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Flame-proof intelligent combined type charging device

A charging device and composite technology, applied in circuit devices, battery circuit devices, secondary battery charging/discharging, etc., can solve the problem that the pointer type voltage and ammeter is not easy to observe, the overvoltage protection is unreliable, and the setting switch has many explosion points, etc. problems, to achieve the effect of reducing the loss of explosion point, reducing weight, and reducing hidden dangers of accidents

Inactive Publication Date: 2005-11-30
董佩文 +1
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  • Abstract
  • Description
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Problems solved by technology

[0004] The invention provides an explosion-proof intelligent composite charging device, which can solve the existing problems in the prior art, such as unreliable overvoltage protection, too many switches and too many detonation points, and the need to often detect the phase sequence and trigger phase shifting. There are many problems that the circuit is prone to failure, the weight and volume of the current transformer and the comparison current transformer increase, and the measurement error is large, and the pointer voltage ammeter is difficult to observe in the case of insufficient light in the mine

Method used

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Embodiment Construction

[0015] The explosion-proof intelligent composite charging device of the present invention has a housing 1 with a door 2 on the housing 1, a charging device 5 is installed in the housing 1, observation windows 3 and 4 and a switch potentiometer RPK are respectively installed in the upper part of the housing 1 The digital voltmeter V and digital ammeter A installed in the housing 1 correspond to the observation windows 3 and 4 respectively, and the digital voltmeter V, digital ammeter A and switch potentiometer RPK are connected to the charging device 5 through wires respectively. The circuit of the charging device 5 includes a rectifier transformer T, an explosion-proof switch control transformer KB1 and control transformers KB2 and KB3, the rectifier transformer T is connected with the thyristor KV1-3 and the rectifier tube VD1-3, and the thyristor KV1-3 is connected in series with the advection reactor The device L is connected to the charging terminal 103, the rectifier tube ...

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Abstract

This invention provides one explosion proof intelligent compound charging device, which comprises shell with door and charging device fixed and the shell is fixed with observe window and switch relay PPK and the digital voltage meter V fixed on the shell and digital current meter A relative to the observe windows. The digital voltage meter V, digital current meter A and switch relay PPK are connected to the charging device through wire.

Description

[0001] Field [0002] The invention relates to the technical field of underground explosion-proof charging devices in coal mines. Background technique [0003] At present, most of the explosion-proof charging devices used in coal mines use traditional technologies, namely: 1. Use a resistance-capacitance absorption circuit for overvoltage protection; 2. Use multiple switches to operate start, stop, over-current reset, and voltage and current respectively. 3. Use synchronous transformers and install phase sequence detection devices; 4. Use traditional trigger phase-shifting circuits; 5. Use current transformers and comparative current transformers; 6. Use pointer voltage and ammeters. There are the following disadvantages: 1. The overvoltage protection is unreliable; 2. There are too many switches, and there are too many detonation points correspondingly, which is very unsafe; 3. It is often necessary to detect the phase sequence, and the detection workload is heavy; 4. Trigger...

Claims

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Application Information

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IPC IPC(8): H01M10/44
CPCY02E60/10
Inventor 陈军李欢李东董佩文刘兆祥李少杰李凤祥耿长娥
Owner 董佩文
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