Magnetic brake controller

A technology for braking electromagnets and controllers, which is applied to electromagnets with armatures, electromagnets, electrical components, etc., can solve the problems of high power consumption, heavy weight, and many circuit components.

Active Publication Date: 2012-05-16
SHIJIAZHUANG WULON BRAKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of using a step-down transformer is that it is bulky, heavy, and consumes a lot of power; the disadvantage of using a thyristor is that there are many circuit components and a high failure rate, and the high-order harmonics generated during work will interfere with the surrounding components. The power supply causes pollution and cannot work under the UPS power supply, and the UPS power supply is a short-term emergency safety power supply used by some elevator products when there is a sudden power failure

Method used

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  • Magnetic brake controller
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Embodiment Construction

[0017] Such as figure 1 As shown, the electromagnet controller of the present invention includes a limited current circuit 1, a low-voltage detection circuit 2, a starting circuit 3, a full-wave rectification circuit 4, a freewheeling attenuation circuit 5, a high-voltage detection circuit 6, and a power supply on-off quick response circuit 7. part. Among them, the input end of the current limiting circuit 1 is used to connect to the AC power supply, the current limiting circuit 1 has two outputs, the first output is connected to the input end of the low voltage detection circuit 2, and the second output is connected to the full wave rectification circuit 4 Input terminal; the output terminal of the low-voltage detection circuit 2 is connected to the input terminal of the starting circuit 3, the output terminal of the starting circuit 3 is connected to the input terminal of the full-wave rectification circuit 4, and the output terminal of the full-wave rectification circuit 4 ...

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Abstract

The invention relates to a magnetic brake controller, which comprises a current limiting circuit (1), a low voltage checking circuit (2), a starting circuit (3), a full-wave rectification circuit (4), a subsequent flow attenuation circuit (5), a high voltage checking circuit (6) and a power supply on-off fast reaction circuit (7). The invention uses a capacitor to limit current so that the consumption and the fault rate are almost zero. A fast attenuation induction subsequent flow link is set so that the demagnetization of an electromagnet is quick and the brake of a brake is fast. The invention has no electromagnetic interference, does not cause higher harmonics pollution on a power supply and can work when UPS is used for supplying power.

Description

technical field [0001] The invention relates to a braking electromagnet control circuit, in particular to a braking electromagnet controller. Background technique [0002] Most of the brakes used in elevators and hoisting machinery use electromagnets as driving devices. The working characteristics of this electromagnet are to use a large current to pull in to realize the forced release of the brake, and use a small current to maintain the release state of the brake. . In the electromagnet controller used in the past, the method of generating and maintaining a small current is to use a step-down transformer and to use a thyristor to control it. The disadvantage of using a step-down transformer is that it is bulky, heavy, and consumes a lot of power; the disadvantage of using a thyristor is that there are many circuit components and a high failure rate. The power supply causes pollution and cannot work under the UPS power supply, and the UPS power supply is a short-term emer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/18H02M7/162
Inventor 陆若松邓伟
Owner SHIJIAZHUANG WULON BRAKE
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