CN110519673B

CN110519673B - Plane module sound box

Info

Publication number: CN110519673B
Application number: CN201810487998.0A
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: 2020-12-18
Anticipated expiration: 2038-05-21
Also published as: CN110519673A

Abstract

The invention discloses a plane module sound, which comprises: the plane installation area is divided into a plurality of installation blocks, and each installation block is respectively provided with a first connecting device; the plurality of sound modules can be selectively arranged in the plurality of installation blocks respectively, and are provided with second connecting devices respectively for being connected with the first connecting devices; the control host is connected with the first connecting devices in the plurality of installation blocks through connecting wires; when the plurality of sound modules are arranged on the plurality of installation blocks, the first connecting device on each installation block is electrically connected with the second connecting device on each sound module, so that the plurality of sound modules are connected with the control host.

Description

Plane module sound box

Technical Field

The present invention relates to a flat modular sound system, and more particularly, to a flat modular sound system that can be assembled to a flat structure such as an indoor wall, ceiling, or even 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 a 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, the control main unit and each speaker must be connected by a wire, and thus, when the sound system is assembled, the signal transmission lines between each speaker and the control main unit must be connected one by one, and thus, it is difficult to perform the piling process.

For the above reasons, various inconveniences are caused in the conventional flat sound system, and it is an important subject to be solved by the above-mentioned business to solve the above problems by improving the structure.

Disclosure of Invention

The embodiment of the invention provides a plane module sound device, which comprises: the plane installation area is divided into a plurality of installation blocks, and each installation block is respectively provided with a first connecting device; a plurality of sound modules, wherein the sound modules can be selectively arranged in a plurality of installation blocks of the plane installation area respectively, a second connecting device is arranged at the position of the sound modules corresponding to the first connecting device of each installation block respectively, and when the sound modules are arranged in the installation blocks, the second connecting devices can be connected with the first connecting devices on the installation blocks; the control host is connected with the plurality of first connecting devices in the plurality of installation blocks through connecting wires, when the plurality of sound modules are installed on the plurality of installation blocks, the first connecting devices on each installation block are electrically connected with the second connecting devices on the sound modules, so that the plurality of sound modules are connected with the control host, the control host can output a plurality of sound signals corresponding to the plurality of sound modules, respectively transmit the plurality of sound signals to the plurality of sound modules, and output the sound signals through the sound modules.

In a preferred embodiment of the present invention, the first connecting device and the second connecting device have at least one set of audio contacts, so that the sound signal output by the control host can be conducted to the sound module through the audio contacts; the first connecting device and the second connecting device are respectively provided with a plurality of signal contacts for transmitting an operating parameter of the sound module to the control host, and the control host adjusts and outputs a sound signal to each sound module according to the operating parameter of each sound module.

In a preferred embodiment of the present invention, a part of the signal contacts on the second connecting device is an open-circuit state contact, and the other part of the signal contacts is a closed-circuit state contact, the second connecting device obtains a plurality of different signal contact combination forms by arranging the signal contacts as the closed-circuit state contact or the open-circuit state contact, respectively, and each different signal contact combination form represents a corresponding set of operating parameters.

In a preferred embodiment of the present invention, the operation parameters of a plurality of the sound modules at least include audio characteristics of each of the sound modules.

In a preferred embodiment of the present invention, each of the sound modules has a planar frame and a sound generating unit, wherein the planar frame has a front side and a back side opposite to each other, the back side can be attached to the planar installation area, and the sound generating unit is disposed on the front side; 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 installed on the installation blocks respectively.

In a preferred embodiment of the present invention, the shape and size of the planar frame of the plurality of sound modules respectively have a front side and a back side opposite to each other, the back side of the planar frame can be attached to each of the mounting blocks, the sound generating unit is disposed on the front side of the planar frame, and the second connecting device is disposed on the back side of the planar frame.

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 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 that the film base material is fixed; 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, a plurality of functional modules can be selectively disposed in the plurality of mounting blocks of the planar mounting area, each of the plurality of functional modules has a planar frame, the shape and size of the planar frame of each of the functional modules is matched with the shape and size of each of the mounting blocks, and the plurality of functional modules and the planar frame of the plurality of acoustic modules can be commonly mounted in the plurality of mounting blocks of the planar mounting area.

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 the combination of the flat modular stereo of the present invention.

Fig. 2 is a block diagram of a system of the flat modular stereo of the present invention.

Fig. 3 is a partially exploded perspective view of a flat panel audio module according to an embodiment 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 flat modular audio of the present invention taken from a rear perspective.

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

Fig. 6 is a side sectional view of an audio module used in the flat modular audio of the present invention.

Fig. 7 is a schematic cross-sectional view of a thin film sound generating component used in a flat modular sound system according to the present invention.

Fig. 8 is a schematic perspective exploded view of a film sound-generating component used in the flat modular stereo of the present invention.

Fig. 9 is a schematic cross-sectional view of a film sound-generating component used in a flat modular sound system according to another embodiment of the present invention.

Fig. 10 is a schematic view showing the structure of the connection terminal pin of the first connection device and the second connection device used in the flat modular audio of the present invention.

Fig. 11 is a partially enlarged perspective view of the flat module audio of the present invention with a portion of the plurality of signal contacts of the second connecting means arranged as contacts in an open state.

Fig. 12 is a schematic view of the operation flow of the sound signal that is planned to be outputted to different sound modules by the control host of the flat modular sound of the present invention.

Detailed Description

As shown in fig. 1 to 3, the flat modular stereo 1 of the present invention includes a flat mounting area 10, a plurality of stereo modules 30, and a control host 20. The plurality of sound modules 30 are respectively installed on the plane installation area 10, each plane installation area 10 is respectively provided with a plurality of installation blocks 11, each installation block 11 is respectively provided with a first connecting device 12, the first connecting devices 12 are connected with the control host 20 through connecting wires 25, when the sound modules 30 are installed on each installation block 11, the sound modules can be connected with the first connecting devices 12 and connected with the control host 20 through the first connecting devices 12 and the connecting wires 25, the control host 20 outputs sound signals of a plurality of different sound channels corresponding to the sound modules 30 through the connecting wires 25, and the sound modules 30 output the sound signals.

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. 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 each installation block 11 are equal to each other.

In this embodiment, a surface of each of the mounting blocks 11 facing the audio module 30 is respectively provided with a plurality of hanging members 13 (as shown in fig. 3A) for positioning the audio module 30 on the respective mounting blocks 11, and a surface of each of the mounting blocks 11 is further provided with a first connecting device 12 (as shown in fig. 3B), and each of the first connecting devices 12 is connected to the control host 20 through a connecting wire 25.

As shown in fig. 1 and 2, the flat modular speaker 1 of the present invention can be configured such that a plurality of different speaker modules 30 are provided in the installation blocks 11 at different positions on the flat installation area 10. In addition to the audio module 30, different accessory modules 50 may be provided to the installation blocks 11. The accessory modules 50 each have a planar frame, and the planar frame of each accessory module 50 has a similar shape and size to the planar frame 31 of the audio module 30 and is disposed in each of the mounting blocks 11 by the hanging members 13 on 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 flat modular stereo 1 of the present invention can be used as a stereo device for playing music, and can be combined with different accessory modules 50 through the stereo module 30 to jointly form part of interior decoration and smart home environment.

As shown in fig. 3, 4 and 6, 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 to allow each of the sound modules 30 to be accommodated in each of the installation blocks 11. The planar frame 31 has opposite front and rear sides, and a sound generating unit 32 and a display unit 36 are disposed on the front side 311 of the planar frame 31.

The sound emission plane frame 31 can be abutted with the plurality of mounting blocks 11 of the plane mounting area 10 at the rear side surface 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. And a second connecting device 37 is disposed on the rear side 312 of the planar frame 31 corresponding to the position of the first connecting device 12, so that 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.

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, converting the sound signals of the different sound channels into sound signals in a digital format through the analog-to-digital converter 22, and outputting the sound signals through the control and processing module 23 and the first communication unit 24. The first communication unit 24 is connected to the first connection means 12 on each mounting block 11 by connection wires 25.

The circuit structure of each audio module 30 includes a second communication unit 301, a control unit 302, a digital-to-analog converter 303, and an amplifying circuit 304. The second communication unit 301 is electrically connected to the second connecting device 37, and the second connecting device 37 and the first connecting device 12 are matched to connect the respective audio module 30 and the control host 20, so that the audio module 30 can communicate with the control host 20, and the control host 20 can transmit the sound signal to each audio module 30. The second communication unit 301 is connected to the control unit 302 of the sound module 30 so that the control command of the control host 20 to each sound module 30 and the output sound signal can be transmitted to the control unit 302 of the sound module 30. The sound signal transmitted to the sound module 30 is a digital sound signal, and is converted into an analog sound signal by the digital-to-analog converter 303, and then amplified by the amplifying circuit to drive the sound generating unit 32, so that the sound signal is output for the user to listen.

The control unit 302 of the audio module 30 is further connected to a display unit 36 and the second connecting device 37, wherein the display unit 36 is disposed on the front side 311 (as shown in fig. 3) of the planar frame 31, and the display unit 36 has at least one display component 361 for displaying the operating 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.

As shown in fig. 2 and 3, after the plurality of sound modules 30 are disposed on the installation block 11, the control host 20 can further plan the sound signals output to each of the different sound modules 30 to create a sound field with stereo effect or surround effect.

Referring to fig. 2, fig. 3 and fig. 12, the control host 20 of the present invention can adjust the sound signal outputted to each of the sound modules 30 according to the set position of each of the sound modules 30 and the operating parameters such as the audio characteristics of each of the sound modules 30, so as to create a sound field with stereo or surround sound effect.

As shown in fig. 12, the control host is performing an operation procedure of outputting sound signals to different sound modules 30, wherein step S1 is to detect the installation block 11 installed with the sound modules 30 in the planar installation area 10. Since each audio module 30 is mounted on the mounting block 11 and can be connected to the first connecting means 12 of the mounting block 11 through the second connecting means 37, the control unit 20 can detect whether or not the audio module 30 is mounted on each mounting block 11 by a signal indicating whether or not the second connecting means 37 of the audio module 30 and the first connecting means 12 of the respective mounting block 11 are conductive.

Next, in step S2, the positional information of each of the mounting blocks 11 on which the audio module 30 is mounted is acquired. The control host 20 can store the position information of each installation block 11 in advance, and when it is detected that the audio module 30 is provided in each installation block 11, the control host can extract the position information corresponding to the installation block 11, thereby obtaining the position information of each installation block 11.

In step S3, the audio module 30 transmits the operation parameters representing each audio module to the control host 20. The operating parameters of the present invention include, but are not limited to, the audio characteristics of the individual sound modules 30.

Next, in step S4, the control host 20 plans the sound signal output to each sound module 30 according to the position information of the installation position of each sound module 30 and the operation parameters of each sound module 30.

The signal transmission and connection between the control unit 20 and each audio module 30 according to the present disclosure will be described in detail below. As shown in fig. 3B, 4 and 10, the first connecting device 12 and the second connecting device 37 used in the present invention have a plurality of

contact terminals

121 and 371, respectively, 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

connection terminals

121 and 371 can contact each other to achieve electrical connection. Therefore, the first and second connecting

devices

12 and 37 are matched with each other, so that the audio module 30 can be connected with the control host 20 when being hung on each installation block 11, thereby simplifying the structure of the audio module 30 and facilitating the installation procedure.

As shown in fig. 10, in this embodiment, the plurality of contact terminals 121 of the first connection device 12 has at least two audio contacts 122, and the plurality of contact terminals 371 of the second connection device 37 also has two audio contacts 372, wherein the audio contacts 122 of the first connection device 12 are connected to the control host 20, and when the audio contacts 372 of the second connection device 37 and the audio contacts 122 of the first connection device 12 are contacted, the sound signal output by the control host 20 can be transmitted to the sound module 30.

In addition, a plurality of

signal contacts

123, 373 are included in the plurality of

connection terminals

121, 371 of the first connection device 12 and the second connection device 37, and when the first connection device 12 and the second connection device 37 contact each other, the plurality of

signal contacts

123, 373 can contact each other, so that the audio module 30 can transmit an operation parameter to the control host 20 through the second connection device 37 and the first connection device 12 via the connection wire 25.

The operating parameters transmitted by the sound module 30 to the control host 20 may be, but are not limited to, the audio characteristics of each of the sound modules 30. As shown in fig. 1, a plurality of the sound modules 30 of the present invention can be designed to have different audio characteristics, so that when the control host 20 outputs sound signals of different channels corresponding to the plurality of sound modules 30, the sound signals of the different channels can be adjusted according to the operation parameters of the audio characteristics of each sound module 30, so that the sound signals of each different channel can be matched with the audio characteristics of the corresponding sound module 30.

The communication of the operating parameters between the audio module 30 and the control master 20 of the present invention can be, but is not limited to, by the following means, for example: the control unit 302 of the audio module 30 has a storage unit for storing the operating parameters, and when the second connecting device 37 of the audio module 30 is electrically connected to the first connecting device 12 of the mounting block 11, the operating parameters stored in the storage unit are transmitted to the control host 20 through the first and second connecting

devices

12 and 37 and the connecting wires 25.

For example, as shown in fig. 11, in this embodiment, among the plurality of signal contacts 373 of the second connecting device 37 of each of the sound modules 30, a part of the signal contacts 373 are selectively arranged as on-state contacts 373a, and the rest of the plurality of signal contacts 373 are arranged as off-state contacts 373 b. The method for making the signal contacts 373 in the open state of the present invention includes, but is not limited to, making some of the signal contacts 373 become the open-state contacts 373b by, for example, disconnecting the signal contacts 373 from the conductive traces or by setting the contacts to be in the open-state contacts 373b without contact terminals.

Therefore, the second connecting device 37 can obtain a plurality of different combinations of the signal contacts 373 by arranging the signal contacts 373 at different positions as the on-state contacts 373a or the off-state contacts 373b, respectively, and each combination of the different sets of signal contacts 373 represents a corresponding set of operating parameters, so that when the audio module 30 is installed on the installation block 11, the first connecting device 12 on the installation block 11 and the second connecting device 37 on the audio module 30 are electrically connected, the plurality of signal contacts 123 on the first connecting device 12 also correspondingly turn on or off the plurality of signal contacts 373 on the second connecting device 37, so that the control host 20 can detect the on-state or off-state of each signal contact 373 on the second connecting device 37, and further combine the on-state or off-state of each signal contact 373, the operation parameters of the corresponding sound module 30 are identified, and the control host 20 further adjusts the sound signal output to each sound module 30 according to the operation parameters.

As shown in fig. 3 and 6, 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 unit 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 unit having a structure and a space form suitable for being mounted on the planar frame 31 may 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 emitting unit 33, an electrostatic sound emitting unit 34, or a moving coil sound emitting 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 units 32 are formed by the sound components with different shapes or different structures of the sound modules 30, so that the different sound modules 30 have different audio frequency characteristics and are used for corresponding sound signals in different frequency ranges.

As shown in fig. 7 and 8, 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 film base 331 of the film sound emitting element 33 of the present invention preferably has a thickness of 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 material 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 circuit boards or conductors 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, each of the two conductive elements 334 has an extension 334a at one side, 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 production 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, thereby converting the sound source signal into sound for output.

It is specifically stated 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 disclosed in fig. 8, and can be designed into other shapes according to actual requirements.

As shown in fig. 9, in a variation of the film sound-generating component 33 of the present invention, the film sound-generating component 33 disclosed in the embodiment 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 formed 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. 9, 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 sound-generating component 33 of the present invention has the advantages of the above structure, and mainly, most areas of the film base material 331 are sound-generating areas capable of vibrating, so that the sound output efficiency can be effectively improved, the range of the audio frequency capable of being output by the film sound-generating component 33 is increased, and the sound output by the film sound-generating component 33 has the preferable details and the preferable 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.

[ technical effects of the embodiment ]

In summary, the present invention has the advantages that each of the sound modules 30 can be connected to the control host 20 by the first connecting device 12 and the second connecting device 37 contacting each other when being installed on the planar block 11, so that the planar installation area 10 does not need to be provided with a signal transmission line for connecting the sound module 30 and the control host 20, and the control host can adjust the sound signal corresponding to each of the sound modules 30 according to the installation position and the audio characteristics of each of the sound modules 30, thereby easily adjusting the sound effect of the output sound field and enhancing the flexibility of the use thereof.

In addition, the sound module 30 of the present invention has a flat structure and can have a good audio frequency range and sound quality, thereby improving the quality of sound output from the sound system.

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 flat modular speaker, comprising:

the plane installation area is divided into a plurality of installation blocks, and each installation block is respectively provided with a first connecting device;

a plurality of sound modules, wherein the sound modules can be selectively arranged in a plurality of installation blocks of the plane installation area respectively, a second connecting device is arranged at the position of the sound modules corresponding to the first connecting device of each installation block respectively, and when the sound modules are arranged in the installation blocks, the second connecting devices can be connected with the first connecting devices on the installation blocks;

a control host, connected to the plurality of first connecting devices in the plurality of installation blocks through connecting wires, wherein when the plurality of audio modules are installed in the plurality of installation blocks, the first connecting devices on each installation block and the second connecting devices on the audio modules are electrically connected to connect the plurality of audio modules to the control host, and the control host is capable of outputting a plurality of sound signals corresponding to the plurality of audio modules, transmitting the plurality of sound signals to the plurality of audio modules, and outputting the sound signals through the audio modules;

the control host stores position signals of each installation block, and when each sound module is arranged on a plurality of installation blocks, the control host can judge the signals of the sound modules arranged on the installation blocks through mutual conduction of the second connecting devices of the sound modules and the second connecting devices on the installation blocks, so that the position information of the installation blocks corresponding to each sound module is obtained, and the sound signals output to each sound module are planned according to the position information of the installation blocks corresponding to each sound module.

2. The flat panel sound system of claim 1, wherein the first connecting means and the second connecting means have at least one set of audio contacts for enabling sound signals output by the control host to be conducted to the sound system via the audio contacts; the first connecting device and the second connecting device are respectively provided with a plurality of signal contacts for transmitting an operating parameter of the sound module to the control host, and the control host adjusts and outputs a sound signal to each sound module according to the operating parameter of each sound module.

3. The flat panel sound of claim 2, wherein some of the signal contacts of the second connecting means are off state contacts and other of the signal contacts are on state contacts, the second connecting means obtains a plurality of different signal contact configurations by arranging the signal contacts as the on state contacts or the off state contacts, respectively, and each different set of signal contact configurations represents a corresponding set of operating parameters.

4. The flat panel sound system of any of claims 2-3, wherein the operating parameters of a plurality of the sound modules include at least an audio characteristic of each of the sound modules.

5. The flat modular sound of claim 4, wherein each of the sound modules has a flat frame and a sound generating unit, wherein the flat frame has opposite front and rear sides, the rear side is capable of being attached to the flat mounting area, and the sound generating unit is disposed on the front side; 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 installed on the installation blocks respectively.

6. The flat modular speaker of claim 5, wherein the flat housing of the plurality of speaker modules has opposing front and rear sides, the rear side of the flat housing being capable of abutting each of the mounting blocks, the sound unit being disposed on the front side of the flat housing, and the second connecting means being disposed on the rear side of the flat housing.

7. The flat panel sound system of claim 6, wherein the sound unit has one or a combination of a film sound generating unit, an electrostatic sound generating unit, and a moving coil sound generating unit.

8. The flat panel sound system of claim 7, wherein the membrane sound generating 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 components are respectively arranged on one side surface of the two conductive strips opposite to the film substrate, are in a shape corresponding to the two conductive strips and cover and contact one side surface of the two conductive strips opposite to the film substrate; the two conductive components are respectively electrically connected with an audio source signal.

9. The flat panel sound system of claim 8, wherein the membrane sound module is disposed flush against the front side of the flat panel enclosure.

10. The flat panel sound system of claim 9, wherein the film substrate is a polyvinylidene fluoride film and the two conductive layers are metal films or metal oxide films.

11. The flat panel sound box of claim 10, wherein the two conductive strips are conductive adhesive or metal conductive layers plated on the surfaces of the two conductive layers.

12. The flat panel sound system of claim 11, further comprising a frame structure disposed on the film substrate at the edge of the working area, 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 that the film base material is fixed; 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.

13. The flat panel modular stereo of claim 6, wherein a plurality of functional modules are selectively arranged in a plurality of the installation blocks of the flat panel installation area, the plurality of functional modules each having a flat frame, the shape and size of the flat frame of each of the functional modules being matched to the shape and size of each of the installation blocks, and being capable of being installed in the plurality of installation blocks of the flat panel installation area in common with the flat frame of the plurality of the stereo modules.