CN105352192A - Electric water heater and control method thereof - Google Patents
Electric water heater and control method thereof Download PDFInfo
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- CN105352192A CN105352192A CN201510752257.7A CN201510752257A CN105352192A CN 105352192 A CN105352192 A CN 105352192A CN 201510752257 A CN201510752257 A CN 201510752257A CN 105352192 A CN105352192 A CN 105352192A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 288
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 230000006870 function Effects 0.000 claims description 21
- 230000036962 time dependent Effects 0.000 claims description 14
- 230000008569 process Effects 0.000 description 11
- 238000003860 storage Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
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- 238000012512 characterization method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000008236 heating water Substances 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, particularly relate to a kind of electric heater and control method thereof.
Background technology
Existing electric heater stops heating after being generally heated to predetermined temperature, enters keeping warm mode.Be watered to provide more mixed, therefore predetermined temperature is general all higher, causes hot water radiator serious, waste electric energy, especially user without under regimen condition.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention provides a kind of electric heater, it comprises:
Water tank, described water tank comprises water inlet end and water side;
First sensor, the time dependent first information of the water flow for detecting described water side;
Second sensor, time dependent second information of the leaving water temperature for detecting described water side;
3rd sensor, for detecting the inflow temperature of described water inlet end;
Heater, described heater is for heating the retaining in described water tank;
The controller be connected with described first sensor, described second sensor, described 3rd sensor and described heater;
The thermal loss that described controller causes for calculating described water tank water outlet according to the described first information, described second information and described inflow temperature, and calculate heating-up temperature according to described thermal loss; The described retaining heating in described water tank also given by described controller for heater according to described heating and temperature control.
In some embodiments, the described first information comprises the function of described water flow about the time; Described second information comprises the function of described leaving water temperature about the time.
In some embodiments, described controller enters mode of learning for controlling described electric heater or exits mode of learning to enter intelligent control mode;
Described controller is used for controlling described heating devices heat according to predetermined temperature under described mode of learning.
In some embodiments, described electric heater comprises the input module be connected with described controller; Described input module is for receiving user's input to make described controller enter described mode of learning or to exit described mode of learning to enter described intelligent control mode.
In some embodiments, the described first information comprises the function of water flow about the time;
Described controller is used under described intelligent control mode, detect that described water flow enters when being not less than predetermined amount of flow with water state, and under described water state, controls described heater with the first power heating;
Described controller also for detecting that in described intelligent control mode described water flow continues to enter keeping warm mode when reaching preset duration lower than described predetermined amount of flow, and controls described heater to be less than the second Power operation of described first power under described keeping warm mode.
In some embodiments, described controller is used for recording service time corresponding to described water state under described mode of learning; Described controller also under described intelligent control mode according to obtaining the prediction water time described service time, and enter described water state according to the described prediction water time under described intelligent control mode.
In some embodiments, described controller is used under described keeping warm mode, control the heating of described heater stop.
In some embodiments, described first sensor is arranged at described water inlet end; Described first sensor is for detecting flow of inlet water to obtain described water flow.
The present invention also provides a kind of control method of electric water heater, comprises the following steps:
Enter mode of learning, control the retaining heating in heater feed-tank according to predetermined temperature.
Detect the inflow temperature of the water tank of described electric heater, the time dependent first information of water flow and time dependent second information of leaving water temperature;
The thermal loss that described water tank water outlet causes is calculated according to described inflow temperature, the described first information and described second information;
Heating-up temperature is calculated according to described thermal loss;
Exit mode of learning;
Enter intelligent control mode, according to described heating and temperature control, the described retaining heating in described water tank given by heater.
In some embodiments, the described first information comprises the function of water flow about the time;
Described control method of electric water heater is further comprising the steps of:
Select to enter with water state or keeping warm mode according to the described first information:
If described water flow is not less than predetermined amount of flow, then enters with water state, under described water state, control described heater with the first power heating; And
If described water flow continues to reach preset duration lower than described predetermined amount of flow, then enter keeping warm mode, and under described keeping warm mode, control described heater to be less than the second Power operation of described first power.
In some embodiments, described control method of electric water heater is further comprising the steps of:
Service time corresponding to described water state is recorded under described mode of learning;
Under described intelligent control mode, obtain the prediction water time according to described service time; And
Under described intelligent control mode, enter described water state according to the described prediction water time.
In some embodiments, under described keeping warm mode, control the heating of described heater stop.
In some embodiments, described control method of electric water heater is further comprising the steps of:
Receive user's input to enter described mode of learning; Or
Receive user's input to exit described mode of learning to enter described intelligent control mode.
The electric heater of embodiment of the present invention is by the thermal loss that calculates water outlet and cause and calculate heating-up temperature to heat retaining according to heating-up temperature according to thermal loss, such electric heater can heat according to the water habits of user, and retaining will not be heated to too high temperature, the user demand of user can be met, the heat radiation of retaining can be reduced again thus save electric energy, solving some problem of existing electric heater.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the overall structure schematic 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.
Detailed description of the invention
Be described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more described features.In describing the invention, the implication of " multiple " is 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 ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection or can communication mutually; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or reference letter, this repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can 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 comprises water tank 10, first sensor 20, second sensor 30, the 3rd sensor 40, heater 50 and controller 60.Wherein, water tank 10 comprises water inlet end 11 and water side 13, and water tank 10 is used for holding retaining.First sensor 20 is used for detecting the time dependent first information of the water flow of water end (W.E.) 13, refers generally to the function of water flow about the time.Second sensor 30, for detecting time dependent second information of the leaving water temperature of water end (W.E.) 13, refers generally to the function of leaving water temperature about the time.3rd sensor 40 is for detecting the inflow temperature of water inlet end 11.The retaining that heater 50 is used in heating water tank 10 is to supply user's hot water.Controller 60 is connected with first sensor 20, second sensor 30, the 3rd sensor 40 and heater 50, be used for calculating according to the first information, the second information and inflow temperature the thermal loss that water tank 10 water outlet causes, and calculate heating-up temperature according to thermal loss.
Due to water outlet and the retaining outflow of water side 13, leaving water temperature is also retaining temperature.Please refer to the drawing 1, in some embodiments, the second sensor 30 comprises temperature-sensing pipe, is arranged in water tank 10, and the retaining temperature recorded is leaving water temperature.In addition, the second sensor 30 is connected with controller 60, when controller 60 heats retaining according to heating-up temperature, judges whether to reach heating-up temperature by the feedback of leaving water temperature.So same under keeping warm mode, controller 60 is by the second sensor 30 moment monitoring leaving water temperature and retaining temperature.Heater 50 can be magnesium rod, heats retaining.Water side 13 comprises the outlet pipe be connected with water tank 10.
The water that thermal loss and user use up the energy that obtains by heating, in other words after heating with heating before energy differences.The amount that the whole water utilizing process of energy loss energy representative of consumer consumes, therefore can obtain the heating-up temperature of electric heater 100 according to energy loss by suitable algorithm.Controller 60 is according to the retaining heating in heating and temperature control heater 50 feed-tank 10.
Traditional electric heater 100 often preset too high heating-up temperature, user cannots be used up so much hot water on the one hand, and cause wasting electric energy, on the other hand when user is without water, too high water temperature causes heat radiation increase and waste electric energy.The electric heater 100 of embodiment of the present invention sets suitable heating-up temperature according to the water habits of user, can meet client simultaneously avoiding heating-up temperature too high by coolant-temperature gage demand to reach and waste the effect of electric energy.
In some embodiments, the first information comprises the function of water flow about the time, and the second information comprises the function of leaving water temperature about the time.In the process calculating thermal loss, the temperature of inflow temperature t2 and cold water is substantially invariable, but due to along with user's water, water inlet end 11 has cold water to supplement inlet water tank 10, retaining is caused to be lowered the temperature, thus making the leaving water temperature of water side 13 be time dependent, water flow is because of the artificial regulatory of user in addition, is also time dependent.Therefore (t1-t2) fTC can not simply be used
watercalculate, and calculate by the method for integration.Wherein t1 is leaving water temperature, and t2 is inflow temperature, and f is water flow, T for use the water time, C
waterfor specific heat of water holds.
In some embodiments, controller 60 comprises programmable logic controller (PLC), programmes to calculate above-mentioned integral operation to it.By repeatedly calculating thermal loss, user's general water power consumption at every turn can be estimated, thus calculate suitable heating-up temperature, so that the water demand of user can be met, do not produce too much hot water and waste electric energy as far as possible again.
Such as, by integral operation draw user each be about 1kWh with water power consumption and thermal loss Q, user's is 40 DEG C with coolant-temperature gage, and inflow temperature is 20 DEG C, and water tank 10 capacity is 60L, i.e. retaining 60kg.Heater 50 heats during ignoring user's water, before user's water, need the computational process of heating-up temperature t retaining be heated to as follows:
(t-40 DEG C) M
water× C
water=Q
That is: (t-40 DEG C) 60 × 4.2 × 10
3=1 × 3.6 × 10
6
: t ≈ 54.3 DEG C
If consider the heating of electric heater 100 in user's water utilizing process, suppose that the highest heating power P of electric heater 100 is 2000W, what user was each is about 10 minutes namely 600 seconds with water time T, needs the computational process of the heating-up temperature t ' retaining be heated to as follows before user's water:
(t '-40 DEG C) M
water× C
water+ T × P=Q
That is: (t '-40 DEG C) 60 × 4.2 × 10
3+ 600 × 3000=1 × 3.6 × 10
6
: t ' ≈ 47.1 DEG C
That is, if do not consider the heating of electric heater 100 in user's water utilizing process, heating-up temperature is arranged on more than 54.3 DEG C, just can meets the water demand generally of client; If consider the heating of electric heater 100 in user's water utilizing process, heating-up temperature is arranged on more than 47.1 DEG C, just can meet the water demand generally of client.
Above said heating-up temperature, namely refers to the heating-up temperature of electric heater 100 in user's water utilizing process, also refers to the holding temperature of user without electric heater during water 100.Visible, the heating-up temperature that the heating-up temperature calculated according to user's water demand is preset usually lower than traditional electrical water heater 100, as 75 DEG C, therefore greatly reduces waste of energy.
Preferably, in some embodiments, electric heater 100 switches in two kinds of patterns: mode of learning and intelligent control mode.Under mode of learning, the thermal loss that controller 60 causes according to the water outlet of the first information, the second information and inflow temperature calculating water tank 10, and calculate heating-up temperature according to thermal loss.Then, controller 60 exits mode of learning and enters intelligent control mode, under intelligent control mode, heat retaining according to heating and temperature control heater 50.
Please refer to the drawing 1 and Fig. 2, in some embodiments, electric heater 100 comprises the input module 70 be connected with controller 60.Input module 70 is for receiving user's input to make controller 60 enter mode of learning or to exit mode of learning to enter intelligent control mode.In some embodiments, input module 70 comprises TIP 71, which is provided with intelligent control switch 711, user grows by 6 seconds intelligent control switch 711 to make controller 60 enter mode of learning or to grow under mode of learning to enter intelligent control mode by 6 seconds to exit mode of learning.
Under mode of learning, because electric heater 100 does not also learn the water habits of user, so just adopt the mode of heating of common electric heater 100, enter with water state when user's water, according to a default heating-up temperature, as 75 DEG C, retaining is heated, and without temperature return difference.Larger temperature return difference is adopted under the dry keeping warm mode of user, as 5 DEG C, and lower operate power, Heat preservation is carried out to retaining.Temperature adds difference and determines that electric heater 100 restarts the temperature heated, such as, under keeping warm mode, temperature return difference is set to 5 DEG C, and heating-up temperature is 75 DEG C, namely controller 60 controls heater 50 and heats retaining to 75 DEG C and stop heating, treats that retaining radiating and cooling enters to restart heating to 75-5=70 DEG C.Heating-up temperature lower under being appreciated that keeping warm mode and larger temperature return difference more save electric energy.
Similar, in some embodiments, under intelligent control mode, electric heater 100 is switching with in water state and keeping warm mode equally.Adopt the first higher power heating controlling heater 50 with water state controller 60, under keeping warm mode, control the second Power operation that heater 50 adopts larger temperature return difference and is less than the first power.
No matter be in mode of learning also under being intelligent control mode, controller 60 is selected to enter with water state or keeping warm mode according to the first information.The first information comprises the function of water flow about the time.When detecting that water flow is not less than predetermined amount of flow, controller 60 enters with water state; When detecting that water flow continues to reach preset duration lower than predetermined amount of flow, controller 60 enters keeping warm mode.Predetermined amount of flow is a smaller value, as 1mL/s, setting predetermined amount of flow as threshold value be in order to prevent as gondola water faucet damage or the situation of not fastening and dripping misjudged and enter and use water state.Preset duration can be 10 minutes, causes controller 60 frequently switching with between water state and keeping warm mode to prevent frequent opening and closing gondola water faucet in user's bathing experience.
The time of some user's water is very regular, and such as every day took a shower in the identical time period.In this case can take to predict that the embodiment of user's use water time is more to save electric energy.In some embodiments, controller 60 can in service time corresponding to record water state under mode of learning, namely user uses the time started of water at every turn, again under intelligent control mode according to obtaining the prediction water time service time, and enter according to the prediction water time under intelligent control mode and use water state.
Preferably, in some embodiments, controller 60 controls heater 50 stopping heating under keeping warm mode.Very regular with water due to user, can stop heating, enter again start heating with water state to prediction water time controller 60 under the dry keeping warm mode of user.Especially, start time of heating should less than prediction water time advance 0.5-1 according to the watt level of electric heater 100 time, retaining is heated to heating-up temperature when user's water.
In some embodiments, electric heater 100 is with 7 days for the cycle learns, and therefore mode of learning will at least 7 days.One week had 7 days, the regularity that it is the cycle that the daily life system of modern often presents with 7 days, and such as certain company's white collar is generally worked overtime to 8 points Friday, and the time that he has a bath is approximately 9 points, and each Friday is nearly all like this.Electric heater 100 can grasp the work and rest rule of this user by study, thus in 8 on every Fridays or start heating 8 thirty, with he about 9 reach heating-up temperature with making retaining during water, be user-friendly to.Mode of learning continues more number of days in some embodiments, as 28 days, to facilitate user's adding up with the water time weekly, adopts the mathematical methods such as averaged to estimate the prediction water time of more reasonably user.
Please refer to the drawing 1, in some embodiments, in water tank 10, the water yield of retaining is substantially invariable, and during user's water, the continuous water delivery of water inlet end 11 enters water tank 10 and remains on predetermined amount of water to make retaining, that is, water inlet end 11 can be intake to go out the substantially identical water intake velocity of water speed with water side 13.In this case, first sensor 20 can be arranged on water inlet end 11, first sensor 20 is for detecting flow of inlet water to obtain water flow.Such setting compared with benefit first sensor 20 being arranged at water side 13 is, can prevent the water outlet of water side 13 higher temperature from first sensor 20 is scorched.
Water inlet end 11 comprises water inlet pipe and the interface etc. with water tank 10 thereof, is used for transmitting cold water inlet water tank 10.First sensor 20 is used for detecting the water flow of water inlet end 11, and unit is cm
3/ s.In general, when user's water time, water flows out from water side 13, and water inlet end 11 understands timely supplementing water to water tank 10, to ensure the pattern of always full water in water tank 10.Therefore, be appreciated that with under water state, the inflow of water inlet end 11 is exactly water flow, and flow of inlet water also approximates water flow.Refer to that user is by the pattern residing for water Time Controller 60 with water state, control mode during user's water with without water Time Controller 60 is different, and therefore controller 60 is switching with between water state and keeping warm mode.Whether controller 60 judges client whether with water by the water flow of detection water end (W.E.), and determine to enter to use water state.
In sum, the electric heater of embodiment of the present invention is introduced into mode of learning, and water-use model under mode of learning detects the time of inflow temperature, leaving water temperature, water flow and correspondence thereof, is used for the power consumption of calculating water, and then calculates heating-up temperature.Controller exits mode of learning and enters intelligent control mode, under intelligent control mode, control heating devices heat according to heating-up temperature and leaving water temperature.Therefore, no matter be under water-use model or under holding mode, the electric heater of embodiment of the present invention all heats according to the water habits of user, and retaining will not be heated to too high temperature, the user demand of user can be met, the heat radiation of retaining can be reduced again thus significantly save electric energy.
Electric heater 100 control method of embodiment of the present invention comprises the following steps:
S1: enter mode of learning, controls the retaining heating in heater 50 feed-tank 10 according to predetermined temperature.
S2: detect the inflow temperature of the water tank 10 of electric heater 100, the time dependent first information of water flow and time dependent second information of leaving water temperature;
S3: the thermal loss caused according to the water outlet of inflow temperature, the first information and the second information calculating water tank 10;
S4: calculate heating-up temperature according to thermal loss;
S5: exit mode of learning;
S6: enter intelligent control mode, according to the retaining heating in heating and temperature control heater 50 feed-tank 10.
In some embodiments, the first information comprises the function of water flow about the time, and electric heater 100 control method is further comprising the steps of:
Select to enter with water state or keeping warm mode according to the first information:
If water flow is not less than predetermined amount of flow, then enter with water state, with controlling heater 50 under water state with the first power heating; And
If water flow continues to reach preset duration lower than predetermined amount of flow, then enter keeping warm mode, and under keeping warm mode, control heater 50 to be less than the second Power operation of the first power.
In some embodiments, electric heater 100 control method is further comprising the steps of:
The service time that record water state is corresponding under mode of learning;
Under intelligent control mode, according to obtaining the prediction water time service time; And
Under intelligent control mode, enter according to the prediction water time and use water state.
In some embodiments, under keeping warm mode, control heater 50 stop heating.
In some embodiments, electric heater 100 control method is further comprising the steps of:
Receive user's input to enter mode of learning; Or
Receive user's input to exit mode of learning to enter intelligent control mode.
The other parts do not launched in electric heater 100 control method of present embodiment, with reference to the corresponding part of the electric heater 100 of above embodiment, can launch at this no longer in detail.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " exemplary embodiment ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with described embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (13)
1. an electric heater, is characterized in that, comprising:
Water tank, described water tank comprises water inlet end and water side;
First sensor, the time dependent first information of the water flow for detecting described water side;
Second sensor, time dependent second information of the leaving water temperature for detecting described water side;
3rd sensor, for detecting the inflow temperature of described water inlet end;
Heater, described heater is for heating the retaining in described water tank;
The controller be connected with described first sensor, described second sensor, described 3rd sensor and described heater;
The thermal loss that described controller causes for calculating described water tank water outlet according to the described first information, described second information and described inflow temperature, and calculate heating-up temperature according to described thermal loss; The described retaining heating in described water tank also given by described controller for heater according to described heating and temperature control.
2. electric heater as claimed in claim 1, it is characterized in that, the described first information comprises the function of described water flow about the time; Described second information comprises the function of described leaving water temperature about the time.
3. electric heater as claimed in claim 1, it is characterized in that, described controller enters mode of learning for controlling described electric heater or exits mode of learning to enter intelligent control mode;
Described controller is used for controlling described heating devices heat according to predetermined temperature under described mode of learning.
4. electric heater as claimed in claim 3, it is characterized in that, described electric heater comprises the input module be connected with described controller; Described input module is for receiving user's input to make described controller enter described mode of learning or to exit described mode of learning to enter described intelligent control mode.
5. electric heater as claimed in claim 3, it is characterized in that, the described first information comprises the function of water flow about the time;
Described controller is used under described intelligent control mode, detect that described water flow enters when being not less than predetermined amount of flow with water state, and under described water state, controls described heater with the first power heating;
Described controller also for detecting that in described intelligent control mode described water flow continues to enter keeping warm mode when reaching preset duration lower than described predetermined amount of flow, and controls described heater to be less than the second Power operation of described first power under described keeping warm mode.
6. electric heater as claimed in claim 5, is characterized in that, described controller is used for recording service time corresponding to described water state under described mode of learning; Described controller also under described intelligent control mode according to obtaining the prediction water time described service time, and enter described water state according to the described prediction water time under described intelligent control mode.
7. electric heater as claimed in claim 6, is characterized in that, described controller is used under described keeping warm mode, control the heating of described heater stop.
8. electric heater as claimed in claim 1, it is characterized in that, described first sensor is arranged at described water inlet end; Described first sensor is for detecting flow of inlet water to obtain described water flow.
9. a control method of electric water heater, is characterized in that, comprises the following steps:
Enter mode of learning, control the retaining heating in heater feed-tank according to predetermined temperature.
Detect the inflow temperature of the water tank of described electric heater, the time dependent first information of water flow and time dependent second information of leaving water temperature;
The thermal loss that described water tank water outlet causes is calculated according to described inflow temperature, the described first information and described second information;
Heating-up temperature is calculated according to described thermal loss;
Exit mode of learning;
Enter intelligent control mode, according to described heating and temperature control, the described retaining heating in described water tank given by heater.
10. control method of electric water heater as claimed in claim 9, it is characterized in that, the described first information comprises the function of water flow about the time;
Described control method of electric water heater is further comprising the steps of:
Select to enter with water state or keeping warm mode according to the described first information:
If described water flow is not less than predetermined amount of flow, then enters with water state, under described water state, control described heater with the first power heating; And
If described water flow continues to reach preset duration lower than described predetermined amount of flow, then enter keeping warm mode, and under described keeping warm mode, control described heater to be less than the second Power operation of described first power.
11. control method of electric water heater as claimed in claim 10, is characterized in that, further comprising the steps of:
Service time corresponding to described water state is recorded under described mode of learning;
Under described intelligent control mode, obtain the prediction water time according to described service time; And
Under described intelligent control mode, enter described water state according to the described prediction water time.
12. control method of electric water heater as claimed in claim 11, is characterized in that, control the heating of described heater stop under described keeping warm mode.
13. control method of electric water heater as claimed in claim 9, is characterized in that, further comprising the steps of:
Receive user's input to enter described mode of learning; Or
Receive user's input to exit described mode of learning to enter described intelligent control mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN201510752257.7A CN105352192B (en) | 2015-11-06 | 2015-11-06 | Electric water heater and control method thereof |
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| CN105352192B CN105352192B (en) | 2017-05-10 |
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| WO (1) | WO2017075948A1 (en) |
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| CN106123305A (en) * | 2016-07-29 | 2016-11-16 | 芜湖美的厨卫电器制造有限公司 | The method for heating and controlling of electric heater and electric heater |
| WO2017075948A1 (en) * | 2015-11-06 | 2017-05-11 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method therefor |
| CN107202428A (en) * | 2017-06-28 | 2017-09-26 | 合肥工业大学 | A kind of single electric heater method for estimating state |
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| CN107975945A (en) * | 2017-11-24 | 2018-05-01 | 北京小米移动软件有限公司 | The control method and device of water heater |
| CN108286819A (en) * | 2017-01-09 | 2018-07-17 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its control method |
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| CN107975945A (en) * | 2017-11-24 | 2018-05-01 | 北京小米移动软件有限公司 | The control method and device of water heater |
| 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 |
Also Published As
| Publication number | Publication date |
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| CN105352192B (en) | 2017-05-10 |
| WO2017075948A1 (en) | 2017-05-11 |
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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. |