TECHNICAL FIELD

The present invention relates to the field of audio playback, and in particular, to an integrated karaoke device.

BACKGROUND ART

In spite of the wide and mature karaoke technology and application thereof, there are few portable simplified devices and even fewer individualized karaoke products, such that karaoke can be used only in special places or fixed places, causing much inconvenience. Moreover, various existing microphones, including microphones having a karaoke reverberation function, have mature technology and wide application, but the microphone is usually a separate, stand-alone microphone product and must be used with an external sound box or other devices. Because the sound box generates, along with the sound, vibration having the same frequency as that of the sound, when the microphone is integrated with or close to the sound box, the sound input from the microphone is amplified by the sound box and then transmitted to the microphone through the housing. The microphone then again inputs and amplifies the sound of the same frequency, and a strong self-feedback effect, that is, self-excitation effect, is produced after repeated amplification many times. At this time, the sound box produces a persistent and continuously strengthened sound of the same frequency (referred to herein as a squeal), completely disrupting the normal use.

Existing designs change the frequency of the sound to make the frequency or frequency phase of the input sound different from the output frequency or frequency phase, thereby avoiding squealing, or remove specific frequencies and so on through actual application or calculation, so as to avoid squealing. However, all these methods cause serious distortion of sounds and cannot meet requirements for desirable sound quality.

Therefore, integration of a microphone and a sound box to achieve portability and a direct karaoke effect, and to enable people to enjoy singing and enjoy the fun of music at any time and any place, with unchanged or even improved sound quality, is an aspiration of many people.

Technical Problem

The technical problem to be solved by the present invention is to provide an integrated karaoke device in view of the defect in the prior art that a strong self-feedback effect is produced that completely disrupts the normal use when a microphone and a sound box are integrated.

Solution to the Problem

Technical Solution

The technical solution adopted in the present invention to solve the technical problem thereof is: an integrated karaoke device is constructed, including a microphone and a sound box, where the sound box includes a sound chamber containing a loudspeaker, and the integrated karaoke device further includes a connecting part made of flexible material that is fixedly connected between a bottom of the microphone and a top of the sound chamber. The use of a flexible material connecting part, rather than a solid structural part, reduces the transmission to the microphone of sound vibration generated by the sound box.

In the aforementioned integrated karaoke device, a plastic part is fixedly connected to the bottom of the microphone and penetrates a top of the flexible material connecting part so as to secure the flexible material connecting part to the microphone. A printed circuit board (PCB) is fixedly connected to the plastic part, and a gap is kept between the PCB and the top of the sound chamber.

In the aforementioned integrated karaoke device, a sidewall of the flexible material connecting part is provided with a first opening and a second opening, the PCB is provided with a first port and a second port, and the first port and the second port are correspondingly fitted in the first opening and the second opening, respectively.

In the aforementioned integrated karaoke device, the sound box further includes a silicone ring, a plastic ring, and a trumpet-shaped mesh that are fixedly connected to a bottom of the loudspeaker in turn. The bottom of the loudspeaker is flush with the bottom of the sound chamber.

In the aforementioned integrated karaoke device, a distance between the PCB and the top of the sound chamber is greater than 4 mm.

In the aforementioned integrated karaoke device, a circuit board is mounted in the microphone and the circuit board is provided with a Bluetooth module.

In the aforementioned integrated karaoke device, the flexible material connecting part is made of silicone.

In the aforementioned integrated karaoke device, the flexible material connecting part is made of any one of rubber, thermoplastic polyurethane (TPU), and soft plastic.

In the aforementioned integrated karaoke device, a bottom of the flexible material connecting part is connected to the top of the sound chamber by means of threads or screws.

In the aforementioned integrated karaoke device, a bottom of the flexible material connecting part is adhered to the top of the sound chamber.

Beneficial Effect of the Invention

Beneficial Effect

The implementation of the integrated karaoke device of the present invention has the following beneficial effect: The top of a flexible material connecting part is fixedly connected to the bottom of a microphone by means of a plastic part, and the bottom of the flexible material connecting part is fixed to the top of a sound chamber. Meanwhile, a gap is kept between the bottom of a PCB that is also fixedly connected to the plastic part and the top of the sound chamber. When a person sings aloud, because the flexible connecting part can effectively eliminate vibration from being transmitted to the microphone from the sound box, sound vibration generated by the sound box is no longer transmitted to the microphone (as it would be if a solid structural part were used instead of the flexible material connecting part), so that the production of a feedback self-excitation mechanism is fundamentally eliminated, thereby effectively inhibiting squealing. Meanwhile, with this product, people can sing karaoke at any time and any place without the restriction of places or numerous devices. Thus, a user can sing a song loudly and share the joy with friends at any time no matter whether he is indoors or outdoors, on a journey or on a mountain top. Additionally, with mobile phones having become now indispensable for people to carry, a wireless Bluetooth connection to the mobile phone can be established by enabling a Bluetooth function of the integrated karaoke device, and a real karaoke effect is achieved with the accompaniment of music played from the mobile phone.

