Motor vehicle seat with massage function and motor vehicle

Abstract

Motor vehicle seat (2) with massage function, wherein the motor vehicle seat (2) has a seat surface (6) and a backrest (4), wherein a plurality of massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) are arranged in the seat surface (6) and / or in the backrest (4), wherein the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) each have a massage bladder (8.1) that can be pressurized with a fluid and which increases in volume when filled with the fluid, thereby exerting pressure on a part of the body of a passenger sitting in the motor vehicle seat (2), wherein each of the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) a motor (8.2) is arranged, which is movable between a retracted position and an extended position, whereby increased pressure can be exerted on a part of the body of a passenger sitting in the motor vehicle seat (2) in the extended position, wherein at least one massage bladder (8.1) is sealed on the motor (8.2).

Description

A motor vehicle seat with massage function and a motor vehicle are described. Motor vehicle seats with massage function and motor vehicles of the type mentioned above are known in the prior art. Various massage systems for motor vehicle seats are disclosed in the prior art. These known massage systems generally use massage bubbles or vibration generators. These systems are either structured in layers or side-by-side, or only one massage technology is integrated into the motor vehicle seat. Due to their design, massage bladders can only be operated in a very low frequency range and are therefore only suitable for pressure massages. Vibration generators, on the other hand, have a high frequency range and are therefore only suitable for vibration massages. However, both are often necessary for an effective massage. From DE 10 2019 101 935 A1, a motor vehicle seating system is known that comprises a motor vehicle seat, in particular a driver's seat. The motor vehicle seat has a plurality of fluid-fillable bladders as well as a control unit and a piping system connected to the bladders with lines leading to the bladders. These lines allow the bladders to be filled or emptied according to the control unit's specifications. The bladders comprise first bladders arranged at least in the backrest and seat section of the motor vehicle seat in a two-column arrangement on both sides of the spinal contact area of ​​the backrest, or in two columns below the thigh contact area, or below the contact area of ​​the ischial tuberosities. The bladders also comprise and / or second bladders arranged in the area of ​​the side bolsters of the seat section and / or backrest, or in the area of ​​the lumbar support or headrest.The control system is designed to output a corresponding haptic warning or information signal when a predetermined event occurs, in order to inform a vehicle occupant that a specific event has occurred, by designing the control system to apply a predetermined filling or emptying pattern to at least one of the first and / or second bubbles in order to haptically indicate the warning or information signal to the vehicle occupant. WO 2010 / 091864 A1 discloses a vehicle seat with a cushion of a seat cushion and / or a seat back, with a massage device having a plurality of pressurizable elements which are integrated into the cushion to influence the seat contour and which can each be controlled separately, and with a control device for controlling the massage device, wherein, in addition to the massage device, seat climate control can be controlled by means of the control device. DE 10 2019 115 348 A1 discloses a vehicle seat with upholstery and a seat cover and furthermore a first massage device and a second massage device, wherein the first massage device has at least one first massage element, and the second massage device has at least one second massage element, the first and the second massage element being of different types, the type being selected from: fluid-actuated massage element, in particular fluid cushion, mechanical massage element, mechatronic massage element and dielectric massage element. Therefore, the task is to further develop motor vehicle seats with massage function and motor vehicles of the aforementioned type in such a way that a wider range of massages is possible and the massages can also be intensified. The problem is solved by a motor vehicle seat with massage function according to claim 1 and a motor vehicle according to the dependent claim 9. Further developments and training are subject to dependent claims. A motor vehicle seat with a massage function is described, wherein the motor vehicle seat has a seat surface and a backrest, wherein a plurality of massage modules are arranged in the seat surface and / or in the backrest, wherein each massage module has a massage bladder that can be filled with a fluid and whose volume increases upon filling with the fluid, thereby exerting pressure on a part of the body of a passenger sitting in the motor vehicle seat, wherein a motor is arranged on one side of each massage module facing a seat cover of the motor vehicle seat, and which is movable between a retracted position and an extended position, thereby exerting increased pressure on a part of the body of a passenger sitting in the motor vehicle seat in the extended position. It is provided that at least one massage bladder is sealed at the motor. The described vehicle seat allows for the implementation of two massage systems without requiring additional space. The linear motor is located on a side of the massage bladder facing the seat cover, so that the motor moves with the massage bladder when it is inflated and deflated. The motor's placement within the massage bladder simultaneously secures it in place. When the massage bladder is fully inflated, the greatest counter-pressure is present, thus providing the strongest support for the motor. This allows for further, rapid pulses from the motor to achieve a higher intensity than the massage bladder alone, even if only applied to specific areas. The massage systems can operate at different frequency ranges, delivering a more effective massage to the passenger. The combined activation of the massage bladder and motor simulates a masseur's finger as it presses deeply on a specific area of ​​the body, increasing and decreasing the pressure. Furthermore, the combination of the massage bladder and motor allows the massage bladder to reach areas of the body that are otherwise inaccessible to the massage bladder. Furthermore, significantly more motors can be installed in the vehicle seat than with known solutions. In a first further development, it is provided that a control unit is provided for controlling the massage modules. The motors are controlled by a separate control unit or by a zone computer. The massage bubbles can be controlled by the control unit via a control block of valves, which can be located on a compressor. In a further, more advanced embodiment, the motor is a linear motor. Linear motors have a compact design and are fast and precise. Each linear motor is powered via a single cable. The linear motors can be moved at any time and deliver a pulse to the passenger's body. In a further, more advanced embodiment, it is provided that the massage modules are arranged in a matrix in the seat and / or the backrest. In this way, different body zones can be reached and different massage programs can be implemented. In a further, more advanced embodiment, it is provided that a pressure sensor is arranged on at least one of the massage modules. This serves safety, ergonomics, and comfort. The pressure sensor can be installed in a pressure line or on a massage bladder, particularly on the side of the massage bladder not facing the seat cover. In a further, more advanced embodiment, it is provided that at least one massage bladder has a pocket for the motor. In a further, more advanced embodiment, it is provided that the control unit is equipped to control at least one motor for transmitting information to the passenger. Thus, by activating one or more motors, hazard warnings, takeover warnings, direction indicators, blind spot assist and the like can be supported haptically. In a further, more advanced embodiment, the fluid is provided for to be air. Air compressors and compressed air storage tanks are often already installed in motor vehicles and can be used for the vehicle seat(s). Another independent item concerns a motor vehicle with at least one motor vehicle seat of the type described above. Further advantages, features, and details will become apparent from the following description, in which – possibly with reference to the drawing – at least one embodiment is described in detail. Identical, similar, and / or functionally equivalent parts are identified by the same reference numerals. The figures show schematically: Fig. 1 a top view of a motor vehicle seat; Fig. 2 a sectional view through a massage module in the motor vehicle seat in a first state; Fig. 3 a sectional view through a massage module in the motor vehicle seat in a second state; and Fig. 4 a sectional view through a massage module in the motor vehicle seat in a third state. Fig. 1 shows a top view of a motor vehicle seat 2. The motor vehicle seat 2 has a backrest 4 and a seat surface 6. In the backrest 4 and seat surface 6, a plurality of massage modules 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 are arranged in a matrix. Each massage module 8-26 has essentially the same construction and comprises a massage bladder 8.1 and a linear motor 8.2. For clarity, only the massage bladder 8.1 and the linear motor 8.2 of the massage bladder 8.1 are labeled in Fig. 1. Linear motors have the advantage that they can be compactly constructed, can be fully or partially extended in a controlled manner, can be held statically in the corresponding fully or partially extended position, and / or vibrations can be superimposed around the fully or partially extended position. All massage modules 8-26 are connected to a control unit 30, which is configured to individually control the massage bubbles 8.1 and linear motors 8.2 of the massage bubbles 8-26. This allows for the implementation of various massage programs and additional functions. The control unit 30 is also connected to a compressor 32 with a pressure reservoir and can inflate and deflate the individual massage bubbles 8.1 via pressure lines 34 using the compressor 32. The control unit 30 also serves to supply power to the linear motors 8.2 via power lines 36 and to monitor position. For example, it is possible to generate a wave motion using control unit 30, which moves slowly from bottom to top and vice versa along the back of a passenger sitting in vehicle seat 2. Such a massage has a relaxing effect. Another program that can be implemented by the control unit 30 can provide for a vibration massage using the linear motors 8.2. For pain in a specific area, the massage bubbles 8.1 and linear motors 8.2 can be activated together to apply intense, targeted pressure to the painful area, thereby inducing muscle relaxation. This additional pressure can be combined with vibrations to further accelerate the relief of muscle spasms and pain. Fig. 2 shows a sectional view through the massage module 8. The massage bladder 8.1 forms a closed interior space 8.1a with variable volume. A pocket 8.1b is formed in the massage bladder 8.1, in which the linear motor 8.2 with its housing 8.2a and its rotor 8.2b is arranged. The power line 36 leading to the (not shown) control unit 30 serves to control and supply energy to the linear motor 8.2. For inflation and deflation, the massage bladder 8.1 is connected to the pressure line 34. The internal pressure in the interior 8.1a of the massage bladder 8.1 is monitored by a pressure sensor 42, which is connected to the control unit 30 and / or to the compressor 32. In Fig. 2, the massage bladder 8.1 is shown in its maximum inflated state. This creates a bulge in a seat cover 46, which exerts increased pressure on the back of a passenger sitting in the motor vehicle seat 2. Both the massage bubble 8.1 and the linear motor 8.2 are oriented towards the seat cover 46 and can therefore exert pressure directly on a part of the passenger's body. Fig. 3 shows the massage bladder 8.1 with minimal volume of the interior 8.1a. In this position, the seat cover 46 is almost flat. Fig. 4 shows the massage bladder 8.1 inflated to its maximum and the runner 8.2b fully extended. This results in a strong curvature of the seat cover 46 and consequently high localized pressure on a specific area of ​​the passenger's body. Reference symbol list 2 Vehicle seat 4 Backrest 6 Seat surface 8 - 26 Massage module 8.1 Massage bladder 8.1a Interior 8.1b Pocket 8.2 Linear motor 8.2a Housing 8.2b Rotor 30 Control unit 32 Compressor with pressure reservoir 34 Pressure line 36 Power line 42 Pressure sensor 44 Sensor line 46 Seat cover

Claims

Motor vehicle seat (2) with massage function, wherein the motor vehicle seat (2) has a seat surface (6) and a backrest (4), wherein a plurality of massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) are arranged in the seat surface (6) and / or in the backrest (4), wherein the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) each have a massage bladder (8.1) that can be pressurized with a fluid and which increases in volume when filled with the fluid, thereby exerting pressure on a part of the body of a passenger sitting in the motor vehicle seat (2), wherein each of the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) a motor (8.2) is arranged, which is movable between a retracted position and an extended position, whereby increased pressure can be exerted on a part of the body of a passenger sitting in the motor vehicle seat (2) in the extended position, wherein at least one massage bladder (8.1) is sealed on the motor (8.2). Motor vehicle seat (2) according to claim 1 , characterized in that a control unit (30) is provided for controlling the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26). Motor vehicle seat (2) according to claim 1 or 2, characterized in that the motor is a linear motor (8.2). Motor vehicle seat (2) according to one of the preceding claims, characterized in that the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26) are arranged in a matrix in the seat surface (6) and / or the backrest (4). Motor vehicle seat (2) according to one of the preceding claims, characterized in that a pressure sensor (42) is arranged on at least one of the massage modules (8, 10, 12, 14, 16, 18, 20, 22, 24, 26). Motor vehicle seat (2) according to one of the preceding claims, characterized in that a pocket (8.1b) for the motor (8.2) is formed in at least one massage bladder (8.1). Motor vehicle seat (2) according to one of claims 2 to 6, characterized in that the control unit (30) is configured to control at least one motor (8.2) for transmitting information to the passenger. Motor vehicle seat (2) according to one of the preceding claims, characterized in that the fluid is air. Motor vehicle with at least one motor vehicle seat (2) according to any of the preceding claims.

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