Water drinking apparatus and control method of water drinking apparatus

Abstract

This invention belongs to the technical field of drinking water equipment and discloses a drinking water device and a control method for it. The drinking water device includes a first flow-diverting structure, a heat exchange component, a heating component, and a water outlet temperature sensor. The first flow-diverting structure includes a first inlet, a first outlet, and a second outlet, the flow rates of which are adjustable. The heat exchange component includes a cold-end flow channel and a hot-end flow channel that cooperate in heat exchange, with the inlet end of the cold-end flow channel connected to the first outlet. The heating component includes a heating inlet and a heating outlet, with the outlet end of the cold-end flow channel connected to the heating inlet, and the heating outlet connected to the inlet end of the hot-end flow channel. The water outlet temperature sensor is used to detect the water outlet temperature of the hot-end flow channel and is communicatively connected to the first flow-diverting structure. This drinking water device can solve the problems of uncontrollable final boiled water temperature due to different temperatures of the room-temperature water entering the heat exchange component, and the mismatch between heating capacity and the large-flow pure water output of the filtration component.

Description

Technical Field

[0001] This invention relates to the field of drinking water equipment technology, and in particular to a drinking water equipment and a control method for the drinking water equipment. Background Technology

[0002] As users' demand for drinking water increases, existing water dispensers, in addition to providing boiled water and room temperature water, have added the function of preparing cooled boiled water to meet users' drinking needs.

[0003] In some existing water dispensers, purified water is first boiled by a heating element, then cooled by a heat exchanger, and finally output as cooled boiled water. Although cooled boiled water can be supplied, the temperature of the room-temperature water entering the heat exchanger varies depending on the season and environment, making the temperature of the cooled boiled water uncontrollable and affecting the final output water temperature.

[0004] In addition, the existing filter components have a large flow rate, but the heating capacity of the heating components is relatively small, resulting in a mismatch between the heating capacity of the heating components and the flow rate of water, which affects the water temperature at the outlet of the heating components. Some water dispensers solve this problem by setting up a buffer water tank, which not only increases the cost but also increases the size of the whole machine. Summary of the Invention

[0005] The purpose of this invention is to provide a drinking water device and a control method for the drinking water device, which can solve the problems of uncontrollable final boiled water temperature due to different temperatures of room temperature water introduced into the heat exchange component, and the mismatch between heating capacity and the large flow of pure water output by the filtration component.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A drinking water device, comprising:

[0008] A first diversion structure, comprising a first inlet, a first outlet, and a second outlet, wherein the flow rates of the first outlet and the second outlet are adjustable;

[0009] A heat exchange assembly, comprising a cold end flow channel and a hot end flow channel that are heat exchanged together, wherein the inlet end of the cold end flow channel is connected to the first outlet.

[0010] A heating assembly includes a heating inlet and a heating outlet, wherein the outlet end of the cold end flow channel can communicate with the heating inlet, and the heating outlet can communicate with the inlet end of the hot end flow channel;

[0011] The outlet water temperature sensor is used to detect the outlet water temperature of the hot end flow channel, and the outlet water temperature sensor is communicatively connected to the first flow splitting structure.

[0012] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a water outlet structure, the outlet end of the hot end flow channel can be connected to the water outlet structure, and the water outlet temperature sensor is located at the end of the hot end flow channel or between the water outlet structure and the hot end flow channel.

[0013] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a switching valve, which is connected to the heating outlet, the outlet end of the hot end flow channel and the water outlet structure respectively. The switching valve is used to selectively connect the heating outlet or the outlet end of the hot end flow channel to the outlet structure.

[0014] As an optional solution for the above-mentioned drinking water equipment, the first diversion structure includes a first flow channel and a first valve assembly disposed in the first flow channel. One end of the first flow channel is a first inlet, and the other end is divided into a first outlet and a second outlet. The first valve assembly is used to adjust the flow ratio of the first outlet and the second outlet.

[0015] As an alternative to the aforementioned drinking water equipment, the first valve assembly includes a first three-way control valve;

[0016] Alternatively, the first flow channel includes a first inlet pipe and a first outlet pipe and a second outlet pipe respectively connected to the first inlet pipe. One end of the first inlet pipe forms the first inlet, one end of the first outlet pipe forms the first outlet, and one end of the second outlet pipe forms the second outlet. The first valve assembly includes a first flow regulating valve disposed on the first outlet pipe.

[0017] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a second diversion structure, which includes a second inlet, a third outlet and a fourth outlet. The second inlet is connected to the cold end flow channel, the third outlet is connected to the heating inlet, and the fourth outlet is connected to the first inlet.

[0018] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a temperature sensing component, which is disposed on the heating component and is used to detect the water temperature at the heating inlet and / or the heating outlet. The temperature sensing component is electrically connected to the second shunt structure.

[0019] And / or, a flow meter is provided between the third outlet and the heating inlet, and the flow meter is electrically connected to the second diversion structure.

[0020] As an alternative to the above-mentioned drinking water equipment, the drinking water equipment further includes a filter assembly, the second outlet is connected to the filter assembly, and the outlet end of the filter assembly is connected to the first inlet.

[0021] As an alternative to the above-mentioned drinking water equipment, the drinking water equipment further includes a room temperature water channel, which connects the outlet end of the filter component and the water outlet structure.

[0022] A control method for a drinking water device, using the aforementioned drinking water device, the control method comprising:

[0023] Obtain the target temperature of the cooled boiled water required by the user and the outlet water temperature of the hot end flow channel;

[0024] The flow rate of the first outlet is adjusted according to the target temperature and the outlet water temperature, so that excess water entering the first diversion structure through the first inlet flows out through the second outlet.

[0025] As an optional solution to the control method of the above-mentioned drinking water equipment, the drinking water equipment further includes a second diversion structure, the second diversion structure including a second inlet, a third outlet and a fourth outlet, the second inlet being connected to the cold end flow channel, the third outlet being connected to the heating inlet, and the fourth outlet being connected to the first inlet;

[0026] The method for preparing cooled boiled water also includes:

[0027] Obtain temperature information at the heating inlet and / or the heating outlet;

[0028] Based on the temperature information, the flow rate of the third outlet is adjusted so that excess water in the cold end channel flows back to the first diversion structure through the fourth outlet.

[0029] The beneficial effects of this invention are:

[0030] The drinking water device provided by this invention can adjust the flow rate of room temperature water flowing into the cold end channel according to the actual situation, so as to ensure that the excess heat of the boiling water is accurately removed in the heat exchange component and the temperature of the cooled boiled water is accurate. The excess room temperature water in the first diversion structure flows back through the second outlet and will not enter the heating component, thus solving the problem of the mismatch between the small heating capacity of the heating component and the large flow rate of the filtration component, thereby ensuring the water temperature at the heating outlet.

[0031] The control method for the drinking water equipment provided by this invention can be applied to the above-mentioned drinking water equipment and can solve the problems of uncontrollable final boiled water temperature due to different temperatures of room temperature water introduced into the heat exchange component, as well as the mismatch between heating capacity and the large flow of pure water output by the filter component. Attached Figure Description

[0032] Figure 1 This is a first structural schematic diagram of the drinking water device provided by the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the control and components provided by the present invention;

[0034] Figure 3 This is a schematic diagram of the second structure of the drinking water device provided by the present invention;

[0035] Figure 4 This is a schematic diagram of the control panel provided by the present invention.

[0036] In the picture:

[0037] 10. First diversion structure; 11. First flow channel; 111. First inlet pipe; 112. First outlet pipe; 113. Second outlet pipe; 12. First three-way control valve; 20. Heat exchange assembly; 21. Cold end flow channel; 22. Hot end flow channel; 30. Second diversion structure; 31. Second flow channel; 311. Second inlet pipe; 312. Third outlet pipe; 313. Fourth outlet pipe; 32. Second three-way control valve; 40. Heating assembly; 51. Hot water flow channel; 52. Diversion flow channel; 53. Normal temperature water flow channel; 54. Primary filtration flow channel; 55. Secondary filtration flow channel; 56. Return flow channel; 57. Wastewater flow channel; 61. Inlet temperature... 62. Temperature sensor; 63. Outlet temperature sensor; 70. Outlet water temperature sensor; 81. Flow meter; 82. First check valve; 83. First switching valve; 84. Switching valve; 85. Third check valve; 86. Second switching valve; 87. Second check valve; 88. Fourth switching valve; 90. Outlet structure; 100. Control components; 200. Filter components; 210. First filter; 220. Booster pump; 230. Second filter; 300. Control panel; 310. Display panel; 320. Child lock function area; 330. Temperature selection function area; 340. Hot water function area; 350. Normal temperature water function area. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0042] Example 1

[0043] This embodiment provides a drinking water device that can prepare boiled water at various temperatures with accurate water temperature output. For example, this drinking water device can be a combined boiled water purifier and heater.

[0044] like Figure 1 As shown, the drinking water equipment includes a first diversion structure 10, a heat exchange component 20, a heating component 40, and a water outlet structure 90. The first diversion structure 10 includes a first inlet, a first outlet, and a second outlet. The first inlet is used to introduce purified water, and the flow rates of the first and second outlets are adjustable. The second outlet serves as a return port, capable of diverting at least a portion of the water entering the first diversion structure 10 through the first inlet. The heat exchange component 20 includes a cold-end flow channel 21 and a hot-end flow channel 22 that cooperate in heat exchange. The inlet end of the cold-end flow channel 21 is connected to the first outlet, using room-temperature purified water as the cold-end medium of the heat exchange component 20. The heating component 40 includes a heating inlet and a heating outlet. The outlet end of the cold-end flow channel 21 can be connected to the heating inlet, allowing the purified water, which has absorbed heat and increased in temperature after heat exchange in the heat exchange component 20, to be further heated in the heating component 40. The heating outlet can be connected to the inlet end of the hot-end flow channel 22, and the outlet end of the hot-end flow channel 22 is connected to the water outlet structure 90. The heated boiled water enters the hot end flow channel 22 and serves as the hot end medium of the heat exchange component 20 for cooling. After cooling, it becomes cooled boiled water, which is then introduced into the water outlet structure 90 for users to use.

[0045] In the above-mentioned drinking water equipment, boiled water is cooled down by heat exchange to produce cooled boiled water, which is cooked water and is more hygienic to drink. Room temperature purified water is used as the cold end medium of heat exchange component 20, which can absorb the heat of boiled water and avoid heat waste. Moreover, room temperature water is heated and then enters heating component 40, which can reduce the consumption of heating component 40 and help save electricity.

[0046] Due to seasonal variations and different living environments, the temperature of room temperature water is uncontrollable, resulting in uncontrollable heat exchange efficiency of the heat exchange component 20. This leads to inaccurate temperatures of the prepared boiled water, affecting the user experience. Furthermore, the flow rate of purified water is generally large, while the heating capacity of the heating component 40 is relatively small, resulting in a mismatch between the purified water flow rate and the heating capacity of the heating component 40. This can easily cause the water at the heating outlet to not be boiled, thus affecting drinking hygiene.

[0047] To address the aforementioned issues, the drinking water equipment also includes an outlet water temperature sensor 63. This sensor detects the outlet water temperature in the hot-end flow channel 22 and is communicatively connected to the first diversion structure 10. This allows for adjustment of the flow rate of room-temperature water entering the cold-end flow channel 21 based on the actual cooled boiled water temperature, ensuring effective heat exchange between the room-temperature water and the boiled water and precisely controlling the cooled boiled water temperature. Simultaneously, since the heating inlet of the heating component 40 is connected to the hot-end flow channel 22, adjusting the water flow rate within the hot-end flow channel 22 can, to a certain extent, regulate the water flow rate entering the heating component 40 to match its heating capacity and ensure the outlet water temperature.

[0048] Optionally, the outlet water temperature sensor 63 can be a thermistor, which can be set at the end of the hot end flow channel 22, the outlet structure 90, or between the hot end flow channel 22 and the outlet structure 90, so as to detect the temperature of the cooled boiled water.

[0049] It should be noted that the temperature sensor is existing technology in this field. In this embodiment, any structure and detection principle other than thermistor can be used, as long as it can detect the temperature of the prepared cooled boiled water. Further details will not be provided here.

[0050] In some embodiments, the drinking water device further includes a control component 100, such as... Figure 2 As shown, the control component 100 is electrically connected to the outlet water temperature sensor 63 and the first diversion structure 10 respectively. The control component 100 can receive the temperature information of the cooled boiled water detected by the outlet water temperature sensor 63, and adjust the flow rate of the first outlet in the first diversion structure 10 according to the temperature information and the target temperature of the cooled boiled water required by the user, thereby accurately controlling the temperature of the cooled boiled water at the outlet end of the hot end flow channel 22.

[0051] It should be noted that the control component 100 is existing technology in this field. It can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to adjust the flow rate of the first outlet.

[0052] In some embodiments, the drinking water device further includes a switching valve 83, which is connected to the heating outlet, the outlet end of the hot end flow channel 22, and the water outlet structure 90, respectively. The switching valve 83 is used to selectively connect the heating outlet or the outlet end of the hot end flow channel 22 to the water outlet structure 90. When the switching valve 83 connects the heating outlet to the water outlet structure 90, at least a portion of the hot water heated by the heating component 40 can flow into the water outlet structure 90 through the switching valve 83, meeting the user's need for hot water. When the switching valve 83 connects the outlet end of the hot end flow channel 22 to the water outlet structure 90, the cooled boiled water in the hot end flow channel 22 can flow into the water outlet structure 90 through the switching valve 83, meeting the user's need for cooled boiled water.

[0053] Optionally, the switching valve 83 is a two-inlet, one-outlet solenoid valve to facilitate automatic adjustment of the state of the switching valve 83. Optionally, the switching valve 83 is electrically connected to the control component 100 to switch the water output according to the user's water intake command to meet the user's needs.

[0054] In some embodiments, the drinking water device further includes a hot water channel 51 and a diversion channel 52. The two ends of the hot water channel 51 are respectively connected to the heating outlet and the switching valve 83, and the two ends of the diversion channel 52 are respectively connected to the hot water channel 51 and the hot end channel 22 to realize hot water diversion.

[0055] To achieve room temperature water diversion, the first diversion structure 10 includes a first flow channel 11 and a first valve assembly disposed on the first flow channel 11. One end of the first flow channel 11 is a first inlet, and the other end is divided into a first outlet and a second outlet. The first valve assembly is used to adjust the flow ratio of the first outlet and the second outlet. It should be noted that the flow rates of the first outlet and the second outlet are inversely proportional; when the flow rate of the first outlet increases, the flow rate of the second outlet decreases; and when the flow rate of the first outlet decreases, the flow rate of the second outlet increases.

[0056] In some embodiments, the first valve assembly includes a first three-way control valve 12, which is a one-in-two-out solenoid valve. Specifically, the first flow channel 11 includes a first inlet pipe 111, a first outlet pipe 112, and a second outlet pipe 113. The three valve ports of the first three-way control valve 12 are respectively connected to the first inlet pipe 111, the first outlet pipe 112, and the second outlet pipe 113. One end of the first inlet pipe 111 forms a first inlet, one end of the first outlet pipe 112 forms a first outlet, and one end of the second outlet pipe 113 forms a second outlet. Water entering the first three-way control valve 12 from the first inlet through the first inlet pipe 111 can be divided into two paths: one path enters the first outlet pipe 112, and the other path enters the second outlet pipe 113. By adjusting the opening of the first three-way control valve 12, the flow rate in the first outlet pipe 112 and the second outlet pipe 113 can be adjusted.

[0057] It should be noted that the one-in-two-out solenoid valve is a conventional technology in this field, and its specific structure will not be described here.

[0058] In some embodiments, the first three-way control valve 12 can be replaced by a first flow regulating valve. Specifically, the first inlet pipe 111 is connected to the first outlet pipe 112 and the second outlet pipe 113 to form a three-way pipe. The first flow regulating valve is installed on the first outlet pipe 112, and the flow rate in the first outlet pipe 112 can be adjusted by adjusting the opening of the first flow regulating valve. It should be noted that the flow regulating valve is conventional technology in the art, and its specific structure will not be described here.

[0059] To ensure that the water flow rate entering the heating element 40 matches the heating capacity of the heating element 40, in some embodiments, the drinking water device further includes a second diversion structure 30. The second diversion structure 30 includes a second inlet, a third outlet, and a fourth outlet. The second inlet is connected to the cold end flow channel 21 and is used to introduce purified water that has been heated after heat exchange. The third outlet is connected to the heating inlet and is used to supply water to the heating element 40. The fourth outlet is connected to the first inlet and is used to divert a portion of the purified water, controlling the flow rate at the third outlet. By setting the second diversion structure 30, the water flow rate entering the heating element 40 can be controlled, and excess water can be returned to the first diversion structure 10 for reuse, thereby ensuring that the water flow rate entering the heating element 40 matches the heating capacity of the heating element 40, and thus ensuring the water temperature at the heating outlet.

[0060] To achieve net water diversion after heat exchange, the second diversion structure 30 includes a second flow channel 31 and a second valve assembly disposed on the second flow channel 31. One end of the second flow channel 31 is a second inlet, and the other end is divided into a third outlet and a fourth outlet. The second valve assembly is used to adjust the flow ratio of the third outlet and the fourth outlet. It should be noted that the flow rates of the third outlet and the fourth outlet are inversely proportional; when the flow rate of the third outlet increases, the flow rate of the fourth outlet decreases, and vice versa.

[0061] In some embodiments, the second valve assembly includes a second three-way control valve 32, which is a one-in-two-out solenoid valve. Specifically, the second flow channel 31 includes a second inlet pipe 311, a third outlet pipe 312, and a fourth outlet pipe 313. The three valve ports of the second three-way control valve 32 are respectively connected to the second inlet pipe 311, the third outlet pipe 312, and the fourth outlet pipe 313. One end of the second inlet pipe 311 forms a second inlet, one end of the third outlet pipe 312 forms a third outlet, and one end of the fourth outlet pipe 313 forms a fourth outlet. Water entering the second three-way control valve 32 from the second inlet through the second inlet pipe 311 can be divided into two paths: one path enters the third outlet pipe 312, and the other path enters the fourth outlet pipe 313. By adjusting the opening of the second three-way control valve 32, the flow rate in the third outlet pipe 312 and the fourth outlet pipe 313 can be adjusted.

[0062] It should be noted that the one-in-two-out solenoid valve is a conventional technology in this field, and its specific structure will not be described here.

[0063] In some embodiments, the second three-way control valve 32 can be replaced by a second flow regulating valve. Specifically, the second inlet pipe 311 is connected to the third outlet pipe 312 and the fourth outlet pipe 313 respectively to form a three-way pipe. The second flow regulating valve is installed on the second outlet pipe 313, and the flow rate in the third outlet pipe 312 can be adjusted by adjusting the opening of the second flow regulating valve. It should be noted that the flow regulating valve is conventional technology in this field, and its specific structure will not be described here.

[0064] In some embodiments, a first check valve 81 is provided on the fourth water outlet pipe 313. The first check valve 81 can allow water in the fourth water outlet pipe 313 to flow to the first diversion structure 10 and prevent water in the first diversion structure 10 from flowing to the second diversion structure 30 through the fourth water outlet pipe 313.

[0065] In some embodiments, the heating component 40 can be an instant heating module. Specifically, the heating component 40 includes a thick-film heating element, which can convert electrical energy into heat energy, has a large heating area, and can improve heating efficiency. The thick-film heating element is a prior art structure and will not be described in detail here.

[0066] To ensure accurate water temperature at the heating outlet, in some embodiments, the drinking water device further includes a temperature sensing component. This component is located within the heating assembly 40 and is used to detect the water temperature at the heating inlet and / or outlet. The temperature sensing component is electrically connected to the second diversion structure 30. By detecting the water temperature at the heating inlet and / or outlet, the flow rate at the third outlet in the second diversion structure 30 can be adjusted to increase or decrease the water flow rate entering the heating assembly 40, thus ensuring the heating effect of the heating assembly 40.

[0067] In some embodiments, the temperature sensing component includes an inlet temperature sensor 61 and an outlet temperature sensor 62. The detection end of the inlet temperature sensor 61 is located at the heating inlet to detect the water temperature at the heating inlet; the detection end of the outlet temperature sensor 62 is located at the heating outlet to detect the water temperature at the heating outlet. In other embodiments, only the inlet temperature sensor 61 or the outlet temperature sensor 62 may be provided.

[0068] In some embodiments, the temperature sensing component is electrically connected to the second shunt structure 30 via the control component 100. The temperature sensing component sends the detected temperature information to the control component 100, and the control component 100 adjusts the flow rate at the third outlet of the second shunt structure 30 according to the received temperature information, the power of the heating component 40, and the required heating temperature.

[0069] For example, when the power of the heating component 40 and the required heating temperature are constant, if the water temperature at the heating inlet is detected to be low or the water temperature at the heating outlet is detected to be lower than the required heating temperature, the control component 100 controls the second diversion structure 30 to reduce the flow rate at the third outlet in order to increase the water temperature at the heating outlet; when the water temperature at the heating inlet is detected to be high or the water temperature at the heating outlet is detected to be higher than the required heating temperature, the control component 100 controls the second diversion structure 30 to increase the flow rate at the third outlet in order to increase the water temperature at the heating outlet.

[0070] To improve the accuracy of water temperature at the heating outlet, in some embodiments, a flow meter 70 is installed between the third outlet and the heating inlet, and the flow meter 70 is electrically connected to the second flow divider structure 30. By installing the flow meter 70, another layer of feedback control is formed to improve the accuracy of water temperature measurement. Specifically, when a certain difference is detected between the water temperature at the heating outlet and the required heating temperature, the control component 100 can obtain the theoretical flow rate of the third outlet based on the received temperature information, and control the second flow divider structure 30 to adjust the flow rate at the third outlet according to the theoretical flow rate; the flow meter 70 detects the actual flow rate of the third outlet in real time and sends the actual flow rate to the control component 100. The control component 100 can further adjust the opening degree of the third outlet based on the actual flow rate and the theoretical flow rate to achieve precise control.

[0071] It should be noted that the flow meter 70 is existing technology in this field, and its specific structure will not be described here.

[0072] In some embodiments, combined with Figure 1 and Figure 3 As shown, the drinking water equipment also includes a filter assembly 200, which includes a filter inlet and a filter outlet. The filter inlet is used to introduce tap water, and the filter outlet is used to output filtered clean water. The first inlet and the filter outlet are connected.

[0073] To meet users' needs for room temperature purified water, the filter outlet can also be connected to the water outlet structure 90 to provide room temperature purified water to the water outlet structure 90.

[0074] In some embodiments, the filter outlet and the water outlet structure 90 are connected through a normal temperature water flow channel 53. To control the supply of normal temperature water, a first switching valve 82 is provided on the normal temperature water flow channel 53, which can control the opening and closing of the normal temperature water flow channel 53.

[0075] Optionally, the first switching valve 82 can be a solenoid valve and electrically connected to the control component 100 so that the control component 100 can control the opening and closing of the first switching valve 82 according to the user's needs.

[0076] In some embodiments, the water outlet structure 90 includes at least two water outlets, each used to dispense different types of water. For example, the water outlet structure 90 includes two water outlets, one of which is connected to the ambient temperature water channel 53 for outputting ambient temperature water; the other outlet is connected to the switching valve 83 for outputting hot water or cooled boiled water.

[0077] It should be noted that the water outlet structure 90 is existing technology in this field, and its structure will not be described here.

[0078] To avoid wasting the water diverted from the second outlet, in some embodiments, the second outlet is connected to the filter assembly 200, so that the water diverted from the second outlet can enter the filter assembly 200 for further filtration and recycling.

[0079] In some embodiments, the filtration assembly 200 includes a first filter 210, a booster pump 220, and a second filter 230. The first filter 210 can serve as a pre-filter for primary filtration of tap water. The first filter 210 is provided with a filter inlet and a primary filter outlet. The primary filter outlet is connected to the secondary filter inlet of the second filter 230 via the booster pump 220, thereby pressurizing the water that has undergone primary filtration before it enters the second filter 230 for secondary filtration. The second filter 230 is provided with a secondary filter outlet, through which the water that has undergone secondary filtration is output.

[0080] In some embodiments, the second filter 230 may be an RO (reverse osmosis) filter.

[0081] To improve filtration efficiency, in some embodiments, the first filter 210 includes a PCB filter element and a post-carbon filter element. The first filter 210 also has a return port and a filter outlet. The PCB filter element is connected to the filter inlet and the primary filter outlet, the secondary filter outlet is connected to the return port, and the post-carbon filter element is connected to both the return port and the filter outlet. Water filtered by the second filter 230 enters the first filter 210 through the return port, is filtered by the post-carbon filter element, and then flows out through the filter outlet.

[0082] Specifically, the primary filter outlet is connected to the booster pump 220 through the primary filter channel 54, the booster pump 220 is connected to the secondary filter inlet through the secondary filter channel 55, and the secondary filter outlet is connected to the return port through the return channel 56.

[0083] To prevent backflow, in some embodiments, a second check valve 87 is provided on the return channel 56, which can prevent water from flowing from the return port to the secondary filter outlet.

[0084] In some embodiments, a second switching valve 86 is provided on the primary filtration channel 54 to control the opening and closing of the primary filtration channel 54, thereby opening the second switching valve 86 when purified water is needed to filter tap water.

[0085] In some embodiments, the second outlet is connected to the primary filter channel 54 so that the water diverted through the second outlet enters the second filter 230 through the booster pump 220, thereby realizing water recycling. On the other hand, the water output from the second outlet is purified water, which can reduce the TDS (Total Dissolved Solids) value of the water entering the second filter 230, thereby ensuring the filtration effect of the second filter 230 and extending its service life.

[0086] Optionally, a third check valve 84 and a third switching valve 85 are provided between the second outlet and the primary filter channel 54 to prevent water backflow and control the opening and closing of the second outlet and the primary filter channel 54.

[0087] In some embodiments, the second filter 230 is further provided with a wastewater outlet, which is connected to a wastewater channel 57 for discharging wastewater during the filtration process. Optionally, a fourth switching valve 88 is provided on the wastewater channel 57 to control the opening and closing of the wastewater channel 57.

[0088] In some embodiments, the drinking water device also includes a control panel 300, which is electrically connected to the control component 100 and is used to interact with the user.

[0089] Optionally, such as Figure 4 As shown, the control panel 300 includes a display panel 310 and an instruction operation area. The display panel 310 is used to display the working status of the water dispenser, such as the water temperature. The instruction operation area includes, but is not limited to, a child lock function area 320, a temperature selection function area 330, a hot water function area 340, and a room temperature water function area 350.

[0090] The child lock function area 320 may include a button lock to protect children's safety. When it is in use, the water temperature of the drinking device cannot exceed the specified temperature to protect children's safety and avoid scalding.

[0091] Temperature selection function area 330 can be used to select the temperature of boiled water or hot water; hot water function area 340 is used to trigger the hot water dispensing command; room temperature water function area 350 is used to trigger the room temperature water dispensing command.

[0092] The water circuit of the drinking water device provided in this embodiment when dispensing cooled boiled water is as follows:

[0093] The second switching valve 86, booster pump 220, first three-way control valve 12, second three-way control valve 32, heating component 40, and switching valve 83 are opened. Switching valve 83 connects the hot end flow channel 22 and the water outlet structure 90. Tap water flows in through the filter inlet of the first filter 210 for primary filtration, and then enters the second filter 230 for secondary filtration after passing through the second switching valve 86 and booster pump 220 from the primary filter outlet. The water after secondary filtration enters the first filter 210 through the secondary filter outlet, return flow channel 56, and return port. After being filtered by the post-carbon filter element in the first filter 210, it enters the first diversion structure 10 from the filter outlet.

[0094] The purified water flowing out of the filter outlet enters the first diversion structure 10 through the first inlet. Under the control of the control component 100, part of the purified water flows to the first outlet through the first three-way control valve 12, and then enters the cold end flow channel 21. After heat exchange and temperature rise, it enters the second diversion structure 30. The other part of the purified water flows to the second outlet through the first three-way control valve 12, and then flows back to the booster pump 220 through the third check valve 84 and the third switching valve 85.

[0095] The heated purified water flowing out of the cold end channel 21 enters the second diversion structure 30 through the second inlet. Under the control of the control component 100, part of the purified water flows out of the third outlet through the second three-way control valve 32 and enters the heating component 40 for further heating through the heating inlet. The boiling water flowing out of the heating outlet enters the hot end channel 22 for cooling. The cooled boiled water after passing through the hot end channel 22 enters the water outlet structure 90 through the switching valve 83 and flows out from the water outlet structure 90. The other part of the purified water flows out of the fourth outlet through the second three-way control valve 32 and flows back to the first diversion structure 10 after passing through the first check valve 81.

[0096] The water supply circuit of the drinking water device provided in this embodiment when dispensing boiled water is as follows:

[0097] The second switching valve 86, booster pump 220, first three-way control valve 12, second three-way control valve 32, heating component 40, and switching valve 83 are opened, with switching valve 83 connecting the heating outlet and the water outlet structure 90. Tap water flows in through the filter inlet of the first filter 210 for primary filtration, and then enters the second filter 230 for secondary filtration after passing through the second switching valve 86 and booster pump 220 from the primary filter outlet. The water after secondary filtration enters the first filter 210 through the secondary filter outlet, return channel 56, and return port, and after being filtered by the post-carbon filter element in the first filter 210, enters the first diversion structure 10 from the filter outlet.

[0098] The purified water flowing out of the filter outlet enters the first diversion structure 10 through the first inlet. Under the control of the control component 100, part of the purified water flows to the first outlet through the first three-way control valve 12, and then enters the cold end flow channel 21. After heat exchange and temperature rise, it enters the second diversion structure 30. The other part of the purified water flows to the second outlet through the first three-way control valve 12, and then flows back to the booster pump 220 through the third check valve 84 and the third switching valve 85.

[0099] The heated purified water flowing out of the cold end channel 21 enters the second diversion structure 30 through the second inlet. Under the control of the control component 100, part of the purified water flows out of the third outlet through the second three-way control valve 32 and enters the heating component 40 for further heating through the heating inlet. The hot water flowing out of the heating outlet directly enters the water outlet structure 90 through the switching valve 83 and flows out of the water outlet structure 90. The other part of the purified water flows out of the fourth outlet through the second three-way control valve 32 and flows back to the first diversion structure 10 after passing through the first check valve 81.

[0100] The water supply circuit of the drinking water device provided in this embodiment when dispensing boiled water is as follows:

[0101] When the second switch valve 86, the booster pump 220, and the first switch valve 82 are opened, tap water flows in through the filter inlet of the first filter 210 for primary filtration. After that, the water flows through the second switch valve 86 and the booster pump 220 from the primary filter outlet into the second filter 230 for secondary filtration. The water after secondary filtration flows through the secondary filter outlet, the return channel 56, and the return port into the first filter 210. After being filtered by the post-carbon filter element in the first filter 210, the water flows through the filter outlet into the ambient temperature water channel 53 and flows out through the water outlet structure 90.

[0102] Example 2

[0103] This embodiment provides a control method for a drinking water device, which can be used in the drinking water device of Embodiment 1. The control method for the drinking water device includes:

[0104] Obtain the target temperature of the cooled boiled water required by the user and the outlet water temperature of the hot end flow channel 22;

[0105] Adjust the flow rate of the first outlet according to the target temperature and the outlet water temperature, so that the excess water that enters the first diversion structure 10 through the first inlet flows out through the second outlet.

[0106] By adjusting the flow rate of the first outlet and allowing the remaining water to flow out through the second outlet, it is possible to prevent this portion of water from entering the heat exchange component 20 and the heating component 40. On the one hand, this accurately controls the heat exchange effect of the heat exchange component 20 and improves the accuracy of the cooled boiled water temperature at the outlet of the hot end flow channel 22; on the other hand, it controls the water flow rate entering the heating component 40 to avoid insufficient heating leading to substandard water temperature at the heating outlet.

[0107] In some embodiments, the method for preparing cooled boiled water further includes:

[0108] Obtain temperature information at the heating inlet and / or heating outlet;

[0109] Based on the temperature information, the flow rate of the third outlet is adjusted so that excess water in the cold end channel 21 flows back to the first diversion structure 10 through the fourth outlet.

[0110] Adjusting the flow rate of the third outlet based on temperature feedback can further control the water flow rate entering the heating element 40, so that the heating capacity of the heating element 40 can match the incoming flow rate, thereby ensuring that the water at the heating outlet is boiling water while reducing the energy consumption of the heating element 40.

[0111] In some embodiments, flow information at the heating inlet is obtained, and the flow rate at the third outlet is further adjusted based on the flow information to ensure that the water at the heating outlet is boiling water while reducing the energy consumption of the heating component 40.

[0112] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A drinking water device, characterized in that, include: The first diversion structure (10) includes a first inlet, a first outlet and a second outlet, and the flow rates of the first outlet and the second outlet are adjustable. The heat exchange assembly (20) includes a cold end flow channel (21) and a hot end flow channel (22) that are heat exchanged together, and the inlet end of the cold end flow channel (21) is connected to the first outlet. The heating assembly (40) includes a heating inlet and a heating outlet. The outlet end of the cold end flow channel (21) can be connected to the heating inlet, and the heating outlet can be connected to the inlet end of the hot end flow channel (22). The outlet water temperature sensor (63) is used to detect the outlet water temperature of the hot end flow channel (22), and the outlet water temperature sensor (63) is communicatively connected to the first diversion structure (10).

2. The drinking water equipment according to claim 1, characterized in that, The drinking water equipment also includes a water outlet structure (90), the outlet end of the hot end flow channel (22) can be connected to the water outlet structure (90), and the water outlet temperature sensor (63) is located at the end of the hot end flow channel (22) or between the water outlet structure (90) and the hot end flow channel (22).

3. The drinking water equipment according to claim 2, characterized in that, The drinking water equipment also includes a switching valve (83), which is connected to the heating outlet, the outlet end of the hot end flow channel (22), and the water outlet structure (90) respectively. The switching valve (83) is used to selectively connect the heating outlet or the outlet end of the hot end flow channel (22) to the water outlet structure (90).

4. The drinking water equipment according to claim 1, characterized in that, The first flow splitting structure (10) includes a first flow channel (11) and a first valve assembly disposed in the first flow channel (11). One end of the first flow channel (11) is a first inlet, and the other end is split into a first outlet and a second outlet. The first valve assembly is used to adjust the flow ratio of the first outlet and the second outlet.

5. The drinking water equipment according to claim 4, characterized in that, The first valve assembly includes a first three-way control valve (12); Alternatively, the first flow channel (11) includes a first inlet pipe (111) and a first outlet pipe (112) and a second outlet pipe (113) respectively connected to the first inlet pipe (111). One end of the first inlet pipe (111) forms the first inlet, one end of the first outlet pipe (112) forms the first outlet, and one end of the second outlet pipe (113) forms the second outlet. The first valve assembly includes a first flow regulating valve disposed on the first outlet pipe (112).

6. The drinking water equipment according to any one of claims 1-5, characterized in that, The drinking water equipment also includes a second diversion structure (30), which includes a second inlet, a third outlet and a fourth outlet. The second inlet is connected to the cold end flow channel (21), the third outlet is connected to the heating inlet, and the fourth outlet is connected to the first inlet.

7. The drinking water equipment according to claim 6, characterized in that, The drinking water equipment also includes a temperature sensing component, which is disposed on the heating component (40). The temperature sensing component is used to detect the water temperature at the heating inlet and / or the heating outlet. The temperature sensing component is electrically connected to the second diversion structure (30). And / or, a flow meter (70) is provided between the third outlet and the heating inlet, and the flow meter (70) is electrically connected to the second diversion structure (30).

8. The drinking water equipment according to any one of claims 1-5, characterized in that, The drinking water equipment also includes a filter assembly (200), the second outlet is connected to the filter assembly (200), and the outlet end of the filter assembly (200) is connected to the first inlet.

9. The drinking water equipment according to claim 8, characterized in that, The drinking water equipment also includes a water outlet structure (90) and a normal temperature water flow channel (53), wherein the normal temperature water flow channel (53) connects the outlet end of the filter component (200) and the water outlet structure (90).

10. A control method for a drinking water device, characterized in that, The drinking water device applied to any one of claims 1-9, wherein the control method of the drinking water device comprises: Obtain the target temperature of the cooled boiled water required by the user and the outlet temperature of the hot end flow channel (22); Adjust the flow rate of the first outlet according to the target temperature and the outlet water temperature, so that the excess water that enters the first diversion structure (10) through the first inlet flows out through the second outlet.

11. The control method for the drinking water equipment according to claim 10, characterized in that, The drinking water equipment also includes a second diversion structure (30), which includes a second inlet, a third outlet and a fourth outlet. The second inlet is connected to the cold end flow channel (21), the third outlet is connected to the heating inlet, and the fourth outlet is connected to the first inlet. The method for preparing cooled boiled water also includes: Obtain temperature information at the heating inlet and / or the heating outlet; Based on the temperature information, the flow rate of the third outlet is adjusted so that excess water in the cold end channel (21) flows back to the first diversion structure (10) through the fourth outlet.

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