DE202008004876U1 - aerator - Google Patents

Abstract

Ventilation device (120), in particular for venting surfaces close to the person or touched by persons, having at least one air guiding device (122) which has at least one barrier layer (125), a cover layer (126) and an intermediate distributor layer (124), at least one barrier layer (125 ) is arranged on a side facing away from the user side of the distributor layer (124) and at least one cover layer (126) on a person-facing side of the distributor layer (124) is arranged, characterized in that at least one cover layer (126) at least partially permeable to air and at least is partially vapor-permeable, and that the barrier layer (125) is at least partially designed to inhibit the passage of air and / or vapor.

Description

Background of the invention

One The subject of the present invention is a ventilation device according to the preamble of claim 1.

aerators for seats in which by means of a fan air through a seat cover is blown, are known.

It is desirable, improved or alternative technical To develop solutions, especially in terms of their Production costs, their ability to produce a pleasant climates and / or their energy consumption are advantageous.

Subject of the invention

In front This background is a technical concept with the characteristics proposed by claim 1. Further advantageous embodiments are the further claims and the description below removable.

Out a variety of possible solutions, such as B. moisture-absorbing materials, continuous operation of a Ventilators, replacement of conductive layers by fans directly below the surface of the cover etc., here became one Solution found in the surprisingly the Distinction of air and vapor permeability in the materials used to power even when turned off Ventilator to achieve a significant climate improvement.

The Ventilation device according to the invention allows efficient ventilation during operation of the fan. At the same time it prevents that when switched off Fan humidity on a surface to be ventilated and / or accumulates on the skin of a user.

characters

in the Details of the invention will be explained below. These embodiments are intended to understand the invention do. However, they have only exemplary character. Of course can be described within the scope of the invention, one or more Also omit, modify or supplement features. Also may be the features of different embodiments of course be combined with each other. critical is that the concept of the invention is essentially implemented. If a feature is at least partially fulfilled, then This includes that feature completely is met or substantially completely fulfilled is. "Essentially" means in particular that the implementation achieves the desired benefits allowed to a noticeable extent. This may in particular mean that a corresponding characteristic of at least 50%, 90%, 95% or 99% is satisfied.

following reference is made to:

1 Vehicle with ventilation device in partial longitudinal section

2 First embodiment of a ventilation device in an exploded view

3 Second embodiment of a ventilation device in an exploded view

Description of the invention

1 shows a vehicle 1000 , It may be z. As an aircraft, a rail vehicle, a ship or act as here to a motor vehicle.

The vehicle 1000 has at least one interior furnishing item 1100 on. These are understood in doubt all components with which a user of the passenger compartment can come into contact, such. B. a steering device for vehicles 1120 , a dashboard 1130 , an armrest 1140 , a door panel 1150 , a seat pad 1160 , a thermal blanket 1170 , a vehicle sky 1180 , a cushion 400 , a reference 500 or like a seat here 1110 ,

The furniture object 1100 preferably has at least one pad 400 and / or at least one reference 500 on.

The interior decoration object 1100 preferably has at least one air conditioner 100 on. It serves z. B. the temperature / air conditioning of user-contacted areas in the passenger compartment of a vehicle. It has at least one tempering device 110 , at least one ventilation device 120 and / or at least one moisture control device 130 on. Tempering is understood to mean any device that can be used for targeted change in the temperature in their environment, eg. B. all devices with at least one electrical heating resistor, a textile surface heating element, a heat pump, a Peltier element and / or an air movement device, for. B. a fan. Under ventilation device is understood to mean any device that can be used to selectively change the air composition or the air currents in a certain area or space area for air exchange, such. As on-board air conditioning, at least partially air-permeable spacing media, spacer knitted fabric and / or Klimati sierungseinleger. Moisture regulation device is understood to mean a device which serves to regulate the humidity in its environment, in particular tempering devices mentioned or moisture absorbers such as activated carbon fibers or polymeric superabsorbents.

A ventilation device according to 2 and 3 has one or more air inlets 121 , one or more air ducts 122 and one or more air outlets 123 . 123 ' on.

At least one air guide device 122 preferably has one or more distribution layers 124 , one or more barrier layers 125 and one or more cover layers 126 . 126 ' on.

Under a barrier 125 In particular, a layer is understood which inhibits or prevents passage of air, water and / or water vapor, at least in a partial region. These are understood in particular Schich th with a water vapor transmission resistance of more than 35 (m ² Pa) / W.

As a measure of the diffusion can also be used the s _D value, the product of material-dependent diffusion resistance coefficient μ and layer thickness d. In particular, according to DIN 4108-3 Layers as vapor-permeable, if their s _D value ≤ 0.5 m, as diffusion-tight at s _D values ≥ 1,500 m and as diffusion-inhibiting if their s _D value is between 0.5 m and 1,500 m. At least one barrier layer 125 preferably has at least one subregion in which its vapor permeability or its s _D value is greater than 0.5 m, better 10 m, better 1000 m, better 1500 m and more. The s _D value can also be variable and, for example, from that at the barrier layer 125 Depend on existing moisture. It is advantageous if the s _D value then has a higher s _D value at higher humidity.

The barrier layer 125 is preferably little or no air permeable. This is understood in particular to mean an air permeability of less than 100 l / (dm ² × min), better 10 l / (dm ² × min), even better 5 l / (dm ² × min). These values refer to a test pressure of 100 Pa.

One or more barrier layers 125 are preferably at one or more distribution layers 124 arranged that they are the respective distribution layer 124 at least partially shielded from their environment. Preferably, it covers the entire surface of the distributor layer facing away from a passenger 124 and protrudes at one or more edges in addition to a piece beyond. This avoids air and pressure losses. At least one barrier layer 125 is at least partially made of film or a layer of plastic, polymer or other poorly permeable material, such. As metal foils formed. It can also by a foamed, preferably closed-cellular material, such. As the foam of a seat cushion, be formed. The barrier layer 125 is preferably designed as a single layer of a homogeneous material.

The barrier layer 125 can have one or more air passage openings 127 have, for. B. to connect a fan to it. The air passage openings 127 can be used as air inlets 121 in the air guide device 122 serve when a fan connected there should blow air to the user. They can also be used as air outlets 123 Serve when air is sucked by a fan by the user.

One or more distribution layers 124 preferably have a spacing device which comprises one or more cover layers 126 at least in sections of at least one barrier layer 125 spaced. Suitable for this purpose are, for example, spacer knitted fabrics and / or juxtaposed spirals with plastic and / or glass fiber components.

Under a cover layer 126 In particular, a layer is understood that covers the ventilation device at least partially towards the user. In particular, this is understood to mean a layer which, at least in a subarea, is poor or not permeable, at least for air. The values can be defined as for the barrier layer.

One or more cover layers 126 are preferably at one or more distribution layers 124 arranged that they are the distributor layer 124 at least partially shielded from their environment. Preferably, it covers the entire passenger facing surface of the distributor layer 124 and stands out in addition a bit beyond. This avoids air and pressure losses.

At least one cover layer 126 is preferably at least partially made of film or a layer of plastic-polymer or other poor air or vapor-permeable material, such as. As metal foils formed. It can also by a foamed, closed cell material, such. As the foam of a seat cushion, be formed. Alternatively or additionally, the cover layer may be at least partially formed of a material that is at least partially good for steam, water and / or air consistently. The cover layer 126 may be embodied as a single layer of a homogeneous material, preferably has However, they have two different layers with different permeability to air and / or water or steam.

The cover layer 126 can have one or more air passage openings 127 ' have, for example, to connect a fan to it. The air passage openings 127 ' can be used as air inlets 121 in the air guide device 122 serve when a fan connected there should blow air to the user. They can also be used as air outlets 123 Serve when air is sucked by a fan by the user.

At least one cover layer 126 allows passage of water vapor and / or water at least partially and / or in sections. At least one cover layer 126 preferably has at least portions in which the air permeability is greater than 10 l / (dm ² × min), better 50 l / (dm ² × min), better at least 100 l / (dm ² × min). The cover layer 126 moreover, preferably has at least one subregion in which its vapor permeability or its s _D value is less than 1,500 m, better less than 10 m, better 1 m, better 0.5 m. This is understood in particular to mean a water vapor transmission resistance of less than 35 (m ² Pa) / W. Preferably, at least one cover layer 126 at least in sections, preferably over the entire surface, permeable to vapor. The breathability or the water vapor transmission resistance R _ef is preferably ≦ 35 (m ² Pa) / W, preferably ≦ 20 (m ² Pa) / W, preferably ≦ 5 (m ² Pa) / W, preferably ≦ 3 (m ² Pa) / W.

The s _D value can also be variable and, for example, from that of the top layer 126 Depend on existing moisture. It is advantageous if the s _D value then has a higher s _D value at higher humidity.

The air passage openings 127 ' can like in 2 window-like recesses in the cover layer 126 be. You can, however, also like in 3 be formed by micro perforations and / or by stitches or gaps between the threads or fibers of a textile.

Suitable z. As textiles with a basis weight of 133 g / m ² or less. Such a textile is preferably a fleece and / or preferably a textile with several fiber types, for example polyethylene (PET) and polyamide (PA6). Preferably, the proportion of PET fibers is greater than that of the PA6 fibers. Preferably, the proportion of PET fibers is at least 60%, better 70% and more. Preferably, the proportion of PAG fibers is between 15 and 45%. Preferably, the cover layer is 126 at least partially formed of a material that absorbs moisture only slightly or not at all.

Preferably, the air guide device 122 designed as a modular system, wherein at least one barrier layer 125 , a distribution layer 124 and a cover layer 126 form a coherent assembly. This assembly may also be combined with an electric heating element, preferably an electric surface heating element, a fan and / or a fan heater to a climate-Einleger module. Preferably, the air guiding device has only two or three layers, which in turn are formed from a homogeneous, single-layer material.

Preferably, the cover layer 126 and the barrier layer 125 at least partially over one or more edges of the manifold layer 124 over, which are connected there, for example by gluing, welding or sewing. It can be provided that this connection does not cover the entire edge of the air guiding device 122 includes, but air passage openings 127 provides air laterally into the manifold layer 124 to be able to blow in and to aspirate from it. It can also be provided that in this area a snorkel 129 as in 3 is arranged to connect the air guide device 122 to allow for a location spaced from a surface to be ventilated. This can serve, for example, the intake of cold air from the foot area of the seat.

It is expedient if the interior of the air guide device 122 even when the fan is switched off with air surrounding the surface to be ventilated or the seat 1110 communicates. This allows moisture to pass through the topcoat 126 in the interior of the air guide device 122 diffuses, at spaced from a surface to be ventilated air passage openings 127 withdraw.

100

Air-conditioners facility

110

tempering

120

aerator

121

air intakes

122

Air guide device

123 123 '

air outlet

124

distribution layer

125

junction

126 126 '

topcoat

127

Air passage opening

129

snorkel

130

Moisture regulating device

400

pad

500

reference

1000

vehicle

1110

Seat

1100

Interior furnishing

1120

steering device for vehicles

1130

dashboard

1140

armrest

1150

door trim

1160

seat cushion

1170

thermal blanket

1180

headlining

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited non-patent literature

• - DIN 4108-3 [0019]

Claims (7)

Ventilation device ( 120 ) in particular for ventilating surfaces close to the person or touched by persons with at least one air guiding device ( 122 ), which at least one barrier layer ( 125 ), a topcoat ( 126 ) and an intermediate distribution layer ( 124 ), wherein at least one barrier layer ( 125 ) on a side of the distributor layer facing away from the user ( 124 ) and at least one cover layer ( 126 ) on a person-facing side of the distribution layer ( 124 ), characterized in that at least one cover layer ( 126 ) is at least partially permeable to air and at least partially vapor-permeable, and that the barrier layer ( 125 ) is at least partially executed a passage of air and / or vapor inhibiting. Ventilation device ( 120 ) according to claim 1, characterized in that the vapor-permeable region of the cover layer ( 126 ) is at least 10% of its base area and / or the surface to be ventilated, preferably at least 30%, better 50%, better 70%, better 90%. Ventilation device ( 120 ) according to one of the preceding claims, characterized in that the cover layer ( 126 ) has at least one region in which the air permeability is less than 50 l / (dm ² × min), better 10 l / (dm ² × min), and the vapor permeability has an s _D value smaller than 1,500 m, better smaller 10 m, better less than 0.5 m. Ventilation device ( 120 ) according to one of the preceding claims, characterized in that the total area of the vapor-permeable areas of the cover layer ( 126 ) is greater than the total area of the air-permeable areas of the cover layer ( 126 ), preferably at least 10% larger, better 50%, better 100%, better 300% and more. Ventilation device ( 120 ) according to one of the preceding claims, characterized in that the cover layer ( 126 ) has a nonwoven, preferably with polyester microfibers and / or polyamide fibers, preferably in a mixing ratio of 10% to 90% to 60% to 10%. Seat ( 1110 ), characterized in that it is provided with at least one ventilation device ( 120 ) is provided according to one of the preceding claims. Vehicle ( 1000 ), characterized in that it is provided with at least one ventilation device ( 120 ) and / or at least one seat ( 1110 ) is provided according to one of the preceding claims.