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Control circuit of elevator control system

A control circuit and elevator braking technology, which is applied in elevators, transportation and packaging, etc., can solve problems such as contact adhesion of the brake circuit that cannot be solved

Active Publication Date: 2011-05-18
SHIJIAZHUANG WULON BRAKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the control circuit structure of the existing elevator brake system cannot solve the problem of contact adhesion in the brake circuit

Method used

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  • Control circuit of elevator control system
  • Control circuit of elevator control system

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Embodiment Construction

[0009] Such as figure 1 As shown, the present invention is connected in series by two input terminals 1 and 2 of the door lock relay DJ, the brake contactor ZJ, the current limiting resistor R1, and the isolation control switch CK to form the brake circuit; the working voltage of the brake circuit Applied to both ends of A and B, the voltage can be AC ​​110 / 220V or DC 110 / 220V. The two output terminals 3 and 4 of the isolation control switch CK are connected to the signal input terminal of the brake controller CT, and at the same time pass through the current limiting resistor R 2 Connect to 15V DC power supply, the other end is ground terminal, ground wire G. The brake controller CT can adopt a conventional control circuit structure, and its ground terminal shares the ground line G with the ground terminal of the isolation control switch CK. The brake coil L is connected in series with the running contactor CJ to the output end of the brake controller CT.

[0010] The brak...

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PUM

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Abstract

The invention relates to a control circuit of an elevator control system. A door lock relay DJ, a band-type brake contactor ZJ, a current-limiting resistance R1 and pins 1 and 2 of an isolation control switch CK are connected in series into a band-type brake loop; wherein the output terminals 3 and 4 of the isolation control switch are connected with the input terminal of a brake controller CT, wherein the pin 4 is also connected with a direct current power supply DC by a resistance R2, the pin 3 of the isolation control switch CK and the ground terminal of the brake controller CT are commonly connected with a ground wire G, and the output terminal of the brake controller CT is connected with a series loop of a brake coil L and an operating contactor CJ. The invention can reduce frequent contact adhesion fault of the band-type brake loop of the elevator control system, prevents serious safety accidents of slip and running up or down of the elevator, and improves reliability and safety of the operation of the elevator.

Description

technical field [0001] The invention relates to a control circuit of an electromagnet, in particular to a control circuit of an elevator brake system. Background technique [0002] About 80% of elevator safety accidents are brake failures. A major cause of brake failure is contact sticking in the brake circuit of the elevator braking system. When the contacts of the diverter switch stick together, the brake cannot be applied, and the elevator braking system fails, leading to major safety accidents such as the elevator slipping, rushing to the top or squatting at the bottom. The main reason for the adhesion of the contacts of the diverter switch is that the brake coil is connected in series in the brake circuit, which causes a large excitation current flowing through the brake coil to flow through the contacts of the diverter switch at the same time, making the contacts Arcing occurs during the opening and closing process and adhesion occurs. Therefore, the control circuit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02B66B1/32
Inventor 芮振璞
Owner SHIJIAZHUANG WULON BRAKE
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