Other

Shanghai Helang Electronics Co., Ltd.

Wenyan Jiang

Yu Tian

A brushless DC motor () and a radiating device thereof are provided. The brushless DC motor () includes a bracket (), a stator () mounted on the bracket () and a rotor () rotating around the stator (), the bracket () has an inner chamber (), the rotor () has an opening () facing the inner chamber (), wherein the radiating device includes a first radiator () which is provided in the inner chamber () of the bracket () and is thermal coupled with the stator () through the bracket () so as to send the heat out of the stator (), and a turbine () which is provided within the opening () of the rotor () and is facing a first end () of the first radiator () so as to discharge the heat sent from the first radiator () out of the motor () while the turbine () is rotating. The radiating device is simple in structure, and solves the problem of heat discharging of the large power brushless DC motor.

Brushless DC motor and a radiator thereof

A control servo includes a supporting frame, a motor, a driving shaft and a control slider. The supporting frame comprises a mount and a slider housing, wherein the motor is supported in the mount of the supporting frame. A driving gear is provided at an output end of the motor. The driving shaft is positioned longitudinally through the slider housing. A driven gear is provided at one end of the driving shaft to mesh with the driving gear. The driving shaft penetrates through the control slider while an upper portion of the control slider extends out of the slider housing. An electric brush is provided underneath the control slider. The control servo eliminates the use a potentiometer as installed in a traditional servo and the reduction gearbox so that the structure is simpler and lighter; thus it plays an important part in the miniaturisation of model aircraft.

Control servo

A method is disclosed for checking model planes entering into a dive, as well as an anti-dive method and apparatus. The method of checking planes includes installation of a first optical sensor in the upper part of the plane, with installation angle upwardly intersecting with the front of the plane at &#x3b1; degrees, that checks light intensity and outputs a first checked optical signal; installation of a second optical sensor in the bottom part of the plane, with its installation angle downwardly intersecting with the back of the plane at &#x3b2; degrees, which checks light intensity and outputs a second checked optical signal. A comparison is made between the first and second checked optical signals, and when the difference in light intensity is smaller than a threshold, a warning signal is sent out indicating that the plane has entered into a dive.

Method and device for checking plane's entry into a dive and anti-dive devices for planes using the same

An ultrasonic remote aeroplane for playing air-battle game includes a wing, a cockpit, a propeller, a tail pole, a fin, a rudder, a main remote circuit for receiving the propeller rotation controlling signal and rudder motion controlling signal carried high frequency carrier transmitted from a remote transmitter, and a driving system thereof. The remote aeroplane further includes an air-battle box including at least an ultrasonic transmitting tube, an ultrasonic receiving sensor, an attachment structure for fixing to the aeroplane, and a control circuit corresponding to them. The remote transmitter further transmits a high frequency carrier carrying a signal F for instructing the ultrasonic transmitting tube to transmit ultrasonic waves. The main remote circuit further includes a circuit for receiving the high frequency carrier carrying the signal F and separating out the signal F

Ultrasonic remote aeroplane for air-battle game

A remote electro-aeroplane is mainly characterized in that the turn rudder surface is jointed to the tail stabilizer by a plastic film on their upper faces with a separation of the elastic foaming material from the plastic film on their lower faces at their joint, wherein two flexible cables or nylon wires are connected to the left and the right racks arranged on the left and the right turn rudder surfaces with their one end respectively and to the servo means within the remote receiving device with their another end, and the restoration mechanisms are provided beneath the left and the right turn rudder surfaces respectively. Based on this structure, the aeroplane has the advantages of easy control with smooth fly in case of making a turn, and is particularly suitable for the primary player.

Growing community of inventors

Shanghai, China

Wenyan Jiang