CN105352192B - Electric water heater and control method thereof - Google Patents
Electric water heater and control method thereof Download PDFInfo
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- CN105352192B CN105352192B CN201510752257.7A CN201510752257A CN105352192B CN 105352192 B CN105352192 B CN 105352192B CN 201510752257 A CN201510752257 A CN 201510752257A CN 105352192 B CN105352192 B CN 105352192B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 294
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- 230000006870 function Effects 0.000 claims description 22
- 230000036962 time dependent Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- 239000012634 fragment Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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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
- F24H9/2021—Storage heaters
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/144—Measuring or calculating energy consumption
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/215—Temperature of the water before heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/269—Time, e.g. hour or date
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric heaters
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2101/00—Electric generators of small-scale CHP systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Fluid Mechanics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an electric water heater. The electric water heater comprises a water tank, a first sensor, a second sensor, a third sensor, a heating device and a controller. The water tank comprises a water inlet end and a water outlet end. The water tank is used for containing accumulated water. The first sensor is used for detecting first information, changing along with time, of outlet water flow of the water outlet end. The second sensor is used for detecting second information, changing along with time, of the outlet water temperature of the water outlet end. The third sensor is used for detecting the inlet water temperature of the water inlet end. The controller is connected with the first sensor, the second sensor, the third sensor and the heating device and used for calculating the heat loss caused by outlet water of the water tank according to the first information, the second information and the inlet water temperature and calculating the heating temperature according to the heat loss. The controller is used for controlling the heating device to heat the accumulated water in the water tank according to the heating temperature. The invention further provides a control method of the electric water heater. According to the electric water heater and the control method of the electric water heater, energy is saved, and intelligence and convenience are achieved.
Description
Technical field
The present invention relates to household appliance technical field, more particularly to a kind of electric heater and its control method.
Background technology
Existing electric heater is generally heated to stop heating after predetermined temperature, into keeping warm mode.It is more in order to provide
Mix and convert water, therefore predetermined temperature is general all higher, causes hot water radiator serious, electric energy is wasted, especially in user without water
In the case of.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this purpose, the present invention provides a kind of electricity
Water heater, it includes：
Water tank, the water tank includes water inlet end and water side；
First sensor, the time dependent first information of the water flow for detecting the water side；
Second sensor, time dependent second information of the leaving water temperature for detecting the water side；
3rd sensor, for detecting the inflow temperature of the water inlet end；
Heater, the heater is used to heat the retaining in the water tank；
The control being connected with the first sensor, the second sensor, the 3rd sensor and the heater
Device processed；
The controller is used to calculate the water tank according to the first information, second information and the inflow temperature
Thermal loss caused by water outlet, and heating-up temperature is calculated according to the thermal loss；The controller is additionally operable to according to described
Heater described in heating and temperature control is to the retaining heating in the water tank.
In some embodiments, the first information includes function of the water flow with regard to the time；Described second
Information includes function of the leaving water temperature with regard to the time.
In some embodiments, the controller is used to control the electric heater into mode of learning or exit study
Pattern is entering intelligent control mode；
The controller is used to control the heating devices heat according to predetermined temperature under the mode of learning.
In some embodiments, the electric heater includes the input module being connected with the controller；The input
Module is used for receiving user's input so that the controller is into the mode of learning or exits the mode of learning to enter
State intelligent control mode.
In some embodiments, the first information includes function of the water flow with regard to the time；
When the controller is not less than predetermined amount of flow for detecting the water flow under the intelligent control mode
Into using water state, and heated with the first power with controlling the heater under water state described；
The controller be additionally operable to the intelligent control mode detect the water flow be consistently less than it is described predetermined
Flow enters keeping warm mode when reaching preset duration, and the heater is controlled under the keeping warm mode with less than described
Second Power operation of the first power.
In some embodiments, the controller is corresponding for recording the use water state under the mode of learning
Use time；When the controller is additionally operable to obtain prediction water according to the use time under the intelligent control mode
Between, and water state is used into described according to the prediction water time under the intelligent control mode.
In some embodiments, the controller adds for controlling the heater stop under the keeping warm mode
Heat.
In some embodiments, the first sensor is arranged at the water inlet end；The first sensor is used to examine
Survey flow of inlet water to obtain the water flow.
The present invention also provides a kind of control method of electric water heater, comprises the following steps：
Into mode of learning, the retaining heating in heater feed-tank is controlled according to predetermined temperature.
Detect the inflow temperature of the water tank of the electric heater, the time dependent first information of water flow and go out water temperature
Spend time dependent second information；
Heat caused by the water tank water outlet is calculated according to the inflow temperature, the first information and second information
Loss；
Heating-up temperature is calculated according to the thermal loss；
Exit mode of learning；
Into intelligent control mode, heater is to the storage in the water tank according to the heating and temperature control
Water is heated.
In some embodiments, the first information includes function of the water flow with regard to the time；
The control method of electric water heater is further comprising the steps of：
Entrance water state or keeping warm mode are selected according to the first information：
If the water flow is not less than predetermined amount of flow, entrance water state, described described with controlling under water state
Heater is heated with the first power；And
If the water flow is consistently less than the predetermined amount of flow reaches preset duration, into keeping warm mode, and in institute
State and the heater is controlled under keeping warm mode with less than the second Power operation of first power.
In some embodiments, the control method of electric water heater is further comprising the steps of：
The corresponding use time of the use water state is recorded under the mode of learning；
Under the intelligent control mode, the prediction water time is obtained according to the use time；And
Under the intelligent control mode, water state is used into described according to the prediction water time.
In some embodiments, the heater stop heating is controlled under the keeping warm mode.
In some embodiments, the control method of electric water heater is further comprising the steps of：
Receiving user's input is with into the mode of learning；Or
Receiving user's input is exiting the mode of learning with into the intelligent control mode.
The electric heater of embodiment of the present invention is calculated by thermal loss caused by calculating water outlet and according to thermal loss
To be heated to retaining according to heating-up temperature, such electric heater can be heated heating-up temperature according to the water habits of user, and
Retaining need not be heated to too high temperature, the use demand of user can be met, the radiating of retaining can be reduced again so as to save
Electric energy, solves some problems of existing electric heater.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
Substantially with it is easy to understand, wherein：
Fig. 1 is the overall structure diagram of the electric heater of embodiment of the present invention.
Fig. 2 is the high-level schematic functional block diagram of the electric heater of embodiment of the present invention.
Fig. 3 is the flow chart of the control method of electric water heater of embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Description purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ".
In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect or can mutually communicate；Can be joined directly together, it is also possible to by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact but by it including the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and oblique upper, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or arranging
Relation.Additionally, the invention provides various specific technique and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Refer to Fig. 1 and Fig. 2, the electric heater 100 of embodiment of the present invention include water tank 10, first sensor 20, the
Two sensors 30,3rd sensor 40, heater 50 and controller 60.Wherein, water tank 10 includes water inlet end 11 and water side
13, water tank 10 is used for holding retaining.First sensor 20 is used for detecting the water flow time dependent first of water side 13
Information, function of the discharge generally noted above with regard to the time.Second sensor 30 is used to detect the leaving water temperature of water side 13 at any time
Between change the second information, function of the coolant-temperature gage generally noted above with regard to the time.3rd sensor 40 is used to detect water inlet end 11
Inflow temperature.Heater 50 is used for the retaining in heating water tank 10 to supply user's hot water.Controller 60 and first sensor
20th, second sensor 30,3rd sensor 40 and heater 50 connect, for according to the first information, the second information and water inlet
Thermal loss caused by the water outlet of temperature computation water tank 10, and heating-up temperature is calculated according to thermal loss.
Because the water outlet of water side 13 is retaining outflow, leaving water temperature namely retaining temperature.Please join Fig. 1, in some enforcements
In mode, second sensor 30 includes temperature-sensing pipe, is arranged in water tank 10, and the retaining temperature for measuring is leaving water temperature.Additionally,
Second sensor 30 is connected with controller 60, when controller 60 is heated according to heating-up temperature to retaining, by the anti-of leaving water temperature
Present to judge whether to reach heating-up temperature.It is same thus, when controller 60 is by second sensor 30 come under keeping warm mode
It is retaining temperature to carve monitoring leaving water temperature.Heater 50 can be magnesium rod, and retaining is heated.Water side 13 includes and water
The outlet pipe of the connection of case 10.
Thermal loss is that the water used up of user is heated resulting energy, after heating in other words with heating before energy difference
Value.Energy loss can represent the amount that the whole water utilizing process of user is consumed, thus can by suitable algorithm according to
Energy loss obtains the heating-up temperature of electric heater 100.Controller 60 is according to the feed-tank 10 of heating and temperature control heater 50
Interior retaining heating.
Traditional electric heater 100 often presets too high heating-up temperature, and one side user cannots be used up so much hot water,
Cause to waste electric energy, on the other hand when user is without water, too high water temperature causes radiating to increase and wastes electric energy.It is of the invention real
The electric heater 100 for applying mode sets suitable heating-up temperature according to the water habits of user, can meet client's to reach
Avoid heating-up temperature too high simultaneously with coolant-temperature gage demand and waste the effect of electric energy.
In some embodiments, the first information includes function of the water flow with regard to the time, and the second packet includes water
Function of the temperature with regard to the time.Calculate thermal loss during, inflow temperature t2 be the temperature of cold water be it is substantially invariable,
But due to user's water, water inlet end 11 has cold water to supplement inlet water tank 10, causes retaining to be lowered the temperature, so that water side 13 goes out
Coolant-temperature gage is time dependent, and in addition water flow, because of the artificial regulatory of user, is also time dependent.Therefore can not letter
Alone (t1-t2) fTCWaterTo calculate, and calculated with the method for integration.Wherein t1 is leaving water temperature, and t2 is into water temperature
Degree, f is water flow, and T is to use water time, CWaterFor the specific heat capacity of water.
In some embodiments, controller 60 includes programmable logic controller (PLC), it is programmed above-mentioned to calculate
Integral operation.By repeatedly calculating thermal loss, it is estimated that user is general every time to use water consume energy, so as to calculate conjunction
Suitable heating-up temperature, can meet the water demand of user, does not produce excessive hot water and wastes electric energy as far as possible again.
For example, by integral operation draw each use water consume of user can i.e. thermal loss Q be about 1kWh, the use of user
Coolant-temperature gage is 40 DEG C, and inflow temperature is 20 DEG C, and the capacity of water tank 10 is 60L, i.e. retaining 60kg.Heat during user's water is ignored
In the case that device 50 is heated, needed the calculating process of heating-up temperature t for being heated to retaining as follows before user's water：
(t-40℃)MWater×CWater=Q
I.e.：(t-40℃)60×4.2×103=1 × 3.6 × 106
：t≈54.3℃
If consider heating of the electric heater 100 in user's water utilizing process, it is assumed that the highest of electric heater 100 adds hot merit
Rate P is 2000W, and each use water time T of user is about 10 minutes i.e. 600 second, needed to be heated to retaining before user's water
Heating-up temperature t ' calculating process it is as follows：
(t’-40℃)MWater×CWater+ T × P=Q
I.e.：(t’-40℃)60×4.2×103+ 600 × 3000=1 × 3.6 × 106
：t’≈47.1℃
If that is, not considering heating of the electric heater 100 in user's water utilizing process, heating-up temperature is arranged on
More than 54.3 DEG C, it is possible to meet the water demand generally of client；If considering, electric heater 100 uses water mistake in user
Heating in journey, heating-up temperature is arranged on more than 47.1 DEG C, it is possible to meet the water demand generally of client.
The heating-up temperature that the above is said, that is, refer to the heating-up temperature of electric heater 100 in user's water utilizing process, also refers to user not
With the holding temperature of electric heater during water 100.It can be seen that, according to the calculated heating-up temperature of user's water demand less than tradition electricity
The generally default heating-up temperature of water heater 100, such as 75 DEG C, therefore greatly reduce waste of energy.
Preferably, in some embodiments, electric heater 100 switches in both of which：Mode of learning and intelligence control
Molding formula.Under mode of learning, controller 60 calculates the water outlet of water tank 10 according to the first information, the second information and inflow temperature to be caused
Thermal loss, and according to thermal loss calculate heating-up temperature.Then, controller 60 exits mode of learning and enters Based Intelligent Control
Pattern, retaining is heated under intelligent control mode according to heating and temperature control heater 50.
Please join Fig. 1 and Fig. 2, in some embodiments, electric heater 100 includes the input module being connected with controller 60
70.Input module 70 is for receiving user's input so that controller 60 is into mode of learning or exits mode of learning to enter intelligence
Control model.In some embodiments, input module 70 includes TIP 71, which is provided with intelligent control switch 711, uses
Family was grown by 6 seconds to intelligent control switch 711 so that controller 60 is grown by 6 seconds to exit into mode of learning or under mode of learning
Mode of learning enters intelligent control mode.
Under mode of learning, due to electric heater 100, also no the water habits of user are not arrived in study, so just using common electricity
The mode of heating of water heater 100, enters in user's water and uses water state, such as 75 DEG C, right according to a default heating-up temperature
Retaining is heated, and without temperature return difference.Larger temperature return difference is adopted under the dry keeping warm mode of user, such as 5 DEG C, and
Relatively low operation power, to retaining Heat preservation is carried out.Temperature adds difference to determine that electric heater 100 restarts the temperature for heating,
For example, temperature return difference is set to 5 DEG C under keeping warm mode, and heating-up temperature is 75 DEG C, i.e. the control of controller 60 heater 50 heating stores
Water to 75 DEG C stop heating, treat that retaining radiating and cooling enters to restart heating to 75-5=70 DEG C.It is appreciated that under keeping warm mode
Relatively low heating-up temperature and larger temperature return difference more saves electric energy.
Similar, in some embodiments, electric heater 100 is same with water state under intelligent control mode
Switch with keeping warm mode.Heated using the first higher power heater 50 is controlled with water state controller 60, protected
Heater 50 is controlled under temperature state and adopts larger temperature return difference and the second Power operation less than the first power.
Either in mode of learning also in the case where being intelligent control mode, controller 60 is selected into use according to the first information
Water state or keeping warm mode.The first information includes function of the water flow with regard to the time.When detect water flow be not less than it is pre-
During constant flow, the entrance water state of controller 60；When detecting water flow and being consistently less than predetermined amount of flow and reach preset duration,
Controller 60 enters keeping warm mode.Predetermined amount of flow is a smaller value, such as 1mL/s, setting predetermined amount of flow as threshold value be in order to
Prevent as gondola water faucet is damaged or the situation not fastening and drip is misjudged and entrance water state.Preset duration can be 10 minutes,
Frequently opening and closing gondola water faucet causes controller 60 frequently being switched between water state and keeping warm mode in prevent user's bathing experience.
The time of some user's water is very regular, such as daily in the shower of identical time period.In this case can be with
Taking can predict user with the embodiment of water time more to save electric energy.In some embodiments, controller 60 can
Use the time started of water every time with the corresponding use time of water state of the record under mode of learning, i.e. user, then in intelligent control
The prediction water time is obtained according to use time under molding formula, and is entered with the water time according to prediction under intelligent control mode
Use water state.
Preferably, in some embodiments, controller 60 controls heater 50 under keeping warm mode and stops heating.By
It is very regular with water in user, heating can be stopped under the dry keeping warm mode of user, to prediction water time control
Device 60 is entered back into and begun to warm up with water state.Particularly, the time for beginning to warm up should be according to the watt level of electric heater 100 ratio
Prediction water time advance 0.5-1 hours, retaining is heated to into heating-up temperature in user's water.
In some embodiments, electric heater 100 was learnt with 7 days as the cycle, therefore mode of learning will at least 7
My god.Had in one week 7 days, the daily life system of modern often presents the regularity with 7 days as cycle, for example certain company's white collar
Friday typically works overtime to 8 points, and the time that he has a bath is about 9 points, and each Friday is nearly all such.Electric heater 100 leads to
Crossing study can grasp the work and rest rule of this user, so as to begin to warm up in 8 points on every Fridays or 8 thirty, with he about 9 points
Make retaining reach heating-up temperature during with water, be user-friendly to.In some embodiments mode of learning continues more number of days,
Such as 28 days, to facilitate to user being counted with the water time weekly, estimated using mathematical methods such as averageds and more closed
The water time is used in the prediction of the user of reason.
Please join Fig. 1, in some embodiments, the water yield of retaining is substantially invariable in water tank 10, is entered during user's water
The continuous water delivery of water end (W.E.) 11 is into water tank 10 so that retaining is maintained at predetermined amount of water, that is to say, that water inlet end 11 can with water side
13 go out the essentially identical water intake velocity water inlet of water speed.In such a case, it is possible to first sensor 20 is arranged on into water inlet end
11, first sensor 20 is used to detect flow of inlet water to obtain water flow.So arrange compared with first sensor 20 is arranged
Benefit in water side 13 is that the water outlet that can prevent the higher temperature of water side 13 scorches first sensor 20.
Water inlet end 11 includes water inlet pipe and its with the interface of water tank 10 etc., for transmitting cold water inlet water tank 10.First sensing
Device 20 is used for detecting the water flow of water inlet end 11 that unit is cm3/s.In general, when user's water, water is from water outlet
End 13 is flowed out, and water inlet end 11 can in time be mended and be filled with water to water tank 10, to ensure water tank 10 in always full water pattern.Therefore, it can
Understand, with water state, the inflow of water inlet end 11 is exactly water flow, and flow of inlet water is also approximately equal to water flow.Use water
State refers to pattern of user when with water residing for controller 60, is during user's water and without the control mode of controller during water 60
It is different, therefore controller 60 switching over between water state and keeping warm mode.Controller 60 is by detection water end (W.E.)
Water flow decides whether entrance water state judging client whether with water.
In sum, the electric heater of embodiment of the present invention is introduced into mode of learning, and under mode of learning water mould is used
Formula detection inflow temperature, leaving water temperature, water flow and its corresponding time, water consume energy is used for calculating, and then calculate heating
Temperature.Controller exits mode of learning and enters intelligent control mode, and according to heating-up temperature and water temperature is gone out under intelligent control mode
Degree control heating devices heat.Therefore, whether under water-use model or under holding mode, the electric hot water of embodiment of the present invention
Device is all heated according to the water habits of user, without retaining is heated to into too high temperature, can meet making for user
With demand, the radiating of retaining can be reduced again so as to save significantly on electric energy.
The control method of electric heater 100 of embodiment of the present invention is comprised the following steps：
S1:Into mode of learning, the retaining heating in the feed-tank 10 of heater 50 is controlled according to predetermined temperature.
S2:The inflow temperature of water tank 10 of detection electric heater 100, the time dependent first information of water flow and go out
Time dependent second information of coolant-temperature gage；
S3:Thermal loss caused by the water outlet of water tank 10 is calculated according to inflow temperature, the first information and the second information；
S4:Heating-up temperature is calculated according to thermal loss；
S5:Exit mode of learning；
S6:Into intelligent control mode, heated according to the retaining in the feed-tank 10 of heating and temperature control heater 50.
In some embodiments, the first information includes function of the water flow with regard to the time, the controlling party of electric heater 100
Method is further comprising the steps of：
Entrance water state or keeping warm mode are selected according to the first information：
If water flow is not less than predetermined amount of flow, entrance water state, with heater 50 is controlled under water state with
First power is heated；And
If water flow is consistently less than predetermined amount of flow reaches preset duration, into keeping warm mode, and under keeping warm mode
Control heater 50 is with less than the second Power operation of the first power.
In some embodiments, the control method of electric heater 100 is further comprising the steps of：
The record corresponding use time of water state under mode of learning；
Under intelligent control mode, the prediction water time is obtained according to use time；And
Under intelligent control mode, according to prediction water time entrance water state.
In some embodiments, heater 50 is controlled under keeping warm mode and stops heating.
In some embodiments, the control method of electric heater 100 is further comprising the steps of：
Receiving user's input is entering mode of learning；Or
Receiving user's input is exiting mode of learning to enter intelligent control mode.
Not deployed other parts, refer to embodiment of above in the control method of electric heater 100 of present embodiment
Electric heater 100 corresponding part, here is no longer developed in details in.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement
The description of mode ", " example ", " specific example " or " some examples " etc. means to combine the tool that the embodiment or example are described
Body characteristicses, structure, material or feature are contained at least one embodiment of the present invention or example.In this manual,
Identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the specific features of description, knot
Structure, material or feature can in an appropriate manner be combined in any one or more embodiments or example.
In flow chart or here any process described otherwise above or method description are construed as, expression includes
It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
In flow charts expression or here logic described otherwise above and/or step, for example, are considered use
In the order list of the executable instruction for realizing logic function, in may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (as computer based system, the system including processor or other can hold from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or with reference to these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
The dress that defeated program is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：With the electricity that one or more are connected up
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can thereon print described program or other are suitable
Medium, because for example by carrying out optical scanner to paper or other media edlin, interpretation can then be entered or if necessary with it
His suitable method is processed to electronically obtain described program, in being then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realizing.For example, if realized with hardware, and in another embodiment, can be with well known in the art
Any one of row technology or their combination are realizing：With for realizing the logic gates of logic function to data-signal
Discrete logic, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Suddenly the hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated mould
Block both can be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized and as independent production marketing or when using using in the form of software function module, it is also possible to be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (13)
1. a kind of electric heater, it is characterised in that include：
Water tank, the water tank includes water inlet end and water side；
First sensor, the time dependent first information of the water flow for detecting the water side；
Second sensor, time dependent second information of the leaving water temperature for detecting the water side；
3rd sensor, for detecting the inflow temperature of the water inlet end；
Heater, the heater is used to heat the retaining in the water tank；
The controller being connected with the first sensor, the second sensor, the 3rd sensor and the heater；
The controller is used to calculate the water tank water outlet according to the first information, second information and the inflow temperature
Caused thermal loss, and heating-up temperature is calculated according to the thermal loss；The controller is additionally operable to according to the heating
Heater described in temperature control is to the retaining heating in the water tank.
2. electric heater as claimed in claim 1, it is characterised in that the first information include the water flow with regard to when
Between function；Second information includes function of the leaving water temperature with regard to the time.
3. electric heater as claimed in claim 1, it is characterised in that the controller is used to controlling the electric heater entering
Mode of learning exits mode of learning to enter intelligent control mode；
The controller is used to control the heating devices heat according to predetermined temperature under the mode of learning.
4. electric heater as claimed in claim 3, it is characterised in that the electric heater includes what is be connected with the controller
Input module；The input module is for receiving user's input so that the controller is into the mode of learning or exits described
Mode of learning is with into the intelligent control mode.
5. electric heater as claimed in claim 3, it is characterised in that the first information includes water flow with regard to the time
Function；
The controller is used to detect under the intelligent control mode when water flow is not less than predetermined amount of flow to enter
With water state, and heated with the first power with controlling the heater under water state described；
The controller is additionally operable to detect the water flow in the intelligent control mode and is consistently less than the predetermined amount of flow
Keeping warm mode is entered when reaching preset duration, and the heater is controlled under the keeping warm mode with less than described first
Second Power operation of power.
6. electric heater as claimed in claim 5, it is characterised in that the controller is used to be recorded under the mode of learning
The corresponding use time of the use water state；When the controller is additionally operable under the intelligent control mode according to described use
Between obtain the prediction water time, and enter described with watery with the water time according to the prediction under the intelligent control mode
State.
7. electric heater as claimed in claim 6, it is characterised in that the controller is used to be controlled under the keeping warm mode
The heater stop heating.
8. electric heater as claimed in claim 1, it is characterised in that the first sensor is arranged at the water inlet end；Institute
First sensor is stated for detecting flow of inlet water to obtain the water flow.
9. a kind of control method of electric water heater, it is characterised in that comprise the following steps：
Into mode of learning, the retaining heating in heater feed-tank is controlled according to predetermined temperature；
Detect inflow temperature, the time dependent first information of water flow and the leaving water temperature of the water tank of the electric heater with
Second information of time change；
Heat caused by the water tank water outlet is calculated according to the inflow temperature, the first information and second information to damage
Lose；
Heating-up temperature is calculated according to the thermal loss；
Exit mode of learning；
Into intelligent control mode, heater adds to the retaining in the water tank according to the heating and temperature control
Heat.
10. control method of electric water heater as claimed in claim 9, it is characterised in that the first information includes water flow
With regard to the function of time；
The control method of electric water heater is further comprising the steps of：
Entrance water state or keeping warm mode are selected according to the first information：
If the water flow is not less than predetermined amount of flow, entrance water state, described with controlling the heating under water state
Device is heated with the first power；And
If the water flow is consistently less than the predetermined amount of flow reaches preset duration, into keeping warm mode, and in the guarantor
The heater is controlled under temperature state with less than the second Power operation of first power.
11. control method of electric water heater as claimed in claim 10, it is characterised in that further comprising the steps of：
The corresponding use time of the use water state is recorded under the mode of learning；
Under the intelligent control mode, the prediction water time is obtained according to the use time；And
Under the intelligent control mode, water state is used into described according to the prediction water time.
12. control method of electric water heater as claimed in claim 11, it is characterised in that control under the keeping warm mode described
Heater stop is heated.
13. control method of electric water heater as claimed in claim 9, it is characterised in that further comprising the steps of：
Receiving user's input is with into the mode of learning；Or
Receiving user's input is exiting the mode of learning with into the intelligent control mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510752257.7A CN105352192B (en) | 2015-11-06 | 2015-11-06 | Electric water heater and control method thereof |
| PCT/CN2016/080504 WO2017075948A1 (en) | 2015-11-06 | 2016-04-28 | Electric water heater and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510752257.7A CN105352192B (en) | 2015-11-06 | 2015-11-06 | Electric water heater and control method thereof |
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| CN105352192A CN105352192A (en) | 2016-02-24 |
| CN105352192B true CN105352192B (en) | 2017-05-10 |
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| WO (1) | WO2017075948A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352192B (en) * | 2015-11-06 | 2017-05-10 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
| CN106123305B (en) * | 2016-07-29 | 2019-02-01 | 芜湖美的厨卫电器制造有限公司 | The method for heating and controlling and electric heater of electric heater |
| CN108286819B (en) * | 2017-01-09 | 2020-10-16 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
| CN107202428B (en) * | 2017-06-28 | 2020-10-16 | 合肥工业大学 | State estimation method for single electric water heater |
| CN107560173A (en) * | 2017-08-03 | 2018-01-09 | 广东美的暖通设备有限公司 | Heat pump water-heating machine and its control method, control device |
| CN107975945B (en) * | 2017-11-24 | 2021-03-23 | 北京小米移动软件有限公司 | Control method and device of water heater |
| CN108692463B (en) * | 2018-06-04 | 2024-02-02 | 芜湖美的厨卫电器制造有限公司 | Water heater control method and system and water heater |
| CN109595787A (en) * | 2019-01-14 | 2019-04-09 | 广东盈科电子有限公司 | A kind of automatic adjustment controlling means of the Thermostatic water heaters that temperature drift is calibrated automatically and the Thermostatic water heaters |
| CN112263143B (en) * | 2020-10-23 | 2022-06-14 | 佛山市顺德区美的饮水机制造有限公司 | Method and device for instant heating type drinking equipment, storage medium and processor |
| CN113551427B (en) * | 2021-07-20 | 2022-07-12 | 珠海格力电器股份有限公司 | Control method and device of water heater, water heater and storage medium |
| CN115111782A (en) * | 2022-06-22 | 2022-09-27 | 中山火炬职业技术学院 | Bathing duration prediction method based on electric load of water storage type electric water heater |
| CN115191833B (en) * | 2022-07-27 | 2024-05-03 | 深圳安吉尔饮水产业集团有限公司 | Control algorithm of instant heating system with dynamic learning function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4036258B2 (en) * | 2002-05-29 | 2008-01-23 | 三菱電機株式会社 | Water heater and its boiling-up control method |
| JP3938333B2 (en) * | 2002-06-14 | 2007-06-27 | 三洋電機株式会社 | Water heater |
| CN201229050Y (en) * | 2008-04-29 | 2009-04-29 | 张方利 | Full-automatic constant temperature type electric water heater |
| AU2012262613B2 (en) * | 2011-06-03 | 2015-07-09 | Rheem Australia Pty Limited | A water heater controller or system |
| CN103925703B (en) * | 2014-01-16 | 2017-04-12 | 中山市汉功电器有限公司 | Control method of electric water heater |
| CN105352192B (en) * | 2015-11-06 | 2017-05-10 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
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| CN105352192A (en) | 2016-02-24 |
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Effective date of registration: 20220908 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Meimei Kitchen and Sanitary Industrial Park, Wanchun East Road, East District, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |
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