阅读说明：本技术 一种具有蓝牙功能的动感音箱 (Dynamic sound box with Bluetooth function ) 是由 龚文基 于 2021-07-22 设计创作，主要内容包括：本发明实施例公开了一种具有蓝牙功能的动感音箱,控制器通过数字音频处理器分别与第一双声道D类功率放大器、第二双声道D类功率放大器和单通道D类工功率放大器电连接,第一双声道D类功率放大器与左声道扬声器进行电连接,第二双声道D类功率放大器与右声道扬声器进行电连接,单通道D类工功率放大器与超低频振子单元进行电连接,音频播放器和权限模块均设置于控制器中,供电模块设置于壳体内部且与控制器电连接,控制器通过设置于壳体上的对外接口直接与外部设备相连通。本发明实施例提供一种具有蓝牙功能的动感音箱,在不增加音量和低音加强装置的情况下,提高体验者的低频震感、保障音响的低音效果。(The embodiment of the invention discloses a dynamic sound box with a Bluetooth function, wherein a controller is respectively and electrically connected with a first double-track D-type power amplifier, a second double-track D-type power amplifier and a single-channel D-type power amplifier through a digital audio processor, the first double-track D-type power amplifier is electrically connected with a left-track loudspeaker, the second double-track D-type power amplifier is electrically connected with a right-track loudspeaker, the single-channel D-type power amplifier is electrically connected with an ultra-low frequency vibrator unit, an audio player and an authority module are both arranged in the controller, a power supply module is arranged in a shell and is electrically connected with the controller, and the controller is directly communicated with external equipment through an external interface arranged on the shell. The embodiment of the invention provides a dynamic sound box with a Bluetooth function, which can improve the low-frequency vibration sense of an experiencer and ensure the bass effect of the sound box under the condition of not increasing the volume and a bass strengthening device.)

1. The utility model provides a dynamic audio amplifier with bluetooth function which characterized in that: comprises a shell, a Bluetooth receiving module, an infrared receiving module, an audio player, an authority module, a wireless transmission module, a digital audio processor, a first dual-channel D-type power amplifier, a second dual-channel D-type power amplifier, a left-channel loudspeaker, a right-channel loudspeaker, a single-channel D-type power amplifier, an ultra-low frequency oscillator unit, a power supply module, an external interface, a power supply module and a controller, wherein external equipment is electrically connected with the controller through the Bluetooth receiving module, the infrared receiving module and/or the wireless transmission module, the controller processes data information transmitted by a mobile terminal and transmits the data information in the equipment to the mobile terminal for feedback, and the controller is respectively and electrically connected with the first dual-channel D-type power amplifier, the second dual-channel D-type power amplifier and the single-channel D-type power amplifier through the digital audio processor, the first double-channel D-type power amplifier is electrically connected with the left channel loudspeaker, the second double-channel D-type power amplifier is electrically connected with the right channel loudspeaker, the single-channel D-type power amplifier is electrically connected with the ultralow frequency oscillator unit, the audio player and the authority module are both arranged in the controller, the power supply module is arranged inside the shell and is electrically connected with the controller, and the controller is directly communicated with external equipment through an external interface arranged on the shell.

2. The dynamic sound box with the Bluetooth function of claim 1, wherein: the number of the ultra-low frequency vibrator units is three, and the three ultra-low frequency vibrator units are designed in parallel.

3. The dynamic sound box with the Bluetooth function of claim 1, wherein: the external equipment comprises a mobile terminal and/or a storage device.

4. The dynamic sound box with the Bluetooth function of claim 1, wherein: the battery module selects a lithium iron phosphate storage battery.

5. The dynamic sound box with the Bluetooth function of claim 1, wherein: the controller is a control chip.

6. The dynamic sound box with the Bluetooth function of claim 1, wherein: the casing outside is provided with volume control button, the inside volume control chip that is provided with of casing, volume control button is connected with volume control chip electricity, the removal end can directly communicate the volume control chip through the controller and adjust the volume that left channel speaker, right channel speaker and/or ultra low frequency oscillator are single, the authority module sets for the same to the authority of volume control button and removal end, volume control button and removal end can operate the size of volume simultaneously.

7. The dynamic sound box with the Bluetooth function of claim 1, wherein: the casing outside still is provided with switch, the inside power switching chip that is provided with of casing, it can open through controller direct control power switching chip control power module to remove the end, and switch can open through power switching chip direct control power module, the authority module sets for the same to switch and the authority of removing the end, and switch and removal end can operate power module's switching simultaneously.

8. The dynamic sound box with the Bluetooth function of claim 1, wherein: the external interface adopts a USB interface.

Technical Field

The embodiment of the invention relates to the technical field of cushions, in particular to a dynamic sound box with a Bluetooth function.

Background

Sound boxes have been widely used in various fields as a sound energy converter, including professional sound reinforcement sound boxes, monitor sound boxes, home stereo HIFI sound boxes, surround sound boxes, desktop sound boxes, sound boxes with bluetooth function, and the like, and these sound boxes are mainly characterized in that sound conduction is performed through air, and the sound boxes are also in various forms, for example; vertical sound boxes, array sound boxes, ceiling sound boxes, flat sound boxes, cylindrical sound boxes, spherical sound boxes, strip-shaped sound boxes and the like. Conventional speakers, including active, passive and bluetooth speakers, are listened to by the vibrations of the speaker unit being conducted from the air medium to the experience's ear. In order to achieve the experience effect of the ultra-low-frequency (bass) vibration, listeners often need a very large volume and an auxiliary sound box (commonly called a subwoofer) with a bass enhancing device to cooperate with each other, so that noise pollution to the surrounding environment is often caused when the listeners are used at home, and meanwhile, in order to obtain the bass effect, the design of a large-caliber loudspeaker, a corresponding power amplifier and a sound box structure is needed to achieve the purpose, so that the manufacturing cost and the difficulty are increased. Further, the intensity of the ultra-low-frequency sound wave experienced by the listener through the air medium is limited, and the ultra-low-frequency sound wave cannot be focused on a certain region (portion) of the body of the listener. Therefore, how to improve the low-frequency vibration sense of the experiencer and ensure the bass effect of the sound under the condition of not increasing the volume and the bass strengthening device is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

Therefore, the embodiment of the invention provides a dynamic sound box with a bluetooth function, so as to solve the problems of the prior art.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the dynamic sound box with the Bluetooth function disclosed by the embodiment of the invention comprises a shell, a Bluetooth receiving module, an infrared receiving module, an audio player, an authority module, a wireless transmission module, a digital audio processor, a first double-channel D-type power amplifier, a second double-channel D-type power amplifier, a left-channel loudspeaker, a right-channel loudspeaker, a single-channel D-type industrial power amplifier, an ultra-low frequency oscillator unit, a power supply module, an external interface, a power supply module and a controller, wherein external equipment is electrically connected with the controller through the Bluetooth receiving module, the infrared receiving module and/or the wireless transmission module, for example, the infrared receiving module is directly controlled to switch on and off the power supply through remote control, the Bluetooth receiving module is connected with mobile equipment with corresponding authority through a Bluetooth antenna to carry out regulation control, and the controller processes data information transmitted by a mobile terminal and transmits the data information in the equipment to the mobile terminal for feedback, the controller is respectively and electrically connected with the first double-channel D-type power amplifier, the second double-channel D-type power amplifier and the single-channel D-type power amplifier through the digital audio processor, the first double-channel D-type power amplifier is electrically connected with the left-channel loudspeaker, the second double-channel D-type power amplifier is electrically connected with the right-channel loudspeaker, the single-channel D-type power amplifier is electrically connected with the ultralow frequency vibrator unit, the audio player and the authority module are both arranged in the controller, the power supply module is arranged inside the shell and electrically connected with the controller, and the controller is directly communicated with external equipment through an external interface arranged on the shell.

Furthermore, the number of the ultra-low frequency oscillator units is three, and the three ultra-low frequency oscillator units are designed in parallel.

Further, the external device includes a mobile terminal and/or a storage device.

Furthermore, the battery module selects a lithium iron phosphate storage battery.

Further, the controller selects a control chip.

Further, the casing outside is provided with volume control button, the inside volume control chip that is provided with of casing, volume control button is connected with volume control chip electricity, the removal end can directly communicate the volume control chip through the controller and adjust the volume that left channel speaker, right channel speaker and/or ultra low frequency oscillator are single, the authority module sets for the same to the authority of volume control button and removal end, and volume control button and removal end can operate the size of volume simultaneously.

Further, the outside still is provided with switch, the inside power switching chip that is provided with of casing, it can open through controller direct control power switching chip control power module to remove the end, and switch can open through power switching chip direct control power module, the authority module sets for the same to switch and the authority that removes the end, and switch and removal end can operate power module's switching simultaneously.

Furthermore, the external interface adopts a USB interface, and can be directly connected with the dynamic sound box through a mobile hard disk or mobile equipment through a data line.

Further, the embodiment of the invention has the following advantages:

according to the invention, through the mutual cooperation of the digital audio processor, the first dual-channel D-type power amplifier, the second dual-channel D-type power amplifier, the left-channel loudspeaker, the right-channel loudspeaker, the single-channel D-type power amplifier and the ultra-low frequency vibrator unit, the small-volume sound box can obtain a larger ultra-low sound energy experience effect, meanwhile, the leakage of low-frequency sound waves is reduced, and the phenomenon that the dynamic sound box causes excessive sound interference to the periphery is avoided while the sufficient ultra-low sound experience effect is obtained after the use of a user is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.

Fig. 1 is a connection block diagram of a dynamic sound box with a bluetooth function according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, the present invention discloses a sound box with bluetooth function, including a housing, a bluetooth receiving module, an infrared receiving module, an audio player, an authority module, a wireless transmission module, a digital audio processor, a first dual-channel class D power amplifier, a second dual-channel class D power amplifier, a left channel speaker, a right channel speaker, a single-channel class D power amplifier, an ultra-low frequency oscillator unit, a power supply module, an external interface, a power module and a controller, wherein an external device is electrically connected to the controller via the bluetooth receiving module, the infrared receiving module and/or the wireless transmission module, for example, the external device directly controls the power on/off of the infrared receiving module by remote control, the bluetooth receiving module is connected to a mobile device with corresponding authority via a bluetooth antenna for regulation control, the controller processes data information transmitted from the mobile terminal and transmits the data information in the device to the mobile terminal for feedback, the controller is respectively and electrically connected with the first double-channel D-type power amplifier, the second double-channel D-type power amplifier and the single-channel D-type power amplifier through the digital audio processor, the first double-channel D-type power amplifier is electrically connected with the left-channel loudspeaker, the second double-channel D-type power amplifier is electrically connected with the right-channel loudspeaker, the single-channel D-type power amplifier is electrically connected with the ultralow frequency vibrator unit, the audio player and the authority module are both arranged in the controller, the power supply module is arranged inside the shell and electrically connected with the controller, and the controller is directly communicated with external equipment through an external interface arranged on the shell. According to the invention, through the mutual cooperation of the digital audio processor, the first dual-channel D-type power amplifier, the second dual-channel D-type power amplifier, the left-channel loudspeaker, the right-channel loudspeaker, the single-channel D-type power amplifier and the ultra-low frequency vibrator unit, the small-volume sound box can obtain a larger ultra-low sound energy experience effect, meanwhile, the leakage of low-frequency sound waves is reduced, and when the sufficient ultra-low sound experience effect behind a user is ensured, the excessive sound interference of the dynamic sound box to the periphery is avoided.

The number of the low-frequency vibrator units is three, and the three ultralow-frequency vibrator units are designed in parallel, so that the sound equipment can obtain enough ultralow sound effect. The external equipment comprises a mobile terminal and/or storage equipment, the external interface adopts a USB interface, and the external interface can be directly connected with the dynamic sound box through a mobile hard disk or mobile equipment through a data line. The controller selects a control chip, and the control chip selects an LM3886 chip.

The casing outside is provided with volume control button, the inside volume control chip that is provided with of casing, volume control button is connected with volume control chip electricity, the removal end can directly communicate the volume control chip through the controller and adjust the volume that left channel speaker, right channel speaker and/or ultra low frequency oscillator are single, the authority module sets for the same to the authority of volume control button and removal end, volume control button and removal end can operate the size of volume simultaneously. The casing outside still is provided with switch, the inside power switching chip that is provided with of casing, it can open through controller direct control power switching chip control power module to remove the end, and switch can open through power switching chip direct control power module, the authority module sets for the same to switch and the authority of removing the end, and switch and removal end can the simultaneous operation power module's switching.

The first dual-channel class-D power amplifier, the second dual-channel class-D power amplifier and the single-channel class-D power amplifier have the same structure and are all class-D power amplifiers. When an analog audio signal is input, the analog audio signal is modulated into a high-frequency PWM pulse signal with corresponding pulse width through a PWM modulator, the PWM pulse signal is transmitted to two amplifiers which are connected oppositely, and the two amplifiers are connected with a left sound channel loudspeaker, a right sound channel loudspeaker and/or an ultra-low frequency vibrator unit through a network transformer (LFE) and a load loop (RL). When the class-D power amplifier works, no current exists when no signal is input, no direct current loss exists when the class-D power amplifier is electrified, the actual efficiency can reach 80% -90%, and the class-D power amplifier is the highest in efficiency in practical amplifiers; because the D-type power amplifier has high efficiency, 100 watts of sound equipment and more than ten watts of direct-current loss power, the normal work of the D-type power amplifier can be ensured by mounting a radiator of more than centimeters, the area of a circuit board is greatly reduced, and the volume and the weight of sound equipment are also greatly reduced. The external mobile terminal adopts a mobile phone (or other players with Bluetooth function) to play and realizes the audio playing of the dynamic sound box through the Bluetooth wireless audio transmission technology, which is an important link for realizing convenience.

The working principle is as follows:

when the device is used, the authority of a mobile terminal which is externally connected is limited through an authority module of the dynamic sound, the mobile terminal is connected with the dynamic sound through a Bluetooth receiving module or a wireless transmission module, or an infrared receiving module on an infrared control shell is used for starting a power supply module to work, the mobile terminal is connected with music playing installed in a control module to select music playing, and the playing effect of a full-range is achieved through a digital audio processor, a first dual-channel D-type power amplifier, a second dual-channel D-type power amplifier, a left channel loudspeaker and a right channel loudspeaker; and the single-channel D-type power amplifier and the ultralow frequency oscillator unit are matched to ensure the sufficient ultralow-frequency experience effect after a user, so that the excessive sound interference of the dynamic sound on the periphery is avoided.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.