Improved brake 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 EAST NOAH PRINTING & DYEING
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  • 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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  • Improved brake circuit of electromagnetic brake

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] see figure 1 , An improved electromagnetic brake braking circuit, including a stop button SB1, a start button SB2, a first AC contactor, a second AC contactor with a power delay head, 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 SB2 and the coil KM2 of the second AC contactor in turn, and the first normally open contact KM11 of the first AC contactor is connected in parallel to the starter The two ends of the button SB2, the branch of the second AC contactor's power-on delay normally open contact KM21 connected in series with the coil KM1 of the first AC contactor, are connected in parallel to the two ends of the coil KM2 of the second AC contactor. ...

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Abstract

The invention discloses an improved brake circuit of an electromagnetic brake. One end of a stop button is connected with the positive electrode of a power source, and the other end of the stop button is connected with the negative electrode of the power source in sequence through a start button and a coil of a second alternating current contactor. A first normally open contact of a first alternating current contactor is connected with the two ends of the start button in parallel. A branch formed by connecting a power-on delay normally open contact of the second alternating current contactor with a coil of the first alternating current contactor in series is connected with the two ends of the coil of the second alternating current contactor in parallel. A normally open contact of the first alternating current contactor is connected between the power source and a motor. One end of a normally open contact of the second alternating current contactor is connected with the power source. The other end of the normally open contact of the second alternating current contactor is connected with a coil of the electromagnetic brake. By means of the improved brake circuit of the electromagnetic brake, the motor operates after a brake shoe of the brake is loosened, and safe startup is guaranteed.

Description

technical field [0001] The invention relates to an improved braking circuit of an electromagnetic brake. 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 improved 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] Improved braking circuit of electromagnetic brake, including stop button, start button, first AC contactor, second AC contactor with power-on delay head and electrom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P3/18
Inventor 佘建东
Owner CHANGZHOU EAST NOAH PRINTING & DYEING
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