CN2814885Y - Driving device for cold cathode fluorescent lamp - Google Patents
Driving device for cold cathode fluorescent lamp Download PDFInfo
- Publication number
- CN2814885Y CN2814885Y CN 200520014192 CN200520014192U CN2814885Y CN 2814885 Y CN2814885 Y CN 2814885Y CN 200520014192 CN200520014192 CN 200520014192 CN 200520014192 U CN200520014192 U CN 200520014192U CN 2814885 Y CN2814885 Y CN 2814885Y
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a driving device for a cold cathode fluorescent lamp, which comprises a DC/AC converter or an AC/AC converter, a voltage input terminal and high-voltage transformers, wherein an output terminal of the high voltage transformer is connected with an electrode of the cold cathode fluorescence lamp; the high-voltage transformer is composed of at least two small output high-voltage transformers which have low high voltage and small volumes and are mutually connected in series to replace the single high-voltage transformer in the prior art; primary coils of the small output high-voltage transformers which are mutually connected in series are mutually connected in series or in parallel, and secondary coils are mutually connected in series; an output terminal of the DC/AC converter or the AC/AC converter is connected with the first coils of the high-voltage transformers, and the secondary coils of the high-voltage transformers are connected with the electrode of the cold cathode fluorescence lamp. As the high voltage of each small high-voltage transformer is only a part of the high voltage of the single high-voltage transformer, the possibility that the transformer is pierced electrically by spark is greatly reduced, the noise is decreased, the manufacture process is simplified, etc. Thus, the utility model has the characteristics of high reliability, low cost, low noise, low work temperature, long service life, etc.
Description
Technical field
The utility model relates to the drive unit of a kind of drive unit of cold-cathode fluorescence lamp, particularly a kind of large power cold cathode fluorescent lamp; Be used for general lighting, light modulation toning illumination, liquid crystal display back illumination, decorative lamp, bright lamp engineering, advertisement demonstration etc.
Background technology,
The drive unit of the cold-cathode fluorescence lamp of prior art, its last output is a high-tension transformer, and its output voltage is up to extremely several kilovolts of several hectovolts; Voltage difference is very big between the primary and secondary coil of transformer, between each lead of secondary coil and between each wire casing, sparking punctures easily, poor reliability, secondary coil is many because of the number of turns, the line bag is thick, the heat radiation difficult, easy too high damage of the temperature of transformer, and cost of manufacture height, volume is big, and height is easy to generate noise etc.Therefore, high-tension transformer often becomes the key of the driver of large power cold cathode fluorescent lamp and this class high voltage gaseous discharge lamp.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and the drive unit of a kind of reliability height, cost is low, noise is very little cold-cathode fluorescence lamp is provided.It includes a DC/AC or AC/AC converter, a voltage input end, a high tension transformer, the output of high tension transformer is connected with the electrode of cold-cathode fluorescence lamp, described high tension transformer is made of at least two the low high voltages of connecting mutually and the little output high voltage transformer of smaller size smaller, to substitute the single high-tension transformer of prior art; The primary coil of the little output high voltage transformer of series connection is in series or in parallel with each other mutually, its secondary coil is connected mutually, the output of DC/AC or AC/AC converter links to each other with the primary coil of described high tension transformer, and the secondary coil of described high tension transformer links to each other with the electrode of cold-cathode fluorescence lamp.The high pressure of each little output high voltage transformer only is the part of single high-tension transformer, greatly reduce between the primary and secondary coil of transformer, the possibility that sparking punctures between each line layer of secondary coil and between each wire casing, greatly reduce the noise that produces because of high voltage, and can simplify the transformer manufacturing process, reduce the transformer cost, reduce the height and the volume of transformer, also improved the area of dissipation of transformer simultaneously, having reduced line bag thickness dispels the heat in order to the line bag, thereby can reduce the working temperature of transformer, improve the reliability and the working life of transformer.
Described voltage input end is connected to and exchanges or DC power supply.
Described DC/AC or AC/AC converter have light modulation and ager.
The driving method of high voltage gaseous discharge lamp of the present utility model compared with prior art has the reliability height, an advantage such as cost is low, noise is little, good heat dissipation, working temperature are low, long working life, height and volume are little.
Description of drawings:
Fig. 1 is a circuit connection structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, shown in Figure 1, the utility model mainly includes a DC/AC or AC/AC converter 1, high tension transformer 3; External voltage input 2 is arranged on the converter 1, and its input voltage is for exchanging or direct current, and promptly external voltage input 2 is connected to and exchanges or DC power supply, and this input voltage is transformed into the low pressure high-frequency electrical by its output 4 outputs through converter 1; Described high tension transformer 3 is at least two little high-tension transformer 3a that hang down high voltage and smaller size smaller of series connection mutually, the primary coil 5 of described high-tension transformer 3a, be that input coil is in series or in parallel with each other, its secondary coil 5, be output winding then mutually the series connection, the output 4 of converter 1 links to each other with 5 inputs of the primary coil of described high tension transformer 3, and the secondary coil 6 of the mutual series connection of described high-tension transformer 3 links to each other with the electrode 8 of cold-cathode fluorescence lamp 7.Connect external power and can light described cold-cathode fluorescence lamp 7.
Described converter 1 can have light modulation and ager, is used to make light modulation and toning lamp.
Drive unit described in the utility model also can be used for other high voltage gaseous discharge lamp.
Each embodiment that the claimed scope of the utility model is not limited to introduce herein, the know-how that relates to is that the general personnel of this specialty are familiar with, and therefore as long as understand content of the present utility model and characteristic, can do various forms of conversion and replacement.
Claims (3)
1, a kind of drive unit of cold-cathode fluorescence lamp, it includes a DC/AC or AC/AC converter, a voltage input end, a high tension transformer, the output of high tension transformer is connected with the electrode of cold-cathode fluorescence lamp, it is characterized in that described high tension transformer (3) is made of at least two the low high voltages of connecting mutually and the little output high voltage transformer (3a) of smaller size smaller, the primary coil (5) of the little output high voltage transformer (3a) of series connection is in series or in parallel with each other mutually, its secondary coil (6) is series connection mutually, the output (4) of DC/AC or AC/AC converter (1) links to each other with the primary coil (5) of described high tension transformer (3), and the secondary coil (6) of described high tension transformer (3) links to each other with the electrode (8) of cold-cathode fluorescence lamp (7).
2, the drive unit of cold-cathode fluorescence lamp according to claim 1 is characterized in that described voltage input end (2) is connected to interchange or DC power supply.
3, the drive unit of cold-cathode fluorescence lamp according to claim 1 is characterized in that described DC/AC or AC/AC converter (1) have light modulation and ager.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014192 CN2814885Y (en) | 2005-08-18 | 2005-08-18 | Driving device for cold cathode fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014192 CN2814885Y (en) | 2005-08-18 | 2005-08-18 | Driving device for cold cathode fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814885Y true CN2814885Y (en) | 2006-09-06 |
Family
ID=36949972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520014192 Expired - Fee Related CN2814885Y (en) | 2005-08-18 | 2005-08-18 | Driving device for cold cathode fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814885Y (en) |
-
2005
- 2005-08-18 CN CN 200520014192 patent/CN2814885Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU TELIANG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GE SHICHAO Effective date: 20070622 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070622 Address after: Hangzhou City, Zhejiang province 310012 Wensan Road No. 628, room 218 Patentee after: Hangzhou Teliang Technology Co., Ltd. Address before: Two road 310012 Zhejiang city in Hangzhou Province, the Qiuzhi Lane room 2-203 Patentee before: Ge Shichao |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20130818 |