The popularization of Bluetooth earbud fastens the development of a series of supporting industries, especially Bluetooth earbud charging case. Being a fitting of Bluetooth earbud, earbud charging case is essential, for it has become a mini portable source of Bluetooth earbud. Many manufacturers of power supply and chip begin to research, develop and adjust their products on the basis of the original design. But some problems like aging may occur to the charging case, ZHAOWEI develops lifting systems for charging case of Bluetooth earbud to solve these problems.
Main Problems Of Charging Case
Earbud charging interfaces in market are mainly connected with connector sockets, which are easy to be aging and worn-out. The connector is likely to be destroyed because the strength is hard to control when the earbud is connecting to the connector socket.
Traditional Bluetooth Earbud Manual Mode Bluetooth Earbud Intelligent Lifting Mode
To pull earbud out of the charging case easily, or not destroy the connector socket of the charging case, uniting with Bluetooth earbud manufacturers, ZHAOWEI researches and develops lifting systems for Bluetooth earbud charging systems, extending the service life of charging case.
ZHAOWEI Drive Solutions for Bluetooth Earbud Charging Case
The design of Bluetooth earbud charging case is exquisite, and charging and discharging circuit, protection circuit, and battery are included in the internal structure, which requires the structure of planetary gear motor to be small and have high torque to run micro drive systems in limited space. ZHAOWEI designs solutions of 3.4 mm planetary gear motor plus lead screw, achieving automatic rise and down of connector socket for Bluetooth earbud charging case. And ZHAOWEI realizes smooth rise of Bluetooth earbud in limited space by adopting designs of 3.4 mm micro gear, long screw, metal insert molding and end bearing.
The Standard Structure Of 3.4 mm Gear Motor
Outer diameter : 3.4 mm (can be customized)
Voltage range: 3.7-5.0 V
Direction of rotation：CC & CCW
Load torque：400 gf.cm
Noise：50 dB (10 cm distance)
ZHAOWEI lifting systems for Bluetooth earbud charging case adopts 5 V low voltage DC as power source and 5 V permanent magnet brushless DC motor as driving power supply normally. Supplied with 5 V distant current, the motor spirals and rotates, carrying out first-stage deceleration with worm and turbine of stepper motor through 3.4 mm planetary gear motor. A nut is fixed on inner tube, achieving the capsule rising by pushing a push rod, which is similar to tightening screws. Switching negative and positive poles of 5 V direct current, motor reverses, making the module down, achieving the intelligent descent of capsule. The characteristics of ZHAOWEI lifting gear transmission structure are stability, low mechanical loss, low noise and smooth working.
ZHAOWEI energizes many Bluetooth earbud manufacturers in micro drive systems, meeting the requirements of customers and releasing more commercial value, to bring better smartwear experience to more customers. We can provide personalized design and R&D customized service, according to different needs of customers to drive systems.
Lifting Systems for Bluetooth Earbud Charging Case
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