Charging and communication collinear system and earphone product

Abstract

The invention discloses a charging and communication collinear system and an earphone product. The charging and communication collinear system comprises a charging device and an electric product. Thecharging device comprises a main charging interface, a power output circuit and a main controller. The power output circuit is connected with the positive electrode of the main charging interface through a first switch. The main controller is connected with the positive electrode of the main charging interface through a second switch. The electric product comprises a slave charging interface, a charging circuit and a slave controller. The charging circuit is connected with the positive electrode of the slave charging interface through a third switch, and is used for receiving a charging powersource outputted by the charging device and charging a battery in the electric product. The slave controller is connected with the positive electrode of the slave charging interface through a fourth switch. According to the invention, the dual functions of transmitting a charging current and transmitting a communication signal on a single connection line are achieved. The technology is applied tothe earphone product. In this way, the charging function and the communication function of an earphone can be realized by a charging box. Meanwhile, the number of contacts between the earphone and thecharging box can be reduced.

Description

technical field [0001] The invention belongs to the technical field of direct current charging, and in particular relates to a design of a co-linear circuit for a charging line and a communication line between a charging device and an electric product, and an earphone product based on the design of the co-linear circuit. Background technique [0002] With the rapid development of earphone technology, binaural wireless earphones and neckline earphones are becoming more and more popular, and their volume is getting smaller and smaller. Due to the limitation of the volume of the earphone itself, the traditional charging interface (such as the USB interface, etc.) cannot be installed and used on the binaural wireless earphone and the neckline earphone due to its large size, so these earphones usually use contact charging at present. Interface, and use it with a special adapter or charging box. [0003] When using an adapter or a charging box to charge a binaural wireless headse...

AI Technical Summary

Problems solved by technology

However, setting the charging interface and the communication interface on the earphone and the adapter or the charging box at the same time will lead to an increase in the number of contacts, and the design cost and reliability risk of the earphone will multiply with the increase in the number of contacts. Therefore, how to It is of great significance to design a single-contact interface that can both charge and communicate on earphone products

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