Humidifier

Abstract

Provided in the present application is a humidifier, comprising: a base, which is provided with a first water channel; an atomization assembly, which is mounted on the base, is provided with a mist guide passage in fluid communication with the first water channel, and comprises a heating element adapted to form mist in the mist guide passage; a water tank, which is mounted on the base and is provided with a water chamber in fluid communication with the first water channel; a float, which is located in the first water channel and is adapted to rise and fall with changes in the water level in the first water channel; and a micro switch, which is electrically connected to the heating element and is adapted to switch the heating element on or off as the float rises and falls. The float is arranged in the first water channel of the base, and drives the micro switch to switch status so as to control the heating element to work. When the water level rises, the float drives the micro switch to be switched on, and the heating element works; and when the water level falls, the micro switch is switched off, and the heating element stops working. Therefore, the humidifier controls the working status of the heating element through changes in the water level.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] The present application claims priority to Chinese patent application No. 202310093649.1, filed on January 16, 2023, entitled "Humidifier", which is incorporated herein by reference in its entirety.FIELD

[0002] The present application relates to the field of air humidification, and in particular to a humidifier.BACKGROUND

[0003] With the improvement of people's living standards, the requirements for indoor air comfort are getting higher and higher, requiring that not only indoor air temperature is within a comfortable range, but also humidity is within a comfortable range. In order to further improve comfort, various technologies for air humidification and humidifiers have emerged.BRIEF SUMMARY

[0004] The present application provides a humidifier, in which a float and a micro switch are provided in a first water tray of a base. When a water level is normal, the float may drive the micro switch to be turned on to control operation of a heating member. When water in the first water tray runs out, the water level drops, the micro switch is turned off, and the heating member does not work. By providing the float in the first water tray of the base, the humidifier may realize a function of automatic shutdown when water runs out and immediate startup after water is filled, which effectively improves user's experience.

[0005] A humidifier according to an embodiment of the present application, including: a base provided with a first water tray; an atomization assembly mounted at the base and formed with a mist-guide passage in fluid communication with the first water tray, the atomization assembly including a heating member operable to form mist in the mist-guide passage; a water tank mounted at the base and formed with a water chamber in fluid communication with the first water tray; a float located in the first water tray and operable to rise / fall with change of a water level in the first water tray; and a micro switch electrically connected to the heating member and operable to turn on or turn off the heating member with the rise / fall of the float.

[0006] According to the humidifier of the embodiment of the present application, a float is provided in the first water tray of the base, and the float drives the micro switch to switch a state to control the operation of the heating member. When the water level rises, the float presses against the micro switch and the heating member works. When the water level drops, the micro switch is turned off and the heating member stops working. As such, the humidifier may realize the function of automatic shutdown when water runs out and automatic startup after water is refilled through the change of water level, to avoid a user waiting for too long, prolonging service life of the heating member, and enhancing user's experience.

[0007] According to an embodiment of the present application, the base is formed with a first mounting chamber. The first mounting chamber is mounted with the micro switch located above the float. When the float floats up to lift up the micro switch, the micro switch turns on the heating member. When the float descends and detaches from the micro switch, and the micro switch turns off the heating member.

[0008] According to an embodiment of the present application, a side of the first mounting chamber facing the first water tray is mounted with a waterproof sheath, the float floats up to squeeze the waterproof sheath to deform, and lift up the micro switch, and the float descends and leaves the waterproof sheath.

[0009] According to an embodiment of the present application, a side of the first mounting chamber facing away from the first water tray is mounted with a waterproof cover and the first mounting chamber is formed between the waterproof cover and the waterproof sheath.

[0010] According to an embodiment of the present application, the waterproof sheath is a silicone sheath.

[0011] According to an embodiment of the present application, the first water tray is mounted with a bracket provided with a water-guide hole, the bracket and the first water tray form a lifting chamber of the float, and the float is mounted at the lifting chamber and operable to rise / fall relative to the bracket.

[0012] According to an embodiment of the present application, the atomization assembly includes a boiler mounted at the base, a second mounting chamber is formed between the boiler and the base, and the heating member is fixed to the second mounting chamber; and the base is formed with a second water tray, the heating member is operable to heat water in the second water tray, and the second water tray is in fluid communication with the first water tray and the mist-guide passage.

[0013] According to an embodiment of the present application, a seal ring is provided between the base and the boiler, and the second mounting chamber is formed between the seal ring and the boiler.

[0014] According to an embodiment of the present application, the mist-guide assembly includes a mist-guide housing and a mist-guide tube located in the mist-guide housing, where the mist-guide passage is formed inside the mist-guide tube, and the mist-guide housing is detachably mounted at the base.

[0015] According to an embodiment of the present application, the mist-guide assembly further includes an upper cover mounted at an upper end of the mist-guide tube, where a top plate of the mist-guide housing is formed with an annular spray port, and a mist outlet chamber is formed between the top plate and the upper cover and communicates with the annular spray port and the mist-guide passage.

[0016] According to an embodiment of the present application, a cross-sectional area of the mist-guide passage gradually decreases from bottom to top.

[0017] According to an embodiment of the present application, the base includes: an outer base formed with an accommodation chamber; and a mounting base located at the accommodation chamber, where the mounting base is formed with the first water tray, and provided with a first mounting portion for mounting the water tank and a second mounting portion for mounting the atomization assembly.

[0018] According to an embodiment of the present application, a side wall of the mounting base is provided with a third mounting portion for mounting a knob assembly, where the third mounting portion is provided with a through hole communicating with the accommodation chamber, a bottom of the mist-guide tube is provided with an arc-shaped plate, and the third mounting portion is mounted below the arc-shaped plate.

[0019] According to an embodiment of the present application, the water tank includes a bottom cap provided with a water filling port and a water-guide port, where the water filling port is provided with a seal cap provided with the water-guide port, and the water-guide port is provided with an ejection rod and an elastic reset member; where the water tank has a mounting position located at the base and a dismounting position dismounted from the base; and where in the mounting position, the ejection rod is lifted up, and the water-guide port is in fluid communication with the first water tray; in the dismounting position, the elastic reset member drives the ejection rod to reset, and the ejection rod blocks the water-guide port.

[0020] According to an embodiment of the present application, the bottom cap is formed with a third mounting chamber, and the micro switch and the float are located inside the third mounting chamber.

[0021] According to an embodiment of the present application, the seal cap is a screw cap mounted at the bottom cap and provided with the water-guide port.

[0022] Additional aspects and advantages of the present application will be partially set forth in the following description some of which will be apparent from the following description, or may be learned by practice of the present application.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate solutions in the embodiments of the present application or the related art, the drawings that need to be used in the descriptions of the embodiments or the related art will be briefly described below. The drawings in the following description are only certain embodiments of the present application, and for those skilled in the related art, other drawings may be obtained based on these drawings without any creative work. FIG. 1 is a first schematic structural diagram of a humidifier according to an embodiment of the present application; FIG. 2 is an exploded schematic structural diagram of the humidifier shown in FIG. 1; FIG. 3 is a second schematic structural diagram of a humidifier according to an embodiment of the present application; FIG. 4 is a schematic structural diagram of a mounting base of a humidifier according to an embodiment of the present application; FIG. 5 is a third schematic structural diagram of a humidifier according to an embodiment of the present application; FIG. 6 is a schematic structural diagram of a bracket according to an embodiment of the present application; FIG. 7 is a schematic structural diagram of a float according to an embodiment of the present application; FIG. 8 is a schematic structural diagram of a base and some assemblies according to an embodiment of the present application; FIG. 9 is a fourth schematic structural diagram of a humidifier according to an embodiment of the present application; FIG. 10 is an exploded schematic structural diagram of a base according to an embodiment of the present application; and FIG. 11 is a fifth schematic structural diagram of a humidifier according to an embodiment of the present application.

[0024] Reference numerals: 100: base; 1010: first water tray; 1020: first mounting chamber; 1021: waterproof sheath; 1022: waterproof cover; 1023: wiring hole; 1030: second water tray; 1031: anti-dry burning portion; 110: bracket; 1110: water-guide hole; 1120: water-guide plate; 1130: upper mounting plate; 1140: limit portion; 120: lifting chamber; 130: mist outlet tube; 140: outer base; 1410: accommodation chamber; 150: mounting base; 1510: first mounting portion; 1520: second mounting portion; 1530: third mounting portion; 1531: through hole; 1540: knob assembly; 1541: knob switch; 1542: knob cover; 1543: knob; 160: water passage; 200: atomization assembly; 201: mist-guide passage; 210: mist-guide housing; 2110: top plate; 2120: annular spray port; 220: upper cover; 2210: mist outlet chamber; 230: mist-guide tube; 2310: arc-shaped plate; 240: mist outlet member; 250: boiler; 2510: second mounting chamber; 260: heating member; 261: port; 270: temperature protector; 280: seal ring; 290: heating member bracket; 300: water tank; 301: water chamber; 310: bottom cap; 3110: water filling port; 3120: water-guide port;3130: third mounting chamber; 320: seal cap; 330: ejection rod; 340: elastic reset member; 350: handle; 351: upper handle cover; 352: lower handle cover; 360: silicone ring; 370: ejection rod bracket; 400: float; 410: floating plate; 420: lifting member; 500: micro switch; 510: micro switch bracket. DETAILED DESCRIPTION

[0025] Embodiments of the present application are further described in detail below with reference to the drawings and embodiments. The following embodiments are intended to illustrate the present application, but are not intended to limit the scope of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationships indicated by the terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or component stated must have a particular orientation, or be constructed and operated in a particular orientation, and thus cannot be understood as limitation to the embodiments of the present application. Furthermore, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying a relative importance.

[0027] In the description of embodiments of the present application, it should be noted that, unless otherwise explicitly specified and defined, the terms "connected to" and "connected" shall be understood broadly, for example, it may refer to a fixed connection, a detachable connection, or an integrated connection; it may refer to a mechanical connection or an electric connection; or it may refer to a direct connection or an indirect connection via an intermediate medium. The specific meanings of the terms above in embodiments of the present application may be understood by those skilled in the art in accordance with specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly stated and defined, the first feature being located "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature or the first feature is in indirect contact with the second feature by an intermediate medium. In addition, the first feature being "on," "above" and "over" the second feature may refer to that the first feature is directly above or obliquely above the second feature, or simply refer to that the level of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may refer to that the first feature is directly below or obliquely below the second feature, or simply refer to that the level of the first feature is lower than that of the second feature.

[0029] In the description of the present specification, the description with reference to the terms "one embodiment," "some embodiments," "an example," "specific example," "some examples" and the like, refers to that specific features, structures, materials or characteristics described in combination with an embodiment or an example are included in at least one embodiment or example of the embodiments of the present application. In the present specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this specification, as well as the features of different embodiments or examples, without conflicting each other.

[0030] A traditional mechanical warm mist humidifier on the market controls the machine to shut down due to running out of water using a temperature limiter. When the humidifier runs out of water, the heating member will be drily burned, the temperature will rise, and the temperature limiter will shut down after sensing the temperature rise. When a user refills water, the humidifier needs to wait for the temperature of the heating member to drop before the humidifier may be used normally again. The user waits for a long time for the heating member to cool down, resulting in a poor user experience. Frequent dry burning of the heating member will also affect a service life of the humidifier.

[0031] The humidifier of the present application is described below with reference to FIG. 1 to FIG. 11.

[0032] According to a humidifier of an embodiment of the present application, referring to FIG. 1 to FIG. 3, the humidifier includes a base 100, an atomization assembly 200, a water tank 300, a float 400 and a micro switch 500. The base 100 is provided with a first water tray. The atomization assembly 200 is mounted at the base 100 and formed with a mist-guide passage 201 in fluid communication with the first water tray 1010. The atomization assembly 200 includes a heating member 260 operable to form mist in the mist-guide passage 201. The water tank 300 is mounted at the base 100 and formed with a water chamber 301 in fluid communication with the first water tray 1010. The float 400 is located in the first water tray 1010 and operable to rise / fall with the change of a water level in the first water tray 1010. The micro switch 500 is electrically connected to the heating member 260 and operable to turn on or turn off the heating member 260 with the rise / fall of the float 400.

[0033] It may be understood that the float 400 is operable to rise / fall with the change of the water level in the first water tray 1010, and the float 400 is a member with floating force in water. The float 400 may be solid. For example, the float 400 may be composed of a material with a lower density than water, such as foam plastic, wood or rubber. The float 400 may also be hollow, and may be filled with a gas with a lower density, such as air or nitrogen. The float 400 is not limited by the above examples, as long as the float 400 may rise or fall with the change of the water level. In addition, the present application does not limit the shape of the float 400, as long as the float 400 may be in contact with the micro switch 500 with the rise / fall of the water level, and a turn-on or turn-off state of the micro switch 500 may be switched.

[0034] According to the humidifier of the embodiment of the present application, a float 400 is provided in the first water tray 1010 of the base 100, and the micro switch 500 switches its state with the rise / fall of the float 400 to control the operation of the heating member 260. When the water level rises, the float 400 drives the micro switch 500 to be turned on and the heating member 260 works. When the water level drops, the micro switch 500 is turned off and the heating member 260 stops working. As such, the humidifier may realize the function of automatic shutdown when water runs out and automatic startup after water is refilled through the change of water level, to avoid users waiting for too long, solving a problem that the user waits for refilling water after water runs out, and improving the user experience. At the same time, the service life of the heating member 260 will not be affected due to being in a dry burning state.

[0035] It may be understood that in FIG. 3, the micro switch 500 is provided above the first water tray 1010. It may be understood that the micro switch 500 may also be provided at other positions, as long as the float 400 may change the turn-on and turn-off states of the micro switch 500 with the change of water level. When the micro switch 500 is located above the float 400, water may be effectively prevented from entering electrical elements of the micro switch 500, reducing the possibility that water vapor enters the micro switch 500 and affect the service life.

[0036] According to an embodiment of the present application, the base 100 is formed with a first mounting chamber 1020, the first mounting chamber 1020 is mounted with the micro switch 500 located above the float 400, the float 400 floats up to lift up the micro switch 500, the micro switch 500 turns on the heating member 260, the float 400 descends and dismounted from the micro switch 500, and the micro switch 500 turns off the heating member 260.

[0037] It may be understood that a shape of a space of the first water tray 1010 for accommodating the float 400 is matched with a shape of the float 400, limiting the degree of freedom of the float 400 and preventing the float 400 from shifting. Referring to FIG. 2 and FIG. 4, a cross-sectional shape of a lower part of the float 400 is a pentagon, and a cross-sectional shape of a corresponding space of the first water tray 1010 is also a pentagon. The pentagonal structure is prone to disassemble and assemble the float 400. When the float 400 is mounted at the first water tray 1010, four walls and the bottom of the first water tray 1010 are in contact with the float 400 to effectively prevent the float 400 from shifting. The shape of the float 400 and the shape of the first water tray 1010 are not limited by the above examples. The cross-sectional shape of the float 400 may be a pentagon, a rectangle, or other shapes as long as the shape of the first water tray 1010 is matched with the shape of the float 400, and may achieve the function of preventing the float 400 from shifting.

[0038] According to an embodiment of the present application, referring to FIG. 2, FIG. 3 and FIG. 5, a side of the first mounting chamber 1020 facing the first water tray 1010 is mounted with a waterproof sheath 1021, the float 400 floats up to squeeze the waterproof sheath 1021 to deform, and lift up the micro switch 500, and the float 400 descends and leaves the waterproof sheath 1021. After water enters the first water tray 1010, the float 400 generates a floating force. When the float 400 floats up and is in contact with the waterproof sheath 1021, it continues to squeeze the waterproof sheath 1021 to deform, and lifts up the micro switch 500, thereby the heating member 260 starts to work normally and generates steam. When the water level drops, the float 400 drops accordingly, the waterproof sheath 1021 no longer lifts up the micro switch 500, the heating member 260 stops working, and the float 400 leaves the waterproof sheath 1021.

[0039] According to an embodiment of the present application, a side of the first mounting chamber 1020 facing away from the first water tray 1010 is mounted with a waterproof cover 1022 and the first mounting chamber 1020 is formed between the waterproof cover 1022 and the waterproof sheath 1021. It may be understood that the waterproof cover 1022 is mounted at the base 100, and the first mounting chamber 1020 formed through the base 100, the waterproof cover 1022 and the waterproof sheath 1021 becomes a waterproof space with good waterproof effect. It may be understood that a micro switch bracket 510 is provided in the first mounting chamber 1020 and is used to fix the micro switch 500, and the micro switch 500 will not shift in the first mounting chamber 1020. During mounting, the waterproof sheath 1021, the micro switch bracket 510, the micro switch 500 and the waterproof cover 1022 are sequentially mounted at the base 100. The water in the water tank 300 is blocked through the waterproof cover 1022 and will not enter the first mounting chamber 1020. The water or water vapor in the first water tray 1010 will be blocked outside through the waterproof sheath 1021 and will not enter the first mounting chamber 1020.

[0040] According to an embodiment of the present application, the waterproof sheath 1021 is a silicone sheath. It may be understood that silicone has good sealing performance and is soft, and the sealing performance of the micro switch 500 provided above the waterproof sheath 1021 may be effectively protected. Moreover, when the float 400 floats up and is in contact with the waterproof sheath 1021, the soft silicone is prone to be deformed synchronously and then in contact with the micro switch 500.

[0041] According to an embodiment of the present application, referring to FIG. 2, FIG. 3, FIG. 6 and FIG. 7, the first water tray 1010 is mounted with a bracket 110 provided with a water-guide hole 1110, the bracket 110 and the first water tray 1010 form a lifting chamber 120 of the float 400, and the float 400 is mounted at the lifting chamber 120 and operable to rise / fall relative to the bracket 110. The bracket 110 is provided with a water-guide hole 1110, and the water in the first water tray 1010 may enter the lifting chamber 120 through the water-guide hole 1110. It may be understood that, referring to FIG. 2 and FIG. 3, the bracket 110 and the first water tray 1010 form a lifting chamber 120 of the float 400, and a shape of a lower part of the float 400 is a pentagon. During mounting, the float 400 is first in contact with the four wall surfaces of the first water tray 1010, and the bracket 110 is then mounted at the first water tray 1010. The bracket 110 limits the last wall surface of the float 400, and the bracket 110 and the first water tray 1010 limit the horizontal direction of the float 400. The bracket 110 and the first water tray 1010 form a lifting chamber 120 of the float 400, the float 400 will not shift, and the float 400 may only rise / fall vertically, ensuring the accuracy of the position of the float 400 to improve the accuracy that the float 400 is in contact with the micro switch 500. A pentagonal shape of the above-mentioned float 400 is only used as an example, and the present application is not limited to the above-mentioned example.

[0042] According to an embodiment of the present application, referring to FIG. 6 and FIG. 7, the bracket 110 includes a water-guide plate 1120 provided with a water-guide hole 1110, an upper mounting plate 1130 and a limit portion 1140 connected to a side plate and a mounting plate. The float 400 includes a floating plate 410 and a lifting member 420 connected to the floating plate 410. An end of the lifting member 420 is provided with a protrusion, and a height difference is formed relative to another end of the lifting member 420, the protrusion is directly opposite to the micro switch 500, and the micro switch 500 may be lifted up through the protrusion when the float 400 floats up. The upper mounting plate 1130 is used to mount the bracket 110 at the first water tray 1010. When the bracket 110 is mounted at the first water tray 1010, the water-guide plate 1120 and the first water tray 1010 cooperate to limit the position, and the float 400 may only be raised and lowered. The upper mounting plate 1130 further plays a role in limiting a height of the float 400, preventing the float 400 from floating up without limitation, and reducing the possibility that the micro switch 500 is damaged due to being pressed against the float 400. The limit portion 1140 includes two barriers, which may limit the lifting member 420 and further enhance the limiting effect of the bracket 110 on the float 400. The limit portion 1140 and another end of the lifting member 420 cooperate to limit the position, further ensuring the accuracy of the position of the float 400.

[0043] According to an embodiment of the present application, referring to FIG. 2 and FIG. 8, the atomization assembly 200 includes a boiler 250 mounted at the base 100, a second mounting chamber 2510 is formed between the boiler 250 and the base 100, and the heating member 260 is fixed to the second mounting chamber 2510; where the base 100 is formed with a second water tray 1030, the heating member 260 is operable to heat water in the second water tray 1030, and the second water tray 1030 is in fluid communication with the first water tray 1010 and the mist-guide passage 201. The second mounting chamber 2510 may further be mounted with a temperature protector 270. If the temperature of the heating member 260 is too high, the temperature protector 270 will quickly react to cut off a power supply of the heating member 260, and the temperature of the heating member 260 drops to further ensure the usage safety of the humidifier.

[0044] It should be noted that the present application does not limit a shape of the boiler 250. The boiler 250 may be in the shape of a hemisphere or other shapes as long as the boiler 250 may have the function of heat transfer. The present application does not limit a shape of the second water tray 1030 as long as the second water tray 1030 communicates the first water tray 1010 with an atomization passage. The first water tray 1010 communicates with the second water tray 1030, and water may flow from the first water tray 1010 to the second water tray 1030. A water passage 160 is further provided between the first water tray 1010 and the second water tray 1030. Water in the first water tray 1010 may only enter the second water tray 1030 from the water passage 160. Similarly, water in the second water tray 1030 may only enter the first water tray 1010 from the water passage 160. The water passage 160 may form a tortuous water circuit or other more complex water circuits. The present application does not limit a structure of the water passage 160 as long as the flow rate of water between the first water tray 1010 and the second water tray 1030 is limited.

[0045] Referring to FIG. 8, the second water tray 1030 is provided with an anti-dry burning portion 1031 provided with a raised edge. When the water in the first water tray 1010 flows into the second water tray 1030, the raised edge may prevent high-temperature steam formed by the boiler 250 from blocking communication of the water to avoid dry burning. When a water level in the first water tray 1010 drops, the anti-dry burning portion 1031 may further play a role in preventing dry burning. Water in the second water tray 1030 will not all flow back into the first water tray 1010, but will intercept a part of the water in the second water tray 1030. When the water level of the first water tray 1010 drops, the float 400 drops, the micro switch 500 is switched to a turn-off state, and the heating member 260 in the boiler 250 will not be cooled down immediately. The water intercepted in the second water tray 1030 may cool down together with the boiler 250, preventing the boiler 250 from dry burning when cooling down, and protecting the service life of the boiler 250.

[0046] According to an embodiment of the present application, referring to FIG. 2, a seal ring 280 is provided between the base 100 and the boiler 250, and the second mounting chamber 2510 is formed between the seal ring 280 and the boiler 250. It may be understood that since the seal ring 280 is provided between the base 100 and the boiler 250, the seal ring 280 makes mount sealing performance between the boiler 250 and the base 100 better, and fluid of the second water tray 1030 will not enter the second mounting chamber 2510, increasing the service life of the heating member 260 and ensuring safety in use. The seal ring 280 may be made of high-temperature and heat-resistant materials. For example, carbon fiber polytetrafluoroethylene (PTFE) or silicone rubber seal ring 280 may be used. The type of seal ring 280 is not limited to the examples given here.

[0047] According to an embodiment of the present application, referring to FIG. 9, the mist-guide assembly includes a mist-guide housing 210 and a mist-guide tube 230 located in the mist-guide housing 210, where the mist-guide passage 201 is formed inside the mist-guide tube 230, and the mist-guide housing 210 is detachably mounted at the base 100. The mist-guide passage 201 in the mist-guide tube 230 is unobstructed, which is conducive to the smooth flow of the mist fluid from bottom to top. The mist-guide passage 201 is further provided with a mist outlet member 240, the mist outlet member 240 is provided with a mist outlet, and the mist may enter the mist-guide passage 201. It may be understood that mist on the wall of the mist-guide passage 201 is gathered to easily form small droplets, and the small droplets are gathered to easily form water droplets that drip toward the boiler 250 at the bottom of the mist-guide passage 201. In order to prevent the water droplets from dripping toward the boiler 250, a shape of the mist outlet member 240 is high in the middle and low around. When the droplets drip along the wall of the mist-guide passage 201, they will not directly drip toward the boiler 250, but will be intercepted by the mist outlet member 240 and be located at the mist outlet member 240, ensuring the atomization effect.

[0048] According to an embodiment of the present application, referring to FIG. 9, the mist-guide assembly further includes an upper cover 220 mounted at an upper end of the mist-guide tube 230, where a top plate 2110 of the mist-guide housing 210 is formed with an annular spray port 2120, and a mist outlet chamber 2210 is formed between the top plate 2110 and the upper cover 220 and communicates with the annular spray port 2120 and the mist-guide passage 201. The mist passes through the mist-guide passage 201 to reach the mist outlet chamber 2210 and then leaves the humidifier along the annular spray port 2120. The annular spray port 2120 allows the mist to be dispersed, thereby forming a large area of humidification and improving the user's experience.

[0049] According to an embodiment of the present application, the top plate 2110 of the mist-guide housing 210 is provided with an aromatherapy cover. The mist reaches the mist outlet chamber 2210 through the mist-guide passage 201 to and then spreads along the annular spray port 2120, driving the aromatherapy smell to be diffused to the external environment, making the air fresh and improving the user's experience.

[0050] According to an embodiment of the present application, referring to FIG. 9, a cross-sectional area of the mist-guide passage 201 gradually decreases from bottom to top. After the water in the second water tray 1030 forms mist, since the cross-sectional area of the mist-guide passage 201 gradually decreases from bottom to top, the mist is gathered through the action of the mist-guide passage 201.

[0051] According to an embodiment of the present application, referring to FIG. 1 and FIG. 10, FIG. 1 is a schematic structural diagram of mounting a water tank 300 and an atomization assembly 200 at the base 100, and FIG. 10 is an exploded schematic structural diagram of a base 100 after the water tank 300 and the atomization assembly 200 are removed from the humidifier. The base 100 includes an outer base 140 and a mounting base 150. The outer base 140 is formed with an accommodation chamber 1410; the mounting base 150 is located at the accommodation chamber 1410, the mounting base 150 is formed with a first water tray 1010, and the mounting base 150 has a first mounting portion 1510 for mounting the water tank 300 and a second mounting portion 1520 for mounting the atomization assembly 200. The outer base 140 and the mounting base 150 may be detachably mounted. The outer base 140 and the mounting base 150 may be connected together by providing a buckle at the mounting base 150 and a slot at the outer base 140. In an embodiment, the outer base 140 and the mounting base 150 are connected together by threaded holes and screws. The connection method of the outer base 140 and the mounting base 150 is not limited to the above method, and other methods may also be used to connect them together.

[0052] It may be understood that shapes of the water tank 300 mounted at the first mounting portion 1510 and the atomization assembly 200 mounted at the second mounting portion 1520 are adapted. Referring to FIG. 1, the shape of the atomization assembly 200 is cylindrical, and the water tank 300 is provided with an arc contact surface adapted to the shape of the atomization assembly 200, which makes the structure of the humidifier compact and effectively reduces the volume of the humidifier. The shape of the atomization assembly 200 is not limited to the above example, and the shape of the atomization assembly 200 may also be a truncated cone or other structures.

[0053] The accommodation chamber 1410 may also be used to mount electrical elements of the humidifier and accommodate the wiring of the electrical elements. It may be understood that, referring to FIG. 3, the first mounting chamber 1020 for mounting the micro switch 500 is provided with a wiring hole 1023 and the wiring hole 1023 communicates with the accommodation chamber 1410. Referring to FIG. 4, the heating member 260 and the temperature protector 270 are provided with a port 261 at the bottom of the mounting base 150, and the port 261 may be electrically connected to the electrical elements of the accommodation chamber 1410.

[0054] According to an embodiment of the present application, referring to FIG. 2, a heating member bracket 290 is provided between the outer base 140 and the heating member 260, and used to support and fix the heating member to make the heating member 260 not directly touch the outer base 140.

[0055] According to an embodiment of the present application, referring to FIG. 2 and FIG. 9, a side wall of the mounting base 150 is provided with a third mounting portion 1530 for mounting a knob assembly 1540 and the third mounting portion 1530 is provided with a through hole 1531, where the through hole 1531 communicates with the accommodation chamber 1410, a bottom of the mist-guide tube 230 is provided with an arc-shaped plate 2310, and the third mounting portion 1530 is mounted below the arc-shaped plate 2310. Compared with being mounted at other positions of the humidifier, the knob assembly 1540 is mounted at the side wall of the humidifier, which is convenient for users to use on one hand, and may directly communicate with the accommodation chamber 1410 through the through hole 1531 on the other hand that is convenient for the wiring of the knob assembly 1540, making the overall structure of the humidifier more compact and a volume of the humidifier miniaturized. The bottom of the mist-guide tube 230 is provided with an arc-shaped plate 2310, and the arc-shaped plate 2310 is attached tightly to the third mounting portion 1530, which may provide protection for the third mounting portion 1530. Ends of the arc-shaped plate 2310 are flush with the ends of the knob assembly 1540 and the mist-guide housing 210, and the overall structure of the humidifier is beautiful and more compact. It may be understood that the knob assembly 1540 includes a knob switch 1541, a knob cover 1542 and a knob 1543, which are sequentially connected to the third mounting portion 1530.

[0056] According to an embodiment of the present application, referring to FIG. 2 and FIG. 11, the water tank 300 includes a bottom cap 310 provided with a water filling port 3110 and a water-guide port 3120, where the water filling port 3110 is provided with a seal cap 320 provided with the water-guide port 3120, and the water-guide port 3120 is provided with an ejection rod 330 and an elastic reset member 340; where the water tank 300 has a mounting position located at the base 100 and a dismounting position dismounted from the base 100; in the mounting position, the ejection rod 330 is lifted up, and the water-guide port 3120 is in fluid communication with the first water tray 1010; in the dismounting position, the elastic reset member 340 drives the ejection rod 330 to reset, and the ejection rod 330 blocks the water-guide port 3120. A silicone ring 360 is provided between the seal cap 320 and the bottom cap 310, and may effectively enhance the sealing performance of the water filling port 3110 of the water tank 300. The seal cap 320 is mounted with an ejection rod bracket 370, and a through hole 1531 is provided in the middle of the ejection rod bracket 370. The ejection rod 330 penetrates through the through hole 1531 and the ejection rod bracket 370 is used to limit the horizontal direction of the ejection rod 330. The ejection rod bracket 370 may be detachably mounted at the seal cap 320, and the ejection rod bracket 370 may also be integrally formed with the seal cap 320. The specific form of the ejection rod bracket 370 is not limited in the present application. When the ejection rod 330 is ejected, the seal cap 320 is operable to compress the elastic reset member 340 together with the ejection rod 330 to form an elastic restoring force. The elastic reset member 340 may be a spring or other parts with elastic restoring force.

[0057] It may be understood that when the user needs to fill water, the water tank 300 may be turned over for filling water. After the filling is completed, the seal cap 320 is covered. Since the elastic reset member 340 drives the ejection rod 330 to reset, the ejection rod 330 blocks the water-guide port 3120, and the water tank 300 will not leak water when it is turned over. When the user mounts the turned water tank 300 to the base 100, the ejection rod 330 is lifted up and the water-guide port 3120 is in fluid communication with the first water tray 1010.

[0058] According to an embodiment of the present application, referring to FIG. 2, the bottom cap 310 is formed with a third mounting chamber 3130, and the micro switch 500 and the float 400 are located inside the third mounting chamber 3130. The third mounting chamber 3130 formed by the bottom cap 310 may accommodate the micro switch 500, and the third mounting chamber 3130 may be integrally formed on the bottom cap 310, achieving good waterproof performance to further protect the micro switch 500.

[0059] According to an embodiment of the present application, the seal cap 320 is a screw cap mounted at the bottom cap 310 and provided with the water-guide port 3120. The screw cap is tightened by a thread, which is convenient for users to mount and remove.

[0060] According to an embodiment of the present application, referring to FIG. 2 again, the top of the water tank 300 is further provided with a handle 350 including an upper handle cover 351 and a lower handle cover 352. The lower handle cover 352 is connected to the water tank 300 and the upper handle cover 351 is connected to the lower handle cover 352. The handle 350 is convenient for users to lift the water tank 300 when replacing the water tank 300. Referring to FIG. 2, the lower handle cover 352 is connected to the water tank 300 by screw connection. The upper handle cover 351 is used to cover the lower handle cover 352, and the upper handle cover 351 and the lower handle cover 352 are connected by providing a buckle on the lower handle cover 352 and a slot on the upper handle cover 351, which is convenient for users to disassemble.

[0061] According to an embodiment of the present application, the base 100 of the humidifier is provided with two indicator lights, one of which is a power indicator light and the other is an out-of-water indicator light. After the humidifier is powered on, the power indicator light is on, indicating to the user that the humidifier is energized. When the humidifier runs out of water, the out-of-water indicator light is on, reminding the user to fill water. When there is water in the water tank 300, the out-of-water indicator light is off, and the humidifier may humidify normally.

[0062] A basic working process of the humidifier of an embodiment of the present application is as follows.

[0063] The float 400 is mounted in the first water tray 1010 of the base 100, and the bracket 110 is mounted at the first water tray 1010 to limit the horizontal direction of the float 400 and the float 400 may only be raised and lowered. The micro switch 500 is mounted at the base 100 through the micro switch bracket 510 and is located above the float 400. A side of the micro switch 500 close to the first water tray 1010 is provided with a waterproof sheath 1021 and a side of the micro switch 500 away from the first water tray 1010 is provided with a waterproof cover 1022. The waterproof cover 1022 and the waterproof sheath 1021 form a waterproof space for the micro switch 500. The rise of the float 400 may squeeze the waterproof sheath 1021 to be deformed and lift up the micro switch 500. The micro switch 500 is turned on, the heating member 260 starts to work normally, the float 400 drops and leaves the waterproof sheath 1021, and the micro switch 500 is turned off. The water tank 300 and the atomization assembly 200 are mounted at the base 100, and mounting the humidifier is completed. The micro switch 500 switches its state with the rising / falling of the float 400. As such, the humidifier may realize the function of automatic shutdown when water runs out and automatic startup after water is refilled through the change of water level, to avoid a user waiting for too long, solving a problem that the user waits for refilling water after water runs out, and improving the user experience. At the same time, the service life of the heating member 260 will not be affected due to being in a dry burning state.

[0064] The water tank 300 is mounted at the base 100, the ejection rod 330 is lifted up, the water-guide port 3120 is opened, and the water chamber 301 communicates with the first water tray 1010. When there is water in the water chamber 301, the float 400 rises, the micro switch 500 is turned on to make the heating member 260 heat up, and the water in the second water tray 1030 evaporates to form mist and enters the mist-guide passage 201. The mist is gathered through the mist-guide tube 230 and the mist outlet chamber 2210 of the upper cover 220, and finally the mist leaves from the annular spray port 2120. The water in the water chamber 301 is gradually consumed. When the water chamber 301 runs out of water, the out-of-water indicator light is on, the float 400 drops and leaves the waterproof sheath 1021, the micro switch 500 is turned off, and the heating member 260 stops heating. Since the second water tray 1030 is provided with an anti-dry burning portion 1031, some water is slowly cooled in the second water tray 1030 together with the heating member 260. The water tank 300 is disassembled from the base 100 for filling water, the ejection rod 330 is reset, the water-guide port 3120 is closed, and the seal cap 320 is disassembled for filling water.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the present application, but not to limit the present application. Although the application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the application do not depart from the scope of the solutions of the application, and should all be included in the scope of the claims of this application.

Claims

1. A humidifier, comprising a base (100) provided with a first water tray (1010); an atomization assembly (200) mounted at the base (100) and formed with a mist-guide passage (201) in fluid communication with the first water tray (1010), the atomization assembly (200) comprising a heating member (260) operable to form mist in the mist-guide passage (201); a water tank (300) mounted at the base (100) and formed with a water chamber (301) in fluid communication with the first water tray (1010); a float (400) located in the first water tray (1010) and operable to rise / fall with change of a water level in the first water tray (1010); and a micro switch (500) electrically connected to the heating member (260) and operable to turn on or turn off the heating member (260) with the rise / fall of the float (400).

2. The humidifier of claim 1, wherein: the base (100) is formed with a first mounting chamber (1020), the first mounting chamber (1020) being mounted with the micro switch (500) located above the float (400); when the float (400) floats up to lift up the micro switch (500), the micro switch (500) turns on the heating member (260); and when the float (400) descends to detach from the micro switch (500), the micro switch (500) turns off the heating member (260).

3. The humidifier of claim 2, wherein: a side of the first mounting chamber (1020) facing the first water tray (1010) is mounted with a waterproof sheath (1021), the float (400) floating up to squeeze the waterproof sheath (1021) to deform, and lifting up the micro switch (500), and the float (400) descending to leave the waterproof sheath (1021).

4. The humidifier of claim 3, wherein a side of the first mounting chamber (1020) facing away from the first water tray (1010) is mounted with a waterproof cover (1022), the first mounting chamber (1020) being formed between the waterproof cover (1022) and the waterproof sheath (1021).

5. The humidifier of claim 3, wherein the waterproof sheath (1021) is a silicone sheath.

6. The humidifier of any of claims 1 to 5, wherein the first water tray (1010) is mounted with a bracket (110) provided with a water-guide hole (1110), the bracket (110) and the first water tray (1010) forming a lifting chamber (120) of the float (400), the float (400) being mounted at the lifting chamber (120) and operable to rise / fall relative to the bracket (110).

7. The humidifier of any of claims 1 to 6, wherein: the atomization assembly (200) comprises a boiler (250) mounted at the base (100), a second mounting chamber (2510) being formed between the boiler (250) and the base (100), the heating member (260) being fixed to the second mounting chamber (2510); and the base (100) is formed with a second water tray (1030), the heating member (260) being operable to heat water in the second water tray (1030), the second water tray (1030) being in fluid communication with the first water tray (1010) and the mist-guide passage (201).

8. The humidifier of claim 7, wherein a seal ring (280) is provided between the base (100) and the boiler (250), the second mounting chamber (2510) being formed between the seal ring (280) and the boiler (250).

9. The humidifier of claim 8, wherein the mist-guide assembly comprises a mist-guide housing (210) and a mist-guide tube (230) located in the mist-guide housing (210), the mist-guide passage (201) being formed inside the mist-guide tube (230), the mist-guide housing (210) being detachably mounted at the base (100).

10. The humidifier of claim 9, wherein the mist-guide assembly further comprises an upper cover (220) mounted at an upper end of the mist-guide tube (230), a top plate (2110) of the mist-guide housing (210) being formed with an annular mist-spray port (2120), a mist outlet chamber (2210) being formed between the top plate (2110) and the upper cover (220) and communicating with the annular mist-spray port (2120) and the mist-guide passage (201).

11. The humidifier of claim 10, wherein a cross-sectional area of the mist-guide passage (201) gradually decreases from bottom to top.

12. The humidifier of any of claims 1 to 11, wherein the base (100) comprises: an outer base (140) formed with an accommodation chamber (1410); and a mounting base (150) located at the accommodation chamber (1410), wherein the mounting base (150) is formed with the first water tray (1010), and provided with a first mounting portion (1510) for mounting the water tank (300) and a second mounting portion (1520) for mounting the atomization assembly (200).

13. The humidifier of claim 12, wherein a side wall of the mounting base (150) is provided with a third mounting portion (1530) for mounting a knob assembly (1540), the third mounting portion (1530) being provided with a through hole (1531), the through hole (1531) communicating with the accommodation chamber (1410), a bottom of the mist-guide tube (230) being provided with an arc-shaped plate (2310), the third mounting portion (1530) being mounted below the arc-shaped plate (2310).

14. The humidifier of any of claims 1 to 8, wherein: the water tank (300) comprises a bottom cap (310) provided with a water filling port (3110) and a water-guide port (3120), the water filling port (3110) being provided with a seal cap (320) provided with the water-guide port (3120), the water-guide port (3120) being provided with an ejection rod (330) and an elastic reset member (340); the water tank (300) has a mounting position located at the base (100) and a dismounting position dismounted from the base (100); and in the mounting position, the ejection rod (330) is lifted up, and the water-guide port (3120) is in fluid communication with the first water tray; and in the dismounting position, the elastic reset member (340) drives the ejection rod (330) to reset, and the ejection rod (330) blocks the water-guide port (3120).

15. The humidifier of claim 14, wherein the bottom cap (310) is formed with a third mounting chamber (3130), the micro switch (500) and the float (400) being located inside the third mounting chamber (3130).

16. The humidifier of claim 14, wherein the seal cap (320) is a screw cap mounted at the bottom cap (310) and provided with the water-guide port (3120).

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