Patent Application
20210160607
The present invention relates to a headphone charging case. In particular, the present invention relates to an embedded earphone charging case.
Wireless Bluetooth headsets include Bluetooth headsets and infrared headsets. Bluetooth headsets use Bluetooth technology on hands-free headsets, allowing users to avoid the annoying wires and freely move about. Since the advent of the Bluetooth headset, it has been a popular product to increase the efficiency of mobile business people.
Bluetooth was originally developed by Ericsson, Nokia, IBM, Intel, Toshiba, and CEIEC. It is a communication interface for short-distance wireless transmission. The basic communication distance is about 10 meters, the transmission rate is about 721 kbps, and it operates at a frequency of 2.4 GHz. It supports one-to-many data transmission and voice communication. Since Bluetooth is not designed to carry large traffic loads, it is not a replacement for LAN or WAN.
In the existing TWS earphones, the earphone charging case only has a simple charging function, resulting in a single function, which cannot meet the increasingly wide use requirements of users.
A headphone charging case comprising an earphone case, wherein an earphone holder is affixed inside the earphone case, and a side of the earphone holder is connected with a WIFI antenna and a RF (radio frequency) antenna. An earphone is placed in the earphone holder. The inside of the earphone holder is provided with a placement channel that cooperates with the earphone. A lithium battery is disposed inside the earphone, and the bottom of the earphone is provided with a charging conductor electrically connected to the lithium battery.
A motherboard and a rechargeable battery are affixed to the outside of the earphone holder, and a charging board is affixed on the motherboard. The charging board is electrically connected with a pogopin charging contact, and a Type-C charging port is affixed on the bottom of the motherboard. The top of the earphone case is hinged to the upper cover through a hinge bracket.
A controller is disposed inside the earphone case, and the controller is connected to a baseband processor for generating a baseband signal. The baseband processor is connected to a radio frequency processor for transmitting the baseband signal. The controller, the Bluetooth module, and the WIFI module are electrically connected.
An MCU is disposed inside the earphone. The MCU is connected to a Bluetooth module, and an audio power amplifier module for adjusting audio power. The audio power amplifier module is connected to a speaker for outputting audio.
A latching structure is disposed between the earphone case and the upper cover. The latching structure includes a recess disposed at a top of a front side wall of the earphone case. The bottom of the recess is provided with a slot. An elastic plate is fixed to the bottom of the front end of the upper cover. The bottom of the elastic plate is provided with a block for engaging with the slot in the bottom of the recess. A side of the elastic plate is provided with a stopper.
The earphone is placed in a placement channel inside the earphone holder with the charging conductor at the bottom of the earphone in contact with the pogopin charging contact.
The rechargeable battery is electrically connected to the charging board and the Type-C charging port.
The radio frequency processor is connected to the radio frequency antenna. The WIFI module is connected to the WIFI antenna. In the preferred embodiment, the WIFI module uses KB3077, the Bluetooth module uses a BT-210 wireless Bluetooth module. In the preferred embodiment, the baseband processor uses Balong 5000, the RF processor uses RFM119 radio frequency transmitting module, the audio power amplifier module uses TDA2030, and the controller and the MCU uses LPC5500.
The embedded earphone charging case with wireless communication function provided by the present invention realizes communication between the earphone and the earphone case through the Bluetooth module. It integrates Bluetooth communication, WIFI communication, baseband communication, and headset charging and other functions in a small space inside the earphone case. It can access the cloud server through baseband communication, realize the control of the smart home through interaction with the Internet. In addition, with the microphone provided in the earphone and an eSIM in the earphone case, the present invention may independently provide telephone communication. It effectively expands the useful functions of the earphone and the headphone charging case.
The following description and figures are meant to be illustrative only and not limiting. Other embodiments of this invention will be apparent to those of ordinary skill in the art in view of this description.
The embedded earphone charging case with wireless communication function, as shown in
A motherboard 3 and a rechargeable battery 5 are affixed to the outside of the earphone holder 2, and a charging board 15 is affixed on the main board 3. A pogopin charging contact 16 is electrically connected to the charging board 15, and a Type-C charging port 11 is affixed on the bottom of the main board 3. The top of the earphone case 1 is hinged to the upper cover 10 through the hinge bracket 9.
A controller is disposed inside the earphone case 1, and the controller is connected with a baseband processor for generating a baseband signal. The baseband processor is connected with a radio frequency processor for transmitting the baseband signal. The controller, the Bluetooth module, and the WIFI module are electrically connected.
An MCU is disposed inside the earphone 8. The MCU is connected to the Bluetooth module and an audio power amplifier module for adjusting audio power. The audio power amplifier module is connected with a speaker for outputting audio.
A latching structure is disposed between the earphone case 1 and the upper cover 10. The latching structure includes a recess 18 disposed at a top of a front side wall of the earphone case 1. The bottom of the recess 18 is provided with a slot 19. An elastic plate 20 is fixed to the bottom of the front end of the upper cover 10. The bottom of the elastic plate 20 is provided with a block 21 for engaging with the slot 19 in the bottom of the recess 18. A side of the elastic plate 20 is provided with a stopper 22.
The earphone 8 is placed in the placement channel inside the earphone holder 2 where the charging conductor at the bottom of the earphone 8 is in contact with the pogopin charging contact 16.
The rechargeable battery 5 is electrically connected to the charging board 15 and the Type-C charging port 11.
The RF processor is connected to the RF antenna 13. The WIFI module is connected to the WIFI antenna 12. In the preferred embodiment, the WIFI module uses KB3077, the Bluetooth module uses the BT-210 wireless Bluetooth module, the baseband processor uses the Balong 5000, the RF processor uses the RFM119 radio frequency transmission module, the audio amplifier module uses TDA2030, and the controller and MCU uses LPC5500.
The Bluetooth module in the earphone case 1 and the Bluetooth module in the earphone 8 are both BT-210 wireless Bluetooth modules, and the communication between the earphone 8 and the earphone case 1 is realized by means of the Bluetooth module. Bluetooth communication, WIFI communication, baseband communication, headset charging, and other functions are all integrated into a small space inside the earphone case 1. Cloud server access is available through baseband communication. The present invention, through interaction with the Internet, provides control of the smart home.
In addition, a microphone is provided on the earphone 8 for detecting voice and noise for noise suppressing. eSIM is provided in the earphone case 1 for telephone communication in cooperation with the earphone 8.
The earphone 8 is placed in the placement channel inside the earphone holder 2. The charging conductor at the bottom of the earphone 8 will be in contact with the pogopin charging contact 16 and the lithium battery in the earphone 8 is charged by the rechargeable battery 5.
The latching structure between the earphone case 1 and the upper cover 10 facilitates the fixing between the earphone case 1 and the upper cover 10. When the upper cover 10 needs to be opened, the stopper 22 is pulled outwards, so that the elastic plate 20 urges the block 21 to move out of the slot 19, so that the upper cover 10 can be opened.
Although the invention has been described in terms of particular embodiments and applications, one of ordinary skill in the art, in light of this teaching, can generate additional embodiments and modifications without departing from the spirit of or exceeding the scope of the claimed invention. Accordingly, it is to be understood that the drawings and descriptions herein are proffered by way of example to facilitate comprehension of the invention and should not be construed to limit the scope thereof.
