A heat storage instant heating integrated device

Abstract

The application discloses a heat storage and instant heating integrated device, which comprises a hot water tank, an instant heating device, a hot water supplement channel and a hot water outlet channel. The instant heating device comprises a shell and a heating pipe. The heating pipe is arranged in a heating cavity of the shell. The shell is arranged in a hot water cavity of the hot water tank. The hot water cavity is provided with a water supplement inlet. An end of the heating pipe, which is provided with a terminal, extends out of the hot water tank. The hot water supplement channel is connected between the heating cavity and the hot water cavity. The hot water outlet channel is used for water outlet of the heating cavity. The shell is arranged in the hot water cavity of the hot water tank, the heating cavity of the instant heating device is heat-insulated by the heat storage function of the hot water tank, the hot water in the hot water tank transfers heat to the instant heating device, the water in the instant heating device is in a constant heating state, the water is prevented from being lowered to normal temperature for a long time, the preheating waiting time is effectively shortened, and the water can reach the set temperature quickly in the initial stage.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, specifically to a thermal storage and instantaneous heating integrated device. Background Technology

[0002] Currently, water purifiers with heating and energy storage functions are quite common in the market. These water purifiers 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. The instant heating device can then directly draw hot water from the hot water tank for heating, thereby shortening 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 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, it is necessary to preheat the water in the instant water heater for 2-5 seconds before dispensing it, prolonging the user's waiting time; or it can directly dispense low-temperature water, with the water temperature gradually increasing during dispensing, resulting in the water temperature being lower than the set outlet temperature for the first few seconds; or it can dispense hot water 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 thermal storage and instant heating integrated device to improve or solve, to a certain extent, the technical problems in existing water purifiers where the instant heating device cools down significantly when it 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 thermal storage and instant heating integrated device includes a hot water tank, an instant heating device, a hot water supply channel, and a hot water outlet channel. The instant heating device includes a shell and a heating element. The heating element is disposed in the heating chamber of the shell. The shell is installed in the hot water chamber of the hot water tank. The hot water chamber has a water supply inlet. The end of the heating element with a terminal extends out of the hot water tank. The hot water supply channel connects the heating chamber and the hot water chamber. The hot water outlet channel is used for water to flow out of the heating chamber.

[0007] In this technical solution, the housing is installed inside the hot water chamber of the hot water tank. The hot water tank's heat storage function is used to insulate the heating chamber of the instant heating device. The hot water in the tank transfers heat to the instant heating device, keeping the water inside the device at a constant temperature. This prevents the water from cooling to room temperature after prolonged periods without heating, effectively shortening the preheating time before the next heating cycle and allowing the set temperature to be reached quickly from the initial water output stage. Furthermore, by directly integrating the instant heating device into the hot water chamber of the tank, the heat storage and instant heating functions are physically integrated, effectively reducing the space occupied by traditional separate heat storage and instant heating systems. A hot water supply channel connects the heating chamber and the hot water chamber, allowing water from the hot water chamber to flow into the heating chamber located inside the housing. This helps shorten the water supply path, simplify the water circuit structure, and improve the water supply and heating speed. The external wiring terminals of the heating element prevent damage to the electrical connections from the high-temperature water environment, improving safety.

[0008] The hot water supply channel has a high-level inlet and a low-level outlet. The high-level inlet is located inside the hot water chamber and is positioned near the top of the hot water outlet chamber. The low-level outlet is connected to the heating chamber at the bottom of the hot water chamber.

[0009] In this technical solution, the differentiated design of the high-level water inlet and the low-level water outlet serves two purposes. First, in water with uneven temperature, the hot water, being less dense, will flow freely upwards. The high-level water inlet is close to the top of the hot water chamber, allowing the instant heating device to prioritize extracting the warmer upper layer of water, thus improving the water replenishment and heating efficiency. Second, gravity potential energy can be used to achieve natural water replenishment from top to bottom. The low-level water outlet guides the water flow from the bottom into the heating chamber, reducing the accumulation of air bubbles. Gravity-assisted flow can also reduce dependence on the water pump, ensuring that the basic water replenishment function can still be maintained when the power is off.

[0010] The housing is provided with a water inlet pipe, and the integrated heat storage and instant heating device includes a water replenishment component that forms the hot water replenishment channel. The water replenishment component includes a water replenishment pipe and a connecting structure. The upper end of the water replenishment pipe forms the high-level water inlet end, and the lower ends of the water inlet pipe and the water replenishment pipe pass through the bottom wall of the hot water tank. The connecting structure connects the water replenishment pipe and the water inlet pipe on the outside of the hot water tank.

[0011] In this technical solution, the water supply pipe and the water inlet pipe are separated and combined with the external connecting structure, so that the water in the hot water chamber first reaches the outside of the hot water tank through the water supply pipe, and then enters the instant heating device through the connecting structure and the water inlet pipe. This achieves physical isolation between the water circuit inside and outside the hot water tank, prevents external impurities from entering the hot water chamber, and simplifies the installation and maintenance process.

[0012] The communication structure includes a water circuit board and a water pump. The water circuit board has an inlet port that connects to the water supply pipe and an outlet port that connects to the water supply pipe. The inlet and outlet of the water pump are respectively connected to the inlet port and the outlet port. The inlet and outlet of the water pump remain open when there is no power, so that the water in the hot water chamber can flow freely towards the heating chamber through the inlet and outlet when the water pump is not powered, or be pumped into the heating chamber when the water pump is powered.

[0013] In this technical solution, the hot water chamber is connected to the heating chamber via a water supply pipe, water circuit board, water pump, and inlet pipe, achieving a silicone-free water supply connection and reducing the risk of odor generation when high-temperature hot water flows through silicone. Furthermore, the water pump adopts a normally open structure (the pump's inlet and outlet remain unobstructed when power is off), allowing water to flow naturally even when the pump is not powered on. This avoids the problem of complete water flow interruption after a power outage, ensuring that water in the hot water tank can still enter the instant heating device even when the pump is not operating (for example, a water purifier can use a top-water outlet method, specifically: the filtration unit replenishes the hot water tank with room temperature water when it is full, and the hot water originally stored in the tank is squeezed into the instant heating device; therefore, even when the pump is powered off, the top-water outlet method can still be used to replenish and heat water from the hot water tank before outputting it), reducing energy consumption. When powered on, the water pump actively pressurizes, quickly drawing water from the hot water chamber into the heating chamber for rapid water replenishment.

[0014] The hot water tank is equipped with a water temperature detection device, the detection probe of which is located at the high-level water inlet, and the water replenishment inlet is located at the bottom of the hot water chamber.

[0015] In this technical solution, the detection probe of the water temperature sensor is located at the high-position water inlet. This high-position arrangement of the detection probe helps to accurately monitor the water replenishment temperature and directly obtain information on the high-temperature water in the upper layer of the hot water chamber, avoiding interference from the low-temperature water at the bottom. The water replenishment inlet is located at the bottom of the hot water chamber, so that when external (such as the filter unit of a water purifier) ​​replenishes water into the hot water tank, room temperature water enters from the bottom of the hot water chamber, away from the high-temperature water at the upper position. This ensures that the water replenished into the instant heating device is as much as possible high-temperature water from the upper position of the hot water chamber, promoting improved heating efficiency. In addition, by detecting the water temperature in real time and feeding the water temperature data back to the control system, the heating power can be dynamically adjusted to prevent the water at the target temperature from being overheated or underheated.

[0016] The hot water tank is provided with an installation port and a water outlet cover that covers the installation port. The instant heating device is installed into the hot water chamber through the installation port. The water outlet cover is provided with a wiring port. The end of the heating element with a wiring terminal extends out from the wiring port.

[0017] In this technical solution, the instant heating device is installed entirely into the hot water chamber through the installation port, simplifying the assembly process; the water outlet cover integrates the wiring port, ensuring that the electrical connection parts are physically isolated from the hot water chamber; the heating element wiring terminals are externally placed to avoid oxidation and corrosion caused by high temperature and high humidity environments, thus extending the service life.

[0018] The heating element is provided with a water-proof flange, the water outlet cover and the water-proof flange form a water outlet cavity, the hot water outlet channel is connected to the water outlet cavity, the water-proof flange is connected to the housing, and the water-proof flange is provided with a water passage hole that connects the heating cavity and the water outlet cavity.

[0019] In this technical solution, a water-proof flange separates the heating chamber and the water outlet chamber. This chamber design creates a dual-chamber water flow path. Water heated in the heating chamber enters the water outlet chamber under the turbulence effect of the water-proof flange, where it is thoroughly mixed, resulting in a more uniform and precise outlet water temperature. The physical separation between the heating chamber and the water outlet chamber, combined with the water passage guiding the water flow, generates a laminar flow heating effect. After initial heating in the heating chamber, the water enters the water outlet chamber for further heating, extending the contact time between the water flow and the heating element and improving thermal energy utilization. Furthermore, the water-proof flange simultaneously connects the housing and the water outlet cover, forming a dual function of sealing the installation port and supporting the instant heating device, enhancing structural stability.

[0020] A first sealing body for sealing the water outlet cavity is provided between the water outlet cover and the water-proof flange; and / or, a second sealing body for sealing the installation port is provided between the water-proof flange and the hot water tank; and / or, the heating element is provided with a sealing flange, and a third sealing body for sealing the wiring port is provided between the water outlet cover and the sealing flange.

[0021] In this technical solution, the first sealing body prevents water from leaking from the water outlet cavity to the outside; the second sealing body blocks the risk of water seepage between the hot water cavity and the installation port; and the third sealing body isolates the wiring terminals at the wiring port from water vapor.

[0022] The housing is equipped with a temperature control tube, which contains a temperature control unit. The temperature control tube isolates the water in the heating chamber 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 in the heating chamber, 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 temperature control tube has a closed end and an open end. The closed end is connected to the heating element. The hot water tank is provided with a lead-in port. The position of the lead-in port corresponds to the open end, so that the temperature control unit can be inserted into the temperature control tube or taken out of the temperature control tube through the lead-in port. The wire connected to the temperature control unit passes out through the lead-in port.

[0025] In this technical solution, the open end of the temperature control tube is designed with a lead wire port, which 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 repaired through the lead wire port while the instant heating device and the hot water tank are fully assembled, which greatly reduces maintenance costs.

[0026] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows: By installing the shell inside the hot water chamber of the hot water tank, the heat storage function of the hot water tank is used to keep the heating chamber of the instant heating device warm. The hot water in the hot water tank transfers heat to the instant heating device, keeping the water inside the instant heating device at a constant temperature, preventing it from dropping to room temperature due to prolonged lack of heating. This effectively shortens the preheating waiting time before the next heating, allowing the set temperature to be quickly reached in the initial stage of water output. Furthermore, by directly integrating the instant heating device into the hot water chamber of the hot water tank, the physical integration of heat storage and instant heating functions is achieved, effectively reducing the space occupied by traditional split-type heat storage and instant heating systems. The hot water supply channel connects the heating chamber and the hot water chamber, allowing water from the hot water chamber to enter the heating chamber inside the shell, which helps shorten the water supply path, simplify the water circuit structure, and improve the water supply and heating speed. The external design of the heating element's wiring terminals avoids damage to the electrical connection caused by the high-temperature water environment, improving safety. 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 Assembly of the thermal storage and instantaneous heating integrated device provided in the embodiments of this application Figure 1 ;

[0029] Figure 2 Assembly of the thermal storage and instantaneous heating integrated device provided in the embodiments of this application Figure 2 ;

[0030] Figure 3 A cross-sectional view of the integrated heat storage and instantaneous heating device provided in the embodiments of this application. Figure 1 ;

[0031] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0033] Figure 6 A cross-sectional view of the integrated heat storage and instantaneous heating device provided in the embodiments of this application. Figure 2 ;

[0034] Figure 7 This is a schematic diagram of the structure of the hot water tank provided in an embodiment of this application;

[0035] Figure 8 This is a schematic diagram of the structure of the water outlet cover provided in the embodiment of this application;

[0036] Figure 9 This is an assembly drawing of the heating element, waterproof component, water-proof flange, and sealing flange provided in the embodiments of this application.

[0037] List of components and reference numerals:

[0038] 1 Hot water tank, 11 Hot water chamber, 12 Water inlet, 13 Installation port, 14 Water outlet cover, 141 Hot water outlet channel, 142 Connection port, 143 Lead wire port;

[0039] 21 Housing, 211 Heating chamber, 212 Water inlet pipe, 22 Heating element, 23 Wiring terminal, 24 Waterproof flange, 241 Water passage hole, 25 Sealing flange, 26 Temperature control tube, 261 Closed end, 262 Open end, 27 Temperature control unit;

[0040] 3 water supply pipes;

[0041] 4 water circuit board, 41 water inlet port, 42 water outlet port;

[0042] 5 water pumps;

[0043] 6 water temperature detection components, 61 detection probes;

[0044] 7. Water outlet chamber;

[0045] 81 First sealing body, 82 Second sealing body, 83 Third sealing body. Detailed Implementation

[0046] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In the embodiments of this application, a thermal storage and instantaneous heating integrated device 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.

[0052] Reference Figures 1 to 9As shown, the integrated heat storage and instant heating device provided in this application includes a hot water tank 1, an instant heating device, a hot water supply channel, and a hot water outlet channel 141. The instant heating device includes a housing 21 and a heating tube 22. The heating tube 22 is disposed in the heating chamber 211 of the housing 21. The housing 21 is installed in the hot water chamber 11 of the hot water tank 1. The hot water chamber 11 has a water supply inlet 12. The end of the heating tube 22 with a wiring terminal 23 extends out of the hot water tank 1. The hot water supply channel connects the heating chamber 211 and the hot water chamber 11. The hot water outlet channel 141 is used for water to flow out of the heating chamber 211.

[0053] In this technical solution, the hot water tank 1 is used to store hot water and to supply hot water to the heating chamber 211 of the instant heating device through the hot water replenishment channel. The heating element 22 is energized and heats the water to the required temperature before discharging the water out through the hot water outlet channel 141. The integrated heat storage and instant heating device can be applied to water purifiers, especially integrated purifier and heat heaters. In the integrated purifier and heat heater, the hot water outlet channel 141 has two main drainage paths: one path delivers the water to the faucet for the user to use, and the other path returns to the hot water tank 1. The water is continuously heated and circulated through the hot water tank 1 and the instant heating device until the water temperature in the hot water tank 1 reaches the preset temperature, thus storing energy and allowing the heat in the hot water tank 1 to form a heat preservation effect on the instant heating device. When the hot water chamber 11 is short of water or the water level drops to the preset low water level, water can be replenished into the hot water chamber 11 through the water replenishment inlet 12.

[0054] In this design, by installing the housing 21 inside the hot water chamber 11 of the hot water tank 1, the heat storage function of the hot water tank 1 is used to insulate the heating chamber 211 of the instant heating device. The hot water in the hot water tank 1 transfers heat to the instant heating device, keeping the water inside the device at a constant temperature. This prevents the water from dropping to room temperature due to prolonged periods without heating, effectively shortening the preheating waiting time before the next heating cycle, allowing the set temperature to be reached quickly from the initial water output stage. Furthermore, by directly integrating the instant heating device into the hot water chamber 11 of the hot water tank 1, the functions of heat storage and instant heating are physically integrated, effectively reducing the space occupied by traditional split-type heat storage and instant heating systems. Preferably, the housing 21 can be made of stainless steel, which combines strength and thermal conductivity.

[0055] The hot water supply channel connects the heating chamber 211 and the hot water chamber 11. Water from the hot water chamber 11 is supplied to the heating chamber 211 located inside the housing 21 through the hot water supply channel, which helps to shorten the water supply path, simplify the water circuit structure, and improve the water supply and heating speed. The external design of the wiring terminal 23 of the heating element 22 avoids damage to the electrical connection caused by the high temperature water environment and improves safety.

[0056] In a preferred embodiment, the instant heating device can be fixed to the wall of the hot water tank 1. This application shows that the instant heating device is fixed to the top wall of the hot water tank 1, which facilitates assembly, improves structural reliability, and facilitates subsequent maintenance.

[0057] In a preferred embodiment of this application, the hot water supply channel has a high-level inlet and a low-level outlet. The high-level inlet is located inside the hot water chamber 11 and is positioned near the top of the hot water outlet chamber 7. The low-level outlet is connected to the heating chamber 211 at the bottom of the hot water chamber 11. Because the high-level inlet is close to the top of the hot water outlet chamber 7, the heat storage and instant heating integrated device is adapted to the top-water outlet working mode of the hot water tank 1 in the heat purifier and heat pump integrated machine. Specifically, the heat purifier and heat pump integrated machine uses a room temperature water tank to replenish water to the hot water tank 1 to form a top-water outlet method. The hot water originally stored in the hot water tank 1 is squeezed by the room temperature water and enters the instant heating device through the hot water supply channel. During the top-water process, the hot water tank 1 is basically always full of water, thus continuously replenishing water to the instant heating device for heating through the hot water supply channel. In this technical solution, the differentiated design of the high-level water inlet and the low-level water outlet serves two purposes. First, in water with uneven temperature, the hot water, being less dense, will flow freely upwards. The high-level water inlet is close to the top of the hot water chamber 11, allowing the instant heating device to prioritize extracting the higher-temperature upper layer water, thus improving the water replenishment and heating efficiency. Second, gravity potential energy can be used to achieve natural water replenishment from top to bottom. The low-level water outlet guides the water flow from the bottom into the heating chamber 211, reducing the accumulation of air bubbles. Gravity-assisted flow can also reduce the dependence on the water pump 5, ensuring that the basic water replenishment function can still be maintained when the power is off.

[0058] As a preferred embodiment of this implementation, such as Figure 3 and Figure 4 As shown, the housing 21 is provided with a water inlet pipe 212. The integrated heat storage and instantaneous heating device includes a water replenishment component forming a hot water replenishment channel. The water replenishment component includes a water replenishment pipe 3 and a connecting structure. The upper end of the water replenishment pipe 3 forms a high-level water inlet end. The lower ends of the water inlet pipe 212 and the water replenishment pipe 3 pass through the bottom wall of the hot water tank 1. The connecting structure connects the water replenishment pipe 3 and the water inlet pipe 212 on the outside of the hot water tank 1. In a preferred embodiment, holes for the water inlet pipe 212 and the water replenishment pipe 3 to pass through can be pre-set in the bottom wall of the hot water tank 1. Then, the water inlet pipe 212 and the water replenishment pipe 3 are welded to the hot water tank 1 respectively, thereby ensuring the sealing of the hot water chamber 11. The ends of the water inlet pipe 212 and the water replenishment pipe 3 are both outside the hot water tank 1, which facilitates the installation of the connecting structure. In this technical solution, by separating the water supply pipe 3 and the water inlet pipe 212, and combining them with the external connecting structure, the water in the hot water chamber 11 first reaches the outside of the hot water tank 1 through the water supply pipe 3, and then enters the instant heating device through the connecting structure and the water inlet pipe 212. This achieves physical isolation between the water circuits inside and outside the hot water tank 1, prevents external impurities from entering the hot water chamber 11, and simplifies the installation and maintenance process.

[0059] Furthermore, such as Figures 2 to 4As shown, the connecting structure includes a water circuit board 4 and a water pump 5. The water circuit board 4 has an inlet port 41 that connects to the water supply pipe 3 and an outlet port 42 that connects to the water supply pipe 212. The inlet and outlet of the water pump 5 are connected to the inlet port 41 and the outlet port 42, respectively. The inlet and outlet of the water pump 5 remain open when there is no power, allowing water in the hot water chamber 11 to flow freely towards the heating chamber 211 through the inlet and outlet when the water pump 5 is not powered, or to be pumped into the heating chamber 211 when the water pump 5 is powered. In specific implementation, the water supply pipe 3 can be plugged into the inlet port 41 of the water circuit board 4 and sealed with a sealing ring, and the inlet pipe 212 can be plugged into the outlet port 42 of the water circuit board 4 and sealed with a sealing ring. The water circuit board 4 can be fixed to the bottom wall of the hot water tank 1 with screws to ensure installation reliability and connection sealing. The inlet and outlet of the water pump 5 can also be plugged into the water circuit board 4 and sealed with a sealing ring. In this technical solution, the hot water chamber 11 is connected to the heating chamber 211 through the water supply pipe 3, water circuit board 4, water pump 5, and water inlet pipe 212, so as to realize that the water supply circuit has no silicone connection and reduce the risk of odor when high-temperature hot water flows through silicone. In addition, the water pump 5 adopts a normally open structure (the inlet and outlet of the water pump 5 remain unobstructed when the power is off), allowing water to flow naturally when the water pump 5 is not powered on, avoiding the problem of the water flow being completely blocked after the power is off in traditional water pump 5. This ensures that the water in the hot water tank 1 can still enter the instant heating device through the water pump 5 when the water pump 5 is not working (for example, in the aforementioned water outlet method of the integrated water purifier and heat pump, the filter unit replenishes the hot water tank 1 with room temperature water when it is full, and the hot water originally stored in the hot water tank 1 is squeezed into the water supply pipe 3. The water in the water supply pipe 3 can continue to enter the instant heating device through the water pump 5. Therefore, the water pump 5 can still use the top water outlet method to replenish water from the hot water tank 1 to the instant heating device for heating and output when the power is off), reducing energy consumption; when powered on, the water pump 5 actively pressurizes and can quickly draw the water pump 5 in the hot water chamber 11 into the heating chamber 211 to achieve rapid water replenishment.

[0060] As a preferred embodiment, such as Figure 3 and Figure 6As shown, the hot water tank 1 is equipped with a water temperature detection device 6. The detection probe 61 of the water temperature detection device 6 is located at the high water inlet end, and the water supply inlet 12 is located at the bottom of the hot water chamber 11. In this technical solution, by placing the detection probe 61 of the water temperature detection element 6 at the high water inlet end, that is, at the upper opening of the water supply pipe 3, this high-position arrangement of the detection probe 61 helps to accurately monitor the water supply temperature. It can directly obtain the information of the high-temperature water in the upper layer of the hot water chamber 11, avoiding interference from the low-temperature water at the bottom. The accuracy of the water supply temperature monitoring also helps the instant heating device to accurately control the heating water temperature. The water supply inlet 12 is located at the bottom of the hot water chamber 11, so that when external (such as the filter unit of a water purifier) ​​water is supplied to the hot water tank 1, room temperature water enters from the bottom of the hot water chamber 11. The room temperature water is far away from the high-temperature water at the upper level, so that the water supplied to the instant heating device is as much as possible the high-temperature water at the upper level of the hot water chamber 11, which promotes the improvement of heating efficiency. In addition, by detecting the water temperature in real time by the water temperature detection element 6 and feeding the water temperature data back to the control system, the heating power can be dynamically adjusted to prevent the water at the target temperature from being overheated or underheated.

[0061] Furthermore, such as Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, the hot water tank 1 has an installation port 13 and a water outlet cover 14 that covers the installation port 13. The instant heating device is installed into the hot water chamber 11 through the installation port 13. The water outlet cover 14 has a wiring port 142, and the end of the heating element 22 with a wiring terminal 23 extends out from the wiring port 142. In this technical solution, the instant heating device is installed into the hot water chamber 11 as a whole through the installation port 13, simplifying the assembly process; the water outlet cover 14 integrates the wiring port 142, ensuring that the electrical connection part of the heating element 22 is physically isolated from the hot water chamber 11; the wiring terminal 23 of the heating element 22 is externally placed to avoid oxidation and corrosion caused by high temperature and high humidity environment, thus extending its service life.

[0062] Furthermore, such as Figure 5 , Figure 8 and Figure 9As shown, the heating element 22 is equipped with a water-proof flange 24. The water outlet cover 14 and the water-proof flange 24 form a water outlet cavity 7. The hot water outlet channel 141 communicates with the water outlet cavity 7. The water-proof flange 24 is connected to the housing 21. The water-proof flange 24 is provided with a water passage 241 that connects the heating cavity 211 and the water outlet cavity 7. Specifically, the hot water outlet channel 141 can be set on the water outlet cover 14. The water-proof flange 24 and the heating element 22 can be welded together. The water-proof flange 24 is set at the installation port 13. The heating element 22 passes through the heating cavity 211 and the water outlet cavity 7. The volume of the heating cavity 211 is larger than the volume of the water outlet cavity 7. Most of the area of ​​the heating element 22 is located in the heating cavity 211, and a small part of the area is located in the water outlet cavity 7, so that the water can be fully heated in the heating cavity 211. The water-proof flange 24 separates the heating chamber 211 and the water outlet chamber 7. This chamber design creates a dual-chamber water flow path. The water heated in the heating chamber 211 enters the water outlet chamber 7 under the turbulence effect of the water-proof flange 24, where it is thoroughly mixed, resulting in a more uniform and precise outlet water temperature. The physical separation between the heating chamber 211 and the water outlet chamber 7, combined with the water passage 241 guiding the water flow, generates a laminar flow heating effect. After initial heating in the heating chamber 211, the water enters the water outlet chamber 7 for further heating, extending the time the water flows in contact with the heating element 22 and improving thermal energy utilization. In addition, the water-proof flange 24 simultaneously connects the housing 21 and the water outlet cover 14, forming a dual function of sealing the installation port 13 and supporting the instant heating device, enhancing structural stability.

[0063] In a preferred embodiment, such as Figure 5 As shown, a first sealing body 81 for sealing the water outlet cavity 7 is provided between the water outlet cover 14 and the water-proof flange 24. The first sealing body 81 prevents water from leaking from the water outlet cavity 7 to the outside; in a preferred embodiment, such as Figure 5 As shown, a second sealing body 82 is provided between the water-proof flange 24 and the hot water tank 1 to seal the installation port 13. The second sealing body 82 prevents the risk of water leakage between the hot water chamber 11 and the installation port 13; in a preferred embodiment, such as Figure 5 and Figure 9 As shown, the heating element 22 is provided with a sealing flange 25, and a third sealing body 83 for sealing the wiring port 142 is provided between the water outlet cover 14 and the sealing flange 25. The third sealing body 83 isolates the wiring terminal 23 at the wiring port 142 from water vapor.

[0064] As a preferred embodiment of this application, such as Figure 3 , Figure 5 and Figure 9As shown, a temperature control tube 26 is provided inside the housing 21, and a temperature control unit 27 is provided inside the temperature control tube 26. The temperature control tube 26 isolates the water in the heating chamber 211 from the temperature control unit 27. In a preferred embodiment, the temperature control unit 27 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. By embedding the temperature control unit 27 inside the temperature control tube 26, 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 27 in instant heating devices. On the one hand, the temperature control unit 27, embedded in the heating chamber 211, can monitor the water temperature in the core heating area in real time, significantly improving the temperature feedback response speed. On the other hand, the embedding of the temperature control unit 27 inside the temperature control tube 26 provides a reliable structural foundation for the instant heating device to operate in the hot water tank 1 without the temperature control electronic components being affected by water vapor.

[0065] Furthermore, the temperature control tube 26 has a closed end 261 and an open end 262. The closed end 261 is connected to the heating element 22. The hot water tank 1 is provided with a lead-in port 143, the position of which corresponds to the open end 262. The temperature control unit 27 is installed into or removed from the temperature control tube 26 through the lead-in port 143, and the wire connected to the temperature control unit 27 passes through the lead-in port 143. The design of the open end 262 of the temperature control tube 26 in conjunction with the lead-in port 143 allows the temperature control unit 27 to be easily disassembled and replaced without damaging the overall sealing structure. The temperature control unit 27 can be inspected and maintained through the lead-in port 143 while the instant heating device and the hot water tank 1 are fully assembled, significantly reducing maintenance costs. Specifically, the lead-in port 143 can be located on the water outlet cover 14, and the mating position between the open end 262 and the lead-in port 143 can be sealed by a third sealing body 83 to prevent water vapor from entering the temperature control tube 26 and affecting the temperature control unit 27.

[0066] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0067] 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.

[0068] 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 thermal storage and instantaneous heating integrated device, characterized in that, The device includes a hot water tank, an instant heating device, a hot water supply channel, and a hot water outlet channel. The instant heating device includes a housing and a heating element. The heating element is located inside the heating chamber of the housing. The housing is installed inside the hot water chamber of the hot water tank. The hot water chamber has a water supply inlet. The end of the heating element with a terminal extends out of the hot water tank. The hot water supply channel connects the heating chamber and the hot water chamber. The hot water outlet channel is used to discharge water from the heating chamber.

2. The integrated heat storage and instantaneous heating device according to claim 1, characterized in that, The hot water supply channel has a high-level inlet and a low-level outlet. The high-level inlet is located inside the hot water chamber and is positioned near the top of the hot water outlet chamber. The low-level outlet is connected to the heating chamber at the bottom of the hot water chamber.

3. The integrated heat storage and instantaneous heating device according to claim 2, characterized in that, The housing is provided with a water inlet pipe, and the integrated heat storage and instant heating device includes a water replenishment component that forms the hot water replenishment channel. The water replenishment component includes a water replenishment pipe and a connecting structure. The upper end of the water replenishment pipe forms the high-level water inlet end, and the lower ends of the water inlet pipe and the water replenishment pipe pass through the bottom wall of the hot water tank. The connecting structure connects the water replenishment pipe and the water inlet pipe on the outside of the hot water tank.

4. The integrated heat storage and instantaneous heating device according to claim 3, characterized in that, The communication structure includes a water circuit board and a water pump. The water circuit board has an inlet port that connects to the water supply pipe and an outlet port that connects to the water supply pipe. The inlet and outlet of the water pump are respectively connected to the inlet port and the outlet port. The inlet and outlet of the water pump remain open when there is no power, so that the water in the hot water chamber can flow freely towards the heating chamber through the inlet and outlet when the water pump is not powered, or be pumped into the heating chamber when the water pump is powered.

5. The integrated heat storage and instantaneous heating device according to claim 2, characterized in that, The hot water tank is equipped with a water temperature detection device, the detection probe of which is located at the high-level water inlet, and the water replenishment inlet is located at the bottom of the hot water chamber.

6. The integrated heat storage and instantaneous heating device according to claim 1, characterized in that, The hot water tank is provided with an installation port and a water outlet cover that covers the installation port. The instant heating device is installed into the hot water chamber through the installation port. The water outlet cover is provided with a wiring port. The end of the heating element with a wiring terminal extends out from the wiring port.

7. The integrated heat storage and instantaneous heating device according to claim 6, characterized in that, The heating element is provided with a water-proof flange, the water outlet cover and the water-proof flange form a water outlet cavity, the hot water outlet channel is connected to the water outlet cavity, the water-proof flange is connected to the housing, and the water-proof flange is provided with a water passage hole that connects the heating cavity and the water outlet cavity.

8. The integrated heat storage and instantaneous heating device according to claim 7, characterized in that, A first sealing body for sealing the water outlet cavity is provided between the water outlet cover and the water-proof flange; And / or, a second sealing body for sealing the mounting port is provided between the water-proof flange and the hot water tank; And / or, the heating element is provided with a sealing flange, and a third sealing body for sealing the connection port is provided between the water outlet cover and the sealing flange.

9. The integrated heat storage and instantaneous heating device according to claim 1, characterized in that, The housing is equipped with a temperature control tube, which contains a temperature control unit. The temperature control tube isolates the water in the heating chamber from the temperature control unit.

10. The integrated heat storage and instantaneous heating device according to claim 9, characterized in that, The temperature control tube has a closed end and an open end. The closed end is connected to the heating element. The hot water tank is provided with a lead-in port. The position of the lead-in port corresponds to the open end. The temperature control unit is inserted into the temperature control tube through the lead-in port or taken out of the temperature control tube. The wire connected to the temperature control unit passes out through the lead-in port.

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