CN109309891B

CN109309891B - Audio equipment and sound effect adjusting method thereof

Info

Publication number: CN109309891B
Application number: CN201811131905.7A
Authority: CN
Inventors: 杨朝勇; 庞泽俊; 张金; 彭国虎
Original assignee: Goertek Techology Co Ltd
Current assignee: Rongcheng goer Technology Co.,Ltd.
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-11-10
Anticipated expiration: 2038-09-27
Also published as: CN109309891A

Abstract

The invention relates to the technical field of audio equipment, wherein in the prior art, the power, the sound effect and the like of the audio equipment are fixed after leaving a factory, the playing quality of the audio equipment in playing rooms with different sizes is different, and the audio equipment with the same rated power cannot adapt to the playing rooms with different sizes; the middle frame is provided with a dilatation cavity, and a sound cavity channel for communicating the two cavities is arranged between the back sound cavity and the dilatation cavity of the loudspeaker assembly; the adjusting structure is used for closing the sound cavity channel, when the adjusting structure is in a first state or a second state, the sound cavity channel is correspondingly in a closed or communicated state, and the closed or communicated state between the rear sound cavity and the expansion cavity is correspondingly realized. This application realizes the on-off control of back sound cavity and dilatation cavity, makes it can both send the ideal audio when the speaker of different rated power plays to make it be applicable to the room of equidimension not and use.

Description

Audio equipment and sound effect adjusting method thereof

Technical Field

The invention relates to the technical field of audio equipment, in particular to audio equipment. In addition, the invention also relates to a sound effect adjusting method of the audio equipment.

Background

The audio equipment is modern electrical equipment commonly used, and the factor that influences audio equipment result of use has a lot, and the reasonable space playback audio that forms just can make audio equipment's result of use promote.

In general, the matching of the audio device power to the size of the playing space used needs to be taken into account when setting up the audio device. The sound effect of the audio equipment can achieve the expected ideal effect only by reasonably matching the two, no matter the small playing space is matched with the high-power audio equipment, or the large playing space is matched with the low-power audio equipment, the playback sound effect of the audio equipment can be adversely affected, and the distortion phenomenon can occur during playing, so that the audio equipment can generate high-quality sound only by being used in a matched environment.

However, the power of the existing audio devices on the market is fixed when leaving the factory, so that the application range of the same audio device is limited, and users must adopt audio devices with corresponding power in playing spaces with different sizes, thereby increasing the use cost of the users in different playing spaces and different playing scenes;

in summary, how to provide an audio device capable of adjusting sound effects to adapt to playing spaces of various sizes is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an audio device, which has an adjustable playing effect, and is suitable for playing spaces of various sizes, and is convenient for users to use.

Another objective of the present application is to provide a sound effect adjusting method of the audio device.

In order to achieve the above purpose, the invention provides the following technical scheme:

an audio device comprising a center frame and at least two independently disposed and independently controlled speaker assemblies;

the middle frame is provided with a capacity expansion cavity, and a sound cavity channel for communicating the two cavities is arranged between the rear sound cavity of the loudspeaker assembly and the capacity expansion cavity;

the sound cavity channel is correspondingly in a closed or communicated state, and the sound cavity channel corresponds to the closed or communicated state between the rear sound cavity and the expansion cavity.

Preferably, the adjusting structure includes: the adjusting pieces are used for adjusting the opening and closing of the corresponding sound cavity channel, and the moving device is arranged in the expansion cavity, the adjusting pieces are clamped with or separated from the moving device, and the moving device drives the adjusting pieces to move synchronously in a clamping state; the adjusting piece at the first position controls the sound cavity channel to be closed, and the adjusting piece at the second position controls the sound cavity channel to be communicated.

Preferably, the adjustment member includes:

the rear sound cavity control valve is movably arranged at the connecting position of the external connecting port of the expansion cavity and the sound cavity channel so as to realize sealing or communication, and a valve sealing device used for strengthening the sealing of the sound cavity channel and the expansion cavity is arranged on the rear sound cavity control valve;

the telescopic valve body is fixedly connected with the rear sound cavity control valve, is provided with a telescopic end and is clamped with the mobile device in an extending state.

Preferably, the moving device is used for driving the telescopic valve body to move towards a first direction; the middle frame is provided with an elastic piece which enables the telescopic valve body to move along the direction opposite to the first direction, so that when the moving device is reset, the telescopic valve body is reset along the direction opposite to the first direction.

Preferably, a groove is arranged outside the expansion cavity, and the outside of the groove is fixedly connected with the loudspeaker assembly; the elastic piece is arranged in the groove and connected with the back sound cavity control valve.

Preferably, the voice control device further comprises a travel switch for sensing that the rear sound cavity control valve moves in place, the two travel switches are respectively arranged at a first travel end of the rear sound cavity control valve or at a second travel end of the moving device, the two travel switches are respectively connected with a power device for driving the moving device to move, and the power device receives a signal of the travel switch in place and controls the moving device to stop moving.

Preferably, the moving device comprises a cylinder support with a circumferential support table surface for supporting at least two telescopic valve bodies in the circumferential direction to move; the cylinder support is arranged in the expansion cavity and linearly moves through a connecting transmission device.

Preferably, two ends of the telescopic valve body are respectively arranged in the sound cavity channel and the external communication port of the expansion cavity body, and slide along the radial direction of the sound cavity channel and the radial direction of the external communication port, and the sliding direction is the same as the moving direction of the moving device.

Preferably, the adjusting structure and the speaker assembly are both in control connection with a control device, and the control device is configured to turn on the corresponding speaker assembly according to a user instruction and control the adjusting structure to communicate the sound cavity channel of the speaker assembly in an on state.

Preferably, the control device further comprises:

the voice acquisition and analysis device is used for acquiring user control voice and analyzing to obtain the size information of the playing scene in the user control voice;

and the controller is connected with the voice acquisition and analysis device and used for controlling the opening of the corresponding number of the loudspeaker assemblies according to the preset relationship between the playing scene size information and the loudspeaker power and the volume of the back sound cavity of the loudspeaker assemblies, and controlling the adjustment piece and the mobile device to work so as to communicate the back sound cavity of the loudspeaker assemblies with the expansion cavity in the opening state.

Preferably, the speaker units in the speaker assembly are all connected to the controller, and the controller realizes independent control of all the speaker units.

A sound effect adjusting method of audio equipment, wherein the audio equipment comprises the audio equipment in any one of the above items; the method comprises the following steps:

acquiring information of the size of a playing scene;

controlling to turn on or turn off a plurality of loudspeaker assemblies according to the information of the size of the playing scene, so that the number of the loudspeaker assemblies corresponds to the size of the playing scene; and

the control adjusting structure is used for communicating the sound cavity channel of the loudspeaker assembly in an opening state, and the control adjusting structure is used for closing the sound cavity channel of the loudspeaker assembly in a closing state, so that the rear sound cavity and the expansion cavity are sealed or communicated correspondingly.

In the audio equipment provided by the invention, the adjusting structure has at least two functional states and is used for realizing the communication and the sealing of the sound cavity channel and the expansion cavity. This application is through the state change of adjusting the structure, realizes the intercommunication or the confined control of each back sound cavity and dilatation cavity to change the actual capacity of each back sound cavity, can know according to speaker theory of operation, when changing the volume of sound cavity behind the speaker, can realize the adjustment change of the audio of speaker, thereby make audio equipment be applicable to the room of equidimension not and use. When the rated power of the loudspeaker is changed, the corresponding volume of the back sound cavity is also changed correspondingly, so that the loudspeaker can send out an ideal sound effect; this patent can realize that the rear chamber volume that it corresponds also can change when the rated power of speaker changes the back to it all is ideal audio that it sent when making its audio equipment play under its arbitrary rated power of broadcast of reservation, thereby makes audio equipment be applicable to the room of equidimension not and uses.

The application also provides a sound effect adjusting method of the audio equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an audio device provided in the present invention;

FIG. 2 is a schematic diagram of an external structure of an audio device according to the present invention;

FIG. 3 is an exploded view of an audio device provided by the present invention;

FIG. 4 is a right side view of a speaker assembly provided by the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a left side view of an adjustment member provided by the present invention;

FIG. 7 is a front cross-sectional view of an adjustment member provided in accordance with the present invention;

FIG. 8 is a right side view of an adjustment member provided by the present invention;

FIG. 9 is a front view of a center provided by the present invention;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9;

FIG. 11 is a sectional view taken along line B-B of FIG. 9;

fig. 12 is a cross-sectional view of an opposite side closed state of an audio device provided by the present invention;

fig. 13 is a cross-sectional view of an opposite side communication state of an audio device provided by the present invention;

FIG. 14 is a cross-sectional view of a first embodiment of the present invention;

FIG. 15 is a cross-sectional view of a second embodiment of the present invention;

FIG. 16 is a cross-sectional view of a third embodiment of the present invention;

FIG. 17 is a cross-sectional view of a fourth embodiment of the present invention.

In FIGS. 1-17:

the loudspeaker comprises a loudspeaker assembly 1, a loudspeaker single body 11, a loudspeaker outer cover 12, a loudspeaker sealing EVA13, a loudspeaker support 14, a support sealing EVA15, a loudspeaker rear shell 16, a rear shell sealing EVA17 and a sound cavity channel 18;

the middle frame 2, the adjusting piece 21, the rear sound cavity control valve 211, the electromagnetic valve 212, the telescopic iron column 2122, the return spring 213, the electromagnetic valve seal EVA214, the valve seal EVA215, the first through hole 201 and the second through hole 202;

bottom cover 22, bottom cover sealing EVA23, top cover 24, controller 25;

rack fixing seat 26, rack 27, gear 28, motor 29, lower travel switch 30 and upper travel switch 31.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide an audio device, the playing effect of which can be adjusted, which can be suitable for playing spaces of various sizes and is convenient for users to use. Another core of the present application is to provide a sound box including the audio device and a sound effect adjusting method of the audio device.

Please refer to fig. 1 to 17, wherein fig. 1 is a schematic structural diagram of an audio device; FIG. 2 is a schematic diagram of an external configuration of an audio device; FIG. 3 is an exploded schematic view of an audio device; FIG. 4 is a right side view of the speaker assembly; FIG. 5 is a sectional view taken along line A-A of FIG. 4; FIG. 6 is a left side view of the adjustment member; FIG. 7 is a front cross-sectional view of the adjustment member; FIG. 8 is a right side view of the adjustment member; FIG. 9 is a front view of the middle frame; FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9; FIG. 11 is a sectional view taken along line B-B of FIG. 9; fig. 12 is a cross-sectional view of the opposite side closed state of the audio device; fig. 13 is a sectional view of the opposite side communication state of the audio device; FIG. 14 is a cross-sectional view of a first embodiment; FIG. 15 is a cross-sectional view of a second embodiment; FIG. 16 is a cross-sectional view of a third embodiment; FIG. 17 is a cross-sectional view of a fourth embodiment.

The application provides an audio device, mainly includes center 2 and at least two speaker subassembly 1 that independently set up and can independently control in the structure.

The middle frame 2 is provided with a capacity expansion cavity, and a sound cavity channel 18 for communicating the two cavities is arranged between the back sound cavity and the capacity expansion cavity of the loudspeaker component 1; the adjusting structure is used for sealing the sound cavity channel, when the adjusting structure is in a first state or a second state, the sound cavity channel 18 is correspondingly in a sealed or communicated state, and the sealed or communicated state between the rear sound cavity and the expansion cavity is correspondingly realized.

Specifically, the adjusting structure is used for closing the capacity expansion cavity and the corresponding back sound cavity, when the adjusting structure is in the first state, the sound cavity channel 18 is closed, and the back sound cavity is isolated from the capacity expansion cavity, so that the original size of the back sound cavity is kept; when the adjustment structure is in the second state, the sound cavity passage 18 is opened to communicate the back sound cavity with the volume expansion cavity, so as to increase the back sound cavity.

It should be noted that, the speaker assembly 1 is an assembly having the speaker unit 11, wherein the speaker unit 11 can be mounted in the speaker housing through the speaker bracket 14 or the fixing plate, and the inner cavity of the speaker housing can be divided into a front sound cavity and a rear sound cavity due to the structural characteristics of the speaker unit 11, and the prior art can be referred to for the arrangement form of the front sound cavity and the rear sound cavity. It should be noted that, when at least two speaker units 11 are disposed in one speaker assembly 1, the back sound cavities of the speaker units 11 may be communicated to form the same cavity, and in addition, the front sound cavities of the speaker units 11 may also be the same cavity.

The middle frame 2 is a frame structure for carrying the loudspeaker assembly 1 and is also a main structure of the audio equipment, the middle frame 2 is provided with a dilatation cavity, and the dilatation cavity is of a closed structure and is mainly used for being selectively communicated with or closed by the back sound cavity so as to achieve the purpose of adjusting the volume of the back sound cavity.

The back sound cavity of the loudspeaker component 1 is connected with the sound cavity channel 18, the sound cavity channel 18 can be a through hole or a tubular channel structure and is used for communicating the back sound cavity with the capacity expansion cavity, and under the communication state, the actual capacity of the back sound cavity is the sum of the original capacity of the back sound cavity and the capacity of the capacity expansion cavity, so that the capacity of the back sound cavity is improved. The adjusting structure arranged at the communication position of the back sound cavity and the expansion cavity can realize the sealing and the communication of the back sound cavity and the expansion cavity.

In the audio equipment that this application provided, adjust the structure and have two at least functional state for realize communicating or sealing back tone cavity and dilatation cavity. This application is through the state change of adjusting the structure, realizes the intercommunication or the confined control of each back sound cavity and dilatation cavity to change the actual capacity of each back sound cavity, can know according to speaker theory of operation, when changing the volume of sound cavity behind the speaker, can realize the adjustment change of the audio of speaker, thereby make audio equipment be applicable to the room of equidimension not and use.

This patent can realize when the rated power of speaker changes the back, and its back sound cavity volume that corresponds also can correspond the change to when making its audio equipment play under its predetermined arbitrary rated power of broadcast, it all is ideal audio that sends, thereby makes audio equipment be applicable to the room of equidimension not and uses.

Generally, the enclosure of the speaker assembly 1, the speaker support 14 and the speaker unit 11 may be provided with sealing means at the connecting positions thereof, so as to strictly divide and seal the front sound cavity and the rear sound cavity.

Preferably, the expansion cavity may be a cavity disposed in the middle of the middle frame 2, at least two speaker assemblies 1 are disposed around the expansion cavity, and the back sound cavities of all the speaker assemblies 1 are connected to the expansion cavity through the sound cavity channel 18, and by controlling the on/off of the sound cavity channel, the back sound cavities and the expansion cavity may be communicated or sealed, that is, the back sound cavities are expanded and maintained.

Preferably, in the above structure, at least 4 speaker assemblies 1 may be disposed around the middle cavity, so as to form a multi-angle speaker arrangement, and similarly, the rear sound cavities of the speaker assemblies 1 are all connected with the expansion cavity through the sound cavity channel.

In the present application, at least two loudspeaker assemblies 1 are included, wherein there may be two, three or more.

On the basis of the above embodiment, the adjustment structure includes: the adjusting parts 21 are used for adjusting the corresponding sound cavity channel to be communicated or closed, and the moving device is arranged in the expansion cavity, the adjusting parts 21 can be clamped with or separated from the moving device respectively, and the moving device can drive the adjusting parts 21 to move synchronously in a clamping state; the adjustment member 21 in the first position controls the closing of the sound cavity passage 18 and the adjustment member in the second position controls the communication of the sound cavity passage 18.

It should be noted that, a moving device is disposed in the expansion cavity, and the moving device may be a mechanical control moving device, an electrical control moving device, or a manual adjustment structure, and in consideration of the structural integrity of the audio device, a mechanical and electrical control type moving device is preferred. The movement of the moving means is a linear movement or a curved movement, and may be a rotational movement. For purposes of this description, the following is referred to collectively as movement.

It should be noted that the adjusting member 21 can be engaged with or disengaged from the moving device by stretching or moving, and in the engaged state, please refer to fig. 12, the moving device and the adjusting member 21 are integrated. At this time, the moving device moves upward to drive the adjusting member 21 to move upward; the moving means moves downward and the adjuster 21 can move downward. The adjusting member 21 and the moving device may be one-way clamping-limited (i.e. supporting-limited) or two-way clamping-limited. During one-way joint is spacing, mobile device moves down, and adjusting part 21 loses mobile device's support, because the effect of dead weight effect or the effect of the elastic component that resets that sets up on it, adjusting part 21 realizes that the return stroke resets. During the two-way clamping limiting, the moving device moves downwards, the adjusting piece 21 synchronously moves downwards, and return resetting is realized.

The adjusting piece 21 arranged at the communication position of the back sound cavity and the expansion cavity can be used for controlling the communication or the sealing of the back sound cavity and the expansion cavity, the adjusting piece 21 can be connected with and separated from the moving device in a clamping manner through moving, rotating or stretching, the moving device can drive the adjusting piece 21 connected with the moving device to move, the adjusting piece 21 at least comprises two positions in moving, and the two positions respectively realize the sealing and the communication of a sound cavity channel.

Alternatively, the structure of the adjusting structure can also be realized by other ways, and is not limited to the case provided by the above embodiments.

On the basis of the above-described embodiment, the adjusting member 21 specifically includes the back sound chamber control valve 211 and the telescopic valve body.

The external connection communicating port and the voice cavity channel 18 connecting position of the rear voice cavity control valve 211, which is movably arranged in the expansion cavity, can be of a plate-shaped structure, the connecting position is covered and sealed by moving or rotating, a valve sealing device used for reinforcing the voice cavity channel 18 and the expansion cavity to be sealed is arranged on the rear voice cavity control valve 211, and the valve sealing device can be soft rubber or other forms.

The telescopic valve body is fixedly connected with the rear sound cavity control valve 211 and is used for driving the rear sound cavity control valve 211 to move. The telescopic valve body is provided with a telescopic end and can be clamped with the mobile device in an extending state. In the clamped state, the moving device drives the telescopic valve body to move, and the telescopic valve body drives the rear sound cavity control valve 211 to move.

The moving device may be a moving member for driving the telescopic valve body to move in two directions, and the moving device needs to have a supporting portion for the adjusting member in both directions, for example, the adjusting member 21 may be inserted into a slot of the moving device, and the moving device may drive the moving device to move in two directions. Of course, the telescopic valve body may be driven to move in one direction only.

On the basis of the embodiment, the moving device is used for driving the telescopic valve body to move towards the first direction; the middle frame 2 is provided with an elastic piece which enables the telescopic valve body to move along the reverse direction of the first direction, so that when the moving device is reset, the telescopic valve body is reset along the reverse direction of the first direction.

In this embodiment, through set up the elastic component on the center to make the elastic component act on flexible valve body, be convenient for flexible valve body when not receiving mobile device control, can automatic re-setting, get back to initial condition, on needing to explain, initial condition can be for the state that seals back sound cavity and dilatation cavity intercommunication. Of course, other connections are possible.

Alternatively, the elastic member may be disposed on the middle frame 2, and of course, may also be disposed on the adjusting member 21, or disposed in the relative movement space between the adjusting member 21 and the middle frame 2, and may be adjusted according to the specific use situation.

On the basis of the embodiment, the outside of the expansion cavity is provided with a groove, and the outside of the groove is fixedly connected with the loudspeaker component 1; the elastic member is disposed in the groove and connected to the rear sound cavity control valve 211.

Referring to fig. 6 to 8, the elastic member may be embodied as a return spring 213, and the return spring is disposed in the groove, so that the expansion space of the return spring 213 can be determined, and movement in other directions can be avoided.

On the basis of any one of the above embodiments, the moving device is a column support having a circumferential support table for supporting at least two telescopic valve bodies to move in the circumferential direction; the cylinder support is arranged in the expansion cavity and linearly moves through the connection transmission device.

It should be noted that, in this embodiment, the moving device is specifically in a shape of a cylinder, and a step surface or a supporting surface is provided on the cylinder, so that when the cylinder moves along the axial direction, the step surface or the supporting surface can support the adjusting member 21, so as to realize that the cylinder moves to drive the adjusting member 21 to move.

On the basis of any one of the above embodiments, two ends of the telescopic valve body are respectively disposed in the external communication ports of the sound cavity channel 18 and the expansion cavity, and can slide along the radial direction of the sound cavity channel 18 and the radial direction of the external communication ports, and the sliding direction is the same as the moving direction of the moving device.

This application realizes the adjustment to the sound cavity capacity behind the speaker through setting up mobilizable regulation structure that can communicate, seal the linkage path of sound cavity passageway 18 and dilatation cavity, and of course, this adjustment process can be through user's manual regulation, also can realize automatic control through circuit control's mode.

On the basis of any one of the embodiments of the present application, the present invention further includes a control device for controlling the operation of the adjusting structure according to a user instruction, and the control device is in control connection with both the adjusting structure and the speaker assembly 1. The control device is used for opening the corresponding loudspeaker assembly 1 according to a user instruction and controlling the sound cavity channel 18 of the loudspeaker assembly 1 to be communicated when the adjusting structure is in an opening state.

It should be noted that the control device may be a microcomputer chip, or other control form, so as to control the moving device and the adjusting member 21.

Alternatively, the moving device, namely the rack fixing seat 26 in fig. 3, may be in driving connection with a motor 29 provided in the middle frame 2, specifically, a rack 27 is provided on the moving device, the motor 29 drives the fixed gear 27 to rotate, and the gear 28 is in meshing transmission with the rack 27, so as to realize the movement of the moving device driven by the motor 29.

Alternatively, the moving device may also be rotatable, and accordingly, the rack is configured to drive the moving device to rotate.

On the basis of any one of the embodiments of the present application, the present invention further includes a travel switch for sensing that the rear sound cavity control valve 211 moves in place, the two travel switches are respectively disposed at a first travel end of the rear sound cavity control valve 211 or at a second travel end of the moving device, the two travel switches are respectively connected to a power device for driving the moving device to move, and the power device controls the moving device to stop moving after receiving a signal of the travel switches in place.

Referring to fig. 12 and 13, a guiding column for guiding the movement of the moving member is disposed inside the expansion cavity, and an upper travel switch 31 and a lower travel switch 30 are further disposed, wherein when the moving device moves to the upper position, the moving device or the adjusting member 21 will trigger the upper travel switch 31, and when the moving device moves to the lower position, the moving device or the adjusting member 21 will trigger the lower travel switch 30, so as to avoid the excessive movement displacement, and simultaneously avoid the damage of the moving device and the adjusting member 21 due to the excessive movement.

The stroke switch may be used for automatic control or manual control, and is only used as a controller for limiting the up-down stroke end.

In addition, the adjustment work for matching the audio equipment with the room has a certain specialty, and the audio equipment can be reasonably matched by a professional, so that a nonprofessional person can hardly determine which power the audio equipment needs to be matched with in the playing space, the phenomenon that the purchased audio equipment is not matched with the room is often caused, and a user does not have the adjustment capability and technology.

In order to solve the problem, on the basis of any one of the above embodiments, the present application includes a control device, and the control device includes a voice acquisition and analysis device and a controller.

The voice acquisition and analysis device is used for acquiring the user control voice and analyzing to obtain the playing scene size information in the user control voice. The controller is connected with the voice acquisition and analysis device and used for controlling the opening of the loudspeaker assemblies 1 in corresponding quantity according to the preset relationship between the playing scene size information and the loudspeaker power and the volume of the back sound cavity of the loudspeaker assemblies 1 and controlling the working of the adjusting piece 21 and the mobile device so as to communicate the back sound cavity of the loudspeaker assemblies 1 in the opening state with the capacity expansion cavity.

On the basis of any of the embodiments of the present application, the speaker units 11 except the adjustment speaker assembly 1 are all connected to the controller, and the controller can realize independent control of all the speaker units 11.

In a specific embodiment of the present application, the middle frame 2 includes the expansion cavity, and a top connection plate and a bottom connection plate disposed at two ends of the expansion cavity, and the speaker assembly is disposed outside the expansion cavity and between the top connection plate and the bottom connection plate.

Optionally, the middle frame 2 may be a squirrel-cage structure, please refer to fig. 3, the middle part of the middle frame 2 has an expansion cavity, and the peripheries of the expansion cavity are circumferentially enclosed by a plurality of side partition plates into a plurality of areas, and the areas are used for arranging the speaker assembly 1. Alternatively, the middle frame 2 may be a rectangular frame body.

The middle frame 2 is also provided with a top cover 24 and a bottom cover 22, and the bottom cover 22 is connected with the middle frame 2 through bottom cover sealing EVA 23. The lower part of the top cover 24 is provided with a controller 25, which controller 25 is the control means provided in this application and may be embodied as MIC _ PCBA.

Referring to fig. 11 and 12, a second through hole 202 is disposed on the expansion cavity of the middle frame for connecting with the back sound cavity. The outer side of the expansion cavity is provided with a groove, a return spring 213 is arranged in the groove, one side of the groove is provided with a first through hole 201, and the through hole corresponds to the sound cavity channel 18 in position and can realize the movement of the adjusting piece 21 in the radial direction.

In an embodiment of the present application, the back sound cavity control valve 211 is an L-shaped plate, one end of which is provided with a cylinder for setting the return spring 213, and the other end of which is fixedly provided with a telescopic valve body, the telescopic valve body may be specifically an electromagnetic valve 212, the electromagnetic valve 212 is clamped with the mobile device through a telescopic end, specifically, the telescopic end may be a telescopic iron post 2122, and the telescopic iron post 2122 faces the expansion cavity side.

Optionally, the solenoid valve 212 is disposed on the through hole of the L-shaped plate, and the sealing with the through connection is achieved by the solenoid valve sealing EVA 214.

Optionally, a valve seal EVA215 is disposed on the L-shaped plate and on one side of the L-shaped plate where the telescopic end is disposed, so as to seal the external connection between the L-shaped plate and the expansion cavity.

In an embodiment provided by the present application, referring to fig. 12, for an initial state (i.e. a state where each of the back sound cavity and the volume expansion cavity are closed), a return spring 213 above an electromagnetic valve 212 jacks up the back sound cavity control valve 211 downward, so that an annular valve seal EVA215 on the back sound cavity control valve 211 can wrap the first through hole 201 on the middle frame 2 to achieve sealing, and thus, the back sound cavities on the single speaker assembly 1 are all not communicated with the volume expansion cavity, i.e. a closed state at the position M in fig. 12, where the valve seal EVA215 can be soft rubber.

The rack 27 is located at the lower end of the stroke and is located at a position where the lower stroke switch 30 is pressed, at this time, the motor 29 is in a state of stopping working, so that the rack fixing seat 26 does not jack up the electromagnetic valve 212 to move upwards, and the rack 27 is controlled to move upwards by rotation only after receiving a working instruction.

At this time, several speaker units 11 in a single speaker assembly 1 can be selectively operated or stopped by means of manual control or automatic control, and can be individually controlled according to the user's requirement. If only one speaker assembly 1 or one speaker unit 11 is turned on, the sound effect of the audio device is suitable for a small room.

If the audio device needs to be adjusted to a state suitable for a large room, at this time, the telescopic iron post 2122 of the electromagnetic valve 212 can be controlled to move outwards to form a clamping connection with the rack fixing seat 26, and the rack fixing seat 26 is driven to move by the rotation of the control motor, the electromagnetic valve 212 and the back sound cavity control valve 211 can be driven to move upwards in fig. 12 by the movement of the rack fixing seat 26, so that the valve seal EVA215 on the back sound cavity control valve 211 cannot wrap the second through hole 202 of the middle frame 2, the actual volume of the back sound cavity is increased, and the state shown by the N position in fig. 13 is formed.

When the mode is an automatic control mode, taking a mode that the three rear sound cavities need to be enlarged as an example, after receiving a user instruction, the control device controls the telescopic iron posts 2122 on the three electromagnetic valves to extend outwards;

the gear 28 on the motor 29 drives the rack 27 to move upward, so as to drive the rack fixing seat 26 to move upward, so as to drive the corresponding three solenoid valves 212 to move upward, so as to communicate the rear cavities of the three audio devices.

In the process, the voice mode can be utilized for control, the voice control can refer to the existing artificial intelligence audio equipment to acquire a control instruction of a user, after the instruction is analyzed, the controller is used for controlling the adjusting piece 21 and the mobile device to work according to the preset relation between the size information of the playing scene and the volume of the back sound cavity of the loudspeaker assembly 1, specifically, the number of the back sound cavity and the opening volume of the expansion cavity and the opening number of the loudspeaker single bodies 11 can be automatically adjusted according to the preset mode, and the power of the adjusting piece can be matched with the existing volume of the back cavity and the existing size of the playing room.

When the rack holder 26 moves upward to a certain stroke, the upper stroke switch 31 is pressed, so that a command is triggered, the motor 29 stops working, and the rack holder 26 stops moving upward.

It should be noted that in fig. 13, the two electromagnetic valves 212 on the opposite sides are both extended out and the corresponding back sound cavities are communicated with the volume expansion cavity, so that the volumes of the two back sound cavities are increased, that is, the state of fig. 15 is formed. That is, FIG. 15 is a sectional view taken along line D-D in FIG. 13.

In fig. 14, a single solenoid valve 212 is extended to communicate the back tone chamber with the expansion chamber, so that the volume of the single back tone chamber is increased.

In fig. 16, the three solenoid valves 212 are all extended out and the corresponding back tone cavities are communicated with the expansion cavity, so that the volumes of the three back tone cavities are increased.

In fig. 17, all the solenoid valves 212 are extended and all the back tone cavities are communicated with the expansion cavity, so that the volume of all the back tone cavities is increased.

Referring to fig. 5, in the embodiment provided by the present application, the speaker assembly 1 includes a speaker unit 11, a housing formed by a speaker housing 12 and a speaker back shell 16, a speaker support 14 is disposed in the housing, and the speaker unit 11 is disposed on the speaker support 14.

The loudspeaker support 14 is connected with the shell in a sealing mode through support sealing EVA15, and the loudspeaker support 14 is connected with the loudspeaker single body 11 in a sealing mode through loudspeaker sealing EVA 13.

Wherein, the back sound cavity realizes the communication of the volume expansion cavity only through the sound cavity channel 18, the back sound cavity is not communicated with the outside, and the sound cavity channel 18 is also provided with a back shell sealing EVA17 so as to strengthen the sealing of the connection between the back sound cavity and the back sound cavity control valve 211.

It should be noted that the middle frame 2 is provided with a conducting cavity with a middle part and a transition cavity with a peripheral part; the connection and the sealing of the two are realized by the control valve 211 of the back sound cavity. The rack fixing seat 26 drives the solenoid valve assembly to move upwards, so that whether the conduction cavity in the middle part of the middle frame 2 is communicated with the transition cavity in the peripheral part is realized.

The above embodiments provide a mechanism that can automatically adjust the power of the audio device and its sound quality effect according to different playing space sizes and different playing scene requirements by changing the number of speakers (i.e. adjusting the total power) and changing the volume of the rear sound cavity.

In the audio equipment provided by the invention, the adjusting structure has at least two functional states and is used for realizing communication or sealing of the sound cavity channel and the expansion cavity. This application is through the state change of adjusting the structure, realizes the intercommunication or the confined control of each back sound cavity and dilatation cavity to change the actual capacity of each back sound cavity, can know according to speaker theory of operation, when changing the volume of sound cavity behind the speaker, can realize the adjustment change of the audio of speaker, thereby make audio equipment be applicable to the room of equidimension not and use. When the rated power of the loudspeaker is changed, the corresponding volume of the back sound cavity is also changed correspondingly, so that the loudspeaker can send out an ideal sound effect; this patent can realize that the rear chamber volume that it corresponds also can change when the rated power of speaker changes the back to it all is ideal audio that it sent when making its audio equipment play under its arbitrary rated power of broadcast of reservation, thereby makes audio equipment be applicable to the room of equidimension not and uses.

In addition to the main structure of the audio device provided in each of the above embodiments, the present application also provides a sound box including the audio device, where the sound box includes a sound box main body and an audio device disposed on the sound box main body, and the audio device is the audio device provided in any one of the above embodiments. For the structure of other parts of the sound box, please refer to the prior art, and the description is omitted herein.

Besides the audio equipment and the sound box provided by the embodiments, the application also provides a sound effect adjusting method of the audio equipment.

The sound effect adjusting method of the audio equipment is applied to the audio equipment provided by any one of the embodiments; specifically, the method comprises the following steps:

step S1: and acquiring the information of the size of the played scene.

Step S2: controlling to turn on or turn off the plurality of loudspeaker assemblies 1 according to the information of the size of the playing scene, so that the number of the loudspeaker assemblies 1 corresponds to the size of the playing scene; and

step S3: the sound cavity channel of the loudspeaker assembly 1 in the opening state is communicated by the control adjusting structure, and the sound cavity channel is closed by the adjusting structure of the loudspeaker assembly 1 in the closing state.

The information about the size of the playing scene obtained in step S2 of the method includes the floor area of the playing scene, the type of the playing scene, and the like. For example, the number of the square meters can be the number of the square meters, or the information for distinguishing a common apartment, a large office, outdoors and the like, the occupied area in the playing scene can be obtained by means of ultrasonic ranging, photoelectric ranging, a sound effect test evaluation algorithm and the like, and in addition, the confirmation of the playing scene can be completed by matching the preset characteristics of the playing scene, for example, in an outdoor environment, the occupied area detection range exceeds a certain value, and at this time, the outdoor scene can be determined.

In step S2, the steps of turning on and off the plurality of speaker assemblies 1 are to make the total number of speaker assemblies in the on state match with the size of the current playing scene, and the specific matching relationship may be obtained through experiments or experience. Since the number of the speaker assemblies 1 is at least two, which speaker assembly 1 is specifically turned on or off can be selected according to actual conditions. In the present embodiment, the number of speaker assemblies 1 only emphasizing the on state should correspond to the size of the target playing scene.

In step S3, the "speaker module 1 in the on state" refers to the speaker module 1 turned on in step S2, and the first sentence in step S3 refers to opening the sound cavity path corresponding to the turned-on speaker module 1.

Correspondingly, the "speaker assembly 1 in the closed state" refers to the speaker assembly 1 closed in step S2, and the second sentence in step S3 refers to closing the sound cavity channel corresponding to the speaker assembly 1 closed.

The audio device is provided with a controller or a memory, wherein information of matching of different playing scene size information and the number of the loudspeaker assemblies is prestored, and the matching value of the obtained current actual playing party scene size to the number of the loudspeaker assemblies can be obtained, and the corresponding loudspeaker is controlled to be turned on and off so as to fulfill the aim of meeting the matching value.

The sound effect adjusting method of the audio equipment is applied to the audio equipment provided by each embodiment, has the characteristics of simplicity and convenience, can enable the audio equipment to be suitable for being used in various environments, and greatly improves the use adaptability of the audio equipment.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The audio device, the sound effect adjusting method and the sound box with the audio device provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. Audio device, characterized in that it comprises a middle frame (2) and at least two independently arranged and independently controlled loudspeaker assemblies (1);

the middle frame (2) is provided with a capacity expansion cavity, and a sound cavity channel (18) for communicating the two cavities is arranged between the rear sound cavity of the loudspeaker assembly (1) and the capacity expansion cavity;

the sound cavity adjusting device is characterized by further comprising an adjusting structure for adjusting the opening and closing of the sound cavity channel, wherein when the adjusting structure is in a first state or a second state, the sound cavity channel (18) is correspondingly in a closed or communicated state, and the closed or communicated state between the rear sound cavity and the expansion cavity is correspondingly realized;

the adjustment structure includes: the adjusting pieces (21) are used for adjusting the opening and closing of the corresponding sound cavity channel, and the moving device is arranged in the expansion cavity, the adjusting pieces (21) are clamped with or separated from the moving device, and the moving device drives the adjusting pieces (21) to move synchronously in a clamping state; the adjusting piece (21) at the first position controls the closing of the sound cavity channel (18), and the adjusting piece at the second position controls the communication of the sound cavity channel (18).

2. The audio device according to claim 1, characterized in that the adjustment member (21) comprises:

the rear sound cavity control valve (211) is movably arranged at the connecting position of the external connecting port of the expansion cavity and the sound cavity channel (18) so as to realize sealing or communication, and a valve sealing device used for strengthening the sealing of the sound cavity channel (18) and the expansion cavity is arranged on the rear sound cavity control valve (211);

the telescopic valve body is fixedly connected with the rear sound cavity control valve (211), is provided with a telescopic end and is clamped with the mobile device in an extending state.

3. The audio device as claimed in claim 2, wherein the moving means is configured to move the retractable valve body in a first direction; the middle frame (2) is provided with an elastic piece which enables the telescopic valve body to move along the direction opposite to the first direction, so that when the moving device is reset, the telescopic valve body is reset along the direction opposite to the first direction.

4. The audio equipment as claimed in claim 3, wherein a groove is formed outside the expansion cavity, and the groove is fixedly connected with the loudspeaker assembly (1); the elastic piece is arranged in the groove and connected with the back sound cavity control valve (211).

5. The audio equipment according to claim 2, further comprising a travel switch for sensing that the rear sound cavity control valve (211) is moved to a proper position, wherein two travel switches are respectively disposed at a first travel end of the rear sound cavity control valve (211) or at a second travel end of the moving device, the two travel switches are respectively connected to a power device for driving the moving device to move, and the power device controls the moving device to stop moving after receiving a proper position signal of the travel switches.

6. The audio device as in claim 2, wherein the moving means comprises a cylinder support having a circumferential support table for supporting movement of at least two of the telescopic valve bodies in a circumferential direction; the cylinder support is arranged in the expansion cavity and linearly moves through a connecting transmission device.

7. The audio device according to claim 2, wherein two ends of the telescopic valve body are respectively disposed in the sound cavity channel (18) and the external connection port of the expansion cavity, and slide along the radial direction of the sound cavity channel (18) and the radial direction of the external connection port, and the sliding direction is the same as the moving direction of the moving device.

8. Audio equipment according to one of claims 1 to 7, characterized in that the adjustment structure and the loudspeaker assembly (1) are in control connection with a control device for switching on the corresponding loudspeaker assembly (1) according to a user instruction and controlling the adjustment structure to communicate the sound cavity channel (18) of the loudspeaker assembly (1) in the switched-on state.

9. The audio device of any of claims 1 to 7, further comprising a control means, the control means comprising:

and the controller is connected with the voice acquisition and analysis device and used for controlling the opening of the corresponding number of the loudspeaker assemblies (1) according to the preset relationship between the playing scene size information and the loudspeaker power and the volume of the back sound cavity of the loudspeaker assembly (1), and controlling the working of the adjusting piece (21) and the mobile device so as to communicate the back sound cavity of the loudspeaker assembly (1) with the expansion cavity in the opening state.

10. The audio device according to claim 9, wherein the speaker units (11) of the speaker assembly (1) are each connected to the controller, and the controller enables independent control of all the speaker units (11).

11. A sound effect adjustment method of an audio apparatus including the audio apparatus of any one of claims 1 to 10; the method comprises the following steps:

acquiring information of the size of a playing scene;

controlling to turn on or off a plurality of loudspeaker assemblies (1) according to the information of the size of the playing scene, so that the number of the loudspeaker assemblies (1) corresponds to the size of the playing scene; and

the control adjusting structure is used for communicating the sound cavity channel of the loudspeaker assembly (1) in an open state, and the control adjusting structure is used for closing the sound cavity channel of the loudspeaker assembly (1) in a closed state, so that the rear sound cavity and the expansion cavity are sealed or communicated correspondingly.