CN106766218A - Instant electric water heater and its control method of automatic shutdown - Google Patents
Instant electric water heater and its control method of automatic shutdown Download PDFInfo
- Publication number
- CN106766218A CN106766218A CN201611066338.2A CN201611066338A CN106766218A CN 106766218 A CN106766218 A CN 106766218A CN 201611066338 A CN201611066338 A CN 201611066338A CN 106766218 A CN106766218 A CN 106766218A
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- Prior art keywords
- water heater
- instant electric
- electric water
- flow switch
- water flow
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Classifications
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
Abstract
Present invention is disclosed a kind of control method of instant electric water heater's automatic shutdown, methods described includes：Detect the water flow switch state of instant electric water heater；After water flow switch is continuously turned off the time reaches Preset Time, instant electric water heater's automatic shutdown is controlled.A time value is preset by instant electric water heater; when the water flow switch of instant electric water heater is continuously turned off after the time reaches Preset Time; control instant electric water heater's automatic shutdown; after can effectively preventing instant electric water heater to make moist or by other disturbing factors; cause to produce dry combustion method or burn out the misoperation such as component in machine, preferably protect instant electric water heater.
Description
Technical field
The present invention relates to the technical field that water heater safety uses, especially relate to a kind of instant electric water heater and
The control method of its automatic shutdown.
Background technology
The principle of instant electric water heater is carried out soon with the cold water in the heated region of electric heater convection current of relatively high power
Speed heating, is allowed to be rapidly reached predetermined temperature in use, reaches cold water and enters the purpose that hot water goes out, and forms a normal mistake for using
Journey.
Instant electric water heater is during use, it is necessary to have cold water to flow into, hot water outflow, but making due to people
With custom, after having used, closing water valve does not have closing power supply just to leave bathroom to majority, and water heater now is still in standby shape
State, once fortuitous event such as water flow switch occur mislead or wiring board program misoperation caused by humidity, just occur do not have it is cold
Water is heated and is caused dry combustion method in the case of flowing into, and most water heater burns at last, and serious meeting causes fire.
The content of the invention
The main object of the present invention is user-friendly to provide one kind, the instant electric water with automatic shut-off function
The control method of device and its automatic shutdown.
The present invention proposes a kind of control method of instant electric water heater's automatic shutdown, comprises the following steps：
Detect the water flow switch state of instant electric water heater；
Preset Time is reached when water flow switch is continuously turned off the time, instant electric water heater's automatic shutdown is controlled.
Further, the acquisition methods of the Preset Time include：Obtain Preset Time parameter of the burning on chip.
Further, the Preset Time includes 5 minutes to 2 hours.
Further, the step of water flow switch state of the detection instant electric water heater includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
Further, it is described when water flow switch persistently breaks when the water flow switch for detecting instant electric water heater disconnects
Also include before the step of ETAD expected time of arrival and departure reaches Preset Time, control instant electric water heater's automatic shutdown：
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
Present invention additionally comprises a kind of instant electric water heater, including：
Detection unit, the water flow switch state for detecting instant electric water heater；
Control unit, for after water flow switch is continuously turned off the time and reaches Preset Time, controlling instant electric water heater
Automatic shutdown.
Further, including acquiring unit, when obtaining default on chip of burning for the instant electric water heater
Between parameter.
Further, the Preset Time parameter of the instant electric water heater includes 5 minutes to 2 hours.
Further, the detection unit, the water flow switch state for detecting instant electric water heater includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
Further, the instant electric water heater also includes time control unit, for detecting instant electric water
After the water flow switch of device disconnects, when water flow switch is continuously turned off the time reaches Preset Time；
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
The present invention provide a kind of instant electric water heater and its automatic shutdown control method, have the advantage that for,
A time value is preset by instant electric water heater, is reached when the water flow switch of instant electric water heater is continuously turned off the time
After Preset Time, instant electric water heater's automatic shutdown is controlled, after can effectively preventing instant electric water heater to make moist
Or by other disturbing factors, cause to produce dry combustion method or burn out the misoperation such as component in machine, preferably protect Instant heating type electricity
Water heater.
Brief description of the drawings
The step of Fig. 1 is the control method of the instant electric water heater's automatic shutdown in one embodiment of the present invention is illustrated
Figure；
Fig. 2 is the structural representation of the instant electric water heater in one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Shown in reference picture 1, a kind of control method of instant electric water heater's automatic shutdown is comprised the following steps：
S1, the water flow switch state of detection instant electric water heater；
S2, after water flow switch is continuously turned off the time and reaches Preset Time, control instant electric water heater's automatic shutdown.
In the present embodiment, above-mentioned Preset Time refer to instant electric water heater it is not actuated before, pre-set in sight
One time value of heated electric water heater, after the time disconnects for each water flow switch, the time that water flow switch is continuously turned off
Reduced value.
The water flow switch state of the detection instant electric water heater in above-mentioned steps S1 is to carry out current by water inlet pipe
Monitoring, the water flow switch state of real-time detection water inlet pipe, when the stopping water inlet of instant electric water heater's water inlet is detected, current
Switch off；Then by step S2, after water flow switch is continuously turned off the time reaches Preset Time, instant electric water is controlled
Device automatic shutdown.
For example, the Preset Time of instant electric water heater is 30 minutes, when the water inlet for detecting instant electric water heater
Stop water inlet, to disconnect, the time that water flow switch is continuously turned off has reached Preset Time 30 minutes afterwards to water flow switch state, controls
Instant electric water heater's automatic shutdown processed.When water flow switch is detected to disconnect, and it is continuously turned off the time and is not reaching to preset
During 30 minutes time, now, instant electric water heater is in holding state, when water inlet is intake again, detects water flow switch
Reclose, instant electric water heater is again introduced into heated condition；When the time that water flow switch is continuously turned off has reached default
Between after, instant electric water heater's automatic shutdown, even if detecting water flow switch connection afterwards, instant electric water heater is still not added with
Heat, only restarting instant electric water heater's on ＆ off switch just can recovery heating function.
In the present embodiment, the acquisition methods of above-mentioned Preset Time include obtaining burning Preset Time parameter on chip.
Above-mentioned Preset Time includes 5 minutes to 2 hours.
Instant electric water heater is set by obtaining Preset Time parameter of the burning on chip by source code program
Parameter, the parameter of setting can modify as needed, the Preset Time of the parameter for getting as instant electric water heater,
The Preset Time can not be changed on the same chip, if necessary to change Preset Time, can be again by source code program
Arrange parameter, burning/recording chip is obtained, then is attached on instant electric water heater, you can redefine the pre- of instant electric water heater
If the time.
For example, when instant electric water heater is set 5 minutes by source code, burning/recording chip then gets Preset Time and is
5 minutes, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 5 minutes, instant electric water heater
Automatic shutdown.When instant electric water heater is set 30 minutes by source code, it is 30 that burning/recording chip then gets Preset Time
Minute, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 30 minutes, instant electric water heater
Automatic shutdown.When instant electric water heater is set 1 hour by source code, burning/recording chip then gets Preset Time for 1 is small
When, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 1 hour, instant electric water heater is certainly
Dynamic shutdown.When instant electric water heater is set 2 hours by source code, burning/recording chip then got Preset Time for 2 hours,
When the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 2 hours, instant electric water heater is closed automatically
Machine.
When in use, immediately heating water heater can cause the temperature in machine to raise to instant electric water heater due to heating, in day
Often in life, generally immediately heating water heater is installed in bathroom, the built-in temperature of instant electric water heater is than the temperature in bathroom
Degree is high, and after instant electric water heater stops heating, the built-in temperature of instant electric water heater lowers gradually, instant electric water
Air pressure in the machine of device slowly reduces, and finally the temperature with bathroom is in poised state；According to demand to instant electric water
Have a high regard for meaning to preset a time value, one Preset Time is set in instant electric water heater, when the current of instant electric water heater
When switching off, after the time of being continuously turned off reaches Preset Time, instant electric water heater's automatic shutdown.When the temperature in machine continues
During decline, the vapor in bathroom is slowly penetrated into machine, makes to be made moist in the machine of instant electric water heater, even if wiring board becomes in machine
Tide, will not also cause instant electric water heater to take for current open-minded, cause program to produce misoperation, preferably protect Instant heating type
Electric heater.
Detecting the water flow switch state of instant electric water heater includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
In the present embodiment, magnetic control water flow switch is provided with instant electric water heater's water inlet pipe, is examined by water flow switch
The water-carrying capacity of water inlet pipe is surveyed, when the startup threshold values for detecting water-carrying capacity (hydraulic pressure) and reaching water flow switch, water flow switch is connected, by this
To chip, chip is to send heating instructions to information transfer, and instant electric water heater is the working condition for entering heating.Water flow switch
Simple structure, small volume, reliability are high, measurement range is wide, more efficient directly perceived.
In embodiments of the present invention, when the water flow switch for detecting instant electric water heater disconnects, when water flow switch is held
Also include before the step of teasel root ETAD expected time of arrival and departure reaches Preset Time, control instant electric water heater's automatic shutdown：
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
Time and Preset Time contrast are continuously turned off by the water flow switch to instant electric water heater, when water flow switch is held
Before teasel root ETAD expected time of arrival and departure is not up to Preset Time, instant electric water heater is in holding state, when the water of instant electric water heater
Switch connection is flowed, now instant electric water heater enters heated condition.For example, the Preset Time of instant electric water heater is 30 points
Clock, after water flow switch is continuously turned off 15 minutes, now instant electric water heater is in holding state, when water flow switch is connected,
Instant electric water heater initially enters heated condition, by the state of real-time detection water flow switch, it can be ensured that instant electric
Continuous turn-off time of hydrophone contrasts with Preset Time, when instant electric water heater's water flow switch be continuously turned off the time reach it is default
Time, it is ensured that instant electric water heater's automatic shutdown.After can effectively preventing instant electric water heater to make moist, cause to produce
Dry combustion method burns out the misoperation such as component in machine, preferably protects instant electric water heater.
As shown in Fig. 2 the present invention also proposes a kind of instant electric water heater, including：
Detection unit 1, the water flow switch state for detecting instant electric water heater；
Control unit 2, for after water flow switch is continuously turned off the time and reaches Preset Time, controlling instant electric water heater
Automatic shutdown.
In the present embodiment, above-mentioned Preset Time refer to instant electric water heater it is not actuated before, pre-set heat in sight
One time value of formula electric heater, the time be each water flow switch disconnect after, the time that water flow switch is continuously turned off it is right
Ratio.
Detection unit 1 is detection component, including uses water flow sensor or water flow switch, by the sense to water-carrying capacity
Output correlation signal is answered, the inducing function of magnetic field is used.Water flow switch refer to by the monitoring to the presence or absence of current so that
The talent for swimming inductive switch of output switching signal, primarily serve current monitoring effect, in use generally and auxiliary reclay together
Composition water control system, easy to use, idle.Water flow sensor is with by the water inlet pipe in instant electric water heater
Flow of inlet water is detected, water flow sensor output pulse signal or electric current, voltage etc. by the sensing to water-carrying capacity
Signal, can determine whether the size of water-carrying capacity, water flow sensing unit simple structure, and small volume, reliability are high, measurement range is wide, more effective
Intuitively.
In the present embodiment, instant electric water heater after water flow switch conducting, is passed through using the water flow switch of dry-reed
Magnet (float) control tongue tube closure, chip (MCU) sends signal to SCR control end, and controllable silicon end turns on, while plus
Thermolamp is bright, and instant electric water heater begins to warm up.
In another embodiment, after water flow switch conducting, chip (MCU) can also be believed by sending adhesive to relay
Number, instant electric water heater is entered heated condition, it is easy to use.
In the present embodiment, instant electric water heater detects the water flow switch of instant electric water heater by detection unit 1
State, when detecting the water flow switch state and disconnecting, by control unit 2, when water flow switch be continuously turned off the time reach it is pre-
If after the time, controlling instant electric water heater's automatic shutdown.For example, the Preset Time of instant electric water heater is 30 minutes, when
When detection unit 1 detects water flow switch conducting, instant electric water heater is in heated condition；When detecting instant electric water
It is disconnection when water flow switch is detected when the water flow switch of device disconnects, and is continuously turned off the time and is not reaching to 30 points of Preset Time
Zhong Shi, now, instant electric water heater is in holding state, when water inlet is intake again, detects water flow switch and recloses,
Instant electric water heater is again introduced into heated condition；After water flow switch is continuously turned off the time reaches Preset Time 30 minutes, control
Instant electric water heater's automatic shutdown processed, even if detecting water flow switch connection afterwards, instant electric water heater does not still heat,
Only restarting instant electric water heater's on ＆ off switch just can recovery heating function.
In daily life, instant electric water heater in heating, the built-in temperature of instant electric water heater is raised, in body
In the case that product is the same, the air pressure in the machine of instant electric water heater is raised, and now the direction of gas is flowed to outside machine by machine,
Vapor in bathroom is not flowed into machine；After instant electric water heater stops heating, temperature in the machine of instant electric water heater
Degree lowers gradually, and the air pressure in the machine of instant electric water heater slowly reduces, and finally the temperature with bathroom is in poised state；
A time value is arbitrarily preset to instant electric water heater according to demand, one Preset Time is set in instant electric water heater,
When the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches Preset Time, instant electric water heater is certainly
Dynamic shutdown；When the temperature in machine continues to decline, the vapor in bathroom is slowly penetrated into machine, even if instant electric water heater
Made moist in machine, wiring board in machine may be made to become tide, current are open-minded will not also to cause instant electric water heater to take for, and program is produced
Raw misoperation, preferably protects instant electric water heater.
In the present embodiment, above-mentioned instant electric water heater includes acquiring unit, is obtained for instant electric water heater and burnt
Record the Preset Time parameter on chip., by the arrange parameter in source code program, the parameter of setting can for instant electric water heater
Modify as needed, the parameter for setting is obtained by burning/recording chip, the parameter for getting as instant electric water
The Preset Time of device, the Preset Time can not be changed on the same chip, if necessary to change Preset Time, can be again by
The arrange parameter in source code program, burning/recording chip is obtained, then is attached on instant electric water heater, redefines Instant heating type hot water
The Preset Time of device.Because modification Preset Time needs to be changed by the source code program of instant electric water heater, so
, it is necessary to set the time value of determination in source code program during design program, burning/recording chip (IC) then pacifies the chip (IC)
Loaded on the Preset Time on instant electric water heater, determining, it is impossible to changed according to the need for user.
In the present embodiment, the Preset Time of instant electric water heater includes 5 minutes to 2 hours.
For example, when instant electric water heater is set 5 minutes by source code, burning/recording chip then gets Preset Time and is
5 minutes, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 5 minutes, instant electric water heater
Automatic shutdown.When instant electric water heater is set 30 minutes by source code, it is 30 that burning/recording chip then gets Preset Time
Minute, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 30 minutes, instant electric water heater
Automatic shutdown.When instant electric water heater is set 1 hour by source code, burning/recording chip then gets Preset Time for 1 is small
When, when the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 1 hour, instant electric water heater is certainly
Dynamic shutdown.When instant electric water heater is set 2 hours by source code, burning/recording chip then got Preset Time for 2 hours,
When the water flow switch of instant electric water heater disconnects, after the time of being continuously turned off reaches 2 hours, instant electric water heater is closed automatically
Machine.
When in use, immediately heating water heater can cause the temperature in machine to raise to instant electric water heater due to heating, in day
Often in life, generally immediately heating water heater is installed in bathroom, the built-in temperature of instant electric water heater is than the temperature in bathroom
Degree is high, and after instant electric water heater stops heating, the built-in temperature of instant electric water heater lowers gradually, instant electric water
Air pressure in the machine of device slowly reduces, and finally the temperature with bathroom is in poised state；According to demand to instant electric water
Have a high regard for meaning to preset a time value, one Preset Time is set in instant electric water heater, when the current of instant electric water heater
When switching off, after the time of being continuously turned off reaches Preset Time, instant electric water heater's automatic shutdown.When the temperature in machine continues
During decline, the vapor in bathroom is slowly penetrated into machine, is made moist in the machine of instant electric water heater, even if wiring board becomes in machine
Tide, will not also cause instant electric water heater to take for current open-minded, cause program to produce misoperation, preferably protect Instant heating type
Electric heater.
In the present embodiment, the detection unit of above-mentioned instant electric water heater, the water for detecting instant electric water heater
Stream on off state includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
In the present embodiment, by being provided with water flow switch at the water inlet pipe of instant electric water heater, by current
Size, promote float movement to the operating point of water flow switch, water flow switch is connected, and by this information transfer to chip, by core
Piece sends heating instructions, and final water heater enters working condition.Water flow switch structure is simple, and small volume, reliability are high, measurement model
Enclose wide, more efficient directly perceived.
In the present embodiment, above-mentioned instant electric water heater also includes time control unit, for detecting Instant heating type electricity
After the water flow switch of water heater disconnects, water flow switch is continuously turned off time not up to Preset Time to be made；
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
When the water flow switch for detecting instant electric water heater is off-state, current are contrasted by time control unit
Switch is continuously turned off time and Preset Time, after water flow switch is continuously turned off the time reaches Preset Time, controls Instant heating type electricity
Water heater automatic shutdown；When water flow switch is continuously turned off time not up to Preset Time, now, instant electric water heater is in and treats
Machine state, when the water flow switch for detecting instant electric water heater is connected, instant electric water heater is again introduced into heated condition.
For example, the Preset Time of instant electric water heater is 30 minutes, it is Instant heating type when water flow switch is continuously turned off 15 minutes
Electric heater is continuously turned off time not up to Preset Time 30 minutes, and now instant electric water heater is in holding state, when
Water flow switch is connected, and instant electric water heater restarts to enter heated condition, by the state of real-time detection water flow switch, can
To ensure the water flow switch of instant electric water heater, when detecting water flow switch and being again off, persistently broken by water flow switch
ETAD expected time of arrival and departure is contrasted with Preset Time, reaches Preset Time when instant electric water heater's water flow switch is continuously turned off the time, it is ensured that i.e.
Heated electric water heater automatic shutdown.After can effectively preventing instant electric water heater to make moist, cause to produce dry combustion method or burning
The misoperation such as component, preferably protects instant electric water heater in bad machine.
The present invention provide a kind of instant electric water heater and its automatic shutdown control method, have the advantage that for,
A time value is preset by instant electric water heater, is reached when the water flow switch of instant electric water heater is continuously turned off the time
After Preset Time, instant electric water heater's automatic shutdown is controlled, after can effectively preventing instant electric water heater to make moist
Or by other disturbing factors, cause to produce dry combustion method or burn out the misoperation such as component in machine, preferably protect Instant heating type electricity
Water heater.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of control method of instant electric water heater's automatic shutdown, it is characterised in that comprise the following steps：
Detect the water flow switch state of instant electric water heater；
Preset Time is reached when water flow switch is continuously turned off the time, instant electric water heater's automatic shutdown is controlled.
2. the control method of instant electric water heater's automatic shutdown according to claim 1, it is characterised in that described default
The acquisition methods of time include：
Obtain Preset Time parameter of the burning on chip.
3. the control method of instant electric water heater's automatic shutdown according to claim 2, it is characterised in that described default
Time includes 5 minutes to 2 hours.
4. the control method of instant electric water heater's automatic shutdown according to claim 1, it is characterised in that the detection
The step of water flow switch state of instant electric water heater, includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
5. the control method of instant electric water heater's automatic shutdown according to claim 1, it is characterised in that when detecting
When the water flow switch of instant electric water heater disconnects, described to reach Preset Time when water flow switch is continuously turned off the time, control is
Also include before the step of heated electric water heater automatic shutdown：
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
6. a kind of instant electric water heater, it is characterised in that including：
Detection unit, the water flow switch state for detecting instant electric water heater；
Control unit, for after water flow switch is continuously turned off the time and reaches Preset Time, instant electric water heater to be automatic for control
Shutdown.
7. instant electric water heater according to claim 6, it is characterised in that described for obtaining including acquiring unit
Preset Time parameter of instant electric water heater's burning on chip.
8. instant electric water heater according to claim 7, it is characterised in that the instant electric water heater it is default when
Between include 5 minutes to 2 hours.
9. instant electric water heater according to claim 6, it is characterised in that the detection unit, is heat for detecting
The water flow switch state of formula electric heater includes：
By gathering the water-carrying capacity of water inlet pipe, the state of water flow switch is judged.
10. instant electric water heater according to claim 6, it is characterised in that the instant electric water heater also includes
Time control unit, for after the water flow switch for detecting instant electric water heater disconnects, water flow switch to be continuously turned off the time
Not up to Preset Time when；
When the water flow switch for detecting instant electric water heater is again switched on, instant electric water heater enters heated condition.
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| CN112781245A (en) * | 2020-09-23 | 2021-05-11 | 青岛经济技术开发区海尔热水器有限公司 | Shutdown control method and device, electronic equipment and storage medium |
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Application publication date: 20170531 |
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