Hot water system and purifying and heating all-in-one machine

Abstract

The utility model discloses a hot water system and a clean heat all-in-one machine, the clean heat all-in-one machine comprises the hot water system, the hot water system comprises a hot tank assembly, a water pump assembly, an exhaust pipeline, a backflow pipeline and a flow control piece, the hot tank assembly comprises a tank body and a heating piece, the heating piece is installed on the tank body, and the tank body is provided with a water outlet and a water inlet; the hot water pipeline is communicated with the water outlet; the exhaust pipeline is communicated with the inside and the outside of the tank body; the water pump assembly is arranged on the hot water pipeline and used for pumping water in the tank body to flow out to the water outlet end of the hot water pipeline through the water outlet. The backflow pipeline is communicated with the hot water pipeline and the exhaust pipeline, and the backflow pipeline is connected to the position, located at the downstream position of the water suction pump, of the hot water pipeline; the flow control piece is used for adjusting the water flow of the backflow pipeline. The water pumping efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of drinking water device technology, and in particular to a hot water system and a water purifier and heat pump integrated machine. Background Technology

[0002] As people's living standards gradually improve and their health awareness increases, their requirements for drinking water quality are becoming increasingly stringent. Under this trend, integrated water purifiers and heaters, which effectively filter impurities and viruses and significantly improve water quality, are becoming increasingly popular and a common choice for many families, providing important protection for people's daily drinking water safety and health.

[0003] Most current water purifier and heating units are equipped with water heating components to quickly supply hot water while meeting users' needs for room temperature water, thus improving user convenience and satisfaction. However, when water is heated to boiling, a large number of bubbles are generated. These bubbles can reduce the water output and cause air blockage during the pumping process, affecting pumping efficiency. Utility Model Content

[0004] This application provides a hot water system and a combined water purifier and heat pump, which can improve pumping efficiency.

[0005] In a first aspect, embodiments of this application provide a hot water system, including a hot water tank assembly, a water pump assembly, an exhaust pipe, a return pipe, and a flow control device. The hot water tank assembly includes a tank body and a heating element, the heating element being installed in the tank body, the tank body having an outlet and an inlet; the hot water pipe is connected to the outlet; the exhaust pipe is connected to the inside and outside of the tank body; the water pump assembly is disposed on the hot water pipe and is used to pump water from the tank body through the outlet to the outlet end of the hot water pipe; the return pipe is connected to the hot water pipe and the exhaust pipe, the return pipe being connected to the hot water pipe downstream of the water pump; the flow control device is used to adjust the water flow rate of the return pipe.

[0006] In some embodiments, the flow control element is a flow restrictor.

[0007] In some embodiments, the flow control element is a reversing valve, which is located at the connection between the inlet end of the return pipe and the hot water pipe, and selectively directs the water in the tank to either the outlet end of the return pipe or the hot water pipe.

[0008] In some embodiments, the flow control element includes:

[0009] A first solenoid valve selectively connects the outlet of the water pump assembly to the inlet; and

[0010] The second solenoid valve can selectively connect the outlet of the water pump assembly and the outlet of the hot water pipe.

[0011] In some embodiments, it also includes:

[0012] Water supply pipeline, connected to and connected to the tank; and

[0013] An exhaust pipe connects the inside and outside of the tank and is attached to the top of the tank.

[0014] The inlet pipe is connected to the outlet. At least a portion of the centerline of the inlet pipe is arc-shaped. The portion of the inlet pipe closest to the outlet extends upwards, and its inner diameter gradually decreases from top to bottom.

[0015] In some embodiments, the water inlet pipe further includes:

[0016] The first pipe section is connected to the outlet at one end, and its inner diameter gradually decreases from top to bottom;

[0017] An arc-shaped transition section is connected to the end of the first pipe section furthest from the outlet; and

[0018] The second pipe section is connected to the end of the arc-shaped transition section away from the first pipe section, and the other end of the second pipe section is connected to the water pump.

[0019] The centerline of the second pipe section is set at an angle to the centerline of the first pipe section, and the water pump has a water pump inlet connected to the second pipe section, wherein the water pump inlet is oriented horizontally or inclined upward.

[0020] In some embodiments, the inner diameter of the arc-shaped transition section is gradually reduced in the direction of the outlet near the water pump.

[0021] In some embodiments, the water pump includes:

[0022] The water inlet has the water pump inlet, which extends outward from the main body of the water pump and extends into the interior of the second pipe section. The water pump inlet on the water inlet is located at the corner between the arc-shaped transition section and the second pipe section.

[0023] In some embodiments, the inner diameter of the water inlet is gradually reduced in the direction of the water outlet near the water pump.

[0024] In some embodiments, the first pipe segment extends vertically, and the centerline of the first pipe segment is perpendicular to the centerline of the second pipe segment.

[0025] In some embodiments, the tank body includes a tank bottom cover, the tank bottom cover being provided with the water outlet, and the hot tank assembly further includes:

[0026] A water pipe is connected to the bottom cover of the tank and to the outlet. The water pipe extends vertically and its drain end is connected to the first pipe section.

[0027] In some embodiments, the connecting water pipe extends into the tank body, and in the height direction, the water inlet end of the connecting water pipe is higher than the bottom cover of the tank.

[0028] Secondly, embodiments of this application provide an integrated air purifier and heater, comprising:

[0029] Housing assembly;

[0030] The hot water system described above is installed within the housing assembly; and

[0031] A filtration system is installed within the housing assembly and is connected to the hot water system.

[0032] In some embodiments, the integrated air purifier and heater further includes a controller, a first temperature sensor, a second temperature sensor, and a faucet. The filtration system includes a booster pump, a filter element, and a purified water pipe connected to the outlet of the filter element. The purified water pipe and the outlet pipe connected to the water outlet are both connected to the faucet.

[0033] The first temperature sensor is used to detect the temperature inside the tank, the second temperature sensor is used to detect the temperature of the pure water inside the purified water pipe, and the controller is used to receive the detection values ​​from the first temperature sensor and the second temperature sensor, and control the operating power of the water pump assembly and the booster pump to generate water at a set temperature at the faucet.

[0034] In this application, the air pressure inside the tank decreases during the pumping process. In a low-pressure environment, gas expands and flows more easily, making it easier for gas in the pipes to be drawn into the pump, increasing the risk of air blockage and affecting the pumping efficiency and stability. This application addresses this by using a return pipe to mitigate the pressure drop inside the tank. Furthermore, this application includes a flow control device to regulate the water flow rate in the return pipe. This device ensures the water flow rate in the return pipe remains at a suitable level, effectively balancing pressure and preventing insufficient flow at the hot water outlet, thus ensuring both system stability and a sufficient supply of hot water. For example, when the hot water system starts up or the load suddenly increases, the flow control device allows the return pipe to provide a larger flow rate to balance the system pressure. When the hot water system is operating stably and the load changes little, the flow control device allows the return pipe to maintain a balanced state with a smaller flow rate. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of an embodiment of the integrated heat dissipation and cooling unit of this application;

[0037] Figure 2 This is a schematic diagram of the assembly structure of the outer shell and the middle shell of the integrated heat dissipation and cooling unit of this application;

[0038] Figure 3 This is a schematic diagram of the structure of the integrated air-purifier and heat-dissipating unit after removing the outer casing;

[0039] Figure 4 This is a schematic diagram of the assembly structure of the inner shell and heat insulation cover of the integrated heat dissipation and cooling unit in this application;

[0040] Figure 5 This is a water flow diagram of the integrated water purification and heating unit of this application;

[0041] Figure 6 This is a schematic diagram of the middle shell of the integrated heat dissipation and cooling unit of this application;

[0042] Figure 7 This is a structural diagram of the integrated air-purifier and heat-dissipating unit with the side panels removed, as per this application.

[0043] Figure 8 This is a schematic diagram of the water circuit of the hot water system according to the first embodiment of this application;

[0044] Figure 9 This is a schematic diagram of the water circuit of the hot water system according to the second embodiment of this application;

[0045] Figure 10 This is a schematic diagram of the water circuit of the hot water system according to the third embodiment of this application;

[0046] Figure 11 This is a partial structural diagram of the hot water system of this application;

[0047] Figure 12 This is a partial structural front view of the hot water system of this application;

[0048] Figure 13 for Figure 12 Schematic diagram of the cross section at point AA;

[0049] Figure 14 for Figure 13 Enlarged diagram of point B in the middle.

[0050] Explanation of icon numbers:

[0051] 1. Integrated air purifier and heat pump unit; 10. Shell assembly; 12. Middle shell; 121. Base plate; 122. Water channel plate support; 1221. Seat body; 1222. Limiting plate; 123. Filter support; 1231. Mounting cavity; 1232. Mounting port; 124. Enclosure; 1241. First plate; 1242. Second plate; 125. Support base; 126. Supporting component; 10A. 11. Outer shell; 13. Front panel; 14. Back panel; 15. Top panel; 16. Bottom panel; 17. Side panel; 10a. Cavity; 103. Heating chamber; 20. Heating assembly; 21. Tank body; 21a. Heating chamber; 211. Tank body; 212. Top cover; 213. Bottom cover; 214. Inlet; 215. Exhaust port; 216. Outlet; 218. Connecting water pipe; 219. Inlet; 22. Heating element; 201. Hot water pipe; 202. Return pipe; 2031. Flow restrictor; 2032. Reversing valve; 2033. First solenoid valve; 2034. Second solenoid valve; 204. Water supply pipe; 205. Vent pipe; 30. Water pump; 35. Water inlet; 351. Pump inlet; 32. Water inlet pipe; 321. First pipe section; 322. Arc-shaped transition section; 32 3. Second pipe section; 50. Filtration system; 51. Primary filter element; 52. Secondary filter element; 53. Booster pump; 60. Water circuit board; 61. First water circuit board; 62. Second water circuit board; 63. Inlet valve; 64. Check valve; 65. Wastewater plug; 66. Make-up water valve; 70. Thermal insulation component; 71. Thermal insulation cover; 80. Control board; 90A. Leakage probe; 2. Faucet; 3. Pipeline machine.

[0052] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0054] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0055] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] Please see Figures 1 to 3 This application proposes an integrated water purifier and heat pump unit 1. In the embodiments of this application, the integrated water purifier and heat pump unit 1 includes a housing assembly 10, a water circuit board 60, a filtration system 50, and a hot water system. The hot water system includes a heating tank assembly 20 and a water pump assembly.

[0058] The housing assembly 10 serves as the external frame of the entire integrated air purifier and heater unit 1, and its overall outer contour is rectangular. This design makes it particularly suitable for installation in kitchen areas. Kitchens typically have regular cabinet space, and the rectangular integrated air purifier and heater unit 1 can be easily embedded under the cabinets or placed in a corner of the kitchen countertop, blending seamlessly with the overall kitchen environment.

[0059] The water channel plate 60 provides water flow channels so that the pure water filtered by the filtration system 50 can flow to the heating tank assembly 20 for heating. Simultaneously, the water channel plate 60 also discharges filtered wastewater. By placing the water channel plate 60 inside the housing assembly 10, the protective performance of the housing assembly 10 is fully utilized to protect the water channel plate 60. The water channel plate 60 can have multiple water flow channels, making installation more convenient and faster compared to traditional decentralized water pipe connections. Regarding the material of the water channel plate 60, a high-strength and corrosion-resistant composite material is selected. This material not only has excellent resistance to chemical corrosion, effectively resisting the corrosion of the water channel plate 60 by various acids and alkalis that may be present in the water, but its unique molecular structure also allows the water channel plate 60 to maintain structural integrity and dimensional stability even under long-term water pressure and temperature changes, thus ensuring smooth and unobstructed water flow.

[0060] Reference Figure 4 In some embodiments, the water channel plate 60 includes a first water channel plate 61 and a second water channel plate 62 that are connected to each other. The filtration system 50 and the hot tank assembly 20 are located on opposite sides of the first water channel plate 61, and the second water channel plate 62 is set at an angle to the first water channel plate 61. Specifically, the second water channel plate 62 and the first water channel plate 61 can be set at a perpendicular 90-degree angle. This standardized 90-degree angle design facilitates mold development and standardization of production processes, reduces production costs and production cycles, and also makes it easier for maintenance personnel to quickly locate and replace water channel plate 60 components when equipment malfunctions, reducing maintenance time and costs. Of course, the angle between the first water channel plate 61 and the second water channel plate 62 can also be 70°, 80°, 100°, 110°, etc. The above-mentioned configuration optimizes the internal space utilization and performance of the housing component 10, allowing for flexible layout based on the actual internal space of the housing component 10. It effectively adapts to the installation positions of the filtration system 50 and the heating tank component 20, avoiding the space waste problem caused by the structural limitations of the traditional water circuit board 60. This makes the connection between the components more compact and efficient, reduces unnecessary pipe length and complexity, lowers water flow resistance, thereby improving water purification efficiency and water flow stability, reducing the risk of leakage, and ensuring the reliable operation of the integrated water purifier and heater 1.

[0061] The filtration system 50 is a key component of the integrated water purifier and heat exchanger 1. Located inside the housing assembly 10, it fully utilizes the protective properties of the housing to prevent dust, moisture, and other potential contaminants from interfering with the filtration process, thus ensuring the reliability and stability of the filtration effect. The filtration system 50 and the heating tank assembly 20 are connected via a water circuit board 60. The filtration system 50 includes a primary filter element 51, a secondary filter element 52, and a booster pump 53. The primary filter element 51 and the secondary filter element 52 are connected and communicate with each other via the water circuit board 60. The booster pump 53 is used to transport the liquid filtered by the primary filter element 51 to the secondary filter element 52 through the water circuit board 60. The primary filter element 51 can be PAC (Polyaluminium Chloride), serving as a primary filtration unit, mainly targeting and removing larger particulate impurities, suspended solids, some colloids, and some microorganisms in the water. The filter material used has a large pore size and surface area, which can efficiently capture these larger pollutants and prevent them from entering subsequent filtration stages, thereby protecting the secondary filter element 52 from excessive clogging and contamination and extending the service life of the entire filtration system 50. The booster pump 53 plays a crucial power role in the filtration system 50. Its main function is to provide sufficient pressure for the water filtration process, ensuring that the water, after preliminary filtration by the primary filter element 51, can enter the secondary filter element 52 at a stable and appropriate flow rate through the water channel plate 60 or water pipe for deep purification. The water, after preliminary filtration by the primary filter element 51, is transported to the secondary filter element 52 through the water channel plate 60 under the action of the booster pump 53. The secondary filter element 52 can be RO (Reverse Osmosis), a key step in achieving deep purification. It uses finer filter material, effectively removing residual microparticles, dissolved organic matter, heavy metal ions, bacteria, viruses, and other harmful substances from the water. These tiny pollutants often pose a potential threat to human health. Through the fine filtration of the secondary filter cartridge 52, safe, pure, and healthy drinking water can be provided to users.

[0062] The hot water tank assembly 20 is used to store and heat the filtered pure water so as to meet the user's hot water needs at any time, thereby improving the functionality and practicality of the equipment.

[0063] A water pump 30 is located inside the housing assembly 10 and connected to the water circuit board 60. The pump 30 draws hot water from the heating tank assembly 20 and discharges it through the water circuit board 60, enabling the integrated water purifier and heater 1 to provide efficient and stable water supply. This ensures users don't need to worry about insufficient water pressure or unstable water flow affecting their daily water use. The water circuit board 60 can also be equipped with an inlet valve 63, a check valve 64, a wastewater plug 65, and a water replenishment valve 66. The inlet valve 63 controls the flow of water into the filtration system 50 on the water circuit board 60. The check valve 64 is located between the filtration system 50 and the heating tank assembly 20 to prevent backflow of filtered water. (Refer to reference...) Figure 5 Thus, the water flow path of this application is as follows: Tap water first flows into the water circuit board 60 through the interface, and then passes through the primary filter element 51 for initial filtration. Subsequently, driven by the booster pump 53, the water flows through the secondary filter element 52 for secondary filtration. The wastewater after two stages of filtration is discharged through the wastewater plug 65, while the pure water is divided into two paths through the one-way valve 64. One path can be supplied to the external water supply unit 3, directly outputting room temperature water; the other path, after the water supply valve 66 is opened, flows to the heating tank assembly 20, and becomes hot water under the heating effect of the heating tank assembly 20. When the user turns on the faucet 2, the water pump 30 will start, drawing out the hot water from the heating tank assembly 20 for use. In addition, the exhaust pipe 205 of the heating tank assembly 20 is directly connected to the faucet 2 to ensure smooth and safe gas discharge.

[0064] However, due to the large number of components in the filtration system 50 and the lack of a systematic installation sequence, problems often arise during assembly, such as limited operating space, inaccurate component positioning, and difficulty in real-time debugging and testing. This results in low assembly efficiency and a low product qualification rate. To solve the above problems, the housing assembly 10 of this application includes a middle shell 12 and an outer shell 10A. The outer shell 10A is framed on the outer periphery of the middle shell 12, and the water channel plate 60, the filtration system 50, and the hot tank assembly 20 are all connected to the middle shell 12.

[0065] Based on the above embodiments, by adopting a housing assembly 10 including a middle shell 12 and an outer shell 10A, and connecting the water circuit board 60, the filtration system 50, and the heating tank assembly 20 to the middle shell 12, the assembly process and performance of the integrated air purifier and heat pump unit 1 are greatly optimized. In terms of assembly, the middle shell 12 provides a stable and relatively independent assembly platform for each component, solving the assembly difficulties caused by limited operating space. Workers can more conveniently and accurately position and install the filtration system 50 and the heating tank assembly 20, improving assembly efficiency and accuracy. Compared with direct assembly inside the outer shell 10A, operating on the middle shell 12 reduces the inconvenience caused by the shape and space limitations of the outer shell 10A.

[0066] Meanwhile, this connection method facilitates real-time debugging and testing of each component during assembly. Specifically, after the filtration system 50 and the heating tank assembly 20 are installed on the middle shell 12, preliminary debugging and testing of some functional modules on the middle shell 12 can be performed. This allows for timely identification and resolution of potential problems, reducing rework and maintenance workload, effectively improving product qualification rate, and lowering production costs. In contrast, if testing is only conducted after the outer shell 10A is sealed, any problems discovered would require disassembling the outer shell 10A for repair, increasing the difficulty and cost of maintenance. From a performance perspective, the stable assembly structure ensures the reliability of the connection between the water circuit board 60, the filtration system 50, and the heating tank assembly 20, ensuring stable water flow and effective heat utilization, improving the overall operational stability and reliability of the equipment, and thus providing users with a more stable and efficient integrated cooling and heating experience.

[0067] It should be noted that the outer shell 10A and the middle shell 12 are fixed together by screws or clips to ensure a tight fit, maintain the stability and protection of the overall structure, and protect the internal components from external interference. The outer shell 10A may include a front panel 11, a back panel 13, a top panel 14, side panels 16, and a bottom panel 15. The front panel 11 is located on the front of the integrated air purifier and heat pump unit 1 and includes an operating interface and indicator lights. The back panel 13 is located at the rear of the integrated air purifier and heat pump unit 1 and is tightly connected to the side panels 16 to enclose the rear of the unit. The top panel 14 is located on the top of the integrated air purifier and heat pump unit 1, and the side panels 16 surround the sides of the unit, seamlessly connecting with other panels. The bottom panel 15 bears the weight of the integrated air purifier and heat pump unit 1 and isolates it from the ground.

[0068] Combined with reference Figure 6 In some embodiments, the middle shell 12 includes a base plate 121, a water channel plate support 122, and a filter support 123. The base plate 121 includes a mounting surface and an abutment surface disposed opposite to each other. The abutment surface is fixed to the inner wall of the outer shell 10A, and the hot tank assembly 20 is connected to the mounting surface. The base plate 121, as a fundamental component, plays a crucial role with its oppositely disposed mounting surface and abutment surface. The abutment surface is tightly fixed to the inner wall of the outer shell 10A, forming a stable connection structure. This effectively enhances the pressure resistance of the entire shell assembly 10, allowing the integrated water purifier and heat pump 1 to better protect its internal components from damage when subjected to external pressure or impact, thereby extending the service life of the integrated water purifier and heat pump 1 and reducing the maintenance costs and replacement frequency incurred by users due to malfunctions of the integrated water purifier and heat pump 1. The hot tank assembly 20 can be fixed to the mounting surface by means of screws or clips.

[0069] The water circuit board support 122 is connected to the mounting surface, and the water circuit board 60 is connected to the water circuit board support 122. After being connected to the water circuit board support 122, the water circuit board 60 maintains a stable working state, preventing displacement or deformation due to its own weight or water flow impact. A stable water circuit board 60 ensures smooth internal flow, reduces water flow resistance, and improves water transmission efficiency, making the water purification process more efficient and faster, meeting users' needs for a stable water supply. Furthermore, precise support positioning helps improve the connection accuracy of the water circuit board 60 with other components, further reducing the risk of leakage and ensuring the sealing and reliability of the entire water purification system.

[0070] The filter support 123 is connected to the mounting surface and spaced apart from the water circuit board support 122. The filtration system 50 is connected to the filter support 123. This provides a dedicated installation location for the filtration system 50. After being connected to the filter support 123, the filtration system 50 can operate in a relatively stable and independent space, reducing interference from external factors on the filtration process and ensuring the stability and reliability of the filtration effect. At the same time, the spaced-out structure helps optimize the internal spatial layout of the equipment, making the connections between components more reasonable and compact, facilitating the installation, maintenance, and repair of the equipment. Maintenance personnel can more easily perform operations such as filter element replacement and cleaning on the filtration system 50, reducing maintenance difficulty and cost, and improving the maintainability of the equipment.

[0071] The aforementioned arrangement places the water circuit board 60, the filtration system 50, and the hot tank assembly 20 on one side of the mounting surface of the base plate 121. From the perspective of production and assembly convenience, concentrating these key components on the same side of the mounting surface of the base plate 121 allows workers to complete the installation of components such as the water circuit board 60, the filtration system 50, and the hot tank assembly 20 sequentially and orderly from a relatively fixed position and direction, eliminating the need for complex flipping operations. This significantly shortens assembly time, reduces manpower input, and improves production efficiency. This same-side layout also plays an important role in the overall stability and reliability of the equipment. Because the relative positions of components such as the water circuit board 60, the filtration system 50, and the hot tank assembly 20 are more compact and stable after installation, problems such as loose connections and displacement that may occur due to components being distributed on different sides are reduced.

[0072] Furthermore, the middle shell 12 also includes a enclosure 124, which is connected to the edge of the mounting surface. The water channel plate support 122, filter support 123, base plate 121, and several baffles enclose a cavity 10a, within which the heat tank assembly 20 and the water channel plate 60 are located. From the perspective of the overall equipment structure, the presence of the enclosure 124 further improves the structural integrity of the middle shell 12 and enhances the protection of the internal components. It effectively prevents external dust, moisture, and other possible impurities from entering the cavity 10a. The cavity 10a provides a relatively stable and independent working environment for the heat tank assembly 20 and the water channel plate 60. The space formed by the tightly enclosed components reduces interference from external factors on the heat tank assembly 20 and the water channel plate 60. In addition, when maintenance or repair is required, the presence of the cavity 10a allows maintenance personnel to more clearly locate and operate the heat tank assembly 20, the water channel plate 60, and their related components. Compared to open or loosely structured equipment, the enclosed cavity 10a reduces the difficulty of component location and troubleshooting, improves maintenance efficiency, and reduces maintenance costs and time.

[0073] Combined with reference Figure 3 , Figure 4 as well as Figure 7 In some embodiments, the integrated water purifier and heat pump 1 further includes a heat insulation component 70 disposed within the housing assembly 10, dividing the cavity 10a of the housing assembly 10 into a filter element cavity and a heating tank cavity 103. The filtration system 50 is located within the filter element cavity, and the heating tank assembly 20 is located within the heating tank cavity 103. By setting the heat insulation component 70 to divide the cavity 10a of the housing assembly 10 into the filter element cavity and the heating tank cavity 103, on the one hand, it effectively blocks the large amount of heat generated by the heating tank assembly 20 during operation from radiating to the filtration system 50, avoiding the problem of accelerated aging of the filter material and reduced filtration efficiency and accuracy caused by heat radiation, ensuring that the filtration system 50 can maintain high-efficiency filtration performance for a long time, thereby continuously and stably providing users with clean and safe drinking water. On the other hand, due to the heat insulation effect of the heat insulation component 70 on the heating tank assembly 20, the temperature impact of heat on the room temperature water is reduced, allowing the room temperature water to be maintained within a suitable temperature range, ensuring the user's demand for room temperature water quality, and avoiding problems such as changes in water quality and taste caused by increases in room temperature water temperature. At the same time, it prevents the internal sealing material of the filtration system from deforming and being damaged due to high temperature, as well as interference with sensitive electronic components or sensors. This reduces the probability of equipment leakage, improves the overall operational stability and safety of the equipment, lowers user operating costs and maintenance frequency, and brings users a more reliable and convenient user experience.

[0074] Furthermore, the heat insulation component 70 includes a heat insulation cover 71, which is detachably connected to the middle shell 12 and together with the middle shell 12 forms the hot tank cavity 103. The heat insulation cover 71 can effectively reduce heat loss from the hot tank assembly 20 to the surrounding environment and improve heat utilization efficiency. Compared with traditional heat insulation materials applied to the hot tank assembly 20, the heat insulation cover 71 has better integrity and stability. Applying heat insulation materials may crack or peel off over time, thereby reducing the heat insulation effect. However, as an independent structural component, the heat insulation cover 71 can always maintain complete heat insulation performance, effectively blocking heat loss from the hot tank assembly 20 to the surrounding environment and improving heat utilization efficiency. At the same time, compared with some embedded heat insulation structures, the detachable nature of the heat insulation cover 71 provides great convenience for maintenance personnel. When the hot tank assembly 20 malfunctions and requires repair or replacement, the repair operation is often extremely complex, potentially requiring the removal of numerous surrounding components to access the hot tank assembly 20. However, the heat shield 71 can be easily removed from the inner shell 12, allowing direct access to the hot tank assembly 20. This eliminates the need for arduous searching and handling of faulty components within the complex heat insulation structure, significantly reducing repair and downtime, and improving equipment availability and maintenance efficiency. Furthermore, the heat insulation component 70 may also include an insulation layer attached within the inner shell 12 to further enhance the insulation effect.

[0075] Furthermore, the enclosure 124, base plate 121, filter support 123, and water channel plate support 122 are integrated into a single component. This integrated design greatly enhances the overall strength and rigidity of the inner shell 12. With no gaps or weak points between the components, the inner shell 12 can more stably withstand the weight of the internal water tank, water channel plate 60, and filter system 50, as well as external impacts and vibrations. This effectively prevents component deformation, displacement, or damage caused by long-term use or accidental collisions, ensuring the stable operation of the precision components inside the equipment, reducing the probability of equipment failure, and extending the equipment's service life.

[0076] Reference Figure 6 and Figure 7In some structural configurations, the filter support 123 and the water channel plate support 122 are arranged sequentially along the front-rear direction of the outer casing 10A, with the hot tank assembly 20 located on the side of the water channel plate support 122 away from the filter support 123. This arrangement of the filter support 123 away from the hot tank assembly 20 effectively reduces the high-temperature impact of the hot tank assembly 20 on the filtration system 50. Since the hot tank assembly 20 generates heat during operation, if it is too close to the filtration system 50, the high-temperature environment may negatively affect the performance of the filter material. By maintaining a certain distance between the filter support 123 and the hot tank assembly 20, the filtration system 50 can be kept in a relatively stable and suitable temperature environment, ensuring stable performance of the filter material, maintaining efficient filtration, extending the overall service life of the filtration system 50, reducing user operating and maintenance costs, and improving product reliability and durability.

[0077] Furthermore, the filter support 123 has an installation cavity 1231, and an installation port 1232 communicating with the installation cavity 1231 is opened on the side of the filter support 123 facing away from the water circuit board support 122. The installation port 1232 is used for the filter element of the filtration system 50 to pass through and be installed in the installation cavity 1231. It can be understood that when the filter element passes through the installation port 1232 and is fixed in the installation cavity 1231, the filter element and the filter support 123 form a tightly integrated whole structure. This can effectively prevent the filter element from being displaced, loosened or even damaged due to water flow impact, equipment vibration or other external factors, thereby ensuring the stability and reliability of the filtration system 50, so that the filtration process can be carried out continuously and efficiently. From the perspective of long-term use, the stable filter element installation method reduces the risk of filter media wear and leakage caused by frequent shaking or displacement of the filter element, extends the service life of the filter element, and reduces the frequency and cost of filter element replacement for users. Meanwhile, the stable filtration process ensures the stability of the purified water quality, providing a solid foundation for the stable operation of the subsequent water circuit board 60 and the entire integrated water purifier and heater 1. This reduces potential damage to other components of the equipment caused by water quality fluctuations, lowers the overall maintenance rate and cost, and improves the durability and performance stability of the equipment. Furthermore, the filter support 123 has a clearance hole at the end opposite to the mounting cavity 1231 of the mounting port 1232. This clearance hole allows the filter element to connect with the water circuit board 60, optimizing the connection structure between the filter element and the water circuit board 60. Compared to complex or indirect connection methods, this reduces potential points of failure such as loose connections and leaks, resulting in a tighter and more stable connection between the filter element and the water circuit board 60.

[0078] It should be noted that when the filtration system 50 includes a primary filter element 51 and a secondary filter element 52, the two corresponding mounting cavities 1231 on the filter support 123 further optimize the installation and management of the filter elements. This design allows filter elements with different functions to be installed and operate in their own independent and suitable spaces, avoiding potential mutual interference and influence between different filter elements, ensuring that each filter element can fully exert its due filtration efficiency, and improving the filtration accuracy and efficiency of the entire filtration system 50.

[0079] Furthermore, the water circuit board support 122 includes a base 1221 and a limiting plate 1222. The base 1221 is connected to the mounting surface, and the limiting plate 1222 is connected to the side of the base 1221 facing away from the mounting surface. The water circuit board 60 is detachably connected to the base 1221, and the surface of the water circuit board 60 facing the hot tank assembly 20 abuts against the limiting plate 1222. The detachable connection of the water circuit board 60 to the base 1221 greatly optimizes the equipment maintenance and repair process. When the water circuit board 60 becomes clogged, leaks, or experiences other malfunctions, maintenance personnel can quickly and easily remove it from the base 1221 for targeted inspection, cleaning, or component replacement without the need for complex disassembly of the entire equipment. This significantly shortens maintenance time and reduces downtime. Secondly, the presence of the limiting plate 1222 precisely controls the safe distance between the water circuit board 60 and the hot water tank assembly 20, preventing the water circuit board 60 from getting too close to the hot water tank assembly 20 after installation due to various factors. The effective constraint of the water circuit board 60 position by the limiting plate 1222 ensures that the room temperature water maintains a stable and suitable temperature in the water circuit, allowing the various physicochemical properties of the water to remain at normal levels. This ensures that subsequent filtration and purification processes can proceed according to the expected standards and effects, improving the quality and stability of the purified water.

[0080] Reference Figure 3 and Figure 4 Optionally, the middle shell 12 also includes a support member 126, which is connected to the filter support 123 and the enclosure 124. The integrated heat and water purifier 1 also includes a control board 80, which is fixed to the side of the support member 126 away from the mounting surface and is electrically connected to the heat tank assembly 20. From the perspective of the overall layout and stability of the equipment, the support member 126, as a key component connecting the filter support 123 and the enclosure 124, enhances the integrity and rigidity of the internal structure of the middle shell 12. It can effectively distribute and bear various stresses generated during equipment operation. Whether the force is caused by water flow impact, thermal expansion and contraction, or external vibration, it can be reasonably distributed and buffered through the support member 126, thereby ensuring the relative position of the filter support 123, the enclosure 124, and other internal components remains stable.

[0081] Regarding the operating environment and safety of the control board 80, fixing it to the side of the support member 126 away from the mounting surface and electrically connecting it to the hot water tank assembly 20 offers significant advantages. Firstly, this location is away from potential water sources and humid environments, reducing the risk of short circuits, damage, or malfunction of the control board 80 due to moisture corrosion. This ensures the stable and reliable electrical performance of the control board 80, guaranteeing its accurate monitoring and control of the heating process, temperature regulation, and other related functions of the hot water tank assembly 20. Secondly, the close electrical connection with the hot water tank assembly 20 allows the control board 80 to obtain real-time and accurate information about the working status of the hot water tank assembly 20, making timely adjustments and feedback. This optimizes the heating efficiency and energy utilization of the hot water tank assembly 20, preventing overheating or underheating, ensuring users can always obtain hot water at a suitable temperature while saving energy consumption. From the perspective of equipment maintenance and upgrade convenience, this structural design provides great convenience for subsequent operations. When the control panel 80 needs to be inspected, repaired, or upgraded, maintenance personnel can reach the position of the control panel 80 on the support member 126 relatively easily through a reasonable disassembly path, without having to perform large-scale disassembly and complex operations on the entire equipment, saving maintenance time and labor costs, and improving the maintainability and upgradeability of the equipment.

[0082] Furthermore, the integrated water purifier and heating unit 1 also includes a leak probe 90A, which is connected to the support member 126 and abuts against the bottom surface of the outer casing 10A in the height direction. In terms of the accuracy and timeliness of leak detection, the leak probe 90A's position allows for efficient monitoring of potential leaks at the bottom of the integrated water purifier and heating unit 1. Since water tends to accumulate at the bottom of the device due to gravity, the leak probe 90A, directly abutting the bottom surface of the outer casing 10A, can quickly detect even the slightest leak and transmit the signal to the control system, triggering corresponding alarm mechanisms or taking emergency protective measures, such as cutting off the power or stopping the water circuit. This accurate and rapid leak detection capability greatly reduces the risk of short circuits, electrical failures, and damage to the surrounding environment caused by undetected leaks in the integrated water purifier and heating unit 1, effectively protecting the internal precision components of the integrated water purifier and heating unit 1 and the user's safety.

[0083] The following is in conjunction with the appendix Figure 8 To be continued Figure 14 A detailed description of the hot water system is provided.

[0084] Please see Figure 8The hot water system includes a hot water tank assembly 20, a water pump assembly, a hot water pipe 201, a return pipe 202, and a flow control device. The hot water tank assembly 20 includes a tank body 21 and a heating element 22. The tank body 21 has a heating chamber 21a, and the heating element 22 is installed in the heating chamber 21a. The tank body 21 has an outlet 216 and an inlet that connect to the heating chamber 21a. The inlet end of the hot water pipe 201 is connected to the outlet 216. The water pump assembly is installed on the hot water pipe 201 and is used to pump water from the tank body 21 to the outlet end of the hot water pipe 201 through the outlet 216. The return pipe 202 connects the hot water pipe 201 and the inlet, and the return pipe 202 is located downstream of the hot water pipe 201 and the water pump 30. The flow control device is used to adjust the water flow rate of the return pipe 202.

[0085] Specifically, during the pumping process, the air pressure in the heating chamber 21a inside the tank 21 tends to decrease. In a low-pressure environment, gas expands and flows more easily, making it easier for gas in the pipes to be drawn into the pump 30, thus increasing the risk of air blockage in the pump 30 and affecting its pumping efficiency and stability. This application can alleviate the pressure drop inside the tank 21 to some extent through the return pipe 202. Furthermore, this application is equipped with a flow control device to regulate the water flow rate in the return pipe 202. The flow control device ensures that the water flow rate in the return pipe 202 remains at a suitable level, effectively balancing the pressure and preventing excessively low flow at the outlet of the hot water pipe 201, thereby ensuring both system stability and a sufficient supply of hot water. For example, when the hot water system starts up or the load suddenly increases, the flow control device is used to ensure that the return pipe 202 provides a larger flow rate to balance the system pressure. When the hot water system is operating stably and the load changes little, the return pipe 202 can be controlled to maintain the balance of the hot water system with a small flow rate by controlling the flow control device.

[0086] Optional, please refer to Figure 8The flow control element is a flow restrictor 2031. The flow restrictor 2031 may include a diaphragm with multiple water passage holes. The diameter of these holes is relatively small. When the negative pressure in the pipeline is high, water in the hot water pipe 201 can flow towards the inlet through the water passage holes of the flow restrictor 2031. After the negative pressure in the pipeline stabilizes, the flow restrictor 2031 can prevent most of the hot water in the pipeline from flowing towards the inlet. The flow restrictor 2031 contains a diaphragm with a certain degree of elasticity and sealing. The diaphragm has multiple water passage holes with relatively small diameters to limit the fluid flow velocity. When a large negative pressure occurs in the pipeline, the diaphragm will deform under the suction force of the negative pressure. Due to the small diameter of the water passage holes, the deformation of the diaphragm allows some water in the hot water pipe 201 to flow towards the inlet through these small holes, thereby alleviating the negative pressure state of the pipeline to a certain extent. Understandably, since the hot water pipe 201 is connected to the tank 21, the pressure drop in the heating chamber 21a inside the tank 21 can be alleviated to some extent. Once the negative pressure in the pipe gradually stabilizes, the diaphragm gradually returns to its original state under the combined action of its own elasticity and the pressure inside the pipe. At this point, the water passage holes on the diaphragm will be partially or completely closed, thus preventing most of the hot water in the pipe from continuing to flow to the inlet, ensuring the water flow at the outlet of the hot water pipe 201.

[0087] Optional, please refer to Figure 9 The flow control component is a reversing valve 2032, which is located at the connection between the inlet of the return pipe 202 and the hot water pipe 201. It selectively directs the water in the tank 21 to either the return pipe 202 or the outlet of the hot water pipe 201. The reversing valve 2032 can flexibly adjust the water flow direction according to the pressure in the pipes. When the system pressure is balanced, more water can be directed to the hot water pipe 201 to meet the user's hot water needs; conversely, when the system pressure is too high or pressure needs to be balanced, some water can be directed to the return pipe 202 to maintain system stability. Through the regulation of the reversing valve 2032, the pressure between the hot water pipe 201 and the return pipe 202 can be effectively balanced.

[0088] Optional, please refer to Figure 10 The flow control components include a first solenoid valve 2033 and a second solenoid valve 2034. The first solenoid valve 2033 can be selectively connected to the outlet and inlet of the water pump assembly; the second solenoid valve 2034 can be selectively connected to the outlet of the water pump assembly and the outlet of the hot water pipe 201. By independently controlling the opening and closing of the hot water pipe 201 and the return pipe 202 through the two solenoid valves, the hot water system can flexibly switch the water flow path. When the pressure in the pipe is relatively stable, the second solenoid valve 2034 can be opened; while when the negative pressure in the pipe is large, the first solenoid valve 2033 can be opened, allowing the water to flow back to the inlet.

[0089] Please see Figures 8 to 10 In some embodiments, the hot water system further includes a water supply pipe 204 and an exhaust pipe 205. The water supply pipe 204 connects to the tank 21 and is connected to the water inlet 214 at the top of the tank 21. The exhaust pipe 205 connects the inside and outside of the tank 21 and is connected to the exhaust port 215 at the top of the tank 21. The water supply pipe 204 can replenish water to the tank 21 in a timely manner, avoiding a decrease in heating efficiency or damage to the heating element 22 due to insufficient water. The exhaust pipe 205 can discharge gases, including water vapor and air, from the tank 21, ensuring stable air pressure in the heating chamber 21a. Understandably, during the heating process, a large amount of water vapor is generated due to the increase in water temperature. If it is not discharged in time, it will cause the pressure inside the tank to rise, affecting heating efficiency and equipment safety.

[0090] The return pipe 202 connects the hot water pipe 201 and the vent pipe 205, meaning the outlet of the return pipe 202 is connected to the vent pipe 205. This eliminates the need for multiple holes in the tank 21 to connect the vent pipe and return pipe separately, simplifying the tank 21's structure, reducing manufacturing costs, and minimizing sealing and leakage problems that might arise from openings. Furthermore, the return pipe 202 and the vent pipe 205 can share a portion of the piping; that is, the hot water outlet pipe and vent pipe can be connected simply by adding a return pipe to the existing structure.

[0091] To further improve the pumping efficiency of the water pump assembly, please refer to [link / reference needed]. Figures 12 to 14 The water pump assembly includes a water pump 30 and an inlet pipe 32. The water pump 30 is connected to the outlet 216 via the inlet pipe 32. The inlet pipe 32 is connected to the outlet 216, and at least the portion of the inlet pipe 32 near the outlet 216 extends upwards, with its inner diameter decreasing from top to bottom. Specifically, the portion of the inlet pipe 32 near the outlet 216 extends upwards, with its inner diameter decreasing from top to bottom. It should be noted that part of the diameter of the inlet pipe 32 can be reduced, while part of the diameter can remain unchanged.

[0092] Specifically, the outlet 216 is located at the lower part of the tank 21, and the inlet pipe 32 is connected to the outlet 216. Air bubbles in the water rise vertically, thus reducing the possibility of air bubbles being drawn into the pump 30 during operation and lowering the risk of air blockage. Furthermore, the portion of the inlet pipe 32 closest to the outlet 216 extends upwards, and its inner diameter decreases from top to bottom, ensuring that air bubbles rise unimpeded under lift until they are discharged from the inlet pipe 32. This effectively reduces the possibility of air bubble accumulation in the pipe, significantly lowering the risk of pump 30 failure due to air blockage. Understandably, air blockage not only reduces pumping efficiency but can also damage the pump 30, such as causing overheating and increased wear. This application designs the inner diameter of the inlet pipe 32 in a structure that not only does not add extra complexity during actual production and installation but also has lower processing costs, while effectively reducing the risk of air blockage.

[0093] Please see Figure 14 In some embodiments, the water inlet pipe 32 includes a first pipe section 321, a second pipe section 323 and an arc-shaped transition section 322. The first pipe section 321 is connected to the water outlet 216 and extends upward, and the inner diameter of the first pipe section 321 decreases from top to bottom. One end of the second pipe segment 323 is connected to the end of the arc-shaped transition segment 322 away from the first pipe segment 321, and the other end of the second pipe segment 323 is connected to the water pump 30. The opposite sides of the arc-shaped transition segment 322 are respectively connected to the first pipe segment 321 and the second pipe segment 323. The centerline of the arc-shaped transition segment 322 is arc-shaped, and the centerline of the second pipe segment 323 is at an angle to the centerline of the first pipe segment 321. The centerline of the first pipe segment 321 can extend vertically or be at an angle to the vertical direction, that is, the first pipe segment 321 is slightly inclined. For example, the angle between the centerline of the first pipe segment 321 and the vertical direction is 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. The centerline of the second pipe segment 323 can extend horizontally or be at an angle to the horizontal direction.

[0094] Specifically, to adapt to the installation environment or space, the water pump 30 needs to be placed horizontally or slightly tilted. In this case, the inlet pipe 32 may also include an arc-shaped transition section 322 and a second pipe section 323. The centerline of the second pipe section 323 is set at an angle to the centerline of the first pipe section 321. The arc-shaped transition section 322 is designed to allow for a smooth transition of water flow between the two pipe sections. In the direction of water flow, the inner diameter of the arc-shaped transition section 322 is reduced. That is, the inner diameter of the arc-shaped transition section 322 is reduced in the direction of the outlet 216 near the water pump 30. This creates a guiding surface on the inner surface of the arc-shaped transition section 322, allowing air bubbles to rise along its inner surface, reducing the risk of air blockage. The water pump inlet 351, which connects the water pump 30 to the second pipe section 323, is oriented horizontally or tilted upwards. In other words, the water pump inlet 351 will not face downwards, reducing the risk of air bubbles entering the water pump 30 at the inlet 351.

[0095] In some embodiments, the inlet pipe 32 can be a straight pipe, that is, the inlet pipe 32 may only include the first pipe section 321. The straight pipe can extend vertically, so that the air bubbles inside the straight pipe will not encounter resistance during their ascent. Of course, the straight pipe can also be slightly inclined, for example, the angle between the straight pipe and the vertical direction is 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. Under the action of buoyancy, the air bubbles will float back into the hot tank along the wall of the straight pipe, which can reduce or avoid the probability of air bubbles entering the water pump 30, thereby reducing the flow rate of the water pump 2.

[0096] Please see Figure 14 In some embodiments, the water pump 30 includes a water inlet 35 extending outward from the main body of the water pump 30 and having a water pump inlet 351. The water inlet 35 extends into the interior of the second pipe section 323, and the water pump inlet 351 on the water inlet 35 is located at the corner between the arcuate transition section 322 and the second pipe section 323. Thus, the water pump inlet 351 can be as close as possible to the first pipe section 321. Understandably, to accommodate the installation space within the housing, some water pumps 30 need to be placed relatively horizontally or slightly tilted. There are no obstructions above the air bubbles in the first pipe section 321 and the arcuate transition section 322, allowing them to rise directly. Inserting the water inlet 35 into the second pipe section 323 prevents gas accumulation within the second pipe section 323, reducing the risk of air blockage. Optionally, the first pipe section 321 extends vertically, and the centerline of the first pipe section 321 is perpendicular to the centerline of the second pipe section 323. This allows the installation of the water pump 30 to be placed horizontally.

[0097] Please see Figure 14In some embodiments, the water pump 30 includes a water inlet 35 extending outward from the main body of the water pump 30 and having a water pump inlet 351. The water inlet 35 extends into the interior of the second pipe section 323, and the water pump inlet 351 on the water inlet 35 is located at the corner between the arc-shaped transition section 322 and the second pipe section 323, where air bubbles are more likely to rise. Thus, the water pump inlet 351 can be as close as possible to the first pipe section 321 and the arc-shaped transition section 322. Understandably, to accommodate the installation space within the housing, some water pumps 30 need to be placed relatively horizontally or slightly tilted. Air bubbles in the first pipe section 321 and the arc-shaped transition section 322 have no obstruction above them and can rise directly. Inserting the water inlet 35 into the second pipe section 323 can prevent gas from accumulating inside the second pipe section 323, reducing the risk of air blockage.

[0098] Optionally, the first pipe segment 321 extends vertically, and the centerline of the first pipe segment 321 is perpendicular to the centerline of the second pipe segment 323. This accommodates the installation requirement of the water pump 30 being installed horizontally.

[0099] Please see Figure 14 Optionally, the inner diameter of the water inlet 35 is reduced in the direction of the outlet 216 near the water pump 30. This allows the inner diameter of the water inlet 35 to form a guide surface that gradually slopes upward from the inside of the water inlet 35 to the outside, preventing air bubbles from accumulating inside the water inlet 35.

[0100] Please see Figure 14 In some embodiments, the tank body 211, the top cover 212, and the bottom cover 213 are provided. The tank body 211 has a cylindrical structure, the top cover 212 is located at the top of the tank body 211, and the bottom cover 213 is located at the bottom of the tank body 211. The three components work together to form a heating chamber 21a. The top cover 213 is provided with an inlet connected to the aforementioned water supply pipe 204, an inlet connected to the return pipe 202, and an exhaust port connected to the exhaust pipe 205. The bottom cover 213 is provided with an outlet 216. The hot tank assembly 20 also includes a connecting water pipe 218, which is connected to the bottom cover 213 and connected to the outlet 216. The connecting water pipe 218 extends vertically, and the drain end of the connecting water pipe 218 is connected to the first pipe section 321. By connecting the water pipe 218 to the outlet 216 of the tank bottom cover 213 and extending it vertically upwards to finally connect to the first pipe section 321, the connection process between the water inlet pipe 32 and the tank body 21 is simplified. Moreover, the outlet 216 is directly set on the tank bottom cover 213, which makes processing and assembly operations easier compared to opening the outlet 216 on the side or top of the tank body 21.

[0101] Please see Figure 13 and Figure 14 In some embodiments, the connecting water pipe 218 extends into the tank body 21, and in the height direction, the water inlet of the connecting water pipe 218 is higher than the tank bottom cover 213. In this example, the water outlet 216 provided on the tank bottom cover 213 is in the form of an installation port 1232. The opening of the connecting water pipe 218 extending into the heating chamber 21a inside the tank body 21 is the water outlet 216 of the hot tank assembly 20. Since the water inlet of the connecting water pipe 218 is higher than the tank bottom cover 213, the heating element 22 is generally located in the middle of the tank body 21, and the tank bottom cover 213 is far away from the heating element 22. This can easily cause water temperature stratification, that is, the water temperature near the tank bottom cover 213 will be relatively lower. In this application, the water inlet of the connecting water pipe 218 is higher than the tank bottom cover 213, so that the water inlet of the connecting water pipe 218 is relatively closer to the heating element 22, thereby enabling the direct acquisition of water with a higher temperature that is more affected by the heating element 22. In this way, even if the water temperature near the bottom cover 213 is relatively low, it will not affect the temperature of the water taken out through the connecting water pipe 218.

[0102] Please see Figure 13 In some embodiments, the height difference between the water inlet of the water pipe 218 and the bottom cover 213 is H, where H satisfies 5mm ≤ H ≤ 10mm. This allows the water inlet 216 to be closer to the heating element 22, resulting in higher water temperature drawn by the water pump 30, thus increasing the temperature of the first cup of water taken by the user. Furthermore, it allows the user to take as much hot water as possible from the heating chamber 21a, improving the utilization rate of the hot water in the heating chamber 21a.

[0103] If H < 5mm, the water inlet of the water pipe 218 will be far from the heating element 22, resulting in a lower temperature of the water pumped by the water pump 30, and thus a lower temperature of the first cup of water taken by the user.

[0104] If H > 10mm, the inlet of the water pipe 218 will be too high, resulting in a lot of hot water remaining in the lower part of the heating chamber 21a after the user has taken all the hot water from the upper part of the tank 21. This leads to a low utilization rate of the hot water in the heating chamber 21a and a waste of resources.

[0105] Please see Figure 13 Furthermore, in the vertical direction, the heating element 22 is located at the lower part of the tank body 21 and is positioned near the bottom cover 213; wherein, the heating element 22 is arranged around the outer periphery of the water inlet end of the connecting water pipe 218. The heating element 22, located at the lower part of the tank body 21 and near the bottom cover 213, can directly heat the bottom of the water inside the tank body 21. Since heat is typically transferred from bottom to top, this arrangement can more effectively increase the overall water temperature while ensuring uniform heating of the water.

[0106] Furthermore, in some embodiments, the integrated water purifier and heater 1 also includes a controller, a first temperature sensor, and a second temperature sensor. The filtration system 50 includes a purified water pipe connecting to the outlet of the filter element. Both the purified water pipe and the outlet pipe connecting to the outlet 216 of the tank 21 are connected to the faucet 2. The first temperature sensor is used to detect the temperature inside the heating chamber 21a, and the second temperature sensor is used to detect the temperature in the pure water pipeline within the filtration system 50. The controller receives the detection values ​​from the first and second temperature sensors and controls the operating power of the water pump 30 and the booster pump 53 to produce water at a set temperature at the faucet 2. Through the coordinated operation of the first and second temperature sensors, the controller can accurately adjust the water temperature inside the heating chamber 21a and the mixing ratio of hot and cold water, ensuring the stability and accuracy of the water temperature at the faucet 2, avoiding problems of excessively high or low water temperatures, and improving the safety and comfort of use. In addition, the controller dynamically adjusts the operating power of the water pump 30 and the booster pump 5, optimizing energy consumption according to actual water demand, reducing unnecessary energy waste, and thus improving the system's energy efficiency and economy.

[0107] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0108] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot water system, characterised in that, The application relates to a water heating device. The water heating device comprises: a heating tank assembly, comprising a tank body and a heating element, the heating element being installed on the tank body, the tank body having a water outlet and a water inlet; a hot water pipeline connected to the water outlet; an exhaust pipeline connected to the inside and outside of the tank body; a water pump assembly arranged on the hot water pipeline and used for pumping water in the tank body to the water outlet end of the hot water pipeline; a return pipeline connected to the hot water pipeline and the exhaust pipeline, the return pipeline being connected to the hot water pipeline at a position downstream of the water pump assembly; and a flow control element used for adjusting the water flow of the return pipeline.

2. The hot water system of claim 1, wherein, The flow control element is a flow limiting plug.

3. The hot water system of claim 1, wherein, The flow control element is a reversing valve arranged at the connection between the water inlet end of the return pipeline and the water outlet end of the hot water pipeline and used for selectively guiding the water in the tank body to the return pipeline or the water outlet end of the hot water pipeline.

4. The hot water system of claim 1, wherein The flow control element comprises: a first electromagnetic valve selectively connected to the water outlet end of the water pump assembly and the water inlet; and a second electromagnetic valve selectively connected to the water outlet end of the water pump assembly and the water outlet end of the hot water pipeline.

5. The hot water system of claim 1, wherein, The water heating device further comprises: an exhaust pipeline connected to the inside and outside of the tank body and arranged at the top of the tank body.

6. A hot water system as claimed in any one of claims 1 to 5 wherein, The water pump assembly comprises a water pump and a water inlet pipeline, the water pump being connected to the water outlet through the water inlet pipeline; wherein the water inlet pipeline is connected to the water outlet, at least a part of the water inlet pipeline close to the water outlet extends upwards, and the inner diameter of the water inlet pipeline gradually decreases from top to bottom.

7. The hot water system of claim 6, wherein The water inlet pipeline comprises: a first pipeline section connected to the water outlet and having an inner diameter gradually decreasing from top to bottom; an arc-shaped transition section connected to one end of the first pipeline section away from the water outlet; and a second pipeline section connected to one end of the arc-shaped transition section away from the first pipeline section, the other end of the second pipeline section being connected to the water pump; wherein the center line of the second pipeline section is arranged at an angle with the center line of the first pipeline section, and the water pump has a water pump inlet connected to the second pipeline section, the water pump inlet being horizontally or obliquely upwardly directed.

8. The hot water system of claim 7, wherein, The inner diameter of the arc-shaped transition section gradually decreases in the direction from the water outlet to the water pump.

9. The hot water system of claim 7, wherein, The water pump comprises: a water inlet part having the water pump inlet, the water inlet part extending outwards from the main body of the water pump, the water inlet part extending into the inside of the second pipeline section, and the water pump inlet on the water inlet part being located at the corner between the arc-shaped transition section and the second pipeline section.

10. The hot water system of claim 9, wherein, The inner diameter of the water inlet part gradually decreases in the direction from the water outlet to the water pump.

11. The hot water system of claim 7, wherein, The first pipeline section extends in the vertical direction, and the center line of the first pipeline section is arranged perpendicularly to the center line of the second pipeline section.

12. A hot water system as claimed in any one of claims 7 to 11, wherein, The tank body comprises a tank bottom cover provided with the water outlet, and the heating tank assembly further comprises: a connecting water pipeline connected to the tank bottom cover and connected to the water outlet, the connecting water pipeline extending in the vertical direction, and the water discharge end of the connecting water pipeline being connected to the first pipeline section.

13. The hot water system of claim 12, wherein, The connecting water pipe extends into the tank body, and in the height direction, the water inlet end of the connecting water pipe is higher than the tank bottom cover.

14. A heat recovery all-in-one machine, characterized by, Comprise: a housing assembly; the hot water system as claimed in any one of claims 1 to 13, installed in the housing assembly; and a filter system installed in the housing assembly, the filter system being in communication with the hot water system. The heat purification integrated machine further comprises a controller, a first temperature sensor, a second temperature sensor, and a faucet, the filter system comprises a booster pump, a filter element, and a purified water pipe connected to the outlet of the filter element, the purified water pipe and the water outlet pipe in communication with the water outlet are both connected to the faucet; 15. The instant hot water integrated machine as claimed in claim 14, wherein, wherein the first temperature sensor is used to detect the temperature in the tank body, the second temperature sensor is used to detect the temperature of the purified water in the purified water pipe, the controller is used to receive the detection values of the first temperature sensor and the second temperature sensor, and control the operating power of the water pump assembly and the booster pump, so as to form water of a set temperature value at the faucet. ​

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