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Mine car power-saving lamp

A technology for energy-saving lamps and mining carts, applied in the field of lighting, can solve problems such as low efficiency, and achieve the effects of long irradiation distance, strong beam, and improved safety.

Inactive Publication Date: 2009-11-18
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In conclusion, an obvious deficiency of the prior art is that the efficiency is low

Method used

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  • Mine car power-saving lamp

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Accompanying drawing is the schematic circuit diagram of a preferred embodiment of the present invention. The invention comprises five parts, namely, a voltage stabilizing circuit, an automatic voltage regulating circuit, an automatic conversion circuit, a high and low voltage conversion circuit and a multivibrator self-excited oscillator circuit. The voltage stabilizing circuit includes a triode V 6 , V 7 , adjustable resistance W 2 , resistor R 15 , R 16 , R 17 and current limiting resistor R D , R 13 , R 14 . The automatic voltage regulation circuit includes a one-way thyristor V 2 , single-junction tube V 3 , transistor V 4 , V 5 , Diode D 1 , current transformer CT, capacitor C 3 、C 4 , adjustable resistance W 1 , W 3 , resistor R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 . The automatic conversion circuit includes whi...

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Abstract

An energy-saving lamp for mining vehicles, the main features of which are: the energy-saving lamp for mining vehicles has a voltage stabilizing circuit, an automatic voltage regulation circuit, an automatic conversion circuit, a high and low voltage conversion circuit and a multivibrator self-excited oscillator circuit. The multivibrator self-excited oscillator circuit is connected to the automatic switching circuit. The automatic conversion circuit is connected with the automatic voltage regulation circuit. The automatic voltage regulating circuit is connected with the voltage stabilizing circuit. The voltage stabilizing circuit is connected to the high and low voltage conversion circuit. The high and low voltage conversion circuit, the voltage stabilizing circuit and the automatic voltage regulation circuit are respectively connected to the multivibrator self-excited oscillator circuit. The invention works stably in a wide voltage range and under severe conditions, and has a long irradiation distance. Compared with the prior art, it not only saves a large amount of electric energy, but also improves work safety.

Description

technical field [0001] The present invention relates to a device in the field of lighting, in particular to an energy-saving device that utilizes light-emitting diodes for lighting. More specifically, the present invention refers to a mining car energy-saving lamp. Electrical Department. Background technique [0002] At present, 24V incandescent lamps are mainly used for lighting underground electric locomotives in coal mines, and the power used is 250V or 550V pulsating direct current. Because DC power needs to be equipped with inverter power supply or other step-down equipment, the power consumption is high and the cost is high; and because the line is long and the voltage drop is large, the voltage at the beginning of the power supply is too high, and the damage rate of the lighting device is high; and the locomotive runs to the end of the line When the voltage drops too much, the lighting brightness is dimmed. More seriously, the voltage drop on the line is too high in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/00H05B33/08H05B44/00
CPCY02B20/40
Inventor 李晓刚马艳马波崔然王建民石善良
Owner SHANDONG UNIV OF SCI & TECH
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