CN2621333Y

CN2621333Y - Inductance fluorescent lamp ballast

Info

Publication number: CN2621333Y
Application number: CN 03247016
Authority: CN
Inventors: 钟学周; 陈远红
Original assignee: GUANGZHOU JIUFO ELECTRIC APPLIANCE CO Ltd
Current assignee: GUANGZHOU JIUFO ELECTRIC APPLIANCE CO Ltd
Priority date: 2003-06-09
Filing date: 2003-06-09
Publication date: 2004-06-23
Anticipated expiration: 2013-06-09

Abstract

The utility model discloses an inductance fluorescent lamp ballast which comprises a framework, an inductance coil which is wound on the framework, and an iron core formed by stacking silicon steel sheets, wherein the iron core formed by stacking the silicon steel sheets can be in an MI shape, a TU shape, an O shape or a TL shape. The output end of a heater winding of the utility model can be connected in an electric loop of two fluorescent lamps in series or in parallel. The voltage arranged by switching on an electric source in a circuit is arranged on one end of each fluorescent lamp to make the fluorescent lamps be always in the heating state and guarantees the normal work of two fluorescent lamps. The utility model has the advantages of simple structure, easy production, material saving and energy saving.

Description

The novel inductive fluorescent lamp ballast

Technical field

The utility model relates to a kind of electric inductance type fluorescent lamp ballast.

Background technology

It with the fluorescent lamp tube inductance type ballast that the light fixture of light source has been typically equipped with the effect of inductance ballast.In view of the structure of existing inductance type ballast mainly by an inductance coil of winding on skeleton and install the iron core that builds up by silicon steel sheet and constitute.Therefore, existing light fixture can only be implemented to use with the action mode that an inductance type ballast is joined a fluorescent tube, and like this, the material of consumption can be more, and manufacturing cost is also higher.

Summary of the invention

The purpose of this utility model is at above-mentioned deficiency, and a kind of novel inductive fluorescent lamp ballast simple and compact for structure is provided, can reach the purpose that only can drive two fluorescent tubes with a ballast.

For achieving the above object, the technical solution of the utility model is as follows: the novel inductive fluorescent lamp ballast, comprise skeleton, one on the skeleton inductance coil, the iron core that silicon steel sheet builds up also is wound with heater winding on the described skeleton.

The iron core that above-mentioned silicon steel sheet builds up can be the MI type, also can be TU type or O type or TL type.

The output of heater winding of the present utility model can serial or parallel connection mode have access in the electric loop of two fluorescent tubes, when the circuit energized, its voltage that provides is added in an end of each fluorescent tube, make fluorescent tube be in heated condition always, guaranteed the operate as normal of two fluorescent tubes.The utility model is simple in structure, produces easily, saves material, and energy-conservation.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is an assembly structure schematic diagram of the present utility model;

Fig. 3 is that the utility model inserts the circuit diagram that uses with series system;

Fig. 4 is that the utility model inserts the circuit diagram that uses with parallel way.

Now the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:

Embodiment

As shown in Figure 1 and Figure 2, the utility model is made up of inductance coil 1, heater winding 2, M sections core 3, I sections core 4, plastic skeleton 5 and end cap 51, insulated compound paper 6, binding post 7 and base plate 8.Its structure assembling process is as follows: on the plastic skeleton 5 respectively around on inductance coil 1 and heater winding 2, the output of inductance coil 1 and heater winding 2 is drawn from the two ends of skeleton respectively, and wrap with insulated compound paper 6, pack into then M sections core 3 and I sections core 4, behind power of lamp tube size adjustment good berth electric current, clinching upper plate 8 is buckled well end cap 51, through operations such as dipping lacquers, fixedly upper connecting terminal 7 gets final product then.

The visible Fig. 3 of electrical schematic diagram, Fig. 4 that the utility model can play the ballast effect to two fluorescent tubes simultaneously.See figure, when the circuit energized, inductance coil 1 energising back produces magnetic field, the magnetic line of force is by MI sections core 3,4 loops, alternating current is added on starter 10 two ends through the filament of ballast and

fluorescent tube

91 and 92, make gas ionization in starter 10 neon bulbs, produce glow discharge, because the thermogenic action of glow discharge, make interior different " U " shape sheet metal of the coefficient of expansion of neon bulb contacted with " I " matrix by hot stretched, starter 10 closed short circuits, be added on the lamp tube ends filament through low-voltage AC after the ballast current limliting, filament pre-heating, meanwhile after starter 10 closures, glow discharge stops, " U " shape sheet metal temperature reduces gradually, cooling, the several seconds back contact disconnects, return to normally open, cut off the power supply of filament, the electric current that disconnection moment ballast coil 1 is passed through sharply reduces, and the self induction electromotive force that ballast itself produces increases suddenly, with act on lamp tube ends after the supply voltage stack, electrode is launched a large amount of electronics, and fluorescent tube is lighted (bright), and heater winding 2 can be the series connection access way with being connected of two fluorescent tubes, it also can be access way in parallel, heater winding 2 is when power connection, and its voltage that provides can make the filament of two tubes be in heated condition always, to guarantee two tubes operate as normal.Because the metering function of ballast, current stabilization by two fluorescent tubes is within the rated current scope, the voltage of lamp tube ends also is stabilized within the rated range, this moment, lamp tube ends voltage was lower than the starting resistor of starter 10, starter 10 can not restarted, and fluorescent tube has been finished the overall process that starts.

Claims

1, novel inductive fluorescent lamp ballast comprises skeleton (5), and one around the last inductance coil (1) of skeleton (5), and the iron core that silicon steel sheet builds up is characterized in that: also be wound with heater winding (2) on the described skeleton (5).

2, novel inductive fluorescent lamp ballast according to claim 1 is characterized in that: the iron core that described silicon steel sheet builds up is MI type or TU type or O type or TL type.