CN2313150Y

CN2313150Y - Shared-converter self-ballasting fluorescent lamp

Info

Publication number: CN2313150Y
Application number: CN 97238688
Authority: CN
Inventors: 孙志东
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-11
Filing date: 1997-08-11
Publication date: 1999-04-07
Anticipated expiration: 2007-08-11

Abstract

The utility model discloses a shared-converter self-ballasting fluorescent lamp which relates to a fluorescent lamp for illumination. The utility model is mainly formed by that an independent converter is matched with an independent self-ballasting fluorescent lamp. A plurality of self-ballasting fluorescent lamp can share one converter. The utility model solves the problems that one lamp tube is matched with one electronic ballast, the product price is high, and the wasting is large in an existing energy-saving fluorescent lamp. The energy efficiency of electronic elements can be fully exerted. The utility model has the advantages of simple structure, easy manufacture, convenient installation and operation, low manufacture and operation cost. Compared with an existing energy-saving fluorescent lamp, the utility model can be generalized conveniently, and the utility model is suitable for places whose light use is centralized, such as public places, families, etc.

Description

Shared current transformer self-ballasted fluorescent lamp

The utility model relates to a kind of fluorescent lamp.

With U type electronic ballast energy-saving fluorescent lamp, claim that also electricity-saving lamp is an example, existing electricity-saving lamp all adopts a fluorescent tube to join the operational version of an electric ballast.And the load capacity of electric ballast and all can far surpass single fluorescent tube service life in fact.The load capacity of the main components and parts of electric ballast has only brought into play 1/3rd to 1/20th under normal conditions, and be ten to 20 times of fluorescent tube service life its service life.As seen the efficiency of electric ballast is not given full play to.Therefore existing electricity-saving lamp operational version is unreasonable uneconomic.It makes the electricity-saving lamp manufacturing cost and use cost too high, thereby has restricted applying of this energy-conserving light source.

But the purpose of this utility model makes many main electronic devices and components of fluorescent lamp common sparing exactly.Thereby avoid a large amount of waste of electronic components.Reduce and manufacture and use cost.To accelerate applying of this energy-conserving light source.

The utility model is realized as follows: will have now in the electric ballast and needn't separate a kind of stand-alone product of formation with two formants of rectification, unsteady flow that the variation of fluorescent tube technical parameter value changes: current transformer.Again ballast, these two palpuses of starter are changed the unit that changes parameter with the fluorescent tube technical parameter and combine the another kind of stand-alone product of formation with fluorescent tube: self-ballasted fluorescent lamp.Many self-ballasted fluorescent lamps can a shared current transformer.The efficiency of current transformer can be given full play to like this.

Below in conjunction with accompanying drawing detailed content of the present utility model is described.

Referring to Fig. 1, the utility model is made of current transformer (1) and self-ballasted fluorescent lamp (2).Its principal character is many shared current transformers of self-ballasted fluorescent lamp.

Current transformer (1) is made of rectification, two element circuits of unsteady flow.Its principal character is can be with 50 hertz low frequency alternating current (P _i) be transformed to the high-frequency alternating current output of tens KHzs.Its peak power output is (Pomax).Can use simultaneously for 1 to N self-ballasted fluorescent lamp that the power total value is no more than current transformer peak power output (Pomax) value.Promptly in use should satisfy: Pomax 〉=P ₁+ P ₂+ ... + P _NBut the working method auto-excitation type of current transformer is independent-excited also.

Self-ballasted fluorescent lamp (2) is made of ballast, starter, three element circuits of fluorescent tube or element.Its principal character is that the high-frequency alternating current that can utilize current transformer (1) to provide makes the fluorescent tube starter ignite and make it to remain on satisfactory illumination work state.For achieving the above object, the technical parameter value fibrous root of ballast, starting circuit element is determined according to the technical parameter value of fluorescent tube.

Shared current transformer self-ballasted fluorescent lamp of the present utility model is because shared current transformer (1) simplifies each stand-alone product structure.Saved a large amount of electronic devices and components, product cost and use cost are reduced.And easy to use, be more suitable for using in large-scale popularization.

Fig. 2 is enforcement circuit theory diagrams of the present utility model.

According to enforcement circuit shown in Figure 2, D is a rectifier cell among the figure, can adopt crystal diode or bridge heap etc., and its breakdown voltage value should be greater than 500 volts.

T ₁, T ₂Be the unsteady flow element, its effect is the cooperation generation self-oscillation by B and self-ballasted fluorescent lamp (2), and the direct current that rectification is obtained becomes the high-frequency alternating current.Its element can adopt transistor, FET or integrated circuit, thick film circuit.Its breakdown voltage value should be greater than 400 volts, and the peak power output value of current transformer (1) depends primarily on T ₁, T ₂Absolute rating.Should note suitably leaving surplus during design.

L is a rectifier cell, and its effect is to make fluorescent tube G starter after earlier the high-frequency alternating current of importing being boosted.Then the high-frequency alternating current being produced choking effect makes fluorescent tube G be operated in satisfactory low-voltage illumination work state.Its parameter value is determined according to the technical parameter of fluorescent tube.Can adopt hollow coil also can adopt magnetic core coil.

C is the starter element, and its effect is that the filament for fluorescent tube G provides current path, is heated the back at filament and with ballast element L acting in conjunction fluorescent tube G starter is ignited.Its element can adopt electric capacity of the dacron etc., and its breakdown voltage value should be greater than 630 volts.

G is a fluorescent tube, can adopt the fluorescent tube of U type, H type, straight type or other various types, specification, color and technical parameter.

Description of drawings:

Fig. 1 represents structural principle block diagram of the present utility model.

Fig. 2 represents enforcement circuit theory diagrams of the present utility model.

Claims

1, a kind of shared current transformer self-ballasted fluorescent lamp, it is characterized in that constituting by current transformer (1) and self-ballasted fluorescent lamp (2), current transformer (1) is connected and composed by rectification and two formant circuit of unsteady flow again, self-ballasted fluorescent lamp (2) is is then connected and composed by ballast element, starter element and fluorescent tube, the shared current transformers of many self-ballasted fluorescent lamps (2) (1), promptly its power output of a current transformer (1) can drive many self-ballasted fluorescent lamps (2) and works simultaneously.