DE102018201932A1 - Air-conditioned upholstery - Google Patents

Abstract

An upholstery arrangement (1, 1 ') for a vehicle seat (2) comprises a cushion (10) and a blowing fan (11) which is adapted to move air from an environment (U) of the cushion (1) into an interior space (I ) of the pad (10). In this case, a sucking fan (12) is provided, which is adapted to suck air from the interior (I) into the environment (U), wherein the blowing fan (11) and the sucking fan (12) in the interior (I) in fluid communication with each other. In this way, the air conditioning of a pad for a vehicle seat is improved.

Description

The invention relates to a cushion arrangement for a vehicle seat according to the preamble of claim 1 and a vehicle seat.

Such a cushion arrangement comprises a cushion and at least one blowing fan, which is designed and configured to blow air from an environment of the cushion into an interior space defined by the cushion, that is to say into the interior of the cushion.

Due to the ventilation, the cushion is air-conditioned. In this way, in particular, a region on an outer surface of the pad on which a seat occupant is supported, be air-conditioned, which increases the comfort of a vehicle seat with such a cushion arrangement. In addition, by air conditioning of the vehicle seat in many situations can be dispensed with an air conditioning of an entire interior of a vehicle with the vehicle seat, which energy can be saved.

The DE 20 2007 008 310 U1 relates to a cushion arrangement described above. In this case, a fan is provided, which is attached to a molded in a seat pan or a backrest of a vehicle seat fan mount and blows air into a cushion of the vehicle seat.

From the WO 2009/024226 A2 a vehicle seat is known in which one or more fans are arranged on upholstery of a vehicle seat, which can be operated either in a blowing pressure operation or in a sucking suction operation. It should be cooled rapidly by the suction operation heated by the sun pad surface, while the printing operation should provide a permanent air conditioning. For this purpose, the fans can be switched over from the suction mode to the printing mode. However, the reversibly operable fans are expensive to produce and their control is comparatively complex.

The EP 2 607 155 A1 describes an airflow control system for a vehicle seat that is equipped with a plurality of air outlet openings and air inlet openings. Air flows from the air outlet openings to the air inlet openings flow around a seat occupant. However, the airflow control system has little influence on a microclimate that is established between a seat occupant and a padded surface of the vehicle seat.

The object of the present invention is to improve the air conditioning of a pad for a vehicle seat.

This object is achieved by an article having the features of claim 1.

Thereafter, in addition to the at least one blowing fan, the pad assembly further includes at least one sucking fan configured and configured to suck air from the interior of the pad into the environment, wherein the blowing fan and the sucking fan are in fluid communication within the interior of the pad standing together.

The sucking fan allows a particularly good exchange of air in a region between a seat occupant who is supported on the pad and a surface of the pad. For example, moisture and heat in this area can be dissipated particularly well with the help of the sucking fan. In particular, over a longer period allows the sucking fan so a particularly effective air conditioning, which allows a high level of comfort. By blowing in ambient air, the blowing fan allows a particularly rapid air conditioning effect, so that comfortable air conditioning can be achieved particularly quickly. The combination of a sucking and a blowing fan thus enables a particularly good air conditioning, in particular a micro-climate which arises between a seat user and a surface of the pad. Further, the blowing fan and the sucking fan mutually support each other through their fluid communication through the interior of the pad, so that both fans can be made smaller compared to a single fan system, and in particular so that they do not (significantly) increase energy consumption , The smaller fans have a smaller footprint and can also be arranged more flexibly.

In one embodiment, the blowing fan and the sucking fan are in fluid communication with each other via an air guide arrangement arranged within the interior of the pad. As a result, a particularly targeted ventilation of the pad is possible. Operation of the fans provides convection between the fans. The convection takes place through the interior of the cushion.

In a further development, the air guide arrangement comprises an air guiding layer. The air guiding layer can be formed flat. For example, the air guide layer is formed as a mat. Through an air guiding layer, injected air can be distributed particularly well over a surface and warm and / or moist air can be sucked particularly well over the surface in order to further improve the air conditioning.

For example, the air guiding layer may extend along at least a portion of a cover of the pad. In this way, the microclimate in the area of the cover can be influenced particularly effectively. The cover provides, for example, an outer surface of the pad.

Optionally, the air guiding layer is designed in the form of a spacer knit, in particular in the form of a mat. This allows both an effective air circulation and a comfortable feel of the upholstery.

The air guide arrangement may have at least one air guide in the form of a hollow body, in particular in the form of a tube or hose. This allows a particularly effective air conditioning. The hollow body can be arranged in the interior of the pad. For example, the hollow body provides fluid communication between one of the fans and the air guide sizing.

Optionally, the pad assembly comprises a Peltier element for heating or cooling. Peltier elements are particularly low maintenance and space saving.

The Peltier element is e.g. disposed adjacent to the blowing fan to selectively cool or heat the air to be blown from the blowing fan into the interior of the cushion. In this way, the ambient air can be heated or cooled to provide a particularly comfortable air conditioning. The cushion arrangement can thus cool on the one hand and on the other hand serve as a seat heater. The cushion arrangement can act as climate control. Thus, in many situations it is sufficient to use only the air conditioning of the upholstery arrangement, without activating often much more energy consuming vehicle interior air conditioning. This plays a major role, especially in electric vehicles, since there is not ready for heating the waste heat of an internal combustion engine.

In one embodiment, the cushion arrangement comprises a control unit for controlling the blowing fan and the sucking fan. The control unit may be connected to a temperature sensor (e.g., electrically or wirelessly) to detect temperature readings by the temperature sensor. The control unit may be configured to control the blowing fan and the sucking fan in dependence on the detected temperature measured values. As a result, a particularly precise adjustment of a desired air conditioning is possible. Optionally, the cushioning arrangement comprises an input element for selecting a power level of the fans and / or a setpoint for a temperature. Together with the temperature sensor, the control device can regulate the temperature of the air conditioning.

In one embodiment, the blowing fan and / or the sucking fan are at least partially surrounded by a foam, in particular a foam core of the pad. The fans are embedded, for example, in the foam (the foam core) of the pad. As a result, a space-saving arrangement with short Luftleitwegen is possible.

The cushioning arrangement may comprise a cover and a sealing layer, in particular on opposite sides of the cushion. At least part of the interior of the pad may be formed between the cover and the sealing layer. The cover and the sealing layer can define the interior of the pad. The cover is optionally more permeable to air than the sealing layer, in particular, the sealing layer may be airtight. The sealing layer is in the intended use of the padding arrangement e.g. turned away from a seat occupant. The sealing layer may assist in targeted air conditioning because the sucking fan sucks little or no air through the sealing layer.

The cover according to a development comprises a perforation. As a result, a particularly effective air conditioning of the micro-climate is possible. The perforation is e.g. formed by a plurality of holes. The reference is e.g. made of leather or imitation leather.

In one embodiment, the sealing layer comprises a nonwoven or consists of a nonwoven. The fleece can be sufficiently airtight (optionally completely airtight) and at the same time have a good feel.

In one aspect, a vehicle seat is provided that includes at least one cushion assembly according to any configuration described herein. The cushion arrangement can in particular provide the padding of a backrest and / or a seat part. This enables a vehicle seat with particularly good air conditioning.

• 1 eine Schnittdarstellung einer Polsteranordnung mit einem Polster und mit einem blasenden Lüfter und einem saugenden Lüfter, die in das Polster integriert sind;
• 2 eine Schnittdarstellung der Polsteranordnung gemäß 1 mit einem zusätzlichen Peltier-Element; und
• 3 eine perspektivische Ansicht eines Fahrzeugsitzes mit der Polsteranordnung gemäß 1 oder gemäß 2.

The idea underlying the invention will be explained in more detail with reference to the embodiments illustrated in the figures. Show it:

• 1 a sectional view of a cushion assembly with a cushion and with a blowing fan and a sucking fan, which are integrated into the pad;
• 2 a sectional view of the cushion assembly according to 1 with an additional Peltier element; and
• 3 a perspective view of a vehicle seat with the cushion assembly according to 1 or according to 2 ,

1 shows a cushion arrangement 1 for a vehicle seat, eg for a driver or passenger seat of a motor vehicle. The cushion arrangement 1 includes a cushion 10 , The upholstery 10 includes a foam core 102 from a foam material. The foam core 102 is at least on one side by a reference 100 covered. The reference 100 represents a surface O ready, which is designed to be a seat occupant on the surface O can support. For example, the upholstery 10 shaped so that the surface O provides a seat or backrest surface.

On one of the surface O of the reference 102 opposite side of the pad 10 is a sealing layer in the form of a fleece 103 arranged. The reference 102 and the fleece 103 define an interior space between them I of the upholstery 10 , The foam core 102 is in this interior I arranged. Is that upholstery 10 designed in the form of a backrest, then the fleece 103 be arranged on the back of the backrest or be aligned towards the back of the backrest.

The cushion arrangement 1 also includes an (air blowing) blowing fan 11 and a (air-sucking) sucking fan 12 , The blowing fan 11 is designed and equipped to air from an environment U of the upholstery 10 in the upholstery 10 into it, into the interior I of the upholstery 10 to blow. The sucking fan 12 is designed and equipped to air out of the upholstery 10 out in the area U to suck. The fans can be activated at the same time, so that at the same time air in the pad 10 blown (by the blowing fan 11 ) and air from the upholstery 10 is sucked (by the sucking fan 12 ). The blowing fan 11 can in the interior I opposite the environment U build up a positive pressure while the sucking fan 12 in the interior I opposite the environment U can build a vacuum. Optional are the blowing fan 11 and the sucking fan 12 identical, but installed opposite each other (the interior I each facing opposite sides).

The blowing fan 11 and the sucking fan 12 stand over the interior I of the upholstery 10 in fluid communication with each other. From the blowing fan 11 in the interior I injected air can be inside the interior I to the sucking fan 12 flow and sucking fan 12 in the nearby areas U be sucked. By activating the fan 11 . 12 will convection between the fans 11 . 12 (in the interior I of the upholstery 10 ) generated. This can cause the two fans 11 . 12 Support each other, so compared to the fan of a cushion arrangement with only one fan much smaller fan 11 . 12 can be used, which can also have a comparable energy consumption in the sum.

In addition, it is possible by the arrangement with a blowing and a sucking fan, both heat and moisture from the area of the cover 100 effectively with the sucking fan 12 to suck off, as well as to blow in fresh air by means of the blowing fan. This is a particularly effective and comfortable air conditioning of the upholstery 10 allows. The blowing fan 11 enables a particularly fast setting of a comfortable climate, in particular a micro-climate, between a seat occupant and the reference 100 established. The sucking fan 12 allows a particularly effective air exchange in the area of the cover 100 and a long-lasting air conditioning, especially the micro-climate.

In the example according to 1 is the reference 100 made of leather. For the best possible exchange of air, heat and moisture, the reference 100 a perforation 101 on, which can be particularly well acted on the microclimate. Alternatively, the cover is made of a synthetic leather or a fabric, in particular an air-permeable fabric.

To ensure the most efficient ventilation by means of the fan 11 . 12 To achieve the fleece 103 be formed almost impermeable to air or substantially air-impermeable. As a result, the suction of air from the region of the reference 100 through the sucking fan 12 improved.

To ensure the best possible air flow and thus effective air conditioning of the air-conditioned upholstery 10 to reach, comprises the padding arrangement 1 an air ducting arrangement 13 , The air duct arrangement 13 provides a fluid connection between the blowing fan 11 and the sucking fan 12 ago. The air duct arrangement 13 comprises an air-guiding sizing in the form of a spacer knit 130 , The spacer fabric 130 is traversed by air. The spacer fabric 130 is flat and extends along the reference 100 , The spacer fabric 130 is between the reference 100 and the foam core 102 arranged. The spacer fabric 130 allows a particularly good removal of the reference 100 absorbed heat and humidity, so that a comfortable microclimate can be built up.

The spacer fabric 130 is with the blowing fan 11 via an air duct 131 connected. The air duct 131 provides a fluid connection between the blowing fan 11 and the spacer knit 130 ago. The air duct 131 is formed for example in the form of a tube or hose. The air duct 131 extends in the example shown by the foam core 102 therethrough. The spacer fabric 130 is with the sucking fan over another air duct 132 connected. The further air flow 132 provides fluid communication between the spacer fabric 130 and the sucking fan 12 ago. The further air flow 132 is formed for example in the form of a tube or hose. The further air flow 132 extends in the example shown by the foam core 102 therethrough.

Be the fans 11 . 12 activated, the blowing fan blows 11 an airflow L1 with air from the environment U in the upholstery 10 on. The air is from the blowing fan 11 through the air duct 131 to the spacer knitted fabric 130 blown (air flow L2 ) and flows through the spacer fabric 130 (Airflow L3 ). Here, the air, the spacer knitted fabric 130 and the reference 100 cool. The sucking fan 12 sucks air from the spacer fabric 130 off (airflow L3 ) and thus supports the blowing fan 11 , In addition, the sucking fan sucks 12 Air through the perforation 101 through (airflow L4 ). Thus, air can be at the reference 100 seated occupant passing through the perforation 101 be sucked, whereby a particularly comfortable air conditioning is possible. The through the perforation 101 sucked in air mixes in the spacer fabric with the blowing fan 11 blown air. The air then flows through the further air flow 132 to the sucking fan 12 (Airflow L5 ) and through this out of the pad 10 out in the area U (Airflow L6 ).

The fans 11 . 12 are either with the same power or with different services operable. Depending on whether the blowing fan 11 and the sucking fan 12 be operated with the same service or different services; and at different performances, whether the blowing or the sucking fan 11 . 12 is operated with a higher power, more air flows out of the perforation 101 out or through the perforation 101 into it.

For a continuous flow of air L1 . L6 from the surroundings U to the blowing fan 11 and the sucking fan 12 in the nearby areas U is on each of the fans 11 . 12 (between the respective fan 11 . 12 and the environment U ) an air-permeable layer 14 arranged, in the present case in the form of a spacer knit.

As in 1 to recognize, are the fans 11 . 12 in the foam core 102 embedded. This allows a particularly quiet operation of the fan 11 . 12 as well as a space-saving arrangement. In the cross-sectional view according to 1 are the fans 11 . 12 on three of four sides from the foam core 102 surround.

2 shows a cushion arrangement 1' according to the padding order 1 according to 1 with the difference that according to 2 in addition a Peltier element 15 is provided. The Peltier element 15 is on the blowing fan 11 arranged, concrete in the blowing fan 11 blown airflow L2 , The Peltier element 15 includes heat exchange means, the injected air flow L2 be overflowed to the airflow L2 to heat or cool, for example in the form of an inner wall, which is provided for example with ribs. Optionally, the Peltier element comprises 15 not shown here further heat exchange means which heat exchange with air in the environment U allow. The Peltier element 15 Can the injected airflow L2 either cool or heat. Cools the Peltier element 15 the airflow L2 , The cooled, injected air is a particularly effective cooling of the pad 10 allows. Warms the Peltier element 15 the airflow L2 , Thus, the function of a seat heater can be provided. On a separate seat heating can be waived.

In 2 is also a comfort mat 19 represented at the other padding arrangement 1' is attached (the cushion arrangement 1 according to 1 is also optional on a comfort mat 19 appropriate). The comfort mat 19 includes a lumbar support and / or a massage device (eg, a pressure point massage device). The cushion arrangement 1' with the comfort mat 19 can represent, for example, a preassembled, especially pretestable assembly. Thus, a vehicle seat in a simple manner by attaching the cushion assembly 1' with the comfort mat 19 be equipped with several functions.

A connection to an electrical system of a vehicle seat or a vehicle takes place, for example, via a common interface for the cushion arrangement 1 . 1' including the lumbar support and / or the massage device. Optionally, the cushion arrangement comprises 1 . 1' according to 1 or 2 a frame or a shell, eg a backrest frame, a seat frame or a seat shell.

3 shows a vehicle seat 2 with a seat part 20 and a backrest 21 , The backrest 21 in the present case comprises a cushion arrangement 1 . 1' according to 1 or 2 , The reference 100 of the upholstery 10 in the present case forms a backrest surface to which a seat occupant can lean when in the vehicle seat 1 sitting.

According to 3 includes the cushion assembly 1 , 1 'furthermore a control unit 16 that with a temperature sensor 17 is operatively connected, for example, is electrically connected to it. the temperature sensor 17 is formed, for example, in the form of a temperature-dependent resistor (eg as a PTC element). The temperature sensor 17 is for example on the cover 100 arranged. The control unit 16 detected by means of the temperature sensor 17 Temperature readings. The control unit controls in dependence on the detected temperature measured values 16 the blowing fan 11 and the sucking fan 12 , For example, the control unit activates 16 the fans 11 . 12 as soon as a temperature measured value exceeds or falls below a predefined or specifiable threshold value. The threshold is optional via an input element 18 can be entered by a seat user. Optional is via the input device 18 a power level adjustable and / or setpoint for a temperature adjustable. The control unit 16 is this with the blowing fan 11 and the sucking fan 12 operatively connected, eg via (electrical) control and / or supply lines. The cushion arrangement 1 can thus provide automatic climate control.

Includes the vehicle seat 2 the cushion arrangement 1' with Peltier element 15 (see in particular 2 ), the control unit 16 also with the Peltier element 15 be operatively connected, for example via (electrical) control and / or supply lines. Depending on a temperature reading and / or one in the input element 18 entered setting controls the control unit 16 the Peltier element 15 , The control unit 16 is optionally adapted to the temperature in the region of the reference 100 to regulate to a predetermined or predetermined target temperature.

The input element 18 may be designed to control commands for a, especially on the comfort mat 19 (see in particular 2 ), lumbar support and / or massage device and to the control device 16 to provide for controlling the lumbar support and / or massage device.

Optionally, the cushion arrangement comprises 1 . 1' more than a blowing fan 11 and / or more than one sucking fan 12 ,

LIST OF REFERENCE NUMBERS

1, 1 '

pad assembly

10

pad

100

reference

101

perforation

102

foam core

103

Sealing layer (fleece)

11

blowing fan

12

sucking fan

13

Air guide arrangement

130

Air guiding layer (spacer knitted fabric)

131

air duct

132

air duct

14

air-permeable layer (spacer knitted fabric)

15

Peltier element

16

control unit

17

temperature sensor

18

input element

19

comfort mat

2

vehicle seat

20

seat part

21

backrest

I

inner space

L1-L6

airflow

O

surface

U

Surroundings

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202007008310 U1 [0004]
• WO 2009/024226 A2 [0005]
• EP 2607155 A1 [0006]

Claims (14)

Upholstery arrangement (1, 1 ') for a vehicle seat (2), comprising a pad (10) and a blowing fan (11), which is adapted to air from an environment (U) of the pad (1) in an interior space (I ) of the pad (10), characterized by a sucking fan (12) adapted to suck air from the interior (I) into the environment (U), the blowing fan (11) and the sucking fan (12) in the interior (I) in fluid communication with each other. Padding arrangement (1, 1 ') after Claim 1 , characterized in that the blowing fan (11) with the sucking fan (12) via a in the interior (I) of the pad (1) arranged in air duct assembly (13) is in fluid communication. Padding arrangement (1, 1 ') after Claim 2 , characterized in that the air guiding arrangement (13) comprises an air guiding layer (130). Padding arrangement (1, 1 ') after Claim 3 characterized in that the air guiding layer (130) extends along at least a portion of an outer cover (100) of the pad (10). Padding arrangement (1, 1 ') after Claim 3 or 4 , characterized in that the air guiding layer (130) is formed in the form of a spacer knit. Upholstery arrangement (1, 1 ') according to one of Claims 2 to 5 , characterized in that the air guide arrangement (13) has at least one air guide (131, 132) in the form of a hollow body, in particular in the form of a tube or hose. Upholstery arrangement (1, 1 ') according to one of the preceding claims, characterized by a Peltier element (15). Padding arrangement (1, 1 ') after Claim 7 characterized in that the Peltier element (15) is disposed adjacent to the blowing fan (11) for cooling or heating air blown by the blowing fan (11) into the interior space (I) of the cushion (10). Upholstery arrangement (1, 1 ') according to one of the preceding claims, characterized by a control unit (16) which is connected to a temperature sensor (17) for detecting temperature measured values, wherein the control unit (16) is designed to control the blowing fan (11 ) and the sucking fan (12) in response to the detected temperature readings. Upholstery arrangement (1, 1 ') according to one of the preceding claims, characterized in that the blowing fan (11) and the sucking fan (12) are at least partially surrounded by a foam core (102) of the pad (10). Upholstery arrangement (1, 1 ') according to one of the preceding claims, characterized by a cover (100) and a sealing layer (103), between which at least a part of the inner space (I) of the pad (10) is formed, wherein the cover (100 ) is more permeable to air than the sealing layer (103). Padding arrangement (1, 1 ') after Claim 11 , characterized in that the cover (100) has a perforation (101). Padding arrangement (1, 1 ') after Claim 11 or 12 , characterized in that the sealing layer (103) comprises a nonwoven or consists of a nonwoven. Vehicle seat (2), characterized by at least one cushion arrangement (1, 1 ') according to one of the preceding claims.

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