CN2643156Y

CN2643156Y - Electronic flush light panel

Info

Publication number: CN2643156Y
Application number: CN 03268050
Authority: CN
Inventors: 张书勤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-29
Filing date: 2003-07-29
Publication date: 2004-09-22
Anticipated expiration: 2013-07-29

Abstract

The utility model discloses an electronic down lamp; the down lamp includes a lamp tube, an electronic rectifier and a metal bracket equipped with a cylindrical (or cup-shaped) reflecting cup; the utility model is characterized in that a live line and a zero line of a connecting wire are connected with an input end of the electronic rectifier and then connected with an output end of the lamp tube after being output; compared with the traditional inductance down lamp, the utility model can be started without flicker and used without noise; in addition, the start voltage is not high which enables the utility model to start normally with comparatively low voltage and the electricity-saving effect is obvious.

Description

The electronic type Down lamp

The utility model relates to a kind of Down lamp, and said Down lamp is as energy-efficient lamp, be a kind of can energy savings, pollution-free to electrical network, the ligthing paraphernalia of no stroboscopic.

Known Down lamp is that inductance type (or claim electromagnetic type) ballast and fluorescent tube are installed in one and have in tubular (or cup-shaped) the reflector metallic support.Its design feature is that inductance type ballast and fluorescent tube are connected in the lighting circuit, live wire connects the inductance type ballast input, connect the fluorescent tube input after the output, export the connecting to neutral line again, starter is arranged in the fluorescent tube, it is very high to the requirement of starting resistor using its shortcoming of Down lamp of inductance type ballast, when being lower than normal voltage, just be difficult to start, and noise is big, can follow phenomenons such as flicker, use the Down lamp volume weight of inductance type ballast all very big, be inconvenient to transport and install and use, the Down lamp power consumption of importantly this use inductance type ballast is big, and power savings is limited.

The purpose of this utility model is to provide a kind of novel Down lamp, can effectively overcome above-mentioned defective, and flicker free when not only starting use noiselessness, and starting resistor is less demanding, still can normally start under lower voltage, and power savings is obvious.

The technical solution of the utility model is as described below: a kind of electronic type Down lamp is provided, described electronic type Down lamp comprises that fluorescent tube, electric ballast and wiring are installed in one and have in tubular (or cup-shaped) the reflector metallic support, it is characterized in that fluorescent tube, electric ballast link together with wiring, the live wire of wiring and zero line insert the electric ballast input, insert the input of fluorescent tube after output again.

Owing to adopt the utility model of the above structure of electric ballast,, the utlity model has following outstanding advantage with the Down lamp comparison of known employing inductance type ballast in the market:

1, power savings is remarkable.Power saving feature of the present utility model mainly shows following three aspects:

(1), increases light output, raising light effect.The many factors that influence the electricity-saving lamp light efficiency are by designer and producer's decision, and the user is uncontrollable.But the luminance of electricity-saving lamp is subjected to the influence of frequency of supply, and this factor can be controlled.To discovering of some electricity-saving lamps, the electricity-saving lamp ac energisation frequency is increased to 20kHz when above from 50Hz, and light is imitated generally can improve 10%.Obviously, for same light output, after the utility model replaced traditional Inductive ballast, input power can reduce.

(2) oneself power consumption is low.All gases discharge lamp Inductive ballast power consumption generally is about 20% of lamp power.13W electricity-saving lamp Inductive ballast is generally 3W, can meet the product standard requirement as long as be not more than 4W.For two-tube 13W electricity-saving lamp, when adopting Inductive ballast, then need 2, every ballast power consumption reaches 3W, and two then is 6W.But, can accomplish only can drive and control 2 tubes the only about 3W of ballast power consumption with an electric ballast if adopt structural framing of the present utility model.

(3) has High Power Factor.Down lamp adopts Inductive ballast, and power factor generally only is 0.3-0.5.And take the utility model of measure of power factor correction, and the system power factor is easy to reach more than 0.9, even can reach 1 the level that is in close proximity to, and this adopts Inductive ballast to be difficult to realize.The raising of line power factor under same generating and converting equipment condition, can improve power supply capacity and power utilization rate effectively, improves power supply quality, saves a large amount of electric energy.

2, little, in light weight, the flicker free of volume, noiseless.The inductance type ballast that under the power frequency condition, uses, big and heavy, consume a large amount of steel and copper material, and can make lamp produce stroboscopic effect, also can send bothersome hum.The utility model is worked under the high frequency more than the 20kHz, has eliminated noise and lamp scintillation, has avoided noise jamming and kopiopia to the people.The utility model only need adopt very little magnetic element under high frequency, and weight is greatly alleviated.

3, electricity-saving lamp is started.The Down lamp that uses Inductive ballast is reduced to 190V when following at line voltage, then lamp normally can not be started.At present China's electricity supply and demand lance value is still more outstanding, in a lot of areas, and especially vast rural area, line voltage distribution is often far below the rated value of 220V.In peak times of power consumption, the situation that alternating supply voltage is lower than 160V often takes place.A lot of users because of use known technology Down lamp feel irritated often owing under low voltage, lamp can not be lighted.And employing the utility model, even supply voltage is reduced to 130V, at room temperature still can normal ignition.

Below in conjunction with drawings and Examples the utility model is explained detailedly.

Fig. 1 is a market known inductance type cylinder lamp structure schematic diagram.

Fig. 2 is the structure principle chart of an embodiment of the utility model.

Fig. 3 is the structure principle chart of another embodiment of the utility model.

Fig. 4 is the circuit theory diagrams of Fig. 2 embodiment.

Fig. 5 is the circuit theory diagrams of Fig. 3 embodiment.

In Fig. 1, the known inductance type Down lamp in market is cascaded by inductance type ballast and fluorescent tube and is made of one, and its Inductive ballast volume weight is all bigger, flicker is obvious, produce drone noise.

Fig. 2 embodiment is the structure chart that single fluorescent tube of the utility model and electric ballast use, described Down lamp comprises fluorescent tube, electric ballast and wiring, described fluorescent tube, electric ballast and wiring are installed in one and have formation integral body in tubular (or cup-shaped) the reflector metallic support, the live wire and the zero line that it is characterized in that wiring insert the electric ballast input, insert the input of fluorescent tube after output again.

Similar with the foregoing description, Fig. 3 has showed the structure chart that two fluorescent tubes and electric ballast are installed and used.

Fig. 4,5 is the circuit of electronic ballast figure of above two embodiment:

Input circuit: the 220V alternating voltage has bridge rectifier to be converted to DC voltage through after insuring resistance;

Filter circuit: form high efficiency factor filter circuit by D5, D6, D7, C2, C3, L1;

The AC/DC converter: the DC voltage that this AC/DC converter obtains after with the prime filter rectification is converted to high frequency voltage and the electric current more than the 20KHz.

By the high frequency voltage that the AC/DC converter produces, through L2 and capacitor resonance, the two ends in fluorescent tube produce a high-voltage pulse and are applied to lamp tube ends, make the fluorescent tube ignition trigger, and L2 starts the back at fluorescent tube electric current is played metering function, makes lamp works in normal condition.

Claims

A kind of electronic type Down lamp comprises fluorescent tube, electric ballast and wiring part, it is characterized in that fluorescent tube is connected with electric ballast by wiring, and the live wire of wiring and zero line insert the electric ballast input, inserts the input of fluorescent tube after output again.