CN203136305U

CN203136305U - Household low-power emergency illuminating lamp

Info

Publication number: CN203136305U
Application number: CN201320003663XU
Authority: CN
Inventors: 周玉林
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-06
Filing date: 2013-01-06
Publication date: 2013-08-14
Anticipated expiration: 2023-01-06

Abstract

Provided by the utility model is a household low-power emergency illuminating lamp. The emergency illuminating lamp is characterized in that the lamp is composed of a 6-V direct-current power supply, a feedback type oscillation circuit and bias circuit, a boost and illuminating circuit, a direct-current power supply indicating circuit. The feedback type oscillation circuit and bias circuit comprises an NPN type transistor VT1, an NPN type transistor VT2, an oscillation winding L1 of a oscillation boosting transformer T, a feedback winding L2 of the oscillation boosting transformer T, a resistor R2, and a linear potentiometer RP; and the boost and illuminating circuit includes a boost winding L3 of the oscillation boosting transformer T and a fluorescent lamp RGD. According to the utility model, the provided household low-power emergency illuminating lamp is suitable for fluorescent lamps with the power of 3 to 4 Ws; and the requirement of emergency illumination under the circumstances of temporary electricity interruption of a power supply line can be met. And if the emergency illuminating lamp uses four 1# manganese-zinc dry batteries, the illumination time can reach 120 minutes. And the provided emergency illuminating lamp also is suitable for emergency illumination or fire-fighting emergency illumination at various small public places.

Description

Family expenses small-power emergency light

Technical field

The utility model belongs to electronics and emergency lighting technical field, relates to a kind of family expenses small-power emergency light.

Background technology

People are also more and more higher to the dependence of power supply, in case temporary interruption takes place, bring very big influence will for normal work, life and student's study, even can cause some economic losses.Family expenses small-power emergency light is the emergency lighting that is independent of outside the utility grid.

Family expenses small-power emergency light described in the utility model is fit to adapted 3～4W fluorescent lamp, emergency lighting requirement when it can tackle the supply lines temporary interruption, this family expenses small-power emergency light is if use 4 joint 1# MnZn dry cells, and lighting hours can reach 120 minutes.It also is applicable to emergency lighting or the fire emergency of various small-sized public places.

Below describe family expenses small-power emergency light described in the utility model related correlation technique content in force in detail.

The utility model content

Goal of the invention and beneficial effect: people are more and more higher to the dependence of power supply now, in case temporary interruption takes place, bring very big influence will for normal work, life and student's study, even can cause some economic losses.Family expenses small-power emergency light described in the utility model is fit to adapted 3～4W fluorescent lamp, the requirement of emergency lighting when it can tackle the supply lines temporary interruption, this family expenses small-power emergency light is if use 4 joint 1# MnZn dry cells, and lighting hours can reach 120 minutes.It also is applicable to emergency lighting or the fire emergency of various small-sized public places.

Technical scheme: family expenses small-power emergency light, it by 6V DC power supply, feedback type oscillating circuit and biasing circuit, boost and lighting circuit, DC power supply indicating circuit are formed, its feature comprises:

Feedback type oscillating circuit and biasing circuit: it is by NPN transistor VT1, NPN transistor VT2, the vibration winding L 1 of oscillation step-up transformer T and feedback winding L 2, resistance R 2 and linear potentiometer RP form, the base stage of NPN transistor VT1 connects the end of the same name of oscillation step-up transformer T feedback winding L 2, the different name end of oscillation step-up transformer T feedback winding L 2 is by the end of resistance R 2 wiring potentiometer RP, the anodal VCC of the other end of linear potentiometer RP and movable end connection circuit thereof, the collector electrode of the collector electrode of NPN transistor VT1 and NPN transistor VT2 connects the different name end of the vibration winding L 1 of transformer T, the emitter of NPN transistor VT1 connects the base stage of NPN transistor VT2, the emitter connection circuit ground GND of NPN transistor VT2, the anodal VCC of termination circuit of the same name of transformer T vibration winding L 1;

Boost and lighting circuit: it is made up of boost winding L 3 and the fluorescent lamp RGD of oscillation step-up transformer T, the boost end of a termination fluorescent lamp RGD of winding L 3 of oscillation step-up transformer T, oscillation step-up transformer T the boost other end of winding L 3 and the other end connection circuit ground GND of fluorescent lamp RGD.

The 6V dc power anode links to each other by the anodal VCC of mains switch SW connection circuit, and the 6V dc power cathode links to each other with circuit ground GND.

The circuit working principle: the circuit of family expenses small-power emergency light is formed Darlington by two NPN transistor VT1, VT2, and the vibration winding L 1 of oscillation step-up transformer T, feedback winding L 2 constitute the feedback type oscillating circuit.Linear potentiometer RP and resistance R 2 provide the offset operation electric current for Darlington, and linear adjustment potentiometer RP can control the power output of emergency light.Winding L 3 outputs of boosting of oscillation step-up transformer are greater than 220V pulse ac electricity, and the mercuryvapour and the fluorescent material that are used in the percussion fluorescent lamp are lighted fluorescent lamp RGD.

Description of drawings

Accompanying drawing 1 is the circuit working schematic diagram of family expenses small-power emergency light; T in the accompanying drawing 1 is oscillation step-up transformer.

Embodiment

Specification requirement according to the components and parts of the circuit working schematic diagram of the family expenses small-power emergency light shown in the accompanying drawing 1 and description of drawings and the following stated is implemented, and can realize the utility model.

The selection of components and parts and technical parameter thereof

VT1 is NPN transistor, and the model of selecting for use is power transistor in the NPN types such as 2SC9013;

VT2 is NPN type high power transistor, and selecting model for use is 3DD59A, β 〉=80;

The resistance of resistance R 1 is 510 Ω; The resistance of resistance R 2 is that 220 Ω, power are 1/4W; RP is linear potentiometer, and its resistance is 2.7K Ω;

LED selects ￠ 5 red light emitting diodes for use;

RGD is fluorescent lamp, and selecting power for use is the fluorescent lamp of 3～4W;

DC power supply can be used 4 joint 1# MnZn dry cells, also can select the storage battery of 6V, 4AH for use;

SW is mains switch, selects single-pole single-throw switch (SPST) for use.

Circuit production main points and circuit debugging

1. the making of oscillation step-up transformer T: the magnetic core of transformer T is selected U-shaped FERRITE CORE or ring type magnetic core for use, also available common E type or F type silicon steel sheet replace, but conversion efficiency will reduce, vibration winding L 1, feedback winding L 2 is all selected the enamelled wire of ￠ 0.3～0.4mm for use, the coiling number of turns is respectively 45 circles, 30 circles, the winding L of boosting 3 is used the enamelled wire of ￠ 0.12～0.15mm, the coiling number of turns is 800 circles, winding frame can be made of the thick hardboard of 1mm, two groups of elementary windings and secondary boosting will add one deck polyester film between the winding, and note the sign of two groups of primary coil ends of the same name;

2. the circuit of family expenses small-power emergency light is as long as the components and parts performance of using is intact, annexation according to components and parts shown in the accompanying drawing 1 is welded, the physics wiring is conscientiously checked and check errorless after, the circuit of this device need not debugged and get final product operate as normal;

3. as long as components and parts are good, welded and installed is errorless, can hear slight frizzle after the energising, this explanation circuit starting of oscillation; If not starting of oscillation of circuit, the two ends that vibration winding L 1 maybe will be able to be fed back winding L 2 are exchanged and are got final product;

4. linear adjustment potentiometer RP can control the power output of family expenses small-power emergency light; During circuit debugging linear potentiometer RP movable end is spun on the centre position, can makes illuminating lamp RGD luminous after the connection 6V DC power supply, adjust linear potentiometer RP and make the complete machine operating current between 160～210mA;

5. use 4 joint 1# MnZn dry cells, family expenses small-power emergency light lighting hours is greater than 120 minutes, when finding that phenomenons such as dim or flicker appear in fluorescent lamp, should charge a battery at once or changes battery.

Claims

1. family expenses small-power emergency light, it by 6V DC power supply, feedback type oscillating circuit and biasing circuit, boost and lighting circuit, DC power supply indicating circuit are formed, its feature comprises:

Described feedback type oscillating circuit and biasing circuit are by NPN transistor VT1, NPN transistor VT2, the vibration winding L 1 of oscillation step-up transformer T and feedback winding L 2, resistance R 2 and linear potentiometer RP form, the base stage of NPN transistor VT1 connects the end of the same name of oscillation step-up transformer T feedback winding L 2, the different name end of oscillation step-up transformer T feedback winding L 2 is by the end of resistance R 2 wiring potentiometer RP, the anodal VCC of the other end of linear potentiometer RP and movable end connection circuit thereof, the collector electrode of the collector electrode of NPN transistor VT1 and NPN transistor VT2 connects the different name end of the vibration winding L 1 of transformer T, the emitter of NPN transistor VT1 connects the base stage of NPN transistor VT2, the emitter connection circuit ground GND of NPN transistor VT2, the anodal VCC of termination circuit of the same name of transformer T vibration winding L 1;

Described boost and lighting circuit is made up of boost winding L 3 and the fluorescent lamp RGD of oscillation step-up transformer T, the boost end of a termination fluorescent lamp RGD of winding L 3 of oscillation step-up transformer T, oscillation step-up transformer T the boost other end of winding L 3 and the other end connection circuit ground GND of fluorescent lamp RGD;

Described 6V dc power anode links to each other by the anodal VCC of mains switch SW connection circuit, and the 6V dc power cathode links to each other with circuit ground GND.