CN201061083Y - Ignition transformer - Google Patents
Ignition transformer Download PDFInfo
- Publication number
- CN201061083Y CN201061083Y CNU2007200856154U CN200720085615U CN201061083Y CN 201061083 Y CN201061083 Y CN 201061083Y CN U2007200856154 U CNU2007200856154 U CN U2007200856154U CN 200720085615 U CN200720085615 U CN 200720085615U CN 201061083 Y CN201061083 Y CN 201061083Y
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- circuit
- ignition transformer
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Abstract
The utility model relates to an ignition transformer, which comprises a power supply, an oscillator, a boost circuit and a rectifier circuit; wherein, the oscillator is used for performing high frequency oscillation on the input DC and is connected with the power supply; the boost circuit is used to boost the voltage output by the oscillator and is connected with the oscillator; the rectifier circuit is intended for rectifying the current and generating a DC high voltage and connected with the boost circuit. The utility model has the advantages of preventing the damage to devices due to unexpected short circuit of the electrode during mounting by adding a short circuit protective circuit, and avoiding the ignition of the internal coils of the transformer by adding a open circuit protective circuit; therefore, the utility model is applicable to industrial furnaces such as a heat preservation pit furnace.
Description
Technical field
The utility model relates to a kind of automation field, relates in particular to a kind of ignition transformer that has installed short-circuit protection circuit and/or open loop protection circuit additional.
Background technology
Holding pit in the iron and steel enterprise all adopts manual firing's mode at present.When holding pit need be lighted a fire production, just cooperate igniting by two workmans, wherein open the combustion gas main valve for one, another stretches into from a flame-observing hole above the main burner with torch it is lighted.This mode one is the manipulation strength that has strengthened the workman, the 2nd, and when furnace atmosphere was not clear, danger coefficient was big.
At the holding furnace production period, when the low grade of gas pressure abnormal cause makes fray-out of flame, because of the flame combustion situation in the no monitoring of tools stove can not the automatic self-closing gas valve, thereby cause lighting a fire once more or blast when meeting naked light, become the major safety risks that holding pit is produced.
At the problems referred to above, produced existing igniting and flame monitoring system automatically, but in this system, when having medium such as iron filings to cause electric pole short circuit when ignitor two interpolars, short circuit will occur and burn ignition transformer.Just be equivalent to the standard-sized sheet road when the distance of ignitor surpasses 6mm, will cause the sparking of transformer Inside coil like this, make its damage.Anyly can not avoid short circuit to cause components from being damaged and adopt in the existing ignition transformer, prevent to open a way and burn the means of ignition transformer.
The utility model content
The purpose of this utility model is the defective that exists at prior art, the ignition transformer that provides a kind of electronics harmonic oscillation that comprises open loop protection circuit and short-circuit protection circuit to boost.
For achieving the above object, the utility model provides ignition transformer.This ignition transformer comprises: power supply; Be used for the direct voltage of input is carried out the oscillator of the higher-order of oscillation, be connected with described power supply; Be used for the booster circuit that the voltage to oscillator output boosts, be connected with described oscillator; Be used for the rectification circuit that rectification produces dc high voltage, be connected with oscillator with described booster circuit.
Ignition transformer also comprises: short-circuit protection circuit, be connected with described rectification circuit, and be used to carry out short-circuit protection.
Ignition transformer also comprises: open loop protection circuit is connected between described short-circuit protection circuit and the booster circuit.
Ignition transformer also comprises: display circuit, be connected between described power supply and the booster circuit, and form in parallelly with described oscillator, be used to show the operating state of described ignition transformer.
Ignition transformer also comprises: be used for the dc high voltage of output is carried out amplitude limit control, and with the amplitude limiter circuit that Voltage Feedback behind the amplitude limit is given booster circuit, be connected between described short-circuit protection circuit and the booster circuit.
The described booster circuit of ignition transformer adopts ferrite transformer to boost.
Therefore; the utility model has installed short-circuit protection circuit additional and accidentally electric pole short circuit has been caused components from being damaged when avoiding installing; and when having installed open loop protection circuit additional and avoiding distance between ignitor the two poles of the earth to surpass 6mm being equivalent to the standard-sized sheet road; cause the sparking of transformer Inside coil, make its damage.
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model ignition transformer embodiment 1.
Fig. 2 is the structural representation of the utility model ignition transformer embodiment 2.
Fig. 3 is the structural representation of the utility model ignition transformer embodiment 3.
Fig. 4 is the structural representation of the utility model ignition transformer embodiment 4.
Embodiment
Ignition transformer 30 is mainly being undertaken the high voltage arc function in igniting and the flame detection system automatically.The utility model adopts electronics harmonic oscillation as boosting the source, and is provided with insulation blocking, short-circuit protection circuit, makes that it is in light weight, simple installation, long service life, igniting be safe and reliable.
Ignition transformer is made up of the electronics resolution element, and it is controlled by automatic ignition device in system.As shown in Figure 1, the electrical block diagram of the utility model ignition transformer 30 embodiment 1; This ignition transformer 30 comprises: power supply 300 output dc voltages, and oscillator 301 is connected with power supply, is used for the direct voltage of input is carried out higher-order of oscillation output electronics harmonic oscillation voltage; Booster circuit 302 is connected with described oscillator 301, is used for the electronics harmonic oscillation voltage of oscillator output is boosted; Rectification circuit 303 is connected with oscillator 301 with described booster circuit 302, is used for rectification and produces dc high voltage, and rectification circuit 303 returns to oscillator 301 with low-voltage and carries out the higher-order of oscillation again.
Owing to cause electric pole short circuit when medium such as iron filings is arranged when ignitor two interpolars easily; burn ignition transformer in order to prevent short circuit; as shown in Figure 2; the utility model ignition transformer 30 embodiment 2 comprise further: short-circuit protection circuit 304; be connected with described rectification circuit 303, be used to carry out short-circuit protection.
Owing to when the distance at ignitor the two poles of the earth just is equivalent to the standard-sized sheet road above 6mm, will cause the sparking of transformer Inside coil like this, make its damage.Therefore the utility model ignition transformer 30 embodiment 3 as shown in Figure 3 comprise that further open loop protection circuit 307 is connected between booster circuit 302 and the short-circuit protection circuit 304, ignitor are discharged, from making the protection ignition transformer.
As shown in Figure 4; the utility model ignition transformer 30 embodiment 4 also comprise: amplitude limiter circuit 305; be connected between described short-circuit protection circuit 304 and the booster circuit 302, be used for the dc high voltage of output is carried out amplitude limit control, and give booster circuit Voltage Feedback behind the amplitude limit.Further as shown in the figure, this also comprises signal display circuit 306, is connected between power supply 300 and the booster circuit 302, form in parallel with pierce circuit, be used to show the transformer operate as normal, will be convenient to execute-in-place workman operational observations intuitively like this, and make product have versatility.
The ignition transformer power unit adopts the transformer step-down; diode rectification; after filtering, become the direct voltage of 6V; oscillating circuit partly adopts elements such as high-power switch tube, resistance, electric capacity, inductance to realize the higher-order of oscillation; booster circuit partly adopts high frequency (ferrite) transformer to boost; rectification produces dc high voltage once more, accidentally electric pole short circuit is caused components from being damaged when avoiding installing, and ignition transformer has installed short-circuit protection circuit and open loop protection circuit additional.By this ignition transformer can with the voltage of the 220v of input through the higher-order of oscillation, boost and rectification produces the dc high voltage of 7500V, form 7500 volts of high voltage short circuits and open loop protection circuit like this.
Therefore, the utility model ignition voltage device has been realized electronics harmonic oscillation voltage as the source of boosting, and accidentally electric pole short circuit is caused components from being damaged when having avoided installation, and the distance at ignitor the two poles of the earth causes the sparking of transformer Inside coil when surpassing 6mm and being equivalent to the standard-sized sheet road.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. ignition transformer is characterized in that comprising:
Power supply;
Be used for the direct voltage of input is carried out the oscillator of the higher-order of oscillation, be connected with described power supply;
Be used for the booster circuit that the voltage to oscillator output boosts, be connected with described oscillator;
Be used for the rectification circuit that rectification produces dc high voltage, be connected with oscillator with described booster circuit.
2. ignition transformer according to claim 1 is characterized in that also comprising: short-circuit protection circuit is connected with described rectification circuit.
3. ignition transformer according to claim 2 is characterized in that also comprising: open loop protection circuit is connected between described short-circuit protection circuit and the booster circuit.
4. ignition transformer according to claim 3 is characterized in that also comprising: display circuit is connected between described power supply and the booster circuit.
5. ignition transformer according to claim 4; it is characterized in that also comprising: be used for the dc high voltage of output is carried out amplitude limit control; and, be connected between described short-circuit protection circuit and the booster circuit the amplitude limiter circuit that Voltage Feedback behind the amplitude limit is given booster circuit.
6. according to any described ignition transformer of claim 1-5, it is characterized in that described booster circuit adopts ferrite transformer to boost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200856154U CN201061083Y (en) | 2007-06-29 | 2007-06-29 | Ignition transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200856154U CN201061083Y (en) | 2007-06-29 | 2007-06-29 | Ignition transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201061083Y true CN201061083Y (en) | 2008-05-14 |
Family
ID=39409573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200856154U Expired - Fee Related CN201061083Y (en) | 2007-06-29 | 2007-06-29 | Ignition transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201061083Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376602A (en) * | 2018-03-30 | 2018-08-07 | 吴江市华安电器有限公司 | A kind of ignition transformer |
-
2007
- 2007-06-29 CN CNU2007200856154U patent/CN201061083Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376602A (en) * | 2018-03-30 | 2018-08-07 | 吴江市华安电器有限公司 | A kind of ignition transformer |
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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: 20080514 Termination date: 20130629 |