Electric appliance with humidifying function

Abstract

The utility model discloses a kind of electric appliances with humidification function, it is related to small household electrical appliances technical field, wherein, electric appliance includes main body, wet curtain component, water distribution structure, fan assembly and switch component. Main body is equipped with main body cavity extending up and down, upper portion is equipped with upper water cavity, bottom is lower water cavity, wet curtain component is located in main body cavity, its lower end is inserted into lower water cavity, and wind channel that is connected with air inlet and air outlet is defined. Water distribution tray is located at the top of wet curtain component, is equipped with water distribution hole, so that the water of upper water cavity evenly moistens wet curtain. Fan assembly is located above water distribution structure, drives air to blow out after flowing through wet curtain from top to bottom. Switch component is located between upper water inlet and water distribution tray, using mechanical control mode, without water pump, avoid blockage problem due to scale or impurities. The scheme is supplied by gravity, mechanical control and fan high-level arrangement, simplify structure, improve humidification efficiency, and effectively prevent the influence of water accumulation on fan, ensure that equipment runs stably and reliably.

Description

Technical Field

[0001] This utility model relates to the field of small household appliance technology, and in particular to an appliance with a humidification function. Background Technology

[0002] Existing humidifying appliances typically use a fan inside the cavity to blow air across a moistened evaporative cooling pad, causing moisture to evaporate and increasing humidity. While mist-free spray humidifiers can achieve high humidification volumes, they often rely on a water pump to deliver water to the top of the evaporative cooling pad for even spraying. This method is prone to pump blockage due to scale or impurities in the water, leading to equipment malfunctions. Therefore, there is an urgent need to design a humidifier whose water supply structure can effectively prevent scale and impurities from affecting the water pump, while ensuring that water inside the cavity does not interfere with the normal humidification operation of the fan. Utility Model Content

[0003] The main purpose of this invention is to provide an electrical appliance with a humidification function, which aims to effectively avoid the influence of scale and impurities on the water pump, while ensuring that the water in the inner cavity does not interfere with the normal humidification operation of the fan.

[0004] To achieve the above objectives, the electrical appliance proposed in this utility model includes:

[0005] The main body has a main body cavity, and an upper water cavity and a lower water cavity located on the upper and lower sides of the main body cavity respectively. The main body is provided with an air inlet and an air outlet. The air inlet is located above the air outlet. The bottom of the upper water cavity is provided with an upper water inlet.

[0006] The wet curtain assembly is disposed in the main body cavity, and its lower end extends into the drain cavity. The wet curtain assembly defines an air duct that extends vertically, and the air duct is configured to connect the air inlet and the air outlet.

[0007] The water distribution structure includes a water distribution plate disposed in the main cavity and located on the upper side of the wet curtain assembly, and the water distribution plate is provided with water distribution holes corresponding to the wet curtain assembly;

[0008] A fan assembly, disposed in the main cavity and located above the water distribution structure, is used to drive airflow into the air inlet and out of the air outlet; and,

[0009] A switch assembly is located between the upper water inlet and the water distribution plate to control the flow of water between the upper water inlet and the water distribution plate.

[0010] In one embodiment, the electrical appliance further includes a floating member located below the switch assembly, the lower end of the floating member extending into the drain cavity;

[0011] The switch assembly includes a switch element rotatably disposed about a rotation axis in a first horizontal direction to control the flow of water between the upper water inlet and the water distribution plate during its rotational stroke. One end of the switch element is floatingly connected to the floating element so as to be driven to rotate by the floating element.

[0012] In one embodiment, a lower water inlet is provided at the bottom of the main body cavity and is connected to the upper water inlet;

[0013] The switching assembly includes:

[0014] An adapter is installed at the lower water inlet and has a flow channel that communicates with the lower water inlet;

[0015] The first sealing structure includes a first sealing part and a second sealing part, both of which are movably disposed along a vertical direction corresponding to the inlet and outlet ends of the flow channel, respectively, so as to open and close the inlet and outlet ends of the flow channel during their respective movements; and,

[0016] A switch element is disposed between the lower water inlet and the water distribution plate. The switch element is rotatably arranged about a rotation axis in a first horizontal direction, and has a first end and a second end that rotate about its rotation axis and move in the vertical direction. The first end of the switch element drives the first sealing part to move, and the second end of the switch element drives the second sealing part to move.

[0017] In one embodiment, a clearance opening is provided at the bottom of the adapter corresponding to the first end of the switch;

[0018] The switch assembly further includes a first push rod and a first reset member. The first push rod extends upward from the relief opening, passes through the lower water inlet, and extends into the main body cavity. The first sealing part is located in the main body cavity and is connected to the first push rod. The first sealing part is used to seal the lower water inlet when the first push rod moves downward.

[0019] When the first end of the switch is moved upward, it drives the top rod to move upward to open the lower water inlet. The first reset member is used to provide a reset force when the first sealing part moves downward.

[0020] In one embodiment, the switch assembly further includes an elastic membrane, the periphery of which is connected to the periphery of the relief opening, and the elastic membrane is deformable at least in the vertical direction;

[0021] The first end of the switch abuts against the outer side of the elastic membrane to drive the first push rod located inside the elastic membrane to move upward.

[0022] In one embodiment, the second sealing part is installed at the second end of the switch member, and the second sealing part is used to seal the outlet end of the flow channel when the second end of the switch member moves upward.

[0023] In one embodiment, the top of the switch is recessed with a water receiving groove, the water receiving groove is provided corresponding to the outlet end of the flow channel, and the second sealing part is provided in the water receiving groove;

[0024] The water receiving trough is provided laterally through one side of the switch component to guide the water in the water receiving trough to the water distribution plate.

[0025] In one embodiment, the rotation axis of the switching element is positioned closer to its first end than its second end;

[0026] The second end of the switch is floatingly connected to the floating element.

[0027] In one embodiment, the evaporative cooling pad assembly is arranged around the periphery of the floating member; or,

[0028] The floating element is located on the side of the wet curtain assembly.

[0029] In one embodiment, the upper end of the water distribution plate is recessed with an annular groove, and a plurality of water distribution holes are provided on the side wall of the annular groove. The plurality of water distribution holes are arranged at intervals along the circumference of the water distribution plate and are provided corresponding to the top of the wet curtain assembly.

[0030] In one embodiment, the body includes:

[0031] The main housing, within which the main body cavity is formed; and,

[0032] The upper water tank assembly is detachably installed on the top of the main housing. The upper water tank assembly includes an upper water tank and a second sealing structure. The upper water tank has the upper water chamber, and the second sealing structure is used to open and seal the upper water inlet.

[0033] In one embodiment, the second sealing structure includes:

[0034] The second push rod is inserted through the upper water inlet and extends into the upper water cavity;

[0035] The third sealing part is located in the upper water chamber and connected to the second push rod. The third sealing part is used to seal the upper water outlet when the second push rod moves downward.

[0036] The second reset element is used to provide a reset force when the third sealing part moves downward;

[0037] The top of the main housing is provided with a lifting part corresponding to the upper water inlet. The lifting part is used to drive the second push rod to move the third sealing part upward when the upper water tank assembly is installed on the main housing, so as to open the upper water inlet.

[0038] In one embodiment, the electrical appliance includes a fan cooler, a humidifier, or a humidifier-purifier combo unit.

[0039] In this utility model's technical solution, an upper water chamber and a lower water chamber are arranged vertically within the main body, and gravity is used to achieve natural water flow, simplifying the water supply structure. A mechanical switch assembly is used to control the water flow, eliminating the need for a water pump and thus preventing the pump from being clogged by scale or impurities. A water distribution plate ensures that the water flow from the upper water chamber is evenly distributed to the top of the evaporative cooling pad assembly, guaranteeing that the evaporative cooling pad assembly can be continuously and fully wetted. A fan assembly is located on the upper side of the evaporative cooling pad assembly, in the upper space of the main body cavity, away from the water accumulation area in the evaporative cooling pad assembly and the lower water chamber, preventing fan malfunction due to moisture or water accumulation. This provides an electrical appliance that effectively avoids the impact of scale and impurities on the water pump, while ensuring that water in the inner cavity does not interfere with the normal humidification operation of the fan. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0041] Figure 1 An exploded view of an embodiment of the electrical appliance provided by this utility model;

[0042] Figure 2 for Figure 1 A partial structural diagram of Zhongdian Electric;

[0043] Figure 3 for Figure 2 Schematic diagram of the structure of the switch assembly;

[0044] Figure 4 and Figure 5 for Figure 1 A cross-sectional schematic diagram of Zhongdian Electric Appliances;

[0045] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0046] Figure 7 for Figure 5 A magnified view of a section at point B.

[0047] Explanation of icon numbers:

[0048] 100. Electrical components; 1. Main body; 1a. Main body cavity; 1b. Upper water cavity; 1c. Lower water cavity; 1d. Air inlet; 1e. Air outlet; f. Upper water inlet; h. Lower water inlet; 11. Main housing; 111. Lifting part; 12. Upper water tank assembly; 121. Upper water tank; 122. Second sealing structure; 1221. Second top rod; 1222. Third sealing part; 1223. Second reset part; 2. Wet curtain assembly; g. Air duct; 3. Water distribution structure; 31. Water distribution plate; 31a. Water distribution hole; 31b. Annular groove; 4. Fan assembly; 5. Switch assembly; 51. Switch component; 511. First end; 512. Second end; 51a. Water receiving trough; 52. Adapter component; 52a. Flow channel; 52a1. Inlet end; 52a2. Outlet end; 52b. Relief port; 53. First sealing part; 54. Second sealing part; 55. First push rod; 56. First reset component; 57. Elastic membrane; 6. Floating component.

[0049] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0051] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0052] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0053] Existing humidifying appliances typically use a fan inside the cavity to blow air across a moistened evaporative cooling pad, causing moisture to evaporate and increasing humidity. While mist-free spray humidifiers can achieve high humidification volumes, they often rely on a water pump to deliver water to the top of the evaporative cooling pad for even spraying. This method is prone to pump blockage due to scale or impurities in the water, leading to equipment malfunctions. Therefore, there is an urgent need to design a humidifier whose water supply structure can effectively prevent scale and impurities from affecting the water pump, while ensuring that water inside the cavity does not interfere with the normal humidification operation of the fan.

[0054] This utility model proposes an electrical appliance that can effectively prevent scale and impurities from affecting the water pump, while ensuring that the water in the inner cavity does not interfere with the normal humidification operation of the fan.

[0055] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5In one embodiment of this utility model, the electrical appliance 100 includes a main body 1, a wet curtain assembly 2, a water distribution structure 3, a fan assembly 4, and a switch assembly 5. The main body 1 has a main cavity 1a, and an upper water cavity 1b and a lower water cavity 1c located on the upper and lower sides of the main cavity 1a, respectively. The main body 1 has an air inlet 1d and an air outlet 1e, with the air inlet 1d located above the air outlet 1e. The bottom of the upper water cavity 1b is provided with an upper water inlet f. The wet curtain assembly 2 is disposed in the main cavity 1a, and its lower end extends into the lower water cavity 1c. The wet curtain assembly 2 defines an upwardly extending air duct g. The air duct g is configured to connect the air inlet 1d and the air outlet 1e; the water distribution structure 3 includes a water distribution plate 31, which is located in the main body cavity 1a and above the wet curtain assembly 2, and the water distribution plate 31 is provided with water distribution holes 31a corresponding to the wet curtain assembly 2; the fan assembly 4 is located in the main body cavity 1a and above the water distribution structure 3, and is used to drive the airflow to enter from the air inlet 1d and blow out from the air outlet 1e; the switch assembly 5 is located between the upper water inlet f and the water distribution plate 31 to control the water flow between the upper water inlet f and the water distribution plate 31.

[0056] Understandably, the main body 1 is the basic supporting component of the overall structure, and has an internal main body cavity 1a extending vertically. An upper water cavity 1b and a lower water cavity 1c are respectively provided in the upper and lower parts of the main body cavity 1a. The upper water cavity 1b is used to store the water source to be supplied to the wet curtain assembly 2, and has an upper water inlet f at its bottom, which is connected to the water distribution structure 3 below. The lower water cavity 1c is used to collect excess water flowing down from the wet curtain assembly 2, ensuring that the system is recycled while preventing water from accumulating and overflowing.

[0057] An air inlet 1d and an air outlet 1e are provided on the outer wall of the main body 1. The air inlet 1d is located above the air outlet 1e, forming a downward airflow path, so that the air can fully pass through the wet curtain assembly 2 for humidity exchange and then be blown out from the bottom.

[0058] A wet curtain assembly 2 is installed within the main cavity 1a, and its overall arrangement is vertical. It should be noted that the wet curtain assembly 2 is made of a material with excellent water absorption properties, such as non-woven fabric or honeycomb evaporative filter media. The lower end of the wet curtain assembly 2 extends into the lower water cavity 1c, ensuring that its bottom is always submerged in water, thereby guaranteeing that the wet curtain assembly 2 remains continuously moist. Simultaneously, the wet curtain assembly 2 forms a vertically continuous air duct g, which connects the air inlet 1d and the air outlet 1e, enabling efficient humidification as air flows through it.

[0059] The water distribution structure 3 is provided on the top of the evaporative cooling pad assembly 2, specifically including a horizontally arranged water distribution plate 31, on which multiple water distribution holes 31a corresponding to the upper surface of the evaporative cooling pad are opened. When water flows out from the upper water inlet f of the upper water chamber 1b, it is guided and dispersed by the water distribution plate 31, and drips evenly onto the top of the evaporative cooling pad assembly 2, so that the evaporative cooling pad assembly 2 is fully wetted.

[0060] It should be noted that the fan assembly 4 is positioned above the water distribution structure 3, specifically in the upper region of the main cavity 1a, near the top of the lower water cavity 1c. When the fan is running, it drives air to flow from top to bottom, completing the humidification process through the evaporative cooling pad assembly 2 before being discharged through the air outlet 1e. Because the fan assembly 4 is located above the evaporative cooling pad assembly 2 and the lower water cavity 1c, away from the water surface, it is not affected by moisture or water accumulation.

[0061] Furthermore, a switch assembly 5 is provided between the upper water inlet f of the upper water chamber 1b and the water distribution plate 31. This switch assembly 5 can adopt a mechanical control structure, such as a float valve or a manual valve. When the user adds water to the upper water chamber 1b, the float valve automatically closes and stops water supply when the water level reaches the set height; when the water level drops, the float valve automatically opens to replenish water. Compared with the structure in related technologies that uses a water pump to deliver water to the top of the wet curtain for uniform spraying, this structure can achieve water supply without the use of a traditional water pump, fundamentally avoiding the clogging problem caused by scale or impurities in the water.

[0062] It should also be noted that the water inlet chamber 1b can be designed as a detachable structure according to actual needs, such as a snap-fit ​​or screw-cap type water tank, which is convenient for users to clean or replace regularly; or it can be a fixed design, with water being added through the water inlet at the top.

[0063] In the technical solution of this utility model, by setting an upper water chamber 1b and a lower water chamber 1c distributed vertically within the main body 1, and utilizing gravity to achieve natural water flow, the water supply structure is simplified. A mechanical switch assembly 5 is used to control the water flow, eliminating the need for a water pump and thus preventing the water pump from being blocked by scale or impurities. The water distribution plate 31 ensures that the water flow from the upper water chamber 1b is evenly distributed to the top of the wet curtain assembly 2, ensuring that the wet curtain assembly 2 can be continuously and fully wetted. The fan assembly 4 is set on the upper side of the wet curtain assembly 2, located in the upper space of the main body cavity 1a, away from the water accumulation area in the wet curtain assembly 2 and the lower water chamber 1c, to prevent the fan from malfunctioning due to moisture or water accumulation. This provides an electrical appliance 100 that can effectively avoid the influence of scale and impurities on the water pump, while ensuring that the water in the inner cavity does not interfere with the normal humidification operation of the fan.

[0064] Specifically, please refer to Figure 5 and Figure 6In this embodiment, the electrical appliance 100 further includes a floating member 6 located below the switch assembly 5, the lower end of the floating member 6 extending into the lower water chamber 1c; the switch assembly 5 includes a switch member 51, the switch member 51 being rotatably arranged about a rotation axis in a first horizontal direction, so as to control the flow of water between the upper water inlet f and the water distribution plate 31 during its rotation stroke, one end of the switch member 51 being floatingly connected to the floating member 6 so as to be driven to rotate by the floating member 6.

[0065] It should be noted that the floating element 6 is located below the switch assembly 5, and the lower end of the floating element 6 extends into the drain chamber 1c. When the water level in the drain chamber 1c changes, the floating element 6 can float up and down with the change in the water level in the drain chamber 1c.

[0066] The floating component 6 can be a buoy structure with a certain weight or a float structure made of lightweight material, ensuring that it can float stably in the water and generate corresponding displacement with changes in water level. The floating component 6 is connected to the switch component 51 in the switch assembly 5 and is used to drive the switch component 51 to rotate.

[0067] The switch element 51 is rotatable about a first horizontal axis, meaning that the switch element 51 has a lever-like structure and is rotatably mounted on a fixed bracket inside the main body cavity 1a via a pivot in the middle. One end of the switch element 51 is connected to the floating element 6 by a floating connection, such as a support, hinge, or elastic rod connection.

[0068] When the floating element 6 moves downward due to the drop in water level in the lower water chamber 1c, it causes one end of the switch element 51 to move downward synchronously, thereby causing the entire switch element 51 to rotate around the rotation axis, raising the other end upward. One or both ends of the switch element 51 can be configured to open the passage between the upper water inlet f and the water distribution plate 31, allowing water from the upper water chamber 1b to flow into the water distribution plate 31 and wet the wet curtain assembly 2. Conversely, when the water level in the lower water chamber 1c rises to the set height, the floating element 6 moves upward, causing one end of the switch element 51 to move upward and the other end to press down, closing the water flow channel and stopping water replenishment.

[0069] It should be noted that this structure does not require any electronic control components or complex detection circuits or control systems such as water level sensors. Instead, it relies directly on water level changes, simplifying the product structure and reducing potential failure points.

[0070] Specifically, please refer to Figure 5 and Figure 6In some embodiments, the bottom of the main body cavity 1a is provided with a lower water inlet h that communicates with the upper water inlet f; the switch assembly 5 includes a connector 52, a first sealing structure, and a switch 51. The connector 52 is installed on the lower water inlet h and has a flow channel 52a that communicates with the lower water inlet h; the first sealing structure includes a first sealing part 53 and a second sealing part 54. Both the first sealing part 53 and the second sealing part 54 are movable along the vertical direction, corresponding to the inlet end 52a1 and the outlet end 52a2 of the flow channel 52a, respectively. The flow channel 52a is configured to open and close the inlet end 52a1 and outlet end 52a2 of the flow channel 52a accordingly during its active stroke; the switch 51 is disposed between the lower water inlet h and the water distribution plate 31, the switch 51 is rotatably disposed about a rotation axis in the first horizontal direction, and has a first end 511 and a second end 512 that rotate about its rotation axis and move in the vertical direction, the first end 511 of the switch 51 drives the first sealing part 53 to move, and the second end 512 of the switch 51 drives the second sealing part 54 to move.

[0071] It is understandable that a connector 52 is installed at the lower water inlet h. The connector 52 has a hollow structure, and a flow channel 52a is formed inside it along its extension direction. The flow channel 52a has an inlet end 52a1 and an outlet end 52a2. The inlet end 52a1 and the outlet end 52a2 are arranged at intervals in the second horizontal direction (i.e., perpendicular to the first horizontal direction; for example, if the first horizontal direction is longitudinal, the second horizontal direction is transverse), forming a transversely continuous water flow channel.

[0072] It should be noted that the adapter 52 can be made of corrosion-resistant plastic or metal and other materials with a certain strength. The flow channel 52a allows water to enter at the inlet end 52a1, pass laterally through the adapter 52, and flow out from the outlet end 52a2.

[0073] A first sealing part 53 and a second sealing part 54 are respectively provided on both sides of the adapter 52, which together constitute the first sealing structure. The first sealing part 53 and the second sealing part 54 are both movably arranged above the inlet end 52a1 and the outlet end 52a2 of the flow channel 52a in the vertical direction, and can slide up and down within their active stroke range to realize the opening or closing operation of the inlet and outlet of the flow channel 52a.

[0074] The switch 51 is provided between the lower water inlet h and the water distribution plate 31. The switch 51 is rotatably mounted on a fixed bracket inside the main body cavity 1a about a rotation axis in a first horizontal direction (e.g., longitudinal direction). The switch 51 has a first end 511 and a second end 512, which respectively drive the first sealing part 53 and the second sealing part 54 to move.

[0075] It should be noted that when the switch element 51 rotates around its axis of rotation, its two ends will produce opposite displacement changes in the vertical direction. For example, when the first end 511 of the switch element 51 is lifted upward, it will push the first sealing part 53 upward, opening the inlet end 52a1 of the flow channel 52a; at the same time, the second end 512 is pressed downward, causing the second sealing part 54 to move downward synchronously, so that it is removed from the sealing position of the outlet end 52a2 of the flow channel 52a, thereby realizing the synchronous opening of the inlet end 52a1 and the outlet end 52a2.

[0076] In actual operation, the movement of the switch 51 can be driven by the aforementioned floating member 6 or other mechanical structures. For example, by connecting one end of the switch 51 to the floating member 6, the floating member 6 moves up and down with the change of water level in the lower water chamber 1c, thereby driving the switch 51 to rotate, thus controlling the opening and closing state of the first sealing part 53 and the second sealing part 54.

[0077] By providing a first sealing part 53 and a second sealing part 54 that can move up and down at the inlet end 52a1 and the outlet end 52a2 of the flow channel 52a respectively, and by driving the first sealing part 53 and the second sealing part 54 to move synchronously through the switch 51 that rotates around the first horizontal direction, the inlet and outlet of the flow channel 52a can be opened or closed at the same time, thereby achieving dual sealing control of the water flow channel.

[0078] Furthermore, in order to achieve the automatic reset function of the first sealing part 53, please refer to [further details needed]. Figure 6 In this embodiment, the bottom of the adapter 52 is provided with a clearance opening 52b corresponding to the first end 511 of the switch 51; the switch assembly 5 also includes a first push rod 55 and a first reset member 56. The first push rod 55 extends upward from the clearance opening 52b, passes through the lower water inlet h, and extends into the main body cavity 1a. The first sealing part 53 is located in the main body cavity 1a and is connected to the first push rod 55. The first sealing part 53 is used to seal the lower water inlet h when the first push rod 55 moves downward. When the first end 511 of the switch 51 moves upward, it drives the push rod to move upward to open the lower water inlet h. The first reset member 56 is used to provide a reset force for the first sealing part 53 when it moves downward.

[0079] Understandably, the first push rod 55 extends upward from the relief port 52b, passes through the lower water inlet h and extends into the main body cavity 1a. Its upper end is fixedly connected to the first sealing part 53, which is located directly above the inlet end 52a1 of the flow channel 52a and can open or seal the lower water inlet h when moving up and down.

[0080] When the first end 511 of the switch 51 is rotated upward by an external force, it will push the first push rod 55 to move upward synchronously, thereby causing the first sealing part 53 to disengage from the lower water inlet h and opening the water flow channel; when the switch 51 is reset or triggered to close, the first reset part 56 provided on the first push rod 55 applies downward force to push the first sealing part 53 to press back against the lower water inlet h, thereby achieving automatic sealing.

[0081] It should be noted that there are various ways to connect the first push rod 55 and the adapter 52. In some embodiments, the lower end of the first push rod 55 protrudes into the relief port 52b and forms a sealed sliding fit with the relief port 52b to prevent water in the flow channel 52a from leaking out of the gap.

[0082] When the first end 511 of the switch 51 is subjected to an external force and rotates upward, its front end directly abuts against and pushes the lower end of the first push rod 55, causing it to move upward synchronously, thereby driving the first sealing part 53 to disengage from the lower water inlet h, thus opening the water flow channel.

[0083] In other embodiments, a flexible membrane or other sealing isolation structure can be provided at the clearance port 52b. The membrane can be used to transmit the driving action of the switch 51 on the first push rod 55, thereby achieving indirect linkage.

[0084] Specifically, the switch assembly 5 further includes an elastic membrane 57, the periphery of which is connected to the periphery of the relief opening 52b, and the elastic membrane 57 is deformable at least in the vertical direction; the first end 511 of the switch member 51 abuts against the outer side of the elastic membrane 57 to drive the first push rod 55 located inside the elastic membrane 57 to move upward.

[0085] Understandably, the elastic membrane 57 can deform in the vertical direction, and can produce local depressions or bulges under external force, thereby achieving isolation and linkage control of the internal structure. At the same time, the elastic membrane 57 prevents water from leaking from the relief port 52b into the lower water chamber 1c.

[0086] It should be noted that the material of the elastic membrane 57 is preferably a flexible material with elasticity and good sealing performance, such as silicone or rubber.

[0087] In practical applications, the first end 511 of the switch 51 abuts against the outer surface of the elastic membrane 57. When the switch 51 rotates around the rotation axis and moves upward, its end applies upward pressure to the elastic membrane 57, causing the elastic membrane 57 to deform locally and transmit thrust inward, thereby driving the first push rod 55 located inside the elastic membrane 57 to move upward, causing the first sealing part 53 to disengage from the lower water inlet h and opening the inlet end 52a1 of the flow channel 52a.

[0088] This structure enables the indirect driving of the first push rod 55 by the switch 51, while the sealing property of the elastic membrane 57 effectively prevents water from seeping out from the gap of the drive component, thus improving the waterproof performance and reliability of the overall structure.

[0089] For details, please continue reading Figure 6 In this embodiment, the second end 512 of the switch member 51 is equipped with the second sealing part 54, which is used to seal the outlet end 52a2 of the flow channel 52a when the second end 512 of the switch member 51 moves upward.

[0090] It should be noted that the sealing part is in the form of a block or column structure, and is preferably made of a sealing material with a certain degree of elasticity, such as silicone or rubber, to ensure that it can form a good sealing fit with the outlet end 52a2 of the flow channel 52a.

[0091] When the switch element 51 rotates around the first horizontal direction, its second end 512 will undergo displacement changes in the vertical direction. Specifically, when the second end 512 of the switch element 51 moves upward, it drives the second sealing part 54 to rise synchronously, so that it fits against the sealing surface of the outlet end 52a2 of the flow channel 52a, thereby closing the water flow channel; while when the switch element 51 rotates in the opposite direction and the second end 512 moves downward, the second sealing part 54 descends accordingly, disengages from the sealing position of the outlet end 52a2, and opens the outlet end 52a2 of the flow channel 52a, allowing water to flow through.

[0092] By integrating the second sealing part 54 into the second end 512 of the switch 51, there is no need to set up a separate drive element or a complex transmission mechanism, resulting in a compact structure and reliable operation.

[0093] Further, please refer to Figure 2 and Figure 3 In this embodiment, the top of the switch 51 is recessed with a water receiving groove 51a. The water receiving groove 51a is provided corresponding to the outlet end 52a2 of the flow channel 52a. The water receiving groove 51a is opened downward along its top surface and is located directly below the outlet end 52a2 of the flow channel 52a, and is used to receive the water flowing out from the outlet end 52a2.

[0094] The second sealing part 54 is disposed in the water receiving tank 51a, and its position corresponds to the outlet end 52a2 of the flow channel 52a. When the switch 51 rotates around the rotating shaft, the second sealing part 54 moves up and down with the second end 512 of the switch 51. Specifically, when the second end 512 of the switch 51 moves downward, it drives the second sealing part 54 to move downward synchronously, so that it is separated from the outlet end 52a2 of the flow channel 52a, thereby opening the channel and allowing water to flow into the water receiving tank 51a; and when the second end 512 of the switch 51 moves upward, the second sealing part 54 moves upward accordingly and presses against the sealing surface of the outlet end 52a2 of the flow channel 52a, thereby sealing the outlet end 52a2.

[0095] The water receiving tank 51a is provided laterally through one side of the switch 51, forming a drainage channel so that the water flowing into the water receiving tank 51a can be smoothly guided to the water distribution plate 31 below along the opening, instead of dripping or scattering directly.

[0096] By providing a water receiving trough 51a on the top of the switch 51 and integrating the second sealing part 54 into the water receiving trough 51a, the water flow at the outlet end 52a2 of the flow channel 52a can be guided in an orderly manner. When the second sealing part 54 moves downward, it disengages from the outlet end 52a2, thus opening the channel and allowing water to enter the water receiving trough 51a. Subsequently, through the lateral opening of the water receiving trough 51a, the water flow is smoothly guided to the lower water distribution plate 31, preventing water droplets from splashing and affecting the safe operation of the fan assembly 4.

[0097] In one embodiment, the rotation axis of the switch 51 is located closer to its first end 511 than its second end 512; the second end 512 of the switch 51 is floatingly connected to the floating member 6.

[0098] Specifically, the first end 511 of the switch 51 is closer to the rotating shaft, and the second end 512 is farther from the rotating shaft. Under the premise that the overall material of the switch 51 is uniform and the density is consistent, the length distribution of this solution makes the second end 512 tend to hang down due to its own weight in its natural state, thereby stably supporting it on the floating member 6 and closely following the movement of the floating member 6.

[0099] The second end 512 of the switch element 51 is floatingly connected to the floating element 6 via a flexible connector or hinge structure. The lower end of the floating element 6 extends into the lower water chamber 1c and can move up and down with changes in water level. When the water level drops, causing the floating element 6 to move downward, the second end 512 of the switch element 51 also moves downward, causing the entire switch element 51 to rotate around the rotation axis, which in turn causes the first end 511 to rise, triggering the opening of the water supply channel. When the water level rises again, the floating element 6 moves upward, pushing the second end 512 of the switch element 51 to rise again, causing the first end 511 to move downward, closing the water supply channel.

[0100] In addition, in some alternative embodiments, the counterweights at both ends of the switch 51 can be adjusted, for example, by increasing the mass of the second end 512, so that it can still maintain a natural drooping state without external force, thereby enhancing its responsiveness and stability to the movement of the floating member 6.

[0101] Specifically, the wet curtain assembly 2 is arranged around the periphery of the floating member 6; or, the floating member 6 is arranged on the side of the wet curtain assembly 2.

[0102] Specifically, in the first embodiment, the evaporative cooling pad assembly 2 has a ring-shaped or near-ring-shaped structure and is arranged around the periphery of the floating member 6. The floating member 6 is located in the central region of the main body cavity 1a, with its lower end extending into the drain cavity 1c, and can float up and down with changes in water level; while the evaporative cooling pad assembly 2 surrounds it, forming an enclosed evaporative humidification area. This arrangement makes full use of the central space, making the overall layout more compact and effectively reducing the overall volume of the appliance 100.

[0103] In the second embodiment, please refer to Figure 1 , Figure 2 and Figure 5 The floating element 6 is not located inside the evaporative cooling pad assembly 2, but rather on one side of the assembly, close to it but not overlapping or intersecting it. The floating element 6 retains its original function, controlling the water supply by actuating the switch 51 based on water level changes. Since the floating element 6 does not occupy the internal space of the evaporative cooling pad assembly 2, it does not affect the air duct g structure defined by the assembly, thus ensuring smooth airflow and stable humidification efficiency.

[0104] Specifically, in this embodiment, the upper end of the water distribution plate 31 is recessed with an annular groove 31b, and a plurality of water distribution holes 31a are provided on the side wall of the annular groove 31b. The plurality of water distribution holes 31a are arranged at intervals along the circumference of the water distribution plate 31 and are provided corresponding to the top of the wet curtain assembly 2.

[0105] Understandably, the upper surface of the water distribution plate 31 is recessed with an annular groove 31b, which extends circumferentially around the central axis of the water distribution plate 31, forming a water collection and guiding area. When water flows into the water distribution plate 31 from the upper water inlet f, it first enters the annular groove 31b for temporary storage and flows along the annular groove 31b under the action of gravity; then it is evenly sprayed or dripped onto the top of the wet curtain assembly 2 through each water distribution hole 31a, achieving comprehensive wetting of the wet curtain. Because the water distribution holes 31a are evenly distributed and arranged in a circular pattern, the water flow can cover the entire top area of ​​the wet curtain assembly 2, avoiding local dry areas and thus improving humidification efficiency.

[0106] In one embodiment, please refer to Figure 4 , Figure 5and Figure 7 The main body 1 includes a main shell 11 and an upper water tank assembly 12. The main shell 11 forms the main body cavity 1a. The upper water tank assembly 12 is detachably installed on the top of the main shell 11. The upper water tank assembly 12 includes an upper water tank 121 and a second sealing structure 122. The upper water tank 121 has the upper water cavity 1b. The second sealing structure 122 is used to open and seal the upper water inlet f.

[0107] It is understood that the upper water tank 121 forms the upper water cavity 1b inside, which is used to store the water source to be supplied to the wet curtain assembly 2; an upper water inlet f is provided at the bottom of the upper water tank 121, which is used to transport water to the lower water distribution structure 3 or switch assembly 5.

[0108] The second sealing structure 122 is disposed between the upper water tank 121 and the main housing 11, and is usually made of an elastic material (such as silicone or rubber). It can automatically open or close the upper water inlet f as the upper water tank 121 is installed. When the upper water tank assembly 12 is installed in place, the second sealing structure 122 releases the seal on the upper water inlet f, allowing water in the upper water chamber 1b to flow smoothly into the water supply channel; and when the upper water tank 121 is removed, the second sealing structure 122 automatically resets and closes the upper water inlet f to prevent residual water from overflowing.

[0109] By setting the upper water tank assembly 12 as a detachable structure and setting a second sealing structure 122 therein, a reliable connection and automatic sealing control between the upper water chamber 1b and the water supply system of the main body 1 are achieved.

[0110] Specifically, please refer to Figure 7 In this embodiment, the second sealing structure 122 includes a second push rod 1221, a third sealing part 1222, and a second reset member 1223. The second push rod 1221 passes through the upper water inlet f and extends into the upper water chamber 1b. The third sealing part 1222 is located in the upper water chamber 1b and connected to the second push rod 1221. The third sealing part 1222 is used to seal the upper water inlet f when the second push rod 1221 moves downward. The second reset member 1223 is used to provide a reset force when the third sealing part 1222 moves downward. The top of the main housing 11 is provided with a lifting part 111 corresponding to the upper water inlet f. The lifting part 111 is used to drive the second push rod 1221 to move the third sealing part 1222 upward when the upper water tank assembly 12 is installed on the main housing 11, so as to open the upper water inlet f.

[0111] It is understandable that the third sealing part 1222 is made of a sealing material with a certain elasticity (such as silicone or rubber), located in the upper water cavity 1b, and can move up and down with the second push rod 1221 to achieve sealing or opening of the upper water inlet f.

[0112] The second reset element 1223 can be a spring or other elastic element, and its function is to push the third sealing part 1222 downward when there is no external force, so that it fits tightly against the upper water inlet f, thereby achieving the sealing function.

[0113] Because a lifting part 111 is provided at the top of the main housing 11 corresponding to the position of the upper water inlet f, the lifting part 111 can be a protruding columnar structure or a sloping guide structure. When the user installs the upper water tank assembly 12 to the top of the main housing 11, the lifting part 111 will abut against the bottom of the second push rod 1221, and push the second push rod 1221 upward with the assembly action, causing the third sealing part 1222 to move upward synchronously, disengaging from the sealing position of the upper water inlet f, thereby automatically opening the water supply channel, so that the water in the upper water chamber 1b can flow smoothly into the lower water distribution structure 3.

[0114] When the user needs to disassemble the upper water tank 121, he / she simply removes it from the main housing 11. At this time, the lifting part 111 no longer applies thrust, and the second reset part 1223 drives the third sealing part 1222 to press the upper water inlet f again, completing the automatic sealing and preventing residual water from overflowing.

[0115] This setup eliminates the need for users to manually operate valves or switches; switching water supply channels can be completed with simple installation or disassembly, thus improving ease of use.

[0116] The appliance 100 of this utility model can be a household device with air conditioning function, such as a fan cooler, humidifier, or humidifier-purifier combo machine.

[0117] Taking a cooling fan as an example, it contains a fan and a wet curtain assembly 2. The fan blows air across the moist wet curtain, causing the moisture to evaporate and achieving the dual effects of cooling and humidification. The water supply structure provided by this utility model can supply water by gravity between the upper water chamber 1b and the lower water chamber 1c, and in conjunction with the water distribution plate 31, evenly distribute water to the top of the wet curtain, ensuring that the wet curtain remains continuously moist and improving evaporation efficiency.

[0118] For humidifiers, this structure is particularly suitable for high-capacity humidification products with a pump-free design. By eliminating the traditional water pump and using a mechanically controlled switching assembly 5 linked with the floating element 6, blockages caused by water quality issues are effectively avoided.

[0119] In a humidifier and air purifier combo, the humidification structure can work in conjunction with the air purification module to provide clean air while regulating indoor humidity.

[0120] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electric appliance having a humidifying function, characterized by comprising: include: The main body has a main body cavity, and an upper water cavity and a lower water cavity located on the upper and lower sides of the main body cavity respectively. The main body is provided with an air inlet and an air outlet. The air inlet is located above the air outlet. The bottom of the upper water cavity is provided with an upper water inlet. The wet curtain assembly is disposed in the main body cavity, and its lower end extends into the drain cavity. The wet curtain assembly defines an air duct that extends vertically, and the air duct is configured to connect the air inlet and the air outlet. The water distribution structure includes a water distribution plate disposed in the main cavity and located on the upper side of the wet curtain assembly, and the water distribution plate is provided with water distribution holes corresponding to the wet curtain assembly; A fan assembly is disposed in the main cavity and located on the upper side of the water distribution structure, for driving airflow to enter from the air inlet and blow out from the air outlet; as well as, A switch assembly is located between the upper water inlet and the water distribution plate to control the flow of water between the upper water inlet and the water distribution plate.

2. The appliance of claim 1, wherein, The electrical appliance also includes a floating element located below the switch assembly, the lower end of which extends into the drain cavity; The switch assembly includes a switch element rotatably disposed about a rotation axis in a first horizontal direction to control the flow of water between the upper water inlet and the water distribution plate during its rotational stroke. One end of the switch element is floatingly connected to the floating element so as to be driven to rotate by the floating element.

3. The appliance of claim 1 or 2, wherein The bottom of the main cavity is provided with a lower water inlet that is connected to the upper water inlet; The switching assembly includes: An adapter is installed at the lower water inlet and has a flow channel that communicates with the lower water inlet; The first sealing structure includes a first sealing part and a second sealing part, both of which are movably disposed along a vertical direction corresponding to the inlet and outlet ends of the flow channel, respectively, so as to open and close the inlet and outlet ends of the flow channel during their respective movements; and, A switch element is disposed between the lower water inlet and the water distribution plate. The switch element is rotatably arranged about a rotation axis in a first horizontal direction, and has a first end and a second end that rotate about its rotation axis and move in the vertical direction. The first end of the switch element drives the first sealing part to move, and the second end of the switch element drives the second sealing part to move.

4. The appliance of claim 3, wherein, The bottom of the adapter has a clearance opening corresponding to the first end of the switch; The switch assembly further includes a first push rod and a first reset member. The first push rod extends upward from the relief opening, passes through the lower water inlet, and extends into the main body cavity. The first sealing part is located in the main body cavity and is connected to the first push rod. The first sealing part is used to seal the lower water inlet when the first push rod moves downward. When the first end of the switch is moved upward, it drives the top rod to move upward to open the lower water inlet. The first reset member is used to provide a reset force when the first sealing part moves downward.

5. The appliance of claim 4, wherein, The switch assembly further includes an elastic membrane, the periphery of which is connected to the periphery of the relief opening, and the elastic membrane is deformable at least in the vertical direction; The first end of the switch abuts against the outer side of the elastic membrane to drive the first push rod located inside the elastic membrane to move upward.

6. The appliance of claim 3, wherein, The second sealing part is installed at the second end of the switch, and the second sealing part is used to seal the outlet end of the flow channel when the second end of the switch moves upward.

7. The appliance of claim 6, wherein, The top of the switch is recessed with a water receiving groove, which is provided corresponding to the outlet end of the flow channel, and the second sealing part is provided in the water receiving groove; The water receiving trough is provided laterally through one side of the switch component to guide the water in the water receiving trough to the water distribution plate.

8. The appliance of claim 2, wherein, The rotation axis of the switch is positioned closer to its first end than its second end; The second end of the switch is floatingly connected to the floating element.

9. The appliance of claim 2, wherein, The evaporative cooling pad assembly is arranged around the periphery of the floating component; or, The floating element is located on the side of the wet curtain assembly.

10. The appliance of claim 1, wherein, The upper end of the water distribution plate is recessed with an annular groove, and a plurality of water distribution holes are provided on the side wall of the annular groove. The plurality of water distribution holes are arranged at intervals along the circumference of the water distribution plate and are provided corresponding to the top of the wet curtain assembly.

11. The appliance of claim 1, wherein, The subject includes: The main housing, within which the main body cavity is formed; and, The upper water tank assembly is detachably installed on the top of the main housing. The upper water tank assembly includes an upper water tank and a second sealing structure. The upper water tank has the upper water chamber, and the second sealing structure is used to open and seal the upper water inlet.

12. The appliance of claim 11, wherein, The second sealing structure includes: The second push rod is inserted through the upper water inlet and extends into the upper water cavity; The third sealing part is located in the upper water chamber and connected to the second push rod. The third sealing part is used to seal the upper water inlet when the second push rod moves downward. The second reset member is used to provide a reset force when the third sealing part moves downward; The top of the main housing is provided with a lifting part corresponding to the upper water inlet. The lifting part is used to drive the second push rod to move the third sealing part upward when the upper water tank assembly is installed on the main housing, so as to open the upper water inlet.

13. The appliance of claim 1, wherein, The electrical appliances include air coolers, humidifiers, or humidifier-purifier combos.

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