A control method of an instant water heating device and an instant water heating device

Abstract

The application relates to a control method of a quick-heating type drinking water device, which comprises the following steps: a control module receives and analyzes a water taking instruction of an operation module, obtains a target temperature selected by a user, controls a quick-heating body and a water pump to enter a first working state according to the target temperature, and opens a water outlet assembly; a detection module obtains an ambient temperature where the quick-heating type drinking water device is located, executes a compensation strategy on the target temperature according to different ambient temperatures, and the control module controls the quick-heating body and the water pump to enter a second working state or a third working state according to the compensation strategy; when the maintenance time of the second working state or the third working state exceeds a preset first time threshold, the quick-heating body and the water pump are switched back to the first working state. The application confirms a corresponding temperature compensation strategy by detecting an external ambient temperature, eliminates the influence of the external ambient temperature on the water outlet temperature, makes the water outlet temperature meet the target temperature selected by the user, and improves the user experience.

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 cold, at this time, directly taking water will first draw out the water in the instant heating body, and even enable the instant heating body to heat, but since the instant heating body is cold, most of the heat is absorbed by the instant heating body, resulting in that the water temperature is low under the premise of fast water dispensing speed, and the water temperature does not reach 90℃, which meets the requirement of 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 hot water is affected by the external environment and the pipeline during the process of flowing from the instant heating body to the water outlet, so that part of the heat of the hot water is lost, that is, the temperature of the hot water in the water cup is generally lower than the target temperature when the water is dispensed, which makes the user experience poor. 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. The external environment temperature is detected to confirm the corresponding temperature compensation strategy, the water dispensing temperature is compensated through the temperature compensation strategy, the influence of the external environment temperature on the hot water dispensing temperature is eliminated, the water dispensing temperature meets the target temperature selected by the user, the accuracy of the water dispensing temperature is improved, and the user experience is improved.

[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 control module receives and analyzes the water taking instruction of the operation module, obtains the target temperature selected by the user, controls the instant heating body and the water pump to enter a first working state according to the target temperature, and starts the water dispensing assembly.

[0007] The detection module obtains the environment temperature in which the instant heating type drinking water device is located, executes a compensation strategy on the target temperature according to different environment temperatures, and the control module controls the instant heating body and the water pump to enter a second working state or a third working state according to the compensation strategy.

[0008] When the maintenance time of the second working state or the third working state exceeds a preset first time threshold, the instant heating body and the water pump are switched back to the first working state.

[0009] As a specific embodiment of the present application, the process of performing a compensation strategy on the target temperature according to different ambient temperatures is specifically:

[0010] The detection component detects and obtains the ambient temperature outside the instant hot water device, judges whether the ambient temperature is less than or equal to a first temperature threshold, and if so, enters a second working state to compensate the target temperature by a first compensation amount, otherwise enters a third working state to compensate the target temperature by a second compensation amount, wherein the first compensation amount is greater than the second compensation amount.

[0011] As a specific embodiment of the present application, the process of performing a compensation strategy on the target temperature according to different ambient temperatures is specifically:

[0012] The detection component obtains the outlet temperature of the water inlet component to represent the ambient temperature of the instant hot water device;

[0013] If the outlet temperature of the water inlet component is less than or equal to a preset second temperature threshold, the instant heater and the water pump are controlled to enter a second working state to compensate the target temperature by a first compensation amount;

[0014] If the outlet temperature of the water inlet component is greater than a preset second temperature threshold, the instant heater and the water pump are controlled to enter a third working state to compensate the target temperature by a second compensation amount;

[0015] Wherein, the first compensation amount is greater than the second compensation amount.

[0016] As a specific embodiment of the present application, the first compensation amount and the second compensation amount are dynamic adjustment values, both of which are negatively correlated with the ambient temperature.

[0017] As a specific embodiment of the present application, the control method further comprises:

[0018] When the control module receives a water taking instruction, it obtains the receiving interval of the current water taking instruction and the previous water taking instruction, judges whether the receiving interval is greater than a preset second time threshold, and if so, controls the detection module to obtain the ambient temperature and perform the corresponding compensation strategy, otherwise, obtains the target temperature according to the current water taking instruction, and controls the instant heater and the water pump to enter and maintain the first working state according to the target temperature.

[0019] As a specific embodiment of the present application, the control method further comprises:

[0020] A preheating process is started synchronously when the control module receives the water taking instruction, and is ended before the instant heating body and the water pump enter the first working state, during the preheating process, the water outlet assembly is in a closed state, and the control module controls the operating power of the instant heating body and the water pump.

[0021] As a specific embodiment of the present application, the preheating process specifically includes:

[0022] After the control module receives the water taking instruction, the control module acquires the holding temperature in the holding tank, and compares the holding temperature with a preset holding threshold value in the control module;

[0023] If the holding temperature is less than or equal to the preset holding threshold value, a circulating preheating mode is entered, the water pump and the instant heating body are started, and the circulating preheating mode is ended after a first time length, and the water outlet assembly is started.

[0024] When the holding temperature is greater than the preset holding threshold value, an instant preheating mode is entered, the control module acquires the cold and hot states of the instant heating body and the water stored in the instant heating body, and controls the instant heating body to operate in different power ranges according to the cold and hot states.

[0025] As a specific embodiment of the present application, in the circulating preheating mode, the water outlet assembly is in a closed state, a control valve arranged between the holding tank and the instant heating body is started, so as to form a circulating water circuit among the holding tank, the water pump and the instant heating body, and the control valve is stopped after the circulating preheating mode is ended.

[0026] As a specific embodiment of the present application, in the instant preheating mode, 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 at the same time, the instant heating body is controlled to enter a second preheating state and operate in a second power range.

[0027] The present application provides an instant heating type drinking water device, which is used to execute a control method controlled by a user, and includes:

[0028] A water circuit module includes a water inlet assembly, a water outlet assembly and a circulating water circuit arranged between the water inlet assembly and the water outlet assembly, the circulating water circuit includes a control valve arranged between the holding tank and the water inlet assembly, the holding tank is connected to the water outlet assembly through a water pump, an instant heating body and a water outlet pipeline;

[0029] A control module is electrically connected to the instant heating body and the water pump, and is used to adjust the operating power of the instant heating body and the water pump.

[0030] A display module is electrically connected to the control module and used for displaying the water temperature value.

[0031] An operation module is electrically connected to the control module and used for sending instructions to the control module.

[0032] A detection module is used for detecting the temperature inside the heat preservation tank, i.e. the heat body and the cold and hot state of the water stored inside the heat body.

[0033] The technical effects of the present application are as follows:

[0034] In the present application, the ambient temperature of the instant water heating device is obtained by the detection module, and a compensation strategy is executed on the target temperature according to different ambient temperatures. The control module controls the heat body and the water pump to enter different working states according to the compensation strategy, and correspondingly adjusts the actual water outlet temperature of the water outlet of the heat body in different working states, so that the final water outlet temperature value meets the target temperature required by the user, and is not affected by the external environment temperature. In the continuous water outlet process, the pipeline between the heat body and the water outlet of the water outlet assembly will continuously absorb heat until the external environment cannot significantly affect the water outlet temperature. At this time, if the compensation strategy is still continuously executed, the water outlet temperature will be too high. In the present application, the maintenance time of the compensation strategy execution process is limited to ensure the accuracy of the water outlet temperature and improve the user experience.

[0035] In the technical scheme of the present application, the compensation amount in the compensation strategy process is a dynamic adjustment value, which is adjusted according to the change of the external environment temperature, i.e. negatively related to the external environment temperature. For example, when the ambient temperature value is relatively high, the target temperature is compensated with a relatively low compensation amount to ensure that the water outlet temperature of the water outlet of the water outlet assembly meets the target temperature selected by the user. The dynamic adjustment process can adapt to complex environmental conditions, for example, in an environment with large temperature changes, the water outlet temperature adjustment accuracy can still be ensured to meet the needs of different users.

[0036] In the present scheme, when the interval between the present water taking instruction and the last water taking instruction is less than a preset second time threshold, the pipeline of the water outlet assembly still has heat from the last water taking, and the influence of the ambient temperature on the water outlet temperature is not large in the present water taking process. Continuing to execute the temperature compensation will cause the problem of excessively high water outlet temperature. In order to ensure the accuracy of the water outlet temperature, the compensation strategy is not executed on the target temperature at this time. If the interval is greater than the second time threshold, the target temperature is still compensated according to the control scheme described above. The present scheme limits the execution conditions of the compensation strategy, and further improves the adjustment accuracy of the water outlet temperature. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed by the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only aim to some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0038] Figure 1 A specific step block diagram of the control method of the instant water drinking device.

[0039] Figure 2 A water path connection diagram of the water path module in the present application.

[0040] Figure 3 A flow chart of the preheating stage control and water outlet control in the present application.

[0041] Reference signs:

[0042] 1, water inlet valve; 2, waste water valve; 3, booster pump; 4, water pump; 5, instant heater; 6, water outlet faucet; 7, heat preservation tank; 8, control valve; 9, composite filter element; 10, water outlet valve. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0044] The present application provides a control method of an instant water drinking device, which is applied to instant water drinking devices, including but not limited to instant drinking machines, instant water heating and purifying integrated machines, and instant water purifying faucets.

[0045] A control method of an instant water drinking device, as shown in Figure 1 , includes the following steps:

[0046] 1) The control module receives and analyzes the water taking instruction of the operation module, obtains the target temperature selected by the user, controls the instant heater and the water pump to enter the first working state according to the target temperature, and opens the water outlet assembly.

[0047] The instant hot water device in the application is provided with an instant heating body behind the water outlet of the purified water, which is used to heat the hot water to the target temperature, and the control module obtains the target temperature selected by the user by analyzing the water taking instruction, and controls the instant heating body and the water pump to enter the first working state according to the specific value of the target temperature, specifically, in the first working state, the water inlet temperature before the water inlet of the instant heating body is detected, and the running power of the water pump and the instant heating body is confirmed according to the water inlet temperature and the target temperature, and the water outlet assembly is started to continuously discharge water.

[0048] 2) The detection module obtains the ambient temperature of the instant hot water device, and performs a compensation strategy on the target temperature according to different ambient temperatures, and the control module controls the instant heating body and the water pump to enter the second working state or the third working state according to the compensation strategy.

[0049] The detection module obtains the ambient temperature, and determines the temperature compensation strategy according to the size of the ambient temperature, so that the final water temperature of the hot water can meet the target temperature selected by the user, wherein according to different ambient temperatures, the control module controls the instant heating body and the water pump to enter the second working state or the third working state, wherein the difference between the second working state and the third working state is that the instant hot water device is in different working states selected under different ambient temperatures, such as high temperature or low temperature, summer or winter environment.

[0050] 3) When the maintenance time of the second working state or the third working state exceeds the preset first time threshold, the instant heating body and the water pump are switched back to the first working state.

[0051] The second working state or the third working state in the embodiment is an excessive state, which is used to eliminate the influence of the external environment on the water temperature, and when the pipe between the instant heating body and the water outlet of the water outlet assembly absorbs enough heat, that is, the external environment has no influence on the water temperature, the compensation strategy is stopped and the first working state is switched back to prevent the water temperature from being too high.

[0052] Embodiment 1:

[0053] The embodiment provides a control method of an instant hot water device, which specifically comprises:

[0054] 1, power-on flushing stage:

[0055] After detecting that the instant hot water device is powered on, refer to Figure 2, the control module opens the water inlet valve 1, the waste water valve 2 and the booster pump 3, and the water outlet valve 10 remains closed, and after a certain period of time, for example, 30 seconds, the flushing of the composite filter element 9 is completed, and then it is determined whether a water taking instruction is received. If yes, it is determined whether the water taking temperature is within the preheating process. When taking cold water, the water outlet valve 10 is opened, the water pump 4 and the instant heater 5 are not working, and the water outlet faucet 6 in the water outlet assembly outputs cold water. When taking hot water, the preheating stage is entered.

[0056] The above flushing process is suitable for instant drinking water devices with water purification function. In devices without water purification function, the flushing process is not provided, and the working process starts from the step of receiving the power-on instruction.

[0057] 2. Preheating stage:

[0058] The preheating process starts when the control module receives the water taking instruction and ends before the instant heater and the water pump enter the first working state. In the preheating process, the water outlet assembly is in a closed state, and the operating power of the instant heater and the water pump is controlled by the control module.

[0059] Specifically, as shown in Figure 2 and Figure 3 in the instant drinking water device provided with the heat preservation tank 7, the control module receives the water taking instruction, obtains the heat preservation temperature transmitted by the first temperature sensor arranged in the heat preservation tank 7, and determines whether the heat preservation temperature exceeds the heat preservation threshold. If yes, the instant preheating mode is entered, otherwise the circulation preheating mode is entered. In one specific embodiment of the present embodiment, the heat preservation threshold is set to 51℃, and the temperature in the heat preservation tank is generally between 40-50℃. If the circulation preheating mode is always used for preheating, the user opens the control valve for 2 seconds before taking boiled water each time, which causes the water temperature in the heat preservation tank to rise and exceed 51℃. At this time, low-temperature hot water cannot be output, for example, when the water taking temperature is 45℃. Therefore, in the present embodiment, the instant preheating mode is used when the heat preservation temperature in the heat preservation tank exceeds 51℃.

[0060] In the instant preheating mode, the control module obtains the cold and hot state of the instant heater body and the water stored in the instant heater, controls the instant heater 5 to operate at different power ranges according to the cold and hot state, and ends the preheating process after a first duration. At this time, the water pump 4 is started, and the operating power of the water pump 4 and the instant heater 5 is determined according to the water taking temperature, and the water outlet valve 10 in the water outlet assembly is opened, and the water outlet faucet 6 starts to output water.

[0061] In the circulation preheating mode, the control valve 8 (i.e. the water replenishing valve), the water pump 4 and the instant heater 5 are opened, and a circulation water circuit is formed in cooperation with the heat preservation tank 7. The operating power of the water pump 4 and the instant heater 5 is determined according to the water taking temperature, the preheating process is ended after a first duration, the control valve 8 is closed, the operating power of the water pump 4 and the instant heater 5 is maintained, and the water outlet valve 10 in the water outlet assembly is opened, and the water outlet faucet 6 starts to output water.

[0062] In the specific embodiment of the present embodiment, the first time duration in the instant preheating mode and the circulation preheating mode is a preset constant value, which is set to 2 s in the present embodiment to reduce the waiting time of the user, improve the user's water taking experience, and the holding temperature is the real-time water temperature in the holding tank after stabilization, and the holding threshold is set to 51 ℃. The temperature in the holding tank is generally 40-50 ℃. If the preheating is always performed in the circulation preheating mode, the user opens the control valve for 2 s before taking boiled water each time, which causes the water temperature in the holding tank to rise and exceed 51 ℃. At this time, low-temperature hot water cannot be output, for example, hot water with a water taking temperature of 45 ℃. Therefore, in the present embodiment, the instant preheating mode is adopted when the holding temperature in the holding tank exceeds 51 ℃. In the present embodiment, the water replenishment stage and the circulation preheating mode share the same control valve in front of the holding tank, which reduces the complexity of the waterway structure and reduces the overall material cost.

[0063] In one specific embodiment of the present embodiment, in the instant preheating mode, when the instant heater body is in a hot state and the internal storage water of the instant heater is in a cold state, the instant heater is controlled to enter a first preheating state and operate at a first power range; when the instant heater body and the internal storage water of the instant heater are in a hot state or a cold state at the same time, the instant heater is controlled to enter a second preheating state and operate at 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 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.

[0064] In the above, the running power of the instant heater is determined by the cold and hot states of the instant heater body and the internal storage water of the instant heater. When the instant heater body is in a hot state and the internal storage water of the instant heater is in a cold state, it indicates that the user has just taken water, and the temperature of the instant heater body has not been absorbed by the internal storage water of the instant heater. At this time, the heat of the instant heater is high, and a lower range or gear power is adopted to prevent the water temperature from rising rapidly and causing jetting. When the instant heater body and the internal storage water of the instant heater 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 heater body and the internal storage water of the instant heater are in a cold and hot state at the same time, it indicates that the instant water heating device has been on standby for a long time after the user has taken water. The instant heater in these two states generally does not have the risk of temperature rise and jetting. At this time, the running power of the instant heater is determined according to the water taking temperature and the cold and hot states of the instant heater, wherein the running power required when the instant heater is in a cold state is higher than that when the instant heater is in a hot state, so as to ensure that the water outlet assembly can stably and quickly provide hot water with the temperature required by the user.

[0065] In the present embodiment, as shown in Figure 3 the cold and hot state judgment method of the instant heater body and the internal storage water of the instant heater is specifically:

[0066] The control module acquires the instant heater outlet water temperature through the second temperature sensor.

[0067] When the instant heater outlet water temperature is greater than or equal to the first threshold value, the instant heater body is in a hot state and the instant heater internal water storage is in a cold state, and the control module controls the instant heater to enter a first preheating state; when the instant heater outlet water temperature is less than the first threshold value, the instant heater body and the instant heater internal water storage are in a hot state or a cold state at the same time, and the control module controls the instant heater to enter a second preheating state.

[0068] In one specific embodiment of the present embodiment, the first threshold value is set to 90 DEG C. It should be noted that this value is only one preferred way in the present embodiment, and the size of the first threshold value is not specifically limited in the present embodiment, and can be changed according to actual conditions.

[0069] In the present embodiment, after the water outlet preheating stage starts, the following steps are further included:

[0070] The display module synchronously displays the water outlet temperature value, and the water outlet temperature value is displayed in a gradient increasing manner from an initial temperature value. When the instant heater outlet water temperature reaches the water taking temperature selected by the user, the water outlet temperature value is synchronously displayed as the water taking temperature, the water pump starts to take water, and the operating power of the water pump and the instant heater is adjusted.

[0071] In the above, the initial temperature value is the external environment temperature or the water outlet temperature of the water inlet assembly collected by the third temperature sensor. The water outlet 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 feeling and improves the user experience.

[0072] 3. Water outlet stage:

[0073] The control module receives and analyzes the water taking instruction of the operation module, acquires the target temperature selected by the user, and controls the instant heater and the water pump to enter a first working state after the preheating stage ends. In the first working state, the control module acquires the water inlet temperature of the instant heater, determines the operating power of the water pump and the instant heater in combination with the target temperature, and starts the water outlet assembly to continuously take hot water. Specifically, the power of the water pump and the instant heater is determined by the size relationship and the temperature difference between the real-time water inlet temperature and the target temperature.

[0074] The instant heating body and the water pump enter the first working state, the third temperature sensor is controlled to obtain the external ambient temperature, and it is judged whether the ambient temperature is less than or equal to the first temperature threshold, yes, enter the second working state, compensate the target temperature with the first compensation amount, otherwise enter the third working state, compensate the target temperature with the second compensation amount, wherein, the first compensation amount is greater than the second compensation amount.

[0075] When the maintenance time of the second working state or the third working state exceeds the preset first time threshold, the instant heating body and the water pump are controlled to switch back to the first working state.

[0076] In detail, in the embodiment, the ambient temperature of the instant hot water device is detected, and the corresponding temperature compensation strategy is executed. For example, when the temperature collected by the third temperature sensor is less than or equal to the first temperature threshold, for example, less than or equal to 25℃, it is identified that the weather is winter water, at this time, enter the second working state, when the temperature collected by the third temperature sensor is greater than the first temperature threshold, for example, greater than 25℃, it is identified that the weather is summer water, at this time, enter the third working state, in order to determine the appropriate temperature compensation amount in different environments. Because the temperature is low in winter, the heat loss is more, at this time, the required temperature compensation amount is larger, the temperature is high in summer, the heat loss is relatively small, the required temperature compensation amount is smaller, therefore, the value of the first compensation amount is greater than the value of the second compensation amount.

[0077] Specifically, if the user selects the target temperature as 80℃, at this time, the external ambient temperature is obtained through the third temperature sensor, when it is identified that the weather is summer water, enter the third working state, the control module executes the compensation strategy to compensate the target temperature to 83℃, and the running power of the instant heating body and the water pump is confirmed according to the water outlet temperature of the water inlet assembly obtained by the fourth temperature sensor; when it is identified that the weather is winter water, enter the second working state, the control module executes the compensation strategy to compensate the target temperature to 85℃, and the running power of the instant heating body and the water pump is confirmed according to the water outlet temperature of the water inlet assembly obtained by the fourth temperature sensor, when the maintenance time of the second working state or the third working state exceeds the preset first time threshold, the temperature of the pipeline between the instant heating body and the water outlet assembly rises to a certain value, the water in the pipeline will not be affected by the external ambient temperature, at this time, the instant heating body and the water pump need to be controlled to switch back to the first working state to prevent the water outlet temperature from being too high. It should be noted that the temperature compensation amount in the embodiment is only an example value and is not limited.

[0078] In the embodiment, the first compensation amount and the second compensation amount are dynamic adjustment values instead of fixed values, and are negatively correlated with the size of the ambient temperature, that is, the higher the external ambient temperature, the less heat loss, and the lower the required temperature compensation amount. In order to improve the accuracy of the outlet water temperature, the first compensation amount and the second compensation amount are set as dynamic adjustment values in the embodiment. Specifically, in the embodiment, a data corresponding table of the ambient temperature and the compensation amount can be pre-set in the control mode to realize real-time regulation of the first compensation amount and the second compensation amount, or in another embodiment, by controlling the temperature of the outlet of the instant heater and changing the specific value of the external ambient temperature, a relationship diagram of the temperature difference between the outlet of the instant heater and the outlet water temperature and the external ambient temperature is obtained, and is converted into a corresponding calculation mode imported into the control module, so that the temperature difference corresponding to the current ambient temperature is used as the compensation amount. The first compensation amount and the second compensation amount are located in different environments, and the calculation mode imported into the control module can also be obtained and called according to the specific environment.

[0079] In a specific embodiment of the present embodiment, the control method described above further comprises the steps of:

[0080] When the control module receives the water taking instruction, the receiving interval of the current water taking instruction and the previous water taking instruction after the present power-on is obtained, and it is judged whether the receiving interval is greater than a preset second time threshold. If yes, the detection module obtains the ambient temperature and executes the corresponding compensation strategy, otherwise, the target temperature is obtained according to the current water taking instruction, and the instant heater and the water pump are controlled to enter and maintain the first working state according to the target temperature. In this embodiment, for multiple water taking processes after power-on, when the interval between two water takings is short, the pipeline and the instant heater are in a hot state, that is, the temperature is high, at this time the influence of the ambient temperature is small, and temperature compensation is not needed, and the first working state is directly entered. When the interval between water takings is long, the pipeline and the instant heater are in a cold state, that is, the temperature is low, at this time the influence of the ambient temperature is large, and temperature compensation is needed, and the corresponding compensation strategy is confirmed according to the obtained ambient temperature.

[0081] The present embodiment also provides a instant water heating device, the control method described above is applied to the instant water heating device, and the instant water heating device specifically comprises:

[0082] The waterway module, referring to Figure 2 comprises a water inlet assembly, a water outlet assembly, and a circulating waterway arranged between the water inlet assembly and the water outlet assembly, wherein the circulating waterway comprises a control valve 8 arranged between the heat preservation tank 7 and the water inlet assembly, and the heat preservation tank 7 is connected to the water outlet assembly through the water pump 4 and the instant heater 5.

[0083] In one specific implementation of the embodiment, the water inlet assembly includes a water inlet valve 1 and a filter assembly, the filter assembly includes a composite filter element 9, a booster pump 3 and a wastewater valve 2, the water outlet assembly includes a water outlet valve 1 and a water outlet faucet 6, and the control valve 8 is used as a water replenishment valve, i.e. part of the circulating water path is used as a water replenishment path to replenish the heat preservation tank 7, so as to reduce the complexity of the water path module and reduce the cost.

[0084] A display module is electrically connected to the control module and is configured to display the water outlet temperature value.

[0085] In the embodiment, the display module is a faucet digital tube, which is configured to dynamically display the water outlet temperature value in a gradient increasing manner during the preheating process and continuously display the water temperature value for the user during the water outlet process, so as to improve the user experience.

[0086] An operation module is electrically connected to the control module and is configured to send instructions to the control module.

[0087] In the embodiment, the operation is mainly used to send water taking and water stopping instructions, and the corresponding instructions are sent to the control module according to the user operation, and the operation module can send other instructions, which are not related to the scheme protected in the embodiment and will not be described here.

[0088] A detection module is electrically connected to the control module and is configured to detect and transmit signals of the temperature inside the heat preservation tank 7, the instant heater body and the cold and hot state of the water stored in the instant heater.

[0089] The detection module includes a first temperature sensor configured to detect the heat preservation temperature in the heat preservation tank, a second temperature sensor configured to detect the temperature at the water outlet of the instant heater, a third temperature sensor configured to detect the temperature of the external environment or the temperature at the water outlet of the water inlet assembly, a fourth temperature sensor configured to detect the temperature at the water inlet of the instant heater, and a water level sensor configured to detect the water level in the heat preservation tank.

[0090] A control module is electrically connected to the instant heater 5 and the water pump 4 and is configured to adjust the operating power of the instant heater 5 and the water pump 4.

[0091] In the embodiment, the control module is mainly used to receive the instructions of the operation module, to control the working state of each device in the water path module and the display module by detecting the state of the water path module, to control the water outlet assembly to quickly and stably outlet water, and to meet various needs of the user.

[0092] Embodiment 2:

[0093] The difference between the embodiment and the embodiment 1 is that, in the water outlet stage, the process of performing a compensation strategy on the target temperature according to different ambient temperatures is specifically as follows:

[0094] The detection assembly obtains the outlet temperature of the water inlet assembly to represent the ambient temperature of the instant water heating device, wherein the outlet temperature of the water inlet assembly is the real-time temperature of the purified water flowing out of the outlet of the water tank or the filter assembly, if the outlet temperature of the water inlet assembly is less than or equal to a preset second temperature threshold, the instant heater and the water pump are controlled to enter a second working state to compensate the target temperature by a first compensation amount, if the outlet temperature of the water inlet assembly is greater than the preset second temperature threshold, the instant heater and the water pump are controlled to enter a third working state to compensate the target temperature by a second compensation amount, wherein the first compensation amount is greater than the second compensation amount.

[0095] In the embodiment, the technical principle is similar to that in Embodiment 1, and the way of determining the temperature compensation strategy is different, and in the instant water heating device without the heat preservation tank, the third sensor for detecting the outlet temperature of the water inlet assembly can share the fourth temperature sensor for measuring the inlet temperature of the instant heater in Embodiment 1, so as to reduce the number of components of the instant water heating device and reduce the cost of the whole machine.

[0096] Specifically, when the detected outlet temperature of the water inlet assembly is less than or equal to 20℃, it is determined that the current weather is winter, and when the detected outlet temperature of the water inlet assembly is greater than 20℃, it is determined that the current weather is summer. When the weather is identified as winter, the target temperature of the outlet water is compensated, for example, if the user selects 80℃, the program automatically identifies the ambient temperature and automatically sets the target temperature to 85℃, so as to compensate the actual cup temperature of the outlet water affected by the ambient temperature, and when the weather is identified as summer, the target temperature of the outlet water is compensated, for example, if the user selects 80℃, the program automatically identifies the ambient temperature and automatically sets the target temperature to 83℃. It should be noted that the temperature compensation amount in the embodiment is only an example value and is not limited.

[0097] The other steps are similar to those in Embodiment 1 and are not described here.

[0098] Embodiment 3:

[0099] The difference between the embodiment and Embodiment 1 is that a heat preservation tank is provided in the embodiment, and the preheating process is different, specifically:

[0100] The control module receives a water taking instruction, the control module obtains the cold and hot state of the instant heater body and the water stored in the instant heater, controls the instant heater to operate in different power ranges according to the cold and hot state, the preheating process lasts for a first time length and then ends, at this time, the water pump is started, and the operating power of the water pump and the instant heater is determined according to the water taking temperature, and the water valve in the water outlet assembly is controlled to be opened, and the water faucet starts to outlet water.

[0101] 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 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 faucet quickly and stably discharges water according to the user's demand.

[0102] In one specific embodiment of the present embodiment, when the instant heater enters the preheating process, the instant heater is controlled to enter the first preheating state to operate at the first power range when the instant heater body is in the hot state and the water stored in the instant heater is in the cold state. When the instant heater body and the water stored in the instant heater are in the hot state or the cold state at the same time, the instant heater is controlled to enter the second preheating state to operate at the second power range. The maximum value of the first power range is less than the minimum value of the second power range. 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.

[0103] The remaining steps in the present embodiment are similar to those in Embodiment 1 and will not be described here.

[0104] The present embodiment provides an instant water heating device. Since no heat preservation pipe is provided, the instant heater is directly connected with the water inlet assembly and the water outlet assembly, and the control valve and the first temperature sensor for detecting the temperature in the heat preservation tank are omitted, so that the cost of the whole machine is lower.

[0105] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or 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.

[0106] In the present disclosure, a first feature "on" or "under" a second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact with an intervening medium therebetween, unless otherwise specifically stated and / or clearly dictated otherwise by context. In the description of the disclosure, references to "an embodiment", "some embodiments", "example", "specific example" or "some examples" mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative examples of the above-mentioned terms do not necessarily refer to the same embodiment or example, though they can. Furthermore, the description of a particular feature, structure, material, or characteristic does not imply that the particular feature, structure, material or characteristic is required in all embodiments or examples.

[0107] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered by 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 for an instant hot water dispenser, characterized in that, Includes the following steps: The control module receives and parses the water intake command from the operation module, obtains the target temperature selected by the user, and controls the heating element and water pump to enter the first working state according to the target temperature, and turns on the water outlet component. The detection module acquires the ambient temperature of the instant hot water device and performs a compensation strategy for the target temperature according to different ambient temperatures. The control module controls the instant hot water element and the water pump to enter the second or third working state according to the compensation strategy. When the duration of the second or third working state exceeds a preset first time threshold, the instantaneous heating element and the water pump are controlled to switch back to the first working state. The control method further includes: The preheating process is initiated synchronously when the control module receives the water intake command and ends before the instantaneous heating element and the water pump enter the first working state. During the preheating process, the water outlet component is in the off state, and the control module controls the operating power of the instantaneous heating element and the water pump. The preheating process is specifically as follows: After receiving the water intake command, the control module obtains the insulation temperature inside the insulation tank and compares the insulation temperature with the preset insulation threshold in the control module. If the insulation temperature is less than or equal to the preset insulation threshold, the system enters the circulating preheating mode, the water pump and the instantaneous heating element are turned on, the circulating preheating mode is maintained for a first duration and then ends, and the water outlet component is turned on. When the insulation temperature is greater than the preset insulation threshold, the instant heating preheating mode is entered. The control module obtains the hot and cold status of the instant heating body and the water stored inside the instant heating body, and controls the instant heating body to operate at different power ranges according to the hot and cold status.

2. The control method for the instant hot water dispenser according to claim 1, characterized in that, The process of implementing a compensation strategy for the target temperature based on different ambient temperatures is as follows: The detection component detects and acquires the ambient temperature outside the instant hot water device, and determines whether the ambient temperature is less than or equal to a first temperature threshold. If it is, it enters a second working state and compensates the target temperature with a first compensation amount. Otherwise, it enters a third working state and compensates the target temperature with a second compensation amount, wherein the first compensation amount is greater than the second compensation amount.

3. The control method for the instant hot water device according to claim 1, characterized in that, The process of implementing a compensation strategy for the target temperature based on different ambient temperatures is as follows: The detection component obtains the outlet temperature of the water inlet component to characterize the ambient temperature of the instant hot water device. If the outlet temperature of the water inlet component is less than or equal to the preset second temperature threshold, the instantaneous heating element and the water pump are controlled to enter the second working state to compensate the target temperature with the first compensation amount. If the outlet temperature of the water inlet component is greater than the preset second temperature threshold, the instantaneous heating element and the water pump are controlled to enter the third working state to compensate the target temperature with the second compensation amount. Wherein, the first compensation amount is greater than the second compensation amount.

4. The control method for the instant hot water device according to claim 2 or 3, characterized in that, The first compensation amount and the second compensation amount are dynamic adjustment values, both of which are negatively correlated with the ambient temperature.

5. The control method for the instant hot water device according to claim 1, characterized in that, The control method further includes: When the control module receives a water intake command, it obtains the receiving interval between the current water intake command and the previous water intake command, and determines whether the receiving interval is greater than a preset second time threshold. If it is, it controls the detection module to obtain the ambient temperature and execute the corresponding compensation strategy. Otherwise, it obtains the target temperature according to the current water intake command, and controls the heat exchanger and water pump to enter and maintain the first working state according to the target temperature.

6. The control method for the instant hot water device according to claim 1, characterized in that, In the circulating preheating mode, the water outlet component is in the closed state, and the control valve located between the insulation tank and the instantaneous heating element is opened to form a circulating water circuit between the insulation tank, the water pump, and the instantaneous heating element. After the circulating preheating mode ends, the control valve is closed.

7. The control method for the instant hot water device according to claim 1, characterized in that, In the instant heating preheating mode, when the instant heating body is in a hot state and the water stored inside the instant heating body is in a cold state, the instant heating body is controlled to enter the first preheating state and operate the instant heating body with a first power range; when the instant heating body and the water stored inside the instant heating body are simultaneously in a hot state or a cold state, the instant heating body is controlled to enter the second preheating state and operate the instant heating body with a second power range.

8. An instant hot water dispenser, used to execute the control method of the instant hot water dispenser according to any one of claims 1-7, characterized in that, include: The water circuit module includes an inlet component, an outlet component, and a circulating water circuit between the inlet component and the outlet component. The circulating water circuit includes a control valve, which is located between the insulation tank and the inlet component. The insulation tank is connected to the outlet component via a water pump, an instant heating element, and an outlet pipe. The control module is electrically connected to the instantaneous heating element and the water pump, and is used to adjust the operating power of the instantaneous heating element and the water pump. The display module, electrically connected to the control module, is used to display the water temperature value; The operation module is electrically connected to the control module and is used to send commands to the control module; The detection module is used to detect the internal temperature of the heat preservation tank, the hot and cold state of the instantaneous heating element and the water stored inside the instantaneous heating element.

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