CN2251858Y

CN2251858Y - AC and dc electronic energy-saving daylight lamp

Info

Publication number: CN2251858Y
Application number: CN 95228145
Authority: CN
Inventors: 颉海勋; 侯芝森
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-19
Filing date: 1995-10-19
Publication date: 1997-04-09
Anticipated expiration: 2005-10-19

Abstract

The utility model belongs to the technical field of DC energy-saving fluorescent lamp manufacture. The utility model is composed of an AC and DC transducer and a fluorescent lamp start operation device, wherein, the AC and DC transducer is composed of a step-down rectification circuit (1), an AC and DC changeover circuit (2), and a self-control charge detection circuit (3), and the fluorescent lamp start operation device is composed of a rectification circuit (5), a fluorescent lamp start operation circuit (6), and a square wave generator (7). The utility model has the advantages that the structure design of the circuit is novel, simple, and practical; the disadvantage that both ends of a fluorescent lamp are blackened existing in a background art is solved by the design of the start circuit; an AC and DC self-control changeover is realized, the inversion efficiency is high, and energy can be saved.

Description

The DC/AC electronic energy-saving daylight lamp

The utility model belongs to the DC/AC electronic energy-saving daylight lamp and makes the field.

Background technology of the present utility model: the emergency light of selling on city's field boundary.What adopt on circuit design is AC charging, and the storage battery DC power supply makes inverter produce high pressure and directly lights fluorescent tube through single-tube contravariant or two-tube inverter circuit during power failure, is generally two-tube 6 watts of fluorescent tubes.Its weak point: the one, circuit design is unreasonable, and fluorescent tube is cold start-up, very easily causes fluorescent tube two ends blackout, the 2nd, inverter circuit efficient is low, power consumption is high, and the 3rd, can not realize alternating current-direct current automatic control conversion.

Purpose of design of the present utility model: avoid weak point of the prior art, design a kind of alternating current-direct current automatic control conversion of can realizing, can realize the DC/AC electronic energy-saving daylight lamp that fluorescent tube soft start and inversion efficiency are high again.

Design of the present utility model: the DC/AC electronic energy-saving fluorescent lamp tube is made of AC/DC changeover switch and fluorescent start work device.AC/DC changeover switch be used for realizing the AC and DC power supply effective switching and to storage battery from controlled charging.When the 220V alternating current, cut off direct current automatically, alternate current operation; When not having the 220V alternating current, connect DC power supply automatically, supply with the work of fluorescent start work device by DC power supply (storage battery), thereby guarantee the normal illumination of fluorescent tube.This AC/DC changeover switch constitutes by step-down rectifying circuit (1), ac-dc converter circuit (2) with from controlled charging testing circuit (3).Fluorescent start work device is used for realizing the soft start (delayed startup) and the operate as normal of fluorescent tube, and the purpose of soft starting circuit design is to avoid the cold start-up of fluorescent tube when starting, and reaches the drawback of eliminating fluorescent tube two blackout.This fluorescent start work device starts operating circuit (6) by rectification circuit (5), fluorescent tube and square-wave generator (7) constitutes.Square wave sends out device device (7) and fluorescent tube starts the purpose that operating circuit (6) design has realized the efficient energy-saving inversion.

The utility model is compared with background technology, and the one, circuit structure does not have meter novel, simple, practical; The 2nd, the design of soft starting circuit has solved the drawback of the fluorescent tube two blackout that exists in the background technology; The 3rd, alternating current-direct current automatic control conversion, inversion efficiency height, energy-conservation.

Description of drawings:

Fig. 1 is the electrical block diagram of AC/DC changeover switch in the DC/AC electronic energy-saving fluorescent lamp tube.

Fig. 2 is the electrical block diagram of fluorescent start work device in the DC/AC electronic energy-saving fluorescent lamp tube.

1 and 2 pair of the utility model is done with narration in conjunction with the accompanying drawings.

The DC/AC electronic energy-saving daylight lamp, it comprises storage battery (4), constitute by AC/DC changeover switch and fluorescent start work device, power output end in the step-down rectifying circuit in the AC/DC changeover switch (1) meets the contact Jk1-3 of ac-dc converter circuit (2) repeat circuit J1 respectively, one end of resistance R 1 and capacitor C 1 is being just in controlled charging testing circuit (3), negative pole, the power input of rectification circuit (5) meets the power output end (a in the AC/DC changeover switch respectively in the fluorescent start work device, b), the power output end of rectification circuit connects an end of resistance R 12 in the fluorescent start operating circuit (6) respectively, 1 pin of 555 time-base circuit IC1 in one end of capacitor C 5 and the square wave generation circuit (7), one end of resistance R 6.Ac-dc converter circuit (2) is made of resistance R 1 and relay J 1, the fixed contact Jk1-3 of J1 connects an end of J1 coil, the input of power supply in the other end of another termination R1 of J1 coil and the fluorescent start work device, the fixed contact JK1-2 of J1 connects the positive pole of storage battery (4), and the moving contact JK1-1 of J1 connects power input in the fluorescent start work device; From controlled charging testing circuit (3) by resistance R 2～R5, capacitor C 1 and C2, diode D3, triode T1 and T2 and relay J 2 constitute, the end of the termination R5 of C1, the fixed contact Jk2-2 of J2, the moving contact Jk-1 of J2 connects the positive pole of D3, the negative pole of D3 connects the end of C2, the positive pole of storage battery (4) and the end of R4, the end of another termination R2 of R5, one end of the collector electrode of T1 and J2 coil, the end of another termination R3 of R2, the other end of R4, the base stage of T1, the emitter of another termination T2 of R3, the negative pole of the other end of C2 and storage battery (4), the emitter of T1 connects the base stage of T2, and the collector electrode of T2 connects the other end of J2 coil; Fluorescent start operating circuit (6) is by transformer B2, triode T3～T6, relay J, capacitor C 4, C5, C7, resistance R 9～R12 constitutes, the end of another termination C4 of R12, the base stage of T6, the end of another termination R11 of C4, the collector electrode of another termination T6 of R11, one end of J coil, the center sub of B3 primary coil, the end of J moving contact and C5, the other end ground connection of C5, the collector electrode of another termination T5 of J coil, the emitter of T6 connects the base stage of T5, the emitter of T5 connects the end of R12, the emitter of T4 and T3, one end of fluorescent tube one lamp base and an end of B2 secondary coil, the base stage of T4 connects the end of R10, the collector electrode of another termination T3 of R10 and an end of B2 primary coil, the collector electrode of T4 connects the other end of B2 primary coil, the base stage of T3 connects the end of R9,3 pin of 555 time-base circuit IC1 in another termination square wave generation circuit (7) of R9, another another lamp base of termination fluorescent tube of B2 secondary coil, another termination J fixed contact JK of fluorescent tube one lamp base; Square wave generation circuit is made of 555 o'clock base electrode IC1, resistance R 6～R8, capacitor C 6 and C7,4,8 pin of IC1 connect the other end of R6 and the end of R8, the end of another termination R7 of R8 and 7 pin of IC1, the end of another termination C6 of R7 and 2,6 pin of IC1, the other end ground connection of C6.Operation principle: 1, AC/DC changeover switch is by step-down rectifying circuit, ac-dc converter circuit, form from controlled charging testing circuit and storage battery four parts.D1 will exchange the DC power supply that 220 volts of step-down rectifiers produce 12V with D2, B1 in circuit; The alternating current-direct current automatic switching circuit is made up of relay J 1, R1,12 volts of power supplys behind 220 volts of step-down rectifiers of the 12V direct current of storage battery and civil power are for J1 work, relay J 1 is normally closed during no civil power, make battery power supply with the work of fluorescent start work device, light fluorescent tube, when civil power is arranged, 12V power supply behind the step-down rectifier is supplied with from the controlled charging testing circuit, D3 charges to storage battery through the make and break contact commonly used of the contact Jk2 of J2 in the circuit, get owing to J1 simultaneously, Jk-1 separates with Jk-2, has stoped the electric current composition in the storage battery to enter fluorescent lamp work device.Form the control charger by T1, T2, R2～R5, wherein, R2, R3 provide value and the down inclined to one side value partially of going up of T1, T2, R4 compares the voltage condition of storage battery and the operating state of T1T2, when being charged to certain magnitude of voltage, the T1 emitter current strengthens, and T2 conducting thereupon makes the T2 adhesive, stops filling purpose thereby reach.The clutter composition of C2 during to open circuit considered and removed, and prevents the vibration of relay.2, the operation principle of fluorescent start work device is: the pole changing circuit of forming by bridge rectifier makes the both positive and negative polarity correspondence connect the 12V power supply by K1 switch (light modulation on controll day), 12V power supply supplying party wave producer, circuit and square-wave (the R6 that forms by 555 time-base circuit IC1, R7, the R8C4 composition) wherein R7 finely tunes FREQUENCY CONTROL about 100HZ frequency, square-wave signal by the output of IC13 pin makes T3 in positive half cycle work by R9, negative half period stops, simultaneously the voltage collector electrode of T3 is minimum when positive half cycle, the highest during negative half period, make it be connected on the base stage of T4 by R10, T4 is worked when the negative half period with T3, and by inverter boost make its when beginning output about 300V～600V, be added in the fluorescent tube two ends, circuit is by connecting normal battle of relay filament, amount of flow by time control (delayer is to 3～5 seconds heating of filament) accelerated electron reaches luminous, after be stabilized in luminance, because channel frequency is constant, guaranteed the reliability of its work.Delayer is made up of T5, T6, R11C4, and purpose is to realize soft start, has avoided the deficiency of fluorescent tube two blackout, thereby has prolonged the useful life of fluorescent tube, has reached purpose of design of the present utility model.Relieving is kept, but filament reaches energy-conservation and stable order ground not at the loss electric current.

Claims

1, a kind of DC/AC electronic energy-saving daylight lamp, it comprises storage battery (4), it is characterized in that: constitute by AC/DC changeover switch and fluorescent start work device, power output end in the step-down rectifying circuit in the AC/DC changeover switch (1) meets the contact Jk1-3 of ac-dc converter circuit (2) repeat circuit J1 respectively, one end of resistance R 1 and capacitor C 1 is being just in controlled charging testing circuit (3), negative pole, the power input of rectification circuit (5) meets the power output end (a in the AC/DC changeover switch respectively in the fluorescent start work device, b), the power output end of rectification circuit connects an end of resistance R 12 in the fluorescent start operating circuit (6) respectively, 1 pin of 555 time-base circuit IC1 in one end of capacitor C 5 and the square wave generation circuit (7), one end of resistance R 6.

2, DC/AC electronic energy-saving daylight lamp according to claim 1, it is characterized in that: ac-dc converter circuit (2) is made of resistance R 1 and relay J 1, the fixed contact Jk1-3 of J1 connects an end of J1 coil, the input of power supply in the other end of another termination R1 of J1 coil and the fluorescent start work device, the fixed contact JK1-2 of J1 connects the positive pole of storage battery (4), and the moving contact JK1-1 of J1 connects power input in the fluorescent start work device; From controlled charging testing circuit (3) by resistance R 2～R5, capacitor C 1 and C2, diode D3, triode T1 and T2 and relay J 2 constitute, the end of the termination R5 of C1, the fixed contact Jk2-2 of J2, the moving contact Jk-1 of J2 connects the positive pole of D3, the negative pole of D3 connects the end of C2, the positive pole of storage battery (4) and the end of R4, the end of another termination R2 of R5, one end of the collector electrode of T1 and J2 coil, the end of another termination R3 of R2, the other end of R4, the base stage of T1, the emitter of another termination T2 of R3, the negative pole of the other end of C2 and storage battery (4), the emitter of T1 connects the base stage of T2, and the collector electrode of T2 connects the other end of J2 coil; Fluorescent start operating circuit (6) is by transformer B2, triode T3～T6, relay J, capacitor C 4, C5, C7, resistance R 9～R12 constitutes, the end of another termination C4 of R12, the base stage of T6, the end of another termination R11 of C4, the collector electrode of another termination T6 of R11, one end of J coil, the center sub of B2 primary coil, the end of J moving contact and C5, the other end ground connection of C5, the collector electrode of another termination T5 of J coil, the emitter of T6 connects the base stage of T5, the emitter of T5 connects the end of R12, the emitter of T4 and T3, one end of fluorescent tube one lamp base and an end of B2 secondary coil, the base stage of T4 connects the end of R10, the collector electrode of another termination T3 of R10 and an end of B2 primary coil, the collector electrode of T4 connects the other end of B2 primary coil, the base stage of T3 connects the end of R9,3 pin of 555 time-base circuit IC1 in another termination square wave generation circuit (7) of R9, another another lamp base of termination fluorescent tube of B2 secondary coil, another termination J fixed contact JK of fluorescent tube one lamp base; Square wave generation circuit is made of 555 o'clock base electrode IC1, resistance R 6～R8, capacitor C 6 and C7,4,8 pin of IC1 connect the other end of R6 and the end of R8, the end of another termination R7 of R8 and 7 pin of IC1, the end of another termination C6 of R7 and 2,6 pin of IC1, the other end ground connection of C6.