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An outdoor overcurrent protector suitable for protecting railway circuit safety

A protector, a used technology, applied in the direction of emergency protection circuit devices, current collectors, circuit devices, etc., can solve the problem that the overcurrent protector relies on the mains power supply and cannot work outdoors

Active Publication Date: 2017-04-05
JIANGSU KAILONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an outdoor overcurrent protector suitable for protecting the safety of railway circuits, so as to solve the technical problem that the traditional overcurrent protector depends on the power supply of the mains grid and cannot work outdoors

Method used

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  • An outdoor overcurrent protector suitable for protecting railway circuit safety
  • An outdoor overcurrent protector suitable for protecting railway circuit safety

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] figure 1 The principle block diagram of the first embodiment of the outdoor overcurrent protector is shown.

[0018] Such as figure 1 As shown, an outdoor overcurrent protector suitable for protecting the safety of railway circuits includes: a power-taking module connected to a main circuit, a charging and discharging control module connected to the power-taking module, the charging and discharging control module and a battery Connected; the battery stores electric energy through the charge and discharge control module or supplies power to the outdoor overcurrent protector.

[0019] Wherein, the power taking module includes: a transformer suitable for step-down connected to the main circuit, and a rectifier filter circuit. Specifically, the main coil of the transformer is connected to the main circuit, the secondary coil is connected to the rectifier filter circuit, and the filter circuit is connected to the charge and discharge control module. The charging and discharging ...

Embodiment 2

[0031] figure 2 The principle block diagram of the second embodiment of the outdoor overcurrent protector is shown.

[0032] Such as figure 2 As shown, as the second implementation of the outdoor overcurrent protector, that is, on the basis of Example 1, an auxiliary electronic switch is added. Specifically, the overcurrent current sensor and the short-circuit current sensor respectively pass through one The auxiliary electronic switch is connected to the signal input terminal of the processor module, and the control terminal of the auxiliary electronic switch is also connected to the signal output terminals of the overcurrent current sensor and the short circuit current sensor.

[0033] Through the auxiliary electronic switch, the interference of weak signals to the processor module is effectively avoided. Specifically, the threshold voltage of the control terminal of the auxiliary electronic switch can be set. When the voltage of the main circuit is higher than I0 and lower th...

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PUM

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Abstract

The invention relates to an outdoor overcurrent protector suitable for protecting the railway circuit safety. The outdoor overcurrent protector is characterized by comprising an electricity taking module connected with a main circuit, and a charge and discharge control module connected with the electricity taking module, wherein the charge and discharge control module is connected with a storage battery; the storage battery can store electric energy through the charge and discharge control module or supply power to the outdoor overcurrent protector. According to the invention, electric energy can be stored or the outdoor overcurrent protector can be supplied with power through the electricity taking module, the charge and discharge control module and the storage battery, so that the outdoor overcurrent protector is separated from working power supplies and can be independently operated outdoors.

Description

Technical field [0001] The invention relates to the field of railway traffic safety, in particular to an outdoor overcurrent protector suitable for protecting railway circuit safety. Background technique [0002] Various control power failures are one of the important factors that cause railway signal equipment to not work normally and reliably. At present, the outdoor overcurrent or short circuit protectors of railway signal equipment mainly use fuses or circuit breakers. Among them, the cost of the fuse is low, and its fusing current value generally has a large dispersion, especially due to aging. The phenomenon of fuse breakage during use brings serious hidden dangers to the normal operation of the equipment. Even the double-fuse device also has the above drawbacks; the circuit breaker can protect both over-current and short-circuit. As technology advances, the circuit breaks The current level of the circuit breaker continues to increase, and the time and sensitivity to cut o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/08H02H3/06H02J7/00
Inventor 袁保蓉吴建新
Owner JIANGSU KAILONG ELECTRONICS