Energy-saving type continuous duty locomotive door control electromagnet

Abstract

The invention discloses an energy-saving type continuous duty locomotive door control electromagnet which is low in energy consumption and safe and reliable to use. The electromagnet comprises a shell, a large-power attract coil, an auxiliary maintaining coil, a mandrel, a poking piece and a microswitch. The large-power coil is connected with the auxiliary maintaining coil in series and connected with the two ends of a power source. The mandrel is arranged in the large-power attract coil and the auxiliary maintaining coil which are connected in series. The mandrel is half exposed, and the exposed end of the mandrel is fixedly provided with the poking piece. The microswitch is arranged at the position, corresponding to the poking piece, of the shell. A common pin of the microswitch is connected to the joint of the large-power coil and the auxiliary maintaining coil. A normally-close end pin of the microswitch is connected with the auxiliary maintaining coil in parallel and then connected with one end of the power source. An open-end pin of the microswitch is empty. According to the electromagnet, through reasonable combination of the two coils and the microswitch, the energy-saving purpose is achieved, product reliability is improved, and safe and reliable operation of a locomotive door control system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electromagnets, and more specifically relates to a door control electromagnet of a continuous working locomotive. Background technique [0002] With the development of rail transit, traffic safety has been paid more and more attention. In particular, the security requirements of the locomotive door control system are getting higher and higher. In order to meet the needs of safety, the electromagnet structure in the locomotive door control system is required to shift from intermittent duty to continuous duty. In order to meet the requirements of the continuous working system, the electromagnet structure is changed from a single coil to a double coil. Generally, when the double coil is working, the coil switching adopts the working method of disconnecting first and then connecting. When the coil is switched, the electromagnet will lose power momentarily, and the electromagnet will malfunction or output an...

AI Technical Summary

Problems solved by technology

Generally, when the double coil is working, the coil switching adopts the working method of disconnecting first and then connecting. When the coil is switched, the electromagnet will lose power momentarily, and the electromagnet will malfunction or output an error signal when the power is lost. The operation causes interference, and even causes the system to alarm, affecting the normal operation of the system

At the same time, due to the high power output required to ensure the initial pull-in of the electromagnet, the power of the electromagnet is high and the energy consumption is high

In addition, the transmission part (spindle) in the electromagnet is semi-exposed, and the ordinary oil lubrication method will inevitably cause the lubricating oil to evaporate completely after long-term use, and the lubricating oil will stick to dust and impurities, thus causing a certain degree of attraction to the electromagnet. Influence, but also increase the use and maintenance costs

Images