A combined air purifier and heat pump

Abstract

This application discloses an integrated water purifier and heater, including a filtration unit, a room temperature water tank, a hot water tank, and an instant heating device. The instant heating device is located inside the hot water tank. The filtration unit filters raw water into pure water and delivers it to the room temperature water tank. The hot water tank has a hot water outlet and an exhaust port. The room temperature water tank can replenish water to the hot water tank. The hot water outlet is connected to the instant heating device via a hot water pump. Water in the instant heating device can be delivered to the outside of the integrated water purifier and heater or flow back into the hot water tank, so that the water in the hot water tank can be maintained at a temperature not lower than a preset temperature. Because the instant heating device is located inside the hot water tank, heat is transferred to the instant heating device through the hot water in the tank, avoiding the water inside the instant heating device from exchanging heat with the outside atmosphere and cooling down to room temperature. The water inside the instant heating device is in a constant-temperature state, effectively shortening the preheating waiting time, and the set temperature can be quickly reached in the initial stage of water output.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, specifically to a water purifier and heat purifier integrated machine. Background Technology

[0002] Currently, integrated water purifiers and heat storage units with heating and energy storage functions are quite common in the market. These integrated water purifiers and heat storage units include a filter unit, a hot water tank, and an instant heating device. The pure water filtered by the filter unit can be heated in the instant heating device. Hot water can be directly output from the faucet or stored in the hot water tank to achieve energy storage. Alternatively, a heating structure can be installed in the hot water tank to directly heat the water in the tank to achieve energy storage. The instant heating device can then directly draw hot water from the hot water tank to shorten the heating time.

[0003] In existing solutions, instant water heaters are generally externally installed, for example, fixed to the outside of the water tank or the main support with screws. They need to be placed as far away as possible from the water purifier's water circuit structure to avoid leaks that could cause short circuits in the electronic components. However, this installation method also has some drawbacks: since the hot water in the instant water heater is not always used up, some water often remains. When hot water is not used for a long time, the remaining hot water inside the instant water heater will cool down due to heat exchange with the outside atmosphere, eventually dropping to room temperature. When hot water is dispensed again, the instant water heater heats up slowly at low temperatures. In this case, the water inside the instant water heater needs to be preheated for 2-5 seconds before being dispensed, prolonging the user's waiting time; or low-temperature water can be dispensed directly, with the water temperature gradually increasing during dispensing, resulting in the water temperature being lower than the set dispensing temperature for the first few seconds; or hot water can be dispensed at a low flow rate first, gradually increasing the flow rate as the water temperature rises. It is clear that regardless of the dispensing method, the user experience is reduced. Utility Model Content

[0004] This application provides a water purifier and heat pump integrated machine to improve or solve, to a certain extent, the technical problems in existing water purifier and heat pump integrated machines, such as the hot water temperature dropping significantly when the instant heating device has not been used for a long time, resulting in long reheating time, low outlet water temperature, and low outlet water flow.

[0005] The technical solution adopted in this application is as follows:

[0006] A water purifier and heat dissipation unit includes a filtration unit, a room temperature water tank, a hot water tank, and an instant heating device. The instant heating device is located inside the hot water tank. The filtration unit filters raw water into pure water and delivers it to the room temperature water tank. The hot water tank has a hot water outlet and a vent. The room temperature water tank can replenish water to the hot water tank. The hot water outlet is connected to the instant heating device via a hot water pump. The water in the instant heating device can be delivered to the outside of the water purifier and heat dissipation unit or returned to the hot water tank, so that the water in the hot water tank can be maintained at a temperature not lower than a preset temperature.

[0007] In this technical solution, the integrated water purifier and heater is equipped with a filtration unit, a room-temperature water tank, a hot water tank, and an instant heating device. The filtration unit filters raw water into pure water, which is stored in the room-temperature water tank. The room-temperature water tank can replenish water to the hot water tank. The water in the hot water tank can be heated by the instant heating device and then returned. The hot water outlet is directly connected to the instant heating device via a hot water pump, allowing for immediate extraction of high-temperature water from the hot water tank for external supply or return for heat preservation, eliminating the need for users to wait for preheating. When the water temperature in the hot water tank is lower than the set value and no replenishment is required, the hot water tank, hot water pump, and instant heating device form a circulating heating path. The hot water pump draws water from the hot water tank into the instant heating device for heating, and then returns it to the hot water tank until the water temperature in the hot water tank is heated above the set value, achieving [heating]. Energy storage ensures that the hot water tank always has a suitable temperature of hot water when the instant heating device dispenses water to the tap. Since the instant heating device is located inside the hot water tank, heat is transferred from the hot water in the tank to the device, avoiding the water inside the device from cooling down to room temperature due to heat exchange with the outside atmosphere. The water inside the device is kept at room temperature, effectively shortening the preheating waiting time and allowing the set temperature to be reached quickly at the initial stage of water dispensing. In addition, the instant heating device is directly integrated into the hot water tank, which also achieves a physical fusion of heat storage and instant heating functions. This effectively reduces the space occupied by traditional split-type heat storage and instant heating systems, and also helps to shorten the water replenishment path from the hot water tank to the instant heating device, simplifying the water circuit structure and improving the water replenishment and heating speed.

[0008] The hot water tank is provided with a water inlet channel that runs through both the inside and outside. One end of the water inlet channel inside the hot water tank is connected to the instant heating device. The ambient temperature water tank is connected to the end of the water inlet channel outside the hot water tank through a water replenishment pump, so that the ambient temperature water tank can pre-fill the instant heating device with water, heat it, and then return it to the hot water tank or deliver it to the outside of the integrated water purifier and heat pump.

[0009] In this technical solution, room temperature water in the ambient temperature water tank is injected into the instant heating device through the water inlet channel via a water replenishment pump. After heating, it flows back to the hot water tank, ensuring that the ambient temperature water directly participates in the heating cycle and avoiding a sudden temperature drop caused by the ambient temperature water directly entering the hot water tank. For example, when the water level in the hot water tank is low, the ambient temperature water can directly enter the instant heating device for heating before replenishing the hot water tank, shortening the water replenishment energy storage path and improving energy storage efficiency. Furthermore, when the hot water tank cannot supply water to the instant heating device due to insufficient water level or other reasons (such as a malfunctioning hot water pump), the water replenished from the ambient temperature water tank into the instant heating device can also be directly delivered to the outside of the integrated water purifier and heat pump after heating. The water inlet channel runs through both the inside and outside of the hot water tank, simplifying the pipeline layout and reducing the risk of leakage. Therefore... This solution enables two methods of hot water tank energy storage: First, when the water temperature in the hot water tank is lower than the set value and the water volume is sufficient, the hot water tank, hot water pump, and instant heating device form a circulating heating path. The hot water pump draws water from the hot water tank into the instant heating device for heating, and then the water flows back into the hot water tank until the water temperature in the hot water tank is heated to the set value, thus achieving energy storage. Second, when the water temperature in the hot water tank is lower than the set value but the water volume is low, the water replenishment pump starts, and water from the ambient temperature water tank enters the instant heating device for heating and then flows back into the hot water tank, achieving energy storage. Furthermore, when the hot water tank cannot supply water to the instant heating device, water from the ambient temperature water tank, after being heated, can also be directly supplied to the outside.

[0010] The water inlet channel is located at one end outside the hot water tank and is connected to the hot water pump, so that the hot water pump and the water replenishment pump share the water inlet channel to pump water to the instant heating device. The water replenishment pump and the hot water pump are controlled by the control system to selectively start one of them.

[0011] In this technical solution, the hot water pump and the makeup water pump supply water to the instant heating device through the same inlet channel, reducing redundant pipelines and lowering manufacturing costs; the control system selects to start either the makeup water pump or the hot water pump, with the makeup water pump used to replenish room temperature water and the hot water pump used for circulating heating, avoiding interference between the two water paths, and the control logic is clear and energy-saving.

[0012] The hot water tank is provided with a return port for the return water of the instant heating device. The return port is located at the top of the hot water tank, and the hot water outlet is located at the bottom of the hot water tank.

[0013] In this technical solution, by placing the return port at the top of the hot water tank and the hot water outlet at the bottom, the water temperature stratification characteristics (hot at the top and cold at the bottom) are utilized to preferentially draw low-temperature water from the bottom into the instant heating device for heating, while the high-temperature water returning naturally rises to the top, forming a natural thermal convection circulation. This avoids energy waste caused by repeated heating of high-temperature water. The top return design promotes the vertical circulation of water in the hot water tank and reduces local low-temperature zones caused by temperature stratification.

[0014] The integrated water purifier and heat pump includes a reversing valve, which controls the instant heating device to discharge water to the outside of the integrated water purifier and heat pump or to the return port.

[0015] In this technical solution, the reversing valve controls the water outlet direction of the instant heating device (external water supply or internal return), achieving seamless switching between on-demand water supply and circulating heating modes. The integrated design of the reversing valve reduces external pipeline connections and lowers the risk of leakage. In the external water supply mode, the reversing valve closes the return port to ensure stable water pressure; in the circulating heating mode, the reversing valve closes the external water supply channel, forming a closed circulation path to reduce heat loss.

[0016] The hot water tank is equipped with a water supply temperature detection device, the detection probe of which is located at the hot water outlet; and / or, the instant heating device is equipped with an inlet water temperature detection device, the detection probe of which is located at the inlet of the instant heating device; and / or, the instant heating device is equipped with an outlet water temperature detection device, the detection probe of which is located at the outlet of the instant heating device; and / or, the hot water tank is equipped with a water level detection device for detecting water level.

[0017] In this technical solution, the probe of the water replenishment temperature sensor is located at the hot water outlet. This arrangement helps to accurately monitor the water temperature replenished from the hot water tank to the instant heating device. It can detect whether the water temperature in the hot water tank has reached the preheating temperature during the internal circulation of the instant heating device, hot water pump, and hot water tank, and it can also detect the instant hot water inlet temperature when the instant heating device dispenses water to the faucet. This allows for better adjustment of heating power and / or instant hot water flow rate based on the temperature difference between the instant hot water inlet and outlet to meet the target water temperature. The inlet water temperature sensor provides feedback on the inlet water temperature of the instant heating device, optimizing the heating power distribution. The inlet water temperature sensor and the water replenishment temperature sensor provide dual detection and feedback on the water temperature replenished from the hot water tank to the instant heating device, ensuring data accuracy. The outlet water temperature sensor ensures the accuracy of the external hot water supply and return hot water temperatures. The water level sensor promptly detects and provides feedback on the water level in the hot water tank, preventing excessive or insufficient water and reducing the risk of dry burning. This solution uses multi-level water temperature sensors (makeup water temperature, inlet water temperature, and outlet water temperature) to monitor the temperature of key nodes in real time, combined with water level sensors, to achieve precise temperature control and water level management, avoiding equipment damage caused by overheating, dry burning, or insufficient water level.

[0018] The integrated water purifier and heat pump includes a faucet with a mixing chamber, a room temperature water tank connected to the mixing chamber via a cold water pump, an instant heating device connected to the mixing chamber, and the cold water pump and the hot water pump are controlled by a control system to start one of them or both at the same time.

[0019] In this technical solution, the cold water pump can draw room temperature water from the room temperature water tank into the mixing chamber, and the hot water pump can draw hot water from the hot water tank into the instant heating device and then output it to the mixing chamber. The cold water pump and the hot water pump respectively control the room temperature water tank and the hot water tank to replenish water to the mixing chamber. The cold water pump and the hot water pump can be started selectively or simultaneously, allowing users to choose pure room temperature water, pure hot water, or a mixture of cold and hot water for output. At the same time, the mixing chamber is integrated into the faucet, reducing external pipeline connections and lowering the risk of leakage.

[0020] The filtration unit includes a booster pump and a filter element connected to the booster pump. The filter element is connected to the ambient temperature water tank and the mixing chamber through a water supply valve and a water outlet valve, respectively.

[0021] In this technical solution, the filter element is controlled separately by the water supply valve and the water outlet valve, so that the filtered water can be distributed to the ambient temperature water tank or directly supplied to the mixing chamber as needed, avoiding frequent start-up and shutdown of the filter unit; in addition, when the water outlet valve is open and the cold water pump is working, the filter element and the ambient temperature water tank can be used together to deliver ambient temperature water to the mixing chamber, so as to achieve a large flow of ambient temperature water supply.

[0022] The instant heating device includes a housing and a heating element and a temperature control unit disposed within the housing. The housing is fixedly connected to the hot water tank. A temperature control tube is provided inside the housing, and the temperature control unit is disposed inside the temperature control tube. The temperature control tube isolates the water in the instant heating device from the temperature control unit.

[0023] In this technical solution, by embedding the temperature control unit within the temperature control tube, physical isolation between the temperature control electronic components and the water circuit is achieved, improving upon the traditional solution of externally placed temperature control units in instant heating devices. On the one hand, the temperature control unit embedded within the instant heating device can monitor the water temperature in the core heating zone in real time, significantly improving the temperature feedback response speed. On the other hand, the embedding of the temperature control unit within the temperature control tube provides a reliable structural foundation for the instant heating device to operate within the hot water tank without the temperature control electronic components being affected by water vapor.

[0024] The heating element has a terminal end that extends outside the hot water tank. The temperature control tube has an installation port that extends outside the hot water tank. The temperature control unit is inserted into or removed from the temperature control tube through the installation port.

[0025] In this technical solution, the external wiring terminal design of the heating element avoids damage to the electrical connection caused by the high-temperature water environment, thus improving safety. The installation port design of the temperature control tube allows the temperature control unit to be easily disassembled and replaced without damaging the overall sealing structure. The temperature control unit can be inspected and maintained through the installation port while the instant heating device and the hot water tank are fully assembled, significantly reducing maintenance costs. In addition, the wires connected to the temperature control unit can also extend through the installation port.

[0026] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows: The integrated water purifier and heater is equipped with a filtration unit, a room temperature water tank, a hot water tank, and an instant heating device. The filtration unit can filter the raw water into pure water and store it in the room temperature water tank. The room temperature water tank can replenish water to the hot water tank. The water in the hot water tank can be heated by the instant heating device and then returned. The hot water outlet is directly connected to the instant heating device through a hot water pump, which can immediately draw high-temperature water for external supply or return for heat preservation, so that users do not need to wait for preheating. When the water temperature in the hot water tank is lower than the set value, the hot water tank, the hot water pump, and the instant heating device form a circulating heating path. The hot water pump draws water from the hot water tank into the instant heating device for heating, and then returns it to the hot water tank until the water temperature in the hot water tank is heated to the set value. This design achieves energy storage and ensures that the hot water tank always has a suitable temperature of hot water available when the instant heating device dispenses water to the tap. Since the instant heating device is located inside the hot water tank, heat is transferred from the hot water in the tank to the device, avoiding the water inside the device from cooling down to room temperature due to heat exchange with the outside atmosphere. The water inside the device remains at a constant temperature, effectively shortening the preheating waiting time and allowing the set temperature to be reached quickly from the initial water dispensing stage. In addition, the instant heating device is directly integrated into the hot water tank, achieving a physical fusion of heat storage and instant heating functions. This effectively reduces the space occupied by traditional split-type heat storage and instant heating systems, and also helps to shorten the water replenishment path from the hot water tank to the instant heating device, simplifying the water circuit structure and improving the water replenishment and heating speed. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a water circuit diagram of the integrated water purifier and heat pump provided in the embodiments of this application;

[0029] Figure 2 Assembly of the hot water tank and instant heating device provided in the embodiments of this application Figure 1 ;

[0030] Figure 3 Assembly of the hot water tank and instant heating device provided in the embodiments of this application Figure 2 ;

[0031] Figure 4 This is a cross-sectional view of the assembly formed by the hot water tank and instant heating device provided in the embodiments of this application.

[0032] List of components and reference numerals:

[0033] 10. Room temperature water tank; 11. Hot water tank; 111. Hot water outlet; 112. Exhaust port; 113. Return port; 12. Instant heating device; 121. Housing; 122. Heating element; 123. Temperature control unit; 124. Temperature control tube; 125. Terminal block; 126. Mounting port; 127. Inlet pipe; 13. Hot water pump; 14. Booster pump; 15. Filter element; 16. Inlet solenoid valve; 17. Wastewater solenoid valve; 18. Makeup valve; 19. Inlet channel; 20. Makeup pump; 21. Reversing valve; 22. Makeup water temperature sensor; 23. Inlet water temperature sensor; 24. Outlet water temperature sensor; 25. Water level sensor; 26. Faucet; 27. Cold water pump; 28. Outlet valve. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0036] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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, they should not be construed as limitations on this application.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0039] In the embodiments of this application, an integrated air purifier and heat pump is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0040] Reference Figures 1 to 4 As shown, the integrated water purifier and heat pump provided in this application includes a filtration unit, a room temperature water tank 10, a hot water tank 11, and an instant heating device 12. The instant heating device 12 is located inside the hot water tank 11. The filtration unit is used to filter the raw water into pure water and deliver it to the room temperature water tank 10. The hot water tank 11 is provided with a hot water outlet 111 and an exhaust port 112. The room temperature water tank 10 can replenish water into the hot water tank 11. The hot water outlet 111 is connected to the instant heating device 12 through a hot water pump 13. The water in the instant heating device 12 can be delivered to the outside of the integrated water purifier and heat pump or flow back into the hot water tank 11 so that the water in the hot water tank 11 can be maintained at a temperature not lower than the preset temperature.

[0041] In this technical solution, the integrated water purifier and heater includes a filtration unit, a room temperature water tank 10, a hot water tank 11, and an instant heating device 12. The filtration unit filters raw water into pure water, which is stored in the room temperature water tank 10. The room temperature water tank 10 can replenish water to the hot water tank 11. In a preferred embodiment, the filtration unit includes a booster pump 14 and a filter element 15 connected to the booster pump 14. The type and water volume of the filter element 15 are not specifically limited. Figure 1The illustration shows an embodiment with two filter elements 15 connected in series, enabling multi-stage filtration and improving filtration efficiency. Furthermore, the integrated water purifier and heat pump also includes an inlet solenoid valve 16 and a wastewater solenoid valve 17. When the inlet solenoid valve 16 is open, the booster pump 14 can pressurize and pump water from an external water source (such as tap water) into the filter element 15 for filtration. When the wastewater solenoid valve 17 is open, the wastewater produced by the filter element 15 can be discharged to the outside of the equipment through the wastewater solenoid valve 17. The filter element 15 is connected to a normal temperature water tank 10 via a water supply valve 18. When the water supply valve 18 is open, the pure water produced by the filter element 15 can be added to the normal temperature water tank 10.

[0042] Water in the hot water tank 11 can be heated by the instant heating device 12 and then returned. The hot water outlet 111 is directly connected to the instant heating device 12 via the hot water pump 13. The hot water pump 13 can instantly draw high-temperature water from the hot water tank 11 and supply it externally or return it for heat preservation through the instant heating device 12, so users do not need to wait for preheating. When the water temperature in the hot water tank 11 is lower than the set value, the hot water tank 11, the hot water pump 13, and the instant heating device 12 form a circulating heating path. The hot water pump 13 draws water from the hot water tank 11 into the instant heating device 12 for heating, and then returns it to the hot water tank 11 until the water temperature in the hot water tank 11 is heated to above the set value, thus achieving energy storage and ensuring that the hot water tank 11 always has a suitable temperature of hot water when the instant heating device 12 dispenses water to the faucet 26.

[0043] Since the instant heating device 12 is located inside the hot water tank 11, heat is transferred from the hot water in the tank 11 to the device 12, preventing the water inside the device 12 from cooling down to room temperature due to heat exchange with the outside atmosphere. The water inside the device 12 remains at a constant temperature, effectively shortening the preheating time and allowing the set temperature to be reached quickly from the initial water output stage. Furthermore, the direct integration of the instant heating device 12 into the hot water tank 11 achieves a physical fusion of heat storage and instant heating functions, effectively reducing the space occupied by traditional separate heat storage and instant heating systems. It also helps to shorten the water supply path from the hot water tank 11 to the device 12, simplifying the water circuit structure and improving the water supply and heating speed. In a preferred embodiment, the casing 121 of the instant heating device can be made of stainless steel, which combines strength and thermal conductivity.

[0044] In one specific implementation, the ambient temperature water tank 10 can directly replenish the hot water tank 11. After filling the hot water tank 11, the hot water tank 11 is then heated and refluxed through the instant heating device 12 until the water temperature in the hot water tank 11 reaches the preset temperature. As a preferred embodiment of this application, the ambient temperature water tank 10 can also indirectly replenish the hot water tank 11, such as... Figure 1As shown, the hot water tank 11 is provided with a water inlet channel 19 that runs through both the inside and outside. One end of the water inlet channel 19 inside the hot water tank 11 is connected to the instant heating device 12. The ambient temperature water tank 10 is connected to the end of the water inlet channel 19 outside the hot water tank 11 through a water replenishment pump 20, so that the ambient temperature water tank 10 can pre-fill the instant heating device 12 with water, heat it, and then return it to the hot water tank 11 or deliver it to the outside of the water purifier and heat pump. In this design, when the ambient temperature water tank 10 supplies water to the hot water tank 11, the water does not directly enter the hot water tank 11. The ambient temperature water is directly injected into the instant heating device 12 via the water supply pump 20 and the water inlet channel 19. The instant heating device 12 heats the water to a preset temperature and then returns it to the hot water tank 11, ensuring that the ambient temperature water directly participates in the heating cycle and avoiding a sudden drop in temperature caused by the ambient temperature water directly entering the hot water tank 11. For example, when the water volume in the hot water tank 11 is low, the ambient temperature water can directly enter the instant heating device 12 for heating before being added to the hot water tank 11, shortening the water supply energy storage path and improving energy storage efficiency. Furthermore, when the hot water tank 12 cannot supply water to the instant heating device 12 due to insufficient water volume in the hot water tank 11 or other reasons (such as a malfunction of the hot water pump 13), the water added to the instant heating device 12 from the ambient temperature water tank 10 can also be directly delivered to the outside of the integrated water purifier and heat pump after heating. The water inlet channel 19 runs through both the inside and outside of the hot water tank 11, simplifying the pipeline layout and reducing the risk of leakage. Specifically, for example... Figure 3 and Figure 4 As shown, a water inlet pipe 127 can be installed at the bottom of the instant heating device, and a water inlet channel 19 is formed inside the water inlet pipe 127. The water inlet pipe 127 passes through the wall of the hot water tank 11 and extends to the outside of the hot water tank 11. The water inlet pipe 127 and the hot water tank 11 can be sealed by a sealing ring.

[0045] In a preferred embodiment, such as Figure 1 As shown, the end of the water inlet channel 19 located outside the hot water tank 11 is connected to the hot water pump 13, allowing the hot water pump 13 and the makeup water pump 20 to share the water inlet channel 19 to pump water to the instant heating device 12. The makeup water pump 20 and the hot water pump 13 are selectively started by the control system. In this technical solution, the hot water pump 13 and the makeup water pump 20 supply water to the instant heating device 12 through the same water inlet channel 19. The water pump 20 draws water from the ambient temperature water tank 10 and enters the instant heating device 12 through the water inlet channel 19. The water pump 13 draws water from the hot water tank 11 and also enters the instant heating device 12 through the water inlet channel 19, reducing redundant piping and lowering manufacturing costs. The control system selectively starts the makeup water pump 20 and the hot water pump 13. The makeup water pump 20 is used to replenish ambient temperature water, and the hot water pump 13 is used for circulating heating, avoiding interference between the two water paths. The control logic is clear and energy-saving.

[0046] As a preferred embodiment of this application, such as Figure 1 , Figure 3 and Figure 4As shown, the hot water tank 11 is provided with a return port 113 for the return water from the instant heating device 12. The return port 113 is located at the top of the hot water tank 11, and the hot water outlet 111 is located at the bottom of the hot water tank 11. In this technical solution, when the hot water pump 13, the hot water tank 11, and the instant heating device 12 are activated in a circulating heating mode, by placing the return port 113 at the top of the hot water tank 11 and the hot water outlet 111 at the bottom, the water temperature stratification characteristics (hot at the top and cold at the bottom) are utilized to preferentially draw low-temperature water from the bottom of the hot water tank 11 into the instant heating device 12 for heating, while the high-temperature return water naturally rises to the top of the hot water tank 11, forming a natural thermal convection circulation. This avoids energy waste caused by repeated heating of high-temperature water. Moreover, the top return design promotes the vertical circulation of water in the hot water tank 11, reducing local low-temperature zones caused by temperature stratification.

[0047] Furthermore, such as Figure 1 As shown, the integrated water purifier and heater includes a reversing valve 21, which controls the instant heating device 12 to discharge water to the outside of the integrated water purifier and heater or to the return port 113. Specifically, the reversing valve 21 has one inlet port and two outlet ports. The inlet port is connected to the outlet of the instant heating device 12, one outlet port is used for external water supply, and the other outlet port is connected to the return port 113 of the hot water tank 11. The reversing valve 21 controls the direction of water discharge from the instant heating device 12 (external water supply or internal return), realizing seamless switching between on-demand water supply and circulating heating modes. The integrated design of the reversing valve 21 reduces external pipeline connections and lowers the risk of leakage. When the integrated water purifier and heater is in the external water supply mode, the reversing valve 21 closes the return port 113 to ensure stable water pressure. When the integrated water purifier and heater is in the water circulation heating mode for the hot water tank 11, the reversing valve 21 closes the external water supply channel, forming a closed circulation path and reducing heat loss.

[0048] In a preferred embodiment, such as Figure 1 and Figure 4 As shown, the hot water tank 11 is equipped with a water supply temperature detection device 22 (such as a water temperature sensor), and the detection probe of the water supply temperature detection device 22 is located at the hot water outlet 111. This arrangement helps to accurately monitor the water supply temperature from the hot water tank 11 to the instant heating device 12. It can detect whether the water temperature in the hot water tank 11 has reached the preheating temperature when the instant heating device 12, the hot water pump 13, and the hot water tank 11 are circulating heat, and it can also detect the instant hot water inlet temperature when the instant heating device 12 dispenses water to the faucet 26. This allows for better adjustment of the heating power and / or instant hot water flow rate based on the temperature difference between the instant hot water inlet and outlet to meet the target water intake temperature.

[0049] In a preferred embodiment, such as Figure 1As shown, the instant heating device 12 is equipped with an inlet water temperature detection element 23 (such as a water temperature sensor), and the detection probe of the inlet water temperature detection element 23 is located at the water inlet of the instant heating device 12. The inlet water temperature detection element 23 provides feedback on the inlet water temperature of the instant heating device 12, optimizing the heating power distribution. Specifically, when the inlet water temperature detection element 23 and the replenishment water temperature detection element 22 are used simultaneously, they can achieve dual detection and feedback of the water temperature replenished from the hot water tank 11 to the instant heating device 12, ensuring data accuracy.

[0050] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the instant heating device 12 is equipped with an outlet water temperature detection element 24 (such as a water temperature sensor), and the detection probe of the outlet water temperature detection element 24 is located at the outlet of the instant heating device 12. The outlet water temperature detection element 24 provides real-time feedback on the outlet water temperature after heating by the instant heating device 12, ensuring the accuracy of the external hot water supply and return hot water temperature.

[0051] In a preferred embodiment, such as Figure 1 As shown, the hot water tank 11 is equipped with a water level detection device 25 (such as a water level float or water level electrode) for detecting the water level. The water level detection device 25 detects and provides feedback on the water level in the hot water tank 11 in a timely manner to avoid excessive or insufficient water level and reduce the risk of dry burning.

[0052] This application uses multi-level water temperature detection devices (makeup water temperature, inlet water temperature, outlet water temperature) to monitor the temperature of key nodes in real time, combined with water level detection device 25, to achieve precise temperature control and water level management, and avoid equipment damage caused by overheating, dry burning or insufficient water level.

[0053] As a preferred embodiment of this application, such as Figure 1 As shown, the integrated water purifier and heater includes a faucet 26 with a mixing chamber. A room temperature water tank 10 is connected to the mixing chamber via a cold water pump 27. An instant heating device 12 is also connected to the mixing chamber. The cold water pump 27 and the hot water pump 13 are controlled by a control system to either start simultaneously or selectively. Specifically, in the aforementioned embodiment where the integrated water purifier and heater includes a reversing valve 21, the outlet port of the reversing valve 21 for supplying water externally is connected to the mixing chamber, allowing the instant heating device 12 to supply water externally through the mixing chamber. In this technical solution, the cold water pump 27 can draw room temperature water from the room temperature water tank 10 into the mixing chamber, and the hot water pump 13 can draw hot water from the hot water tank 11 into the instant heating device 12 and then output it to the mixing chamber. The cold water pump 27 and the hot water pump 13 respectively control the room temperature water tank 10 and the hot water tank 11 to replenish water to the mixing chamber. The cold water pump 27 and the hot water pump 13 can be started by one of them or simultaneously, allowing users to choose pure room temperature water (hot water pump 13 not started, cold water pump 27 started), pure hot water (cold water pump 27 not started, hot water pump 13 started), or hot and cold mixed water (hot water pump 13 and cold water pump 27 started simultaneously) output. At the same time, the mixing chamber is integrated into the faucet 26, reducing external pipeline connections and reducing the risk of leakage.

[0054] Furthermore, in addition to the filter element 15 being connected to the ambient temperature water tank 10 via the water supply valve 18, the filter element 15 can also be connected to the mixing chamber via the water outlet valve 28. The filter element 15 is controlled separately by the water supply valve 18 and the water outlet valve 28, allowing filtered water to be distributed to the ambient temperature water tank 10 as needed or directly supplied to the mixing chamber, avoiding frequent start-ups and shutdowns of the filtration unit. Furthermore, with the water outlet valve 28 open and the cold water pump 27 operating, the filter element 15 and the ambient temperature water tank 10 can together supply ambient temperature water to the mixing chamber, achieving a large flow rate of ambient temperature water supply.

[0055] As a preferred embodiment of this application, such as Figure 2 and Figure 4 As shown, the instant heating device 12 includes a housing 121 and a heating element 122 and a temperature control unit 123 disposed within the housing 121. The housing 121 is fixedly connected to the hot water tank 11. A temperature control tube 124 is disposed within the housing 121, and the temperature control unit 123 is disposed within the temperature control tube 124, which isolates the water in the instant heating device 12 from the temperature control unit 123. In this technical solution, by embedding the temperature control unit 123 within the temperature control tube 124, physical isolation between the temperature control electronic components and the water circuit is achieved, improving upon the traditional solution of externally mounted temperature control unit 123 in the instant heating device 12. On the one hand, the temperature control unit 123 embedded within the instant heating device 12 can monitor the water temperature in the core heating zone in real time, significantly improving the temperature feedback response speed. On the other hand, the embedding of the temperature control unit 123 within the temperature control tube 124 provides a reliable structural foundation for the instant heating device 12 to operate within the hot water tank 11 without the temperature control electronic components being affected by water vapor. The shell 121 and the hot water tank 11 can be fixedly connected by welding, screws or other means to ensure the stability of their integrated installation.

[0056] Furthermore, such as Figure 2 and Figure 4 As shown, the heating element 122, with its terminal 125, extends outside the hot water tank 11. The temperature control tube 124 has an installation port 126, which also extends outside the hot water tank 11. The temperature control unit 123 is inserted into or removed from the temperature control tube 124 through the installation port 126. In this technical solution, the external design of the terminal 125 of the heating element 122 avoids damage to the electrical connection caused by the high-temperature water environment, thus improving safety. The design of the installation port 126 of the temperature control tube 124 allows the temperature control unit 123 to be easily disassembled and replaced without damaging the overall sealing structure. The temperature control unit 123 can be inspected and maintained through the installation port 126 while the instant heating device 12 and the hot water tank 11 are fully assembled, significantly reducing maintenance costs. In a preferred embodiment, the temperature control unit 123 may include a self-resetting temperature controller and a non-self-resetting temperature controller, providing dual protection for the device and improving the safety and reliability of the system.

[0057] Overall water circuit description of the integrated water purifier and heater:

[0058] (1) Preheating:

[0059] When the water temperature in the hot water tank 11 is lower than the preset temperature and the water volume is low, the water replenishment pump 20 starts, and water from the ambient temperature water tank 10 enters the instant heating device 12 through the water inlet channel 19. The heating element 122 also starts to heat the water. The switching valve 21 switches the flow to the return port 113 of the hot water tank 11, and the water flows back into the hot water tank 11. This cycle continues until the water temperature in the hot water tank 11 rises to the preset temperature. The heating element 122 stops heating, and the water replenishment pump 20 also stops working. When the water temperature in the hot water tank 11 is lower than the set value and no water replenishment is needed, the hot water tank 11, the hot water pump 13, and the instant heating device 12 form a circulating heating path. The hot water pump 13 draws water from the hot water tank 11 into the instant heating device 12 for heating, and then the water flows back into the hot water tank 11 until the water temperature in the hot water tank 11 is heated to the set value, thus achieving energy storage.

[0060] (2) Water discharge:

[0061] When the user's water temperature is greater than the water temperature in the hot water tank 11, the reversing valve 21 switches to supply water to the faucet 26, the hot water pump 13 starts, and the heating element 122 also starts heating. The hot water pump 13 draws the water in the hot water tank 11 into the instant heating device 12. After the heating element 122 heats the water to the target temperature, the instant heating device 12 then delivers the water to the faucet 26 and it flows out.

[0062] When the user's water temperature equals the temperature of the hot water tank 11, the reversing valve 21 switches to supply water to the faucet 26, and the heating element 122 does not start heating. The hot water pump 13 draws the water in the hot water tank 11 into the instant heating device 12. The heating element 122 does not need to heat, and the instant heating device 12 directly delivers the water to the faucet 26.

[0063] When the user's water temperature is lower than the temperature of the hot water tank 11, but higher than the ambient temperature, the reversing valve 21 switches to supply water to the faucet 26. The hot water pump 13 and cold water pump 27 start simultaneously, while the heating element 122 remains off. The hot water pump 13 draws water from the hot water tank 11 into the instant heating device 12. The heating element 122 does not need to heat the water, and the instant heating device 12 directly supplies water to the faucet 26. Simultaneously, the cold water pump 27 draws ambient temperature water from the ambient temperature tank 10 into the mixing chamber. The hot and ambient temperature water mix in the mixing chamber until the water reaches the desired temperature before flowing out. The outlet water temperature sensor 24 detects whether the temperature of the mixed hot and ambient temperature water matches the target temperature. If not, the flow rates of the ambient and hot water can be adjusted by regulating the duty cycle of the hot water pump 13 and the cold water pump 27 to ensure the mixed water temperature matches the target temperature. Furthermore, the flow rates of the ambient and hot water can also be adjusted by regulating the duty cycle of the cold water pump 27 and the hot water pump 13 to meet different water temperature requirements.

[0064] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0065] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0066] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A heat and power unit, characterized in that, The system includes a filtration unit, a room temperature water tank, a hot water tank, and an instant heating device. The instant heating device is located inside the hot water tank. The filtration unit filters the raw water into pure water and delivers it to the room temperature water tank. The hot water tank has a hot water outlet and an exhaust vent. The room temperature water tank can replenish water to the hot water tank. The hot water outlet is connected to the instant heating device via a hot water pump. The water in the instant heating device can be delivered to the outside of the integrated water purifier and heat sink or flow back into the hot water tank to maintain the water in the hot water tank at a temperature not lower than a preset temperature.

2. The integrated air purifier and heater according to claim 1, characterized in that, The hot water tank is provided with a water inlet channel that runs through both the inside and outside. One end of the water inlet channel inside the hot water tank is connected to the instant heating device. The ambient temperature water tank is connected to the end of the water inlet channel outside the hot water tank through a water replenishment pump, so that the ambient temperature water tank can pre-fill the instant heating device with water, heat it, and then return it to the hot water tank or deliver it to the outside of the integrated water purifier and heat pump.

3. The integrated air purifier and heater according to claim 2, characterized in that, The water inlet channel is located at one end outside the hot water tank and is connected to the hot water pump, so that the hot water pump and the water replenishment pump share the water inlet channel to pump water to the instant heating device. The water replenishment pump and the hot water pump are controlled by the control system to selectively start one of them.

4. The integrated air purifier and heat pump according to claim 1, characterized in that, The hot water tank is provided with a return port for the return water of the instant heating device. The return port is located at the top of the hot water tank, and the hot water outlet is located at the bottom of the hot water tank.

5. The integrated heat purifier and water heater according to claim 4, characterized in that, The integrated water purifier and heat pump includes a reversing valve, which controls the instant heating device to discharge water to the outside of the integrated water purifier and heat pump or to the return port.

6. The integrated air purifier and heater according to claim 1, characterized in that, The hot water tank is equipped with a water supply temperature detection device, and the detection probe of the water supply temperature detection device is located at the hot water outlet; And / or, the instant heating device is equipped with an inlet water temperature detection device, and the detection probe of the inlet water temperature detection device is located at the water inlet of the instant heating device; And / or, the instant heating device is equipped with an outlet water temperature detection device, and the detection probe of the outlet water temperature detection device is located at the outlet of the instant heating device; And / or, the hot water tank is equipped with a water level detection device for detecting the water level.

7. The integrated air purifier and heater according to claim 1, characterized in that, The integrated water purifier and heat pump includes a faucet with a mixing chamber, a room temperature water tank connected to the mixing chamber via a cold water pump, an instant heating device connected to the mixing chamber, and the cold water pump and the hot water pump are controlled by a control system to start one of them or both at the same time.

8. The integrated air purifier and heater according to claim 7, characterized in that, The filtration unit includes a booster pump and a filter element connected to the booster pump. The filter element is connected to the ambient temperature water tank and the mixing chamber through a water supply valve and a water outlet valve, respectively.

9. The integrated air purifier and heater according to claim 1, characterized in that, The instant heating device includes a housing and a heating element and a temperature control unit disposed within the housing. The housing is fixedly connected to the hot water tank. A temperature control tube is provided inside the housing, and the temperature control unit is disposed inside the temperature control tube. The temperature control tube isolates the water in the instant heating device from the temperature control unit.

10. The integrated air purifier and heater according to claim 9, characterized in that, The heating element has a terminal end that extends outside the hot water tank. The temperature control tube has an installation port that extends outside the hot water tank. The temperature control unit is inserted into or removed from the temperature control tube through the installation port.

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