CN2724161Y - Air gap transformer using liquid crystal back light source driver - Google Patents
Air gap transformer using liquid crystal back light source driver Download PDFInfo
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- CN2724161Y CN2724161Y CN 200420084665 CN200420084665U CN2724161Y CN 2724161 Y CN2724161 Y CN 2724161Y CN 200420084665 CN200420084665 CN 200420084665 CN 200420084665 U CN200420084665 U CN 200420084665U CN 2724161 Y CN2724161 Y CN 2724161Y
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- iron core
- air
- spiral pedestal
- air gap
- gap
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Abstract
The utility model discloses an air gap transformer used for a liquid crystal backlight source drivers, comprising a coiling base, an iron core and wires. Baffles are arranged outside the coiling base, and wires in different properties are wound between the baffles. Moreover, the hollow structure part of the coiling base is provided for containing the iron core. In addition, an air gap is reserved between the coiling base and the iron core by the structure design of the coiling base. The transformer of the structure design not only can improve the pressure-proof characteristic of the transformer, but also has the advantages of long service life, low cost, small transformer size and installation space economizing.
Description
Technical field
The utility model relates to a kind of air gap transformator that is used in the LCD backlight Source drive, particularly relates to a kind of structural design by the spiral pedestal, makes and leaves an air-gap between spiral pedestal and iron core, and then improve the withstand voltage air gap transformator of transformer.
Background technology
See also Fig. 1, for tradition is used in the cross section view of the transformer of LCD backlight Source drive, by among the figure as can be known, commonly use transformer 1, by spiral pedestal 11, unshakable in one's determination 12 and wire rod 13 formed; Spiral pedestal 11 outer setting have dividing plate 111, but and in 111 windings of dividing plate wire rod 13 of different nature, and spiral pedestal 11 hollow structure parts, can be placed in wherein for unshakable in one's determination 12, and spiral pedestal 11 engages with the plane with 12 unshakable in one's determination, but owing to can't accomplish complete plane engagement, so the air gap on composition surface 14 is very little and unequal; General air gap withstand voltage when 0.003～0.02mm has been lower than below the 300V, and as shown in table 1, therefore when voltage is more and more high, winding section branch discharges to iron core, and air is caused product to take place unusually by free and arc light takes place.
Table 1: the relation of air breakdown voltage and distance
| Distance (mm) | Breakdown voltage (Vrms) |
| 1 | 3000 |
| 0.5 | 2000 |
| 0.35 | 1500 |
| 0.2 | 1000 |
| 0.02 | 300 |
| 0.01 | 250 |
| 0.003 | 300 |
This shows that the above-mentioned transformer of commonly using still has many disappearances, real non-one kindhearted designer, and demand urgently being improved.
The innovation and creation content
The purpose of this utility model provides a kind of withstand voltage air gap transformator that is used in the LCD backlight Source drive that improves transformer.
For achieving the above object, the utility model is taked following technical scheme: a kind of air gap transformator that is used in the LCD backlight Source drive includes spiral pedestal, iron core and wire rod; This spiral pedestal outer setting has dividing plate, and between dividing plate winding wire rod of different nature, and this spiral pedestal hollow structure part can be placed in wherein for iron core, and the structural design by the spiral pedestal, makes and leaves an air-gap between spiral pedestal and iron core.
In the above-mentioned air gap transformator that is used in the LCD backlight Source drive, the air-gap between described spiral pedestal and iron core is a microscler air-gap.
In the above-mentioned air gap transformator that is used in the LCD backlight Source drive, described spiral pedestal is arranged to the two-part hollow structure, and this hollow structure front end is narrower, and the rear end broad, and can be placed in wherein for iron core, cause and leave the different air-gap of two segment distances between spiral pedestal and iron core.
In the above-mentioned air gap transformator that is used in the LCD backlight Source drive, described spiral pedestal is arranged to the both ends hollow structure, this hollow structure both ends broad, and the stage casing part is narrower, and can be placed in wherein for iron core, cause and leave both ends and the middle different air-gap of segment distance between spiral pedestal and iron core.
In the above-mentioned air gap transformator that is used in the LCD backlight Source drive, described spiral pedestal can be arranged to stepped hollow structure, this hollow structure is presented stepped in regular turn to the rear end by front end, and can be placed in wherein for iron core, causes and leaves stair-stepping air-gap between spiral pedestal and iron core.
In the above-mentioned air gap transformator that is used in the LCD backlight Source drive, described spiral pedestal is provided with a notching construction, and this notching construction is separated winding terminal and the iron core that is placed in central authorities with air-gap.
The utility model is owing to take above design, and it has the following advantages:
1, the utility model is used in the air gap transformator of LCD backlight Source drive, under identical withstand voltage condition, can effectively save the consumption and the cost of spiral pedestal and coiling material.
2, the utility model is used in the air gap transformator of LCD backlight Source drive, is commonly using under the size condition, can produce withstand voltage higher transformer.
3, the utility model is used in the air gap transformator of LCD backlight Source drive, have improve transformer withstand voltage, increase the service life, reduce product cost, dwindle the transformer size and saving is provided with advantages such as space.
Description of drawings
Fig. 1 is used in the cross section view of the transformer of LCD backlight Source drive for tradition;
Fig. 2 is used in the first embodiment cross section view of the air gap transformator of LCD backlight Source drive for the utility model;
Fig. 3 is used in the second embodiment cross section view of the air gap transformator of LCD backlight Source drive for this;
Fig. 4 is used in the 3rd embodiment cross section view of the air gap transformator of LCD backlight Source drive for this;
Fig. 5 is used in the 4th embodiment cross section view of the air gap transformator of LCD backlight Source drive for this; And
Fig. 6 is used in the 5th embodiment cross section view of the air gap transformator of LCD backlight Source drive for this;
Fig. 7 is spiral pedestal and decomposing schematic representation unshakable in one's determination;
Fig. 8 is for being inserted in iron core the schematic perspective view (semi-finished product) of spiral pedestal.
Embodiment
See also Fig. 2, be the first embodiment cross section view that is used in the air gap transformator of LCD backlight Source drive provided by the utility model, by among the figure as can be known, the utility model air gap transformator 2, by spiral pedestal 21, unshakable in one's determination 22 and wire rod 23 formed; Spiral pedestal 21 outer setting have dividing plate 211, but and in 211 windings of dividing plate wire rod 23 of different nature, and spiral pedestal 21 hollow structure parts, can be placed in wherein for unshakable in one's determination 22, and leave a microscler air-gap 24, and then form one and can improve withstand voltage air gap transformator 2 in spiral pedestal 21 and 22 unshakable in one's determination.
See also Fig. 3, be the second embodiment cross section view that is used in the air gap transformator of LCD backlight Source drive provided by the utility model, by among the figure as can be known, the utility model air gap transformator 3, by spiral pedestal 31, unshakable in one's determination 32 and wire rod 33 formed; Spiral pedestal 31 outer setting have dividing plate 311, but and in 311 windings of dividing plate wire rod 33 of different nature, and spiral pedestal 31 is designed to the two-part hollow structure, this hollow structure front end is narrower, and the rear end broad, and can be placed in wherein for unshakable in one's determination 32, cause spiral pedestal 31 and 32 unshakable in one's determination to leave the different air-gap of two segment distances 34,35, and then form one and can improve withstand voltage air gap transformator 3.
See also Fig. 4, be the 3rd embodiment cross section view that is used in the air gap transformator of LCD backlight Source drive provided by the utility model, by among the figure as can be known, the utility model air gap transformator 4, by spiral pedestal 41, unshakable in one's determination 42 and wire rod 43 formed; Spiral pedestal 41 outer setting have dividing plate 411, but and in 411 windings of dividing plate wire rod 43 of different nature, and spiral pedestal 41 is to be designed to the both ends hollow structure, this hollow structure both ends broad, and the stage casing part is narrower, and can be placed in wherein for iron core 42, causes spiral pedestal 41 and 42 of iron cores to leave both ends and the middle different air-gap 44 of segment distance, 45, and then form one and can improve withstand voltage air gap transformator 4.
See also Fig. 5, be the 4th embodiment cross section view that is used in the air gap transformator of LCD backlight Source drive provided by the utility model, by among the figure as can be known, the utility model air gap transformator 5, by spiral pedestal 51, unshakable in one's determination 52 and wire rod 53 formed; Spiral pedestal 51 outer setting have dividing plate 511, but and in 511 windings of dividing plate wire rod 53 of different nature, and spiral pedestal 51 is designed to stepped hollow structure, this hollow structure presents stepped by front end in regular turn to the rear end, and can be placed in wherein for unshakable in one's determination 52, cause spiral pedestal 51 and 52 unshakable in one's determination to leave stair-stepping air-gap 54, and then form one and can improve withstand voltage air gap transformator 5.
See also Fig. 6, be the 5th embodiment cross section view that is used in the air gap transformator of LCD backlight Source drive provided by the utility model, by among the figure as can be known, the utility model air gap transformator 6, by spiral pedestal 61, unshakable in one's determination 62 and wire rod 63 formed; Spiral pedestal 61 outer setting have dividing plate 611, but and in 611 windings of dividing plate wire rod 63 of different nature, and spiral pedestal 61 is provided with a notching construction, this notching construction can be separated winding terminal and the iron core 62 that be placed in central authorities with air-gap 64, and then forms one and can improve withstand voltage air gap transformator 6.
Consult Fig. 7, shown in Figure 8 at last, wherein Fig. 7 has disclosed the state that the spiral pedestal separates with iron core, and Fig. 8 has then disclosed the state that iron core is inserted in the spiral pedestal.
By using the utility model, traditional spiral base thickness 0.9mm, the specification of breakdown voltage 1200Vrms, the utility model only needs with spiral base thickness 0.3mm, and the air-gap of 0.2mm in the cooperation can reach the breakdown voltage of identical 1200Vrms; Therefore under identical withstand voltage condition, the utility model can effectively be saved the consumption and the cost of spiral pedestal and coiling material; Otherwise if to commonly use size condition, the utility model can be produced withstand voltage higher transformer.
The above only is a preferable possible embodiments of the present utility model, so the equivalence of being done according to the utility model claim scope changes such as, ought to be included within the protection range of the present utility model.
Claims (6)
1, a kind of air gap transformator that is used in the LCD backlight Source drive includes spiral pedestal, iron core and wire rod; This spiral pedestal outer setting has dividing plate, and between dividing plate winding wire rod of different nature, and this spiral pedestal hollow structure part can be placed in wherein for iron core, it is characterized in that: leave an air-gap between this spiral pedestal and iron core.
2, the air gap transformator that is used in the LCD backlight Source drive according to claim 1 is characterized in that: the air-gap between described spiral pedestal and iron core is a microscler air-gap.
3, the air gap transformator that is used in the LCD backlight Source drive according to claim 1, it is characterized in that: described spiral pedestal is arranged to the two-part hollow structure, this hollow structure front end is narrower, and the rear end broad, and can be placed in wherein for iron core, cause and leave the different air-gap of two segment distances between spiral pedestal and iron core.
4, the air gap transformator that is used in the LCD backlight Source drive according to claim 1, it is characterized in that: described spiral pedestal is arranged to the both ends hollow structure, this hollow structure both ends broad, and the stage casing part is narrower, and can be placed in wherein for iron core, cause and leave both ends and the middle different air-gap of segment distance between spiral pedestal and iron core.
5, the air gap transformator that is used in the LCD backlight Source drive according to claim 1, it is characterized in that: described spiral pedestal can be arranged to stepped hollow structure, this hollow structure presents stepped by front end in regular turn to the rear end, and can be placed in wherein for iron core, cause and leave stair-stepping air-gap between spiral pedestal and iron core.
6, the air gap transformator that is used in the LCD backlight Source drive according to claim 1 is characterized in that: described spiral pedestal is provided with a notching construction, and this notching construction is separated winding terminal and the iron core that is placed in central authorities with air-gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084665 CN2724161Y (en) | 2004-08-03 | 2004-08-03 | Air gap transformer using liquid crystal back light source driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084665 CN2724161Y (en) | 2004-08-03 | 2004-08-03 | Air gap transformer using liquid crystal back light source driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2724161Y true CN2724161Y (en) | 2005-09-07 |
Family
ID=35037784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084665 Expired - Fee Related CN2724161Y (en) | 2004-08-03 | 2004-08-03 | Air gap transformer using liquid crystal back light source driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2724161Y (en) |
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2004
- 2004-08-03 CN CN 200420084665 patent/CN2724161Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20130803 |