CN202435695U - Power-failure emergency lighting circuit for mine operation - Google Patents
Power-failure emergency lighting circuit for mine operation Download PDFInfo
- Publication number
- CN202435695U CN202435695U CN 201120522878 CN201120522878U CN202435695U CN 202435695 U CN202435695 U CN 202435695U CN 201120522878 CN201120522878 CN 201120522878 CN 201120522878 U CN201120522878 U CN 201120522878U CN 202435695 U CN202435695 U CN 202435695U
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- Prior art keywords
- power
- fluorescent tube
- emergency lighting
- circuit
- lighting circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a power-failure emergency lighting circuit for mine operation. The safety of workers at underground can be severely endangered when the underground power of a mine is failed or a lighting lamp is in failure due to the circuit failure. A fluorescent tube H is arranged in a circuit in the utility model, is connected with a resistor R2 in series, is then connected with a capacitor C in parallel, and is finally connected with a diode VD and a resistor R1 in series; the fluorescent tube H is a small-power cold cathode low-voltage fluorescent lamp; and the diode VD is a crystal diode. When power is cut off or the circuit is failed, the power-failure emergency lighting circuit of the mine operation can provide the electricity for about 1 minute to the fluorescent tube by using the capacitor as a short-time emergency power supply, thereby the valuable time can be provided for the repair or evacuation of the workers.
Description
Technical field
The utility model relates to a kind of lighting circuit, is specifically related to a kind of mine operation power-cut emergency lighting circuit.
Background technology
The mine laneway illumination is the lifeline of assurance mine normal production, also is one of major measure of mine safety production, still owing to the environment and use present situation of mine laneway, causes mine laneway to throw light on and has the inconvenience part.In case the down-hole has a power failure or circuit breaks down and after causing illuminating lamp to quit work, can seriously jeopardize the safety of staff in the down-hole.
Summary of the invention
The purpose of the utility model provides a kind of mine operation power-cut emergency lighting circuit that light source can be provided in the following short time of situation of power failure or fault.
The technical scheme that the utility model adopted is:
A kind of mine operation power-cut emergency lighting circuit is provided with fluorescent tube H in the circuit, it is characterized in that:
Parallelly connected after described fluorescent tube H connects with resistance R 2 with capacitor C, connect with diode VD and resistance R 1 again.
Described fluorescent tube H is a small-power cold cathode low-voltage fluorescent lamp.
Described diode VD is a crystal diode.
The utlity model has following advantage:
The utility model can be having a power failure or during fault, utilizing electric capacity for fluorescent tube nearly 1 minute electric power to be provided, as the emergency light source of short time, for staff's maintenance or withdraw the quality time is provided.
Description of drawings
Fig. 1 is the utility model circuit diagram.
Embodiment
Below in conjunction with embodiment the utility model is carried out detailed explanation.
The described a kind of mine operation power-cut emergency lighting circuit of the utility model is provided with fluorescent tube H in the circuit, parallelly connected with capacitor C after fluorescent tube H connects with resistance R 2, connects with diode VD and resistance R 1 again.Fluorescent tube H is a small-power cold cathode low-voltage fluorescent lamp.Diode VD is a crystal diode.
After circuit inserted electrical network, the 220V electric main was charged to the capacitor C voltage about 290V after resistance R 1 current limliting, crystal diode VD halfwave rectifier, lights fluorescent tube H through current-limiting resistance R2 simultaneously.After the power failure, the stored electric charge of capacitor C just continues the power supply to H through R2, and the fluorescent tube time-delay is ignited.Warp is (about 1min) after a while, and C two ends discharge voltage drops to about 160V, and fluorescent tube just extinguishes automatically.
Claims (3)
1. a mine operation power-cut emergency lighting circuit is provided with fluorescent tube H in the circuit, it is characterized in that:
Parallelly connected after described fluorescent tube H connects with resistance R 2 with capacitor C, connect with diode VD and resistance R 1 again.
2. a kind of mine operation power-cut emergency lighting circuit according to claim 1 is characterized in that:
Described fluorescent tube H is a small-power cold cathode low-voltage fluorescent lamp.
3. a kind of mine operation power-cut emergency lighting circuit according to claim 1 is characterized in that:
Described diode VD is a crystal diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522878 CN202435695U (en) | 2011-12-15 | 2011-12-15 | Power-failure emergency lighting circuit for mine operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522878 CN202435695U (en) | 2011-12-15 | 2011-12-15 | Power-failure emergency lighting circuit for mine operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435695U true CN202435695U (en) | 2012-09-12 |
Family
ID=46785096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120522878 Expired - Fee Related CN202435695U (en) | 2011-12-15 | 2011-12-15 | Power-failure emergency lighting circuit for mine operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435695U (en) |
-
2011
- 2011-12-15 CN CN 201120522878 patent/CN202435695U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121215 |