CN2177872Y

CN2177872Y - Multifunctional emergency safety lamp

Info

Publication number: CN2177872Y
Application number: CN 93234954
Authority: CN
Inventors: 羊铁铮; 胡梅村; 李子祜
Original assignee: Xingxiang High New Tech Development And Application Inst Changsha City
Current assignee: Xingxiang High New Tech Development And Application Inst Changsha City
Priority date: 1993-11-02
Filing date: 1993-11-02
Publication date: 1994-09-21
Anticipated expiration: 2003-11-02

Abstract

Disclosed is a multifunctional emergency safety lamp, which comprises a charging circuit, a power cut alarm circuit, a light-control circuit and an inverter circuit; the utility model can realize that a power supply is automatically switched at the time of power cut instantly and send an alarm sound; two kinds of power supplies which are alternating current and direct current can be adopted for current supply. The utility model has the advantages of simple structure, reasonable structure and reliable performance; the loss of public places at the time of sudden power cut can be effectively reduced; the utility model is suitable for the use of shops, hotels, etc.

Description

Multifunctional emergency safety lamp

The utility model relates to a kind of light fixture, and refering in particular to is a kind of multi-function emergency security lamp.

The use of electric light, brought many convenience for people's live and work, but increase along with power consumption, electric energy day is becoming tight, and therefore, the power failure phenomenon happens occasionally, this makes troubles not only for people's live and work, the more important thing is for some public places, as the market, the restaurant, bookstores etc. locate, and meet suddenly to have a power failure, often bring some unexpected losses, though have the various emergency lamp to sell on the market, its function is simpler, is generally portable and possesses fluorescent lamp and throw light on and flashing warning-function, can not carry out simultaneously but report to the police and throw light on, therefore, in use, often feel inconvenience.

The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple and reasonable, stable performance, AC/DC and energy auto switching electric source, the multi-function emergency security lamp of reporting to the police automatically.

The knot accompanying drawing is elaborated to concrete structure of the present utility model below:

Accompanying drawing 1 is the utility model electricity functional-block diagram:

Accompanying drawing 2 is the utility model electrical schematic diagram:

Referring to accompanying

drawing

1,2, the utility model is by charging circuit 1, power failure warning circuit 2, light-operated circuit 3, inverter circuit 4 forms, and described charging circuit 1 is by transformer B1, rectifier bridge D3, potentiometer W1, resistance R 7, R8, R19, capacitor C 1, battery U forms, and power failure warning circuit 2 is by resistance R 9-R15, triode BG5-BG9, capacitor C 5, buzzer P forms; Light-operated circuit 3 is by diode D1, D4, capacitor C 1, Resistance R 1-R4, triode BG1, BG2 form, and inverter circuit 4 is by resistance R 5, R6, triode BG3, BG4, and capacitor C 2-C4, transformer B2, relay J and contact J1, J2, J3, J4, J5, J6, J7, J8 form.

The utility model operation principle is sketched in lower: when civil power is the 220V interchange, contact J1, the J3 of relay J, J5, J7 and fluorescent lamp are connected, simultaneously by transformer B1 step-down, the output direct current is to battery U charging after the rectifier bridge rectification, controls simultaneously inverter circuit 4, power failure warning circuit 2 is not worked; When mains failure, the relay J dead electricity, its contact J2, J4, J6, J8 connects with fluorescent lamp respectively, at this moment, triode BG5 in the power failure warning circuit 2 is zero because of potential difference between base newspaper and the emission, be directed at its cut-off, and triode BG6 raises and conducting because the BG5 cut-off makes its base potential, meanwhile, three pipe BG9 trigger its conducting by capacitor C 5 discharges, and BG8 base stage and emitter stage potential difference are descended, the BG8 cut-off, thereby make also conducting of BG7, buzzer P sends chimes of doom, when capacitor C 5 discharge voltages are lower than triode BG9 base stage trigger voltage, the BG9 cut-off, this section period is designed to 10 seconds, makes BG7 cut-off, buzzer stop alarm because the BG9 cut-off is directed at the BG8 conducting.

When exchanging power failure, triode BG3 in the inverter circuit 4 provides voltage through resistance R 4 by storage battery U, diode D1 delivers to its base stage, make the BG3 conducting, and then make triode BG4 conducting, its output signal is through inductance B2, capacitor C 4 forms high-frequency oscillation signal, and the direct current signal of storage battery U output is added on the transformer B2, exports fluorescent lamp to after modulation, makes it luminous.

The effect of light-operated circuit 3 is to have under the situation of natural lighting, automatically block storage battery power supply, its principle is: photodiode D4 is when unglazed the photograph, be in normally off, therefore, triode BG1 provides voltage to be in cut-off state by storage battery U, at this moment, triode BG2 is because of emitter and the very little conducting of base potential difference, when natural light irradiation photodiode D4, the D4 conducting, be directed at triode BG1 conducting, triode BG2 then ends, and makes triode BG3 conducting, inverter circuit quits work, and fluorescent lamp extinguishes.

The utility model is owing to adopt said structure, instant auto switching electric source in the time of can realizing having a power failure, and send chimes of doom, and can adopt two kinds of power supply power supplies of AC and DC, therefore, work as the market, when public place such as bookstore, restaurant runs into unexpected power failure, but the instant recovery power supply reduces unnecessary loss.

In sum, the utility model is simple and reasonable for structure, dependable performance, and the loss in the time of can effectively reducing the power failure suddenly of public place chance is suitable for using in the shop, and hotels etc. are located.

Claims

A kind of multi-function emergency security lamp comprises charging circuit 1, power failure warning circuit 2, light-operated circuit 3, inverter circuit 4 is characterized in that charging circuit 1 is by transformer B1, rectifier bridge D3, potentiometer W1, resistance R 7, R8, R19, capacitor C 1, storage battery U forms, and power failure warning circuit 2 is by resistance R 9-R15, triode BG5-BG9, capacitor C 5, buzzer P forms; Light-operated circuit 3 is by diode D1, D4, capacitor C 1, resistance R 1-R4, triode BG1, BG2 form, and inverter circuit 4 is by resistance R 5, R6, triode BG3, BG4, capacitor C 2-C4, transformer B2, relay J and contact J1, J2, J3, J4, J5, J6, J7, J8 form.