Humidifier

Abstract

The utility model provides a humidifier. The humidifier comprises a shell assembly and a humidifier body, the air duct surrounding plate is installed in the shell assembly, and an air duct is arranged in the air duct surrounding plate; the upper cover assembly is arranged at the air outlet end of the air duct coaming, and an air outlet hole communicating with the air duct is formed in the upper cover assembly; the fan assembly is mounted in the air duct; the water adding detection device is installed between the upper cover assembly and the fan assembly and used for detecting whether the humidifier adds water through the air outlet hole or not; and the main control board is mounted between the air duct coaming and the shell assembly, is connected with the water adding detection device, and can control the fan assembly to work according to a detection result of the water adding detection device. According to the humidifier, whether water is added into the humidifier through the air outlet hole or not can be detected, the fan assembly is controlled to work according to the detection result, and therefore follow-up control over the humidifier is facilitated.

Description

Technical Field

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

[0002] In related solutions, in order to meet the user's need to add water without removing the water tank, the humidifier generally needs to be designed with a special water inlet at the air outlet grille of the entire machine. At the same time, a special water filling channel needs to be designed inside the entire machine. When adding water, the user needs to align with the top water inlet. The water added by the user flows into the water tank through a specific water filling channel for storage and circulation humidification. The presence of the water inlet on the top of the fuselage will limit the appearance and size of the fuselage. At the same time, the need to design a special water filling channel inside will also lead to an increase in design costs. Moreover, due to the limitation of the top air outlet volume, the water inlet is generally relatively small. Users need to be more careful when adding water to avoid water flowing into the air duct from the air outlet grille and damaging the motor, which is not a user-friendly experience. In order to solve the above problems, related solutions have proposed a humidifier that adds water directly from the top air outlet grille, and the added water flows into the water tank through the air duct. However, for this type of humidifier, how to detect whether the user is adding water through the air outlet grille has become a problem that urgently needs to be solved. Utility Model Content

[0003] The utility model aims to at least solve the problem in the prior art or related art of how to detect whether the user is adding water through the air outlet grille.

[0004] Therefore, an object of the present invention is to provide a humidifier.

[0005] To achieve the above-mentioned purpose, the technical solution of the first aspect of the present invention provides a humidifier, including: a shell assembly; a duct enclosure installed in the shell assembly, an air duct is provided in the duct enclosure; an upper cover assembly is arranged at the air outlet end of the duct enclosure, and an air outlet hole connected to the air duct is provided on the upper cover assembly; a fan assembly is installed in the air duct; a water addition detection device is installed between the upper cover assembly and the fan assembly, and is used to detect whether the humidifier is added with water through the air outlet hole; a main control board is installed between the duct enclosure and the shell assembly, and is connected to the water addition detection device, and can control the operation of the fan assembly according to the detection result of the water addition detection device.

[0006] The humidifier provided according to the technical solution of the present invention includes a shell assembly, an air duct enclosure, an upper cover assembly, a fan assembly, a water addition detection device and a main control board. The air duct enclosure is installed in the shell assembly, and an air duct is provided in the air duct enclosure. The upper cover assembly is arranged at the air outlet end of the air duct enclosure, and an air outlet hole connected to the air duct is provided on the upper cover assembly, so that the water vapor in the air duct can be discharged through the air outlet hole. The fan assembly is arranged in the air duct, so that the fan assembly can be used to allow external air to enter from the air duct enclosure and pass through the internal wet curtain and then be discharged from the air outlet hole, thereby achieving the humidification effect of the air. At the same time, the present application is provided with a water addition detection device between the upper cover assembly and the fan assembly, and a main control board is provided between the air duct enclosure and the shell assembly, and the two are connected. The water addition detection device can detect whether the humidifier is adding water through the air outlet hole, and can generate a water addition signal based on the detection result. The main control board can control the operation of the fan assembly according to the detection result, thereby facilitating the subsequent control of the humidifier. For example, when adding water through the air outlet, the fan assembly can be controlled to not rotate, preventing the fan assembly from stirring up the water in the air duct, thereby reducing the impact of water in the air duct on the fan. At the same time, this solution places the humidifier's electrical control board between the air duct enclosure and the outer shell assembly, that is, the electrical control board is placed outside the air duct. This prevents water in the air duct from affecting the operation of the electrical control board when adding water through the air duct, thereby reducing the waterproof requirements of the electrical control board and the probability of the electrical control board coming into contact with water.

[0007] The water flow detection device can be configured as a capacitive sensor or a pressure sensor as required.

[0008] In addition, the humidifier provided in this application also has the following additional technical features:

[0009] In some embodiments, optionally, the humidifier further includes: a wet curtain, which is installed in the outer shell assembly and is located on the side of the fan assembly away from the upper cover assembly. An air inlet is provided at the position of the outer shell assembly corresponding to the wet curtain. The fan assembly is used to allow air outside the outer shell assembly to enter through the air inlet and pass through the wet curtain and then be discharged from the air outlet; a water tank is provided in the outer shell assembly for supplying water to the wet curtain.

[0010] In this embodiment, the humidifier also includes a wet curtain and a water tank, which are installed within the housing assembly. The wet curtain is located on the side of the fan assembly away from the upper cover assembly, that is, the fan assembly is located between the wet curtain and the upper cover assembly. The housing assembly is provided with an air inlet hole at the location corresponding to the wet curtain. This allows the fan assembly to allow external air to enter through the air inlet hole, pass through the wet curtain, and then exit through the air outlet hole, thereby humidifying the air. To ensure sufficient moisture on the wet curtain, a water tank is also provided within the housing assembly, which supplies water to the wet curtain.

[0011] In some embodiments, optionally, the water addition detection device includes: a first circuit board, mounted on the upper cover assembly, and a conductive structure is provided on the first circuit board; a conductive member, disposed on the upper cover assembly and in contact with the conductive structure, for sensing the water flow added from the air outlet; the first circuit board can determine whether the humidifier is adding water through the air outlet based on the sensing result of the conductive member.

[0012] In this embodiment, the capacitance value of the conductive member can change based on the water flow inside the upper cover assembly. This is because when water is added to the air duct through the air outlet, the water, as a conductor, changes the capacitance value of the conductive member. This means that the capacitance value of the conductive member is different when the humidifier is in the upper water-adding state and the non-upper water-adding state. The first circuit board forms a loop with the conductive member via the conductive structure. The first circuit board is provided with a detection circuit for detecting the capacitance value of the conductive member and determining whether the humidifier is being added with water through the air outlet based on the detected capacitance value.

[0013] For example, the conductive member may be a conductive sponge, or the conductive member may be replaced by other structures capable of sensing water flow, such as a spring.

[0014] In some embodiments, optionally, the humidifier further includes an inner cover and a motor bracket, the motor bracket is located inside the air duct enclosure, the inner cover is mounted on the upper cover assembly, and a closed cavity is formed between the inner cover and the motor bracket, the first circuit board is located in the closed cavity and is mounted on the inner cover, and the conductive member is installed between the first circuit board and the inner cover.

[0015] In this embodiment, the upper cover assembly mainly includes structures such as the air outlet grille. The inner cover is installed on the upper cover assembly and forms a closed closed cavity with the motor bracket. The first circuit board and the conductive member are installed in the closed cavity, thereby ensuring the closed installation of the first circuit board and the conductive member and preventing the first circuit board and the conductive member from contacting water in the air duct. In this arrangement, the first circuit board and the conductive member are indirectly installed on the upper cover assembly through the inner cover. Of course, in other solutions, a closed cavity structure can also be formed on the inner side of the upper cover assembly to achieve a sealed installation of the first circuit board and the conductive member.

[0016] To ensure that the conductive element can sense the water flow, the thickness of the housing between the conductive element and the air duct should not be too thick. For example, at least a portion of the inner cover (this portion can be called the water receiving portion) can be positioned inside the upper cover assembly and spaced apart from the upper cover assembly in the height direction. Furthermore, the water receiving portion of the inner cover can be positioned corresponding to the air outlet on the upper cover assembly so that at least part of the water added through the air outlet can fall onto the inner cover. The conductive element is mounted inside the water receiving portion of the inner cover.

[0017] In some embodiments, optionally, the conductive structure includes a plurality of aluminum foils and / or a plurality of copper foils.

[0018] In this embodiment, the conductive structure can be configured as multiple aluminum foils and / or multiple copper foils. Aluminum foil and copper foil have good conductivity and a certain degree of flexibility, making them easy to configure and connect to conductive parts. Furthermore, configuring multiple aluminum foils and / or copper foils can further ensure the stability of the connection.

[0019] In some embodiments, optionally, the shell assembly includes: a fixed bracket, the air duct enclosure is installed on the fixed bracket, a first positioning groove is provided on the fixed bracket, a second positioning groove is provided on the air duct enclosure, a main control board is arranged along the height direction of the humidifier, and both sides of the main control board along the height direction of the humidifier are respectively abutted against the first positioning groove and the second positioning groove; an upper shell, installed on the fixed bracket and arranged around the air duct enclosure; a bottom shell, installed on the side of the fixed bracket away from the upper shell, and a water tank and a wet curtain are installed in the bottom shell.

[0020] In this embodiment, the fixed bracket and the upper shell are the shell structure of the upper component. The bottom shell and the water tank and wet curtain inside it constitute the bottom component. During installation, the fixed bracket and the bottom component can be detachably connected to achieve a detachable connection between the upper component and the bottom component. The air duct enclosure is installed on the fixed bracket, and a relatively closed electrical compartment is formed by the air duct enclosure, the fixed bracket, the upper shell and the upper cover assembly. The electric control board is installed in the electrical compartment, thereby achieving closed protection of the electrical compartment. In addition, a first positioning groove is provided on the fixed bracket, and a second positioning groove is provided on the air duct enclosure. The main control board is arranged along the height direction of the humidifier, and the two sides of the main control board along the height direction of the humidifier are respectively abutted against the first positioning groove and the second positioning groove, thereby achieving the positioning installation of the main control board. Installation through the positioning groove facilitates the disassembly of the main control board. At the same time, this arrangement can achieve vertical installation of the main control board, thereby reducing the space occupied by the main control board and reducing the overall volume of the humidifier.

[0021] In some embodiments, optionally, the main control board and the water addition detection device are electrically connected through an electrical connection line, and a wire passage and a wire outlet hole sealed and connected to the wire passage are provided on the air duct enclosure. One end of the electrical connection line is connected to the water addition detection device, and the other end of the electrical connection line is connected to the main control board after passing through the wire passage and the wire outlet hole.

[0022] In this embodiment, the main control board and the water addition detection device are electrically connected via an electrical cable, ensuring communication. The duct enclosure is provided with a cable passage and a cable outlet hole sealed and connected to the cable passage. One end of the cable is connected to the water addition detection device, and the other end passes through the cable passage and the cable outlet hole to connect to the main control board. The cable passage facilitates cable routing, decluttering the cables and ensuring that the portion of the wiring harness within the duct is protected from moisture.

[0023] In some embodiments, optionally, the duct enclosure includes: a motor bracket, the motor bracket includes a motor mounting cavity and a baffle portion located around the motor mounting cavity, the fan assembly includes a motor and a fan, the motor is installed in the motor mounting cavity, and is connected to the fan to drive the fan to move; along the radial direction of the motor, the motor mounting cavity and the baffle portion are spaced apart, and the motor mounting cavity and the baffle portion are connected by a plurality of guide vanes and at least one wire-passing bracket, and the plurality of guide vanes and at least one wire-passing bracket are distributed at intervals along the circumference of the motor mounting cavity. The guide vanes are tilted relative to the axial direction of the motor. The wire-passing channel is provided on the wire-passing bracket. Exemplarily, the number of the wire-passing bracket is one.

[0024] In this embodiment, the air duct enclosure includes a motor bracket, which includes a motor mounting cavity and a baffle portion located around the motor mounting cavity. The fan assembly includes a motor and a fan, and the motor is mounted in the motor mounting cavity of the motor bracket. The baffle portion is a part of the air duct, and the motor mounting cavity and the baffle portion are spaced apart along the radial direction of the motor, so that the upper end of the air duct is not closed. At the same time, an inclined guide vane is provided between the motor mounting cavity and the baffle portion, and the airflow can be guided by the guide vane to facilitate adjustment of the direction and size of the airflow discharged from the air duct. In order to facilitate wiring, a wire bracket is provided between the motor mounting cavity and the baffle portion, and the wire bracket and the multiple guide vanes are spaced apart along the entire circumference of the motor mounting cavity, that is, any two adjacent guide vanes are spaced apart, and the wire bracket and the guide vane adjacent to it are also spaced apart. It can also be understood that in this application, one of the guide vanes is converted into a wire bracket, so that wiring can be carried out through the wire bracket, thereby simplifying the wiring structure.

[0025] In some embodiments, optionally, the outer wall surface of the wire-passing bracket facing away from the air outlet is an arc-shaped surface, thereby avoiding the wire-passing bracket from blocking the wind, reducing wind resistance, and making the airflow flow smoother.

[0026] In some embodiments, optionally, the air duct enclosure further includes a volute, and the motor bracket is installed on the side of the volute close to the air outlet. The volute and the motor bracket form an air duct, and a wire clamping groove connected to the wire outlet is provided on the baffle portion or the volute, and the electrical connection line extending from the wire outlet can be wired along the wire clamping groove to the main control board.

[0027] In this embodiment, the air duct enclosure includes a motor bracket and a volute, and the motor bracket includes a motor mounting cavity and a baffle portion located around the motor mounting cavity. The fan assembly includes a motor and a fan, and the motor is installed in the motor mounting cavity of the motor bracket. The baffle portion, guide vanes, and the outer wall of the mounting cavity of the motor bracket are used to form an air duct with the volute, the motor is installed in the motor mounting cavity, and the fan is installed in the air duct surrounded by the volute and the baffle portion. In addition, in order to guide and fix the electrical connection wires outside the air duct, a wire clamping groove connected to the wire outlet hole is provided on the baffle portion or the volute, and one end of the wire clamping groove can extend to the vicinity of the main control board. During installation, the electrical connection wire can be clamped in the wire clamping groove, so that the electrical connection wire between the water addition detection device and the main control board can be fixed, making the wiring inside the humidifier more concise.

[0028] In some embodiments, optionally, the main control board is connected to the fan assembly and is used to control the fan assembly to stop working when the water addition detection device detects that the humidifier is adding water through the air outlet.

[0029] In this embodiment, the main control board is connected to the fan assembly, and can control the fan assembly to stop working when the water addition detection device detects that the humidifier is adding water through the air outlet, so as to prevent the fan assembly from stirring the water in the air duct. In this way, the water in the air duct can be prevented from splashing everywhere and causing water to enter the motor, thereby reducing the risk of water entering the motor.

[0030] In some embodiments, the humidifier may optionally further include: a wet curtain bracket, which is installed in the housing assembly and includes a receiving plate, a first limiting portion and a second limiting portion are provided on the receiving plate, the second limiting portion is located on the inner side of the first limiting portion along the radial direction of the wet curtain bracket, and a water outlet hole and a first overflow hole are also provided on the receiving plate, the water outlet hole and the first overflow hole are located on the inner side of the second limiting portion, and the entrance of the first overflow hole is located higher than the position of the water outlet hole; the wet curtain is installed on the receiving plate and is limitedly installed between the first limiting portion and the second limiting portion, and water flowing out of the wet curtain can flow back to the water tank through the first overflow hole and / or the water outlet hole; a filtering device is installed in the housing assembly and is provided at the water outlet, and water discharged from the water outlet is filtered by the filtering device and flows into the water tank; wherein, along the radial direction of the wet curtain bracket, the water outlet hole and the first overflow hole are located on the inner side of the second limiting portion.

[0031] In this embodiment, the humidifier further includes a wet curtain bracket and a filter device. The wet curtain bracket is mounted within the housing assembly. The wet curtain bracket includes a receiving plate. The wet curtain is mounted on the receiving plate. The receiving plate is provided with a first limiting portion and a second limiting portion. The second limiting portion is located inwardly of the first limiting portion along the radial direction of the wet curtain bracket. The wet curtain limiter is installed between the first limiting portion and the second limiting portion. This allows for limiting the inner and outer sides of the wet curtain, thereby better securing the wet curtain. The receiving plate is also provided with a water outlet and a first overflow hole. The water outlet and the first overflow hole are located inwardly of the second limiting portion, i.e., the water outlet and the first overflow hole avoid the wet curtain, thereby preventing the water outlet and the first overflow hole from being blocked by the wet curtain. The receiving plate can collect water that falls from the wet curtain, thereby allowing the water that falls from the wet curtain to flow into the water tank through the water outlet or the first overflow hole on the receiving plate. Because the entrance of the first overflow hole is located at a higher position than the outlet hole in the height direction, when there is less water on the receiving plate, water will flow out of the outlet hole first. In other words, when the product is working normally, the water falling from the wet curtain will basically be discharged from the outlet hole. Therefore, when a filter device is installed at the outlet hole, it can filter the water falling from the wet curtain, thereby removing impurities from the water in the water tank, allowing the water in the water tank to be recycled and preventing impurities in the water from clogging the water pump, water pipes and other circulation circuits, causing the entire machine to malfunction.

[0032] In some embodiments, the humidifier may optionally further include: a water flow detection device, disposed at the first overflow hole, for detecting whether water overflows from the first overflow hole; the main control board is also used to determine that the filter device is abnormal and issue a prompt when the water flow detection device detects that water overflows from the first overflow hole and the water adding detection device detects that the humidifier is adding water through the air outlet.

[0033] In this embodiment, a water flow detection device is provided at the first overflow hole, which can detect whether there is water flow at the first overflow hole, and generate an overflow signal when there is water flow at the first overflow hole, and then determine whether the water outlet is blocked based on the overflow signal, so as to determine whether the filter device needs to be replaced based on the overflow signal. In this way, the replacement prompt of the filter device is issued through the overflow signal, which can make the prompt more accurate, and can avoid the waste caused by frequent replacement of the filter device due to premature prompts, and can also avoid the problem of untimely replacement of the filter device due to late prompts. At the same time, the main control board can also detect water overflow from the first overflow hole when the water flow detection device detects that the water addition detection device detects that the humidifier is adding water through the air outlet, determine that the filter device is abnormal, and issue a prompt to facilitate user operation.

[0034] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 This is one of the partial structural diagrams of the humidifier in the embodiment of the present utility model;

[0037] Figure 2 This is the second partial structural diagram of the humidifier in the embodiment of the present utility model;

[0038] Figure 3 This is the third partial structural diagram of the humidifier in the embodiment of the present utility model;

[0039] Figure 4 This is the fourth schematic diagram of the partial structure of the humidifier in the embodiment of the present utility model;

[0040] Figure 5 It is an exploded view of a part of the structure of the humidifier in the embodiment of the present utility model;

[0041] Figure 6 This is the fifth partial structural diagram of the humidifier in the embodiment of the present utility model;

[0042] Figure 7 This is the sixth partial structural diagram of the humidifier in the embodiment of the present utility model;

[0043] Figure 8 This is the seventh partial structural diagram of the humidifier in the embodiment of the present utility model;

[0044] Figure 9 This is the eighth partial structural diagram of the humidifier in the embodiment of the present utility model;

[0045] Figure 10 This is a ninth schematic diagram of a partial structure of a humidifier in an embodiment of the present utility model;

[0046] Figure 11 This is a tenth schematic diagram of a partial structure of a humidifier in an embodiment of the present utility model;

[0047] Figure 12 This is the eleventh partial structural diagram of the humidifier in the embodiment of the present utility model;

[0048] Figure 13 is an exploded view of a humidifier in an embodiment of the present utility model;

[0049] Figure 14 1 is a schematic structural diagram of a humidifier in an embodiment of the present utility model;

[0050] Figure 15It is a structural schematic diagram of the wet curtain bracket of the humidifier in the embodiment of the present utility model.

[0051] in, Figures 1 to 15 The corresponding relationship between the reference numerals and component names is as follows:

[0052] 1 Humidifier, 10 Inner cover, 11 Housing assembly, 111 Air inlet, 112 Fixing bracket, 1121 First positioning slot, 113 Upper housing, 114 Bottom housing, 115 Filter, 116 Water flow detection device, 12 Duct panel, 121 Duct, 122 Second positioning slot, 123 Wire passage, 124 Wire outlet, 125 Motor bracket, 1251 Motor mounting cavity, 1252 Baffle, 1253 Guide vane, 1254 Wire passage Bracket, 126 volute, 1261 wire groove, 13 upper cover assembly, 131 air outlet, 14 fan assembly, 142 motor, 144 fan, 15 water addition detection device, 151 first circuit board, 1511 conductive structure, 152 conductive part, 16 main control board, 17 wet curtain, 18 water tank, 19 wet curtain bracket, 191 receiving plate, 1911 first limiting part, 1912 second limiting part, 1913 water outlet, 1914 first overflow hole. DETAILED DESCRIPTION

[0053] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0055] Refer to the following Figures 1 to 15 To describe the humidifier provided in the embodiments of the present application.

[0056] like Figures 1 to 15As shown, an embodiment of the first aspect of the present invention provides a humidifier 1, comprising a shell assembly 11, an air duct enclosure 12, an upper cover assembly 13, a fan assembly 14, a water addition detection device 15 and a main control board 16. The air duct enclosure 12 is installed in the shell assembly 11, and an air duct 121 is provided in the air duct enclosure 12. The upper cover assembly 13 is arranged at the air outlet end of the air duct enclosure 12. An air outlet hole 131 connected to the air duct 121 is provided on the upper cover assembly 13. The fan assembly 14 is installed in the air duct 121. The water addition detection device 15 is installed between the upper cover assembly 13 and the fan assembly 14, and is used to detect whether the humidifier 1 is added with water through the air outlet hole 131. The main control board 16 is installed between the air duct enclosure 12 and the shell assembly 11, and is connected to the water addition detection device 15, and can control the operation of the fan assembly 14 according to the detection result of the water addition detection device 15.

[0057] According to an embodiment of the present invention, a humidifier 1 is provided, which includes a housing assembly 11, an air duct enclosure 12, an upper cover assembly 13, a fan assembly 14, a water addition detection device 15 and a main control board 16. The air duct enclosure 12 is installed in the housing assembly 11, and an air duct 121 is provided in the air duct enclosure 12. The upper cover assembly 13 is arranged at the air outlet end of the air duct enclosure 12, and an air outlet hole 131 connected to the air duct 121 is provided on the upper cover assembly 13, so that the water vapor in the air duct 121 can be discharged through the air outlet hole 131. The fan assembly 14 is arranged in the air duct 121, so that the fan assembly 14 can be used to allow external air to enter from the air duct enclosure 12 and pass through the internal wet curtain 17 and then be discharged from the air outlet hole 131, thereby achieving the humidification of the air. At the same time, the present application is provided with a water addition detection device 15 between the upper cover assembly 13 and the fan assembly 14, and a main control board 16 is provided between the air duct enclosure 12 and the outer shell assembly 11, and the two are connected. The water addition detection device 15 can detect whether the humidifier 1 is added with water through the air outlet 131, and generate a water addition signal according to the detection result. The main control board 16 can receive the water addition signal and control the fan assembly 14 to work based on the water addition signal, thereby facilitating the subsequent control of the humidifier 1. For example, when water is added through the air outlet 131, the fan assembly 14 can be controlled not to rotate to prevent the fan assembly 14 from stirring the water in the air duct 121, thereby reducing the impact of the water in the air duct 121 on the fan. At the same time, this solution sets the electric control board of the humidifier 1 between the air duct enclosure 12 and the outer shell assembly 11, that is, the electric control board is set on the outside of the air duct 121. In this way, when water is added through the air duct 121, the water in the air duct 121 can be prevented from affecting the operation of the electric control board, thereby reducing the waterproof requirements of the electric control board and reducing the probability of the electric control board coming into contact with water.

[0058] in, Figure 1 The arrows in the figure indicate the flow path of the gas.

[0059] In some embodiments, the humidifier 1 optionally further includes a wet curtain 17 and a water tank 18. The wet curtain 17 is mounted within the housing assembly 11, on the side of the fan assembly 14 away from the upper cover assembly 13. An air inlet 111 is provided in the portion of the housing assembly 11 corresponding to the wet curtain 17. The fan assembly 14 is configured to allow air outside the housing assembly 11 to enter through the air inlet 111, pass through the wet curtain 17, and be discharged through the air outlet 131. The water tank 18 is disposed within the housing assembly 11 to supply water to the wet curtain 17.

[0060] In this embodiment, the humidifier 1 further includes a wet curtain 17 and a water tank 18. These are mounted within the housing assembly 11. The wet curtain 17 is located on the side of the fan assembly 14 away from the upper cover assembly 13, that is, the fan assembly 14 is positioned between the wet curtain 17 and the upper cover assembly 13. An air inlet 111 is provided in the portion of the housing assembly 11 corresponding to the wet curtain 17. This allows the fan assembly 14 to allow external air to enter through the air inlet 111, pass through the wet curtain 17, and be discharged through the air outlet 131, thereby humidifying the air. To ensure sufficient moisture on the wet curtain 17, a water tank 18 is also provided within the housing assembly 11, through which water is supplied to the wet curtain 17.

[0061] In some embodiments, optionally, as Figure 9 、 Figure 10 and Figure 11 As shown, the water addition detection device 15 includes a first circuit board 151 and a conductive member 152. The first circuit board 151 is mounted on the upper cover assembly 13, and a conductive structure 1511 is provided on the first circuit board 151. The conductive member 152 is arranged on the inner side of the upper cover assembly 13 and contacts the conductive structure 1511, so that an electrical connection between the conductive member 152 and the first circuit board 151 can be achieved. Exemplarily, the conductive member 152 is in a state of being compressed by the first circuit board 151. At the same time, the conductive member 152 can sense the water flow added to the air duct from the air outlet 131. The first circuit board 151 can determine whether the humidifier is adding water through the air outlet 131 based on the sensing result of the conductive member 152.

[0062] Among them, the capacitance value on the conductive member 152 can change based on the water flow inside the upper cover assembly 13 (for example, the water flow increases, or the water flow changes from no to present, or the water flow changes from present to no), because when water is added to the air duct 121 through the air outlet 131, the water as a conductor will change the capacitance value on the conductive member 152, that is, when the humidifier is in the upper water adding state and the non-upper water adding state, the capacitance value on the conductive member 152 is different. The first circuit board 151 forms a loop with the conductive member 152 through the conductive structure 1511. A detection circuit is arranged on the first circuit board 151 for detecting the capacitance value on the conductive member 152, and can determine whether the humidifier is adding water through the air outlet 131 based on the detected capacitance value. For example, when the capacitance value on the conductive member 152 increases, it indicates that there is water inside the upper cover assembly 13. Therefore, it can be determined that the humidifier is adding water through the air outlet 131. If the capacitance value on the conductive member 152 does not change and remains at a preset fixed value, it can be determined that the humidifier is not adding water through the air outlet 131. For example, if the capacitance value is first detected to increase and then decreases, it can be determined that water addition has stopped.

[0063] For example, the conductive member 152 may be a conductive sponge, or the conductive member 152 may be replaced by other structures capable of sensing water flow, such as a spring.

[0064] In some embodiments, optionally, as Figure 1 As shown, the humidifier also includes an inner cover 10 and a motor bracket 125. The motor bracket 125 is located in the air duct enclosure 12. The inner cover 10 is installed on the upper cover assembly 13 to form a closed cavity with the motor bracket 125. The first circuit board 151 is located in the closed cavity and is installed on the inner cover 10. The conductive member 152 is installed between the first circuit board 151 and the inner cover 10.

[0065] In this embodiment, the upper cover assembly 13 mainly includes structures such as an air outlet grille. The inner cover 10 is installed on the upper cover assembly 13 and forms a closed closed cavity with the motor bracket 125. The first circuit board 151 and the conductive member 152 are installed in the closed cavity, so as to ensure the closed installation of the first circuit board 151 and the conductive member 152 and prevent the first circuit board 151 and the conductive member 152 from contacting the water in the air duct. In this arrangement, the first circuit board 151 and the conductive member 152 are indirectly installed on the upper cover assembly 13 through the inner cover 10. Of course, in other schemes, a closed cavity structure can also be formed on the inner side of the upper cover assembly 13 to achieve a sealed installation of the first circuit board 151 and the conductive member 152.

[0066] Exemplarily, at least a portion of the inner cover 10 can be in contact with the water flow added from the air outlet 131. The conductive member 152 is provided corresponding to the portion of the inner cover 10 that can be in contact with the water flow added from the air outlet 131. For example, at least a portion of the inner cover 10 (this portion can be called a water receiving portion) can be provided on the inner side of the upper cover assembly 13 and spaced apart from the upper cover assembly 13 in the height direction. Furthermore, the water receiving portion of the inner cover 10 can be provided corresponding to the air outlet on the upper cover assembly 13, so that at least a portion of the water added from the air outlet 131 can fall onto the inner cover 10. The conductive member 152 is installed on the inner side of the water receiving portion of the inner cover 10.

[0067] In some embodiments, the conductive structure 1511 optionally includes multiple aluminum foils and / or multiple copper foils. Aluminum foil and copper foil have good conductivity and a certain degree of flexibility, and are therefore easy to set up and connect to the conductive member 152. In addition, providing multiple aluminum foils and / or copper foils can further ensure the stability of the connection.

[0068] In some embodiments, optionally, as Figure 2 、 Figure 4 and Figure 5 As shown, the housing assembly 11 includes a fixed bracket 112, an upper housing 113 and a bottom housing 114. The air duct enclosure 12 is mounted on the fixed bracket 112, and a first positioning groove 1121 is provided on the fixed bracket 112. A second positioning groove 122 is provided on the air duct enclosure 12. The main control board 16 is arranged along the height direction of the humidifier 1, and both sides of the main control board 16 along the height direction of the humidifier 1 are respectively abutted against the first positioning groove 1121 and the second positioning groove 122. The upper housing 113 is mounted on the fixed bracket 112 and is arranged around the air duct enclosure 12. The bottom housing 114 is mounted on the side of the fixed bracket 112 away from the upper housing 113. A water tank 18 and a wet curtain 17 are installed in the bottom housing 114.

[0069] In this embodiment, the fixed bracket 112 and the upper housing 113 form the outer shell structure of the upper assembly. The bottom housing 114, together with the water tank 18 and wet curtain 17 within it, constitute the bottom assembly. During installation, the fixed bracket 112 and the bottom assembly can be detachably connected to achieve a detachable connection between the upper and bottom assemblies. The air duct enclosure 12 is mounted on the fixed bracket 112. The air duct enclosure 12, the fixed bracket 112, the upper housing 113, and the upper cover assembly 13 form a relatively closed electrical compartment. The electrical control board is installed in this electrical compartment, thereby achieving closed protection for the electrical compartment. In addition, a first positioning groove 1121 is provided on the fixed bracket 112, and a second positioning groove 122 is provided on the air duct enclosure 12. The main control board 16 is arranged along the height direction of the humidifier 1, and the two sides of the main control board 16 along the height direction of the humidifier 1 are respectively abutted against the first positioning groove 1121 and the second positioning groove 122, thereby realizing the positioning installation of the main control board 16. Installation through the positioning groove facilitates the disassembly of the main control board 16. At the same time, this setting can realize the vertical installation of the main control board 16, thereby reducing the space occupied by the main control board 16 and reducing the overall volume of the humidifier 1.

[0070] In some embodiments, optionally, as Figure 3 As shown, the main control board 16 and the water addition detection device 15 are electrically connected via an electrical cable. The duct enclosure 12 is provided with a cable passage 123 and a cable outlet 124 that is sealed and connected to the cable passage 123. One end of the electrical cable is connected to the water addition detection device 15, and the other end of the electrical cable passes through the cable passage 123 and the cable outlet 124 before connecting to the main control board 16.

[0071] In this embodiment, the main control board 16 and the water addition detection device 15 are electrically connected via an electrical cable, thereby ensuring communication. The air duct enclosure 12 is provided with a wire passage 123 and a wire outlet hole 124 that is sealed and connected to the wire passage 123. One end of the electrical cable is connected to the water addition detection device 15, and the other end of the electrical cable passes through the wire passage 123 and the wire outlet hole 124 and then connects to the main control board 16. The provision of the wire passage 123 facilitates the routing of the electrical cable, keeps the cable tidy, and ensures that the portion of the wiring harness inside the air duct 121 is not at risk of getting wet.

[0072] In some embodiments, optionally, as Figure 6As shown, the air duct enclosure 12 includes a motor bracket 125, and the motor bracket 125 includes a motor mounting cavity 1251 and a baffle portion 1252 located around the motor mounting cavity 1251. The fan assembly includes a motor 142 and a fan 144. The motor 142 is installed in the motor mounting cavity 1251 and is connected to the fan 144 to drive the fan 144 to move. Along the radial direction of the motor, the motor mounting cavity 1251 and the baffle portion 1252 are spaced apart, and the motor mounting cavity 1251 and the baffle portion 1252 are connected by a plurality of guide vanes 1253 and at least one wire bracket 1254. The plurality of guide vanes 1253 and at least one wire bracket 1254 are distributed at intervals along the circumference of the motor mounting cavity 1251. The guide vanes 1253 are arranged obliquely relative to the axial direction of the motor, and the wire channel 123 is arranged on the wire bracket 1254. Exemplarily, the number of wire brackets 1254 is one.

[0073] In this embodiment, the air duct enclosure 12 includes a motor bracket 125, and the motor bracket 125 includes a motor mounting cavity 1251 and a baffle portion 1252 located around the motor mounting cavity 1251. The fan assembly 14 includes a motor and a fan 144, and the motor is mounted in the motor mounting cavity 1251 of the motor bracket 125. The baffle portion 1252 is used to enclose the air duct 121 with the volute 126. Along the radial direction of the motor, the motor mounting cavity 1251 and the baffle portion 1252 are spaced apart, so that the upper end of the air duct 121 is not closed. At the same time, an inclined guide vane 1253 is also provided between the motor mounting cavity 1251 and the baffle portion 1252. The guide vane 1253 can also guide the airflow to facilitate adjustment of the direction and size of the outlet airflow discharged from the air duct 121. In order to facilitate wiring, a wire passing bracket 1254 is provided between the motor mounting cavity 1251 and the baffle portion 1252, and the wire passing bracket 1254 and multiple guide vanes 1253 are spaced apart along the entire circumference of the motor mounting cavity 1251, that is, any two adjacent guide vanes 1253 are spaced apart, and the wire passing bracket 1254 and the guide vanes 1253 adjacent to it are also spaced apart. It can also be understood that in this application, one of the guide vanes is converted into a wire passing bracket 1254, so that wiring can be carried out through the wire passing bracket 1254, thereby simplifying the wiring structure.

[0074] Furthermore, the outer wall surface of the wire bracket 1254 facing away from the air outlet 131 is an arc-shaped surface, so as to avoid the wire bracket 1254 blocking the wind, reduce wind resistance, and make the air flow smoother.

[0075] Furthermore, the air duct enclosure 12 also includes a volute 126, and the motor bracket 125 is installed on the side of the volute 126 close to the air outlet 131. The volute 126 and the motor bracket 125 form an air duct 121. The baffle portion 1252 or the surface of the volute 126 close to the outer shell assembly 11 is provided with a wire clamping groove 1261 connected to the wire outlet hole 124. The electrical connection line extending from the wire outlet hole 124 can be wired along the wire clamping groove 1261 to the main control board 16.

[0076] In this embodiment, the air duct enclosure 12 includes a motor bracket 125 and a volute 126. The motor bracket 125 includes a motor mounting cavity 1251 and a baffle portion 1252 located around the motor mounting cavity 1251. The fan assembly 14 includes a motor and a fan 144. The motor 142 is mounted in the motor mounting cavity 1251 of the motor bracket 125. The baffle portion 1252 is used to enclose the air duct 121 with the volute 126. In addition, in order to guide and secure the electrical connection wires outside the air duct 121, a wire clamping groove 1261 connected to the wire outlet 124 is provided on the surface of the baffle portion 1252 or the volute 126 near the housing assembly 11. One end of the wire clamping groove 1261 can extend to the vicinity of the main control board 16. During installation, the electrical connection wires can be clamped in the wire clamping groove 1261, thereby securing the electrical connection wires between the water addition detection device 15 and the main control board 16, making the wiring inside the humidifier 1 more concise.

[0077] In some embodiments, optionally, the main control board 16 is connected to the fan assembly 14 and is used to control the fan assembly 14 to stop working when the water addition detection device 15 detects that the humidifier 1 is adding water through the air outlet 131.

[0078] In this embodiment, the main control board 16 is connected to the fan assembly 14, and can control the fan assembly 14 to stop working when the water addition detection device 15 detects that the humidifier 1 is adding water through the air outlet 131, so as to prevent the fan assembly 14 from stirring the water in the air duct 121. In this way, the water in the air duct 121 can be avoided from splashing everywhere and causing water to enter the motor, thereby reducing the risk of water entering the motor.

[0079] In some embodiments, optionally, as Figure 7 、 Figure 8 and Figure 15As shown, the humidifier 1 also includes: a wet curtain bracket 19, which is installed in the housing assembly 11, including a receiving plate 191, and a first limiting portion 1911 and a second limiting portion 1912 are provided on the receiving plate 191, and the second limiting portion 1912 is located on the inner side of the first limiting portion 1911 along the radial direction of the wet curtain bracket 19, and a water outlet hole 1913 and a first overflow hole 1914 are further provided on the receiving plate 191, and the water outlet hole 1913 and the first overflow hole 1914 are located on the inner side of the second limiting portion 1912, and the entrance position of the first overflow hole 1914 is higher than the position of the water outlet hole 1913; the wet curtain 17 is installed on the receiving plate 191, and is limitedly installed between the first limiting portion 1911 and the second limiting portion 1912, so that water flowing out of the wet curtain 17 can flow back to the water tank 18 through the first overflow hole 1914 and / or the water outlet hole 1913; the filtering device 115 (such as Figure 7 As shown), it is installed in the housing assembly 11 and is arranged at the water outlet 1913. The water discharged from the water outlet 1913 is filtered by the filter device 115 and then flows into the water tank 18; wherein, along the radial direction of the wet curtain bracket 19, the water outlet 1913 and the first overflow hole 1914 are located on the inner side of the second limiting portion 1912.

[0080] In this embodiment, the humidifier 1 further includes a wet curtain bracket 19 and a filter device 115. The wet curtain bracket 19 is installed in the housing assembly 11. The wet curtain bracket 19 includes a receiving plate 191. The wet curtain 17 is installed on the receiving plate 191. The receiving plate 191 is provided with a first limiting portion 1911 and a second limiting portion 1912. The second limiting portion 1912 is located on the inner side of the first limiting portion 1911 along the radial direction of the wet curtain bracket 19. The wet curtain 17 is limitedly installed between the first limiting portion 1911 and the second limiting portion 1912, thereby achieving the inner and outer limiting of the wet curtain 17, thereby better fixing the wet curtain 17. The receiving plate 191 is further provided with a water outlet hole 1913 and a first overflow hole 1914. The water outlet hole 1913 and the first overflow hole 1914 are located on the inner side of the second limiting portion 1912. That is, the water outlet hole 1913 and the first overflow hole 1914 avoid the wet curtain 17, thereby preventing the water outlet hole 1913 and the first overflow hole 1914 from being blocked by the wet curtain 17. The receiving plate 191 can collect water falling from the wet curtain 17, and then can allow the water falling from the wet curtain 17 to flow into the water tank 18 through the water outlet hole 1913 or the first overflow hole 1914 on the receiving plate 191. Since the entrance of the first overflow hole 1914 is located at a higher position than the water outlet 1913 in the height direction, when there is less water on the receiving plate 191, the water will first flow out of the water outlet 1913. That is, when the product is working normally, the water falling from the wet curtain 17 will basically be discharged from the water outlet 1913. Therefore, when the filter device 115 is provided at the water outlet 1913, the water falling from the wet curtain 17 can be filtered, thereby removing impurities from the water in the water tank 18, allowing the water in the water tank 18 to be recycled and preventing impurities in the water from clogging the water pump, water pipes and other circulation circuits, causing the entire machine to malfunction.

[0081] In some embodiments, optionally, as Figure 13 and Figure 15 As shown, a circle of vertical ribs extending vertically is connected around the receiving plate 191 to form a first limiting portion 1911. Figure 13 and Figure 15 As shown, an inwardly protruding protrusion is provided on the inner bottom wall of the receiving plate 191 to form a second limiting portion 1912. The first limiting portion 1911 and the second limiting portion 1912 constitute a wet curtain installation position to accommodate the installation of the wet curtain 17.

[0082] In some embodiments, optionally, as Figure 7As shown, the humidifier 1 also includes: a water flow detection device 116, which is arranged at the first overflow hole 1914, and is used to detect whether water overflows from the first overflow hole 1914; the main control board 16 is also used to determine that the filter device 115 is abnormal and give a prompt when the water flow detection device 116 detects that water overflows from the first overflow hole 1914 and the water addition detection device 15 detects that the humidifier 1 is adding water through the air outlet 131.

[0083] In this embodiment, a water flow detection device 116 is provided at the first overflow hole 1914 to detect whether there is water flow at the first overflow hole 1914. When there is water flow at the first overflow hole 1914, an overflow signal is generated. Based on the overflow signal, it is then possible to determine whether the water outlet 1913 is blocked, and thus whether the filter 115 needs to be replaced. In this manner, using the overflow signal to prompt the replacement of the filter 115 can make the prompt more accurate, avoiding both the waste caused by frequent replacement of the filter 115 due to premature prompts and the problem of untimely replacement of the filter 115 due to late prompts. At the same time, the main control board 16 can also determine that the filter 115 is abnormal when the water flow detection device 116 detects water overflowing from the first overflow hole 1914 and the water addition detection device 15 detects that the humidifier 1 is adding water through the air outlet 131, and provides a prompt to facilitate user operation.

[0084] The overall structure of the humidifier 1 is as follows: Figure 13 and Figure 14 As shown. Figure 13 As shown, the humidifier 1 is composed of two parts, the upper and lower parts, which are detachably connected.

[0085] The humidifier's operating and humidification principles are as follows: the user adds water from the top, which flows through the cover, air outlet grille, motor bracket, air duct, and all the way to the water tank at the bottom of the machine for storage. The water pump then supplies water to humidify the wet curtain assembly. As the machine operates, the impeller rotates, creating a pressure difference between the inside and outside, forcing air into the air inlet grille at the bottom of the machine and out through the air outlet grille at the top. The air entering the machine removes small water particles from the wet curtain assembly as it passes through the humidification assembly, moistening the air exiting the outlet. This continuous cycle humidifies the air.

[0086] When the user suddenly adds water from the top while the machine is operating normally, the impeller is still in normal operation. To prevent the impeller from hitting the water and making noise, the machine needs to control the impeller to stop immediately. When the user first starts adding water, the water flows and hits the top surface of the cover plate, which is acted upon by a force. At this time, the conductive sponge in close contact with the cover plate is also acted upon synchronously. The aluminum foil on the water level display panel in contact with the conductive sponge senses the pressure signal, converts the pressure signal into an electrical signal, and transmits it to the main control board outside the air duct system. The main control board receives the electrical signal from the water level display panel, processes it through the internal chip and program, and sends an electrical signal to the motor, thereby controlling the motor to stop immediately.

[0087] Here, a sensor that receives signals is formed by combining conductive sponge and aluminum foil. Alternatively, spring buttons can be directly welded around the display panel, and the water flow signal can be detected by the close contact between the spring and the back of the cover. This is equivalent to the user touching the spring button, and can achieve the same effect.

[0088] To achieve accurate water addition signal sensing, it is necessary to ensure that the conductive sponge is in close contact with the back of the cover, and that the aluminum foil around the water level display panel is in close contact with the conductive sponge. The specific installation structure is introduced below:

[0089] First, the water level display board, cover, light shield, and conductive sponge are assembled as a whole. The conductive sponge has glue on the back and is attached to the back of the cover at the designated position. The four corners of the water level display board are covered with aluminum foil, such as Figure 11 and Figure 12 The cover and the hood are fixed by four buckles on the edge and two screws in the middle, as shown. Figure 11 At the same time, before fixing the screws, you need to first install the water level display board on the light shield, and then screw two screws on the back of the water level display board to achieve the simultaneous fixing of the three parts of the circuit board, light shield, and cover.

[0090] In order to ensure that the conductive sponge is in full contact with the cover plate and the water level display board, Figure 9 As shown, when the water level display board is installed in place, it is necessary to ensure that the conductive sponge is in a compressed and deformed state, and ensure that the water level display board and the conductive sponge are in contact. The four corners of the light shield are designed with supporting rib structures. When installed in place, it is necessary to ensure that the supporting ribs of the light shield and the conductive sponge are in a compressed and upward force state to ensure full contact between the sponge and the cover.

[0091] Another key component of the induction control system is the main control board, which is mounted on the outside of the air duct using a retaining slot. This slot is designed on the outside of the duct, into which the main control board is inserted. A similar retaining slot is designed on the end face of the mounting plate, which is secured by screws between the duct and the mounting plate to maintain the main control board's position. Sufficient space must be reserved between the main control board and the outer casing to ensure proper placement of the wiring harness and socket terminals.

[0092] like Figures 1 to 15 As shown, the first aspect of the present invention proposes a humidifier, including a bottom component and an upper component. The upper component includes a cover plate (part of the upper cover component 13), an air outlet grille (part of the upper cover component 13), a top cover (part of the upper cover component 13), a light shield (part of the upper cover component 13), a water level display panel (i.e., the first circuit board 151), a conductive sponge, an upper shell, a sealing silicone, a motor bracket 125, a motor 142, a wind wheel (i.e., a fan 144), an air duct, a coupler A terminal, a fixing plate, a sealing sponge, a DC socket, a main control board 16, a front display assembly, a top button panel and a buckle. The bottom component includes a wet curtain assembly, a coupler B terminal, a wet curtain bracket 19, a wiring cover, a water pump mounting bracket, a float mounting bracket, a water level detection board, waterproof silicone, a water tank assembly and casters. The following is a detailed introduction to the structure and installation of each component:

[0093] Cover: The display window on the top of the machine, translucent black, has an overall curved hemispherical shape. Internally, it integrates with the light shield and water level indicator, providing light and text to indicate the remaining water level in the water tank. The cover is secured to the air outlet grille with snap-fits around the edges, and the bottom is locked to the motor bracket 125 with four screws.

[0094] The air outlet grille (part of the upper cover assembly 13) serves as the air outlet for the machine. Its overall curved surface features a central groove that, combined with the raised shape of the cover, guides the user to add water to the center groove at the top of the machine. The grille is secured to the motor bracket 125 with four screws around its perimeter and to the cover via a snap-fit ​​in the center.

[0095] Top cover (part of the upper cover assembly 13): The operating button component of the machine is installed on the air outlet grille and the upper shell through a buckle and slot structure. At the same time, a complete long stop structure is designed at the assembly position of the top cover and the air outlet grille to ensure that when the user adds water, the water will not flow through the installation gap to the outside of the air duct system and wet the circuit board outside the air duct system.

[0096] The light shield (part of the upper cover assembly 13) is secured to the cover plate with screws and four clips. A water level indicator is mounted on its underside. Ribs on the light shield prevent light from spilling onto the water level indicator. Ribs on the perimeter of the light shield ensure that when the light shield is mounted on the cover plate, they compress the conductive sponge, ensuring full contact between the sponge and the cover plate.

[0097] Water level display board (i.e., first circuit board 151): This circuit board is mainly divided into two parts. The middle part is the LED display area, and the four corner edge areas are aluminum foil areas. Through the contact between the aluminum foil and the conductive sponge, the whole can be used as an induction sensor system. When the user adds water from the top, when the water flows over the conductive sponge, the sensor detects the signal, which is converted into an electrical signal and transmitted to the main control board 16. The main control chip on the main control board 16 sends an instruction to the motor after analysis, and the motor immediately stops to prevent the wind wheel from hitting the water during the water adding process. The middle part is a circle of LED lights to remind the user of the water level in the water tank. It is connected to the main control board 16 through a wiring harness.

[0098] Conductive sponge: The back of the conductive sponge is glued to the inside of the cover, while the bottom is pressed against the rib structure of the light shield. The inner surface of the light shield, the four corners of the water level display, the areas with aluminum foil, and the bottom of the conductive sponge form a path to form a sensor system.

[0099] Upper Shell: This is the protective outer shell of the head of the device and is also the most important exterior surface of the device. The top of the upper shell fits into the slots and buckles of the top cover, and the bottom is fixed with screws to the fixing plate. The upper shell is used to protect the entire head of the device.

[0100] Sealing silicone: Installed inside the annular groove of the motor bracket 125, fixed by screws between the cover plate and the motor bracket 125, causing the silicone to deform, ensuring the seal between the cover plate and the installation position of the motor bracket 125, ensuring that when the user adds water, the water will not flow into the motor bracket 125 and cause motor failure.

[0101] Motor bracket 125: The mounting component of the motor, the top is fixed to the cover plate and the air outlet grille respectively, and the bottom is fixed to the air duct. It is designed with guide vanes around it and constitutes a part of the entire air duct system.

[0102] Motor 142: The component that provides power to the entire machine. It is connected to the main control board 16 through a wiring harness, provides current, and drives the wind wheel to rotate.

[0103] The wind wheel (i.e., fan 144) is installed on the motor and rotates with the motor to form an air flow, thereby promoting the circulation of air inside and outside the humidifier.

[0104] Air duct: An important component of the air duct system. Its interior is part of the air flow path, and its exterior is equipped with important electrical components such as coupler A terminal, DC socket, and main control board 16.

[0105] Coupler A terminal: Since the entire unit consists of two detachable parts, the external power interface is located in the upper housing. To power the lower housing assembly and meet functions such as water pump filling and water level detection, the coupler's A and B terminals are required for power supply and communication with the electronic control. Terminal A is fixed to the air duct with screws. A notch in the fixing plate allows the steel pin on terminal A to mate with terminal B.

[0106] Fixed plate (i.e., fixed bracket 112): The base of the upper shell assembly of the fuselage head, connected to the upper shell and the air duct by screws. It is also a key component for realizing the assembly guide of the fuselage head and the bottom. There are four grooves at the four corners of the bottom, and the four grooves are used to complete the alignment of the coupler and the installation of the machine.

[0107] Sealing sponge: a circular structure with adhesive on one end, which is tightly attached to the back of the fixing plate. When the upper shell assembly and the lower shell assembly are installed in place, the sealing sponge completes the sealing of the joint to ensure the airtightness of the entire air intake system.

[0108] DC socket: It is installed on the outside of the air duct through a card slot structure, and the bottom is limited by a fixed plate. It serves as the connection port between the whole machine and the external power supply. One end is connected to the adapter and the other end is connected to the main control board 16. The adapter is connected to the external mains power to ensure that the machine is powered.

[0109] Main control board 16: Installed outside the air duct via a slotted structure and limited by a fixing plate at the bottom, main control board 16 serves as the control system for the entire machine. The chip on this board controls the entire machine's operation. It connects to the coupler, motor, front display, top water level display panel, top keypad, and other sensor wiring harnesses to ensure current transmission and communication.

[0110] Front display assembly: The front display part of the whole machine is connected to the main control board 16 by a wiring harness. It serves as the most important display window of the whole machine, displaying the humidity and the current working mode of the machine.

[0111] Top key panel: fixed on the back of the top cover, connected to the main control board 16 through a wiring harness, and is the operating key part of the entire machine.

[0112] The handles are mounted on the mounting plate, one on each side of the machine. They have two hooks on the bottom. When the machine is in place, the springs expand and contract, allowing the two hooks to engage the air intake grille, connecting the upper and lower housings. The handles are also designed with half concave and half convex on the outside. The user holds the grooves to carry the machine. Pressing the convex portion releases the springs, releasing the hooks that hold the air intake grille, allowing the upper and lower housings to be separated and disassembled.

[0113] The wet curtain assembly, the humidifying component of the entire machine, is placed on the wet curtain bracket 19. It houses an internal water supply pipe, which pumps water from the water pump to the top of the wet curtain assembly. Water is then diverted there, evenly wetting the circular wet curtain. To ensure alignment between the wet curtain assembly and the wet curtain bracket 19, a straight edge is designed at the bottom of the circular wet curtain assembly. This straight edge, positioned between the wet curtain bracket 19 and the wet curtain assembly, ensures that the wet curtain assembly's water supply pipe hole aligns with the water inlet between the wet curtain bracket 19.

[0114] Coupler B terminal: fixed to the convex bulge of the wet curtain bracket 19 by screws, and the contact surface of the entire coupler A terminal and coupler B terminal is higher than the highest surface of the wet curtain assembly.

[0115] Wet curtain bracket 19: There are four convex bumps on the top, which cooperate with the four groove structures on the bottom surface of the fixed plate, that is, they serve as guide structures for the upper and lower shell components to be installed in the upper and lower positions. At the same time, one of the convex bumps is installed with a coupler B terminal inside to realize communication between the upper and lower components. In addition, the middle of the other two convex bumps is hollowed out and used as handles to facilitate the user to lift the entire wet curtain bracket 19 and the parts on it. There is a circle of flange at the top of the wet curtain bracket 19, which is mounted on the inner flange of the air inlet grille. In order to achieve the installation limit of the wet curtain bracket 19, a convex bump structure is designed on the back of the top flange of the wet curtain bracket 19. At the same time, a through hole is opened at the corresponding position of the air inlet grille. When assembling up and down, the wet curtain bracket 19 is limited by the guidance and positioning of the convex bump.

[0116] Wiring cover: The wiring harness between the coupler's B terminal and the water level detection board in the lower housing assembly is connected to complete communication. The wiring cover is screwed to the wet curtain bracket 19. Its main function is to shield the wiring harness between the coupler's B terminal and the water level detection board, thus concealing the wiring harness.

[0117] Water pump mounting bracket: It is fixed to the wet curtain bracket 19 by four screws. At the same time, the water pump is installed on the bracket by buckles and screws. The inside of the mounting bracket is designed with a deep groove for installing the water level detection plate. In order to prevent the water level detection plate from getting wet, the groove needs to be sealed. The top of the mounting bracket needs to be designed with an annular groove structure for installing waterproof silica gel. It is fixed by screws between the wet curtain bracket 19 and the water pump mounting bracket, forcing the silica gel to deform, thereby achieving waterproof sealing of the water level detection plate.

[0118] Float mounting bracket: To detect the water level, a movable float is required to work with the water level detection plate to form a detection system. The float mounting bracket is screwed to the water pump mounting bracket and has a movable float embedded inside.

[0119] Water level detection board: installed inside the water pump mounting bracket, connected to the coupler B terminal and the water pump through a sealed wiring harness.

[0120] Waterproof silicone: in the annular groove of the water pump mounting bracket, it realizes sealing protection of the water level detection plate inside the pump mounting bracket.

[0121] Air inlet grille: a component of the water tank assembly. The top of the air inlet grille has an inner flange that supports and limits the wet curtain bracket 19. The bottom is a hollow structure that is fixed to the water tank by screws at the four corners. It is also the air inlet component of the whole machine.

[0122] Water tank 18: An important component of the water tank assembly, a water storage container, is fixed to the air inlet grille through four screws on the top to form an assembly. At the same time, a drain outlet is designed at the tail of the water tank to realize the user's dirty water drainage function.

[0123] Casters: A component of the water tank assembly, installed on the bottom of the water tank through interference fit, at the four corners to meet the plane movement of the machine.

[0124] The control method of the humidifier of the present application includes: controlling the fan assembly to rotate; and controlling the fan assembly to stop rotating when it is detected that the humidifier is adding water through the water inlet.

[0125] In this embodiment, when the humidifier is adding water through the water inlet, the fan assembly can be controlled to stop rotating, thereby preventing the fan assembly from affecting the water addition.

[0126] In some embodiments, optionally, the method for controlling a humidifier further includes: when it is detected that the humidifier is not adding water through the water inlet, controlling the fan assembly to continue rotating.

[0127] In this embodiment, when it is detected that the humidifier is not adding water through the water adding port, the fan assembly can be controlled to continue rotating to humidify the air.

[0128] In some embodiments, optionally, the control method includes: obtaining an overflow signal; when the overflow signal is obtained and the humidifier does not add water through the water inlet, determining that the filter device is abnormal and providing an abnormal prompt.

[0129] In this embodiment, it is also possible to determine whether the humidifier is abnormal and to issue an abnormal prompt. Specifically, when an overflow signal is obtained and the humidifier does not add water through the water inlet, the filter device is determined to be abnormal. The reason why the humidifier is determined to be abnormal is to avoid affecting the judgment result when adding water to the humidifier.

[0130] In some embodiments, optionally, the control method of the humidifier further includes: when an overflow signal is obtained and the humidifier is adding water through the water inlet, continuing to obtain a detection signal; when it is determined that the filter device is abnormal, controlling the humidifier to stop working.

[0131] In this embodiment, when an overflow signal is obtained and the humidifier is adding water through the water inlet, the detection signal continues to be obtained. When it is determined that the filter device is abnormal, the humidifier is controlled to stop working to avoid damage to the humidifier.

[0132] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0133] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0134] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A humidifier, characterized in that: include: Housing assembly; An air duct enclosure is installed in the housing assembly, and an air duct is provided in the air duct enclosure; An upper cover assembly is provided at the air outlet end of the air duct enclosure, and an air outlet hole communicating with the air duct is provided on the upper cover assembly; a fan assembly, installed in the air duct; a water addition detection device, installed between the upper cover assembly and the fan assembly, for detecting whether the humidifier is added with water through the air outlet; The main control board is installed between the air duct enclosure and the shell assembly, and is connected to the water addition detection device. It can control the operation of the fan assembly according to the detection result of the water addition detection device.

2. The humidifier according to claim 1, characterized in that Also includes: A wet curtain is installed in the housing assembly and is located on a side of the fan assembly away from the upper cover assembly. An air inlet is provided at a portion of the housing assembly corresponding to the wet curtain. The fan assembly is used to allow air outside the housing assembly to enter through the air inlet and pass through the wet curtain before being discharged from the air outlet. A water tank is arranged in the housing assembly and is used to supply water to the wet curtain.

3. The humidifier according to claim 1, characterized in that The water addition detection device comprises: a first circuit board, mounted on the upper cover assembly, wherein the first circuit board is provided with a conductive structure; a conductive member, disposed on the upper cover assembly and in contact with the conductive structure, for sensing the water flow added from the air outlet; The first circuit board can determine whether the humidifier is adding water through the air outlet based on the sensing result of the conductive member.

4. The humidifier according to claim 3, characterized in that The conductive structure includes a plurality of aluminum foils and / or a plurality of copper foils; and / or The humidifier also includes an inner cover and a motor bracket. The motor bracket is located in the air duct enclosure. The inner cover is located between the upper cover assembly and the motor bracket and is installed on the upper cover assembly to form a closed cavity between the inner cover and the motor bracket. The first circuit board is located in the closed cavity and is installed on the inner cover. The conductive member is installed between the first circuit board and the inner cover.

5. The humidifier according to claim 1, characterized in that The housing assembly comprises: A fixing bracket, the air duct enclosure is mounted on the fixing bracket, the fixing bracket is provided with a first positioning groove, the air duct enclosure is provided with a second positioning groove, the main control board is arranged along the height direction of the humidifier, and the two sides of the main control board along the height direction of the humidifier are respectively abutted against the first positioning groove and the second positioning groove; The upper shell is mounted on the fixing bracket and is arranged around the air duct enclosure; The bottom shell is installed on a side of the fixing bracket away from the upper shell, and a water tank and a wet curtain are installed in the bottom shell.

6. The humidifier according to any one of claims 1 to 5, characterized in that The main control board and the water addition detection device are electrically connected through an electrical connection line. The air duct enclosure is provided with a wire passage and a wire outlet hole sealed and connected to the wire passage. One end of the electrical connection line is connected to the water addition detection device, and the other end of the electrical connection line is connected to the main control board after passing through the wire passage and the wire outlet hole.

7. The humidifier according to claim 6, characterized in that The air duct enclosure comprises: a motor bracket, the motor bracket including a motor mounting cavity and a baffle portion located around the motor mounting cavity, the fan assembly including a motor and a fan, the motor being mounted in the motor mounting cavity and connected to the fan to drive the fan to move; Along the radial direction of the motor, the motor mounting cavity and the baffle portion are spaced apart, and the motor mounting cavity and the baffle portion are connected by a plurality of guide vanes and at least one wire-passing bracket. The plurality of guide vanes and at least one wire-passing bracket are distributed at intervals along the circumference of the motor mounting cavity, the guide vanes are tilted relative to the axial direction of the motor, and the wire-passing channel is arranged on the wire-passing bracket.

8. The humidifier according to claim 7, characterized in that The outer wall surface of the wire-passing bracket facing away from the air outlet is an arc-shaped surface; and / or The air duct enclosure also includes a volute, and the motor bracket is installed on a side of the volute close to the air outlet. The volute and the motor bracket form the air duct, and a wire clamping groove connected to the wire outlet is provided on the baffle portion or the volute. The electrical connection line extending from the wire outlet can be wired along the wire clamping groove to the main control board.

9. The humidifier according to any one of claims 1 to 5, characterized in that The main control board is connected to the fan assembly and is used to control the fan assembly to stop working when the water addition detection device detects that the humidifier is adding water through the air outlet.

10. The humidifier according to claim 2, characterized in that Also includes: A wet curtain bracket is installed in the housing assembly and includes a receiving plate. A first limiting portion and a second limiting portion are provided on the receiving plate. The second limiting portion is located on the inner side of the first limiting portion along the radial direction of the wet curtain bracket. A water outlet hole and a first overflow hole are also provided on the receiving plate. The water outlet hole and the first overflow hole are located on the inner side of the second limiting portion. The entrance of the first overflow hole is located at a higher position than the water outlet hole. The wet curtain is installed on the receiving plate and is limited between the first limiting portion and the second limiting portion, so that water flowing out of the wet curtain can flow back to the water tank through the first overflow hole and / or the water outlet hole; A filter device is installed in the housing assembly and is disposed at the water outlet. Water discharged from the water outlet is filtered by the filter device and then flows into the water tank. Wherein, along the radial direction of the wet curtain bracket, the water outlet hole and the first overflow hole are located on the inner side of the second limiting portion.

11. The humidifier according to claim 10, characterized in that Also includes: a water flow detection device, disposed at the first overflow hole, for detecting whether water overflows from the first overflow hole; The main control board is also used to determine that the filter device is abnormal and issue a prompt when the water flow detection device detects that water overflows from the first overflow hole and the water addition detection device detects that the humidifier is adding water through the air outlet.

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