CN117082401A - Sound system for seat and vehicle seat - Google Patents

Abstract

The utility model provides a sound system for a seat and a vehicle seat, and relates to the technical field of vehicles, wherein the sound system for the seat comprises: a speaker having a sound emitting face; the sound outlet surface is connected with a sound channel structure for sound transmission; the sound channel structure is provided with a first sound transmission channel; the voice throat is provided with a voice inlet, a voice outlet and a second sound transmission channel communicated with the voice inlet and the voice outlet; the sound inlet is communicated with one end, far away from the sound outlet surface, of the first sound transmission channel; sound emitted by the loudspeaker enters the second sound transmission channel from the first sound transmission channel and is output from the sound outlet; a guide structure is arranged at the periphery of the sound outlet; the guide structure is used for limiting the sound output by the sound outlet to propagate along the set direction. The sound system can lead the sound output by the sound outlet to directionally propagate, thereby not only avoiding disturbing surrounding people, but also protecting the privacy of users and improving the comfort level of use.

Description

Sound system for seat and vehicle seat

Technical Field

The utility model relates to the technical field of vehicles, in particular to a sound system for a seat and a vehicle seat.

Background

With the improvement of the living standard of people, the requirements of passengers on the riding comfort of the vehicle are also higher and higher, the performance of the vehicle seat is one of key factors related to the riding comfort of the passengers, and the vehicle seat is particularly important for relieving the fatigue of drivers and passengers.

In recent years, there has been a vehicle seat equipped with an acoustic system on the market, for example, an utility model patent of an issued bulletin number CN111319560B, which discloses a vehicle seat headrest equipped with an acoustic speaker unit, and specifically discloses a vehicle seat headrest equipped with a speaker system, and the position and direction of the speaker are adjustable so that a passenger can hear sounds emitted by the speaker in an optimal manner; another patent issued to CN217532735U, for example, discloses a car seat with a shoulder sound, and specifically discloses a sound system installed on the shoulder of the backrest of the car seat to provide music for the occupant sitting in the seat independently, and to provide a personalized music experience while ensuring comfortable driving of the occupant.

However, the speakers of the above-described acoustic system mounted on the vehicle seat cannot transmit sound to the head of the occupant sitting on the vehicle seat, that is, the sound transmitted by the acoustic system on the current vehicle seat may be received by other occupants, which may be disturbed on the one hand, and the privacy of the occupant may not be protected on the other hand.

Disclosure of Invention

The present utility model has been made in view of the above problems, and an object of the present utility model is to provide a seat sound system and a vehicle seat.

In a first aspect, the present utility model provides a sound system for a seat, comprising:

a speaker having a sound emitting face; the sound outlet surface is connected with a sound channel structure for sound transmission; the sound channel structure is provided with a first sound transmission channel;

the voice throat is provided with a voice inlet, a voice outlet and a second sound transmission channel communicated with the voice inlet and the voice outlet; the sound inlet is communicated with one end, far away from the sound outlet surface, of the first sound transmission channel; sound emitted by the loudspeaker enters the second sound transmission channel from the first sound transmission channel and is output from the sound outlet; a guide structure is arranged at the periphery of the sound outlet; the guide structure is used for limiting the sound output by the sound outlet to propagate along the set direction.

According to some embodiments of the present utility model, the guide structure includes two first guide portions disposed at two sides of the sound outlet; the two first guide parts are far away from the connecting line of the outermost edge of the sound outlet and the center point of the sound inlet to form a first included angle; the first included angle is an acute angle.

According to some embodiments of the present utility model, the guide structure further includes second guide portions disposed on sides of the two first guide portions away from the speaker; the second guide part extends towards the opening direction of the first included angle.

According to the technical scheme provided by certain embodiments of the utility model, the throat is arranged on a pedestal; the pedestal is provided with a first sound transmission through hole; the first sound transmission channel is connected with one end of the first sound transmission through hole, which is close to the loudspeaker; the second sound transmission channel is communicated with one end of the first sound transmission through hole, which is far away from the loudspeaker;

an outer cover is also arranged on the pedestal; the outer cover is arranged outside the throat; the outer cover, the pedestal and the guide structure jointly enclose to form a first chamber; the position of the outer cover corresponding to the first cavity is a first sound field area; the first sound field area is provided with a sound outlet communicated with the first cavity; and after the sound output by the sound outlet propagates to the first cavity, the sound is output by the sound outlet.

According to the technical scheme provided by certain embodiments of the utility model, the pedestal is also provided with a separation structure; the separation structure, the outer cover and the pedestal are enclosed together to form a second chamber; the position of the outer cover corresponding to the second cavity is a second sound field area; the second sound field area is provided with a sound receiving hole communicated with the second cavity; a radio part is arranged in the second chamber; the sound receiving piece is used for receiving sound of the surrounding environment through the sound receiving Kong Shequ;

the sound system further comprises a control module, wherein the control module is used for processing surrounding environment sounds picked up by the sound receiving piece to obtain noise elimination sound signals corresponding to the surrounding environment sounds; the control module is also configured to transmit the noise canceled sound signal to the speaker.

According to the technical scheme provided by certain embodiments of the utility model, a sound insulation chamber is arranged between the first chamber and the second chamber; the sound insulation cavity is filled with a filler for isolating sound.

According to some embodiments of the present utility model, the sound system further includes a mounting base; an accommodating chamber is formed in the mounting seat; the loudspeaker is arranged in the accommodating cavity; a second sound transmission through hole communicated with the accommodating cavity is formed in one side, close to the sound outlet surface, of the mounting seat; the second sound transmission through hole is communicated with one end, far away from the throat, of the first sound transmission channel.

According to some embodiments of the utility model, the length of the first sound transmission channel is adjustable.

In a second aspect, the present utility model provides a vehicle seat comprising a backrest and a headrest, wherein the two sides of the shoulder portion of the backrest are symmetrically provided with the sound system for the seat as described above; the sound propagation directions of the two sound systems are converged in the right front of the vehicle seat.

According to certain embodiments of the present utility model, the backrest comprises foam and a frame; the sound system for the seat is fixedly connected with the framework.

Compared with the prior art, the utility model has the beneficial effects that: according to the sound system for the seat, the tail end of the sound channel structure connected with the sound outlet surface of the loudspeaker is connected with the sound throat, and the guide structure is arranged on the periphery of the sound outlet of the sound throat, so that when sound played by the loudspeaker is output from the sound outlet, the guide structure can limit the sound to propagate along the set direction, namely, the sound can be directionally transmitted to the head of a user, the sound output by the sound system is prevented from being received by other surrounding people, the interference to surrounding people is avoided, the personal privacy of the user is protected, and the comfort level of the user is improved.

Drawings

Fig. 1 is an exploded view of a sound system for a seat according to embodiment 1 of the present utility model;

fig. 2 is an external schematic diagram of a sound system for a seat according to embodiment 1 of the present utility model;

fig. 3 is a schematic diagram of the built-in structure of a sound system for a seat according to embodiment 1 of the present utility model;

fig. 4 is a schematic view illustrating a first view angle of a throat of a seat audio system according to embodiment 1 of the present utility model;

fig. 5 is a schematic diagram of a second view angle of a throat of a seat audio system according to embodiment 1 of the present utility model;

fig. 6 is a schematic structural diagram of an enclosure of a seat audio system according to embodiment 1 of the present utility model;

fig. 7 is a schematic view of environmental noise reduction of a seat audio system according to embodiment 1 of the present utility model;

fig. 8 is a schematic diagram illustrating an assembly of an external structure and an internal structure of a sound system for a seat according to embodiment 1 of the present utility model;

fig. 9 is a schematic front view of a vehicle seat according to embodiment 2 of the present utility model;

fig. 10 is a schematic top view of a vehicle seat according to embodiment 2 of the present utility model;

fig. 11 is a schematic cross-sectional structure of a vehicle seat provided in embodiment 2 of the present utility model;

fig. 12 is a schematic view showing an internal structure of a vehicle seat according to embodiment 2 of the present utility model.

The text labels in the figures are expressed as:

1. an acoustic system; 11. an outer cover; 111. a first acoustic field region; 112. a second acoustic field region; 113. a partition structure; 114. a sound shielding area; 12. a throat; 121. a first guide part; 122. a second guide part; 13. a pedestal; 131. a first channel subsection; 14. a base; 141. a second channel subsection; 15. a speaker; 16. a cover plate; 17. a radio; 18. a control module;

2. a vehicle seat; 21. a backrest; 211. soaking cotton; 212. a skeleton; 22. a headrest.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1, the present embodiment provides a sound system for a seat, which can be mounted on a vehicle seat, a massage seat, and the like, for improving the comfort of a user. The sound system comprises a housing 11, a throat 12, a pedestal 13, a base 14, a speaker 15 and a cover plate 16; as shown in fig. 2, the housing 11, the throat 12 and the base 13 together form an external structure, and as shown in fig. 3, the base 14, the speaker 15 and the cover 16 together form an internal structure; when the audio system is mounted on a seat, the internal structure is typically mounted on the interior of the seat and the external structure is typically mounted on the exterior of the seat.

The speaker 15 is a sound source of an acoustic system, and has a sound output surface; the sound outlet surface is connected with a sound channel structure for sound transmission; the sound channel structure has a first sound transmission channel.

Specifically, the speaker 15 is mounted in a mounting seat, the mounting seat is in a box structure, a containing cavity is formed in the mounting seat, the speaker 15 is mounted in the containing cavity, and the mounting seat comprises the base 14 and the cover plate 18; an opening is arranged on one surface of the base 14 far away from the sound emitting surface, and the cover plate 16 is detachably arranged at the opening, so that the purpose of the arrangement is to facilitate the installation and the detachment of the loudspeaker 15; the base 14 is provided with a mounting hole site, so that the sound system can be conveniently mounted on a seat; a second sound transmission through hole communicated with the accommodating cavity is formed in one side, close to the sound outlet surface, of the base 14; the purpose of the second through-going sound opening is to transmit sound emitted by the loudspeaker 15 out of the receiving chamber; the sound channel structure is arranged at the second sound transmission through hole, and the first sound transmission channel is communicated with the second sound transmission through hole; one end of the sound channel structure, which is far away from the second sound transmission through hole, is connected with the throat 12.

The function of the throat 12 is to direct sound to a final destination, having a sound inlet, a sound outlet and a second sound transmission channel communicating the sound inlet and the sound outlet; the sound inlet is communicated with one end, far away from the sound outlet surface, of the first sound transmission channel; sound emitted by the loudspeaker 15 enters the second sound transmission channel from the first sound transmission channel and is output from the sound outlet; a guide structure is arranged at the periphery of the sound outlet; the guide structure is used for limiting the sound output by the sound outlet to propagate along the set direction.

Referring to fig. 4 and 5, the throat 12 is mounted on the base 13, the base 13 has a pie-shaped structure, one surface of the base is provided with the throat 12, and the other surface is connected with the sound channel structure; the pedestal 13 is provided with a first sound transmission through hole; the first sound transmission channel is connected with one end of the first sound transmission through hole, which is close to the loudspeaker 15; the second sound transmission channel communicates with an end of the first sound transmission aperture remote from the loudspeaker 15.

The prior sound system is mostly installed at the headrest part of the seat, resonance is easy to generate when the head of a user contacts the headrest, and the prior headrest is mostly designed to be capable of moving up and down in order to be suitable for users with different heights, so that the wire harness of the sound system is difficult to arrange; in order to solve the problem that the wire harness is difficult to arrange and ensure that a user using a seat can better receive sound output by the sound system, the sound system is arranged at the shoulder position of the seat back, the sound throat 12 is designed to be bent towards one side, namely, the second sound transmission channel in the sound throat 12 is a bent channel, namely, the sound inlet direction and the sound outlet direction of the second sound transmission channel are different directions, and in the embodiment, the sound inlet direction and the sound outlet direction of the second sound transmission channel are about 90 degrees.

A guide structure is arranged at the periphery of the sound outlet of the sound throat 12; the sound output by the sound outlet can be transmitted along the set direction by the guide structure, if the sound output by the sound outlet does not have the guide structure, the sound output by the sound outlet can be transmitted in a divergent mode, namely, the sound is not transmitted in a directional mode, so that surrounding people can receive the sound easily, the surrounding people can be disturbed easily, and personal privacy of the user cannot be protected.

Referring to fig. 4, the guiding structure includes two first guiding portions 121 disposed at two sides of the sound outlet; the two first guiding parts 121 are far away from the connecting line of the outermost edge of the sound outlet and the center point of the sound inlet to form a first included angle; the first included angle is an acute angle.

In this embodiment, the guiding structure and the throat 12 are integrally formed, the two first guiding portions 121 may be not connected to each other, or may be integrally connected to each other, in this embodiment, they are integrally connected to each other, and are specifically an arc plate, a through hole communicating with the sound outlet is formed in the middle of the arc plate, and the bending direction of the arc plate faces away from the throat 12, and the bottom of the arc plate is tightly attached to the surface of the pedestal 13; the center point of the sound inlet and two connecting lines of the outermost edges of the left end part and the right end part of the arc-shaped plate form a first included angle theta; the first included angle θ is an acute angle, and preferably, the angle range of the first included angle θ is (55 ° -60 °) ±15°.

Further, the guide structure further includes second guide portions 122 provided on both the first guide portions 121 on the side away from the speaker 15; the second guiding portion 122 extends toward the opening direction of the first included angle; in this embodiment, the second guiding portion 122 is connected to a side of the arc-shaped plate away from the pedestal 13, and extends toward the opening direction of the first angle.

The first guide part 121 and the second guide part 122 together form a guide structure that can collect sound to form a sound field and impart directivity to sound; according to the embodiment, the guiding structure is arranged on the periphery of the sound outlet, sound output by the sound outlet can be limited to be transmitted along the set direction, when a user sits on the seat, the sound emitted by the loudspeaker 15 sequentially passes through the first sound transmission channel and the second sound transmission channel and then is output by the sound outlet, the output sound can be directionally transmitted to the head of the user under the limiting effect of the guiding structure, the sound transmitted by the sound system is prevented from being received by other surrounding people, the interference to surrounding people is avoided, the personal privacy of the user is protected, and the comfort level of the user is improved.

Further, referring to fig. 6, the pedestal 13 is further provided with a housing 11; the outer cover 11 is covered outside the throat 12; the housing 11, the pedestal 13 and the guiding structure together enclose a first chamber; the position on the housing 11 corresponding to the first chamber is a first acoustic field region 111; the first sound field region 111 is provided with a sound outlet hole communicated with the first chamber; and after the sound output by the sound outlet propagates to the first cavity, the sound is output by the sound outlet.

Specifically, the outer cover 11 has an approximately hemispherical shape, is covered on the surface of the base 13 on which the throat 12 is mounted, and forms a total chamber; the throat 12 and the guiding structure are both positioned in the total cavity, the guiding structure divides the total cavity into two cavities, namely a cavity containing the throat 12 and a cavity not containing the throat 12, and the cavity not containing the throat 12 is the first cavity; the position on the housing 11 corresponding to the first chamber is a first acoustic field region 111; the first sound field region 111 is a sound outlet region, and a plurality of sound outlet holes communicated with the first chamber are formed in the first sound field region, so that sound output from the sound outlet is only outputted from the sound outlet Kong Chuanchu on the first sound field region 111.

Further, a partition structure 113 is further installed on the pedestal 13; the partition structure 113, the housing 11, and the pedestal 13 together enclose a second chamber; a second acoustic field region 112 is located on the housing 11 corresponding to the second chamber; the second acoustic field region 112 is provided with an acoustic receiving hole communicated with the second chamber; a sound receiving piece 17 is arranged in the second chamber; the sound receiving piece 17 is used for receiving sound of the surrounding environment through the sound receiving Kong Shequ;

the sound system further comprises a control module 18, wherein the control module 18 is used for processing the surrounding sound picked up by the sound pickup piece 17 to obtain a noise elimination sound signal corresponding to the surrounding sound; the control module 18 is also adapted to transmit the noise cancelling sound signal to the loudspeaker 15.

Specifically, the separation structure 113 is a partition plate, which separates the cavity containing the throat 12 obtained after the separation of the guiding structure into two cavities, that is, the separation structure 113 and the guiding structure jointly separate the total cavity into three cavities, namely, a sound insulation cavity located between the separation structure 113 and the guiding structure, the first cavity located at one side of the guiding structure, and the second cavity located at one side of the separation structure 113, the sound insulation cavity is located between the first cavity and the second cavity, and a region corresponding to the sound insulation cavity on the housing 11 is a sound shielding region 114; the sound-insulating chamber is filled with a filler for insulating sound, which may be, for example, a non-newtonian fluid, the filler being used to insulate the first and second chambers.

It should be noted that, since the outer cover 11 is an exposed part, the first sound field region 111 and a part of the sound shielding region 114 are designed to have similar shapes in consideration of aesthetic properties, the first sound field region is located in the middle of fig. 6, the sound shielding regions are located on two sides of the first sound field region, the two regions are different in that the first sound field region 111 is provided with a sound outlet, and the sound shielding region 114 is of a closed structure, i.e. has no opening.

The pedestal 13 is further provided with a plurality of sound receiving pieces 17 on one side close to the outer cover 11, the sound receiving pieces 17 are microphones, for example, and are located in the second cavity, the position, corresponding to the second cavity, on the outer cover 11 is a second sound field area 112, a plurality of sound receiving holes communicated with the second cavity are formed in the second sound field area 112, and when the sound receiving pieces 17 are opened, sound of surrounding environment can be picked up through the sound receiving holes.

Referring to fig. 7, in this embodiment, the speaker 15 and the sound receiving member 17 are both connected to the control module 18, when the sound system is installed on a vehicle seat, the control module 18 may be an ECU (Elecmal Control Unit) of the vehicle, or may be an ECU of the sound system, the sound receiving member 17 transmits picked up ambient sound to the control module 18, the control module 18 performs spectrum analysis on the acquired ambient sound, calculates a mirror image spectrum and analyzes the mirror image spectrum into a sound signal, that is, a noise cancellation sound signal corresponding to the ambient sound is obtained, and transmits the noise cancellation sound signal to the speaker 15, and the noise cancellation sound signal is converted into sound through the speaker 15 and played, and is superimposed with the ambient sound, thereby achieving the purpose of noise reduction.

It should be noted that the control module 18 has another function of receiving a general input signal and controlling the speaker 15 to output a corresponding sound, for example, it may receive a music signal sent by a mobile terminal (such as a mobile phone) and then control the speaker 15 to output music.

It should also be noted that, in other embodiments of the present utility model, the sound receiving member 17 may be disposed independently, i.e., not integrated with the speaker 15, the sound channel structure, etc.

Further, the length of the first sound transmission channel is adjustable. In this embodiment, the channel structure comprises two parts, namely a first channel subsection 131 installed on one side of the base 13 away from the throat 12 and a second channel subsection 141 installed on one side of the base 14 close to the base 13; the outer diameter of the first channel subsection 131 is slightly smaller than the inner diameter of the second channel subsection 141, one end of the first channel subsection 131 is inserted into the second channel subsection 141 and is clamped with the second channel subsection 141, when the external structure and the internal structure are assembled, the length of the first channel subsection 131 inserted into the second channel subsection 141 can be adjusted according to actual needs, for example, according to the distance from the surface of a seat back to a backrest framework, so that the acoustic system is flattened, the same product can adapt to seats of different specifications, the production cost is reduced, and as shown in fig. 8, the first channel subsection 131 can be partially inserted into the second channel subsection 141 or can be fully inserted into the second channel subsection 141.

Preferably, a sealing ring is disposed at the connection between the first sound channel subsection 131 and the second sound channel subsection 141 for sealing sound waves.

The sound system provided by the embodiment greatly improves the comfort level of users, mainly improves the seat environment using the sound system from two aspects, firstly provides an independent audio-visual environment, and the sound played by the loudspeaker 15 can be directionally transmitted after being output through the sound outlet, so that the sound is prevented from being received by surrounding personnel, the interference to the surrounding personnel is avoided, and the personal privacy of the users is also protected; the second aspect is to provide an independent rest environment, and to pick up and analyze the surrounding environment sound to obtain a noise-eliminating sound output, so as to eliminate the surrounding environment noise and achieve the purpose of noise reduction.

Example 2

Referring to fig. 9 to 12, the present embodiment provides a vehicle seat including a backrest 21 and a headrest 22, the seat sound system 1 described in embodiment 1 being symmetrically provided on both sides of the shoulder portion of the backrest 21; the sound propagation directions of the two sound systems 1 converge in the front of the vehicle seat 2.

Specifically, the backrest 21 includes a skin, foam 211 and a skeleton 212 located inside the skin, the external structure of the sound system 1 is exposed at the shoulder of the backrest 21, and the internal structure of the sound system 1 is mounted at the foam 211 and the skeleton 212 at corresponding positions inside the backrest 21, specifically fastened to the skeleton 212 through mounting holes provided on the base 14; the first sound channel subsection 131 on the external structure and the second sound channel subsection 141 on the internal structure are connected in a converging way, and the two parts have an overlapped part, and the length of the overlapped part depends on the thickness of the foam 211 and the position of the skeleton 212.

The speakers 15 and the sound receiving parts 17 of the two sound systems 1 are connected to the ECU of the vehicle or the ECU of the sound system, and the intersection position of sound fields formed by the two sound systems 1 acts on the head of an occupant; the vehicle seat is provided with at least two modes for passengers to choose, wherein the first mode is an audio-visual mode, the second mode is a rest mode, when the passengers need audio-visual to relax body and mind and choose the audio-visual mode, the ECU can provide independent audio-visual environment for the passengers on the vehicle seat, particularly controls the loudspeaker 15 to play music or video sound to relax body and mind, and after the playing is started, the independent sound field formed by the sound throat 12 is pointed, so that the sound is pointedly received in the ears of the passengers without affecting surrounding passengers; when the passenger needs to rest in an ease environment, the passenger can select a rest mode, at this time, the ECU provides an independent rest environment for the passenger on the vehicle seat, specifically, controls the sound receiving part 17 to pick up the sound of the surrounding environment of the current vehicle seat, and processes the sound to obtain a noise-eliminating sound signal, and the noise-eliminating sound signal is converted into sound by the speaker 15 to be played, so as to achieve the purpose of noise reduction.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.

Claims (10)

1. A sound system for a seat, comprising:

a speaker (15), the speaker (15) having a sound output surface; the sound outlet surface is connected with a sound channel structure for sound transmission; the sound channel structure is provided with a first sound transmission channel;

a throat (12), the throat (12) having a sound inlet, a sound outlet, and a second sound transmission channel communicating the sound inlet and the sound outlet; the sound inlet is communicated with one end, far away from the sound outlet surface, of the first sound transmission channel; sound emitted by the loudspeaker (15) enters the second sound transmission channel from the first sound transmission channel and is output from the sound outlet; a guide structure is arranged at the periphery of the sound outlet; the guide structure is used for limiting the sound output by the sound outlet to propagate along the set direction.

2. The seat sound system according to claim 1, wherein the guide structure includes two first guide portions (121) provided on both sides of the sound outlet; the connecting lines of the outermost edges, far away from the sound outlet, of the two first guide parts (121) and the center point of the sound inlet form a first included angle; the first included angle is an acute angle.

3. The seat audio system according to claim 2, characterized in that the guide structure further includes a second guide portion (122) provided on a side of both the first guide portions (121) away from the speaker (15); the second guide part (122) extends towards the opening direction of the first included angle.

4. The seat audio system according to claim 1, wherein the throat (12) is mounted on a pedestal (13); the pedestal (13) is provided with a first sound transmission through hole; the first sound transmission channel is connected with one end of the first sound transmission through hole, which is close to the loudspeaker (15); the second sound transmission channel is communicated with one end of the first sound transmission through hole, which is far away from the loudspeaker (15);

an outer cover (11) is also arranged on the pedestal (13); the outer cover (11) is arranged outside the throat (12); the outer cover (11), the pedestal (13) and the guide structure jointly enclose to form a first chamber; a first sound field region (111) is arranged at a position on the outer cover (11) corresponding to the first chamber; the first sound field region (111) is provided with a sound outlet communicated with the first cavity; and after the sound output by the sound outlet propagates to the first cavity, the sound is output by the sound outlet.

5. The seat audio system according to claim 4, wherein the pedestal (13) is further provided with a partition structure (113); the separation structure (113), the outer cover (11) and the pedestal (13) jointly enclose a second chamber; a second sound field region (112) is arranged at a position on the outer cover (11) corresponding to the second cavity; the second sound field region (112) is provided with a sound receiving hole communicated with the second cavity; a sound receiving piece (17) is arranged in the second chamber; the sound receiving piece (17) is used for receiving sound of the surrounding environment through the sound receiving Kong Shequ;

the sound system further comprises a control module (18), wherein the control module (18) is used for processing surrounding environment sounds picked up by the sound receiving piece (17) to obtain a noise elimination sound signal corresponding to the surrounding environment sounds; the control module (18) is also configured to transmit the noise cancelling sound signal to the loudspeaker (15).

6. The seat sound system of claim 5 wherein a sound isolation chamber is provided between the first chamber and the second chamber.

7. The seating sound system of claim 1 further comprising a mount; an accommodating chamber is formed in the mounting seat; the loudspeaker (15) is mounted in the accommodating chamber; a second sound transmission through hole communicated with the accommodating cavity is formed in one side, close to the sound outlet surface, of the mounting seat; the second sound transmission through hole is communicated with one end of the first sound transmission channel far away from the voice throat (12).

8. The seating sound system of claim 1 wherein the first sound transmission channel is adjustable in length.

9. A vehicle seat, the vehicle seat (2) comprising a backrest (21) and a headrest (22), characterized in that the seat sound system (1) according to any one of claims 1-8 is symmetrically arranged on both sides of the shoulder of the backrest (21); the sound propagation directions of the two sound systems (1) converge in the front of the vehicle seat (2).

10. The vehicle seat according to claim 9, characterized in that the backrest (21) comprises foam (211) and a skeleton (212); the seat sound system (1) is fixedly connected with the framework (212).