CN110715454A - Leakage protector, control method thereof and gas water heater - Google Patents
Leakage protector, control method thereof and gas water heater Download PDFInfo
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- CN110715454A CN110715454A CN201911100026.2A CN201911100026A CN110715454A CN 110715454 A CN110715454 A CN 110715454A CN 201911100026 A CN201911100026 A CN 201911100026A CN 110715454 A CN110715454 A CN 110715454A
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- 230000001012 protector Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000002528 anti-freeze Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000007710 freezing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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Abstract
The invention discloses a leakage protector, a control method thereof and a gas water heater. Wherein, earth-leakage protector includes: the switch module is used for connecting the power supply and the target electrical appliance; the concentration detection module is used for detecting the concentration of the carbon monoxide; and the control module is electrically connected with the switch module and the concentration detection module, is used for controlling the switch module to be opened and then closed when the concentration is greater than a first threshold value, and is also used for controlling the power supply to be interrupted to supply power to the target electrical appliance when the power supply is leaked. According to the invention, the switch module and the concentration detection module are added in the leakage protector, so that the leakage protector can detect the concentration of carbon monoxide while detecting leakage, and the target electrical appliance connected with the leakage protector can be switched from the current state to the standby state when the concentration of the carbon monoxide exceeds the standard, thereby not only avoiding generating new carbon monoxide, but also executing partial work which can be carried out in the standby state.
Description
Technical Field
The invention relates to the technical field of electric leakage protection, in particular to an electric leakage protector, a control method thereof and a gas water heater.
Background
Carbon monoxide exists in tail gas discharged by the gas water heater, and carbon monoxide with a certain concentration is harmful to human bodies, most of the current gas water heaters are provided with a carbon monoxide concentration detection device so as to detect the concentration of the carbon monoxide in real time and alarm the overproof of the concentration of the carbon monoxide. Generally, the carbon monoxide concentration detecting device may be installed inside or outside the gas water heater. However, no matter which installation mode, the carbon monoxide concentration detection device cannot realize linkage control with the whole gas water heater, so that in the alarm process, the gas water heater cannot automatically stop working, carbon monoxide can still be continuously discharged due to continuous working of the gas water heater, the concentration of the carbon monoxide is further improved, and the risk is increased.
Disclosure of Invention
The invention aims to overcome the defect that a carbon monoxide concentration detection device in the prior art cannot realize linkage control, and provides a leakage protector with a carbon monoxide detection function, a control method thereof and a gas water heater.
The invention solves the technical problems through the following technical scheme:
a leakage protector comprising:
the switch module is used for connecting the power supply and the target electrical appliance;
the concentration detection module is used for detecting the concentration of the carbon monoxide;
and the control module is electrically connected with the switch module and the concentration detection module, is used for controlling the switch module to be opened and then closed when the concentration is greater than a first threshold value, and is also used for controlling the power supply to be interrupted to supply power to the target electrical appliance when the power supply is leaked.
Preferably, the earth leakage protector further comprises:
the state detection module is used for detecting the working state of the target electric appliance, wherein the working state comprises a standby state and a working state;
the control module is specifically used for controlling the switch module to be opened and then closed firstly when the concentration is greater than a first threshold value and the target electrical appliance is in the working state.
Preferably, the state detection module comprises a current detection circuit arranged between the power supply and the switch module;
the current detection circuit is used for detecting the actual current of the target electrical appliance;
the control module is specifically configured to control the switch module to open and then close first when the concentration is greater than a first threshold and the actual current is greater than a second threshold.
Preferably, the control module is further configured to count a duration of time that the concentration is greater than the first threshold, and the control module is specifically configured to control the switch module to open first and then close when the concentration is greater than the first threshold and the duration of time is greater than a third threshold;
and/or the presence of a gas in the gas,
the control module is further used for receiving an ambient temperature, and the control module is specifically used for controlling the switch module to be opened and then closed firstly when the concentration is greater than a first threshold and the ambient temperature is less than a fourth threshold;
and/or the presence of a gas in the gas,
the switch module comprises a relay or a silicon controlled rectifier;
and/or the presence of a gas in the gas,
the concentration detection module comprises an alarm unit used for sending alarm information when the concentration is larger than the first threshold value.
A control method of a leakage protector is realized by the leakage protector, and comprises the following steps:
the concentration detection module detects the concentration of carbon monoxide;
the control module judges whether the concentration is greater than a first threshold value;
if yes, the control module controls the switch module to be opened and then closed.
Preferably, the earth leakage protector further comprises a state detection module, and before the step of controlling the switch module to open and then close by the control module, the method further comprises:
the state detection module detects the working state of a target electric appliance, wherein the working state comprises a standby state and a working state;
the control module judges whether the target electrical appliance is in a working state;
and if so, executing the step that the control module controls the switch module to be opened and then closed.
Preferably, the state detection module comprises a current detection circuit arranged between the power supply and the switch module;
the step of detecting the working state of the target electrical appliance by the state detection module comprises the following steps:
the current detection circuit detects the actual current of the target electric appliance;
the step of judging whether the target electrical appliance is in the working state by the control module comprises the following steps:
the control module judges whether the actual current is larger than a second threshold value;
and if so, determining that the target electrical appliance is in the working state.
Preferably, before the step of the control module controlling the switch module to open and then close, the method further comprises:
the control module judges whether the duration of the concentration greater than the first threshold is greater than a third threshold;
if yes, executing the step that the control module controls the switch module to be opened and then closed;
and/or the presence of a gas in the gas,
the control module judges whether the ambient temperature is less than a fourth threshold value;
and if so, executing the step that the control module controls the switch module to be opened and then closed.
The gas water heater comprises a gas water heater complete machine and any one of the leakage protectors, wherein the gas water heater complete machine is a target electrical appliance.
Preferably, the gas water heater further comprises an anti-freeze device for operating when the ambient temperature is below a fifth threshold.
The positive progress effects of the invention are as follows: according to the invention, the switch module and the concentration detection module are added in the leakage protector, so that the leakage protector can detect the concentration of carbon monoxide while detecting electric leakage, and when the concentration of the carbon monoxide exceeds the standard, the switch module can be controlled to be sequentially switched on and off, so that a target electric appliance connected with the leakage protector can be switched from the current state to the power-off state and then to the standby state, and the target electric appliance can not only avoid generating new carbon monoxide when the carbon monoxide exceeds the standard, but also can execute partial work which can be carried out in the standby state.
Drawings
Fig. 1 is a schematic view of the internal connection of a leakage protector according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the internal connection of the earth leakage protector according to embodiment 2 of the present invention.
Fig. 3 is a flowchart of a method for controlling a leakage protector according to embodiment 3 of the present invention.
Fig. 4 is a partial flowchart of a method for controlling a leakage protector according to embodiment 4 of the present invention.
Fig. 5 is another partial flowchart of a method for controlling a leakage protector according to embodiment 4 of the present invention.
Fig. 6 is another partial flowchart of a method for controlling a leakage protector according to embodiment 4 of the present invention.
Fig. 7 is a schematic block diagram of a gas water heater according to embodiment 5 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The present embodiment provides a leakage protector, and fig. 1 shows an internal connection schematic diagram of the present embodiment. Referring to fig. 1, the earth leakage protector of the present embodiment includes: the control system comprises a control module 11, and a switch module 12, a concentration detection module 13, a zero sequence current transformer 14 and a release 15 which are electrically connected with the control module 11, wherein the switch module 12 is used for connecting a power supply and a target electrical appliance. In the present embodiment, the target appliance may be an appliance that generates carbon monoxide due to operation.
Specifically, in this embodiment, the zero sequence current transformer 14 is configured to detect whether there is a leakage current in the loop, and the control module 13 is configured to control the release 15 to operate to disconnect the power circuit when the zero sequence current transformer 14 detects that there is a leakage current in the loop, that is, when there is a leakage current, so that the power supply is interrupted to supply power to the target electrical appliance.
Further, in this embodiment, the concentration detection module 13 is configured to detect the concentration of carbon monoxide, specifically, the concentration detection module 13 may include a probe 131 disposed inside the earth leakage protector and configured to detect the concentration of carbon monoxide, and the control module 11 is configured to control the switch module 12 to open and then close when the concentration of carbon monoxide is greater than the first threshold. Specifically, in this embodiment, the first threshold may be set according to an actual application in a customized manner, and the switch module 12 may include a relay or a thyristor.
Specifically, in this embodiment, when the concentration detection module 13 detects that the concentration of carbon monoxide is greater than the first threshold, the control module 11 controls the switch module 12 to open and then close, if the zero-sequence current transformer 14 does not detect electric leakage, the release 15 will not operate to open the power circuit, so that when the control module 11 controls the switch module 12 to open, the target electrical appliance is switched from the current working state to the power-off state, so that the target electrical appliance stops generating carbon monoxide, thereby achieving safety assurance, and in addition, the control module 11 also controls the switch module 12 to close, the target electrical appliance is switched from the power-off state to the standby state, at this time, although the power supply to the target electrical appliance is not interrupted, the target electrical appliance is still not in the working state, that is, carbon monoxide is not generated, and the target electrical appliance can still perform work that can be performed in the standby state, such as machine freeze protection, etc.
This embodiment increases switch module and concentration detection module in earth-leakage protector, make earth-leakage protector can also detect the concentration of carbon monoxide in the environment when detecting the electric leakage, and, when carbon monoxide leaks and concentration exceeds standard, can also break off and close in proper order through control switch module, make the target electrical apparatus of being connected with earth-leakage protector can switch to the outage state from the current condition, switch to standby state again, thereby target electrical apparatus can enough avoid producing new carbon monoxide and can also carry out the part work that can go on under standby state when carbon monoxide concentration exceeds standard.
In addition, because the concentration detection module is arranged in the leakage protector, the position of the concentration detection module can be changed by changing the power-on position of the leakage protector, and the flexibility setting of the position of the concentration detection module for detecting the concentration of the carbon monoxide is realized while the linkage performance of the concentration detection module and the target electrical appliance is ensured.
Example 2
The present embodiment provides a leakage protector based on embodiment 1, and fig. 2 shows an internal connection diagram of the present embodiment. Referring to fig. 2, the earth-leakage protector in this embodiment further includes a state detection module 16 electrically connected to the control module 11.
Specifically, in the present embodiment, the status detection module 16 is used for detecting an operating status of the target electrical appliance, wherein the operating status may include, but is not limited to, a standby status and an operating status. The control module 11 is specifically configured to control the switch module 12 to open and then close when the concentration of carbon monoxide is greater than the first threshold and the target electrical appliance is in the operating state.
In this embodiment, if the target electrical appliance is currently in the operating state, if the target electrical appliance is continuously in the operating state, the target electrical appliance may continuously generate carbon monoxide due to continuous operation, so that the concentration of the carbon monoxide is further increased, and at this time, it is necessary to switch the target electrical appliance from the operating state to the standby state to achieve the purpose of ensuring safety.
Further, in the present embodiment, the state detection module 16 may include a current detection circuit provided between the power supply and the switch module 12 for detecting an actual current of the target appliance. The control module 11 is specifically configured to control the switch module 12 to open and then close when the concentration is greater than the first threshold and the actual current is greater than the second threshold. The second threshold value can be set in a user-defined mode according to practical application, so that when the actual current is larger than the second threshold value, the target electric appliance can be represented to be in a working state, and the target electric appliance can be distinguished from being in an electrified standby state.
In this embodiment, the control module 11 may further be configured to count a duration that the concentration of the carbon monoxide is greater than the first threshold, that is, a duration that the concentration of the carbon monoxide exceeds the standard, and the control module 11 is specifically configured to control the switch module 12 to be opened and then closed first when the concentration of the carbon monoxide is greater than the first threshold and the duration is greater than a third threshold, where the third threshold may be set in a user-defined manner according to actual applications. On the one hand, judge the duration that carbon monoxide concentration exceeds standard, can avoid the erroneous judgement that produces because some accidental reason, improve earth-leakage protector's reliability, on the other hand, if the duration that carbon monoxide concentration exceeds standard is less than the third threshold value, then can characterize the concentration of carbon monoxide and be in the trend of reducing, because the potential safety hazard that carbon monoxide concentration exceeds standard and cause obtains solving, just also need not switch target electrical apparatus to standby state by operating condition.
In this embodiment, the target electrical appliance can still perform work in the standby state, for example, machine freeze protection, the control module 11 can be further configured to receive an ambient temperature detected by the sensor, where the sensor can be disposed on the leakage protector or in the target electrical appliance, the control module 11 is specifically configured to control the switch module to be turned off and then turned on when the concentration is greater than the first threshold and the ambient temperature is less than a fourth threshold, where the fourth threshold can be set by a user according to actual application, and when the ambient temperature is less than the fourth threshold, the target electrical appliance can be characterized to be in a low-temperature environment in which the machine freeze protection is required.
Referring to fig. 2, in the present embodiment, the concentration detection module 13 may include an alarm unit 132 for sending an alarm message to notify relevant personnel that a safety hazard exists when the concentration of carbon monoxide is greater than a first threshold, where the alarm unit 132 may include, but is not limited to, a buzzer.
On the basis of embodiment 1, the earth-leakage protector of this embodiment can also confirm whether to switch over target electrical apparatus to standby state when carbon monoxide concentration exceeds standard according to the present state of locating of target electrical apparatus and the environmental characteristics that earth-leakage protector is located, and in addition, the earth-leakage protector of this embodiment can also report to the police to the concentration of carbon monoxide exceeds standard, has richened earth-leakage protector's performance.
Example 3
The present embodiment provides a method for controlling a leakage protector, which is used to control the leakage protector provided in embodiment 1, and fig. 3 shows a flowchart of the present embodiment. Referring to fig. 3, the control method of the present embodiment includes:
s301, detecting the concentration of the carbon monoxide by a concentration detection module;
s302, judging whether the concentration is greater than a first threshold value by a control module;
if yes, go to step S303;
and S303, the control module controls the switch module to be opened and then closed.
The control method of the embodiment further comprises a step of detecting the concentration of carbon monoxide in the environment on the basis of realizing the leakage protection function of the leakage protector, and further comprises a step of controlling the switch module to be sequentially switched off and on when the concentration of the carbon monoxide is judged to exceed the standard, so that a target electrical appliance connected with the leakage protector can be switched to a power-off state from a current state and then switched to a standby state, the target electrical appliance can still execute partial work which can be performed in the standby state when the concentration of the carbon monoxide exceeds the standard, and the leakage protector is controlled to maintain the current state when the concentration of the carbon monoxide does not exceed the standard.
Example 4
In this embodiment, a control method of a leakage protector is provided on the basis of embodiment 3, and in this embodiment, the leakage protector further includes a state detection module. Fig. 4-6 show a partial flow diagram of the present embodiment.
Referring to fig. 4, before step S303, the control method of the present embodiment further includes:
s401, detecting the working state of a target electric appliance by a state detection module;
s402, judging whether the target electric appliance is in a working state by the control module;
if yes, go to step S303.
In this embodiment, the working state may include, but is not limited to, a standby state and a working state, if the target electrical appliance is currently in the working state, if the target electrical appliance is continuously in the working state, the target electrical appliance may continuously generate carbon monoxide due to continuous working, so that the concentration of the carbon monoxide is further increased, and therefore, it is necessary to switch the target electrical appliance from the working state to the standby state at this time to achieve the purpose of ensuring safety.
Further, in the present embodiment, the state detection module may include a current detection circuit provided between the power supply and the switch module. The step S401 may specifically include a step of detecting an actual current of the target electrical appliance by the current detection circuit, and the step S402 may specifically include a step of determining, by the control module, whether the actual current is greater than a second threshold, and a step of determining that the target electrical appliance is in an operating state when the actual current is greater than the second threshold. The second threshold value can be set in a user-defined mode according to practical application, so that when the actual current is larger than the second threshold value, the target electric appliance can be represented to be in a working state, and the target electric appliance can be distinguished from being in an electrified standby state.
Referring to fig. 5, before step S303, the control method of the present embodiment further includes:
s403, judging whether the duration time of the concentration greater than the first threshold is greater than a third threshold by the control module;
if yes, go to step S303.
In this embodiment, the third threshold value can be according to the self-defined setting of practical application, on the one hand, judges the duration that carbon monoxide concentration exceeds standard, can avoid because the erroneous judgement that some accidental reason produced, improves earth-leakage protector's reliability, on the other hand, if the duration that carbon monoxide concentration exceeds standard is less than the third threshold value, then can characterize the concentration of carbon monoxide and be in the decline trend, because the potential safety hazard that carbon monoxide concentration exceeds standard and cause obtains solving, just also need not switch target electrical apparatus to standby state by operating condition.
Referring to fig. 6, before step S303, the control method of the present embodiment further includes:
s404, the control module judges whether the ambient temperature is smaller than a fourth threshold value;
if yes, go to step S303.
In this embodiment, the target electrical appliance may still perform work in the standby state, for example, the machine may be protected from freezing, the sensor for detecting the ambient temperature may be disposed on the earth leakage protector, or may be disposed in the target electrical appliance, in addition, in this embodiment, the fourth threshold may be set by a user according to practical application, and when the ambient temperature is less than the fourth threshold, the target electrical appliance may be characterized to be in a low-temperature environment in which the machine needs to be protected from freezing.
On the basis of embodiment 3, the control method of the leakage protector of this embodiment can also determine whether to switch the target electrical appliance to the standby state when the carbon monoxide concentration exceeds the standard according to the current state of the target electrical appliance and the environmental characteristics of the leakage protector, thereby enriching the performance of the leakage protector.
Example 5
The embodiment provides a gas water heater, and a module schematic diagram of the embodiment is shown in fig. 7. Referring to fig. 7, the gas water heater of the present embodiment includes a gas water heater complete machine 2, an anti-freezing device 3, and the earth leakage protector 1 as provided in embodiment 1 or 2, wherein the gas water heater complete machine 2 may be the target appliance in embodiments 1 and 2, and the anti-freezing device 3 is configured to operate when the ambient temperature is lower than a fifth threshold (which may be set by a user according to an actual application).
In the embodiment, due to the existence of the leakage protector, the gas water heater can be powered off when electric leakage occurs, and can be switched to the standby state under the condition that the concentration of carbon monoxide exceeds the standard, so that not only can new carbon monoxide be prevented from being generated, but also devices such as anti-freezing devices, which can work when the gas water heater is in the standby state (not in the combustion working state), can continuously execute working tasks, so as to perform work such as anti-freezing protection on the gas water heater, and avoid freezing damage to the gas water heater due to too low temperature.
In addition, because the concentration detection module is arranged in the leakage protector, the position of the concentration detection module can be changed by changing the power-on position of the leakage protector, and the flexibility setting of the position of the concentration detection module for detecting the concentration of the carbon monoxide is realized while the linkage performance of the concentration detection module and the target electrical appliance is ensured.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A earth-leakage protector, comprising:
the switch module is used for connecting the power supply and the target electrical appliance;
the concentration detection module is used for detecting the concentration of the carbon monoxide;
and the control module is electrically connected with the switch module and the concentration detection module, is used for controlling the switch module to be opened and then closed when the concentration is greater than a first threshold value, and is also used for controlling the power supply to be interrupted to supply power to the target electrical appliance when the power supply is leaked.
2. A earth-leakage protector as claimed in claim 1, characterized in that it further comprises:
the state detection module is used for detecting the working state of the target electric appliance, wherein the working state comprises a standby state and a working state;
the control module is specifically used for controlling the switch module to be opened and then closed firstly when the concentration is greater than a first threshold value and the target electrical appliance is in the working state.
3. A earth-leakage protector according to claim 2, characterized in that the state detection module comprises a current detection circuit arranged between the power supply and the switch module;
the current detection circuit is used for detecting the actual current of the target electrical appliance;
the control module is specifically configured to control the switch module to open and then close first when the concentration is greater than a first threshold and the actual current is greater than a second threshold.
4. A leakage protector according to claim 1, wherein the control module is further configured to count a duration of time that the concentration is greater than the first threshold, and the control module is specifically configured to control the switch module to open and then close first when the concentration is greater than the first threshold and the duration is greater than a third threshold;
and/or the presence of a gas in the gas,
the control module is further used for receiving an ambient temperature, and the control module is specifically used for controlling the switch module to be opened and then closed firstly when the concentration is greater than a first threshold and the ambient temperature is less than a fourth threshold;
and/or the presence of a gas in the gas,
the switch module comprises a relay or a silicon controlled rectifier;
and/or the presence of a gas in the gas,
the concentration detection module comprises an alarm unit used for sending alarm information when the concentration is larger than the first threshold value.
5. A control method of a leakage protector, characterized in that the control method is implemented by the leakage protector according to claim 1, and the control method comprises:
the concentration detection module detects the concentration of carbon monoxide;
the control module judges whether the concentration is greater than a first threshold value;
if yes, the control module controls the switch module to be opened and then closed.
6. A method for controlling a leakage protector as claimed in claim 5, wherein the leakage protector further comprises a state detection module, and before the step of controlling the switch module to open and close first by the control module, the method further comprises:
the state detection module detects the working state of a target electric appliance, wherein the working state comprises a standby state and a working state;
the control module judges whether the target electrical appliance is in a working state;
and if so, executing the step that the control module controls the switch module to be opened and then closed.
7. A method for controlling a earth-leakage protector according to claim 6, wherein the state detection module comprises a current detection circuit provided between a power supply and the switch module;
the step of detecting the working state of the target electrical appliance by the state detection module comprises the following steps:
the current detection circuit detects the actual current of the target electric appliance;
the step of judging whether the target electrical appliance is in the working state by the control module comprises the following steps:
the control module judges whether the actual current is larger than a second threshold value;
and if so, determining that the target electrical appliance is in the working state.
8. A leakage protector control method according to claim 5, characterized in that,
before the step of the control module controlling the switch module to be opened and then closed, the method further comprises the following steps:
the control module judges whether the duration of the concentration greater than the first threshold is greater than a third threshold;
if yes, executing the step that the control module controls the switch module to be opened and then closed;
and/or the presence of a gas in the gas,
the control module judges whether the ambient temperature is less than a fourth threshold value;
and if so, executing the step that the control module controls the switch module to be opened and then closed.
9. A gas water heater, characterized in that, the gas water heater includes gas water heater complete machine and the earth-leakage protector of any one of claims 1-4, wherein, the gas water heater complete machine is the target electrical apparatus.
10. The gas water heater of claim 9, further comprising an anti-freeze device for operating when the ambient temperature is below a fifth threshold.
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| CN112827330A (en) * | 2021-01-08 | 2021-05-25 | 深圳市水务科技有限公司 | Odor linkage processing method, system and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109218A (en) * | 2009-12-28 | 2011-06-29 | 樱花卫厨（中国）股份有限公司 | Gas water heater with built-in gas detection device |
| JP2013253773A (en) * | 2013-08-12 | 2013-12-19 | Osaka Gas Co Ltd | Open type combustion device |
| CN109724260A (en) * | 2017-10-31 | 2019-05-07 | 芜湖美的厨卫电器制造有限公司 | Anti-electric valve and gas heater |
| CN211290578U (en) * | 2019-11-12 | 2020-08-18 | 宁波方太厨具有限公司 | Leakage protector and gas water heater |
-
2019
- 2019-11-12 CN CN201911100026.2A patent/CN110715454B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109218A (en) * | 2009-12-28 | 2011-06-29 | 樱花卫厨（中国）股份有限公司 | Gas water heater with built-in gas detection device |
| JP2013253773A (en) * | 2013-08-12 | 2013-12-19 | Osaka Gas Co Ltd | Open type combustion device |
| CN109724260A (en) * | 2017-10-31 | 2019-05-07 | 芜湖美的厨卫电器制造有限公司 | Anti-electric valve and gas heater |
| CN211290578U (en) * | 2019-11-12 | 2020-08-18 | 宁波方太厨具有限公司 | Leakage protector and gas water heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827330A (en) * | 2021-01-08 | 2021-05-25 | 深圳市水务科技有限公司 | Odor linkage processing method, system and storage medium |
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