CN2173985Y

CN2173985Y - Short magnetic circuit high-efficiency energy-saving high voltage device for cold cathode gas discharge lamp

Info

Publication number: CN2173985Y
Application number: CN 93242536
Authority: CN
Inventors: 王桁
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-16
Filing date: 1993-10-16
Publication date: 1994-08-10
Anticipated expiration: 2003-10-16

Abstract

The utility model belongs to an energy-economic transformer with a short magnetic circuit of a cold cathode gas discharge lamp. The utility model is mainly composed of a single high-voltage coil which is completely and electrically isolated from a combined laminated core, a magnetic shunt block for controlling starting and stabilizing voltage, an adjusting sheet, a low-voltage coil, etc. Due to the adoption of the novel structures such as a shortened main magnetic circuit, etc., the electromagnetic loss of the transformer body of the utility model is greatly reduced, the metal consumption is reduced by 1/3, the entire volume is reduced by about 1/3, the power factor is raised to not less that 0.8, and the temperature rise and the operating safety index are all correspondingly raised. The energy-economic transformer of the utility model is especially suitable for driving neon lamps.

Description

Short magnetic circuit high-efficiency energy-saving high voltage device for cold cathode gas discharge lamp

The utility model belongs to the high-performance energy-saving transformer that the cold-cathode gas discharge lamp is used, and is specially adapted to drive neon light.

At present, the most representative traditional cold cathode gas discharge lamp transformer is the leakage transformer with four branch magnetic circuits, and its main magnetic circuit is long partially, and the electromagnetism consume is big, conversion efficiency less than 50%.In addition, three high-tension coils of this transformer adopting are connected through iron core, cause iron core band high-voltage, and when one of them high-tension coil damage, iron core promptly forms the high-tension electricity potential difference over the ground, is absolutely unsafe.In addition, volume of transformer is big, heavy, consumes iron, copper material is many.

Task of the present utility model is that a kind of energy consumption of design is low, in light weight, the short magnetic circuit high-performance energy-saving transformer (calling transformer in the following text) of cold-cathode gas discharge that iron core is charged, unsafe.

Solution is to adopt single high-tension coil, selects the best length of magnetic path for use, shortens window size; Adopt a pair of minute magnetic circuit; High-tension coil seals admittedly with polymer binder; Iron core is staggered superimposed with strip piece.

The utility model transformer has following accompanying drawing:

Fig. 1 is the utility model transformer electromagnetic structure figure;

Fig. 2 is the utility model transformer high-voltage coil structure chart;

Fig. 3 is the utility model transformer combination iron core strip piece lamination figure;

Fig. 4 is the utility model transformer case high-low pressure lead-out wire and handle position figure.

In conjunction with the accompanying drawings the utility model transformer is described in detail:

An embodiment of the utility model transformer as shown in Figure 1.Transformer mainly is made of high-tension coil 1, combination laminated core 2, low-voltage coil 3, adjustment sheet 4 and magnetic shunt piece 5 etc., on high-tension coil 1, low-voltage coil 3 each 1 insulation framework that are wound in respectively separately and place on the combination laminated core 2, be equipped with adjustment sheet 4 and magnetic shunt piece 5 between high-tension coil 1 and the low-voltage coil 3.Combination laminated core 2 forms main magnetic circuit and a pair of minute magnetic circuit, and constitutes by the sheet type permeability magnetic material of high permeability, high-magnetodensity.Low pressure winding 3 produces main flux, makes the high-tension electricity of high pressure winding 1 induction gas discharge lamp through main magnetic circuit.Main magnetic circuit is also realized automatic regulation voltage rate of change by magnetic shunt piece 5, and adjustment sheet 4 is used for adjusting and starts and voltage stabilizing function.

The structure of the utility model transformer high-voltage coil 1 as shown in Figure 2.High-tension coil 1 is wound in high insulating property skeleton 7 isolates with combination laminated core 2, and skeleton uses flame-proof ABS to make in the utility model.High pressure pitch of the laps both ends of the surface are respectively poured into a mould the certain thickness polymer binder insulating barrier 6 of one deck.

The lamination compound mode of the utility model transformer main magnetic circuit combination laminated core 2 as shown in Figure 3.Each layer compounded plate combined by the strip piece of monolithic, and the adjacent two layers sheet is staggered superimposed, and every layer of compounded plate is made of A, B, four kinds of sizes of C, D, and B, C, D strip piece be wide, and to be about A wide by 1/2.

The utility model transformer high and low pressure is drawn terminal and is settled as shown in Figure 4.Handle 8 and low pressure are drawn the same side that terminal 9 places shell 11, and high pressure is drawn the another side that terminal 10 places shell 11, the two high pressure lead-out wire posts 10 suitable distance of being separated by.

The advantage of the utility model transformer is to reduce the consumption of ferromagnetic material and copper material to greatest extent, reduced volume, and compact conformation has improved power factor, and the iron core shell is not with high-voltage.The similar transformer with tradition of present embodiment is compared, ferromagnetic material reduces 1/2, copper material reduces 1/3, overall dimensions dwindle about 1/3, it is about 1/2 that power consumption reduces, and power factor brings up to 〉=0.8, and no-load loss drops to and is lower than 16% rated value, high pressure resistantly bring up to 1.5 times, temperature rise and security of operation index all have corresponding raising.

Claims

1, a kind of short magnetic circuit energy-economic transformer (calling transformer in the following text) that belongs to the cold-cathode gas discharge lamp, mainly constitute by combination laminated core, magnetic shunt piece, adjustment sheet, high-tension coil, low-voltage coil etc., it is characterized in that: high-tension coil, each 1 of low-voltage coil are wound in insulation framework separately respectively and place on the combination laminated core, are equipped with adjustment sheet and magnetic shunt piece between high-tension coil and the low-voltage coil; The both ends of the surface of high-tension coil are sealed admittedly with adhesive, realize that with iron core effectively electricity is isolated; Adopt a pair of minute magnetic circuit, to shorten main magnetic circuit length; The combination laminated core is staggeredly stacked with the strip piece combination; High pressure is drawn terminal and low pressure and is drawn terminal and set up side, two ends at shell separately, and low pressure draws terminal and handle is in homonymy.

2,, it is characterized in that described adhesive is a polymer binder according to the transformer of claim 1.

3,, it is characterized in that making up laminated core (1) high permeability, high-magnetodensity, sheet type permeability magnetic material according to the transformer of claim 1.