Water dispenser

Abstract

The utility model discloses a water dispenser which comprises a water inlet device, a heating device, a refrigerating device and a water outlet device, and a first water inlet end of the heating device is connected with the water inlet device. A second water inlet end of the refrigerating device is connected with the water inlet device; the water outlet device is connected with the first water outlet end of the heating device and the second water outlet end of the refrigerating device. According to the water dispenser, the heating device and the refrigerating device are arranged and connected with the water outlet device, cold water or hot water can be supplied through the water outlet device, the water supply temperature can be adjusted according to needs, and the water dispenser is convenient for a user to use.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a water dispenser. Background Technology

[0002] Water dispensers with relevant technologies are usually equipped with cold water outlets and hot water outlets to provide cold and hot water respectively. During use, users need to determine whether to place water cups or other water containers at the cold water outlet or the hot water outlet, which is inconvenient. Utility Model Content

[0003] Therefore, one objective of this utility model is to provide a water dispenser.

[0004] The water dispenser according to an embodiment of the present invention includes: a water inlet device, a heating device, a cooling device, and a water outlet device. The first water inlet end of the heating device is connected to the water inlet device; the second water inlet end of the cooling device is connected to the water inlet device; and the water outlet device is connected to the first water outlet end of the heating device and the second water outlet end of the cooling device.

[0005] The water dispenser according to this utility model embodiment is equipped with a heating device and a cooling device, and the heating device and the cooling device are connected to a water outlet device. Cold water or hot water can be supplied through the water outlet device, and the water supply temperature can be rotated as needed for user convenience.

[0006] In addition, the water dispenser according to the above embodiments of this utility model may also have the following additional technical features:

[0007] In some embodiments, the water dispenser further includes a drainage device connected to the first water outlet of the heating device and / or the second water outlet of the cooling device, the drainage device being selectively activated to drain water.

[0008] In some embodiments, the drainage device includes a hot water discharge path and a hot water discharge valve. One end of the hot water discharge path is connected between the heating device and the water outlet device, and the other end is used for drainage. The hot water discharge valve controls the opening and closing of the hot water discharge path.

[0009] In some embodiments, the water dispenser further includes a hot water valve connected in series between the heating device and the water dispensing device;

[0010] The water dispenser also includes a first controller, which is communicatively connected to the hot water drain valve and the hot water valve. The first controller is configured to control the hot water drain valve to open for a first preset time during the water dispensing process before opening the hot water valve.

[0011] Alternatively, the water dispenser may further include a second controller and a temperature monitoring device. The temperature monitoring device is used to monitor the outlet water temperature value of the water dispensing device. The second controller is communicatively connected to the temperature monitoring device, the hot water drain valve, and the hot water valve. The second controller is configured to control the hot water drain valve to open when the outlet water temperature value is less than a preset temperature value during water dispensing, and to control the hot water valve to open when the outlet water temperature value is greater than or equal to the preset temperature value.

[0012] In some embodiments, the water dispenser further includes a cold water valve, which is connected in series between the refrigeration unit and the water dispensing device.

[0013] The water dispenser includes a third controller, which is communicatively connected to the cold water discharge valve and the cold water valve. The third controller is configured to control the cold water discharge valve to open for a second preset time during the water dispensing process before opening the cold water valve.

[0014] Alternatively, the water dispenser may include a fourth controller, which is communicatively connected to the cold water drain valve and the cold water valve. The fourth controller is configured to control the cold water drain valve to open when predetermined conditions are met, the predetermined conditions including the water dispenser being idle for a third preset duration and / or the refrigeration device being idle for a fourth preset duration.

[0015] In some embodiments, the refrigeration device includes: a cold tank having a first inlet and a first outlet; and a refrigeration module configured to refrigerate the fluid within the cold tank using a refrigerant phase change.

[0016] In some embodiments, the refrigeration module includes an evaporator arranged circumferentially along the cold tank.

[0017] In some embodiments, the heating device includes a water pump and an instant heater, the water pump and the instant heater being connected in series;

[0018] And / or, the heating device includes an instant heater, the instant heater includes a heating tube and a flow guide, the heating tube has a second inlet and a second outlet, the flow guide is disposed inside the heating tube and forms a meandering or spiral flow channel inside the heating tube, the flow channel connecting the second inlet and the second outlet.

[0019] In some embodiments, the water dispenser further includes a room temperature water flow path, with a third inlet end of the room temperature water flow path connected to the water inlet device, and a third outlet end of the room temperature water flow path connected to the water outlet device.

[0020] In some embodiments, the water outlet device includes a water outlet nozzle and a flow limiting valve, the flow limiting valve being connected in series with the water outlet nozzle, and the first water outlet end of the heating device and the second water outlet end of the cooling device being connected to the flow limiting valve.

[0021] In some embodiments, the water inlet device includes a filter, and the filter, the heating device, and the cooling device are distributed in a front-to-back direction;

[0022] And / or, the water inlet device includes a filter, which is located at the front end of the water dispenser;

[0023] And / or, the water outlet device includes a water outlet nozzle, which is located at the front end of the water dispenser;

[0024] And / or, a negative pressure valve and / or a capacitive sensor are provided between the heating device and the water inlet device;

[0025] And / or, a zero-pressure valve is provided between the refrigeration device and the water inlet device;

[0026] And / or, a sterilization module is provided between the refrigeration unit and the water outlet unit;

[0027] And / or, the water inlet device includes a pressure reducing valve, a leakage protector, a filter, an inlet valve, and / or a flow meter.

[0028] In some embodiments, the water inlet device includes a filter, the filter including a first filter element and a second filter element, the first filter element and the second filter element being connected in series, and a faucet interface being provided between the first filter element and the second filter element. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the flow path of a water dispenser according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the flow path of a water dispenser according to an embodiment of the present invention.

[0031] Figure label:

[0032] Water dispenser 100, water inlet device 10, heating device 20, cooling device 30, water outlet device 40, sterilization device 50, pressure reducing valve 11, leakage protector 12, first filter element 131, second filter element 132, water inlet valve 14, flow meter 15, negative pressure valve 21, capacitive sensor 22, water pump 23, instant heater 24, hot water valve 25, zero pressure valve 31, cold tank 32, compressor 331, evaporator 332, capillary tube 333, condenser 334, cold water valve 34, water outlet 41, flow limiting valve 42, hot water drain path 61, hot water drain valve 62, cold water drain path 63, cold water drain valve 64, normal temperature water path 71, warm water valve 72, bypass path 81, one-way valve 82, faucet 200. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] like Figure 1 and Figure 2 The water dispenser 100 according to an embodiment of the present invention includes: a water inlet device 10, a heating device 20, a cooling device 30, and a water outlet device 40. The water inlet device 10 is used to connect to a water source. The water inlet device 10 can be configured to treat the water before sending it to the cooling device 30 or the heating device 20, or it can be configured to guide the water to the cooling device 30 or the heating device 20 without treatment. Of course, the water inlet device 10 of the present invention can also be configured in other forms. The heating device 20 is used to heat the water supplied by the water inlet device 10 to increase the water temperature or to use high temperature for sterilization or disinfection. The cooling device 30 is used to cool the water to lower the water temperature for easier drinking. The water outlet device 40 is used to supply water to the user. A water cup or similar object can be placed in the position corresponding to the water outlet device 40 to receive the water supplied from it.

[0035] The heating device 20 may have a first inlet and a first outlet. During the flow of water from the first inlet to the first outlet, the heating device 20 heats the water. The first inlet of the heating device 20 is connected to the inlet device 10, and the first outlet of the heating device 20 is connected to the outlet device 40. The cooling device 30 may have a second inlet and a second outlet. During the flow of water from the second inlet to the second outlet, the cooling device 30 cools the water. The second inlet of the cooling device 30 is connected to the inlet device 10, and the second outlet of the cooling device 30 is connected to the outlet device 40.

[0036] The water dispenser 100 according to this utility model embodiment is provided with a heating device 20 and a cooling device 30, and the heating device 20 and the cooling device 30 are connected to a water outlet device 40. Cold water or hot water can be supplied through the water outlet device 40, and the water supply temperature can be rotated as needed for user convenience.

[0037] During the use of the water dispenser 100, in some situations, it is necessary to drain the water in the heating device 20, the water in the cooling device 30, the water between the heating device 20 and the water outlet device 40, and the water between the cooling device 30 and the water outlet device 40. In these cases, the water that needs to be drained can be discharged in other ways instead of through the water outlet device 40. For example, during the cleaning process inside the water dispenser 100, wastewater generated during the cleaning process can be drained; or during the disinfection and sterilization process, wastewater after disinfection and sterilization can be drained; or during the hot water dispensing process, water that has not been heated to the predetermined temperature can be drained. Therefore, this utility model also includes a drainage device for draining the water in the heating device 20 and / or the cooling device 30 to meet different usage needs. Of course, the drainage device in this utility model is provided to offer a better user experience and is not intended to limit the scope of protection of this utility model.

[0038] like Figure 1 and Figure 2 In some embodiments, the water dispenser 100 also includes a drainage device connected to a first water outlet of the heating device 20 and / or a second water outlet of the cooling device 30. The drainage device is selectively activated to drain water. The drainage device can be used to drain the internal flow channels of the water dispenser 100 to meet different usage needs, such as draining stale water or unboiled hot water. These include, but are not limited to, the following embodiments.

[0039] Implementation Method 1

[0040] like Figure 1 and Figure 2 The drainage device includes a hot water discharge path and a hot water discharge valve. One end of the hot water discharge path is connected between the heating device 20 and the water outlet device 40, and the other end is used for drainage. The hot water discharge valve controls the opening and closing of the hot water discharge path. The hot water discharge valve can have an open state and a closed state. In the open state, it controls the hot water discharge path to open, allowing water from the heating module to be discharged through the hot water discharge path; in the closed state, it controls the hot water discharge path to close, preventing water from the heating device 20 from being discharged through the hot water discharge path.

[0041] In addition, the water dispenser 100 includes a hot water valve 25, which is connected in series between the heating device 20 and the water outlet device 40. When the hot water valve 25 is open, the water in the heating device 20 can be sent to the water outlet device 40 after passing through the hot water valve 25 for user use; when the hot water valve 25 is closed, the water in the heating device 20 cannot be sent to the water outlet device 40 through the hot water discharge path.

[0042] In combination with the foregoing, in one state, the hot water valve 25 is closed and the hot water drain valve is open, and the water after passing through the heating device 20 will be discharged through the hot water drain path; in another state, the hot water valve 25 is open and the hot water drain valve is closed, and the water after passing through the heating device 20 will be sent out from the water outlet device 40 through the hot water valve 25.

[0043] The hot water valve 25 and the hot water drain valve can be integrated into a first reversing valve. This first reversing valve may have a first interface, a second interface, and a third interface. The first interface connects to the heating device 20, the second interface connects to the water outlet device 40, and the third interface connects to the hot water drain path. The first interface selectively connects to the second and third interfaces, thereby controlling the flow direction of the water heated by the heating device 20 through the first reversing valve. Of course, the hot water valve 25 and the hot water drain valve can be either on / off valves or solenoid valves, etc.

[0044] As mentioned above, the flow direction of the fluid can be controlled by setting up a hot water discharge path in this invention. Using this structure, it is possible to achieve 100% zero cold water in the water dispenser. Examples include, but are not limited to, the following.

[0045] In some examples, the water dispenser 100 also includes a first controller, which is communicatively connected to a hot water drain valve and a hot water valve 25. The first controller is configured to control the hot water drain valve to open for a first preset time before opening the hot water valve 25 during water dispensing. For a period of time after the user begins dispensing water, the first controller can open the hot water drain valve and close the hot water valve 25. After the first preset time, the cold water remaining in the heating device 20 and / or between the heating device 20 and the water outlet device 40 will be discharged. The first controller can then open the hot water valve 25 and close the hot water drain valve, allowing the heated water in the heating device 20 to be sent to the water outlet device 40 through the hot water valve 25, thereby providing hot water to the user. The first preset time in this invention can be set from 0.1s to 100s, and can be set according to the heating power of the heating device 20, the inlet water temperature of the inlet device 10, etc.

[0046] In other examples, the water dispenser 100 also includes a second controller and a temperature monitoring device. The temperature monitoring device is used to monitor the outlet water temperature value of the water dispensing device 40. The second controller is communicatively connected to the temperature monitoring device, the hot water drain valve, and the hot water valve 25. The second controller is configured to control the hot water drain valve to open when the outlet water temperature value is less than a preset temperature value during water dispensing, and to control the hot water valve 25 to open when the outlet water temperature value is greater than or equal to the preset temperature value. During the initial period when the user begins drawing water, the cold water remaining in the heating device 20 causes the outlet water temperature of the outlet device 40 to be lower than the preset temperature value. When the temperature monitoring device detects that the current outlet water temperature is lower than the preset temperature value, the second controller opens the hot water drain valve and closes the hot water valve 25, thereby draining the cold water remaining in the heating device 20. After a predetermined period, the cold water remaining in the heating device 20 and / or between the heating device 20 and the outlet device 40 will be drained. At this time, the outlet water temperature will rise to the preset temperature value. The first controller then opens the hot water valve 25 and closes the hot water drain valve. The heated water in the heating device 20 will be sent to the outlet device 40 through the hot water valve 25, thereby providing hot water to the user. The preset temperature value can be set from 20℃ to 100℃, etc., and can be set according to the heating power of the heating device 20, the required outlet water temperature, and the inlet water temperature value of the inlet device 10. Preferably, the preset temperature value can be set to greater than 95°C or set to 100°C, so as to fully heat, disinfect and sterilize the water delivered by the water inlet device 10.

[0047] The above settings prevent the water dispenser 100 from having a low initial water temperature, thus optimizing the heating device 20 and ensuring that the water used by the user is fully heated, safe, and hygienic. Of course, the above description is merely some examples of this utility model and is not intended to limit the scope of protection of this utility model.

[0048] Implementation Method 2

[0049] like Figure 1 and Figure 2 The drainage device includes a cold water discharge path and a cold water discharge valve. One end of the cold water discharge path is connected between the refrigeration unit 30 and the water outlet device 40, and the other end is used for drainage. The cold water discharge valve controls the opening and closing of the cold water discharge path. The cold water discharge valve can have an open state and a closed state. In the open state, it controls the cold water discharge path to open, allowing water from the refrigeration module to be discharged through the cold water discharge path. In the closed state, it controls the cold water discharge path to close, preventing water from the refrigeration unit 30 from being discharged through the cold water discharge path.

[0050] The water dispenser 100 also includes a cold water valve 34, which is connected in series between the refrigeration unit 30 and the water outlet device 40. When the cold water valve 34 is open, the water in the refrigeration unit 30 can be sent to the water outlet device 40 after passing through the cold water valve 34 for user use; when the cold water valve 34 is closed, the water in the refrigeration unit 30 cannot be sent to the water outlet device 40 through the hot water discharge path.

[0051] In combination with the foregoing, in one state, the cold water valve 34 is closed and the cold water drain valve is open, and the water after passing through the refrigeration unit 30 will be discharged through the cold water drain path; in another state, the cold water valve 34 is open and the cold water drain valve is closed, and the water after passing through the refrigeration unit 30 will be sent out from the water outlet device 40 through the cold water valve 34.

[0052] The cold water valve 34 and the cold water discharge valve can be integrated into a second reversing valve. This second reversing valve can have a fourth, fifth, and sixth interface. The fourth interface connects to the refrigeration unit 30, the fifth interface connects to the water outlet device 40, and the sixth interface connects to the cold water discharge path. The fourth interface can selectively connect to the fifth and sixth interfaces, thereby controlling the flow direction of the cooled water from the refrigeration unit 30 through the second reversing valve. Alternatively, the cold water valve 34 and the cold water discharge valve can be either on / off valves or solenoid valves, etc.

[0053] As mentioned above, this utility model can control the flow direction of fluid by setting up a cold water discharge path. Using this structure, it is possible to drain stagnant water from the cold water tank of the water dispenser 100. Examples include, but are not limited to, the following.

[0054] In some examples, the water dispenser 100 also includes a third controller that is communicatively connected to the cold water drain valve and the cold water valve 34. The third controller is configured to control the cold water drain valve to open for a second preset time during the water dispensing process before opening the cold water valve 34.

[0055] During a short period after the user begins drawing water, the third controller can be used to open the cold water drain valve and close the cold water valve 34. After a second preset time, the cold water remaining in the refrigeration unit 30 and / or between the refrigeration unit 30 and the water outlet device 40 will be drained. The third controller can then open the cold water valve 34 and close the cold water drain valve, allowing the cooled water in the refrigeration unit 30 to be sent to the water outlet device 40 through the cold water valve 34, thus providing cold water to the user. The second preset time in this invention can be set from 0.1s to 100s, and can be set according to the cooling power of the refrigeration unit 30, the inlet water temperature of the water inlet device 10, etc.

[0056] In other examples, the water dispenser 100 also includes a fourth controller, which is communicatively connected to the cold water discharge valve and the cold water valve 34. The fourth controller is configured to control the cold water discharge valve to open when predetermined conditions are met. These predetermined conditions may include the water dispenser 100 being idle for a third preset duration; or the refrigeration unit 30 being idle for a fourth preset duration, etc. During the use of the water dispenser 100, when cold water is dispensed for each preset duration, the cold water remains in the pipes for a shorter time, thus ensuring that the cold water in the refrigeration unit 30 is relatively fresh and reducing or avoiding bacterial growth. However, when the refrigeration unit or the water dispenser 100 is not used for a long time, the stale water in the refrigeration unit remains for a longer period, which can easily lead to bacterial growth. Therefore, in this invention, after the water dispenser 100 or the refrigeration unit 30 has been idle for a period of time, the stale water in the water dispenser 100 is drained, which can prevent users from drinking stale water that has remained in the refrigeration unit 30 for too long, thus improving water safety.

[0057] In addition, the cold water discharge pipe in this utility model can also be used for self-cleaning of the refrigeration device 30. For example, when self-cleaning the refrigeration device 30, the water after cleaning the refrigeration device 30 can be discharged from the cold water discharge pipe.

[0058] The above description is merely some embodiments of this utility model and is not intended to limit the scope of protection of this utility model. For example, different embodiments described above can be combined to obtain new embodiments, which are also within the scope of protection of this utility model. Furthermore, the water dispenser 100 of this utility model may also have the following other technical features.

[0059] like Figure 1 and Figure 2 In some embodiments, the refrigeration device 30 includes a cold tank 32 and a refrigeration module. The cold tank 32 has a first inlet and a first outlet. The refrigeration module is configured to cool the fluid within the refrigeration device 30 using a refrigerant phase change. Water supplied by the water inlet device 10 can enter the cold tank 32 through the first inlet, exchange heat with the refrigeration module within the cold tank 32, and be cooled by the refrigeration module before being discharged from the first outlet. Through the above configuration, the water flow can be easily cooled, optimizing the cooling effect and efficiency of the water flow.

[0060] Optionally, the refrigeration module includes an evaporator 332, which is arranged circumferentially along the cold tank 32. This can increase the heat exchange area between the evaporator 332 and the internal space of the cold tank 32, thereby improving the refrigeration efficiency and effect of the refrigeration device 30. Alternatively, the evaporator 332 of this invention can also be embedded inside the peripheral wall of the cold tank 32, or it can be located inside the cold tank 32, etc.

[0061] In addition, such as Figure 1 and Figure 2 In some embodiments, the heating device 20 includes a water pump 23 and an instant heater 24, which are connected in series. The instant heater 24 can be used to heat the water, improving heating efficiency and effectiveness. In addition, the tankless design avoids the formation of stagnant water in the heating device 20, thus improving water safety.

[0062] Optionally, the heating device 20 includes an instant heater 24, which includes a heating tube and a flow guide. The heating tube has a second inlet and a second outlet. The flow guide is disposed inside the heating tube and forms a meandering or spiraling flow channel within the heating tube, connecting the second inlet and the second outlet. During the flow of water through the instant heater 24, the water will flow in a meandering or spiral pattern along the flow channel. During this flow, the heating tube heats the water. By extending the length of the flow channel, the heating time and contact area of ​​the heating tube can be increased, effectively improving the heating efficiency and effect, thereby achieving rapid heating of the water flow. This allows for optimized hot water temperature even without a water tank.

[0063] like Figure 1 and Figure 2 In some embodiments, the water dispenser 100 further includes a room temperature water flow path 71, with a third inlet connected to the water inlet device 10 and a third outlet connected to the water outlet device 40. By setting up the room temperature water flow path 71, room temperature water can be output using the water outlet device 40 to meet the user's needs. In addition, the room temperature water can be mixed with cold water treated by a cold water device or hot water treated by a hot water device to adjust the water supplied by the water outlet device 40 to a suitable temperature and reduce energy consumption.

[0064] like Figure 1 and Figure 2 In some embodiments, the water outlet device 40 includes a water outlet 41 and a flow limiting valve 42. The flow limiting valve 42 is connected in series with the water outlet 41. The first water outlet of the heating device 20 and the second water outlet of the cooling device 30 are connected to the flow limiting valve 42. The water outlet 41 can provide the required water, making it convenient for users to collect water. In addition, the flow limiting valve 42 can ensure a certain water pressure in the water system to ensure the stability of the water output. At the same time, it can facilitate the heating device 20 to heat the water to an appropriate temperature and the cooling device 30 to cool the water to an appropriate temperature, thereby improving the stability of the water dispenser 100.

[0065] like Figure 1 and Figure 2In some embodiments, the water inlet device 10 includes a filter. The filter enables the filtration of the incoming water, and tap water, etc., can be sent to the heating device 20, the cooling device 30, or the ambient temperature water flow path 71 after passing through the filter. In particular, the water that passes through the cooling device 30 or the ambient temperature water flow path 71 can be directly drunk, thus facilitating the use of the water dispenser 100. In addition, the filtered water can also prevent water circuit blockage and extend the life of the water dispenser 100.

[0066] In addition, by distributing the filter, heating device 20 and cooling device 30 along the front-to-back direction, the size of the water dispenser 100 in the left-to-right direction can be reduced. The water dispenser 100 can be designed with a flat structure, which improves the space utilization of the water dispenser 100 and makes it easier to place the water dispenser 100 in a small space such as under the sink.

[0067] The water inlet device 10 includes a filter, which is located at the front end of the water dispenser 100. Positioning the filter at the front end of the water dispenser 100 facilitates filter replacement and installation, making the filter easier to use and reducing operating costs.

[0068] In addition, the water dispensing device 40 includes a water spout 41, which is located at the front of the water dispenser 100. This allows users to easily fill their water containers.

[0069] Optionally, such as Figure 1 and Figure 2 A negative pressure valve 21 is provided between the heating device 20 and the water inlet device 10. By setting the negative pressure valve 21, the flow path after the negative pressure valve 21 can be configured to a negative pressure or zero pressure state. Combined with the water pump 23 in the heating device 20, water can be pumped by the water pump 23 when water is needed, and water will not flow out when water is not needed. In this way, the water tank can be eliminated, which not only improves space utilization, reduces the cost of the water dispenser 100, and simplifies the structure of the water dispenser 100, but also avoids water from staying in the water tank for too long and causing deterioration, thus optimizing food safety.

[0070] In addition, a capacitive sensor 22 is provided between the heating device 20 and the water inlet device 10. The capacitive sensor 22 can detect the water flow, so as to control the operation of the water dispenser 100 according to the water flow, thereby simplifying the use of the water dispenser 100 and reducing the learning cost.

[0071] A hot water valve 25 is provided between the heating device 20 and the water outlet device 40. The hot water valve 25 can control the water flow. In conjunction with the aforementioned embodiment, the hot water valve 25 and the hot water discharge unit can control the direction of the water flow to increase the temperature of the first cup of water and optimize the user experience.

[0072] Optionally, a zero-pressure valve 31 is provided between the refrigeration unit 30 and the water inlet device 10. The zero-pressure valve 31 can be used to easily reduce the water inlet pressure of the refrigeration unit 30, making the water dispenser 100 easier to use.

[0073] Optionally, a cold water valve 34 is provided between the refrigeration unit 30 and the water outlet device 40. The cold water valve 34 can control the water flow. In conjunction with the aforementioned embodiment, the cold water valve 34 and the cold water discharge unit can control the direction of water flow to facilitate the discharge of stale water and improve water safety.

[0074] Among them, a sterilization module is provided between the refrigeration device 30 and the water outlet device 40. The sterilization module can be used to sterilize and disinfect cold water, avoid the potential growth of bacteria in cold water, and optimize water safety.

[0075] Optionally, the water inlet device 10 includes a pressure reducing valve 11, a leak protector 12, a filter, an inlet valve 14, and / or a flow meter 15. The pressure reducing valve 11 eliminates the influence of tap water pressure on the water dispenser 100, eliminating the need for a water tank and optimizing water safety. The leak protector 12 can effectively control the water dispenser 100 in case of leaks, preventing water waste and ensuring safe operation. The filter filters the water flow. The inlet valve 14 controls the water flow, allowing for timely disconnection of the water supply in case of maintenance or leaks, maintaining the stability and safety of the water dispenser 100 and facilitating its use. The flow meter 15 detects the water flow rate, improving the stability of the water dispenser 100 and enabling quantitative water supply.

[0076] like Figure 1 and Figure 2 In some embodiments, the water inlet device 10 includes a filter comprising a first filter element 131 and a second filter element 132 connected in series, with a faucet interface between them. This allows for the supply of drinking water and water to the faucet 200, making the water dispenser 100 suitable for kitchen use, for example, by placing it on a kitchen countertop. When water is needed for washing vegetables, the flow can be controlled from the faucet for kitchen use. When drinking water is needed, the flow is controlled from the water outlet device 40. Furthermore, the first filter element 131 can be a filter screen, carbon rod, or other filtration structure, and the second filter element 132 can be an RO reverse osmosis filter element to improve the safety and quality of the water supplied from the water outlet device 40 while ensuring the water flow rate of the faucet.

[0077] like Figure 1 and Figure 2In some embodiments of this utility model, the water inlet device 10 may include a pressure reducing valve 11, a leak protector 12, a first filter element 131 (which may include PP cotton and / or activated carbon), a second filter element 132 (which may include a nano air filter element), a water inlet valve 14, and a flow meter 15, etc., connected in series. The heating device 20, the cooling device 30, and the ambient temperature water flow path 71 are connected in parallel to the flow meter 15.

[0078] The heating device 20 includes a water pump 23 and an instant heater 24 connected in series. A negative pressure valve 21 and a capacitive sensor 22 are connected in series between the heating device 20 and the flow meter 15. A hot water valve 25 is connected in series between the heating device 20 and the water outlet device 40.

[0079] A room temperature water flow path 71 is connected in series with a hot water valve 72. One end of the room temperature water flow path 71 is connected to a flow meter 15 and the other end is connected to a sterilization module (e.g., a UV module).

[0080] A zero-pressure valve 31 is connected between the refrigeration unit 30 and the flow meter 15, and a cold water valve 34 is connected in series between the refrigeration unit 30 and the sterilization module. The refrigeration unit 30 may include a cold tank 32 and a refrigeration module. The refrigeration module may include a compressor 331, an evaporator 332, a capillary tube 333, and a condenser 334 connected in sequence in a loop. The evaporator 332 is connected to the cold tank 32 for cooling the fluid inside the cold tank 32. The inlet of the cold tank 32 can be connected to the upper part of the cold tank 32, and the outlet of the cold tank 32 can be connected to the lower part of the cold tank 32. In addition, a drain pipe is provided at the bottom of the cold tank 32, which can be used to drain the cold tank 32.

[0081] The water outlet device 40 may include a flow restrictor valve 42 and a water outlet 41, the water outlet 41 being configured to have a flow rate of 1.2 L / min. The flow restrictor valve 42 is connected to the sterilization module and the hot water valve 25.

[0082] A bypass flow path 81 can be provided between the first water outlet of the heating device 20 and the second water inlet of the cooling device 30. This bypass flow path 81 allows hot water heated by the heating device 20 to be sent to the cooling device 30 for self-cleaning. The bypass flow path 81 can be equipped with a one-way valve 82, a solenoid valve, etc., to control the flow rate of water heated by the heating device 20 to the cooling device 30. One end of the hot water discharge path connects the heating device 20 and the hot water valve 25, and one end of the cold water discharge path connects the cooling device 30 and the cold water valve 34. The cold water discharge path is equipped with a cold water discharge valve, and the hot water discharge path is equipped with a hot water discharge valve. The other end of the cold water discharge path is connected to the other end of the hot water discharge path.

[0083] The water supply paths for ambient temperature water, hot water, cold water, and kitchen water are as follows:

[0084] 1. Normal temperature water: tap water → pressure reducing valve 11 → water leakage protector 12 (e.g., mechanical water leakage protector) → first filter element 131 → second filter element 132 → inlet valve 14 → flow meter 15 → warm water valve 72 → sterilization module → flow limiting valve 42 → water outlet 41;

[0085] 2. Hot water: Tap water → Pressure reducing valve 11 → Leakage protector 12 → First filter element 131 → Second filter element 132 → Inlet valve 14 → Flow meter 15 → Negative pressure valve 21 → Capacitive sensor 22 → Water pump 23 → Instant heater 24 → Hot water valve 25 → Flow limiting valve 42 → Outlet 41;

[0086] 3. Cold Water: Tap water → Pressure reducing valve 11 → Leakage protector 12 → First filter element 131 → Second filter element 132 → Inlet valve 14 → Flow meter 15 → Zero pressure valve 31 → Cold tank 32 → Cold water valve 34 → Sterilization module → Flow restrictor 42 → Outlet 41

[0087] 4. Domestic water supply: tap water → pressure reducing valve 11 → water leakage protector 12 → first filter element 131 → faucet.

[0088] In addition, the water dispenser 100 of this utility model can also perform hot water self-cleaning, with the following self-cleaning flow path:

[0089] 1. Hot water circuit cleaning: Tap water → Pressure reducing valve 11 → Leakage protector 12 → First filter element 131 → Second filter element 132 → Inlet valve 14 → Flow meter 15 → Negative pressure valve 21 → Capacitive sensor 22 → Water pump 23 → Instantaneous heating system → Hot water drain valve (e.g., drain valve) → Drain

[0090] 2. Cold water circuit cleaning: tap water → pressure reducing valve 11 → water leakage protector 12 → first filter element 131 → second filter element 132 → inlet valve 14 → flow meter 15 → negative pressure valve 21 → capacitive sensor 22 → water pump 23 → instant heating system → check valve 82 → cold tank 32 → cold water discharge valve (e.g., drain valve) → drain.

[0091] The instant hot water system of this invention features an instant hot water circuit and a conventional cooling water circuit. It is equipped with a stale water discharge branch to ensure that hot water is heated and consumed immediately. It also has a drainage function, which can be designed to discharge stale water from the pipeline before drinking, reducing water quality and odor, and making drinking water safer.

[0092] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship 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 are not intended to 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.

[0093] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0094] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0095] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A water dispenser (100), characterized in that, include: Water inlet device (10); A heating device (20) is provided, the first water inlet of the heating device (20) is connected to the water inlet device (10), and a negative pressure valve (21) is provided between the heating device (20) and the water inlet device (10); A refrigeration device (30), wherein the second water inlet of the refrigeration device (30) is connected to the water inlet device (10); Water outlet device (40) is connected to the first water outlet end of the heating device (20) and the second water outlet end of the cooling device (30).

2. The water dispenser (100) according to claim 1, characterized in that, The water inlet device (10) includes a filter, and the filter, the heating device (20) and the cooling device (30) are distributed in the front-to-back direction.

3. The water dispenser (100) according to claim 1, characterized in that, The water inlet device (10) includes a filter located at the front end of the water dispenser (100); and / or, the water outlet device (40) includes a water outlet (41) located at the front end of the water dispenser (100).

4. The water dispenser (100) according to claim 1, characterized in that, A zero-pressure valve (31) is provided between the refrigeration device (30) and the water inlet device (10); And / or, a sterilization module is provided between the refrigeration unit (30) and the water outlet unit (40); And / or, the water inlet device (10) includes a pressure reducing valve (11), a leakage protector (12), a filter, a water inlet valve (14), and / or a flow meter (15).

5. The water dispenser (100) according to claim 1, characterized in that, The water inlet device (10) includes a filter, which includes a first filter element (131) and a second filter element (132). The first filter element (131) and the second filter element (132) are connected in series, and a faucet interface is provided between the first filter element (131) and the second filter element (132).

6. The water dispenser (100) according to claim 1, characterized in that, The water dispenser (100) also includes a drainage device connected to the first water outlet of the heating device (20) and / or the second water outlet of the cooling device (30), and the drainage device is selectively connected to drain water.

7. The water dispenser (100) according to claim 6, characterized in that, The drainage device includes a hot water discharge path and a hot water discharge valve. One end of the hot water discharge path is connected between the heating device (20) and the water outlet device (40), and the other end is used for drainage. The hot water discharge valve controls the opening and closing of the hot water discharge path.

8. The water dispenser (100) according to claim 7, characterized in that, The water dispenser (100) also includes a hot water valve (25), which is connected in series between the heating device (20) and the water outlet device (40); The water dispenser (100) also includes a first controller, which is communicatively connected to the hot water discharge valve and the hot water valve (25). The first controller is configured to control the hot water discharge valve to open for a first preset time during the water dispensing process before opening the hot water valve (25). Alternatively, the water dispenser (100) may further include a second controller and a temperature monitoring device. The temperature monitoring device is used to monitor the water outlet temperature of the water outlet device (40). The second controller is communicatively connected to the temperature monitoring device, the hot water drain valve, and the hot water valve (25). The second controller is configured to control the hot water drain valve to open when the water outlet temperature is less than a preset temperature value during water dispensing, and to control the hot water valve (25) to open when the water outlet temperature is greater than or equal to the preset temperature value.

9. The water dispenser (100) according to claim 6, characterized in that, The drainage device includes a cold water discharge path and a cold water discharge valve. One end of the cold water discharge path is connected between the refrigeration device (30) and the water outlet device (40), and the other end is used for drainage. The cold water discharge valve controls the opening and closing of the cold water discharge path.

10. The water dispenser (100) according to claim 9, characterized in that, The water dispenser (100) also includes a cold water valve (34), which is connected in series between the refrigeration device (30) and the water outlet device (40). The water dispenser (100) includes a third controller, which is communicatively connected to the cold water discharge valve and the cold water valve (34). The third controller is configured to control the cold water discharge valve to open for a second preset time during the water dispensing process before opening the cold water valve (34). Alternatively, the water dispenser (100) may include a fourth controller that is communicatively connected to the cold water drain valve and the cold water valve (34). The fourth controller is configured to control the cold water drain valve to open when predetermined conditions are met, the predetermined conditions including the water dispenser (100) being idle for a third preset duration and / or the refrigeration device (30) being idle for a fourth preset duration.

11. The water dispenser (100) according to claim 1, characterized in that, The refrigeration device (30) includes: A cold tank (32) having a first inlet and a first outlet; A refrigeration module configured to refrigerate the fluid in the cold tank (32) by utilizing a refrigerant phase change.

12. The water dispenser (100) according to claim 11, characterized in that, The refrigeration module includes an evaporator (332) arranged circumferentially along the cold tank (32).

13. The water dispenser (100) according to claim 1, characterized in that, The heating device (20) includes a water pump (23) and an instant heater (24), which are connected in series. And / or, the heating device (20) includes an instant heater (24), the instant heater (24) includes a heating tube and a flow guide, the heating tube has a second inlet and a second outlet, the flow guide is disposed inside the heating tube and forms a meandering or spiral flow channel inside the heating tube, the flow channel connecting the second inlet and the second outlet.

14. The water dispenser (100) according to claim 1, characterized in that, The water dispenser (100) also includes a room temperature water flow path (71), the third inlet end of the room temperature water flow path is connected to the water inlet device (10), and the third outlet end of the room temperature water flow path (71) is connected to the water outlet device (40).

15. The water dispenser (100) according to claim 1, characterized in that, The water outlet device (40) includes a water outlet (41) and a flow limiting valve (42). The flow limiting valve (42) is connected in series with the water outlet (41). The first water outlet of the heating device (20) and the second water outlet of the cooling device (30) are connected to the flow limiting valve (42).

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