Drinking water device

Abstract

This utility model relates to the field of household appliance technology and discloses a drinking water device, including: a water tank and a water outlet; a hot water system, with both ends of the hot water system connected to the water tank and the water outlet respectively, the hot water system including a hot water circuit and a first heating element connected in series to the hot water circuit; a cold water system, with both ends of the cold water system connected to the water tank and the water outlet respectively, and arranged in parallel with the hot water system, the cold water system including a cold water circuit and a cooling component connected in series to the cold water circuit; a boiled water system, with a first end of the boiled water system connected to the hot water circuit downstream of the first heating element, and a second end of the boiled water system connected to the water outlet, the boiled water system including a boiled water pipe and a cooling structure disposed in the boiled water pipe; and a water circuit switching component, having a first state of connecting the outlet of the first heating element to the water outlet and a second state of connecting the outlet of the first heating element to the boiled water system.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to drinking water equipment. Background Technology

[0002] With increasing demand for healthy drinking water, water dispensers and other similar equipment have gained widespread attention due to their efficiency and convenience. However, some water dispensers in this technology use a mix of hot and cold water lines, leading to temperature fluctuations. During transport, the temperature of the boiled water can fluctuate due to the influence of the hot and cold water lines, affecting its drinking quality. For example, boiled water may be cooled when flowing through a cold water pipe and heated when flowing through a hot water pipe, resulting in unstable outlet water temperature. Utility Model Content

[0003] This invention provides a drinking water device to solve the problem of temperature cross-contamination between cold water, hot water, and boiled water.

[0004] In a first aspect, this utility model provides a drinking water device, comprising: Water tank and water outlet; A hot water system, wherein the two ends of the hot water system are respectively connected to the water tank and the water outlet, and the hot water system includes a hot water circuit and a first heating element connected in series to the hot water circuit; A cold water system, the two ends of which are respectively connected to the water tank and the water outlet, and are arranged in parallel with the hot water system. The cold water system includes a cold water circuit and a refrigeration component connected in series to the cold water circuit. A boiled water system, wherein a first end of the boiled water system is connected to the hot water circuit located downstream of the first heating element, and a second end of the boiled water system is connected to the water outlet. The boiled water system includes a boiled water pipeline and a cooling structure disposed on the boiled water pipeline. The water circuit switching component has a first state in which the outlet of the first heating element is connected to the water outlet, and a second state in which the outlet of the first heating element is connected to the boiled water system.

[0005] Beneficial effects: Because the cold water system and hot water system are connected in parallel, and the hot water circuit and cold water circuit are set up independently, cross-temperature between hot and cold water can be avoided. By setting up a boiled water system, the first end of the boiled water system is connected to the hot water circuit downstream of the first heating element, and the second end of the boiled water system is connected to the water outlet. Therefore, an independent delivery path for boiled water is achieved, avoiding direct contact with cold and hot water, and ensuring that the boiled water is not affected by other water temperatures during delivery, maintaining a stable temperature.

[0006] In one alternative embodiment, the boiled water system further includes a second heating element connected in series with the boiled water pipeline.

[0007] Beneficial effects: The hot water system also includes a second heating element, which is connected in series to the hot water pipeline. Before the hot water is cooled by the cooling structure, the water flow can be reheated by the second heating element and then cooled by the cooling structure before finally flowing out from the outlet, ensuring that the water temperature is suitable.

[0008] In one optional embodiment, the hot water pipeline includes a first hot water pipe section, which is connected to the hot water pipeline downstream of the first heating element. The cooling structure includes an inner pipe and an outer pipe disposed outside the inner pipe. The inlet of the outer pipe is connected to the first hot water pipe section, the outlet of the outer pipe is connected to the inlet of the second heating element, the outlet of the second heating element is connected to the inlet of the inner pipe, and the outlet of the inner pipe is connected to the water outlet.

[0009] Beneficial effects: After the water flows through the first heating element, it is either at room temperature or warm water heated to a certain temperature. Then it flows to the first hot water pipe section, from the first hot water pipe section to the outer pipe, and from the outer pipe it enters the second heating element. After being heated by the second heating element, it flows into the inner pipe. During the process of the hot water flowing through the inner pipe, it exchanges heat with the room temperature water or the warm water at a lower temperature inside the outer pipe to form warm water. Then it flows to the water outlet and flows out of the water outlet for users to drink, which can ensure that the water temperature is suitable.

[0010] In one optional embodiment, the inlet of the first heating element is provided with a first temperature sensing element; And / or, the outlet of the first heating element is provided with a second temperature sensing element; And / or, the inlet of the second heating element is provided with a third temperature sensing element; And / or, the outlet of the second heating element is provided with a fourth temperature sensing element.

[0011] Beneficial effects: By providing a first temperature sensing element at the inlet of the first heating element, a second temperature sensing element at the outlet of the first heating element, a third temperature sensing element at the inlet of the second heating element, and a fourth temperature sensing element at the outlet of the second heating element, it is convenient to control the operation of the first and second heating elements, thereby ensuring that the outlet water temperature is suitable.

[0012] In one optional embodiment, the cold water circuit includes a first cold water pipe section connecting the water tank and the inlet of the refrigeration unit, and a second cold water pipe section connecting the outlet of the refrigeration unit and the water outlet, wherein the second cold water pipe section is equipped with an ice water solenoid valve. The drinking water equipment also includes a connecting pipe that connects the second cold water pipe section and the hot water circuit located downstream of the first heating element, and the connection point between the connecting pipe and the second cold water pipe section is located upstream of the ice water solenoid valve; The water circuit switching component also has a third state in which the outlet of the first heating element is connected to the connecting pipeline.

[0013] Beneficial effects: By setting up connecting pipes, when sterilization of the refrigeration components is required, the water circuit switching component is switched to the third state, the first heating element operates, and the water in the water tank is heated by the first heating element and flows to the connecting pipes. Hot water enters from the outlet of the refrigeration component, flows through the interior of the refrigeration component, and flows out from the inlet of the refrigeration component, flowing back to the water tank. The high-temperature hot water continuously circulates between the water tank, the first heating element, the connecting pipes, and the refrigeration component, thereby achieving high-temperature sterilization. Since the connection point between the connecting pipes and the second cold water pipe section is located upstream of the ice water solenoid valve, hot water will not flow through the ice water solenoid valve. On the one hand, this reduces the damage of hot water to the ice water solenoid valve and the phenomenon of damage to the ice water solenoid valve due to the dual impact of high-temperature and cold water. On the other hand, it reduces the retention of hot water in the ice water solenoid valve, which can lead to cross-temperature phenomena in the water drinking equipment, thus improving the independence between the hot and cold water in the water drinking equipment.

[0014] In one optional embodiment, the water circuit switching component includes a first three-way solenoid valve, the inlet and the first outlet of the first three-way solenoid valve being connected in series to the hot water circuit, and the first end of the boiled water system being connected to the second outlet of the first three-way solenoid valve.

[0015] Beneficial effects: The water circuit switching component includes a first three-way solenoid valve. The inlet and the first outlet of the first three-way solenoid valve are connected in series to the hot water circuit. The first end of the boiled water system is connected to the second outlet of the first three-way solenoid valve. The water circuit switching can be achieved by controlling the first three-way solenoid valve, which is convenient for control.

[0016] In one optional embodiment, the hot water pipeline includes a first hot water pipe section, which is connected to the second outlet of the first three-way solenoid valve. The water circuit switching assembly further includes a second three-way solenoid valve, the inlet of which and the first outlet of which are connected in series to the first hot water pipe section. The connecting pipeline is connected to the second outlet of the second three-way solenoid valve.

[0017] Beneficial effects: When hot water is needed, the inlet and second outlet of the first three-way solenoid valve are connected, and the inlet and first outlet of the second three-way solenoid valve are connected. The water flowing out of the water tank passes through the first heating element and flows to the first hot water pipe section. From the first hot water pipe section, it flows to the outer pipe and then enters the second heating element after flowing out of the outer pipe. After being heated by the second heating element, it flows into the inner pipe. During the process of flowing through the inner pipe, the hot water exchanges heat with the room temperature water or lower temperature warm water inside the outer pipe to form warm water. Then it flows to the water outlet and flows out of the water outlet for the user to drink. When sterilization of the refrigeration components is required, the inlet and second outlet of the first three-way solenoid valve are connected, and the inlet and second outlet of the second three-way solenoid valve are connected simultaneously. The first heating element is activated, and the water in the water tank is heated by the first heating element and flows to the connecting pipe. Hot water enters from the outlet of the refrigeration component, flows through the interior of the refrigeration component, and then flows out from the inlet of the refrigeration component, returning to the water tank. The high-temperature hot water continuously circulates between the water tank, the first heating element, the connecting pipe, and the refrigeration component, thereby achieving high-temperature sterilization.

[0018] In one optional embodiment, the drinking water device further includes a water pump disposed between the water tank and the first heating element, the water pump being used to pump water from the water tank sequentially to the first heating element and the water outlet, and / or to circulate water from the water tank between the first heating element, the cooling element, and the water tank.

[0019] Beneficial effects: On the one hand, the water pump can ensure the normal operation of the hot water system, enabling the drinking water equipment to produce and supply hot water normally. On the other hand, the water pump can ensure the normal operation of high-temperature circulation sterilization, enabling the drinking water equipment to perform high-temperature sterilization and disinfection of the refrigeration components. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a pipeline machine in the prior art; Figure 2 for Figure 1 The diagram shows the pipeline machine performing high-temperature sterilization. Figure 3 This is a schematic diagram of a drinking water device according to an embodiment of the present utility model; Figure 4This is a schematic diagram of a drinking water device in the process of producing hot water according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of a drinking water device in the form of cooling water according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of a drinking water device according to an embodiment of the present invention during the production of boiled water; Figure 7 This is a schematic diagram of a drinking water device under high-temperature sterilization according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: 100', Water dispenser; 10', Water tank; 20', Heating element; 30', Ice tank assembly; 40', Water outlet; 50', First solenoid valve; 60', Second solenoid valve; 70', Self-priming pump; 1. Water tank; 2. Water outlet; 201. Fifth temperature sensing element; 3. Hot water circuit; 301. Hot water outlet section; 4. First heating element; 401. First temperature sensing element; 402. Second temperature sensing element; 5. Cold water circuit; 501. First cold water pipe section; 502. Second cold water pipe section; 5021. First cold water branch section; 5022. Second cold water branch section; 6. Refrigeration components; 7. Hot water circuit; 701. First hot water pipe section; 70 2. Second hot water pipe section; 8. Cooling structure; 801. Inner pipe; 802. Outer pipe; 9. Second heating element; 901. Third temperature sensing element; 902. Fourth temperature sensing element; 10. First connecting pipe; 11. Inlet solenoid valve; 12. Mechanical float assembly; 13. Liquid level switch; 14. Ultraviolet lamp; 15. First three-way solenoid valve; 16. Second three-way solenoid valve; 17. Water pump; 18. Ice water solenoid valve; 19. Connecting pipeline. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] With increasing demand for healthy drinking water, water dispensers and other similar equipment have gained widespread attention due to their efficiency and convenience. However, some water dispensers in this technology use a mix of hot and cold water lines, leading to temperature fluctuations. During transport, the temperature of the boiled water can fluctuate due to the influence of the hot and cold water lines, affecting its drinking quality. For example, boiled water may be cooled when flowing through a cold water pipe and heated when flowing through a hot water pipe, resulting in unstable outlet water temperature.

[0028] In addition, bacteria can easily grow in the internal piping system of drinking water equipment during long-term use, especially when the hot and cold water systems share pipes or the circulation system is poorly designed, the problem of bacterial growth is even more prominent.

[0029] like Figure 1 , Figure 2 As shown, the water dispenser 100' and other drinking water equipment in the related technology include an inlet water system, a water storage system, a hot water system, a cold water system, and a water outlet 40'. The inlet water system consists of a water pipe connecting to an external water source and an inlet solenoid valve; the water storage system consists of a water tank 10', a mechanical float assembly, and a level switch; the hot water system consists of a self-priming pump 70', a heating element 20', and a first solenoid valve 50'; and the cold water system consists of an ice tank assembly 30' and a second solenoid valve 60'. The hot water system and the cold water system are cross-connected and then connected to the water outlet 40'.

[0030] In the actual use of water dispensers such as the 100' pipeline machine, due to the intersection of hot and cold water lines, if the user takes hot water first and then cold water, the temperature of the first cup of cold water will rise. Conversely, if the user takes cold water first and then hot water, the temperature of the first cup of hot water will drop, affecting the user's experience.

[0031] In the high-temperature hot water sterilization mode, hot water passes through the second solenoid valve 60' (outlet) by closing the first solenoid valve 50' (outlet) and opening the second solenoid valve 60' (outlet), allowing the hot water to flow in reverse through the second solenoid valve 60' (outlet), then into the ice tank assembly 30', and then back to the water tank 10', thus completing the high-temperature hot water sterilization of the entire water system. This high-temperature hot water sterilization mode will also affect the user's use of cold water.

[0032] The following is combined with Figures 3 to 7 The following describes embodiments of the present invention.

[0033] According to an embodiment of the present invention, in a first aspect, a drinking water device is provided, comprising: a water tank 1, a water outlet 2, a hot water system, a cold water system, a boiled water system, and a water circuit switching component.

[0034] The hot water system is connected to a water tank 1 and a water outlet 2 at both ends, and includes a hot water path 3 and a first heating element 4 connected in series with the hot water path 3. The cold water system is connected to a water tank 1 and a water outlet 2 at both ends, and is arranged in parallel with the hot water system. The cold water system includes a cold water path 5 and a cooling component 6 connected in series with the cold water path 5. The first end of the boiled water system is connected to the hot water path 3 downstream of the first heating element 4, and the second end of the boiled water system is connected to the water outlet 2. The boiled water system includes a boiled water pipe 7 and a cooling structure 8 located on the boiled water pipe 7. The water path switching component has a first state in which the outlet of the first heating element 4 is connected to the water outlet 2, and a second state in which the outlet of the first heating element 4 is connected to the boiled water system.

[0035] In this embodiment, since the cold water system and the hot water system are connected in parallel, and the hot water path 3 and the cold water path 5 are set independently, cross-temperature between hot and cold water can be avoided. By setting up a boiled water system, the first end of the boiled water system is connected to the hot water path 3 downstream of the first heating element 4, and the second end of the boiled water system is connected to the water outlet 2. Therefore, an independent delivery path for boiled water is achieved, avoiding direct contact with cold and hot water, and ensuring that the boiled water is not affected by other water temperatures during delivery, maintaining a stable temperature.

[0036] Specifically, the water dispenser has three modes: hot water, cold water, and boiled water. In hot water mode, the first heating element 4 operates, and the water circuit switching component switches to the first state. Water flowing from the water tank 1 is heated by the first heating element 4 and then flows to the water outlet 2 for drinking. In cold water mode, water in the water tank 1 flows to the cold water circuit 5, is cooled by the cooling element 6, and then flows to the water outlet 2 for drinking. In boiled water mode, the first heating element 4 operates, and the water circuit switching component switches to the second state. Water flowing from the water tank 1 is heated by the first heating element 4, flows to the boiled water circuit 7, is cooled by the boiled water circuit 7, and then flows to the water outlet 2 for drinking.

[0037] Specifically, the drinking water equipment of this utility model embodiment includes a water inlet system, a water storage system, a hot water system, a cold water system, a boiled water system, and a water outlet 2. The water inlet system mainly consists of a first connecting pipe 10 connected to an external water source and an inlet solenoid valve 11; the water storage system mainly consists of a water tank 1, a mechanical float assembly 12, a level switch 13, and an ultraviolet lamp assembly 14. The hot water system mainly consists of a water pump 17 and a first heating element 4; the cold water system mainly consists of a cooling element 6 and an ice water solenoid valve 18. The water outlet 2 has two inlets and one outlet, with the two inlets connected to the hot water circuit 3 and the cold water circuit 5, respectively.

[0038] In one specific embodiment, the water circuit switching component includes a first three-way solenoid valve 15. The inlet and the first outlet of the first three-way solenoid valve 15 are connected in series to the hot water circuit 3. The first end of the boiled water system is connected to the second outlet of the first three-way solenoid valve 15. When the first three-way solenoid valve 15 is in the first working state, the inlet and the first outlet of the first three-way solenoid valve 15 are connected.

[0039] like Figure 4 As shown, when hot water is drawn, the water flow path is: water tank 1 → water pump 17 → first heating element 4 → first three-way solenoid valve 15 (first outlet) → water outlet 2. At this time, the first three-way solenoid valve 15 is in its first working state, and the power for the hot water system comes from the water pump 17.

[0040] like Figure 5 As shown, when taking cold water, the water flow path is: water tank 1 → refrigeration unit 6 → ice water solenoid valve 18 → water outlet 2. The water level in water tank 1 is higher than the height of refrigeration unit 6 and water outlet 2. When the user takes cold water, the ice water solenoid valve 18 opens, and the water flows out naturally under gravity.

[0041] like Figure 6As shown, when taking boiled water, the water flow path is: water tank 1 → water pump 17 → first heating element 4 → first three-way solenoid valve 15 (second outlet) → cooling structure 8 → water outlet 2.

[0042] It should be noted that the specific structure of the hot water system and the chilled water system includes multiple embodiments. For example, the hot water system includes electric heating, gas heating, etc., and the refrigeration component 6 of the chilled water system includes electronic ice tank refrigeration and semiconductor refrigeration, etc. These adjustments are all within the protection scope of the embodiments of this application.

[0043] In one embodiment, the hot water system further includes a second heating element 9, which is connected in series to the hot water pipeline 7.

[0044] In this embodiment, the hot water system also includes a second heating element 9, which is connected in series to the hot water pipe 7. Before the hot water is cooled by the cooling structure 8, the water flow can be reheated by the second heating element 9 and then cooled by the cooling structure 8 before finally flowing out from the water outlet 2, ensuring that the water temperature is suitable.

[0045] In one embodiment, the hot water pipe 7 includes a first hot water pipe section 701, which is connected to the hot water pipe 3 downstream of the first heating element 4. The cooling structure 8 includes an inner pipe 801 and an outer pipe 802 located outside the inner pipe 801. The inlet of the outer pipe 802 is connected to the first hot water pipe section 701, the outlet of the outer pipe 802 is connected to the inlet of the second heating element 9, the outlet of the second heating element 9 is connected to the inlet of the inner pipe 801, and the outlet of the inner pipe 801 is connected to the water outlet 2.

[0046] In this embodiment, the water flows through the first heating element 4 and is either at room temperature or warm water heated to a certain temperature. It then flows to the first hot water pipe section 701, from the first hot water pipe section 701 to the outer pipe 802, and after flowing out of the outer pipe 802, it enters the second heating element 9. After being heated by the second heating element 9, it flows into the inner pipe 801. During the process of flowing through the inner pipe 801, the hot water exchanges heat with the room temperature water or the warm water at a lower temperature inside the outer pipe 802 to form warm boiled water. Then it flows to the water outlet 2 and flows out of the water outlet 2 for the user to drink, which can ensure that the water temperature is suitable.

[0047] It should be noted that the greater the temperature difference between the outer tube 802 and the inner tube 801, the more significant the cooling effect. In this embodiment, the water temperature is ensured to be suitable by exchanging heat with the room temperature water or warm water after the first heating element 4 after the second heating element 9 has heated the water twice.

[0048] In one embodiment, the inlet of the first heating element 4 is provided with a first temperature sensing element 401; and / or, the outlet of the first heating element 4 is provided with a second temperature sensing element 402; and / or, the inlet of the second heating element 9 is provided with a third temperature sensing element 901; and / or, the outlet of the second heating element 9 is provided with a fourth temperature sensing element 902.

[0049] In this embodiment, by providing a first temperature sensing element 401 at the inlet of the first heating element 4, a second temperature sensing element 402 at the outlet of the first heating element 4, a third temperature sensing element 901 at the inlet of the second heating element 9, and a fourth temperature sensing element 902 at the outlet of the second heating element 9, it is convenient to control the operation of the first heating element 4 and the second heating element 9, thereby ensuring that the outlet water temperature is suitable.

[0050] In a preferred embodiment, the inlet of the first heating element 4 is provided with a first temperature sensing element 401, the outlet of the first heating element 4 is provided with a second temperature sensing element 402, the inlet of the second heating element 9 is provided with a third temperature sensing element 901, and the outlet of the second heating element 9 is provided with a fourth temperature sensing element 902.

[0051] In one embodiment, the hot water pipeline 7 further includes a second hot water pipeline section 702, the first end of which is connected to the outlet of the inner pipe 801, and the second end of which is connected to the water outlet 2.

[0052] In one embodiment, the cold water circuit 5 includes a first cold water pipe section 501 connecting the inlet of the water tank 1 and the refrigeration unit 6, and a second cold water pipe section 502 connecting the outlet of the refrigeration unit 6 and the water outlet 2. The second cold water pipe section 502 is equipped with an ice water solenoid valve 18. The drinking water device also includes a connecting pipe 19 connecting the second cold water pipe section 502 and the hot water circuit 3 located downstream of the first heating element 4. The connection point between the connecting pipe 19 and the second cold water pipe section 502 is located upstream of the ice water solenoid valve 18. The water circuit switching component also has a third state in which the outlet of the first heating element 4 is connected to the connecting pipe 19.

[0053] In this embodiment, by setting up the connecting pipe 19, when sterilization of the refrigeration component 6 is required, the water circuit switching component is switched to the third state, such as... Figure 7 As shown, when the first heating element 4 is working, the water in the water tank 1 is heated by the first heating element 4 and flows to the connecting pipe 19. The hot water enters from the outlet of the cooling element 6, flows through the interior of the cooling element 6, and then flows out from the inlet of the cooling element 6, returning to the water tank 1. The high-temperature hot water continuously circulates between the water tank 1, the first heating element 4, the connecting pipe 19, and the cooling element 6, thereby achieving high-temperature sterilization. Since the connection point between the connecting pipe 19 and the second cold water pipe section 502 is located upstream of the ice water solenoid valve 18, the hot water will not flow through the ice water solenoid valve 18. On the one hand, this reduces the damage of the hot water to the ice water solenoid valve 18 and reduces the phenomenon of the ice water solenoid valve 18 being damaged by the dual impact of high-temperature water and cold water. On the other hand, it reduces the retention of hot water in the ice water solenoid valve 18, which would cause the phenomenon of hot and cold water cross-temperature in the water drinking equipment, thus improving the independence between the hot and cold water in the water drinking equipment.

[0054] In one specific embodiment, the connection point between the connecting pipe 19 and the second cold water pipe section 502 is located near the outlet of the refrigeration component 6.

[0055] In one specific embodiment, the water outlet 2 is provided with a hot water inlet and an ice water inlet. The hot water circuit 3 includes a hot water outlet section 301 connected to the first outlet of the first three-way solenoid valve 15. The hot water outlet section 301 is connected to the hot water inlet of the water outlet 2. The second cold water pipe section 502 includes a first cold water branch section 5021 located upstream of the ice water solenoid valve 18 and a second cold water branch section 5022 located downstream of the ice water solenoid valve 18. The second cold water branch section 5022 is connected to the ice water inlet of the water outlet 2.

[0056] In existing technologies, due to the crossover of hot and cold water circuits, if a user takes hot water first and then cold water, the temperature of the first cup of cold water will rise; conversely, if a user takes cold water first and then hot water, the temperature of the first cup of hot water will drop, affecting the user experience. This embodiment separates the hot water outlet section 301 and the second cold water branch section 5022, each connected to the water outlet 2, reducing the phenomenon of cross-temperature mixing between hot and cold water in the water dispenser.

[0057] Furthermore, in order to improve the user's water intake experience and water intake safety, this application embodiment also proposes to set the diameter of the hot water inlet of the water outlet 2 to be larger than the diameter of the ice water inlet of the water outlet 2, so as to achieve rapid cold water intake, thereby improving water intake efficiency, and slow hot water intake, thereby reducing the phenomenon of hot water splashing or overflowing.

[0058] In one embodiment, the water circuit switching component includes a first three-way solenoid valve 15, the inlet and the first outlet of the first three-way solenoid valve 15 being connected in series to the hot water circuit 3, and the first end of the boiled water system being connected to the second outlet of the first three-way solenoid valve 15.

[0059] In this embodiment, the water circuit switching component includes a first three-way solenoid valve 15. The inlet and the first outlet of the first three-way solenoid valve 15 are connected in series to the hot water circuit 3. The first end of the boiled water system is connected to the second outlet of the first three-way solenoid valve 15. The water circuit switching can be achieved by controlling the first three-way solenoid valve 15, which is convenient for control.

[0060] In one specific embodiment, when the first three-way solenoid valve 15 is in the first working state, the inlet of the first three-way solenoid valve 15 and the first outlet of the first three-way solenoid valve 15 are connected; when the first three-way solenoid valve 15 is in the second working state, the inlet of the first three-way solenoid valve 15 and the second outlet of the first three-way solenoid valve 15 are connected.

[0061] In other alternative embodiments, the portion of the hot water circuit 3 downstream of the first heating element 4 can be divided into a first hot water pipe section and a second hot water pipe section according to the water flow direction. The first hot water pipe section 701 forms a tee pipe with the first hot water pipe section and the second hot water pipe section. Switch valves can be installed on the second hot water pipe section and the first hot water pipe section 701 respectively. The switching of the water circuit can be achieved by controlling the switch valves installed on the second hot water pipe section and the first hot water pipe section 701.

[0062] In one embodiment, the hot water pipeline 7 includes a first hot water pipeline section 701, which is connected to the second outlet of the first three-way solenoid valve 15. The water circuit switching assembly also includes a second three-way solenoid valve 16, the inlet of which is connected in series with the first outlet of which is connected in series with the first hot water pipeline section 701. The connecting pipeline 19 is connected to the second outlet of the second three-way solenoid valve 16.

[0063] In this embodiment, when boiled water is needed, the inlet and second outlet of the first three-way solenoid valve 15 are connected, and the inlet and first outlet of the second three-way solenoid valve 16 are connected. The water flowing out of the water tank 1 passes through the first heating element 4 and flows to the first boiled water pipe section 701. From the first boiled water pipe section 701, it flows to the outer pipe 802. After flowing out of the outer pipe 802, it enters the second heating element 9. After being heated by the second heating element 9, it flows into the inner pipe 801. During the process of flowing through the inner pipe 801, the hot water exchanges heat with the room temperature water or lower temperature warm water inside the outer pipe 802 to form warm boiled water. Then it flows to the water outlet 2 and flows out of the water outlet 2 for the user to drink. When sterilization of the refrigeration component 6 is required, the inlet and second outlet of the first three-way solenoid valve 15 are connected, and the inlet and second outlet of the second three-way solenoid valve 16 are connected simultaneously. The first heating element 4 is activated, and the water in the water tank 1 is heated by the first heating element 4 and flows to the connecting pipe 19. The hot water enters from the outlet of the refrigeration component 6, flows through the interior of the refrigeration component 6, and flows out from the inlet of the refrigeration component 6, returning to the water tank 1. The high-temperature hot water continuously circulates between the water tank 1, the first heating element 4, the connecting pipe 19, and the refrigeration component 6, thereby achieving high-temperature sterilization.

[0064] In one specific embodiment, when the second three-way solenoid valve 16 is in the third working state, the inlet of the second three-way solenoid valve 16 and the first outlet of the second three-way solenoid valve 16 are connected; when the second three-way solenoid valve 16 is in the fourth working state, the inlet of the second three-way solenoid valve 16 and the second outlet of the second three-way solenoid valve 16 are connected.

[0065] In other alternative embodiments, the connecting pipe 19 can be directly connected to the hot water circuit 3 located downstream of the first heating element 4, and a switch valve can be installed on the connecting pipe 19 to control whether the high-temperature sterilization function is activated by controlling the opening and closing of the switch valve.

[0066] In one embodiment, the drinking water device further includes a water pump 17 disposed between the water tank 1 and the first heating element 4. The water pump 17 is used to pump the water in the water tank 1 sequentially to the first heating element 4 and the water outlet 2, and / or to circulate the water in the water tank 1 between the first heating element 4, the cooling element 6, and the water tank 1.

[0067] In this embodiment, the water pump 17 can, on the one hand, enable the hot water system to operate normally, allowing the drinking water equipment to produce and supply hot water normally; on the other hand, the water pump 17 can also enable the high-temperature circulating sterilization to operate normally, allowing the drinking water equipment to perform high-temperature sterilization and disinfection on the refrigeration component 6 normally.

[0068] In one embodiment, the spout 2 is provided with a fifth temperature sensing element 201, which can detect the water temperature at the spout 2.

[0069] According to an embodiment of the present invention, in a second aspect, a control method for a drinking water device is provided, applied to the drinking water device provided in the above embodiments, the control method comprising: Obtain operating instructions from the water supply equipment; If the working instruction is to produce hot water, control the first heating element 4 to work and control the water circuit switching component to switch to the first state; If the working command is chilled water, control the ice water solenoid valve 18 to open; If the working instruction is to make boiled water, control the first heating element 4 to work and control the water circuit switching component to switch to the second state; If the working instruction is high-temperature sterilization, control the first heating element 4 to work and control the water circuit switching component to switch to the third state.

[0070] In this embodiment, if the working command is to cool water, the ice water solenoid valve 18 is opened, and the water in the water tank 1 flows to the cold water circuit 5. After being cooled by the cooling component 6, it flows to the water outlet 2 and is then dispensed for drinking by the user. If the working command is to make hot water, the first heating element 4 is activated, and the water circuit switching component is switched to the first state. The water flowing from the water tank 1 is heated by the first heating element 4 and then flows to the water outlet 2 and is dispensed for drinking by the user. If the working command is to make boiled water, the first heating element 4 is activated, and the water circuit switching component is switched to the second state. The water flowing from the water tank 1 is heated by the first heating element 4 and then flows to the boiled water circuit 7. After being cooled by the boiled water circuit 7, it becomes boiled water and flows to the water outlet 2 and is dispensed for drinking by the user. If the operating command is high-temperature sterilization, the first heating element 4 is activated, and the water circuit switching component is switched to the third state. The first heating element 4 operates, and the water in the water tank 1, after being heated by it, flows to the connecting pipe 19. The hot water enters from the outlet of the cooling element 6, flows through its interior, and then exits from its inlet back to the water tank 1. The high-temperature hot water continuously circulates between the water tank 1, the first heating element 4, the connecting pipe 19, and the cooling element 6, thus achieving high-temperature sterilization. Therefore, it can meet different needs and avoid the phenomenon of temperature cross-contamination.

[0071] In one specific embodiment, the water circuit switching component includes a first three-way solenoid valve 15 and a second three-way solenoid valve 16. The inlet and first outlet of the first three-way solenoid valve 15 are connected in series to the hot water circuit 3. The first end of the boiled water system is connected to the second outlet of the first three-way solenoid valve 15. When the first three-way solenoid valve 15 is in a first working state, the inlet and the first outlet of the first three-way solenoid valve 15 are connected. When the first three-way solenoid valve 15 is in a second working state, the inlet and the first outlet of the first three-way solenoid valve 16 are connected. The second outlet of the first three-way solenoid valve 15 is connected; the inlet of the second three-way solenoid valve 16 and the first outlet of the second three-way solenoid valve 16 are connected in series to the first hot water pipe section 701, and the connecting pipe 19 is connected to the second outlet of the second three-way solenoid valve 16. When the second three-way solenoid valve 16 is in the third working state, the inlet of the second three-way solenoid valve 16 and the first outlet of the second three-way solenoid valve 16 are connected. When the second three-way solenoid valve 16 is in the fourth working state, the inlet of the second three-way solenoid valve 16 and the second outlet of the second three-way solenoid valve 16 are connected.

[0072] Specifically, controlling the water circuit switching component to switch to the second state includes: controlling the first three-way solenoid valve 15 to switch to the second operating state, and controlling the second three-way solenoid valve 16 to switch to the third operating state. Controlling the water circuit switching component to switch to the third state includes: controlling the first three-way solenoid valve 15 to switch to the second operating state, and controlling the second three-way solenoid valve 16 to switch to the fourth operating state.

[0073] According to an embodiment of the present invention, in a third aspect, a computer-readable storage medium is provided, which stores computer instructions that, when executed, implement the control method for the drinking water device provided in the above embodiments.

[0074] In this embodiment, the computer-readable storage medium provided in this embodiment, by adopting the control method of the drinking water device of the above-described embodiments, has all the technical effects of the control method of the drinking water device described above. The specific technical effects of the computer-readable storage medium will not be elaborated here.

[0075] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A drinking water device, characterized in that, include: Water tank (1) and water outlet (2); A hot water system, the two ends of which are respectively connected to the water tank (1) and the water outlet (2), the hot water system includes a hot water circuit (3) and a first heating element (4) connected in series to the hot water circuit (3); The cold water system is connected to the water tank (1) and the water outlet (2) at both ends, and is set in parallel with the hot water system. The cold water system includes a cold water circuit (5) and a refrigeration component (6) connected in series to the cold water circuit (5). A boiled water system, wherein the first end of the boiled water system is connected to the hot water circuit (3) at a position downstream of the first heating element (4), and the second end of the boiled water system is connected to the water outlet (2). The boiled water system includes a boiled water pipeline (7) and a cooling structure (8) provided on the boiled water pipeline (7). The water circuit switching component has a first state in which the outlet of the first heating element (4) is connected to the water outlet (2), and a second state in which the outlet of the first heating element (4) is connected to the boiled water system.

2. The drinking water equipment according to claim 1, characterized in that, The boiled water system also includes a second heating element (9), which is connected in series to the boiled water pipeline (7).

3. The drinking water equipment according to claim 2, characterized in that, The hot water pipeline (7) includes a first hot water pipe section (701), which is connected to the hot water pipeline (3) at a position downstream of the first heating element (4). The cooling structure (8) includes an inner pipe (801) and an outer pipe (802) located outside the inner pipe (801). The inlet of the outer pipe (802) is connected to the first hot water pipe section (701), the outlet of the outer pipe (802) is connected to the inlet of the second heating element (9), the outlet of the second heating element (9) is connected to the inlet of the inner pipe (801), and the outlet of the inner pipe (801) is connected to the water outlet (2).

4. The drinking water equipment according to claim 2, characterized in that, The inlet of the first heating element (4) is provided with a first temperature sensing element (401). And / or, the outlet of the first heating element (4) is provided with a second temperature sensing element (402). And / or, the inlet of the second heating element (9) is provided with a third temperature sensing element (901); And / or, the outlet of the second heating element (9) is provided with a fourth temperature sensing element (902).

5. The drinking water equipment according to any one of claims 1 to 4, characterized in that, The cold water circuit (5) includes a first cold water pipe section (501) connecting the inlet of the water tank (1) and the refrigeration component (6), and a second cold water pipe section (502) connecting the outlet of the refrigeration component (6) and the water outlet (2). The second cold water pipe section (502) is equipped with an ice water solenoid valve (18). The drinking water equipment also includes a connecting pipe (19) that connects the second cold water pipe section (502) and the hot water circuit (3) located downstream of the first heating element (4), and the connection point between the connecting pipe (19) and the second cold water pipe section (502) is located upstream of the ice water solenoid valve (18). The water circuit switching component also has a third state in which the outlet of the first heating element (4) is connected to the connecting pipe (19).

6. The drinking water equipment according to claim 5, characterized in that, The water circuit switching component includes a first three-way solenoid valve (15), the inlet of the first three-way solenoid valve (15) and the first outlet of the first three-way solenoid valve (15) are connected in series to the hot water circuit (3), and the first end of the boiled water system is connected to the second outlet of the first three-way solenoid valve (15).

7. The drinking water equipment according to claim 6, characterized in that, The hot water pipeline (7) includes a first hot water pipeline section (701), which is connected to the second outlet of the first three-way solenoid valve (15). The water circuit switching assembly also includes a second three-way solenoid valve (16), the inlet of the second three-way solenoid valve (16) and the first outlet of the second three-way solenoid valve (16) are connected in series to the first hot water pipeline section (701). The connecting pipeline (19) is connected to the second outlet of the second three-way solenoid valve (16).

8. The drinking water equipment according to claim 5, characterized in that, The drinking water equipment also includes a water pump (17) disposed between the water tank (1) and the first heating element (4). The water pump (17) is used to pump the water in the water tank (1) sequentially to the first heating element (4) and the water outlet (2), and / or to circulate the water in the water tank (1) between the first heating element (4), the cooling element (6), and the water tank (1).

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