While my son was at school, driven by curiosity, I secretly disassembled his remote-controlled tank to see its internal structure for future modifications. The toy’s existing functions include remote control for moving forward, backward, turning in place, side movement, and firing bullets.
I directly removed the wheels, and the wheel structure is indeed clever.
Reverse effect:
All four wheels have been removed.
Opening the shell, the toy tank is equipped with multiple motors, each used to drive the movement of the tracks and the rotation of the turret. These motors are compact yet powerful, providing sufficient torque to drive the tank across various terrains.
However, the wiring is indeed best described as chaotic.
The circuit board is quite simple, a single-layer board, with the four motors on the wheels controlled independently. I suspect the smallest IC is a microcontroller used to control the motors, receive RF signals from the remote control, and manage the speaker, as well as support a pre-programmed routine for automatic movement, which should also be implemented in the MCU logic.
Upon closer inspection, the chip model is mostly erased and unclear, likely for confidentiality reasons.
The turret motor is responsible for the rotation of the turret, allowing the tank to flexibly adjust its shooting direction. The turret motor also uses a brushed DC motor, driven by gears to rotate the turret. The motor is mounted at the base of the turret, fixed together with it.
In summary: Through the disassembly and analysis of this toy tank, I gained a deeper understanding of its internal structure and working principles. From the complex wiring of the circuit board to the power transmission of the motors, and the design of the bullet firing mechanism, each part reflects the designer’s pursuit of toy performance and fun. This disassembly process has given me a more intuitive and in-depth understanding of the design and manufacturing of toy tanks, and has increased my appreciation for the technology and craftsmanship behind the toy. This toy tank, with its clever structure and rich features, brings endless fun and surprises to users, while also igniting my strong interest in mechanical design and electronic technology.
END
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