Multichannel acoustic intelligent sofa with built-in resonance cavity

Abstract

The invention provides a multi-channel acoustic intelligent sofa with a built-in resonance cavity, and relates to the technical field of intelligent furniture, the multi-channel acoustic intelligent sofa comprises a sofa body, the sofa body comprises a cushion area, a backrest area and armrest parts located on the two sides of the cushion area; at least one low-pitch playing module is arranged on the armrest part, at least one high-pitch playing module is arranged on the backrest area, and the high-pitch playing module and the low-pitch playing module are separated in space to form sound field subareas; the armrest part is arranged to be of a box-type structure with a closed resonance cavity inside, and the bass playing module is located in the resonance cavity; and low-frequency sound waves of the bass playing module are output after being enhanced by the resonance cavity. The armrest comprises a low pitch playing module and a high pitch playing module, the armrest part is provided with a closed resonance cavity, sound energy is amplified in the closed resonance cavity and then is transmitted through a structure, and a shocking body feeling is brought; and the high-frequency part drives a high-pitch loudspeaker of the backrest to directly reach human ears to form a clear sound image.

Description

Technical Field

[0001] This invention relates to the field of smart furniture technology, and in particular to a multi-channel acoustic smart sofa with a built-in resonance cavity. Background Technology

[0002] Most existing speaker sofas simply have speakers or Bluetooth speakers installed inside the sofa itself. The sound source is usually fixed within the sofa structure, far from the user's ears, resulting in insufficient sound directionality and localization. Furthermore, the speaker layout of existing speaker sofas is often quite simple, resulting in a single sound field and a lack of surround sound, making it difficult for users to achieve an immersive home theater experience when watching movies or listening to music. Traditional speakers require separate placement, not only taking up valuable indoor space but also often having an appearance that clashes with the home environment, disrupting the overall aesthetic unity.

[0003] Therefore, there is an urgent need in this field for an innovative audio sofa structure that can accurately position high-frequency sound images in the user's head area, ensuring clear transmission of human dialogue and high-frequency details; at the same time, it can utilize the sofa's own structure as a resonance cavity to enhance low-frequency response, and through structural conduction, allow low-frequency vibrations to act directly on the human body, producing a realistic tactile vibration effect, thereby truly achieving a cinema-level immersive audio experience while maintaining the aesthetics of the furniture and space utilization efficiency. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a multi-channel acoustic smart sofa with a built-in resonance cavity, which can overcome the technical defects mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] A multi-channel acoustic smart sofa with a built-in resonance cavity includes a sofa body, the sofa body including a seat cushion area, a backrest area and armrests located on both sides of the seat cushion area; at least one bass playback module is provided on the armrests, and at least one treble playback module is provided on the backrest area, the treble playback module and the bass playback module are spatially separated to form a sound field partition.

[0007] The armrest is designed as a box-like structure with a sealed resonance cavity inside. The sealed resonance cavity is formed by rigid cavity walls and is fixedly connected to the load-bearing frame of the sofa body. The bass playback module is located in the resonance cavity. The low-frequency sound waves of the bass playback module are amplified by the resonance cavity and then output. Acoustic enhancement is formed in the sealed resonance cavity and transmitted to the seat cushion area and backrest area through the load-bearing frame, so that the low-frequency vibration acts on the user's body, thereby forming a tactile sound effect.

[0008] The high-frequency playback module is used to output mid-to-high frequency sound waves to the user's head area in the form of directional sound images, so that the low-frequency sonic sound effects and the high-frequency direct sound images form a coordinated multi-channel immersive sound field.

[0009] Furthermore, the sofa body is equipped with an audio control module, the output of which is electrically connected to the bass playback module and the treble playback module respectively;

[0010] The audio control module includes a frequency division module, which is used to divide the input audio signal into a low-frequency signal and a high-frequency signal; the low-frequency signal is output to the bass playback module, and the high-frequency signal is output to the treble playback module.

[0011] Furthermore, the audio control module also includes an audio input unit, an audio decoding module, and a switch adjustment module that are electrically connected in sequence; the audio input unit includes a Bluetooth receiver module and / or a USB audio input interface; the switch adjustment module is used to control power, volume, and audio input source switching.

[0012] Furthermore, the switch adjustment module includes a volume control unit.

[0013] Furthermore, the high-frequency playback module is located on the upper part or both sides of the backrest area and faces the user's head.

[0014] Furthermore, the cushion area includes at least one independently movable stool unit, the bottom of which is provided with casters; a linear guide rail for connecting to the sofa body is provided on the side of the stool unit; a first adjustment and positioning push rod is provided on the sofa body, the movable end of which is connected to the stool unit and used to drive the stool unit to slide along the linear guide rail.

[0015] Furthermore, the backrest area is provided with at least one backrest acoustic posture positioning plate, which is connected to the sofa body via a hinge shaft; the sofa body is provided with a second adjustment positioning push rod, the movable end of which is connected to the backrest acoustic posture positioning plate and is used to drive the backrest acoustic posture positioning plate to rotate around the hinge shaft to adjust the tilt angle; the first adjustment positioning push rod, the second adjustment positioning push rod, and the push rod driver are electrically connected.

[0016] Furthermore, a headrest acoustic field attitude positioning plate is further hinged above the backrest acoustic field attitude positioning plate.

[0017] Furthermore, it also includes a power supply system, which comprises a first power module and a second power module; the first power module is located inside the armrest, and the second power module is located in the non-armrest area of ​​the sofa body; the first power module provides the main operating power for the bass playback module, treble playback module, audio control module, first adjustment positioning push rod, and second adjustment positioning push rod to ensure stable system operation; the second power module serves as a backup power source, providing continuous power to the device when the main power is disconnected.

[0018] Furthermore, it also includes a voice interaction system, which comprises a voice acquisition unit and an AI chip module; the voice acquisition unit is signal-connected to the AI ​​chip module; the AI ​​chip module is control-connected to the audio control module, the first adjustment positioning push rod, and the second adjustment positioning push rod, and is used to perform corresponding audio parameter adjustments or seat posture adjustments according to voice commands.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When a user sits on the sofa and turns on the system, the audio control module receives the audio stream via Bluetooth or USB, decodes and divides it into frequencies. The low-frequency component drives the subwoofer in the armrests. The sound energy is amplified in a sealed resonance cavity and transmitted through the structure, creating a powerful tactile experience. The subwoofer playback module is located within the resonance cavity. The low-frequency sound waves generated by the subwoofer playback module are amplified within the sealed resonance cavity and then transmitted through the sofa's support frame to the seat cushion and / or backrest area, causing the low-frequency vibrations to act on the user's body and create a tactile sound effect. The high-frequency playback module directs mid-to-high frequency sound waves to the user's head area, working in conjunction with the low-frequency tactile sound effect to create an immersive multi-channel sound field. The high-frequency component drives the tweeter in the backrest, delivering sound directly to the ear and creating a clear sound image. This combination of audio immersion and human comfort is suitable for smart home environments. Users can adjust the fore-and-aft position of the seat unit, the angle of the backrest sound field posture positioning plate, and the headrest sound field posture positioning plate via voice commands to achieve their most comfortable body posture and sound field positioning. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and are used together with the embodiments of the invention to explain the invention. They do not constitute a limitation of the invention. In the drawings:

[0022] Figure 1 This is a structural schematic diagram of the smart sofa of the present invention;

[0023] Figure 2 This is a perspective view of the smart sofa of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the armrest on the left side of the smart sofa of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the right side of the smart sofa of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the smart sofa of the present invention.

[0027] In the diagram: 1. Seat cushion area; 2. Backrest area; 3. Armrest; 4. High-frequency playback module; 5. Low-frequency playback module; 6. Audio input unit; 7. Audio decoding module; 8. Switch adjustment module; 9. Stool unit; 10. Casters; 11. Linear guide rail; 12. First adjustment and positioning push rod; 13. Backrest sound field posture positioning plate; 14. Second adjustment and positioning push rod; 15. Headrest sound field posture positioning plate; 16. First power module; 17. Second power module; 18. Voice acquisition unit; 19. AI chip module. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] like Figures 1 to 5 As shown, this invention claims protection for a multi-channel acoustic smart sofa with a built-in resonance cavity. The sofa body includes a seat cushion area 1 for supporting the buttocks, a backrest area 2 for supporting the back, and armrests 3 located on both sides of the seat cushion area 1. In this embodiment, the armrests 3 are not only a supporting structure but also part of the core acoustic components.

[0030] The sofa body is equipped with an audio control module, the backrest area 2 is equipped with at least one tweeter module 4, and the armrest area 3 is equipped with at least one woofer module 5. The output terminals of the audio control module are electrically connected to the woofer module 5 and the tweeter module 4, respectively. The tweeter module 4 and the woofer module 5 are spatially separated to form a sound field partition. Specifically, the tweeter module 4 is embedded in the upper part of the backrest area 2, located at the corresponding height on both sides of the user's head. In this embodiment, the tweeter module 4 can also be located on both sides of the backrest area 2.

[0031] In this embodiment, the armrest 3 is designed as a box-like structure with a sealed resonance cavity inside. At least one bass playback module 5 is installed in the resonance cavity of each armrest 3. The sealed resonance cavity plays the role of a subwoofer enclosure. In addition, the resonance cavity is structurally integrated with the rigid frame of the sofa body, so that the low-frequency sound waves enhanced by the bass playback module 5 can be transmitted to the human body through the sofa frame, allowing the user to directly feel the vibration of the sound waves, providing a tactile vibration experience similar to that of a movie theater seat, thus enhancing the sense of immersion.

[0032] The sealed resonance cavity is formed by rigid cavity walls and is fixedly connected to the load-bearing frame of the sofa body; the bass playback module 5 is set in the resonance cavity, and the low-frequency sound waves of the bass playback module 5 are amplified by the resonance cavity and then output; acoustic enhancement is formed in the sealed resonance cavity and transmitted to the seat area 1 and backrest area 2 through the load-bearing frame, so that the low-frequency vibration acts on the user's body, thereby forming a tactile sound effect.

[0033] The high-frequency playback module 4 is used to output mid-to-high frequency sound waves to the user's head area in the form of directional sound images, so that the low-frequency sonic sound effect and the high-frequency direct sound image form a coordinated multi-channel immersive sound field.

[0034] The audio control module includes a frequency division module. The audio control module receives external audio signals, and the frequency division module separates the full-frequency signal into low-frequency and high-frequency signals. The low-frequency signal is sent to the bass playback module 5 located in the armrest section 3, while the high-frequency signal is sent to the treble playback module 4 located in the backrest section 2, achieving the effect of zoned playback.

[0035] Furthermore, the audio control module also includes an audio input unit 6, an audio decoding module 7, and a switch adjustment module 8, which are electrically connected in sequence. The audio input unit 6 preferably includes a Bluetooth receiver module and a USB audio input interface, facilitating connection to devices such as mobile phones and computers. The audio decoding module 7 is responsible for decoding the received digital audio signals. The switch adjustment module 8 includes a power switch, a volume control knob, an input source switching button, and a volume adjustment unit for easy control.

[0036] To accommodate different user body shapes and sitting postures, this invention incorporates a posture adjustment system. Specifically, the seat cushion area 1 includes independent seat units 9, each seat unit 9 having a caster 10 mounted on its bottom and a side-mounted linear guide rail 11 fixed to the sofa body frame. A first adjustment and positioning push rod 12 is mounted on the sofa body, with its movable end connected to the seat unit 9. Users can control the first adjustment and positioning push rod 12 to drive the seat unit 9 to slide back and forth along the linear guide rail 11, thereby adjusting the extension or retraction of the seat unit 9.

[0037] The backrest area 2 is equipped with a backrest acoustic posture positioning plate 13, which is connected to the sofa body frame via a horizontal hinge axis. A second adjustment positioning push rod 14 is installed on the sofa body frame, and the movable end of the second adjustment positioning push rod 14 is connected to the back of the backrest acoustic posture positioning plate 13. By driving the second adjustment positioning push rod 14 to extend or retract, the backrest acoustic posture positioning plate 13 can rotate around the hinge axis within a certain angle range, thereby changing the user's backrest angle.

[0038] Furthermore, above the backrest acoustic field posture positioning plate 13, a headrest acoustic field posture positioning plate 15 is hinged via another hinge shaft. The second adjustment positioning push rod 14 moves the backrest acoustic field posture positioning plate 13, which in turn moves the headrest acoustic field posture positioning plate 15, thereby also adjusting the pitch angle of the headrest acoustic field posture positioning plate 15.

[0039] In this embodiment, both the first adjusting positioning push rod 12 and the second adjusting positioning push rod 14 are electric linear push rods. The sofa body mentioned above mainly refers to the sofa frame. High-elasticity sponge pads are also installed on the surfaces of the backrest sound field posture positioning plate 13, the headrest sound field posture positioning plate 15, and the seat unit 9 to enhance comfort.

[0040] To ensure stable and reliable system operation, this invention includes a first power module 16 and a second power module 17. The first power module 16 is installed in the unused space of the armrest 3, converting mains power into the DC voltage required by the system to power the main loads such as the bass playback module 5, treble playback module 4, audio control module, and various push rod motors. The second power module 17 serves as a backup power source and is located in the non-armrest area such as the base of the sofa body. When the main power is unexpectedly disconnected, the second power module 17 can seamlessly switch over, providing continuous power to the control system and necessary functions, preventing sudden power outages.

[0041] The first adjusting positioning push rod 12 and the second adjusting positioning push rod 14 are electrically connected to the push rod driver 20, and both are driven by the push rod driver 20.

[0042] The present invention also includes a voice interaction system, comprising a voice acquisition unit 18 and an AI chip module 19 disposed on the armrest 3. The voice acquisition unit 18 picks up user voice commands and transmits them to the AI ​​chip module 19. After recognizing a valid command, the AI ​​chip module 19 sends control signals to the audio control module and the push rod driver 20, thereby performing corresponding audio parameter adjustments or seat posture adjustments, achieving truly hands-free intelligent control.

[0043] When a user sits on the sofa and turns on the system, the audio control module receives the audio stream via Bluetooth or USB, decodes and divides it into frequencies. The low-frequency portion drives the bass playback module 5 in the armrest 3, and the sound energy is amplified in the sealed resonance cavity and transmitted through the structure, bringing a powerful tactile experience. The high-frequency portion drives the treble playback module 4 in the backrest, directly reaching the user's ears and forming a clear sound image. The user can adjust the fore-and-aft position of the seat unit 9, the angle of the backrest sound field posture positioning plate 13, and the headrest sound field posture positioning plate 15 via voice or manual adjustment to achieve the most comfortable body posture and sound field positioning. Therefore, this invention deeply integrates a multifunctional sofa with a high-quality, highly immersive personalized audio system by setting the armrest 3 as a bass resonance cavity, independently arranging the treble playback module 4 in the backrest area 2, and setting a first adjustment positioning push rod 12 and a second adjustment positioning push rod 14 to adjust the length of the seat unit 9 and the backrest sound field posture positioning plate 13 and headrest sound field posture positioning plate 15, thereby enhancing the user experience.

[0044] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A built-in resonance cavity multi-channel acoustic smart sofa, characterized in that, The sofa body comprises a cushion area (1), a backrest area (2), and armrest parts (3) on both sides of the cushion area (1); at least one bass playing module (5) is arranged on the armrest part (3), and at least one treble playing module (4) is arranged on the backrest area (2); the treble playing module (4) and the bass playing module (5) are arranged in a spatially separated manner to form a sound field partition; The armrest part (3) is arranged in a box structure with a closed resonance cavity in the interior, the closed resonance cavity is formed by a rigid cavity wall, and is fixedly connected with a load-bearing framework of the sofa body; the bass playing module (5) is arranged in the resonance cavity, and low-frequency sound waves of the bass playing module (5) are output after being enhanced by the resonance cavity; acoustic enhancement is formed in the closed resonance cavity, and is transmitted to the cushion area (1) and the backrest area (2) through the load-bearing framework, so that low-frequency vibration acts on the user's body, thereby forming a body-sensing sound effect; The treble playing module (4) is used for outputting mid-high frequency sound waves to the head area of the user in the form of directional sound images, so that the low-frequency body-sensing sound effect and the high-frequency direct sound image form a coordinated multi-channel immersive sound field.

2. The built-in acoustic resonance cavity multi-channel acoustic smart sofa according to claim 1, wherein, The sofa body is provided with an audio control module, and output ends of the audio control module are electrically connected with the bass playing module (5) and the treble playing module (4) respectively; The audio control module comprises a frequency division module for dividing input audio signals into low-frequency signals and high-frequency signals; the low-frequency signals are output to the bass playing module (5), and the high-frequency signals are output to the treble playing module (4).

3. The built-in acoustic resonance cavity multi-channel acoustic smart sofa according to claim 2, characterized in that, The audio control module further comprises an audio input unit (6), an audio decoding module (7), and a switch adjustment module (8) which are electrically connected in sequence; the audio input unit (6) comprises a Bluetooth receiving module and / or a USB audio input interface; the switch adjustment module (8) is used for controlling power supply, volume, and audio input source switching.

4. The built-in acoustic resonance cavity multi-channel acoustic smart sofa of claim 3, wherein, The switch adjustment module (8) comprises a volume adjusting unit.

5. The built-in acoustic resonator multi-channel acoustic smart sofa of claim 1, wherein, The treble playing module (4) is arranged at the upper part or both sides of the backrest area (2) and faces the head of the user.

6. The built-in acoustic resonance cavity multi-channel acoustic intelligent sofa according to claim 1, wherein, The cushion area (1) comprises at least one independently movable ottoman unit (9), the bottom of the ottoman unit (9) is provided with a roller (10); a linear guide rail (11) connected with the sofa body is arranged on the side of the ottoman unit (9); a first regulating and positioning push rod (12) is arranged on the sofa body, the movable end of the first regulating and positioning push rod (12) is connected with the ottoman unit (9), and is used for driving the ottoman unit (9) to slide along the linear guide rail (11).

7. The built-in acoustic resonance cavity multi-channel acoustic smart sofa according to claim 6, characterized in that, The backrest area (2) is provided with at least one backrest sound field posture positioning plate (13) connected with the sofa body through a hinge shaft; the sofa body is provided with a second control positioning push rod (14), the movable end of the second control positioning push rod (14) is connected with the backrest sound field posture positioning plate (13), and the second control positioning push rod (14) is used for driving the backrest sound field posture positioning plate (13) to rotate around the hinge shaft to adjust the inclination angle; the first control positioning push rod (12) and the second control positioning push rod (14) are electrically connected with a push rod driver (20).

8. The built-in acoustic resonance cavity multi-channel acoustic smart sofa according to claim 7, characterized in that, The backrest sound field posture positioning plate (13) is further hingedly connected with a headrest sound field posture positioning plate (15) above.

9. The built-in acoustic cavity multi-channel acoustic intelligent sofa of claim 1, wherein, Further comprising a power supply system, the power supply system comprises a first power module (16) and a second power module (17); the first power module (16) is arranged in the armrest part (3), and the second power module (17) is arranged in a non-armrest area of the sofa body; the first power module (16) is used for providing main working power for the bass playing module (5), the treble playing module (4), the audio control module, the first control positioning push rod (12) and the second control positioning push rod (14), and ensuring stable operation of the system; the second power module (17) is used as a backup power supply to provide continuous power for the equipment when the main power supply is disconnected.

10. The built-in acoustic cavity multi-channel acoustic intelligent sofa of claim 1, wherein, Further comprising a voice interaction system, the voice interaction system comprises a voice collection unit (18) and an AI chip module (19); the voice collection unit (18) is signal connected with the AI chip module (19); the AI chip module (19) is control connected with the audio control module, the first control positioning push rod (12) and the second control positioning push rod (14), and is used for executing corresponding audio parameter adjustment or seat posture adjustment according to voice instructions.

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