CN112684369B - Wind pressure switch detection system for preventing short circuit between wires of gas appliance - Google Patents
Wind pressure switch detection system for preventing short circuit between wires of gas appliance Download PDFInfo
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- CN112684369B CN112684369B CN202011342890.6A CN202011342890A CN112684369B CN 112684369 B CN112684369 B CN 112684369B CN 202011342890 A CN202011342890 A CN 202011342890A CN 112684369 B CN112684369 B CN 112684369B
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Abstract
The invention discloses a wind pressure switch detection system for preventing short circuit between wires of a gas appliance, wherein the gas appliance comprises a main system and a subsystem, the main system comprises an ignition system, the subsystem comprises a control subsystem, a monitoring subsystem, a switch subsystem and an early warning subsystem, a unidirectional conduction component is arranged in the switch subsystem, the monitoring subsystem is used for detecting the starting state of the switch subsystem when the main system is started and whether the unidirectional conduction with the switch subsystem is carried out, and the control subsystem is used for controlling the starting and stopping of the main system or the early warning subsystem. The circuit has one-way conductivity, if the wind pressure switch is closed, the circuit is short-circuited, the circuit does not have one-way conductivity, the circuit fault can be judged, the ignition system cannot work, the early warning subsystem is controlled to alarm and prompt the circuit fault, the system misjudgment under the conditions that the air channel is not normally opened and the circuit is short-circuited is effectively avoided, the safety problem caused by the fact that waste gas generated by the working of the gas appliance cannot be discharged under the condition is avoided, and the use safety of the gas appliance is improved.
Description
Technical Field
The invention relates to the field of gas appliances, in particular to a wind pressure switch detection system for preventing short circuit between wires of a gas appliance.
Background
The gas appliance refers to kitchen and bathroom appliances heated by direct fire with gas fuels such as liquefied petroleum gas, artificial gas, natural gas and the like, and along with the rapid development of gas and gas appliance industries, the safety measures of household gas appliances are continuously enhanced, and the materials, functions, performances and the like of the household gas appliances are continuously improved.
When the gas appliance is used, waste gas generated in the combustion process needs to be discharged through an exhaust system of the gas appliance, and a wind pressure switch is usually adopted in the gas appliance to detect whether the exhaust system is normal or not, so that the gas is ensured to be combusted in a safe environment. The existing wind pressure switch adopts a mode of converting pressure into a microswitch, the switch closure indicates that an air exhaust duct is normal, if the conditions such as a wind pressure switch circuit short circuit occur in the working process, an MCU (micro control unit) can not accurately judge whether the wind pressure switch is switched on or the circuit short circuit, if the circuit short circuit condition occurs, the MCU judges that the air duct is normal and the air duct is not normally opened actually, a relatively serious safety problem can be caused, and a relatively large potential safety hazard exists.
Disclosure of Invention
To overcome the disadvantages of the prior art, the present invention is directed to a wind pressure switch detection system for gas appliances to prevent short circuit between wires, which is safer to use.
The gas appliance comprises a main system and a subsystem, wherein the main system comprises an ignition system, the subsystem comprises a control subsystem, a monitoring subsystem, a switch subsystem and an early warning subsystem, a one-way conduction component is arranged in the switch subsystem, the monitoring subsystem is used for detecting the starting state of the switch subsystem when the main system is started and whether the switch subsystem is in one-way conduction with the switch subsystem, and the control subsystem is used for controlling the starting and stopping of the main system or the early warning subsystem.
As a preferred mode, the control subsystem and the monitoring subsystem are integrated in a micro control unit, and the micro control unit is connected with the switch subsystem through a first GPIO and a second GPIO respectively.
Preferably, the switch subsystem comprises a wind pressure switch and a diode connected in series with the wind pressure switch.
Preferably, a first resistance module is connected in series between the micro control unit and the switch subsystem.
As a preferred mode, the detection system comprises the following steps: A. power-on initialization; B. starting the gas appliance; C. the monitoring subsystem detects and judges the opening state of the switch subsystem, if the switch subsystem is closed, the switch subsystem enters the state D, and if the switch subsystem is opened, the control subsystem controls the early warning subsystem to give an alarm; D. the monitoring subsystem judges whether the monitoring subsystem is in one-way conduction with the switching subsystem, if so, the monitoring subsystem enters the E state, and if not, the control subsystem controls the early warning subsystem to give an alarm; E. the control subsystem controls the ignition system to turn on.
According to the wind pressure switch detection system for preventing the short circuit between the wires of the gas appliance, the diode is connected in series in the switch subsystem, when the wind pressure switch is closed, the loop has one-way conductivity, if the wind pressure switch is closed and the circuit is short-circuited, the loop does not have the one-way conductivity, the micro control unit can judge that the circuit is in fault and the ignition system cannot work, and simultaneously controls the early warning subsystem to alarm and prompt the circuit to be in fault, so that the system misjudgment under the conditions that the air duct is not normally opened and the circuit is short-circuited is effectively avoided, the safety problem caused by the fact that waste gas generated by the work of the gas appliance cannot be discharged under the condition is avoided, and the use safety of the gas appliance is improved.
Drawings
FIG. 1 is a schematic view of a detection system according to an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of the present invention.
Number and name in the figure: MCU, micro control unit GPI01, first GPI0 GPI02, second GPI 0D 1, diode K1, wind pressure switch R1, first resistance ALM, early warning subsystem
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
The utility model provides a wind pressure switch detecting system for short circuit between protection line of gas utensil, refer to fig. 1-2, the gas utensil includes main system and subsystem, and the main system includes ignition system, and the subsystem includes control subsystem, switch subsystem, early warning subsystem ALM, establishes one-way conduction components and parts in the switch subsystem, and the control subsystem is used for detecting the opening state of switch subsystem and whether one-way conduction with the switch subsystem when main system opens, and control subsystem is used for controlling the start-stop of main system or early warning subsystem ALM.
Specifically, the gas utensil is gas-cooker or gas heater, and in this example, control subsystem and monitoring subsystem integration are in a microcontrol unit MCU, and microcontrol unit MCU is connected with the switch subsystem through first GPIO (general purpose input output pin) and second GPIO respectively, and the switch subsystem includes wind pressure switch K1 and one-way conduction components and parts (diode promptly) D1, control subsystem with it has first resistance module (first resistance promptly) R1 to establish ties between the switch subsystem.
The detection system comprises the following steps:
A. electrifying and initializing, wherein the gas appliance enters a standby state and receives the control parameter setting of a user;
B. starting the gas appliance, and starting the main system and the subsystem to work;
C. the monitoring subsystem detects and judges the closing state of the switch subsystem, if the switch subsystem is judged to be closed, the D is entered, and if the switch subsystem is judged to be opened, the control subsystem controls the early warning subsystem ALM to give an alarm;
D. the monitoring subsystem judges whether the switch subsystem is in unidirectional conduction or not, if the switch subsystem is judged to be in unidirectional conduction, the monitoring subsystem enters E, and if the switch subsystem is judged not to be in unidirectional conduction, the control subsystem controls the early warning subsystem ALM to give an alarm;
E. the control subsystem controls the ignition system to be started, and the gas appliance enters a working state.
This a wind pressure switch detecting system for gas utensil prevents short circuit between line, through at the inside series connection diode D1 of switch subsystem, when wind pressure switch K1 is closed, its return circuit has one-way conductivity, if wind pressure switch K1 is closed, the circuit short circuit, then the return circuit does not have one-way conductivity, little the control unit MCU can judge for the circuit trouble, ignition system can't work, control early warning subsystem ALM warning suggestion circuit trouble simultaneously, effectively avoid the wind channel not normally open, the system misjudgement under the circuit short circuit condition, the exhaust gas that avoids gas utensil work production under this condition can't discharge and the safety problem that leads to, improve the safety in utilization of gas utensil.
The wind pressure switch detecting system for preventing short circuit between wires of a gas appliance according to the present invention has been described above for helping understanding of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit of the present invention should be replaced by equivalents, and all such changes and modifications are intended to be included within the scope of the present invention.
Claims (4)
1. A wind pressure switch detection system for preventing short circuit between lines of a gas appliance is characterized in that the gas appliance comprises a main system and a subsystem, the main system comprises an ignition system, the subsystem comprises a control subsystem, a monitoring subsystem, a switch subsystem and an early warning subsystem, a one-way conduction component is arranged in the switch subsystem, the monitoring subsystem is used for detecting the starting state of the switch subsystem when the main system is started and whether the switch subsystem is in one-way conduction or not, and the control subsystem is used for controlling the starting and stopping of the main system or the early warning subsystem;
the detection system comprises the following steps: A. power-on initialization; B. starting the gas appliance; C. the monitoring subsystem detects and judges the closing state of the switch subsystem, if the switch subsystem is closed, the switch subsystem enters the state D, and if the switch subsystem is opened, the control subsystem controls the early warning subsystem to give an alarm; D. the monitoring subsystem judges whether the monitoring subsystem is in one-way conduction with the switching subsystem, if so, the monitoring subsystem enters the E state, and if not, the control subsystem controls the early warning subsystem to give an alarm; E. the control subsystem controls the ignition system to turn on.
2. The wind pressure switch detection system for preventing the short circuit between the wires of the gas appliance according to claim 1, wherein the control subsystem and the monitoring subsystem are integrated into a micro control unit, and the micro control unit is connected with the switch subsystem through a first GPIO and a second GPIO respectively.
3. The wind pressure switch detection system for gas appliance to prevent short circuit between wires according to claim 1, wherein the switch subsystem comprises a wind pressure switch and a diode in series with the wind pressure switch.
4. The wind pressure switch detection system for gas appliance to prevent short circuit between wires according to claim 2, wherein a first resistance module is connected in series between the micro control unit and the switch subsystem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011342890.6A CN112684369B (en) | 2020-11-25 | 2020-11-25 | Wind pressure switch detection system for preventing short circuit between wires of gas appliance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011342890.6A CN112684369B (en) | 2020-11-25 | 2020-11-25 | Wind pressure switch detection system for preventing short circuit between wires of gas appliance |
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| CN112684369A CN112684369A (en) | 2021-04-20 |
| CN112684369B true CN112684369B (en) | 2022-08-05 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2799833B2 (en) * | 1994-12-09 | 1998-09-21 | 阪神エレクトリック株式会社 | Control device for electrical load |
| JP4757815B2 (en) * | 2007-03-05 | 2011-08-24 | 本田技研工業株式会社 | Electric motor control device and vehicle |
| CN101191813A (en) * | 2007-03-09 | 2008-06-04 | 中兴通讯股份有限公司 | Short circuit detection device |
| CN201740837U (en) * | 2010-06-25 | 2011-02-09 | 广州励丰声光科技有限公司 | Multifunctional conducting wire detecting instrument |
| CN102323510B (en) * | 2011-05-25 | 2015-03-04 | 中国兵器工业集团第七○研究所 | Rapid and reliable flat cable assembly detection device |
| CN103091598B (en) * | 2013-01-28 | 2015-03-04 | 中国矿业大学 | Fault diagnosis method for switch reluctance motor dual-switch power converter fly-wheel diode |
| CN105242149B (en) * | 2015-11-04 | 2018-05-29 | 南车株洲电力机车研究所有限公司 | IGCT phase module circuits with inductive drop state-detection |
| JP6686857B2 (en) * | 2016-11-30 | 2020-04-22 | トヨタ自動車株式会社 | Short-circuit fault detection device |
| CN208506175U (en) * | 2018-08-07 | 2019-02-15 | 深圳市英威腾电气股份有限公司 | A kind of short-circuit test device and short-circuit test circuit |
| CN210835161U (en) * | 2019-09-27 | 2020-06-23 | 上海金脉电子科技有限公司 | Relay adhesion detecting system |
| CN111398852A (en) * | 2020-03-31 | 2020-07-10 | 厦门科灿信息技术有限公司 | Power output short circuit detection circuit and electronic equipment |
| CN111624514B (en) * | 2020-07-02 | 2022-08-26 | 南京师范大学 | Method for diagnosing short-circuit and open-circuit faults of switching tube of three-level rectifier |
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