2results about How to "Constant power" patented technology

The application belongs to the technical field of wireless charging and specifically discloses a wireless charging upgrading system based on wired charging piles and a working method thereof, which comprises a wired charging pile, a wireless charging upgrading control module, a wired charging control module, a wireless charging controller, a wireless charging transmitting plate, a wireless charging receiving plate, a receiving controller, a receiving end communication module and a BMS battery manager. The application can be upgraded and modified at low cost on the basis of existing wired charging piles to obtain an automatic charging system with wireless charging function, so as to fully utilize existing charging pile resources, maximize investment benefits, save resources, and relatively less upgrade the existing wired charging pile, which is relatively simple in construction and modification, can be adapted to various power wired charging piles, and keeps the power and efficiency of the original charging pile unchanged.

This invention relates to the field of motor technology and discloses a high-power-density permanent magnet motor for unmanned aerial vehicles (UAVs). The motor includes a stator with a winding section and a frequency conversion section. The winding section is arranged in a ring array around the center of the stator, allowing for different coil combinations on a single winding. The winding section includes slots A, B, and C. Slot A is located on the inner wall of the stator, while slots B and C are located on the stator itself. The inner wall of the stator also has inlet holes A, B, and C. Inlet holes A and B communicate with slot A, and inlet holes B and B communicate with slot B. The motor employs a wide-range speed control to adapt to UAV operating conditions, featuring a six-speed adjustment function. The rated speed ranges from 8 r / min (8 Hz) to 48 r / min (48 Hz), and the speed ratio can reach 1:8 during weak field operation. This allows for precise matching of the power requirements of different stages of UAV operation, such as takeoff, cruise, and high-speed flight, achieving full operating condition coverage without motor replacement.