MOTOR VEHICLE WITH ONE VEHICLE SEAT

Abstract

Motor vehicle (10) comprising a vehicle seat (1), the vehicle seat (1) comprising: - a seat part (3); - a backrest (4); - a headrest (2); and - an air guide (5) arranged inside the vehicle seat (1), wherein the air guide (5) has an air inlet (7) and an air outlet (6), and wherein the air outlet (6) is formed on a side of the headrest (2) facing away from the backrest (4), characterized in that - the motor vehicle (10) comprises a panoramic roof (11), and - the air duct (5) is designed for direct cooling of the panoramic roof (11) by expelling air from the air outlet (6) in the direction of the panoramic roof (11).

Description

[0001] The present disclosure relates to a motor vehicle comprising a vehicle seat.

[0002] In a motor vehicle, the head space or interior is usually cooled by an air conditioning system. Air is directed indirectly toward the head space via the indirect ventilation and the fresh air grilles.

[0003] Panoramic roofs are expected to be increasingly installed in motor vehicles in the future. The glass roof of such a panoramic roof significantly increases the solar energy input. The temperature of the glass surface can reach up to 100°C. With current airflow concepts and the standard arrangement of fresh air grilles in the instrument panel, cooling the head area is becoming increasingly difficult.

[0004] DE 10 2009 043 112 A1 describes a vehicle seat for a passenger compartment of a motor vehicle. The vehicle seat has a ventilation device integrated into a headrest and a backrest of the vehicle seat. A respective air outlet opening is arranged on a rear side of the headrest and the backrest. Fans of the ventilation device generate an air flow that exits into an area behind the vehicle seat. The ventilation device comprises heating fabrics arranged in the air outlet openings for heating the air flow.

[0005] DE 10 2004 004 388 B3 describes a vehicle seat with a backrest, a headrest with a head cushion, and a device for heating the neck and head area of ​​a seat occupant with warm air. The device has an air duct arranged in the head cushion with a warm air outlet opening. The warm air outlet opening is located on the underside of the head cushion, and the space between the underside of the head cushion and the top of the backrest is sealed off to the rear by a cover.

[0006] JP 2019-196086 A describes a system for reducing meteorological influence in an open-sided motor vehicle, comprising a seat air conditioning system configured to blow air over a seat, and a main air conditioning system configured to blow air toward the rear of the vehicle from a windshield blowout opening provided in a frame of a windshield. When it is determined that a current meteorological condition is a prescribed discomfort condition, such as rain, the seat air conditioning system blows air over the seat and the main air conditioning system blows air toward the rear of the vehicle, thereby forming a combined airflow for blowing a foreign matter, such as rain, toward the rear of the vehicle.

[0007] DE 10 2007 031 323 A1 describes a seat ventilation device for a cushion of a vehicle seat, in particular of an open passenger car, with a channel arrangement arranged within the cushion, wherein at least one open air inlet channel and / or air outlet channel is provided, the air inlet opening or air outlet opening of which is arranged in a region of the cushion covered by a seat cover.

[0008] DE 10 2004 057 640 A1 describes an air supply device for a vehicle seat, particularly a convertible. Using a Peltier element located in an air duct of the air supply device, the temperature of the air flow can be adjusted depending on various parameters. For this purpose, the air flow is directed either over a heating surface or a cooling surface of the Peltier element.

[0009] DE 11 2009 002 158 B4 describes a seat assembly comprising a seat surface configured for movement between a first position and a second position, the seat surface having an air inlet, and a flexible conduit in fluid communication with the air inlet for supplying air to the seat surface.

[0010] DE 10 2006 031 260 C5 describes a device for discharging air for a seat in a motor vehicle, comprising a pressure generating device and an air duct leading from the pressure generating device to an air outlet opening located in an area facing the neck of a person using the seat.

[0011] Against the background of this prior art, the object of the present disclosure is to provide a device which is each suitable for enriching the prior art.

[0012] The problem is solved by the features of the independent claim. The subclaims each contain optional developments of the disclosure.

[0013] The task is then solved by a motor vehicle that includes a vehicle seat (for the motor vehicle).

[0014] The vehicle seat comprises a seat part, a backrest and a headrest.

[0015] The vehicle seat includes an air duct located within the vehicle seat. The air duct has an air inlet and an air outlet.

[0016] The air outlet is located on the side of the headrest facing away from the backrest.

[0017] The vehicle seat described above offers a number of advantages. Among other things, it enables direct (and targeted) air supply and thus direct (and targeted) temperature control, e.g., cooling, of the head space above the vehicle seat, thereby achieving overall improved climate comfort within the vehicle.

[0018] By arranging the air duct in the vehicle seat, the distance between the air outlet and the target area—the head space—is as short as possible, so that the smallest possible air volume is sufficient to regulate the temperature in the head space. Furthermore, this direct and targeted temperature control can be moved or shifted with the vehicle seat within the vehicle and can also be used (or activated) for specific seats, for example.

[0019] If the motor vehicle has a panoramic roof, the vehicle seat or its air duct can advantageously enable direct and unhindered air flow towards the panoramic roof and thus direct temperature control, e.g. cooling, of the panoramic roof.

[0020] Possible further developments of the retrofitting device described above are explained in detail below.

[0021] The air guide may comprise an air duct, which may be formed (e.g., entirely) within the vehicle seat. The air duct may (fluidically) connect the air inlet and the air outlet.

[0022] The air outlet may have an air vent.

[0023] The air inlet can be formed on a side of the seat part and / or the backrest facing away from the headrest. The air inlet can be formed on an underside of the vehicle seat.

[0024] The air duct may comprise at least one air conveying device, which may be configured to draw in air through the air inlet and expel it through the air outlet. The at least one air conveying device may, for example, comprise at least one fan (e.g., an axial fan).

[0025] The air duct may include an active air cooling device for cooling the air guided in the air duct. The active air cooling device may include, for example, a heat exchanger and / or a heat transfer device.

[0026] The air duct must have a connection for a vehicle air conditioning system to control the temperature of the air guided in the air duct.

[0027] The air duct can be designed at least partially as part of a seat ventilation, a seat cooling and / or a neck warmer of the vehicle seat.

[0028] The headrest can be designed as part of the backrest and / or be height-adjustable.

[0029] The vehicle seat can be arranged to be displaceable, e.g. in the longitudinal direction of the motor vehicle.

[0030] The air duct can be designed for direct cooling and / or temperature control of a head space above the vehicle seat.

[0031] The motor vehicle includes a panoramic roof (and / or a sunroof). The panoramic roof may also be referred to as a glass roof and / or have a glass pane (e.g., instead of a roof covering of the motor vehicle).

[0032] The air duct is designed to directly cool the panoramic roof (and / or the sunroof) by expelling air from the air outlet in the direction of the panoramic roof (and / or the sunroof).

[0033] The motor vehicle may comprise (indirect) ventilation, wherein, for example, at least one outlet of the ventilation may be arranged in an instrument panel (or dashboard) of the motor vehicle.

[0034] The motor vehicle may comprise a fresh air supply, wherein, for example, at least one fresh air grill may be arranged in the instrument panel (or dashboard).

[0035] The motor vehicle may include a (vehicle) air conditioning system.

[0036] The motor vehicle may comprise a control device that may be configured to control the cooling and / or tempering of the air in the air duct and / or the expulsion of the air from the respective air outlet. The control device may be configured to control the at least one air conveying device and / or the active air cooling device, e.g., depending on (one or more) inputs via an input unit of the motor vehicle.

[0037] The control device can, for example, be an electronic control unit (ECU). The electronic control unit can be an intelligent processor-controlled unit that can communicate with other modules, for example, via a central gateway (CGW), and can form the vehicle's on-board network via fieldbuses such as the CAN bus, LIN bus, MOST bus, FlexRay, and / or via the automotive Ethernet, e.g., together with telematics control units and / or environmental sensors.

[0038] The motor vehicle may comprise several seats, each designed according to the vehicle seat described above.

[0039] Cooling and / or tempering of the air in the respective air duct and / or discharge of the air from the respective air outlet can be individually controllable for the multiple seats (e.g. by the control device).

[0040] The motor vehicle may be a passenger car, in particular an automobile, or a commercial vehicle, such as a truck.

[0041] The motor vehicle can be an electrically powered, e.g. mobile, motor vehicle.

[0042] What has been described above with reference to the vehicle seat also applies analogously to the motor vehicle and vice versa.

[0043] The above description can be summarized in other words and in a possible more concrete embodiment of the disclosure as described below, whereby the following description is not to be interpreted as limiting the disclosure.

[0044] To maintain a comfortable headroom temperature, suitable airflow is required. This can be achieved by directing air through the seats or headrests toward the roof. This can have the following advantages.

[0045] This can counteract the additional energy input from the sun.

[0046] Direct and unobstructed air flow towards a panoramic roof can be made possible.

[0047] The cooling of the headroom can be adjusted according to the seating position.

[0048] The cooling system can be used on a seat-specific basis. This also contributes to increasing the electric range, as the cooling system can only be activated when the seats are occupied.

[0049] Due to the relatively short distance between the headrest and the roof, a smaller air volume is required to reach the target area, namely the head space. A smaller air volume can be less noticeable acoustically.

[0050] The fresh air grills and the indirect ventilation can be used to cool the upper body.

[0051] Overall, an improvement in climate comfort can be achieved.

[0052] Air flow through the seat can be based on seat ventilation, seat cooling, and / or a neck warmer, for example, whereby an air outlet can also be constructed on top of the headrest. Cooling itself can be achieved in various ways. Examples include air intake from beneath the seat without active cooling, air intake from beneath the seat with active cooling similar to seat cooling, and / or connecting the seat to the air conditioning unit or system (of the vehicle) to allow temperature control by the air conditioning unit.

[0053] Below is an optional embodiment with reference to Fig. 1 and Fig. 2 described. Fig. 1 shows schematically a vehicle seat according to the disclosure, and Fig. 2 schematically shows a motor vehicle according to the disclosure with the vehicle seat.

[0054] The Fig. 1 The vehicle seat 1, shown only schematically, comprises a seat part 3, a backrest 4; and a headrest 2.

[0055] The vehicle seat 1 further comprises an air duct 5 arranged within the vehicle seat 1, wherein the air duct 5 has an air inlet 7 and an air outlet 6. The air outlet 6 is formed on a side of the headrest 2 facing away from the backrest 4.

[0056] In the embodiment shown, the air inlet 7 is formed on a side of the seat part 3 and / or the backrest 4 facing away from the headrest 2. However, other positions of the air inlet 7 are also conceivable, e.g., on a front side of the seat part 3 and / or on a rear side of the backrest 4.

[0057] The air guide 5 may have at least one air conveying device (not shown) which may be designed to suck in air through the air inlet 7 and expel it through the air outlet 6.

[0058] The air duct 5 can have an active air cooling device (not shown) for cooling the air guided in the air duct 5. Alternatively, or additionally, it is also conceivable that the air duct 5 can be connected to a vehicle air conditioning system for controlling the temperature of the air guided in the air duct 5.

[0059] The air guide 5 can be designed at least partially as part of a seat ventilation, a seat cooling and / or a neck warmer of the vehicle seat 1.

[0060] In the Fig.2 shows only a schematic representation of the motor vehicle 10 with the vehicle seat 1. By way of example, the driver's seat is designed according to the vehicle seat 1. However, it is also conceivable that one of the other seats or several seats within the vehicle seat 1 can be designed according to the vehicle seat 1, wherein, for example, cooling and / or tempering of the air in the respective air duct 5 and / or expulsion of the air from the respective air outlet can be individually controlled for the several seats.

[0061] By arranging the air outlet 6 on the upper side of the headrest 2, the air duct 5 can be designed for direct cooling and / or temperature control of a head space above the vehicle seat 1.

[0062] The motor vehicle 10 further comprises a panoramic roof 11, wherein the air duct 5 is designed for direct cooling of the panoramic roof 11 by expelling the air from the air outlet 6 in the direction of the panoramic roof 11. List of reference symbols 1 vehicle seat 2 headrests 3 Seat part 4 backrest 5 Air duct 6 Air outlet of the air duct 7 Air inlet of the air duct 10 motor vehicle 11 Panoramic roof

Claims

[1] Motor vehicle (10) comprising a vehicle seat (1), the vehicle seat (1) comprising: - a seat part (3); - a backrest (4); - a headrest (2); and - an air duct (5) arranged within the vehicle seat (1), wherein the air duct (5) has an air inlet (7) and an air outlet (6), and wherein the air outlet (6) is formed on a side of the headrest (2) facing away from the backrest (4), characterized by , that - the motor vehicle (10) comprises a panoramic roof (11), and - the air duct (5) is designed for direct cooling of the panoramic roof (11) by expelling air from the air outlet (6) in the direction of the panoramic roof (11). [2] Motor vehicle (10) according to claim 1, characterized by that the air inlet (7) is formed on a side of the seat part (3) and / or the backrest (4) facing away from the headrest (2). [3] Motor vehicle (10) according to claim 1 or 2, characterized by that the air guide (5) has at least one air conveying device which is designed to suck in air through the air inlet (7) and to expel it through the air outlet (6). [4] Motor vehicle (10) according to one of the preceding claims, characterized by that the air duct (5) has an active air cooling device for cooling the air guided in the air duct (5). [5] Motor vehicle (10) according to one of the preceding claims, characterized by that the air duct (5) has a connection for a vehicle air conditioning system for tempering the air guided in the air duct (5). [6] Motor vehicle (10) according to one of the preceding claims, characterized by that the air guide (5) is designed at least partially as part of a seat ventilation, a seat cooling and / or a neck warmer of the vehicle seat (1). [7] Motor vehicle (10) according to one of the preceding claims, characterized by that the air duct (5) is designed for direct cooling and / or tempering of a head space above the vehicle seat (1). [8] Motor vehicle (10) according to one of the preceding claims, characterized by , that - the motor vehicle (10) comprises several seats, each designed according to the vehicle seat (1), and - cooling and / or tempering of the air in the respective air duct (5) and / or discharge of the air from the respective air outlet for the plurality of seats can be individually controlled.

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