CN110519668B

CN110519668B - Modular flat sound box

Info

Publication number: CN110519668B
Application number: CN201810487614.5A
Authority: CN
Inventors: 郑岳世; 林忠洋
Original assignee: Huayi Acoustics Co ltd
Current assignee: Huayi Acoustics Co ltd
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2020-12-22
Anticipated expiration: 2038-05-21
Also published as: CN110519668A

Abstract

The invention discloses a modular flat sound, which comprises: the system comprises a plurality of sound modules, a plurality of display modules and a plurality of display modules, wherein the sound modules can be selectively arranged in a plurality of installation blocks of a plane installation area respectively; the control host is connected with the plurality of sound modules in a wireless connection mode, can output sound signals corresponding to the plurality of sound modules, respectively transmits the sound signals corresponding to the sound modules, and outputs the sound signals through the sound modules.

Description

Modular flat sound box

Technical Field

The invention relates to a modular flat sound device, in particular to a modular flat sound device which adopts a wireless connection mode and is arranged in a flat installation area such as an indoor wall surface, a ceiling or a floor.

Background

Most of the existing sound systems are composed of a sound source device, an amplifier and a plurality of different speakers, wherein the amplifier and the speakers are respectively designed into box structures, so that the existing sound systems can only be arranged in indoor space and cannot be integrated into plane installation areas such as indoor wall surfaces, ceilings or floors.

The existing part of the sound system adopts a plane loudspeaker, however, the existing plane loudspeaker has the problems of too small audio frequency range and poor sound production efficiency due to the limitation of sound production components or monomers.

In order to create stereo effect or surround effect, a plurality of different speakers must output sound signals of different sound channels, so as to create a sound field with a stereo presence. However, in the conventional sound system, since the speakers and the main unit are connected by wires, the flat sound system installed on the wall surface must be provided with signal transmission lines for connecting the main unit and the different speakers, which causes the line structure on the wall surface to be disordered and complicates the wiring operation.

Because of the above reasons, the conventional flat-panel sound system is inconvenient to use, and how to solve the above problems through structural improvement has become one of the important problems to be solved by the industry.

Disclosure of Invention

The embodiment of the invention provides a modular flat sound device, which comprises: a planar mounting area having a plurality of mounting blocks; a plurality of sound modules, each of the plurality of sound modules being selectively positionable in a plurality of mounting blocks; the control host is connected with the plurality of sound modules in a wireless connection mode, can output a plurality of sound signals corresponding to the plurality of sound modules, respectively transmits the sound signals to the plurality of sound modules, and outputs the sound signals through the sound modules; each sound module is provided with a plane frame body, the shape and the size of each plane frame body are matched with those of the installation blocks of the plane installation area, so that the plane frame bodies can be installed on the installation blocks respectively, and the front side surface of each plane frame body is provided with a sound production unit respectively; each of the sound modules is provided with a first connecting device, the plane frame body of each sound module is provided with a second connecting device, each second connecting device is arranged on the rear side face of the plane frame body, and the position of each second connecting device arranged on the plane frame body corresponds to the position of the first connecting device on each mounting block, so that when each sound module is arranged on any one mounting block, the second connecting devices can be in contact with the first connecting devices to form electrical connection; when each second connecting device is connected with the first connecting device, the power contact of the second connecting device is electrically connected with the power contact of the first connecting device so as to provide the power required by the sound module.

In a preferred embodiment of the present invention, the control host has a first communication unit, the plurality of audio modules have a second communication unit, and the plurality of audio modules are connected to the first communication unit of the control host in a wireless connection manner through the second communication unit.

In a preferred embodiment of the present invention, each of the first connecting means and the second connecting means further has a plurality of signal contacts, respectively, and when each of the audio modules is mounted on the mounting block, the second connecting means of each of the audio modules and the plurality of signal contacts of the corresponding first connecting means on the mounting block can contact each other, so that the mounting block can transmit an operation information to the audio module through the plurality of signal contacts of the first connecting means and the second connecting means.

In a preferred embodiment of the present invention, the operation information includes position information of the installation block corresponding to each of the audio modules, and the audio modules read the position information of the installation block corresponding to each of the audio modules through a plurality of signal contacts and send the position information of the installation block corresponding to each of the audio modules to the control host, so that the control host adjusts a sound signal output to each of the audio modules according to the position information of the installation block corresponding to each of the audio modules.

In a preferred embodiment of the present invention, the sound generating unit has one or a combination of a film sound generating component, an electrostatic sound generating component, and a moving coil sound generating unit.

In a preferred embodiment of the present invention, the film sound emitting module includes: the film substrate is provided with an upper side face and a lower side face which are opposite, and the upper side face and the lower side face of the film substrate can respectively define at least one working area; the two conducting layers are respectively arranged on the upper side and the lower side of the film substrate and at least cover the upper side and the lower side of the film substrate in at least one working area; the two conductive strips are respectively arranged on two opposite side surfaces of the film substrate; the two conductive strips are opposite to each other and are respectively arranged on the side edge of the film substrate along the edge of at least one working area; the two conductive assemblies are respectively arranged on one side face, opposite to the film substrate, of the two conductive strips, are in a shape corresponding to the two conductive strips, and cover and contact one side face, opposite to the film substrate, of the two conductive strips; the two conductive components are respectively electrically connected with an audio source signal.

In a preferred embodiment of the present invention, the film sound generating component is disposed on the front side of the planar frame in a flat manner.

In a preferred embodiment of the present invention, the film substrate is a polyvinylidene fluoride (PVDF) film, and the two conductive layers are metal films or metal oxide films.

In a preferred embodiment of the present invention, the two conductive strips are conductive adhesives or metal conductor layers disposed on the surfaces of the two conductive layers in an electroplating manner.

In a preferred embodiment of the present invention, the film substrate further includes a frame structure, the frame structure is disposed at a position of the film substrate at the edge of the working area, and the frame structure includes: the upper frame body and the lower frame body are oppositely arranged on the upper side and the lower side of the edge position of the working area of the film base material and oppositely clamped on the upper side and the lower side of the film base material so as to fix the film base material; the lower frame body has a top surface facing one side of the film base material, a clamping groove is formed in the center of the top surface, the upper frame body has a bottom surface facing one side of the film base material, the bottom surface has a clamping flange corresponding to the clamping groove, when the upper frame body and the lower frame body are clamped relatively, the clamping flange can be clamped in the clamping groove, the film base material corresponds to the clamping flange and the material extrusion card at the position of the clamping groove is clamped in the clamping groove, and the material of the film base material corresponding to the clamping flange and the position of the clamping groove is made to form a concave-convex shape corresponding to the clamping flange and the clamping groove.

In a preferred embodiment of the present invention, each of the installation blocks is provided with a first connecting device, each of the sound modules is provided with a second connecting device, and the second connecting devices are disposed at positions corresponding to the first connecting devices on the rear side of the planar frame, so that the second connecting devices can contact with the first connecting devices when the sound modules are disposed on the installation blocks; wherein the first connecting means and a power source are connected, the first connecting means and the second connecting means having at least one set of power contacts for enabling power provided by the power source to be conducted to the audio module via the power contacts.

In a preferred embodiment of the present invention, a display device is further disposed on the front side of the planar frame for displaying the operation status of the audio module.

For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description, and are not intended to be limiting.

Drawings

Fig. 1 is a schematic plan view of a modular flat panel sound system according to the present invention.

Fig. 2 is a block diagram of a modular flat panel sound system according to the present invention.

Fig. 3 is a partial exploded perspective view of an embodiment of the modular flat panel sound of the present invention.

Fig. 3A and 3B are partially enlarged perspective views taken from portions III a and III B of fig. 3, respectively.

Fig. 4 is a perspective view of an audio module used in the modular flat panel audio of the present invention taken from a rear perspective.

Fig. 5 is a block diagram of the circuit system of the control host used in the modular flat panel sound of the present invention.

Fig. 6 is a block diagram of the circuitry of the audio module used in the modular flat panel audio of the present invention.

Fig. 7 is a side sectional view of an audio module for use with the modular flat panel audio of the present invention.

Fig. 8 is a schematic sectional view showing a film sound generating unit used in the modular flat sound of the present invention.

Fig. 9 is a schematic perspective exploded view of a film sound-generating unit used in the modular flat panel sound of the present invention.

Fig. 10 is a schematic cross-sectional view of a film sound generating unit for use in the modular flat panel audio of the present invention.

Fig. 11 is a schematic view showing the pin configuration of the contact terminals of the first connecting device and the second connecting device used in the modular flat panel sound of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the present invention provides a wireless connection modular flat sound device 1, which includes a flat installation area 10, a plurality of sound modules 30, and a control host 20. The plurality of sound modules 30 are respectively installed on the planar installation area 10, the plurality of sound modules 30 are respectively connected with the control host 20 in a wireless connection manner, the control host 20 outputs a plurality of sound signals corresponding to each sound module 30 to the plurality of sound modules 30 in a wireless transmission manner, and each sound module 30 outputs the corresponding sound signal.

As shown in fig. 3, the planar mounting area 10 is a flat structure, the planar mounting area 10 provides a large-area planar portion, and the planar portion of the planar mounting area 10 is divided into a plurality of mounting blocks 11. In this embodiment, the planar installation area 10 may be a wall, a ceiling, or even a floor of an indoor compartment, and the plurality of installation blocks 11 on the planar installation area 10 are respectively rectangular, and the areas of the installation blocks 11 are equal to each other. And each of the sound modules 30 is fitted to the mounting block 11 in shape and size so as to be mounted on a plurality of the mounting blocks 11.

In this embodiment, a surface of each of the mounting blocks 11 facing the audio module 30 is provided with a plurality of hanging members 13 (as shown in fig. 3A) for positioning the audio module 30 on each of the mounting blocks 11, and a first connecting device 12 (as shown in fig. 3B) is further provided on a surface of each of the mounting blocks 11 for connecting each of the mounting blocks 11 with the audio module 30 for power or signal connection.

As shown in fig. 2, 5 and 6, the plurality of sound modules 30 are connected to the control host 20 by wireless connection, and the control host 20 can be connected to an audio source device 40 (as shown in fig. 5), and output audio signals of a plurality of different channels, and transmit the audio signals of the plurality of different channels to the plurality of sound modules 30, respectively. As shown in fig. 5, the circuit structure of the control host 20 used in the present invention includes an audio processing unit 21, an analog-to-digital converter 22, a control and processing module 23, and a first communication unit 24, wherein the audio processing unit 21 is connected to the sound source device 40, and is used for decoding the sound signals generated by the sound source device 40, converting the sound signals into sound signals corresponding to different sound channels of the plurality of sound modules 30, then converting the sound signals of the plurality of different sound channels into digital sound signals through the analog-to-digital converter 22, and outputting the digital sound signals through the control and processing module 23 and the first communication unit 24. The first communication unit 24 has a first communication antenna 241, and the first communication unit 24 is connected to the plurality of sound modules 30 through the first communication antenna 241 for transmitting the sound signals of the different sound channels to the different sound modules 30. As shown in fig. 2, the control host 20 can also be connected to a client electronic device 70 (e.g., a mobile phone, a remote controller, a tablet computer, etc.) or a multimedia host 80, and a user can operate the control host 20 through the client electronic device 70 or the multimedia host 80.

As shown in fig. 6, the circuit structure of each of the different audio modules 30 of the present invention includes a second communication unit 301, a control unit 302, a digital-to-analog converter 303, an amplifying circuit 304, and a sound generating unit 32. The second communication unit 301 has a second communication antenna 305, and the second communication unit 301 is wirelessly connected to the first communication unit 24 of the control host 20 through the second communication antenna 305, so that the audio module 30 can communicate with the control host 20. The second communication unit 301 is connected to the control unit 302 of the audio module 30, so that the control command of the control host 20 to each audio module 30 and the output audio signal can be transmitted to the control unit 302 of the audio module 30. The audio signal transmitted to the audio module 30 is a digital audio signal, and is converted into an analog audio signal by the digital-to-analog converter 303, and then amplified by the amplifying circuit 304 to drive the sound generating unit 32 to output the audio signal for the user to listen.

The control unit 302 of the audio module 30 is further connected to a display unit 36 for displaying the operation status of the audio module 30, and a second connecting means 37, the second connecting means 37 is used to cooperate with the first connecting means 12 on the mounting block 11 for enabling the transmission of power and operation information between the audio module 30 and the mounting block 11.

As shown in fig. 3, 4 and 7, each of the sound modules 30 has a planar frame 31, in this embodiment, the planar frame 31 is a rectangular plate, and the shape and size of the planar frame 31 and each of the installation blocks 11 are matched with each other so that each of the sound modules 30 can be accommodated in each of the installation blocks 11. The planar frame 31 has a front side 311 and a back side 312 opposite to each other, wherein the sound-emitting planar frame 31 can be attached to the plurality of mounting blocks 11 of the planar mounting area 10 at the back side 312. As shown in fig. 3, 3A, 3B and 4, in this embodiment, a plurality of hanging holes 313 are provided on the rear surface of the planar frame 31 at positions corresponding to the plurality of hanging members 13, and the plurality of hanging members 13 are engaged with the hanging members 13 on the mounting block 11, whereby the planar frame 31 of the plurality of acoustic modules 30 can be fixed to the plurality of mounting blocks 11. The second connecting device 37 is disposed at a position on the rear side 312 of the planar frame 31 corresponding to the first connecting device 12 on the planar block 11, and when the planar frame 31 is mounted on each mounting block 11, the second connecting device 37 can contact with the first connecting device 12 to achieve electrical connection.

The front side of the planar frame 31 is further provided with a sound unit 32 for outputting the sound signal. The display unit 36 is disposed on the front side 311 of the planar frame 31 (as shown in fig. 3), and the display unit 36 has at least one display component 361 for displaying the operation state of the audio module 30. In this embodiment, the display component 361 of the display unit 36 is a plurality of LEDs, however, in a further embodiment of the present invention, the display component 361 may also be a liquid crystal display, or a component such as an OLED display device.

The first connecting device 12 and the second connecting device 37 of the present invention are mainly used to provide the power required by the audio module 30 during operation, and in a further embodiment of the present invention, the first connecting device 12 and the second connecting device 37 can also be used as an interface for transmitting an operation message between the audio module 30 and the mounting block 11. As shown in fig. 11, in this embodiment, the first connecting device 12 and the second connecting device 37 respectively have a plurality of

contact terminals

121, 371, and the positions of the plurality of contact terminals 121 on the first connecting device 12 and the positions of the plurality of contact terminals 371 on the second connecting device 37 correspond to each other, so that when the first connecting device 12 and the second connecting device 37 contact each other, the plurality of

contact terminals

121, 371 can contact each other to achieve electrical connection. In this embodiment, the plurality of contact terminals 121 of the first connecting device 12 has at least two power contacts 122, and the plurality of contact terminals 371 of the second connecting device 37 also has two power contacts 372, wherein the power contacts 122 of the first connecting device 12 are connected to a power supply device (e.g., a power receptacle or a battery), and when the power contacts 372 of the second connecting device 37 are in contact with the power contacts 122 of the first connecting device 12, the power of the power supply device can be transmitted to the audio module 30, so that the first and second connecting

devices

12 and 37 are engaged with each other to provide the power required for the operation of the audio module 30 without additional wiring, thereby simplifying the structure of the audio module 30 and facilitating the installation procedure.

Furthermore, the plurality of

contact terminals

121, 371 of the first connecting device 12 and the second connecting device 37 further include a plurality of

signal contacts

123, 373, and when the first connecting device 12 and the second connecting device 37 contact each other, the plurality of

signal contacts

123, 373 can contact each other, so that the mounting block 11 and the sound module 30 can transmit the operation information through the first connecting device 12 and the second connecting device 37.

As shown in fig. 6, each of the installation blocks 11 can be provided with a recording unit 14, the recording unit 14 stores operation information of each of the installation blocks 11, and the recording device 14 is connected with the first connecting device 11, when the sound module 30 is mounted on the mounting block 11 such that the first connecting device 12 is connected with the second connecting device 37, the operation information stored in the recording device 14 can be transmitted to the audio module 30 via the first connecting means 12 and the second connecting means 37, the sound module 30 transmits the operation information of the installation block 11 corresponding to each sound module 30 to the control host 20 by wireless transmission, so that the control host 20 can adjust the sound signal output to each of the sound modules 30 according to the operation information of the installation block 11 corresponding to each of the sound modules 30.

The operation information transmitted through the first connecting means 12 and the second connecting means 37 may be, but is not limited to, various types of operation information as described below. For example: the operation information may be position information of the installation block 11. The position information of the installation block 11 refers to a coordinate position of the installation block 11 on the planar installation area 10, when each of the audio modules 30 is installed on the installation block 11, the audio module 30 can read the position information of the corresponding installation block through the plurality of

signal contacts

123, 373, and then each of the audio modules 30 sends the position information of the corresponding installation block 11 to the control host 20 through a wireless transmission manner. Therefore, the control host 20 can obtain the operation parameters of the installation position of each of the sound modules 30 in the above manner, and the control host 20 can adjust the sound signal output to each of the sound modules 30 according to the position information of the installation block 11 corresponding to each of the sound modules 30.

In the present invention, as described above, when the audio module 30 is mounted on the mounting surface 10, the position information of the mounting block 11 corresponding to the audio module 30 can be automatically acquired through the first connecting device 12 and the second connecting device 37, and the position information can be transmitted to the control host 20, the control host 20 can automatically obtain the operation parameters of the installation position of each of the sound modules 30, and adjusts the sound signal outputted to each of the sound modules 30 according to the operation parameter of the installation position of each of the sound modules 30, therefore, the sound signals of different sound channels output by the control host 20 to each of the sound modules 30 can be adjusted according to the corresponding spatial position of the sound module 30, so that the sound signals outputted from the plurality of sound modules 30 can be modeled to have the effect of stereo sound effect or surround sound effect.

As shown in fig. 3 and 7, the sound unit 32 of each audio module 30 of the present invention is disposed on the front side of the planar frame 31. The sound unit 32 can be composed of one or more sound components. In this embodiment, the sound unit 32 of the sound module 30 includes a film sound generating component 33, an electrostatic sound generating component 34, and a moving-coil sound generating unit 35. Of course, the sound generating component used in the sound generating unit 32 is not limited to the type disclosed in the embodiment, and any sound generating unit or sound generating component having a structure and a space shape suitable for being mounted on the planar frame 31 can be used in the present invention.

In addition, the sound unit 32 used in the plurality of sound modules 30 of the present invention may be one or a combination of the above-described film sound generating unit 33, an electrostatic sound generating unit 34, or a moving coil sound generating unit 35. For example, in the embodiment shown in fig. 1, the plurality of sound modules 30 disposed on the planar installation area 10 respectively have three different sound units 32, for example, the sound unit 32a shown in fig. 1 is a circular thin film sound component, the sound component 32b shown in fig. 1 is an electrostatic sound component, and the sound component 32b is a plurality of moving coil sound units.

The sound unit 32 is composed of sound components with different shapes or different structures, so that different sound modules 30 have different audio characteristics and are used for corresponding sound signals with different frequency ranges.

As shown in fig. 8 and 9, the structure of the film sound generating unit 33 used in the present invention mainly includes: a film substrate 331, wherein the film substrate 331 is a film or a sheet made of a polymer material with piezoelectric properties, and the upper side and the lower side of the film substrate 331 are respectively provided with an upper side surface and a lower side surface which are opposite; and two conductive layers 332, wherein the two conductive layers 332 are made of a conductive material and are respectively disposed on the upper side and the lower side of the film substrate 331.

The thickness of the film base 331 of the film sound generating component 33 of the present invention is preferably less than 0.3 mm. The area of the portion of the film substrate 331 for emitting sound is defined as a working area 331a, and the two conductive layers 332 at least cover the upper side and the lower side of the film substrate 331 within the working area 331 a. The film substrate 331 is preferably a film or sheet made of polyvinylidene fluoride (PVDF) or other polymeric materials capable of generating piezoelectric effect.

The two conductive layers 332 at least cover the upper surface and the lower surface of the film substrate 331 within the working area 331 a. The two conductive layers 332 of the present invention can be made of metal materials, such as: a Metal material such as copper (Cu), silver (Ag), chromium (Cr), nickel (Ni), and titanium (Ti), or a Metal Oxide (Metal Oxide) thin film having conductivity, for example: titanium nitride (TiN), Indium TiN Oxide (ITO) thin films, and the like. The conductive layers 332 can be disposed on the surface of the film substrate 331 by evaporation, sputtering, electroplating, or coating.

The film base material 331 is further provided with two conductive strips 333 on the upper side and the lower side of the edge of the working area 331a, the two conductive strips 333 are opposite to each other and are respectively arranged on the side of the film base material 331 along the edge of the working area 331a, and are respectively connected with the edges of the two conductive layers 332 at the periphery of the working area 331 a. The two conductive strips 333 of the present invention can be selected as conductive adhesive, or can be made of metal conductor disposed on the surface of the conductive layer 332 by plating or coating.

Two conductive elements 334 are further disposed on the outer side surfaces of the two conductive strips 333, the bodies of the two conductive elements 334 have shapes corresponding to the two conductive strips 333, and the width of the two conductive elements 334 is greater than or equal to the width of the two conductive strips 333, so as to cover and contact one side surface of the two conductive strips 333 opposite to the film substrate 331. The two conductive elements 334 can be flexible printed circuit boards or conductive bodies made of high molecular polymers with conductors plated on the surfaces, such as: polyethylene terephthalate (PET) with a metal layer plated on the surface. As shown in fig. 3, one side of each of the two conductive elements 334 has an extension 334a, and the extension 334a is provided with a conductive contact 334b for connecting with two output electrodes of an audio signal, so that the audio signal can be conducted to the two conductive strips 333 through the two conductive elements 334 and further conducted to the two conductive layers 332 through the two conductive strips.

In the film sound generating assembly 33 of the present invention, the film base 331 is made of a polymer material capable of generating a piezoelectric effect, and the two conductive layers 332 cover the two side surfaces of the film base 331 respectively, so that when the voltage of the sound source signal is transmitted to the two conductive layers 332, the two conductive layers 332 can generate an electric field, and further the film base 331 generates an inverse piezoelectric effect, so that the working area 331a of the film base 331 generates vibration to convert the sound source signal into sound for outputting.

It is specifically noted that the working area 331a of the film sound generating unit 30, the conductive strips 333 and the conductive elements 334 surrounding the edge of the working area 331a are not limited to the rectangular structure shown in fig. 9, and may be designed in other shapes according to actual requirements.

Referring to fig. 10, a sound-generating film assembly 33 according to a variation of the present invention further includes a frame structure 38 for supporting the film substrate 331 so that the film substrate 331 at least within the working area 331a is in a planar state. In this embodiment, the frame structure 38 is disposed at an edge of the working area 331a of the film substrate 331, and the frame structure 38 includes: and the upper frame body 381 and the lower frame body 382 are oppositely arranged on the upper side surface and the lower side surface of the edge position of the working area 331a of the film base material 331 and oppositely clamped on the two side surfaces of the film base material 331. The upper frame 381 and the lower frame 382 are further clamped on the outer sides of the conductive strip 333 and the two conductive elements 334, respectively, so as to press the conductive strip 333 and the two conductive elements 334 against the outer sides of the two conductive layers 332, thereby improving the stability of signal transmission.

In the embodiment, one side of the lower frame body of the frame body structure 38 facing the film substrate has a top surface, the center of the top surface has an annular clamping groove 382a, and one side of the upper frame body 381 facing the film substrate 331 has a bottom surface, the bottom surface has a clamping flange 381a corresponding to the clamping groove 382a of the lower frame body 382, when the upper frame body 381 and the lower frame body 382 are clamped relatively, the clamping flange 381a can be clamped in the clamping groove 382a, and the material at the position of the film substrate 331 corresponding to the clamping flange 381a and the clamping groove 382a is pressed and clamped in the clamping groove 382 a.

As shown in fig. 10, since the clamping groove 382a and the clamping flange 381a are perpendicular to the surface of the film substrate 331, when the material at the edge of the film substrate 331 is driven by the clamping flange 381a to be clamped into the clamping groove 382a, the material at the position of the film substrate 331 corresponding to the clamping flange 381a and the clamping groove 382a is formed into a concave-convex shape corresponding to the clamping flange 381a and the clamping groove 382a, and the material at the edge of the working area 331a of the film substrate 331 is driven to be subjected to a vertical tensile force, so that the material of the film substrate 331 within the working area 331a generates a horizontal strain, and the material of the film substrate 331 generates a tensile stress.

The film sounding component 33 of the present invention has the advantages of the above structure, and mainly, most areas of the film base material 331 are the vibratile sounding areas, so that the sound output efficiency can be effectively improved, the range of the audio frequency that can be output by the film sounding component 33 is increased, and the sound output by the film sounding component 33 has better details and reduction degree.

In addition, the film sound generating component 33 of the present invention is flatly disposed on the front side 311 of the planar frame 31, and in the embodiment shown in fig. 10, the film base 331 can further support and fix the film base 331 through the frame structure 38, so that the film base 331 of the film sound generating component 33 can be stably supported, the film sound generating component 33 can be prevented from being loosened, the sound quality of the sound output by the film sound generating component 33 can be improved, and the generation of abnormal sound can be avoided.

As shown in fig. 1, the modular flat sound 1 of the present invention can be configured by providing different accessory modules 50 on each installation block 11, in addition to the sound modules 30 on the flat installation area 10. The accessory module 50 has a similar shape and size to the planar frame 31 of the audio module 30 and is disposed in the same manner in each of the mounting blocks 11. The accessory module 50 has a number of options, for example: the accessory module 50 may be a decorative picture frame, a clock, a mirror, or other types of structures or decorations; further, the accessory module 50 may be a planar electronic product, or an appliance manufactured to be accommodated in a planar frame structure, such as: a flat light source device, an air cleaner, a dehumidifier, etc.; even the accessory module 50 can be a tablet touch computer, a media player, a wireless base station, or even a micro server, as well as various types of internet of things sensing devices. In addition, the mounting block 11 on the flat mounting area 10 can also be mounted with a large-sized flat display 60, so that the present invention has a multimedia playing function.

Therefore, the modular flat sound 1 of the present invention can be used as a sound device for playing music, and can be combined with different accessory modules 50 through the sound module 30 to form a part of interior decoration and smart home environment.

[ possible effects of the embodiment ]

In summary, the present invention has the advantages that each of the audio modules 30 is connected to the control host 20 by wireless connection, so that the planar installation area 10 does not need to be provided with a signal transmission line for connecting the audio module 30 and the control host 20, and the control host can adjust the sound signal corresponding to each of the audio modules 30 according to the installation position and the audio characteristic of each of the audio modules 30, thereby easily adjusting the sound effect of the output sound field and enhancing the flexibility of the use.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that equivalent technical changes made by using the contents of the present specification and the drawings are included in the scope of the present invention.

Claims

1. A modular flat sound, comprising:

a planar mounting area having a plurality of mounting blocks;

a plurality of sound modules selectively positionable in a plurality of mounting blocks;

the control host is connected with the plurality of sound modules in a wireless connection mode, can output a plurality of sound signals corresponding to the plurality of sound modules, correspondingly transmits the plurality of sound signals to the plurality of sound modules, and outputs the sound signals through the sound modules;

each sound module is provided with a plane frame body, the shape and the size of the plane frame body are matched with those of the installation blocks of the plane installation area, so that the plane frame bodies can be correspondingly installed on the installation blocks, and a sound-emitting unit is arranged on the front side surface of each plane frame body;

the first connecting device is arranged on each installation block, the second connecting device is arranged on the plane frame body of each sound module, the second connecting device is arranged on the rear side face of the plane frame body, and the position of the second connecting device arranged on the plane frame body corresponds to the position of the first connecting device on the installation block, so that when the sound module is arranged on any installation block, the second connecting device can be in contact with the first connecting device to form electrical connection;

the first connecting device and the second connecting device are respectively provided with at least one group of power contacts, the power contacts of the first connecting device are connected with a power supply device, and when the second connecting device is connected with the first connecting device, the power contacts of the second connecting device and the power contacts of the first connecting device form electrical connection to provide power required by the sound module;

the control host is provided with a first communication unit, the plurality of sound modules are respectively provided with a second communication unit, and the sound modules are connected with the first communication unit of the control host in a wireless connection mode through the second communication units;

the first connecting device and the second connecting device are respectively provided with a plurality of signal contacts, when the sound module is installed on the installation block, the second connecting device of the sound module and the plurality of signal contacts of the corresponding first connecting device on the installation block can be contacted with each other, so that the installation block can transmit operation information to the sound module through the plurality of signal contacts of the first connecting device and the second connecting device;

the operation information comprises position information of the installation block corresponding to each sound module, the sound modules read the position information of the corresponding installation block through a plurality of signal contacts and send the position information of the corresponding installation block to the control host, and the control host adjusts and outputs sound signals to each sound module according to the position information of the installation block corresponding to each sound module.

2. The modular flat sound of claim 1, wherein the sound unit has one or a combination of a membrane sound generating assembly, an electrostatic sound generating assembly and a moving coil sound generating unit.

3. The modular flat sound of claim 2, wherein the membrane sound emitting assembly comprises:

the film substrate is provided with an upper side face and a lower side face which are opposite, and the upper side face and the lower side face of the film substrate can respectively define at least one working area;

the two conducting layers are respectively arranged on the upper side and the lower side of the film substrate and at least cover the upper side and the lower side of the film substrate in at least one working area;

the two conductive strips are respectively arranged on two opposite side surfaces of the film substrate; the two conductive strips are opposite to each other and are respectively arranged on the side edge of the film substrate along the edge of at least one working area; and

the two conductive assemblies are respectively arranged on one side surfaces of the two conductive strips, which are far away from the film substrate, are in a shape corresponding to the two conductive strips, and cover and contact one side surfaces of the two conductive strips, which are far away from the film substrate; the two conductive components are respectively electrically connected with an audio source signal.

4. The modular flat sound of claim 3, wherein the membrane sound emitting assembly is disposed flush against the front side of the flat enclosure.

5. The modular flat panel sound of claim 4, wherein the film substrate is a polyvinylidene fluoride film and the two conductive layers are metal films or metal oxide films.

6. The modular flat panel speaker as claimed in claim 5, wherein the two conductive strips are conductive adhesive or metal conductive layers plated on the surfaces of the two conductive layers.

7. The modular flat panel sound of claim 6, further comprising a frame structure disposed at an edge of the working area of the film substrate, the frame structure comprising: the upper frame body and the lower frame body are oppositely arranged on the upper side surface and the lower side surface of the edge position of the working area of the film base material and oppositely clamped on the upper side surface and the lower side surface of the film base material so as to fix the film base material; the lower frame body has a top surface facing one side of the film base material, a clamping groove is formed in the center of the top surface, the upper frame body has a bottom surface facing one side of the film base material, the bottom surface has a clamping flange corresponding to the clamping groove, when the upper frame body and the lower frame body are clamped relatively, the clamping flange can be clamped in the clamping groove, the film base material corresponds to the clamping flange and the material extrusion card at the position of the clamping groove is clamped in the clamping groove, and the material of the film base material corresponding to the clamping flange and the position of the clamping groove is made to form a concave-convex shape corresponding to the clamping flange and the clamping groove.

8. The modular flat speaker of claim 1, wherein a display device is further provided on the front side of the flat housing for displaying the operating status of the speaker module.