A water heater

Abstract

A water heater, relating to the field of water heaters, is disclosed to address the problem of high sealing performance and significant leakage risks associated with thermostatic piping installed at the bottom of the water heater. The water heater includes an inner tank, an inlet pipe, an outer pipe, and an inner tube. The inner tank has a water storage chamber. One end of the inlet pipe is connected to the inlet of the water storage chamber, and the other end is connected to a water supply pipe. The outer pipe is installed inside the water storage chamber, with its first end fixed to the inner wall of the chamber and its second end closed. A first inlet and a second inlet are provided on the side wall of the outer pipe, with the first inlet located above the second inlet. The inner tube is installed inside the water storage chamber, and the outer pipe is sleeved on top of the inner tube. The first end of the inner tube is connected to the outlet of the water storage chamber, and its second end is closed. A gap exists between the inner and outer pipes, and a third inlet is provided on the side wall of the inner tube. This application allows for the direct installation of the inner and outer pipes within the inner tank, mixing water within the inner tank and discharging thermostatic water, thus preventing leakage of the mixed water outside the inner tank.

Description

Technical Field

[0001] This application relates to the field of water heaters, and more particularly to a water heater. Background Technology

[0002] As people's living standards improve, thermostatic electric water heaters are gaining increasing recognition and use. These heaters achieve a constant water temperature by incorporating electronic or mechanical thermostatic valves at the inlet and outlet, thus enhancing user convenience.

[0003] Existing thermostatic electric water heaters include a cold water inlet pipe, a hot water outlet pipe, a thermostatic valve, a connecting pipe, and a thermostatic outlet pipe. The thermostatic valve has two inlets and one outlet. The hot water outlet pipe is connected to one inlet of the thermostatic valve. The cold water inlet pipe is connected to the connecting pipe through a diverter, and further connected to the other inlet of the thermostatic valve. The thermostatic outlet pipe is connected to the outlet of the thermostatic valve to allow thermostatic water to flow out.

[0004] However, thermostatic valves need to connect to both the cold water inlet and hot water outlet pipes of the electric water heater simultaneously. Furthermore, a connecting pipe needs to be added between the thermostatic valve and the cold water inlet pipe, allowing cold and hot water to mix within the valve. This not only occupies limited space at the bottom of the machine, but also requires high sealing standards between the multiple pipes and components, leading to a significant risk of leakage. Current thermostatic valves frequently malfunction when mixing water at a constant temperature, resulting in low reliability. Therefore, a new type of thermostatic water heater is needed. Summary of the Invention

[0005] This application provides a water heater to solve the problem of high risk of leakage when the water inside and outside the tank of a constant temperature water heater is mixed.

[0006] This application provides a water heater, including an inner tank, an inlet pipe, an outer pipe, and an inner tube. The inner tank has a water storage cavity inside. One end of the inlet pipe is connected to the inlet of the water storage cavity, and the other end is used to connect to a water supply pipeline. The outer pipe is disposed in the water storage cavity, with its first end fixed to the inner wall of the water storage cavity and its second end closed. A first water inlet and a second water inlet are provided on the side wall of the outer pipe, with the first water inlet located above the second water inlet. The inner tube is disposed in the water storage cavity, and the outer pipe is sleeved on the inner tube. The first end of the inner tube is connected to the outlet of the water storage cavity. The second end of the inner tube is closed. There is a gap between the inner tube and the outer pipe, and a third water inlet is provided on the side wall of the inner tube.

[0007] In this application, both the outer and inner pipes are located within the water storage chamber of the inner tank. Water is injected into the third inlet on the side wall of the inner pipe through the first and second inlets on the outer pipe. Because the first and second inlets are arranged vertically, the density of liquid water decreases as the temperature rises, causing the water in the storage chamber to gradually increase in temperature from bottom to top. At this point, the first and second inlets can respectively introduce higher-temperature water and lower-temperature water into the inner pipe, allowing them to mix within the inner pipe before flowing out through the first end of the inner pipe. This process, carried out within the water storage chamber, avoids occupying too much space in the lower part of the inner tank and eliminates the high sealing requirements and high costs associated with connecting hot and cold water pipes to the inner pipe, thus avoiding the risk of leakage during use.

[0008] In some embodiments of this application, the water heater further includes a driving component, which is disposed on the outside of the inner tank and is used to drive relative movement between the inner tube and the outer tube; a baffle is disposed inside the third water inlet, which is fixedly disposed on the inner wall of the outer tube and divides the third water inlet into a first sub-water inlet and a second sub-water inlet, wherein the first sub-water inlet is connected to the first water inlet and the second sub-water inlet is connected to the second water inlet.

[0009] The driving component drives the relative movement between the inner and outer pipes, thereby causing the baffle to move, adjusting the size of the first and second sub-inlets, adjusting the ratio of water injected into the inner pipe through the first and second inlets, and adjusting the temperature of the mixed water in the inner pipe.

[0010] In some embodiments of this application, the first sub-inlet and the second sub-inlet are circumferentially distributed around the inner tube; the driving member is used to drive the inner tube and the outer tube to rotate relative to each other around the inner tube in a circumferential manner, so as to adjust the aperture of the first sub-inlet and the second sub-inlet by means of a baffle.

[0011] The driving component drives the relative rotation between the inner and outer pipes, thereby causing the baffle to rotate relative to the third inlet, adjusting the size of the first and second sub-inlets, and thus adjusting the ratio of water injected into the inner pipe by the first and second inlets, and adjusting the temperature of the mixed water in the inner pipe.

[0012] In some embodiments of this application, the first sub-inlet and the second sub-inlet are distributed along the axial direction of the inner tube; the driving member is used to drive the inner tube and the outer tube to slide relative to each other along the axial direction of the inner tube, so as to adjust the aperture of the first sub-inlet and the second sub-inlet by means of a baffle.

[0013] The driving component drives the relative sliding between the inner and outer pipes, thereby causing the baffle to slide relative to the third inlet, adjusting the size of the first and second sub-inlets, and thus adjusting the ratio of water injected into the inner pipe by the first and second inlets, and adjusting the temperature of the mixed water in the inner pipe.

[0014] In some embodiments of this application, the water heater further includes a connector disposed on the outside of the inner tank and fixed relative to the inner tank; a first end of the inner tube extends out of the outside of the inner tank, the first end of the inner tube is fixedly connected to the connector, and the inner tube communicates with the water outlet on the connector; a drive is fixed on the connector, and the output shaft of the drive is fixedly connected to the first end of the inner tube.

[0015] The connector is located outside the inner tank, and its outlet is connected to the inner pipe, allowing the connector to discharge constant temperature water. The drive unit is fixedly mounted on the connector, and its output shaft is fixedly connected to the first end of the inner pipe. This ensures that while the inner pipe smoothly outputs constant temperature water to the connector, the drive unit drives the inner pipe to move, adjusting the ratio of cold and hot water entering the inner pipe, so that the connector can output water at a constant temperature.

[0016] In some embodiments of this application, the water heater further includes a temperature sensing element disposed at the outlet of the connector for detecting the temperature of the discharged water. The temperature sensing element can monitor the outlet water temperature of the connector in real time, thereby achieving feedback regulation, causing the drive component to perform corresponding actions according to the corresponding temperature, so that the outlet water temperature is adjusted in a timely manner to maintain a relatively constant temperature.

[0017] In some embodiments of this application, the second end of the inner tube extends beyond the outer side of the inner tank, and the output shaft of the drive component is fixedly connected to the second end of the inner tube. The extension of the second end of the inner tube outside the inner tank and its connection to the drive component ensures that the inner tube smoothly outputs constant-temperature water while simultaneously allowing the drive component to move the inner tube, adjusting the ratio of cold and hot water entering the inner tube, thus enabling the connector to output water at a constant temperature.

[0018] In some embodiments of this application, the water heater further includes a connecting pipe, which is fixedly mounted on the outer pipe. The first end of the connecting pipe is connected to the first water inlet, and the second end of the connecting pipe is connected to the first sub-water inlet.

[0019] The connecting pipe installed on the outer pipe can connect the first water inlet and the first sub-water inlet, so that the water from the first water inlet can directly enter the first sub-water inlet. At the same time, the water from the second water inlet enters the second sub-water inlet through the gap between the inner pipe and the outer pipe. The water from the first water inlet and the water from the second water inlet do not come into contact between the inner pipe and the outer pipe, but mix only in the inner pipe, and then flow out through the first end of the inner pipe.

[0020] In some embodiments of this application, multiple third water inlets and baffles are provided, and the multiple third water inlets and multiple baffles are arranged in a one-to-one correspondence; the multiple third water inlets are distributed circumferentially around the inner pipe. The multiple third water inlets can not only increase the water inlet velocity in the inner pipe to meet the needs of large water usage, but also reduce the water pressure at each third water inlet, thus protecting the inner pipe.

[0021] In some embodiments of this application, multiple second water inlets are provided, and the multiple second water inlets are distributed circumferentially around the outer pipe. The water flow is transmitted between the second water inlets and the third water inlets through the gap between the inner pipe and the outer pipe. When multiple second water inlets are provided, water can be injected into the gap between the inner pipe and the outer pipe more quickly, so as to quickly replenish the inner pipe with water of lower temperature. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0023] Figure 1 A schematic diagram of an existing constant temperature electric water heater provided for this application.

[0024] Figure 2 This is one of the cross-sectional schematic diagrams of a water heater provided in the embodiments of this application.

[0025] Figure 3 This is one of the schematic diagrams showing the partial connection relationship of a water heater provided in an embodiment of this application.

[0026] Figure 4 This is a second schematic diagram showing the partial connection relationship of a water heater provided in an embodiment of this application.

[0027] Figure 5 This is a second cross-sectional schematic diagram of a water heater provided in an embodiment of this application.

[0028] Figure 6 Provided for the embodiments of this application Figure 5 A magnified view of part A in the diagram.

[0029] Figure 7 One of the top views of the partial connection relationship of the water heater provided in the embodiment of this application.

[0030] Figure 8 This is the third schematic diagram of the partial connection relationship of the water heater provided in the embodiment of this application.

[0031] Figure 9 The fourth schematic diagram of the partial connection relationship of the water heater provided in the embodiment of this application.

[0032] Figure 10 The fifth schematic diagram shows the partial connection relationship of the water heater provided in the embodiments of this application.

[0033] Figure 11 This is the sixth schematic diagram of the partial connection relationship of the water heater provided in the embodiment of this application.

[0034] Figure 12 Provided for the embodiments of this application Figure 5One of the enlarged schematic diagrams of part B in the diagram.

[0035] Figure 13 Provided for the embodiments of this application Figure 5 Partial enlarged schematic diagram of section B.

[0036] Figure 14 This is the seventh schematic diagram of the partial connection relationship of the water heater provided in the embodiment of this application.

[0037] Figure 15 This is a second top view of the partial connection relationship of the water heater provided in an embodiment of this application.

[0038] Figure 16 This is the eighth schematic diagram of the partial connection relationship of the water heater provided in the embodiments of this application.

[0039] Figure 17 The third top view of the partial connection relationship of the water heater provided in the embodiment of this application.

[0040] Figure 18 Fourth top view of the partial connection relationship of the water heater provided in the embodiment of this application.

[0041] Figure 19 This is a schematic diagram showing the location distribution of the second water inlet provided in an embodiment of this application.

[0042] Figure 20 This is the third cross-sectional schematic diagram of a water heater provided in the embodiments of this application.

[0043] Reference numerals: 1-Inner tank; 11-Water storage chamber; 12-Inlet; 13-Outlet; 14-Outer shell; 15-Heating element; 16-Through hole; 17-Water baffle; 18-Drain outlet; 2-Cold water inlet pipe; 21-Hot water outlet pipe; 22-Diverter; 23-Cold water connecting pipe; 24-Thermostatic valve; 25-Thermostatic outlet pipe; 3-Inlet pipe; 4-Inner pipe; 41-Third inlet; 411-Second sub-inlet; 412-First sub-inlet; 42-Baffle; 43-Annular support frame; 431-Water flow opening; 5-Outer pipe; 51-First inlet; 52-Second inlet; 53-Connecting pipe; 531-Baffle notch; 6-Drive component; 61-Drive shaft; 7-Connector; 71-Pipe joint; 72-Outlet pipe; 8-Temperature sensing element. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0048] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0049] Please refer to Figure 1 The existing thermostatic electric water heater includes an inner tank 1, a cold water inlet pipe 2, a hot water outlet pipe 21, a thermostatic valve 24, a cold water connecting pipe 23, and a thermostatic outlet pipe 25. The thermostatic valve 24 has two inlet ports and one outlet port. The hot water outlet pipe 21 is connected to one inlet port of the thermostatic valve 24. The cold water inlet pipe 2 is connected to the cold water connecting pipe 23 through a diverter 22, and further connected to the other inlet port of the thermostatic valve 24. The thermostatic outlet pipe 25 is connected to the outlet port of the thermostatic valve 24 to allow thermostatic water to flow out.

[0050] Please continue to refer to Figure 1However, the thermostatic valve 24 needs to be connected to both the cold water inlet pipe 2 and the hot water outlet pipe 21 of the electric water heater. Furthermore, a cold water connecting pipe 23 needs to be added between the thermostatic valve 24 and the cold water inlet pipe 2, allowing the cold and hot water to mix within the thermostatic valve 24. All of these components are located at the bottom of the electric water heater, which occupies limited space and increases the installation space requirements. Moreover, the high sealing requirements and cost of connecting these multiple pipes and components, coupled with the high water pressure and potential leakage risks due to the two inlet ports and one outlet port on the thermostatic valve 24, cause frequent malfunctions when mixing thermostatic water, resulting in low reliability.

[0051] Please refer to Figure 2 Therefore, this application provides a new water heater, including an inner tank 1, an inlet pipe 3, an outer pipe 5, and an inner pipe 4.

[0052] Please continue to refer to Figure 2 The inner liner 1 has a water storage cavity 11 inside. The inner liner 1 can be made of rust-proof material or the water storage cavity 11 can be coated with an rust-proof coating to prevent the water storage cavity 11 from rusting during use. The inner liner 1 can be cylindrical, cuboid, or other prismatic shapes.

[0053] Please continue to refer to Figure 2 The water inlet pipe 3 can be a metal or non-metal pipe. It is used to inject water into the water storage chamber 11. Therefore, one end of the water inlet pipe 3 can be connected to the water inlet 12 of the water storage chamber 11, and the other end can be connected to the water supply pipeline. The water supply pipeline can be a tap water pipeline or other pressurized pipeline installed by the user to inject water into the water storage chamber 11. The water inlet 12 can be located at the bottom of the inner tank 1 or at other locations within the inner tank 1.

[0054] Please continue to refer to Figure 2 The outer tube 5 is installed inside the water storage cavity 11. The first end of the outer tube 5 is fixed to the inner wall of the water storage cavity 11, and the second end of the outer tube 5 is closed. The outer tube 5 should be completely installed inside the water storage cavity 11. The outer tube 5 can be a straight tube or a bent tube. The material can be metal or non-metal, and it should be a material with good heat resistance and corrosion resistance.

[0055] Please continue to refer to Figure 2 The outer pipe 5 has a first water inlet 51 and a second water inlet 52 on its side wall. The first water inlet 51 is located above the second water inlet 52. "Above" refers to the upper side along the direction of gravity. The outer pipe 5 needs to have a height difference along the direction of gravity so that the first water inlet 51 and the second water inlet 52 can be opened at different heights of the outer pipe 5. Since the higher the temperature of liquid water, the lower its density, a height difference is generated between the first water inlet 51 and the second water inlet 52, which can generate a temperature difference in the water at the first water inlet 51 and the second water inlet 52.

[0056] Please continue to refer to Figure 2 The inner tube 4 is disposed within the water storage cavity 11, with its first end connected to the water outlet 13 of the water storage cavity 11. The water outlet 13 of the water storage cavity 11 is located on the inner liner 1 and can be positioned anywhere on the inner liner 1 except for the water inlet 12. The inner tube 4 can be completely or partially located within the water storage cavity 11. The first end of the inner tube 4 can be connected to the water outlet 13 of the water storage cavity 11, allowing water to exit through the outlet 13, or it can pass through the outlet 13 and allow water to exit through the first end of the inner tube 4. An outer tube 5 is sleeved on the inner tube 4, with a gap between them. The outer tube 5 and the inner tube 4 can be coaxial or non-coaxial, and the length of the outer tube 5 should be less than or equal to the length of the inner tube 4. The second end of the inner tube 4 is closed.

[0057] Please continue to refer to Figure 2 A third water inlet 41 is provided on the side wall of the inner tube 4. The third water inlet 41 can be located at the upper part, middle part or lower part of the water storage cavity 11, so that the third water inlet 41 can be connected to the first water inlet 51 and the second water inlet 52 at the same time; and the third water inlet 41 should be located on the side of the inner tube 4 away from the first end of the inner tube 4, so that the space for water mixing in the inner tube 4 is larger, so that the water is mixed more thoroughly and no obvious temperature difference is generated.

[0058] Please continue to refer to Figure 2 In this application, both the outer pipe 5 and the inner pipe 4 are located within the water storage cavity 11 of the inner liner 1. Water is injected into the third inlet 41 on the side wall of the inner pipe 4 through the first inlet 51 and the second inlet 52 on the outer pipe 5. Since the first inlet 51 and the second inlet 52 are arranged vertically, the density of liquid water decreases as the temperature rises, and the temperature of the water in the water storage cavity 11 gradually increases from bottom to top. At this time, the first inlet 51 and the second inlet 52 can respectively input water with a higher temperature and water with a lower temperature into the inner pipe 4, allowing them to mix within the inner pipe 4 and then flow out through the first end of the inner pipe 4. This process takes place within the water storage cavity 11, which avoids occupying too much space in the lower part of the inner liner 1 and avoids the high sealing requirements and high costs associated with connecting hot and cold water pipes to the inner pipe 4, thus avoiding the risk of leakage during use.

[0059] Please continue to refer to Figure 2 In some examples, an outer shell 14 can be installed on the outer wall of the inner tank 1. The outer shell 14 can be made of plastic or metal, and it is fixedly connected to the inner tank 1. The outer shell 14 can be used by the manufacturer to print relevant parameters, patterns and installation and fixing structures of the water heater, without requiring additional processing of the inner tank 1, thus providing a certain degree of protection for the inner tank 1. At the same time, the outer shell 14 can also provide anti-collision protection for the inner tank 1.

[0060] Please continue to refer to Figure 2 In some examples, the water heater mentioned above is an electric water heater, but it could also be a solar water heater. The inner tank 1 of the water heater should be equipped with a heating element 15, which can be located at the bottom of the water storage chamber 11 to improve the heating efficiency of the heating element 15. The water volume in the water storage chamber 11 should be a relatively constant value. When the water in the water storage chamber 11 is discharged for use, the inlet pipe 3 should inject an equal amount of room temperature water into the water storage chamber 11. Since the temperature of the newly injected room temperature water in the water storage chamber 11 is lower than the temperature of the water in the water storage chamber 11, the newly injected water and the original water in the water storage chamber 11 will still be at a temperature lower than the average water temperature in the water storage chamber 11 and will be located at the bottom of the water storage chamber 11. In the above working state, this part of water will be injected into the second inlet 52 and participate in the mixing of cold water and hot water in the inner pipe 4 (cold water and hot water refer only to water with a temperature difference that enters the inner pipe 4 from the first inlet 51 and the second inlet 52; the lower temperature is interpreted as cold water and the higher temperature is interpreted as hot water).

[0061] Please refer to Figure 3 In the above example, since both the second end of the inner tube 4 and the second end of the outer tube 5 are closed, the space between the inner tube 4 and the outer tube 5 is also in a relatively closed state. When the first end of the inner tube 4 starts to discharge water, water pressure will be generated at the first inlet 51 and the second inlet 52 of the outer tube 5, which will drive the water in the water storage chamber 11 into the outer tube 5, and then into the inner tube 4 and out.

[0062] Please continue to refer to Figure 3 In some examples, the outlet 13 of the water storage chamber 11 can be located at the lower part of the inner liner 1. In this case, the first end of the outer pipe 5 is located at the outlet 13 of the water storage chamber 11 and the outlet 13 is located inside the outer pipe 5. The outer pipe 5 is sealed and fixedly connected to the inner wall of the inner liner 1. The second end of the outer pipe 5 is located at the upper part of the water storage chamber 11, and the second end of the inner pipe 4 is close to the second end of the outer pipe 5. The first end of the inner pipe 4 is connected to the outlet 13 of the water storage chamber 11 so that water can be discharged through the outlet 13. The first inlet 51 is located at the position of the outer pipe 5 close to the second end of the outer pipe 5, the second inlet 52 is located at the position of the outer pipe 5 close to the first end of the outer pipe 5, and the third inlet 41 is located at the position of the inner pipe 4 close to the second end of the inner pipe 4, that is, located close to the second inlet 52. In this case, the space for mixing water in the mixing pipe can be larger and the mixing water can be more uniform.

[0063] Please refer to Figure 4In some other examples, the outlet 13 of the water storage chamber 11 can also be located at the upper part of the inner tank 1. In this case, the first end of the outer pipe 5 is still located at the outlet 13 of the water storage chamber 11, and the second end is located at the bottom of the water storage chamber 11 and is closed. The first end of the inner pipe 4 is connected to the outlet 13 of the water storage chamber 11, and the second end of the inner pipe 4 is close to and closed with the second end of the outer pipe 5. At this time, the first inlet 51 is located near the first end of the outer pipe 5, and the second inlet 52 is located near the second end of the outer pipe 5, so that hot water still enters the first inlet 51 and cold water still enters the second inlet 52. The third inlet 41 is located near the second end of the inner pipe 4, that is, near the second inlet 52. In this way, the mixing area of ​​hot water and cold water can still be larger and the mixing more uniform.

[0064] In some other examples, the third inlet 41 can also be located near the first end of the inner tube 4. In this case, the inner tube 4 does not need to be too long; it is sufficient that the third inlet 41 on the inner tube 4 is connected to both the first inlet 51 and the second inlet 52. In this example, the outer tube 5 still needs to be relatively long so that the first inlet 51 on the outer tube 5 is located at the upper part of the water storage chamber 11, and the second inlet 52 on the outer tube 5 is located at the lower part of the water storage chamber 11. Hot water and cold water are injected into the inner tube 4 simultaneously according to the relationship between the temperature and density of the liquid water, and then the mixed water flows out from the first end of the inner tube 4 as constant temperature water.

[0065] Please refer to Figure 5 In addition, the water heater also includes a drive component 6, which is located on the outside of the inner tank 1 and is used to drive the relative movement between the inner pipe 4 and the outer pipe 5; please refer to Figure 6 A baffle 42 is provided inside the third water inlet 41. The baffle 42 is fixedly installed on the inner wall of the outer pipe 5 and divides the third water inlet 41 into a first sub-water inlet 412 and a second sub-water inlet 411. The first sub-water inlet 412 is connected to the first water inlet 51, and the second sub-water inlet 411 is connected to the second water inlet 52.

[0066] Please continue to refer to Figure 5 and Figure 6 The driving component 6 drives the relative movement between the inner tube 4 and the outer tube 5, thereby causing the baffle 42 to move, adjusting the size of the first sub-inlet 412 and the second sub-inlet, adjusting the ratio of water injected into the inner tube 4 by the first inlet 51 and the second inlet 52, and adjusting the temperature of the mixed water in the inner tube 4.

[0067] Please continue to refer to Figure 5 and Figure 6In some examples, the outer tube 5 is fixedly installed on the inner wall of the inner liner 1, the inner tube 4 is located inside the outer tube 5 and communicates with the outlet 13 of the water storage chamber 11, the driving member 6 is installed on the outer side of the inner liner 1, and the driving shaft 61 of the driving member 6 should be connected to at least one of the inner tube 4 and the outer tube 5 so that relative movement can occur between the inner tube 4 and the outer tube 5.

[0068] Please continue to refer to Figure 6 In some examples, the third water inlet 41 can be a square opening, and the baffle 42 is a square baffle 42. The baffle 42 can divide the third water inlet 41 into the first sub-water inlet 412 and the second sub-water inlet 411 mentioned above. The size of the first sub-water inlet 412 and the second sub-water inlet 411 can be adjusted according to the relative movement between the inner pipe 4 and the outer pipe 5. Since the first sub-water inlet 412 and the second sub-water inlet 411 are respectively connected to the first water inlet 51 and the second water inlet 52, and the water temperature in the water storage chamber 11 will change with the use of the water heater, the water temperature entering the inner pipe 4 at the first sub-water inlet 412 and the second sub-water inlet 411 will change in real time. At this time, by adjusting the size of the first sub-water inlet 412 and the second sub-water inlet 411 mentioned above, the water temperature of the water outlet of the inner pipe 4 can be kept relatively constant.

[0069] Please continue to refer to Figure 5 and Figure 6 In the above example, the first sub-inlet 412 is connected to the first inlet 51, and the second inlet 52 is connected to the second sub-inlet 411. Hot water and cold water are respectively supplied to the first sub-inlet 412 and the second sub-inlet 411. The supply channels for hot water and cold water should be relatively independent to avoid a large amount of water mixing in advance, which would cause the size adjustment of the first sub-inlet 412 and the second sub-inlet 411 to lose its function of regulating the temperature of the mixed water in the inner pipe 4.

[0070] Please continue to refer to Figure 5 and Figure 6 In the example above, as the water in the water storage chamber 11 of the water heater is used, the water temperature at the first inlet 51 will gradually decrease as hot water is used, and the water temperature at the second inlet 52 will decrease as room temperature water is injected into the inlet pipe 3. Therefore, as the water heater is used, the opening size of the first sub-inlet 12 gradually decreases until it is completely closed, and the opening size of the second sub-inlet 12 gradually increases until it is completely open, so that the water temperature in the inner pipe 4 is relatively constant, and the water heater can output constant temperature water.

[0071] Please continue to refer to Figure 5 and Figure 6The constant temperature water output of the water heater can only be satisfied within two time points: from the time when the water temperature at the first inlet 51 is lower than the constant temperature of the constant temperature water to the time when the water temperature at the second inlet 52 is lower than the constant temperature of the constant temperature water. At this time, the water temperature in the inner pipe 4 can be adjusted to the constant temperature of the constant temperature water by adjusting the opening size of the first sub-inlet 412 and the second sub-inlet 411.

[0072] Please refer to Figure 7 Based on this, the first sub-inlet 412 and the second sub-inlet 411 are circumferentially distributed around the inner tube 4; the driving member 6 is used to drive the inner tube 4 and the outer tube 5 to rotate relative to each other around the inner tube 4 in a circumferential manner, so as to adjust the aperture of the first sub-inlet 412 and the second sub-inlet through the baffle 42.

[0073] The driving component 6 drives the relative rotation between the inner tube 4 and the outer tube 5, thereby causing the baffle 42 and the third water inlet 41 to rotate relative to each other, adjusting the size of the first sub-water inlet 412 and the second sub-water inlet, thereby adjusting the ratio of water injected into the inner tube 4 by the first water inlet 51 and the second water inlet 52, and adjusting the temperature of the mixed water in the inner tube 4.

[0074] Please continue to refer to Figure 7 In some examples, the first sub-inlet 412 and the second sub-inlet 411 can be annular openings, and the annular opening is a ring with the axis of the inner tube 4 as the center. The central angle of the third inlet 41 formed by the first sub-inlet 412 and the second sub-inlet 411 should be between 30° and 180°, so as to ensure the strength of the inner tube 4 itself, and allow the third inlet 41 to inject water into the inner tube 4.

[0075] Please refer to Figure 8 In some examples, the drive unit 6 can be a stepper motor, a rotary motor, or a linear motor coupled with a corresponding worm gear, achieving a rotational effect similar to that of the rotary motor described above. The output shaft of the drive unit 6 can be mounted on the inner tube 4, driving the inner tube 4 to rotate along its axis, thus creating a relative rotational effect between the inner tube 4 and the outer tube 5.

[0076] Please continue to refer to Figure 8 Therefore, in this example, the inner tube 4 is rotatably disposed inside the outer tube 5, and the inner tube 4 and the outer tube 5 are coaxially arranged. At this time, the inner tube 4 and the outlet 13 of the water storage chamber 11 should also have a corresponding rotational relationship, and the two can also be sealed and connected by a corresponding rotating joint, so that while the two are rotating relative to each other, the first end of the inner tube 4 can discharge water according to the predetermined water discharge route.

[0077] Please continue to refer to Figure 7 and Figure 8Meanwhile, in this example, the second end of the inner tube 4 and the second end of the outer tube 5 can be in contact, can be rotatably connected, or can be not connected. The inner tube 4 and the outer tube 5 can be further supported and fixed by the annular support frame 43, and the annular support frame 43 should have a water flow opening 431 for water flow so that the water in the second inlet 52 can flow steadily into the second sub-inlet 411.

[0078] Please refer to Figure 7 and Figure 9 In some other examples, the output shaft of the drive unit 6 can be mounted on the outer tube 5. By driving the outer tube 5 to rotate along the axis of the inner tube 4, a relative rotation effect is created between the inner tube 4 and the outer tube 5. Using this method, the size of the first sub-inlet 412 and the second sub-inlet 411 can also be adjusted by the relative rotation between the inner tube 4 and the outer tube 5.

[0079] In some other examples, the number of drive components 6 can be set to two, and the two output shafts of the two drive components 6 can be respectively set on the inner tube 4 and the outer tube 5. In this case, the two drive components 6 can drive the inner tube 4 and the outer tube 5 to rotate differentially around the axis of the inner tube 4, or make the inner tube 4 and the outer tube 5 rotate in different directions, both of which can produce a relative rotation effect between the inner tube 4 and the outer tube 5. Using this method, the purpose of adjusting the size of the first sub-inlet 412 and the second sub-inlet 411 can also be achieved by the relative rotation between the inner tube 4 and the outer tube 5.

[0080] Please continue to refer to Figure 7 In some examples, the baffle 42 can be a solid plate or a hollow plate. The inner tube 4 can adjust the size of the first sub-inlet 412 and the second sub-inlet 411 by rotating the baffle 42 itself.

[0081] Please refer to Figure 10 Based on this, the first sub-inlet 412 and the second sub-inlet 411 are distributed along the axial direction of the inner tube 4; the driving member 6 is used to drive the inner tube 4 and the outer tube 5 to slide relative to each other along the axial direction of the inner tube 4, so as to adjust the aperture of the first sub-inlet 412 and the second sub-inlet through the baffle 42.

[0082] Please continue to refer to Figure 10 The driving component 6 drives the relative sliding between the inner tube 4 and the outer tube 5, thereby causing the baffle 42 and the third water inlet 41 to slide relative to each other, adjusting the size of the first sub-water inlet 412 and the second sub-water inlet, thereby adjusting the ratio of water injected into the inner tube 4 by the first water inlet 51 and the second water inlet 52, and adjusting the temperature of the mixed water in the inner tube 4.

[0083] Please continue to refer to Figure 10In some examples, the inner tube 4 and the outer tube 5 are fitted together, and the inner tube 4 and the outer tube 5 can be coaxial or non-coaxial, and the axes of the inner tube 4 and the outer tube 5 are parallel. When relative sliding occurs between the inner tube 4 and the outer tube 5, the baffle 42 can slide in the third inlet 41, and the size of the first sub-inlet 412 and the second sub-inlet 411 can be adjusted according to the different sliding positions of the baffle 42.

[0084] Please continue to refer to Figure 10 In some examples, the drive motor can be a stepper motor, a linear motor, or a rotary motor combined with a corresponding worm gear combination, which can achieve the same linear motion effect as described above.

[0085] In some examples, the drive shaft 61 of the drive motor is set on the inner tube 4. In this case, the inner tube 4 is slidably set inside the outer tube 5. A corresponding guide frame or other structure can be set between the inner tube 4 and the outer tube 5 to achieve the corresponding sliding effect. The outer tube 5 is fixedly set at the outlet 13 of the water storage chamber 11. A corresponding sliding sleeve can be set on the outlet 13 of the water storage chamber 11. The inner tube 4 is slidably set inside the sliding sleeve to achieve the sliding effect of the inner tube 4.

[0086] Please continue to refer to Figure 10 In this example, the second end of the inner tube 4 should be located inside the outer tube 5, and a large gap should be left between the second end of the inner tube 4 and the second end of the outer tube 5. The height of the gap should be greater than or equal to the length of the third inlet 41 along the axis of the inner tube 4, so that the gap can meet the maximum adjustment limit of the baffle 42 to adjust the first sub-inlet 412 and the second sub-inlet 411.

[0087] Please refer to Figure 11 In some other examples, the output shaft of the drive motor can also be set on the outer tube 5, driving the outer tube 5 to slide, thereby causing relative sliding between the outer tube 5 and the inner tube 4. Alternatively, two drive motors can be set, with the output shafts of the two drive motors respectively set on the inner tube 4 and the outer tube 5, driving the inner tube 4 and the outer tube 5 to slide in the same direction at a differential speed or in opposite directions, both of which can achieve the above-mentioned effect of adjusting the first sub-inlet 412 and the second sub-inlet 411.

[0088] Please refer to Figure 12 In addition, the water heater also includes a connector 7, which is located on the outside of the inner tank 1 and is fixed relative to the inner tank 1; the first end of the inner tube 4 extends out of the outside of the inner tank 1 and is fixedly connected to the connector 7, and the inner tube 4 is connected to the water outlet 13 on the connector 7; the drive 6 is fixed on the connector 7 and the output shaft of the drive 6 is fixedly connected to the first end of the inner tube 4.

[0089] The connector 7 is located outside the inner tank 1, and the outlet 13 of the connector 7 is connected to the inner pipe 4, so that the connector 7 discharges constant temperature water. The drive 6 is fixedly installed on the connector 7, and the output shaft of the drive 6 is fixedly connected to the first end of the inner pipe 4. This ensures that while the inner pipe 4 smoothly outputs constant temperature water to the connector 7, the drive 6 drives the inner pipe 4 to move, adjusting the ratio of cold water and hot water entering the inner pipe 4, so that the connector 7 can output water at a constant temperature.

[0090] Please continue to refer to Figure 12 In some examples, connector 7 should include outlet pipe 72 and pipe joint 71. Pipe joint 71 is fixedly installed at outlet 13 of water storage chamber 11 and is used to connect inner pipe 4 so that inner pipe 4 can slide or rotate under the premise of ensuring a certain degree of sealing. Outlet pipe 72 should also be fixedly installed on pipe joint 71, and outlet pipe 72 and inner pipe 4 should be in a connected relationship to discharge constant temperature water.

[0091] Please continue to refer to Figure 12 In some examples, the drive component 6 should be fixedly mounted at the bottom of the pipe connector 71, and preferably, a corresponding structure for mounting and fixing the drive component 6 should be provided outside the pipe connector 71 to facilitate the installation of the drive component 6. The drive shaft 61 of the drive component 6 should extend into the pipe connector 71 and be connected to the inner tube 4 to control the movement of the inner tube 4. In this case, the inner tube 4 can be completely located inside the inner liner 1 or partially extended outside the inner liner 1, both of which can achieve the connection between the drive component 6 and the inner tube 4.

[0092] Please continue to refer to Figure 12 In some examples, the connector 7 and the outlet 13 can be sealed with sealant or sealing tape to ensure good sealing between the inner liner 1 and the connector 7.

[0093] Please refer to Figure 13 In addition, the water heater also includes a temperature sensing element 8, which is located at the outlet 13 of the connector 7 to detect the temperature of the discharged water. The temperature sensing element 8 can monitor the outlet water temperature of the connector 7 in real time, thereby realizing feedback regulation, causing the drive component 6 to make corresponding actions according to the corresponding temperature, so that the temperature of the outlet 13 can be adjusted in time to maintain a relatively constant temperature.

[0094] Please refer to Figure 13 In some examples, the temperature sensing element 8 can be installed on the outlet pipe 72, on the pipe joint 71, or in the inner pipe 4, so that the temperature sensing element 8 can detect the temperature of the outlet water. The temperature sensing element 8 can be a temperature probe.

[0095] Please continue to refer to Figure 11 and Figure 13In some examples, the temperature sensing element 8 can detect the temperature of the water discharged from the water heater and control the action of the drive component 6 according to the temperature of the discharged water, thereby causing the inner tube 4 to rotate or slide, so that the baffle 42 adjusts the size of the first sub-inlet 412 and the second sub-inlet 411, thereby adjusting the ratio of hot water to cold water in the inner tube 4 and realizing the adjustment of water temperature.

[0096] In some examples, the temperature sensing element 8 can be set to one or multiple, both serving the purpose of detecting water temperature and controlling the drive component 6 to adjust the water temperature. When multiple temperature sensing elements 8 are set, they should be connected to the same controller. The controller should check and average the values ​​of all temperature sensing elements 8 to make the temperature detection more accurate. At the same time, when one data differs significantly from the other data, a corresponding warning or alarm can be issued to indicate that the temperature sensing element 8 is damaged.

[0097] In the example above, when the drive component 6 is damaged, the value of the temperature sensing element 8 may differ significantly from the set temperature of the constant temperature water. In this case, the controller can also issue an alarm or display different signals to determine which specific component is damaged, which can assist the staff in maintenance or the user in self-inspection.

[0098] Please refer to Figure 14 Based on this, the second end of the inner tube 4 extends out of the outer side of the inner liner 1, and the output shaft of the drive component 6 is fixedly connected to the second end of the inner tube 4. The second end of the inner tube 4 extends out of the inner liner 1 and is connected to the drive component 6, which can ensure that the inner tube 4 smoothly outputs constant temperature water while the drive component 6 drives the inner tube 4 to move, adjusting the ratio of cold water and hot water entering the inner tube 4, so that the connector 7 can output water at a constant temperature.

[0099] Please refer to Figure 14 and Figure 15 In some examples, the driving component 6 drives the second end of the inner pipe 4 to rotate or slide, thereby causing relative movement between the inner pipe 4 and the outer pipe 5. This changes the size of the first sub-inlet 412 and the second sub-inlet 411, adjusting the ratio of cold and hot water entering the inner pipe 4 and regulating the outlet temperature of the inner pipe 4. At this time, the second end of the inner pipe 4 should be connected to the second end of the outer pipe 5, and a corresponding sealing structure should be provided on the second end of the outer pipe 5.

[0100] In the above example, the sealing structure at the second end of the outer pipe 5 can be set to be poor. Even if water enters the space between the inner pipe 4 and the outer pipe 5 from the second end of the outer pipe 5 and mixes with the cold water entering the outer pipe 5 from the second inlet 52, the large water flow and fast water velocity will still allow this part of the water to have a large temperature difference with the water entering the outer pipe 5 from the first inlet 51. At the same time, the poor sealing structure is easy to produce, easy to install, and low in cost.

[0101] Please continue to refer to Figure 14 In some examples, when the second end of the inner tube 4 extends outside the inner liner 1, the second end of the inner tube 4 can be located on the upper side or the lower side of the inner liner 1. When the second end of the inner tube 4 is located on the upper side of the inner liner 1, the first end of the inner tube 4 is located at the lower part of the inner liner 1, and the outlet 13 of the water storage cavity 11 is located at the lower part of the inner liner 1. At this time, the inner liner 1 should also have a through hole 16 for the second end of the inner tube 4 to extend out of the inner liner 1. The through hole 16 should be provided with a corresponding sealing structure to prevent dust, insects, etc. from entering the water storage cavity 11 through the gap between the inner tube 4 and the inner liner 1.

[0102] Please refer to Figure 16 In other examples, the driving component 6 can also drive the second end of the outer tube 5 to move, and at this time, the first end of the inner tube 4 is fixedly connected to the outlet 13 of the water storage chamber 11, which can also cause relative rotation or sliding between the inner tube 4 and the outer tube 5, thus achieving the above-mentioned effect. Specifically, the driving component 6 can be used to push out the first end of the inner tube 4, thereby achieving the operation of adjusting the water temperature inside the inner tube 4.

[0103] Please refer to Figure 17 In addition, the water heater also includes a connecting pipe 53, which is fixedly installed on the outer pipe 5. The first end of the connecting pipe 53 is connected to the first water inlet 51, and the second end of the connecting pipe 53 is connected to the first sub-water inlet 412.

[0104] Please continue to refer to Figure 17 The connecting pipe 53 installed on the outer pipe 5 can connect the first water inlet 51 and the first sub-water inlet 412, so that the water from the first water inlet 51 can directly enter the first sub-water inlet 412. At the same time, the water from the second water inlet 52 enters the second sub-water inlet 411 through the gap between the inner pipe 4 and the outer pipe 5. The water from the first water inlet 51 and the water from the second water inlet 52 do not come into contact between the inner pipe 4 and the outer pipe 5, but mix only in the inner pipe 4, and then flow out through the first end of the inner pipe 4.

[0105] Please continue to refer to Figure 17 In some examples, the connecting pipe 53 can be fixedly installed on the outer pipe 5, and the connecting pipe 53 should be provided with a notch for accommodating the baffle 42. The baffle 42 and the connecting pipe 53 together form a channel between the first water inlet 51 and the first sub-water inlet 412, and through this channel, the hot water at the first water inlet 51 does not come into contact with the cold water at the second water inlet 52 before entering the inner pipe 4.

[0106] In some other examples, the connecting pipe 53 can be fixedly installed on the inner pipe 4, and the position of the first water inlet 51 on the outer pipe 5 should correspond to the position of the connecting pipe 53. At the same time, the connecting pipe 53 should also be provided with a corresponding baffle notch 531 to cooperate with the baffle 42 installed on the inner wall of the outer pipe 5 to form the hot water channel described above.

[0107] Please continue to refer to Figure 17 In some examples, the channel between the first inlet 51 and the first sub-inlet 412 is a hot water channel, and the channel between the second inlet 52 and the second sub-inlet 411 is a cold water channel, and the hot water channel and the cold water channel are not connected. In this example, the hot water channel and the cold water channel are blocked by a baffle 42 and a connecting pipe 53. The baffle 42 and the connecting pipe 53 can slide relative to each other, thereby adjusting the size of the first sub-inlet 412 and the second sub-inlet 411. Therefore, the hot water channel and the cold water channel can be connected through the gap between the baffle 42 and the connecting pipe 53, and this does not affect the constant temperature water discharge of the water heater.

[0108] Please continue to refer to Figure 17 In the above example, a high-precision fit can also be set between the baffle 42 and the connecting pipe 53 to avoid the connection between the hot water channel and the cold water channel. However, this precision will lead to inconvenience in the installation and manufacturing of the inner pipe 4 and the outer pipe 5 and high cost. Therefore, although this solution is more effective, it is generally not adopted.

[0109] Please refer to Figure 18 Based on this, multiple third water inlets 41 and baffles 42 are provided, and the multiple third water inlets 41 and multiple baffles 42 are arranged in a one-to-one correspondence; the multiple third water inlets 41 are distributed around the circumference of the inner pipe 4. The multiple third water inlets 41 can not only increase the water inlet speed in the inner pipe 4 to meet the needs of large water usage, but also reduce the water pressure at each third water inlet 41, thus protecting the inner pipe 4.

[0110] In some examples, the number of the third inlet 41 and the baffle 42 can be set to two or three, and they are distributed around the inner pipe 4 in a circumferential manner, which can achieve the above-mentioned effects of increasing the water inlet volume and reducing the water pressure at the inlet 12.

[0111] In some examples, multiple baffles 42 and a third inlet 12 can also be set along the axial direction of the inner pipe 4, which can also achieve the above-mentioned effects of increasing the water flow and reducing the water pressure at the inlet 12.

[0112] Please refer to Figure 19Based on this, multiple second water inlets 52 are provided, and the multiple second water inlets 52 are distributed around the circumference of the outer pipe 5. The water flow between the second water inlets 52 and the third water inlet 41 is transmitted through the gap between the inner pipe 4 and the outer pipe 5. When multiple second water inlets 52 are provided, water can be injected into the gap between the inner pipe 4 and the outer pipe 5 more quickly, so that the inner pipe 4 can be quickly replenished with water of lower temperature.

[0113] In some examples, multiple second inlets 52 are provided, and the multiple second inlets 52 are distributed along the axis of the outer pipe 5. In this case, the multiple second inlets 52 can be distributed on the outer pipe 5 both along the axis and around the axial direction.

[0114] Please refer to Figure 20 In some examples, a water-blocking plate 17 can be installed inside the inner tank 1. The water-blocking plate 17 is located inside the water storage cavity 11 and above the water inlet 12 and the second water inlet 52. The water-blocking plate 17 can reduce the intensity of mixing between the water entering the inner tank 1 and the water in the original water storage cavity 11, so that a larger temperature difference is generated between the cold water entering through the second water inlet 52 and the hot water entering through the first water inlet 51, resulting in a better water mixing effect.

[0115] Please continue to refer to Figure 20 In the above example, when the water heater is first used, there is a lot of hot water in the storage chamber 11. At this time, by means of the above method, when the hot water in the storage chamber 11 flows out, cold water is injected into the inlet 12 at the same time, and the larger part of the cold water is directly introduced into the inner pipe 4 through the second inlet 12, so that the water discharged by the water heater reaches the preset constant temperature more quickly.

[0116] Please continue to refer to Figure 20 In some examples, the water storage chamber 11 is provided with a drain port 18, and a magnesium rod is installed on the inner tank 1. The magnesium rod extends into the drain port 18, and the magnesium rod and the drain port 18 are sealed together. This method can prevent scale from forming inside the inner tank 1, making the water in the water storage chamber 11 cleaner and flowing more smoothly.

[0117] In some other instances, when the water heater uses the aforementioned inner pipe 4 and outer pipe 5 structure within the inner tank 1, the first inlet 51 and the second inlet 52 can also employ corresponding valve structures to directly adjust the water flow rate and allow it to mix before flowing into the inner pipe 4, thus achieving the desired effect of regulating water temperature.

[0118] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0119] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water heater, characterized in that, include: The inner liner has a water storage chamber inside; The water inlet pipe has one end connected to the water inlet of the water storage chamber and the other end used to connect to the water supply pipeline. An outer tube is disposed inside the water storage cavity. The first end of the outer tube is fixed to the inner wall of the water storage cavity, and the second end of the outer tube is closed. A first water inlet and a second water inlet are provided on the side wall of the outer tube, and the first water inlet is disposed above the second water inlet. An inner tube is disposed inside the water storage cavity, and an outer tube is sleeved on the inner tube. The first end of the inner tube is connected to the water outlet of the water storage cavity; the second end of the inner tube is closed; there is a gap between the inner tube and the outer tube, and a third water inlet is provided on the side wall of the inner tube. A driving component is disposed on the outside of the inner liner, and the driving component is used to drive relative movement between the inner tube and the outer tube; A baffle is provided inside the third water inlet. The baffle is fixedly installed on the inner wall of the outer pipe and divides the third water inlet into a first sub-water inlet and a second sub-water inlet. The first sub-water inlet is connected to the first water inlet, and the second sub-water inlet is connected to the second water inlet.

2. A water heater according to claim 1, characterized in that, The first sub-inlet and the second sub-inlet are distributed circumferentially around the inner tube; the driving member is used to drive the inner tube and the outer tube to rotate relative to each other circumferentially around the inner tube, so as to adjust the aperture of the first sub-inlet and the second sub-inlet through the baffle.

3. A water heater according to claim 1, characterized in that, The first sub-inlet and the second sub-inlet are distributed along the axial direction of the inner tube; the driving member is used to drive the inner tube and the outer tube to slide relative to each other along the axial direction of the inner tube, so as to adjust the aperture of the first sub-inlet and the second sub-inlet by means of the baffle.

4. A water heater according to any one of claims 1 to 3, characterized in that, The water heater also includes a connector, which is disposed on the outside of the inner tank and is fixed relative to the inner tank; The first end of the inner tube extends out of the outer side of the inner liner, the first end of the inner tube is fixedly connected to the connector, and the inner tube is connected to the water outlet on the connector; The drive component is fixed to the connector, and the output shaft of the drive component is fixedly connected to the first end of the inner tube.

5. A water heater according to claim 4, characterized in that, The water heater also includes a temperature sensing element, which is located at the outlet of the connector and is used to detect the temperature of the discharged water.

6. A water heater according to any one of claims 1 to 3, characterized in that, The second end of the inner tube extends out of the outer side of the inner liner, and the output shaft of the drive component is fixedly connected to the second end of the inner tube.

7. A water heater according to any one of claims 1 to 3, characterized in that, The water heater also includes a connecting pipe, which is fixedly installed on the outer pipe. The first end of the connecting pipe is connected to the first water inlet, and the second end of the connecting pipe is connected to the first sub-water inlet.

8. A water heater according to any one of claims 1 to 3, characterized in that, Multiple third water inlets and multiple baffles are provided, and the multiple third water inlets and multiple baffles are provided in a one-to-one correspondence; the multiple third water inlets are distributed around the circumference of the inner pipe.

9. A water heater according to any one of claims 1 to 3, characterized in that, Multiple second water inlets are provided, and the multiple second water inlets are distributed around the circumference of the outer pipe.

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