CN2269521Y

CN2269521Y - Emergency desk lamp

Info

Publication number: CN2269521Y
Application number: CN 95234995
Authority: CN
Inventors: 于晓平; 李国栋; 于学功
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-10
Filing date: 1995-11-10
Publication date: 1997-12-03
Anticipated expiration: 2005-11-10

Abstract

The utility model relates to an emergency desk lamp which is composed of a plastic desk lamp casing, a charging circuit and an inversion boosted circuit. Compared with an old emergency lamp, the utility model has the advantages of high luminous efficiency, high brightness, high efficiency of power supply conversion, power consumption saving, no frequent flicker, easy use, etc. The utility model is particularly suitable for people to study, read, work, etc.

Description

A kind of emergent desk lamp

The utility model relates to a kind of novel energy-efficient emergency light that has.

In China city and rural area, the power tense situation does not obtain basic solution all the time, the power failure phenomenon is bright generation, had a strong impact on resident's normal life and student's study, though now on the market existing miscellaneous emergency light appear on the market, owing to the reason that has adopted common 6 watts of fluorescent tubes and circuit design aspect, thereby not only luminous efficiency is low, power inverter efficient is low, and because the exterior design aspect is used inconvenient under situations such as reading, study, office.

The utility model promptly is a kind of energy-efficient emergent desk lamp that designs according to the problem that prior art exists, have luminous efficiency height, illumination height, the low characteristics of power consumption, be specially adapted to the power-cut emergency lighting in places such as family, hotel, restaurant, office and people's reading, the usefulness of study.

How the purpose of this utility model realizes if being described in detail in detail with reference to the accompanying drawings.

Accompanying drawing 1 is outward appearance of the present utility model and cut-away view;

Accompanying drawing 2 is circuit connection diagrams of the present utility model.

Among Fig. 1, the 1st, emergent desk lamp cover, the 2nd, trichromatic energy saving fluorescent tube, the 3rd, lamp tube socket, the 4th, clamp nut, the 5th, metallic snakeskin sleeve pipe, the 6th, the soft sheath of plastics, the 7th, charging, inversion boosting module, the 8th, charging indicator light, the 9th, emergent desk lamp switch, the 10th, emergent lamp stand, the 11st, maintenance-free battery Vcc, the 12nd, power transformer is used in charging, and the 13rd, power line; B among Fig. 2 ₁B ₂Be transformer, D ₁-D ₅Be diode, D ₆Be controllable silicon, D ₇Be light emitting diode, R ₁-R ₃Be resistance, C ₁, C ₂Be electric capacity, Vcc is a maintenance-free battery, and Bx is a protective tube, and y is a power saving fluorescent lamps.

The utility model by install charging additional in the common table lamp housing, inversion step-up circuit constitutes.The charging inversion step-up circuit is made up of power circuit, automatic charging level control circuit, inversion step-up circuit.Automatically the charging level control circuit is by biasing resistor R ₂, voltage-stabiliser tube D ₅, triode V ₁, one-way SCR D ₆, maintenance-free battery Vcc and protective tube Bx form.Resistance R ₂, voltage-stabiliser tube D ₅Polyphone constitutes triode V ₁Biasing circuit.V ₁Emitter stage connects controllable silicon D ₆G end, controllable silicon D ₆A end and triode V ₁Colelctor electrode and R ₂Connect power supply "+" end together, controllable silicon K end connects battery Vcc "+" end and K switch, and K switch connects and the control inversion step-up circuit.The whole elements of the utility model are loaded in the existing desk lamp, in emergent lampshade is the trichromatic energy saving fluorescent tube, this lamp lead passes charging, the inversion boosting module 7 that the metallic snakeskin sleeve pipe connects the lamp socket inside left, and all elements except that transformer, indicator lamp, maintenance-free battery, K switch are housed in this module.At the lamp socket middle part is charge power supply transformer, charging indicator light and emergent desk lamp switch 9, is maintenance-free battery on the lamp socket right side, i.e. Vcc.

Power circuit of the present utility model is by transformer B ₁, commutation diode D ₁～D ₄, current-limiting resistance R ₁, light emitting diode D ₇Form, be the step-down of known power transformation device, bridge rectifier.Inversion step-up circuit of the present utility model is by capacitor C ₁, C ₂, resistance R ₃, transformer B ₂, triode V ₂Forming, also is known transformer feedback formula ultrasonic oscillator circuit.

The utility model is work like this, when needing charging, charge

power supply line

13 and 220V alternating current is connected, through transformer B ₁Step-down, diode D ₁～D ₄Rectification produces pulsating dc voltage, at this moment triode V ₁Conducting triggers one-way SCR D simultaneously ₆Conducting realizes the charging to battery Vcc, when battery tension rises to 6.8V, and triode V ₁End, with making one-way SCR D ₆End, charging finishes; When the needs emergency lighting, the emergency light K switch of closing, inversion step-up circuit work is by triode V ₂, transformer B ₂, resistance R ₃, capacitor C ₂The ultrasonic oscillator of forming is at coil L ₁Last generation oscillating voltage is through coil L ₃Boosting, Y is luminous for back startup fluorescent tube, realizes emergency lighting, C in the circuit ₁Ultrafiltration removes harmonic wave effect, C ₉The frequency of oscillation of decision ultrasonic oscillator.

The utility model is compared with emergency light in the past has obvious advantage:

1, luminous efficiency height: owing to adopted the trichromatic energy saving fluorescent tube, and adopt the high frequency electric source power supply, make luminous efficiency obviously improve, and do not have stroboscopic that when inversion power consumption 7.2W, lamp illumination is similar to the 60W incandescent lamp.

2, power supply conversion efficiency height: because step-up transformer adopts a jar shape magnetic core in the circuit, loss reduces.

3, easy to use: the utility model is changed emergency light pattern in the past, and is designed to the desk lamp pattern, thereby is particularly suitable for people's reading, study, office use.

Claims

1, a kind of emergent desk lamp, by install charging additional in the common table lamp housing, inversion step-up circuit constitutes, it is characterized in that the utility model charges, inversion step-up circuit is made up of power circuit, automatic charging level control circuit, inversion step-up circuit, the charging level control circuit is by biasing resistor R automatically ₂, voltage-stabiliser tube D ₅, triode V ₁, one-way SCR D ₆, maintenance-free battery Vcc, protective tube B _xForm resistance R ₂, voltage-stabiliser tube D ₅Polyphone constitutes triode V ₁Biasing circuit, V ₁Emitter stage connects controllable silicon D ₆G end, controllable silicon D ₆A end and triode V ₁Colelctor electrode and resistance R ₂Connect power supply "+" end together, controllable silicon K end connects battery Vcc "+" end and K switch, and K switch connects inversion step-up circuit; The whole elements of the utility model are loaded in the existing desk lamp, in emergent lampshade 1 trichromatic energy saving fluorescent tube (2), this lamp lead passes charging, the inversion boosting module (7) that metallic snakeskin sleeve pipe (5) connects lamp socket (10) inside left, and indicator lamp D is housed in this module except that transformer B ₇, maintenance-free battery Vcc, all elements that K switch is outer are charge power supply transformer (12) at the lamp socket middle part, charging indicator light (8), emergent desk lamp switch (9) is that to exempt to keep battery (11) be Vcc on the lamp socket right side.