Electromagnetic press-type automatic putting and exiting press plate

Abstract

The invention discloses an electromagnetic press-type automatic putting and exiting press plate. The electromagnetic press-type automatic putting and exiting press plate comprises a press plate mechanism, a press action mechanism and an electromagnetic press mechanism, wherein the press plate mechanism comprises a fixed plate and a movable plate which are matched, wherein at least one pair of contact electrodes are arranged at a contact surface in a folding state, the press action mechanism comprises a sliding claw and a push rod, the sliding claw is arranged in a sleeve, the movable plate isarranged at a tail end of the sliding claw, the electromagnetic press mechanism is connected with a tail end of the push rod, the sliding claw and the push rod are linked by an alternative switch locking structure, the electromagnetic press mechanism drives the push rod to stretch and contract, the movable plate is linked to rotate, stretch and contract with the sliding claw, and a breaking and closing state of a contact electrode is controlled. The electromagnetic press-type automatic putting and exiting press plate is simple in structure, low in fabrication and maintenance cost and high in stability and is convenient to operate, extra manual intervention is not needed during implementation, the operation risk is reduced, the working efficiency is improved, the manual cost is reduced, thesystem safety is effectively improved, and the electromagnetic press-type automatic putting and exiting press plate has high practicability and wide applicability.

Description

technical field [0001] The invention relates to a throwing and withdrawing press plate, in particular to an electromagnetic pressing type automatic throwing and withdrawing press plate, which belongs to the technical field of electric power. Background technique [0002] The relay protection system is an indispensable and important part of the power system. The reliability and stability of the relay protection system is directly related to the safe operation of the power system. The electric pressure plate is the bridge and link for the relay protection device to connect with the external wiring, and it is also a means of human-computer interaction. Through the operation of switching on and off the pressure plate, part of the functions of the protection device can be realized, and the result of the protection action can also be determined. At the same time, the pressure plate is an obvious disconnection point in the protection system. Operators can intuitively observe whethe...

AI Technical Summary

Problems solved by technology

[0004] However, for substations using outdoor cabinets, the environment where the relay protection devices are located poses a greater threat to the personal safety of operators: on the one hand, outdoor cabinets are usually installed next to high-voltage devices, and the environment itself has risks; on the other hand, outdoor cabinets It is charged during operation, especially in bad weather conditions such as rainy days, the operation of opening the cabinet door will increase the chance of danger for the operator

[0005] At this stage, some researchers have designed an electric platen that can realize automatic switching on and off. However, the structure of the above-mentioned electric platen is relatively complicated, and all of them are driven by motors, requiring an additional motor controller.

A relay protection device usually has multiple pressure plates, and configuring a motor and driver for each pressure plate seriously increases the cost, and the control system is more complicated and less stable

At the same time, the above-mentioned electric pressure plate converts the rotation of the motor into the translational motion of the pressure plate through the mechanical mechanism. When the motor system fails, due to the limitation of the mechanical structure, the electric pressure plate cannot be manually switched on and off.

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