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Braking circuit of electromagnetic brake

A technology of electromagnetic brakes and braking circuits, which is applied in motor generator control, motor/generator/inverter limiters, electrical components, etc., and can solve problems such as abnormal operation or abnormal operation of circuit protection devices.

Inactive Publication Date: 2015-02-25
CHANGZHOU FEIYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Usually, the electromagnetic brake that comes out of the factory directly connects the brake coil in parallel to the motor power supply circuit. This design has a disadvantage, that is, there is a stalled operation when the motor is just powered on, which will cause the circuit protection device to operate or operate abnormally.

Method used

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  • Braking circuit of electromagnetic brake

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] see figure 1 , The electromagnetic brake braking circuit includes a stop button SB1, a start button SB2, a first AC contactor, a second AC contactor, an intermediate relay and an electromagnetic brake. One end of the stop button SB1 is connected to the positive pole of the power supply, and the other end of the stop button SB1 is connected to the negative pole of the power supply through the start button and the coil KM2 of the second AC contactor in turn, and the third normally open contact KM23 of the second AC contactor is connected in parallel to the start button At both ends of SB2, the coil KA of the intermediate relay is connected in parallel with the two ends of the coil KM2 of the second AC contactor. One end of the normally open contact KA1 of the intermediate relay is connected to the positive pole of the power supply, the ot...

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Abstract

The invention discloses a braking circuit of an electromagnetic brake. One end of a stop button is connected with the positive electrode of a power supply, the other end of the stop button is connected with the negative electrode of the power supply through a start button and a coil of a second alternating current contactor in sequence, a third normally open contact of the second alternating current contactor is connected to the two ends of the start button in parallel, and a coil of an intermediate relay is connected to the two ends of the coil of the second alternating current contactor in parallel; one end of a normally open contact of the intermediate relay is connected with the positive electrode of the power supply, the other end of the normally open contact of the intermediate relay is connected with the negative electrode of the power supply through a coil of a first alternating current contactor, and a normally open contact of the first alternating current contactor is connected between the power supply and a motor; one end of a first normally open contact of the second alternating current contactor is connected with the power supply, and the other end of the first normally open contact of the second alternating current contactor is connected with a coil of the electromagnetic brake. According to the braking circuit, after a brake shoe of the brake is released, the motor can run again, so that safe start is guaranteed.

Description

technical field [0001] The invention relates to an electromagnetic brake braking circuit. Background technique [0002] Usually, the electromagnetic brake that comes out of the factory directly connects the brake coil in parallel to the motor power supply circuit. This design has a disadvantage, that is, there is a stalled operation when the motor is just powered on, which will cause the circuit protection device to operate or operate abnormally. Contents of the invention [0003] In view of the above technical problems, the present invention provides an electromagnetic brake braking circuit. The invention can make the motor run again after the brake shoe of the brake is released, so as to ensure safe starting. [0004] Technical scheme of the present invention is as follows: [0005] Electromagnetic brake braking circuit, including stop button, start button, first AC contactor, second AC contactor, intermediate relay and electromagnetic brake; [0006] One end of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P3/18
Inventor 吴玉飞
Owner CHANGZHOU FEIYU CHEM
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