Liquid heating container and its control method and control device

Abstract

A liquid heating container and its control method and device are disclosed. The control method includes: responding to a set water discharge command, activating the heater of the liquid heating container and performing a wastewater discharge step to discharge at least a portion of the residual liquid in the outlet pipe of the liquid heating container as wastewater; wherein the set water discharge command is the first water discharge command received after the heater has stopped operating for more than a set shutdown time, and the water discharge command is a boiling water discharge command; based on the liquid heating container meeting the boiling water discharge conditions, which include the boiling of the liquid in the heater, performing a boiling water discharge step to discharge the boiling liquid in the heater as drinking water through the outlet pipe. This solution can significantly reduce the amount of residual liquid in the pipeline entering the water cup (or other container) during water dispensing, increase the water temperature in the water cup (or other container), improve the problem of low drinking water temperature in the cup during the first few seconds after the heater is turned on after being left idle for a period of time, and is beneficial to user health.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of household appliance technology, specifically to a liquid heating container and its control method and control device. Background Technology

[0002] Currently, with common instant water heaters and other liquid heating containers, even if the user selects the boiling setting after the heater has been in place for a period of time, the water temperature is low in the first few seconds after the heater is turned on and does not reach boiling point. This results in incomplete heating and sterilization, and also causes the drinking water in the user's cup to be at a low temperature, leading to a poor drinking experience. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a liquid heating container and its control method and control device, which can solve the problem that the drinking water in the cup is cold in the first few seconds after the heater is restarted after being placed for a period of time.

[0004] This application provides a control method for a liquid heating container. The control method includes: responding to a set water discharge command, activating the heater of the liquid heating container and performing a wastewater discharge step to discharge at least a portion of the residual liquid in the water outlet pipe of the liquid heating container as wastewater; wherein the set water discharge command is the first water discharge command received after the heater has been continuously stopped for more than a set shutdown time, and the water discharge command is a boiling water discharge command; based on the liquid heating container meeting the boiling water discharge condition, and the boiling water discharge condition including the boiling of the liquid in the heater, performing a boiling water discharge step to discharge the boiling liquid in the heater as drinking water through the water outlet pipe.

[0005] The control method provided in this application, when the user wants boiling water for the first cup after the heater has been in place for a period of time, can first discharge at least a portion of the residual liquid in the outlet pipe as wastewater, preventing the low-temperature liquid in the outlet pipe from entering the user's cup as drinking water. Boiling water is only provided to the user after the liquid in the heater has boiled. This increases the amount of boiling liquid entering the user's cup and reduces the amount of low-temperature liquid entering the cup, thereby improving the problem of low drinking water temperature in the first few seconds.

[0006] Furthermore, compared to solutions that return residual liquid in the outlet pipe and insufficiently heated liquid in the heater to the water tank, inlet assembly, or heater, this embodiment discharges the residual liquid in the outlet pipe and insufficiently heated liquid in the heater as wastewater, no longer providing it for user consumption. Since the residual liquid in the outlet pipe and insufficiently heated liquid in the heater form a low-temperature liquid, the number of bacteria and microorganisms in the liquid increases. This solution avoids such low-temperature liquid being returned to the drinking water and also prevents the liquid in the water tank from being repeatedly heated (the low-temperature liquid heats the room-temperature liquid in the water tank every time the machine is turned on), thus preventing the formation of a liquid similar to "repeatedly boiled water," which is beneficial to user health.

[0007] In one exemplary embodiment, the boiling water condition further includes: the time for the liquid temperature in the heater to reach the boiling point reaches a set boiling time.

[0008] In one exemplary embodiment, the liquid heating container is provided with a wastewater outlet and a water outlet, which are independent of each other. The step of performing the wastewater discharge step, so that at least a portion of the residual liquid in the water outlet pipe of the liquid heating container is discharged as wastewater, includes: closing the water outlet and connecting the water outlet pipe to the wastewater outlet, so that at least a portion of the residual liquid in the water outlet pipe is discharged through the wastewater outlet. The step of performing the boiling water discharge step, so that the boiling liquid in the heater is discharged as drinking water through the water outlet pipe, includes: opening the water outlet and connecting the heater, the water outlet pipe and the water outlet, so that the boiling liquid in the heater is transported through the water outlet pipe to the water outlet for discharge.

[0009] In one exemplary embodiment, the control method further includes: issuing a wastewater reminder signal in response to the set water discharge command; and issuing a boiling water reminder signal based on the liquid heating container meeting the boiling water discharge condition to remind the user to collect boiling water.

[0010] In one exemplary embodiment, the wastewater reminder signal is a cleaning reminder signal to remind the user to use the wastewater to clean the cup.

[0011] This application also provides a control device, including a processor and a memory storing a computer program, wherein the processor executes the computer program to implement the steps of the control method as described in any of the above embodiments.

[0012] This application also provides a liquid heating container, including the control device described in the above embodiments. This application further provides a liquid heating container, including: a heater; a water inlet assembly connected to the water inlet end of the heater; a water outlet pipe, one end connected to the water outlet end of the heater and the other end connected to a water outlet nozzle, and the water outlet pipe having a wastewater outlet; a wastewater container configured to be directly or indirectly connected to the wastewater outlet to store the liquid discharged from the wastewater outlet; and a control valve configured to control the on / off connection between the wastewater outlet and the wastewater container and / or between the water outlet pipe and the water outlet nozzle.

[0013] Based on the above technical solution, the following improvements can be made to this application.

[0014] In an exemplary embodiment, the water outlet pipe includes a delivery pipe and a water outlet pipe, and the heater, the delivery pipe, the water outlet pipe, and the water outlet are connected in sequence; the wastewater outlet is located at the connection between the delivery pipe and the water outlet pipe.

[0015] In an exemplary embodiment, the control valve includes a three-way valve disposed on the outlet pipe, the inlet port of the three-way valve being connected to the delivery pipeline, the first outlet port of the three-way valve being connected to the outlet pipeline, and the second outlet port of the three-way valve being connected to the wastewater outlet.

[0016] In one exemplary embodiment, the wastewater container and the wastewater outlet are connected by a wastewater pipeline; or, the inlet of the wastewater container is located below the wastewater outlet, so that the liquid discharged from the wastewater outlet flows into the wastewater container under the action of gravity.

[0017] In one exemplary embodiment, the wastewater container includes a water receiving tray, and a receiving space for accommodating a water cup is provided between the water receiving tray and the water outlet. The water receiving tray is provided with a support structure for supporting the water cup.

[0018] In one exemplary embodiment, the water tray is a heat-conducting component.

[0019] In one exemplary embodiment, the water tray is a detachable water tray.

[0020] In one exemplary embodiment, the liquid heating container further includes a water tank, the water tank having a water storage chamber, and the water inlet assembly communicating with the water storage chamber.

[0021] In one exemplary embodiment, the water tank is further provided with a wastewater chamber, which is spaced apart from the water storage chamber, and the wastewater container includes the wastewater chamber.

[0022] In one exemplary embodiment, the volume of the water storage chamber is larger than the volume of the wastewater chamber.

[0023] In one exemplary embodiment, the water tank is a detachable water tank.

[0024] In one exemplary embodiment, the wastewater container includes a wastewater tank.

[0025] In an exemplary embodiment, the liquid heating container further includes: a temperature detection device, including at least a first temperature sensor for detecting the liquid temperature at the output end of the heater; and an electronic control device electrically connected to the temperature detection device, the heater, the water inlet assembly, and the control valve, configured to control the control valve, the heater, and the water inlet assembly based on the detection result of the temperature detection device.

[0026] In an exemplary embodiment, the temperature detection device further includes a second temperature sensor disposed on the water outlet pipe, and the second temperature sensor is located downstream of the first temperature sensor; wherein, the electronic control device is configured to control the heater and the water inlet assembly according to the detection result of the first temperature sensor, and to control the control valve according to the detection result of the second temperature sensor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram comparing the temperature curves of the heater outlet water temperature and the water temperature in the cup in a conventional instant water heater.

[0028] Figure 2 This is a schematic diagram of the structure of a liquid heating container provided in one embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of a liquid heating container provided in one embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the structure of a liquid heating container provided in one embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the structure of a liquid heating container provided in one embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of a liquid heating container provided in one embodiment of this application;

[0033] Figure 7 This is a flowchart illustrating a control method provided in one embodiment of this application.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1 heater, 11 thermostat, 21 inlet pipe, 22 water pump, 31 delivery pipe, 32 outlet pipe, 33 outlet nozzle, 4 wastewater pipe, 5 control valve, 6 water tray, 7 water tank, 71 water storage chamber, 72 wastewater chamber, 81 first temperature sensor, 82 second temperature sensor, 83 third temperature sensor, 84 fourth temperature sensor, 91 power board, 92 electronic control board;

[0036] 200 water cups. Detailed Implementation

[0037] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0038] Currently, in common instant water heaters and other liquid heating containers, the water temperature in the user's cup is lower in the first few seconds after the heater is restarted after being idle for a period of time. A temperature curve comparison diagram between the heater outlet water temperature and the water temperature in the cup is shown below. Figure 1 As shown. The main reasons are as follows:

[0039] 1) The water path between the heater outlet and the main water outlet is relatively long. Under normal circumstances, there will be residual water in this section after the last water dispensing. After a period of time, the residual water cools down. When water is dispensed again, this residual water cannot flow back to the heater for heating. Instead, it flows directly into the water cup when the water is dispensed, resulting in low water temperature in the cup.

[0040] 2) After the machine has been cold or left unused for a long time, the water pipe (or other components such as solenoid valves, mixing valves, etc.) between the heater outlet and the machine's water outlet will be at a low temperature. When hot water passes through, these structural and electrical components will absorb the heat from the hot water, resulting in a decrease in the outlet water temperature.

[0041] 3) Current instant water heaters are mainly based on flow heaters, where water is heated through a passage with a thick-film printed element. The heating element is typically filled with water. Assuming a heating power of P = 2000W, a heating efficiency of η = 95%, and 30ml of water in the element, heating from T1 = 25℃ to T2 = 100℃, according to the formula P × t × η = c × m × (T2 - T1), it takes t = 5 seconds to heat the room-temperature water in the element to boiling. However, current instant water heaters generally use an instantaneous, rapid water dispensing method (such as advertised as providing hot water in 1 second), meaning that the water doesn't reach boiling point within the first 5 seconds before flowing into the cup, causing the water temperature in the cup to drop.

[0042] 4) The spout is far from the cup, and a lot of heat is lost to the air during the flow process; the cup itself also absorbs heat from the hot water.

[0043] Therefore, this application provides a liquid heating container and its control method and device, which can solve the problem that the drinking water in the user's water cup 200 is relatively cold in the first few seconds after the machine is turned on.

[0044] like Figure 7 As shown in the figure, this application provides a control method for a liquid heating container, the liquid heating container including a heater 1 and a water outlet pipe. The control method includes:

[0045] Step S102: In response to the set water discharge command, start the heater of the liquid heating container and perform the wastewater discharge step so that at least part of the residual liquid in the water outlet pipe of the liquid heating container is discharged as wastewater; wherein, the set water discharge command is the first water discharge command received after the heater has been continuously stopped for more than a set shutdown time and the water discharge command is a boiling water discharge command.

[0046] Step S104: Based on the fact that the liquid heating container meets the boiling water discharge conditions and the boiling water discharge conditions include the boiling of the liquid in the heater, the boiling water discharge step is performed so that the boiling liquid in the heater is discharged as drinking water through the water outlet pipe.

[0047] The control method provided in this application, when the user wants boiling water for the first cup after the heater has been idle for a period of time (i.e., after the heater has been continuously stopped for more than the set shutdown time), can first discharge at least a portion of the residual liquid in the outlet pipe as wastewater, preventing the low-temperature liquid in the outlet pipe from entering the user's cup as drinking water. Boiling water is only provided to the user after the liquid in heater 1 has boiled. This increases the amount of boiling liquid entering the user's cup and reduces the amount of low-temperature liquid entering the cup, thereby improving the problem of low drinking water temperature in the cup during the first few seconds.

[0048] Furthermore, compared to the approach of returning residual liquid in the outlet pipe and insufficiently heated liquid in heater 1 to the water tank, inlet assembly, or heater 1, this embodiment discharges the residual liquid in the outlet pipe and insufficiently heated liquid in heater 1 as wastewater, no longer providing it for user consumption. Since the residual liquid in the outlet pipe and insufficiently heated liquid in heater 1 form low-temperature liquid, the number of bacteria and microorganisms in the liquid increases. This solution avoids such low-temperature liquid being returned for consumption and also prevents the liquid in the water tank from being repeatedly heated (the low-temperature liquid heats the room-temperature liquid in the water tank every time the machine is turned on), thus preventing the formation of a liquid similar to "repeatedly boiled water," which is beneficial to user health.

[0049] Understandably, after the entire unit is turned off (and the heater is not running), the internal liquid temperature drops to room temperature. Therefore, the first cup of water after turning it on is usually much colder, especially if the first cup is intended to be boiling water, resulting in a larger temperature difference. Alternatively, even if the liquid heating container is turned on but has been in standby mode for an extended period (i.e., the heater is not running), the liquid in the heater and outlet pipe will also drop to room temperature. In this case, if the user wants boiling water for the first cup, the water temperature in the cup will also be much lower, leading to a significant temperature difference. Therefore, this solution primarily addresses the issue of the first cup of water being boiling water when the heater has been idle for a period of time (including both standby and off states). It effectively improves the drinking water temperature when the first cup is boiling water after the heater has been idle for a while, thus enhancing the user's drinking experience.

[0050] The shutdown time is unlimited and can be set as needed, such as within the range of 20 minutes to 1 hour, or other ranges.

[0051] In one exemplary embodiment, the boiling water condition further includes: the time for the liquid temperature in heater 1 to reach the boiling point reaches a set boiling time.

[0052] When the liquid temperature inside heater 1 just reaches its boiling point, the boiling liquid inside heater 1 has not yet entered the outlet pipe, so the liquid in the outlet pipe is not yet boiling liquid. Therefore, the wastewater discharge step can continue, and after a period of time, the boiling water discharge step can be performed. This ensures that the low-temperature liquid in the outlet pipe is completely drained, ensuring that only the boiling liquid from heater 1 is discharged into the user's cup, thereby further improving the water temperature in the user's cup.

[0053] The boiling time can be set without restriction and can be set reasonably according to needs, such as within the range of 1 to 5 seconds, or other ranges.

[0054] In one exemplary embodiment, the criteria for determining whether the liquid in heater 1 is boiling include:

[0055] Based on the fact that the heating time of heater 1 in response to the set water discharge command reaches the set time, it is determined that the liquid in heater 1 is boiling.

[0056] For the same liquid heating container, the volume inside heater 1 is fixed, so the time it takes for heater 1 to heat the liquid to boiling can be calculated. Therefore, this solution determines the boiling point of the liquid in heater 1 based on time, which is more accurate. Compared to using temperature detection as feedback to determine whether the liquid in heater 1 has boiled, this method simplifies the electrical control program of the liquid heating container.

[0057] Of course, the boiling of the liquid inside heater 1 can also be determined by detecting the temperature.

[0058] In one exemplary embodiment, the liquid heating container is provided with independent wastewater outlets and water spouts 33.

[0059] Performing a wastewater discharge step to discharge at least a portion of the residual liquid in the outlet pipe of the liquid heating container as wastewater includes:

[0060] Close the water outlet 33 and connect the water outlet pipe to the wastewater outlet so that at least part of the residual liquid in the water outlet pipe is discharged through the wastewater outlet.

[0061] Performing the boiling water discharge step, so that the boiling liquid in heater 1 is discharged as drinking water through the outlet pipe, includes:

[0062] Open the water outlet 33 and connect the heater 1, the water outlet pipe and the water outlet 33 so that the boiling liquid in the heater 1 is transported to the water outlet 33 through the water outlet pipe and discharged.

[0063] In this design, the liquid heating container is equipped with both a water outlet 33 and a wastewater outlet. The water outlet 33 is used to discharge drinking water, while the wastewater outlet is used to discharge wastewater. This ensures that drinking water and wastewater are discharged through separate channels, preventing users from mistakenly using wastewater as drinking water.

[0064] In one example, the water outlet 33 is connected to one end of the water outlet pipe, and the wastewater outlet is located on the water outlet pipe near the water outlet 33.

[0065] In one exemplary embodiment, the control method further includes:

[0066] In response to the set water discharge command, a wastewater reminder signal is issued;

[0067] The system sends a boiling water reminder signal when the liquid heating container meets the boiling water dispensing conditions, to remind the user to fill the container with boiling water.

[0068] In this solution, when the liquid heating container discharges wastewater, a wastewater warning signal can be issued to remind the user that the discharged water is wastewater, thus preventing the user from drinking the wastewater as drinking water.

[0069] When the liquid in heater 1 boils, it can send a boiling water reminder signal to inform the user that the water being discharged is potable boiling water, thus preventing the user from throwing the boiling water away as wastewater.

[0070] The wastewater warning signal can be, but is not limited to, light signals, sound signals (such as buzzers, voice signals), animated signals, and any combination thereof. The boiling water warning signal can be, but is not limited to, light signals, sound signals (such as buzzers, voice signals), animated signals, and any combination thereof.

[0071] For example: the wastewater warning signal is a red light, and the boiling water warning signal is a green light; or the wastewater warning signal is a beeping sound, and the boiling water warning signal is a silent beeping sound; or the wastewater warning signal is a flashing light, and the boiling water warning signal is a constantly lit, extinguished light.

[0072] In one exemplary embodiment, the wastewater reminder signal is a cleaning reminder signal to remind the user to clean the cup with wastewater.

[0073] In this way, when the liquid heating container discharges wastewater, a cleaning reminder signal can be issued to remind the user to use the discharged wastewater to clean the cup. This not only prevents users from mistakenly using the wastewater as drinking water, but also makes reasonable use of the wastewater to clean the cup, which is in line with the usage habits of most users.

[0074] The outlet for boiling water is a water outlet 33. The outlet for wastewater can be an additional wastewater outlet; the outlet for wastewater can also be the water outlet 33. Sharing the water outlet 33 helps to simplify the structure of the liquid heating container and the electrical control program.

[0075] Of course, the wastewater warning signal doesn't have to be a cleaning warning signal; it can simply be a reminder to the user that the water being discharged is wastewater and should not be drunk.

[0076] This application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, it implements the steps of any of the control methods in the above embodiments, and thus has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0077] The processor may be an integrated circuit chip with signal processing capabilities. The aforementioned processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), an On-Premises Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor.

[0078] This application also provides a liquid heating container, which includes the control device described in the above embodiments, and thus has all the above-mentioned beneficial effects, which will not be repeated here.

[0079] In one example, the liquid heating container is an instant hot water dispenser.

[0080] This application also provides a liquid heating container, such as... Figures 2 to 6 As shown, it includes: heater 1, water inlet assembly, water outlet pipe, wastewater container and control valve 5.

[0081] The water inlet assembly is connected to the water inlet end of the heater 1. One end of the water outlet pipe is connected to the water outlet end of the heater 1, and the other end of the water outlet pipe is connected to the water outlet 33. The water outlet pipe is also equipped with a wastewater outlet.

[0082] The wastewater container is configured to be directly or indirectly connected to the wastewater outlet to store the liquid discharged from the wastewater outlet. The control valve 5 is configured to control the on / off connection between the wastewater outlet and the wastewater container, as well as the on / off connection between the outlet pipe and the outlet nozzle 33.

[0083] The liquid heating container provided in this embodiment includes a heater 1, a water inlet assembly, a water outlet pipe, a wastewater container, and a control valve 5. The heater 1 is mainly used to rapidly heat the liquid flowing through it. The heater 1 can be a heating element. The water inlet assembly may include components such as a water inlet pipe 21 and a water pump 22, mainly used to transport liquid from the water tank 7 or an external water source (such as bottled water) to the heater 1 and provide the power for liquid flow. The water outlet pipe is used to output the liquid heated by the heater 1 to the water outlet 33 of the liquid heating container for user use.

[0084] Compared to conventional instant water heaters, this embodiment adds a wastewater container and correspondingly includes a control valve 5. The wastewater container is connected to the wastewater outlet of the water outlet pipe. Thus, when the control valve 5 connects the water outlet pipe and the water spout, liquid can be output through the water outlet pipe to the user's water cup 200 (or other container). When the control valve 5 connects the wastewater outlet and the wastewater container, liquid can be output through the wastewater outlet to the wastewater container.

[0085] Therefore, during the initial heating phase of the machine's startup, control valve 5 can be switched to connect the wastewater outlet to the wastewater container. This allows at least a portion of the residual liquid in the outlet pipe and the unheated liquid in heater 1 to drain into the wastewater container, preventing it from directly entering the water cup 200 (or other container). After the heating phase, control valve 5 can be switched back to connect the outlet pipe to the spout 33, at which point the liquid flowing into the cup will be the fully heated liquid from heater 1.

[0086] Therefore, this solution can greatly reduce the amount of residual liquid in the pipes that enter the water cup 200 (or other container) when dispensing water, increase the drinking water temperature in the water cup 200 (or other container), and improve the problem of low drinking water temperature in the cup during the first few seconds after the machine is turned on.

[0087] Furthermore, compared to the approach of returning the residual liquid in the delivery pipe 31 and the insufficiently heated liquid in the heater 1 to the water tank 7, the inlet assembly, or the heater 1, this embodiment discharges the residual liquid in the outlet pipe and the insufficiently heated liquid in the heater 1 into a wastewater container as wastewater, which is no longer supplied to users for drinking. Since the residual liquid in the outlet pipe and the insufficiently heated liquid in the heater 1 form a low-temperature liquid, the number of bacteria and microorganisms in the liquid increases. This solution avoids such low-temperature liquid being returned to the drinking water and also prevents the liquid in the water tank 7 from being repeatedly heated (the low-temperature liquid heats the room-temperature liquid in the water tank 7 every time the machine is turned on), thus preventing the formation of a liquid similar to "repeatedly boiled water," which is beneficial to user health.

[0088] In one exemplary embodiment, the water outlet pipe includes a delivery pipe 31 and an outlet pipe 32, and the heater 1, delivery pipe 31, outlet pipe 32, and water outlet 33 are connected in sequence. The wastewater outlet is located at the connection between the delivery pipe 31 and the outlet pipe 32.

[0089] In one example, the length of the delivery pipe 31 is greater than the length of the outlet pipe 32.

[0090] Because the length of the delivery pipe 31 is greater than the length of the outlet pipe 32, the wastewater container is connected to the outlet pipe near the outlet 33. In this way, most of the residual liquid in the outlet pipe and the liquid that has not been fully heated in the heater 1 can be discharged into the wastewater container, which helps to further improve the water temperature of the drinking water in the cup.

[0091] In one exemplary embodiment, the wastewater container and the wastewater outlet are connected via wastewater pipe 4, such as... Figures 2 to 5 As shown in the diagram, this solution adds a wastewater pipe 4 between the wastewater container and the wastewater outlet. This allows for the reasonable arrangement of the wastewater container's location as needed, making the location and structure of the wastewater container flexible and adaptable, which is beneficial for optimizing the structure and performance of the liquid heating container.

[0092] Of course, wastewater pipe 4 can also be omitted, and the wastewater container can be placed directly below the wastewater outlet. Figure 6 As shown. Thus, when control valve 5 connects the wastewater outlet to the wastewater container (i.e., when the wastewater outlet is opened), the liquid can flow directly into the wastewater container under the influence of gravity. Alternatively, the wastewater container can also be directly connected to the wastewater outlet.

[0093] In one example, control valve 5 includes a three-way valve located on the outlet pipe, such as... Figures 2 to 5 As shown. The inlet port of the three-way valve is connected to the end of the delivery pipeline 31 away from the heater 1, the first outlet port of the three-way valve is connected to the end of the outlet pipeline 32 near the delivery pipeline 31, and the second outlet port of the three-way valve is connected to the wastewater outlet.

[0094] In this scheme, the control valve 5 is directly a three-way valve. This way, the opening and closing of two passages can be controlled by the action of one valve, which is beneficial to simplifying the structure of the liquid heating container and also to simplifying the electrical control logic of the liquid heating container.

[0095] Among them, the three-way valve can be a solenoid valve.

[0096] When the inlet port is connected to the first outlet port, the delivery pipe 31 is connected to the outlet pipe 32, and the wastewater outlet is isolated from the wastewater container. The liquid heating container is in the normal water discharge stage.

[0097] When the inlet port is connected to the second outlet port, the wastewater outlet is connected to the wastewater container, and the conveying pipeline 31 is disconnected from the outlet pipeline 32. The liquid heating container is in the wastewater discharge stage.

[0098] In another example, control valve 5 includes a first valve and a second valve. The first valve is located in the outlet pipe 32, and the second valve is located in the wastewater outlet. The first valve controls the opening and closing of the outlet pipe 32, thereby controlling the connection between the delivery pipe 31 and the outlet pipe 32. The second valve controls the opening and closing of the wastewater outlet, thereby controlling the connection between the delivery pipe 31 and the wastewater container.

[0099] In this design, control valve 5 uses two valves (i.e., the first valve and the second valve) to control the opening and closing of the two passages respectively. The first valve and the second valve can be solenoid valves.

[0100] When the first valve is open and the second valve is closed, the delivery pipeline 31 is connected to the outlet pipeline 32, and the delivery pipeline 31 is isolated from the wastewater container. The liquid heating container is in the normal water discharge stage.

[0101] When the first valve is closed and the second valve is open, the delivery pipeline 31 is connected to the wastewater container, and the delivery pipeline 31 is isolated from the outlet pipeline 32. The liquid heating container is in the wastewater discharge stage.

[0102] In one exemplary embodiment, the wastewater container includes a receiving tray 6, such as... Figure 2 and Figure 3 As shown. A receiving space for accommodating the water cup 200 is provided between the water receiving tray 6 and the water outlet 33 of the liquid heating container, and the water receiving tray 6 is provided with a support structure for supporting the water cup 200.

[0103] In this way, when users want to get water, they can directly place the water cup 200 (or other container) on the support structure of the water tray 6. When the water outlet 33 of the liquid heating container comes out, the water cup 200 (or other container) can be filled with water normally, which is very convenient.

[0104] Furthermore, the low-temperature liquid discharged into the drip tray 6 can also preheat and keep the water cup 200 (or other container) warm, preventing the water cup 200 (or other container, especially the cold cup) from absorbing too much heat when water is dispensed from the spout 33, thereby further increasing the temperature of the liquid in the cup.

[0105] For instant water heaters, water dispensers, or other types of liquid heating containers, a water receiving tray 6 is typically provided. The water receiving tray 6 is usually located directly below the water outlet 33. When the cup is full, the overflowing water flows into the water receiving tray 6. This design essentially enriches the function of the water receiving tray 6, allowing it to also collect low-temperature wastewater during the overall heating phase of the machine. This eliminates the need for an additional wastewater container, thus simplifying the structure of the liquid heating container and reducing its cost.

[0106] In one example, the support structure of the drip tray 6 can be a support grid. The support grid serves both a supporting function and a water-passing function, allowing liquid flowing out of the cup to enter the drip tray 6. In this way, the cup 200 (or other container) will not occupy space inside the drip tray 6, which helps to increase the capacity of the drip tray 6.

[0107] Of course, the supporting structure of the water tray 6 can also be the inner bottom wall of the water tray 6, in which case the bottom of the water cup 200 (or other container) can be directly located inside the water tray 6 and come into contact with the liquid inside the water tray 6 to be heated.

[0108] In one exemplary embodiment, the water receiving tray 6 is a heat-conducting component.

[0109] The water tray 6 uses heat-conducting components, such as aluminum alloy components, which have high thermal conductivity. In this way, the water tray 6 can quickly transfer the heat of the low-temperature wastewater to the water cup 200 (or other containers), thereby improving the waste heat utilization rate of the low-temperature wastewater and further increasing the temperature of the liquid in the cup.

[0110] Of course, the drip tray 6 can also be made of ordinary material.

[0111] In one exemplary embodiment, the water tray 6 is a detachable water tray 6.

[0112] The water tray 6 has a detachable structure, which makes it easy for users to remove the water tray 6 and empty the wastewater when it is full.

[0113] In one exemplary embodiment, such as Figures 2 to 5 As shown, the liquid heating container also includes a water tank 7, which has a water storage chamber 71, and the water inlet assembly is connected to the water storage chamber 71.

[0114] The water storage chamber 71 of the water tank 7 can store a certain amount of liquid to provide a water source for the heater 1. In this way, the liquid heating container does not need an external water source.

[0115] For the aforementioned wastewater container including the water receiving tray 6, the liquid heating container may include a water tank 7, or it may not include a water tank 7.

[0116] In one exemplary embodiment, the water tank 7 is further provided with a wastewater chamber 72, such as... Figure 4 and Figure 5 As shown. The wastewater chamber 72 is separated from the water storage chamber 71, and the wastewater container includes the wastewater chamber 72.

[0117] This design effectively utilizes a portion of the space in the water tank 7 as a wastewater chamber 72 for storing wastewater. Compared to placing the wastewater container entirely outside the water tank 7, this design helps reduce the volume of the liquid heating container.

[0118] In one exemplary embodiment, the volume of the water storage chamber 71 is larger than the volume of the wastewater chamber 72, such as... Figure 4 and Figure 5 As shown.

[0119] This design effectively divides the internal space of the water tank 7 into two parts, one large and one small. The larger part serves as a drinking water storage chamber, while the smaller part serves as a wastewater storage chamber. This approach increases the capacity of the water storage chamber 71, reduces the frequency of adding water to the water tank 7, and results in a reasonable layout and simple structure.

[0120] In one exemplary embodiment, the water tank 7 is a removable water tank.

[0121] The water tank 7 is a detachable water tank, which makes it easy to remove the water tank 7 when the wastewater container is full, so as to empty the wastewater in the wastewater container in time and clean the wastewater container in time; it also makes it easy to remove the water tank 7 to replenish water when the water storage chamber 71 is short of water.

[0122] In one exemplary embodiment, the wastewater container includes a wastewater tank, a specially configured container for holding wastewater.

[0123] The water inlet assembly can be directly connected to an external water source, such as bottled water; the water inlet assembly can also be connected to water tank 7, but water tank 7 and wastewater tank are two independent components.

[0124] In one example, the wastewater tank is a removable wastewater tank.

[0125] The wastewater tank has a detachable structure, which makes it easy for users to remove the wastewater tank and empty the wastewater when it is full.

[0126] In one exemplary embodiment, the liquid heating container further includes a temperature detection device and an electronic control device.

[0127] The temperature detection device includes at least a first temperature sensor 81 for detecting the liquid temperature at the output end of the heater 1, such as... Figures 2 to 5 As shown.

[0128] The electrical control device is electrically connected to the temperature detection device, heater 1, water inlet assembly and control valve 5, and is configured to control control valve 5, heater 1 and water inlet assembly according to the detection result of the temperature detection device.

[0129] The first temperature sensor 81 is mainly used to detect the liquid temperature at the output end of the heater 1 so that the electronic control device can adjust the heating power of the heater 1 and the flow rate of the water pump 22 in a timely manner. The first temperature sensor 81 is usually located near the output end of the heater 1.

[0130] Furthermore, by controlling the control valve 5 based on the detection results of the temperature detection device, the liquid below the target temperature and the residual liquid in the original pipeline can be discharged into the wastewater container during the heating stage, so as to prevent the low temperature liquid from lowering the temperature of the liquid in the cup and make the temperature of the liquid in the cup closer to the set target temperature.

[0131] Of course, the electronic control device can also control the control valve 5 according to the running time of the heater 1. For example, after the heater 1 has been running for a set time after the start-up, the control valve 5 switches modes from wastewater discharge mode (i.e., connecting the conveying pipeline 31 and the wastewater container) to normal water discharge mode (i.e., connecting the conveying pipeline 31 and the water discharge pipeline 32).

[0132] In one exemplary embodiment, the temperature detection device further includes: a second temperature sensor 82, such as... Figure 3 and Figure 5 As shown, the second temperature sensor 82 is located downstream of the first temperature sensor 81, within the delivery pipeline 31. In other words, the second temperature sensor 82 is located near the water outlet pipeline 32, which is close to the water outlet 33 of the machine. Therefore, the second temperature sensor 82 is also close to the water outlet 33 of the machine, and can be used to characterize the liquid temperature at the water outlet 33 of the machine.

[0133] The electronic control device is configured to control the heater 1 and the water inlet assembly based on the detection result of the first temperature sensor 81, and to control the control valve 5 based on the detection result of the second temperature sensor 82.

[0134] Some products, due to their internal structural design requirements, have a longer distance between the output end of heater 1 and the water outlet 33 (i.e., a longer water outlet pipe), or other functional modules (such as heat exchange modules) added to this section of the water path, resulting in greater heat loss in this section and a decrease in the overall water outlet temperature. Consequently, the liquid temperature of the first temperature sensor 81 differs significantly from that of the water outlet 33, and therefore cannot accurately represent the temperature of the water outlet 33.

[0135] Therefore, this solution adds a second temperature sensor 82 near the water outlet pipe 32. Compared with the first temperature sensor 81, the second temperature sensor 82 can detect the temperature of the water outlet 33 of the whole machine more accurately, thereby reducing the impact of heat loss in the pipe on the control accuracy and making the temperature of the liquid in the cup closer to the set target temperature.

[0136] In one exemplary embodiment, the electronic control device is configured to: control the control valve 5 to open the wastewater outlet and the wastewater container based on the detection result of the second temperature sensor 82 being lower than the set target temperature; and control the control valve 5 to open the water outlet pipe and the water outlet 33 based on the detection result of the second temperature sensor 82 being equal to or higher than the set target temperature.

[0137] In other words, when the detection result of the second temperature sensor 82 is lower than the set target temperature, the control valve 5 connects the wastewater outlet and the wastewater container, and the whole machine enters the wastewater discharge mode. When the detection result of the second temperature sensor 82 is greater than or equal to the set target temperature, the control valve 5 connects the water outlet pipe and the water outlet 33, and the whole machine enters the normal water discharge mode.

[0138] In some embodiments, such as Figures 2 to 5 As shown, the temperature detection device also includes a third temperature sensor 83 and a fourth temperature sensor 84. The third temperature sensor 83 is configured to detect the liquid temperature in the water inlet pipe 21, and the fourth temperature sensor 84 is configured to detect the liquid temperature in the heater 1. By detecting the temperature of multiple locations, a basis is provided for the electronic control device, which helps to further improve the control accuracy of the electronic control device. The heater 1 is equipped with a temperature controller 11, which can realize intermittent heating of the heater 1 and play a protective role for the heater 1.

[0139] In some embodiments, such as Figures 2 to 5 As shown, the electrical control device includes an electrical control board 92 and a power supply board 91. The power supply board 91 is electrically connected to the heater 1, the temperature detection device, the water pump 22, the electrical control board 92, and the control valve 5, providing power to these components. The electrical control board 92 controls the water pump 22, the control valve 5, and the heater 1 based on the detection results from the temperature detection device.

[0140] In one exemplary embodiment, the liquid heating container is an instant water heater.

[0141] Several specific embodiments are described below with reference to the accompanying drawings.

[0142] Specific Implementation Example 1 (as shown) Figure 2 (As shown)

[0143] This specific embodiment provides an instant water heater, including a water pump 22, an inlet pipe 21, a heater 1, an outlet pipe, a temperature detection device, an electrical control device, a control valve 5, a wastewater pipe 4, and a water receiving tray 6.

[0144] The water outlet pipe includes a conveying pipe 31 and an outlet pipe 32, with the length of the conveying pipe 31 being greater than the length of the outlet pipe 32.

[0145] The control valve 5 is a three-way valve, which is located at the intersection of the delivery pipeline 31, the outlet pipeline 32, and the wastewater pipeline 4. The inlet port of the three-way valve is connected to the delivery pipeline 31, the first outlet port is connected to the outlet pipeline 32, and the second outlet port is connected to the wastewater pipeline 4.

[0146] The temperature detection device includes a first temperature sensor 81, a third temperature sensor 83, and a fourth temperature sensor 84.

[0147] The water tray 6 is a detachable structure. When the water tray 6 is full of water, the user can remove the water tray 6 to empty the wastewater.

[0148] The inlet pipe 21 can be connected to the water tank 7 or an external water source.

[0149] Its working principle is as follows:

[0150] Water pump 22 draws water from water tank 7 (or an external water source) and enters heater 1. During the heating and temperature rise stage, when the first temperature sensor 81 detects that the liquid temperature is lower than the set target temperature, it closes the first water outlet port and opens the second water outlet port, and the water flows into the water receiving tray 6. When the first temperature sensor 81 detects that the liquid temperature is greater than or equal to the set target temperature, it opens the first water outlet port and closes the second water outlet port, and the water flows into water cup 200 (or other container).

[0151] This specific embodiment has the following advantages: During the heating and warming stage, water below the set target temperature and residual water in the original pipeline can be drained into the water receiving tray 6, preventing the low-temperature water from lowering the water temperature in the cup. At the same time, the warm water in the water receiving tray 6 can preheat and keep the water cup 200 (or other containers) warm, preventing the water cup 200 (especially cold cups) from absorbing too much heat from the hot water in the cup.

[0152] Specific Implementation Example 2 (as shown) Figure 3 (As shown)

[0153] The difference from Specific Embodiment 1 is that the temperature detection device adds a second temperature sensor 82, which is located in the delivery pipeline 31 near the outlet pipeline 32.

[0154] Its working principle is as follows:

[0155] Water pump 22 draws water from water tank 7 (or an external water source) and enters heater 1. During the heating and temperature rise stage, when the second temperature sensor 82 detects that the liquid temperature is lower than the set target temperature, it closes the first water outlet port and opens the second water outlet port, and the water flows into the water receiving tray 6. When the second temperature sensor 82 detects that the liquid temperature is greater than or equal to the set target temperature, it opens the first water outlet port and closes the second water outlet port, and the water flows into water cup 200 (or other container).

[0156] In addition to the advantages of Specific Embodiment 1, Specific Embodiment 2 also has the following advantages: the detection result of the second temperature sensor 82 is closer to the water temperature of the whole machine, thus reducing the adverse effect of heat loss in the pipeline on the control accuracy, which is conducive to the water temperature in the cup being closer to the set target temperature.

[0157] Specific embodiment 3 (as shown) Figure 4 (As shown)

[0158] This specific embodiment provides an instant water heater, including a water tank 7, a water pump 22, an inlet pipe 21, a heater 1, an outlet pipe, a temperature detection device, an electrical control device, a control valve 5, and a wastewater pipe 4.

[0159] The water tank 7 includes a water storage chamber 71 and a wastewater chamber 72, and the output end of the wastewater pipeline 4 is connected to the wastewater chamber 72.

[0160] The water outlet pipe includes a conveying pipe 31 and an outlet pipe 32, with the length of the conveying pipe 31 being greater than the length of the outlet pipe 32.

[0161] The control valve 5 is a three-way valve, which is located at the intersection of the delivery pipeline 31, the outlet pipeline 32, and the wastewater pipeline 4. The inlet port of the three-way valve is connected to the delivery pipeline 31, the first outlet port is connected to the outlet pipeline 32, and the second outlet port is connected to the wastewater pipeline 4.

[0162] The temperature detection device includes a first temperature sensor 81, a third temperature sensor 83, and a fourth temperature sensor 84.

[0163] The water tank 7 is a detachable structure. When the wastewater chamber 72 is full, the user can remove the water tank 7 to empty the wastewater.

[0164] Its working principle is as follows:

[0165] Water pump 22 draws water from water storage chamber 71 and enters heater 1. During the heating and temperature rise stage, when the first temperature sensor 81 detects that the liquid temperature is lower than the set target temperature, it closes the first water outlet port and opens the second water outlet port, and the water will flow into the water receiving tray 6. When the first temperature sensor 81 detects that the liquid temperature is greater than or equal to the set target temperature, it opens the first water outlet port and closes the second water outlet port, and the water will flow into water cup 200 (or other container).

[0166] This specific embodiment has the following advantages: during the heating and warming stage, water with a temperature lower than the set target temperature and residual water in the original pipeline can be discharged into the wastewater chamber 72, thus avoiding the low-temperature water from lowering the water temperature in the cup.

[0167] Specific Implementation Example 4 (as shown) Figure 5 (As shown)

[0168] The difference from specific embodiment 3 is that the temperature detection device adds a second temperature sensor 82, which is located in the delivery pipeline 31 near the outlet pipeline 32.

[0169] Its working principle is as follows:

[0170] Water pump 22 draws water from water tank 7 and enters heater 1. During the heating and temperature rise stage, when the second temperature sensor 82 detects that the liquid temperature is lower than the set target temperature, it closes the first water outlet port and opens the second water outlet port, and the water will flow into the water receiving tray 6. When the second temperature sensor 82 detects that the liquid temperature is greater than or equal to the set target temperature, it opens the first water outlet port and closes the second water outlet port, and the water will flow into water cup 200 (or other container).

[0171] In addition to the advantages of embodiment 3, embodiment 4 also has the following advantages: the detection result of the second temperature sensor 82 is closer to the water temperature of the whole machine, thus reducing the adverse effect of heat loss in the pipeline on the control accuracy, which is conducive to the water temperature in the cup being closer to the set target temperature.

[0172] In summary, the liquid heating container provided in this application embodiment can significantly reduce the amount of residual liquid in the water cup 200 (or other container), increase the water temperature in the water cup 200 (or other container), and improve the problem of low water temperature in the cup during the first few seconds after the machine is turned on. Furthermore, compared to the solution of returning residual liquid in the delivery pipeline and insufficiently heated liquid in the heater to the water tank, inlet assembly, or heater, this application embodiment discharges residual liquid in the outlet pipe and insufficiently heated liquid in the heater into a wastewater container as wastewater, which is no longer available for user consumption. Since residual liquid in the delivery pipeline and insufficiently heated liquid in the heater form low-temperature liquid, the number of bacteria and microorganisms in the liquid increases. This solution can prevent such low-temperature liquid from flowing back into the water and being consumed, and can also prevent the liquid in the water tank from being repeatedly heated (the low-temperature liquid heats the room-temperature liquid in the water tank every time the machine is turned on), thus preventing the formation of a liquid similar to "repeatedly boiled water," which is beneficial to user health.

[0173] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0174] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0175] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0176] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0177] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0178] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0179] In any one or more of the exemplary embodiments described above, the described functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored as one or more instructions or code on or transmitted via a computer-readable medium and executed by a hardware-based processing unit. The computer-readable medium may comprise a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium comprising any medium facilitating the transfer of a computer program from one place to another, for example, according to a communication protocol. In this manner, a computer-readable medium may generally correspond to a non-transitory tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. The data storage medium may be any available medium accessible by one or more computers or one or more processors to retrieve instructions, code, and / or data structures for implementing the techniques described in this disclosure. Computer program products may comprise computer-readable media.

[0180] For example, and not as a limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, flash memory, or any other medium that can be used to store desired program code in the form of instructions or data structures and is accessible by a computer. Furthermore, any connection may also be referred to as a computer-readable medium. For example, if instructions are transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. However, it should be understood that computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient media, but rather refer to non-transient tangible storage media. As used herein, disks and optical discs include compact optical discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy disks, or Blu-ray discs, where disks typically reproduce data magnetically, while optical discs use lasers to reproduce data optically. The above combinations should also be included within the scope of computer-readable media.

[0181] For example, instructions can be executed by one or more processors, such as one or more digital signal processors (DSPs), general-purpose microprocessors, application-specific integrated circuits (ASICs), field-programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Therefore, the term "processor" as used herein can refer to any of the above-described structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein can be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated into combined codecs. Furthermore, the techniques can be fully implemented in one or more circuit or logic elements.

[0182] The technical solutions of the embodiments of this disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs), or a set of ICs (e.g., chipsets). Various components, modules, or units are described in the embodiments of this disclosure to emphasize functional aspects of a device configured to perform the described techniques, but they do not necessarily need to be implemented through different hardware units. Rather, as described above, the various units can be combined in codec hardware units or provided by a collection of interoperable hardware units (including one or more processors as described above) combined with suitable software and / or firmware.

Claims

1. A control method for a liquid heating container, characterized in that, The liquid heating container is equipped with independent wastewater outlets and water spouts; The control method includes: In response to a set water discharge command, the heater of the liquid heating container is activated, and a wastewater discharge step is performed so that at least a portion of the residual liquid in the water outlet pipe of the liquid heating container is discharged as wastewater; wherein, the set water discharge command is the first water discharge command received after the heater has been continuously stopped for more than a set shutdown time, and the water discharge command is a boiling water discharge command, and the set shutdown time is in the range of 20 minutes to 1 hour; Based on the fact that the liquid heating container meets the boiling water discharge conditions, and the boiling water discharge conditions include the boiling of the liquid in the heater and the liquid temperature at the water outlet being greater than or equal to the set target temperature, the boiling water discharge step is executed so that the boiling liquid in the heater is discharged as drinking water through the water outlet pipe. The control method further includes: In response to the set water dispensing command, a wastewater reminder signal is issued. The wastewater reminder signal is a cleaning reminder signal to remind the user to use the wastewater to clean the cup. Based on the fact that the liquid heating container meets the boiling water discharge conditions, a boiling water reminder signal is issued to remind the user to fill the container with boiling water.

2. The control method according to claim 1, characterized in that, The boiling water conditions also include: the time it takes for the liquid temperature in the heater to reach the boiling point reaches the set boiling time.

3. The control method according to claim 1 or 2, characterized in that, The step of performing wastewater discharge, to discharge at least a portion of the residual liquid in the outlet pipe of the liquid heating container as wastewater, includes: Close the water outlet and connect the water outlet pipe to the wastewater outlet so that at least a portion of the residual liquid in the water outlet pipe is discharged through the wastewater outlet; The step of performing the boiling water discharge step, so that the boiling liquid in the heater is discharged as drinking water through the outlet pipe, includes: Open the water outlet and connect the heater, the water outlet pipe, and the water outlet so that the boiling liquid in the heater is transported through the water outlet pipe to the water outlet for discharge.

4. A control device, characterized in that, It includes a processor and a memory storing a computer program, wherein the processor executes the computer program to implement the steps of the control method as described in any one of claims 1 to 3.

5. A liquid heating container, characterized in that, Includes the control device as described in claim 4.

6. A liquid heating container, characterized in that, include: heater; The water inlet assembly is connected to the water inlet end of the heater; The water outlet pipe has one end connected to the water outlet of the heater and the other end connected to the water outlet nozzle, and the water outlet pipe is provided with a wastewater outlet. A wastewater container is configured to be directly or indirectly connected to the wastewater outlet to store the liquid discharged from the wastewater outlet; A control valve is configured to control the on / off connection between the wastewater outlet and the wastewater container and / or the on / off connection between the outlet pipe and the outlet nozzle. The temperature detection device includes a first temperature sensor for detecting the liquid temperature at the output end of the heater and a second temperature sensor for detecting the liquid temperature at the outlet. and An electronic control device is electrically connected to the temperature detection device, the heater, and the control valve, and is configured to control the heater based on the detection result of the first temperature sensor and control the control valve based on the detection result of the second temperature sensor. The electronic control device is configured to activate the heater of the liquid heating container in response to a set water discharge command, and to perform a wastewater discharge step so that at least a portion of the residual liquid in the water outlet pipe of the liquid heating container is discharged as wastewater; wherein, the set water discharge command is the first water discharge command received after the heater has been continuously stopped for more than a set shutdown time, and the water discharge command is a boiling water discharge command, and the set shutdown time is in the range of 20 minutes to 1 hour.

7. The liquid heating container according to claim 6, characterized in that, The water outlet pipe includes a delivery pipe and a water outlet pipe, and the heater, the delivery pipe, the water outlet pipe, and the water outlet nozzle are connected in sequence. The wastewater outlet is located at the connection between the conveying pipeline and the outlet pipeline.

8. The liquid heating container according to claim 7, characterized in that, The control valve includes a three-way valve located on the outlet pipe. The inlet port of the three-way valve is connected to the delivery pipeline, the first outlet port of the three-way valve is connected to the outlet pipeline, and the second outlet port of the three-way valve is connected to the wastewater outlet.

9. The liquid heating container according to any one of claims 6 to 8, characterized in that, The wastewater container and the wastewater outlet are connected by a wastewater pipeline; or The inlet of the wastewater container is located below the wastewater outlet, so that the liquid discharged from the wastewater outlet flows into the wastewater container under the action of gravity.

10. The liquid heating container according to any one of claims 6 to 8, characterized in that, The wastewater container includes a water receiving tray, and there is a receiving space between the water receiving tray and the water outlet for accommodating a water cup. The water receiving tray is provided with a support structure for supporting the water cup.

11. The liquid heating container according to claim 10, characterized in that, The drip tray is a heat-conducting component; and / or The water receiving tray is a detachable water receiving tray.

12. The liquid heating container according to any one of claims 6 to 8, characterized in that, Also includes: A water tank, wherein a water storage chamber is provided inside the water tank, and the water inlet component is connected to the water storage chamber.

13. The liquid heating container according to claim 12, characterized in that, The water tank is also provided with a wastewater chamber, which is separated from the water storage chamber, and the wastewater container includes the wastewater chamber.

14. The liquid heating container according to any one of claims 6-8, characterized in that, The second temperature sensor is located on the outlet pipe, and the second temperature sensor is located downstream of the first temperature sensor; The electronic control device is further configured to control the water inlet assembly based on the detection result of the first temperature sensor.

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