BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an earphone, and more particularly to a TWS (true wireless stereo) bone conduction earphone.

2. Description of the Prior Art

Earphones are classified into wired earphones and wireless earphones. The two earphone bodies of the wired earphones communicate with a terminal device through data cables. Since data cables are often entangled, the use of wired earphones is inconvenient. A wireless earphone communicates with the terminal device through wireless technology, such as Bluetooth. TWS (True Wireless Stereo) earphones are one of wireless earphones. TWS bone conduction earphones are mainly composed of a first wireless earphone and a second wireless earphone. Technically, TWS bone conduction earphone means that the terminal device communicates with the first wireless earphone through Bluetooth, and the first wireless earphone communicates with the second wireless earphone through the Bluetooth communication protocol, thereby realizing the true wireless separation and use of the left and right channels of Bluetooth.

Most of the existing TWS earphones use air conduction. The specific principle is that sound brings air vibration, enabling the user to hear the sound. Then, the vibration is transmitted to the eardrum through the external acoustic meatus and then to the internal ear nerve through the eardrum. Obviously, wearing such earphones for a long time will cause ear discomfort and a certain degree of damage to hearing.

SUMMARY OF THE INVENTION

In view of the shortcomings of the prior art, the primary object of the present invention is to provide a TWS (true wireless stereo) bone conduction earphone to avoid hearing loss.

In an embodiment of the present invention, a TWS (True Wireless Stereo) bone conduction earphone is provided. The TWS bone conduction earphone comprises an earphone housing and an earphone body. The earphone housing is configured to accommodate the earphone body. The earphone body includes a storage module, a Bluetooth module and a bone conduction module. The storage module is configured to store a Bluetooth address corresponding to a Bluetooth device to be connected and paired. The Bluetooth module is configured to establish a communication with the corresponding Bluetooth device according to the Bluetooth address to obtain an audio signal from the Bluetooth device. The bone conduction module vibrates according to the audio signal for transmitting sounds through ossicles.

In one of the possible implementations, the earphone housing includes a first housing and a second housing; the first housing and the second housing are engaged with each other to form a main receiving chamber for receiving the earphone body.

In one of the possible implementations, the first housing includes a first connecting portion and a first housing portion; the first housing portion is arranged at one side of the first connecting portion; the second housing includes a second connecting portion and a second housing portion; the second connecting portion is engaged with the first connecting portion to form a first receiving chamber; the second housing portion is arranged at one side of the second connecting portion, a touch area is provided on an outer side wall of the second housing portion, so as to control the TWS bone conduction earphone by operating the touch area; the second housing portion is engaged with the first housing portion to form a second receiving chamber, wherein the first receiving chamber and the second receiving chamber are configured to receive the earphone body.

In one of the possible implementations, the earphone housing further includes an ear hook. The ear hook is a curved ear hook to be located behind a pinna of a user's ear. The ear hook includes a first connecting end and a free end. The first connecting end is connected to the second connecting portion. The free end is opposite to the first connecting end. The free end is arc-shaped. When the user wears the TWS bone conduction earphone, the free end of the ear hook is located above a back side of the user's ear.

In one of the possible implementations, the ear hook is detachably connected to the second connecting portion.

In one of the possible implementations, the second connecting portion is provided with an engaging portion, the first connecting end of the ear hook is provided with a receiving cavity, and the engaging portion is detachably connected to the receiving cavity.

In one of the possible implementations, the TWS bone conduction earphone further comprises an ear hook. The ear hook is a head-mounted ear hook. The TWS bone conduction earphone includes two TWS bone conduction earphones. Two ends of the head-mounted ear hook are connected to the earphone housings of the two TWS bone conduction earphones, respectively.

In one of the possible implementations, the bone conduction module includes a power amplifier and a bone conduction vibrator; the power amplifier is electrically connected to the bone conduction vibrator and the Bluetooth module, and is configured to process and transmit the audio signal received by the Bluetooth module to the bone conduction vibrator; the bone conduction vibrator is configured to vibrate the ossicles according to the processed audio signal to transmit sounds; the power amplifier is arranged in the first receiving chamber; the bone conduction vibrator is arranged in the second receiving chamber.

In one of the possible implementations, the earphone body further includes a charging and discharging module and a battery; the charging and discharging module is electrically connected to the battery for controlling charging and discharging of the battery; the battery is configured to supply power to the TWS bone conduction earphone; the charging and discharging module is arranged in the first receiving chamber; the battery is arranged in the second receiving chamber.

In one of the possible implementations, two sides of the first housing portion are formed with a first accommodating groove and a second accommodating groove, respectively. The first accommodating groove communicates with the second accommodating groove. The first accommodating groove is configured to accommodate the bone conduction vibrator. The second accommodating groove is configured to accommodate the battery.

In one of the possible implementations, a gap between the bone conduction vibrator and the battery is 0.2 mm to 3 mm.

In one of the possible implementations, the TWS bone conduction earphone further comprises an earplug made of silicone. The earplug is arranged on one side of the earphone housing and covers the bone conduction vibrator. One side of the earplug, facing the ear, is provided with a positioning protrusion. The positioning protrusion protrudes obliquely outward from an outer peripheral side of the earplug.

In one of the possible implementations, a part of the bone conduction vibrator is arranged in the first accommodating groove, and another part of the bone conduction vibrator is exposed from the first accommodating groove. The earplug covers the another part of the bone conduction vibrator exposed from the first accommodating groove.

The embodiment of the present invention provides a TWS bone conduction earphone, comprising an earphone housing and an earphone body. The earphone housing is configured to accommodate the earphone body. The earphone body includes a storage module, a Bluetooth module and a bone conduction module. The storage module is configured to store a Bluetooth address corresponding to a Bluetooth device to be connected and paired. The Bluetooth module is configured to establish a communication with the corresponding Bluetooth device according to the Bluetooth address to obtain an audio signal from the Bluetooth device. The bone conduction module vibrates according to the audio signal for transmitting sounds through ossicles. Using Bluetooth technology, bone conduction wireless answering is realized, without the restriction of the earphone cable. It is more convenient to use, and the sound transmission is realized through bone conduction without damaging hearing.

