Platform screen door control apparatus

Abstract

The invention relates to a platform screen door control apparatus, which comprises a platform screen door, a control device, and a phase sequence and open-phase protection device, wherein the platform screen door is connected to the control device, the phase sequence and open-phase protection device can protect the control device, the control device comprises a gasbag and an electromagnetic valve, the middle of the electromagnetic valve is provided with a platform screen door gasbag, the platform screen door gasbag performs gas inflation and gas deflation of the gasbag through the on-off of the electromagnetic valve, a time delaying relay is arranged on the right side of the electromagnetic valve, the phase sequence and open-phase protection device comprises a phase sequence relay protection device, the phase sequence relay protection device controls the relay of a three-phase motor, and the relay of the three-phase motor controls the three-phase motor by closing a switch. According to the present invention, the electromagnetic valve controls the gas inflation of the gasbag, such that the gas inflation effect on the platform screen door is good, and the closing state of the platform screen door can be good; and the electromagnetic valve can accurately control the gas inlet amount, and the time delaying relay can control the gas discharge time of the platform screen door gasbag, such that the more time consumption is not required when the platform screen door is closed.

Description

technical field [0001] The invention relates to a control device, in particular to a screen door control device. Background technique [0002] The shielding room for high voltage test is widely used in the field of high voltage test. In the high-voltage non-partial discharge test, the lower the background interference required, the better, and some even clearly stipulate the value in the standard. However, due to the rapid development of society, various electrical and electronic products emerge in endlessly, various electromagnetic interference, radio interference, etc. More and more, the problem of background interference is getting more and more serious. In order to reduce the background caused by external interference exceeding the value stipulated in the national standard, each production and test manufacturer uses a shielding room for high-voltage testing to achieve the purpose. The shielding room for high-voltage testing has a movable door, and many of the test produ...

AI Technical Summary

Problems solved by technology

In the high-voltage non-partial discharge test, the lower the background interference required, the better, and some even clearly stipulate the value in the standard. However, due to the rapid development of society, various electrical and electronic products emerge in endlessly, various electromagnetic interference, radio interference, etc. More and more, the problem of background interference is getting more and more serious

In order to reduce the background caused by external interference exceeding the value stipulated in the national standard, each production and test manufacturer uses a shielding room for high-voltage testing to achieve the purpose. The shielding room for high-voltage testing has a movable door, and many of the test products need to be shielded. Shielding doors are needed to shield the signal in the room, but many shielding doors have poor shielding effect and cannot be opened and closed in a humanized way. The testers need to observe the closed state by themselves, which increases the workload of the shielding test and cannot shorten the test time. improved work efficiency

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