CN108286814B - Electric water heater and control method thereof - Google Patents
Electric water heater and control method thereof Download PDFInfo
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- CN108286814B CN108286814B CN201710014092.2A CN201710014092A CN108286814B CN 108286814 B CN108286814 B CN 108286814B CN 201710014092 A CN201710014092 A CN 201710014092A CN 108286814 B CN108286814 B CN 108286814B
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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
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Abstract
The invention discloses an electric water heater and a control method thereof, wherein the control method of the electric water heater comprises the following steps: receiving a control instruction of a user; setting a first heating time period in each day in the period according to the control instruction; when the electric water heater is in a first heating time period, the water is heated to a first preset temperature, and time periods except the first heating time period in a day are set as standby time periods. According to the technical scheme, water is heated to a first preset temperature in a first heating time period to meet the water consumption condition of a user; the electric water heater is set to be in a standby state in a non-heating time period, so that the power consumption of the electric water heater is greatly reduced, and the timeliness and low power consumption of water are organically unified.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to an electric water heater and a control method thereof.
Background
Along with the improvement of the living standard of people, the energy-saving requirement of people on the water heater is higher and higher. The control of the existing water heater only comprises a startup circulation heating mode and a shutdown mode, when the water heater is shut down, a user cannot timely use hot water, and when the water heater is in a circulation heating mode, electric energy is often wasted due to repeated heating of water, so that the timeliness of water consumption of the user and the utilization rate of energy cannot be unified, and the use requirement of the user on the water heater cannot be met.
Disclosure of Invention
The invention mainly aims to provide a water heater, aiming at improving the timeliness and the energy utilization rate of water used by a user of the water heater.
In order to achieve the above purpose, the control method of the electric water heater provided by the invention comprises the following steps:
receiving a control instruction of a user;
setting a first heating time period in each day in the period according to the control instruction;
when the electric water heater is in a first heating time period, the water is heated to a first preset temperature, and time periods except the first heating time period in a day are set as standby time periods.
Preferably, after the step of setting the first heating time period in each day of the cycle according to the control instruction, the method further comprises:
recording and counting the water consumption of each water consumption time period every day in the period;
and when the water consumption is greater than or equal to the first preset water consumption, adding the water consumption time period corresponding to the water consumption into the first heating time period.
Preferably, after the step of setting the first heating time period in each day of the cycle according to the control instruction, the method further comprises:
recording and counting the water consumption of each water consumption time period every day in the period;
when the water consumption is more than or equal to a second preset water consumption and less than the first preset water consumption, setting a water consumption time period corresponding to the water consumption as a second heating time period;
and when the electric water heater is in the second heating time period, heating the water to a second preset water temperature.
Preferably, before the step of heating the water to the first preset temperature when the electric water heater is in the first heating period, setting a period of time other than the first heating period in a day as the standby period, the method further comprises:
detecting the current water temperature in the current electric water heater;
comparing the current water temperature with a first preset water temperature;
when the current water temperature is lower than the first preset water temperature, a preset heating assembly and a preset heating time length are selected according to the difference value of the first preset water temperature and the current water temperature.
Preferably, after the step of heating the water to the first preset temperature when the electric water heater is in the first heating period, setting a period of time other than the first heating period in a day as the standby period, the method further comprises:
and when the water consumption reaches the third preset water consumption, heating the water temperature of the electric water heater to the third preset temperature from the moment when the third preset water consumption is reached.
The present invention further provides an electric water heater comprising:
the receiving module is used for receiving a control instruction of a user;
the adjusting module is used for setting a first heating time period in each day in the period according to the control instruction;
the control module is used for heating the water to a first preset temperature when the electric water heater is in a first heating time period, and setting time periods except the first heating time period in one day as standby time periods.
Preferably, the electric water heater further comprises:
the first statistical module is used for recording and counting the water consumption of each water consumption time interval every day in a period;
the first time-adjusting module is used for adding the water using time period corresponding to the water using amount into the first heating time period when the water using amount is larger than or equal to the first preset water using amount.
Preferably, the electric water heater further comprises:
the second statistical module is used for recording and counting the water consumption of each water consumption time interval every day in the period;
the second time-adjusting module is used for setting the water using time period corresponding to the water using amount as a second heating time period when the water using amount is larger than or equal to a second preset water using amount and is smaller than the first preset water using amount;
the first heating module is used for heating the water to a second preset water temperature when the electric water heater is in a second heating time period.
Preferably, the electric water heater further comprises:
the detection module is used for detecting the current water temperature in the current electric water heater;
the comparison module is used for comparing the current water temperature with a first preset water temperature;
and the second heating module is used for selecting a preset heating component and heating time according to the difference value between the first preset water temperature and the current water temperature when the current water temperature is lower than the first preset water temperature.
Preferably, the electric water heater further comprises:
and the third heating module is used for heating the water temperature of the electric water heater to a third preset temperature from the moment when the water consumption reaches a third preset water consumption.
In the invention, the electric water heater firstly receives a control instruction of a user and enters a preheating mode; setting a first heating time interval in each day in the period according to the control instruction; then, when the electric water heater is in a first heating time period, heating the water to a first preset temperature, and setting time periods except the first heating time period in one day as standby time periods; in the technical scheme, the water consumption condition of a user is met by heating the water to the first preset temperature in the first heating time period; the electric water heater is set to be in a standby state in a non-heating time period, so that the power consumption of the electric water heater is greatly reduced, and the timeliness and low power consumption of water are organically unified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of an electric water heater according to the present invention;
FIG. 2 is a schematic flow chart illustrating a control method of an electric water heater according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating another embodiment of a control method of an electric water heater according to the present invention;
FIG. 4 is a functional block diagram of an embodiment of an electric water heater according to the present invention;
fig. 5 is a schematic diagram of functional modules of another embodiment of the electric water heater according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 5, the water heater controlled by the present invention is exemplified by an electric water heater, which includes an inner container 200 for storing water, a heating device 300 for heating water, a casing 100 disposed outside the inner container 200 for protecting the inner container 200 and the insulation water, a water temperature detecting device for detecting a water temperature, and a display panel 500 for displaying the water temperature. The temperature detection device 400 is used for detecting the temperature of water in the water heater liner 200; the temperature detecting device 400 may be a temperature sensing probe or any other temperature sensor capable of detecting the temperature of water. The result of the water temperature detection can be the result of the latest detection or the average value of a plurality of detections in unit time. For example, the temperature detection device 400 may use the last detected temperature as the detected temperature, or may detect the last detected temperature for 5 times within 2 seconds, and then use the detection result of the 5 times as the detection value.
The following control method of the electric water heater provided according to the above structure of the electric water heater comprises the following steps:
s10, receiving a control instruction of a user;
in this embodiment, there are various ways for a user to send a control instruction to the electric water heater, for example, the user may send the control instruction through a wireless network by using a mobile terminal (e.g., a remote controller, a mobile phone, a tablet electric energy, an intelligent bracelet, an intelligent watch, etc.), and the user may also send the control instruction through a physical key electrically connected to a main control board of the electric water heater. It can be understood that before the user sends the control instruction to the electric water heater through the mobile terminal, a communication connection needs to be established with the electric water heater. That is, only on the basis that the mobile terminal establishes communication connection with the electric water heater, the mobile terminal can control the electric water heater through a control instruction, or information interaction between the mobile terminal and the electric water heater needs to be mutually authenticated. After receiving the control instruction of the user, the electric water heater starts the heating program in the following embodiment. The control instructions include a heating start time and a heating end time.
S20, setting a first heating time period in each day in the cycle according to the control instruction;
in this embodiment, the number of the first heating periods may be multiple, and the multiple first heating periods may be continuous or discontinuous, for example, 19:00 to 22:00, 8:00 to 10:00, and the like. The time corresponding to the first heating time interval can be set according to the requirements of the user, and of course, the electric water heater can also be set according to the water use habit of the user and the current actual water use condition. The period may be set according to the actual situation of the user, and 21 days is taken as an example. Of course, the electric water heater can obtain the current time in various ways, and the electric water heater can have a timing device by itself or can obtain the current time through a wireless network. By accurately acquiring the current time, the current time interval can be accurately judged.
And S30, heating the water to a first preset temperature when the electric water heater is in a first heating period, and setting the time periods except the first heating period in one day as standby time periods.
When the electric water heater is in the appointed heating mode and the current time period belongs to the first heating time period, the electric water heater heats the water in the inner container and heats the water to a first preset temperature. The first preset temperature is set by a user, and of course, the first preset temperature can also be set by the electric water heater according to the use habit of the user and the current water use condition. Through with water heating to first predetermined temperature in first heating interval, can be fine satisfy user's water. The time periods except the first heating time period in one day are set as standby time periods, and in the standby time periods, the electric water heater is not heated and does not keep warm and is in the lowest power consumption state, but can receive any operation instruction of a user at any time. The first heating time interval is 19: 00-22: 00, 8: 00-10: 00, and the non-heating time interval is: 10: 00-19: 00, 22: 00-08: 00. By setting the electric water heater to be in a standby state in a non-heating time period, the power consumption of the electric water heater is greatly reduced.
In this embodiment, the electric water heater first receives a control instruction of a user, and enters a preheating mode; setting a first heating time interval in each day in the period according to the control instruction; then, when the electric water heater is in a first heating time period, heating the water to a first preset temperature, and setting time periods except the first heating time period in one day as standby time periods; in the technical scheme, the water consumption condition of a user is met by heating the water to the first preset temperature in the first heating time period; the electric water heater is set to be in a standby state in a non-heating time period, so that the power consumption of the electric water heater is greatly reduced, and the timeliness and low power consumption of water are organically unified.
In order to provide hot water for users more accurately, the method further comprises the following steps after the step of setting the first heating time period in each day in the cycle according to the control instruction:
s40, recording and counting the water consumption of each water consumption time period every day in the period;
in this embodiment, the cycle is exemplified by 21 days, and each day is divided into six time periods, which are respectively 3: 00-7: 00, 7: 00-11: 00, 11: 00-15: 00, 15: 00-19: 00, 19: 00-23: 00, 23: 00-3: 00. During each period, the number of times the user uses water, and the amount of water used per time, is recorded. Of course, before statistics, the heating control needs to be periodically set, each period time length and water use time period are divided, and the water use condition of the user in each water use time period, namely the water use times, the water use frequency, the water use temperature and the water use amount, is recorded. This process, during the learning of the water heater, is performed during a first period according to preset parameters, such as a first heating time period preset at 19 a per day, for other water usage parameters not set by the user: 00-22: 00 and 7: 00-11: 00, and the like. The second overtime period is set according to the water consumption condition of the first period of the user, and the third period is adjusted according to the water consumption conditions of the first period and the second period.
And S50, when the water consumption is greater than or equal to the first preset water consumption, adding the water consumption time corresponding to the water consumption into the first heating time.
And (3) counting the water consumption of each water consumption in all the water consumption time periods, calculating the total water consumption in each water consumption time period, and dividing the total water consumption by the total days of water consumption to obtain the average water consumption of the water used in each time period in each period. For example, first, 11: 00-15: 00 water consumption, and then adding the water consumption in 21 time periods in the period to obtain a water consumption in 11 time periods: and (3) dividing the total water consumption in the period of 00-15: 00 by the cycle days of 21 days to obtain the average water consumption of each day in the time period. And comparing the average water consumption with the first preset water consumption, and when the average water consumption is greater than or equal to the first preset water consumption, putting the time period corresponding to the average water consumption into the first heating time period. The first preset water usage is 20L, i.e. when the time period 11: when the average water consumption of 00-15: 00 is more than or equal to 20L, the time period is 11: 00-15: 00 will be part of the first heating period of the next cycle. Of course, if the first heating time interval is originally set, when the statistical average water consumption is less than the first preset water consumption, the first heating time interval can be removed, that is, the water temperature is not heated to the first preset water temperature any more in the time interval.
In this embodiment, the electric water heater adds the water usage period to the first heating period when the average water consumption is greater than or equal to the first preset water consumption by recording and counting the actual water usage in the user cycle and adjusting the first heating period according to the actual water usage, and removes the water usage period from the first heating period when the average water consumption is less than the first preset water consumption.
In order to provide hot water for users more accurately, the method further comprises the following steps after the step of setting the first heating time period in each day in the cycle according to the control instruction: recording and counting the water consumption of each water consumption time period every day in the period; when the water consumption is more than or equal to a second preset water consumption and less than the first preset water consumption, setting a water consumption time period corresponding to the water consumption as a second heating time period; and when the electric water heater is in the second heating time period, heating the water to a second preset water temperature.
In other embodiments, when the average water consumption is less than the first preset water consumption, the average water consumption is compared with a second preset water consumption, and when the average water consumption is greater than or equal to the second preset water consumption, the water consumption time period corresponding to the water consumption is set as the second heating time period. And when the electric water heater is in the second heating time period, heating the water to a second preset water temperature. The first preset water consumption is 20L for example, and the second preset water consumption is 10L for example, namely when the time period is 11: when the average water consumption of 00-15: 00 is less than 20L and is more than or equal to 10L, the time period is 7: 00-11: 00 is the second heating time period. When the current time interval is the second heating time interval, the water consumption of the user is less than that of the user in the first heating time interval in the water consumption time interval, and at the moment, the second preset water temperature is set to be less than the first preset water temperature. The heating time interval of the electric water heater is set hierarchically according to the water using habit and the actual water using condition, and the electric water heater organically integrates water supply and energy saving under the condition that a user does not need to set any time interval.
In order to further reduce the energy consumption of the electric water heater, before the step of heating the water to the first preset temperature when the electric water heater is in the first heating period, setting a period of time of a day other than the first heating period as a standby period, the method further comprises:
detecting the current water temperature in the current electric water heater;
there are many ways to detect the current water temperature of an electric water heater, for example, by arranging a temperature sensor in the inner container, it is of course possible to arrange a temperature sensor at a hot water outlet, etc. The temperature sensor sends the detected water temperature to a main control board of the electric water heater.
Comparing the current water temperature with a first preset water temperature;
in this embodiment, the main control board compares the current water temperature value with the first preset water temperature value when receiving the current water temperature, and the comparison of the two temperature values can be performed through the comparison circuit, and certainly, can also be performed through the chip. When the current water temperature is higher than the first preset water temperature, the water in the inner container is not heated.
When the current water temperature is lower than the first preset water temperature, a preset heating assembly and a preset heating time length are selected according to the difference value of the first preset water temperature and the current water temperature.
The main control board of the electric water heater controls the electric water heater according to a comparison result of the detected water temperature and the first preset water temperature, and when the current water temperature is lower than the first preset water temperature, a preset heating assembly and a preset heating time length are selected according to a difference value of the first preset water temperature and the current water temperature. Corresponding to different temperature differences, different heating components are arranged. The water quantity of the water to be heated is constant, and the target hot water temperature is constant. That is, when the temperature difference is larger, the heating power of the corresponding heating component is higher; when the temperature difference is smaller, the heating power of the corresponding heating component is lower.
In order to improve the energy saving efficiency of the water heater, after the step of heating the water to the first preset temperature when the electric water heater is in the first heating period, setting a period of time of a day other than the first heating period as a standby period, the method further comprises the following steps:
and when the water consumption reaches the third preset water consumption, heating the water temperature of the electric water heater to the third preset temperature from the moment when the third preset water consumption is reached.
In this embodiment, the third predetermined water consumption is greater than the first predetermined water consumption, for example, 50L to 70L. Due to living needs, the water consumption in the home is suddenly and greatly increased at some time, for example, guests come in. When the total water consumption of the day is more than or equal to the third preset water consumption, the current water demand of the user at home is particularly large. At this time, the water heater is not limited by a high-temperature time period, a low-temperature time period, dormancy and the like, and the water temperature is heated to a third preset water temperature all the time. The third preset water temperature can be larger than the first preset water temperature, can also be smaller than the first preset water temperature, and can even be adjusted and set according to a control instruction of a user. Through the setting of third predetermined water consumption to water consumption on the same day is from reaching the time of third predetermined water consumption, with the temperature heating of electric water heater to the third temperature of predetermineeing, the abundant water demand that has guaranteed the user is favorable to the better use water heater of user.
The present invention further provides an electric water heater comprising:
a receiving module 10, configured to receive a control instruction of a user;
in this embodiment, there are various ways for a user to send a control instruction to the electric water heater, for example, the user may send the control instruction through a wireless network by using a mobile terminal (e.g., a remote controller, a mobile phone, a tablet electric energy, an intelligent bracelet, an intelligent watch, etc.), and the user may also send the control instruction through a physical key electrically connected to a main control board of the electric water heater. It can be understood that before the user sends the control instruction to the electric water heater through the mobile terminal, a communication connection needs to be established with the electric water heater. That is, only on the basis that the mobile terminal establishes communication connection with the electric water heater, the mobile terminal can control the electric water heater through a control instruction, or information interaction between the mobile terminal and the electric water heater needs to be mutually authenticated. After receiving the control instruction of the user, the electric water heater starts the heating program in the following embodiment.
The adjusting module 20 is used for setting a first heating time period in each day in the cycle according to the control instruction;
in this embodiment, the number of the first heating periods may be multiple, and the multiple first heating periods may be continuous or discontinuous, for example, 19:00 to 22:00, 8:00 to 10:00, and the like. The time corresponding to the first heating time interval can be set according to the requirements of the user, and of course, the electric water heater can also be set according to the water use habit of the user and the current actual water use condition. The period may be set according to the actual situation of the user, and 21 days is taken as an example. Of course, the electric water heater can obtain the current time in various ways, and the electric water heater can have a timing device by itself or can obtain the current time through a wireless network. By accurately acquiring the current time, the current time interval can be accurately judged.
The control module 30 is configured to heat the water to a first preset temperature when the electric water heater is in a first heating period, and set a period of time other than the first heating period in a day as a standby period of time.
When the electric water heater is in the appointed heating mode and the current time period belongs to the first heating time period, the electric water heater heats the water in the inner container and heats the water to a first preset temperature. The first preset temperature is set by a user, and of course, the first preset temperature can also be set by the electric water heater according to the use habit of the user and the current water use condition. Through with water heating to first predetermined temperature in first heating interval, can be fine satisfy user's water. The time periods except the first heating time period in one day are set as standby time periods, and in the standby time periods, the electric water heater is not heated and does not keep warm and is in the lowest power consumption state, but can receive any operation instruction of a user at any time. The first heating time interval is 19: 00-22: 00, 8: 00-10: 00, and the non-heating time interval is: 10: 00-17: 00, 22: 00-08: 00. By setting the electric water heater to be in a standby state in a non-heating time period, the power consumption of the electric water heater is greatly reduced.
In this embodiment, the electric water heater first receives a control instruction of a user, and enters a preheating mode; setting a first heating time interval in each day in the period according to the control instruction; then, when the electric water heater is in a first heating time period, heating the water to a first preset temperature, and setting time periods except the first heating time period in one day as standby time periods; in the technical scheme, the water consumption condition of a user is met by heating the water to the first preset temperature in the first heating time period; the electric water heater is set to be in a standby state in a non-heating time period, so that the power consumption of the electric water heater is greatly reduced, and the timeliness and low power consumption of water are organically unified.
In order to more accurately provide hot water for users, the electric water heater further comprises:
the first statistical module 40 is used for recording and counting the water consumption of each water consumption time interval of each day in the period;
in this embodiment, the cycle is exemplified by 21 days, and each day is divided into six time periods, which are respectively 3: 00-7: 00, 7: 00-11: 00, 11: 00-15: 00, 15: 00-19: 00, 19: 00-23: 00, 23: 00-3: 00. During each period, the number of times the user uses water, and the amount of water used per time, is recorded. Of course, before statistics, the heating control needs to be periodically set, each period time length and water using time period are divided, and the water using condition of the user in each water using time, namely the water using times, the water using frequency, the water using temperature and the water using quantity are recorded. This process, during the learning of the water heater, is performed during a first period according to preset parameters, such as a first heating time period preset at 19 a per day, for other water usage parameters not set by the user: 00-22: 00 and 7: 00-11: 00, and the like. The second overtime period is set according to the water consumption condition of the first period of the user, and the third period is adjusted according to the water consumption conditions of the first period and the second period.
The first time adjusting module 50 is configured to add the water usage period corresponding to the water usage amount to the first heating period when the water usage amount is greater than or equal to a first preset water usage amount.
And (3) counting the water consumption of each water consumption in all the water consumption time periods, calculating the total water consumption in each water consumption time period, and dividing the total water consumption by the total days of water consumption to obtain the average water consumption of the water used in each time period in each period. For example, first, 11: 00-15: 00 water consumption, and then adding the water consumption in 21 time periods in the period to obtain a water consumption in 11 time periods: and (3) dividing the total water consumption in the period of 00-15: 00 by the cycle days of 21 days to obtain the average water consumption of each day in the time period. And comparing the average water consumption with the first preset water consumption, and when the average water consumption is greater than or equal to the first preset water consumption, putting the time period corresponding to the average water consumption into the first heating time period. The first preset water usage is 20L, i.e. when the time period 11: when the average water consumption of 00-15: 00 is more than or equal to 20L, the time period is 11: 00-15: 00 will be part of the first heating period of the next cycle. Of course, if the first heating time interval is originally set, when the statistical average water consumption is less than the first preset water consumption, the first heating time interval can be removed, that is, the water temperature is not heated to the first preset water temperature any more in the time interval.
In this embodiment, the electric water heater adds the water usage period to the first heating period when the average water consumption is greater than or equal to the first preset water consumption by recording and counting the actual water usage in the user cycle and adjusting the first heating period according to the actual water usage, and removes the water usage period from the first heating period when the average water consumption is less than the first preset water consumption.
In order to more accurately provide hot water for users, the electric water heater further comprises: the second statistical module is used for recording and counting the water consumption of each water consumption time interval every day in the period; the second time-adjusting module is used for setting the water using time period corresponding to the water using amount as a second heating time period when the water using amount is larger than or equal to a second preset water using amount and is smaller than the first preset water using amount; the first heating module is used for heating the water to a second preset water temperature when the electric water heater is in a second heating time period.
In other embodiments, when the average water consumption is less than the first preset water consumption, the average water consumption is compared with a second preset water consumption, and when the average water consumption is greater than or equal to the second preset water consumption, the water consumption time period corresponding to the water consumption is set as the second heating time period. And when the electric water heater is in the second heating time period, heating the water to a second preset water temperature. The first preset water consumption is 20L for example, and the second preset water consumption is 10L for example, namely when the time period is 11: when the average water consumption of 00-15: 00 is less than 20L and is more than or equal to 10L, the time period is 7: 00-11: 00 is the second heating time period. When the current time interval is the second heating time interval, the water consumption of the user is less than that of the user in the first heating time interval in the water consumption time interval, and at the moment, the second preset water temperature is set to be less than the first preset water temperature. The heating time interval of the electric water heater is set hierarchically according to the water using habit and the actual water using condition, and the electric water heater organically integrates water supply and energy saving under the condition that a user does not need to set any time interval.
In order to further reduce the energy consumption of the electric water heater, the electric water heater further comprises:
the detection module is used for detecting the current water temperature in the current electric water heater;
there are many ways to detect the current water temperature of an electric water heater, for example, by arranging a temperature sensor in the inner container, it is of course possible to arrange a temperature sensor at a hot water outlet, etc. The temperature sensor sends the detected water temperature to a main control board of the electric water heater.
The comparison module is used for comparing the current water temperature with a first preset water temperature;
in this embodiment, the main control board compares the current water temperature value with the first preset water temperature value when receiving the current water temperature, and the comparison of the two temperature values can be performed through the comparison circuit, and certainly, can also be performed through the chip. When the current water temperature is higher than the first preset water temperature, the water in the inner container is not heated.
And the second heating module is used for selecting a preset heating component and heating time according to the difference value between the first preset water temperature and the current water temperature when the current water temperature is lower than the first preset water temperature.
The main control board of the electric water heater controls the electric water heater according to a comparison result of the detected water temperature and the first preset water temperature, and when the current water temperature is lower than the first preset water temperature, a preset heating assembly and a preset heating time length are selected according to a difference value of the first preset water temperature and the current water temperature. Corresponding to different temperature differences, different heating components are arranged. The water quantity of the water to be heated is constant, and the target hot water temperature is constant. That is, when the temperature difference is larger, the heating power of the corresponding heating component is higher; when the temperature difference is smaller, the heating power of the corresponding heating component is lower.
In order to improve the energy saving efficiency of the water heater, the electric water heater further comprises:
and the third heating module is used for heating the water temperature of the electric water heater to a third preset temperature from the moment when the water consumption reaches a third preset water consumption.
In this embodiment, the third predetermined water consumption is greater than the first predetermined water consumption, for example, 50L to 70L. Due to living needs, the water consumption in the home is suddenly and greatly increased at some time, for example, guests come in. When the total water consumption of the day is more than or equal to the third preset water consumption, the current water demand of the user at home is particularly large. At this time, the water heater is not limited by a high-temperature time period, a low-temperature time period, dormancy and the like, and the water temperature is heated to a third preset water temperature all the time. The third preset water temperature can be larger than the first preset water temperature, can also be smaller than the first preset water temperature, and can even be adjusted and set according to a control instruction of a user. Through the setting of third predetermined water consumption to water consumption on the same day is from reaching the time of third predetermined water consumption, with the temperature heating of electric water heater to the third temperature of predetermineeing, the abundant water demand that has guaranteed the user is favorable to the better use water heater of user.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A control method of an electric water heater is characterized by comprising the following steps:
receiving a control instruction of a user;
setting a first heating time period in each day in the period according to the control instruction;
when the electric water heater is in a first heating time period, heating water to a first preset temperature, and setting time periods except the first heating time period in a day as standby time periods;
the method further comprises the following steps after the step of setting the first heating time period in each day in the cycle according to the control instruction: recording and counting the water consumption of each water consumption time interval of each day in the period, and adding the water consumption time interval corresponding to the water consumption into the first heating time interval when the water consumption is more than or equal to the first preset water consumption;
the method comprises the following steps of recording and counting the water consumption of each water consumption time interval of each day in a period, and adding the water consumption time interval corresponding to the water consumption into a first heating time interval when the water consumption is more than or equal to a first preset water consumption:
calculating the water consumption of each water consumption in all water consumption time periods, and calculating the total water consumption in each water consumption time period to obtain the average water consumption of each time period in each period;
and when the average water consumption is greater than or equal to a first preset water consumption, the time period corresponding to the average water consumption is included in a first heating time period.
2. The method of claim 1, further comprising, after the step of setting a first heating period for each day of the cycle according to the control instruction:
and when the statistical average water consumption of the first heating time interval is less than the first preset water consumption, removing the time interval out of the first heating time interval.
3. The method of claim 1, further comprising, after the step of setting a first heating period for each day of the cycle according to the control instruction:
recording and counting the water consumption of each water consumption time period every day in the period;
when the water consumption is more than or equal to a second preset water consumption and less than the first preset water consumption, setting a water consumption time period corresponding to the water consumption as a second heating time period;
and when the electric water heater is in the second heating time period, heating the water to a second preset water temperature.
4. The method of claim 1, wherein before the step of heating the water to a first preset temperature when the electric water heater is in a first heating period, setting a period of time other than the first heating period in a day as a standby period, further comprises:
detecting the current water temperature in the current electric water heater;
comparing the current water temperature with a first preset water temperature;
when the current water temperature is lower than the first preset water temperature, a preset heating assembly and a preset heating time length are selected according to the difference value of the first preset water temperature and the current water temperature.
5. The method of claim 1, wherein after the step of heating the water to a first preset temperature when the electric water heater is in a first heating period, setting a period of time other than the first heating period in a day as a standby period, further comprising:
and when the water consumption reaches the third preset water consumption, heating the water temperature of the electric water heater to the third preset temperature from the moment when the third preset water consumption is reached.
6. An electric water heater, comprising:
the receiving module is used for receiving a control instruction of a user;
the adjusting module is used for setting a first heating time period in each day in the period according to the control instruction;
the control module is used for heating the water to a first preset temperature when the electric water heater is in a first heating time period, and setting time periods except the first heating time period in one day as standby time periods;
the electric water heater further comprises:
the first statistical module is used for recording and counting the water consumption of each water consumption time interval every day in a period;
the first time adjusting module is used for adding the water using time period corresponding to the water using amount into the first heating time period when the water using amount is larger than or equal to a first preset water using amount;
the first statistical module is used for counting the water consumption of each water consumption in all water consumption time periods, and calculating the total water consumption in each water consumption time period to obtain the average water consumption of each time period in each period; the first time-adjusting module is used for enabling the time period corresponding to the average water consumption to be included in the first heating time period when the average water consumption is larger than or equal to a first preset water consumption.
7. The electric water heater of claim 6, wherein the first timing module is further configured to remove the first heating session when the statistical average water usage for the first heating session is less than a first predetermined water usage.
8. The electric water heater of claim 6, further comprising:
the second statistical module is used for recording and counting the water consumption of each water consumption time interval every day in the period;
the second time-adjusting module is used for setting the water using time period corresponding to the water using amount as a second heating time period when the water using amount is larger than or equal to a second preset water using amount and is smaller than the first preset water using amount;
the first heating module is used for heating the water to a second preset water temperature when the electric water heater is in a second heating time period.
9. The electric water heater of claim 6, further comprising:
the detection module is used for detecting the current water temperature in the current electric water heater;
the comparison module is used for comparing the current water temperature with a first preset water temperature;
and the second heating module is used for selecting a preset heating component and heating time according to the difference value between the first preset water temperature and the current water temperature when the current water temperature is lower than the first preset water temperature.
10. The electric water heater of claim 6, further comprising:
and the third heating module is used for heating the water temperature of the electric water heater to a third preset temperature from the moment when the water consumption reaches a third preset water consumption.
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| CN113983698A (en) * | 2021-10-26 | 2022-01-28 | 镇江市博德电气设备有限公司 | Control method of electric water boiler and electric water boiler |
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| JP2020067254A (en) | 2018-10-26 | 2020-04-30 | 株式会社ノーリツ | Hot water supply device |
| CN111207515B (en) * | 2018-11-21 | 2022-10-18 | 青岛经济技术开发区海尔热水器有限公司 | Control method of water heater |
| CN112013546B (en) * | 2019-05-31 | 2022-03-22 | 青岛经济技术开发区海尔热水器有限公司 | Control method of water heater and water heater |
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Effective date of registration: 20221114 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 Wan Chun East Road, East District, Wuhu economic and Technological Development Zone, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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