Waterway system for a water purification device and water purification device

Abstract

The application relates to the water purification technical field, and particularly provides a water route system for a water purification device and the water purification device, aiming to solve the problem that the water experience of a user is poor due to a large difference between the water temperature of the first cup of hot water and the set water temperature of the existing water purification device. The water route system comprises a heating component, a water outlet component, a water outlet pipe, a reflux pipe and a control component. The water inlet end of the heating component is connected to a water source. One end of the water outlet pipe is in communication with the water outlet end of the heating component, and the other end is in communication with the water outlet component. The first end of the reflux pipe is arranged close to the water outlet component. The second end of the reflux pipe is in communication with the upstream end of the heating component. The control component is arranged to selectively make the water in the water outlet pipe flow to the water outlet component or the reflux pipe. The application can transport the normal-temperature water remaining in the water outlet pipe to the upstream end of the heating component through the reflux pipe, avoid the normal-temperature water remaining in the water outlet pipe from flowing to the water outlet component, and avoid the problem that the water temperature of the first cup of hot water is greatly deviated from the preset water temperature.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically providing a water system and a water purification device for drinking water purification equipment. Background Technology

[0002] As people's living standards improve, their demand for drinking water is also increasing. Water dispensers, pipeline water dispensers, and other drinking water purification equipment are gradually becoming essential drinking water facilities in people's daily lives.

[0003] Water purifiers with heating functions are popular because they can provide hot, warm, and room temperature water, offering users a variety of water experiences (such as making milk powder, coffee, and tea).

[0004] Taking a countertop water purifier as an example, existing countertop water purifiers have a distance between the heating element and the water outlet. There is residual room temperature water in the pipe between the heating element and the water outlet. When selecting warm water or boiling water, the first cup of water is often mixed with the residual room temperature water in the pipe, resulting in a large difference between the temperature of the first cup of water and the set water temperature. However, there are suitable recommended brewing temperatures for milk powder and coffee. This leads to poor brewing results for milk powder, coffee, tea, etc., affecting the user's water experience. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems to at least a certain extent, that is, to solve the problem that the user's water experience is poor due to the large difference between the temperature of the first cup of water output by the existing water purifier and the set water temperature.

[0006] In a first aspect, the present invention provides a water circuit system for a water purification device, the water circuit system comprising: a heating component having a heating chamber, the inlet end of the heating component being connected to a water source, the heating component being capable of heating water flowing into the heating chamber; an outlet component for outputting water from the heating chamber; an outlet pipe having one end connected to the outlet end of the heating component and the other end connected to the outlet component; a return pipe having a first end connected to both the heating component and the outlet component, the first end of the return pipe being disposed near the outlet component, and a second end of the return pipe being connected to the upstream end of the heating component; and a control component configured to selectively direct water in the outlet pipe to either the outlet component or the return pipe.

[0007] In the preferred technical solution of the water circuit system for the above-mentioned drinking water purification equipment, the control component includes an outlet valve and a return valve. The first end of the return pipe is connected to the outlet pipe. The outlet valve is disposed on the outlet pipe and located at the downstream end of the return pipe. The return valve is disposed on the return pipe. Alternatively, the control component includes a reversing valve. The first port of the reversing valve is connected to the outlet pipe. The second port of the reversing valve is connected to the outlet component. The third port of the reversing valve is connected to the first end of the return pipe. The first port of the reversing valve can selectively connect to the second port or the third port.

[0008] In the preferred technical solution of the water circuit system for the above-mentioned drinking water purification equipment, the water circuit system further includes a pump body, which is disposed on the outlet pipe and is used to pump water in the heating component to the outlet component or the return pipe, wherein the second end of the return pipe is connected to the inlet end of the pump body; and / or, a one-way valve is provided on the return pipe, which is used to prevent water in the return pipe from flowing back into the outlet component.

[0009] In the preferred embodiment of the water circuit system for the above-mentioned drinking water purification equipment, the water circuit system further includes a temperature detection component, which is disposed on the water outlet pipe and located upstream of the control component. The temperature detection component is used to detect the water temperature in the water outlet pipe and is communicatively connected to the control component. Alternatively, the water circuit system further includes a timer, which is used to detect the running time of the pump body and is communicatively connected to the control component. Alternatively, the pump body is communicatively connected to the control component so as to adjust the flow rate of the pump body according to the working status of the control component.

[0010] In the preferred embodiment of the water system for the above-mentioned drinking water purification equipment, the water system further includes a filtration device, and the inlet end of the heating element is connected to the outlet end of the filtration device.

[0011] In the preferred technical solution of the water circuit system for the above-mentioned drinking water purification equipment, the filtration device has a pre-filtration unit, a reverse osmosis filtration unit and a post-filtration unit connected in sequence, wherein the water outlet of the pre-filtration unit is connected to the water inlet of the reverse osmosis filtration unit, the pure water end of the reverse osmosis filtration unit is connected to the water inlet of the post-filtration unit, and the water inlet of the heating element is connected to the water outlet of the post-filtration unit.

[0012] In the preferred technical solution of the water circuit system for the above-mentioned drinking water equipment, the filtration device includes a first filtration component and a second filtration component connected in sequence, wherein the first filtration component is provided with a pre-filtration unit and a reverse osmosis filtration unit, and the second filtration component is provided with a post-filtration unit.

[0013] In the preferred technical solution of the water circuit system for the above-mentioned drinking water purification equipment, the second end of the return pipe is connected to the upstream end of the reverse osmosis filtration unit; or, the second end of the return pipe can be selectively connected to the upstream end of the reverse osmosis filtration unit or the water inlet end of the heating component.

[0014] In the preferred technical solution of the water circuit system for the above-mentioned drinking water purification equipment, the filtration device further includes a raw water tank, which has a raw water chamber and a wastewater chamber. The raw water chamber is connected to the inlet end of the pre-filter unit through an inlet pipe. A booster pump is installed on the inlet pipe. The wastewater end of the reverse osmosis filtration unit is connected to the wastewater chamber through a wastewater pipe. A wastewater valve is installed on the wastewater pipe.

[0015] In a second aspect, the present invention also provides a water purification device, the water purification device including the water circuit system for a water purification device described in any of the first aspects.

[0016] By adopting the above technical solution, and by setting a return pipe with its first end close to the water outlet component, the residual room temperature water in the water outlet pipe can be transported to the upstream end of the heating component through the return pipe. This prevents the residual room temperature water in the water outlet pipe from flowing to the water outlet component. After all the residual room temperature water in the water outlet pipe has returned to the upstream end of the heating component, the hot water in the water outlet pipe flows to the water outlet component. This ensures that the hot water output by the water purifier is close to the user's desired hot water temperature, avoiding the problem of a large deviation between the temperature of the first cup of hot water and the preset temperature. This improves the brewing effect of beverages and enhances the user experience.

[0017] Furthermore, by incorporating a temperature detection component, the water temperature within the outlet pipe can be detected. This allows for accurate determination of whether all residual room-temperature water in the outlet pipe has been returned to the upstream end of the heating element. On one hand, this avoids premature termination of the return flow, preventing the temperature of the first cup of hot water from deviating from the preset temperature. On the other hand, it also avoids delayed termination of the loop, preventing energy waste and long waiting times for users to obtain water, thus further improving the user experience. Alternatively, by setting a timer, the pump's operating time can be monitored. When the pump's operating time reaches the preset duration, a signal is transmitted to the control component. The control component then directs the water in the outlet pipe towards the outlet element, stopping the return flow. This avoids insufficient return flow time, preventing the inability to completely drain residual room-temperature water from the outlet pipe, and also avoids excessive return flow time, preventing energy waste and long waiting times for users to obtain water.

[0018] Furthermore, by connecting the second end of the return pipe to the inlet of the pump body, the residual room temperature water in the outlet pipe can be returned to the inlet of the pump body via the return pipe. Then, under the action of the pump body, it is transported to the heating element for reheating. Since the residual room temperature water in the outlet pipe is pure water after filtration, returning it to the inlet of the pump body can avoid returning it to the upstream end of the reverse osmosis filter unit for re-filtration, thus extending the service life of the reverse osmosis filter unit.

[0019] Furthermore, by connecting the second end of the return pipe to the upstream end of the reverse osmosis filter unit, the residual room temperature water in the outlet pipe can be returned to the upstream end of the reverse osmosis filter unit via the return pipe. After being filtered again by the reverse osmosis filter unit, it is then transported to the heating element by the pump for reheating. In this way, not only can the problem of the large deviation between the outlet temperature of the first cup of hot water and the preset temperature be solved, but also the problem of the high TDS value of the pure water end when the reverse osmosis filter unit is not used for a long time can be solved.

[0020] Furthermore, by setting the second end of the return pipe to be selectively connected to the upstream end of the reverse osmosis filter unit or the inlet end of the heating element, the second end of the return pipe can be selectively connected to the upstream end of the reverse osmosis filter unit or the inlet end of the heating element according to actual needs. This allows the problem of large temperature deviation of the "first cup of hot water" and high TDS value of the "first cup of pure water" to be solved by setting only one return pipe.

[0021] Furthermore, the present invention provides a further water purification device based on the aforementioned water system for water purification equipment. Since it can execute the aforementioned water system for water purification equipment, it possesses the beneficial effects of the aforementioned water system for water purification equipment. Compared with the previous water purification device, the water purification device of the present invention can reduce the deviation between the temperature of the first cup of water output and the water temperature set by the user, resulting in better beverage brewing effect and a better user water experience. Attached Figure Description

[0022] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the water circuit connection of one embodiment of the water circuit system for a water purification device of this utility model; Figure 2 This is a schematic diagram of the water circuit connection of another embodiment of the water circuit system for a water purification device of this utility model; Figure 3 This is a schematic diagram of the water circuit connection of another embodiment of the water circuit system for a water purification device of this utility model; Figure 4This is a schematic diagram of the water circuit connection of another embodiment of the water circuit system for a water purification device according to this utility model.

[0023] List of reference numerals in the attached diagram: 1. Heating component; 2. Water outlet component; 3. Water outlet pipe; 31. Temperature detection component; 4. Return pipe; 41. Check valve; 51. Water outlet valve; 52. Return valve; 53. Reversing valve; 6. Pump body; 71. First filter component; 72. Second filter component; 73. Water inlet pipe; 731. Booster pump; 74. Wastewater pipe; 741. Wastewater valve; 75. Raw water tank; 751. Raw water chamber; 752. Wastewater chamber. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] It should be noted that in the description of this utility model, terms such as "upper" and "lower," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In view of the problem mentioned in the background art that the water temperature of the first cup of water output by existing water purifiers is largely different from the set water temperature, resulting in a poor water experience for users, this utility model provides a water circuit system for water purifiers in the first aspect.

[0028] Specifically, such as Figures 1 to 4 As shown, the water system of the present invention for a drinking water purification device includes a heating component 1, a water outlet component 2, a water outlet pipe 3, a return pipe 4, and a control component. The heating component 1 has a heating chamber, and the water inlet end of the heating component 1 is connected to a water source. The heating component 1 can heat the water flowing into the heating chamber. The water outlet component 2 is used to output the water in the heating chamber.

[0029] One end of the water outlet pipe 3 is connected to the water outlet end of the heating component 1, and the other end of the water outlet pipe 3 can be connected to the water outlet component 2. The first end of the return pipe 4 is connected between the heating component 1 and the water outlet component 2, and the second end of the return pipe 4 is connected to the upstream end of the heating component 1. The control component is configured to allow the water in the water outlet pipe 3 to selectively flow to the water outlet component 2 or the return pipe 4.

[0030] By setting up a return pipe 4 with its first end close to the water outlet component 2, residual room temperature water in the water outlet pipe 3 can be transported to the upstream end of the heating component 1 through the return pipe 4. This prevents residual room temperature water in the water outlet pipe 3 from flowing to the water outlet component 2. Once all the residual room temperature water in the water outlet pipe 3 has returned to the upstream end of the heating component 1, the hot water in the water outlet pipe 3 flows to the water outlet component 2. This ensures that the hot water output by the water purifier is close to the user's desired temperature, avoiding a large deviation between the temperature of the first cup of hot water and the preset temperature. This improves the brewing effect of beverages and enhances the user experience.

[0031] It should be noted that the first end of the return pipe 4 is positioned close to the water outlet component 2. This can be because the first end of the return pipe 4 is connected to the end of the water outlet pipe 3 that is close to the water outlet component 2, or the length of the pipe between the first end of the return pipe 4 and the water outlet component 2 is less than a set value, or the length of the pipe between the first end of the return pipe 4 and the water outlet component 2 is less than the length of the pipe between the first end of the return pipe 4 and the water outlet end of the heating component 1, etc. Such adjustments and changes to the specific configuration of the first end of the return pipe 4 being close to the water outlet component 2 do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0032] For example, the length of the pipe between the first end of the return pipe 4 and the outlet component 2 is less than a set value.

[0033] It should be noted that in practical applications, those skilled in the art can determine the specific value of the setpoint based on experience or experimentation. For example, the setpoint can be 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, or a range of any two of these values.

[0034] For example, the value is set to 10 centimeters.

[0035] It should be noted that in practical applications, this utility model does not limit the specific type of the heating component 1. For example, the heating component 1 can be set as an instant heating component 1, or as an electromagnetic heating component 1, or as a resistance heating component 1, etc. Such adjustments and changes to the specific type of the heating component 1 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0036] Preferably, the heating element 1 is an instant heating element 1.

[0037] It should be noted that, in practical applications, those skilled in the art can set the water outlet component 2 as a water spout, or as a faucet, etc. Such adjustments and changes to the specific setting type of the water outlet component 2 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0038] Preferably, the water outlet component 2 is a faucet.

[0039] It should be noted that, in practical applications, those skilled in the art do not impose any restrictions on the specific type of control components, as long as the water in the outlet pipe 3 can selectively flow to the outlet component 2 or the return pipe 4.

[0040] In one specific embodiment, such as Figure 1 and Figure 3 As shown, the control components include an outlet valve 51 and a return valve 52. The first end of the return pipe 4 is connected to the outlet pipe 3. The outlet valve 51 is installed on the outlet pipe 3 and located at the downstream end of the return pipe 4. The return valve 52 is installed on the return pipe 4.

[0041] When the water purifier dispenses the first cup of hot water, the outlet valve 51 is closed and the return valve 52 is opened. The hot water in the heating element 1 flows into the outlet pipe 3. The room temperature water remaining in the outlet pipe 3 is transported to the upstream end of the heating element 1 through the return pipe 4 to prevent water with a lower temperature from flowing out of the outlet element 2.

[0042] When all the room temperature water in the outlet pipe 3 flows back to the upstream end of the heating element 1, the return valve 52 is closed and the outlet valve 51 is opened. The hot water in the heating element 1 flows into the outlet pipe 3 and then flows out from the outlet element 2 for the user to use. At this time, the temperature of the hot water output is close to the set temperature, which meets the user's water needs.

[0043] In another specific embodiment, such as Figure 2 and Figure 4As shown, the control component includes a reversing valve 53. The first port of the reversing valve 53 is connected to the water outlet pipe 3, the second port of the reversing valve 53 is connected to the water outlet component 2, and the third port of the reversing valve 53 is connected to the first end of the return pipe 4. The first port of the reversing valve 53 can selectively connect to the second port or the third port.

[0044] When the water purifier dispenses the first cup of hot water, the first port of the reversing valve 53 is connected to the third port, and the hot water in the heating element 1 flows into the outlet pipe 3. The room temperature water remaining in the outlet pipe 3 is transported to the upstream end of the heating element 1 through the return pipe 4, so as to prevent the water with a lower temperature from flowing out of the outlet element 2.

[0045] When all the room temperature water in the outlet pipe 3 flows back to the upstream end of the heating element 1, the first port of the reversing valve 53 is connected to the second port, and the hot water in the heating element 1 flows into the outlet pipe 3 and then flows out from the outlet element 2 for the user to use hot water. At this time, the temperature of the hot water output is close to the set temperature, which meets the user's water needs.

[0046] It should be noted that although the present invention describes the control component using the above two embodiments, this is not restrictive. Any other form that enables water in the outlet pipe 3 to selectively flow into the outlet component 2 or the return pipe 4 does not deviate from the principle and scope of the present invention and should be included within the protection scope of the present invention.

[0047] Preferably, such as Figures 1 to 4 As shown, the water system also includes a pump body 6, which is installed on the outlet pipe 3 and is used to pump water from the heating component 1 to the outlet component 2 or the return pipe 4. The second end of the return pipe 4 is connected to the inlet end of the pump body 6.

[0048] With this configuration, when water is discharged, it is convenient to pump the hot water in the heating component 1 to the water outlet component 2 or the return pipe 4 through the pump body 6, thereby improving the water discharge efficiency.

[0049] It should be noted that the method is not limited to pumping hot water from the heating element 1 to the outlet element 2 or the return pipe 4 using a pump body 6. For example, the heating element 1 can be positioned higher than the outlet element 2 and the return pipe 4, allowing gravity to transport the hot water from the heating element 1 to the outlet element 2 or the return pipe 4, etc. Such flexible adjustments and modifications do not deviate from the principles and scope of this utility model and should be included within the protection scope of this utility model. Of course, preferably, the hot water from the heating element 1 is pumped to the outlet element 2 or the return pipe 4 using a pump body 6.

[0050] Preferably, such as Figures 1 to 4 As shown, a one-way valve 41 is also provided on the return pipe 4. The one-way valve 41 is used to prevent the water in the return pipe 4 from flowing back into the water outlet component 2.

[0051] It should be noted that, in practical applications, those skilled in the art can use their experience to determine whether all the residual room temperature water in the outlet pipe 3 has been returned to the upstream end of the heating element 1. Alternatively, a temperature detection element 31 can be installed on the outlet pipe 3, and the detection result of the temperature detection element 31 can be used to determine whether all the residual room temperature water in the outlet pipe 3 has been returned to the upstream end of the heating element 1. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0052] The following two embodiments will be described in detail.

[0053] Example 1: like Figures 1 to 4 As shown, the water system also includes a temperature detection component 31, which is installed on the outlet pipe 3 and located upstream of the control component. The temperature detection component 31 is used to detect the water temperature in the outlet pipe 3 and is communicatively connected to the control component.

[0054] With this setup, the temperature detection component 31 can detect the water temperature in the outlet pipe 3, thus accurately determining whether all the residual room temperature water in the outlet pipe 3 has been returned to the upstream end of the heating component 1. On the one hand, this avoids premature termination of the return flow, which would cause the water temperature of the first cup of hot water to deviate from the preset water temperature. On the other hand, it also avoids premature termination of the circuit, which would result in energy waste and long waiting times for users to collect water, further improving the user experience.

[0055] It should be noted that, in practical applications, those skilled in the art can configure the temperature detection component 31 as a thermometer, or as a temperature detection sensor, etc. Such adjustments and changes to the specific configuration of the temperature detection component 31 do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0056] Preferably, the temperature detection component 31 is a temperature detection sensor.

[0057] Example 2: The water system also includes a timer (not shown in the figure) for detecting the running time of the pump body 6, and the timer is communicatively connected to the control component.

[0058] By setting a timer, the running time of the pump body 6 can be detected. When the running time of the pump body 6 reaches the preset time, a signal is transmitted to the control component. The control component causes the water in the outlet pipe 3 to flow to the outlet component 2, so that the system stops the backflow. This avoids the problem that the residual room temperature water in the outlet pipe 3 cannot be completely discharged due to the backflow time being too short. It also avoids the problem of energy waste and long waiting time for users to get water due to the backflow time being too long.

[0059] It should be noted that, in practical applications, those skilled in the art can determine the specific duration of the preset duration based on experience or experimentation.

[0060] For example, the preset duration is 30 seconds.

[0061] It should be noted that although the present invention uses the above two embodiments to determine whether all the residual room temperature water in the outlet pipe 3 has been returned to the upstream end of the heating component 1, this is not restrictive. Any other possible determination method does not deviate from the principle and scope of the present invention and should be included within the protection scope of the present invention.

[0062] It should also be noted that, in practical applications, those skilled in the art can set the flow rate of water in the outlet pipe 3 when flowing to the return pipe 4 to be equal to the flow rate of water in the outlet pipe 3 when flowing to the outlet component 2, or the flow rate of water in the outlet pipe 3 when flowing to the return pipe 4 to be greater than the flow rate of water in the outlet pipe 3 when flowing to the outlet component 2, or the flow rate of water in the outlet pipe 3 when flowing to the return pipe 4 to be less than the flow rate of water in the outlet pipe 3 when flowing to the outlet component 2, and so on. Such adjustments and changes to the specific flow rate of the pump body 6 in the return mode and the hot water mode do not deviate from the principle and scope of this utility model and should all be included within the protection scope of this utility model.

[0063] Preferably, the pump body is communicatively connected to the control component so as to adjust the flow rate of the pump body according to the working status of the control component.

[0064] By configuring the pump body to communicate with the control component, the pump flow rate can be adjusted according to the working status of the control component. This ensures that the flow rate of water in the outlet pipe 3 flowing towards the return pipe 4 is greater than the flow rate of water in the outlet pipe 3 flowing towards the outlet component 2. In this way, when the room temperature water in the outlet pipe 3 flows back to the upstream end of the heating component 1, the pump body 6 can return at a relatively large flow rate, thereby shortening the user's waiting time. When the hot water in the outlet pipe 3 flows towards the outlet component 2, the pump body 6 can dispense water at a relatively small flow rate, preventing excessive flow from causing hot water to splash and scald the user, thus improving the user's safety.

[0065] It should be noted that this utility model does not limit the specific connection method of the communication connection between the pump body 6 and the control component. For example, both the pump body 6 and the control component can be configured to communicate with the controller of the water purifier, or both the pump body 6 and the control component can be configured to communicate with the user's mobile device, etc. Such adjustments and changes to the specific connection method of the communication connection between the pump body 6 and the control component do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0066] Preferably, the water purification device includes a controller, and the pump body 6 and control components are all communicatively connected to the controller.

[0067] It should be noted that this utility model does not impose any limitations on the flow rate of the pump body 6 during recirculation or the flow rate of the pump body 6 when hot water is dispensed. Those skilled in the art can determine the flow rate of the pump body 6 during recirculation and the flow rate of the pump body 6 when hot water is dispensed based on experience or experiments.

[0068] It should also be noted that, in practical applications, this utility model does not impose any limitations on the specific form of connection between the water inlet end of the heating component 1 and the water source, as long as a water source can be provided for the heating component 1. For example, the water inlet end of the heating component 1 can be directly connected to the water tank, or a filter device can be set up to connect the water inlet end of the heating component 1 to the water outlet end of the filter device, etc. Such adjustments and changes to the connection method between the water inlet end of the heating component 1 and the water source do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model.

[0069] Preferably, such as Figures 1 to 4 As shown, the water system also includes a filtration device, and the inlet end of the heating component 1 is connected to the outlet end of the filtration device.

[0070] It should be noted that, in practical applications, those skilled in the art can configure the filtration device to have only a pre-filtration unit, or the filtration device can be configured to have a pre-filtration unit and a reverse osmosis filtration unit connected in sequence, or the filtration device can be configured to have a pre-filtration unit, a reverse osmosis filtration unit and a post-filtration unit connected in sequence, etc. Such adjustments and changes to the specific configuration type of the filtration device do not deviate from the principle and scope of this utility model, and should all be included within the protection scope of this utility model.

[0071] Preferably, the filtration device has a pre-filtration unit, a reverse osmosis filtration unit, and a post-filtration unit connected in sequence, wherein the outlet of the pre-filtration unit is connected to the inlet of the reverse osmosis filtration unit, the pure water end of the reverse osmosis filtration unit is connected to the inlet of the post-filtration unit, and the inlet of the heating element 1 is connected to the outlet of the post-filtration unit.

[0072] With this setup, the water can be filtered once through the pre-filter unit to remove impurities and sediment. The filtered water then undergoes a second filtration through the reverse osmosis unit to remove bacteria, viruses, heavy metals, and other harmful substances, producing pure water. Finally, the post-filter unit improves the taste of the pure water, removes residual chlorine, and enhances water quality, further improving the user's water experience.

[0073] It should be noted that, in practical applications, those skilled in the art can configure the filtration device as three independent filter elements, each including a pre-filtration unit, a reverse osmosis filtration unit, and a post-filtration unit. Alternatively, the filtration device can be configured to include a first filter element 71 and a second filter element 72, wherein the first filter element 71 has a pre-filtration unit and a reverse osmosis filtration unit, and the second filter element 72 has a post-filtration unit. Furthermore, the filtration device can be configured to include a first filter element 71 and a second filter element 72, wherein the first filter element 71 has a pre-filtration unit and a post-filtration unit, and the second filter element 72 has a reverse osmosis filtration unit, and so on. Such adjustments and changes to the specific configuration of the filtration device do not deviate from the principles and scope of this utility model and should all be included within the protection scope of this utility model.

[0074] Preferably, such as Figures 1 to 4 As shown, the filtration device includes a first filter component 71 and a second filter component 72 connected in sequence. The first filter component 71 is provided with a pre-filtration unit and a reverse osmosis filter unit, and the second filter component 72 is provided with a post-filtration unit.

[0075] This design saves installation space for the filtration system, resulting in a smaller water purifier and a better user experience.

[0076] Specifically, the pre-filter unit is a PPC filter element, and the post-filter unit is a T33 filter element.

[0077] It should be noted that, in practical applications, those skilled in the art do not impose any restrictions on the specific connection position of the second end of the return pipe 4, as long as the second end of the return pipe 4 can be connected to the upstream end of the heating component 1.

[0078] In one specific embodiment, such as Figure 1 and Figure 2 As shown, the second end of the return pipe 4 is connected to the water inlet end of the pump body 6.

[0079] With this setup, the residual room temperature water in the outlet pipe 3 can be returned to the inlet end of the pump body 6 via the return pipe 4, and then transported to the heating element 1 for reheating under the action of the pump body 6. Since the residual room temperature water in the outlet pipe 3 is pure water after filtration, returning it to the inlet end of the pump body 6 can avoid returning it to the upstream end of the reverse osmosis filter unit for re-filtration, thus extending the service life of the reverse osmosis filter unit.

[0080] In another specific embodiment, such as Figure 3 and Figure 4 As shown, the second end of the return pipe 4 is connected to the upstream end of the reverse osmosis filter unit.

[0081] With this setup, the residual room temperature water in the outlet pipe 3 can be returned to the upstream end of the reverse osmosis filter unit via the return pipe 4. After being filtered again by the reverse osmosis filter unit, it is then transported to the heating element 1 by the pump body 6 for reheating. In this way, not only can the problem of the large deviation between the outlet temperature of the first cup of hot water and the preset temperature be solved, but also the problem of the high TDS value of the pure water end when the reverse osmosis filter unit is not used for a long time can be solved.

[0082] In another possible embodiment, the second end of the return pipe 4 may also be selectively connected to the upstream end of the reverse osmosis filter unit or the inlet end of the heating element 1 (not shown in the figure).

[0083] Specifically, since the room temperature water remaining in the outlet pipe 3 is filtered pure water, this part of pure water does not need to be filtered again by the reverse osmosis filter unit, thus extending the service life of the reverse osmosis filter unit. At this time, this part of room temperature water needs to be returned to the inlet end of the pump body 6, which solves the problem of large temperature deviation of the "first cup of hot water". However, when the reverse osmosis filter unit is not used for a long time, the TDS value of the pure water end of the reverse osmosis filter unit increases, resulting in a high TDS value of the "first cup of pure water". At this time, this part of pure water needs to be returned to the inlet end of the reverse osmosis filter unit to solve the problem of high TDS value of the "first cup of pure water".

[0084] Therefore, the second end of the return pipe 4 can be selectively connected to the upstream end of the reverse osmosis filter unit or the inlet end of the heating component 1 according to actual needs, so that the problem of large temperature deviation of the "first cup of hot water" and high TDS value of the "first cup of pure water" can be solved by setting only one return pipe 4.

[0085] Preferably, such as Figures 1 to 4As shown, the filtration device also includes a raw water tank 75, which has a raw water chamber 751 and a wastewater chamber 752. The raw water chamber 751 is connected to the inlet end of the pre-filter unit through an inlet pipe 73. A booster pump 731 is installed on the inlet pipe 73. The wastewater end of the reverse osmosis filtration unit is connected to the wastewater chamber 752 through a wastewater pipe 74. A wastewater valve 741 is installed on the wastewater pipe 74.

[0086] With this setup, the raw water in the raw water chamber 751 enters the pre-filter unit, and after being filtered by the pre-filter unit, it is then transported to the reverse osmosis filter unit by the booster pump 731. The pure water after being filtered by the reverse osmosis filter unit is transported to the heating component 1, and the pure water produced by filtration flows into the wastewater chamber 752 in the raw water tank 75 through the wastewater pipe 74.

[0087] It should be noted that the method is not limited to setting up a raw water tank 75 and connecting the raw water chamber 751 within the raw water tank 75 to the pre-filter unit via an inlet pipe 73. For example, the inlet of the pre-filter unit can also be directly connected to a tap water pipe, etc. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, preferably, the method involves setting up a raw water tank 75 and connecting the raw water chamber 751 within the raw water tank 75 to the pre-filter unit via an inlet pipe 73.

[0088] It should also be noted that the connection method is not limited to connecting the wastewater end of the reverse osmosis filter unit to the wastewater chamber 752 of the raw water tank 75 via the wastewater pipe 74. For example, the wastewater end of the reverse osmosis filter unit can also be connected to the wastewater drain outlet of a drinking water purification device, or it can be connected to the sewer pipe in the user's usage scenario, etc. Such adjustments and changes to the specific connection method of the wastewater end of the reverse osmosis filter unit do not deviate from the principle and scope of this utility model and should be included within the protection scope of this utility model. Of course, preferably, the wastewater end of the reverse osmosis filter unit is connected to the wastewater chamber 752 of the raw water tank 75 via the wastewater pipe 74.

[0089] It should also be noted that when the water purifier needs to be sterilized, the heating element 1, the water outlet pipe 3, and the return pipe 4 can be made into a circulating sterilization loop by the control component. The water in the circulating sterilization loop is heated by the heating element 1, and the hot water is circulated in the circulating sterilization loop by the pump body 6 to sterilize the water outlet pipe 3, the return pipe 4, and the heating element 1, thereby further improving the user experience.

[0090] Preferably, the water system of this utility model further includes a drain pipe and a drain valve (not shown in the figure) installed on the drain pipe. One end of the drain pipe is connected to the return pipe 4 or the outlet pipe 3, and the other end of the drain pipe is connected to the wastewater chamber 752.

[0091] In this way, after sterilization is completed, the drain pipe can be opened to allow the sterilized water in the circulating sterilization loop to be discharged into the wastewater chamber 752, thereby emptying the drinking water purification equipment and further improving the user experience.

[0092] In a second aspect, the present invention also provides a water purification device, which includes the water system for a water purification device described in any of the first aspects.

[0093] It should be noted that, in practical applications, those skilled in the art can configure the water purification device as a countertop water purifier, or as an under-sink water purifier, or as a beverage machine such as a coffee machine, milk maker, or tea maker, etc. Such adjustments and changes to the specific configuration of the water purification device do not deviate from the principles and scope of this utility model and should all be included within the protection scope of this utility model.

[0094] Preferably, the water purifier is a countertop water purifier.

[0095] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water system for a drinking water purification device, characterized in that, The waterway system includes: Heating component (1) has a heating chamber, the water inlet of the heating component (1) is connected to a water source, and the heating component (1) is capable of heating the water flowing into the heating chamber; Water outlet component (2) is used to output water from the heating chamber; The water outlet pipe (3) has one end connected to the water outlet of the heating component (1) and the other end connected to the water outlet component (2). A return pipe (4), the first end of which is connected to the heating component (1) and the water outlet component (2), the first end of which is located close to the water outlet component (2), and the second end of which is connected to the upstream end of the heating component (1); and A control component is configured to allow water in the outlet pipe (3) to selectively flow to the outlet component (2) or the return pipe (4).

2. The water system for a drinking water purification device according to claim 1, characterized in that, The control components include an outlet valve (51) and a return valve (52). The first end of the return pipe (4) is connected to the outlet pipe (3). The outlet valve (51) is located on the outlet pipe (3) and at the downstream end of the return pipe (4). The return valve (52) is located on the return pipe (4). Alternatively, the control component includes a reversing valve (53), the first port of which is connected to the outlet pipe (3), the second port of which is connected to the outlet component (2), and the third port of which is connected to the first end of the return pipe (4), wherein the first port of the reversing valve (53) can selectively connect to the second port or the third port.

3. The water system for a drinking water purification device according to claim 1, characterized in that, The water system also includes a pump body (6), which is installed on the outlet pipe (3) and is used to pump the water in the heating component (1) to the outlet component (2) or the return pipe (4). The second end of the return pipe (4) is connected to the inlet end of the pump body (6). And / or, a one-way valve (41) is provided on the return pipe (4), the one-way valve (41) is used to prevent water in the return pipe (4) from flowing back into the water outlet component (2).

4. The water system for a drinking water purification device according to claim 3, characterized in that, The water system also includes a temperature detection component (31), which is installed on the outlet pipe (3) and located upstream of the control component. The temperature detection component (31) is used to detect the water temperature in the outlet pipe (3) and is communicatively connected to the control component. Alternatively, the water system may further include a timer for detecting the running time of the pump body (6), the timer being communicatively connected to the control component; Alternatively, the pump body (6) is communicatively connected to the control component so as to adjust the flow rate of the pump body (6) according to the working state of the control component.

5. The water system for a drinking water purification device according to claim 1, characterized in that, The water system also includes a filtration device, and the inlet end of the heating component (1) is connected to the outlet end of the filtration device.

6. The water system for a drinking water purification device according to claim 5, characterized in that, The filtration device has a pre-filtration unit, a reverse osmosis filtration unit and a post-filtration unit connected in sequence. The outlet of the pre-filtration unit is connected to the inlet of the reverse osmosis filtration unit, the pure water end of the reverse osmosis filtration unit is connected to the inlet of the post-filtration unit, and the inlet of the heating component (1) is connected to the outlet of the post-filtration unit.

7. The water system for a drinking water purification device according to claim 6, characterized in that, The filtration device includes a first filter component (71) and a second filter component (72) connected in sequence. The first filter component (71) is provided with a pre-filtration unit and a reverse osmosis filter unit, and the second filter component (72) is provided with a post-filtration unit.

8. The water system for a drinking water purification device according to claim 6, characterized in that, The second end of the return pipe (4) is connected to the upstream end of the reverse osmosis filtration unit; Alternatively, the second end of the return pipe (4) can be selectively connected to the upstream end of the reverse osmosis filter unit or the inlet end of the heating component (1).

9. The water system for a drinking water purification device according to claim 6, characterized in that, The filtration device also includes a raw water tank (75), which has a raw water chamber (751) and a wastewater chamber (752). The raw water chamber (751) is connected to the inlet end of the pre-filter unit through an inlet pipe (73). A booster pump (731) is installed on the inlet pipe (73). The wastewater end of the reverse osmosis filtration unit is connected to the wastewater chamber (752) through a wastewater pipe (74). A wastewater valve (741) is installed on the wastewater pipe (74).

10. A water purification device, characterized in that, The water purification device includes the water circuit system for the water purification device as described in any one of claims 1 to 9.

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