Water dispenser and control method thereof

Abstract

The embodiment of the invention provides a water dispenser and a control method of the water dispenser. The water dispenser comprises a water inlet and a water outlet, and further comprises a control assembly, and a first water path and a second water path which are sequentially connected in series between the water inlet and the water outlet in the water flow direction; the first water path comprises a hot tank water path and a normal-temperature water path which are connected in parallel, a hot tank and a first flow control assembly are sequentially arranged on the hot tank water path in the water flow direction, a first heating device used for heating water in the hot tank is arranged in the hot tank, and a heating pipe is arranged on the second water path; the control assembly is used for executing control operation according to the target outlet water temperature so as to output water with the target outlet water temperature through the water outlet, and the control operation comprises the steps of controlling the first flow control assembly so as to control the water flow of the hot tank water path and controlling the heating pipe to heat water flowing through the heating pipe. According to the invention, water with different target water outlet temperatures can be output at a relatively large flow rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric appliance control, in particular to a water dispenser and a control method of the water dispenser. BACKGROUND

[0002] With the increasing environmental pollution and water resource shortage, the application of water dispensers has become an important device in families and industries. The water dispenser is a key device to solve the problem of drinking water, and using the instant water dispenser can obtain drinking water of different temperatures, which can meet various water demand.

[0003] Some existing water dispensers use thick film heating technology to heat the water in the water pipe. Specifically, a layer of conductive material is attached to the surface of the pipe, and heat energy is generated after electrification to heat the water flowing into the pipe, and then the heated water is output. However, the water dispenser based on the thick film heating technology is limited by its own heating power, and the water flow is small. Some other water dispensers use hot tank heating technology. Specifically, the water stored in the hot tank is heated and kept warm to output water of corresponding temperature when the user uses water. However, the water temperature of such water dispenser is difficult to control accurately, and the water storage capacity of the hot tank is limited and cannot sustain water taking. SUMMARY

[0004] The present application is proposed in consideration of the above problems.

[0005] According to a first aspect of the present application, a water dispenser is provided, comprising a water inlet and a water outlet, the water dispenser further comprising: a control assembly, and a first water path and a second water path connected in series along a water flow direction between the water inlet and the water outlet; wherein the first water path comprises a hot tank water path and a normal temperature water path connected in parallel, the hot tank and a first flow control assembly are arranged in sequence along the water flow direction on the hot tank water path, the hot tank is provided with a first heating device for heating water in the hot tank, and a heating tube is arranged on the second water path, the heating tube is used for heating water flowing through the heating tube, and the control assembly is used for performing a control operation according to a target water outlet temperature to output water of the target water outlet temperature through the water outlet, wherein the control operation comprises controlling the first flow control assembly to control the water flow of the hot tank water path, and controlling the heating tube to heat the water flowing through the heating tube.

[0006] In the technical solution, the first water path and the heating pipe are connected in series between the water inlet and the water outlet. The first water path includes a hot tank water path and a normal temperature water path connected in parallel. The hot tank water path is provided with a hot tank and a first flow control component. The control component is used to control the first flow control component and the heating pipe according to a target water outlet temperature, so as to control the temperature of the water output by the water outlet. Compared with using only the hot tank or the heating pipe to heat the water entering the water dispenser, the temperature of the water entering the heating pipe can be controlled in a larger range. Therefore, the water dispenser can ensure that water with different target water outlet temperatures is output, and can also ensure that the water output is the same at different target water outlet temperatures, thereby improving the user experience.

[0007] Exemplarily, the normal temperature water path is provided with a second flow control component; and the control operation further includes: controlling the second flow control component to control the water flow of the normal temperature water path.

[0008] In the technical solution, the water flow in the hot tank water path and the normal temperature water path is controllable. Therefore, the controllable temperature range of the water flow entering the water inlet end of the second water path is further expanded. In the case that the water flow in the normal temperature water path is small by controlling the second flow control component, the water flow from the hot tank water path accounts for a larger proportion in the water flow entering the water inlet end of the second water path. Therefore, in the case that the heating power of the heating pipe is constant, the water dispenser can provide water with a higher temperature. In other words, the water dispenser can support a higher target water outlet temperature. Conversely, in the case that the highest target water outlet temperature is constant, a heating pipe with a smaller heating power can be used, thereby reducing the cost of the water dispenser.

[0009] Exemplarily, the control component is further used to determine a current water outlet mode, the current water outlet mode being one of a plurality of water outlet modes of the water dispenser; and the control operation is further executed according to the current water outlet mode.

[0010] In the technical solution, the control component further determines a current water outlet mode from a plurality of water outlet modes, and executes the control operation according to the current water outlet mode. Compared with a single water outlet mode, a water dispenser supporting a plurality of water outlet modes can meet various different needs of users, and reduces the tedious setting of various parameters by the users, thereby improving the user experience.

[0011] Exemplarily, the normal-temperature water path is provided with a second temperature sensor for detecting the temperature of water flowing in the normal-temperature water path; and the control operation comprises the following operations: when the current water outlet mode is a first water outlet mode of the plurality of water outlet modes, and the target water outlet temperature is higher than a preheating temperature of the hot tank in the first water outlet mode and lower than or equal to a first temperature threshold, and / or when the current water outlet mode is a second water outlet mode of the plurality of water outlet modes, and the target water outlet temperature is higher than the first temperature threshold, controlling the first flow control component to work at a maximum flow; controlling the heating tube to work at a maximum power; determining a first flow of the second flow control component according to the maximum power of the heating tube, the maximum flow of the first flow control component, the temperature of water flowing in the hot tank water path, the temperature of water flowing in the normal-temperature water path, and the target water outlet temperature, and controlling the second flow control component according to the first flow; wherein the preheating temperature of the hot tank in the first water outlet mode is lower than or equal to the first temperature threshold, and the preheating temperature of the hot tank in the second water outlet mode is higher than the first temperature threshold.

[0012] In the above technical solution, the hot tank and the heating tube can be fully utilized in the above case, and the user is provided with drinking water at the maximum flow under the premise that the source water entering the water inlet of the drinking water machine is heated to the target water outlet temperature.

[0013] Exemplarily, the control operation comprises the following operations: when the current water outlet mode is the first water outlet mode, and the target water outlet temperature is higher than the first temperature threshold, controlling the second flow control component to disconnect the normal-temperature water path; controlling the heating tube to work at a maximum power; determining a second flow of the first flow control component according to the maximum power of the heating tube, the temperature of water flowing in the hot tank water path, and the target water outlet temperature, and controlling the first flow control component according to the second flow.

[0014] In the above technical solution, the water outlet efficiency can be improved as much as possible under the premise of ensuring the water outlet temperature when the user needs higher-temperature water and the preheating temperature of the hot tank is low.

[0015] Exemplarily, the control operation comprises the following operations: when the current water outlet mode is the second water outlet mode, and the target water outlet temperature is lower than or equal to the first temperature threshold, controlling the first flow control component to disconnect the hot tank water path; controlling the heating tube to work at a maximum power; determining a third flow of the second flow control component according to the maximum power of the heating tube, the temperature of water in the normal-temperature water path, and the target water outlet temperature, and controlling the second flow control component according to the third flow.

[0016] The above technical solution can ensure that the water outlet temperature is at the target water outlet temperature and improve the water outlet efficiency as much as possible when the user needs low-temperature water and the preheating temperature of the hot tank is high.

[0017] Exemplarily, the control component determines the first flow of the second flow control component according to the maximum power of the heating tube, the maximum flow of the first flow control component, the temperature of the water flowing through the hot tank water path, the temperature of the water flowing through the normal temperature water path, and the target water outlet temperature, including performing the following operations: determining the use power of the water in the hot tank according to the maximum flow of the first flow control component, the temperature of the water flowing through the hot tank water path, and the target water outlet temperature; determining the flow of the second flow control component according to the use power of the water in the hot tank, the maximum power of the heating tube, the temperature of the water flowing through the second water path, and the target water outlet temperature.

[0018] In the above technical solution, the use power of the water in the hot tank is determined based on the maximum flow of the first flow control component and the maximum power of the heating tube, and then the flow of the second flow control component is determined according to the use power of the water in the hot tank. This can ensure that the water dispenser can efficiently output hot water at the target water outlet temperature on the premise that the hot tank and the heating tube both work at their maximum, and the way of determining the flow of the second flow control component is simple and accurate.

[0019] Exemplarily, a first temperature sensor is arranged in the hot tank to detect the temperature of the water in the hot tank as the temperature of the water flowing through the hot tank water path.

[0020] In the above technical solution, the first temperature sensor arranged in the hot tank is used to detect the temperature of the water flowing through the hot tank water path. Thus, only one temperature sensor can be used to control the preheating process of the hot tank, detect the temperature of the water flowing through the hot tank water path, and then perform the above control operation. This effectively reduces the cost of the water dispenser.

[0021] Exemplarily, a third temperature sensor is arranged on the hot tank water path or at the water outlet of the hot tank water path to detect the temperature of the water flowing through the hot tank water path.

[0022] By arranging a temperature sensor at the water outlet of the hot tank water path to detect the temperature of the water in the hot tank water path, the initial temperature of the water entering the heating tube can be more accurately determined, and the water flow of the normal temperature water path or the hot tank water path can be more accurately controlled.

[0023] For example, the control operation includes the following operations: when the current water outlet mode is the energy-saving mode among the plurality of water outlet modes, controlling the first flow control component to disconnect the water circuit of the hot tank; controlling the heating element to operate at maximum power; determining a fourth flow rate of the second flow control component based on the maximum power of the heating element, the temperature of the water flowing through the room temperature water circuit, and the target water outlet temperature, and controlling the second flow control component based on the fourth flow rate; wherein, in the energy-saving mode, controlling the first heating device not to operate.

[0024] In the above technical solution, when the current water dispensing mode is the energy-saving mode among multiple water dispensing modes, the preheating function of the hot water tank is turned off, and the first flow control component is controlled to disconnect the water circuit of the hot water tank; the heating element is controlled to heat the water flow from the room temperature water circuit at maximum power. This can effectively reduce the energy consumption of the water dispenser, while still ensuring the target water dispensing temperature and maximizing water dispensing efficiency.

[0025] For example, the plurality of water dispensing modes include a first water dispensing mode, a second water dispensing mode, and an energy-saving mode; the control component is further configured to: when the water dispenser is operating in intelligent mode, statistically analyze, at a preset time period, the first duration of water dispensing at a target water temperature less than or equal to a first temperature threshold and the second duration of water dispensing at a target water temperature greater than the first temperature threshold in each time interval within the current time period; for each time interval, if the first duration is greater than the second duration, then the water dispenser is controlled to operate in the first water dispensing mode in the corresponding time interval of the next time period; if the second duration is greater than the first duration, or the first duration is equal to the second duration and not 0, then the water dispenser is controlled to operate in the second water dispensing mode in the corresponding time interval of the next time period; if both the first duration and the second duration are 0, then the water dispenser is controlled to operate in the energy-saving mode in the corresponding time interval of the next time period; wherein, in the first water dispensing mode, the preheating temperature of the water in the hot tank is lower than the first temperature threshold, and in the second water dispensing mode, the preheating temperature of the water in the hot tank is equal to or higher than the first temperature threshold.

[0026] In the above technical solution, the control component allows the water dispenser to record the first and second durations within each time interval of the current time cycle. Based on the magnitude of the first and second durations, the water dispensing mode for the same time interval in the next cycle is determined. By recording the user's usage habits in each time interval and adjusting the dispensing mode accordingly in the next time cycle, the water dispensing efficiency of the water dispenser within the corresponding time interval can be improved more accurately, enhancing the dispenser's intelligence and thus improving the user experience.

[0027] For example, the water dispenser is further provided with: a receiving component for receiving instructions sent by a user; the control component is further used to determine the current water dispensing mode according to the instructions sent by the user.

[0028] In the above technical solution, the water dispenser is equipped with a receiving component to receive instructions sent by the user, and a control component to determine the current water dispensing mode based on the instructions. By combining the receiving and control components, the water dispenser can adjust according to the user's needs, thereby outputting water at the target temperature required by the user.

[0029] For example, the first flow control component is a water pump, the second flow control component is a controllable valve, and a flow detection sensor is also provided in the second water path. The flow detection sensor is used to detect the flow rate of the water flowing through the second water path. The control component controls the second flow control component to control the water flow rate of the ambient temperature water path by performing the following operations: controlling the controllable valve according to the flow rate of the water flowing through the second water path to control the water flow rate of the ambient temperature water path.

[0030] In the above technical solution, the first flow control component is a water pump, which ensures the smooth flow of water from the hot water tank and has high control accuracy. The second flow control component is a controllable valve, which consumes almost no electricity, thus reducing the energy consumption of the water dispenser, and its cost is also low. The control component can control the controllable valve more precisely while maintaining high accuracy in the water pump's flow control. This ensures a more accurate temperature of the water output from the water dispenser's outlet.

[0031] For example, a fourth temperature sensor is provided at the water outlet to detect the temperature of the water output from the water outlet; the control operation also includes: when the heating element is working at maximum power and the temperature of the water output from the water outlet is not equal to the target water temperature, controlling the second flow control component to adjust the water flow rate of the normal temperature water path.

[0032] In the above technical solution, when the temperature of the water output from the outlet differs from the target outlet temperature and the heating element operates at maximum power, the water flow rate of the ambient temperature water circuit and / or the hot water circuit can be adjusted. By utilizing the actual temperature of the water output from the outlet, the water flow rate of the ambient temperature water circuit and / or the hot water circuit can be further controlled in a closed loop, making the temperature of the water output from the water dispenser's outlet closer to the target outlet temperature.

[0033] For example, a first temperature sensor is provided inside the hot tank to detect the temperature of the water inside the hot tank; the control operation includes: when the temperature of the water inside the hot tank is lower than a preset threshold temperature, controlling the first flow component to disconnect the water circuit of the hot tank, and controlling the heating element to heat the water flowing through the heating element according to the target outlet water temperature.

[0034] In the above technical solution, when the temperature of the water in the heating tank is lower than the preset threshold temperature, the first flow component is controlled to disconnect the water circuit of the heating tank, and the heating element is controlled to heat the water from the room temperature water circuit according to the target outlet water temperature. This can avoid the negative impact of the water in the heating tank not reaching the preset threshold temperature on the water dispenser, and ensure that the water output is at the target outlet temperature.

[0035] For example, the control operation includes the following operations: when the target outlet water temperature is lower than the preheating temperature of the water in the hot tank, controlling the first flow control component to disconnect the water circuit of the hot tank, and controlling the heating element to heat the water flowing through the heating element according to the target outlet water temperature.

[0036] In the above technical solution, when the water level in the hot water tank does not reach the preset level, the first flow component is controlled to disconnect the water circuit of the hot water tank, and the heating element is controlled to heat the water from the room temperature water circuit according to the target outlet water temperature. This can prevent the first heating device from working when the water level in the hot water tank is too low, thus improving the safety of the water dispenser.

[0037] For example, a water level sensor is installed inside the hot tank to detect the water level inside the hot tank; the control operation includes: when the water level inside the hot tank does not reach the preset water level, controlling the first flow component to disconnect the water circuit of the hot tank, and controlling the heating tube to heat the water flowing through the heating tube according to the target outlet water temperature.

[0038] In the above technical solution, when the target outlet water temperature is lower than the preheating temperature of the water in the hot water tank, the first flow control component is controlled to disconnect the water circuit of the hot water tank, and the heating element is controlled to heat the water from the room temperature water circuit according to the target outlet water temperature. This ensures that the water flowing out of the water dispenser is at the target outlet water temperature.

[0039] According to a second aspect of the present invention, a control method for a water dispenser is also provided. The water dispenser includes an inlet and an outlet, a control component, and a first water path and a second water path connected in series between the inlet and the outlet along the water flow direction. The first water path includes a hot water path and a room temperature water path connected in parallel. A hot water path and a first flow control component are sequentially arranged along the water flow direction on the hot water path. A first heating device for heating water in the hot water path is provided inside the hot water path. A heating element is provided on the second water path for heating water flowing through the heating element. The method includes: performing a control operation based on a target outlet water temperature to dispense water at the target outlet water temperature through the outlet. The control operation includes controlling the first flow control component to control the water flow rate in the hot water path and controlling the heating element to heat the water flowing through the heating element. This control method can be executed by the control component of the water dispenser.

[0040] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0041] The above and other objects, features, and advantages of the present invention will become more apparent from the more detailed description of the embodiments of the invention in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0042] Figure 1 A schematic block diagram of a water dispenser according to an embodiment of the present invention is shown;

[0043] Figure 2 A schematic block diagram of a water dispenser according to another embodiment of the present invention is shown; and

[0044] Figure 3 A schematic flowchart of a control method for a water dispenser according to an embodiment of the present invention is shown. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of the present invention.

[0046] To at least partially solve the above problems, according to one aspect of the embodiments of this application, a water dispenser is provided.

[0047] Figure 1 A schematic block diagram of a water dispenser according to an embodiment of the present invention is shown. Figure 1 As shown, the water dispenser includes an inlet 110 and an outlet 120. The inlet 110 is used to introduce source water from outside the dispenser into its water circuit. For example, the inlet 110 can be connected to a municipal water pipe, a water purifier, or other water source. The outlet 120 is used to discharge water from the dispenser to the outside. For example, the outlet 120 can be connected to a water dispensing device, which may include various faucets, etc.

[0048] The water dispenser also includes a first water path 200 and a second water path 300 connected in series along the water flow direction between the inlet 110 and the outlet 120. The first water path 200 includes a hot water path 210 and a room temperature water path 220 connected in parallel. Water from the inlet 110 can flow directly into the second water path 300 through the room temperature water path 220. Throughout this process, no heating operation is performed on the water flow. In other words, the water flowing from the room temperature water path 220 to the inlet of the second water path 300 can always maintain a room temperature. A hot water path 210 is provided with a hot water tank 211 and a first flow control component 212 arranged in series along the water flow direction. A first heating device 213 is provided inside the hot water tank 211 for heating the water inside. The hot water tank 211 can be used to store water, and the first heating device 213 is used to preheat the water stored in the hot water tank 211. The first heating device 213 can heat the water in the hot tank 211 when the user is not drawing water, i.e., when the hot tank water circuit 210 is disconnected. Therefore, when the user draws water, the water flowing through the hot tank water circuit 210 to the inlet of the second water circuit 300 can be water that has already been heated to a certain degree. The second water circuit 300 is equipped with a heating element 310 for heating the water flowing through it. The heating element 310 can be a pipe using thick-film heating technology, a composite pipe composed of conventional or specific heating components and ordinary pipes, or a pipe directly composed of heating components. After being heated by the heating element 310, the water flowing to the outlet of the second water circuit 300 has the user's desired target outlet temperature.

[0049] A filtration device, such as various types of filter cartridges, can also be installed in the second water channel 300 and / or the first water channel 200. The filtration device is used to filter the passing water. Thus, the water dispenser can purify water and can be called a water purifier.

[0050] Other components can be added to the first water channel 200 or the second water channel 300 to obtain the water status in the first water channel 200 and the second water channel 300 more accurately. For example, a sensor can be added to the second water channel 300 to obtain the water flow and water temperature of any water segment in the second water channel 300; a sensor can be added to the first water channel 200 to obtain the water flow and water temperature of any water segment in the second water channel 300.

[0051] The water dispenser also includes a control component 400. This control component 400 performs control operations based on a target outlet water temperature to output water at the target outlet temperature via the outlet 120. The control operations may include controlling a first flow control component 212 to control the water flow rate in the hot water tank circuit 210, and controlling the heating element 310 to heat the water flowing through it.

[0052] The target outlet water temperature is the user's desired water temperature. Understandably, the target outlet water temperature can be greater than or equal to the source water flowing into the water dispenser's inlet 110; otherwise, no heating device is needed. Assuming the water flow rates in the ambient temperature water path 220 and the hot water path 210 remain unchanged, since the heating elements 310 in the first water path 200 and the second water path 300 are connected in series, the higher the heating power of the heating element 310, the higher the temperature of the water output from the outlet 120.

[0053] Different target outlet water temperatures can correspond to specific water flow rates in the heating tank water circuit 210. By accurately controlling the water flow rate in the heating tank water circuit 210, the temperature of the water exiting from outlet 120 can be controlled more precisely. Without changing the water flow rate in the ambient temperature water circuit 220 or the heating performance of the heating element 310, a higher water flow rate in the heating tank water circuit 210 results in a larger proportion of the total water flow entering the heating element 310 in the second water circuit 300, leading to a higher initial temperature of the water entering the heating element 310. Due to the limitations of heating performance, the temperature of the water output from outlet 120 is higher. Therefore, the first flow control component 212 can be controlled to increase the water flow rate in the heating tank water circuit 210, thereby increasing the temperature of the water output from outlet 120; conversely, the first flow control component 212 can be controlled to decrease the water flow rate in the heating tank water circuit 210, thereby decreasing the temperature of the water output from outlet 120.

[0054] The first flow control component 212 can be any component that can control the water flow rate of the hot tank water circuit 210, such as a water pump or a controllable valve. For example, when the first flow control component 212 is a water pump, it can control the working power of the water pump to control the water flow rate of the hot tank water circuit 210; when the first flow control component 212 is a valve, it can control the opening degree of the valve to control the water flow rate of the hot tank water circuit 210.

[0055] The control component 400 can control the heating performance of the heating element 310 by controlling its heating power and shape, thereby controlling the heating of the water flowing through it to the desired degree. For example, when the inlet water temperature remains constant, the control component 400 can increase the heating power of the heating element 310 to heat the water inside it more quickly, resulting in higher-temperature water output from the outlet 120. Specifically, the power of the heating element 310 can be controlled by a thyristor and a relay to change its heating performance. When the inlet water temperature remains constant, the control component 400 can change the shape of the heating element 310 to increase the contact area between the heating element 310 and the water flowing through it, thereby increasing heating efficiency and improving its heating performance, ultimately resulting in higher-temperature water output from the outlet 120.

[0056] By reducing the temperature difference between the water entering the heating element 310 and the target outlet water temperature, the flow rate of water at the target outlet temperature can be increased. When the first heating device 213 heats the water in the heating tank 211, the water in the heating tank 211 is typically hotter than the water flowing through the ambient temperature water path 220. Therefore, by connecting the ambient temperature water path 220 and the heating tank water path 210 in parallel, and the first water path 200 and the second water path 300 in series, the controllable range of the initial temperature of the water entering the heating element 310 can be expanded. When the temperature difference between the water entering the heating element 310 and the water at the target outlet temperature is small, the flow rate of water output from the outlet 120 is larger, improving water output efficiency.

[0057] In the above technical solution, a first water path 200 and a heating element 310 are connected in series between the water inlet 110 and the water outlet 120. The first water path 200 includes a heated water path 210 and a room temperature water path 220 connected in parallel. The heated water path 210 is equipped with a heated tank 211 and a first flow control component 212. The control component 400 is used to control the first flow control component 212 and the heating element 310 according to the target outlet water temperature, thereby realizing the temperature control of the water output from the outlet 120. Compared with using only the heated tank 211 or the heating element 310 to heat the water entering the water dispenser, the temperature of the water entering the heating element 310 can be controlled within a wider range. Therefore, the water dispenser can ensure the output of water at different target outlet water temperatures, and can also ensure the water output at different target outlet water temperatures, thereby improving the user experience.

[0058] Figure 2 A schematic block diagram of a water dispenser according to another embodiment of the present invention is shown. Figure 2 As shown, exemplarily, a second flow control component 222 is provided on the ambient temperature water path 220. The above control operation may also include the following operation: controlling the second flow control component 222 to control the water flow rate of the ambient temperature water path 220.

[0059] The second flow control component 222 can be any component capable of controlling the water flow rate of the ambient temperature water circuit 220, such as a water pump or valve. For example, when the second flow control component 222 is a water pump, it can control the operating power of the water pump to control the water flow rate of the ambient temperature water circuit 220. When the second flow control component 222 is a valve, it can control the valve opening to control the water flow rate of the ambient temperature water circuit 220. When the second flow control component 222 is a valve, it can reduce the power consumption of components on the ambient temperature water circuit 220.

[0060] By controlling the water flow rate of the room temperature water circuit 220 through the second flow control component 222 on the room temperature water circuit 220 and the water flow rate of the hot tank water circuit 210 through the first flow control component 212 on the hot tank water circuit 210, the water flow rate of the room temperature water circuit 220 and the water flow rate of the hot tank water circuit 210 can be adjusted simultaneously, thereby controlling the water flow rate of the water flowing into the heating element 310 in the second water circuit 300 more accurately and flexibly.

[0061] In the above technical solution, the water flow rates in both the hot water tank circuit 210 and the ambient temperature water circuit 220 are controllable. This further expands the controllable temperature range of the water flowing into the second water circuit 300. By controlling the second flow control component 222 to keep the water flow rate in the ambient temperature water circuit 220 relatively low, the proportion of water flowing out of the hot water tank circuit 210 in the water flowing into the second water circuit 300 is larger. Therefore, with a fixed heating power of the heating element 310, the water dispenser can provide water at a higher temperature. In other words, the water dispenser can support a higher target outlet water temperature. Conversely, with a fixed maximum target outlet water temperature, a heating element 310 with a lower heating power can be used, thereby reducing the cost of the water dispenser.

[0062] For example, the water dispenser may support multiple different water dispensing modes. The control component 400 is also used to determine the current water dispensing mode. The current water dispensing mode is one of the multiple water dispensing modes supported by the water dispenser. The execution of control operations by the control component 400 is also based on the current water dispensing mode.

[0063] Each water dispensing mode has corresponding operating parameters, which may include the water flow rate from the ambient temperature water circuit 220 into the heating element 310, the water flow rate from the hot water tank circuit 210, the preheating temperature of the water in the hot water tank 211, and other parameters related to the water dispenser's outlet water temperature and flow rate. The operating parameters for each mode may be the same or different.

[0064] When the control component 400 performs control operations according to the current water outlet mode, it can control one or more of the following components, such as the first flow control component 212 of the hot water tank circuit 210, the second flow control component 222 of the normal temperature water circuit 220, and the heating element 310, according to the operating parameters corresponding to the current water outlet mode, so that the water outlet 120 of the water dispenser outputs water at the target water outlet temperature.

[0065] Multiple water dispensing modes can include any suitable mode such as low-temperature mode and high-temperature mode. When the water dispenser has multiple dispensing modes, the control component 400 can perform control operations based on both the dispensing mode and the target dispensing temperature. For example, in low-temperature mode, the preheating temperature of the water stored in the heating tank 211 can be lower. In low-temperature mode and when the target dispensing temperature is low, the water flow rate in the heating tank water path 210 can be increased, while the water flow rate in the ambient temperature water path 220 can also be increased, thereby increasing the efficiency of the water dispenser in dispensing low-temperature water. In high-temperature mode, the preheating temperature of the water stored in the heating tank 211 can be higher. In high-temperature mode and when the target dispensing temperature is low, the water flow rate in the heating tank water path 210 can be reduced, while the water flow rate in the ambient temperature water path 220 can be increased, to ensure the output of water at the target dispensing temperature while avoiding waste of high-temperature water in the heating tank 211.

[0066] In the above technical solution, the control component 400 also determines the current water dispensing mode among multiple water dispensing modes and performs control operations according to the current water dispensing mode. Compared with a single water dispensing mode, a water dispenser that supports multiple water dispensing modes can meet various user needs and reduce the tedious setting of various parameters by users, thereby improving the user experience.

[0067] Refer again Figure 2 For example, a second temperature sensor 222 is provided on the ambient temperature water path 220 to detect the temperature of the water flowing through the ambient temperature water path 220.

[0068] The second temperature sensor 222 can be installed on the ambient temperature water path 220 between the water inlet 110 of the water dispenser and the second flow control component 222, or it can be installed on the ambient temperature water path 220 between the second flow control component 222 and the heating element 310, depending on actual needs. Because the water temperature may vary at different locations within the water path as it flows, installing the second temperature sensor 222 on the ambient temperature water path 220 between the second flow control component 222 and the heating element 310 allows for more accurate detection of the temperature of the water flowing through the ambient temperature water path 220 when it enters the heating element 310, thus providing the water temperature within the ambient temperature water path 220.

[0069] When the current water outlet mode is the first of multiple water outlet modes, and the target water outlet temperature is higher than the preheating temperature of the water in the heating tank 211 under the first water outlet mode but lower than or equal to the first temperature threshold, it can be considered to be in the first situation. The control operation performed by the control component 400 may also include the following operations. In the first situation: control the first flow control component 212 to operate at maximum flow rate; control the heating element 310 to operate at maximum power; determine the first flow rate of the second flow control component 222 based on the maximum power of the heating element 310, the maximum flow rate of the first flow control component 212, the temperature of the water flowing through the heating tank water path 210, the temperature of the water flowing through the room temperature water path 220, and the target water outlet temperature, and control the second flow control component 222 based on the first flow rate. Wherein, the preheating temperature of the heating tank 211 under the first water outlet mode is lower than the first temperature threshold. The first temperature threshold can be preset before leaving the factory, or it can be set by the user as needed after the water dispenser leaves the factory. For example, the first temperature threshold can be 60 degrees. When the current water outlet mode is the first water outlet mode, the water stored in the hot tank 211 is low temperature water.

[0070] When the target outlet water temperature is higher than the temperature of the water stored in the hot water tank 211, not only the water flowing through the ambient temperature water path 220 needs to be heated by the heating element 310, but also the water output from the hot water tank path 210 to the heating element 310 needs to be heated by the heating element 310. If the target outlet water temperature is lower than the first temperature threshold, i.e., the desired water temperature is lower, then the heating element 310 can heat all the flowing water to the target outlet water temperature, providing the user with a larger flow rate as much as possible. Furthermore, the preheating temperature of the hot water tank 211 is the desired temperature that the water in the hot water tank 211 should reach before use. It can be understood that if the water in the hot water tank has not reached this preheating temperature, the first heating device 213 in the hot water tank 211 can heat the water to reach the preheating temperature. When the water in the hot water tank 211 reaches the preheating temperature, the temperature difference between the water temperature in the hot water tank 211 and the target outlet water temperature is small compared to the water temperature in the ambient temperature water path 220. Therefore, in the first case mentioned above, the water flow rate of the hot water tank 210 can be controlled at the maximum water flow rate to increase the water output, and the heating element 310 can be controlled to work at the maximum power to provide more heat, thereby heating more water.

[0071] Understandably, the maximum power of the heating element 310 affects the heating performance of the water flowing through it. When the maximum power of the heating element 310 is fixed, the water flow rate and initial temperature entering the heating element 310 affect the temperature of the water output from the outlet 120. The maximum flow rate of the hot water circuit 210 and the flow rate of the ambient temperature water circuit 220 affect the water flow rate entering the heating element 310. The temperature of the water flowing through the hot water circuit 210 and the temperature of the water flowing through the ambient temperature water circuit 220 affect the initial temperature of the water entering the heating element 310.

[0072] Conversely, the first flow rate can be determined based on the maximum power of the heating element 310, the maximum flow rate of the hot water channel 210, the temperature of the water flowing through the hot water channel 210, the temperature of the water flowing through the ambient temperature water channel 220, and the target outlet water temperature. The first flow rate is the desired water flow rate of the ambient temperature water channel 220. Understandably, after determining the first flow rate, the second flow control component 222 can be controlled to adjust the water flow rate of the ambient temperature water channel 220 to the first flow rate. At this time, the water flow rate into the heating element 310 in the second water channel 300 is the sum of the first flow rate and the water flow rate of the hot water channel 210.

[0073] The maximum power of the heating element 310 is fixed. There is a temperature difference between the water flowing through the hot water channel 210 and the target outlet water temperature. The power of the heating element 310 is used not only to heat the water flow from the hot water channel 210 but also to heat the water flow from the ambient temperature water channel 220. First, the power of the heating element 310 required to heat the water in the hot water channel 211 to the target outlet water temperature when the first flow control component 212 operates at maximum flow (hereinafter referred to as the power used by the water in the hot water channel 211) can be determined. Based on the maximum power of the heating element 310 and the power used by the water in the hot water channel 211, the power required to heat the water input from the ambient temperature water channel 220 into the heating element 310 can be determined to the target outlet water temperature. Then, the flow rate of the ambient temperature water channel 220 is determined based on this power.

[0074] For example, when controlling the first flow control component 212 to operate at maximum flow rate and the heating element 310 to operate at maximum power, the flow rate of the second flow control component 222 can be determined using the following steps. First, the power consumption of the water in the heating tank 211 is determined based on the maximum flow rate of the first flow control component 212, the temperature of the water flowing through the heating tank water path 210, and the target outlet water temperature. It can be understood that the closer the preheating temperature of the heating tank 211 is to the target outlet water temperature, the lower the power consumption of the water in the heating tank 211. When the preheating temperature of the heating tank 211 is lower than or equal to the target outlet water temperature, the power consumption of the water in the heating tank 211 is 0. At this time, all the power of the heating element 310 can be used to heat the water flowing into the ambient temperature water path 220. Then, the flow rate of the second flow control component 222 is determined based on the power consumption of the water in the heating tank 211, the maximum power of the heating element 310, the temperature of the water flowing through the second water path 300, and the target outlet water temperature.

[0075] In a specific example, the power consumption Pr of the water in the hot tank 211 can be determined according to the following formula 1:

[0076] Pr=L1max*β*(Tobj-T1) / 60 Formula 1

[0077] Where L1max represents the maximum flow rate of the hot tank 211 pipeline, Tobj represents the target outlet water temperature, T1 represents the temperature of the water flowing through the hot tank water circuit 210, and β represents the unit conversion parameter, which can be taken as 4.2.

[0078] For ease of description, in the formulas above and below in this application, the unit of power is watt (W) and the unit of flow rate is milliliters per minute (ml / min).

[0079] After determining the power consumption of the water in the heating tank 211, the remaining power of the heating element 310 can actually be used entirely to heat the water input from the ambient temperature water circuit 220 into the heating element 310 to the target water temperature, so that the water outlet 120 of the water dispenser outputs water at the target outlet temperature.

[0080] The flow rate L2 of the second flow control component 222 can be determined according to the following formula 2.

[0081] L2=(Pmax-Pr)*60 / (Tobj-T2) / β Formula 2

[0082] Where Pmax represents the maximum power of heating element 310, Pr represents the power used by water in hot tank 211, Tobj represents the target outlet water temperature, T2 represents the temperature of water flowing through room temperature water circuit 220, and β represents the unit conversion parameter, which can be taken as 4.2.

[0083] In the above technical solution, the power consumption of the water in the heating tank 211 is determined based on the maximum flow rate of the first flow control component 212 and the maximum power of the heating element 310. Then, the flow rate of the second flow control component 222 is determined based on the power consumption of the water in the heating tank 211. This ensures that the water dispenser can efficiently output hot water at the target outlet temperature, provided that both the heating tank 211 and the heating element 310 function at their maximum capacity. Moreover, the method for determining the flow rate of the second flow control component 222 is simple and accurate.

[0084] In the first scenario, the first flow rate of the second flow control component 222 can be determined using the above-described scheme. The sum of the determined first flow rate and the maximum flow rate of the first flow control component 212 is the maximum water flow rate that the water dispenser can provide in the first scenario. In the first scenario, simultaneously controlling the water outlet of the hot tank water circuit 210 and the water outlet of the room temperature water circuit 220 can significantly improve the efficiency of low-temperature water output, and the water heating time of the hot tank 211 is relatively short, with less susceptibility to external interference.

[0085] For example, when the current water outlet mode is the first water outlet mode, the target water outlet temperature is 60℃, the first temperature threshold is 60℃, the maximum flow rate of the hot tank 211 pipeline is 1500ml / min, the temperature of the water flowing through the hot tank water circuit 210 is 45℃, the maximum power of the heating element 310 is 2100W, and the temperature of the water flowing through the ambient temperature water circuit 220 is 25℃, the target water outlet temperature equals the first temperature threshold, which is the first condition. The relevant parameters of the known formula 1 can be substituted into formula 1 to obtain the power consumption Pr of the water in the hot tank 211 at this time. In this case, the power consumption Pr of the water in the hot tank 211 = 1500 * 4.2 * (60 - 45) / 60 = 1575W. Then, the calculated power consumption Pr of the water in the hot tank 211 and other known relevant parameters from formula 2 are substituted into formula 2 to obtain the flow rate L2 of the second flow control component 222. In this case, the flow rate L2 of the second flow control component 222 is (2100-1575)*60 / (60-25) / 4.2 = 200ml / min. Under this condition, the total flow rate of water flowing into the heating element 310 can be 1700ml / min. This total flow rate is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature reaches the user's desired target water temperature.

[0086] For example, if the current water outlet mode is the first water outlet mode, the target water outlet temperature is 45℃, the first temperature threshold is 60℃, the maximum flow rate of the hot water tank 211 pipeline is 1500ml / min, the temperature of the water flowing through the hot water tank 210 is 45℃, the maximum power of the heating element 310 is 2100W, and the temperature of the water flowing through the ambient temperature water tank 220 is 25℃, then the target water outlet temperature equals the first temperature threshold, which is the first condition. The relevant parameters of the known formula 1 above can be substituted into formula 1 to obtain the power consumption Pr of the water in the hot water tank 211 at this time. In this case, the power consumption Pr of the water in the hot water tank 211 = 1500 * 4.2 * (45 - 45) / 60 = 0W. Because the target water outlet temperature is equal to the temperature of the water flowing through the hot water tank 210, the power of the heating element 310 does not need to be used to heat the water in the hot water tank 211 to the target water outlet temperature. Then, the calculated power consumption Pr of the water in the heating tank 211 and other known relevant parameters from Formula 2 are substituted into Formula 2 to obtain the flow rate L2 of the second flow control component 222. In this case, the flow rate L2 of the second flow control component 222 is L2 = (2100-0)*60 / (45-25) / 4.2 = 1500ml / min. In this case, the total water flow rate into the heating element 310 can be 3000ml / min, which is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature of the water dispenser reaches the user's desired target water temperature.

[0087] In the above technical solution, when the current water outlet mode is the first water outlet mode among multiple water outlet modes, and the target water outlet temperature is higher than the preheating temperature in the heating tank 211 under the first water outlet mode but lower than or equal to the first temperature threshold, the first flow control component 212 is controlled to operate at the maximum flow rate; the heating element 310 is controlled to operate at the maximum power; based on the maximum power of the heating element 310, the maximum flow rate of the first flow control component 212, and the target water outlet temperature, the first flow rate of the second flow control component 222 is determined, so as to control the second flow control component 222 accordingly. This allows the heating tank 211 and the heating element 310 to be used to their fullest potential under the above conditions, providing drinking water to the user at the maximum flow rate while ensuring that the source water entering the water dispenser's inlet 110 is heated to the target water outlet temperature.

[0088] When the current water outlet mode is the second of multiple water outlet modes, and the target water outlet temperature is higher than the first temperature threshold, it can be considered as being in the third situation. In the second water outlet mode, the preheating temperature of the heating tank 211 is equal to or higher than the first temperature threshold. For example, the above control operation also includes the following operations: in the third situation, control the first flow control component 212 to operate at the maximum flow rate; control the heating element 310 to operate at the maximum power; determine the first flow rate of the second flow control component 222 based on the maximum power of the heating element 310, the maximum water flow rate of the heating tank water path 210, the preheating temperature of the heating tank 211 in the second water outlet mode, the temperature of the water flowing through the ambient temperature water path 220, and the target water outlet temperature, and control the second flow control component 222 based on the first flow rate.

[0089] In the third scenario, the preheating temperature of the hot tank 211 is high, and the target outlet water temperature is also high. When the water in the hot tank 211 reaches the preheating temperature, the temperature difference between the water in the hot tank 211 and the water temperature in the ambient temperature water circuit 220, and the target outlet water temperature, is small. Therefore, the water flow rate in the hot tank water circuit 210 can be controlled to the maximum, and the heating element 310 can be controlled to operate at maximum power to improve heating efficiency. After determining the first flow rate, the second flow control component 222 can be controlled to adjust the water flow rate in the ambient temperature water circuit 220 to the first flow rate. At this time, the water flow rate flowing into the heating element 310 is the sum of the first flow rate and the water flow rate in the hot tank water circuit 210. When the first flow control component 212 operates at the maximum flow rate, the water flow rate in the hot tank water circuit 210 will be adjusted to the maximum water flow rate.

[0090] The control operations described above have already been detailed in the relevant description of the first case, and will not be repeated here for the sake of brevity.

[0091] For example, if the current water outlet mode is the second water outlet mode, the target water outlet temperature is 95℃, the first temperature threshold is 60℃, the maximum flow rate of the hot tank 211 pipeline is 1500ml / min, the temperature of the water flowing through the hot tank water circuit 210 is 85℃, the maximum power of the heating element 310 is 2100W, and the temperature of the water flowing through the ambient temperature water circuit 220 is 25℃, the target water outlet temperature is higher than the first temperature threshold, and this is the third case. The known parameters of Formula 1 can be substituted into Formula 1 to obtain the power consumption Pr of the water in the hot tank 211 at this time. In this case, the power consumption Pr of the water in the hot tank 211 = 1500 * 4.2 * (95 - 85) / 60 = 1050W. Then, the calculated power consumption Pr of the water in the hot tank 211 and other known parameters from Formula 2 are substituted into Formula 2 to obtain the flow rate L2 of the second flow control component 222. In this case, the flow rate L2 of the second flow control component 222 is (2100-1050)*60 / (95-25) / 4.2 = 200ml / min. Under this condition, the total flow rate of water flowing into the heating element 310 can be 1700ml / min. This total flow rate is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature reaches the user's desired target water temperature.

[0092] For example, if the current water outlet mode is the second water outlet mode, the target water outlet temperature is 80℃, the first temperature threshold is 60℃, the maximum flow rate of the hot tank 211 pipeline is 1500ml / min, the temperature of the water flowing through the hot tank water circuit 210 is 85℃, the maximum power of the heating element 310 is 2100W, and the temperature of the water flowing through the ambient temperature water circuit 220 is 25℃, then the target water outlet temperature is higher than the first temperature threshold, which falls under the third case. The relevant parameters of the known formula 1 above can be substituted into formula 1 to obtain the power consumption Pr of the water in the hot tank 211 at this time. In this case, the power consumption Pr of the water in the hot tank 211 is Pr = 1500 * 4.2 * (80 - 85) / 60 = 0W. Because the target temperature is lower than the temperature of the water flowing through the hot tank water circuit 210, the power of the heating element 310 does not need to be used to heat the water in the hot tank 211 to the target water outlet temperature. Then, the calculated power consumption Pr of the water in the heating tank 211 and other known relevant parameters from Formula 2 are substituted into Formula 2 to obtain the flow rate L2 of the second flow control component 222. In this case, the flow rate L2 of the second flow control component 222 is (2100-0)*60 / (85-25) / 4.2 = 500ml / min. In this case, the total water flow rate flowing into the heating element 310 can be 2000ml / min. This total water flow rate is the maximum water flow rate that the water dispenser can provide at this time, which can ensure that the water temperature of the water dispenser reaches the user's desired target water temperature.

[0093] In the above technical solution, when the current water outlet mode is the second of multiple water outlet modes and the target water outlet temperature is higher than the first temperature threshold, the first flow control component 212 is controlled to operate at maximum flow rate, and the heating element 310 is controlled to operate at maximum power. Based on the maximum power of the heating element 310 and the maximum flow rate of the hot water tank 210, the flow rate of the second flow control component 222 is determined, thereby controlling the second flow control component 222. This allows the water outlet 120 of the water dispenser to output water at a higher target water outlet temperature while also outputting a larger water flow rate under the above conditions, thereby improving the efficiency of the water dispenser in outputting water at the target water outlet temperature.

[0094] When the current water outlet mode is the first of multiple water outlet modes, and the target water outlet temperature is higher than the first temperature threshold, it can be considered to be in the second case. For example, the above control operation also includes the following operations: in the second case, controlling the second flow control component 222 to disconnect the ambient temperature water path 220; controlling the heating element 310 to operate at maximum power; determining the second flow rate of the first flow control component 212 based on the maximum power of the heating element 310, the temperature of the water flowing through the hot water path 210, and the target water outlet temperature; and controlling the first flow control component 212 based on the second flow rate to ensure that the hot water path 210 has a water flow at the second flow rate. The second flow rate of the first flow control component 212 is the desired water flow rate of the hot water path 210.

[0095] When the target outlet water temperature is equal to or higher than the first temperature threshold, it indicates that the user expects the water temperature output from outlet 120 to be higher. However, because the preheating temperature of the heating tank 211 in the first outlet mode is low, the maximum power of the heating element 310 may not be sufficient to heat both the water flowing into the heating element 310 from the room temperature water path 220 and the water flowing into the heating element 310 from the heating tank water path 210 to the target outlet water temperature in time. Therefore, the second flow control component 222 can be controlled to disconnect the room temperature water path 220, and only the water flowing into the heating element 310 from the heating tank water path 210 into the second water path 300 will be heated to ensure that the water provided by the water dispenser can reach the target outlet water temperature.

[0096] Understandably, when the power of the heating element 310 is limited, and the target outlet water temperature is high, the flow rate in the hot water tank circuit 210 can be controlled to ensure that the heating element 310 heats the water flowing through it to the target outlet water temperature in a timely manner. In this case, the heating power of the heating element 310 is used to heat the water from the hot water tank circuit 210 to the target outlet water temperature. The second flow rate of the first flow control component 212 can be determined based on the relationship between the maximum power of the heating element 310, the temperature of the water flowing through the hot water tank circuit 210, the target outlet water temperature, and the second flow rate, and the first flow control component 212 can be controlled according to the second flow rate. In the first case, controlling only the water outlet of the hot water tank circuit 210 can improve the efficiency of high-temperature water output.

[0097] In a specific example, the flow rate L1 of the first flow control component 212, i.e. the second flow rate mentioned above, can be determined by the following formula 3.

[0098] L1 = Pmax * 60 / (Tobj - T1) / β (Formula 3)

[0099] Where Pmax represents the maximum power of the heating element 310, T1 represents the temperature of the water flowing through the hot water tank 210, Tobj represents the target outlet water temperature, and β represents the unit conversion parameter.

[0100] Understandably, when the water dispenser is in the first water dispensing mode and the target water temperature is low, water can be dispensed simultaneously from both the ambient temperature water circuit 220 and the hot water circuit 210, with the heating element 310 operating at maximum power, so that the water dispenser's outlet 120 outputs a larger quantity of water at the target temperature. When the water dispenser is in the first water dispensing mode and the target water temperature is high, water can be dispensed only from the hot water circuit 210, with the heating element 310 operating at maximum power, to ensure that the water dispenser's outlet 120 outputs water at a sufficiently high temperature.

[0101] For example, if the current water dispensing mode is the first dispensing mode, the target water temperature is 80℃, the first temperature threshold is 60℃, the temperature of the water flowing through the hot water tank 210 is 45℃, and the maximum power of the heating element 310 is 2100W, the target water temperature is higher than the first temperature threshold, and this is the second case. The relevant parameters of the known formula 3 can be substituted into formula 3 to obtain the flow rate L1 of the first flow control component 212 at this time. In this case, the flow rate L1 of the first flow control component 212 = 2100*60 / (80-45) / 4.2 = 800ml / min. In this case, the heating element 310 can heat water from the hot water tank 210 at a flow rate of 800ml / min. This flow rate is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature reaches the user's desired target water temperature.

[0102] In the above technical solution, when the target outlet water temperature is higher than the first temperature threshold and the current outlet water mode is the first outlet water mode, the second flow control component 222 is controlled to disconnect the ambient temperature water path 220; and the heating element 310 is controlled to heat the water from the hot tank water path 210 at maximum power. This can maximize the water output efficiency while ensuring the outlet water temperature when the user needs higher temperature water and the preheating temperature of the hot tank 211 is low.

[0103] When the current water outlet mode is the second water outlet mode, and the target water outlet temperature is lower than or equal to the first temperature threshold, it can be considered to be in the fourth case. For example, the above control operation may also include the following operations: in the fourth case, controlling the first flow control component 212 to disconnect the hot water tank circuit 210; controlling the heating element 310 to operate at maximum power; determining the third flow rate of the second flow control component 222 based on the maximum power of the heating element 310, the water temperature in the ambient temperature water circuit 220, and the target water outlet temperature, and controlling the second flow control component 222 according to the third flow rate.

[0104] When the target outlet water temperature is lower than or equal to the first temperature threshold, it indicates that the user expects the water temperature output from outlet 120 to be lower. However, because the preheating temperature of the heating tank 211 in the second outlet mode is higher, the preheated water flowing into the heating element 310 from the heating tank 211 may still have a temperature higher than the target outlet water temperature. Therefore, the second flow control component 222 can be used to disconnect the heating tank water path 210, heating only the water flowing into the heating element 310 from the ambient temperature water path 220, thus preventing the water temperature flowing out of the heating element 310 from exceeding the target outlet water temperature. The third flow rate of the second flow control component 222 is the expected water flow rate of the ambient temperature water path 220, determined based on the target outlet water temperature.

[0105] Understandably, when the power of the heating element 310 is limited, the flow rate in the ambient temperature water path 220 can be controlled to ensure that the heating element 310 heats the water from the ambient temperature water path 220 to the target outlet temperature in a timely manner. In this case, the heating power of the heating element 310 is used entirely to heat the water from the ambient temperature water path 220 to the target outlet temperature. The third flow rate of the second flow control component 222 can be determined based on the relationship between the maximum power of the heating element 310, the temperature of the water flowing through the ambient temperature water path 220, the target outlet temperature, and the third flow rate.

[0106] In a specific example, the flow L2 of the second flow control component 222, i.e. the third flow mentioned above, can be determined by the following formula 4.

[0107] L2 = Pmax * 60 / (Tobj - T2) / β (Formula 4)

[0108] Where Pmax represents the maximum power of heating element 310, T2 represents the temperature of the water flowing through room temperature water circuit 220, Tobj represents the target outlet water temperature, and β represents the unit conversion parameter.

[0109] For example, when the current water outlet mode is the second water outlet mode, the target water outlet temperature is 45℃, the first temperature threshold is 60℃, the temperature of the water flowing through the ambient temperature water path 220 is 25℃, and the maximum power of the heating element 310 is 2100W, the target water outlet temperature and the first temperature threshold are in the fourth case. The relevant parameters of the known formula 4 above can be substituted into formula 4 to obtain the flow rate L2 of the second flow control component 222 at this time. In this case, the flow rate L2 of the second flow control component 222 = 2100*60 / (45-25) / 4.2 = 1500ml / min. In this case, the heating element 310 can heat the water from the ambient temperature water path 220 at a flow rate of 1500ml / min, ensuring that the water outlet temperature of the water dispenser reaches the user's desired target water outlet temperature.

[0110] Understandably, when the water dispenser is in the second water dispensing mode and the target water temperature is high, water can be dispensed simultaneously from both the ambient temperature water circuit 220 and the hot water circuit 210, with the heating element 310 operating at maximum power to ensure that the water dispenser's outlet 120 outputs a larger quantity of water at the target temperature. When the water dispenser is in the second water dispensing mode and the target water temperature is low, water can be dispensed only from the ambient temperature water circuit 220, while the heating element 310 still operates at maximum power to ensure that the water dispenser's outlet 120 outputs water at a sufficiently high temperature.

[0111] In the above technical solution, when the current water outlet mode is the second water outlet mode and the target water outlet temperature is lower than the first temperature threshold, the first flow control component 212 is controlled to disconnect the hot water circuit 210; the heating element 310 is controlled to operate at maximum power; and the third flow rate of the second flow control component 222 is determined based on the maximum power of the heating element 310. This ensures that the water outlet temperature is at the target water outlet temperature when the user needs lower temperature water in the second water outlet mode where the preheating temperature of the hot tank 211 is high, and maximizes the water outlet efficiency.

[0112] In an alternative example, the heating element 310 can operate at non-maximum power under any circumstances to heat the water flow from the ambient temperature water path 220 and / or the hot tank water path 210. If so, the first flow component and / or the second flow component can be controlled so that the heating element 310 can heat the flowing water to the target outlet temperature.

[0113] Refer again Figure 2For example, a first temperature sensor 215 is provided inside the hot tank 211 to detect the temperature of the water inside the hot tank 211, so as to serve as the temperature of the water flowing through the hot tank water path 210.

[0114] The hot water circuit 210 includes a hot water tank 211 and a water circuit section connected to the hot water tank 211. A first temperature sensor 215 can be installed inside the hot water tank 211 to detect the temperature of the water inside. The temperature detected by the first temperature sensor 215 can be used as the basis for heating by the first heating device 213. When the temperature detected by the first temperature sensor 215 has not reached the preheating temperature of the hot water tank 211, the first heating device 213 can be controlled to heat the water to raise the temperature of the water stored in the hot water tank 211. When the temperature detected by the first temperature sensor 215 has reached the preheating temperature of the hot water tank 211, the first heating device 213 can be controlled to stop heating to prevent the water temperature stored in the hot water tank 211 from becoming too high. It can be understood that, to avoid overheating, the first heating device 213 can be controlled to heat the water only when the temperature of the water stored in the hot water tank 211 is slightly lower than the preheating temperature. In a specific example, the preheating temperature is 45 degrees Celsius. When the temperature detected by the first temperature sensor 215 is below 40 degrees Celsius, the first heating device 213 can be controlled to heat the water stored in the hot water tank 211 to raise the temperature. When the temperature detected by the first temperature sensor 215 has reached 45 degrees Celsius, the first heating device 213 can be controlled to stop heating.

[0115] The temperature of the water in the hot tank 211 detected by the first temperature sensor 215 can be used as the temperature of the water flowing through the hot tank water path 210, because it is the temperature of the water that has already been heated by the first heating device 213. In particular, when the water path between the hot tank 211 and the inlet of the second water path 300 is short, the water flow will not drop much after flowing out of the hot tank 211. Therefore, the temperature detected by the first temperature sensor 215 can be used as the water temperature at the outlet of the hot tank water path 210.

[0116] In the above technical solution, a first temperature sensor 215 installed inside the heating tank 211 is used to detect the temperature of the water flowing through the water path 210 of the heating tank. Therefore, only one temperature sensor is needed to control the preheating process of the heating tank 211 and detect the temperature of the water flowing through the water path 210, thereby executing the aforementioned control operations. This effectively reduces the cost of the water dispenser.

[0117] Alternatively, refer to again Figure 2A third temperature sensor 214 is installed at the outlet 120 of the hot tank water passage 210 to detect the temperature of the water flowing through it. It is understood that the water flowing in the hot tank water passage 210 downstream of the hot tank 211 is preheated, and its temperature is higher than the ambient temperature. As this water flows through the passage, temperature decay is inevitable, especially when the water passage between the hot tank 211 and the inlet of the second water passage 300 is long. To avoid temperature decay in the water passage, it is preferable to install the third temperature sensor 214 at the outlet 120 of the hot tank water passage 210, and use the temperature detected by the sensor as the temperature of the water flowing through the hot tank water passage 210.

[0118] In the above technical solution, a third temperature sensor 214 is installed at the outlet 120 of the hot tank water circuit 210 to detect the temperature of the water flowing through the hot tank water circuit 210. By installing a temperature sensor at the outlet 120 of the hot tank water circuit 210 to detect the water temperature of the hot tank water circuit 210, the initial temperature of the water entering the heating element 310 can be determined more accurately, thereby more accurately controlling the water flow rate of the ambient temperature water circuit 220 or the hot tank water circuit 210.

[0119] For example, the water dispenser's multiple water dispensing modes also include an energy-saving mode. In energy-saving mode, the first heating device 213 in the hot water tank 211 is deactivated, resulting in lower energy consumption for the water dispenser. It can be understood that deactivating the first heating device 213 in the hot water tank 211 effectively disables the preheating function of the hot water tank 211. The aforementioned control operations include the following: when the current water dispensing mode is the energy-saving mode among the multiple water dispensing modes, controlling the first flow control component 212 to disconnect the hot water tank water path 210; controlling the heating element 310 to operate at maximum power; determining the fourth flow rate of the second flow control component 222 based on the maximum power of the heating element 310, the temperature of the water flowing through the ambient temperature water path 220, and the target water dispensing temperature, and controlling the second flow control component 222 based on the fourth flow rate.

[0120] If the preheating function of the heating tank 211 is activated, the first heating element will continuously heat the water in the heating tank 211 until the water stored in the heating tank 211 reaches the preheating temperature. This continuous heating increases the energy consumption of the water dispenser. Therefore, in energy-saving mode, the preheating function of the heating tank 211 can be turned off, resulting in room temperature water flowing out of the heating tank water path 210 instead of preheated water. In energy-saving mode, the first flow control component 212 can be controlled to disconnect the heating tank water path 210, heating only the water flowing into the heating element 310 from the room temperature water path 220. In energy-saving mode, the control operations for the heating element 310 and the second flow control component 222 are similar to the corresponding control operations in the fourth case described above; for simplicity, they will not be elaborated further here.

[0121] For example, if the current water dispensing mode is energy-saving mode, the target water temperature is 45℃, the first temperature threshold is 60℃, the temperature of the water flowing through the ambient temperature water path 220 is 25℃, and the maximum power of the heating element 310 is 2100W, then according to formula 4 above, the fourth flow rate of the second flow control component 222 is 1500ml / min. In this case, the heating element 310 can heat the water from the ambient temperature water path 220 at a flow rate of 1500ml / min. This flow rate is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature of the water dispenser reaches the user's desired target water temperature.

[0122] For example, if the current water dispensing mode is energy-saving mode, the target water temperature is 80℃, the first temperature threshold is 60℃, the temperature of the water flowing through the ambient temperature water path 220 is 25℃, and the maximum power of the heating element 310 is 2100W, then according to formula 4 above, the fourth flow rate of the second flow control component 222 is 500ml / min. In this case, the heating element 310 can heat the water from the ambient temperature water path 220 at a flow rate of 500ml / min. This flow rate is the maximum water flow rate that the water dispenser can provide at this time, ensuring that the water temperature of the water dispenser reaches the user's desired target water temperature.

[0123] In the above technical solution, when the current water dispensing mode is the energy-saving mode among multiple water dispensing modes, the preheating function of the hot water tank 211 is turned off, and the first flow control component 212 is controlled to disconnect the hot water tank water circuit 210; the heating element 310 is controlled to heat the water flow from the room temperature water circuit 220 at maximum power. This can effectively reduce the energy consumption of the water dispenser, while still ensuring the target water dispensing temperature and maximizing the water dispensing efficiency.

[0124] For example, the multiple water outlet modes include the first water outlet mode, the second water outlet mode, and the energy-saving mode described above.

[0125] The control component 400 is also used to perform the following operations: When the water dispenser is operating in smart mode, it calculates the first duration for dispensing water at a target outlet temperature less than or equal to a first temperature threshold and the second duration for dispensing water at a target outlet temperature greater than the first temperature threshold in each time interval within the current time period, using a preset time cycle. For each time interval, if the first duration is greater than the second duration, the water dispenser is controlled to operate in the first water dispensing mode in the corresponding time interval of the next time cycle. If the second duration is greater than the first duration, or if the first duration is equal to the second duration and not 0, the water dispenser is controlled to operate in the second water dispensing mode in the corresponding time interval of the next time cycle. If both the first and second durations are 0, the water dispenser is controlled to operate in energy-saving mode in the corresponding time interval of the next time cycle. As mentioned above, in the first water dispensing mode, the preheating temperature of the water in the heating tank 211 is lower than the first temperature threshold, and in the second water dispensing mode, the preheating temperature of the water in the heating tank 211 is equal to or higher than the first temperature threshold.

[0126] When the water dispenser is in smart mode, it can automatically adjust the water dispensing mode. The preset time period includes at least one time interval. The preset time period and the time intervals within it can be preset before leaving the factory, or set by the user as needed after the water dispenser leaves the factory. For example, the preset time period can be 24 hours. Each time interval can be 4 hours.

[0127] When the water dispenser is in smart mode, it can analyze user habits in each time interval within the current preset time period. For example, it can calculate the first time spent taking water at a target outlet temperature less than or equal to a first temperature threshold and the second time spent taking water at a target outlet temperature greater than the first temperature threshold. The first time represents the time spent by the user taking cold water from the dispenser within a single time interval, and the second time represents the time spent by the user taking hot water from the dispenser within a single time interval.

[0128] Understandably, for each time interval of the current preset time period, if the first duration is longer than the second duration, it indicates that users prefer to take cold water from the water dispenser during that time interval. Therefore, the first water dispensing mode can be used as the water dispensing mode for that time interval in the next preset time period to improve the water dispensing efficiency of the water dispenser in that time interval of the next preset time period. If the second duration is longer than the first duration, or the first duration is equal to the second duration and not zero, it indicates that users prefer to take hot water from the water dispenser during that time interval. Therefore, the second water dispensing mode can be used as the water dispensing mode for that time interval of the next preset time period to improve the water dispensing efficiency of the water dispenser in that time interval of the next preset time period. If both the first and second durations are zero, it indicates that users will basically not take water from the water dispenser during that time interval. Therefore, the energy-saving mode can be used as the water dispensing mode for that time interval of the next preset time period to reduce the energy consumption of the water dispenser in that time interval of the next preset time period.

[0129] In a specific example, the preset time period is 24 hours. Each time interval is 4 hours long. For example, on a certain day, statistics show that in the two time intervals from 0:00 AM to 8:00 AM, both the first and second durations are 0. In the three time intervals from 8:00 AM to 8:00 PM, the first duration is longer than the second duration. In the time interval from 8:00 PM to midnight, the second duration is longer than the first duration. Therefore, on the next day, in the two time intervals from 0:00 AM to 8:00 AM, the water dispenser will be controlled to operate in energy-saving mode. In the three time intervals from 8:00 AM to 8:00 PM, the water dispenser will be controlled to operate in the first water dispensing mode. In the time interval from 8:00 PM to midnight, the water dispenser will be controlled to operate in the second water dispensing mode.

[0130] In the above technical solution, the control component 400 enables the water dispenser to record the first and second durations within each time interval of the current time cycle. Based on the magnitude of the first and second durations, the water dispensing mode of the water dispenser in the same time interval of the next cycle is determined. By recording the user's usage habits in each time interval and entering a water dispensing mode that matches the user's habits in the next time cycle, the water dispensing efficiency of the water dispenser in the corresponding time interval can be improved more accurately, enhancing the intelligence of the water dispenser and thus improving the user experience.

[0131] For example, refer again Figure 2 The water dispenser is also equipped with a receiving component 500 for receiving user commands. The control component 400 is also used to determine the current water dispensing mode based on the user's commands.

[0132] The receiving component 500 may include a communication component that can receive instructions sent by a user via a computer, smart mobile device, or similar means. For example, a computer or smart mobile device may have an application installed for controlling the water dispenser, allowing the user to input relevant instructions via the application and send them through the communication component. The communication component on the water dispenser can receive these user instructions. Alternatively, the receiving component 500 may include an input device, such as function buttons on the water dispenser. The user can use this input device to input their instructions. The control component 400 of the water dispenser can control the components in the water dispenser according to the user instructions received by the receiving component 500, so that the water outlet 120 of the water dispenser outputs water at the target outlet temperature.

[0133] In the above technical solution, the water dispenser is equipped with a receiving component 500 for receiving instructions sent by the user, and a control component 400 for determining the current water dispensing mode based on the instructions. Through the combined use of the receiving component 500 and the control component 400, the water dispenser can adjust according to the user's needs, thereby outputting water at the target temperature required by the user.

[0134] For example, the first flow control component 212 is a water pump. The second flow control component 222 is a controllable valve. A flow detection sensor 320 is also provided on the second water passage 300 or the ambient temperature water passage 220. Figure 2 The flow detection sensor 320 is shown to be installed on the second water passage 300. The flow detection sensor 320 is used to detect the flow rate of water. The control component 400 controls the second flow control component 222 to control the water flow rate of the ambient temperature water passage 220 by performing the following operations: controlling a controllable valve according to the detected water flow rate to control the water flow rate of the ambient temperature water passage 220.

[0135] The first flow control component 212 is used to control the flow rate of the hot tank water circuit 210. The water pump, which serves as the first flow control component 212, is a power unit that facilitates smooth control of the water flow out of the hot tank 211. Furthermore, the water pump can control the water flow rate of the hot tank water circuit 210 relatively accurately. For example, the water flow rate can be controlled by adjusting the pulse width modulation signal input to the water pump.

[0136] Controllable valves are less expensive but may lack sufficient accuracy. The flow detection sensor 320 can be any suitable flow detection sensor, such as a differential pressure flow detection sensor 320, a rotor flow detection sensor 320, a throttling flow detection sensor 320, an electromagnetic flow detection sensor 320, etc. The flow detection sensor 320 can be installed between the heating element 310 of the second water path 300 and the first water path 200, at any position on the second water path 300, or at any position on the ambient temperature water path 220, to detect the water flow in the pipe at that location. In a specific example, the flow sensor detects the water flow using the Hall effect sensing principle. In the example where the flow detection sensor 320 is installed on the second water path 300, because the water pump can accurately control the water flow in the heated tank water path 210, the water flow in the ambient temperature water path 220 can be determined based on the difference between the flow detection sensor 320 and the water flow in the heated tank water path 210. After determining the relationship between the opening degree of the controllable valve and the flow rate using the second flow control component 222, directly controlling the controllable valve based on this information may result in insufficient flow accuracy due to variations in water pressure and temperature within the ambient temperature water path 220. Consequently, the measured water flow may not reach the target outlet temperature. Therefore, the controllable valve can be adjusted more precisely based on the second flow control component 222 to control the water flow rate in the ambient temperature water path 220.

[0137] In the above technical solution, the first flow control component 212 is a water pump, ensuring the smooth flow of water from the hot water tank 211, and its control accuracy is also high. The second flow control component 222 is a controllable valve, which consumes almost no electricity, thus reducing the energy consumption of the water dispenser, and its cost is low. The control component 400 can control the controllable valve more precisely while maintaining high accuracy in the flow control of the water pump. This ensures a more accurate water temperature output from the water dispenser outlet 120.

[0138] For example, such as Figure 2 As shown, a fourth temperature sensor 121 is installed at the water outlet 120 to detect the temperature of the water output from the water outlet 120. The control operation also includes: when the heating element 310 operates at maximum power and the temperature of the water output from the water outlet 120 is not equal to the target water temperature, controlling the second flow control component 222 to adjust the water flow rate of the ambient temperature water path 220.

[0139] Due to inherent errors in electronic components, when the heating element 310 operates at maximum power, the temperature of the water output from the outlet 120 may not equal the target outlet temperature. In this case, based on the water temperature detected at the outlet 120, the second flow control component 222 can be controlled to further adjust the water flow rate of the ambient temperature water path 220. When the water temperature output from the outlet 120 is higher than the target outlet temperature, the water flow rate of the ambient temperature water path 220 and / or the hot water path 210 can be increased. When the water temperature output from the outlet 120 is lower than the target outlet temperature, the water flow rate of the ambient temperature water path 220 and / or the hot water path 210 can be decreased.

[0140] In the above technical solution, when the temperature of the water output from outlet 120 differs from the target water temperature and the heating element 310 operates at maximum power, the water flow rate of the ambient temperature water path 220 and / or the hot water path 210 can be adjusted. By utilizing the actual temperature of the water output from outlet 120, the water flow rate of the ambient temperature water path 220 and / or the hot water path 210 can be further controlled in a closed loop, making the temperature of the water output from outlet 120 of the water dispenser closer to the target water temperature.

[0141] As mentioned above, a first temperature sensor 215 may be installed inside the hot tank 211 to detect the temperature of the water inside the hot tank 211. Exemplarily, the control operation includes: when the temperature of the water inside the hot tank 211 is lower than a preset threshold temperature, controlling the first flow component to disconnect the water circuit 210 of the hot tank, and controlling the heating element 310 to heat the water flowing through the heating element 310 according to the target outlet water temperature.

[0142] The preset threshold temperature can be set before leaving the factory or set by the user after the water dispenser leaves the factory according to their needs. When the temperature of the water in the heating tank 211 is lower than the preset threshold temperature, it means that the temperature of the water in the heating tank 211 has not reached the temperature required for normal water dispensing. Compared to the water temperature in the heating tank 211 reaching the heating threshold temperature, the water temperature in the heating tank 211 being lower than the heating threshold temperature will result in a lower initial temperature of the water entering the heating element 310. Since the maximum power of the heating element 310 is fixed, the water flow rate entering the heating element 310 can be reduced by decreasing the water dispensing efficiency to ensure that the water outlet 120 outputs water at the target outlet temperature. The first flow component can be controlled to disconnect the water circuit 210 of the heating tank, at which point the water flowing through the heating element 310 only includes the water flowing in from the room temperature water circuit 220. Then, the heating element 310 is controlled to heat the water flowing through it according to the target outlet temperature.

[0143] In the above technical solution, when the temperature of the water in the heating tank 211 is lower than the preset threshold temperature, the first flow component is controlled to disconnect the water circuit 210 of the heating tank, and the heating element 310 is controlled to heat the water from the room temperature water circuit 220 according to the target outlet water temperature. This can avoid the negative impact of the water in the heating tank 211 not reaching the preset threshold temperature on the water dispenser, and ensure that the water output is at the target outlet temperature.

[0144] For example, refer again Figure 2 A water level sensor 216 is installed inside the heating tank 211 to detect the water level inside the heating tank 211. The control operation also includes: when the water level inside the heating tank 211 does not reach the preset water level, controlling the first flow component to disconnect the water circuit 210 of the heating tank, and controlling the heating tube 310 to heat the water flowing through the heating tube 310 according to the target outlet water temperature.

[0145] The preset water level can be set before the water dispenser leaves the factory or set by the user according to their needs after the water dispenser leaves the factory. When the water level in the heating tank 211 does not reach the preset water level, it indicates that the water level in the heating tank 211 is too low. If water is still allowed to flow from the heating tank water passage 210 at this time, it may cause the first heating device 213 to burn dry and be damaged. Therefore, the first flow component can be controlled to disconnect the heating tank water passage 210. At this time, water can be added to the heating tank 211 so that the water level in the heating tank 211 reaches the preset working water level. After the water level in the heating tank 211 reaches the preset working water level, the first flow component can be controlled again to open the heating tank water passage 210 according to actual needs.

[0146] As mentioned earlier, when the hot water circuit 210 is disconnected, the ambient temperature water circuit 220 can continuously supply water to the heating element 310. The heating element 310 can be controlled to heat the water flowing through it according to the target outlet water temperature, so that the water dispenser outputs water at the target outlet water temperature.

[0147] In the above technical solution, when the water level in the hot tank 211 does not reach the preset water level, the first flow component is controlled to disconnect the water circuit 210 of the hot tank, and the heating element 310 is controlled to heat the water from the room temperature water circuit 220 according to the target outlet water temperature. This can prevent the first heating device 213 from working when the water level in the hot tank 211 is too low, which can improve the safety of the water dispenser.

[0148] For example, the above control operation includes the following operations: when the target outlet water temperature is lower than the preheating temperature of the water in the hot tank 211, the first flow control component 212 is controlled to disconnect the hot tank water circuit 210, and the heating tube 310 is controlled to heat the water flowing through the heating tube 310 according to the target outlet water temperature.

[0149] When the target outlet water temperature is lower than the preheating temperature of the water in the heating tank 211, it indicates that the target outlet water temperature is too low. If water from the heating tank 211 is then output to the heating element 310, the temperature of the water flowing from the water dispenser's outlet 120 may exceed the target outlet water temperature. Therefore, the first flow control component 212 can be controlled to disconnect the water circuit 210 in the heating tank, thereby avoiding the aforementioned problem.

[0150] As mentioned earlier, when the hot water circuit 210 is disconnected, the ambient temperature water circuit 220 can continuously supply water to the heating element 310. The heating element 310 can be controlled to heat the water flowing through it according to the target outlet water temperature.

[0151] In the above technical solution, when the target outlet water temperature is lower than the preheating temperature of the water in the heating tank 211, the first flow control component 212 is controlled to disconnect the water circuit 210 of the heating tank, and the heating element 310 is controlled to heat the water flowing through the heating element 310 according to the target outlet water temperature. This ensures that the water flowing out of the water outlet 120 of the water dispenser is at the target outlet water temperature by controlling the first flow control component 212 to disconnect the water circuit 210 of the heating tank.

[0152] According to another aspect of the embodiments of this application, a control method for a water dispenser is also provided. This control method can be executed by the control component 400 of the water dispenser described above. As mentioned above, the water dispenser includes an inlet 110 and an outlet 120. The water dispenser also includes a control component 400, and a first water path 200 and a second water path 300 connected in series along the water flow direction between the inlet 110 and the outlet 120. The first water path 200 includes a hot water path 210 and a room temperature water path 220 connected in parallel. A hot water path 210 is provided with a hot water tank 211 and a first flow control component 212 arranged in sequence along the water flow direction. A first heating device 213 for heating the water in the hot water tank 211 is provided inside the hot water tank 211. A heating element 310 is provided on the second water path 300, and the heating element 310 is used to heat the water flowing through the heating element 310. The control method includes: performing a control operation based on the target outlet water temperature to output water at the target outlet water temperature through the outlet 120, wherein the control operation includes controlling the first flow control component 212 to control the water flow rate of the hot tank water circuit 210, and controlling the heating tube 310 to heat the water flowing through the heating tube 310.

[0153] Figure 3 A schematic flowchart of a control method for a water dispenser according to an embodiment of the present invention is shown.

[0154] like Figure 3 As shown, after determining that the user has started taking water, the target water temperature expected by the user can be determined, and the current water output mode can be determined.

[0155] When the water dispenser is in energy-saving mode, the first heating device 213 of the hot water tank 211 will be turned off to disable the preheating function of the hot water tank 211, and the hot water circuit 210 will be disconnected. The second flow control component 222 can be used to control the water output from the room temperature water circuit 220 according to the third flow control mentioned above.

[0156] When the water dispenser is in the first water dispensing mode, the first heating device 213 can preheat the water in the hot water tank 211 to the preheating temperature of 45℃ corresponding to the first water dispensing mode. When the temperature difference between the water in the hot water tank 211 and the preheating temperature of 45℃ in the first water dispensing mode is greater than the second temperature difference threshold, the first heating device 213 is activated to heat the water and increase its temperature in the hot water tank 211. Figure 3 In the illustrated embodiment, the second temperature difference threshold is 5 degrees Celsius. When the water temperature in the heating tank 211 is lower than or equal to 40 degrees Celsius, the first heating device 213 is activated for heating. Heating is stopped when the water temperature in the heating tank 211 reaches 45 degrees Celsius to maintain a constant temperature. Then, it is determined whether the water level in the heating tank 211 has reached a preset water level. If the water level in the heating tank 211 has not reached the preset water level, the heating tank water circuit 210 is disconnected, and only the ambient temperature water circuit 220 is controlled to output water. The water output from the ambient temperature water circuit 220 is input to the heating tube 310, which heats the water flowing through it to ensure that the outlet 120 outputs water at the target outlet temperature. When the water level in the heating tank 211 reaches the preset water level, it is determined whether the water temperature in the heating tank 211 has reached the preset threshold temperature of 40 degrees Celsius. If the water temperature in the heating tank 211 has not reached 40 degrees Celsius, the heating tank water circuit 210 is disconnected, and only the ambient temperature water circuit 220 is controlled to output water. Water from the ambient temperature water circuit 220 is input into the heating element 310. The heating element 310 heats the water flowing through it to ensure that water at the target outlet temperature is output from the outlet 120. When the water temperature in the heating tank 211 reaches 40°C, it is determined whether the target outlet temperature is higher than a first temperature threshold, i.e., whether the target outlet water is high-temperature water or low-temperature water. If the target outlet temperature is higher than the first temperature threshold (i.e., high-temperature water), the ambient temperature water circuit 220 is disconnected, and only the heating tank water circuit 210 is controlled to output water. Water from the heating tank water circuit 210 is input into the heating element 310. The heating element 310 heats the water flowing through it to ensure that water at the target outlet temperature is output from the outlet 120. If the target outlet temperature is lower than or equal to the first temperature threshold (i.e., low-temperature water), the first flow component of the heating tank water circuit 210 and the second flow component of the ambient temperature water circuit 220 are controlled to ensure that water is output from both the heating tank water circuit 210 and the ambient temperature water circuit 220. Water from the hot water circuit 210 and the ambient temperature water circuit 220 is fed into the heating element 310. The heating element 310 heats the water flowing through it so that the outlet 120 outputs water at the target outlet temperature.

[0157] When the water dispenser is in the second water dispensing mode, the first heating device 213 preheats the water in the hot water tank 211 to the preheating temperature of 85°C corresponding to the second water dispensing mode. When the temperature of the water in the hot water tank 211 is less than or equal to 80°C, the first heating device 213 is activated to heat the water in the hot water tank 211, and heating stops when the water temperature in the hot water tank 211 reaches 85°C to maintain a constant temperature. Then, it is determined whether the water level in the hot water tank 211 has reached the preset water level. If the water level in the hot water tank 211 has not reached the preset water level, the hot water circuit 210 is disconnected, and only the ambient temperature water circuit 220 is controlled to dispense water. The water output from the ambient temperature water circuit 220 is fed into the heating element 310, which heats the water flowing through it to ensure that the outlet 120 dispenses water at the target outlet temperature. When the water level in the hot water tank 211 reaches the preset water level, it is determined whether the water temperature in the hot water tank 211 has reached the preset threshold temperature of 40°C. When the water temperature in the heating tank 211 is below 40°C, the heating tank water circuit 210 is disconnected, and only the ambient temperature water circuit 220 is controlled to output water. Water from the ambient temperature water circuit 220 is fed into the heating element 310, which heats the water flowing through it to ensure that water at the target outlet temperature is output from the outlet 120. When the water temperature in the heating tank 211 reaches the preset threshold temperature of 40°C, it is determined whether the target outlet temperature is higher than the first temperature threshold. When the target outlet temperature is lower than or equal to the first temperature threshold (i.e., low-temperature water), the heating tank water circuit 210 is disconnected, and only the ambient temperature water circuit 220 is controlled to output water. Water from the ambient temperature water circuit 220 is fed into the heating element 310, which heats the water flowing through it to ensure that water at the target outlet temperature is output from the outlet 120. When the target outlet water temperature is higher than the first temperature threshold, i.e., high-temperature water, the first flow component of the hot water circuit 210 and the second flow component of the ambient temperature water circuit 220 are controlled to ensure that water is discharged from both the hot water circuit 210 and the ambient temperature water circuit 220. The water output from the hot water circuit 210 and the ambient temperature water circuit 220 is fed into the heating element 310, which heats the water flowing through it so that water at the target outlet temperature is output from the outlet 120.

[0158] Those skilled in the art can understand the specific steps and technical effects of the above-described water dispenser control method by reading the detailed description of the water dispenser. For the sake of brevity, they will not be repeated here.

[0159] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0160] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0161] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0162] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0163] Similarly, it should be understood that, in order to streamline the invention and aid in understanding one or more of the various aspects of the invention, features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof in the description of exemplary embodiments of the invention. However, this approach should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the corresponding claims, its inventive point lies in solving the corresponding technical problem with fewer features than all of those in a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0164] Those skilled in the art will understand that, apart from the mutual exclusion of features, all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or apparatus so disclosed can be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0165] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0166] The various component embodiments of the present invention can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Those skilled in the art will understand that microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functions of some components in the water dispenser according to embodiments of the present invention. The present invention can also be implemented as an apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such programs implementing the present invention can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0167] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0168] The above are merely specific embodiments or descriptions of the present invention, and the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water dispenser, comprising a water inlet and a water outlet, characterized in that, The water dispenser further includes: a control component, and a first water path and a second water path connected in series between the water inlet and the water outlet along the water flow direction; wherein, the first water path includes a hot tank water path and a normal temperature water path connected in parallel, the hot tank water path is provided with a hot tank and a first flow control component arranged in series along the water flow direction, the hot tank is provided with a first heating device for heating the water in the hot tank, and the second water path is provided with a heating element for heating the water flowing through the heating element. The control component is used to perform control operations according to the target outlet water temperature, so as to output water at the target outlet water temperature through the outlet. The control operations include controlling the first flow control component to control the water flow rate of the hot tank water circuit, and controlling the heating element to heat the water flowing through the heating element.

2. The water dispenser according to claim 1, characterized in that, A second flow control component is installed on the ambient temperature water circuit; The control operation further includes controlling the second flow control component to control the water flow rate of the ambient temperature water circuit.

3. The water dispenser according to claim 2, characterized in that, The control component is also used to determine the current water dispensing mode, which is one of a plurality of water dispensing modes of the water dispenser; The execution of the control operation is also based on the current water output mode.

4. The water dispenser according to claim 3, characterized in that, A second temperature sensor is installed in the ambient temperature water circuit to detect the temperature of the water flowing through it. The control operations include the following: When the current water outlet mode is the first water outlet mode among the plurality of water outlet modes, and the target water outlet temperature is higher than the preheating temperature of the hot water tank under the first water outlet mode but lower than or equal to the first temperature threshold, and / or when the current water outlet mode is the second water outlet mode among the plurality of water outlet modes, and the target water outlet temperature is higher than the first temperature threshold, Control the first flow control component to operate at maximum flow; Control the heating element to operate at maximum power; The first flow rate of the second flow control component is determined based on the maximum power of the heating element, the maximum flow rate of the first flow control component, the temperature of the water flowing through the hot water tank circuit, the temperature of the water flowing through the room temperature water circuit, and the target outlet water temperature, and the second flow control component is controlled based on the first flow rate. In the first water outlet mode, the preheating temperature of the hot tank is lower than the first temperature threshold, and in the second water outlet mode, the preheating temperature of the hot tank is equal to or higher than the first temperature threshold.

5. The water dispenser according to claim 4, characterized in that, The control operations include the following: When the current water outlet mode is the first water outlet mode and the target water outlet temperature is higher than the first temperature threshold, Control the second flow control component to disconnect the ambient temperature water circuit; Control the heating element to operate at maximum power; The second flow rate of the first flow control component is determined based on the maximum power of the heating element, the temperature of the water flowing through the hot water tank, and the target outlet water temperature, and the first flow control component is controlled based on the second flow rate.

6. The water dispenser according to claim 4, characterized in that, The control operations include the following: When the current water outlet mode is the second water outlet mode, and the target water outlet temperature is lower than or equal to the first temperature threshold, Control the first flow control component to disconnect the water circuit of the hot tank; Control the heating element to operate at maximum power; The third flow rate of the second flow control component is determined based on the maximum power of the heating element, the temperature of the water in the ambient temperature water circuit, and the target outlet water temperature, and the second flow control component is controlled based on the third flow rate.

7. The water dispenser according to claim 4, characterized in that, The control component determines the first flow rate of the second flow control component based on the maximum power of the heating element, the maximum flow rate of the first flow control component, the temperature of the water flowing through the hot water tank circuit, the temperature of the water flowing through the ambient temperature water circuit, and the target outlet water temperature, including performing the following operations: The power consumption of the water in the hot tank is determined based on the maximum flow rate of the first flow control component, the temperature of the water flowing through the hot tank water circuit, and the target outlet water temperature. The flow rate of the second flow control component is determined based on the power consumption of the water in the hot tank, the maximum power of the heating element, the temperature of the water flowing through the second water circuit, and the target outlet water temperature.

8. The water dispenser according to claim 4, characterized in that, A first temperature sensor is installed inside the hot tank to detect the temperature of the water inside the hot tank, which is used as the temperature of the water flowing through the water circuit of the hot tank; or A third temperature sensor is installed on the hot water line and at the outlet of the hot water line to detect the temperature of the water flowing through the hot water line.

9. The water dispenser according to claim 3, characterized in that, The control operations include the following: When the current water outlet mode is the energy-saving mode among the multiple water outlet modes, Control the first flow control component to disconnect the water circuit of the hot tank; Control the heating element to operate at maximum power; The fourth flow rate of the second flow control component is determined based on the maximum power of the heating element, the temperature of the water flowing through the room temperature water circuit, and the target outlet water temperature, and the second flow control component is controlled based on the fourth flow rate. In the energy-saving mode, the first heating device is controlled to not operate.

10. The water dispenser according to claim 3, characterized in that, The multiple water outlet modes include a first water outlet mode, a second water outlet mode, and an energy-saving mode; The control component is also used for: When the water dispenser is in smart mode, the first duration of water dispensing at a target outlet temperature lower than the first temperature threshold and the second duration of water dispensing at a target outlet temperature higher than the first temperature threshold are statistically analyzed in each time interval within the current time period according to a preset time cycle. For each time interval, if the first duration is greater than the second duration, the water dispenser is controlled to operate in the first water dispensing mode in the corresponding time interval of the next time cycle; if the second duration is greater than the first duration, or if the first duration is equal to the second duration and not 0, the water dispenser is controlled to operate in the second water dispensing mode in the corresponding time interval of the next time cycle; if both the first duration and the second duration are 0, the water dispenser is controlled to operate in the energy-saving mode in the corresponding time interval of the next time cycle. In the first water outlet mode, the preheating temperature of the water in the hot tank is lower than the first temperature threshold, and in the second water outlet mode, the preheating temperature of the water in the hot tank is equal to or higher than the first temperature threshold.

11. The water dispenser according to claim 3, characterized in that, The water dispenser is also equipped with: The receiving component is used to receive instructions sent by the user; The control component is also used to determine the current water output mode based on the instructions sent by the user.

12. The water dispenser according to any one of claims 2 to 10, characterized in that, The first flow control component is a water pump, the second flow control component is a controllable valve, and a flow detection sensor is also provided on the second water line or the ambient temperature water line. The flow detection sensor is used to detect the flow rate of the water. The control component controls the second flow control component to control the water flow rate of the ambient temperature water circuit by performing the following operations: controlling the controllable valve according to the detected water flow rate to control the water flow rate of the ambient temperature water circuit.

13. The water dispenser according to any one of claims 2 to 10, characterized in that, A fourth temperature sensor is installed at the water outlet to detect the temperature of the water output from the water outlet; The control operation also includes: When the heating element operates at maximum power and the temperature of the water output from the outlet is not equal to the target outlet temperature, the first flow control component and / or the second flow control component are controlled to adjust the water flow rate of the ambient temperature water path.

14. The water dispenser according to any one of claims 1 to 10, characterized in that, The hot tank is equipped with a first temperature sensor for detecting the temperature of the water inside the hot tank; The control operations include: When the temperature of the water in the hot tank is lower than the preset threshold temperature, the first flow component is controlled to disconnect the water circuit of the hot tank, and the heating element is controlled to heat the water flowing through the heating element according to the target outlet water temperature.

15. The water dispenser according to any one of claims 1 to 10, characterized in that, The control operations include the following: When the target outlet water temperature is lower than the preheating temperature of the water in the hot tank, the first flow control component is controlled to disconnect the water circuit of the hot tank, and the heating element is controlled to heat the water flowing through the heating element according to the target outlet water temperature.

16. The water dispenser according to any one of claims 1 to 10, characterized in that, A water level sensor is installed inside the hot tank to detect the water level inside the hot tank; The control operations include: When the water level in the hot tank does not reach the preset water level, the first flow component is controlled to disconnect the water circuit of the hot tank, and the heating element is controlled to heat the water flowing through the heating element according to the target outlet water temperature.

17. A control method for a water dispenser, characterized in that, The water dispenser includes an inlet and an outlet, a control component, and a first water path and a second water path connected in series between the inlet and the outlet along the water flow direction. The first water path includes a hot water path and a room temperature water path connected in parallel. The hot water path includes a hot water tank and a first flow control component arranged sequentially along the water flow direction. The hot water tank contains a first heating device for heating the water inside. The second water path includes a heating element for heating the water flowing through it. The method includes: The control operation is performed according to the target outlet water temperature to output water at the target outlet water temperature through the outlet. The control operation includes controlling the first flow control component to control the water flow in the hot tank water circuit, and controlling the heating element to heat the water flowing through the heating element.

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