Water tank and humidifier

Abstract

The water tank comprises a tank body, a heating body and a steam guide pipe, a water cavity is formed in the tank body, the heating body is arranged on the bottom wall of the water cavity, the heating body is provided with a heating cavity, the heating cavity is provided with a water inlet and a steam outlet, and the steam guide pipe is arranged in the water cavity. The top face of the heating cavity is open to form the steam outlet, the steam guide pipe is located in the water cavity, the lower end of the steam guide pipe is connected with the bottom wall of the box body and surrounds the heating cavity, the heating cavity is communicated with a pipe cavity of the steam guide pipe, and the water inlet is communicated with the water cavity. The water tank is high in heating efficiency, low in energy consumption and convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of humidifier technology, specifically to a water tank and a humidifier. Background Technology

[0002] A humidifier is a household appliance that increases the humidity in a room. Humidifiers typically have a heating element in their water tank to heat the water and produce steam.

[0003] In related technologies, when the heating element is installed inside the water tank, it is usually roughly parallel to the bottom surface of the water tank or protrudes from the bottom surface of the water tank. This causes the heating element to heat a large volume of water when it is working, increasing energy consumption. Moreover, the scale generated by long-term heating has a large area scattered at the bottom of the water tank, making it inconvenient to clean. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a water tank with high heating efficiency and low energy consumption.

[0005] This utility model embodiment also proposes a humidifier having the above-mentioned water tank.

[0006] The water tank of this utility model embodiment includes: a tank body having a water cavity inside the tank body; a heating element disposed on the bottom wall of the water cavity, the heating element having a heating chamber, the heating chamber having a water inlet and a steam outlet, the top surface of the heating chamber being open to form the steam outlet; and a steam conduit located inside the water cavity, the lower end of the steam conduit being connected to the bottom wall of the tank body and surrounding the heating chamber, the heating chamber communicating with the lumen of the steam conduit, and the water inlet communicating with the water cavity.

[0007] In this embodiment of the water tank, the heating chamber is formed within the heating element. The lower end of the steam conduit surrounds the heating chamber, isolating it from the water chamber. Water from the water chamber enters the heating chamber through the inlet. The heating element heats the water in the heating chamber and generates steam, reducing the amount of water that the heating element needs to heat, thus reducing energy consumption and improving heating efficiency. Furthermore, the scale generated by the heating element is concentrated within the heating chamber, reducing the scale diffusion area, making cleaning easier, and saving time and effort. Steam enters the steam conduit through the steam outlet, reducing the steam diffusion area and increasing the steam flow rate.

[0008] Optionally, the steam outlet and the water inlet are the same opening and are formed by the open top surface of the heating chamber.

[0009] The water tank of this utility model has the same opening for both the steam outlet and the water inlet, which simplifies manufacturing, reduces the processing of the heating element, makes the production of the heating element easier, and also ensures the structural integrity and strength of the heating element.

[0010] Optionally, a water inlet is provided on the peripheral wall of the steam conduit, and the water inlet connects the water cavity and the cavity of the steam conduit.

[0011] In this embodiment of the utility model, the water in the water chamber enters the cavity of the steam conduit through the water supply port, and then enters the heating chamber from the conduit, making the method of supplying water to the heating chamber simple.

[0012] Optionally, at least a portion of the heating element is located outside the water cavity, and at least a portion of the heating cavity is lower than the lowest point of the bottom surface of the water cavity.

[0013] The water tank of this utility model embodiment, through the above-mentioned configuration, ensures that the water in the water chamber can easily flow into the heating chamber through the water supply port. The heating element can only heat the water in the heating chamber, resulting in low energy consumption. Moreover, it increases the utilization rate of the water chamber volume, allowing the water chamber to hold more water, reducing the frequency of users adding water to the water chamber, and improving user satisfaction.

[0014] Optionally, the water tank further includes a liquid level sensor, which is disposed inside the heating chamber and is used to detect the water level inside the heating chamber.

[0015] The water tank in this embodiment of the utility model uses a liquid level sensor to detect the water level in the heating chamber in real time, which makes it easier for users to understand and control the amount of water in the heating chamber. This avoids the situation where the heating element burns dry due to insufficient water in the heating chamber, thus improving safety. In addition, it also avoids the situation where excessive water in the heating chamber leads to increased energy consumption, resulting in low energy consumption.

[0016] Optionally, the bottom of the heating element is provided with a mounting hole, the lower end of the liquid level sensor is detachably and sealedly fitted into the mounting hole, and the upper end of the liquid level sensor extends into the heating chamber.

[0017] In this embodiment of the utility model, the water tank has a liquid level sensor that is detachably fitted into the mounting hole, allowing the liquid level sensor to be installed and removed from the outside of the heating chamber. This makes the installation, removal, and replacement of the liquid level sensor convenient. The liquid level sensor extends into the heating chamber from the bottom of the heating element, and can detect the water level in the heating chamber regardless of the amount of water in the heating chamber, thus improving the accuracy and safety of the detection.

[0018] Optionally, the inner circumferential surface of the mounting hole is provided with an internal thread, the lower end of the liquid level sensor is provided with an external thread, the lower end of the liquid level sensor is threaded into the mounting hole, and a first sealing element is provided in the mounting hole and sleeved on the outer circumference of the liquid level sensor.

[0019] In this embodiment of the utility model, the water tank has a liquid level sensor that is threaded into the mounting hole. The connection method is simple and easy to operate. The first sealing element strengthens the seal between the liquid level sensor and the mounting hole, ensuring that water in the heating chamber does not easily overflow from the gap between the mounting hole and the liquid level sensor, thus improving safety.

[0020] Optionally, the water tank further includes a water inlet valve for controlling the supply of water to the heating chamber. The water inlet valve is connected to the liquid level sensor. The water inlet valve opens when the liquid level sensor detects that the water level in the heating chamber is lower than a first preset water level to supply water to the heating chamber, and closes when the liquid level sensor detects that the water level in the heating chamber is higher than a second preset water level to stop supplying water to the heating chamber.

[0021] In this embodiment of the water tank, when the level sensor detects that the water level in the heating chamber is lower than the first preset water level, the inlet valve can be opened in time to allow water in the water chamber to enter the heating chamber, thus preventing the heating element from burning dry. When the level sensor detects that the water level in the heating chamber is higher than the second preset water level, the inlet valve can be closed in time to prevent water in the water chamber from entering the heating chamber, thereby controlling the amount of water in the heating chamber. This design features low energy consumption, convenient operation, good timeliness, and high safety.

[0022] Optionally, the water tank further includes a pressure plate and a second sealing element. The upper end of the heating element is provided with a flange, the bottom wall of the water cavity is provided with a perforation, the upper end of the heating element fits into the perforation, and the lower end of the heating element extends downward from the perforation.

[0023] The pressure plate is located below the bottom wall of the water cavity. The second seal is located between the pressure plate and the bottom wall of the water cavity. The lower end of the second seal is clamped between the upper surface of the pressure plate and the lower surface of the flange. The upper end of the second seal is located between the inner wall of the perforation and the heating element. The upper end of the second seal extends upward beyond the top surface of the heating element. The upper end of the second seal has a notch that connects the water supply port and the heating cavity.

[0024] The water tank of this utility model embodiment features a second sealing element, which enhances the seal between the heating element and the bottom wall of the water chamber, ensuring that water flowing from the water chamber into the heating chamber does not easily leak out between the heating element and the perforation. The flange extends the extension area of ​​the second sealing element, and the pressure plate and the flange squeeze the lower end of the second sealing element, enhancing the seal between the pressure plate and the flange. This further ensures the sealing effect of the heating element installed in the perforation. In addition, the notch restricts the flow rate of water into the heating chamber, facilitating water volume control.

[0025] The humidifier of this utility model embodiment includes a water tank, a tank cover, and a mist outlet cap as described in any of the above embodiments. The tank cover is used to cover the top of the tank body, and the mist outlet cap is disposed on the tank cover and connected to the upper end of the steam duct.

[0026] The humidifier of this utility model has a fast water tank heating speed, high efficiency and low energy consumption, which makes the humidifier have high mist output efficiency, low energy consumption, and improved user satisfaction. In addition, it has high safety performance. Attached Figure Description

[0027] Figure 1 This is an exploded schematic diagram of the water tank according to an embodiment of the present invention.

[0028] Figure 2 This is a cross-sectional view of the water tank according to an embodiment of the present invention.

[0029] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0030] Figure 4 yes Figure 2 Enlarged schematic diagram of part B.

[0031] Figure 5 This is a schematic diagram of the second sealing element of the water tank in an embodiment of this utility model.

[0032] Figure 6 This is a schematic diagram of the pressure plate of the water tank in an embodiment of this utility model.

[0033] Figure 7 This is a schematic diagram of the heating element of the water tank in an embodiment of this utility model.

[0034] Figure 8 This is a schematic diagram of the first sealing element of the water tank in an embodiment of this utility model.

[0035] Figure 9 This is a schematic diagram of the liquid level sensor of the water tank according to an embodiment of the present invention.

[0036] Figure 10 This is a schematic diagram of the steam pipe of the water tank in an embodiment of this utility model.

[0037] Figure 11 This is a schematic diagram of a humidifier according to an embodiment of the present invention.

[0038] Reference numerals: 100, water tank; 200, humidifier; 1, housing; 11, bottom wall; 111, recess; 12, water cavity; 121, perforation; 13, mechanical cavity; 2, heating element; 21, heating cavity; 211, water inlet (steam outlet); 22, mounting hole; 23, protrusion; 24, flange; 3, steam conduit; 31, pipe cavity; 32, water supply port; 4, level sensor; 41, sensor body; 42, mounting part; 421, extension section; 51, first seal; 52, second seal; 521, notch; 6, water inlet valve; 7, base; 8, pressure plate; 9, housing cover; 10, mist outlet cap. Detailed Implementation

[0039] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figure 1-11 As shown, embodiments of this utility model provide a water tank and a humidifier having the water tank. It is understood that the water tank of this utility model embodiment is not limited to use in humidifiers, but can also be used in other devices and occasions with similar needs.

[0041] The water tank of this utility model embodiment will be described first below.

[0042] like Figure 1-2 As shown, the water tank 100 of this embodiment includes a tank body 1, a heating element 2, and a steam conduit 3. The tank body 1 has a water cavity 12. The heating element 2 is disposed on the bottom wall 11 of the water cavity 12. The heating element 2 has a heating chamber 21, which has a water inlet 211 and a steam outlet. The top surface of the heating chamber 21 is open to form a steam outlet; for example, the top surface of the heating element 2 is recessed downwards to form the heating chamber 21. The steam conduit 3 is located inside the water cavity 12. The lower end of the steam conduit 3 is connected to the bottom wall 11 of the tank body 1 and surrounds the heating chamber 21. The heating chamber 21 communicates with the lumen 31 of the steam conduit 3. The water inlet 211 communicates with the water cavity 12 so that water from the water cavity 12 flows into the heating chamber 21 through the water inlet 211.

[0043] In this embodiment of the water tank, the heating chamber 21 is formed inside the heating element 2. The lower end of the steam conduit 3 surrounds the heating chamber 21 and is tightly connected to the bottom wall 11 to isolate the heating chamber 21 from the water chamber 12. Water from the water chamber 12 enters the heating chamber 21 through the water inlet 211, allowing the heating element 2 to heat the water in the heating chamber 21 and generate steam. This reduces the amount of water that the heating element 2 needs to heat, lowers energy consumption, and improves heating efficiency. Furthermore, the scale generated by the heating element 2 when heating water can be concentrated inside the heating chamber 21, reducing the scale buildup area, facilitating cleaning, and saving time and effort. The steam generated inside the heating chamber 21 directly enters the steam conduit 3 through the steam outlet, reducing the steam diffusion area and increasing the steam flow rate.

[0044] Optionally, such as Figure 2 As shown, the steam outlet and water inlet 211 are the same opening and are formed by the open top surface of the heating chamber 21. Specifically, both the steam outlet and water inlet 211 are formed on the top surface of the heating chamber 21, which simplifies manufacturing, reduces the processing of the heating element 2, makes the production of the heating element 2 easier, and also ensures the structural integrity and strength of the heating element 2.

[0045] Optionally, such as Figure 3 As shown, a water inlet 32 ​​is provided on the peripheral wall of the steam conduit 3, which connects the water chamber 12 and the cavity 31 of the steam conduit 3. Specifically, the water inlet 32 ​​is located at the lower end of the steam conduit 3. Water in the water chamber 12 can enter the cavity 31 of the steam conduit 3 through the water inlet 32, and then enter the heating chamber 21 from the cavity 31, making the method of supplying water to the heating chamber 21 simple.

[0046] Optionally, such as Figure 2 As shown, at least a portion of the heating element 2 is located outside the water cavity 12, and at least a portion of the heating cavity 21 is below the lowest point of the bottom surface of the water cavity 12.

[0047] Specifically, such as Figure 2 As shown, the bottom wall 11 of the water cavity 12 has a downwardly protruding recess 111. The heating element 2 is disposed in the recess 111 of the bottom wall 11. The top surface of the heating element 2 is roughly flush with the bottom wall 11 of the water cavity 12, and the lower end of the heating element 2 is located below the bottom wall 11 of the water cavity 12. The water inlet 32 ​​is located above the top surface of the heating element 2. When water is supplied to the heating chamber 21 through the water inlet 32, it ensures that the water in the water cavity 12 can easily flow into the heating chamber 21 through the water inlet 32, ensuring that the heating element 2 can only heat the water in the heating chamber 21, resulting in low energy consumption. In addition, the utilization rate of the water cavity 12's volume is increased, allowing the water cavity 12 to hold more water, reducing the frequency of users adding water to the water cavity 12, and improving user satisfaction.

[0048] Optionally, such as Figure 1-2As shown, the water tank 100 also includes a liquid level sensor 4, which is located inside the heating chamber 21 and is used to detect the water level inside the heating chamber 21.

[0049] Specifically, the water level in the heating chamber 21 is detected in real time by the liquid level sensor 4, which makes it easier for users to understand and control the amount of water in the heating chamber 21. This avoids the situation where the heating element 2 burns dry due to insufficient water in the heating chamber 21, thus improving safety. In addition, it also avoids the situation where excessive water in the heating chamber 21 leads to increased energy consumption, resulting in low energy consumption.

[0050] Optionally, such as Figure 4 As shown, the bottom of the heating element 2 is provided with a mounting hole 22, the lower end of the liquid level sensor 4 is detachably and sealedly fitted into the mounting hole 22, and the upper end of the liquid level sensor 4 extends into the heating chamber 21.

[0051] Specifically, the mounting hole 22 extends through the bottom wall of the heating element 2, and the liquid level sensor 4 is detachably fitted into the mounting hole 22, allowing the liquid level sensor 4 to be installed and removed from the outside of the heating chamber 21, thus making the installation, removal, and replacement of the liquid level sensor 4 convenient. The liquid level sensor 4 extends into the heating chamber 21 from the bottom of the heating element 2, and regardless of the amount of water in the heating chamber 21, the liquid level sensor 4 can detect the water level in the heating chamber 21, improving the accuracy and safety of the detection.

[0052] Optionally, such as Figure 4 As shown, the inner circumferential surface of the mounting hole 22 is provided with an internal thread, and the lower end of the liquid level sensor 4 is provided with an external thread. The lower end of the liquid level sensor 4 is threaded and fitted into the mounting hole 22. The mounting hole 22 is provided with a first sealing member 51 sleeved on the outer circumference of the liquid level sensor 4.

[0053] Specifically, such as Figure 4 As shown, the bottom of the heating element 2 has a protrusion 23, and the mounting hole 22 passes through the protrusion 23. The outer periphery of the mounting hole 22 is stepped along the direction from the bottom surface of the heating cavity 21 to the lower surface of the protrusion 23, and the cross-sectional area of ​​the outer periphery of the mounting hole 22 gradually increases.

[0054] like Figure 4 As shown, the liquid level sensor 4 includes a sensor body 41 and a mounting portion 42. The mounting portion 42 is located at the lower end of the sensor body 41. The external thread of the liquid level sensor 4 is formed on the outer peripheral surface of the mounting portion 42. The lower end of the mounting portion 42 has an outwardly extending extension section 421. The outer peripheral contour of the mounting portion 42 is adapted to the outer peripheral contour of the mounting hole 22. The sensor body 41 passes through the mounting hole 22 and is located inside the heating chamber 21. The mounting portion 42 is threaded into the mounting hole 22 to achieve a threaded engagement between the liquid level sensor 4 and the mounting hole 22. The engagement method is simple and easy to operate.

[0055] The first sealing element 51 is arranged circumferentially around the liquid level sensor 4. The lower end of the first sealing element 51 is located between the upper surface of the mounting part 42 and the inner circumferential surface of the mounting hole 22, and the upper end of the first sealing element 51 is located between the inner circumferential surface of the mounting hole 22 and the outer circumferential surface of the lower end of the sensor body 41. This strengthens the seal between the liquid level sensor 4 and the mounting hole 22, ensuring that water in the heating chamber 21 does not easily overflow from the gap between the mounting hole 22 and the liquid level sensor 4, thus improving safety.

[0056] Optionally, such as Figure 3 As shown, the water tank 100 also includes a water inlet valve 6, which is used to control the water supply to the heating chamber 21. The water inlet valve 6 is connected to the liquid level sensor 4. The water inlet valve 6 opens when the liquid level sensor 4 detects that the water level in the heating chamber 21 is lower than a first preset water level, so as to supply water to the heating chamber 21. The water inlet valve 6 closes when the liquid level sensor 4 detects that the water level in the heating chamber 21 is higher than a second preset water level, so as to stop the water supply to the heating chamber 21.

[0057] Specifically, the inlet valve 6 is located at the water supply port 32 to control the opening and closing of the water supply port 32. The first preset water level is lower than the second preset water level. When the liquid level sensor 4 detects that the water level in the heating chamber 21 is lower than the first preset water level, the liquid level sensor 4 transmits the detection signal to the inlet valve 6. The inlet valve 6 can open the water supply port 32 in time so that the water in the water chamber 12 can enter the heating chamber 21 through the water supply port 32, thus preventing the heating element 2 from burning dry.

[0058] When the level sensor 4 detects that the water level in the heating chamber 21 is higher than the second preset water level, the level sensor 4 transmits the detection signal to the water inlet valve 6. The water inlet valve 6 can close the water supply port 32 in time to prevent the water in the water chamber 12 from continuing to enter the heating chamber 21, thereby controlling the amount of water in the heating chamber 21. It has low energy consumption, is easy to operate, has good timeliness, and is highly safe.

[0059] Optionally, such as Figure 3 As shown, the bottom wall 11 of the water cavity 12 is provided with a through hole 121, which penetrates the bottom wall 11 along its thickness direction. The upper end of the heating element 2 fits into the through hole 121, and the lower end of the heating element 2 extends downward from the through hole 121. Specifically, the water tank 100 also includes a base 7, which is located at the lower end of the tank body 1. The bottom wall 11 divides the tank body 1 into a water cavity 12 located above the bottom wall 11 and a mechanical cavity 13 located below the bottom wall 11. The lower end of the heating element 2 is located in the mechanical cavity 13.

[0060] like Figure 2-3As shown, the water tank 100 also includes a pressure plate 8 and a second sealing member 52. The pressure plate 8 is sleeved on the outer peripheral surface of the heating element 2 and located below the bottom wall 11 of the water cavity 12. The second sealing member 52 is located between the pressure plate 8 and the bottom wall 11 of the water cavity 12, which strengthens the seal between the heating element 2 and the bottom wall 11 of the water cavity 12, ensuring that the water flowing from the water cavity 12 into the heating cavity 21 is not easy to flow out between the heating element 2 and the perforation 121.

[0061] The upper end of the second seal 52 is located between the inner wall of the perforation 121 and the heating element 2, and the upper end of the second seal 52 extends upward beyond the top surface of the heating element 2, such as... Figure 5 As shown, the upper end of the second seal 52 is provided with a notch 521, which connects the water supply port 32 and the heating chamber 21. The notch 521 restricts the flow of water into the heating chamber 21 to facilitate water volume control.

[0062] like Figure 3 and Figure 7 As shown, the upper end of the heating element 2 is provided with a flange portion 24, which surrounds the outer periphery of the heating element 2. The lower end of the second sealing member 52 extends along the upper surface, outer peripheral surface and lower surface of the flange portion 24, and abuts against the outer peripheral surface of the heating element 2 located below the flange portion 24. The lower end of the second sealing member 52 is clamped between the upper surface of the pressure plate 8 and the lower surface of the flange portion 24.

[0063] Specifically, the flange portion 24 extends the extension area of ​​the second seal 52. The pressure plate 8 and the flange portion 24 press against the lower end of the second seal 52, strengthening the seal between the pressure plate 8 and the flange portion 24, and further ensuring the sealing effect of the heating element 2 installed in the perforation 121.

[0064] The humidifier according to an embodiment of the present invention is described below.

[0065] like Figure 11 As shown, the humidifier 200 of this utility model embodiment includes a water tank 100, a tank cover 9, and a mist outlet cap 10. The tank cover 9 is detachably installed on the top of the tank cover 9 by means of a snap fastener to cover the top of the tank body 1. The mist outlet cap 10 is provided on the tank cover 9 and is connected to the upper end of the steam conduit 3. The steam generated after the water in the heating chamber 21 is heated flows to the mist outlet cap 10 through the steam conduit 3 and is discharged through the mist outlet cap 10.

[0066] The humidifier of this utility model embodiment has a water tank 100 that heats water quickly, efficiently, and with low energy consumption, resulting in high mist output efficiency and low energy consumption for the humidifier 200, thus improving user satisfaction.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0071] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A water tank, characterized in that, include: The box (1) has a water cavity (12) inside; Heating element (2), the heating element (2) is disposed on the bottom wall (11) of the water cavity (12), the heating element (2) has a heating cavity (21), the heating cavity (21) has a water inlet (211) and a steam outlet, and the top surface of the heating cavity (21) is open to form the steam outlet; A steam conduit (3) is located inside the water cavity (12). The lower end of the steam conduit (3) is connected to the bottom wall (11) of the box body (1) and surrounds the heating cavity (21). The heating cavity (21) is connected to the lumen (31) of the steam conduit (3). The water inlet (211) is connected to the water cavity (12).

2. The water tank according to claim 1, characterized in that, The steam outlet and the water inlet (211) are the same opening and are formed by the open top surface of the heating chamber (21).

3. The water tank according to claim 2, characterized in that, The steam conduit (3) has a water inlet (32) on its peripheral wall, and the water inlet (32) connects the water cavity (12) and the cavity (31) of the steam conduit (3).

4. The water tank according to claim 1, characterized in that, At least a portion of the heating element (2) is located outside the water cavity (12), and at least a portion of the heating cavity (21) is below the lowest point of the bottom surface of the water cavity (12).

5. The water tank according to claim 1, characterized in that, The water tank (100) also includes a liquid level sensor (4), which is located in the heating chamber (21) and is used to detect the water level in the heating chamber (21).

6. The water tank according to claim 5, characterized in that, The bottom of the heating element (2) is provided with a mounting hole (22), the lower end of the liquid level sensor (4) is detachably and sealedly fitted in the mounting hole (22), and the upper end of the liquid level sensor (4) extends into the heating chamber (21).

7. The water tank according to claim 6, characterized in that, The inner circumferential surface of the mounting hole (22) is provided with an internal thread, and the lower end of the liquid level sensor (4) is provided with an external thread. The lower end of the liquid level sensor (4) is threaded into the mounting hole (22), and a first sealing element (51) is provided in the mounting hole (22) and sleeved on the outer circumference of the liquid level sensor (4).

8. The water tank according to claim 5, characterized in that, The water tank (100) also includes a water inlet valve (6) for controlling the supply of water to the heating chamber (21). The water inlet valve (6) is connected to the liquid level sensor (4). The water inlet valve (6) opens when the liquid level sensor (4) detects that the water level in the heating chamber (21) is lower than a first preset water level, so as to supply water to the heating chamber (21). The water inlet valve (6) closes when the liquid level sensor (4) detects that the water level in the heating chamber (21) is higher than a second preset water level, so as to stop supplying water to the heating chamber (21).

9. The water tank according to claim 3, characterized in that, The water tank (100) also includes a pressure plate (8) and a second sealing element (52). The upper end of the heating element (2) is provided with a flange (24). The bottom wall (11) of the water cavity (12) is provided with a perforation (121). The upper end of the heating element (2) fits into the perforation (121), and the lower end of the heating element (2) extends downward from the perforation (121). The pressure plate (8) is located below the bottom wall (11) of the water cavity (12). The second seal (52) is located between the pressure plate (8) and the bottom wall (11) of the water cavity (12). The lower end of the second seal (52) is clamped between the upper surface of the pressure plate (8) and the lower surface of the flange (24). The upper end of the second seal (52) is located between the inner wall of the perforation (121) and the heating element (2). The upper end of the second seal (52) extends upward beyond the top surface of the heating element (2). The upper end of the second seal (52) is provided with a notch (521), which connects the water supply port (32) and the heating cavity (21).

10. A humidifier, characterized in that, Includes a water tank (100), a tank cover (9), and a mist outlet cap (10) according to any one of claims 1-9, wherein the tank cover (9) is used to cover the top of the tank body (1), and the mist outlet cap (10) is disposed on the tank cover (9) and connected to the upper end of the steam duct (3).

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