CN216414516U - Desktop type multiaspect sound production integrated device - Google Patents

Abstract

The utility model discloses a desktop type multi-surface sound production integrated device, which comprises a box body, a loudspeaker, a key board, an external connection board, an electric control board, a display, a power supply and an inverted tube, wherein the loudspeaker is arranged on the box body; the side walls of the box body are respectively provided with the loudspeakers, and each side wall provided with the loudspeaker corresponds to an independent sounding inner cavity; the phase inversion tube is arranged in each sounding inner cavity, and the opening of the phase inversion tube is communicated with the outside of the box body; the key board, the external connection board and the display are all embedded in the side wall of the box body, and the electric control board and the power supply are installed in the box body; the electric control board is respectively electrically connected with the loudspeaker, the key board, the external connection board, the display and the power supply. The utility model overcomes the problem of acoustic image inconsistency, reduces microphone squeaking and sound refraction and improves the speech definition.

Description

Desktop type multiaspect sound production integrated device

Technical Field

The utility model relates to the technical field of sound equipment, in particular to a desktop type multi-surface sound production integrated device.

Background

The traditional sound reinforcement system for the conference room is applied to sound reinforcement by mounting various sound reinforcement devices on (in) the wall or the suspended ceiling around the conference room in a hanging, embedding and other modes. The application of sound reinforcement needs to be normally used after wiring in the early period of decoration, gathering, connecting with a power amplifier, a microphone mixer, an equalizer, a sound console, a pressure limiter, a feedback suppressor, a power supply manager, wireless microphones and other equipment in a combined manner and debugging by professionals.

The traditional conference room sound reinforcement system has the following defects:

1. due to the characteristics of the sound production angle and the installation position of the traditional sound reinforcement sound box (hanging the sound box on four walls or embedding the sound box on the top), the sound is produced at the back or the top of the participants. The position of the speaker is not consistent with the sound producing direction of the sound amplifying sound box, so that the sound image is dislocated, and the speaker feels uncomfortable. 2. The sounding and mounting mode can make the microphone pointing to the sound box more easily generate sound reverberation and feedback squeal. 3. Conventional mounting and single-point speakers can result in multiple reflections of sound that reduce speech intelligibility. 4. This conventional mounting and single-point speaker takes up more space and consumes more sound power, which is wasted on the device. 5. The traditional installation mode and the installation and debugging of the loudspeaker with single direction require that professional construction is complex, time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the problem of acoustic image inconsistency is solved, microphone howling and sound refraction are reduced, and the voice definition is improved. The utility model provides a desktop type multi-surface sound production integrated device, which comprises a box body, a loudspeaker, a key board, an external connection board, an electric control board, a display, a power supply and an inverted tube, wherein the loudspeaker is arranged on the box body;

the side walls of the box body are respectively provided with the loudspeakers, and each side wall provided with the loudspeaker corresponds to an independent sounding inner cavity; the phase inversion tube is arranged in each sounding inner cavity, and the opening of the phase inversion tube is communicated with the outside of the box body;

the key board, the external connection board and the display are all embedded in the side wall of the box body, and the electric control board and the power supply are installed in the box body; the electric control board is respectively electrically connected with the loudspeaker, the key board, the external connection board, the display and the power supply.

The utility model has the beneficial effects that:

the box is placed on meeting room and conference table, and the sound production more than two sides or two sides is through enlargiing the back with the signal that the microphone was received, is broadcast by the speaker, and wherein controller processing signal reaches pronunciation clarity, fidelity's effect with sound source optimization processing back, has kept the audio-visual uniformity simultaneously, has alleviated listener's bad sensation. Compare traditional public address audio amplifier, reduced the microphone that produces when the microphone sound head is facing to sound generating mechanism greatly and whistled and the possibility of sound refraction problem to promote the microphone speech distance effectively, the public address effect is stable.

Preferably, the electric control board comprises a power amplification module, a CPU module, a DSP module and an ADP module, and the CPU module is electrically connected with the power amplification module DSP module and the ADP module, respectively.

Preferably, all speakers are electrically connected to the power amplification module.

Preferably, the system comprises a Wifi module and a Bluetooth module, wherein the Wifi module and the Bluetooth module are electrically connected with the ADP module. The Wifi module and the bluetooth module support to be connected with mobile devices, such as mobile phones, computers and the like, and the connection mode is various and convenient to use.

Preferably, the external connection board is provided with a USB interface, an external audio 3.5 interface and a signal input interface, and the display and the external connection board are electrically connected with the DSP module.

Preferably, the microphone comprises a U-section microphone receiving module and a V-section microphone receiving module which are electrically connected with the DSP module.

Preferably, the key board is electrically connected with the DSP module; the keypad includes a volume adjustment button and a mode button.

Preferably, every two adjacent sounding cavities are separated by a partition plate. The baffle has fine syllable-dividing effect, avoids the sound production inner chamber crosstalk, influences the effect.

Preferably, at least two speakers are provided per side wall provided with a speaker.

Preferably, the power supply comprises a lithium battery and a charging module, and the charging module is provided with a 220V power interface or a 220V plug. The lithium polymer battery can be continuously used for more than 10 hours after being charged once, and can also be connected with a 220V power supply for use.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a case in this embodiment;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a schematic circuit diagram of the present embodiment.

In the attached drawing, a box body 1, a loudspeaker 2, a key board 3, an external connection board 4, a display 5, a power supply 6, an inverter tube 7, a partition board 8, a sound production inner cavity 9, a power amplification module 10, a CPU module 11, a DSP module 12 and an ADP module 13.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

As shown in fig. 1-3, the present embodiment provides a desktop multi-surface sound integrated device, which includes a housing 1, a speaker 2, a key pad 3, an external board 4, an electronic control board, a display 5, a power source 6, and an inverter tube 7. The shape of the box body 1 may be a hollow rectangular body, a hollow square, a hollow trapezoid body, etc., and the shape of the box body 1 is not limited in this embodiment. The following takes the rectangular body as an example:

two opposite lateral walls of the box body 1 are respectively provided with the loudspeaker 2, and each lateral wall provided with the loudspeaker 2 corresponds to an independent sounding inner cavity 9. Specifically, the two sounding cavities 9 are separated by a partition 8. The baffle 8 has good sound insulation effect, and avoids crosstalk of the sound production inner cavity 9 to influence the effect. Each side wall provided with a loudspeaker 2 is provided with two loudspeakers 2, the two loudspeakers 2 being horizontally side by side. In addition, the inverter tube 7 is arranged in each sounding cavity 9, and the opening of the inverter tube 7 is communicated with the outside of the box body 1. The inverter tube 7, also called a reflection tube, is a playback device. The phase inversion type speaker exposes a diaphragm of the speaker to the outside to generate sound, and the rear side of the speaker also vibrates. After the inverter tube is installed, the diameter of the inverter tube is smaller than that of the loudspeaker, and the sound wave rushes out of the inverter tube, so that the sound waves in the front direction and the back direction of the loudspeaker are utilized, and the sound quality is improved.

In the embodiment, the key board 3, the external board 4 and the display 5 are all embedded in the side wall of the box body 1, and the electric control board and the power supply 6 are installed in the box body 1; the electric control board is respectively electrically connected with the loudspeaker 2, the key board 3, the external connection board 4, the display 5 and the power supply 6. The specific circuit connection structure of this embodiment is as follows:

as shown in fig. 4, the electronic control board includes a power amplification module 10, a CPU module 11, a DSP module 12, and an ADP module 13, where the CPU module 11 is electrically connected to the power amplification module 10, the DSP module 12, and the ADP module 13, respectively. Wherein all speakers 2 are electrically connected to the power amplifying module 10. The external connection board 4 is provided with a USB interface, an external audio 3.5 interface and a signal input interface, and the display 5 and the external connection board 4 are both electrically connected with the DSP module 12. Comprises a U-section microphone receiving module and a V-section microphone receiving module which are electrically connected with the DSP module 12. The system integrates wireless V-section microphone transmission, U-section microphone transmission and two chairman units, and at most 18 representative units have a first-in first-out function. The microphone type can be according to user's needs independent purchase hand-held microphone, neck clip formula microphone, and head-mounted microphone, the collocation of free choice. The present embodiment is composed of multiple sets of high fidelity high and low sound units, and an electronic frequency division decoder is arranged in the high fidelity high and low sound units. Related technical parameters are input through a CPU module 11 decoder and a DSP module 12 to manage and control sound frequency so as to achieve the purpose that the handheld wireless microphones which can be connected to 2 or more than 2 do not interfere with each other and have howling; especially, when the sound head of the microphone faces the sound generating device, the microphone generates self-attack howling, so that the speaking distance of the microphone is effectively increased, and the service life of the sound generating device is prolonged.

The key board 3 is electrically connected with the DSP module 12; the key sheet 3 includes a volume adjustment button and a mode button. The Bluetooth wireless communication device further comprises a Wifi module and a Bluetooth module. The Wifi module and the Bluetooth module are electrically connected with the ADP module 13. The Wifi module and the bluetooth module support to be connected with mobile devices, such as mobile phones, computers and the like, and the connection mode is various and convenient to use.

In this embodiment, the power supply 6 includes a lithium battery and a charging module, and the charging module is provided with a 220V power supply 6 interface or a 220V plug. The lithium polymer battery can be continuously used for more than 10 hours after being charged once, and can also be connected with a 220V power supply 6 for use. The power supply 6 interface or 220V plug extends from the bottom of the case 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (10)

1. The utility model provides a desktop type multiaspect sound production integrated device which characterized in that: comprises a box body, a loudspeaker, a key board, an external connection board, an electric control board, a display, a power supply and an inverter tube;

the side walls of the box body are respectively provided with the loudspeakers, and each side wall provided with the loudspeaker corresponds to an independent sounding inner cavity; the phase inversion tube is arranged in each sounding inner cavity, and the opening of the phase inversion tube is communicated with the outside of the box body;

the key board, the external connection board and the display are all embedded in the side wall of the box body, and the electric control board and the power supply are installed in the box body; the electric control board is respectively electrically connected with the loudspeaker, the key board, the external connection board, the display and the power supply.

2. The integrated desktop multi-sided sound emitting device of claim 1, wherein: the electric control board comprises a power amplification module, a CPU module, a DSP module and an ADP module, wherein the CPU module is respectively and electrically connected with the DSP module and the ADP module of the power amplification module.

3. The integrated desktop multi-sided sound emitting device of claim 2, wherein: all the loudspeakers are electrically connected with the power amplification module.

4. The integrated desktop multi-sided sound emitting device of claim 2, wherein: including Wifi module and bluetooth module, Wifi module and bluetooth module all are connected with the ADP module electricity.

5. The integrated desktop multi-sided sound emitting device of claim 2, wherein: the external connection board is provided with a USB interface, an external audio 3.5 interface and a signal input interface, and the display and the external connection board are electrically connected with the DSP module.

6. The integrated desktop multi-sided sound emitting device of claim 5, wherein: the microphone comprises a U-section microphone receiving module and a V-section microphone receiving module which are electrically connected with a DSP module.

7. The integrated desktop multi-sided sound emitting device of claim 2, wherein: the key board is electrically connected with the DSP module; the keypad includes a volume adjustment button and a mode button.

8. The integrated desktop multi-sided sound emitting device of claim 1, wherein: every two adjacent sounding cavities are separated by a partition plate.

9. The integrated desktop multi-sided sound emitting device of claim 1, wherein: at least two loudspeakers are arranged on each side wall provided with the loudspeakers.

10. The integrated desktop multi-sided sound emitting device of claim 1, wherein: the power supply comprises a lithium battery and a charging module, and the charging module is provided with a 220V power interface or a 220V plug.

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