CN201850213U - Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln - Google Patents
Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln Download PDFInfo
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- CN201850213U CN201850213U CN2010205457947U CN201020545794U CN201850213U CN 201850213 U CN201850213 U CN 201850213U CN 2010205457947 U CN2010205457947 U CN 2010205457947U CN 201020545794 U CN201020545794 U CN 201020545794U CN 201850213 U CN201850213 U CN 201850213U
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Abstract
The utility model discloses an electric melting tin oxide electrode heating control device of a TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln, which is characterized by comprising a master control board, a control interface of the master control board is respectively connected with a three phase rectifying unit, an inversion unit and an isolation transformation unit, wherein the input of the three phase rectifying unit is connected with a three phase utility power and the output is connected with the input of the inversion unit; the output of the inversion unit is connected with the input of the isolation transformation unit; and the output of the isolation transformation unit is connected on a tin oxide electrode. The device can control the electric melting electrode to realize uninterrupted operation to carry out heating in the situation of supplying power by the three phase utility power. The harmonic content THD (Total Harmonic Distortion) of an output control power supply is less than 5%, and a power factor is higher than 0.95. The heating control power supply output to the electrode is a standard sine wave power supply, which has a small impact on the current of the electrode and is beneficial to prolonging the service life of the electrode.
Description
Technical field
The utility model relates to a kind of glass furnace electric smelting control device, the heating control apparatus of particularly a kind of TFT-LCD (Thin Film Transistor-LCD) glass furnace electric smelting tin oxide electrode.
Background technology
TFT-LCD glass furnace electric smelting components of system as directed has been used tin oxide electrode, and electric smelting control device great majority adopt the control device of " single-phase power regulating eqiupment+transformer " at present.This control device has the following disadvantages: 1. adopt single phase power supply to cause the power supply three-phase imbalance easily; 2. because power regulating eqiupment adopt to change the conduction angle mode works, what output to electrode adds thermal control supply harmonic content height, and power factor (PF) is low, the operation of miscellaneous equipment is produced disturb; 3. in order to guarantee that the stable tin oxide electrode that reaches of kiln operation process normally moves, power supply needs to adopt the UPS mode power the power supply cost height.4. to be the non-sinusoidal wave power supply big to the tin oxide electrode rush of current, influence electrode life for out-put supply.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing in prior technology problem, and a kind of heating control apparatus of new TFT-LCD glass furnace electric smelting tin oxide electrode is provided.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of TFT-LCD glass furnace electric smelting tin oxide electrode heating control apparatus, comprise a master control board, its control interface connects a three phase rectifier unit, an inversion unit and an isolation voltage transformation unit respectively, the unitary input of three phase rectifier connects the three-phase mains, output connects the input of inversion unit, the output of inversion unit connects the input of isolating voltage transformation unit, and the output of isolating voltage transformation unit is connected on the tin oxide electrode.
In the such scheme, the input of described inversion unit also is connected with series of cells.Described master control board is connected with human and machine interface unit.
The utility model has the advantages that this control device adopts 3 phase mains-supplied, input three-phase current unbalance rate can not cause power supply three-phase imbalance phenomenon less than 2%; The control power supply that outputs on the tin oxide electrode is the standard sine wave power supply, and electrode current impacts little, and harmonic content is low, can not produce and disturb the miscellaneous equipment operation, and the power factor (PF) height, can reach more than 0.95; Further, this device can adopt mains-supplied and two kinds of array modes of online series of cells reserve power supply, does not need special UPS power supply, and power supply cost is low.
Description of drawings
Fig. 1 is the utility model composition frame chart.
Among the figure: 1. master control board; 2. three phase rectifier unit; 3. inversion unit; 4. isolate voltage transformation unit; 5. series of cells; 6. human and machine interface unit.
Embodiment
Be described in further detail below in conjunction with 1 pair of heating unit of the present utility model of accompanying drawing.
As shown in Figure 1, a kind of TFL-LCD glass furnace electric smelting tin oxide electrode heating control apparatus, comprise that 1. one have human and machine interface unit master control board 6., its control interface connect respectively a three phase rectifier unit 2., 4. 3. inversion unit isolate voltage transformation unit with one, the unitary input of three phase rectifier connects the three-phase mains, output connects the input of inversion unit, and the output of inversion unit connects the input of isolating voltage transformation unit, and the output of isolating voltage transformation unit is connected on the tin oxide electrode.Wherein the input of inversion unit also is connected with series of cells.
The utility model principle of work is:
2. the three-phase mains power supply becomes the single loop direct supply after the rectification by the three phase rectifier unit; 3. the single loop direct supply becomes the single-phase AC power source of sine wave that frequency 50HZ amplitude changes according to technology controlling and process after the conversion through inversion unit; 3. the single-phase 50HZ AC power source of sine wave of exporting from inversion unit becomes isolated single-phase 50HZ AC power source of sine wave after 4. voltage transformation unit is changed and outputs on the tin oxide electrode through isolating, and has formed the single-phase heating circuit power supply of tin oxide electrode.
When series of cells when 5. voltage is low, 2. 5. the effusive direct supply of rectification charges for series of cells from the three phase rectifier unit;
When power failure was imported in the three phase rectifier unit 2., 3. series of cells powered 5. for inversion unit.
Master control board 1. with data such as 6. communication acquisition peripheral operation of man-machine interface, technology adjustment, parameter designing, transmission control device running status etc.; Gather the three phase rectifier unit 2., inversion unit 3., isolate voltage transformation unit 4., 5. status signal of battery assembly module, to inversion unit 3., 5. series of cells send out steering order; Realize 5. intelligent recharge and discharge of series of cells, this device still can the uninterrupted normal heating of controlled oxidation tin electrode move when the short period of time of externally powering had a power failure; Realized that simultaneously control device outputs to tin oxide electrode control power supply and reaches constant voltage/continuous current/permanent control function of power.
Claims (3)
1. TFT-LCD glass furnace electric smelting tin oxide electrode heating control apparatus, it is characterized in that, comprise a master control board, its control interface connects a three phase rectifier unit, an inversion unit and an isolation voltage transformation unit respectively, the unitary input of three phase rectifier connects the three-phase mains, output connects the input of inversion unit, and the output of inversion unit connects the input of isolating voltage transformation unit, and the output of isolating voltage transformation unit is connected on the tin oxide electrode.
2. TFT-LCD glass furnace electric smelting tin oxide electrode heating control apparatus as claimed in claim 1 is characterized in that the input of described inversion unit also is connected with series of cells.
3. TFT-LCD glass furnace electric smelting tin oxide electrode heating control apparatus as claimed in claim 1 is characterized in that described master control board is connected with human and machine interface unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205457947U CN201850213U (en) | 2010-09-28 | 2010-09-28 | Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205457947U CN201850213U (en) | 2010-09-28 | 2010-09-28 | Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201850213U true CN201850213U (en) | 2011-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205457947U Expired - Lifetime CN201850213U (en) | 2010-09-28 | 2010-09-28 | Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201850213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011553A (en) * | 2012-12-13 | 2013-04-03 | 陕西彩虹电子玻璃有限公司 | Control method for electric melting furnace based on phase-locking controller |
| CN114890655A (en) * | 2022-04-27 | 2022-08-12 | 陕西彩虹工业智能科技有限公司 | Electric boosting power supply system for flexible glass kiln |
-
2010
- 2010-09-28 CN CN2010205457947U patent/CN201850213U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011553A (en) * | 2012-12-13 | 2013-04-03 | 陕西彩虹电子玻璃有限公司 | Control method for electric melting furnace based on phase-locking controller |
| CN114890655A (en) * | 2022-04-27 | 2022-08-12 | 陕西彩虹工业智能科技有限公司 | Electric boosting power supply system for flexible glass kiln |
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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: IRICO, LTD. Free format text: FORMER OWNER: CAIHONG GROUP CO Effective date: 20150520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150520 Address after: 712021 Rainbow Road, Shaanxi, Xianyang, No. 1 Patentee after: IRICO, Ltd. Address before: 712021 Rainbow Road, Shaanxi, Xianyang, No. 1 Patentee before: IRICO Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |