Hot tank assembly and purifying and heating all-in-one machine

Abstract

The hot tank assembly comprises a tank body and a heating piece, the tank body is in a long cylinder shape with the axial size larger than the radial size, and the tank body is provided with a heating cavity, a water inlet and a water outlet, and the water inlet and the water outlet communicate with the heating cavity; the heating part is arranged in the heating cavity, extends towards the bottom of the tank body in a spiral shape and is not in contact with the bottom of the tank body, and two screwed-out end parts of the spiral heating part are parallel to each other, extend out of the tank body respectively and are mounted on the same bus of the tank body. According to the hot tank assembly, the temperature rising speed of water at the bottom of the tank body can be increased, and the problem that the temperature of the first cup of water is low is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purification equipment, in particular to a hot tank assembly and a water purification and heating integrated machine provided with the hot tank assembly. BACKGROUND

[0002] In the related art, the water purification and heating integrated machine is a water purification equipment integrating water purification and heating functions. When a user takes the first cup of water, the water at the bottom of the hot tank has not been fully heated, and the water temperature is still at a low level, which does not meet the user's expectation of taking hot water, and affects the user's experience. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a hot tank assembly and a water purification and heating integrated machine, aiming to solve the problem of low water temperature of the first cup of water of the existing water purification and heating integrated machine.

[0004] In order to achieve the above purpose, the first aspect of the embodiments of the present application provides a hot tank assembly, comprising:

[0005] a tank body having a heating cavity and a water inlet and a water outlet respectively communicating with the heating cavity; and

[0006] a heating element arranged in the heating cavity and extending towards the bottom of the tank body in a spiral shape without contacting the bottom of the tank body, both ends of the heating element spirally wound are parallel to each other, and the two ends respectively extend out of the tank body and are mounted on the same busbar of the tank body.

[0007] In some embodiments, the water outlet is higher than the bottom of the tank body.

[0008] In some embodiments, the water outlet is not lower than the lowest position of the heating element in the height direction.

[0009] In some embodiments, the hot tank assembly further comprises a water pump and a hot water outlet pipe, the water inlet of the water pump communicates with the water outlet;

[0010] One end of the hot water outlet pipe communicates with the water outlet of the water pump, and the other end penetrates the heating cavity and at least partially overlaps the heating element in the height direction.

[0011] In some embodiments, the hot water outlet pipe extends into the heating cavity from the bottom of the tank body and penetrates out of the top of the tank body.

[0012] In some embodiments, the top of the tank body is provided with an exhaust port, the hot water outlet pipe penetrates out of the exhaust port, and the hot water outlet pipe and the wall of the exhaust port have a gap.

[0013] In some embodiments, the hot tank assembly further comprises a tee pipe having a first joint, a second joint and a third joint in communication, wherein the first joint is opposite to the second joint, and the inner diameter of the first joint is larger than that of the second joint;

[0014] The first joint is connected to the exhaust port, the hot water outlet pipe passes through the first joint and is sealingly connected to the inner wall of the second joint, so that the hot water outlet pipe is in communication with the second joint and the first joint is blocked with the second joint;

[0015] The gap between the hot water outlet pipe and the wall of the exhaust port is in communication with the third joint.

[0016] In some embodiments, the hot tank assembly further comprises an exhaust pipe connected to the exhaust port, the hot water outlet pipe is arranged in the exhaust pipe, and there is a gap between the hot water outlet pipe and the inner wall of the exhaust pipe, the first joint is sleeved on the exhaust pipe, and the gap between the hot water outlet pipe and the inner wall of the exhaust pipe is in communication with the third joint.

[0017] In some embodiments, the hot tank assembly further comprises a condensing pipe having a condensing cavity, and the third joint passes through the condensing cavity.

[0018] In some embodiments, the condensing pipe further has a water inlet joint and a water outlet joint in communication with the condensing cavity respectively, and the water outlet joint is in communication with the water inlet port.

[0019] In some embodiments, the water outlet joint is higher than the water inlet joint and is diagonally arranged with the water inlet joint.

[0020] In some embodiments, the spiral center line of the heating element coincides with the central axis of the tank body.

[0021] In some embodiments, the hot tank assembly further comprises a detection assembly for detecting the water level in the heating cavity, the detection assembly comprises a high water level probe and a low water level probe, and the high water level probe and the low water level probe are arranged at intervals at the top of the tank body and extend into the heating cavity.

[0022] In some embodiments, the end of the high water level probe is higher than the heating element, and the low water level probe is lower than the highest position of the heating element.

[0023] The second aspect of the embodiments of the present application provides a net heat all-in-one machine, comprising:

[0024] The shell assembly has a hot tank cavity and a filter core cavity;

[0025] a filter assembly installed in the filter core cavity and having a raw water inlet and a purified water outlet; and

[0026] a hot tank assembly as described above installed in the hot tank cavity, the water inlet being in communication with the purified water outlet.

[0027] In some embodiments, the hot tank assembly further comprises:

[0028] a water pumping device having a water suction port in communication with the water outlet;

[0029] a hot water outlet pipe in communication with a water discharge port of the water pumping device;

[0030] the filter assembly comprises:

[0031] a filter core having a raw water inlet and a purified water outlet;

[0032] a purified water outlet pipe connected to the purified water outlet;

[0033] the water purifying and heating all-in-one machine further comprises:

[0034] a booster pump connected to the purified water outlet pipe;

[0035] a faucet connected to the purified water outlet pipe and the hot water outlet pipe;

[0036] a first temperature sensor for detecting the temperature in the heating cavity;

[0037] a second temperature sensor for detecting the temperature in the purified water outlet pipe; and

[0038] a controller for receiving the detection values of the first temperature sensor and the second temperature sensor and controlling the operating power of the water pumping device and the booster pump to form water at a set temperature value at the faucet.

[0039] In the hot tank assembly provided by the embodiments of the present application, the heating element is arranged in the heating cavity and extends in a spiral shape towards the bottom of the tank body without contacting the bottom of the tank body. In the heating process, the conventional heating method can cause the water at the bottom of the hot tank to be heated too slowly because the heat needs to be gradually transmitted from the position where the heating element is arranged to the water at the bottom of the tank body, the distance is far and the heat transmission has a certain time delay. In the present application, the heating element is arranged close to the tank bottom cover, which can make the heat be transmitted more directly and more quickly to the water at the bottom of the tank body, significantly accelerating the heating speed of the water at the bottom of the tank body.

[0040] Further, the two ends of the spiral heating element are parallel to each other, and the two ends respectively extend out of the kettle body and are installed on the same busbar of the kettle body. That is, the two ends are located on a vertical plane. Such design has various benefits: first, the bottom of the spiral heating element tends to be close to the plane, so that the heating element can be arranged as close to the bottom of the kettle body as possible. When the bottom of the heating element is close to the plane, the distance between the heating element and the water at the bottom of the kettle body can be more uniform and stable without contacting, so that the heat can be more efficiently transferred to the water at the bottom of the kettle body, the water heating speed at the bottom of the kettle body is accelerated, and the problem of low temperature of the first cup of water is solved.

[0041] Secondly, the two ends of the heating element are located on the same busbar, which facilitates the installation of the heating element on the kettle body. In the production and assembly process, the operator can more conveniently and accurately fix the heating element on the kettle body according to the clear installation position requirement of the rule, which improves the production efficiency and is also beneficial to ensure the stability of the installation of the heating element. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0043] Figure 1 The internal structure schematic diagram of the net heat all-in-one machine provided by the embodiments of the present application is shown in the figure.

[0044] Figure 2 The structure schematic diagram of the hot kettle assembly provided by the embodiments of the present application is shown in the figure.

[0045] Figure 3 The structure schematic diagram of the hot kettle assembly provided by the embodiments of the present application is shown in the figure.

[0046] Figure 4 The internal structure schematic diagram of the hot kettle assembly provided by the embodiments of the present application is shown in the figure.

[0047] Figure 5 The structure schematic diagram of the heating element provided by the embodiments of the present application is shown in the figure.

[0048] Figure 6 Another structure schematic diagram of the hot kettle assembly provided by the embodiments of the present application is shown in the figure.

[0049] Figure 7 Another internal structure schematic diagram of the hot kettle assembly provided by the embodiments of the present application is shown in the figure.

[0050] Figure 8Structure diagram of the three-way pipe and the exhaust pipe provided by the embodiment of the present application;

[0051] Figure 9 For Figure 7 Enlarged view of A in the middle;

[0052] Figure 10 Structure diagram of the condensing pipe and the third joint provided by the embodiment of the present application;

[0053] Figure 11 Structure diagram of the condensing pipe and the third joint provided by the embodiment of the present application.

[0054] Explanation of reference numerals:

[0055] 10, housing assembly; 101, filter core cavity; 102, hot tank cavity; 1021, air inlet; 1022, air outlet; 20, hot tank assembly; 21, tank body; 22, heating element; 27, hot water outlet pipe; 23, detection assembly; 24, exhaust pipe; 211, tank body; 212, tank top cover; 213, tank bottom cover; 201, heating cavity; 214, water inlet; 216, water outlet; 217, exhaust port; 233, high water level probe; 234, low water level probe; 30, water pump; 50, filter assembly; 26, three-way pipe; 261, first joint; 262, second joint; 263, third joint; 28, condensing pipe; 280, condensing cavity; 281, water inlet joint; 282, water outlet joint.

[0056] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the embodiments of the present application with reference to the accompanying drawings.

[0058] The following description refers to the accompanying drawings. Unless otherwise noted, like numbers in different drawings refer to the same or similar elements. The following description of the example embodiments is not meant to represent all embodiments in accordance with the present application. Rather, they are merely examples of apparatus and methods in accordance with some aspects of the present application as detailed in the appended claims.

[0059] In the description of the present application, it needs to be understood that the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance. The above terms can be understood according to the specific meaning in the present application by the ordinary skilled in the art. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0061] The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it needs to be understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present application, for the ordinary skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0062] The present application provides a hot tank assembly and a heat purification integrated machine, which can solve the problem of low water temperature of the first cup of water of the existing heat purification integrated machine, so as to improve the user experience.

[0063] Specifically, please refer to Figures 1 to 5 , Figure 1 The structural schematic diagram of the heat purification integrated machine provided by the present application embodiment; Figure 2 The structural schematic diagram of the hot tank assembly 20 provided by the present application embodiment; Figure 3 The structural schematic diagram of the hot tank assembly 20 provided by the present application embodiment after hiding the tank body 211; Figure 4 The internal structural schematic diagram of the hot tank assembly provided by the present application embodiment; Figure 5 The structural schematic diagram of the heating element provided by the present application embodiment.

[0064] The heat purification integrated machine of the present embodiment can be a household heat purification integrated machine, such as a kitchen-under heat purification integrated machine.

[0065] The net heat all-in-one machine of the embodiment includes a shell assembly 10, a filter assembly 50, and a heat tank assembly 20.

[0066] The shell assembly 10 serves as the external support structure of the net heat all-in-one machine, which can include an outer shell. The shape of the outer shell can be a regular geometric shape, such as a cube or a cuboid, etc. Such regular shapes have multiple advantages: on the one hand, regular shapes facilitate mold making and standardized assembly of parts during the production process, effectively improving production efficiency and reducing production costs; on the other hand, in the installation and use scenarios, the regular-shaped outer shell is easier to adapt to the surrounding environment, whether placed in the kitchen cabinet or other specific use locations, it can be placed more regularly, saving space and being elegant and beautiful.

[0067] The shell assembly 10 is internally formed with two chambers, namely a heat tank cavity 102 and a filter core cavity 101. The heat tank cavity 102 is mainly used to accommodate the heat tank assembly 20, providing a stable installation space for the heat tank assembly 20, ensuring its stability during heating, heat preservation, and other working processes. The filter core cavity 101 is used to accommodate the filter assembly 50. The two chambers are relatively independent, which can avoid mutual interference between different heat tank assemblies 20 and filter assemblies 50, and also facilitate subsequent maintenance, repair, or replacement of each component.

[0068] As the external support and protection structure of the entire heat tank assembly 20, in addition to having functional partitions such as the heat tank cavity 102 and the filter core cavity 101, the shell assembly 10 also has a heat dissipation function in this embodiment to ensure that the internal heat tank assembly 20 and other components can be stably installed and work in a normal temperature environment.

[0069] Exemplarily, the shell assembly 10 also has an air inlet 1021 and an air outlet 1022 that communicate with the heat tank cavity 102 respectively, and the air inlet 1021, the heat tank cavity 102, and the air outlet 1022 together constitute a cooling air duct. The air inlet 1021 is arranged at the bottom of the outer shell, and the air inlet 1021 communicates with the bottom of the heat tank cavity 102, so that the external cold air can smoothly enter the area where the heat tank cavity 102 is located from the bottom of the equipment. The air outlet 1022 is arranged at the top of the outer shell and communicates with the top of the heat tank cavity 102, which facilitates the hot air generated by the heat tank assembly 20 during operation to be discharged from the top air outlet 1022 under the action of thermal buoyancy, etc. The layout of the entire cooling air duct forms a heat convection channel, cold air enters from the bottom air inlet 1021, flows through the heat tank assembly 20, becomes hot air after absorbing heat, and is then discharged from the top air outlet 1022, thereby effectively taking away the heat emitted by the heat tank assembly 20, maintaining the heat tank assembly 20 and its surrounding environment within a relatively suitable temperature range, and ensuring the normal operation of the equipment.

[0070] The filter assembly 50 of the embodiment is installed in the filter core cavity 101, and is provided with a raw water inlet and a pure water outlet. The raw water inlet can be directly connected with an external tap water supply pipeline, and is an inlet for tap water to enter the water purification and heating all-in-one machine for filtration treatment. The pure water outlet is connected with the water inlet 214 of the heat tank assembly 20, so that the filtered pure water can flow into the heat tank assembly 20 for subsequent heating or heat preservation operation, or be directly supplied to the user through the faucet.

[0071] The filter assembly 50 of the embodiment has a multi-stage filtration function, which can include PAC (polyaluminum chloride) filtration and RO (reverse osmosis) filtration. The PAC filtration is a pre-filtering link, which can make the suspended particles, colloids and other impurities in tap water gather into larger flocculent substances by using the flocculation of PAC, so as to facilitate subsequent filtration and removal. The PAC filtration can effectively intercept the large-particle impurities such as silt and rust in water, reduce the burden of subsequent RO filtration, and prolong the service life of the RO membrane.

[0072] The RO filtration is the core link in the entire filtration process. The RO reverse osmosis membrane has an extremely small pore size, which can only allow water molecules to pass under pressure driving, and can intercept most of the impurities such as bacteria, viruses and heavy metal ions in water, so as to obtain pure water with extremely high purity. Through the synergistic effect of the two-stage filtration, it is ensured that the water flowing out of the pure water outlet of the filter assembly 50 reaches a very high degree of purity, meeting the user's requirements for healthy and high-quality drinking water.

[0073] In the filtration process, due to the filtration characteristics of the RO reverse osmosis membrane, a small part of waste water will be generated after the tap water is filtered. The waste water is discharged through the waste water outlet provided on the filter assembly 50.

[0074] The heat tank assembly 20 of the embodiment is a key part of the water purification and heating all-in-one machine, which can solve the problem of low temperature of the first cup of water, achieve a more efficient and uniform heating effect, and improve the user experience.

[0075] Specifically, the hot tank assembly 20 comprises a tank body 21 and a heating element 22. Among them, the tank body can be cylindrical, cuboid, etc. Exemplarily, the tank body 21 presents a long cylindrical structure with an axial dimension greater than a radial dimension. The long cylindrical tank body 21 has various advantages. From the perspective of space utilization, it has a certain extension length in the vertical direction, which can increase the internal water storage volume on the basis of limited planar floor area, thereby meeting certain amount of hot water supply demand, and is suitable for application in various devices with certain requirements for space layout, such as a net heat all-in-one machine installed in a kitchen cabinet. From the perspective of heat transfer, the long cylindrical structure makes the water form a relatively stable stratification in the tank body 21, which is conducive to the relatively uniform conduction of heat in the vertical direction, and compared with some irregular or short and thick tank body 21 structures, it can reduce the local heat accumulation or heat transfer dead angle situation.

[0076] Further, the tank body 21 comprises a tank body 211, a tank top cover 212 and a tank bottom cover 213, the height dimension of the tank body 211 is greater than its width dimension, the tank body 211 is connected with the tank top cover 212 and the tank bottom cover 213 respectively, and the three together form a heating cavity 201. Among them, the tank body 211 constitutes the side of the tank body 21, the tank top cover 212 constitutes the top of the tank body 21, and the tank bottom cover 213 constitutes the bottom of the tank body 21. Among the tank body 211, the tank top cover 212 and the tank bottom cover 213, the three parts can be processed respectively by suitable process, for example, the tank body 211 can be formed by rolling process, the tank top cover 212 and the tank bottom cover 213 are made by stamping process, and then sealed and connected, which not only ensures the overall structural strength of the tank body 21, but also improves the efficiency and reduces the cost in the production process.

[0077] The tank body 21 is provided with a water inlet 214 and a water outlet 216 respectively communicating with the heating cavity 201. The water inlet 214 is used to introduce the external pre-processed (such as filtered pure water) into the heating cavity 201, and its position can be arranged on the tank top cover 212 to ensure that the entering water is first distributed in the upper layer of hot water, thereby reducing the influence on the middle and lower water layers in the heating cavity 201. The water outlet 216 is arranged higher than the tank bottom cover 213. For example, the water outlet 216 can be arranged on the tank bottom cover 213, and the tank bottom cover 213 is formed with a protruding portion facing the heating element 22, and the water outlet 216 is arranged on the protruding portion. The water outlet 216 can also be arranged at a specific position of the tank body 211, which is a certain distance from the tank bottom cover 213. In this way, it is avoided to directly take water from the hot tank bottom, because the water at the hot tank bottom is usually the part with lower temperature at the initial stage of heating. By arranging the water outlet 216 at a position higher than the tank bottom cover 213, the water flowing out from the heating cavity 201 comes from a relatively high-temperature area, thereby solving the problem of low temperature of the first cup of water, ensuring that the temperature of the first cup of water taken by the user can meet the expectation, meeting the user's demand for immediate use of hot water, for example, it can be directly used for brewing drinks and the like, greatly improving the user's experience.

[0078] Further, the water outlet 216 is not lower than the lowest position of the heating element 22 in the height direction. In this way, when the water flows out from the water outlet 216, the water has already been in the area that has been fully heated, ensuring that the flowing hot water has a high temperature.

[0079] The heating element 22 is arranged in the heating cavity 201 and extends towards the tank bottom cover 213 without contacting the tank bottom cover 213. The heating element 22 can be a heating wire, an electric heating tube, a heating rod, etc. In the heating process of the hot tank, the conventional heating method can cause the water at the bottom of the hot tank to heat up slowly, because the heat needs to be gradually transmitted downward from the position of the heating element 22 to the water at the bottom of the tank, the distance is far and there is a certain time delay in heat transfer. In the embodiment, the heating element 22 is arranged close to the tank bottom cover 213, which can make the heat more directly and quickly transmitted to the water at the bottom of the hot tank, significantly accelerating the heating speed of this part of water.

[0080] As Figure 2 , Figure 4 and Figure 5As shown, the heating element 22 is arranged in a spiral shape, and the two ends of the spiral heating element 22 are parallel to each other, and the two ends respectively extend out of the kettle body 211 and are installed on the same bus L of the kettle body 211. The two ends can be respectively connected to the terminal, so as to realize the function of power supply, provide power for the heating element 22 to generate heat, and then heat the water in the heating cavity 201. The two ends are parallel to each other and are installed on the same bus L of the kettle body 211, which means that they are located on a vertical plane. Such design has many benefits: first, the bottom of the spiral heating element 22 tends to approach the plane, so that the distance H between the heating element 22 and the kettle bottom cover 213 can be set smaller, that is, the heating element 22 can be arranged as close to the kettle bottom cover 213 as possible. Because when the bottom approaches the plane, the distance H between the heating element 22 and the kettle bottom cover 213 can be ensured not to contact, the heating element 22 can be closer to the water at the bottom of the kettle, so that the heat can be more efficiently transferred to the water at the bottom of the kettle, the heating speed of the water at the bottom of the kettle is accelerated, the problem of slow heating of the water at the bottom in the traditional design is solved, and the uniformity of the overall heating of the water in the kettle is further ensured. Second, the two ends are located on the same bus, which facilitates the installation of the heating element 22 on the kettle body 211. In the production and assembly process, the operator can more conveniently and accurately fix the heating element 22 on the kettle body 211 according to the clear installation position requirement of this rule, which improves the production efficiency and also helps to ensure the stability of the installation of the heating element 22.

[0081] Further, the spiral center line of the heating element 22 coincides with the center axis of the kettle body 211. When the spiral center line of the heating element 22 coincides with the center axis of the kettle body 211, the heat generated by the heating element 22 can be symmetrically emitted to the surrounding water with the center of the kettle body 211 as the center of symmetry. In this way, the water at each position in the kettle can receive an equal amount of heat in a similar time, avoiding the situation that the local water temperature is too high or too low due to uneven heating.

[0082] Please refer to Figure 6 and Figure 7 , Figure 6 another structural schematic view of the kettle assembly 20 provided by the embodiments of the present application; Figure 7 another internal structural schematic view of the kettle assembly 20 provided by the embodiments of the present application.

[0083] In some embodiments, the kettle assembly 20 further comprises a water pump 30 and a hot water outlet pipe 27. The water pump 30 plays a key role in the whole process of taking hot water from the kettle assembly 20. It can provide power for the extraction and transportation of hot water, and ensure that the water can flow out of the heating cavity 201 smoothly for the user to take and use.

[0084] The water suction port of the water pump 30 is communicated with the water outlet 216, and the water discharge port of the water pump 30 is communicated with the hot water outlet pipe 27. In this way, the heated hot water in the heating cavity 201 can smoothly enter the hot water outlet pipe 27 under the action of the water pump 30, and then flow to the subsequent water taking link.

[0085] In one embodiment, as shown in Figure 7 The water outlet 216 is arranged on the tank body 211, the water suction port of the water pump 30 is connected with the water outlet 216 through a water pipe, the water pump is fixed on the shell assembly 10, and the fixing mode can be bolt or screw connection; or the shell forming the water suction port of the water pump 30 is directly connected and fixed on the tank body 211 at the water outlet 216, and the water suction port of the water pump 30 and the water outlet 216 do not need to be connected through a water pipe.

[0086] In another embodiment, as shown in Figure 4 The water outlet 216 is arranged on the protruding part of the tank bottom cover 213, and the shell forming the water suction port of the water pump 30 is directly connected on the tank bottom cover 213 at the water outlet 216, for example, the shell at the water suction port of the water pump 30 is connected with the tank bottom cover 213 through bolts or screws, so as to form a communication state, and the water suction port of the water pump 30 and the water outlet 216 do not need to be connected through a water pipe.

[0087] In one of the embodiments, one end of the hot water outlet pipe 27 is communicated with the water outlet of the water pump 30, and the other end is arranged in the heating cavity 201 and at least partially overlaps with the heating element 22 in the height direction. The above-mentioned arrangement of the hot water outlet pipe 27 in the heating cavity 201 has various benefits. First, the hot water outlet pipe 27 is arranged in the heating cavity 201, which can be arranged into the tank bottom cover 213 or the tank body 211 according to the actual structure design requirements, and can be arranged out of the tank body 211 or the tank top cover 212. No matter how the specific arrangement position is selected, the purpose is to enable the water remaining in the hot water outlet pipe 27 to be in the heating environment in the heating cavity 201. After the user takes water, water will inevitably remain in the hot water outlet pipe 27. If there is no reasonable treatment method, the remaining water will cause the first cup of water to be low in temperature when the user takes water next time. When the hot water outlet pipe 27 is arranged in the heating cavity 201, the remaining water can be heated by the heat emitted by the heating element 22 in the heating cavity 201 when the heating is started again. Thus, in the case of a long interval or the first time of taking water, the remaining cold water will not be directly discharged, avoiding the bad user experience.

[0088] Further, one end of the hot water outlet pipe 27 extends into the heating cavity 201 from the tank bottom cover 213 and extends out of the tank top cover 212. On the one hand, since the hot water outlet pipe 27 extends through the entire heating cavity 201 from the tank bottom cover 213 to the tank top cover 212, the length of the hot water outlet pipe 27 in the heating cavity 201 is longer, and the hot water outlet pipe 27 has a larger contact area with the hot water in the heating cavity 201 and the heat emitted by the heating element 22, so that the hot water outlet pipe 27 can more fully absorb heat. When the user takes water, the water remaining in the hot water outlet pipe 27 can be more fully and effectively heated in the next heating process, thereby better solving the problem of low temperature of the first cup of water caused by the remaining water in the hot water outlet pipe 27. On the other hand, the hot water outlet pipe 27 extends through the tank body 21 in the vertical direction, which is more regular than some complex and circuitous water path layout, and can effectively save the space inside the tank body 21, so that the overall structure of the hot tank assembly 20 is more compact.

[0089] Further, the tank top cover 212 is provided with an exhaust port 217, and the hot water outlet pipe 27 passes through the exhaust port 217 and has a gap with the wall of the exhaust port 217. During the heating process of the hot tank, high-temperature steam is generated in the tank body 21, and an exhaust passage is needed to maintain the pressure balance in the tank body 21, so as to avoid safety hazards or affect the normal operation of the equipment due to excessive pressure. The hot water outlet pipe 27 passes through the exhaust port 217 provided with the gap, and the steam exhaust function is realized by skillfully using the space. The high-temperature steam can smoothly exhaust from the tank body 21 along the gap between the hot water outlet pipe 27 and the wall of the exhaust port 217, which not only ensures the effective exhaust of the steam, but also saves the design space of the tank body 21 without additionally setting a large-area exhaust passage.

[0090] Please refer to Figure 7 、 Figure 8 and Figure 9 , Figure 8 the structure schematic view of the tee pipe 26 and the exhaust pipe 24 provided by the embodiment of the present application; Figure 9 is Figure 7 the enlarged view of A in FIG. 4.

[0091] In some embodiments, the hot tank assembly 20 further comprises a tee pipe 26, and the tee pipe 26 has a first joint 261, a second joint 262 and a third joint 263 connected in communication. The first joint 261 is opposite to the second joint 262, and the inner diameter of the first joint 261 is greater than that of the second joint 262. The first joint 261 is connected at the exhaust port 217, the hot water outlet pipe 27 passes through the first joint 261 and partially extends into the second joint 262, and the partially extended hot water outlet pipe 27 is sealingly connected with the inner wall of the second joint 262. Through the sealing connection mode, the hot water outlet pipe 27 is in communication with the second joint 262, and the sealing of the first joint 261 and the second joint 262 is realized, so as to ensure that the hot water flows along the predetermined path, i.e. from the hot water outlet pipe 27 into the second joint 262 and then flows out, and avoid the hot water from leaking to other positions where it should not appear, thereby ensuring the stability and accuracy of the hot water exhaust.

[0092] The gap originally existing between the hot water outlet pipe 27 and the wall of the exhaust port 217 is in communication with the third joint 263 after the connection with the tee pipe 26. In this way, the high-temperature steam generated during the heating process of the hot tank can enter the third joint 263 along the gap between the hot water outlet pipe 27 and the wall of the exhaust port 217, and then be smoothly exhausted from the tank body 21. The design of the above-mentioned tee pipe 26 effectively separates the exhaust paths of the hot water and the high-temperature steam, so that they can be independently exhausted, thereby avoiding mutual interference. The temperature of the hot water taken by the user is not affected by the steam, and the high-temperature steam in the tank body 21 can be timely and smoothly exhausted.

[0093] Further, the hot tank assembly 20 further comprises an exhaust pipe 24 connected to the exhaust port 217, which can be fixed to the exhaust port 217 by welding to ensure the firmness and sealing of the connection and prevent steam leakage. The first joint 261 of the tee pipe 26 is sleeved on the exhaust pipe 24 to form a stable and reliable sleeving relationship, and the gap between the hot water outlet pipe 27 and the inner wall of the exhaust pipe 24 is in communication with the third joint 263 of the tee pipe 26. In this way, the high-temperature steam generated during the heating of the hot tank first flows along the gap between the hot water outlet pipe 27 and the inner wall of the exhaust pipe 24, and then smoothly discharges out of the tank body 21 through the communicated third joint 263.

[0094] Please refer to Figure 10 and Figure 11 , Figure 10 the structure diagram of the condensing pipe 28 and the third joint 263 provided in the embodiment of the present application; Figure 11 the internal structure diagram of the condensing pipe 28 and the third joint 263 provided in the embodiment of the present application.

[0095] In some embodiments, the hot tank assembly 20 further comprises a condensing pipe 28, which has a condensing cavity 280, and the third joint 263 is sleeved in the condensing cavity 280. Since the high-temperature steam generated during the heating of the hot tank will subsequently be discharged out through the third joint 263, and the high-temperature steam has a high temperature, direct discharge can easily cause scalding hazards and bring safety risks to users. The embodiment sets the condensing pipe 28 to cool the high-temperature steam flowing through the third joint 263 by using the condensing cavity 280 inside the condensing pipe 28. When the high-temperature steam enters the condensing cavity 280 through the third joint 263, it exchanges heat with the cooling water in the condensing cavity 280, and the heat is transferred out, so that the temperature of the steam is reduced, effectively avoiding the scalding problem caused by the direct discharge of high-temperature steam, and greatly improving the safety of the use of the equipment.

[0096] Further, the condensing pipe 28 further has a water inlet joint 281 and a water outlet joint 282 respectively communicating with the condensing cavity 280, and the water outlet joint 282 is in communication with the water inlet port 214 of the tank body 21. The cooling water can be pure water filtered from the filtering assembly 50. This way of using the filtered pure water as cooling water not only ensures the purity of the cooling water and avoids pollution to the inside of the equipment, but also fully utilizes the existing resources of the equipment. The pure water enters the condensing cavity 280 from the water inlet joint 281, exchanges heat with the high-temperature steam in the condensing cavity 280, and its temperature rises after absorbing the heat of the steam, and then flows out from the water outlet joint 282 and enters the heating cavity 201 through the water inlet port 214. In this way, the heat of the high-temperature steam is utilized to some extent, and the energy utilization efficiency of the entire equipment is improved.

[0097] Further, the water outlet joint 282 is higher than the water inlet joint 281, and the water inlet joint 281 and the water outlet joint 282 are arranged diagonally. This layout makes the flow path of the cooling water in the condensation cavity 280 longer and more uniform, increases the contact area of the cooling water with the high-temperature steam, and thus improves the condensation effect. Compared with simple parallel arrangement or other conventional layouts, diagonal arrangement allows the cooling water to flow fully in the condensation cavity 280, more comprehensively absorbs the heat of the high-temperature steam, and ensures that the steam discharged from the third joint 263 is cooled more fully, further reducing the risk of burns.

[0098] Please continue to refer to Figure 7 The hot tank assembly 20 of the embodiment further includes a detection assembly 23 for detecting the water level in the heating cavity 201, which includes a high-water-level probe 233 and a low-water-level probe 234. The high-water-level probe 233 and the low-water-level probe 234 are arranged at intervals on the tank top cover 212 and extend into the heating cavity 201.

[0099] The high-water-level probe 233 and the low-water-level probe 234 are arranged independently at intervals on the tank top cover 212. Since in a humid environment, water is easy to form a water film on the surface of an object, if the distance between the probes is too close or the layout is unreasonable, the water film may cause a short circuit between the two probes, thereby affecting the accuracy and reliability of water level detection. By being arranged independently at intervals, the formation of a conductive path between the two probes by the water film is effectively avoided, ensuring that they can accurately detect water level changes respectively and improving the accuracy and stability of water level detection.

[0100] Further, the end of the high-water-level probe 233 is higher than the heating element 22, and the low-water-level probe 234 is lower than the highest position of the heating element 22. The above position design is mainly used to prevent the hot tank assembly 20 from dry burning. When the water level rises to the position of the high-water-level probe 233, it indicates that the water in the heating cavity 201 has reached a high level, at which time the control system can control the water inlet operation according to the signal fed back by the high-water-level probe 233, to avoid excessive water overflow and the like. When the water level drops to the position of the low-water-level probe 234, it means that the water in the heating cavity 201 has reached a low level, close to the critical state that may cause the heating element 22 to dry burn. At this time, the low-water-level probe 234 will send a signal to the control system in time, and the control system will stop the heating work of the heating element 22 immediately after receiving the signal, thereby effectively preventing the heating element 22 from dry burning without water coverage and protecting the safety of the heating element 22 and the entire hot tank assembly 20.

[0101] In some embodiments, the net heat all-in-one machine of the embodiment can also realize the function of allowing a user to obtain a set temperature water temperature.

[0102] Specifically, the filter assembly 50 of the embodiment further comprises a pure water outlet pipe, one end of which is connected to the pure water outlet of the RO filter core, and the other end has two branches, one of which delivers pure water into the heating cavity 201, and the other of which delivers pure water to the booster pump and the faucet and meets the hot water outlet pipe 27 at the faucet.

[0103] The heat purification all-in-one machine further comprises a booster pump, a faucet, a first temperature sensor, a second temperature sensor, and a controller.

[0104] The booster pump is connected to the pure water outlet pipe and outputs different pure water flow rates by adjusting its duty cycle to control the operating power, which can be determined by the warm water level selected by the user.

[0105] The faucet, as a water terminal, is used to receive pure water from the pure water outlet pipe and hot water from the hot water outlet pipe 27 and mix them to form warm water at a set temperature.

[0106] The first temperature sensor can be installed on the tank 21 or the hot water outlet pipe 27 and is used to monitor the temperature of the hot water in the heating cavity 201 and feed back the data to the controller.

[0107] The second temperature sensor is installed on the pure water outlet pipe and is used to detect the temperature of the pure water in the pure water outlet pipe and feed back the data to the controller.

[0108] The controller is used to receive the data of the first temperature sensor and the second temperature sensor and control the operating power of the booster pump and the booster pump based on the temperature data to adjust the flow rates of the hot water and the pure water and finally form water at the temperature set by the user at the faucet. In the embodiment, the controller controls the operating power of the booster pump and the booster pump by controlling the duty cycle of the booster pump and the booster pump.

[0109] For example, the user selects a specific warm water level on the operation interface of the heat purification all-in-one machine according to the demand for water temperature, such as the common 45℃ or 55℃, etc.

[0110] When the user selects the 45℃ warm water level, the duty cycle of the booster pump is set to 85%; and when the user selects the 55℃ warm water level, the duty cycle of the booster pump is set to 75%. By adjusting the duty cycle, the booster pump can deliver pure water to the faucet at a corresponding flow rate. The adjustment of the duty cycle actually controls the working time ratio of the booster pump and thus controls the flow rate of the pure water to ensure that there is an appropriate amount of low-temperature pure water participating in the mixing process.

[0111] The first temperature sensor continuously monitors the temperature of the hot water in the heating cavity 201 while the booster pump starts to deliver the pure water. The second temperature sensor synchronously detects the temperature of the pure water in the pure water outlet pipe. The two temperature sensors obtain the temperature data in real time and transmit them to the controller, providing temperature data for the subsequent calculation and control of the duty cycle of the water pump 30.

[0112] After receiving the detected values of the pure water temperature and the hot water temperature, the controller calculates the required duty cycle of the water pump 30 according to the internal preset control algorithm. According to the calculated duty cycle of the water pump 30, the controller controls the water pump 30 to deliver hot water to the faucet at a corresponding hot water flow rate. In this way, the flow rate of the hot water can be matched with the determined flow rate of the pure water to achieve the user-set temperature after mixing at the faucet.

[0113] The pure water delivered from the pure water outlet pipe and the hot water delivered from the hot water outlet pipe 27 meet and mix fully at the faucet. Due to the adjustment of the flow rates of the pure water and the hot water by controlling the duty cycles of the booster pump and the water pump 30 in the previous steps, the two can form warm water at the set temperature according to the heat transfer and mixing principle when mixed. For example, at the 45°C warm water level, the appropriate flow rate of the pure water and the corresponding flow rate of the hot water are mixed to finally output warm water at 45°C stably at the faucet, thereby meeting the user's demand.

[0114] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hot tank assembly, characterized in that, include: The tank body has a heating chamber and an inlet and an outlet respectively connected to the heating chamber; as well as A heating element is disposed inside the heating chamber and extends spirally toward the bottom of the tank without contacting the bottom of the tank. The two ends of the spiral heating element are parallel to each other, and the two ends extend out of the tank and are installed on the same generatrix of the tank.

2. The hot tank assembly according to claim 1, characterized in that, The water outlet is higher than the bottom of the tank.

3. The hot tank assembly according to claim 1, characterized in that, The water outlet is not lower than the lowest position of the heating element in the height direction.

4. The hot tank assembly according to claim 1, characterized in that, It also includes a water pump and a hot water outlet pipe, wherein the water pump's inlet is connected to the water outlet; One end of the hot water outlet pipe is connected to the drain outlet of the water pump, and the other end passes through the heating chamber and at least partially overlaps with the heating element in the height direction.

5. The hot tank assembly according to claim 4, characterized in that, The hot water outlet pipe extends from the bottom of the tank into the heating chamber and exits from the top of the tank.

6. The hot tank assembly according to claim 5, characterized in that, The tank is provided with an exhaust port at the top, and the hot water outlet pipe extends out from the exhaust port, with a gap between the hot water outlet pipe and the wall of the exhaust port.

7. The hot tank assembly according to claim 6, characterized in that, It also includes a T-connector, which has a first connector, a second connector and a third connector that are connected to each other, wherein the first connector is directly opposite the second connector and the inner diameter of the first connector is larger than the inner diameter of the second connector; The first connector is connected to the exhaust port, and the hot water outlet pipe passes through the first connector and is sealed to the inner wall of the second connector, so that the hot water outlet pipe communicates with the second connector and the first connector is sealed to the second connector; The gap between the hot water outlet pipe and the wall of the exhaust port is connected to the third connector.

8. The hot tank assembly according to claim 7, characterized in that, It also includes an exhaust pipe connected to the exhaust port, a hot water outlet pipe passing through the exhaust pipe, and a gap between the hot water outlet pipe and the inner wall of the exhaust pipe. The first connector is sleeved on the exhaust pipe, and the gap between the hot water outlet pipe and the inner wall of the exhaust pipe communicates with the third connector.

9. The hot tank assembly according to claim 7, characterized in that, It also includes a condenser tube having a condensation chamber, and the third connector passes through the condensation chamber.

10. The hot tank assembly according to claim 9, characterized in that, The condenser tube also has an inlet connector and an outlet connector that are respectively connected to the condenser chamber, and the outlet connector is connected to the inlet connector.

11. The hot tank assembly according to claim 10, characterized in that, The water outlet connector is higher than the water inlet connector and is diagonally positioned opposite the water inlet connector.

12. The hot tank assembly according to claim 1, characterized in that, The spiral centerline of the heating element coincides with the central axis of the tank.

13. The hot tank assembly according to any one of claims 1 to 12, characterized in that, It also includes a detection component for detecting the water level in the heating chamber, the detection component including a high water level probe and a low water level probe, the high water level probe and the low water level probe being spaced apart at the top of the tank and extending into the heating chamber.

14. The hot tank assembly according to claim 13, characterized in that, The high water level probe is positioned above the heating element, while the low water level probe is positioned below the highest point of the heating element.

15. A combined air purifier and heater, characterized in that, include: The housing assembly has a hot tank cavity and a filter element cavity; A filter assembly is installed in the filter cartridge cavity and has a raw water inlet and a pure water outlet; as well as The hot tank assembly as described in any one of claims 1 to 14 is installed in the hot tank cavity, and the water inlet is connected to the pure water outlet.

16. The integrated air purifier and heater according to claim 15, characterized in that, The hot tank assembly also includes: A water pump, the pumping port of which is connected to the outlet; The hot water outlet pipe is connected to the drain outlet of the water pump; The filtering component includes: The filter element has a raw water inlet and a pure water outlet; A pure water outlet pipe is connected to the pure water outlet. The integrated air purifier and heating unit also includes: A booster pump is connected to the pure water outlet pipe; A faucet, connecting the pure water outlet pipe and the hot water outlet pipe; A first temperature sensor is used to detect the temperature inside the heating chamber; A second temperature sensor is used to detect the temperature in the pure water outlet pipe; and The controller is used to receive the detection values ​​from the first temperature sensor and the second temperature sensor, and control the operating power of the water pump and the booster pump to generate water at a set temperature at the faucet.

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