CN219360888U - Headrest for vehicle seat and vehicle seat - Google Patents

Abstract

A headrest (20) for a vehicle seat (10) is provided, comprising a right side partial region (28) towards a right side head half (98) of a head (90) supported by the headrest (20) and a left side partial region (29) towards a left side head half (99) of the head (90). The headrest (20) further comprises a right speaker (23) arranged in a right partial region (28) and a left speaker (23) arranged in a left partial region (29), the speakers being arranged such that the orientation axes (83) of the right and left speakers (23) have an intersection within a head (90) supported by the headrest (20). The headrest (20) further comprises a right main microphone (22) arranged in the right partial region (28) and a left main microphone (22) arranged in the left partial region (29), the main microphones being arranged such that the orientation axes (82) of the right and left main microphones (22) have an intersection in front of the head (90), in particular in front of the mouth (92) of the head (90).

Description

Headrest for vehicle seat and vehicle seat

Technical Field

The present utility model relates to a headrest, in particular a neck support headrest, for a vehicle seat.

Background

Vehicles, particularly motor vehicles, typically have one or more seats for one or more occupants of the vehicle. In this case, the seat typically comprises a largely height-adjustable headrest which is configured, for example, to reduce the force acting on the neck spine of the occupant in the event of a crash.

In addition, vehicles often have an infotainment system, for example, configured to play audio in the passenger compartment of the vehicle and/or to implement telephone functions for occupants of the vehicle. In order to increase the comfort of a plurality of occupants in a vehicle, it is desirable to achieve listening to (possibly different) audio signals and/or making a call for individual occupants independently of one another.

Disclosure of Invention

The technical object to which the utility model relates is to provide a headrest by means of which the comfort of the vehicle occupants can be increased, in particular with regard to the individual playback of audio signals and/or the individual telephone call.

A headrest for a vehicle seat, in particular for a seat in a motor vehicle, for example in a passenger car, in a load-carrying truck, in a construction machine, or in a bus, or for a seat of a motorcycle, snowmobile, aircraft, train, watercraft, military vehicle or spacecraft is proposed. The headrest can be configured in particular as a neck support headrest. Furthermore, the headrest may be configured to support the head of a vehicle occupant in the event of a motor vehicle accident. The headrest can be configured as a separate component and/or can be removable or as an integrated component of the seat. Thus, the headrest may be an integral part of the seat (and fixedly connected with the seat).

The headrest includes a right side partial region facing a right side head half of a head supported by the headrest. In addition, the headrest includes a left partial region toward the left head half of the head. Here, the description of "right side" and "left side" preferably refers to the view angle of an occupant seated in a seat with a headrest. The headrest may have a central plane (the central plane being unfolded, for example, by the longitudinal and vertical axes of a vehicle in which the headrest is mounted). The center plane may divide the headrest into a right side portion region and a left side portion region. The center plane may be a symmetry plane of the headrest, such that the right-hand side part-area is configured symmetrically with respect to the left-hand side part-area (at least in terms of the appearance and/or in terms of the arrangement of the loudspeaker and the microphone).

The headrest includes a right speaker disposed in a right side portion area and a left speaker disposed in a left side portion area. The speakers may be arranged such that the orientation axis of the right speaker is directed towards the ear of the right head half and the orientation axis of the left speaker is directed towards the ear of the left head half. Here, the orientation axis of the loudspeaker may correspond to the main direction of the radiation characteristic of the loudspeaker.

Furthermore, the speakers of the headrest may be arranged such that the orientation axes of the right and left speakers have an intersection within the head supported by the headrest. The intersection point of the orientation axes may preferably lie in a central plane.

With this arrangement of the speakers, individual audio playback at the seat space of the vehicle can be achieved in a particularly efficient manner.

Further, the headrest includes a right-side main microphone disposed in the right-side portion region and a left-side main microphone disposed in the left-side portion region. The main microphones may be arranged such that the orientation axis of the right main microphone (outside the head) extends through the right head half and the orientation axis of the left main microphone (outside the head) extends through the left head half. Furthermore, the main microphones may be arranged such that the directional axes of the right and left main microphones have an intersection in front of the head, in particular in front of the mouth of the head. The intersection point of the orientation axes may preferably lie within the center plane. The directional axis of the microphone may correspond to a main direction of the directional characteristic of the microphone.

With this arrangement of the microphones, individual audio recordings at the seat space of the vehicle can be achieved in a particularly efficient manner. The headrest is thus particularly suitable for providing different audio intervals in a vehicle in relation to the seat space.

The headrest may be configured for a human head having a head circumference of between 50cm and 62cm and/or having a head length (along a vertical axis) of between 18cm and 25 cm. The characteristics described herein, in particular in terms of the directional axis of the speaker and/or microphone, are particularly satisfactory for human heads of this type.

The right main microphone may be further from the center plane than the right speaker, in particular compared to the center of the right speaker. In a corresponding manner, the left main microphone may be further from the center plane than the left speaker (in particular compared to the center of the left speaker). Thus, the directional axes of the primary microphones may be made to intersect in front of the head and the directional axes of the speakers may be made to intersect in the head in a particularly efficient and reliable manner.

As already explained above, the central plane may be the symmetry plane of the headrest. Thus, the right and left speakers may be arranged symmetrically with respect to the center plane. Furthermore, the right and left main microphones may be arranged symmetrically with respect to the center plane. Thus, the quality of the audio playback and/or audio recording may be further improved.

The primary microphone may be disposed below the speaker such that an orientation axis of the primary microphone extends below the orientation axis of the speaker at the headrest. The terms "below" and "above" refer here to the typical arrangement of a headrest in a vehicle. By this arrangement, the directional axes of the primary microphones and the directional axes of the loudspeakers intersect in the head in a particularly efficient and reliable manner.

The orientation axis of the loudspeaker may have an azimuth angle of between 32 ° and 36 ° or between 29 ° and 39 °, in particular 34 °, with respect to the center plane. Alternatively or additionally, the directional axis of the primary microphone may have an azimuth angle of between 26 ° and 30 ° or between 20 ° and 34 °, in particular 28 °, with respect to the central plane. The azimuth angle here preferably extends perpendicularly to the center plane of the headrest. By means of such an angle, the directional axes of the main microphones and the directional axes of the loudspeakers intersect in the head in a particularly efficient and reliable manner.

Reference herein to an angle without a decimal place is a rounded (integer) angle and thus may include all angles rounded (with a decimal place) to the corresponding integer.

The orientation axis of the loudspeaker may have a height angle of between-2 ° and +2° or between-10 ° and +10° with respect to an axis extending perpendicular to the stem of the headrest, in particular a height angle of 0 °. Alternatively or additionally, the orientation axis of the main microphone may have a height angle of between-18 ° and-14 ° or between-20 ° and-5 °, in particular-16 °, with respect to an axis extending perpendicular to the stem of the headrest. Here, an axis extending perpendicular to the rod of the headrest may be arranged within the center plane (and may correspond to a vertical axis of a vehicle to which the headrest is mounted). By means of such an angle, the directional axes of the main microphones and the directional axes of the loudspeakers intersect in the head in a particularly efficient and reliable manner.

The orientation axis of the loudspeakers of the right-hand partial region may have an angle of between-31 ° and-27 ° or between-30 ° and-10 °, in particular an angle of-29 °, with respect to the orientation axis of the main microphone of the right-hand partial region. Alternatively or additionally, the orientation axis of the loudspeakers of the left-hand partial region may have an angle of between-31 ° and-27 ° or between-30 ° and-10 °, in particular an angle of-29 °, with respect to the orientation axis of the main microphones of the left-hand partial region. By means of such an angle, the directional axes of the main microphones and the directional axes of the loudspeakers intersect in the head in a particularly efficient and reliable manner.

The headrest may have a right acoustic chamber provided with a right speaker in a right side section and a left acoustic chamber provided with a left speaker in a left side section. The right-hand acoustic chamber and the left-hand acoustic chamber can in particular be separated from each other by a separating wall. By providing separate acoustic chambers, the quality of the audio playback and/or audio recording may be further improved.

The headrest may have a front shell facing the head and a rear shell facing away from the head, the front and rear shells being interconnected at respective circumferential edges. Here, the two shells may form a cavity for arranging a loudspeaker and/or a microphone. Furthermore, the one or more acoustic cavities may be surrounded by the shell. Thus, a headrest that is particularly economical and stable can be provided.

The loudspeaker and/or the (main) microphone may be arranged in a particularly efficient manner on the front housing, in particular fixed to the front housing.

The front case may have a protection grill for protecting the right and left speakers, respectively. Thus, a particularly strong headrest can be provided.

Alternatively or additionally, the rear shell may have reinforcing ribs. Therefore, the firmness and the audio quality of the headrest can be further improved (because vibration of the headrest can be avoided).

The front shell may be covered with a continuous foam material. The foam material may here have a higher porosity at the location where the loudspeakers are arranged than at other locations of the front shell. Accordingly, the comfort of the headrest can be further improved in an efficient manner.

Preferably, the headrest is curved towards the head supported by the headrest (e.g. like a dart) such that the right side partial region extends at least partially along the right side head half and the left side partial region extends at least partially along the left side head half (in the direction from the rear side of the head to the front side of the head). The curve may be constructed in the form of a parabola if viewed from above. Accordingly, the speaker and the microphone can be arranged closer to the head, whereby the audio quality of the headrest can be further improved.

The headrest may include a right side auxiliary microphone disposed in the right side section area and a left side auxiliary microphone disposed in the left side section area. Here, the auxiliary microphone may be used for active noise reduction (Active Noise Cancelling, ANC), whereby the audio quality may be further improved. In particular, an audio interval associated with the seat can thereby be provided in an efficient and reliable manner.

The auxiliary microphones may be arranged such that the directional axis of the left auxiliary microphone extends into the right head half and the directional axis of the left auxiliary microphone extends into the left head half (e.g. above the respective ear). Furthermore, the auxiliary microphones may be arranged such that the orientation axis of the right auxiliary microphone and the orientation axis of the left auxiliary microphone have an intersection point in the head, in particular in the skull of the head. The intersection point here preferably lies within the center plane. The directional axis of the microphone may correspond to a main direction of the directional characteristic of the microphone.

By means of this arrangement of the auxiliary microphone, an ANC associated with the seat can be provided in a particularly efficient and reliable manner.

The orientation axis of the auxiliary microphone may have an azimuth angle of between 30 ° and 34 ° or between 25 ° and 39 ° or between 22 ° and 42 ° with respect to the center plane, in particular an azimuth angle of 32 °. Alternatively or additionally, the orientation axis of the auxiliary microphone may have a height angle of between 12 ° and 16 °, or between 7 ° and 21 °, or between 4 ° and 24 °, in particular a height angle of 14 °, with respect to an axis extending perpendicular to the stem of the headrest. Alternatively or additionally, the auxiliary microphone may be arranged above the speaker such that the orientation axis of the auxiliary microphone extends above the orientation axis of the speaker at the headrest. Thus, ANC may be provided at a seat having the headrest in a particularly efficient and reliable manner from microphone signals acquired by the auxiliary microphone.

The orientation axis of the speakers of the right-hand partial region may have an angle of between 20 ° and 24 °, between 17 ° and 27 °, between 15 ° and 29 °, between 15 ° and 25 °, or between 5 ° and 25 °, in particular an angle of 22 °, with respect to the orientation axis of the auxiliary microphone of the right-hand partial region. Alternatively or additionally, the orientation axis of the speakers of the left-hand partial region may have an angle of between 20 ° and 24 °, between 17 ° and 27 °, between 15 ° and 29 °, between 15 ° and 25 °, or between 5 ° and 25 °, in particular 22 °, with respect to the orientation axis of the auxiliary microphone of the left-hand partial region. Accordingly, ANC may be provided at a seat having the headrest in a particularly efficient manner from microphone signals acquired by the auxiliary microphone.

The headrest may be configured to receive audio signals for playback through a speaker via a wired communication connection and/or via a wireless communication connection (e.g., LAN, WLAN, or bluetooth). Alternatively or additionally, the headrest may be configured to transmit the microphone signal acquired by the primary microphone via a wired communication connection and/or via a wireless communication connection (e.g., LAN, WLAN, or bluetooth). Furthermore, the headrest may comprise a control unit (e.g. a microprocessor) arranged to determine an audio signal for playing through the speaker; and/or cause a microphone signal to be acquired by the primary microphone. Thus, a particularly comprehensive and efficient integration in the vehicle can be achieved.

As already set forth above, the headrest may have one or more rods configured to secure the headrest to the operator's seat. The one or more rods may be configured to house electrical energy supply lines and/or signal lines, particularly in the cavity of the one or more rods. Alternatively or additionally, the one or more rods may be configured to be directly conductive and/or to conduct signals. Thus, a particularly comprehensive and efficient integration in the vehicle can be achieved.

The headrest may be configured to vary the distance between the rods. This allows for a flexible adaptation of the headrest to different vehicle seats.

According to another aspect, a vehicle seat is presented. A vehicle seat may include a seating surface and a backrest. In addition, the vehicle seat may include a headrest as described herein, which may be secured to the backrest. The headrest can be integrated fixedly into the vehicle seat, in particular into the backrest.

Although not explicitly mentioned, the features described above can be combined with each other in various ways.

Drawings

Embodiments of the present utility model are described in detail below with reference to the drawings. Wherein:

FIG. 1 illustrates an example vehicle seat;

Figures 2a to 2d show different views of the headrest;

figures 3a to 3d show different views of the rear shell of the headrest;

fig. 4a to 4d show different views of the front shell of the headrest;

fig. 5a to 5b show exemplary orientation axes of a speaker and microphone of a headrest; and

fig. 6a to 6c show exemplary angles between the orientation axes of the speaker and microphone of the headrest.

Detailed Description

The described embodiments are not to be considered in all respects as limiting and only illustrative. For purposes of illustration, the embodiments have additional elements that are not important to the utility model. The scope of protection should be limited only by the attached claims.

The present utility model is thus directed to improving the comfort of vehicle occupants, especially in providing separate audio zones for different occupants in the vehicle. Fig. 1 shows an example vehicle seat 10 having a seating surface 11, a backrest 12, and a headrest 20 mechanically coupled to the backrest 12 by one or more rods 14. In the present utility model, a headrest 20 is described which is designed in particular to provide a separate audio zone at the vehicle seat 10 in the passenger compartment of the vehicle in a particularly efficient and reliable manner.

Fig. 2a to 2d show different views of the headrest 20, which may have a rear shell 25 and a front shell 21, wherein the front shell 21 faces the head 90 of an occupant sitting in the seat 10 with the headrest 20. The rear housing 25 is remote from the occupant's head 90. The front shell 21 and the rear shell 25 enclose a space in which one or more loudspeakers 23 and/or one or more microphones 22, 24 may be arranged.

Fig. 3a to 3d show different views of the rear housing 25, and fig. 4a to 4d show different views of the front housing 21. Fig. 5a to 5b and 6a to 6c also show preferred alignment axes of the loudspeaker 23 and the microphones 22, 24 of the headrest 20.

The headrest 20, particularly the front shell 21, preferably has an arcuate shape so that the headrest 20, particularly the front shell 21, conforms to the rear side of the occupant's head 90. For example, the headrest 20 may have a dart shape on the front side (in cross section) toward the head 90. Thus, a particularly comfortable support of the head 90 and neck of the occupant can be achieved. Furthermore, a particularly efficient and effective arrangement of the loudspeaker 23 and/or the microphones 22, 24 may be achieved.

The headrest 20 can be configured symmetrically with respect to a vertically extending symmetry plane 19, wherein the symmetry plane 19 is unfolded by a longitudinal axis (i.e. x-axis) and by a vertical axis (i.e. z-axis) (see fig. 2 c). The longitudinal axis of the headrest 20 may correspond to the longitudinal axis of the vehicle in which the headrest 20 is located. The vertical axis of the headrest 20 may correspond to the vertical axis of the vehicle in which the headrest 20 is located. The vertically extending symmetry plane 19 may be arranged such that the symmetry plane 19 divides the occupant's head 90 into two (substantially) symmetrical head halves 98, 99, a left head half 99 (with a left ear 93) and a right head half 98 (with a right ear 93).

Thus, the headrest 20 may have a right-hand partial region 28 and a left-hand partial region 29, which are configured symmetrically (at least externally) with respect to the vertically extending plane of symmetry 19. In this case, the right-hand partial region 28 faces the right-hand head half 98 and the left-hand partial region 29 faces the left-hand head half 99. Reference is made herein to the "right side" and "left side" of an occupant seated in a vehicle seat 10 having a headrest 20 as described herein.

In the example shown in the figures, the headrest 20 comprises (at least) two speakers 23, a right speaker 23 in a right partial region 28 of the headrest 20 and a left speaker 23 in a left partial region 29 of the headrest 20. The individual loudspeakers 23 here each have a defined directional axis 83. The orientation axis 83 of the loudspeaker 23 may correspond to a spatial orientation axis perpendicular to a line of the membrane of the respective loudspeaker 23. Alternatively or additionally, the directional axis 83 may correspond to a main output direction of the audio signal emitted by the respective speaker 23 and/or a main direction of the radiation characteristic.

The right speaker 23 may be directed toward the right ear 93 of the occupant's head 90, and the left speaker 23 may be directed toward the left ear 93 of the occupant's head 90. Alternatively or additionally, the right and left speakers 23 may be oriented such that the orientation axes 83 of the two speakers 23:

Intersecting along a vertical axis (that is to say the z-axis) at the height of the ear 93 and/or eye 91 of the head 90;

intersecting on a plane of symmetry 19 along a transverse axis (that is to say the y-axis); and/or

Intersecting within the head 90 (e.g., in the mouth) along the longitudinal axis (i.e., x-axis).

Thus, a particularly comfortable, individual audio play can be achieved for the occupant.

Furthermore, the headrest 20 may comprise (at least) two primary microphones 22, in particular a right primary microphone 22 in a right partial region 28 and a left primary microphone 22 in a left partial region 29. Along the vertical axis (that is to say the z-axis), the main microphone 22 can be arranged in the respective partial region 28, 29 below the respective loudspeaker 23, for example at the level of the mouth 92 of the head 90. Alternatively or additionally, the primary microphone 22 may be further from the plane of symmetry 19 than the corresponding speaker 23. Thus, it is achieved in an efficient and reliable manner that the audio signal emitted by the occupant through the mouth 92 (e.g., for a conversation) is acquired by the primary microphone 22.

The main microphones 22 each have a directional axis 82, wherein the directional axis 82 of the main microphone 22 may correspond to a main direction of the directional feature of the main microphone 22. The directional axes 82 of the primary microphones 22 may be arranged such that the directional axes 82 of the two primary microphones 22:

Intersecting along a vertical axis (that is to say the z-axis) at the height of the mouth 92 of the head 90 (or slightly below the mouth);

intersecting on a plane of symmetry 19 along a transverse axis (that is to say the y-axis); and/or

Intersect along the longitudinal axis (that is to say the x-axis) in front of the head 90 (in particular in front of the mouth 92).

Thus, the audio signal spoken by the occupant can be acquired in a particularly efficient and reliable manner.

Furthermore, the headrest 20 may have (at least) two auxiliary microphones 24, in particular a right auxiliary microphone 24 in a right partial region 28 and a left auxiliary microphone 24 in a left partial region 29. Along the vertical axis (that is to say the z-axis), the auxiliary microphone 24 can be arranged in the respective partial region 28, 29 above the respective loudspeaker 23, for example at the level of the forehead of the head 90. Alternatively or additionally, the auxiliary microphone 24 may be arranged at the same distance from the plane of symmetry 19, or closer to the plane of symmetry 19, than the corresponding speaker 23. Thus, it may be achieved in an efficient and reliable manner that the interference noise around the ears 93 of the occupant's head 90 is captured by the auxiliary microphone 24, for example, for providing active noise reduction for the occupant.

The auxiliary microphones 24 each have a directional axis 84, wherein the directional axis 84 of the auxiliary microphone 24 may correspond to the main direction of the directional characteristic of the auxiliary microphone 24. The directional axes 84 of the auxiliary microphones 24 may be arranged such that the directional axes 84 of the two auxiliary microphones 24:

intersecting above the ear 93 of the head 90 along a vertical axis (that is to say the z-axis);

intersecting on a plane of symmetry 19 along a transverse axis (that is to say the y-axis); and/or

Intersect within the head 90 along a longitudinal axis (that is, the x-axis), such as within the cranium of the head 90.

Thus, the disturbance signal on the vehicle seat 10 can be acquired in a reliable manner to provide active noise reduction (ANC) alone.

In fig. 2b, for example, a front view position 80 of the head 90 of the occupant is shown, which extends, for example, parallel to the longitudinal axis (that is to say the x-axis). As can be seen from the view of figure 2b,

the orientation axis 83 of the loudspeaker 23 extends upwards and thereby forms a positive angle with respect to the front view position 80; and/or

The orientation axis 82 of the primary microphone 22 extends downwards and thereby forms a negative angle with respect to the positive viewing position 80; and/or

The orientation axis 84 of the auxiliary microphone 24 extends upward and thus forms a positive angle with respect to the front view position 80. Here, the angle may be greater than the angle of the orientation axis 83 of the speaker 23.

Exemplary angles for orienting the axes 82, 83, 84 are shown in fig. 5a to 6 c. The angle may be relative to the direction of the one or more rods 14 (which may correspond to a vertical axis, that is to say a z-axis, for example). Alternatively or additionally, the angle may be relative to the forward direction 80.

In fig. 6b, an exemplary angle (in particular elevation) with respect to an axis 60 extending perpendicular to the rod 14 is illustrated.

In particular, fig. 6b shows:

an angle 65 of the orientation axis 82, which may be, for example, -16.39 ° (e.g., between-19 ° and-14 °); in a likewise advantageous example, the angle 65 of the orientation axis 82 may be in a greater range between-20 ° and-5 °; and/or

An angle 64 of the orientation axis 83, which may be, for example, 0 ° (e.g., between-2 ° and 2 °); in a likewise advantageous example, the angle 64 of the orientation axis 83 may be in a greater range between-10 ° and +10°; and/or

The angle 66 of the orientation axis 84, which may be, for example, 14.07 ° (e.g., between 12 ° and 17 °). In a likewise advantageous example, the angle 66 of the orientation axis 84 may be in a greater range between 7 ° and 21 ° or between 4 ° and 24 °.

It should be noted that the auxiliary microphone 24 may have a spherical character accordingly. In this case, the orientation of the auxiliary microphone 24 may be de-defined.

In fig. 6c, an example angle (in particular azimuth) is illustrated with respect to a direction perpendicular to the elevation direction 80 or with respect to the longitudinal or x-axis (in particular within a horizontal plane spanned by the y-axis and the x-axis). In particular, fig. 6c shows:

an angle 67 of the orientation axis 82, which may be, for example, 27.9 ° (e.g., between 25 ° and 30 °); in a likewise advantageous example, the angle 67 of the orientation axis 82 may be in a greater range between 20 ° and 34 °; and/or

An angle 69 of the orientation axis 83, which may be, for example, 33.96 ° (e.g., between 31 ° and 36 °); in a likewise advantageous example, the angle 69 of the orientation axis 83 may be in a greater range between 29 ° and 39 ° (in particular for a loudspeaker 23 having a diameter of 100 mm); and/or

An angle 68 of the orientation axis 84, which may be, for example, 31.9 ° (e.g., between 29 ° and 34 °); in a likewise advantageous example, the angle 68 of the orientation axis 84 may be in a greater range between 25 ° and 39 ° or between 22 ° and 42 °.

In fig. 6a, exemplary angles between the orientation axes 82, 83, 48 are shown, in particular:

the angle 62 between the orientation axes 82 and 83, which may be, for example, -29.05 ° (e.g., between-32 ° and-27 °); in a likewise advantageous example, the angle 62 may be in a greater range between-30 ° and-10 °; and/or

An angle 63 between the orientation axes 83 and 84, which may be, for example, 21.94 ° (e.g., between 20 ° and 24 °); in equally advantageous examples, the angle 63 may be in a larger range between 17 ° and 27 °, between 15 ° and 29 °, between 15 ° and 25 °, or between 5 ° and 25 °.

The orientation axis 83 of the speaker 23 may have an angle of 0 ° to an axis 60 perpendicular to the one or more rods 14. In an advantageous example, the angle may be, for example, between-10 ° and +10°, in particular between-2 ° and +2°. This may apply to the height angle. The azimuth angle may be between 29 ° and 39 °.

As described above, the headrest 20 may include a rear shell 25 that is connected to a corresponding edge 46 of the front shell 21 by an edge 34. The speaker 23 and microphones 22, 24 may be fixed to the front case 21. The front shell 21 may have a bridge 47 which is supported on a corresponding seat 33 of the rear shell 25 to establish a stable connection of the two shells 21, 25. The respective abutment 33 and bridge 47 may be bolted or glued to each other.

The rear shell 25 may have a support and/or reinforcement grid 31 by which the rigidity of the headrest 20 may be increased. Further, the rear shell 25 may have a securing element 32 for the one or more rods 14 of the headrest 20. The fixing elements 32 may be arranged in the space enclosed by the shells 21, 25, and the rear shell 25 may (on the underside) have openings 35 for the one or more rods 14, through which openings the one or more rods 14 may be guided to the respective one or more fixing elements 32.

The rear housing 25 and/or the front housing 21 may each have a separating wall 37, 45 configured to divide the cavity enclosed by the housings 21, 25 into a right-hand partial chamber (within the right-hand partial region 28) and a left-hand partial chamber (within the left-hand partial region 29). The separating walls 37, 45 may be arranged in the symmetry plane 19, respectively. Thereby, right and left acoustic chambers that are acoustically separated from each other by the separation walls 37, 45 can be provided. Here, the right speaker 23 and the one or more right microphones 22, 24 may be arranged in the right acoustic chamber. The left speaker 23 and the one or more left microphones 22, 24 may be arranged in a left acoustic chamber. Accordingly, the audio quality of the headrest 20 can be further improved.

As shown in fig. 4a to 4d, the front shell 21 may have an opening 42 for the primary microphone 22 and/or an opening 44 for the secondary microphone 24. Furthermore, the front housing 21 may have openings for the speakers 23, wherein the openings may be covered by a protective grille 43 for protecting the respective speakers 23, respectively.

Thus, a headrest 20, and in particular a neck support pillow, is described. The neck support pillow 20 may have at least two speakers 23. Here, the speaker 23 may:

A membrane diameter of 100mm (e.g. between 60mm and 110 mm); the required installation space can be reduced by reducing the diameter;

have a broad radiation band;

having a metal membrane;

bunching to achieve high frequencies (e.g. by using a special membrane design (made of metal));

oriented in an angled manner such that the speaker 23 is oriented directly towards the occupant's ear 93;

tilt toward the center of the neck support pillow 20; and/or

Has an angular orientation in the z-direction so that the speaker 23 is tilted slightly upward or downward.

Furthermore, the neck support pillow 20 may have at least two (primary) microphones 22, in particular for making a telephone call. Here, a digital signal processing section may be used. Digital signal processing may be performed by the control unit 50 of the neck support pillow 20. The (main) microphone 22 may have an externally located position on the neck support pillow 20, in particular for optimized voice recording.

The neck support pillow 20 may furthermore optionally have an additional (auxiliary) microphone 24, in particular for ANC. Here, the (auxiliary) microphone 24 may have an internal position above the speaker 23. A combination of the primary and secondary microphones 22, 24 is also possible. The microphones 22, 24 are preferably integrated in the front housing 21. An algorithm for providing ANC may be run by the control unit 50.

The speakers 23 are preferably arranged in a protected manner behind the respective grille 43. The grille 43 can be designed in particular for an optimized signal transmission of the loudspeaker 23 (for influencing the audio signal only slightly). The grille 43 may be configured to protect the speaker 23 from damage.

Preferably, the neck support pillow 20 has a multi-piece (especially two-piece) shell design. Furthermore, the neck support pillow 20 preferably forms an acoustic enclosure. The two shells 21, 25 can be bolted to each other.

In order to be able to surround the head 90 and to position the speaker 23 closer to the ears 93 of the head 90, the neck support pillow 20 preferably has a shape that curves around the head 90. Thus, in order to be able to emit sound directly to the ears 93, the speakers 23 are preferably arranged in the curved portion or in the curved portion of the neck support pillow 20. For acoustic reasons, the neck support pillow 20 preferably has a profile without edges and corners.

The one or more shells 21, 25, in particular the front shell 21, may be made of plastic (or foam). Alternatively, the rear case 25 may be implemented to have foam and fabric (Stoff). The neck support pillow 20 may have a foam piece as a head support. Furthermore, the neck support pillow 20 typically has a stem 14 for seat assembly. The one or more rods 14 may be configured for guiding a cable. For this purpose, the rod 14 may be configured hollow. Alternatively or additionally, the one or more rods 14 may be configured to be directly conductive and/or to conduct signals.

For optimal bass response, a resonant cavity may preferably be formed in the neck support pillow 20. The neck support pillow 20, and in particular the rear shell 25, may have stiffening ribs 31 for avoiding structural vibrations. Furthermore, the neck support pillow 20 may have a separating bridge 37, 45 between the two speaker volumes. This is advantageous in particular for loudspeakers 23 with soft suspensions.

The fixing elements 32 of the bars 14 enable a variable distance between the bars 14. Thus, a mechanically flexible assembly of the lever for a simple adaptation to different vehicle seats 10 can be achieved.

The neck support pillow front side is preferably covered with fabric. The fabric can be assembled in a seam having a corresponding roller edge (Keder), which allows for efficient replacement of the fabric.

The foam piece on the front side is preferably continuous. In order to achieve an optimized acoustic transmission, different foam porosities can be arranged in front of the loudspeaker 23.

A decorative edge (Keder) and/or a binding band (pasplaeband) may be provided between the two neck support halves 21, 25 as design elements.

Optionally, electronics for operating the speaker and microphone (including bluetooth/wireless connection) may be integrated in the neck support pillow 20 (e.g., as part of the control unit 50).

The above description of embodiments has many details which are not important to the summary of the utility model defined by the claims. The description of the embodiments is intended to be illustrative of the utility model and should not be taken as limiting the scope of protection. Those skilled in the art will recognize that the elements and their technical effects may be combined with each other in various ways to obtain other embodiments covered by the claims.

Claims (45)

1. A headrest (20) for a vehicle seat (10); wherein the headrest (20) comprises:

-a right side partial region (28) facing a right side head half (98) of a head (90) supported by the headrest (20);

-a left partial region (29) facing a left head half (99) of the head (90);

-a right-hand speaker arranged in the right-hand partial region (28) and a left-hand speaker arranged in the left-hand partial region (29), the speakers being arranged such that

-the orientation axis of the right speaker is directed towards the ear of the right head half (98) and the orientation axis of the left speaker is directed towards the ear of the left head half (99); and is also provided with

-the orientation axis of the right speaker and the orientation axis of the left speaker have an intersection within a head (90) supported by the headrest (20);

and

-a right-hand main microphone arranged in the right-hand partial region (28) and a left-hand main microphone arranged in the left-hand partial region (29), the main microphones being arranged such that

-the directional axis of the right main microphone extends through the right head half (98) and the directional axis of the left main microphone extends through the left head half (99); and is also provided with

-the directional axis of the right main microphone and the directional axis of the left main microphone have an intersection point in front of the head (90).

2. Headrest (20) for vehicle seat (10) according to claim 1, wherein the orientation axis of the right main microphone and the orientation axis of the left main microphone have an intersection in front of the mouth (92) of the head (90).

3. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein

-the headrest (20) has a central plane (19) dividing the headrest (20) into the right-hand side partial region (28) and the left-hand side partial region (29);

-the right main microphone is further from the centre plane (19) than the right speaker; and is also provided with

-the left main microphone is further from the centre plane (19) than the left speaker.

4. The headrest (20) for a vehicle seat (10) as claimed in claim 3 wherein

-the right and left speakers are arranged symmetrically with respect to the centre plane (19); and is also provided with

-the right and left primary microphones are arranged symmetrically with respect to the centre plane (19).

5. The headrest (20) for a vehicle seat (10) as claimed in claim 3 wherein

-the intersection of the orientation axis of the right speaker and the orientation axis of the left speaker is located in the center plane (19); and/or

-the intersection of the directional axis of the right main microphone and the directional axis of the left main microphone is located in the central plane (19).

6. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein the left main microphone is arranged below the left speaker such that the orientation axis of the left main microphone extends below the orientation axis of the left speaker at the headrest (20); and the right main microphone is arranged below the right speaker such that an orientation axis of the right main microphone extends below an orientation axis of the right speaker at the headrest (20).

7. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein

-the orientation axis of the left speaker and the orientation axis of the right speaker have an azimuth angle of between 29 ° and 39 ° with respect to a central plane (19) of the headrest (20) dividing the headrest (20) into the right-side partial region (28) and the left-side partial region (29), respectively; and/or

-the directional axis of the left main microphone and the directional axis of the right main microphone each have an azimuth angle of between 20 ° and 34 ° with respect to the central plane (19).

8. Headrest (20) for a vehicle seat (10) according to claim 7, wherein the orientation axis of the left speaker and the orientation axis of the right speaker have an azimuth angle of 34 ° with respect to a central plane (19) of the headrest (20) dividing the headrest (20) into the right-side partial region (28) and the left-side partial region (29), respectively.

9. Headrest (20) for vehicle seats (10) according to claim 7, wherein the orientation axis of the left main microphone and the orientation axis of the right main microphone each have an azimuth angle of 28 ° with respect to the central plane (19).

10. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein

-the orientation axis of the left speaker and the orientation axis of the right speaker each have a height angle between-10 ° and +10° with respect to an axis (60) extending perpendicular to the stem of the headrest (20); and/or

-the orientation axis of the left main microphone and the orientation axis of the right main microphone each have a height angle between-20 ° and-5 ° with respect to an axis (60) extending perpendicular to the stem of the headrest (20).

11. The headrest (20) for a vehicle seat (10) according to claim 10, wherein the orientation axis of the left speaker and the orientation axis of the right speaker each have a height angle of 0 ° with respect to an axis (60) extending perpendicular to a rod of the headrest (20).

12. The headrest (20) for a vehicle seat (10) according to claim 10, wherein the orientation axis of the left side main microphone and the orientation axis of the right side main microphone each have a height angle of-16 ° with respect to an axis (60) extending perpendicular to a stem of the headrest (20).

13. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein

-the orientation axis of the right speaker of the right partial area (28) has an angle between-30 ° and-10 ° with respect to the orientation axis of the right main microphone of the right partial area (28); and/or

-the orientation axis of the left speaker of the left partial area (29) has an angle between-30 ° and-10 ° with respect to the orientation axis of the left main microphone of the left partial area (29).

14. The headrest (20) for a vehicle seat (10) according to claim 13, wherein the orientation axis of the right speaker of the right partial region (28) has an angle of-29 ° relative to the orientation axis of the right main microphone of the right partial region (28).

15. Headrest (20) for vehicle seat (10) according to claim 13, wherein the orientation axis of the left speaker of the left partial area (29) has an angle of-29 ° with respect to the orientation axis of the left main microphone of the left partial area (29).

16. Headrest (20) for vehicle seat (10) according to claim 1 or 2, wherein

-the headrest (20) has a right-hand acoustic chamber provided with a right-hand speaker in the right-hand partial region (28) and a left-hand acoustic chamber provided with a left-hand speaker in the left-hand partial region (29); and is also provided with

-the right and left acoustic chambers are separated from each other.

17. The headrest (20) for a vehicle seat (10) according to claim 16, wherein the right and left acoustic chambers are separated from each other by a separation wall.

18. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) has a front shell (21) facing the head (90) and a rear shell (25) facing away from the head (90), which are connected to each other on respective circumferential edges.

19. Headrest (20) for vehicle seat (10) according to claim 18, wherein the left and right loudspeakers, and/or the left and right main microphones are arranged on the front shell (21).

20. Headrest (20) for vehicle seat (10) according to claim 19, wherein the left and right loudspeakers, and/or the left and right main microphones are fixed on the front shell.

21. Headrest (20) for vehicle seats (10) according to claim 18, wherein the front shell (21) has a protection grille (43) for protecting the right and left loudspeakers, respectively.

22. Headrest (20) for vehicle seats (10) according to claim 18, wherein the rear shell (25) has stiffening ribs (31).

23. The headrest (20) for a vehicle seat (10) according to claim 18, wherein,

-the front shell (21) is covered by a continuous foam material; and is also provided with

-the foam material has a higher porosity on the locations where the left and right speakers are arranged relative to the locations of the front shell (21) where the left and right speakers are not arranged.

24. Headrest (20) for vehicle seats (10) according to claim 18, wherein a roller and/or a binding is arranged at the encircling edge between the front shell (21) and the rear shell (25).

25. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) is bent towards a head (90) supported by the headrest (20) such that the right-hand partial region (28) extends at least partially along a right-hand head half (98) and the left-hand partial region (29) extends at least partially along a left-hand head half (99).

26. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) comprises a right auxiliary microphone arranged in the right partial region (28) and a left auxiliary microphone arranged in the left partial region (29), the auxiliary microphones being arranged such that

-the directional axis of the left auxiliary microphone extends into the right head half (98) and the directional axis of the right auxiliary microphone extends into the left head half (99); and is also provided with

-the directional axis of the right auxiliary microphone and the directional axis of the left auxiliary microphone have an intersection point in the head (90).

27. The headrest (20) for a vehicle seat (10) according to claim 26, wherein the orientation axis of the right side auxiliary microphone and the orientation axis of the left side auxiliary microphone have an intersection in the cranium of the head (90).

28. The headrest (20) for a vehicle seat (10) as claimed in claim 26 wherein

-the orientation axis of the left auxiliary microphone and the orientation axis of the right auxiliary microphone have an azimuth angle of between 22 ° and 42 ° with respect to a central plane (19) of a headrest (20) dividing the headrest (20) into the right-side partial region (28) and the left-side partial region (29), respectively; and/or

-the orientation axis of the left auxiliary microphone and the orientation axis of the right auxiliary microphone each have a height angle of between 4 ° and 24 ° with respect to an axis (60) extending perpendicular to the stem of the headrest (20).

29. The headrest (20) for a vehicle seat (10) according to claim 28, wherein the orientation axis of the left side auxiliary microphone and the orientation axis of the right side auxiliary microphone have an azimuth angle of 32 ° with respect to a center plane (19) of the headrest (20) dividing the headrest (20) into the right side portion region (28) and the left side portion region (29), respectively.

30. The headrest (20) for a vehicle seat (10) according to claim 28, wherein the orientation axis of the left side auxiliary microphone and the orientation axis of the right side auxiliary microphone each have a height angle of 14 ° with respect to an axis (60) extending perpendicular to the stem of the headrest (20).

31. The headrest (20) for a vehicle seat (10) according to claim 26, wherein the left auxiliary microphone is arranged above the left speaker such that an orientation axis of the left auxiliary microphone extends above an orientation axis of the left speaker at the headrest (20); and the right auxiliary microphone is arranged above the right speaker such that an orientation axis of the right auxiliary microphone extends above an orientation axis of the right speaker at the headrest (20).

32. The headrest (20) for a vehicle seat (10) according to claim 26, wherein,

-the orientation axis of the right speaker of the right partial area (28) has an angle between 5 ° and 25 ° with respect to the orientation axis of the right auxiliary microphone of the right partial area (28); and/or

-the orientation axis of the left speaker of the left partial area (29) has an angle between 5 ° and 25 ° with respect to the orientation axis of the left auxiliary microphone of the left partial area (29).

33. The headrest (20) for a vehicle seat (10) according to claim 32, wherein the orientation axis of the right speaker of the right partial region (28) has an angle of 22 ° relative to the orientation axis of the right auxiliary microphone of the right partial region (28).

34. The headrest (20) for a vehicle seat (10) according to claim 32, wherein the orientation axis of the left speaker of the left partial area (29) has an angle of 22 ° with respect to the orientation axis of the left auxiliary microphone of the left partial area (29).

35. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) is configured,

-receiving audio signals for playback through the left and right speakers via a wired communication connection and/or via a wireless communication connection; and/or

-transmitting microphone signals acquired by the left and right main microphones via a wired communication connection and/or via a wireless communication connection.

36. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) comprises a control unit (50) which is set up to,

-determining audio signals for playback through the left and right speakers; and/or

-causing a microphone signal to be acquired by the left and right primary microphones.

37. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) has one or more bars configured to fix the headrest (20) on a vehicle seat (10).

38. The headrest (20) for a vehicle seat (10) according to claim 37, wherein,

-the one or more bars are configured to house electrical energy supply lines and/or signal lines; and/or

-the one or more rods are configured to be directly electrically conductive and/or to conduct signals.

39. The headrest (20) for a vehicle seat (10) according to claim 38, wherein said one or more rods are configured to receive an electrical energy supply line and/or a signal line in a cavity of said one or more rods.

40. The headrest (20) for a vehicle seat (10) according to claim 37, wherein,

-the headrest (20) has a plurality of rods; and is also provided with

-the headrest (20) is configured to be able to vary the distance between the bars.

41. The headrest (20) for a vehicle seat (10) according to claim 40, wherein said headrest (20) has two rods.

42. Headrest (20) for a vehicle seat (10) according to claim 1 or 2, wherein the headrest (20) is configured for a human head (90) having a head circumference of between 50cm and 62cm and/or having a head length of between 18cm and 25 cm.

43. A vehicle seat (10), wherein the vehicle seat (10) comprises:

-a seating surface (11) and a backrest (12); and

-a headrest (20) for a vehicle seat (10) according to any one of claims 1 to 42 fixed on the backrest (12).

44. The vehicle seat (10) of claim 43, wherein the headrest (20) is integrated into the vehicle seat (10).

45. The vehicle seat (10) of claim 44, wherein the headrest (20) is integrated into the backrest (12).