Control method of an instant water heating device and instant water heating device

Abstract

The application relates to a control method of an instant heating type drinking water device, which comprises the following steps: a control module sends a water taking instruction to an operation module, the control module acquires the cold and hot states of an instant heating body and water stored in the instant heating body; when the instant heating body is in a hot state and the water stored in the instant heating body is in a cold state, the instant heating body is controlled to enter a first preheating state, and the instant heating body is operated in a first power range; when the instant heating body and the water stored in the instant heating body are in a hot state or a cold state at the same time, the instant heating body is controlled to enter a second preheating state, and the instant heating body is operated in a second power range; the minimum value of the second power range is greater than the maximum value of the first power range. In the application, different preheating modes are adopted according to the different cold and hot states of the instant heating body and the water stored in the instant heating body, so that the water spraying phenomenon is avoided, hot water with a user required temperature is quickly obtained, and the water taking experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drinking water, in particular to a control method of an instant heating type drinking water device and the instant heating type drinking water device. BACKGROUND

[0002] At present, the instant drinking machine and the instant heating type water heating and purifying integrated machine on the market generally dispense water immediately after the user clicks the water taking button. When the user takes boiled water after a long standby time, the first 300ml of boiled water in the water cup is relatively low in temperature. The main reason is that the machine is in standby for a long time, the instant heating body and the water stored in the instant heating body are in cold state. At this time, directly taking water will first draw out the water in the instant heating body. Even if the instant heating body is enabled to heat, since the instant heating body is in cold state, most of the heat is absorbed by the instant heating body. Under the premise of fast water dispensing speed, the water dispensing temperature is relatively low and cannot reach the requirement of 90℃ water dispensing. In order to solve this problem, the prior art generally adopts preheating or sets a heat preservation tank to maintain the temperature of the water stored in the instant heating body. However, in the existing preheating process, the water dispensing assembly may appear air jet phenomenon when rapidly increasing the water dispensing temperature due to many instant heating environment working conditions, which reduces the user's water taking experience. SUMMARY

[0003] In order to solve the above problems, the present application provides a control method of an instant heating type drinking water device and the instant heating type drinking water device. According to the different cold and hot states of the instant heating body and the water stored in the instant heating body, different preheating modes are adopted to avoid the air jet phenomenon of water dispensing, so as to quickly obtain hot water of the user's required temperature and improve the user's water taking experience.

[0004] The technical scheme of the present application is as follows:

[0005] A control method of an instant heating type drinking water device, comprising the following steps:

[0006] The operation module sends a water taking instruction to the control module, and the control module acquires the cold and hot states of the instant heating body and the water stored in the instant heating body;

[0007] When the instant heating body is in hot state and the water stored in the instant heating body is in cold state, the instant heating body is controlled to enter a first preheating state and the instant heating body is operated in a first power range. When the instant heating body and the water stored in the instant heating body are in hot state or cold state at the same time, the instant heating body is controlled to enter a second preheating state and the instant heating body is operated in a second power range.

[0008] The minimum value of the second power range is greater than the maximum value of the first power range.

[0009] In an embodiment of the present application, the process of acquiring the cold and hot states of the instant heating body and the water stored in the instant heating body is specifically as follows:

[0010] The control module acquires the outlet temperature of the instant heater;

[0011] When the outlet temperature is greater than or equal to a first threshold value, the instant heater body is in a hot state, and the water stored in the instant heater is in a cold state, and the instant heater is controlled to enter a first preheating state; when the outlet temperature is less than the first threshold value, the instant heater body and the water stored in the instant heater are in a hot state or a cold state, and the instant heater is controlled to enter a second preheating state.

[0012] In an embodiment of the present application, the second preheating state includes a first preheating sub-state and a second preheating sub-state, when the outlet temperature is less than the first threshold value and greater than or equal to a preset second threshold value, the instant heater enters the first preheating sub-state, and when the outlet temperature is less than the second threshold value, the instant heater enters the second preheating sub-state.

[0013] In an embodiment of the present application, in the first preheating sub-state, the instant heater is operated in a third power range, and in the second preheating sub-state, the instant heater is operated in a fourth power range, the third power range and the fourth power range are both within the second power range, and the maximum value of the third power range is less than the minimum value of the fourth power range.

[0014] In an embodiment of the present application, in the second preheating sub-state, the control method further includes: when the outlet temperature is less than the second threshold value, determining whether a time difference between a time point when the last water taking stops and a current time point is greater than a preset third threshold value, if yes, controlling the instant heater to operate in the fourth power range, otherwise, continuing to determine whether the time difference is greater than a preset fourth threshold value, if yes, controlling the instant heater to operate in the third power range, otherwise, controlling the instant heater to operate in the first power range.

[0015] In an embodiment of the present application, the control method further includes the step of: acquiring the inlet temperature of the instant heater, and determining whether a difference between the outlet temperature and the inlet temperature is less than a fifth threshold value, if yes, the instant heater enters the second preheating sub-state.

[0016] In an embodiment of the present application, the control method further includes the step of: after the preheating process starts, a display module displays an outlet temperature value, the outlet temperature value is displayed in a gradient increasing manner from an initial temperature value, when the outlet temperature reaches a water taking temperature selected by a user, the outlet temperature value is displayed as the water taking temperature, a water pump starts to discharge water, and the operating power of the water pump and the instant heater is adjusted.

[0017] In an embodiment of the present application, the control method further includes:

[0018] When the outlet temperature reaches the water taking temperature, the running power of the water pump is recorded as the running power of the water pump in the next water taking process after the outlet temperature is maintained at the water taking temperature for a first time length.

[0019] In an embodiment of the present application, in the first preheating state, if it is detected that the outlet temperature is greater than the sixth threshold value, the preheating process is stopped, and the instant heating body is turned off.

[0020] The present application also provides an instant heating type water drinking device for executing the control method of the instant heating type water drinking device, comprising:

[0021] A water path module comprising a water inlet assembly, a water outlet assembly, an instant heating body connected between the water inlet assembly and the water outlet assembly, and a water pump arranged between the instant heating body and the water inlet assembly;

[0022] A control module electrically connected to the instant heating body and the water pump for adjusting the running power of the instant heating body and the water pump;

[0023] A display module electrically connected to the control module for displaying the outlet temperature value;

[0024] An operation module electrically connected to the control module for sending instructions to the control module;

[0025] A detection module for detecting the cold and hot state of the instant heating body and the water stored in the instant heating body.

[0026] The technical effects of the present application are as follows:

[0027] 1. The present application obtains the cold and hot state of the instant heating body and the water stored in the instant heating body through the detection module, determines the preheating state required by the instant heating type water drinking device according to the cold and hot state, adjusts the running power of the instant heating body and the water pump in different preheating states through the control module, to ensure that there is no air jet phenomenon when the water outlet assembly is discharging water while quickly raising the outlet temperature, and to improve the reliability of the instant heating type water drinking device.

[0028] 2. In the instant heating type water drinking device in the instant preheating state, the preheating mode is determined by obtaining the cold and hot state of the instant heating body and the water stored in the instant heating body under different working conditions, the excess heat is fully utilized when the heat of the instant heating body is high, the outlet temperature is met, the energy consumption of the whole machine is reduced, and air jet of the water outlet assembly is avoided, and when the heat of the instant heating body is reduced, the heating power of the instant heating body is increased to maintain the outlet temperature of the water outlet assembly and improve the water taking experience of the user.

[0029] 3、In the instant preheating state, since preheating needs a certain duration, the actual preheating temperature is displayed in a gradient increasing manner by the display module in the preheating stage, the increasing speed is matched with different preheating time in the instant preheating state, and the user-selected water taking temperature is displayed after the increasing is stopped, so that the use experience of the user is improved.

[0030] 4、In order to quickly increase the temperature of the water outlet, the running power of the water pump in the current water taking process is recorded as a reference value for the next water taking process after the preheating is completed, that is, the water pump power when the water outlet temperature is stable is recorded, so that the running power of the water pump is calibrated in the subsequent water taking process, and the conditions that the water outlet assembly sprays or cannot reach the water taking temperature are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed by the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0032] Figure 1 A specific step block diagram of the control method of the instant drinking water device.

[0033] Figure 2 A waterway connection diagram of the waterway module in the present application.

[0034] Figure 3 A flow chart of the preheating and water taking stage control method in the present application.

[0035] Figure 4 A flow chart of the preheating and water taking stage control method in the present application.

[0036] Reference signs:

[0037] 1, water inlet valve; 2, waste water valve; 3, booster pump; 4, water pump; 5, water outlet faucet; 6, water outlet valve; 7, flow meter; 8, flow limiting valve; 9, composite filter element. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] The application provides a control method of an instant water heating device, which is applied to instant water heating devices, including but not limited to instant drinking machines, instant water heating and purifying integrated machines and instant water purifying taps.

[0040] The application provides a control method of an instant water heating device, which is applied to instant water heating devices, including but not limited to instant drinking machines, instant water heating and purifying integrated machines and instant water purifying taps. Figure 1 The control method comprises the following steps:

[0041] The operation module sends a water taking instruction to the control module, and the control module acquires the cold and hot states of the instant water heating body and the water stored in the instant water heating body.

[0042] When the instant water heating body is in a hot state and the water stored in the instant water heating body is in a cold state, the instant water heating body is controlled to enter a first preheating state, and the instant water heating body is operated at a first power range; when the instant water heating body and the water stored in the instant water heating body are in a hot state or a cold state at the same time, the instant water heating body is controlled to enter a second preheating state, and the instant water heating body is operated at a second power range; the minimum value of the second power range is greater than the maximum value of the first power range.

[0043] In the above, the real-time cold and hot states of the instant water heating body and the water stored in the instant water heating body are detected, so that the instant water heating body enters different preheating states, and the operation power of the instant water heating body and the water pump is adjusted in real time by the control module in different preheating states, so as to ensure that there is no air jet phenomenon when the water outlet assembly discharges water and the water temperature is quickly raised.

[0044] Embodiment 1

[0045] The application provides a control method of an instant water heating device, which is applied to instant water heating devices, including but not limited to instant drinking machines, instant water heating and purifying integrated machines and instant water purifying taps.

[0046] 1. Power-on flushing stage

[0047] After detecting that the instant water heating device is powered on, the control module opens the water inlet valve 1, the waste water valve 2 and the booster pump 3, and keeps the water outlet valve 6 closed. After continuously flushing the filter assembly for a period of time, for example, after 30 seconds, it is judged whether a water taking instruction is received. If yes, it is judged whether to enter a preheating process according to the water taking temperature. When taking cold water, the water outlet valve 6 is opened, the water pump 4 and the instant water heating body are not worked, and the water outlet tap 5 in the water outlet assembly discharges cold water. When taking hot water, the preheating stage is entered.

[0048] The above flushing process is suitable for instant water heating devices with water purifying function. In devices without water purifying function, the flushing process is not set, and the step of receiving an instruction after power-on is directly started.

[0049] 2. Water outlet preheating stage

[0050] As shown in Figure 2 and Figure 3As shown, the control module receives the water taking instruction, the control module obtains the cold and hot state of the instant heating body and the water stored in the instant heating body, controls the instant heating body to operate in different power ranges according to the cold and hot state, and the preheating process ends after a first duration, at which time the water pump 4 is started, and the operating power of the water pump 4 and the instant heating body is determined according to the water taking temperature, and the water outlet valve 6 in the water outlet assembly is controlled to be opened, and the water outlet faucet 5 starts to supply water.

[0051] In the above, in the specific embodiment of the present embodiment, the first duration time in the instant preheating state is a preset constant value, which is set to 2s in the present embodiment, so as to reduce the waiting time of the user and improve the water taking experience of the user. In the present embodiment, different preheating states are set to ensure that the water outlet faucet 5 can quickly and stably supply water at the demand of the user.

[0052] In one specific embodiment of the present embodiment, after entering the preheating process, when it is detected that the instant heating body is in a hot state and the water stored in the instant heating body is in a cold state, the instant heating body is controlled to enter a first preheating state and operate in a first power range; when the instant heating body and the water stored in the instant heating body are in a hot state or a cold state at the same time, the instant heating body is controlled to enter a second preheating state and operate in a second power range, wherein the maximum value of the first power range is less than the minimum value of the second power range, and the first power range and the second power range can be specific power values within a certain range, or can be multiple gears with determined power values, for example, the first power range is a low gear preset in the control module, and the second power module is a high gear preset in the control module.

[0053] In the above, the operating power of the instant heating body is determined by the cold and hot state of the instant heating body and the water stored in the instant heating body. When the instant heating body is in a hot state and the water stored in the instant heating body is in a cold state, it indicates that the user has just taken water, and the temperature of the instant heating body has not been absorbed by the water stored in the instant heating body. At this time, the heat of the instant heating body is high, and a lower range or gear power is used to prevent the water outlet temperature from rising rapidly to cause the jetting situation. At the same time, the first temperature sensor arranged at the water outlet of the instant heating body is used to detect the water outlet temperature in real time to determine whether it is greater than the sixth threshold value to prevent the water outlet temperature from being too high to protect the instant heating body and the water outlet assembly. When the instant heating body and the water stored in the instant heating body are in a hot state at the same time, it indicates that a period of time has passed after the user has just taken water, for example, 3 minutes after taking water, or the user has taken low-temperature hot water. When the instant heating body and the water stored in the instant heating body are in a cold and hot state at the same time, it indicates that the instant hot water device has been in standby for a long time after the user has taken water. The instant heating body in these two states generally does not have the risk of temperature rise and jetting. At this time, the operating power of the instant heating body is determined according to the water taking temperature and the cold and hot state of the instant heating body, wherein the operating power required when the instant heating body is in a cold state is higher than that when the instant heating body is in a hot state, so as to ensure that the water outlet assembly can stably and quickly provide hot water with the required temperature for the user.

[0054] In the embodiment, the cold and hot state judgment method of the instant heating body and the water stored in the instant heating body is specifically:

[0055] The control module obtains the outlet water temperature of the instant heating body through the first temperature sensor.

[0056] When the outlet water temperature is greater than or equal to the first threshold value, the instant heating body is in a hot state, and the water stored in the instant heating body is in a cold state, and the instant heating body is controlled to enter a first preheating state; when the outlet water temperature is less than the first threshold value, the instant heating body and the water stored in the instant heating body are in a hot state or a cold state at the same time, and the instant heating body is controlled to enter a second preheating state.

[0057] In one specific implementation of the embodiment, the first threshold value is set to 90℃. It should be noted that this value is only one preferred way in the embodiment, and the size of the first threshold value is not specifically limited in the embodiment, and can be changed according to actual conditions.

[0058] In the embodiment, after the outlet water preheating stage starts, the following steps are further included:

[0059] The display module synchronously displays the outlet water temperature value, and the outlet water temperature value is displayed in a gradient increasing manner from an initial temperature value. When the outlet water temperature reaches the water taking temperature selected by the user, the outlet water temperature value is synchronously displayed as the water taking temperature, the water pump starts to discharge water, and the operating power of the water pump and the instant heating body is adjusted.

[0060] In the above, the initial temperature value is the current room temperature collected by the second temperature sensor or the outlet water temperature of the water inlet assembly. The outlet water temperature value is displayed in a gradient increasing manner, which improves the visual experience of the user and explicitly displays the preheating process. In order to ensure the consistency of the user experience, the increasing speed of the same water taking temperature under different preheating modes remains the same, and the increasing speed slightly decreases with the increase of the water taking temperature under different water taking temperatures, which reflects the contrast and improves the user experience.

[0061] 3. Water discharging stage:

[0062] After the preheating process ends, referring to Figure 2 , the water valve 6 is opened, the operating power of the water pump 4 and the instant heating body is determined according to the preheating state and the specific value of the water taking temperature, the water faucet 5 continuously discharges water until the user stops taking water, the control module receives the water stopping instruction, and the water valve 6, the water pump 4 and the instant heating body are closed, and the instant hot water device enters a standby state.

[0063] In the embodiment, when the outlet temperature reaches the water taking temperature, the water outlet faucet 5 starts to take water, and after the outlet temperature is maintained at the water taking temperature for a second time length, the running power of the water pump 4 is recorded as a reference value of the running power of the water pump 4 in the next water taking process. The second time length is a preset fixed value, and in the embodiment, the second time length is 5 seconds. It is considered that the running power of the water pump 4 in the water taking process can make the water outlet faucet 5 continuously take water at a stable temperature and speed to meet the user's demand. At this time, the running power of the water pump 4 is recorded as a reference value P1. In the next time when hot water of the same temperature is taken, P1 is given as the running power of the water pump 4, or when hot water of different temperature is taken, P1 is used as a reference value to quickly and accurately adjust the running power of the water pump 4.

[0064] The embodiment also provides a instant water heating device, and the control method in the above embodiment is applied to the instant water heating device. The instant water heating device specifically comprises:

[0065] The waterway module, referring to Figure 2 comprises a water inlet assembly, a water outlet assembly, a water pump 4, a flow meter 7, a flow limiting valve 8 and an instant heating body arranged between the water inlet assembly and the water outlet faucet 5. The instant heating body is integrated with the water outlet faucet 5. The flow meter 7 is used to detect the outlet flow of hot water. The flow limiting valve 8 is used to limit the inlet flow to prevent the flow from being too large so that the instant heating body cannot be quickly heated.

[0066] In a specific implementation manner of the embodiment, the water inlet assembly comprises a water inlet valve 1 and a filter assembly, the filter assembly comprises a composite filter element 9, a booster pump 3 and a waste water valve 2, the water outlet assembly comprises a water outlet faucet 5 and a water outlet valve 6 connected between the water outlet faucet 5 and the water inlet assembly, and the water outlet valve 6 is in parallel connection with the water pump 4, the flow meter 7 and the flow limiting valve 8.

[0067] The display module is electrically connected to the control module and is used to display the outlet temperature value.

[0068] In the embodiment, the display module is a faucet digital tube, which is used to dynamically display the outlet temperature value in a gradient increasing manner in the preheating process and continuously display the water taking temperature value for the user in the water taking process, so as to improve the user experience.

[0069] The operation module is electrically connected to the control module and is used to send instructions to the control module.

[0070] The operation in the embodiment is mainly used to send water taking and water stopping instructions, and corresponding instructions are sent to the control module according to the user's operation. Meanwhile, the operation module can send other instructions, which have no obvious relationship with the scheme protected in the embodiment, and thus will not be described herein.

[0071] The detection module is electrically connected to the control module and is used to detect and transmit signals of the cold and hot states of the instant heating body and the water stored in the instant heating body.

[0072] The detection module comprises a first temperature sensor for detecting the temperature of the outlet of the instant heating body, a second temperature sensor for detecting the current room temperature or the outlet temperature of the water inlet assembly, and a third temperature sensor for detecting the inlet temperature of the instant heating body.

[0073] The control module is electrically connected to the instant heating body and the water pump 4, and is used for adjusting the operating power of the instant heating body and the water pump 4.

[0074] The control module in the embodiment is mainly used for receiving the instructions of the operation module, detecting the state of the water channel module, controlling the working state of each device in the water channel module and the display module, controlling the water outlet assembly to quickly and stably outlet water, and meeting various needs of users.

[0075] Embodiment 2

[0076] The difference between the embodiment and the embodiment 1 is that after the instant heating body enters the instant preheating state in the water outlet preheating stage, the outlet temperature of the instant heating body entering the second preheating state is judged again, and the outlet temperature of the instant heating body entering the second preheating state is judged again. Figure 3 , specifically:

[0077] The second preheating state comprises a first preheating sub-state and a second preheating sub-state. When the outlet temperature is less than the first threshold value and greater than or equal to the preset second threshold value, the instant heating body enters the first preheating sub-state. When the outlet temperature is less than the second threshold value, the instant heating body enters the second preheating sub-state. The operating power of the instant heating body in the first preheating sub-state is less than that in the second preheating sub-state.

[0078] The first preheating sub-state corresponds to the case that the instant heating body and the water storage inside the instant heating body are both in a hot state, and the second preheating sub-state corresponds to the case that the instant heating body and the water storage inside the instant heating body are both in a cold state. In the first preheating sub-state, the instant heating body is operated in a third power range, and in the second preheating sub-state, the instant heating body is operated in a fourth power range. The third power range and the fourth power range are both within the second power range, and the maximum value of the third power range is less than the minimum value of the fourth power range.

[0079] In one specific embodiment of the embodiment, the first power range, the third power range and the fourth power range correspond to the low, medium and high gears of the power gear, which further ensures that the water outlet assembly can quickly increase the outlet water temperature without air injection, improves the reliability of the whole machine, and ensures that the user can quickly obtain hot water meeting the temperature requirement when the instant heating body is in different states.

[0080] Specifically, referring to Figure 3For example, the user selects the water temperature of 95 DEG C, the first threshold value in this example is 90 DEG C, and the second threshold value is 38 DEG C. When the outlet temperature is greater than or equal to 90 DEG C, the heating body is in a hot state, and the water in the heating body is in a cold state, the first preheating state is entered, and the heating efficiency is high. When the user takes hot water, the faucet digital tube starts to display the outlet temperature value from the normal water temperature (i.e., the initial temperature value) and increases. At this time, the preheating power of the heating body is set to a low preheating gear. If the preheating power is high, the outlet temperature may rapidly increase, which may cause air injection. If the outlet temperature is too high during the preheating process, the power of the heating body is turned off to stop preheating and protect the heating body. When the outlet temperature value displayed by the faucet digital tube is 95 DEG C, the power of the water pump and the heating body is adjusted, and the outlet stage is entered.

[0081] When the outlet temperature is less than 90 DEG C and greater than or equal to 38 DEG C, it is indicated that the user has just taken water or the user has taken low-temperature hot water. The heating body and the water in the heating body are in a hot state. The heating body is controlled to enter the first preheating substate. At this time, the heating efficiency is high. When the user takes boiling water, the faucet digital tube starts to display the outlet temperature value from the normal water temperature and increases. At this time, the preheating power of the heating body is set to a middle preheating gear. When the outlet temperature value displayed by the faucet digital tube is 95 DEG C, the power of the water pump and the heating body is adjusted, and the outlet stage is entered.

[0082] When the outlet temperature is less than 38 DEG C, it is determined that the heating body and the water in the heating body are in a cold state. The heating body is controlled to enter the second preheating substate. At this time, the heating efficiency is low. When the user takes boiling water, the faucet digital tube starts to display the outlet temperature value from the normal water temperature and increases. At this time, the preheating power of the heating body is set to a high preheating gear. When the outlet temperature value displayed by the faucet digital tube is 95 DEG C, the power of the water pump and the heating body is adjusted, and the outlet stage is entered.

[0083] In a specific embodiment of the present embodiment, when it is detected that the outlet temperature is less than the second threshold value, it is determined whether a time difference between a time point when the outlet is last stopped and a current time point is greater than a third threshold value. If yes, the heating body is controlled to operate in a fourth power range. If no, it is determined whether the time difference is greater than a fourth threshold value. If yes, the heating body is controlled to operate in a third power range. If no, the heating body is controlled to operate in a first power range.

[0084] The third threshold value and the fourth threshold value in the above are time type threshold values. Specifically, the third threshold value can be set to 20 minutes, and the fourth threshold value can be set to 10 minutes.

[0085] In the present embodiment, a second time judgment is added to the judgment of the outlet temperature. When the outlet temperature is less than 38 DEG C, the cold and hot states of the heating body and the water in the heating body are easily deviated only by the outlet temperature. Referring to the above description, the second time judgment is added to the judgment of the outlet temperature. Figure 4At this time, the cold and hot state can be determined according to a time difference between a time point at which the water taking is stopped in the previous water taking process and a current time point, if the time difference is less than 10 minutes, it is judged that the instant heater body is in a hot state and the water stored in the instant heater is in a cold state, the instant heater is operated at a low power, if the time difference is between 10-20 minutes, it is judged that the instant heater body is in a warm state and the water stored in the instant heater is in a warm state, the instant heater is operated at a medium power, and if the time difference is more than 20 minutes, it is judged that the instant heater body is in a cold state and the water stored in the instant heater is in a cold state, the instant heater is operated at a high power, that is, according to the outlet temperature and the time after the water is taken, the reliability of judging the cold and hot state of the instant heater is improved, and the preheating power is further optimized or selected, so that the temperature of the first cup of water is improved.

[0086] In the embodiment, the control method further comprises: acquiring the water inlet temperature of the instant heater by the third temperature sensor, and judging whether the difference between the outlet temperature of the instant heater and the water inlet temperature is less than a fifth threshold value, and if yes, the instant heater enters a second preheating sub-state. In the embodiment, when the outlet temperature of the instant heater and the water inlet temperature are very close, for example, the fifth threshold value is set to 3℃, the instant heater body and the water stored in the instant heater are both in a cold state, at this time, the second preheating sub-state is entered, and the instant heater is controlled to operate at a fourth power range, that is, the instant heater is operated at a high power.

[0087] In the embodiment, other control steps and structures are basically the same as those in the embodiment 1, and will not be described here.

[0088] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connect", "fix" and other terms should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0089] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method of an instant water heating device, characterized by, The method comprises the following steps: The operation module sends a water taking instruction to the control module, and the control module acquires the cold and hot states of the instant heating body and the water stored in the instant heating body; When the instant heating body is in a hot state and the water stored in the instant heating body is in a cold state, the instant heating body is controlled to enter a first preheating state and operate in a first power range; when the instant heating body and the water stored in the instant heating body are in a hot state or a cold state, the instant heating body is controlled to enter a second preheating state and operate in a second power range; The minimum value of the second power range is greater than the maximum value of the first power range; The second preheating state comprises a first preheating substate and a second preheating substate; when the outlet water temperature of the instant heating body is less than a first threshold value and greater than or equal to a preset second threshold value, the instant heating body enters the first preheating substate; when the outlet water temperature of the instant heating body is less than the second threshold value, the instant heating body enters the second preheating substate; In the first preheating substate, the instant heating body operates in a third power range, and in the second preheating substate, the instant heating body operates in a fourth power range; the third power range and the fourth power range are both within the second power range, and the maximum value of the third power range is less than the minimum value of the fourth power range.

2. The control method of the instant hot water drinking device according to claim 1, characterized by, The process of acquiring the cold and hot states of the instant heating body and the water stored in the instant heating body comprises the following steps: The control module acquires the outlet water temperature of the instant heating body; When the outlet water temperature is greater than or equal to a first threshold value, the instant heating body is in a hot state and the water stored in the instant heating body is in a cold state, and the instant heating body is controlled to enter a first preheating state; when the outlet water temperature is less than the first threshold value, the instant heating body and the water stored in the instant heating body are in a hot state or a cold state, and the instant heating body is controlled to enter a second preheating state.

3. The control method of the instant hot water drinking device according to claim 1, wherein In the second preheating substate, the control method further comprises: when the outlet water temperature is less than a second threshold value, judging whether a time difference between a time point when the previous water taking stops and a current time point is greater than a preset third threshold value; if yes, controlling the instant heating body to operate in a fourth power range; if not, continuing to judge whether the time difference is greater than a preset fourth threshold value; if yes, controlling the instant heating body to operate in a third power range; if not, controlling the instant heating body to operate in a first power range.

4. The control method of the instant hot water drinking device according to claim 1, wherein The control method further comprises the step of: acquiring the inlet water temperature of the instant heating body and judging whether a difference between the outlet water temperature and the inlet water temperature is less than a fifth threshold value; if yes, the instant heating body enters a second preheating substate.

5. The control method of the instant hot water drinking device according to claim 1, wherein The control method further comprises the step of: after the preheating process starts, a display module displays an outlet water temperature value; the outlet water temperature value is displayed in a gradient increasing manner from an initial temperature value; when the outlet water temperature reaches a water taking temperature selected by a user, the outlet water temperature value is displayed as the water taking temperature, the water pump starts to discharge water, and the operating power of the water pump and the instant heating body is adjusted.

6. The control method of the instant hot water drinking device according to claim 5, wherein The control method further comprises: When the outlet water temperature reaches the water taking temperature, the outlet water temperature is maintained at the water taking temperature for a first time length, and then the operating power of the water pump is recorded as the operating power of the water pump in the next water taking process.

7. The control method of the instant hot water drinking device according to claim 1, wherein In the first preheating state, if the outlet water temperature is greater than a sixth threshold value, the preheating process is stopped and the instant heater is turned off.

8. A control method of an instant hot water drinking device for executing the control method of the instant hot water drinking device according to any one of claims 1 to 7, characterized by, The application comprises: a water circuit module, comprising a water inlet assembly, a water outlet assembly, an instant heater connected between the water inlet assembly and the water outlet assembly, and a water pump arranged between the instant heater and the water inlet assembly; a control module electrically connected to the instant heater and the water pump, for adjusting the operating power of the instant heater and the water pump; a display module electrically connected to the control module, for displaying the outlet water temperature value; an operation module electrically connected to the control module, for sending instructions to the control module; a detection module for detecting the cold and hot states of the instant heater body and the water stored in the instant heater.

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