vehicle seat, motor vehicle

Abstract

A vehicle seat (1) with a seat part (2) and a backrest (3), wherein a ventilation arrangement (9) is arranged on the vehicle seat (1), which has at least one air inlet opening (10), at least one air outlet opening (16), and at least one air duct (12) through which the air inlet opening (10) is fluidically connected to the air outlet opening (16), wherein an end section (15) of the air duct (12) having the air outlet opening (16) extends away from the vehicle seat (1), at least in an operating position of the ventilation arrangement (9), such that the air outlet opening (16) is arranged in front of the backrest (3) in the seat direction, characterized in that the end section (15) extends away from the backrest (3) such that the backrest (3) is arranged axially between the seat part (2), on the one hand, and the air outlet opening (16), on the other hand, with respect to a first axis (17) oriented perpendicular to the seat part (2). is,such that the air outlet opening (16) is located above the area in which the upper body of a person sitting in the vehicle seat (1) is located when the backrest (3) is oriented perpendicular to the seat part (2), wherein the end section (15) is plate-shaped, and / or that the end section (15) has a C-shaped profile, wherein the C-shaped end section (15) is designed such that the bulge of the C-shape faces away from the area in which a person sitting in the vehicle seat (1) is located.

Description

[0001] The invention relates to a vehicle seat, having a seat part and having a backrest, wherein a ventilation arrangement is arranged on the vehicle seat, which has at least one air inlet opening, at least one air outlet opening and at least one air duct through which the air inlet opening is fluidically connected to the air outlet opening.

[0002] Furthermore, the invention relates to a motor vehicle with such a vehicle seat.

[0003] Vehicle seats of the type mentioned above are known. For example, the published patent application DE 100 54 009 A1 discloses a vehicle seat having a seat part and a backrest. A ventilation arrangement is arranged on the vehicle seat, which has an air inlet opening and a plurality of air outlet openings, wherein the air inlet opening is fluidly connected to the plurality of air outlet openings by an air duct. In DE 100 54 009 A1, the air outlet openings are integrated into a seat cover of the seat part or a cover of the backrest. Another vehicle seat with a ventilation arrangement is known from patent application DE 197 03 516 C1. In this vehicle seat, too, the air outlet openings are integrated into the seat cover.Patent DE 10 2004 024 261 B3 discloses a backrest for a vehicle seat, wherein a ventilation arrangement is arranged on the backrest, the air outlet opening of which is located in a space between a base body of the backrest on the one hand and a headrest of the backrest on the other. Vehicle seats of this type are known from published patent applications US 2010 / 0 081 369 A1 and US 2010 / 0 043 794 A1.

[0004] In contrast to conventional motor vehicles, where the seat orientation is usually constant, partially or fully automated motor vehicles allow for variable seat orientations or seat orientations while driving. The invention is based on the object of creating a ventilation concept that always enables the same direct ventilation for a person sitting in the vehicle seat, regardless of the vehicle seat orientation.

[0005] The object underlying the invention is achieved by a vehicle seat having the features of claim 1. According to the invention, an end section of the air duct having the air outlet opening extends away from the vehicle seat, at least in an operating position of the ventilation arrangement, in such a way that the air outlet opening is arranged in front of the backrest in the sitting direction. The end section therefore originates from a section of the air duct that is arranged on the seat part or the backrest. Starting from this section of the air duct, the end section extends away from the seat part or the backrest, namely in such a way that the air outlet opening is arranged in front of the backrest in the sitting direction. Due to the inventive arrangement of the air outlet opening, a person sitting in the vehicle seat can be ventilated by means of the ventilation arrangement, for example directly from the front, directly from the side, or directly from above.Because the ventilation arrangement is arranged on the vehicle seat according to the invention, the ventilation is independent of the sliding position and the rotating position of the vehicle seat. Thus, the same ventilation can always be provided for a person sitting in the vehicle seat in every rotating position and every sliding position of the vehicle seat. In particular, the air outlet opening provides ventilation that at least substantially corresponds to the ventilation provided by a conventional body-mounted ventilation arrangement when the vehicle seat is oriented in the forward direction of travel. Preferably, the ventilation arrangement has a plurality of air outlet openings that are fluidically connected to the air inlet opening by the air duct or by different air ducts.Preferably, at least one further of the plurality of air outlet openings is formed in an end section of an air duct which, at least in the operating position, extends away from the vehicle seat such that the air outlet opening is arranged in front of the backrest in the seating direction. The seat part has a rear end facing the backrest and a front end facing away from the backrest. In the context of the disclosure, the seating direction is understood to mean the orientation of a straight line extending from the rear end of the seat part to the front end of the seat part. Preferably, the backrest is pivotably mounted on the seat part. A pivot angle between the seat part and the backrest can therefore be changed by pivoting the backrest. In this case, it is assumed that the air outlet opening is arranged in front of the backrest in the seating direction if this feature is met at a pivot angle of 90°.The air outlet opening is preferably arranged at least 10 cm in front of the backrest in the seating direction, particularly preferably at least 20 cm. The air inlet opening is preferably part of a ventilation adapter. In this respect, the air inlet opening is designed to be fluidically connected to a supply duct. According to the invention, the end section extends away from the vehicle seat, at least in one operating position of the ventilation arrangement, such that the air outlet opening is arranged in front of the backrest in the seating direction. The ventilation arrangement preferably has at least one further operating position in addition to the operating position, wherein the further operating position can be adjusted starting from the operating position, preferably by deforming and / or displacing the end section.Preferably, the end section also extends away from the vehicle seat in the further operating position such that the air outlet opening is arranged in front of the backrest in the direction of the seat. According to a further preferred embodiment, only a single operating position is provided.

[0006] According to the invention, the end section extends away from the backrest in such a way that the backrest is arranged axially between the seat part, on the one hand, and the air outlet opening, on the other hand, with respect to a first axis oriented perpendicular to the seat part. If the backrest is oriented perpendicular to the seat part, the air outlet opening is located, according to the invention, above the area in which the upper body of a person sitting in the vehicle seat is located. The person can therefore be ventilated from above through the air outlet opening.

[0007] According to a preferred embodiment, the end section extends away from the backrest such that the air outlet opening is arranged axially at the same height as the backrest with respect to the first axis and radially offset from the backrest with respect to a second axis oriented perpendicular to the backrest. The air outlet opening is thus located to the side of the area in which the upper body of a person sitting in the vehicle seat is located. The person can thus be ventilated from the side through the air outlet opening.

[0008] According to a preferred embodiment, the air duct extends at least partially through the backrest and / or at least partially through the seat part. The air duct is thus integrated at least partially into the backrest or the seat part. This makes the ventilation arrangement particularly space-saving. According to an alternative embodiment, the backrest and the seat part are free of the air duct. The air duct then extends at least partially along an outer side of the backrest and / or an outer side of the seat part.

[0009] According to the invention, the end section is plate-shaped. Due to the plate-shaped design, the end section has one side with a large surface area that can be used for ventilation of the person sitting in the vehicle seat. Preferably, several air outlet openings are distributed throughout the plate-shaped end section.

[0010] Preferably, a side of the plate-shaped end section facing the seat part is perforated. The side facing the seat part is thus provided with perforations at regular intervals, with each of the perforations forming an air outlet opening. This design enables the end section to provide displacement ventilation, which is perceived as particularly pleasant by a person sitting in the vehicle seat.

[0011] According to the invention, the end section has a C-shaped profile. According to the invention, the C-shaped end section is designed such that the bulge of the C-shape faces away from the area in which a person sitting in the vehicle seat is located. The C-shaped design then increases the space available for the person, so that the person is not disturbed by the presence of the end section.

[0012] Preferably, an adjustable air directing mechanism is associated with the air outlet opening. Thus, means are provided in the area of ​​the air outlet opening by which the direction of the air flow flowing out of the air outlet opening can be changed. For example, at least one adjustable air guide element is provided in the area of ​​the air outlet opening for this purpose. Particularly preferably, the air outlet opening is designed as a louvre vent.

[0013] According to a preferred embodiment, the end section is movably hinged to a main section of the air duct. A joint is therefore provided which acts between the end section and the main section such that the arrangement of the end section relative to the main section can be changed. This results in the advantage that the end section can be moved into a position in which it does not hinder a person when sitting down on the vehicle seat. For example, the end section can be moved between the operating position and a stowed position. In particular, in the stowed position the air outlet opening is not arranged in front of the backrest in the direction of the seat, but at the same height as the backrest or behind the backrest. According to an alternative embodiment, it is preferably provided that the air duct is rigid overall.

[0014] The end section is preferably designed to be deformable. This results in the advantage that the end section can be deformed such that it does not hinder a person when sitting down on the vehicle seat. Starting from the operating position, the stowed position can then be adjusted by deforming the end section. Another advantage is that the end section can be deformed such that a desired area is specifically ventilated through the air outlet opening. According to this embodiment, the end section is preferably formed from several sub-segments arranged one behind the other in the direction of flow, with each sub-segment being hinged to the two adjacent sub-segments. The end section is preferably designed like a telescopic tube.The end section is therefore formed from several sub-segments that can be pushed into one another, so that the end section can be deformed at least by pushing the sub-segments into one another.

[0015] According to a preferred embodiment, the vehicle seat comprises at least one controllable actuator, wherein the actuator is assigned to the end section in such a way that the end section can be displaced relative to the main section by controlling the actuator, and / or wherein the actuator is assigned to the end section in such a way that the end section can be deformed by controlling the actuator. Displacing or deforming the end section by the actuator is particularly comfortable for a person sitting in the vehicle seat.

[0016] The motor vehicle according to the invention is characterized by the features of claim 9 and the vehicle seat according to the invention. This also results in the aforementioned advantages. Further preferred features and combinations of features emerge from the above description and from the claims.

[0017] According to a preferred embodiment, the vehicle seat is mounted so that it can be displaced and / or rotated about a vertical axis. The ability to change the orientation or arrangement of the vehicle seat is particularly convenient for the person sitting in the vehicle seat. The ability to rotate about the vertical axis is particularly advantageous in partially automated or fully automated vehicles.

[0018] The vehicle preferably has a central air conditioning unit, wherein the air inlet opening is fluidly connected to the central air conditioning unit via a supply duct. A central air conditioning unit is understood to be a ventilation device that has at least one heating device for heating air and at least one air conveying device for providing an air flow. Because the air inlet opening is connected to the central air conditioning unit, the ventilation arrangement arranged on the vehicle seat itself does not need to have any means for heating air or any air conveying device. The ventilation arrangement can therefore be designed in a technically simple and cost-effective manner. If the vehicle seat is displaceably mounted, the supply duct is preferably designed to compensate for any displacement of the vehicle seat.If the vehicle seat is mounted so as to be rotatable about the vertical axis, the fluidic connection between the supply duct and the air inlet opening is preferably designed such that the connection is always airtight in any rotational position of the vehicle seat.

[0019] The vehicle preferably has at least one temperature sensor and a control unit, wherein the control unit is communicatively connected to the temperature sensor and is specifically configured to control the ventilation arrangement and / or the central air conditioning unit depending on a sensor signal from the temperature sensor. This results in automated ventilation that is particularly comfortable for a person sitting in the vehicle seat. The temperature sensor is preferably configured to detect a temperature of the person sitting in the vehicle seat. The control unit is preferably configured to control the heating device of the central air conditioning unit, the air conveying device of the central air conditioning unit, and / or the actuator(s) assigned to the end section depending on the sensor signal from the temperature sensor.

[0020] The invention is explained in more detail below with reference to the drawings. Fig. 1A and Fig. 1B each show a view of a vehicle seat according to a first embodiment and Fig. 2A and Fig. 2B each shows a view of the vehicle seat according to a second embodiment.

[0021] Fig. 1A and Fig. 1B each show a representation of a vehicle seat 1. Fig. 1A the vehicle seat 1 in a side view. Fig. 1B shows a plan view of the vehicle seat 1. The vehicle seat 1 has a seat part 2 and a backrest 3. In the present case, the seat part 2 and the backrest 3 are connected to one another by a rigid connection. According to a further exemplary embodiment, the backrest 3 is pivotally mounted on the seat part 2. The backrest 3 has a base body 19 and a headrest 20 slidably mounted on the base body 19. Alternatively, the base body 19 and the headrest 20 are formed integrally with one another.

[0022] The seat part 2 has a rear end 4 facing the backrest 3 and a front end 5 facing away from the backrest 3. A straight line 6 extends from the rear end 4 to the front end 5. The orientation of this straight line 6 corresponds to the seating direction of the vehicle seat 1. The backrest 3 has a rear side 7 facing away from the seat part 2 and a front side 8 facing the seat part 2. The front side 8 is arranged in front of the rear side 7 in the seating direction.

[0023] A ventilation arrangement 9 is arranged on the vehicle seat 1. The ventilation arrangement 9 has an air inlet opening 10. In the present case, the air inlet opening 10 is part of a ventilation adapter 11 and is therefore designed to be fluidically connected to a supply duct. The ventilation adapter 11 is arranged on an underside of the seat part 2. The ventilation arrangement 9 also has an air duct 12, which is fluidically connected to the air inlet opening 10. A main section 13 of the air duct 12 is integrated into the vehicle seat 1 in such a way that the main section 13 extends partially through the seat part 2 and partially through the backrest 3.

[0024] The air duct 12 also has an end section 15 located behind the main section 13 in the flow direction 14. The end section 15 has a plurality of air outlet openings 16. Starting from the rear side 7 of the backrest 3, the end section 15 extends away from the backrest 3 such that the air outlet openings 16 are arranged in front of the backrest 3 in the sitting direction. Furthermore, the end section 15 extends away from the backrest 3 such that the backrest 3 is arranged axially between the seat part 2 on the one hand and the air outlet openings 16 on the other hand, with respect to a first axis 17 oriented perpendicular to the seat part 2. The air outlet openings 16 are formed in a side 21 of the end section 15 facing the seat part 2. Due to the arrangement of the air outlet openings 16, a person 18 sitting on the vehicle seat 1 can be ventilated from above by means of the ventilation arrangement 9, as shown in Fig. 1A and Fig. 1B.

[0025] As from Fig. As can be seen in Figure 1B, the end section 15 is plate-shaped. The outlet openings 16 are formed by a plurality of perforations. Thus, the plate-shaped end section 15 is perforated. This configuration of the end section 15 is particularly advantageous in that the ventilation arrangement 9 is designed to provide displacement ventilation by means of the end section 15. This is particularly pleasant for the person 18.

[0026] Fig. 1A and Fig. 1B show the ventilation arrangement 9 and the end section 15 in an operating position. In the present case, the air duct 12 is designed to be rigid overall, so that the ventilation arrangement 9 and the end section 15 only have the operating position. According to a further exemplary embodiment, the air duct 12 is designed such that the end section 15 can be moved from the operating position into a stowed position. For example, the end section 15 is hinged to the main section 13 in such a way that the end section 15 is pivotable. Alternatively or additionally, the end section 15 is designed to be deformable, so that, starting from the operating position, the stowed position can be adjusted by deforming the end section 15.In particular, the end section 15 is arranged or configured in the stowed position such that the air outlet openings 16 are arranged at the same height as the backrest 3 in the seating direction or behind the backrest 3. The air outlet openings 16 are then arranged in front of the backrest 3 in the seating direction only in the operating position. Preferably, at least one controllable actuator is provided, which is assigned to the end section 15 such that the end section 15 can be pivoted or deformed by controlling the actuator.

[0027] The vehicle seat 1 is a vehicle seat 1 for a motor vehicle. In this respect, the vehicle seat 1 is designed to be installed in a motor vehicle. If the vehicle seat 1 is installed in the motor vehicle, the vehicle seat 1 is preferably mounted so as to be displaceable in the forward direction of travel of the motor vehicle and against the forward direction of travel of the motor vehicle. In addition, the vehicle seat 1 is then preferably mounted so as to be rotatable about a vertical axis. Because the ventilation arrangement 9 is arranged on the vehicle seat 1, the ventilation is independent of the sliding position and the rotational position of the vehicle seat 1. If the vehicle seat 1 is installed in the motor vehicle, the air inlet opening 10 is preferably fluidically connected to a central air conditioning unit of the motor vehicle via a supply duct.

[0028] Fig. 2A and Fig. 2B each show a representation of the vehicle seat 1 according to a further embodiment. Fig. 2A a side view of the vehicle seat 1. Fig. 2B shows a top view of the vehicle seat 1. The Fig. 2A and Fig. The vehicle seat 1 shown in Figure 2B differs from the one shown in Fig. 1A and Fig. 1B illustrated vehicle seat 1 with regard to the design of the ventilation arrangement 9.

[0029] In the Fig. 2A and Fig. In the embodiment illustrated in Figure 2B, the air duct 12 has a first end section 15A, which extends from a first side 22A of the base body 19 of the backrest 3 away from the backrest 3. Furthermore, the air duct 12 has a second end section 15B, which extends from a second side 22B of the base body 19 of the backrest 3 away from the backrest 3. The end sections 15A and 15B each have an outlet opening 16A and 16B, respectively.

[0030] According to the Fig. 2A and Fig. In the embodiment shown in Figure 2B, the end sections 15A and 15B are each C-shaped. The bulges 23A and 23B of the end sections 15A and 15B, respectively, face away from the person 18. The space available for the person 18 is thereby increased, so that the person 18 is not blocked by the end sections 15A and 15B.

[0031] The first end section 15A extends away from the backrest 3 such that the air outlet opening 16A is arranged in front of the backrest 3 in the sitting direction. Furthermore, the first end section 15A extends away from the backrest 3 such that the air outlet opening 16A is arranged at the same height as the backrest 3 with respect to the first axis 17 and radially offset from the backrest 3 with respect to a second axis 24 oriented perpendicular to the backrest 3. The same applies to the second end section 15B and the air outlet opening 16B of the end section 15B.

[0032] According to the Fig. 2A and Fig. In the embodiment shown in Figure 2B, an adjustable air directing mechanism is assigned to each of the air outlet openings 16A and 16B. In this case, the air outlet openings 16A and 16B are designed as louvre outlets.

[0033] Also Fig. 2A and Fig. 2B show the operating position of the ventilation arrangement 9 and the end sections 15A, 15B, respectively. According to the Fig. 2A and Fig. 2B, the end sections 15A and 15B are hinged to the main section 13 in such a way that the end sections 15A and 15B are pivotable, as shown in Fig. 2A by the double arrow 25. The end sections 15A and 15B can therefore be formed starting from the Fig. 2A and Fig. 2B into a stowed position. Alternatively or additionally, the end sections 15A and 15B are preferably designed to be deformable. For example, the end sections 15A and 15B are each constructed like a telescopic tube for this purpose. Preferably, at least one controllable actuator is provided, which is assigned to the first end section 15A such that the first end section 15A can be pivoted or deformed by controlling the actuator. Preferably, at least one controllable actuator is provided, which is assigned to the second end section 15B such that the second end section 15B can be pivoted or deformed by controlling the actuator.

[0034] According to a further embodiment, the ventilation arrangement 9 comprises both the plate-shaped end section 15 of the Fig. 1A and Fig. 1B as well as the C-shaped end sections 15A, 15B of the embodiment shown in Fig. 2A and Fig. 2B illustrated embodiment. List of reference symbols 1 vehicle seat 2 seat part 3 backrest 4 Rear end 5 Front end 6 straight 7 Back 8 Front 9 Ventilation arrangement 10 Air inlet opening 11 ventilation adapter 12 air duct 13 Main section 14 Flow direction 15 Final section 16 Air outlet opening 17 First axis 18 people 19 basic bodies 20 headrest 21 Page of the final section 22 side of the base body 23 Bulge 24 Second Axis 25 double arrow

Claims

[1] Vehicle seat (1) with a seat part (2) and with a backrest (3), wherein a ventilation arrangement (9) is arranged on the vehicle seat (1), which has at least one air inlet opening (10), at least one air outlet opening (16) and at least one air duct (12) through which the air inlet opening (10) is fluidically connected to the air outlet opening (16), wherein an end section (15) of the air duct (12) having the air outlet opening (16) extends away from the vehicle seat (1) at least in an operating position of the ventilation arrangement (9) such that the air outlet opening (16) is arranged in front of the backrest (3) in the seat direction, characterized bythat the end section (15) extends away from the backrest (3) in such a way that the backrest (3) is arranged axially between the seat part (2) on the one hand and the air outlet opening (16) on the other hand, with respect to a first axis (17) oriented perpendicular to the seat part (2), so that the air outlet opening (16) is located above the area in which the upper body of a person sitting in the vehicle seat (1) is located when the backrest (3) is oriented perpendicular to the seat part (2), wherein the end section (15) is plate-shaped, and / or that the end section (15) has a C-shaped profile, wherein the C-shaped end section (15) is designed in such a way that the bulge of the C-shape faces away from the area in which a person sitting in the vehicle seat (1) is located. [2] Vehicle seat according to claim 1, characterized bythat the end section (15) extends away from the backrest (3) in such a way that the air outlet opening (16) is arranged axially at the same height as the backrest (3) with respect to the first axis (17) and radially offset from the backrest (3) with respect to a second axis (24) oriented perpendicular to the backrest (3). [3] Vehicle seat according to one of the preceding claims, characterized by that the air duct (12) extends at least partially through the backrest (3) and / or that the air duct (12) extends at least partially through the seat part (2). [4] Vehicle seat according to claim 1, characterized by that a side (21) of the plate-shaped end section (15) facing the seat part (2) is perforated. [5] Vehicle seat according to one of the preceding claims, characterized by that the air outlet opening (16) is assigned an adjustable air directing mechanism. [6] Vehicle seat according to one of the preceding claims, characterized by that the end section (15) is movably hinged to a main section (13) of the air duct (12). [7] Vehicle seat according to one of the preceding claims, characterized by that the end portion (15) is designed to be deformable. [8] Vehicle seat according to one of the preceding claims, characterized by at least one controllable actuator, wherein the actuator is assigned to the end section (15) in such a way that the end section (15) can be displaced relative to the main section (13) by controlling the actuator, and / or wherein the actuator is assigned to the end section (15) in such a way that the end section (15) can be deformed by controlling the actuator. [9] Motor vehicle, characterized by at least one vehicle seat (1) according to one of the preceding claims. [10] Motor vehicle according to claim 9, characterized bythat the vehicle seat (1) is mounted displaceably, and / or that the vehicle seat (1) is mounted rotatably about a vertical axis. [11] Motor vehicle according to one of claims 9 and 10, characterized by a central air conditioning unit, wherein the air inlet opening (10) is fluidly connected to the central air conditioning unit by a supply duct. [12] Motor vehicle according to one of claims 9 to 11, characterized by at least one temperature sensor and a control unit, wherein the control unit is communicatively connected to the temperature sensor and is specially designed to control the ventilation arrangement (9) and / or the central air conditioning unit in dependence on a sensor signal from the temperature sensor.

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