CN105423339A - Pulse ignition control circuit and gas stove - Google Patents
Pulse ignition control circuit and gas stove Download PDFInfo
- Publication number
- CN105423339A CN105423339A CN201510982093.7A CN201510982093A CN105423339A CN 105423339 A CN105423339 A CN 105423339A CN 201510982093 A CN201510982093 A CN 201510982093A CN 105423339 A CN105423339 A CN 105423339A
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- coil
- triode
- electric capacity
- switching tube
- control circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Cookers (AREA)
Abstract
The invention discloses a pulse ignition control circuit which comprises a switch tube, a first capacitor, a switch button, a first resistor, a first coil, a second coil and a control module, wherein the switch tube comprises a first terminal, a second terminal and a control terminal used for controlling the connection state of the first terminal and the second terminal, the control terminal is connected with the positive pole of the first capacitor, the positive pole of the first capacitor is connected with that of a preset power supply through the switch button, the first terminal is connected with the control module through the first coil, and the second terminal is connected with an earth terminal; the negative pole of the first capacitor is connected with that of the preset power supply to form the earth terminal; one end of the first resistor is connected with the control terminal and the other end of the first resistor is connected with the earth terminal; one end of the first coil is connected with the earth terminal, the other end of the first coil is connected with the control module, and the first coil is in coupling connection with the second coil; and the control module is used for controlling the two ends of the second coil to generate oscillating voltage when the first terminal and the second terminal of the switch tube are connected with each other. The invention further discloses a gas stove.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly relate to a kind of pulse firing control circuit and gas-cooker.
Background technology
As everyone knows, in existing gas-cooker, be typically provided with two burners in left and right, each burner correspondence is provided with a pulse firing control circuit.Traditional pulse ignition circuit, for controlling the colelctor electrode of the triode producing oscillating voltage usually by coil ground connection, arranges storage capacitor in the base stage of triode and realizes delayed firing operation.But after rotary switch unclamps, because storage capacitor needs through this coil discharge, thus make electric discharge there is time delay, if do not discharge completely in situation at storage capacitor, when the rotary switch of side is pressed and is carried out ignition operation in addition, have an impact because the coil in another pulse firing control circuit carries out the voltage vibrated to whole earth terminal, the triode be connected with storage capacitor may be caused conducting again, the pulse firing control circuit that the rotary switch unclamped before making is corresponding produces oscillating voltage at this, carries out ignition operation.Therefore there is crosstalk phenomenon in the sparking of existing gas-cooker left and right burner.
Summary of the invention
Main purpose of the present invention is to provide a kind of pulse firing control circuit and gas-cooker, is intended to prevent gas-cooker from producing crosstalk when left and right burner is struck sparks.
To achieve these goals, the invention provides a kind of pulse firing control circuit, described pulse firing control circuit comprises: switching tube, first electric capacity, switch key, first resistance, first coil, second coil and control module, wherein said switching tube comprises first end, second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity, the positive pole of described first electric capacity is connected with the positive pole of preset power by described switch key, first end is connected with described control module by described first coil, second end is connected with described earth terminal, the negative pole of described first electric capacity is connected with the negative pole of described preset power, forms earth terminal, one end of described first resistance is connected with control end, and the other end is connected with described earth terminal, one end of described second coil is connected with described earth terminal, and the other end is connected with described control module, and described first coil is connected with the second coil coupling, described control module is used for when the first end of described switching tube and the second end conducting, controls described second coil two ends and produces oscillating voltage.
Preferably, described control module comprises the first triode, the second resistance, the second electric capacity and Zener diode, described first triode is PNP triode, its emitter stage is connected with the positive pole of described preset power, base stage is connected with described first coil by described second electric capacity, and colelctor electrode is connected with described second coil; One end of described second electric capacity is connected with the base stage of described first triode, and the other end is connected with the emitter stage of described first triode; One end that one end that wherein said first coil is connected with described switching tube first end is connected with described first transistor collector with described second coil is Same Name of Ends; The anode of described Zener diode is connected with the colelctor electrode of described first triode, and negative electrode is connected with the emitter stage of described first triode.
Preferably, described control module also comprises diode, and the anode of described diode is connected with the base stage of described first triode, and negative electrode is connected with the emitter stage of described first triode.
Preferably, it is the second triode that described switching tube comprises, and described second triode is NPN triode, and it launches the second end of very described switching tube, and the first end of the very described switching tube of current collection, base stage is the control end of described switching tube.
Preferably, the 3rd resistance is also provided with between the positive pole of described control end and described first electric capacity.
Preferably, described pulse firing control circuit also comprises the 3rd electric capacity, and described 3rd Capacitance parallel connection is in the two ends of described first resistance.
In addition, for achieving the above object, the present invention also provides a kind of gas-cooker, described gas-cooker comprises at least two pulse firing control circuits, described pulse firing control circuit comprises: switching tube, first electric capacity, switch key, first resistance, first coil, second coil and control module, wherein said switching tube comprises first end, second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity, the positive pole of described first electric capacity is connected with the positive pole of preset power by described switch key, first end is connected with described control module by described first coil, second end is connected with described earth terminal, the negative pole of described first electric capacity is connected with the negative pole of described preset power, forms earth terminal, one end of described first resistance is connected with control end, and the other end is connected with described earth terminal, one end of described second coil is connected with described earth terminal, and the other end is connected with described control module, and described first coil is connected with the second coil coupling, described control module is used for when the first end of described switching tube and the second end conducting, controls described second coil two ends and produces oscillating voltage.
The pulse firing control circuit that the embodiment of the present invention provides comprises switching tube, the first electric capacity, switch key, the first resistance, the first coil, the second coil and control module, wherein said switching tube comprises first end, the second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity, the positive pole of described first electric capacity is connected with the positive pole of preset power by described switch key, first end is connected with described control module by described first coil, and the second end is connected with described earth terminal; The negative pole of described first electric capacity is connected with the negative pole of described preset power, forms earth terminal; One end of described first resistance is connected with control end, and the other end is connected with described earth terminal; One end of described second coil is connected with described earth terminal, and the other end is connected with described control module, and described first coil is connected with the second coil coupling; Described control module is used for when the first end of described switching tube and the second end conducting, controls described second coil two ends and produces oscillating voltage.Due to the control end of switching tube is directly connected to ground by the first resistance, thus when switch key ends, the voltage at the first electric capacity two ends can be discharged into rapidly 0 voltage; When therefore can not strike sparks because of left and right burner in gas-cooker, produce crosstalk phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, the structure according to these accompanying drawings can also obtain other accompanying drawing.
Fig. 1 is the electrical block diagram of pulse firing control circuit one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Drawing reference numeral illustrates:
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Need explanation, all directionality instruction (such as up, down, left, right, before and afters in the embodiment of the present invention ...) only for explaining the relative position relation, motion conditions etc. under a certain particular pose (as shown in drawings) between each parts, if when this particular pose changes, then directionality instruction also correspondingly changes thereupon.
In addition, relate to the description of " first ", " second " etc. in the present invention only for describing object, and instruction can not be interpreted as or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In addition; technical scheme between each embodiment can be combined with each other; but must be can be embodied as basis with those of ordinary skill in the art; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exist, also not within the protection domain of application claims.
The invention provides a kind of pulse firing control circuit, with reference to Fig. 1, in one embodiment, this pulse firing control circuit comprises switching tube Q1, first electric capacity C1, switch key S, first resistance R1, first coil L1, second coil L2 and control module 10, wherein said switching tube Q1 comprises first end, second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity C1, the positive pole of described first electric capacity C1 is connected with the positive pole of preset power VCC by described switch key S, first end is connected with described control module 10 by described first coil L1, second end is connected with described earth terminal, the negative pole of described first electric capacity C1 is connected with the negative pole of described preset power VCC, forms earth terminal, one end of described first resistance R1 is connected with control end, and the other end is connected with described earth terminal, one end of described second coil L2 is connected with described earth terminal, and the other end is connected with described control module 10, and described first coil L1 and the second coil L2 is of coupled connections, described control module 10, for when the first end of described switching tube Q1 and the second end conducting, controls described second coil L2 two ends and produces oscillating voltage.
The pulse firing control circuit that the present embodiment provides is mainly used in gas-cooker, for generation of oscillating voltage.
In the present embodiment, above-mentioned switch key S is the rotary switch in gas-cooker, and particularly, comprise two burners at gas-cooker, each burner correspondence is provided with a pulse firing control circuit, to control its ignition operation.Above-mentioned preset power can be the built-in battery of gas-cooker, and the working power that yet can provide for external adapter, does not do at this and limit further.
Operationally, when user presses switch key S, switch key S is made to be in conducting state.Preset power VCC will charge to the first electric capacity C1 two ends, and when the voltage rise of the first electric capacity C1 extremely can make the high level of switching tube conducting, switching tube Q1 conducting.Now, the first coil L1 and the second coil L2, under the effect of control module 10, makes the second coil L2 two ends produce oscillating voltage.This oscillating voltage roughly in sine wave, and is direct current.
As user's trip switch button S, the voltage at the first electric capacity C1 two ends will be discharged by the first resistance R1, and the voltage of switching tube Q1 control end can be made to become rapidly 0 voltage.Now switching tube Q1 is in cut-off state, and stopping is produced oscillating voltage by the second coil L2 two ends.
Particularly, in pulse firing control circuit, also comprise high-voltage pulses circuit 20, the oscillating voltage of this high-voltage pulses circuit to above-mentioned second coil L2 two ends carries out coupled boost, finally outputs in high voltage package HV, for high voltage package HV provides impulse ignition voltage, realize ignition function.
The circuit structure of this high-voltage pulses circuit 20 can be arranged according to actual needs, is not described further at this.
The pulse firing control circuit that the embodiment of the present invention provides comprises switching tube Q1, first electric capacity C1, switch key S, first resistance R1, first coil L1, second coil L2 and control module 10, wherein said switching tube Q1 comprises first end, second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity C1, the positive pole of described first electric capacity C1 is connected with the positive pole of preset power VCC by described switch key S, first end is connected with described control module 10 by described first coil L1, second end is connected with described earth terminal, the negative pole of described first electric capacity C1 is connected with the negative pole of described preset power VCC, forms earth terminal, one end of described first resistance R1 is connected with control end, and the other end is connected with described earth terminal, one end of described second coil L2 is connected with described earth terminal, and the other end is connected with described control module 10, and described first coil L1 and the second coil L2 is of coupled connections, described control module 10, for when the first end of described switching tube Q1 and the second end conducting, controls described second coil L2 two ends and produces oscillating voltage.Due to the control end of switching tube Q1 is directly connected to ground by the first resistance R1, thus when switch key S ends, the voltage at the first electric capacity C1 two ends can be discharged into rapidly 0 voltage; When therefore can not strike sparks because of left and right burner in gas-cooker, produce crosstalk phenomenon.
Be understandable that, the structure of above-mentioned control module 10 can be arranged according to actual needs, in the present embodiment, above-mentioned control module 10 comprises the first triode Q2, the second resistance R2, the second electric capacity C2 and Zener diode Z1, described first triode Q2 is PNP triode, its emitter stage is connected with the positive pole of described preset power VCC, and base stage is connected with described first coil L1 by described second electric capacity C2, and colelctor electrode is connected with described second coil L2; One end of described second electric capacity C2 is connected with the base stage of described first triode Q2, and the other end is connected with the emitter stage of described first triode Q2; One end that one end that wherein said first coil L1 is connected with described switching tube Q1 first end is connected with described first triode Q2 colelctor electrode with described second coil L2 is Same Name of Ends; The anode of described Zener diode Z1 is connected with the colelctor electrode of described first triode Q2, and negative electrode is connected with the emitter stage of described first triode Q2.
Particularly, in the process of work, when the first end of above-mentioned switching tube Q1 is communicated with the second end, above-mentioned second electric capacity C2 is discharged by the second resistance R2 and the first coil L1.The base voltage of the first triode Q2 is reduced, when being reduced to certain value, first triode Q2 conducting, now preset power VCC will be charged to the second coil L2 by the first triode Q2, in the process of charging, will produce induced electromotive force on the first coil L1, thus make the voltage rise of the first triode Q2 base stage, when above-mentioned to a certain extent after, the first triode Q2 ends, and the second coil L2 will be discharged by Zener diode Z1.In the process of electric discharge, the voltage of the first triode Q2 base stage will rise again, thus again cause the first triode Q2 to end.Therefore in the process of switching tube Q1 conducting, by the continuous conducting of the first triode Q2 and cut-off, continuous charging and discharging on the second coil L2, thus form oscillating voltage.
Further, based on above-described embodiment, in the present embodiment, above-mentioned control module 10 also comprises diode D1, and the anode of described diode D1 is connected with the base stage of described first triode Q2, and negative electrode is connected with the emitter stage of described first triode Q2.
In the present embodiment, above-mentioned diode D1 is commutation diode, realizes continuous current discharge electricity for the moment turned off at triode.Prevent the voltage between the first triode Q2 emitter stage and base stage excessive, and damage the first triode Q2.
Be understandable that, the structure of above-mentioned switching tube Q1 can be arranged according to actual needs, based on above-described embodiment, in the present embodiment, preferably, described switching tube Q1 comprises is the second triode, described second triode is NPN triode, it launches the second end of very described switching tube, and the first end of the very described switching tube of current collection, base stage is the control end of described switching tube.
Be understandable that, in other embodiments, above-mentioned switching tube Q1 can also adopt other structures, such as, such as, can adopt FET etc.
Further, based on above-described embodiment, in the present embodiment, between the positive pole of above-mentioned control end and described first electric capacity C1, be also provided with the 3rd resistance R3.
In the present embodiment, the 3rd resistance R3 is current-limiting resistance, can be connected between control end and the first electric capacity C1, between the emitter stage that also can be connected to the second triode and earth terminal.
Further, based on above-described embodiment, in the present embodiment, above-mentioned pulse firing control circuit also comprises the 3rd electric capacity C3, and described 3rd electric capacity C3 is parallel to the two ends of described first resistance R1.
In the present embodiment, the 3rd electric capacity C3 is filter capacitor, for the voltage of stable switch pipe Q1 control end.
The present invention also provides a kind of gas-cooker, and this gas-cooker comprises at least two pulse firing control circuits, and the structure of this pulse firing control circuit can refer to above-described embodiment, does not repeat them here.Naturally, the gas-cooker due to the present embodiment have employed the technical scheme of above-mentioned pulse firing control circuit, and therefore this gas-cooker has all beneficial effects of above-mentioned pulse firing control circuit.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a pulse firing control circuit, it is characterized in that, described pulse firing control circuit comprises: switching tube, first electric capacity, switch key, first resistance, first coil, second coil and control module, wherein said switching tube comprises first end, second end and the control end for controlling described first end and the second end connected state, wherein, described control end is connected with the positive pole of described first electric capacity, the positive pole of described first electric capacity is connected with the positive pole of preset power by described switch key, first end is connected with described control module by described first coil, second end is connected with described earth terminal, the negative pole of described first electric capacity is connected with the negative pole of described preset power, forms earth terminal, one end of described first resistance is connected with control end, and the other end is connected with described earth terminal, one end of described second coil is connected with described earth terminal, and the other end is connected with described control module, and described first coil is connected with the second coil coupling, described control module is used for when the first end of described switching tube and the second end conducting, controls described second coil two ends and produces oscillating voltage.
2. pulse firing control circuit as claimed in claim 1, it is characterized in that, described control module comprises the first triode, the second resistance, the second electric capacity and Zener diode, described first triode is PNP triode, its emitter stage is connected with the positive pole of described preset power, base stage is connected with described first coil by described second electric capacity, and colelctor electrode is connected with described second coil; One end of described second electric capacity is connected with the base stage of described first triode, and the other end is connected with the emitter stage of described first triode; One end that one end that wherein said first coil is connected with described switching tube first end is connected with described first transistor collector with described second coil is Same Name of Ends; The anode of described Zener diode is connected with the colelctor electrode of described first triode, and negative electrode is connected with the emitter stage of described first triode.
3. pulse firing control circuit as claimed in claim 2, it is characterized in that, described control module also comprises diode, and the anode of described diode is connected with the base stage of described first triode, and negative electrode is connected with the emitter stage of described first triode.
4. the pulse firing control circuit as described in any one of claims 1 to 3, it is characterized in that, it is the second triode that described switching tube comprises, described second triode is NPN triode, it launches the second end of very described switching tube, the first end of the very described switching tube of current collection, base stage is the control end of described switching tube.
5. pulse firing control circuit as claimed in claim 4, is characterized in that, be also provided with the 3rd resistance between the positive pole of described control end and described first electric capacity.
6. pulse firing control circuit as claimed in claim 5, it is characterized in that, described pulse firing control circuit also comprises the 3rd electric capacity, and described 3rd Capacitance parallel connection is in the two ends of described first resistance.
7. a gas-cooker, is characterized in that, comprises at least two pulse firing control circuits according to any one of claim 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982093.7A CN105423339B (en) | 2015-12-22 | 2015-12-22 | Pulse firing controls circuit and gas-cooker |
| PCT/CN2016/100372 WO2017088583A1 (en) | 2015-11-27 | 2016-09-27 | Pulse ignition control circuit, gas stove, and working control method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510982093.7A CN105423339B (en) | 2015-12-22 | 2015-12-22 | Pulse firing controls circuit and gas-cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423339A true CN105423339A (en) | 2016-03-23 |
| CN105423339B CN105423339B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510982093.7A Active CN105423339B (en) | 2015-11-27 | 2015-12-22 | Pulse firing controls circuit and gas-cooker |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088583A1 (en) * | 2015-11-27 | 2017-06-01 | 广东美的厨房电器制造有限公司 | Pulse ignition control circuit, gas stove, and working control method and device therefor |
| CN109185919A (en) * | 2018-08-30 | 2019-01-11 | 珠海格力电器股份有限公司 | Pulse firing control circuit, pulse igniter and household electrical appliance |
| CN110986087A (en) * | 2019-12-13 | 2020-04-10 | 广东雷子克热电工程技术有限公司 | Electronic ignition device |
| CN113432157A (en) * | 2021-07-30 | 2021-09-24 | 华帝股份有限公司 | Gas stove and control method thereof |
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| CN113432157B (en) * | 2021-07-30 | 2022-10-04 | 华帝股份有限公司 | Gas stove and control method thereof |
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| CN105423339B (en) | 2017-10-27 |
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Effective date of registration: 20181012 Address after: 528311 20 Beijiao Road, Beijiao Town, Shunde District, Foshan, Guangdong Patentee after: Foshan Shunde District Midea Washing Electrical Appliance Manufacturing Co., Ltd. Address before: 528311 Yongan Road, Beijiao Town, Shunde District, Foshan, Guangdong 6 Co-patentee before: Midea Group Co., Ltd. Patentee before: Guangdong Midea Kitchen Appliance Manufacturing Co., Ltd. |