat 5 holding between 50 ml and 250 ml, for example 200 ml.
  • the operating pressure of the pump P lies in the range between 0.2 and 2 bar, for example approximately 0.5 bar.
  • the pump running time preferably lies between 10 seconds and 120 seconds, but as far as possible should not exceed 90 seconds. The power necessary for this can be comfortably provided by the vehicle's own battery.
  • the temperature control fluid in the storage tank 9 is at ambient temperature of 32° C. to 40° C., it is possible with this system for a leather seat covering for example to be brought to a desired temperature of approximately 37° C. to 44° C. in a maximum of 90 seconds. Cooling by 40 K within less than 60 seconds is achievable. If the seat covering temperature is lowered to 35° C., for example, the temperature control mat 5 is pumped empty and the pump P is stopped. It goes without saying that higher operating pressures are also possible, provided that the fluid chamber system is designed for higher pressures. Operating pressures of 1.5 to 2 bar are currently realistically achievable. For safety reasons, the temperature control mat should withstand operating pressures of up to approximately 3 bar. The higher the operating pressure, the harder the temperature control mat 5 presses against the seat covering and the more effective the heat transfer and consequently the temperature control of the seat covering. Consequently, the heat transfer can be controlled by the system pressure.
  • the temperature in the storage tank 9 can be monitored by means of a temperature sensor and if need be cooled down by a suitable cooling device.
  • a Peltier element is suitable for example as the cooling device 15 .
  • the storage tank 9 is encased with an insulation 16 , in order to prevent heat exchange with the warmer surroundings.
  • valve 17 in the supply line of the system of fluid lines 8 is blocked and the temperature control mat 5 is pumped empty.
  • air is directed past the spacing structure 6 , not represented in FIG. 6 , on the temperature control mat 5 , as described above, by means of a simple fan.
  • a special development provides a bypass 18 , with which the cooling fluid storage tank 9 is bypassed.
  • the shut-off valve and a further shut-off valve 19 which are accordingly formed as multi-way valves, the fluid present in the temperature control system can be directed through the bypass 18 and heated by means of a heating element 20 arranged therein, for example a continuous flow heater.
  • the temperature control system may serve both as seat heating and as seat cooling.
  • the temperature control mat 5 in turn presses against the seat covering 4 , whereby an efficient heat transfer is ensured. This heat transfer is additionally assisted by the weight of the person sitting on the seat.
  • the heating element can be regulated by a temperature sensor 21 arranged in the discharge line of the system of fluid lines 8 .
  • Temperature sensors 21 are provided in the temperature control mat or directly on the seat covering and in the cooling liquid storage tank 9 . All the temperature sensors 21 are connected to a control system, not represented, in which the measured temperature values are processed and the individual components of the temperature control system are correspondingly controlled.
  • the temperature control liquid comprising a temperature of 40° C. and the system an overall volume of 800 ml.

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  • 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)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Seats For Vehicles (AREA)
US10/548,606 2003-03-06 2004-03-05 Conditioning system for cooling and heating surfaces, particularly automobile seats Abandoned US20070035162A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03004905A EP1454790B1 (fr) 2003-03-06 2003-03-06 Système de conditionnement pour refroidir et chauffer des surfaces, en particulier de siège de véhicules
EP03004905.0 2003-03-06
PCT/EP2004/002268 WO2004078517A2 (fr) 2003-03-06 2004-03-05 Systeme de climatisation destine a refroidir et a chauffer des surfaces, notamment de sieges d'automobiles

Publications (1)

Publication Number Publication Date
US20070035162A1 true US20070035162A1 (en) 2007-02-15

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US10/548,606 Abandoned US20070035162A1 (en) 2003-03-06 2004-03-05 Conditioning system for cooling and heating surfaces, particularly automobile seats

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US (1) US20070035162A1 (fr)
EP (1) EP1454790B1 (fr)
JP (1) JP2006521127A (fr)
KR (1) KR20050106503A (fr)
AT (1) ATE299810T1 (fr)
DE (1) DE50300806D1 (fr)
ES (1) ES2243821T3 (fr)
WO (1) WO2004078517A2 (fr)

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US8191187B2 (en) 2009-08-31 2012-06-05 Amerigon Incorporated Environmentally-conditioned topper member for beds
US20140265462A1 (en) * 2013-03-13 2014-09-18 Tom Fleming Portable Cooling Chamber Having Radiant Barrier and Cooling System
US9125497B2 (en) 2007-10-15 2015-09-08 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US20160039321A1 (en) * 2014-08-08 2016-02-11 Faurecia Sieges D'automobile Heating and/or cooling device for a motor vehicle seat
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US9651279B2 (en) 2008-02-01 2017-05-16 Gentherm Incorporated Condensation and humidity sensors for thermoelectric devices
US9662962B2 (en) 2013-11-05 2017-05-30 Gentherm Incorporated Vehicle headliner assembly for zonal comfort
US9685599B2 (en) 2011-10-07 2017-06-20 Gentherm Incorporated Method and system for controlling an operation of a thermoelectric device
US9857107B2 (en) 2006-10-12 2018-01-02 Gentherm Incorporated Thermoelectric device with internal sensor
US9989267B2 (en) 2012-02-10 2018-06-05 Gentherm Incorporated Moisture abatement in heating operation of climate controlled systems
US10005337B2 (en) 2004-12-20 2018-06-26 Gentherm Incorporated Heating and cooling systems for seating assemblies
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US10821862B2 (en) * 2018-12-06 2020-11-03 Ford Global Technologies, Llc Temperature control system for seating assembly
US10991869B2 (en) 2018-07-30 2021-04-27 Gentherm Incorporated Thermoelectric device having a plurality of sealing materials
US20210162899A1 (en) * 2017-10-27 2021-06-03 Gentherm Gmbh Surface temperature-controlling device
US11033058B2 (en) 2014-11-14 2021-06-15 Gentherm Incorporated Heating and cooling technologies
CN113165554A (zh) * 2019-01-28 2021-07-23 宝马股份公司 具有调温装置的车辆座椅
US11104253B2 (en) * 2018-01-22 2021-08-31 Padmini Vna Mechatronics Pvt. Ltd. Flexible heat exchanger for thermal control of seating surfaces
US11152557B2 (en) 2019-02-20 2021-10-19 Gentherm Incorporated Thermoelectric module with integrated printed circuit board
US11161436B1 (en) * 2020-11-16 2021-11-02 Altec Industries, Inc. Heated seat for mobile hydraulic equipment
US11240882B2 (en) 2014-02-14 2022-02-01 Gentherm Incorporated Conductive convective climate controlled seat
US20220134921A1 (en) * 2020-10-29 2022-05-05 Ford Global Technologies, Llc Seat component for a vehicle seat and vehicle seat
US11433790B2 (en) * 2018-04-30 2022-09-06 Youngmin Hightech Co., Ltd. Air duct for ventilation seat and ventilation seat having same for vehicle
US11495204B2 (en) 2017-09-14 2022-11-08 Bayerische Motoren Werke Aktiengesellschaft Lining component and motor vehicle
US11639816B2 (en) 2014-11-14 2023-05-02 Gentherm Incorporated Heating and cooling technologies including temperature regulating pad wrap and technologies with liquid system
US11857004B2 (en) 2014-11-14 2024-01-02 Gentherm Incorporated Heating and cooling technologies
US11993132B2 (en) 2018-11-30 2024-05-28 Gentherm Incorporated Thermoelectric conditioning system and methods

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DE102008013450B4 (de) 2008-03-10 2023-08-03 Volkswagen Ag Fahrgastraumklimatisierung in einem Fahrzeug und Wärmeaustauscher-Einrichtung dafür
DE102008017965B4 (de) 2008-04-08 2011-06-01 W.E.T. Automotive Systems Ag Belüftungseinrichtung
DE202009017049U1 (de) 2008-12-21 2010-05-12 W.E.T. Automotive Systems Ag Belüftungseinrichtung
DE102012020516A1 (de) 2011-12-09 2013-06-13 W.E.T. Automotive Systems Ag Temperier-Einrichtung für eine elektrochemische Spannungsquelle
DE102011121980A1 (de) 2011-12-26 2013-06-27 W.E.T. Automotive Systems Ag Luftfördereinrichtung
JP6311377B2 (ja) * 2014-03-17 2018-04-18 株式会社デンソー シート空調システム
KR101506878B1 (ko) * 2014-05-09 2015-04-07 주식회사 루젠 차량 매트용 상부매트 및 그 상부매트 포함하는 차량 매트
EP3135532B1 (fr) 2014-10-07 2017-09-20 C.R.F. Società Consortile per Azioni Véhicule à moteur doté d'un siège fourni avec un système de climatisation
JP6737146B2 (ja) * 2016-11-22 2020-08-05 株式会社デンソー シート空調装置
CN107912914A (zh) * 2017-12-25 2018-04-17 重庆市沁元康虹服饰有限公司 一种新型水床垫
JP2019127256A (ja) * 2018-01-23 2019-08-01 株式会社デンソー シートヒータ
DE102020131095A1 (de) * 2020-11-24 2022-05-25 Novares Löhne GmbH Lüftungseinrichtung
DE102022124229A1 (de) 2022-09-21 2024-03-21 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugsitz für ein Kraftfahrzeug sowie Kraftfahrzeug

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US20100141753A1 (en) * 2000-05-03 2010-06-10 Aperio Technologies, Inc. Optimizing Virtual Slide Image Quality
US10005337B2 (en) 2004-12-20 2018-06-26 Gentherm Incorporated Heating and cooling systems for seating assemblies
US7708338B2 (en) * 2006-10-10 2010-05-04 Amerigon Incorporated Ventilation system for seat
US20080084095A1 (en) * 2006-10-10 2008-04-10 Amerigon Inc. Ventilation system for seat
US9857107B2 (en) 2006-10-12 2018-01-02 Gentherm Incorporated Thermoelectric device with internal sensor
US8065763B2 (en) 2006-10-13 2011-11-29 Amerigon Incorporated Air conditioned bed
US9603459B2 (en) 2006-10-13 2017-03-28 Genthem Incorporated Thermally conditioned bed assembly
US8732874B2 (en) 2006-10-13 2014-05-27 Gentherm Incorporated Heated and cooled bed assembly
US20080148481A1 (en) * 2006-10-13 2008-06-26 Amerigon Inc. Air conditioned bed
US20090042501A1 (en) * 2007-08-07 2009-02-12 Hung Stephen T Localized Air Distribution System
US7996936B2 (en) * 2007-09-10 2011-08-16 Amerigon Incorporated Operational schemes for climate controlled beds
US10405667B2 (en) 2007-09-10 2019-09-10 Gentherm Incorporated Climate controlled beds and methods of operating the same
US20110119826A1 (en) * 2007-09-10 2011-05-26 Amerigon Incorporated Operational schemes for climate controlled beds
US7877827B2 (en) 2007-09-10 2011-02-01 Amerigon Incorporated Operational control schemes for ventilated seat or bed assemblies
US8402579B2 (en) 2007-09-10 2013-03-26 Gentherm Incorporated Climate controlled beds and methods of operating the same
US20100212089A1 (en) * 2007-10-02 2010-08-26 Ryuji Kajiwara Air mattress controller
US9974394B2 (en) 2007-10-15 2018-05-22 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US9125497B2 (en) 2007-10-15 2015-09-08 Gentherm Incorporated Climate controlled bed assembly with intermediate layer
US10228166B2 (en) 2008-02-01 2019-03-12 Gentherm Incorporated Condensation and humidity sensors for thermoelectric devices
US9651279B2 (en) 2008-02-01 2017-05-16 Gentherm Incorporated Condensation and humidity sensors for thermoelectric devices
US10226134B2 (en) 2008-07-18 2019-03-12 Gentherm Incorporated Environmentally-conditioned bed
US8418286B2 (en) 2008-07-18 2013-04-16 Gentherm Incorporated Climate controlled bed assembly
US11297953B2 (en) 2008-07-18 2022-04-12 Sleep Number Corporation Environmentally-conditioned bed
US8782830B2 (en) 2008-07-18 2014-07-22 Gentherm Incorporated Environmentally conditioned bed assembly
US20100011502A1 (en) * 2008-07-18 2010-01-21 Amerigon Incorporated Climate controlled bed assembly
US8181290B2 (en) 2008-07-18 2012-05-22 Amerigon Incorporated Climate controlled bed assembly
US9622588B2 (en) 2008-07-18 2017-04-18 Gentherm Incorporated Environmentally-conditioned bed
US20110115635A1 (en) * 2009-05-06 2011-05-19 Dusko Petrovski Control schemes and features for climate-controlled beds
US8893329B2 (en) 2009-05-06 2014-11-25 Gentherm Incorporated Control schemes and features for climate-controlled beds
US20100301642A1 (en) * 2009-05-29 2010-12-02 Gm Global Technology Operations , Inc. Fluidic climate control system for a seat
US8136874B2 (en) * 2009-05-29 2012-03-20 GM Global Technology Operations LLC Fluidic climate control system for a seat
US8191187B2 (en) 2009-08-31 2012-06-05 Amerigon Incorporated Environmentally-conditioned topper member for beds
US11903888B2 (en) 2009-08-31 2024-02-20 Sleep Number Corporation Conditioner mat system for use with a bed assembly
US9814641B2 (en) 2009-08-31 2017-11-14 Genthrem Incorporated Climate-controlled topper member for beds
US8621687B2 (en) 2009-08-31 2014-01-07 Gentherm Incorporated Topper member for bed
US11020298B2 (en) 2009-08-31 2021-06-01 Sleep Number Corporation Climate-controlled topper member for beds
US11389356B2 (en) 2009-08-31 2022-07-19 Sleep Number Corporation Climate-controlled topper member for beds
US10675198B2 (en) 2009-08-31 2020-06-09 Gentherm Incorporated Climate-controlled topper member for beds
US8332975B2 (en) 2009-08-31 2012-12-18 Gentherm Incorporated Climate-controlled topper member for medical beds
US11642265B2 (en) 2009-08-31 2023-05-09 Sleep Number Corporation Climate-controlled topper member for beds
US11938071B2 (en) 2009-08-31 2024-03-26 Sleep Number Corporation Climate-controlled bed system
US11045371B2 (en) 2009-08-31 2021-06-29 Sleep Number Corporation Climate-controlled topper member for beds
US9685599B2 (en) 2011-10-07 2017-06-20 Gentherm Incorporated Method and system for controlling an operation of a thermoelectric device
US10208990B2 (en) 2011-10-07 2019-02-19 Gentherm Incorporated Thermoelectric device controls and methods
US9989267B2 (en) 2012-02-10 2018-06-05 Gentherm Incorporated Moisture abatement in heating operation of climate controlled systems
US10495322B2 (en) 2012-02-10 2019-12-03 Gentherm Incorporated Moisture abatement in heating operation of climate controlled systems
US20140265462A1 (en) * 2013-03-13 2014-09-18 Tom Fleming Portable Cooling Chamber Having Radiant Barrier and Cooling System
US10266031B2 (en) 2013-11-05 2019-04-23 Gentherm Incorporated Vehicle headliner assembly for zonal comfort
US9662962B2 (en) 2013-11-05 2017-05-30 Gentherm Incorporated Vehicle headliner assembly for zonal comfort
US20160325657A1 (en) * 2013-12-31 2016-11-10 Gentherm Automotive Systems (China) Ltd. Ventilation system
US11240882B2 (en) 2014-02-14 2022-02-01 Gentherm Incorporated Conductive convective climate controlled seat
US11240883B2 (en) 2014-02-14 2022-02-01 Gentherm Incorporated Conductive convective climate controlled seat
US10632879B2 (en) * 2014-08-08 2020-04-28 Faurecia Sièges d'Automobile Heating and/or cooling device for a motor vehicle seat
US20160039321A1 (en) * 2014-08-08 2016-02-11 Faurecia Sieges D'automobile Heating and/or cooling device for a motor vehicle seat
US11639816B2 (en) 2014-11-14 2023-05-02 Gentherm Incorporated Heating and cooling technologies including temperature regulating pad wrap and technologies with liquid system
US11033058B2 (en) 2014-11-14 2021-06-15 Gentherm Incorporated Heating and cooling technologies
US11857004B2 (en) 2014-11-14 2024-01-02 Gentherm Incorporated Heating and cooling technologies
US9919579B2 (en) * 2015-07-10 2018-03-20 Hyundai Motor Company Air conditioning system for driver's seat and method of controlling air conditioning of seat
US20170008369A1 (en) * 2015-07-10 2017-01-12 Hyundai Motor Company Air conditioning system for driver's seat and method of controlling air conditioning of seat
US20190023103A1 (en) * 2016-01-25 2019-01-24 Denso Corporation Heater device
US10913328B2 (en) * 2016-01-25 2021-02-09 Denso Corporation Heater device
US10744914B2 (en) * 2016-08-11 2020-08-18 Ford Global Technologies, Llc Ventilated seat cushion
US10618438B2 (en) 2016-10-21 2020-04-14 Faurecia Automotive Seating, Llc Vehicle seat with a thermal device
US11495204B2 (en) 2017-09-14 2022-11-08 Bayerische Motoren Werke Aktiengesellschaft Lining component and motor vehicle
US11124042B2 (en) * 2017-09-28 2021-09-21 Subaru Corporation Vehicle heating device
US20190092119A1 (en) * 2017-09-28 2019-03-28 Subaru Corporation Vehicle heating device
US11707909B2 (en) * 2017-10-27 2023-07-25 Gentherm Gmbh Surface temperature-controlling device
US20210162899A1 (en) * 2017-10-27 2021-06-03 Gentherm Gmbh Surface temperature-controlling device
US11104253B2 (en) * 2018-01-22 2021-08-31 Padmini Vna Mechatronics Pvt. Ltd. Flexible heat exchanger for thermal control of seating surfaces
US11433790B2 (en) * 2018-04-30 2022-09-06 Youngmin Hightech Co., Ltd. Air duct for ventilation seat and ventilation seat having same for vehicle
US11075331B2 (en) 2018-07-30 2021-07-27 Gentherm Incorporated Thermoelectric device having circuitry with structural rigidity
US11223004B2 (en) 2018-07-30 2022-01-11 Gentherm Incorporated Thermoelectric device having a polymeric coating
US10991869B2 (en) 2018-07-30 2021-04-27 Gentherm Incorporated Thermoelectric device having a plurality of sealing materials
US11993132B2 (en) 2018-11-30 2024-05-28 Gentherm Incorporated Thermoelectric conditioning system and methods
US10821862B2 (en) * 2018-12-06 2020-11-03 Ford Global Technologies, Llc Temperature control system for seating assembly
US20220024362A1 (en) * 2019-01-28 2022-01-27 Bayerische Motoren Werke Aktiengesellschaft Vehicle Seat Comprising a Temperature-Control System
US11845368B2 (en) * 2019-01-28 2023-12-19 Bayerische Motoren Werke Aktiengesellschaft Vehicle seat comprising a temperature-control system
CN113165554A (zh) * 2019-01-28 2021-07-23 宝马股份公司 具有调温装置的车辆座椅
US11152557B2 (en) 2019-02-20 2021-10-19 Gentherm Incorporated Thermoelectric module with integrated printed circuit board
WO2020202069A1 (fr) * 2019-04-02 2020-10-08 Padmini Vna Mechatronics Pvt. Ltd. Ventilation de surfaces d'assise dans un système d'échangeur de chaleur flexible
CN111152699A (zh) * 2020-01-08 2020-05-15 合肥赫恩斯堡智能科技有限公司 一种带加热功能的儿童安全座椅布套
US11571997B2 (en) * 2020-10-29 2023-02-07 Ford Global Technologies, Llc Seat component for a vehicle seat and vehicle seat
US20220134921A1 (en) * 2020-10-29 2022-05-05 Ford Global Technologies, Llc Seat component for a vehicle seat and vehicle seat
US11161436B1 (en) * 2020-11-16 2021-11-02 Altec Industries, Inc. Heated seat for mobile hydraulic equipment

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WO2004078517A3 (fr) 2004-12-02
WO2004078517B1 (fr) 2005-02-10
DE50300806D1 (de) 2005-08-25
KR20050106503A (ko) 2005-11-09
EP1454790A1 (fr) 2004-09-08
EP1454790B1 (fr) 2005-07-20
ES2243821T3 (es) 2005-12-01
WO2004078517A2 (fr) 2004-09-16
JP2006521127A (ja) 2006-09-21
ATE299810T1 (de) 2005-08-15

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