Device for pneumatically adjusting a seat in a vehicle

A vehicle and pneumatic adjustment technology, applied in the field of seat devices, can solve problems such as reducing the speed of the actuator, and achieve the effects of reduced size, compact structure, and low actuation noise

Active Publication Date: 2020-12-22
CONTI TEMIC MICROELECTRONIC GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SMA valves have the disadvantage that, due to the necessary cooling time, the actuator speed is reduced and, moreover, a relatively large installation space is required to achieve the required valve movement

Method used

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  • Device for pneumatically adjusting a seat in a vehicle
  • Device for pneumatically adjusting a seat in a vehicle
  • Device for pneumatically adjusting a seat in a vehicle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] Different variants of valves made of electroactive polymers, which are installed in devices for adjusting motor vehicle seats, will be described below. These valves serve here to allow the supply of compressed air into the corresponding cushions in the vehicle seat and to ensure the discharge of compressed air from these environments. In this way, the vehicle seat can be adapted to the geometry of the occupant sitting thereon.

[0040] figure 1 A cross-sectional view of a first embodiment of a valve is shown, wherein the valve is installed in a seat adjustment device according to the invention. This valve is indicated by reference 1 and is located between a compressed air supply 2 and a cushion 3 integrated in the motor vehicle seat. A compressed air supply 2 (preferably comprising a compressor) and a pad 3 are indicated only schematically. In the variant described here, the seat adjustment device according to the invention comprises a plurality of pads and correspon...

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PUM

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Abstract

The invention relates to a device for the pneumatic adjustment of a seat in a means of transport, in particular in a motor vehicle, comprising one or more cushions (3) which can be filled with air and which are connected via one or more valves (1) to a compressed-air supply (2), and a control device for the actuation of the one or more valves (1) for the purposes of changing the filling state of the one or more cushions (3). The device according to the invention is characterized in that a respective valve (1) of at least some of the valves (1) comprises one or more actuation elements (4) composed of electroactive polymer, to which an electrical voltage can be applied. By application of the electrical voltage, a respective actuation element (4) is deformed, and in this way, one or more passage openings (6, 6′) via which an exchange of compressed air with at least one cushion (3) takes place is or are opened up or shut off.

Description

technical field [0001] The invention relates to a device for pneumatically adjusting a seat in a vehicle. Background technique [0002] In vehicles such as, for example, motor vehicles or also rail vehicles or aircraft, devices for pneumatic seat adjustment are increasingly used. In such devices, inflatable resilient pads or bladders are used to contour the seat or for massage purposes. These means allow the seat to be individually adapted to the occupant. [0003] The pads in the device for pneumatic seat adjustment are filled and emptied by actuating the appropriate valves. In particular, piezo valves are used here, which, despite their short adjustment strokes, require high pressures for their actuation and are expensive to produce. [0004] Furthermore, solenoid valves used in devices for pneumatic seat adjustment are known. While occupying the same installation space as a piezo valve, said valve is significantly heavier and consists of several individual parts which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N2/02B60N2/90B60N2/66
CPCB60N2/02B60N2/665B60N2/914Y10T137/86831Y10T137/87917Y10T137/87925F16K31/004F16K99/0049
Inventor A·科尔勒J·斯坦伯格W·泰尔
Owner CONTI TEMIC MICROELECTRONIC GMBH
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