A type of sofa

Abstract

This application discloses a sofa, belonging to the field of furniture technology. Armrests are disposed on at least one side of the base along a first direction, and at least one armrest has a mounting cavity. A playback device includes a diaphragm and is located within the mounting cavity. The mounting cavity has an opening on the side facing the base along the first direction, and the diaphragm faces the opening along the first direction. When the playback device plays audio, the sound waves generated by the diaphragm are directly transmitted out of the mounting cavity through the opening, reducing the repeated vibration of the cavity wall caused by the sound waves within the mounting cavity, thereby reducing the transmission of sofa vibrations to the user's body and reducing user discomfort. The reduced sofa vibration caused by the sound waves generated by the diaphragm further reduces the possibility of resonance between the sofa and the user's body, reducing user discomfort. The sound waves generated by the diaphragm are transmitted out of the mounting cavity through the opening, reducing reflection and interference of the cavity wall on the sound waves, reducing sound muddiness and directional interference, and improving sound quality.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and more particularly to a sofa. Background Technology

[0002] Sofas primarily provide a place to sit and rest. As living standards continue to improve, the functional requirements for sofas have also increased. For example, audio playback devices can be installed on sofas so that users can listen to audio while sitting on them.

[0003] In related technologies, a playback device is installed on the sofa, and when the user sits on the sofa, the playback device plays audio that makes the user feel uncomfortable. Utility Model Content

[0004] To address the aforementioned technical problems, this application aims to provide a sofa that reduces user discomfort.

[0005] The technical solution of this application is implemented as follows:

[0006] This application provides a sofa, including:

[0007] Base;

[0008] An armrest is disposed on at least one side of the base along a first direction, and at least one of the armrests has a mounting cavity;

[0009] At least one playback device, including a diaphragm, is located within the mounting cavity, the mounting cavity having an opening on one side of the base along the first direction, and the diaphragm facing the opening along the first direction.

[0010] In some embodiments, when projected along the first direction, the projection area of ​​the opening is smaller than the projection area of ​​the mounting cavity; and / or, when projected along the first direction, the projection area of ​​the diaphragm is located within the projection area of ​​the opening.

[0011] In some embodiments, the sofa includes a vibration damping device disposed on the cavity wall of the mounting cavity, and the playback device is disposed on the vibration damping device such that the surface of the playback device in contact with the vibration damping device is spaced apart from the cavity wall of the mounting cavity.

[0012] In some embodiments, the vibration damping device is a damping pad, a spring, an elastic rope, or a bracket with a damping cavity.

[0013] In some embodiments, the bracket is a U-shaped bracket, a rectangular bracket, or a waist-shaped bracket.

[0014] In some embodiments, the bracket includes spaced-apart mounting members and connectors, the bracket has a damping port communicating with the damping cavity, one end of each of the two mounting members is connected to the connector, the other ends of the two mounting members are spaced to form the damping port, the connector and the two mounting members surround the damping cavity, one of the mounting members is connected to the cavity wall of the mounting cavity, and the other mounting member is connected to the playback device.

[0015] In some embodiments, the playback device includes a bass reflex tube and a housing, wherein a portion of the bass reflex tube is located inside the housing, the bass reflex port of the bass reflex tube is located outside the housing, the diaphragm is disposed in the housing, and the bass reflex tube is spaced apart from the cavity wall of the mounting cavity.

[0016] In some embodiments, the phase inversion tube is located on one side of the housing along a preset direction, the phase inversion port is located on the side of the phase inversion tube away from the housing along the preset direction, and the minimum distance between the phase inversion port and the cavity wall of the mounting cavity along the preset direction is a preset distance, which is greater than or equal to 3cm and less than or equal to 30cm.

[0017] In some embodiments, the playback device is arranged spaced apart from the cavity wall of the mounting cavity.

[0018] In some embodiments, the base includes a cushion for support, the base having a suspended area located below the cushion, the suspended area communicating with the external environment, and an opening located below the cushion communicating with the suspended area.

[0019] In some embodiments, the cavity walls spaced apart on both sides of the mounting cavity along the first direction are first walls, the cavity walls spaced apart on both sides of the mounting cavity along the second direction are second walls, each second wall is connected to the first walls on both sides, and the cavity walls spaced apart on both sides of the mounting cavity along the third direction are third walls. The first walls on both sides, the second walls on both sides, and the third walls on both sides enclose the mounting cavity. The opening is formed in the first wall. The first direction intersects the second direction and the third direction, respectively, and the second direction intersects the third direction.

[0020] In some embodiments, the playback device is a subwoofer.

[0021] The sofa provided in the embodiments of this application has a playback device located inside a mounting cavity. The mounting cavity has an opening on the side facing the base along a first direction, and a diaphragm faces the opening along the first direction. When the playback device plays audio, the sound waves generated by the diaphragm are directly transmitted out of the mounting cavity through the opening, reducing the repeated vibration of the cavity wall caused by the sound waves within the mounting cavity. This reduces the transmission of sofa vibrations to the user's body, reducing user discomfort. The reduced sofa vibration caused by the sound waves generated by the diaphragm further reduces the possibility of resonance between the sofa and the user's body, reducing user discomfort. The sound waves generated by the diaphragm are transmitted out of the mounting cavity through the opening, reducing reflection and interference of the cavity wall on the sound waves, reducing sound muddiness and directional interference, and improving sound quality. With the mounting cavity having an opening on the side facing the base along the first direction, and the diaphragm facing the opening along the first direction, when the user sits on the sofa, the opening faces the user, and the sound generated by the diaphragm is closer to the user's ears, allowing the user to obtain a better acoustic experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the sofa according to an embodiment of this application;

[0023] Figure 2 for Figure 1 The projection view at point A in the figure, the back support device is not shown in the figure;

[0024] Figure 3 for Figure 2 Sectional view at point BB in the middle;

[0025] Figure 4 for Figure 2 Sectional view at point C;

[0026] Figure 5 This is an exploded view of a sofa according to an embodiment of this application; the seat cushion is not shown in the figure.

[0027] Figure 6 This is a schematic diagram of the handrail structure according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the assembly of the playback device and the vibration damping device according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 1. Base; 11. Seat cushion; 12. Suspended area; 2. Armrest; 21. Mounting cavity; 211. First wall; 212. Second wall; 213. Third wall; 22. Opening; 23. Rotating plate; 3. Playback device; 31. Diaphragm; 32. Bass reflex tube; 321. Bass reflex port; 33. Cabinet; 4. Bracket; 41. Vibration damping cavity; 42. Mounting component; 43. Connecting component; 44. Vibration damping port; 5. Back support device; R1. First direction; R2. Second direction; R3. Third direction; L. Preset distance. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be understood that the phrases "embodiments of this application" or "foreign embodiments" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "embodiments of this application" or "in the foreign embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely descriptive and do not represent the superiority or inferiority of the embodiments.

[0033] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application.

[0034] In related technologies, when a user sits on a sofa and listens to audio played by a playback device, the sound waves generated by the playback device cause the sofa to vibrate. The vibration is then transmitted to the user's body, making the user feel uncomfortable. Moreover, the sound waves from the playback device may cause the sofa and the user's body to resonate, making the user feel mental tension and accelerated heartbeat, thus increasing the user's discomfort.

[0035] This application provides a sofa in an embodiment; please refer to [link / reference]. Figures 1-3 The sofa includes a base 1, armrests 2 and at least one playback device 3. The armrests 2 are disposed on at least one side of the base 1 along a first direction R1. The at least one armrest 2 has a mounting cavity 21. The playback device 3 includes a diaphragm 31 and is located in the mounting cavity 21. The mounting cavity 21 has an opening 22 on the side of the base 1 along the first direction R1. The diaphragm 31 is oriented towards the opening 22 along the first direction R1.

[0036] It should be noted that when the user sits on the sofa, the base 1 is used to support the user, and the first direction R1 is the user's left and right direction.

[0037] The diaphragm 31 is a device in the playback device 3 that converts electrical energy into mechanical vibration energy. The diaphragm 31 generates sound waves by driving the air to vibrate through electromagnetic force.

[0038] For example, there may be one or two playback devices 3.

[0039] It should be noted that each playback device 3 includes a diaphragm 31.

[0040] For example, the armrest 2 is disposed on one side of the base 1 along the first direction R1.

[0041] For example, the armrests 2 are respectively disposed on both sides of the base 1 along the first direction R1.

[0042] For example, the number of handrails 2 is one or two.

[0043] For example, a handrail 2 has a mounting cavity 21.

[0044] For example, the mounting cavity 21 is located in one of the armrests 2, and the other armrest 2 has a storage cavity.

[0045] For example, both handrails 2 have mounting cavities 21.

[0046] For example, a playback device 3 is located within one of the mounting cavities 21.

[0047] For example, the two playback devices 3 are located in the two mounting cavities 21 respectively.

[0048] In this embodiment, the playback device 3 is located within the mounting cavity 21. The mounting cavity 21 has an opening 22 on the side facing the base 1 along the first direction R1. The diaphragm 31 faces the opening 22 along the first direction R1. When the playback device 3 plays audio, the sound waves generated by the diaphragm 31 are directly transmitted out of the mounting cavity 21 through the opening 22, reducing the repeated vibration of the cavity wall caused by the sound waves within the mounting cavity 21. This reduces the transmission of sofa vibrations to the user's body, thus reducing user discomfort. The reduced sofa vibration caused by the sound waves generated by the diaphragm 31 further reduces the possibility of resonance between the sofa and the user's body, reducing user discomfort. The sound waves generated by the diaphragm 31 are transmitted out of the mounting cavity 21 through the opening 22, reducing the reflection and interference of the cavity wall of the mounting cavity 21 on the sound waves, reducing sound muddiness and directional interference, and improving sound quality. The mounting cavity 21 has an opening 22 on the side facing the base 1 along the first direction R1, and the diaphragm 31 faces the opening 22 along the first direction R1. When the user sits on the sofa, the opening 22 faces the user, and the sound generated by the diaphragm 31 is closer to the user's ears, so that the user can get a better acoustic experience.

[0049] In some embodiments, please refer to Figure 3Projecting along the first direction R1, the projection area of ​​the opening 22 is smaller than the projection area of ​​the mounting cavity 21.

[0050] In this embodiment of the application, the projection area of ​​the opening 22 is smaller than the projection area of ​​the mounting cavity 21 when projected along the first direction R1. The opening 22 is smaller, and the sidewall of the opening 22 can block the playback device 3, reducing the possibility that the playback device 3 will fall out of the mounting cavity 21 from the opening 22.

[0051] For example, when projected along the first direction R1, the projection area of ​​the opening 22 is equal to the projection area of ​​the mounting cavity 21.

[0052] In some embodiments, please refer to Figure 3 Projecting along the first direction R1, the projection area of ​​the diaphragm 31 is located within the projection area of ​​the opening 22.

[0053] For example, the sidewall of opening 22 is arc-shaped.

[0054] For example, the opening 22 is circular.

[0055] In this embodiment, the projection area of ​​the diaphragm 31 is located within the projection area of ​​the opening 22 along the first direction R1. This facilitates the transmission of sound waves generated by the diaphragm 31 from the opening 22 to the mounting cavity 21, reducing the possibility of the sound waves being blocked by the cavity wall of the mounting cavity 21 where the opening 22 is located, and reducing the vibration of the cavity wall of the mounting cavity 21.

[0056] For example, when projected along the first direction R1, the projection area of ​​the diaphragm 31 is partially located outside the projection area of ​​the opening 22.

[0057] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 7 The sofa includes a vibration damping device, which is disposed on the cavity wall of the mounting cavity 21. The playback device 3 is disposed on the vibration damping device so that the surface of the playback device 3 in contact with the vibration damping device is spaced apart from the cavity wall of the mounting cavity 21.

[0058] For example, the vibration damping device can be an elastic damping pad, which absorbs vibration energy and blocks vibration transmission through elastic deformation.

[0059] For example, the vibration damping device is made of an elastic vibration damping material, such as natural rubber, neoprene rubber, or polyurethane polymer material.

[0060] In this embodiment, the vibration damping device is disposed on the cavity wall of the mounting cavity 21, and the playback device 3 is disposed on the vibration damping device, so that the surface of the playback device 3 in contact with the vibration damping device is spaced apart from the cavity wall of the mounting cavity 21. The vibration damping device reduces the transmission of vibration of the playback device 3 to the cavity wall of the mounting cavity 21, reduces the resonance between the playback device 3 and the cavity wall of the mounting cavity 21, and reduces the muddiness of the sound.

[0061] It is understandable that sofas do not need to be equipped with vibration damping devices.

[0062] In some embodiments, the vibration damping device is a damping pad, a spring, an elastic rope, or a bracket 4 having a damping cavity 41.

[0063] In this embodiment, the vibration damping device is a vibration damping pad, spring, elastic rope, or bracket 4 with a vibration damping cavity 41. This allows the playback device 3 to be suspended in the mounting cavity 21, which helps reduce the transmission of vibration of the playback device 3 to the cavity wall of the mounting cavity 21 and facilitates the selection of a suitable vibration damping device as needed.

[0064] The damping pad is a soft pad, and the bracket 4 with the damping cavity 41 has better support rigidity than the damping pad. The bracket 4 with the damping cavity 41 can better support the playback device 3.

[0065] For example, the vibration damping device is an elastic rope, one end of which is connected to the cavity wall of the mounting cavity 21, and the elastic rope suspends the playback device 3 inside the mounting cavity 21.

[0066] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 7 The bracket 4 has a vibration damping cavity 41, which is located between the playback device 3 and the cavity wall of the mounting cavity 21.

[0067] In this embodiment, the bracket 4 has a vibration damping cavity 41, which is located between the playback device 3 and the cavity wall of the mounting cavity 21. The vibration damping cavity 41 provides space for the bracket 4 to deform due to vibration, reducing the transmission of vibration through the bracket 4 to the cavity wall of the mounting cavity 21 and improving the vibration damping effect of the bracket 4.

[0068] In some embodiments, the bracket 4 is a U-shaped bracket, a rectangular bracket, or a waist-shaped bracket.

[0069] It should be noted that a waist-shaped support refers to a support whose vibration damping cavity is waist-shaped.

[0070] It should be noted that a rectangular support refers to a support whose vibration damping cavity is rectangular.

[0071] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 7The bracket 4 includes mounting members 42 and connecting members 43 spaced apart. The bracket 4 has a damping port 44 communicating with the damping cavity 41. One end of each of the two mounting members 42 is connected to the connecting member 43, and the other ends of the two mounting members 42 form the damping port 44 spaced apart. The connecting member 43 and the two mounting members 42 surround the damping cavity 41. One of the mounting members 42 is connected to the cavity wall of the mounting cavity 21, and the other mounting member 42 is connected to the playback device 3.

[0072] For example, bracket 4 is a U-shaped bracket.

[0073] For example, the bracket 4 is located below the playback device 3, and the two mounting pieces 42 are arranged in the vertical direction.

[0074] For example, the bracket 4 and the playback device 3 are arranged along the first direction R1, and the two mounting pieces 42 are arranged along the first direction R1.

[0075] For example, one of the mounting pieces 42 is connected to the playback device 3, and the other mounting piece 42 is connected to the cavity wall of the mounting cavity 21.

[0076] In this embodiment, the connector 43 connects two mounting members 42. The bracket 4 has a damping port 44 communicating with the damping cavity 41. One end of each of the two mounting members 42 is connected to the connector 43, and the other ends of the two mounting members 42 are spaced apart to form the damping port 44. One mounting member 42 is connected to the cavity wall of the mounting cavity 21, and the other mounting member 42 is connected to the playback device 3. When the vibration of the playback device 3 is transmitted to the mounting member 42 connected to the playback device 3, the end of the mounting member 42 connected to the playback device 3 facing the damping port 44 can deform. The damping cavity 41 provides space for the mounting member 42 to increase deformation buffering. The damping port 44 allows the mounting member 42 connected to the playback device 3 to better deform and buffer vibration, so as to reduce the transmission of vibration to the other mounting member 42, thereby reducing the transmission of vibration from the playback device 3 to the cavity wall of the mounting cavity 21.

[0077] For example, the connector 43 is arranged around the mounting member 42 to enclose the damping cavity 41 inside the bracket 4.

[0078] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 7 The playback device 3 includes a phase inverter 32 and a housing 33. The phase inverter 32 is partially located inside the housing 33, while the phase inverter port 321 of the phase inverter 32 is located outside the housing 33. The diaphragm 31 is disposed in the housing 33, and the phase inverter 32 is spaced apart from the cavity wall of the mounting cavity 21.

[0079] The bass reflex tube 32 is a hollow tubular structure. It is inserted into the enclosure 33 of the playback device 3 and uses the Helmholtz resonance principle to adjust the phase of low-frequency sound waves. The bass reflex tube 32 connects the external space of the enclosure 33 and the space facing the diaphragm 31 towards the inside of the enclosure 33. The bass reflex tube 32 receives the air vibration of the diaphragm 31 towards the inside of the enclosure 33 and changes its phase. Then, the air vibration of the diaphragm 31 towards the inside of the enclosure 33 is guided to the outside of the enclosure 33 through the bass reflex tube 32 and the bass reflex port 321, and superimposed with the air vibration of the diaphragm 31 towards the outside of the enclosure 33.

[0080] For example, the phase inverter tube 32 is made of materials such as PVC, metal or cardboard tube.

[0081] In this embodiment, the playback device 3 includes a bass reflex tube 32 and a housing 33. The bass reflex tube 32 is partially located inside the housing 33, while the bass reflex port 321 of the bass reflex tube 32 is located outside the housing 33. The diaphragm 31 is disposed in the housing 33. The bass reflex tube 32 can improve the effect of low-frequency sound waves played by the playback device 3. The bass reflex tube 32 is spaced apart from the cavity wall of the mounting cavity 21, which reduces the transmission of vibration of the bass reflex tube 32 to the cavity wall of the mounting cavity 21, reduces the obstruction of airflow of the bass reflex tube 32 by the cavity wall of the mounting cavity 21, reduces the possibility of the sound waves output by the bass reflex tube 32 being affected by the cavity wall of the mounting cavity 21, reduces sound muddiness, and improves the sound effect of the playback device 3.

[0082] For example, the phase inverter 32 contacts the cavity wall of the mounting cavity 21.

[0083] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 7 The phase reversing tube 32 is located on one side of the housing 33 along a preset direction, and the phase reversing port 321 is located on the side of the phase reversing tube 32 away from the housing 33 along a preset direction. The minimum distance between the phase reversing port 321 and the cavity wall of the mounting cavity 21 along a preset direction is a preset distance L. The preset distance L is greater than or equal to 3cm and less than or equal to 30cm.

[0084] For example, the preset distance L is equal to 3cm, 5cm, 10cm, 15cm, 20cm, 25cm or 30cm.

[0085] For example, the preset direction is parallel to or intersects with the first direction R1.

[0086] For example, the preset direction is parallel to or intersects with the up and down direction.

[0087] In this embodiment, the minimum distance between the phase inverter port 321 and the cavity wall of the mounting cavity 21 along a preset direction is a preset distance L. The preset distance L is greater than or equal to 3cm and less than or equal to 30cm. The preset distance L is within a suitable range, which helps to reduce the influence of the cavity wall of the mounting cavity 21 on the phase inverter tube 32.

[0088] For example, the preset distance L is 2.5cm.

[0089] For example, the preset distance L is 32cm.

[0090] In some embodiments, please refer to Figure 3 and Figure 4 The playback device 3 and the cavity wall of the mounting cavity 21 are arranged at intervals.

[0091] It should be noted that the playback device 3 and the cavity wall of the mounting cavity 21 are spaced apart, so that the playback device 3 and the cavity wall of the mounting cavity 21 do not contact each other.

[0092] For example, the playback device 3 is suspended inside the mounting cavity 21.

[0093] In this embodiment, the playback device 3 and the cavity wall of the mounting cavity 21 are arranged at a distance, and the playback device 3 and the cavity wall of the mounting cavity 21 do not contact each other, thereby reducing the vibration of the playback device 3 from being transmitted to the cavity wall of the mounting cavity 21, reducing the vibration transmitted to the user's body, and reducing the user's discomfort.

[0094] For example, one side of the playback device 3 is in contact with the cavity wall of the mounting cavity 21.

[0095] In some embodiments, please refer to Figures 1-3 The base 1 includes a cushion 11 for support, and the base 1 has a suspended area 12 located below the cushion 11. The suspended area 12 is in communication with the external environment, and the opening 22 is located below the cushion 11 and communicates with the suspended area 12.

[0096] It should be noted that when the user sits on the sofa, the user is sitting on cushion 11.

[0097] For example, the cushion 11 includes a sponge and a cover, with the cover laid over the sponge.

[0098] For example, the sound from the playback device 3 is transmitted from the opening 22 to the suspended area 12, and then from the middle of the suspended area 12 or to the front and rear ends of the suspended area 12.

[0099] In some embodiments, the base 1 further includes a frame connected to the armrest 2, and the seat cushion 11 is located on the frame.

[0100] For example, the suspended region 12 is formed in the skeleton.

[0101] In this embodiment of the application, the base 1 includes a cushion 11 for support. The base 1 has a suspended area 12 located below the cushion 11. An opening 22 is located below the cushion 11 and communicates with the suspended area 12. The cushion 11 can reduce the vibration caused by the sound transmitted from the opening 22. The cushion 11 can block the transmission of sound and reduce the sound of the playback device 3 directly transmitted to the user's ears.

[0102] For example, the opening 22 is located above the seat cushion 11.

[0103] In some embodiments, please refer to Figures 3-6 The cavity walls of the mounting cavity 21 arranged at intervals along the first direction R1 are called first walls 211, the cavity walls of the mounting cavity 21 arranged at intervals along the second direction R2 are called second walls 212, and each second wall 212 is connected to the first walls 211 on both sides. The cavity walls of the mounting cavity 21 arranged at intervals along the third direction R3 are called third walls 213. The first walls 211, the second walls 212, and the third walls 213 on both sides form the mounting cavity 21. The opening 22 is formed in the first wall 211. The first direction R1 intersects the second direction R2 and the third direction R3 respectively. The second direction R2 intersects the third direction R3.

[0104] For example, the first direction R1 is perpendicular to the second direction R2 and the third direction R3, respectively.

[0105] For example, the second direction R2 is perpendicular to the third direction R3.

[0106] For example, the second direction R2 is parallel to the up and down direction.

[0107] For example, the preset direction is parallel to or intersects with the third direction R3.

[0108] In this embodiment, the cavity walls spaced apart on both sides of the mounting cavity 21 along the first direction R1 are called first walls 211, and the cavity walls spaced apart on both sides of the mounting cavity 21 along the second direction R2 are called second walls 212. Each second wall 212 is connected to the first walls 211 on both sides. The cavity walls spaced apart on both sides of the mounting cavity 21 along the third direction R3 are called third walls 213. The first walls 211, the second walls 212, and the third walls 213 on both sides enclose the mounting cavity 21. The first direction R1 intersects the second direction R2 and the third direction R3, and the second direction R2 intersects the third direction R3. The first walls 211, the second walls 212, and the third walls 213 separate the mounting cavity 21 from the outside, protecting the playback device 3 inside the mounting cavity 21.

[0109] For example, the handrail 2 does not have a third wall 213, and the first walls 211 on both sides and the second walls 212 on both sides form an installation opening that connects the installation cavity 21 to the installation cavity 21.

[0110] In some embodiments, the first wall 211 is a wooden board or a steel plate, and the second wall 212 is a wooden board or a steel plate.

[0111] For example, the third wall 213 is a wooden board or a steel plate.

[0112] In some embodiments, the outer portion of the armrest 2 is covered with sponge and skin, with the skin laid on the outside of the sponge.

[0113] It should be noted that no sponge or skin was installed at opening 22.

[0114] For example, the third wall 213 is part of a sponge.

[0115] In some embodiments, the handrail 2 further includes a rotating plate 23, which is rotatably connected to the third wall 213. The rotating plate 23 is located above the first wall 211 and can rotate to expose or cover the second wall 212.

[0116] It should be noted that the rotating plate 23 has a sound insulation function. When the rotating plate 23 blocks the second wall 212, it can reduce the sound transmitted from the second wall 212. Changing the position of the rotating plate 23 can change the sound effect of the playback device 3.

[0117] For example, the outer side of the rotating plate 23 is covered with sponge and skin.

[0118] In some embodiments, the sofa further includes a back support device 5, which is located on one side of the base 1 along the third direction R3 and is connected to the base 1.

[0119] In some embodiments, the playback device 3 is a subwoofer.

[0120] It should be noted that a subwoofer is a speaker used to play bass frequencies between 20Hz and 200Hz.

[0121] For example, the sofa also includes a mid-high frequency speaker.

[0122] For example, the number of mid-high frequency speakers is two.

[0123] It should be noted that mid-high frequencies refer to sounds with frequencies greater than 200Hz.

[0124] In this embodiment, the playback device 3 is a subwoofer, which makes the sound played by the playback device 3 more powerful and robust, and can enhance the sense of presence and impact of the sound.

[0125] For example, the playback device 3 is a mid-high frequency speaker.

[0126] In the description of this application, the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," "some examples," or "other embodiments of this application," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiments or examples, which are included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0127] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0128] The components described above as separate parts may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of the embodiments of this application, depending on actual needs.

[0129] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0130] The features disclosed in the several device embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0131] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sofa, characterized in that include: Base; An armrest is disposed on at least one side of the base along a first direction, and at least one of the armrests has a mounting cavity; At least one playback device, including a diaphragm, is located within the mounting cavity, the mounting cavity having an opening on one side of the base along the first direction, and the diaphragm facing the opening along the first direction.

2. The sofa according to claim 1, characterized in that When projected along the first direction, the projection area of ​​the opening is smaller than the projection area of ​​the mounting cavity; and / or, when projected along the first direction, the projection area of ​​the diaphragm is located within the projection area of ​​the opening.

3. The sofa of claim 1, wherein, The sofa includes a vibration damping device disposed on the cavity wall of the mounting cavity, and the playback device is disposed on the vibration damping device such that the surface of the playback device in contact with the vibration damping device is spaced apart from the cavity wall of the mounting cavity.

4. The sofa according to claim 3, characterized in that The vibration damping device is a damping pad, spring, elastic rope, or bracket with a damping cavity.

5. The sofa according to claim 4, characterized in that The bracket is a U-shaped bracket, a rectangular bracket, or a waist-shaped bracket.

6. The sofa of claim 4, wherein, The bracket includes mounting members and connectors spaced apart. The bracket has a damping port communicating with the damping cavity. One end of each of the two mounting members is connected to the connector, and the other ends of the two mounting members are spaced apart to form the damping port. The connector and the two mounting members surround the damping cavity. One of the mounting members is connected to the cavity wall of the mounting cavity, and the other mounting member is connected to the playback device.

7. The sofa of claim 1, wherein The playback device includes a bass reflex tube and a housing. The bass reflex tube is located inside the housing, while the bass reflex port of the bass reflex tube is located outside the housing. The diaphragm is disposed in the housing, and the bass reflex tube is spaced apart from the cavity wall of the mounting cavity.

8. The sofa of claim 7, wherein, The phase inverter tube is located on one side of the housing along a preset direction, and the phase inverter port is located on the side of the phase inverter tube away from the housing along the preset direction. The minimum distance between the phase inverter port and the cavity wall of the mounting cavity along the preset direction is a preset distance, which is greater than or equal to 3cm and less than or equal to 30cm.

9. The sofa according to any one of claims 1 to 8, characterized in that, The playback device is arranged at a distance from the cavity wall of the mounting cavity.

10. The sofa according to any one of claims 1 to 8, characterized in that The base includes a cushion for support, the base has a suspended area located below the cushion, the suspended area is in communication with the external environment, and the opening is located below the cushion and communicates with the suspended area.

11. The sofa according to any one of claims 1 to 8, characterized in that The cavity walls spaced apart on both sides along the first direction are called first walls, and the cavity walls spaced apart on both sides along the second direction are called second walls. Each second wall is connected to the first walls on both sides. The cavity walls spaced apart on both sides along the third direction are called third walls. The first walls on both sides, the second walls on both sides, and the third walls on both sides enclose the cavity. The opening is formed in the first wall. The first direction intersects the second direction and the third direction, respectively. The second direction intersects the third direction.

12. The sofa according to any one of claims 1 to 8, characterized in that The playback device is a subwoofer.

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