Humidifier

Abstract

The utility model provides a humidifier, relates to the technical field of household appliances, and is used for solving the technical problem that noise is large when a water pump in the humidifier operates, the humidifier comprises a water tank and a filter element assembly, and the bottom wall of the water tank is provided with a water drainage hole capable of being opened and closed; the filter element assembly is arranged below the water tank and comprises a filter element and a filter element support, the filter element is installed on the filter element support, a liquid containing groove is formed in the end, close to the water tank, of the filter element support and located below the water drainage hole, and a water outlet is formed in the groove wall of the liquid containing groove; when the lower water hole is opened, water dripping into the liquid containing groove through the lower water hole can flow to the filter element through the water outlet. According to the humidifier, water in the water tank can flow to the filter element without additionally arranging a water pump for pumping water, and noise and cost during working of the humidifier are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a humidifier. BACKGROUND

[0002] The fog-free humidifier is a kind of device that increases the humidity of air without generating visible water mist, which can reduce the deposition of water mist on furniture, reduce the breeding of bacteria, and avoid the potential damage of water mist deposition to furniture and floor.

[0003] In the related art, the fog-free humidifier includes a humidifier host, a filter element assembly, and a water tank assembly. The humidifier host is arranged above the water tank assembly, and the filter element assembly is arranged between the water tank assembly and the humidifier host. The water tank assembly includes a water tank and a water pump arranged in the water tank. The water pump is used to pump water in the water tank to the filter element assembly to humidify the filter element in the filter element assembly. In this way, when the airflow blows through the filter element, the water on the filter element can be naturally evaporated into the air to achieve the purpose of humidifying the air.

[0004] However, in the related art, the use of a water pump to pump water can generate noise and is high in cost. CONTENT OF THE INVENTION

[0005] In view of the above problems, the embodiments of the present application provide a humidifier that does not need to additionally arrange a water pump to pump water, thereby reducing the noise and cost when the humidifier is working.

[0006] To achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions:

[0007] The embodiments of the present application provide a humidifier, which includes:

[0008] A water tank, the bottom wall of the water tank has an openable and closable drain hole;

[0009] A filter element assembly arranged below the water tank, the filter element assembly includes a filter element and a filter element support, the filter element is installed on the filter element support, one end of the filter element support close to the water tank has a liquid holding groove, the liquid holding groove is located below the drain hole, and the groove wall of the liquid holding groove has a water outlet; when the drain hole is opened, the water dripping through the drain hole into the liquid holding groove can flow to the filter element through the water outlet.

[0010] The humidifier provided by the embodiments of the present application has the following advantages: the water tank is arranged above the filter element assembly, a lower water hole which can be opened and closed is arranged on the bottom wall of the water tank, a liquid containing groove is arranged on the filter element support and located below the lower water hole, and the groove wall of the liquid containing groove has a water outlet, so that when the lower water hole is opened, the water in the water tank can drip into the liquid containing groove through the lower water hole, and the water in the liquid containing groove flows to the filter element through the water outlet, so as to achieve the purpose of wetting the filter element, without the need of additionally arranging a water pump to pump the water in the water tank to the filter element, thereby avoiding the noise generated by the water pump when pumping water, improving the user experience, saving the cost of the water pump, saving energy and protecting the environment, and improving the economy.

[0011] In some embodiments, the groove wall of the liquid containing groove has a plurality of water outlets, and the plurality of water outlets are arranged at intervals in the circumferential direction of the liquid containing groove.

[0012] In this way, when the lower water hole is opened, the water in the water tank can flow to the filter element through the water outlets around the liquid containing groove, so as to improve the uniformity of the humidity of the filter element in the circumferential direction, thereby improving the humidification effect.

[0013] In some embodiments, the filter element surrounds the outer circumferential side of the liquid containing groove, and the plurality of water outlets are arranged on the groove side wall of the liquid containing groove and arranged at intervals in the circumferential direction of the liquid containing groove.

[0014] In this way, the water in the liquid containing groove flows to the filter element through the water outlets on the groove side wall around, so as to quickly and uniformly wet the filter element, thereby improving the efficiency and effect of wetting the filter element.

[0015] In some embodiments, the water outlet is arranged at one end close to the bottom wall of the liquid containing groove.

[0016] In this way, the water dripping into the liquid containing groove can flow to the filter element through the water outlet, without the need of waiting for the water in the liquid containing groove to reach a certain height before flowing to the filter element, thereby improving the efficiency of wetting the filter element, and further improving the user experience.

[0017] In some embodiments, the ratio of the depth of the liquid containing groove to the height of the filter element is 1 / 2 to 1 / 5.

[0018] In this way, the water dripping through the lower water hole can be buffered in the liquid containing groove, thereby improving the stability and consistency of the water flow.

[0019] In some embodiments, the bottom wall of the liquid containing groove has a water dripping point and a flow guide structure, and the flow guide structure is configured to guide the water dripping to the water dripping point to each water outlet, respectively.

[0020] In this way, the water dripping into the liquid containing groove can quickly and uniformly flow to each water outlet, so as to improve the humidity uniformity of the filter element and the efficiency of wetting the filter element.

[0021] In some embodiments, the tank bottom is a conical structure protruding upward, the highest point of the conical structure is formed as the water outlet point, and the conical structure is formed as the flow guide structure.

[0022] In this way, the conical structure is used as the flow guide structure, the flow guide effect is good, the structure is simple, easy to implement, and low in cost.

[0023] In some embodiments, along the height direction of the filter core, the liquid tank is located above the filter core, and a plurality of water outlets are arranged on the tank bottom of the liquid tank and are spaced apart along the circumferential direction of the liquid tank.

[0024] In this way, water uniformly wets the filter core from above, shortens the time for wetting all the filter cores, and improves the uniformity of the filter core humidity and the wetting efficiency.

[0025] In some embodiments, the tank bottom of the liquid tank has a plurality of separation structures, the plurality of separation structures are spaced apart along the circumferential direction of the liquid tank on the tank bottom, a drainage channel is formed between adjacent two separation structures, when the tank bottom of the liquid tank is provided with a plurality of water outlets spaced apart in the circumferential direction, each water outlet is located on an extension path of each drainage channel, one water outlet corresponds to one drainage channel, and each drainage channel is configured to guide water dropped into the liquid tank through the water outlet.

[0026] In this way, water dropped into the liquid tank can quickly and uniformly flow to each water outlet through each drainage channel, so as to improve the uniformity of the filter core humidity and the efficiency of wetting the filter core.

[0027] In some embodiments, the humidifier further includes a humidifier main machine and a water storage tray, the humidifier main machine includes a main machine shell and a fan assembly, the main machine shell has a containing cavity, the fan assembly and the water storage tray are arranged in the containing cavity, and the water storage tray is arranged above the fan assembly; the water storage tray has a water storage tank and an air outlet grille arranged around the water storage tank, one end of the filter core away from the water tank has a submerged part, and the submerged part is located in the water storage tank.

[0028] In this way, excess water on the filter core is collected, and the problem of damage to internal parts of the humidifier main machine caused by excess water droplets falling into the humidifier main machine is avoided.

[0029] In some embodiments, the humidifier further comprises a float and a valve body, the float is arranged in the water storage tank, one end of the valve body is connected with the float, the other end of the valve body is provided with a sealing part, the float is configured to float up and down with the change of water level in the water storage tank, so that the float drives the valve body to move, and the sealing part seals or unseals the drain hole.

[0030] In this way, the opening and closing state of the drain hole is realized by the floating structure, which is energy-saving, environmentally friendly, high in operation accuracy and low in cost.

[0031] In some embodiments, the filter element support comprises a filter element upper cover and a filter element lower cover, the filter element is arranged between the filter element upper cover and the filter element lower cover, the filter element upper cover and the filter element lower cover are detachably connected, and the filter element upper cover is arranged close to the water tank, and the filter element upper cover is provided with the liquid storage groove.

[0032] In this way, the support reliability of the filter element can be improved, so that the strength of the filter element is improved.

[0033] In addition to the technical problems solved by the embodiments of the application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the humidifier provided by the embodiments of the application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0035] Figure 1 An internal structure schematic diagram of the humidifier provided by the embodiments of the application;

[0036] Figure 2 An internal structure schematic diagram of the filter element assembly in the humidifier provided by the embodiments of the application;

[0037] Figure 3 An internal structure schematic diagram of the filter element assembly in the humidifier provided by the embodiments of the application;

[0038] Figure 4 An internal structure schematic diagram of the filter element assembly in the humidifier provided by the embodiments of the application;

[0039] Figure 5 An exploded schematic view of another structure of a humidifier provided by an embodiment of the present application;

[0040] Figure 6 An internal structure schematic view of another structure of a humidifier provided by an embodiment of the present application;

[0041] Figure 7 A partial enlarged schematic view at A in FIG. 1; Figure 6

[0042] Figure 8 A schematic view of another structure of a filter cartridge assembly in a humidifier provided by an embodiment of the present application;

[0043] Figure 9 An exploded schematic view of FIG. 2. Figure 8

[0044] BRIEF DESCRIPTION OF DRAWINGS

[0045] 10 - humidifier;

[0046] 100 - humidifier main machine; 110 - main machine shell; 111 - air inlet hole; 120 - fan assembly; 121 - motor; 122 - fan; 123 - air duct piece;

[0047] 130 - water storage tray; 131 - water storage groove; 132 - air outlet grid; 133 - mounting boss;

[0048] 200 - filter cartridge assembly; 210 - filter cartridge; 211 - submerged part;

[0049] 220 - filter cartridge support; 221 - liquid containing groove; 2211 - water outlet; 2212 - flow guide structure; 2213 - separation structure;

[0050] 222 - filter cartridge upper cover;

[0051] 2221 - air outlet;

[0052] 223 - filter cartridge lower cover;

[0053] 300 - water tank; 301 - lower water hole; 310 - tank body; 320 - tank cover; 330 - air guide structure;

[0054] 410 - valve body; 420 - sealing part;

[0055] 510 - floating piece; 520 - connecting rod; 530 - jacking rod;

[0056] 600 - water shortage protection switch. DETAILED DESCRIPTION

[0057] ​​Generally, the fog-free humidifier includes a humidifier main machine, a filter core assembly and a water tank assembly. The humidifier main machine is arranged above the water tank assembly, the filter core assembly is arranged between the water tank assembly and the humidifier main machine, and the water tank assembly includes a water tank and a water pump arranged in the water tank. The water pump is used to pump water in the water tank to above the filter core assembly, so that the water can wet the filter core in the filter core assembly from top to bottom. When the humidifier main machine operates, the water on the filter core can be naturally evaporated into the air when the airflow blows through the filter core, so as to achieve the purpose of humidifying the air. However, the water pump is used to pump the water in the water tank to above the filter core. On the one hand, the water pump will produce noise when pumping water. On the other hand, the water pump arranged in the humidifier will cause the overall cost of the humidifier to be relatively high.

[0058] To solve the above problems, the embodiment of the present application provides a humidifier. The water tank is arranged above the filter core assembly. A lower water hole which can be opened and closed is arranged on the bottom wall of the water tank. A liquid containing groove is arranged on the filter core support and is located below the lower water hole. A plurality of water outlets are arranged on the groove wall of the liquid containing groove and are arranged at intervals along the circumference of the liquid containing groove. In this way, when the lower water hole is opened, the water in the water tank can drip into the liquid containing groove through the lower water hole. The water in the liquid containing groove flows to the filter core through the water outlets around the liquid containing groove, so as to uniformly wet the filter core. The water pump is not needed to pump the water in the water tank to the filter core, so as to avoid the noise produced by the water pump when pumping water, improve the user experience, save the cost of the water pump, save energy and protect the environment, and improve the economy.

[0059] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. The embodiments described below and the features in the embodiments can be combined with each other without conflict.

[0060] The embodiment of the present application provides a humidifier. The humidifier includes but is not limited to a fog-free humidifier. The structure and working principle of the humidifier will be described in detail below taking the fog-free humidifier as an example.

[0061] Please refer to Figures 1 to 9 The humidifier 10 provided by the embodiment of the present application includes a humidifier main machine 100, a filter core assembly 200 and a water tank 300. The water tank 300 is arranged above the humidifier main machine 100, and the filter core assembly 200 is arranged between the humidifier main machine 100 and the water tank 300.

[0062] In some embodiments, please refer to Figure 1As shown, the water tank 300 comprises a tank body 310 and a tank cover 320, the tank cover 320 can be covered on the tank body 310 or detached from the tank body 310, so as to open the tank cover 320 to add water into the water tank 300 or clean the inside of the tank body 310; in addition, when the humidifier 10 is normally running, the tank cover 320 is covered on the tank body 310 can avoid dust particles and the like into the tank body 310, thereby improving the user's experience.

[0063] The water tank 300 is used to store the humidification water of the humidifier 10, and the humidification water in the water tank 300 can be pure water or a water solution with additives such as mixed spices, bactericides, essential oils, etc., which are not limited in the embodiments of the present application. The liquid used for the humidification filter element 210 will be collectively referred to as water below and will not be specifically described.

[0064] In some embodiments, please continue to refer to Figure 1 As shown, the humidifier main machine 100 comprises a main machine shell 110, a fan assembly 120, an air duct 123 and a water storage tray 130, the main machine shell 110 has a containing cavity, the main machine shell 110 has an air inlet hole 111 on the side wall close to the bottom, the air inlet hole 111 is communicated with the containing cavity and the outside of the main machine shell 110, so that the outside air can enter the containing cavity through the air inlet hole 111, the air duct 123 and the water storage tray 130 are arranged in the containing cavity, the air duct 123 has an open air duct with two ends, the fan assembly 120 is arranged in the air duct, the water storage tray 130 is arranged above the air duct 123 and is sealingly connected with the cavity wall of the containing cavity, the fan assembly 120 comprises a motor 121 and a fan 122 connected with the motor 121, the motor 121 is fixedly connected to the bottom of the water storage tray 130, the water storage tray 130 has a water storage groove 131 and an air outlet grille 132 surrounding the outer circumferential side of the water storage groove 131, the filter element assembly 200 is arranged above the water storage tray 130, and part of the filter element assembly 200 is located in the water storage groove 131.

[0065] Please refer to Figure 1 As shown, the filter element assembly 200 comprises a filter element 210 and a filter element support 220, the filter element 210 is arranged in the filter element support 220, for example, the filter element support 220 has an annular cavity, the filter element 210 is arranged in the annular cavity, the filter element support 220 has a liquid containing groove 221 on the side close to the water tank 300, and the groove wall of the liquid containing groove 221 has a water outlet 2211; for example, the groove wall of the liquid containing groove 221 can have one or more water outlets 2211, when the water outlet 2211 is multiple, the multiple water outlets 2211 are arranged on the groove wall of the liquid containing groove 221 along the circumferential direction of the liquid containing groove 221.

[0066] Please refer to Figure 7As shown, the bottom wall of the water tank 300 is provided with an openable drain hole 301, and the liquid containing groove 221 is located below the drain hole 301. Since the water tank 300 is arranged above the filter core assembly 200, when water is added into the water tank 300, the drain hole 301 can be opened when the humidifier 10 is working, so that the water in the water tank 300 can drip into the liquid containing groove 221 through the drain hole 301, and the water in the liquid containing groove 221 can flow to the filter core 210 through the water outlets 2211 around the liquid containing groove 221, so as to wet the filter core 210. When the humidifier 10 stops working or the water tank 300 does not need to drain water, the drain hole 301 is closed, that is, the water in the water tank 300 stops dripping to the filter core assembly 200. When the motor 121 is started by power, the fan 122 rotates under the drive of the motor 121 to drive the air flow, so as to accelerate the flow rate of the air flow entering the containing cavity through the air inlet hole 111. The flowing air flow blows to the wet filter core 210 through the air outlet grille 132, and the air flow passing through the filter core 210 can evaporate the water on the filter core 210 to the air, thereby increasing the humidity of the air. In addition, this humidifying method can avoid the generation of visible water mist, thereby reducing the deposition of visible water mist on furniture, reducing the breeding of bacteria, and avoiding the potential damage of water mist deposition to furniture and floor.

[0067] Therefore, in the embodiments of the present application, the water pump is not additionally arranged to pump the water in the water tank 300 to the filter core assembly 200. Compared with the traditional humidifier 10 provided with a water pump, the humidifier 10 provided by the embodiments of the present application does not generate noise when the water pump works, thereby improving the user experience. In addition, the problem of increasing the overall cost of the humidifier 10 due to the arrangement of the water pump is avoided, the cost is saved, and the economy of the humidifier 10 is improved. In addition, the water dripping through the drain hole 301 can be buffered in the liquid containing groove 221, and then flow to the filter core 210 through the multiple water outlets 2211 around the liquid containing groove 221. In this way, the stability, consistency and uniformity of the water flow to the filter core 210 can be ensured, thereby improving the humidifying efficiency and effect.

[0068] In some embodiments, please refer to Figures 1 to 4 As shown, the filter core 210 is arranged around the outer periphery of the liquid containing groove 221, and the multiple water outlets 2211 are arranged on the groove side wall of the liquid containing groove 221 and are arranged at intervals along the circumference of the liquid containing groove 221. In this way, the water in the liquid containing groove 221 can flow to the filter core 210 through the water outlets 2211 on the groove side wall around the liquid containing groove 221, so as to quickly and uniformly wet the filter core 210, thereby improving the efficiency and effect of wetting the filter core 210.

[0069] As shown in Figures 1 to 4 , the multiple water outlets 2211 are arranged on the groove side wall of the liquid containing groove 221 and are uniformly arranged at intervals along the circumference of the liquid containing groove 221, so as to further improve the uniformity of wetting the filter core 210.

[0070] In addition, please refer to Figures 1 to 4 As shown in FIG. 10, the water outlet 2211 is arranged at a position close to the bottom wall of the liquid tank 221. Compared with the case where the water outlet 2211 is arranged at a position higher than the side wall of the liquid tank 221, when there is a small amount of water in the liquid tank 221, the water can reach the height of the water outlet 2211, and then flow to the filter core 210 through the water outlet 2211 to achieve the purpose of wetting the filter core 210. Therefore, the water in the water tank 300 can flow to the filter core 210 in time through the drain hole 301, thereby shortening the time for wetting the filter core 210 and improving the humidifying efficiency and use experience of the humidifier 10.

[0071] Please continue to refer to Figures 1 to 4 As shown in FIG. 10, the ratio of the depth of the liquid tank 221 to the height of the filter core 210 is 1 / 2-1 / 5. For example, in Figure 1 and Figure 3 , the depth of the liquid tank 221 is about half of the height of the filter core 210, and the water outlet 2211 is arranged on the side wall of the liquid tank 221 close to the bottom wall, i.e., the water outlet 2211 is located at a position about halfway along the height direction of the filter core 210. In this way, the water flowing to the filter core from the water outlet penetrates upward and downward, respectively, and finally wets the entire filter core, thereby increasing the effective humidifying area of the filter core and improving the humidifying effect.

[0072] In some embodiments, please refer to Figure 1 and Figure 3 As shown in FIG. 10, the bottom wall of the liquid tank 221 has a water outlet point and a flow guide structure 2212, and the flow guide structure 2212 is located on the outer circumferential side of the water outlet point. The water outlet point is located directly below the drain hole 301, i.e., the water in the water tank 300 drips to the water outlet point through the drain hole 301. In this way, the water dripping to the water outlet point is guided to the water outlets 2211 around the water outlet point through the flow guide structure 2212, so that the water dripping to the liquid tank 221 can uniformly flow to the filter core 210 through the water outlets 2211 around the water outlet point, thereby improving the humidity uniformity of the filter core 210.

[0073] It should be noted that the water outlet point refers to the dripping position corresponding to the water dripping to the liquid tank 221 through the drain hole, which can be a region corresponding to the water dripping through the drain hole.

[0074] For example, in Figure 1 and Figure 3In some embodiments, as shown in

[0075] In some embodiments, as shown in Figures 5 to 9 In some embodiments, as shown in

[0076] In some embodiments, as shown in Figure 8 In some embodiments, as shown in

[0077] In some embodiments, as shown in

[0078] In some embodiments, as shown in Figure 1 and Figure 6 In some embodiments, as shown in

[0079] In some embodiments, as shown in Figure 1 The valve body 410 is arranged in the drain hole 301, and the sealing part 420 is arranged at one end of the valve body 410 facing the water tank 300. The valve body 410 drives the sealing part 420 to move along the axial direction of the drain hole under the action of a force to block the drain hole or remove the sealing part 420 from the drain hole. For example, the valve body 410 moves upward along the axial direction of the drain hole to remove the sealing part 420 from the drain hole by the valve body 410, and water in the water tank 300 can drip through the drain hole 301. When the valve body 410 drives the sealing part 420 to move downward along the axial direction of the drain hole 301 so that the sealing part 420 blocks the drain hole, the water in the water tank 300 stops dripping through the drain hole 301. Therefore, the valve body 410 drives the sealing part 420 to move along the axial direction of the drain hole to open or close the drain hole.

[0080] In some embodiments, the valve body 410 can be a rod-shaped structure, for example, the valve body 410 is a circular, oval, polygonal or any other shape in cross section. The profile shape of the drain hole matches the profile shape of the cross section of the valve body 410 so that the valve body 410 is arranged in the drain hole. The sealing part 420 can be a sealing ring made of rubber, silicone or other materials with sealing properties. The sealing ring is arranged at the top end of the valve body 410. For example, as shown in Figure 1 When the valve body 410 moves downward to abut the inner bottom wall of the water tank 300, the sealing ring seals the gap between the valve body 410 and the hole wall of the drain hole to prevent water from leaking through the gap between the drain hole and the valve body 410, thereby improving the sealing performance of the drain hole 301 when closed. When the valve body 410 moves upward to a certain height, the sealing part 420 unseals the drain hole 301 to open the drain hole. Therefore, without an additional water pump, the opening and closing states of the drain hole can be achieved by moving the sealing part 420 with the valve body 410.

[0081] In some embodiments, the humidifier 10 further comprises a first elastic member. The valve body 410 has a limiting part at one end away from the sealing part 420. The first elastic member is arranged between the limiting part and the outer bottom wall of the water tank 300. When the sealing part 420 blocks the drain hole, the first elastic member can drive the valve body 410 to further move downward along the axial direction of the drain hole by the elastic force of the first elastic member to improve the fitting force between the sealing part 420 and the bottom wall of the water tank 300, thereby improving the reliability of the sealing part 420 in sealing the gap between the drain hole and the valve body 410.

[0082] For example, the first elastic member includes but is not limited to a spring.

[0083] In other embodiments, as shown in Figure 6 and Figure 7As shown, the valve body 410 and the sealing part 420 are both located below the drain hole 301. When the valve body 410 moves the sealing part 420 upward, the sealing part 420 blocks and closes the drain hole 301. When the valve body 410 moves the sealing part 420 downward, the sealing part 420 releases the blockage of the drain hole 301, so that the drain hole 301 opens.

[0084] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 6 As shown, the humidifier also includes a water storage tray 130 and a floating component 510. The floating component 510 can be a float, a floating block, or other structures. The water storage tray 130 is located in the accommodating cavity of the main unit housing 110 and above the fan assembly. The water storage tray 130 has a water storage tank 131, and the bottom of the filter element 210 has a submerged part 211. Both the submerged part 211 and the floating component 510 are located in the water storage tank 131. In this way, when there is too much water on the filter element 210 and it is not absorbed by the filter element 210, it can flow along the filter element 210 to the water storage tank 131, thereby preventing the water on the filter element 210 from flowing into the humidifier main unit 100 and causing problems such as leakage damage to the motor 121 due to water ingress. The floating component 510 can float up and down with the change of water level in the water storage tank 131, thereby driving the valve body 410 to move the sealing part 420 to open or close the drain hole 301.

[0085] For example, such as Figure 6 As shown, the valve body 410 and the sealing part 420 are both located below the drain hole 301. The floating part 510 is connected to the valve body 410 through the top rod 530. When the floating part 510 floats upward with the liquid surface, the valve body 410 drives the sealing part 420 to move upward. When the water level in the water tank 131 reaches a certain height, the sealing part 420 blocks the drain hole 301. In this way, the problem of too much water in the water tank 131 overflowing into the humidifier main unit 100 can be prevented.

[0086] Another example, such as Figure 1 As shown, the valve body 410 passes through the drain hole 301, and the sealing part 420 is located in the water tank and sleeved on the top of the valve body 410. The humidifier 10 also includes a connecting rod 520, which connects the valve body 410 and the floating member 510. The floating member 510 is configured to float up and down in the vertical direction so as to drive the valve body 410 to move in the drain hole 301 through the connecting rod 520. The direction of movement of the floating member 510 is opposite to the direction of movement of the valve body 410. For example, when the floating member 510 moves upward, the floating member 510 drives the valve body 410 to move downward through the connecting rod 520 to close the drain hole; when the floating member 510 moves downward, the floating member 510 drives the valve body 410 to move upward through the connecting rod 520 to open the drain hole.

[0087] It can be understood that by arranging the connecting rod 520 between the floating member 510 and the valve body 410, the connecting rod 520 can effectively transmit and amplify the force of the floating member 510, so that a smaller driving force can achieve reliable control of the valve body 410, thereby improving the overall reliability and operation simplicity of the floating mechanism 500.

[0088] Therefore, in the embodiment of the present application, by arranging the floating member 510, the floating member 510 can adaptively float up and down with the change of the water level in the water storage tank 131, thereby achieving the purpose of automatically closing the drain hole 301 when there is more water in the water storage tank 131, and automatically opening the drain hole 301 when there is less water in the water storage tank 131. The opening or closing of the drain hole 301 does not require additional power consumption, and can accurately automatically open or close the drain hole with the change of the water level in the water storage tank 131. The structure is simple, energy-saving and environmentally friendly, the cost is low, and noise can be avoided, thereby improving the user experience and the performance-price ratio of the humidifier 10.

[0089] In addition, in Figure 1 , the humidifier 10 further comprises a top rod 530, the top rod 530 penetrates the bottom wall of the liquid containing tank 221 and is connected between the valve body 410 and the connecting rod 520, so that the connecting rod 520 can apply upward or downward driving force to the valve body 410 through the top rod 530 to drive the valve body 410 to move in the drain hole.

[0090] In some embodiments, please refer to Figure 1 and Figure 6 , the water storage disc 130 has a mounting boss 133, and the floating member 510 has a bottom-opened avoiding groove, for example, the floating member 510 is a hollow floating bottle, and the floating bottle is covered on the mounting boss 133, so that the mounting boss 133 can limit the circumference of the floating bottle, and can avoid the floating bottle moving in the circumference in the water storage tank 131 to affect the reliability of triggering the connecting rod 520. Therefore, the mounting boss 133 and the avoiding groove are equivalent to a guide structure, which can guide the up-and-down floating of the floating bottle, thereby improving the route accuracy of the up-and-down floating of the floating bottle.

[0091] In some embodiments, please refer to Figure 6 , the humidifier 10 further comprises a water shortage protection switch 600, the water shortage protection switch 600 is electrically connected with the humidifier main machine 100, for example, the water shortage protection switch 600 is electrically connected with the motor 121 in the humidifier main machine 100. In order to avoid the phenomenon of dry burning of the humidifier 10 when the water storage tank 131 is short of water, by arranging the water shortage protection switch 600, when the water storage tank 131 is short of water, the water shortage protection switch 600 is triggered or is untriggered, so that the humidifier main machine 100 is in a power-off state, that is, the humidifier 10 automatically stops when it is short of water, thereby improving the safety and reliability of the humidifier 10 and prolonging the service life of the humidifier 10.

[0092] In some embodiments, the water shortage protection switch 600 is disposed on one of the mounting boss 133 and the bottom of the clearance groove. When the floating member 510 floats up and down vertically with the water level, the water shortage protection switch 600 is triggered or detrimentalized, so that the humidifier main unit 100 is powered off or powered on. For example, when the water shortage protection switch 600 is triggered, the humidifier main unit 100 is powered off; when the water shortage protection switch 600 is detrimentalized, the humidifier main unit 100 is automatically powered on.

[0093] In this embodiment, firstly, by setting a water shortage protection switch 600, the humidifier 10 can be protected against water shortage. Secondly, by setting the water shortage protection switch 600 between the floating member 510 and the mounting boss 133, the water shortage protection switch 600 can be triggered or detrimentaled when the floating member 510 rises or falls with the water level. This allows for precise water shortage protection without the need for additional components to trigger the water shortage protection switch 600. The structure is simple and low-cost, and it also improves the overall structural compactness of the humidifier 10, thereby achieving the goal of lightweighting and miniaturization of the humidifier 10.

[0094] For example, such as Figure 6 As shown, the water shortage protection switch 600 is mounted on the mounting boss 133 and is electrically connected to the motor 121 located below it. The top of the water shortage protection switch 600 has a trigger part that can move vertically. When the floating member 510 continuously decreases in the water level in the water tank 131, the bottom of the clearance groove contacts the trigger part and pushes the trigger part downward. When the water tank 131 is in a water shortage state, the bottom of the clearance groove abuts against the trigger part, and the motor 121 is de-energized. When there is water in the water tank 131 and it continuously floats upward as the water level in the water tank 131 rises, the bottom of the clearance groove releases from the trigger part, the trigger part moves upward, the water shortage protection switch 600 is in an untriggered state, the motor 121 is energized, and the humidifier 10 can operate normally.

[0095] In some embodiments, such as Figure 1As shown in the figure, the filter core support 220 comprises a filter core upper cover 222 and a filter core lower cover 223, which jointly enclose an annular cavity, and the filter core lower cover 223 is provided with an air inlet communicating with the annular cavity, and the filter core upper cover 222 is provided with an air outlet 2221 communicating with the annular cavity, the air inlet, the annular cavity and the air outlet 2221 form an air flow channel, and the filter core 210 is arranged on the air flow channel, so that the air flow blown by the air outlet grille 132 to the filter core assembly 200 can pass through the filter core 210 through the air inlet and flow out through the air outlet 2221, so as to evaporate the moisture on the filter core 210 in the air to increase the humidity of the air, thereby achieving the purpose of humidifying the air.

[0096] In order to reduce the air resistance, as shown in the figures, Figure 3 and Figure 7 As shown in the figure, the air outlet 2221 extends to the side wall of the filter core 210 to increase the air outlet area, thereby improving the humidification efficiency and effect.

[0097] In addition, as shown in the figure, Figure 1 The bottom profile of the water tank 300 is provided with a wind guide structure 330, so that the air resistance generated by the water tank 300 can be reduced, and the air flow flowing out of the air outlet 2221 can flow out along the wind guide structure 330, thereby further improving the humidification efficiency and reducing the air resistance.

[0098] In summary, the humidifier provided by the embodiment of the present application sets the water tank above the filter core assembly, sets an openable drain hole in the bottom wall of the water tank, sets a liquid containing groove on the filter core support, the liquid containing groove is located below the drain hole, the groove wall of the liquid containing groove is provided with a plurality of water outlets, and the plurality of water outlets are arranged at intervals along the circumference of the liquid containing groove, so that when the drain hole is opened, the water in the water tank can drip into the liquid containing groove through the drain hole, and the water in the liquid containing groove can flow to the filter core through the water outlets around the liquid containing groove, thereby achieving the purpose of uniformly wetting the filter core. It is not necessary to additionally set a water pump to pump the water in the water tank to the filter core, thereby avoiding the noise generated by the water pump when pumping water, improving the user experience, saving the cost of the water pump, being energy-saving and environment-friendly, and improving the economy.

[0099] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification mean that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.

[0100] In general, terminology can be understood at least in part from usage in context. For example, and as used herein, the term "one or more" can describe any feature, structure, or characteristic in the singular or can describe combinations of features, structures, or characteristics, in the plural, depending on the context in which such terms are used. Similarly, terms, such as "a," "an," or "the," again, can be understood to convey a singular usage or to convey a plural usage, depending on the context in which such terms are used.

[0101] It will be readily understood that the terms "on," "above," and "over," as used herein, shall not convey the sole meaning of "directly on," but shall also include the meaning of "on," "above," or "over," with intervening features or layers, and that "above" or "over" shall include the meaning of "above" or "over," with no intervening features or layers (i.e., directly on).

[0102] In addition, spatially relative terms, such as "beneath," "below," "lower," "above," "upper," and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0103] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions recorded in the above-described embodiments, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A humidifier, characterized by, The application relates to a water tank (300) with a bottom wall having an openable and closable drain hole (301); a filter core assembly (200) arranged below the water tank (300), the filter core assembly (200) comprising a filter core (210) and a filter core support (220), the filter core (210) being mounted on the filter core support (220), the filter core support (220) having a liquid holding groove (221) at one end close to the water tank (300), the liquid holding groove (221) being located below the drain hole (301), and the liquid holding groove (221) having a water outlet (2211) on the groove wall. When the drain hole (301) is opened, water dripping through the drain hole (301) into the liquid holding groove (221) can flow to the filter core (210) through the water outlet (2211). The liquid holding groove (221) has a plurality of water outlets (2211) arranged at intervals in the circumferential direction of the liquid holding groove (221). The filter core (210) is arranged around the outer periphery of the liquid holding groove (221), and the water outlets (2211) are arranged on the groove side wall of the liquid holding groove (221).

2. The humidifier of claim 1, wherein, The water outlets (2211) are arranged at one end close to the bottom wall of the liquid holding groove (221).

3. The humidifier of claim 2, wherein, The ratio of the depth of the liquid holding groove (221) to the height of the filter core (210) is 1 / 2-1 / 5.

4. The humidifier of claim 3, wherein, The bottom wall of the liquid holding groove (221) has a water outlet point and a flow guide structure (2212), and the flow guide structure (2212) is configured to guide water dripping to the water outlet point to each water outlet (2211).

5. The humidifier of claim 4, wherein, The groove bottom of the liquid holding groove (221) is a conical structure protruding upward, the highest point of the conical structure is formed as the water outlet point, and the conical structure is formed as the flow guide structure (2212).

6. The humidifier of claim 4, wherein, In the height direction of the filter core (210), the liquid holding groove (221) is located above the filter core (210), and the water outlets (2211) are arranged on the groove bottom of the liquid holding groove (221).

7. The humidifier of claim 6, wherein, The groove bottom of the liquid holding groove (221) has a plurality of separation structures (2213) arranged at intervals in the circumferential direction of the liquid holding groove (221), and adjacent two separation structures (2213) form a drainage channel, when the groove bottom of the liquid holding groove (221) has a plurality of water outlets (2211) arranged at intervals in the circumferential direction, each water outlet (2211) is located on the extension path of each drainage channel, one water outlet (2211) corresponds to one drainage channel, and each drainage channel is configured to guide water dripping from the drain hole (301) into the liquid holding groove (221) to each water outlet (2211).

8. The humidifier of claim 1, wherein, ​ 9. The humidifier of claim 8, wherein, ​ 10. The humidifier according to any one of claims 1-9, wherein, The humidifier further comprises a humidifier main machine (100) and a water storage tray (130), the humidifier main machine (100) comprises a main machine shell and a fan assembly, the main machine shell has a containing cavity, the fan assembly and the water storage tray (130) are arranged in the containing cavity, and the water storage tray (130) is arranged above the fan assembly. The water storage tray (130) has a water storage groove (131) and an air outlet grille arranged outside the circumferential side of the water storage groove (131), and the filter core (210) has a submerged part at one end away from the water tank (300), and the submerged part is located in the water storage groove (131).

11. The humidifier of claim 10, wherein, The humidifier further comprises a floating member (510) and a valve body (410), the floating member (510) is arranged in the water storage groove (131), one end of the valve body (410) is connected with the floating member (510), and the other end of the valve body (410) has a sealing part (420), the floating member (510) is configured to float up and down with the change of the water level in the water storage groove (131), so that the floating member (510) drives the valve body (410) to move, and the sealing part (420) seals or unseals the drain hole (301).

12. The humidifier of any one of claims 1-9, wherein, The filter core support (220) comprises a filter core upper cover (222) and a filter core lower cover (223), the filter core (210) is arranged between the filter core upper cover (222) and the filter core lower cover (223), the filter core upper cover (222) and the filter core lower cover (223) are detachably connected, and the filter core upper cover (222) is arranged close to the water tank (300), and the filter core upper cover (222) has the liquid containing groove (221).

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