CN2163502Y

CN2163502Y - Energy saving fluorescent lamp ballast

Info

Publication number: CN2163502Y
Application number: CN 93225798
Authority: CN
Inventors: 李正麟
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-31
Filing date: 1993-05-31
Publication date: 1994-04-27
Anticipated expiration: 2003-05-31

Abstract

The utility model relates to a high-efficiency energy-saving fluorescent lamp ballast which can light a fluorescent lamp under the condition of low voltage without starters. The fluorescent lamp ballast is composed of inductors and a capacitor. An inductor L1, an inductor L2 and an inductor L3 are connected in series. One end of the capacitor is connected between the inductor L1 and the inductor L2. A leading-out wire between the inductor L2 and the inductor L3 is connected with one electrode of a fluorescent tube D. The utility model adopts the form of the inductors and the capacitor connected in series and parallel and forms a resonating circuit to excite the startup of the fluorescent tube. The utility model can save 50% power, brighten the fluorescent tube, and make the fluorescent tube work under the condition that one head of the lamp filament of the fluorescent tube is fractured after tests.

Description

Energy saving fluorescent lamp ballast

The utility model relates to the ballast of controlling fluorescent lamp.Particularly a kind of efficient energy-saving fluorescent lamp ballast that need not starter.

Employed in daily life fluorescent lamp through regular meeting because of starter damages can not luminous work, electric ballast has solved this problem.But because factor such as environment causes the electric ballast rate of breakdown to improve, the electric ballast cost is high and be difficult to generally apply in addition.Chinese patent application number is 90211075.6 technology that a kind of " the fluorescent lamp LC starts ballast " be provided, and it is made up of ballast, capacitor and current relay.This technical scheme is to utilize the inductance capacitance series resonance, produces high pressure at the electric capacity two ends, makes the tube starting in parallel with electric capacity.At this moment, relay by often open, normally-closed contact action carries out reactive power compensation with electric capacity is in parallel with power supply.Owing to introduced relay in the ballast, will increase assembling procedure, raise the cost.

The purpose of the utility model is to overcome the weak point of above-mentioned technology, and a kind of efficient energy-saving fluorescent lamp ballast that only adopts inductor and capacitor is provided.It can also can reduce electrisity consumption at starter fluorescent lamp under the abnormal condition, prolonging lamp tube useful life.

The purpose of the utility model realizes by following technical proposals: a kind of efficient energy-saving fluorescent lamp ballast that application inductance capacitance series and parallel formation resonant circuit generation high pressure starter fluorescent lamp is transferred the principle design of operating on low voltage comprises inductor and capacitor.Inductor L ₁, L ₂And L ₃Be connected in series.The end of capacitor C is connected inductor L ₁And L ₂Between, the other end is connected with the electrode of fluorescent tube D.Inductor L ₂And L ₃Between have lead-out wire to be connected with the electrode of fluorescent tube D.The iron core F that is used to make inductor is core type openning shape.

Task of the present utility model is further finished by following technical proposals: the span of inductance is 0.5～1.2H, the span of electric capacity is 5～8 μ F, the winding numerical value of enamelled wire on iron core F of making inductor is 600～2000 circles, and line directly is 0.27～0.33 millimeter.

The utility model because iron core adopts core type openning shape, reduces cost compared with prior art greatly, and manufacturing procedure is easy.Choose reasonable matching capacitance amount and inductance value can make the capacitive reactance resonant circuit obtain desirable resonance point reaching when the low pressure, even but under the situation of 130V alternating voltage still the starter fluorescent lamp make it the purpose of operate as normal.The utility model is simple in structure, highly versatile, and dependable performance, cheap.After tested, power savings reaches 42%～46%, and power factor is greater than 0.8, and start-up time is rapid, even under the situation of tube filament fracture, still can light fluorescent lamp, thereby prolong the useful life of fluorescent lamp greatly.

Accompanying drawing provides an embodiment of the present utility model.

Fig. 1 is a circuit diagram of the present utility model.

Fig. 2 is the employed core structure schematic diagram of the utility model.

Below, embodiment is in conjunction with the accompanying drawings described in detail the utility model

Inductor L ₁, L ₂And L ₃Be connected in series.Inductor L ₁An end be connected with power line, at inductor L ₁And L ₂A middle end that connects capacitor C, the other end of capacitor C links to each other with the electrode a of fluorescent tube D.Inductor L ₂And L ₃Between have lead-out wire to be connected with the electrode of fluorescent tube D.The iron core F that is used to make inductor is core type openning shape.Inductor L ₂And L ₃Between lead-out wire link to each other with the electrode b of fluorescent tube D.Inductor L ₃The other end link to each other with lamp tube electrode C.The electrode d of fluorescent tube then links to each other with power line.Be series and parallel between three inductors and the capacitor and form the capacitive reactance resonant circuit, behind the power connection, because of the effect of resonant circuit, two termination electrode voltages of fluorescent tube increase suddenly, and tube starting is lighted and operate as normal.

Capacitor C selects 6.5 μ F for use, inductor be the two ends of the iron core F that is core type openning shape around on enamelled wire make, the line of enamelled wire directly is 0.31 millimeter, winding number is 1000 circles, the inductance value sum is 0.85H.

Claims

1, a kind of efficient energy-saving fluorescent lamp ballast comprises inductor and capacitor, it is characterized in that:

A: inductor (L ₁), (L ₂) and (L ₃) be connected in series, an end of capacitor (C) is connected inductor (L ₁) and (L ₂) between, the other end is connected inductor (L with an electrode of fluorescent tube (D) ₂) and (L ₃) between have lead-out wire to be connected with an electrode of fluorescent tube (D);

B: the iron core (F) that is used to make inductor is core type openning shape.

2, efficient energy-saving fluorescent lamp ballast according to claim 1, the span that it is characterized in that inductance is 0.5～1.2H, the span of electric capacity is 5～8 μ F.

3, efficient energy-saving fluorescent lamp ballast according to claim 1 and 2, the winding numerical value of enamelled wire on iron core F that it is characterized in that making inductor is 600～2000 circles, line directly is 0.27～0.33 millimeter.