Metal foreign matter removal device of track traffic wireless power supply system

Abstract

The invention discloses a metal foreign matter removal device of a track traffic wireless power supply system. According to the metal foreign matter removal device, a vertical sliding rail (2) is arranged on a car body (1) of a small rail car, and the lower end of a sliding block (2A) of the sliding rail (2) penetrates through the car body (1) to be connected with an electromagnet (5); a motor (3) is arranged on the car body (1), and a gear (4) on an output shaft of the motor (3) is engaged with a gear groove of the sliding block (2A); the electromagnet (5) and the motor (3) are both electrically connected with a control system of the small rail car. The device is simple in structure and convenient to operate, iron, cobalt, nickel and other magnetic metal foreign matter in a rail or a primary coil area can be effectively removed, and therefore stable, efficient and safe operating of the track traffic wireless power supply system is ensured.

Description

technical field [0001] The invention relates to a metal foreign matter removal device for a rail transit wireless power supply system. Background technique [0002] The wireless power supply system (wireless power supply system) has been applied to the power supply of high-power equipment such as rail transit trains. Compared with the traditional direct contact power supply, there are no problems such as contact sparks, leakage, and influence by rain, snow and dust during the working process of the wireless power supply system, which effectively improves the safety and reliability of power supply. [0003] The structure and working process of the rail transit wireless power supply system are as follows: the power-frequency alternating current near the rails is rectified into direct current through a rectifier, and the direct current is converted into high-frequency alternating current under the action of a high-frequency inverter; the high-frequency alternating current is la...

AI Technical Summary

Problems solved by technology

The wireless power supply system will generate a high-frequency magnetic field during operation. When there are metal foreign objects in the rail and primary coil area, the high-frequency magnetic field will generate eddy currents in the metal foreign objects, causing the metal foreign objects to heat up, thereby reducing the transmission efficiency of the system. , a serious situation will cause a fire, endangering the safety of the entire system

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