Air duct assembly and purifier thereof

Abstract

The air duct assembly comprises a machine body, a filter and a centrifugal fan, and the machine body is provided with an air inlet duct which is vertically arranged and an air outlet duct which is horizontally or obliquely arranged; the filter is detachably mounted in the air inlet duct; the centrifugal fan is arranged at the communicating position between the air inlet duct and the air outlet duct, the air inlet end of the centrifugal fan communicates with the air inlet duct, and the air outlet end of the centrifugal fan communicates with the air outlet duct. The air conditioner further comprises a heating piece arranged in the air outlet channel. The centrifugal fan sucks air through the air inlet duct, and the air is filtered by the filter, discharged into the air outlet duct from the air outlet end of the centrifugal fan, heated by the heating piece and discharged to the outside. Therefore, the centrifugal fan is adopted and arranged at the communicating position of the air inlet duct and the air outlet duct, the air inlet duct is vertically arranged, and the air outlet duct is horizontally or obliquely arranged, so that the air circulation efficiency is effectively improved, the problems of too low air pressure and unsmooth air circulation are avoided, the purification efficiency is remarkably improved, the fan noise is reduced, and the wind power output is optimized.

Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, specifically to an air duct assembly and its air purifier. Background Technology

[0002] Air purifiers, also known as air cleaners, air fresheners, or air purifiers, are products that can adsorb, decompose, or transform various air pollutants to effectively improve air cleanliness. They are mainly divided into household, commercial, industrial, and building types.

[0003] In the existing technology, the fans used in air purifiers are usually axial flow fans. In addition, due to the internal air duct design of the purifier, the air pressure of the axial flow fan is low when it is running, and the air circulation is not smooth, which affects the purification efficiency. When the air pressure is increased, the noise of the axial flow fan and the air output are not effectively balanced, resulting in loud noise and a poor user experience.

[0004] Therefore, there is an urgent need to design an air duct component and its purifier to overcome the shortcomings of existing technologies. Utility Model Content

[0005] To overcome the shortcomings of the prior art described above, this utility model provides an air duct assembly and its purifier, which uses a centrifugal fan and is located at the connection between the air inlet duct and the air outlet duct. The air inlet duct is arranged vertically and the air outlet duct is arranged horizontally or inclined, which effectively improves the air circulation efficiency and avoids the problems of low air pressure and poor air circulation, thereby significantly improving the purification efficiency. At the same time, by placing the centrifugal fan at the connection between the air inlet duct and the air outlet duct, it can reduce fan noise and optimize air output while ensuring efficient air flow, greatly improving the user experience.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A duct assembly, comprising:

[0008] The body is equipped with a vertically arranged air inlet and a horizontally or inclined air outlet.

[0009] A filter, which is detachably installed inside the air inlet duct;

[0010] A centrifugal fan is disposed at the connection between the air inlet duct and the air outlet duct, wherein the air inlet end of the centrifugal fan is connected to the air inlet duct, and the air outlet end of the centrifugal fan is connected to the air outlet duct.

[0011] It also includes a heating element installed in the air outlet duct; when the centrifugal fan is running, it draws in air through the air inlet duct and filters it through the filter, then discharges it from the air outlet end of the centrifugal fan into the air outlet duct, heats it with the heating element, and then discharges it to the outside.

[0012] In a preferred embodiment, a recess is provided at the bottom of the body, the recess is connected to the air inlet end of the fan and forms the air inlet duct;

[0013] The filter is an activated carbon filter or a HEPA filter and is installed inside the cavity.

[0014] In a preferred embodiment, a recess is provided on the back or side of the body, the recess being connected to the air inlet of the fan and forming the air inlet duct;

[0015] The filter is an activated carbon filter or a HEPA filter and is installed inside the cavity.

[0016] In a preferred embodiment, the heating element is a semiconductor cooling heating element, which includes a hot end located on one side for heat dissipation and a cold end located on the other side for heat absorption.

[0017] One side of the semiconductor cooling heating element is positioned facing the air outlet duct so that the hot end is located inside the air outlet duct and is used to heat the air inside the air outlet duct.

[0018] In a preferred embodiment, a heat sink is provided on one side of the semiconductor cooling heating element, located on the hot end, and the heat sink is used to dissipate the heat from the hot end to heat the air entering the air outlet duct.

[0019] In a preferred embodiment, the device further includes a water collection box, and the device body has an installation groove in which the water collection box is detachably installed; the other side of the semiconductor cooling heating element faces the opening of the water collection box so that the condensate formed after the cold end condenses the air is collected through the water collection box.

[0020] In a preferred embodiment, the machine body has an installation cavity located at the top of the recess and communicating with the recess, and the centrifugal fan is installed in the installation cavity.

[0021] In a preferred embodiment, the centrifugal fan is a centrifugal fan, and the air inlet and outlet of the centrifugal fan are arranged perpendicularly.

[0022] In a preferred embodiment, a sterilization module is further included, which is disposed in the air outlet duct and is used to emit ultraviolet light for sterilization and disinfection.

[0023] An air purifier includes the aforementioned air duct assembly.

[0024] In summary, this utility model has the following technical effects:

[0025] 1. The air duct assembly and purifier of this utility model adopt a centrifugal fan and is set at the connection between the air inlet duct and the air outlet duct. The air inlet duct is arranged vertically and the air outlet duct is arranged horizontally or inclined, which effectively improves the air circulation efficiency and avoids the problems of low air pressure and poor air circulation, thereby significantly improving the purification efficiency. At the same time, by setting the fan at the connection between the air inlet duct and the air outlet duct, it can reduce fan noise and optimize air output while ensuring efficient air flow, greatly improving the user experience.

[0026] 2. The air duct assembly and purifier of this utility model have a detachable filter, which is convenient for users to clean and replace, improving the convenience of maintenance. At the same time, the built-in heating element heats the air entering the air duct before it is discharged, ensuring that the discharged air is warm and fresh. This not only ensures that the air is fully processed during the filtration process, but also improves the air purification effect, significantly improving the purification efficiency, user comfort and product maintenance convenience of the air purifier. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the air duct assembly of this utility model;

[0028] Figure 2 This is a cross-sectional schematic diagram of the air duct assembly of this utility model;

[0029] Figure 3 This is an exploded view of the air duct assembly of this utility model.

[0030] The meanings of the reference numerals in the attached figures are as follows:

[0031] 1. Body; 11. Cavity; 12. Air outlet duct; 13. Mounting cavity; 14. Air inlet screen; 141. Small air inlet hole; 15. Air outlet screen; 151. Small air outlet hole; 16. Mounting slot; 2. Centrifugal fan; 3. Filter; 4. Semiconductor cooling and heating element; 41. Radiator; 5. Water collection box; 51. Handle; 6. Bottom cover; 7. Sterilization module; 8. Controller. Detailed Implementation

[0032] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] like Figure 1-3 The air duct assembly shown includes a body 1, a filter 3, and a centrifugal fan 2. The body 1 has a vertically arranged air inlet duct and a horizontally arranged or inclined air outlet duct 12. The filter 3 is detachably installed in the air inlet duct. The centrifugal fan 2 is located at the connection between the air inlet duct and the air outlet duct 12, with the air inlet end of the centrifugal fan 2 connected to the air inlet duct and the air outlet end of the centrifugal fan 2 connected to the air outlet duct 12. It also includes a heating element installed in the air outlet duct 12. When the centrifugal fan 2 is running, it draws in air through the air inlet duct, filters it through the filter 3, and discharges it from the air outlet end of the centrifugal fan 2 into the air outlet duct 12. After being heated by the heating element, it is discharged to the outside.

[0036] Based on the above structure, a centrifugal fan 2 is used and it is located at the connection between the air inlet duct and the air outlet duct 12. The air inlet duct is arranged vertically and the air outlet duct 12 is arranged horizontally or inclined. This effectively improves the air circulation efficiency and avoids the problems of low air pressure and poor air circulation, thereby significantly improving the purification efficiency. At the same time, by placing the centrifugal fan 2 at the connection between the air inlet duct and the air outlet duct 12, the noise of the centrifugal fan 2 can be reduced while ensuring efficient air flow and optimizing the air output, which greatly improves the user experience.

[0037] It should be noted that, in this embodiment, the air flows as follows: Figure 2 The middle arrow points to...

[0038] Furthermore, in this embodiment, the centrifugal fan 2 is a centrifugal fan, characterized in that the impeller of the centrifugal fan 2 is contained in a hub driven by a motor, drawing air into the housing and then discharging it into the air outlet duct 12 from the air outlet end which is at a 90-degree angle (perpendicular) to the air inlet. As a high-pressure output device, the centrifugal fan can pressurize the air inside the fan housing, thereby generating a stable, high-pressure airflow, ensuring air circulation and reducing the noise of the centrifugal fan 2, thus improving air purification efficiency. At the same time, the 90-degree angle (perpendicular) between the air inlet and outlet ends of the centrifugal fan can change its traditional air duct layout and the arrangement of components inside the air duct, reducing the product size, reducing the space occupied by the equipment, and improving the user experience.

[0039] In this embodiment, a recess 11 is provided at the bottom of the body 1, which is connected to the air inlet of the centrifugal fan 2 and forms an air inlet channel; the filter 3 is an activated carbon filter or a HEPA filter and is installed in the recess 11.

[0040] Specifically, the air duct assembly of this utility model also includes a bottom cover 6. The bottom of the body 1 has an opening for installing an activated carbon filter or a HEPA filter, and the bottom cover 6 is used to cover the opening. The activated carbon filter or HEPA filter can be removed by opening the bottom cover 6.

[0041] In addition, in this embodiment, a recess 11 may be provided on the back or side of the body 1. The recess 11 is connected to the air inlet of the centrifugal fan 2 and forms an air inlet channel. The filter 3 is an activated carbon filter or a HEPA filter and is installed in the recess 11.

[0042] It should be noted that an opening for installing an activated carbon filter or a HEPA filter can be provided on the back or side of the body 1. The opening can be opened and closed by a movable cover to remove and install the activated carbon filter or HEPA filter.

[0043] In other cases, the filter 3 can also be a nanomaterial filter, a mineralization decomposition filter, an electrostatic electret filter, etc. The specific choice can be made according to the application scenario and is not limited to this.

[0044] In this embodiment, the heating element is a semiconductor cooling heating element 4, which includes a hot end located on one side for heat dissipation and a cold end located on the other side for heat absorption. One side of the semiconductor cooling heating element 4 is disposed facing the air outlet 12 so that the hot end is located inside the air outlet 12 and is used to heat the air inside the air outlet 12.

[0045] Specifically, a heat sink 41 is provided on one side of the semiconductor cooling heating element 4, located on the hot end. The heat sink 41 effectively dissipates the heat generated at the hot end, ensuring that the heat is quickly discharged and preventing heat from accumulating on one side of the semiconductor cooling heating element 4. At the same time, it improves the heating efficiency of the air entering the air outlet duct 12, thereby enhancing the overall operational stability and energy efficiency.

[0046] In this embodiment, the air duct assembly of the present invention also includes a water collection box 5. The body 1 has an installation groove 16, and the water collection box 5 can be detachably installed in the installation groove 16. The other side of the semiconductor cooling heating element 4 faces downward toward the opening of the water collection box 5, so that the condensate formed after the cold end condenses the air is collected through the water collection box 5, avoiding the impact of condensate on the equipment or environment, reducing corrosion or mold growth caused by moisture residue, thereby improving the stability and service life of the equipment, and also keeping the environment clean and dry.

[0047] Specifically, in this embodiment, the water collection box 5 is provided with a grip 51 on its side. The grip 51 makes it easy for the user to remove the water collection box 5 after it is full and empty the water. With the grip 51, the user can operate it more conveniently, improving the efficiency of taking out and putting in the water collection box 5, effectively reducing the inconvenience of the user during use, and enhancing the ease of operation and comfort of the product.

[0048] It should be noted that in other cases, the water level detection component and the alarm light or alarm used for prompting can be set and controlled by connecting to the controller 8. For example, the water level sensor can detect the water level in the water collection box 5 and prompt the user to empty the water in the water collection box 5 with the alarm light or alarm to avoid the water in the water collection box 5 overflowing.

[0049] Of course, a gravity sensor can also be installed at the bottom of the installation slot 16 to weigh the water collection box 5 and control it through the controller 8 to detect the water storage in the water collection box 5 in real time. When a certain water level is reached, an alarm light or alarm will be used to remind the user to pour water to avoid overflow.

[0050] In this embodiment, the body 1 has an installation cavity 13 located at the top of the recess 11 and communicating with the recess 11, and the centrifugal fan 2 is installed in the installation cavity 13.

[0051] Specifically, the side of the machine body 1 is provided with an air inlet screen 14, which has several small air inlet holes 141 communicating with the cavity 11. These small air inlet holes 141 can better guide airflow, enhance the uniformity and stability of airflow, and thus improve the overall performance of the equipment. At the same time, the air inlet screen 14 effectively blocks large particles, prevents foreign objects from entering the air inlet duct, reduces damage to the equipment, and extends its service life.

[0052] More specifically, the front of the unit 1 is provided with an air outlet net 15, which has several small air outlet holes 151 that communicate with the air outlet duct 12. The air outlet net 15 effectively blocks large particles, prevents foreign objects from entering the air outlet duct 12, and reduces damage to the equipment.

[0053] In this embodiment, the air duct assembly of the present invention also includes a sterilization module 7 disposed in the air outlet duct 12 and used to emit ultraviolet light for sterilization and disinfection. This module effectively sterilizes bacteria and harmful microorganisms in the air, enhances the air purification effect, improves air quality, and also improves air freshness and safety, providing users with a healthier indoor environment.

[0054] In addition, this utility model also provides a purifier, including the aforementioned air duct assembly. The purifier also includes a controller 8, and the centrifugal fan 2, the semiconductor cooling and heating element 4, and the sterilization module 7 are all electrically connected to the controller 8. During use, the user can set the purifier through the controller 8, such as the airflow of the centrifugal fan 2 and the operating power of the semiconductor cooling and heating element 4. The specific settings of the controller 8 can be selected according to the user's needs and are not limited thereto.

[0055] In summary, the air duct assembly and purifier of this utility model, which uses a centrifugal fan 2 and is located at the connection between the air inlet duct and the air outlet duct 12, with the air inlet duct arranged vertically and the air outlet duct 12 arranged horizontally or inclined, effectively improves the air circulation efficiency and avoids the problems of low air pressure and poor air circulation, thereby significantly improving the purification efficiency. At the same time, by placing the centrifugal fan 2 at the connection between the air inlet duct and the air outlet duct 12, it can reduce the noise of the centrifugal fan 2 and optimize the air output while ensuring efficient air flow, greatly improving the user experience.

[0056] This utility model features an air duct assembly and its purifier. The removable filter 3 facilitates cleaning and replacement by the user, improving maintenance convenience. Simultaneously, the built-in heating element heats the air entering the air outlet duct 12 before discharge, ensuring that the discharged air is warm and fresh. This not only ensures that the air is fully processed during the filtration process but also improves the air purification effect, significantly enhancing the purification efficiency, user comfort, and product maintenance convenience of the air purifier.

[0057] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0058] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0060] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A duct assembly, characterized in that, include: The body is equipped with a vertically arranged air inlet and a horizontally or inclined air outlet. A filter, which is detachably installed inside the air inlet duct; A centrifugal fan is disposed at the connection between the air inlet duct and the air outlet duct, wherein the air inlet end of the centrifugal fan is connected to the air inlet duct, and the air outlet end of the centrifugal fan is connected to the air outlet duct. It also includes a heating element installed in the air outlet duct; when the centrifugal fan is running, it draws in air through the air inlet duct and filters it through the filter, then discharges it from the air outlet end of the centrifugal fan into the air outlet duct, heats it with the heating element, and then discharges it to the outside.

2. The air duct assembly according to claim 1, characterized in that, The bottom of the body has a recessed cavity, which is connected to the air inlet of the fan and forms the air inlet duct. The filter is an activated carbon filter or a HEPA filter and is installed inside the cavity.

3. The air duct assembly according to claim 1, characterized in that, A recessed cavity is provided on the back or side of the body, and the recessed cavity is connected to the air inlet end of the fan and forms the air inlet duct; The filter is an activated carbon filter or a HEPA filter and is installed inside the cavity.

4. The air duct assembly according to any one of claims 1-3, characterized in that, The heating element is a semiconductor cooling heating element, which includes a hot end located on one side for heat dissipation and a cold end located on the other side for heat absorption. One side of the semiconductor cooling heating element is positioned facing the air outlet duct so that the hot end is located inside the air outlet duct and is used to heat the air inside the air outlet duct.

5. The air duct assembly according to claim 4, characterized in that, A heat sink is provided on one side of the semiconductor cooling heating element, located on the hot end, and the heat sink is used to dissipate the heat from the hot end to heat the air entering the air outlet.

6. The air duct assembly according to claim 5, characterized in that, It also includes a water collection box, and the body has an installation groove, in which the water collection box can be detachably installed; the other side of the semiconductor cooling heating element faces the opening of the water collection box, so that the condensate formed after the cold end condenses the air is collected through the water collection box.

7. The air duct assembly according to claim 2 or 3, characterized in that, The machine body has an installation cavity located at the top of the recessed cavity and communicating with the recessed cavity, and the centrifugal fan is installed in the installation cavity.

8. The air duct assembly according to any one of claims 1-3, characterized in that, The centrifugal fan is a centrifugal fan, and the air inlet and outlet of the centrifugal fan are arranged perpendicularly.

9. The air duct assembly according to claim 1, characterized in that, It also includes a sterilization module installed in the air outlet duct and used to emit ultraviolet light for sterilization and disinfection.

10. A purifier, characterized in that, The air duct assembly included in any one of claims 1-9.

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