CN210840028U

CN210840028U - Sound system, mini-point-to-sing terminal equipment and mini-type music room

Info

Publication number: CN210840028U
Application number: CN201921699975.2U
Authority: CN
Inventors: 张辉
Original assignee: Guangzhou Aimyunion Network Technology Co ltd
Current assignee: Guangzhou Aimyunion Network Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-23
Anticipated expiration: 2029-10-10

Abstract

The application relates to the technical field of mini-song ordering terminal equipment, in particular to a sound system of the mini-song ordering terminal equipment, the mini-song ordering terminal equipment and a mini-music room, wherein the sound system is used in the mini-music room, the mini-music room comprises a movable bottom plate, a top plate matched with the movable bottom plate and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate; the sound system comprises at least one group of main sound amplification boxes which are arranged on the rear side of the inner wall of the top plate and used for covering the sound production direction of the hearing range of a user, and diffusers are arranged at the bottoms of the main sound amplification boxes and above the inner wall of the rear side plate and used for decomposing reflected sound in the mini-type music room; the method and the device can avoid the situation of howling in the mini music room, and can also reduce the influence of reflected sound on direct sound by utilizing the diffraction effect of the diffuser, so that the sound field is more uniform.

Description

Sound system, mini-point-to-sing terminal equipment and mini-type music room

Technical Field

The application relates to the technical field of mini-song-requesting terminal equipment, in particular to a sound system of the mini-song-requesting terminal equipment, the mini-song-requesting terminal equipment and a mini-music room.

Background

At present, more and more public places introduce mini-singing-requesting terminal equipment, and the mini-singing-requesting terminal equipment is not only suitable for the requirements of one to two persons for singing, but also can provide relatively independent space, and avoids the influence of external environment when a user uses the mini-singing-requesting terminal equipment.

In the prior art, as one of mini-ordering terminal devices, a sound system is arranged in a mini-type music room, so that the hearing experience of a user can be met, and the mini-type music room is matched with an earphone, so that the user can be ensured to be involved in whole body and mind when singing a song; however, since the mini music room has a small and delicate structure, standing waves are likely to occur in the room contents, which causes resonance phenomena and uneven room frequency response, and generally shows that a user buzzes when singing bass.

In addition, sound waves are reflected after contacting a rigid interface, the absorption coefficient of the wall surface is too small, the reflected sound energy is large, the interference phenomenon is generated between the reflected sound energy and incident sound waves, a narrow-band comb filter effect is easily generated, uneven frequency spectrum response is caused, and due to the use of a microphone, a howling condition is easily generated in a small-size room, and a loudspeaker is damaged.

Disclosure of Invention

The objective of the present application is to solve at least one of the above technical drawbacks, especially the technical drawback of poor using effect of the mini-type music room sound system in the prior art.

In order to achieve the above object, the present application provides the following technical solutions:

the application provides a sound system of a mini-requesting terminal device, which is used in a mini-type music room, wherein the mini-type music room comprises a movable bottom plate, a top plate matched with the movable bottom plate and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate;

the sound system including install in the inner wall rear side of roof, with the at least a set of main public address case of the sound production direction that covers user's hearing scope, main bottom that expands the audio amplifier, be located diffuser is installed to posterior lateral plate inner wall top, is used for decomposing reflection sound in the miniature music room.

In one embodiment, at least one group of first surrounding sound boxes are arranged in the inner cavity of the diffuser at intervals and used for supplementing a sound field in the vertical direction;

the semi-closed space is located the inner wall front side of roof and with main public address case symmetric position department installs the second around the audio amplifier, is used for complementing the sound field in miniature music room makes main loudspeaker, first surround the sound field between the audio amplifier and the second and reach the equilibrium.

In one embodiment, the sound generating unit of the main sound amplifying box is a full-frequency speaker, and the sound generating direction is within an angle range downward taking the full-frequency speaker as a horizontal line; and the sound generating units of the first surround sound box and the second surround sound box are both medium-high frequency speakers.

In one embodiment, the sound emission direction of the sound emission unit of the main sound expansion box is in a range of 30-60 degrees downwards by taking the full-range loudspeaker as a horizontal line;

the sound production direction of the first surround sound box is in a range of-10 degrees to +10 degrees by taking a middle-high frequency loudspeaker as a horizontal line;

the sound production direction of the second surrounding sound box is within the range of 30-60 degrees downwards by taking the top plate as a horizontal line.

The application also provides mini-requesting terminal equipment, which comprises a requesting terminal and a sound system of the mini-requesting terminal equipment in any one of the embodiments; and the song requesting terminal is connected with the sound system.

The application also provides a mini music room, which comprises a movable bottom plate, a top plate matched with the movable bottom plate, and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate, wherein the mini ordering terminal equipment is arranged in the mini music room.

In one embodiment, resonance sound-absorbing cavities are symmetrically arranged below the inner walls of the side plates on the left side and the right side of the mini-type music room and used for absorbing low-frequency standing waves generated when the main sound expansion box, the first surrounding sound box and the second surrounding sound box work.

In one embodiment, the top of the resonance sound-absorbing cavity is connected with a cushion in a matching way, and a backrest is attached to the inner wall of the side plate above the cushion, close to the inner wall of the side plate;

the inner cavities of the backrest and the cushion are filled with sound-absorbing materials for absorbing direct sound and medium and low frequency standing waves, and the distance between the cushion and the movable bottom plate is within a set distance.

In one embodiment, the cavity panel of the resonance sound-absorbing cavity is of a thin plate structure, through holes are uniformly distributed on the surface of the cavity panel in a penetrating manner, and the inner cavity of the resonance sound-absorbing cavity is filled with a sound-absorbing material.

In one embodiment, the height of the seat cushion from the movable bottom plate is between 40cm and 70 cm;

the thickness of the thin plate is 5 mm-15 mm, and the absorption frequency band of the sound absorption material is low-frequency standing wave within the range of 50 Hz-200 Hz;

an included angle of 45-90 degrees is formed between the cavity panel far away from the side plate and the top of the movable bottom plate.

In one embodiment, the inner wall of the top plate is provided with modular sound absorbing bodies distributed in an array shape, and sliding rails are symmetrically arranged on the left side and the right side of each modular sound absorbing body and used for hanging a sound absorbing curtain.

In one embodiment, the main sound amplifying box and the second surrounding sound box are both matched and hung on the inner wall of the top plate through T-shaped through hole damping rubber nails and screws.

In one embodiment, the movable bottom plate comprises a keel layer formed by welding at least two rectangular pipes and a wood plate layer laid above the keel layer, and the movement of the semi-closed space is realized through symmetrically arranged movable feet at four corners of the bottom of the keel layer.

In one embodiment, the joints of the movable bottom plate, the side plates and the top plate are filled with damping rubber for isolating low-frequency transmission and reducing low-frequency resonance.

The mini-type music room comprises a movable bottom plate, a top plate matched with the movable bottom plate and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate; the semi-closed space can provide a relatively independent private space for a user, and the user can perform a chorus operation in the private space;

the sound system comprises at least one group of main sound amplification boxes which are arranged on the rear side of the inner wall of the top plate and used for covering the sound production direction of the hearing range of a user, and can provide all-dimensional stereo effect for the user; the bottom of the main sound amplifying box is provided with a diffuser above the inner wall of the rear side plate, when the main sound amplifying box works, the generated reflected sound is decomposed into a plurality of reflected sounds with lower energy in different directions through the diffraction effect of the diffuser, so that the influence of the reflected sound on direct sound is reduced, and the sound field is more uniform;

at least one group of first surrounding sound boxes are arranged in the inner cavity of the diffuser at intervals; the semi-closed space is positioned on the front side of the inner wall of the top plate and is provided with a second surrounding sound box at a position symmetrical to the main sound amplifying box;

the main sound amplifying box, the first surrounding sound box and the second surrounding sound box are arranged at positions to cover the hearing range of ears of a user, and the first surrounding sound box and the second surrounding sound box can supplement a reverse sound field of the main sound amplifying box, so that the whole sound field of the whole semi-closed space is favorably reduced, and the sound field effect in the semi-closed space has three-dimensional sense and surrounding sense; in addition, the main sound expansion box, the first surrounding sound box and the second surrounding sound box are all located at the middle upper position of the semi-closed space, so that a stereo field above the middle position can be created for a user, and the user can experience stereo effect no matter in one of sitting posture or standing posture;

moreover, the sound of the first surrounding sound box in the diffuser is refracted by the inclined plane corresponding to the cylindrical body in the diffuser, and is not obtained by directly picking up the sound of the sound box through the microphone, so that the positive feedback phenomenon of the sound in the semi-closed space, namely the howling condition, can be avoided by the arrangement mode of the first surrounding sound box, and the service life of the first surrounding sound box can be prolonged;

in addition, resonance sound-absorbing cavities are symmetrically arranged below the inner walls of the left side plate and the right side plate and used for absorbing low-frequency standing waves generated when the main sound expansion box, the first surrounding sound box and the second surrounding sound box work, and the sound field effect in the semi-closed space is improved.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a sound system of a mini-stick terminal device according to an embodiment;

FIG. 2 is a schematic view of the resonant sound-absorbing cavity, the seat cushion and the backrest according to an embodiment;

FIG. 3 is a schematic diagram of a resonant sound absorbing cavity structure according to an embodiment;

FIG. 4 is a schematic view of a modular sound absorbing body and sound absorbing curtain structure according to one embodiment;

FIG. 5 is a schematic structural diagram of a main sound amplifying box and a top plate according to an embodiment;

FIG. 6 is a schematic diagram of a movable floor structure according to one embodiment;

FIG. 7 is a schematic view of one embodiment of a cushion gum structure;

FIG. 8 is a schematic diagram of an embodiment of a dislocated connection structure.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The existing solution has the modes of feedback control, balance adjustment, frequency shift and the like, which all damage the tone quality and are not beneficial to the user experience.

Therefore, in order to solve the technical problem that the content of the mini music room in the prior art is easy to generate low-frequency standing waves, spectrum effects and the like, and the using effect is affected, the application provides a solution, which is specifically as follows:

in an embodiment, as shown in fig. 1, fig. 1 is a schematic structural diagram of a sound system of a mini-vocal terminal device according to an embodiment.

The embodiment provides a sound system of a mini-karaoke terminal device, which is used in a mini-music room, wherein the mini-music room comprises a movable bottom plate 1, a top plate 3 matched with the movable bottom plate 1 and a side plate 2 which is arranged between the movable bottom plate 1 and the top plate 3 and forms a semi-closed space together with the movable bottom plate 1 and the top plate 3; the semi-closed space can provide a relatively independent private space for a user, and the user can perform a chorus operation in the private space.

It can be understood that, curb plate 2 here indicates to install in the regional multiunit backup pad of border between roof 3 and portable bottom plate 1, and the compound mode of multiunit backup pad can be rectangular structure, also can be hexagonal structure, has seted up sealed door in wherein a set of backup pad, supplies the user to get into this semi-airtight space to after sealed door is closed, form relatively independent airtight space, be favorable to promoting the three-dimensional sound field effect in this airtight space, improve user experience.

The sound system may include at least one set of main speaker boxes 4 installed at the rear side of the inner wall of the top plate 3 to cover the sound emission direction of the hearing range of the user, and the main speaker boxes 4 may be configured to provide an omnidirectional sound field effect to the user; the bottom of main public address case 4, be located lateral plate 2's rear side inner wall top are installed diffuser 5 for decompose the reflection sound in the miniature music room.

Wherein, diffuser 5 sets up in the bottom of main public address case 4, and when main public address case 4 during operation, the reflection sound that its produced is decomposed into the reflection sound that the energy of a plurality of not equidirectional is lower through the diffraction effect of diffuser 5 to reduce the influence of reflection sound to direct sound, make the sound field more even.

Further, the main loudspeaker boxes 4 can be arranged into two groups, and the arrangement mode of the main loudspeaker boxes can include that the semi-closed space is symmetrically arranged at the upper left corner and the upper right corner of the rear side plate 2, so that the user experience can be enhanced.

In one embodiment, as shown in fig. 1, at least one set of first surround sound boxes 6 are installed at intervals in the inner cavity of the diffuser 5 to supplement the sound field in the vertical direction;

the semi-closed space is located the inner wall front side of roof 3 and with 4 symmetric positions department of main public address case installs the second around audio amplifier 7, is used for supplementing the sound field in miniature music room makes main public address case 4, first around the sound field between audio amplifier 6 and the second around audio amplifier 7 reach the equilibrium.

Further, when being provided with the main loudspeaker box 4 that expands of two sets of symmetry installations, in the left and right sides main loudspeaker box 4's bottom symmetry is installed and is diffused 5, semi-enclosed space is located the upper left corner and the upper right corner department symmetry of preceding curb plate 2 and installs second around audio amplifier 7, can strengthen user experience.

In one embodiment, the sound generating unit of the main loudspeaker box 4 is a full-frequency speaker, and the sound generating direction is within an angle range downward with the full-frequency speaker as a horizontal line, so that it can be ensured that the sound generated by the full-frequency speaker can cover the hearing range of the user.

The sound generating units of the first surround sound box 6 and the second surround sound box 7 are medium-high frequency speakers, and form sound frequencies of different levels with full-frequency speakers of the main sound amplifying box 4, so that user experience is improved.

In one embodiment, the sound emission direction of the sound emission unit of the main loudspeaker box 4 is in a range of 30 ° to 60 ° downward with the full-range speaker as a horizontal line; the sound production direction of the first surround sound box 6 is within a range of-10 degrees to +10 degrees with the medium-high frequency loudspeaker as a horizontal line; the sound production direction of the second surrounding sound box 7 is within the range of 30-60 degrees downwards by taking the top plate as a horizontal line.

Wherein, the sound production unit of main loudspeaker box 4 is full frequency loudspeaker, and the sound production direction include with full frequency loudspeaker is the horizontal line within range of 30 ~ 60 downwards, and the sound that full frequency loudspeaker sent can cover user's hearing scope in the setting in this scope.

The sound generating units of the first surround sound box 6 and the second surround sound box 7 are both medium-high frequency speakers, the sound generating direction of the first surround sound box 6 includes a range of-10 to +10 degrees taking the medium-high frequency speakers as a horizontal line, that is, the sound generating coverage of the first surround sound box 6 is a coverage of the first surround sound box 6 at the lowest position downward by-10 degrees, a coverage of the first surround sound box 6 at the lowest position to the highest position upward by +10 degrees, and the coverage can ensure that a user can feel the stereo surround sound effect no matter what posture the user performs singing or rest and the like.

The sound production direction of the second surrounding sound box 7 comprises that the top plate 3 is used as a horizontal line and faces downwards within the range of 30-60 degrees, the reverse sound field of the main sound amplification box 4 can be supplemented, and in addition, the arrangement of the first surrounding sound box 6 is beneficial to reducing the whole sound field of the whole semi-closed space, so that the sound field effect in the semi-closed space has stereoscopic impression and surrounding sense.

Moreover, because the sound of the first surround sound box 6 in the diffuser 5 is refracted through the inclined plane corresponding to the cylindrical body in the diffuser 5, and is not obtained by directly picking up the sound of the sound box through the microphone, the arrangement mode of the first surround sound box 6 can avoid the positive feedback phenomenon of the sound in the semi-closed space, namely, the whistling phenomenon, and further can prolong the service life of the first surround sound box 6.

Due to the superposition of the gains and the volumes of the multiple groups of sound boxes, the gains and the volumes of the sound production units in each sound box can be reduced under the condition that the tone quality and the volume meet the requirements in the process of user experience, and the phenomenon that the microphone howls when a user sings can be further avoided.

Further, since the region in which the low-frequency sound pressure generated in the semi-closed space is most concentrated is the bottom space region of the semi-closed space, it is necessary to effectively deal with the low-frequency standing wave in the low-frequency sound pressure and avoid a humming sound which is generated when the user sings a bass sound due to the low-frequency standing wave.

The sound system of the mini-requesting terminal equipment comprises a movable bottom plate 1, a top plate 3 matched with the movable bottom plate 1 and a side plate 2 which is arranged between the movable bottom plate 1 and the top plate 3 and forms a semi-closed space together with the movable bottom plate 1 and the top plate 3; the semi-closed space can provide a relatively independent private space for a user, and the user can perform a chorus operation in the private space.

The sound system comprises at least one group of main loudspeaker boxes 4 which are arranged on the rear side of the inner wall of the top plate 3 and cover the sound production direction of the hearing range of the user, and can provide all-dimensional stereo effect for the user; a diffuser 5 is arranged at the bottom of the main sound amplifying box 4 and above the inner wall of the rear side plate 2, when the main sound amplifying box 4 works, the generated reflected sound is decomposed into a plurality of reflected sounds with lower energy in different directions through the diffraction effect of the diffuser 5, so that the influence of the reflected sound on direct sound is reduced, and the sound field is more uniform; at least one group of first surrounding sound boxes 6 are arranged in the inner cavity of the diffuser 5 at intervals; the semi-closed space is located the inner wall front side of roof 3 and with 4 symmetric positions department of main public address case installs the second around audio amplifier 7.

The main sound amplifying box 4, the first surrounding sound box 6 and the second surrounding sound box 7 are arranged at positions which can cover the hearing range of ears of a user, and the first surrounding sound box 6 and the second surrounding sound box 7 can supplement a reverse sound field of the main sound amplifying box 4, so that the whole sound field of the whole semi-closed space can be reduced, and the sound field effect in the semi-closed space has three-dimensional effect and surrounding effect; in addition, the main loudspeaker box 4, the first surround sound box 6 and the second surround sound box 7 are all located at the middle upper position of the semi-closed space, so that a stereo field above the middle position can be created for a user, and the user can experience stereo effect no matter in sitting posture or standing posture.

The application also provides a mini-vocal-requesting terminal device, which comprises a vocal-requesting terminal and the sound system of the mini-vocal-requesting terminal device in any one of the above embodiments.

The sound system comprises at least one group of main loudspeaker boxes 4 which are arranged on the rear side of the inner wall of the top plate 3 and cover the sound production direction of the hearing range of a user, and the main loudspeaker boxes 4 are arranged to provide an omnidirectional sound field effect for the user.

A diffuser 5 is arranged at the bottom of the main sound amplifying box 4 and above the inner wall of the rear side plate 2, when the main sound amplifying box 4 works, the generated reflected sound is decomposed into a plurality of reflected sounds with lower energy in different directions through the diffraction effect of the diffuser 5, so that the influence of the reflected sound on direct sound is reduced, and the sound field is more uniform; at least one group of first surrounding sound boxes 6 are arranged in the inner cavity of the diffuser 5 at intervals and used for supplementing a sound field in the vertical direction.

The point-singing terminal is connected with a main loudspeaker box 4, a first surround loudspeaker box 6 and a second surround loudspeaker box 7 in the sound system, and when a user uses the point-singing terminal to perform singing, the point-singing terminal can play sound through the main loudspeaker box 4, the first surround loudspeaker box 6 and the second surround loudspeaker box 7, so that the user is provided with immersive experience.

The application also provides a mini-type music room, which comprises a movable bottom plate 1, a top plate 3 matched with the movable bottom plate 1 and a side plate 2 which is arranged between the movable bottom plate 1 and the top plate 3 and forms a semi-closed space together with the movable bottom plate 1 and the top plate 3; the semi-closed space can provide a relatively independent private space for a user, the user can perform the ordering operation in the space, and the mini ordering terminal device in the embodiment is installed in the mini music room.

As shown in fig. 2, fig. 2 is a schematic structural view of a resonance sound absorption cavity 8, a seat cushion 9 and a backrest 10 according to an embodiment.

In fig. 2, a resonant sound-absorbing cavity 8 is further arranged in the semi-enclosed space, the resonant sound-absorbing cavity 8 is symmetrically arranged on the left side and the right side below the inner wall of the side plate 2, and is used for absorbing the low-frequency standing wave generated when the main sound-expanding box 4, the first surrounding sound box 6 and the second surrounding sound box 7 work, so that the sound field effect in the semi-enclosed space is improved, and the integral tone quality is further improved.

Finally, the sound field balance method adopts a completely symmetrical layout in a semi-closed space so as to further ensure the balance of the sound field.

In one embodiment, as shown in fig. 2, a seat cushion 9 is fittingly connected to the top of the resonant sound-absorbing cavity 8; in the embodiment, in order to enable a user to be far away from the wave crests and the wave troughs of the standing waves, by measuring and calculating the modal attenuation of the standing waves in the semi-closed space, the position of the seat is set to avoid the corner of a room with the largest standing wave influence, so that the seat cushion 9 is installed at the top of the resonance sound-absorbing cavity 8 installed above the movable bottom plate 1 and symmetrically arranged, and enough space is reserved between the seat cushions 9 for the user to use, so that the use space can be saved, the user can be guaranteed to have a rest area in the semi-closed space, and the user experience is improved.

In one embodiment, the height of the cushion 9 from the movable bottom plate 1 is between 40cm and 70 cm; in the embodiment, the height difference of different users is considered, the height of the seat cushion 9 can be set between 40cm and 70cm, and the setting of the height range can ensure that the users can sit and stand conveniently and the integral sound effect in the semi-closed space is not influenced.

In one embodiment, as shown in fig. 2, the seat cushion 9 is attached to the inner wall of the side plate 2 near the upper part of the inner wall of the side plate 2 to form a backrest 10.

Consider that the user probably leans on curb plate 2 when sitting down, but curb plate 2's structure and material need consider whether can keep apart and absorb sound to reduce the interference to external environment when the user sings in this semi-closed space, and the interference of external environment to the interior sound effect of semi-closed space, therefore probably use the glass material of keeping apart the better effect in the material selection of curb plate 2, the use of this material can cause the user to lean on and form the temperature difference when curb plate 2, lead to user experience to feel worsen.

Therefore, in this embodiment, the seat cushion 9 is close to the upper portion of the inner wall of the side plate 2 and is attached to the backrest 10 on the inner wall of the side plate 2, so as to provide a comfortable use environment for users.

In one embodiment, the inner cavities of the backrest 10 and the cushion 9 are filled with sound absorbing materials for absorbing direct sound and medium and low frequency standing waves.

Considering that the inner cavities of the backrest 10 and the cushion 9 are filled with materials with soft texture, so as to provide a more comfortable use environment for users; therefore, in the present embodiment, sound absorbing materials, such as glass fiber and sponge, can be filled in the inner cavities of the backrest 10 and the cushion 9, so as to not only ensure the comfort of the user, but also assist in absorbing unnecessary direct sound, low-frequency standing waves and the like generated in the semi-enclosed space to a certain extent, which is helpful for improving the sound field effect in the semi-enclosed space.

In one embodiment, as shown in fig. 3, fig. 3 is a schematic structural view of a resonant sound-absorbing cavity 8 according to an embodiment; in fig. 3, the cavity panel of the resonance sound-absorbing cavity 8 is made of a thin plate 81 with a thickness of 5mm to 15mm, and the thickness range can not only bear the weight of users with different body types, but also reduce the weight of the whole semi-closed space to a certain extent, so that the movement is convenient.

In one embodiment, as shown in fig. 3, an included angle of 45 ° to 90 ° is formed between the cavity panel far away from the side plate 2 and the top of the movable bottom plate 1; therefore, the cushion 9 at the top can be stably supported, the area of the cavity panel can be increased, and the absorption of low-frequency standing waves is facilitated.

In one embodiment, as shown in fig. 3, through holes 82 are uniformly distributed through the surface of the cavity panel of the resonance sound-absorbing cavity 8, and through the uniformly distributed through holes 82, low-frequency standing waves and unnecessary direct sound formed in the semi-enclosed space can be gathered to the inner cavity of the resonance sound-absorbing cavity 8, and the flying of the material filled in the resonance sound-absorbing cavity 8 can be avoided.

In one embodiment, as shown in fig. 3, the inner cavity of the resonant sound-absorbing cavity 8 is filled with a sound-absorbing material 83 for absorbing the low-frequency standing wave in the frequency range of 50Hz to 200 Hz.

In this embodiment, the sound absorbing material 83, such as glass fiber and sponge, may be filled in the inner cavity of the resonance sound absorbing cavity 8, so that the inner space of the resonance sound absorbing cavity 8 may be utilized, and the low-frequency standing wave generated in the semi-closed space may be absorbed to some extent, which is helpful to improve the sound field effect in the semi-closed space.

In particular, the sound-absorbing material 83 can widen the absorption range of the low-frequency standing wave, and can effectively absorb the low-frequency standing wave in the frequency range of 50Hz to 200 Hz.

In one embodiment, as shown in fig. 4, fig. 4 is a schematic structural view of a modular sound absorbing body 19 and a sound absorbing curtain 18 according to one embodiment; in fig. 4, the sound body 19 is inhaled to the modularization that roof 3 inner wall was provided with to be array form and distributes, and the setting of this sound body 19 is inhaled to the modularization, can enough absorb half airtight space top unnecessary direct sound, can reduce the influence of mixed and disorderly reflection sound again, helps the reduction of whole sound field in this half airtight space, like this, even the user is for sitting the state, also can experience good sound field effect.

In one embodiment, slide rails are symmetrically installed on the top plate 3 near the left and right side plates 2, and a sound-absorbing curtain 18 can be suspended in the slide rails, as shown in fig. 4, when a user sings, the user can select the pulling-open degree of the sound-absorbing curtain 18 according to the user's own condition, so that the width of the sound-absorbing curtain 18 can be changed to adjust the sound-absorbing amount of the side plates 2 in the semi-closed space, and strong reflected sound caused by the rigid side plates 2 can be avoided, thereby improving the sound field effect in the room.

In one embodiment, as shown in fig. 5, fig. 5 is a schematic structural diagram between the main loudspeaker box 4 and the top plate 3 of one embodiment; in fig. 5, the main loudspeaker box 4 and the second surround sound box 7 are both hung on the inner wall of the top plate 3 through the T-shaped through hole damping rubber nails 14 and screws.

In this embodiment, utilize T type through-hole shock attenuation plastic nail 14 and screw cooperation to use, hoist and mount main public address case 4 and second around audio amplifier 7 in the top inner wall of curb plate 2, so not only can reduce the vibrations that produce when main public address case 4 and second around audio amplifier 7 use, convenient dismantlement again.

Specifically, the implementation may include the following steps:

(1) the T-shaped through hole damping rubber nail 14 penetrates through the opening in the top plate 3 from the upper part of the top plate 3 to the lower part, is in contact with the upper surface of the top plate 3 through the lower surface of the upper circular ring and is placed on the top plate 3;

(2) the long screw 15 penetrates through the through hole of the T-shaped through hole damping rubber nail 14 from the upper part of the T-shaped through hole damping rubber nail 14 downwards, and the long screw 15 is longer than the T-shaped through hole damping rubber nail 14 in length, so that one section of the long screw 15 is exposed and used for being locked with the sound box body;

(3) the pre-buried nut 16 that has of lower surface of audio amplifier box roof 3, the screw thread section that above-mentioned long screw 15 exposes and above-mentioned nut 16 cooperation locking realize that the audio amplifier is taut towards the roof direction, simultaneously because T type through-hole shock attenuation plastic pin 14 is soft material, realize the soft contact of audio amplifier and roof to reach absorbing purpose.

In one embodiment, as shown in fig. 6, fig. 6 is a schematic structural diagram of the movable floor 1 of one embodiment; in fig. 6, the movable floor 1 includes a keel layer 11 formed by welding at least two rectangular pipes, and a wood plate layer 12 laid on the keel layer 11.

In this embodiment, portable bottom plate 1 is provided with keel layer 11, and keel layer 11 is the frame construction that many rectangular tubes welded formed, and the surface of keel layer 11 is mated formation has wood sheet layer 12, makes wood sheet layer 12 and ground form the difference in height through setting up keel layer 11, and simultaneously, the material of plank can avoid the stronger acoustic reflection in ground to influence holistic sound field effect, reaches the problem that reduces interior low frequency resonance of room.

In one embodiment, as shown in fig. 6, the bottom four corners of the keel layer 11 realize the movement of the semi-closed space through symmetrically arranged moving feet 13.

In this embodiment, the bottom four corners on keel layer 11 supports on ground through the removal lower margin 13 of taking cushion gum 17 to avoid the rigid contact on plank and ground, can play certain isolation low frequency transmission's effect, be convenient for simultaneously remove.

In one embodiment, as shown in FIG. 7, FIG. 7 is a schematic structural view of one embodiment of the cushion rubber 17; in fig. 7, the joints of the movable bottom plate 1, the side plates 2 and the top plate 3 are all filled with damping rubber 17 to reduce the rigid connection between the whole frame structure of the semi-closed space and the components, so that a certain effect of isolating low-frequency transmission can be achieved, and the problem of reducing low-frequency resonance in the semi-closed space is solved.

In one embodiment, as shown in fig. 8, fig. 8 is a schematic view of an embodiment of the dislocated connection structure 20; in fig. 8, the joint parts between the top plate 3, the side plate 2 and the movable bottom plate 1 of the semi-closed space all use the dislocation type connecting structure 20, and the joint parts between the dislocation type connecting structure 20 and the top plate 3, the side plate 2 and the movable bottom plate 1 are wrapped by the U-shaped damping sealing rubber strip 21, so that the path of sound wave propagation is staggered, and a certain sound insulation effect is achieved.

In one embodiment, a soft adhesive tape is further disposed at a joint portion between the top plate 3, the side plate 2 and the movable bottom plate 1 of the semi-enclosed space, so as to reduce a vibration problem caused by rigid connection between components, and simultaneously, to perform a sealing function of isolating air inside and outside the space, and to isolate noise in an external environment.

In one embodiment, the corners of the semi-closed space are designed to be oblique angles, so as to avoid strong standing wave products caused by right-angled corners, and the oblique angle diffuser 5 is arranged to enable medium-high frequency incident sound waves in the semi-closed space to form sector diffusion, so that the sound field distribution in the semi-closed space is more uniform.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A sound system of mini-point singing terminal equipment is characterized in that: the sound system is used in a mini-type music room, wherein the mini-type music room comprises a movable bottom plate, a top plate matched with the movable bottom plate and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate;

the sound system including install in the inner wall rear side of roof, with the at least a set of main public address case of the sound production direction that covers user's hearing scope, main bottom, the position that expands the audio amplifier the diffuser is installed to the rear side inner wall top of curb plate, is used for decomposing reflection sound in the miniature music room.

2. The audio system of a mini-stick terminal device according to claim 1, wherein: at least one group of first surrounding sound boxes are arranged in the inner cavity of the diffuser at intervals and used for supplementing a sound field in the vertical direction;

3. The audio system of the mini-stick terminal device according to claim 2, wherein: the sound production unit of the main sound expansion box is a full-frequency loudspeaker, and the sound production direction is within an angle range downward by taking the full-frequency loudspeaker as a horizontal line; and the sound generating units of the first surround sound box and the second surround sound box are both medium-high frequency speakers.

4. The audio system of a mini-stick terminal device according to claim 3, wherein: the sound production direction of the sound production unit of the main sound expansion box is within the range of 30-60 degrees downwards by taking the full-frequency loudspeaker as a horizontal line;

5. A mini-click terminal device is characterized in that: a sound system comprising a chorus terminal and a mini chorus terminal device according to any one of claims 1-4; and the song requesting terminal is connected with the sound system.

6. A mini music room, which is characterized in that the mini music room comprises a movable bottom plate, a top plate matched with the movable bottom plate and a side plate which is arranged between the movable bottom plate and the top plate and forms a semi-closed space together with the movable bottom plate and the top plate, wherein the mini singing-requesting terminal equipment as claimed in claim 5 is arranged in the mini music room.

7. The mini music room of claim 6, wherein: the left and right sides in this mini music room the resonance is installed to the inner wall below symmetry of curb plate and is inhaled the sound cavity for absorb main loudspeaker box, first encircle the audio amplifier and the second encircle the low frequency standing wave that the audio amplifier during operation produced.

8. The mini music room of claim 7, wherein: the top of the resonance sound-absorbing cavity is connected with a cushion in a matching way, and the cushion is attached to the inner wall of the side plate above the inner wall of the side plate and is provided with a backrest;

9. The mini music room of claim 8, wherein: the cavity panel of the resonance sound-absorbing cavity is of a thin plate structure, through holes are uniformly distributed in the surface of the cavity panel in a penetrating mode, and sound-absorbing materials are filled in the inner cavity of the resonance sound-absorbing cavity.

10. The mini music room of claim 9, wherein: the height between the cushion and the movable bottom plate is 40 cm-70 cm;

11. The mini music room of claim 6, wherein: the roof inner wall is provided with the modularization that is array form and distributes and inhales the sound body, the slide rail is installed to the left and right sides symmetry that the sound body is inhaled to the modularization for hang and inhale the sound curtain.

12. The mini music room of claim 6, wherein: the main sound expansion box and the second surrounding sound box are matched and hoisted on the inner wall of the top plate through T-shaped through hole damping rubber nails and screws.

13. The mini music room of claim 6, wherein: but movable bottom plate includes the keel layer that forms by two rectangular tubes welding at least and the plank layer of laying in the top on keel layer, the removal lower margin that the bottom four corners on keel layer set up through the symmetry realizes the removal in semi-enclosed space.

14. The mini music room of claim 6, wherein: the movable bottom plate, the side plates and the top plate are all filled with damping rubber at the joints for isolating low-frequency transmission and reducing low-frequency resonance.