CN103968552B - A kind of electric heater and its control method - Google Patents

Abstract

The present invention proposes a control method for an electric water heater, which includes the following steps: recording the user's water consumption information within a preset period to generate a user's water usage habit table, wherein the water usage habit table records a plurality of user presets within a preset period Water consumption in the time zone, water use duration and water setting temperature; detect whether the user’s water use command is received; if so, control the electric water heater to enter the corresponding Operating mode. The method can be controlled according to the specific needs of users, provides convenience for users, and reduces energy consumption. The invention also proposes an electric water heater.

Description

An electric water heater and its control method

technical field

The invention relates to the technical field of kitchen and bathroom appliances, in particular to an electric water heater and a control method thereof.

Background technique

With the improvement of people's living standards, electric water heaters have gradually become more popular household appliances. Present electric water heater is generally made up of housing, the liner in the housing, electric heating component, control circuit and water inlet and outlet device. Among them, the function of the control circuit is simple, it only responds to the temperature set by the user, or only has a timing function for several time periods, and the electric water heater cannot supply hot water during the non-water supply period. For volumetric electric water heaters, the water temperature of the inner tank is always kept within a certain range of the set temperature or the maximum temperature, which will cause unnecessary energy loss when the user does not need a large amount of hot water.

In addition, there is an invention disclosing an electric water heater with a microcomputer control circuit. This electric water heater realizes the automatic control of water temperature and water level through the control of microcomputer control circuit, but, can not carry out intelligent control according to the specific usage situation of the user.

Contents of the invention

The object of the present invention is to solve at least one of the above-mentioned technical drawbacks.

Therefore, the first object of the present invention is to propose a control method for an electric water heater, which can be controlled according to the user's specific needs, provides convenience for the user, and reduces energy consumption.

The second object of the present invention is to provide an electric water heater.

In order to achieve the above purpose, the embodiment of the first aspect of the present invention proposes a control method for an electric water heater, and the method includes the following steps:

Record the user's water consumption information within the preset period to generate the user's water use habit table, wherein the water use habit table records the user's water consumption and water use duration in multiple preset time zones within the preset period Set the temperature with the water; detect whether the user’s water use command is received; if so, control the electric water heater to enter the corresponding work according to the time zone corresponding to the current time and the water use habit table of the previous preset cycle of the current time model.

According to the control method of the electric water heater in the embodiment of the present invention, the user's water usage habits are recorded through the intelligent memory function to form a water usage habit table, and the electric water heater is controlled to enter a corresponding mode for heating according to the water usage habit table, which can be intelligently controlled according to the user's specific water use conditions The work of electric water heaters brings great convenience to people, meets people's living needs, and also reduces energy consumption.

In an embodiment of the present invention, the detecting whether a user's water use instruction is received further includes: detecting whether the water flow is greater than a preset flow threshold; if so, calculating the water use time in the time zone corresponding to the current time. In addition, it also includes: judging whether the water use time is greater than the first preset time and less than the second preset time, wherein the first preset time is less than the second preset time; The user's water use command, and the water use command is the first water use command. And, if the water use time is greater than or equal to the second preset time, it is judged that the user’s water use command is received, and the water use command is the second water use command; if the water use time is less than or equal to the first If the preset time is reached, it is determined that the user's water use instruction has not been received.

In an embodiment of the present invention, the working mode is a standard constant temperature heating mode, a rapid heating mode or a constant temperature heating mode under E capacity increase. Said controlling the electric water heater to enter the corresponding working mode further includes:

When receiving the water-water command as the first water-water command, control the electric water heater to enter the standard constant temperature heating mode or the fast heating mode; when receiving the water-water command as the second water-water command, control the electric water heater to enter the Constant temperature heating mode under E capacity increase. In addition, it also includes: detecting the water use command of the user in the next time zone in the corresponding time zone within the preset period corresponding to the current time zone; when the water use command of the user in the next time zone is the first water use command, the calculation reaches the corresponding The time to set the temperature with water, and when the time to reach the corresponding set temperature with water is less than or equal to the time interval from the current time to the starting point of the next time zone, control the electric water heater to enter the standard constant temperature heating mode or fast heating mode ; When the water use command of the user in the next time zone is the second water use command, calculate the time to reach the corresponding water setting temperature, and when the time to reach the corresponding water setting temperature is less than or equal to the current time to the next At the time interval of the starting point of the time zone, the electric water heater is controlled to enter the constant temperature heating mode under the E capacity increase.

In another embodiment of the present invention, when no water instruction from a user in the next time zone is received, it is judged whether the user sets an appointment command in the next time zone; if not, control the electric water heater shutdown.

In order to achieve the above purpose, the embodiment of the second aspect of the present invention proposes an electric water heater, the electric water heater includes: a memory module, used to record the user's water consumption information within a preset period to generate the user's water usage habit table, wherein, The water usage habit table records the water consumption, water use time and water setting temperature of the user in multiple preset time zones within the preset period; the detection module is used to detect and judge the user's water use instruction; control A module for controlling the electric water heater to enter a corresponding working mode according to the received user's water use instruction, the time zone corresponding to the current time, and the water use habit table of the last preset period of the current time, wherein the The above working modes include standard constant temperature heating mode, fast heating mode and constant temperature heating mode under E capacity expansion.

According to the electric water heater of the embodiment of the present invention, the detection module detects and judges the water use command, and the control module controls the electric water heater to enter the corresponding heating mode according to the water usage table recorded by the memory module, so as to prevent the electric water heater from being in the heating state all the time and reduce energy loss . In addition, the work of the electric water heater can be intelligently controlled according to the user's specific needs, which provides convenience for the user.

In an embodiment of the present invention, the detection module is also used to detect whether the water flow is greater than the preset flow threshold, and the control module calculates the time zone corresponding to the current time when the water flow is greater than the preset flow threshold within the water time.

In an embodiment of the present invention, the control module is also used to judge the water use time, and when the water use time is greater than the first preset time and less than the second preset time, judge the user's received The water use command is a first water use command, wherein the first preset time is shorter than the second preset time.

In another embodiment of the present invention, when the water use time is greater than or equal to the second preset time, the control module judges that the user's water use command received is the second water use command, and When the time is less than or equal to the first preset time, it is determined that the user's water use instruction has not been received. When receiving the water-water command as the first water-water command, the control module controls the electric water heater to enter the standard constant temperature heating mode or fast heating mode; when receiving the water-water command as the second water-water command, the control module The module controls the electric water heater to enter the constant temperature heating mode under the E capacity increase.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

1 is a flowchart of a control method for an electric water heater according to an embodiment of the present invention;

Fig. 2 is the flow chart of carrying out intelligent memory according to an embodiment of the present invention;

Fig. 3 is a flow chart of intelligent heating control according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of an electric water heater according to an embodiment of the present invention; and

Fig. 5 is a schematic structural view of an electric water heater according to an embodiment of the present invention.

Reference numerals: memory module 401 , detection module 402 and control module 403 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials. Additionally, configurations described below in which a first feature is "on" a second feature may include embodiments where the first and second features are formed in direct contact, and may include additional features formed between the first and second features. For example, such that the first and second features may not be in direct contact.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the scope of the embodiments of the present invention is not limited by this limit. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

A control method for an electric water heater according to an embodiment of the first aspect of the present invention is described below with reference to accompanying drawings 1 to 3 .

As shown in Figure 1, the control method of the electric water heater of the embodiment of the present invention, comprises the following steps:

S101. Record the user's water consumption information within a preset period to generate a user's water usage habit table, wherein the water usage habit table records the user's water consumption, water use duration, and water use setting temperature in multiple preset time zones within the preset period.

In one embodiment of the present invention, the electric water heater has an intelligent memory function, which can record the user's water consumption information within a preset period by turning on the intelligent memory function, for example, record the user's water consumption habits within a week as shown in Table 1, as The recorded water consumption habit table of a user on a certain day of the week is assumed to be the user’s water consumption on Monday, for example, in the time zone from 19:00 to 22:00, the user uses water for 10 minutes, the water temperature is 60°C, and the water consumption is 25L.

Table 1

S102. Detect whether a user's water use instruction is received.

In one embodiment of the present invention, when the electric water heater is powered on/off, if the user turns on the smart memory function, the detection module of the electric water heater will detect the water flow of the electric water heater in real time, and can detect the water flow The flow status of the user to detect the user's water consumption in the preset time zone. Specifically, the detection module detects whether the water flow is greater than or equal to a preset flow threshold, and if so, calculates the water consumption time in the time zone corresponding to the current time. For example, if the preset flow threshold is set to 2L/min, it will detect whether the water flow is greater than or equal to 2L/min. If it is detected that the water flow is greater than or equal to 2L/min, or the water flow has risen from If it is above min, it is judged that the user’s water use command may be received, and the water use time in the current corresponding time zone is calculated. At the same time as the water use command, the user’s water use time in this time zone is calculated, that is, if it is detected that the user’s water use command may be received within the current time zone 19:00~22:00, the cumulative water use time counter in this time zone will start timing. Until the end of this time zone reaches 22:00, the water consumption time counter in this time zone will stop counting, and the water consumption time counter in the next time zone will start. 00 time zone water use time counter for timing until the user no longer uses water. In addition, when it is detected that the water flow rate is less than 1.5L/min or the water flow rate drops from 2L/min or above to 1.5L/min, it is determined that the user's water use instruction has not been received.

In one embodiment of the present invention, after judging that the user's water use instruction may be received and calculating the water use time in the time zone corresponding to the current time, it is also necessary to determine whether the calculated water use time is greater than the first preset time and less than the second preset time. A preset time, wherein the first preset time is less than the second preset time. If so, it is judged that the user's water use command is received, and the water use command is the first water use command. Specifically, for example, assuming that the first preset time is 3 minutes, the second preset time is 10 minutes, and the calculated water use time is T. Determine whether T is greater than 3 minutes and less than 10 minutes. If T is greater than 3 minutes and less than 10 minutes, the received user's water consumption command is the first water consumption command, and the first water consumption command may be a case where the user uses a small amount of water. More specifically, in terms of data setting, the user's water consumption status storage unit can be set to 1 to indicate that the user's first water consumption instruction is received.

In another embodiment of the present invention, if the water use time is greater than or equal to the second preset time, it is judged that the user's water use command is received, and the water use command is the second water use command; if the water use time is less than or equal to the first preset time, it is judged The user's water command has not been received. Specifically, for example, assuming that the first preset time is 3 minutes, the second preset time is 10 minutes, and the calculated water use time is T. If T is greater than or equal to 10 minutes, it is judged that the user's water consumption command is received, and the water consumption command is the second water consumption command, and the second water consumption command may be a case of the user using a large amount of water. If T is less than or equal to 3 minutes, it is judged that no user's water use instruction has been received. More specifically, in terms of data setting, the user's water use status storage unit can be set to 2 to indicate that the user's second water use instruction has been received, and the user's water use status storage unit to be set to 0 to indicate that the user's water use order has not been received. .

In the embodiment of the present invention, the data of the intelligent memory of the electric water heater can be updated. Specifically, when the system detects that any time zone ends, for example, in the time zone of the time zone 00:00-03:00, the time zone that ends in the time zone For example, at 03:00, the memory data before this time zone of this preset cycle is passed to the memory storage area of the last preset cycle, such as shown in Table 1, with one week as a preset cycle, and one week If each day is divided into 8 time zones, the data will be updated 8 times each day of the week. At the beginning of the next day, the data of the previous day will be cleared, and the data will be memorized and updated again. At 00:00, that is, at the end of the day, store the data, clear the data of the next day, and prepare to start memorizing the data of the next day. In addition, before recording data each time, it is necessary to read the time period of the corresponding preset period in the electric water heater, and then store the updated data in the time zone of the corresponding time period of the last preset period. If the user cancels the smart memory function at a certain time, the data of the smart memory will be retained. If the user performs factory settings, all intelligent memory data will be cleared. After power off, the water flow cannot be detected, so the smart memory function and smart heating are inactive. If the user turns on the smart memory function before power off, after power on again, the system will Data 0 is written to the storage space of the corresponding time zone.

To sum up, in one embodiment of the present invention, the process of enabling the intelligent memory function for intelligent memory is shown in Figure 2, including the following steps:

S201. Determine whether the user activates the smart memory function.

If the smart memory function is turned on, go to step S202, otherwise return.

S202, judging whether there is a user using water.

If it is judged that the user's water-water instruction is received, that is, the user is using water, go to step S203, otherwise go to step S204.

S203, start the user's water consumption timer, and record the user's water consumption time.

S204, judging whether the current time zone is over.

If yes, go to step S205, if not, go to step S201.

S205, judging whether the time of the user's water consumption timer is greater than the first preset time and less than the second preset time.

For example, the first preset time is 3 minutes, and the second preset time is 10 minutes. It is judged whether the time of the water timer is greater than 3 minutes but less than 10 minutes. If yes, go to step S206; otherwise, go to step S207.

S206, setting the storage unit of the current time zone as 1.

If it is judged that the water consumption timer time is greater than 3min and less than 10min, then the storage unit of the current time zone is set to 1, indicating that the first instruction of the user to use water is received, that is, a small amount of water by the user is detected.

S207, judging whether the time of the user's water usage timer is greater than or equal to a second preset time.

For example, the second preset time is 10 minutes, and it is judged whether the time recorded by the user's water time timer is greater than or equal to 10 minutes, if yes, then enter step S208, if no, then enter step S209.

S208. Set the storage unit of the current time zone as 2.

If the time recorded by the user's water consumption time timer is greater than or equal to the second preset time, for example, 10 minutes, the storage unit of the current time zone is set to 2, indicating that the user's second water consumption instruction is received, that is, a large amount of water consumption by the user is detected, and step S210 is entered.

S209. Set the storage unit of the current time zone to 0.

Obtained from steps S205 and S207, when the user's water usage timer is less than the first preset time, for example, 3 minutes, the storage unit of the current time zone is set to 0, indicating that there is no user's water usage.

S210, storing the data of the current time zone in the memory chip, and updating the data of the corresponding time zone in the last preset period.

S211, judging whether the time period of this time period is over.

For example, one week is taken as a preset cycle, if the time period is Sunday, judge whether it has reached 00:00 of Sunday, if yes, then enter step S212, otherwise return.

S212, updating the data of this time period to the time period corresponding to the last preset cycle, clearing the storage unit of the current time period, and enabling the memory function of the next time period.

The user turns on the intelligent memory function, and when the user's water consumption command is detected, the electric water heater is controlled to enter the corresponding heating mode, and the user's water consumption data is recorded and updated at the same time.

S103, control the electric water heater to enter the corresponding working mode according to the time zone corresponding to the current time and the water usage habit table of the last preset period of the current time, wherein the working modes include standard constant temperature heating mode, fast heating mode and constant temperature under E capacity increase heating mode.

If it is detected that the user’s water consumption command is received, the electric water heater will be controlled to enter the standard constant temperature heating mode, the fast heating mode or the constant temperature heating mode under E capacity increase according to the time zone corresponding to the current time and the water consumption habit table of the previous preset period of the current time . Among them, the standard constant temperature heating mode means that the set temperature is consistent with the temperature set by the user in this mode in the same time zone as the previous preset cycle, and the bathing temperature is consistent with the bathing temperature of the user in this mode in the same time zone as the previous preset cycle; The mode is to quickly heat the water to the set temperature, for example, the water is heated to 50°C within ten seconds for the user to use; the constant temperature heating mode under the E capacity increase means that the temperature is set to 75°C, and the bathing temperature is the same as the previous preset cycle In the same time zone, in this mode, the bathing temperature of the user when using water is the same.

In one embodiment of the present invention, when the user turns on the intelligent memory function, the system will check the user's water consumption in the last preset period in real time, and control the heating of the heating pipe of the electric water heater according to the water consumption in the last preset period or not. When the received water command is the first water command, the electric water heater is controlled to enter the standard constant temperature heating mode or the rapid heating mode; when the received water command is the second water command, the electric water heater is controlled to enter the constant temperature heating mode under E capacity increase. Specifically, if it is detected and calculated that the user’s water consumption time exceeds the first preset time, such as 3 minutes, that is, the user uses a small amount of water, that is, it is detected that the user’s water consumption status storage unit is set to 1, then the heating control module of the electric water heater controls the heating of the heating tube of the electric water heater. , the electric water heater enters the standard constant temperature heating mode, that is, the set temperature is the same as the previous preset cycle time zone. In addition, if the user needs to use a small amount of hot water in a short time, the control module 104 controls the electric water heater to enter the fast heating mode, for example, it can provide the user with hot water within ten seconds, which is convenient for the user. If it is detected that the user's water consumption time is greater than the second preset time, such as 10 minutes, that is, the user uses a large amount of water, that is, it is detected that the user's water consumption status storage unit is set to 2, then the heating control module of the electric water heater controls the heating tube of the electric water heater to heat. The electric water heater enters the constant temperature heating mode under E capacity expansion, that is, the set temperature is 75°C, and the bathing temperature is the same as the previous preset cycle. In this mode, the bathing temperature of the user's water is the same.

In another embodiment of the present invention, if it is detected that the user's water use instruction is not received in the current time zone of the current time period, it is detected that the user's water use status storage unit in the current time zone of the current time period is neither set to 1 nor to 2, or detect that the storage unit is set to 0, then detect the water use command of the user in the next time zone in the corresponding time zone within the preset period corresponding to the current time zone, specifically, when the water use command of the user in the next time zone is the first water use command , calculate the time to reach the corresponding set temperature of water, and when the time to reach the corresponding set temperature of water is less than or equal to the time interval from the current time to the starting point of the next time zone, control the electric water heater to enter the standard constant temperature heating mode or fast heating mode. For example, at 20:00 in the time zone 19:00～22:00, the user sets the temperature to 80°C, and the system detects the user’s instruction to use a small amount of water, and calculates that it takes one hour for the heating to reach the set temperature of 80°C, that is, it takes until 21:00 Only when the heating reaches 80°C, and the time interval from the starting time of heating 20:00 to the starting point 22:00 of the next time zone 22:00～00:00 is two hours, then the electric water heater is controlled to enter the standard constant temperature heating mode, that is The set temperature is the same as that of the previous preset cycle. In this mode, the temperature set by the user when using water is the same, and the bathing temperature is the same as that of the previous preset cycle. Hot water can be provided to users within seconds. When the water use command of the user in the next time zone is the second water use command, calculate the time to reach the corresponding water setting temperature, and when the time to reach the corresponding water setting temperature is less than or equal to the time interval from the current time to the starting point of the next time zone, control The electric water heater enters the constant temperature heating mode under E capacity increase. For example, at 20:00 in the time zone 19:00-22:00, the user sets the temperature to 80°C, and the system detects the user’s instruction to use a large amount of water, and calculates that it takes one hour for the heating to reach the set temperature of 80°C, that is, it takes until 21:00 The heating can reach 80°C, and the time interval from the starting time of heating at 20:00 to the starting point of 22:00 in the next time zone from 22:00 to 00:00 is two hours, then control the electric water heater to enter the constant temperature under E capacity increase Heating mode, that is, the temperature is set to 75°C, and the bathing temperature is the same as that of the previous preset cycle. In this mode, the bathing temperature of the user when using water is the same.

In another embodiment of the present invention, when it is detected that the user's water use status storage unit in the next time zone of the current time zone is set to 0, that is, the user's water use instruction is not detected, and when the user's water use order of the next time zone is not received , judge whether the user sets an appointment command in the next time zone, and if not, control the electric water heater to shut down.

It should be noted that, in the embodiment of the present invention, regardless of whether the system is turned on or off, if the user activates the intelligent memory function, the system will activate the intelligent memory and intelligent heating functions. The system can carry out intelligent memory only after the user turns on the intelligent memory function, but for the intelligent heating function, that is, to control the electric water heater to enter the standard constant temperature heating mode or the constant temperature heating mode or the fast heating mode under E capacity increase, no matter the user turns on the intelligent memory Whether or not, intelligent heating can be performed, that is, as long as the user's water consumption information in the corresponding time zone of the corresponding time period of the previous preset cycle is read, the system will automatically perform automatic heating according to the data stored in the previous preset cycle. If the user has turned on the smart memory function before, and then does not want to use the smart memory function, he can clear the smart memory data in the system through the factory setting function, and the smart memory function will not be turned on in the future, and the system will not perform smart heating. up.

To sum up, in one embodiment of the present invention, the flow chart of intelligent heating control of the heater is shown in Figure 3, including the following steps:

S301, start intelligent heating.

S302, read the current time zone of the current time period of the clock chip of the electric heater.

The current time zone is obtained by reading the information of the clock chip, for example, the time zone currently located at 19:00-22:00 on Saturday.

S303, reading the memory data of the time zone corresponding to the time period of the last preset period.

Read the memory data of the time zone corresponding to the time period of the last preset period, that is, determine whether the setting of the storage unit corresponding to the time zone is 0, 1 or 2. That is to say, it is detected whether the user's water consumption command is received in the corresponding time zone of the same time period of the last preset cycle and whether it is the first water consumption command or the second water consumption command.

S304, judging whether the current time zone has received the user's water use instruction.

That is, it is detected whether the storage unit data of the current time zone is set to 0, that is, whether the user’s water use instruction is received, and if yes, then enter step S309, and if no, then enter step S305.

S305, judging whether the current time zone receives the first water use instruction.

That is, it is judged whether the data of the storage unit of the current time zone is set to 1, that is, it is detected whether an instruction of a small amount of water is received from the user, if yes, then enter step S306, if no, then enter step S307 and step S309.

S306, turning on the standard constant temperature heating mode.

If it is detected that an instruction of a small amount of water is received from the user, the electric water heater is controlled to enter a standard constant temperature heating mode or a fast heating mode.

S307. Detect whether the current time zone receives a second water use instruction.

That is, it is judged whether the stored data of the current time zone is set to 2, that is, whether an instruction of the user to use a large amount of water is detected, if yes, then enter step S308, if no, then enter step S309.

S308, start the constant temperature heating mode under E capacity increase.

If the user's instruction to use a large amount of water is detected, the electric water heater is controlled to enter the constant temperature heating mode under E capacity increase.

S309, detecting whether a user's water use instruction is received in a time zone next to the current time zone.

That is to detect whether the data of the storage unit in the next time zone of the current time zone, such as the 19:00～22:00 time zone, that is, the 22:00～00:00 time zone is set to 0, if yes, then enter step S310, if not, then enter step S312.

S310, judging whether the user sets an appointment instruction in a time zone next to the current time zone.

If the user in the next time zone of the current time zone sets a reservation instruction or has a button operation, then return, if not, then enter step S311.

S311, controlling the shutdown of the electric water heater.

S312. Detect whether a time zone next to the current time zone receives the user's first water use instruction.

That is to detect whether the data of the storage unit in the next time zone of the current time zone such as 19:00～22:00 time zone is set to 1, if yes, then enter step S313, if not, then enter step S313 S315.

S313. Calculate the time to reach the corresponding set temperature of water.

S314, judging whether the calculated time to reach the corresponding set water temperature is greater than the time interval from the current moment to the starting point of the next time zone.

If the calculated time to reach the corresponding set water temperature is less than or equal to the time interval from the current time to the starting point of the next time zone, go to step S315, otherwise return.

S315, turning on the standard constant temperature heating mode.

When the time to reach the corresponding set water temperature is less than or equal to the time interval from the current time to the starting point of the next time zone, the electric water heater is controlled to enter the standard constant temperature heating mode or the fast heating mode.

S316. Detect whether a second water use instruction from the user is received in a time zone next to the current time zone.

That is to detect whether the data of the storage unit in the next time zone of the current time zone such as the 19:00～22:00 time zone is 22:00～00:00 time zone is set to 2, if yes, then enter step S317, if not, then return.

S317, calculating the time to reach the corresponding set temperature of water.

S318, judging whether the calculated time to reach the corresponding set water temperature is greater than the time interval from the current time to the starting point of the next time zone.

If the calculated time to reach the corresponding set temperature of water is less than or equal to the time interval from the current time to the starting point of the next time zone, then enter step S319, otherwise

S319, turning on the constant temperature heating mode under E capacity increase.

When the time to reach the corresponding set water temperature is less than or equal to the time interval from the current time to the starting point of the next time zone, the electric water heater is controlled to enter the constant temperature heating mode under E capacity increase.

To sum up, according to the control method of the electric water heater according to the embodiment of the present invention, the user's water usage habit is recorded through the intelligent memory function to form a water usage habit list, and the electric water heater is controlled to enter the corresponding mode for heating according to the water usage habit list. Intelligently control the work of the electric water heater according to the water consumption situation, which brings great convenience to people, satisfies people's living needs, and reduces energy consumption.

An electric water heater according to an embodiment of the second aspect of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 4 , the electric water heater in the embodiment of the present invention includes: a memory module 401 , a detection module 402 and a control module 403 .

Wherein, the memory module 401 is used to record the user's water consumption information within the preset period to generate the user's water usage habit table, wherein the water usage habit table records the user's water consumption, water use duration and time in multiple preset time zones within the preset period. Set temperature with water. For example, one week is regarded as a preset cycle, and each day in a week is divided into multiple preset time zones, such as eight time zones. The electric water heater in the embodiment of the present invention has an intelligent memory function. For example, within the time zone of 19:00-22:00 on Monday, the user uses water for 10 minutes, the water temperature is 60°C, and the water consumption is 25L, and such information is generated into the user’s water habit table, as shown in Table 1 shown.

The detection module 402 is used for detecting and judging the user's water use instruction. Specifically, the detection module 402 detects whether the water flow is greater than a preset flow threshold. For example, the preset flow threshold is set to 2L/min, and the detection module 402 detects whether the water flow is greater than or equal to 2L/min, if it is detected that the water flow is greater than or equal to 2L/min, or the water flow increases from 1.5L/min to 2L/min Or more than 2L/min, it is judged that a user's water consumption command may be received. When the detection module 402 detects that the water flow rate is less than 1.5L/min or the water flow rate drops from 2L/min or above to 1.5L/min, the user's water use instruction is not received.

The control module 403 is used to control the electric water heater to enter the corresponding working mode according to the received user's water usage command, the time zone corresponding to the current time, and the water usage habit table recorded by the memory module 401 of the previous preset period of the current time, wherein the working mode includes Standard constant temperature heating mode, fast heating mode and constant temperature heating mode under E capacity expansion. The standard constant temperature heating mode means that the set temperature is the same as the previous preset cycle. In this mode, the user’s water temperature is the same. The bathing temperature is the same as the previous preset cycle. In this mode, the bathing temperature of the user’s water is the same; That is to quickly heat the water to the set temperature, for example, heat the water to 50°C within ten seconds for the user to use; the constant temperature heating mode under the E capacity increase means that the temperature is set to 75°C, and the bathing temperature is the same as the previous preset cycle Time Zone In this mode, the bathing temperature of the user is consistent when using water.

In one embodiment of the present invention, the detection module 402 detects whether the water flow is greater than the preset flow threshold, and when the water flow is greater than the preset flow threshold, that is, when it is detected that the user may receive a water instruction, the control module 403 calculates the current time The water consumption time in the corresponding time zone. For example, in the time zone 19:00～22:00, the detection module 402 detects the user's water use instruction, and then the control module 403 calculates the time of the user's water use in this time zone while detecting and receiving the water use instruction,

In another embodiment of the present invention, the control module 403 is also used to determine the water use time, and when the water use time is greater than the first preset time and less than the second preset time, it is judged that the received user's water use instruction is the first water use instruction. Instructions, wherein the first preset time is less than the second preset time. Specifically, for example, assuming that the first preset time is 3 minutes, the second preset time is 10 minutes, and the water use time calculated by the control module 403 is T. At the same time, the control module 403 judges whether T is greater than 3 minutes and less than 10 minutes. If T is greater than 3 minutes and less than 10 minutes, the received user's water consumption command is the first water consumption command, and the first water consumption command may be a case of the user using a small amount of water. More specifically, in terms of data setting, the user's water consumption status storage unit can be set to 1 to indicate that the user's first water consumption instruction is received.

In another embodiment of the present invention, the control module 403 judges that the received user's water use command is the second water use command when the water use time is greater than or equal to the second preset time, and when the water use time is less than or equal to the first preset time , judging that the user's water use instruction has not been received. Specifically, for example, assuming that the first preset time is 3 minutes, the second preset time is 10 minutes, and the water use time calculated by the control module 403 is T. If the control module 403 judges that T is greater than or equal to 10 minutes, then it is determined that the received user's water consumption command is the second water consumption command, and the second water consumption command may be a case of the user using a large amount of water. If the control module 403 judges that T is less than or equal to 3 minutes, it judges that the user's water use instruction has not been received. More specifically, in terms of data setting, the user's water use status storage unit can be set to 2 to indicate that the user's second water use instruction has been received, and the user's water use status storage unit to be set to 0 to indicate that the user's water use order has not been received. .

In one embodiment of the present invention, when the received water use command is the first water use command, the control module 403 controls the electric water heater to enter the standard constant temperature heating mode or the fast heating mode; when the received water use command is the second water use command, the control module 403 Control the electric water heater to enter the constant temperature heating mode under E capacity increase. Specifically, if the control module 403 calculates that the user's water use time exceeds the first preset time, such as 3 minutes, that is, the user uses a small amount of water, that is, it is detected that the user's water use status storage unit is set to 1, then the control module 403 controls the heating pipe of the electric water heater to heat , the electric water heater enters the standard constant temperature heating mode, that is, the set temperature is the same as the previous preset cycle time zone. In addition, if the user needs to use a small amount of hot water in a short time, the control module 104 controls the electric water heater to enter the fast heating mode, for example, it can provide the user with hot water within ten seconds, which is convenient for the user. If the control module 403 calculates that the user's water consumption time is greater than the second preset time, such as 10 minutes, that is, the user uses a large amount of water, that is, it is detected that the user's water consumption status storage unit is set to 2, then the heating element control circuit controls the heating tube of the electric water heater to heat, Control the electric water heater to enter the constant temperature heating mode under E capacity increase, that is, the set temperature is 75°C, and the bathing temperature is the same as the last preset cycle. In this mode, the bathing temperature of the user's water is the same.

As shown in Figure 5, the power supply circuit of the electric water heater of the embodiment of the present invention supplies power for the electric water heater to ensure the operation of the electric water heater. The current time zone information of the current time period is read through the clock chip circuit, and the control module 403 generates according to the information generated by the memory module 401. The user's water consumption command detected by the water habit table and the detection module 402 controls the electric water heater to enter the corresponding heating mode for heating, and the control module 403 sends commands to the heating element control circuit, and the heating element control circuit controls the heating element for heating. In addition, the water volume and temperature information in the electric water heater can be displayed through the display output circuit, which is more intuitive. The user can also input instructions through the key input circuit to perform corresponding operations.

According to the electric water heater of the embodiment of the present invention, the detection module detects and judges the water use command, and the control module controls the electric water heater to enter the corresponding heating mode according to the water usage table recorded by the memory module, so as to avoid the electric water heater being in the heating state all the time and reduce energy consumption. In addition, the work of the electric water heater can be intelligently controlled according to the user's specific needs, which provides convenience for the user.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with an instruction execution system, device, or device (such as a computer-based system, a system including a processor, or other systems that can fetch instructions from an instruction execution system, device, or device and execute instructions), or in conjunction with such an instruction execution system, device or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. processing to obtain the program electronically and store it in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by 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 known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. A control method for an electric water heater, characterized in that: comprising the steps: Record the user's water consumption information within the preset period to generate the user's water use habit table, wherein the water use habit table records the user's water consumption and water use duration in multiple preset time zones within the preset period and set the temperature with water; Detecting whether the user's water use instruction is received, wherein the detection of whether the user's water use instruction is received further includes: Detect whether the water flow is greater than or equal to the preset flow threshold; If yes, calculate the water use time in the time zone corresponding to the current time; judging whether the water use time is greater than a first preset time and less than a second preset time, wherein the first preset time is less than the second preset time; If yes, it is judged that the user's first water use instruction is received; If the water use time is greater than or equal to the second preset time, it is determined that a second water use instruction from the user is received; If the water use time is less than or equal to the first preset time, it is judged that the user's water use instruction has not been received; Control the electric water heater to enter a corresponding working mode according to the water-water command, the time zone corresponding to the current time, and the water-water habit table of the last preset cycle of the current time, wherein the working mode includes a standard constant temperature heating mode , fast heating mode and constant temperature heating mode under E capacity increase; Wherein, when the first water use instruction is received, the electric water heater is controlled to enter the standard constant temperature heating mode or the rapid heating mode; When receiving the second water use instruction, control the electric water heater to enter the constant temperature heating mode under the E capacity increase. 2. The control method of the electric water heater according to claim 1, characterized in that: said controlling the electric water heater to enter a corresponding working mode further comprises: Detecting the water use instruction of the user in the next time zone of the corresponding time zone within the preset period corresponding to the current time zone; When the water use command of the user in the next time zone is the first water use command, calculate the time to reach the corresponding water use setting temperature, and when the time to reach the corresponding water use setting temperature is less than or equal to the current time to the next time zone During the time interval of the starting point, control the electric water heater to enter the standard constant temperature heating mode or the rapid heating mode; When the water use command of the user in the next time zone is the second water use command, calculate the time to reach the corresponding water setting temperature, and when the time to reach the corresponding water setting temperature is less than or equal to the current time to the next time zone At the time interval of the starting point, the electric water heater is controlled to enter the constant temperature heating mode under the E capacity increase. 3. The control method of an electric water heater according to claim 2, further comprising: When the water use instruction of the user in the next time zone is not received, it is judged whether the user sets an appointment instruction in the next time zone; If not, control the electric water heater to shut down. 4. An electric water heater, characterized in that: comprising: A memory module, configured to record the user's water consumption information within a preset period to generate the user's water usage habit table, wherein the water usage habit table records the user's multiple preset time zones within the preset period Water consumption, water duration and water setting temperature; The detection module is used to detect and judge the user's water use instruction, and further includes: detecting whether the water flow is greater than the preset flow threshold, and when the water flow is greater than the preset flow threshold, the control module calculates the time corresponding to the current time. The water use time in the time zone, and when the water use time is greater than the first preset time and less than the second preset time, judge the received first water use instruction from the user, wherein the first preset time is less than For the second preset time, the control module judges the second water use instruction received from the user when the water use time is greater than or equal to the second preset time, and when the water use time is less than or equal to the judging that the user's water use instruction has not been received at the first preset time; A control module, configured to control the electric water heater to enter a corresponding working mode according to the received user's water use instruction, the time zone corresponding to the current time, and the water use habit table of the last preset period of the current time, wherein, The working modes include standard constant temperature heating mode, fast heating mode and constant temperature heating mode under E capacity increase, wherein, when receiving the first water use command, the electric water heater is controlled to enter the standard constant temperature heating mode or fast heating mode. In the heating mode, when the second water use instruction is received, the electric water heater is controlled to enter the constant temperature heating mode under the E capacity increase.