WO2017075948A1 - 电热水器及其控制方法 - Google Patents

电热水器及其控制方法 Download PDF

Info

Publication number
WO2017075948A1
WO2017075948A1 PCT/CN2016/080504 CN2016080504W WO2017075948A1 WO 2017075948 A1 WO2017075948 A1 WO 2017075948A1 CN 2016080504 W CN2016080504 W CN 2016080504W WO 2017075948 A1 WO2017075948 A1 WO 2017075948A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
temperature
controller
flow rate
heating
Prior art date
Application number
PCT/CN2016/080504
Other languages
English (en)
French (fr)
Inventor
金彪
王建军
Original Assignee
芜湖美的厨卫电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 芜湖美的厨卫电器制造有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2017075948A1 publication Critical patent/WO2017075948A1/zh

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to the field of household appliances, in particular to an electric water heater and a control method thereof.
  • the existing electric water heater generally stops heating after being heated to a predetermined temperature, and enters a heat preservation state.
  • the predetermined temperature is generally higher, resulting in serious heat dissipation of the hot water, wasting power, especially if the user does not use water.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electric water heater comprising:
  • the water tank including a water inlet end and a water outlet end;
  • a first sensor configured to detect first information of a water flow rate of the water outlet end as a function of time
  • a second sensor configured to detect second information of the water outlet temperature of the water outlet end changing with time
  • a third sensor for detecting an inlet water temperature of the water inlet end
  • a heating device for heating water storage in the water tank
  • a controller coupled to the first sensor, the second sensor, the third sensor, and the heating device
  • the controller is configured to calculate a heat loss caused by the water outflow of the water tank according to the first information, the second information, and the water inlet temperature, and calculate a heating temperature according to the heat loss; the controller is further used to The heating device is controlled to heat the water storage in the water tank according to the heating temperature.
  • the first information includes the water flow rate as a function of time; the second information includes the water temperature as a function of time.
  • the controller is configured to control the electric water heater to enter a learning mode or exit a learning mode to enter an intelligent control mode
  • the controller is configured to control heating of the heating device according to a predetermined temperature in the learning mode.
  • the electric water heater includes an input module coupled to the controller; Receiving user input to cause the controller to enter the learning mode or exit the learning mode to enter the intelligent control mode.
  • the first information includes a function of the flow of water as a function of time
  • the controller is configured to enter a water use state when the water flow rate is not lower than a predetermined flow rate in the intelligent control mode, and control the heating device to heat at a first power in the water use state;
  • the controller is further configured to enter a heat retention state when the smart control mode detects that the water flow rate continues to be lower than the predetermined flow rate for a preset time period, and control the heating device to be smaller than the heat storage state
  • the second power operation of the first power is described.
  • the controller is configured to record a usage time corresponding to the water usage state in the learning mode; the controller is further configured to obtain a predicted water according to the usage time in the intelligent control mode Time, and entering the water use state according to the predicted water use time in the intelligent control mode.
  • the controller is configured to control the heating device to stop heating in the insulated state.
  • the first sensor is disposed at the water inlet end; the first sensor is configured to detect an influent flow rate to obtain the outlet water flow rate.
  • the invention also provides a method for controlling an electric water heater, comprising the following steps:
  • the heating device is controlled to heat the water storage in the water tank according to the predetermined temperature.
  • the heating device is controlled to heat the water storage in the water tank according to the heating temperature.
  • the first information includes a function of the flow of water as a function of time
  • the electric water heater control method further includes the following steps:
  • the electric water heater control method further includes the following steps:
  • the predicted water usage time is obtained according to the usage time
  • the water use state is entered according to the predicted water use time.
  • the heating device is controlled to stop heating in the insulated state.
  • the electric water heater control method further includes the following steps:
  • a user input is received to exit the learning mode to enter the intelligent control mode.
  • the electric water heater according to the embodiment of the present invention calculates the heat loss caused by the water and calculates the heating temperature according to the heat loss to heat the water storage according to the heating temperature, so that the electric water heater can be heated according to the user's water use habit without heating the water storage.
  • the high temperature can not only meet the user's use requirements, but also reduce the heat dissipation of the water storage to save energy, and solve some problems of the existing electric water heater.
  • FIG. 1 is a schematic view showing the overall structure of an electric water heater according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of functional modules of an electric water heater according to an embodiment of the present invention.
  • FIG. 3 is a flow chart of a method of controlling an electric water heater according to an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • Connected, or integrally connected may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature “above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly above and above the second feature, or merely the first feature level being less than the second feature.
  • an electric water heater 100 includes a water tank 10 , a first sensor 20 , a second sensor 30 , a third sensor 40 , a heating device 50 , and a controller 60 .
  • the water tank 10 includes a water inlet end 11 and a water outlet end 13 for holding water storage.
  • the first sensor 20 is used to detect first information of the flow of water at the water end 13 as a function of time, generally indicating a function of water flow as a function of time.
  • the second sensor 30 is for detecting second information of the temperature of the water outlet of the water terminal 13 as a function of time, generally indicating a function of the water temperature as a function of time.
  • the third sensor 40 is for detecting the inlet water temperature of the water inlet end 11.
  • the heating device 50 is used to heat the water in the water tank 10 to supply hot water to the user.
  • the controller 60 is connected to the first sensor 20, the second sensor 30, the third sensor 40, and the heating device 50, and is configured to calculate the heat loss caused by the water out of the water tank 10 according to the first information, the second information, and the inlet water temperature, and according to the heat. The heating temperature is calculated for the loss.
  • the second sensor 30 includes a temperature sensing tube disposed in the water tank 10, and the measured water storage temperature is the outlet water temperature. Further, the second sensor 30 is connected to the controller 60, and when the controller 60 heats the water storage according to the heating temperature, it is judged whether or not the heating temperature has been reached by the feedback of the water discharge temperature. The same is true in the insulated state, the controller 60 constantly monitors the water temperature, that is, the water storage temperature, through the second sensor 30.
  • the heating device 50 may be a magnesium rod that heats the water storage.
  • the water outlet end 13 includes an outlet pipe connected to the water tank 10.
  • the heat loss is the energy obtained by heating the water used by the user, or the difference between the energy after heating and the heating.
  • the amount of loss can represent the amount of energy consumed by the user throughout the water use process, so the heating temperature of the electric water heater 100 can be obtained from the energy loss by a suitable algorithm.
  • the controller 60 controls the heating device 50 to heat the water storage in the water tank 10 in accordance with the heating temperature.
  • the conventional electric water heater 100 often presets an excessively high heating temperature. On the one hand, the user does not use as much hot water, resulting in wasted electric energy. On the other hand, when the user does not use water, the excessive water temperature causes an increase in heat dissipation and wastes electric energy.
  • the electric water heater 100 according to the embodiment of the present invention sets an appropriate heating temperature according to the user's water habit, so as to achieve the effect of satisfying the customer's water temperature requirement while avoiding excessive heating temperature and wasting electric energy.
  • the first information includes a function of the outlet water flow as a function of time and the second information includes a temperature of the outlet water as a function of time.
  • the inlet water temperature t2 that is, the temperature of the cold water is substantially constant, but since the user uses water, the inlet end 11 has cold water to be replenished into the water tank 10, causing the water storage to cool down, thereby causing the water outlet 13
  • the effluent temperature varies with time, and the effluent flow is also time-varying due to manual regulation by the user. Therefore, it cannot be calculated simply by using (t1-t2) ⁇ f ⁇ T ⁇ C water , but by the integral method.
  • t1 is the outlet water temperature
  • t2 is the inlet water temperature
  • f the outlet water flow rate
  • T is the water use time
  • C water is the specific heat capacity of the water.
  • controller 60 includes a programmable logic controller that is programmed to calculate the integral operations described above. By calculating the heat loss multiple times, it is possible to estimate the user's approximate water consumption per time, so as to calculate the appropriate heating temperature, so as to meet the user's water demand, and try not to generate too much hot water to waste energy.
  • the user's water consumption energy that is, the heat loss Q is about 1 kW ⁇ h
  • the user's water temperature is 40 ° C
  • the inlet water temperature is 20 ° C
  • the water tank 10 capacity is 60 L, that is, 60 kg of water storage.
  • the maximum heating power P of the electric water heater 100 is 2000 W
  • the user's water use time T is about 10 minutes or 600 seconds each time, and the water storage needs to be heated before the user uses water.
  • the heating temperature t' is calculated as follows:
  • the heating temperature is set to be above 54.3 ° C, so that the water demand of the customer in the general case can be satisfied; if the electric water heater 100 is considered in the user's water use process, Heating, heating temperature set above 47.1 °C, can meet the customer's general water needs.
  • the heating temperature mentioned above refers to the heating temperature of the electric water heater 100 during the user's water use, and also means that the user does not use water.
  • the holding temperature of the electric water heater 100 It can be seen that the heating temperature calculated according to the user's water demand is lower than the heating temperature normally preset by the conventional electric water heater 100, such as 75 ° C, thus greatly reducing the waste of electric energy.
  • the electric water heater 100 switches between two modes: a learning mode and an intelligent control mode.
  • the controller 60 calculates the heat loss caused by the water out of the water tank 10 based on the first information, the second information, and the water inlet temperature, and calculates the heating temperature based on the heat loss. Then, the controller 60 exits the learning mode and enters the intelligent control mode, and in the intelligent control mode, the heating device 50 is controlled to heat the water storage according to the heating temperature.
  • electric water heater 100 includes an input module 70 coupled to controller 60.
  • the input module 70 is configured to receive user input to cause the controller 60 to enter a learning mode or exit the learning mode to enter an intelligent control mode.
  • the input module 70 includes an input panel 71 having an intelligent control switch 711 thereon, and the user presses the smart control switch 711 for 6 seconds to put the controller 60 into the learning mode or press and hold in the learning mode. Seconds to exit the learning mode to enter the intelligent control mode.
  • the heating mode of the ordinary electric water heater 100 is adopted, and the user enters the water state when using water, according to a preset heating temperature, such as 75 ° C,
  • the water is stored for heating and there is no temperature difference.
  • a large temperature difference such as 5 ° C, and a lower operating power, are used to heat the water storage.
  • the temperature difference determines the temperature at which the electric water heater 100 restarts heating.
  • the temperature difference is set to 5 ° C in the heat preservation state, and the heating temperature is 75 ° C. That is, the controller 60 controls the heating device 50 to heat the water storage to 75 ° C to stop heating.
  • the electric water heater 100 is also switched between a water state and a warm state in the intelligent control mode.
  • the heating device 50 is controlled by the water state controller 60 to employ a higher first power heating, and the heating device 50 is controlled to operate with a larger temperature difference and a second power less than the first power in the insulated state.
  • the controller 60 selects the water ingress state or the insured state based on the first information.
  • the first information includes a function of the flow of water as a function of time.
  • the controller 60 enters the water use state; when it is detected that the discharge water flow rate continues to be lower than the predetermined flow rate for a preset time period, the controller 60 enters the heat retention state.
  • the predetermined flow rate is a small value, such as 1 mL/s, and the predetermined flow rate is set as the threshold value to prevent the dripping of the water from being misjudged if the shower is damaged or not closed.
  • the preset duration can be 10 minutes to prevent the user from frequently switching on and off during the bathing process, causing the controller 60 to frequently switch between the water state and the warm state.
  • the controller 60 can record the usage time corresponding to the water usage state in the learning mode, that is, the user starts using the water each time, and then obtains the predicted water usage time according to the usage time in the intelligent control mode, and in the intelligent control. In the mode, the water consumption state is entered according to the predicted water use time.
  • the controller 60 controls the heating device 50 to stop heating in the insulated state. Due to The user's water consumption is very regular, and the heating can be stopped when the user does not use water for the heat preservation state, and the controller 60 is predicted to use the water time to start heating again. In particular, the time to start heating should be 0.5-1 hour earlier than the predicted water use time according to the power level of the electric water heater 100, so that the water storage has been heated to the heating temperature when the user uses water.
  • the electric water heater 100 is learning on a 7 day cycle, so the learning mode is at least 7 days. There are 7 days in a week. The life routine of modern people often shows a regularity of 7 days. For example, a white-collar worker of a company usually works overtime until 8 o'clock on Friday. His bath time is about 9 o'clock, almost every Friday.
  • the electric water heater 100 can learn the routine of the user by learning, so that heating starts at 8:00 or 8:30 every Friday, so that when he uses water at about 9 o'clock, the water storage temperature is reached, which is convenient for the user to use.
  • the learning mode lasts for more days, such as 28 days, to facilitate statistics on the user's weekly water use time, and mathematical methods such as averaging are used to estimate a more reasonable predicted water usage time for the user.
  • the amount of water stored in the water tank 10 is substantially constant, and when the user uses water, the water inlet end 11 continuously delivers water into the water tank 10 to maintain the water storage at a predetermined amount of water, that is, The water inlet end 11 will enter the water at a water inlet speed substantially the same as the water outlet speed of the water outlet end 13.
  • the first sensor 20 can be placed at the water inlet end 11, and the first sensor 20 is used to detect the influent flow rate to obtain the outlet water flow rate.
  • the advantage of this arrangement compared to the provision of the first sensor 20 to the water outlet 13 is that the water from the higher temperature of the water outlet 13 can be prevented from scalding the first sensor 20.
  • the water inlet end 11 includes an inlet pipe and an interface with the water tank 10, and the like, for conveying the cold water inlet tank 10.
  • the first sensor 20 is used to detect the flow rate of the water at the water inlet end 11 in units of cm 3 /s.
  • the water inlet end 11 replenishes the water to the water tank 10 in time to ensure that the water tank 10 is always full of water. Therefore, it can be understood that in the water state, the water inflow at the water inlet end 11 is the outlet water flow rate, and the influent water flow rate is also approximately equal to the outlet water flow rate.
  • the water use state refers to the mode in which the controller 60 is located when the user is in use of water, and the control mode of the controller 60 is different when the user uses water and when the water is not used, so the controller 60 switches between the water use state and the warm state.
  • the controller 60 determines whether the customer is using water by detecting the flow rate of the water at the water end, and determines whether or not to enter the water state.
  • the electric water heater according to the embodiment of the present invention first enters the learning mode, and the water mode in the learning mode detects the inflow water temperature, the outlet water temperature, the outlet water flow rate, and the corresponding time, and is used to calculate the water consumption energy, thereby calculating the heating. temperature.
  • the controller exits the learning mode and enters the intelligent control mode.
  • the heating device is controlled according to the heating temperature and the water temperature. Therefore, whether in the water mode or the heat preservation mode, the electric water heater according to the embodiment of the present invention is heated according to the user's water use habit, without heating the water storage to an excessively high temperature, which can meet the user's use requirements and can Reduce the heat dissipation of the water storage and save energy significantly.
  • the method for controlling the electric water heater 100 according to the embodiment of the present invention includes the following steps:
  • the heating device 50 is controlled to heat the water storage in the water tank 10 according to the predetermined temperature.
  • the heating device 50 is controlled to heat the water storage in the water tank 10 according to the heating temperature.
  • the first information includes a function of the water flow rate as a function of time
  • the electric water heater 100 control method further includes the following steps:
  • outlet flow rate is not lower than the predetermined flow rate, entering the water use state, and controlling the heating device 50 to be heated at the first power in the water state;
  • the control heating device 50 operates at a second power less than the first power.
  • the electric water heater 100 control method further includes the following steps:
  • the predicted water usage time is obtained according to the usage time
  • the water usage status is entered according to the predicted water usage time.
  • the heating device 50 is controlled to stop heating in the insulated state.
  • the electric water heater 100 control method further includes the following steps:
  • a user input is received to exit the learning mode to enter the intelligent control mode.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Landscapes

  • 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

一种电热水器，包括水箱(10)、第一传感器(20)、第二传感器(30)、第三传感器(40)、加热装置(50)及控制器(60)。其中，水箱(10)包括进水端(11)及出水端(13)，水箱(10)用来盛放蓄水。第一传感器(20)用来检测出水端(13)的出水流量随时间变化的第一信息。第二传感器(30)用于检测出水端(13)的出水温度随时间变化的第二信息。第三传感器(40)用于检测进水端(11)的进水温度。控制器(60)与第一传感器(20)、第二传感器(30)、第三传感器(40)及加热装置(50)连接，用来根据第一信息、第二信息及进水温度计算水箱(10)出水导致的热量损失，并根据热量损失计算加热温度。控制器(60)根据加热温度控制加热装置(50)给水箱(10)内的蓄水加热。同时还提供了一种电热水器控制方法。该电热水器及电热水器控制方法节能、智能、方便。

Description

电热水器及其控制方法
优先权信息
本申请请求2015年11月6日向中国国家知识产权局提交的、专利申请号为201510752257.7的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及家用电器领域，尤其涉及一种电热水器及其控制方法。
背景技术
现有的电热水器一般加热到预定温度后停止加热，进入保温状态。为了提供更多的混兑水，因此预定温度一般都较高，导致热水散热严重，浪费电能，尤其是在用户不用水情况下。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提供一种电热水器，其包括：
水箱，所述水箱包括进水端及出水端；
第一传感器，用于检测所述出水端的出水流量随时间变化的第一信息；
第二传感器，用于检测所述出水端的出水温度随时间变化的第二信息；
第三传感器，用于检测所述进水端的进水温度；
加热装置，所述加热装置用于加热所述水箱内的蓄水；
与所述第一传感器、所述第二传感器、所述第三传感器及所述加热装置连接的控制器；
所述控制器用于根据所述第一信息、所述第二信息及所述进水温度计算所述水箱出水导致的热量损失，以及根据所述热量损失计算加热温度；所述控制器还用于根据所述加热温度控制所述加热装置给所述水箱内的所述蓄水加热。
在某些实施方式中，所述第一信息包括所述出水流量关于时间的函数；所述第二信息包括所述出水温度关于时间的函数。
在某些实施方式中，所述控制器用于控制所述电热水器进入学习模式或退出学习模式以进入智能控制模式；
所述控制器用于在所述学习模式下根据预定温度控制所述加热装置加热。
在某些实施方式中，所述电热水器包括与所述控制器连接的输入模块；所述输入模块用 于接收用户输入以使所述控制器进入所述学习模式或退出所述学习模式以进入所述智能控制模式。
在某些实施方式中，所述第一信息包括出水流量关于时间的函数；
所述控制器用于在所述智能控制模式下检测到所述出水流量不低于预定流量时进入用水状态，以及在所述用水状态下控制所述加热装置以第一功率加热；
所述控制器还用于在所述智能控制模式检测到所述出水流量持续低于所述预定流量达到预设时长时进入保温状态，以及在所述保温状态下控制所述加热装置以小于所述第一功率的第二功率运行。
在某些实施方式中，所述控制器用于在所述学习模式下记录所述用水状态对应的使用时间；所述控制器还用于在所述智能控制模式下根据所述使用时间得到预测用水时间，以及在所述智能控制模式下根据所述预测用水时间进入所述用水状态。
在某些实施方式中，所述控制器用于在所述保温状态下控制所述加热装置停止加热。
在某些实施方式中，所述第一传感器设置于所述进水端；所述第一传感器用于检测进水流量以得到所述出水流量。
本发明还提供一种电热水器控制方法，包括以下步骤：
进入学习模式，根据预定温度控制加热装置给水箱内的蓄水加热。
检测所述电热水器的水箱的进水温度、出水流量随时间变化的第一信息及出水温度随时间变化的第二信息；
根据所述进水温度、所述第一信息及所述第二信息计算所述水箱出水导致的热量损失；
根据所述热量损失计算加热温度；
退出学习模式；
进入智能控制模式，根据所述加热温度控制所述加热装置给所述水箱内的所述蓄水加热。
在某些实施方式中，所述第一信息包括出水流量关于时间的函数；
所述电热水器控制方法还包括以下步骤：
根据所述第一信息选择进入用水状态或保温状态：
若所述出水流量不低于预定流量，则进入用水状态，在所述用水状态下控制所述加热装置以第一功率加热；以及
若所述出水流量持续低于所述预定流量达到预设时长，则进入保温状态，且在所述保温状态下控制所述加热装置以小于所述第一功率的第二功率运行。
在某些实施方式中，所述电热水器控制方法还包括以下步骤：
在所述学习模式下记录所述用水状态对应的使用时间；
在所述智能控制模式下，根据所述使用时间得到预测用水时间；以及
在所述智能控制模式下，根据所述预测用水时间进入所述用水状态。
在某些实施方式中，在所述保温状态下控制所述加热装置停止加热。
在某些实施方式中，所述电热水器控制方法还包括以下步骤：
接收用户输入以进入所述学习模式；或
接收用户输入以退出所述学习模式以进入所述智能控制模式。
本发明实施方式的电热水器通过计算出水导致的热量损失并根据热量损失计算加热温度以根据加热温度对蓄水加热，这样电热水器可根据用户的用水习惯进行加热，而不必将蓄水加热到过高的温度，既能满足用户的使用需求，又能减少蓄水的散热从而节省电能，解决了现有电热水器的某些问题。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的电热水器的整体结构示意图。
图2是本发明实施方式的电热水器的功能模块示意图。
图3是本发明实施方式的电热水器控制方法的流程图。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中相同或类似的标号自始至终表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1及图2，本发明实施方式的电热水器100包括水箱10、第一传感器20、第二传感器30、第三传感器40、加热装置50及控制器60。其中，水箱10包括进水端11及出水端13，水箱10用来盛放蓄水。第一传感器20用来检测出水端13的出水流量随时间变化的第一信息，一般指出水流量关于时间的函数。第二传感器30用于检测出水端13的出水温度随时间变化的第二信息，一般指出水温度关于时间的函数。第三传感器40用于检测进水端11的进水温度。加热装置50用来加热水箱10内的蓄水以供给用户热水。控制器60与第一传感器20、第二传感器30、第三传感器40及加热装置50连接，用来根据第一信息、第二信息及进水温度计算水箱10出水导致的热量损失，并根据热量损失计算加热温度。
由于出水端13的出水即蓄水流出，出水温度也即蓄水温度。请参图1，在某些实施方式中，第二传感器30包括感温管，设置在水箱10内，测得的蓄水温度即为出水温度。此外，第二传感器30与控制器60连接，控制器60根据加热温度对蓄水加热时，通过出水温度的反馈来判断是否已达到加热温度。在保温状态下同样如此，控制器60通过第二传感器30来时刻监测出水温度即蓄水温度。加热装置50可以是镁棒，对蓄水进行加热。出水端13包括与水箱10连接的出水管。
热量损失即用户用掉的水被加热所得到的能量，或者说加热后与加热前的能量差值。能 量损失能代表用户整个用水过程所消耗的能量多少，因此可以通过合适的算法根据能量损失得到电热水器100的加热温度。控制器60根据加热温度控制加热装置50给水箱10内的蓄水加热。
传统的电热水器100的往往预设过高的加热温度，一方面用户用不完那么多热水，导致浪费电能，另一方面在用户不用水时，过高的水温导致散热增加而浪费电能。本发明实施方式的电热水器100根据用户的用水习惯设定合适的加热温度，以达到既能满足客户的用水温度需求同时避免加热温度过高而浪费电能的效果。
在某些实施方式中，第一信息包括出水流量关于时间的函数，第二信息包括出水温度关于时间的函数。在计算热量损失的过程中，进水温度t2即冷水的温度是基本恒定的，但由于随着用户用水，进水端11有冷水补充进水箱10，导致蓄水降温，从而使出水端13的出水温度是随时间变化的，此外出水流量因用户的人工调控，也是随时间变化的。因此不能简单用(t1-t2)·f·T·C水来计算，而要用积分的方法计算。其中t1为出水温度，t2为进水温度，f为出水流量，T为用水时间，C水为水的比热容。
在某些实施方式中，控制器60包括可编程逻辑控制器，对其进行编程以计算上述的积分运算。通过多次计算热量损失，可以估算出用户每次大概的用水耗能，从而计算出合适的加热温度，以既能满足用户的用水需求，又尽量不产生过多热水而浪费电能。
例如，通过积分运算得出用户每次的用水耗能即热量损失Q约为1kW·h，用户的用水温度为40℃，进水温度为20℃，水箱10容量为60L，即蓄水60kg。在忽略用户用水期间加热装置50加热的情况下，在用户用水之前需将蓄水加热到的加热温度t的计算过程如下：
(t-40℃)M水×C水＝Q
即：(t-40℃)60×4.2×103＝1×3.6×106
得：t≈54.3℃
假如考虑电热水器100在用户用水过程中的加热，假设电热水器100的最高加热功率P为2000W，用户每次的用水时间T约为10分钟即600秒，在用户用水之前需将蓄水加热到的加热温度t’的计算过程如下：
(t’-40℃)M水×C水+T×P＝Q
即：(t’-40℃)60×4.2×103+600×3000＝1×3.6×106
得：t’≈47.1℃
也就是说，若不考虑电热水器100在用户用水过程中的加热，将加热温度设置在54.3℃以上，就可以满足客户的一般情况下的用水需求；若考虑电热水器100在用户用水过程中的加热，加热温度设置在47.1℃以上，就可以满足客户的一般情况下的用水需求。
以上所讲的加热温度，即指用户用水过程中电热水器100的加热温度，也指用户不用水 时电热水器100的保温温度。可见，根据用户用水需求计算得到的加热温度低于传统电热水器100通常预设的加热温度，如75℃，因此大大减少了电能浪费。
较佳的，在某些实施方式中，电热水器100在两种模式中切换：学习模式和智能控制模式。在学习模式下，控制器60根据第一信息、第二信息及进水温度计算水箱10出水导致的热量损失，以及根据热量损失计算加热温度。然后，控制器60退出学习模式进入智能控制模式，在智能控制模式下根据加热温度控制加热装置50加热蓄水。
请参图1及图2，在某些实施方式中，电热水器100包括与控制器60连接的输入模块70。输入模块70用于接收用户输入以使控制器60进入学习模式或退出学习模式以进入智能控制模式。在某些实施方式中，输入模块70包括输入面板71，其上设有智能控制开关711，用户对智能控制开关711长按6秒以使控制器60进入学习模式或在学习模式下长按6秒以退出学习模式进入智能控制模式。
在学习模式下，由于电热水器100还没学习到用户的用水习惯，所以就采用普通电热水器100的加热方式，在用户用水时进入用水状态，根据一个预设的加热温度，如75℃，对蓄水进行加热，且无温度回差。在用户不用水的保温状态下采用较大的温度回差，如5℃，及较低的运行功率，对蓄水进行保温加热。温度加差决定电热水器100重新开始加热的温度，例如，保温状态下温度回差设为5℃，加热温度为75℃，即控制器60控制加热装置50加热蓄水至75℃停止加热，待蓄水散热降温至75-5＝70℃进重新开始加热。可以理解，保温状态下较低的加热温度及较大的温度回差更节省电能。
与此类似的，在某些实施方式中，在智能控制模式下电热水器100同样在用水状态和保温状态中切换。在用水状态控制器60控制加热装置50采用较高的第一功率加热，在保温状态下控制加热装置50采用较大的温度回差及小于第一功率的第二功率运行。
无论是在学习模式还在是智能控制模式下，控制器60根据第一信息来选择进入用水状态或保温状态。第一信息包括出水流量关于时间的函数。当检测到出水流量不低于预定流量时，控制器60进入用水状态；当检测到出水流量持续低于预定流量达到预设时长时，控制器60进入保温状态。预定流量是一个较小值，如1mL/s，设定预定流量作为阈值是为了防止如花洒损坏或没关紧而滴水的情况被误判而进入用水状态。预设时长可以为10分钟，以防止用户沐浴过程中频繁开闭花洒导致控制器60频繁在用水状态和保温状态间切换。
有些用户用水的时间很有规律，例如每天在相同的时间段沐浴。这种情况下可以采取可以预测用户用水时间的实施方式以更加节省电能。在某些实施方式中，控制器60可以在学习模式下记录用水状态对应的使用时间，即用户每次用水的开始时间，再在智能控制模式下根据使用时间得到预测用水时间，以及在智能控制模式下根据预测用水时间进入用水状态。
较佳的，在某些实施方式中，控制器60在保温状态下控制加热装置50停止加热。由于 用户的用水很有规律，可以在用户不用水的保温状态下停止加热，到预测用水时间控制器60再进入用水状态开始加热。特别的，开始加热的时间应根据电热水器100的功率大小比预测用水时间提前0.5-1小时，以在用户用水时已将蓄水加热至加热温度。
在某些实施方式中，电热水器100以7天为周期进行学习，因此学习模式要至少7天。一个星期有7天，现代人的生活作息往往呈现出以7天为周期的规律性，例如某公司白领星期五一般加班至8点，他洗澡的时间大约为9点，每个星期五几乎都如此。电热水器100通过学习可以掌握此用户的作息规律，从而在每周五的8点或8点半开始加热，以在他大约9点用水时使蓄水达到加热温度，方便用户使用。在某些实施方式中学习模式持续更多的天数，如28天，以方便对用户每周的用水时间进行统计，采用求取平均值等数学方法估算出更合理的用户的预测用水时间。
请参图1，在某些实施方式中，水箱10内蓄水的水量是基本恒定的，用户用水时进水端11不断输水进入水箱10以使蓄水保持在预定水量，也就是说，进水端11会以与出水端13出水速度基本相同的进水速度进水。在这种情况下，可以将第一传感器20设置在进水端11，第一传感器20用于检测进水流量以得到出水流量。这样设置比起将第一传感器20设置于出水端13的好处是，可以防止出水端13较高温度的出水把第一传感器20烫坏。
进水端11包括进水管及其与水箱10的接口等，用来传输冷水进水箱10。第一传感器20用来检测进水端11的出水流量，单位是cm3/s。一般来说，当用户用水的时候，水从出水端13流出，进水端11会及时补充水至水箱10，以保证水箱10中总是满水的模式。因此，可以理解，在用水状态下，进水端11的进水量就是出水流量，进水流量也约等于出水流量。用水状态指用户在用水时控制器60所处的模式，用户用水时和不用水时控制器60的控制方式是不同的，因此控制器60在用水状态和保温状态之间进行切换。控制器60通过检测用水端的出水流量来判断客户是否在用水，并决定是否进入用水状态。
综上所述，本发明实施方式的电热水器先进入学习模式，在学习模式下的用水模式检测进水温度、出水温度、出水流量及其对应的时间，用来计算用水耗能，进而计算加热温度。控制器退出学习模式进入智能控制模式，在智能控制模式下根据加热温度及出水温度控制加热装置加热。因此，不论是用水模式下还是保温模式下，本发明实施方式的电热水器都根据用户的用水习惯进行加热，而不必将蓄水加热到过高的温度，既能满足用户的使用需求，又能减少蓄水的散热从而显著节省电能。
本发明实施方式的电热水器100控制方法包括以下步骤：
S1:进入学习模式，根据预定温度控制加热装置50给水箱10内的蓄水加热。
S2:检测电热水器100的水箱10的进水温度、出水流量随时间变化的第一信息及出水温度随时间变化的第二信息；
S3:根据进水温度、第一信息及第二信息计算水箱10出水导致的热量损失；
S4:根据热量损失计算加热温度；
S5:退出学习模式；
S6:进入智能控制模式，根据加热温度控制加热装置50给水箱10内的蓄水加热。
在某些实施方式中，第一信息包括出水流量关于时间的函数，电热水器100控制方法还包括以下步骤：
根据第一信息选择进入用水状态或保温状态：
若出水流量不低于预定流量，则进入用水状态，在用水状态下控制加热装置50以第一功率加热；以及
若出水流量持续低于预定流量达到预设时长，则进入保温状态，且在保温状态下控制加热装置50以小于第一功率的第二功率运行。
在某些实施方式中，电热水器100控制方法还包括以下步骤：
在学习模式下记录用水状态对应的使用时间；
在智能控制模式下，根据使用时间得到预测用水时间；以及
在智能控制模式下，根据预测用水时间进入用水状态。
在某些实施方式中，在保温状态下控制加热装置50停止加热。
在某些实施方式中，电热水器100控制方法还包括以下步骤：
接收用户输入以进入学习模式；或
接收用户输入以退出学习模式以进入智能控制模式。
本实施方式的电热水器100控制方法中未展开的其它部分，可参考以上实施方式的电热水器100的对应部分，在此不再详细展开。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本发明各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (13)

  1. 一种电热水器，其特征在于，包括：
    水箱，所述水箱包括进水端及出水端；
    第一传感器，用于检测所述出水端的出水流量随时间变化的第一信息；
    第二传感器，用于检测所述出水端的出水温度随时间变化的第二信息；
    第三传感器，用于检测所述进水端的进水温度；
    加热装置，所述加热装置用于加热所述水箱内的蓄水；
    与所述第一传感器、所述第二传感器、所述第三传感器及所述加热装置连接的控制器；
    所述控制器用于根据所述第一信息、所述第二信息及所述进水温度计算所述水箱出水导致的热量损失，以及根据所述热量损失计算加热温度；所述控制器还用于根据所述加热温度控制所述加热装置给所述水箱内的所述蓄水加热。
  2. 如权利要求1所述的电热水器，其特征在于，所述第一信息包括所述出水流量关于时间的函数；所述第二信息包括所述出水温度关于时间的函数。
  3. 如权利要求1所述的电热水器，其特征在于，所述控制器用于控制所述电热水器进入学习模式或退出学习模式以进入智能控制模式；
    所述控制器用于在所述学习模式下根据预定温度控制所述加热装置加热。
  4. 如权利要求3所述的电热水器，其特征在于，所述电热水器包括与所述控制器连接的输入模块；所述输入模块用于接收用户输入以使所述控制器进入所述学习模式或退出所述学习模式以进入所述智能控制模式。
  5. 如权利要求3所述的电热水器，其特征在于，所述第一信息包括出水流量关于时间的函数；
    所述控制器用于在所述智能控制模式下检测到所述出水流量不低于预定流量时进入用水状态，以及在所述用水状态下控制所述加热装置以第一功率加热；
    所述控制器还用于在所述智能控制模式检测到所述出水流量持续低于所述预定流量达到预设时长时进入保温状态，以及在所述保温状态下控制所述加热装置以小于所述第一功率的第二功率运行。
  6. 如权利要求5所述的电热水器，其特征在于，所述控制器用于在所述学习模式下记 录所述用水状态对应的使用时间；所述控制器还用于在所述智能控制模式下根据所述使用时间得到预测用水时间，以及在所述智能控制模式下根据所述预测用水时间进入所述用水状态。
  7. 如权利要求6所述的电热水器，其特征在于，所述控制器用于在所述保温状态下控制所述加热装置停止加热。
  8. 如权利要求1所述的电热水器，其特征在于，所述第一传感器设置于所述进水端；所述第一传感器用于检测进水流量以得到所述出水流量。
  9. 一种电热水器控制方法，其特征在于，包括以下步骤：
    进入学习模式，根据预定温度控制加热装置给水箱内的蓄水加热。
    检测所述电热水器的水箱的进水温度、出水流量随时间变化的第一信息及出水温度随时间变化的第二信息；
    根据所述进水温度、所述第一信息及所述第二信息计算所述水箱出水导致的热量损失；
    根据所述热量损失计算加热温度；
    退出学习模式；
    进入智能控制模式，根据所述加热温度控制所述加热装置给所述水箱内的所述蓄水加热。
  10. 如权利要求9所述的电热水器控制方法，其特征在于，所述第一信息包括出水流量关于时间的函数；
    所述电热水器控制方法还包括以下步骤：
    根据所述第一信息选择进入用水状态或保温状态：
    若所述出水流量不低于预定流量，则进入用水状态，在所述用水状态下控制所述加热装置以第一功率加热；以及
    若所述出水流量持续低于所述预定流量达到预设时长，则进入保温状态，且在所述保温状态下控制所述加热装置以小于所述第一功率的第二功率运行。
  11. 如权利要求10所述的电热水器控制方法，其特征在于，还包括以下步骤：
    在所述学习模式下记录所述用水状态对应的使用时间；
    在所述智能控制模式下，根据所述使用时间得到预测用水时间；以及
    在所述智能控制模式下，根据所述预测用水时间进入所述用水状态。
  12. 如权利要求11所述的电热水器控制方法，其特征在于，在所述保温状态下控制所述加热装置停止加热。
  13. 如权利要求9所述的电热水器控制方法，其特征在于，还包括以下步骤：
    接收用户输入以进入所述学习模式；或
    接收用户输入以退出所述学习模式以进入所述智能控制模式。
PCT/CN2016/080504 2015-11-06 2016-04-28 电热水器及其控制方法 WO2017075948A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510752257.7A CN105352192B (zh) 2015-11-06 2015-11-06 电热水器及其控制方法
CN201510752257.7 2015-11-06

Publications (1)

Publication Number Publication Date
WO2017075948A1 true WO2017075948A1 (zh) 2017-05-11

Family

ID=55328211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/080504 WO2017075948A1 (zh) 2015-11-06 2016-04-28 电热水器及其控制方法

Country Status (2)

Country Link
CN (1) CN105352192B (zh)
WO (1) WO2017075948A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108692463A (zh) * 2018-06-04 2018-10-23 芜湖美的厨卫电器制造有限公司 热水器的控制方法、系统及热水器
CN109595787A (zh) * 2019-01-14 2019-04-09 广东盈科电子有限公司 一种温度漂移自动校准的恒温热水器及该恒温热水器的自动校准控制方法
CN112263143A (zh) * 2020-10-23 2021-01-26 佛山市顺德区美的饮水机制造有限公司 用于即热式饮水设备的方法、装置、存储介质及处理器
CN113551427A (zh) * 2021-07-20 2021-10-26 珠海格力电器股份有限公司 热水器的控制方法、装置、热水器及存储介质
CN115191833A (zh) * 2022-07-27 2022-10-18 深圳安吉尔饮水产业集团有限公司 一种带动态学习的即热系统的控制算法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105352192B (zh) * 2015-11-06 2017-05-10 芜湖美的厨卫电器制造有限公司 电热水器及其控制方法
CN106123305B (zh) * 2016-07-29 2019-02-01 芜湖美的厨卫电器制造有限公司 电热水器的加热控制方法以及电热水器
CN108286819B (zh) * 2017-01-09 2020-10-16 芜湖美的厨卫电器制造有限公司 电热水器及其控制方法
CN107202428B (zh) * 2017-06-28 2020-10-16 合肥工业大学 一种单个电热水器状态估计方法
CN107560173A (zh) * 2017-08-03 2018-01-09 广东美的暖通设备有限公司 热泵热水机及其控制方法、控制装置
CN107975945B (zh) * 2017-11-24 2021-03-23 北京小米移动软件有限公司 热水器的控制方法及装置
CN115111782A (zh) * 2022-06-22 2022-09-27 中山火炬职业技术学院 基于储水式电热水器用电负荷的洗浴时长预测方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003343922A (ja) * 2002-05-29 2003-12-03 Mitsubishi Electric Corp 給湯器およびその沸き上げ制御方法
CN1467455A (zh) * 2002-06-14 2004-01-14 三洋电机株式会社 热水器
CN201229050Y (zh) * 2008-04-29 2009-04-29 张方利 一种全自动恒温式电热水器
CN103562645A (zh) * 2011-06-03 2014-02-05 瑞姆澳大利亚控股有限公司 热水器控制器或系统
CN103925703A (zh) * 2014-01-16 2014-07-16 中山市汉功电器有限公司 一种电热水器及其控制方法
CN105352192A (zh) * 2015-11-06 2016-02-24 芜湖美的厨卫电器制造有限公司 电热水器及其控制方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003343922A (ja) * 2002-05-29 2003-12-03 Mitsubishi Electric Corp 給湯器およびその沸き上げ制御方法
CN1467455A (zh) * 2002-06-14 2004-01-14 三洋电机株式会社 热水器
CN201229050Y (zh) * 2008-04-29 2009-04-29 张方利 一种全自动恒温式电热水器
CN103562645A (zh) * 2011-06-03 2014-02-05 瑞姆澳大利亚控股有限公司 热水器控制器或系统
CN103925703A (zh) * 2014-01-16 2014-07-16 中山市汉功电器有限公司 一种电热水器及其控制方法
CN105352192A (zh) * 2015-11-06 2016-02-24 芜湖美的厨卫电器制造有限公司 电热水器及其控制方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108692463A (zh) * 2018-06-04 2018-10-23 芜湖美的厨卫电器制造有限公司 热水器的控制方法、系统及热水器
CN108692463B (zh) * 2018-06-04 2024-02-02 芜湖美的厨卫电器制造有限公司 热水器的控制方法、系统及热水器
CN109595787A (zh) * 2019-01-14 2019-04-09 广东盈科电子有限公司 一种温度漂移自动校准的恒温热水器及该恒温热水器的自动校准控制方法
CN112263143A (zh) * 2020-10-23 2021-01-26 佛山市顺德区美的饮水机制造有限公司 用于即热式饮水设备的方法、装置、存储介质及处理器
CN112263143B (zh) * 2020-10-23 2022-06-14 佛山市顺德区美的饮水机制造有限公司 用于即热式饮水设备的方法、装置、存储介质及处理器
CN113551427A (zh) * 2021-07-20 2021-10-26 珠海格力电器股份有限公司 热水器的控制方法、装置、热水器及存储介质
CN113551427B (zh) * 2021-07-20 2022-07-12 珠海格力电器股份有限公司 热水器的控制方法、装置、热水器及存储介质
CN115191833A (zh) * 2022-07-27 2022-10-18 深圳安吉尔饮水产业集团有限公司 一种带动态学习的即热系统的控制算法
CN115191833B (zh) * 2022-07-27 2024-05-03 深圳安吉尔饮水产业集团有限公司 一种带动态学习的即热系统的控制算法

Also Published As

Publication number Publication date
CN105352192B (zh) 2017-05-10
CN105352192A (zh) 2016-02-24

Similar Documents

Publication Publication Date Title
WO2017075948A1 (zh) 电热水器及其控制方法
US20110211612A1 (en) Temperature sensor array and method of analyzing a condition of water in a tank of a water heating system
CN110470059B (zh) 电热水器的控制方法
CN114501698A (zh) 一种加热控制方法、装置、计算机设备以及存储介质
JP2002186570A (ja) 暖房便座の制御方法
CN111023581A (zh) 一种零冷水式电热水器及其控制方法
JP4710511B2 (ja) 貯湯式給湯機
CN104110886A (zh) 电热水器及其控制方法
JP2011069565A (ja) 貯湯式電気温水器
JP2008069990A (ja) 給湯機
CN203893438U (zh) 电热水器
JP2008002784A (ja) 風呂用給湯装置
JP5126433B1 (ja) 給湯装置
CN110567163A (zh) 一种热水器控制方法、装置及热水器
JP2010002113A (ja) 制御装置
TWI767557B (zh) 智能電加熱裝置
JP5894961B2 (ja) 貯湯式温水供給装置
JP2019160639A (ja) 燃料電池システム
JP4882485B2 (ja) 電気湯沸かし器
JP2011038676A (ja) 貯湯式電気温水器
JP2914703B2 (ja) 循環式浴水保温装置のヒータ制御方法
CN107289632B (zh) 一种智能回水控制方法、控制器及控制系统
JP3659228B2 (ja) 電気湯沸かし器
JPS6030929A (ja) 貯湯式電気温水器の制御装置
JPS6030935A (ja) 貯湯式電気温水器の制御装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16861221

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16861221

Country of ref document: EP

Kind code of ref document: A1