Awarded Shenzhen Innovation Project Two

In the 2023 Shenzhen Enterprise Innovation Competition, three projects from YOBYBO were recognized as the 22nd Shenzhen Enterprise Innovation Record.

About the previous article describing YOBYBO’s first project to obtain Shenzhen’s innovation record.Click here to view

About project 2

Conventional TWS earphones have an obvious yet often overlooked flaw in the design of the charging box hinge: part of the hinge or rotating shaft must remain exposed outside the charging box, creating an aesthetic inconsistency in the overall appearance. The invisible hinge technology for TWS earphone charging boxes redefines the rotating components of the compact charging box by concealing the hinge axis entirely inside the box. When the lid is closed, no rotating parts or structures are visible to the user. This technology not only resolves the long-standing aesthetic defects of the charging box but also prevents the dust and debris accumulation commonly associated with traditional opening and closing mechanisms. A total of five patents have been granted for this technology, including one US invention patent, one Chinese utility model patent, two design patents, and one PCT patent, all obtained during the project’s development.

What did we do?

As a storage and charging tool for wireless earphones, the TWS earphone charging box has become an integral part of the TWS earphones. Before 2020, tvbhe opening and closing cover mechanisms of most charging boxes on the market were exposed, which not only affected the appearance but also easily accumulated dust. This was actually an appearance flaw, but before the emergence of built-in hinges, the industry There is no better solution. The built-in rotating shaft technology of this project completely solves this problem, and the cost is 1/2-1/4 of the general rotating shaft. The built-in hinge is to TWS headsets, just like the full screen is to smartphones. The more competition becomes fierce, the stronger the premium it brings.

Moreover, through this project, we successfully applied for one utility model patent, one invention patent, two appearance patents, and one PCT patent.

The project’s market prospects and industrialization status

Built-in hinges will be a new trend in TWS earphone charging box hinge technology. More and more TWS earphone manufacturers have begun to try to use this technology. It is expected that among TWS earphones with open and close covers, their market share will eventually be close to 15 %-20%. At present, this project has successfully achieved mass production and has been successfully applied in our company's ZIP20, SUGAR20, CARD21 and other products. The achieved product sales are approximately 20 million yuan.