Hot water system and circulating filtering mechanism

Abstract

The invention relates to the technical field of hot water systems, and provides a hot water system and a circulating filtering mechanism, the hot water system comprises a water heater body and the circulating filtering mechanism, the water heater body is provided with a liquid storage cavity, a first water inlet, a first water outlet and a sewage draining exit, the first water inlet, the first water outlet and the sewage draining exit are communicated with the liquid storage cavity, and a heating assembly is further arranged in the liquid storage cavity; the circulating filtering mechanism comprises a circulating pipe group, and a pressurizing piece and a filtering sub-mechanism which are arranged on the circulating pipe group; the circulating pipe group is communicated with the drain outlet and the first water inlet; wherein the pressurizing part is configured to pressurize fluid in the circulating pipe set, and the filtering sub-mechanism is configured to filter the fluid in the circulating pipe set so as to circularly filter the fluid discharged from the drain outlet to the first water inlet. Water resources can be saved, and the cleaning and maintenance difficulty and cost of the liquid storage cavity are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hot water systems, and in particular to a hot water system and a circulation filtering mechanism. Background Art

[0002] Hot water systems are a common electrical appliance in our daily lives. Due to long-term use, impurities such as scale and magnesium slag often accumulate in the liquid storage chamber of hot water systems. To remove these impurities, the entire liquid must be drained, resulting in significant water waste and high cleaning and maintenance costs. Summary of the Invention

[0003] The present application provides a hot water system and a circulating filtration mechanism, which can save water resources and reduce the difficulty and cost of cleaning and maintaining a liquid storage chamber.

[0004] In order to solve the above technical problems, the present application provides a hot water system, which includes a water heater body and a circulation filtering mechanism. The water heater body is provided with a liquid storage chamber and a first water inlet, a first water outlet and a sewage outlet connected to the liquid storage chamber. A heating component is also provided in the liquid storage chamber; the circulation filtering mechanism includes a circulation pipe group and a pressurizing member and a filtering sub-mechanism provided in the circulation pipe group, and the circulation pipe group is connected to the sewage outlet and the first water inlet; wherein the pressurizing member is configured to pressurize the fluid in the circulation pipe group, and the filtering sub-mechanism is configured to filter the fluid in the circulation pipe group, so as to circulate and filter the fluid discharged from the sewage outlet to the first water inlet.

[0005] To address the aforementioned technical issues, the present application further provides a circulation and filtration mechanism. The circulation and filtration mechanism is used in a hot water system, which includes a water heater body and a circulation and filtration mechanism. The circulation and filtration mechanism comprises a circulation pipe assembly, a pressurizing element disposed within the circulation pipe assembly, and a filtering sub-mechanism. The circulation pipe assembly connects the sewage outlet of the water heater body and the first water inlet of the water heater body. The pressurizing element is configured to pressurize the fluid within the circulation pipe assembly, and the filtering sub-mechanism is configured to filter the fluid within the circulation pipe assembly, thereby circulating and filtering the fluid discharged from the sewage outlet back to the first water inlet.

[0006] The beneficial effects of the present application are as follows: the hot water system of the present application includes a water heater body and a circulation and filtering mechanism, the water heater body is provided with a liquid storage chamber and a first water inlet, a first water outlet, and a sewage outlet connected to the liquid storage chamber, and a heating component is also provided in the liquid storage chamber; the circulation and filtering mechanism includes a circulation pipe group and a pressurizing member and a filtering sub-mechanism provided in the circulation pipe group, and the circulation pipe group is connected to the sewage outlet and the first water inlet; wherein the pressurizing member is configured to pressurize the fluid in the circulation pipe group, and the filtering sub-mechanism is configured to filter the fluid in the circulation pipe group, so as to circulate and filter the fluid discharged from the sewage outlet to the first water inlet. In the present application, the pressurizing member pressurizing the fluid in the circulation pipe group will cause the liquid in the liquid storage chamber to flow into the circulation pipe group from the sewage outlet of the liquid storage chamber, and after flowing through the pressurizing member and the filtering sub-mechanism, it will flow to the first water inlet, and then flow back to the liquid storage chamber, forming a circulation loop. When the liquid in the liquid storage chamber flows into the drain outlet under the action of the pressure member, impurities such as scale and magnesium slag in the liquid storage chamber will enter the circulation pipe group along with the flowing liquid. When the fluid in the circulation pipe group flows through the filter sub-mechanism, the filter sub-mechanism can filter the flowing fluid, so that impurities such as scale and magnesium slag are retained in the filter sub-mechanism; under the action of the pressure member, the filtered fluid flows to the first water inlet and flows back into the liquid storage chamber. Therefore, the circulation filtration mechanism of this embodiment can realize the circulation filtration of the liquid in the liquid storage chamber, so that the liquid in the liquid storage chamber can be cleaned and maintained without draining all the liquid in the liquid storage chamber, which can save water resources and reduce the difficulty and cost of cleaning and maintaining the liquid storage chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them: Figure 1 This is a structural diagram of an embodiment of the hot water system of the present application; Figure 2 This is a schematic diagram of the water flow direction of the hot water system of the present application in the circulating filtration state; Figure 3 This is a schematic diagram of the water flow direction of the hot water system of the present application when the user is using water; Figure 4 This is a schematic diagram of the water flow direction of the hot water system of this application when the user uses water and the water is circulated and filtered. DETAILED DESCRIPTION

[0008] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0009] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that when used in this specification and the appended claims, the term "including" indicates the presence of the described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. It should also be understood that the terms used in this specification are merely for the purpose of describing specific embodiments and are not intended to limit this application. As used in this specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should also be further understood that the term "and / or" used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0010] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0011] It should be noted that when an element is fixed to another element, it includes fixing the element directly to the other element, or fixing the element to the other element through at least one other element in the middle. When an element is connected to another element, it includes connecting the element directly to the other element, or connecting the element to the other element through at least one other element in the middle.

[0012] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0013] This application first proposes a hot water system, such as Figures 1 to 4 As shown, Figure 1 This is a structural diagram of an embodiment of the hot water system of the present application; Figure 2 This is a schematic diagram of the water flow direction of the hot water system of the present application in the circulating filtration state; Figure 3 This is a schematic diagram of the water flow direction of the hot water system of the present application when the user is using water; Figure 4 The hot water system of the present application is a schematic diagram of the water flow direction when the user uses the water and the water is circulated and filtered. The hot water system includes a water heater body 11 and a circulation and filtering mechanism 13.

[0014] Among them, see Figure 1 The water heater body 11 is provided with a liquid storage chamber 10 and a first water inlet 20 , a first water outlet 30 , and a sewage outlet 40 connected to the liquid storage chamber 10 . A heating component 12 is also provided in the liquid storage chamber 10 .

[0015] The liquid storage chamber 10 is used to store liquids such as clean water. The liquid in the liquid storage chamber 10 can be discharged through the first water outlet 30 for user use. The heating component 12 in the liquid storage chamber 10 can heat the liquid in the liquid storage chamber 10.

[0016] Among them, see Figure 1 The circulation and filtration mechanism 13 includes a circulation pipe group 21 and a pressurizing member 22 and a filtering sub-mechanism 23 provided on the circulation pipe group 21. The circulation pipe group 21 is connected to the sewage outlet 40 and the first water inlet 20; Figure 2 , Figure 2 The flow direction of water in the hot water system in the circulation and filtration state is shown, wherein the pressurizing member 22 is configured to pressurize the fluid in the circulation pipe group 21, and the filtering sub-mechanism 23 is configured to filter the fluid in the circulation pipe group 21 to circulate and filter the fluid discharged from the sewage outlet 40 to the first water inlet 20.

[0017] The filtered fluid can flow back into the liquid storage chamber 10 through the first water inlet 20. The arrangement of the pressurizing member 22 can generate a strong water suction force near the sewage outlet 40.

[0018] During daily use, impurities such as scale and magnesium slag are usually deposited in the liquid storage chamber 10 of the hot water system due to long-term use. In order to clear the impurities in the liquid storage chamber 10, it is usually necessary to drain all the liquid in the liquid storage chamber 10 and discard it, which is a great waste of water resources and has high cleaning and maintenance costs.

[0019] In this embodiment, see Figure 1 、 Figure 2 The pressurizing element 22 pressurizes the fluid in the circulation pipe group 21, causing the liquid in the liquid storage chamber 10 to flow from the drain port 40 of the liquid storage chamber 10 into the circulation pipe group 21. After flowing through the pressurizing element 22 and the filter sub-mechanism 23 provided on the circulation pipe group 21, the liquid flows to the first water inlet 20, and then flows back to the liquid storage chamber 10, forming a circulation loop. When the liquid in the liquid storage chamber 10 flows into the drain port 40 under the action of the pressurizing element 22, impurities such as scale and magnesium slag in the liquid storage chamber 10 will enter the circulation pipe group 21 along with the flowing liquid. When the fluid in the circulation pipe group 21 flows through the filter sub-mechanism 23, the filter sub-mechanism 23 can filter the flowing fluid, so that impurities such as scale and magnesium slag are retained in the filter sub-mechanism 23. Under the action of the pressurizing element 22, the filtered fluid flows to the first water inlet 20 to flow back into the liquid storage chamber 10. Therefore, the circulation filtration mechanism 13 of this embodiment can realize the circulation filtration of the liquid in the liquid storage chamber 10, so there is no need to drain all the liquid in the liquid storage chamber 10 to achieve cleaning and maintenance of the liquid storage chamber 10, which can save water resources, simplify the user's cleaning steps for the liquid storage chamber 10, save cleaning time, and reduce the difficulty and cost of cleaning and maintenance.

[0020] Furthermore, since the self-cleaning of the cavity achieved through this circulation filtration does not require the complete discharge of the liquid in the liquid storage chamber 10, it can reduce the interference with the user's normal use of the hot water system when cleaning the liquid storage chamber 10, thereby improving the user's experience; further, since the hot water system of this embodiment can realize the circulation filtration of the liquid in the liquid storage chamber 10 at any time and is convenient and fast, reducing the cost of each cleaning and maintenance, the hot water system of this embodiment is convenient to increase the cleaning frequency of the liquid storage chamber 10, thereby improving the water quality of the hot water system, and further improving the user's experience.

[0021] This embodiment uses the filtering sub-mechanism 23 to filter the fluid containing impurities, and does not require the provision of additional detergents, so it will not cause pollution to the liquid in the liquid storage chamber 10, can achieve liquid recycling, and save water resources.

[0022] In some embodiments, the circulation filtering mechanism 13 is detachably disposed on the water heater body 11 .

[0023] In some embodiments, see Figure 1 、 Figure 2The filter sub-mechanism 23 includes a first filter assembly 31; the circulation pipe assembly 21 includes a first tube body 33. The first filter assembly 31 is disposed between the sewage outlet 40 and the first end of the first tube body 33, and the second end of the first tube body 33 is connected to the first water inlet 20. In some embodiments, the pressurizing member 22 is disposed within the first tube body 33 and is located between the first and second ends of the first tube body 33.

[0024] Specifically, the liquid flowing out of the sewage outlet 40 first enters the first filter assembly 31, is filtered, and then flows into the first tube body 33, and then flows through the first tube body 33 to the first water inlet 20. The pressurizing member 22 is disposed in the first tube body 33 to facilitate pressurizing the fluid in the first tube body 33.

[0025] This arrangement allows the first filter assembly 31 to be disposed at the first end of the first tube 33, making it easy to repair or replace the first filter assembly 31. For example, when the first filter assembly 31 reaches the end of its service life, its filter element can be removed and replaced, or a new first filter assembly 31 can be directly replaced, which is simple to operate.

[0026] In other embodiments (not shown), the first filter assembly 31 may be disposed between the first end and the second end of the first tube body 33 , for example, inside the first tube body 33 .

[0027] In other embodiments (not shown), the first tube 33 includes a first sub-tube and a second sub-tube. The first sub-tube is disposed between the sewage outlet 40 and the first filter assembly 31, and the second sub-tube is disposed between the first filter assembly 31 and the first water inlet 20. The first end of the first sub-tube serves as the first end of the first tube 33, and the second end of the second sub-tube serves as the second end of the first tube 33. The pressurizing member 22 can be disposed in either the first sub-tube or the second sub-tube.

[0028] Specifically, the liquid flowing out of the sewage outlet 40 first reaches the first end of the first sub-tube body, and then enters the first sub-tube body; the fluid flowing out of the first sub-tube body directly enters the first filter component 31, and the filtered fluid flows out to the first end of the second sub-tube body, and then enters the second sub-tube body. The fluid flowing out from the second end of the second sub-tube body enters the first water inlet 20.

[0029] Through the above arrangement, operations such as cleaning, maintenance, and replacement of the first filter assembly 31 can be achieved without penetrating into the interior of the first tube body 33 , thereby improving the convenience of cleaning and maintenance of the first filter assembly 31 .

[0030] In some embodiments, the pressurizing element 22 is disposed downstream of the first filter assembly 31 .

[0031] This arrangement can reduce the interference of impurities such as scale on the pressurizing member 22 and improve the stability and service life of the pressurizing member 22.

[0032] In other embodiments, the pressurizing member 22 may also be disposed upstream of the first filter assembly 31 .

[0033] In some embodiments, see Figure 1 、 Figure 2 The filtering sub-mechanism 23 further includes a second filtering component 32 , which is disposed between the second end of the first tube body 33 and the first water inlet 20 .

[0034] Specifically, the fluid in the first tube 33 first flows through the second filter assembly 32 before flowing to the first water inlet 20 , and then flows into the first water inlet 20 after being filtered.

[0035] The arrangement of the first filter assembly 31 and the second filter assembly 32 enables secondary filtration within a single cycle, improving filtration effectiveness. Furthermore, the placement of the second filter assembly 32 at the second end of the first tube 33 facilitates maintenance and replacement of the second filter assembly 32. For example, when the second filter assembly 32 reaches the end of its service life, its filter element can be removed and replaced, or a new second filter assembly 32 can be directly replaced, simplifying the process.

[0036] In other embodiments (not shown), a third filter assembly may be further provided in the first tube body 33 to achieve triple filtration in one cycle, thereby further improving the filtering effect.

[0037] In other embodiments (not shown), a fourth filter assembly may be further provided at the first water outlet 30 to filter the water during use.

[0038] This arrangement can further improve the water quality of users and reduce interference between the user's water use process and the circulation and filtration process. Specifically, when the circulation and filtration mechanism 13 is in the circulation and filtration state, there is a risk that impurities stirred up within the liquid storage chamber 10 will flow out through the first water outlet 30. Therefore, the provision of a fourth filter assembly at the first water outlet 30 can reduce this risk, allowing the hot water system to perform circulation and filtration at any time during user water use, thereby improving the frequency and effectiveness of cleaning.

[0039] In some embodiments, see Figure 1 、 Figure 2 The hot water system further includes a one-way valve 15 , which is disposed in the first pipe body 33 .

[0040] For example (not shown), the one-way valve 15 can be disposed between the pressurizing member 22 and the first filter assembly 31. In one application scenario, when the pressurizing member 22 is disposed downstream of the first filter assembly 31, the fluid first flows through the first filter assembly 31 to be filtered, then flows through the one-way valve 15, then flows to the pressurizing member 22, and finally flows out to the second end of the first tube 33.

[0041] In other application scenarios, see Figure 1 、 Figure 2 A one-way valve 15 can also be set downstream of the pressurizing member 22, that is, the fluid first flows through the first filter component 31 to be filtered, then flows through the pressurizing member 22, then flows to the one-way valve 15, and then flows out to the second end of the first tube body 33.

[0042] The above arrangement can reduce the risk of fluid backflow during the circulation filtration process and improve the working stability of the circulation filtration mechanism 13. When circulation filtration is not required, the pressure member 22 is closed. The presence of the one-way valve 15 can reduce the risk of impurities being carried back into the liquid storage chamber 10 by the backflowing fluid in the non-circulation filtration state.

[0043] Furthermore, when the hot water system is further provided with a second filter assembly 32 , the one-way valve 15 may be further provided between the second filter assembly 32 and the pressurizing member 22 .

[0044] For example, in one application scenario, when the pressure member 22 is arranged downstream of the first filter component 31 and upstream of the second filter component 32, the fluid first flows through the first filter component 31 to be filtered, then flows through the pressure member 22, and then flows to the one-way valve 15, and then flows to the second filter component 32 arranged at the second end of the first tube body 33. The fluid filtered by the second filter component 32 flows to the first water inlet 20.

[0045] The one-way valve 15 is arranged on the circulation loop of the circulation filtering mechanism 13, so as to improve the stability of the entire circulation filtering process.

[0046] In some embodiments, see Figure 1 、 Figure 2 The first water inlet 20 is disposed at the bottom of the liquid storage chamber 10. The water heater body 11 further includes a first water inlet pipe 41 disposed within the liquid storage chamber 10. A second water inlet of the first water inlet pipe 41 is connected to the first water inlet 20. The first water inlet pipe 41 is provided with a first water spray port 50. In some embodiments, the first water spray port 50 is disposed at least in the section of the first water inlet pipe 41 proximal to the first water inlet 20.

[0047] It should be noted that the bottom of the liquid storage chamber 10 refers to the bottom of the liquid storage chamber 10 in the direction of gravity when the hot water system is in normal working condition.

[0048] Specifically, the liquid flows back to the first water inlet pipe 41 through the first water inlet 20, and the fluid in the first water inlet pipe 41 is sprayed into the liquid storage chamber 10 through the first water spray port 50. This arrangement can promote the disturbance of the liquid in the liquid storage chamber 10, so that impurities such as scale deposited at the bottom of the liquid storage chamber 10 can more fully follow the flow of the liquid in the liquid storage chamber 10 and enter the circulation filtering mechanism 13 through the sewage outlet 40 under the action of the pressurizing member 22 to be filtered, thereby improving the effect of the circulation filtration.

[0049] Furthermore, the first water spray port 50 is disposed at least in the section of the first water inlet pipe 41 near the first water inlet 20, that is, the first water spray port 50 is disposed at least near the bottom of the liquid storage chamber 10. This arrangement can further promote the disturbance of the liquid near the bottom of the liquid storage chamber 10, thereby better disturbing impurities such as scale deposited at the bottom of the liquid storage chamber 10, improving the effect of lifting impurities, allowing them to more fully follow the flow of liquid in the liquid storage chamber 10 and enter the circulation filter mechanism 13 through the sewage outlet 40 under the action of the pressure member 22 for filtration, thereby improving the cleaning effect of the liquid storage chamber 10.

[0050] In some embodiments, the first water spray port 50 is at least directed toward the bottom.

[0051] Specifically, the liquid sprayed from the first water outlet 50 is directed toward the bottom, forming a strong impact water flow, which can flush the bottom of the liquid storage chamber 10, promote the scale and other impurities deposited at the bottom of the liquid storage chamber 10 to separate from the bottom wall 101 of the liquid storage chamber, so that such impurities can be more fully flushed away, thereby improving the cleaning effect of the circulating filtration process on the liquid storage chamber 10.

[0052] In some embodiments, see Figure 1 、 Figure 2 The first water inlet pipe 41 extends upward in a direction from the bottom of the liquid storage chamber 10 to the top of the liquid storage chamber 10, and the first water inlet 20 includes a plurality of first water spray outlets 50; the plurality of first water spray outlets 50 are distributed on the outer peripheral wall of the first water inlet pipe 41 along the circumference of the first water inlet pipe 41, and the plurality of first water spray outlets 50 are distributed on the entire first water inlet pipe 41 in a direction from the bottom of the liquid storage chamber 10 to the top of the liquid storage chamber 10.

[0053] By providing a plurality of first water spray ports 50 , the disturbing effect on the liquid in the liquid storage chamber 10 can be improved, thereby improving the cleaning effect on impurities in the liquid storage chamber 10 .

[0054] In other embodiments, the first water inlet pipe 41 may be arranged close to the bottom wall 101 of the liquid storage chamber and extend along the bottom wall 101 of the liquid storage chamber, for example, arranged parallel to the bottom wall 101 of the liquid storage chamber.

[0055] This arrangement enables the first water jet 50 on the first water inlet pipe 41 to disturb the liquid near more areas of the bottom wall 101 of the liquid storage chamber, achieving a wider range and stronger flushing of the bottom wall, thereby improving the cleaning effect of the liquid storage chamber 10. Furthermore, a portion of the first water inlet pipe 41 can be arranged close to the bottom wall 101 of the liquid storage chamber and extending along the bottom wall 101 of the liquid storage chamber, while another portion is arranged close to the side wall 102 or top wall of the liquid storage chamber and extending along the corresponding side wall 102 or top wall, so as to achieve disturbed flushing of impurities attached to the side wall 102 or top wall, thereby improving the cleaning effect of the liquid storage chamber 10. The first water jet 50 can also be arranged to at least face the corresponding wall to further improve the flushing effect.

[0056] In other embodiments, the first water inlet pipe 41 may not be provided to simplify the structural design.

[0057] In some embodiments, the drain outlet 40 is set at the bottom of the liquid storage chamber 10 to facilitate the use of the gravity of the liquid itself to push the liquid to the drain outlet 40, thereby promoting the circulation of the liquid between the liquid storage chamber 10 and the circulation pipe group 21.

[0058] In some embodiments, the first water outlet 30 is disposed at the bottom of the liquid storage chamber 10 , so as to utilize the gravity of the liquid itself to propel the liquid to flow to the first water outlet 30 , thereby improving water outlet efficiency.

[0059] In some embodiments, the hot water system further includes a second pipe 14 , a first end of the second pipe 14 is connected to the second end of the first pipe 33 , and the second end of the second pipe 14 is used to inject liquid into the first water inlet 20 .

[0060] In some application scenarios, see Figure 3 、 Figure 4 , Figure 3 Shows the direction of water flow in the hot water system when the user uses water. Figure 4 The diagram shows the flow of water within the hot water system during user use and circulation. When water is released from the first water outlet 30, the pressure in the liquid storage chamber 10 decreases. External water (e.g., tap water) automatically flows into the liquid storage chamber 10 through the second tube 14 under the pressure of the water. In other applications, a water inlet valve can be installed on the second tube 14 to control the addition of water to the liquid storage chamber 10.

[0061] Specifically, when adding water to the liquid storage chamber 10, the external water source can enter the second tube body 14 through the second end of the second tube body 14, and then flow to the first end of the second tube body 14 through the second tube body 14; since the first end of the second tube body 14 is connected to the second end of the first tube body 33, and the presence of the pressurizing member 22 prompts the fluid in the first tube body 33 to flow from the first end of the first tube body 33 to the second end of the first tube body 33, the occurrence of backflow can be reduced, so the fluid in the second tube body 14 can flow smoothly to the second end of the first tube body 33, and then can enter the liquid storage chamber 10 through the first water inlet 20.

[0062] The presence of the pressurizing member 22 can reduce the risk of the fluid in the second tube 14 flowing back to the first end of the first tube 33 through the second end of the first tube 33 , thereby reducing the risk of impurities following the fluid back into the liquid storage chamber 10 .

[0063] It should be noted that the specific composition of the external water source is not limited and can be set based on the user's usage requirements. In one application scenario, the external water source enters the second tube 14 under the action of external water pressure.

[0064] The above arrangement enables the addition of a second tube body 14 in communication with the first tube body 33 of the circulation tube assembly 21, utilizing a portion of the water path of the circulation tube assembly 21 to input an external water source to the first water inlet 20, thereby enabling the input of an external water source into the liquid storage chamber 10, i.e., enabling the operation of adding water to the liquid storage chamber 10. This arrangement enables the first water inlet 20 to provide both a fluid return inlet for the circulation loop for achieving cyclic filtration and a water inlet for adding water to the liquid storage chamber 10, thus achieving multiple uses. This reduces the number of openings in the liquid storage chamber 10, improves the stability and sealing of the liquid storage chamber 10, and simplifies the manufacturing process.

[0065] In one application scenario, in the circulating filtration state of the circulating filtration mechanism 13, the water inlet valve at the second end of the second tube body 14 can be opened. Under the action of external water pressure, the external water source flows through the second tube body 14 to the second end of the first tube body 33, and then can enter the liquid storage chamber 10 through the first water inlet 20, thereby realizing water injection into the liquid storage chamber 10.

[0066] In one application scenario, see Figure 3 The hot water system includes a one-way valve 15 arranged in the first pipe body 33.

[0067] This arrangement prevents fluid near the second end of the first tube 33 from flowing back to the drain outlet 40 near the first end of the first tube 33. Therefore, even when the circulating filtration mechanism 13 is closed, in the non-circulating filtration state, the one-way valve 15 can still reduce the risk of external water flowing back into the filtration sub-mechanism 23 and flowing to the drain outlet 40, thereby reducing the risk of impurities flowing back into the liquid storage chamber 10 and improving water quality. This arrangement can reduce interference between the water addition operation and the circulating filtration operation in the liquid storage chamber 10, simplifying operation difficulty and further improving the water quality within the liquid storage chamber 10.

[0068] In other embodiments, the first end of the second tube 14 may be directly connected to the first water inlet 20 to inject liquid into the first water inlet 20 .

[0069] In other embodiments, the second tube body 14 may be replaced by a water inlet connector 52 , which is provided on the first tube body 33 and is used to add water to the liquid storage chamber 10 .

[0070] In some embodiments, see Figure 1 、 Figure 2 、 Figure 3 The second tube body 14 is arranged at the second end of the second filter assembly 32 close to the first tube body 33 .

[0071] Specifically, when the hot water system further includes a second filter assembly 32, the second filter assembly 32 is disposed between the second end of the first tube 33 and the first water inlet 20, and the second tube 14 is disposed on a side of the second filter assembly 32 proximal to the second end of the first tube 33. When external water enters the second tube 14 from the second end of the second tube 14, flows to the first end of the second tube 14, first reaches the second end of the first tube 33, then flows from the second end of the first tube 33 to the second filter assembly 32, and only enters the first water inlet 20 after being filtered by the second filter assembly 32.

[0072] In the above manner, when adding water to the liquid storage chamber 10, the hot water system can filter the liquid added to the liquid storage chamber 10 at least once, and the filtered liquid can enter the liquid storage chamber 10 through the first water inlet 20, which can reduce the impurity content in the liquid storage chamber 10 and improve the water quality in the liquid storage chamber 10.

[0073] In other embodiments (not shown), a one-way valve 15 may also be provided in the second tube 14 to reduce the risk of liquid backflow.

[0074] In other embodiments (not shown), a dedicated third water inlet may be provided for adding water to the liquid storage chamber 10, so that the first water inlet 20 participates only in the circulating filtration process of the circulating filtration mechanism 13. For example, the water heater body 11 may further include a third water inlet in communication with the liquid storage chamber 10 for injecting liquid into the liquid storage chamber 10.

[0075] An additional third water inlet is provided to add water to the liquid storage chamber 10, so that the first water inlet 20 is only involved in the circulation filtration process of the circulation filtration mechanism 13, which can reduce the interference between the circulation filtration process and the water addition process of the liquid storage chamber 10. Among them, clean water or other liquids can be injected into the liquid storage chamber 10 through the third water inlet.

[0076] A component for filtering impurities may also be provided at the third water inlet to achieve pre-filtration.

[0077] In some embodiments (not shown), a second water inlet pipe connected to the third water inlet is provided. The second water inlet pipe is provided in the liquid storage chamber 10, and a plurality of third water spraying ports are provided at intervals along the extension direction of the second water inlet pipe.

[0078] The third water spray port can increase the water inlet coverage of the second water inlet pipe and improve the water inlet efficiency.

[0079] In some embodiments (not shown), the third water inlet is provided on the side wall 102 of the liquid storage chamber, and the second water inlet pipe extends perpendicular to the side wall and parallel to the bottom wall 101 of the liquid storage chamber.

[0080] Through the above-mentioned arrangement, the third water spray port can be used to flush the bottom wall and the side wall, thereby helping to promote the impurities deposited on the bottom wall and the side wall to be lifted up. Therefore, when the circulation filtering mechanism 13 is turned on during the process of adding water to the liquid storage chamber 10, it can further promote the impurities to flow into the sewage outlet 40 with the fluid and enter the circulation filtering process, thereby improving the cleaning effect.

[0081] Furthermore, a pipe for water inlet can also be provided for the first water inlet 20. For example, in some embodiments, the water heater body 11 further includes a spray pipe. The spray pipe is disposed within the liquid storage chamber 10 and communicates with the first water inlet 20. The spray pipe has at least a second water spray port facing the bottom.

[0082] The spray pipe here only participates in the circulating filtration process of the circulating filtration mechanism 13, which can reduce interference between the circulating filtration process and the water addition process of the liquid storage chamber 10. In the circulating filtration state, the specific operating principle of the spray pipe can be referred to as the first water inlet pipe 41 in the above embodiment, and the specific operating principle of the second water outlet can be referred to as the first water outlet 50 in the above embodiment, and will not be repeated here.

[0083] In other embodiments (not shown), a common spray pipe may be provided for the third water inlet and the first water inlet 20 , so that the spray pipe not only participates in the circulating filtration process of the circulating filtration mechanism 13 , but also participates in the water addition process of the liquid storage chamber 10 .

[0084] In some embodiments, the filter sub-mechanism 23 is detachably connected to the water heater body 11 .

[0085] The detachable connection can facilitate users to perform regular maintenance and replacement based on the service life of the filter sub-mechanism 23. Users only need to regularly replace or repair the filter sub-mechanism 23 to maintain the normal operation of the circulation filter mechanism 13, so that the circulation filter mechanism 13 can achieve circulation cleaning of the liquid storage chamber 10, which can improve operational convenience and user experience.

[0086] For example, at least one of the first filter assembly 31 and the second filter assembly 32 may be configured as a detachable assembly.

[0087] In some embodiments, the hot water system further includes a controller, which is electrically connected to the pressurizing component 22 and is used to control the operation of the pressurizing component 22 when the hot water system is in a cleaning state.

[0088] When the water heater is in the cleaning state, the controller controls the pressurizing element 22 to operate, thereby placing the circulating filter mechanism 13 in the circulating filter state. In this state, impurities such as scale and magnesium slag in the liquid storage chamber 10 flow through the circulating filter mechanism 13 along with the fluid and are retained in the filtering sub-mechanism 23 therein, thereby cleaning the liquid storage chamber 10.

[0089] For example, in one application scenario, when the user selects the inner tank cleaning function, the controller starts the pressurizing component 22 and the circulating filtering mechanism 13 is started, so that a strong circulating water flow is formed between the circulating pipe group 21, the filtering sub-mechanism 23 and the liquid storage chamber 10.

[0090] In some embodiments, see Figure 1 、 Figure 2 、 Figure 3 The hot water system also includes a flow sensor 16, which is arranged in the liquid storage chamber 10, the first water inlet 20, the sewage outlet 40 or the circulation pipe group 21. The flow sensor 16 is configured to obtain the flow rate of the circulating fluid in the cleaning state; the flow sensor 16 is electrically connected to the controller, and the controller is used to control the pressurizing member 22 to stop working when the flow rate exceeds the flow threshold.

[0091] Flow sensor 16 is positioned within the circulating filtration loop, enabling it to detect the flow rate of the circulating fluid during the cleaning process. Based on the flow data captured by flow sensor 16, the controller determines whether the total flow rate of the circulating fluid exceeds a threshold flow rate. If so, it controls pressurizing element 22 to stop operation, completing the cleaning process. In one application scenario, flow sensor 16 can also measure flow velocity, from which flow rate can be derived.

[0092] For example, if the capacity of the liquid storage chamber 10 is 10 liters, the flow rate threshold can be set to 10 liters, 15 liters, 20 liters, 25 liters, or 30 liters. When the total flow rate of the circulating fluid exceeds the flow rate threshold, the cleaning is determined to be complete and the pressure member 22 is controlled to stop working. Setting the flow rate threshold to be greater than the capacity of the liquid storage chamber 10 can improve the cleaning effect.

[0093] For another example, a water level detector may be provided within the liquid reservoir. When the water level in the liquid reservoir chamber 10 is detected to be 5 liters, the flow rate threshold may be dynamically adjusted to 5 liters, 6 liters, 10 liters, 12 liters, 15 liters, and so on. When the total flow rate of the circulating fluid exceeds the flow rate threshold, the cleaning process is determined to be complete, and the pressurizing element 22 is controlled to stop operating. Setting the flow rate threshold to be greater than the water level in the liquid reservoir chamber 10 can improve cleaning effectiveness while saving energy.

[0094] For another example, in response to the water volume detected by the water level detector being less than the minimum water volume value, a prompt message may be issued to prompt the user to add water, or the water inlet switch on the second tube body 14 may be automatically controlled to open to achieve automatic water addition; when the water volume detected by the water level detector is greater than the minimum water volume value, the pressure member 22 is controlled to work to enter the cleaning state.

[0095] In some embodiments, cleaning work (ie, circulating filtration) can be performed simultaneously during the water addition process, or the pressurizing member 22 can be controlled to operate after the water addition is completed to enter the cleaning state.

[0096] In some embodiments, the controller is configured to control the pressurizing member 22 to stop working when the working time of the pressurizing member 22 exceeds a time threshold.

[0097] Because the flow rate of the fluid circulating through the circulation pipe assembly 21 under the pressure of the pressurizing element 22 is constant under a certain rated power, the cleaning status can also be controlled by controlling the operating time of the pressurizing element 22. Specifically, when the operating time of the pressurizing element 22 exceeds a time threshold, the cleaning process is determined to be complete, and the pressurizing element 22 is controlled to stop operating.

[0098] The time threshold can be set in accordance with the setting method of the flow threshold. For example, the time threshold can be preset based on the capacity of the liquid storage chamber 10, the rated power or actual power of the pressurizing component 22, or it can be dynamically adjusted and selected by the controller based on the amount of water in the liquid storage chamber 10, the rated power or actual power of the pressurizing component 22. No further details will be given.

[0099] In some embodiments, the controller can control the pressurizing member 22 to start working in response to the pressurizing member 22 being inactive for a first preset time period. This configuration can achieve self-cleaning of the liquid storage chamber 10 based on a specific time schedule, can achieve intelligent automatic cleaning, and can improve the user experience and water quality.

[0100] In some embodiments, the hot water system also includes a water quality detection component, which is disposed in the liquid storage chamber 10 and is configured to obtain water quality parameters of the liquid in the liquid storage chamber 10; the water quality detection component is electrically connected to the controller, and the controller controls the operation of the pressurizing component 22 based on the water quality parameters.

[0101] The water quality detection element can be used to detect water quality parameters such as water hardness, impurity content, water temperature, etc. The controller controls the operation of the pressurizing element 22 based on the water quality parameters, which means that the controller can control the start and stop of the working state of the pressurizing element 22 based on the water quality parameters.

[0102] Since the purpose of the circulating filtration is to improve the water quality in the liquid storage chamber 10, the operation state of the pressurizing member 22 can also be controlled based on the water quality in the liquid storage chamber 10. In this way, whether the hot water system enters the cleaning state can be directly controlled in response to the water quality, thereby further improving the cleaning effect.

[0103] In some embodiments, the controller may control the pressurizing element 22 to start operating in response to the water quality parameter being less than or equal to a minimum parameter threshold, causing the circulating filtration mechanism 13 to enter a circulating filtration state, i.e., a cleaning state. Furthermore, the controller may control the pressurizing element 22 to stop operating in response to the water quality parameter being greater than or equal to a maximum parameter threshold, causing the circulating filtration mechanism 13 to exit the circulating filtration state, i.e., completing the cleaning process. In some embodiments, only one water quality parameter threshold may be set, and the controller may control the pressurizing element 22 to start operating in response to the water quality parameter being less than the water quality parameter threshold, and to stop operating in response to the water quality parameter being greater than the water quality parameter threshold.

[0104] In some embodiments, the water quality detection component is disposed in the liquid storage chamber 10 and close to the bottom of the liquid storage chamber 10 .

[0105] Since impurities such as scale are easily deposited, this arrangement can improve the accuracy of the water quality parameters obtained by the water quality detection element. The controller controls the operation of the pressurizing element 22 based on the more accurate water quality parameters, which can improve the cleaning effect. In some embodiments, the water quality detection element is arranged at the sewage outlet 40.

[0106] In some embodiments, the water quality detection element may be placed close to the heating assembly 12 .

[0107] This setup allows the water quality detector's test results to better reflect the water quality parameters of the hot water system under actual operating conditions, thereby obtaining more accurate water quality parameters. Specifically, water quality parameters (such as hardness and solubility) vary significantly with temperature. For example, calcium and magnesium ions in water are the main components of scale formation and dissolve more fully in cold water. The "hardness" detected in cold water may be lower than the actual hardness after heating. If the water quality detector is located away from the heating component 12, it will detect low-temperature water quality, which may not reflect the actual water quality of the hot water system during operation and may lead to misjudgment. Positioning it closer to the heating component 12 can reduce temperature-related detection bias and ensure that the test data is consistent with actual operating conditions. Furthermore, within the liquid storage chamber 10, the heating component 12 is in direct contact with the water and has the highest temperature, making it the area most prone to water quality problems (such as scale and corrosion). For example, the solubility of calcium and magnesium ions decreases sharply at high temperatures, making them more likely to crystallize and precipitate on the surface of the heating component, forming scale. Furthermore, during heating, the degree of water ionization increases, and the activity of corrosive ions (such as chloride ions) increases, increasing the risk of corrosion to the heating component. Therefore, placing the water quality detection component close to the heating component 12 can directly monitor the real-time water quality status of the heating area, such as calcium ion concentration, magnesium ion concentration, and corrosive ion activity, which can reflect the actual water quality at the working temperature and reduce detection deviation.

[0108] Through the above settings, the water quality detection component can capture water quality changes more quickly, allowing the controller to control the start and stop of the pressurizing component 22 based on the water quality status more timely, thereby improving the self-cleaning efficiency and self-cleaning effect of the hot water system.

[0109] In some embodiments, water quality parameters can also be obtained in response to the working time of the pressurizing component 22 exceeding a time threshold or the total flow of the circulating fluid exceeding a flow threshold; in response to the water quality parameter being greater than or equal to the corresponding parameter threshold (for example, the highest parameter threshold), the pressurizing component 22 is controlled to stop working, and it is determined that the cleaning is completed.

[0110] Furthermore, the controller may be configured to obtain water quality parameters in response to the operating time of the pressurizing member 22 exceeding a time threshold and the total flow of the circulating fluid exceeding a flow threshold.

[0111] In some embodiments, the controller can control the start and stop of the working state of the pressurizing member 22 in response to user instructions.

[0112] For example, in one application scenario, the hot water system further includes a command receiving component electrically connected to the controller for receiving user commands. The command receiving component may include a button, a knob, a microphone, or an input area of ​​a display screen disposed on the water heater body 11; or the command receiving component may include an antenna, a connector, etc. disposed on the water heater body 11. Upon receiving a user command, the command receiving component may control the start and stop of the operating state of the pressurizing member 22 based on the user command.

[0113] In some embodiments, the first filter assembly 31 includes: a water inlet connector 52, a mounting seat, a filter bottle 51, a filter cleaning assembly and a water outlet connector 53. The filter cleaning assembly is arranged in the filter bottle 51 through the mounting seat. The water inlet connector 52 is respectively connected to the sewage outlet 40 and the filter bottle 51, and the water outlet connector 53 is respectively connected to the first end of the first tube body 33 and the filter bottle 51.

[0114] Specifically, under the action of the pressurizing member 22, the fluid flows out from the sewage outlet 40 and then flows into the water inlet joint 52. The water inlet joint 52 flows the fluid back into the filter bottle 51. The fluid contacts the filter assembly in the filter bottle 51 to be filtered. The filtered fluid flows out of the filter bottle 51 through the water outlet joint 53 and then flows to the first end of the first tube body 33.

[0115] In some embodiments, a detachable structure is used between the filter bottle 51 and the water inlet connector 52 and the water outlet connector 53 to facilitate users to replace or maintain the filter bottle 51.

[0116] In some embodiments, the filter bottle 51 is a switchable structure, and the filter assembly is a detachable structure.

[0117] With the above arrangement, the user can open the filter bottle 51 and remove the filter assembly. This arrangement facilitates the user to remove impurities attached to the inner wall of the filter bottle 51, replace or clean the dirt and residue on the surface of the filter assembly, and improve the reuse rate of the filter bottle 51 and the filter assembly.

[0118] In some embodiments, the filter assembly can also be packaged so that users can regularly replace the filter assembly without cleaning, thereby improving user convenience.

[0119] In some embodiments, the filter bottle 51 can be a transparent bottle. This arrangement is convenient for the user to observe the amount of dirt at any time.

[0120] In some embodiments, filter materials for improving water quality, such as scale-inhibiting filter materials, strontium-zinc ore filter materials, etc., can be added to the filter bottle 51 or the filter assembly to effectively improve the water quality and enhance the user experience.

[0121] In some embodiments, the detachable structure in the first filter component 31 can be detachably fixed by means of threads, snaps, etc., and a sealing ring or other structure can be added to achieve sealing to prevent water leakage.

[0122] In some embodiments, the specific structure of the second filter component 32 can be improved with reference to the first filter component 31 and will not be described in detail here.

[0123] In some embodiments, the hot water system further includes a magnesium rod assembly 17 disposed in the liquid storage chamber 10 .

[0124] Typically, the inner wall of the liquid storage chamber 10 is mostly made of metal. When in contact with water for a long time, it will be corroded by ions in the water (such as chloride ions, calcium ions, etc.). This phenomenon will shorten the life of the wall of the liquid storage chamber 10. Since the chemical activity of magnesium is generally much higher than the chemical activity of the metal on the inner wall, a magnesium rod assembly 17 is provided in the liquid storage chamber 10, and the magnesium rod is connected to the inner wall of the liquid storage chamber 10 via a wire and immersed in water. This can enable the magnesium rod to act as a sacrificial anode, preferentially losing electrons and being corroded and dissolved, while the inner wall of the liquid storage chamber 10 is protected as a "cathode" to avoid oxidation and rust. Furthermore, the magnesium ions released after the magnesium rod dissolves can react with carbonates (such as calcium carbonate) in the water, which can reduce the formation of scale. Therefore, the above-mentioned arrangement can increase the service life of the liquid storage chamber 10 and improve the water quality.

[0125] In some embodiments, the circulation filtering mechanism 13 is fixed at the sewage outlet 40 , and the magnesium rod assembly 17 is fixed above the sewage outlet 40 .

[0126] When the magnesium rod is dissolved, magnesium slag will be dropped. Fixing the magnesium rod assembly 17 above the drain outlet 40 will help the dropped magnesium slag to fall directly into the area where the drain outlet 40 is located, so that impurities such as magnesium slag can be collected and flow into the drain outlet 40 as soon as possible for filtration, which can improve the cleaning effect.

[0127] In some embodiments, the pressurizing member 22 includes a water pump.

[0128] In some embodiments, the water quality detection element can also be used to detect the total dissolved solids (TDS) value of the water in the liquid storage chamber 10 .

[0129] TDS is one of the core indicators of water quality, which is specifically used to measure the total amount of soluble substances such as inorganic ions and small molecular organic matter dissolved in water.

[0130] For hot water systems, TDS changes can indicate scaling trends. For example, when TDS is too high, calcium and magnesium ions are more likely to precipitate and form scale. Furthermore, TDS changes can also reflect the filtering effect. For example, when the filtering function of the filter sub-mechanism 23 fails, the TDS will increase significantly.

[0131] Therefore, the controller can control whether to activate the pressurizing element 22 based on the TDS test results of the water quality detection element. Furthermore, the controller can also determine whether to prompt the user to replace or clean the filter sub-mechanism 23 or its internal components based on the comparison of the TDS results before the pressurizing element 22 is activated and after the pressurizing element 22 completes a working cycle.

[0132] For example, the controller obtains a first TDS value before the pressurizing member 22 is started and a second TDS value after the pressurizing member 22 completes a working cycle. In response to the difference between the second TDS value and the first TDS value being greater than a preset threshold, a prompt message is issued to prompt the user to check the filtering sub-mechanism 23.

[0133] In some embodiments, see Figure 1 、 Figure 4 The hot water system further includes a water flow rate sensor electrically connected to the controller, which is disposed in the liquid storage chamber 10 or at the first water outlet 30. The water flow rate sensor is used to detect the water flow rate of the first water outlet 30. When water flows out of the first water outlet 30, the liquid storage chamber 10 automatically fills with water. A first water inlet pipe 41 is disposed in the liquid storage chamber 10, a second water inlet of the first water inlet pipe 41 is connected to the first water inlet 20, and a first water spray port 50 is provided at least in a pipe section of the first water inlet pipe 41 close to the first water inlet 20. The first water spray port 50 is at least directed toward the bottom. The first end of the second tube body 14 is connected to the second end of the first tube body 33. The second end of the second tube body 14 is used to inject liquid into the first water inlet 20. In response to the first water outlet 30 starting to discharge water or the amount of water in the liquid storage chamber 10 decreasing, the controller controls the water outlet flow rate sensor to obtain the water outlet flow rate of the water outlet; in response to the water outlet flow rate being greater than or equal to the preset flow rate, the controller controls the pressure member 22 to start working and continue for a second preset time.

[0134] The flow sensor 16 in the above embodiment can be used as the water outlet flow rate sensor of this embodiment, and the flow sensor 16 is arranged at the position of the first water inlet 20. Since the liquid storage chamber 10 automatically fills with water when the first water outlet 30 discharges water, the water outlet flow rate can be obtained by detecting the water inlet flow rate.

[0135] Specifically, the pressurizing member 22 stops working after the second preset time. When the first water outlet 30 is discharging water, since the liquid storage chamber 10 is filled with water through the second tube body 14, the first water inlet pipe 41 serves not only as a reflux inlet of the circulating filtration process, but also as a water inlet for the liquid storage chamber 10 to add water. Figure 4 Under the dual water pressure of the external water source and the pressurizing member 22, the first water nozzle 50 will form a stronger impact water flow, which will greatly increase the flushing force on the inner wall of the liquid storage chamber 10, and can effectively disturb the deposited impurities, so that these impurities can follow the fluid to flow to the drain outlet 40 under the action of the pressurizing member 22, and then flow back to the liquid storage chamber 10 after being filtered.

[0136] Therefore, the above embodiment can utilize the water pressure of the water reservoir 10 when the user uses water to improve the impact effect on the deposited impurities, thereby enhancing the self-cleaning effect of the hot water system. Moreover, the above arrangement can automatically activate the self-cleaning of the liquid reservoir 10 every time the user uses water, thereby improving not only the cleaning effect but also the cleaning frequency.

[0137] In some embodiments, the second preset duration may be greater than 0s and less than or equal to 60s. For example, the second preset duration may be set to 5s, 10s, 15s, 20s, 23s, 25s, 30s, 40s, 50s, or 60s, etc. Preferably, it may be set to 10s.

[0138] In some embodiments, the preset flow rate is preferably set to 1 L / min to achieve a higher water inlet pressure. The preset flow rate can also be set to 0.8 L / min, 1.1 L / min, or 1.5 L / min.

[0139] In some embodiments, the preset parameters of the hot water system, such as the second preset time, can be set by the user. For example, the preset parameters in the controller can be set through cloud devices or wireless communication.

[0140] It should be noted that, in other embodiments, when the first water inlet pipe 41 only participates in the circulation filtration process, that is, only serves as the reflux inlet of the circulation filtration process, when the user uses water, the pressure-increasing part 22 of the circulation filtration mechanism 13 is started, and the third water outlet of the second water inlet pipe and the water inlet pressure of the external water source can be used to flush the inner wall of the liquid storage chamber 10, thereby improving the self-cleaning effect.

[0141] In some embodiments, see Figures 1 to 2 The hot water system further includes a water outlet pipe 18, which is connected to the first water outlet 30 and is used to guide the liquid in the liquid storage chamber 10 for use by the user.

[0142] In some embodiments, see Figures 1 to 3 A first water outlet pipe 19 is provided in the water heater body 11 and is connected to the first water outlet 30. The liquid in the liquid storage chamber 10 enters the first water outlet pipe 19 through the first water outlet hole on the first water outlet pipe 19, then flows to the first water outlet 30, and then flows out of the liquid storage chamber 10.

[0143] In some embodiments, the first water outlet pipe 19 extends from the bottom of the liquid storage chamber 10 to the top of the liquid storage chamber 10. A plurality of first water outlet holes are distributed along the circumference of the first water outlet pipe 19 and along the extension direction of the first water outlet pipe 19. Providing a plurality of first water outlet holes can improve water outlet efficiency.

[0144] This application further proposes a circulating filtering mechanism 13, such as Figures 1 to 4 See Figure 1The circulation and filtration mechanism 13 is used in a hot water system, which includes a water heater body 11 and the circulation and filtration mechanism 13. The circulation and filtration mechanism 13 includes a circulation pipe assembly 21, a pressurizing member 22 disposed on the circulation pipe assembly 21, and a filtering sub-mechanism 23. The circulation pipe assembly 21 connects the sewage outlet 40 of the water heater body 11 and the first water inlet 20 of the water heater body 11. The pressurizing member 22 is configured to pressurize the fluid in the circulation pipe assembly 21, and the filtering sub-mechanism 23 is configured to filter the fluid in the circulation pipe assembly 21, thereby circulating and filtering the fluid discharged from the sewage outlet 40 to the first water inlet 20.

[0145] The specific implementation and working principle of the circulating filtering mechanism 13 and related structures can be found in the above embodiments and will not be described again here.

[0146] In some embodiments, the filtering sub-mechanism 23 includes a first filtering component 31, the circulating pipe group 21 includes a first tube body 33, the first filtering component 31 is arranged between the sewage outlet 40 and the first end of the first tube body 33, and the second end of the first tube body 33 is connected to the first water inlet 20; the pressurizing member 22 is arranged in the first tube body 33 and is located between the first end and the second end of the first tube body 33; the filtering sub-mechanism 23 also includes a second filtering component 32, which is arranged between the second end of the first tube body 33 and the first water inlet 20.

[0147] The specific implementation and working principle of the first filter assembly 31, the second filter assembly 32, the first tube body 33 and related structures can be found in the above embodiments and will not be repeated here.

[0148] In some embodiments, the first water inlet 20 is located at the bottom of the liquid storage chamber 10 of the water heater body 11. The water heater body 11 also includes a first water inlet pipe 41 disposed within the liquid storage chamber 10. The second water inlet of the first water inlet pipe 41 is connected to the first water inlet 20. A first water spray port 50 is provided at least in the section of the first water inlet pipe 41 proximate to the first water inlet 20. The first water spray port 50 faces at least the bottom. In some embodiments, the hot water system also includes a second pipe 14. The first end of the second pipe 14 is connected to the second end of the first pipe 33. The second pipe 14 is disposed on a side of the second filter assembly 32 proximate to the second end of the first pipe 33. The second end of the second pipe 14 is used to inject liquid into the first water inlet 20.

[0149] The specific implementation and working principle of the first water inlet pipe 41, the first water spray port 50, the second tube body 14 and related structures can be found in the above embodiments and will not be repeated here.

[0150] Different from the prior art, the hot water system of the present application includes a water heater body and a circulation and filtering mechanism. The water heater body is provided with a liquid storage chamber and a first water inlet, a first water outlet, and a sewage outlet connected to the liquid storage chamber. A heating component is also provided in the liquid storage chamber. The circulation and filtering mechanism includes a circulation pipe group and a pressurizing member and a filtering sub-mechanism provided in the circulation pipe group. The circulation pipe group is connected to the sewage outlet and the first water inlet. The pressurizing member is configured to pressurize the fluid in the circulation pipe group, and the filtering sub-mechanism is configured to filter the fluid in the circulation pipe group so as to circulate and filter the fluid discharged from the sewage outlet to the first water inlet. In the present application, the pressurizing member pressurizing the fluid in the circulation pipe group will cause the liquid in the liquid storage chamber to flow from the sewage outlet of the liquid storage chamber into the circulation pipe group, and after flowing through the pressurizing member and the filtering sub-mechanism, it will flow to the first water inlet, and then flow back to the liquid storage chamber, forming a circulation loop. When the liquid in the liquid storage chamber flows into the drain outlet under the action of the pressure member, impurities such as scale and magnesium slag in the liquid storage chamber will enter the circulation pipe group along with the flowing liquid. When the fluid in the circulation pipe group flows through the filter sub-mechanism, the filter sub-mechanism can filter the flowing fluid, so that impurities such as scale and magnesium slag are retained in the filter sub-mechanism; under the action of the pressure member, the filtered fluid flows to the first water inlet and flows back into the liquid storage chamber. Therefore, the circulation filtration mechanism of this embodiment can realize the circulation filtration of the liquid in the liquid storage chamber, so that the liquid in the liquid storage chamber can be cleaned and maintained without draining all the liquid in the liquid storage chamber, which can save water resources and reduce the difficulty and cost of cleaning and maintaining the liquid storage chamber.

[0151] It is worth noting that the drawings in this article are only intended to illustrate the structural relationship and connection relationship of the product of this application, and do not limit the specific structural dimensions of the product of this application.

[0152] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A hot water system, characterized in that: The hot water system comprises: The water heater body is provided with a liquid storage cavity and a first water inlet, a first water outlet, and a sewage outlet connected to the liquid storage cavity. A heating component is also provided in the liquid storage cavity; a circulation filtering mechanism, comprising a circulation pipe group, a pressurizing member provided on the circulation pipe group, and a filtering sub-mechanism, wherein the circulation pipe group is connected to the sewage outlet and the first water inlet; The pressurizing member is configured to pressurize the fluid in the circulation pipe group, and the filtering sub-mechanism is configured to filter the fluid in the circulation pipe group so as to circulate and filter the fluid discharged from the sewage outlet to the first water inlet.

2. The hot water system according to claim 1, characterized in that The filtering sub-mechanism includes a first filtering assembly; The circulation pipe group includes a first pipe body, the first filter assembly is arranged between the sewage outlet and the first end of the first pipe body, and the second end of the first pipe body is connected to the first water inlet; The pressure member is disposed in the first tube and located between the first end and the second end of the first tube.

3. The hot water system according to claim 2, characterized in that The filtering sub-mechanism also includes a second filtering component, which is arranged between the second end of the first tube body and the first water inlet.

4. The hot water system according to claim 3, characterized in that The first water inlet is provided at the bottom of the liquid storage chamber, and the water heater body further comprises: The first water inlet pipe is arranged in the liquid storage cavity, the second water inlet of the first water inlet pipe is connected with the first water inlet, and the first water inlet pipe is provided with a first water spray port at least in the pipe section close to the first water inlet.

5. The hot water system according to claim 4, characterized in that The first water spray port is at least directed toward the bottom.

6. The hot water system according to claim 4, characterized in that The hot water system further comprises: a second tube body, wherein a first end of the second tube body is connected to a second end of the first tube body; The second end of the second tube is used to inject liquid into the first water inlet.

7. The hot water system according to claim 6, characterized in that The second tube body is arranged on a side of the second filter assembly close to the second end of the first tube body.

8. The hot water system according to claim 1, characterized in that The water heater body is further provided with a third water inlet communicated with the liquid storage cavity for injecting liquid into the liquid storage cavity; The water heater body further comprises a spray pipe which is arranged in the liquid storage cavity and is in communication with the first water inlet. The spray pipe is provided with a second water spray port which is at least directed toward the bottom of the liquid storage cavity.

9. The hot water system according to claim 1, characterized in that The filtering sub-mechanism is detachably connected to the water heater body.

10. The hot water system according to any one of claims 1 to 9, characterized in that: The hot water system further comprises: The controller is electrically connected to the pressurizing component and is used to control the operation of the pressurizing component when the hot water system is in a cleaning state.

11. The hot water system according to claim 10, characterized in that The hot water system further comprises: a flow sensor, disposed in the liquid storage chamber, the first water inlet, the sewage outlet or the circulation pipe group, the flow sensor being configured to obtain the flow rate of the circulating fluid in the cleaning state; The flow sensor is electrically connected to the controller, and the controller is used to control the pressurizing member to stop working when the flow exceeds a flow threshold.

12. The hot water system according to claim 10, characterized in that The controller is used to control the pressurizing component to stop working when the working time of the pressurizing component exceeds a time threshold.

13. The hot water system according to claim 10, characterized in that The hot water system further comprises: a water quality detection component, disposed in the liquid storage cavity and configured to obtain water quality parameters of the liquid in the liquid storage cavity; The water quality detection component is electrically connected to the controller, and the controller controls the operation of the pressurizing component based on the water quality parameters.

14. The hot water system according to claim 3, characterized in that The hot water system further comprises: The one-way valve is provided in the first tube body and is located between the pressurizing component and the first filter assembly, or is provided between the second filter assembly and the pressurizing component.

15. The hot water system according to claim 2, characterized in that The first filter assembly includes: a water inlet connector, a mounting seat, a filter bottle, a filter cleaning assembly and a water outlet connector. The filter cleaning assembly is arranged in the filter bottle through the mounting seat. The water inlet connector is respectively connected to the sewage outlet and the filter bottle, and the water outlet connector is respectively connected to the first end of the first tube body and the filter bottle.

16. A circulating filtration mechanism, characterized in that: Used in hot water systems, the hot water system includes a water heater body and a circulation filtering mechanism; The circulation and filtering mechanism includes a circulation pipe group, a pressurizing member and a filtering sub-mechanism provided on the circulation pipe group, and the circulation pipe group is connected to the sewage outlet of the water heater body and the first water inlet of the water heater body; The pressurizing member is configured to pressurize the fluid in the circulation pipe group, and the filtering sub-mechanism is configured to filter the fluid in the circulation pipe group so as to circulate and filter the fluid discharged from the sewage outlet to the first water inlet.

17. The circulating filtration mechanism according to claim 16, characterized in that: The filtering sub-mechanism includes a first filtering assembly; The circulation pipe group includes a first pipe body, the first filter assembly is arranged between the sewage outlet and the first end of the first pipe body, and the second end of the first pipe body is connected to the first water inlet; The pressure member is disposed in the first tube body and is located between the first end and the second end of the first tube body; The filtering sub-mechanism also includes a second filtering component, which is arranged between the second end of the first tube body and the first water inlet.

18. The circulating filtration mechanism according to claim 17, characterized in that: The first water inlet is provided at the bottom of the liquid storage cavity of the water heater body, and the water heater body further comprises: a first water inlet pipe disposed in the liquid storage cavity, wherein a second water inlet of the first water inlet pipe is connected to the first water inlet, and a first water spray port is provided at least in a pipe section of the first water inlet close to the first water inlet; The first water spray port is at least directed toward the bottom; The hot water system further comprises: The second tube body has a first end connected to the second end of the first tube body, the second tube body is arranged on a side of the second filter assembly close to the second end of the first tube body, and the second end of the second tube body is used to inject liquid into the first water inlet.

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