Air conditioner air duct opening and closing device and air conditioner

Abstract

The utility model discloses an air conditioner air duct opening and closing device and an air conditioner. The air conditioner air duct opening and closing device comprises an air duct pipe and a connecting piece. The connecting pieces are connected to the two ends of the air duct pipe, a switch electromagnetic valve is arranged in the air duct pipe, when the switch electromagnetic valve is powered on, the switch electromagnetic valve is in an open state, the air duct pipe and the connecting pieces are in a communicated state, and when the switch electromagnetic valve is powered off, the switch electromagnetic valve is in a closed state, and the air duct pipe and the connecting pieces are in a separated state. The switch electromagnetic valve is arranged in the air duct pipe, and when the air conditioner is not used, the switch electromagnetic valve can be automatically or manually controlled to be powered off to be in a closed state, so that a channel between the air duct pipe and the connecting piece is effectively cut off, external dust is difficult to enter the air conditioner through the air duct, and the service life of the air conditioner is prolonged. The problem of dust accumulation in the air conditioner is reduced, the service life of the air conditioner is prolonged, and air blown out of the air conditioner is kept clean.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an air duct opening and closing device for an air conditioner and an air conditioner. Background Art

[0002] An air conditioner refers to a device that uses artificial means to adjust and control parameters such as the temperature, humidity, and flow rate of the air in the environment of a building or structure. It can process the air state to make the air parameters of the target environment meet certain requirements. With the improvement of people's living quality, the demand for air conditioner products is also increasing day by day.

[0003] The air duct of an air conditioner, commonly known as an air duct, is a pipe used to lead the air discharged from the indoor unit of the air conditioner to different positions in the room. However, in the prior art, the internal air duct of an air conditioner is generally directly connected to the external air duct of the air conditioner, lacking an air duct opening and closing device, resulting in easy dust accumulation inside the air conditioner over a long time. Therefore, an air duct opening and closing device for an air conditioner is needed to improve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an air duct opening and closing device for an air conditioner and an air conditioner.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the utility model provides an air duct opening and closing device for an air conditioner, including: an air duct pipe and a connecting member; the connecting member is connected to both ends of the air duct pipe, and a switch solenoid valve is arranged inside the air duct pipe. When the switch solenoid valve is powered on, the switch solenoid valve is in an open state, and the air duct pipe and the connecting member form a connected state. When the switch solenoid valve is powered off, the switch solenoid valve is in a closed state, and the air duct pipe and the connecting member form a partitioned state.

[0007] In a specific embodiment, a filtering component is further arranged inside the air duct pipe.

[0008] In a specific embodiment, a window is arranged on the side wall of the air duct pipe corresponding to the area where the filtering component is located, and a side sealing plate that can be opened is arranged at the window.

[0009] In a specific embodiment, one side of the side sealing plate is hinged to the air duct pipe, and a first fixing plate extends on the other side. The air duct pipe is provided with a second fixing plate corresponding to the first fixing plate, and the first fixing plate and the second fixing plate are connected by bolts.

[0010] In a specific embodiment, limiting blocks are arranged in a counterpoint manner on the side sealing plate and the air duct pipe, and the limiting blocks are used to fix the filtering component.

[0011] In a specific embodiment, a plurality of array circular arc limiting grooves are formed on the surface of the limiting block, and the filtering assembly is connected to the circular arc limiting grooves.

[0012] In a specific embodiment, the filtering assembly includes a first filter element, a second filter element, a third filter element and a fourth filter element. The first filter element, the second filter element, the third filter element and the fourth filter element are sequentially arranged and installed in the circular arc limiting grooves, and the fourth filter element is located at one end away from the switch solenoid valve.

[0013] In a specific embodiment, the first filter element is a polypropylene filter element, the second filter element is a HEPA filter element, the third filter element is an activated carbon filter element, and the fourth filter element is a nanomaterial filter element.

[0014] In a specific embodiment, the air duct is composed of an inner lining layer, a heat insulation layer and a protective layer. The inner lining layer is located inside, the heat insulation layer is located in the middle, and the protective layer is located outside.

[0015] The beneficial effect of the air-conditioning air duct opening and closing device of the present invention compared with the prior art is that by arranging a switch solenoid valve in the air duct, when the air conditioner is not in use, the switch solenoid valve can be automatically or manually controlled to cut off the power supply and be in a closed state, so as to effectively block the channel between the air duct and the connector. In this way, it is difficult for external dust to enter the interior of the air conditioner through the air duct, reducing the problem of dust accumulation inside the air conditioner, extending the service life of the air conditioner, and keeping the air blown out by the air conditioner clean.

[0016] In a second aspect, an embodiment of the present invention provides an air conditioner, including the air-conditioning air duct opening and closing device as described above.

[0017] The beneficial effect of the air conditioner of the present invention compared with the prior art is that the air duct is hermetically connected to the air inlet duct and the air outlet duct through connectors at both ends, and then a switch solenoid valve is arranged in the air duct. When the air conditioner is not in use, the switch solenoid valve can be automatically or manually controlled to cut off the power supply and be in a closed state, so as to effectively block the channel between the air duct and the connector. In this way, it is difficult for external dust to enter the interior of the air conditioner through the air duct, reducing the problem of dust accumulation inside the air conditioner, extending the service life of the air conditioner, and keeping the air blown out by the air conditioner clean.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the air-conditioning duct opening and closing device provided by the present utility model;

[0021] Figure 2 Structural schematic diagram of the air-conditioning duct opening and closing device provided by the present utility model in the open state;

[0022] Figure 3 For Figure 2 Top view schematic diagram;

[0023] Figure 4 Structural schematic diagram of the air duct provided by the present utility model.

[0024] Reference numerals:

[0025] Air duct 10, second fixing plate 11, inner lining layer 12, heat insulation layer 13, protective layer 14, connecting piece 20, switch solenoid valve 30, filtering component 40, first filter element 41, second filter element 42, third filter element 43, fourth filter element 44, side sealing plate 50, first fixing plate 51, limiting block 60, arc limiting groove 61. Detailed implementation manners

[0026] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following will further describe the present utility model in detail with reference to the drawings and specific implementation manners.

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0033] Referring to Figures 1 to 4 the specific embodiment shown, the present utility model discloses an air-conditioning duct opening and closing device, including: a duct 10 and a connecting member 20; the connecting member 20 is connected to both ends of the duct 10, and a switching solenoid valve 30 is provided inside the duct 10. When the switching solenoid valve 30 is powered on, the switching solenoid valve 30 is in an open state, and the duct 10 and the connecting member 20 form a communicating state. When the switching solenoid valve 30 is powered off, the switching solenoid valve 30 is in a closed state, and the duct 10 and the connecting member 20 form a partitioned state.

[0034] Specifically, by providing a switching solenoid valve 30 inside the duct 10, when the air conditioner is not in use, the switching solenoid valve 30 can be automatically or manually controlled to be powered off and in a closed state, thereby effectively blocking the passage between the duct 10 and the connecting member 20. In this way, it is difficult for external dust to enter the interior of the air conditioner through the duct, reducing the problem of dust accumulation inside the air conditioner, extending the service life of the air conditioner, and keeping the air blown out by the air conditioner clean. In addition, due to the reduction of dust accumulation inside the air conditioner, when the air conditioner is restarted, a cleaner and healthier air environment can be provided, which helps to improve the indoor air quality and has a positive impact on the health of users. In addition, dust can not only affect the air quality but also may cause damage to the mechanical components and electronic elements inside the air conditioner, such as blocking the filter screen, affecting the operation efficiency of the fan, and accelerating the aging of components. By closing the duct in time, these key components can be effectively protected, reducing the frequency of maintenance and replacement. In addition, this device can be combined with a smart home system to achieve remote control and automatic control; for example: automatically opening or closing the duct according to the changes in indoor temperature and humidity, or automatically closing the air-conditioning duct when the user leaves home to save energy and keep the indoor clean.

[0035] Preferably, the connecting member 20 is connected to the end of the duct 10 by thread connection, snap connection, or socket connection.

[0036] Specifically, through the tight fit of internal and external threads, the threaded connection can provide high tensile and shear resistance, ensuring that the connection between the connecting member 20 and the air duct 10 is not easily loosened or separated under external forces, thus ensuring the stability of the entire system. The clamping method usually uses structures such as snap fasteners or slots to achieve connection through the mechanical locking principle. This method can also provide a stable connection effect, especially in occasions where quick connection and disassembly are required. The socket connection is to connect the connecting member 20 and the air duct 10 in a nested manner. Although the stability of the socket connection may be slightly inferior to that of the threaded connection and the clamping connection, in some specific occasions, such as when it is necessary to reduce the resistance at the connection or achieve a smooth transition, the socket connection is also an effective option. Among them, whether it is a threaded connection, a clamping connection or a socket connection, the sealing performance at the connection can be enhanced by adding sealing materials (such as gaskets, sealants, etc.), which is particularly important for systems that need to prevent gas leakage, such as air conditioning systems, ventilation ducts, etc. In addition, the threaded connection and the clamping connection usually have good dismountability, which means that when it is necessary to maintain, replace or adjust the connecting member 20, it can be easily removed from the air duct 10 and reinstalled. This characteristic is particularly important for equipment that needs to be frequently repaired or adjusted.

[0037] In one embodiment, a filter assembly 40 is further provided inside the air duct 10.

[0038] Specifically, the main function of the filtering component 40 is to filter harmful substances such as impurities, particulate matter, bacteria, and pollen in the air passing through the air duct 10. These pollutants may not only pose a threat to human health but also have a negative impact on the performance and lifespan of the air conditioning system. Through the filtering effect of the filtering component 40, the indoor air quality can be significantly improved, providing a healthier and more comfortable living environment for users. Additionally, if impurities such as dust and dirt in the air directly enter the air conditioning system, they may clog the air filter of the air conditioner, affect the operating efficiency of the air conditioner fan, and even damage the mechanical components and electronic elements inside the air conditioner. The presence of the filtering component 40 can effectively block these impurities from entering the interior of the air conditioning system, thereby protecting the normal operation of the air conditioning system and extending its service life. Moreover, when the impurities in the air are effectively blocked by the filtering component 40, the amount of air that the air conditioning system needs to process during operation decreases, and at the same time, the air flow becomes smoother, which helps to improve the operating efficiency of the air conditioning system and reduce energy consumption. Additionally, the filtering component 40 can also reduce the noise generated during the operation of the air conditioner to a certain extent. Because the impurities in the air may rub or collide with the pipe wall when passing through the air duct 10, thereby generating noise, and the filtering effect of the filtering component 40 can reduce the number of these impurities, thus reducing the generation of noise. Additionally, according to specific designs and requirements, the filtering component 40 can be a primary, medium, or high-efficiency filter. The primary filter is mainly used to filter larger particulate matter; the medium-efficiency filter can further capture smaller particulate dust and suspended matter; the high-efficiency filter can capture finer particles such as bacteria and viruses. This hierarchical filtering design can be selected according to different usage scenarios and requirements to meet users' different requirements for air quality.

[0039] In one embodiment, a window is provided on the side wall of the air duct 10 corresponding to the area where the filtering component 40 is located, and a side sealing plate 50 that can be opened is provided at the window.

[0040] Specifically, the openable side sealing plate 50 provided on the side wall of the air duct 10 provides great convenience for the cleaning or replacement of the filter assembly 40. In traditional designs, if it is necessary to clean or replace the filter assembly 40, it may be necessary to disassemble the entire air duct 10 or go through other complex steps to access the filter assembly 40. With the designed openable side sealing plate 50, maintenance personnel only need to simply open the side sealing plate 50 to quickly access the filter assembly 40, thereby performing cleaning or replacement operations, greatly simplifying the maintenance process. Additionally, since the side sealing plate 50 can be quickly opened for maintenance, the maintenance efficiency has been significantly improved, which not only saves time but also reduces the impact of maintenance operations on the normal operation of the air conditioning system. This design is particularly important in situations where the filter assembly 40 needs to be cleaned or replaced frequently. Also, although the openable side sealing plate 50 itself may increase the manufacturing cost to some extent, in the long run, it can reduce the overall maintenance cost. Because by simplifying the maintenance process and improving the maintenance efficiency, problems such as a decline in the performance of the air conditioning system, an increase in energy consumption, and even failures caused by improper or untimely maintenance can be reduced, thus avoiding greater economic losses. Additionally, regularly cleaning or replacing the filter assembly 40 is one of the important measures to maintain indoor air quality. If the filter assembly 40 is not cleaned or replaced for a long time, its filtering effect will be greatly reduced and it may even become a new source of pollution. With the openable side sealing plate 50, users can more conveniently perform maintenance operations to ensure that the filter assembly 40 always maintains a good filtering effect, thereby guaranteeing indoor air quality. Also, for users, an air conditioning system that is easy to maintain and service undoubtedly enhances the user experience because it means that users do not have to worry about complex maintenance operations and can more easily enjoy the comfort brought by the air conditioner.

[0041] In one embodiment, one side of the side sealing plate 50 is hinged to the air duct 10, and a first fixing plate 51 extends from the other side. The air duct 10 is provided with a second fixing plate 11 corresponding to the first fixing plate 51, and the first fixing plate 51 and the second fixing plate 11 are connected by bolts.

[0042] Specifically, one side of the side seal plate 50 is fixed to the air duct 10 in a hinged manner, and the other side extends out the first fixing plate 51. The first fixing plate 51 corresponds to the second fixing plate 11 on the air duct 10 and is connected by bolts. This design ensures a tight connection between the side seal plate 50 and the air duct 10, effectively preventing air leakage between the air duct 10 and the side seal plate 50 and guaranteeing the airtightness of the air duct system. Additionally, the improved airtightness also means that it is more difficult for external pollutants to enter the interior of the air duct system, thereby reducing the risk of indoor air pollution and ensuring the indoor air quality. Moreover, the hinged design enables the side seal plate 50 to be easily opened and closed without a complex disassembly process; when it is necessary to clean or replace the filter component 40, simply loosen the bolts to quickly open the side seal plate 50, which is convenient and fast. Furthermore, since the side seal plate 50 can be conveniently opened, maintenance personnel can access the filter component 40 more quickly, thus improving the maintenance efficiency; at the same time, it also reduces the impact on the normal operation of the air conditioning system due to maintenance operations. Additionally, the bolt connection method forms a stable connection structure between the first fixing plate 51 and the second fixing plate 11, enhancing the connection strength between the side seal plate 50 and the air duct 10. This design ensures that the air duct 10 will not vibrate or generate noise due to the loosening of the side seal plate 50 during operation. Moreover, the stable connection structure also helps to reduce the damage caused to the air duct 10 and the side seal plate 50 due to vibration or impact, thereby extending their service life. Additionally, this design can be adjusted according to different usage scenarios and requirements. For example, the size and shape of the side seal plate 50 can be customized according to the size and shape of the air duct 10 and the filter component 40; the tightening degree of the bolts can also be adjusted according to the replacement frequency of the filter component 40, etc.

[0043] Specifically, threaded holes are drilled through the middle parts of the first fixing plate 51 and the second fixing plate 11, and bolts are threadedly connected to these threaded holes. Threaded connection is a way to achieve connection through the mutual engagement of internal and external threads, and its connection strength is relatively high. Drilling threaded holes through the middle parts of the first fixing plate 51 and the second fixing plate 11 and using bolts for threaded connection can ensure the firm and reliable connection between the side sealing plate 50 and the air duct pipe 10, and it is not easy to loosen. In addition, during the operation of the air duct system, certain vibrations or displacements may occur. Through the threaded connection of the bolts, it can effectively prevent the side sealing plate 50 from detaching from the air duct pipe 10 due to vibrations or displacements, ensuring the normal operation of the air duct system. In addition, threaded connection has the property of being detachable. When it is necessary to clean or replace the filter assembly 40, just loosen the bolts to quickly open the side sealing plate 50, without a complex disassembly process, which greatly improves the convenience and efficiency of maintenance. Moreover, the bolts and threaded holes can be reused and will not be damaged due to multiple disassembly and assembly, reducing the maintenance cost. In addition, by adjusting the tightening degree of the bolts, the connection tightness between the side sealing plate 50 and the air duct pipe 10 can be controlled according to actual needs. In occasions where higher tightness is required, the tightening force of the bolts can be increased; in occasions where disassembly and assembly are more convenient, the tightening force can be appropriately reduced. This connection method can adapt to air duct pipes 10 and side sealing plates 50 of different sizes and shapes, improving the flexibility and adaptability of the design.

[0044] In one embodiment, limiting blocks 60 are provided in alignment on the side sealing plate 50 and the air duct pipe 10, and the limiting blocks 60 are used to fix the filter assembly 40.

[0045] Specifically, the design of the limit block 60 enables the precise positioning of the filter assembly 40 during installation, avoiding deviation or shaking during the installation process, thereby ensuring that the filter assembly 40 can be stably fixed inside the air duct 10. Additionally, during the operation of the air duct system, due to the impact and vibration of the air flow, the filter assembly 40 may become loose. The presence of the limit block 60 can effectively prevent this situation from occurring, ensuring that the filter assembly 40 always maintains a stable working state. Moreover, the tight connection between the limit block 60, the side sealing plate 50, and the air duct 10 helps to maintain the airtightness of the air duct system, preventing unfiltered air from directly entering the air duct system through the gaps, thereby affecting the filtration effect. Additionally, the stable filter assembly 40 can ensure uniform distribution of the air flow when passing through the filter layer, avoiding insufficient filtration or blockage phenomena caused by excessive or insufficient local air flow, thereby improving the filtration efficiency. Additionally, when the filter assembly 40 needs to be replaced, the design of the limit block 60 can make the replacement process more convenient and rapid. The maintenance personnel only need to loosen the limit block 60 in a certain order to easily remove the old filter assembly 40 and install the new filter assembly 40. Additionally, during the process of replacing the filter assembly 40, the limit block 60 can also play a role in protecting the air duct 10 and the side sealing plate 50, preventing damage or scratches caused by improper operation. Additionally, during the operation of the air duct system, if the filter assembly 40 becomes loose or falls off, it may cause a safety accident, and the presence of the limit block 60 can effectively prevent this situation from occurring, improving the safety of the system.

[0046] In one embodiment, a plurality of array arc limit grooves 61 are formed on the surface of the limit block 60, and the filter assembly 40 is connected to the arc limit grooves 61.

[0047] Specifically, the design of the arc-shaped limiting groove 61 can achieve precise matching with specific parts (such as edges, flanges, etc.) of the filter component 40, thereby ensuring the precise positioning of the filter component 40 during installation. This design reduces offsets or wobbles caused by improper installation, improving the accuracy and stability of installation. Additionally, by connecting the filter component 40 to the arc-shaped limiting groove 61, a firm fixation between the filter component 40 and the limiting block 60 can be achieved. This fixation method not only enhances the stability of the filter component 40 but also avoids loosening or detachment caused by vibration or air flow impact during the operation of the air duct system. Moreover, the design of the arc-shaped limiting groove 61 makes the installation process of the filter component 40 more simple and rapid. Maintenance personnel only need to align and insert the corresponding part of the filter component 40 into the arc-shaped limiting groove 61 to complete the installation, without complex fixation steps or tools. Similarly, when it is necessary to disassemble the filter component 40 for cleaning or replacement, the filter component 40 can be simply removed from the arc-shaped limiting groove 61 without complex disassembly operations. This design improves the convenience and efficiency of maintenance. In addition, the design of the arc-shaped limiting groove 61 helps to optimize the distribution of air flow on the filter component 40. By precisely controlling the position and angle of the filter component 40, it can be ensured that the air flow can evenly pass through the filter layer, thereby improving the filtering effect and efficiency. Furthermore, due to the tight connection between the filter component 40 and the arc-shaped limiting groove 61, the phenomenon of air leakage caused by improper installation or loosening is reduced, which helps to maintain the airtightness of the air duct system and further improve the filtering effect. Additionally, the design of the arc-shaped limiting groove 61 can reduce the direct contact area and friction force between the filter component 40 and the limiting block 60, thereby reducing the risk of wear and damage caused by long-term operation. Moreover, by improving the stability of the filter component 40 and reducing wear, the service life of the entire air duct system can be extended, which helps to reduce maintenance costs and replacement frequencies and improve the economy and sustainability of the system.

[0048] In one embodiment, the filter component 40 includes a first filter core 41, a second filter core 42, a third filter core 43, and a fourth filter core 44. The first filter core 41, the second filter core 42, the third filter core 43, and the fourth filter core 44 are sequentially arranged and installed in the arc-shaped limiting groove 61, and the fourth filter core 44 is located at one end away from the switching solenoid valve 30.

[0049] Specifically, by setting multiple filter elements (the first filter element 41, the second filter element 42, the third filter element 43, the fourth filter element 44), multi-stage filtration of air or fluid is achieved. Among them, each stage of the filter element can intercept and remove specific pollutants, thereby improving the overall purification efficiency. Different filter elements may adopt different materials, structures, and filtration principles to filter different types of pollutants. For example, the first filter element 41 may be mainly used to remove large particles, while the subsequent filter elements may be used to remove finer particles, organic matter, bacteria, etc. In addition, the multi-stage filtration design helps to reduce the clogging of a single filter element. Since each stage of the filter element undertakes part of the filtration task, the accumulation of pollutants on a single filter element will be relatively small, thereby extending the service life of the filter element and improving the filtration effect. In addition, as the filter elements are arranged step by step, the filtration accuracy will gradually increase, which means that after the air or fluid passes through the entire filter assembly 40, the content of pollutants in it will be greatly reduced, thereby improving the quality of the purified air or fluid. In addition, the design of the multi-stage filter element makes the entire filter assembly 40 show a modular feature. When a certain stage of the filter element needs to be replaced or cleaned, it can be operated separately without affecting the normal use of other filter elements. This design improves the convenience and flexibility of maintenance. In addition, since each stage of the filter element undertakes part of the filtration task, the service life of the entire filter assembly 40 will also be correspondingly extended, which helps to reduce the maintenance cost and the frequency of replacing the filter element. In addition, according to different application scenarios and requirements, the types, quantities, and arrangement orders of the filter elements can be flexibly configured. For example, in occasions where higher purification efficiency is required, the number of filter elements can be increased or the filtration accuracy can be improved; while in occasions where the purification requirements are not high, the number of filter elements can be reduced to lower the cost.

[0050] In one embodiment, the first filter element 41 is a polypropylene filter element, the second filter element 42 is a HEPA filter element, the third filter element 43 is an activated carbon filter element, and the fourth filter element 44 is a nanomaterial filter element.

[0051] Specifically, the polypropylene filter element is usually used as the primary filtration layer to intercept large particles, such as dust, hair, dandruff, etc. Its fiber structure can form an effective filtration barrier to prevent these large particles from entering the subsequent filtration layer, thereby protecting the stability of the entire filtration system and extending the service life of other filter elements. The polypropylene material has good wear resistance and corrosion resistance and can maintain stable filtration performance in various environments.

[0052] HEPA (High Efficiency Particulate Air) filter cartridges are internationally recognized high-efficiency filtration materials that can remove tiny particulate matters in the air with a diameter greater than 0.3 microns, including pollen, bacteria, viruses, second-hand smoke, etc. Their filtration efficiency is extremely high, and the purification rate for 0.3-micron particles can reach over 99.97%. HEPA filter cartridges have a high density and a compact structure, ensuring that air is fully filtered when passing through. At the same time, their filtration efficiency is not affected by the air flow speed, maintaining stable filtration performance.

[0053] Activated carbon filter cartridges are mainly used to remove odors, harmful gases (such as formaldehyde, benzene, etc.) and volatile organic compounds (VOCs) in the air. Activated carbon has extremely strong adsorption ability and can adsorb and fix these harmful substances, thus purifying the air. Activated carbon filter cartridges have a large surface area, strong adsorption ability, and can continuously and effectively remove odors and harmful gases in the air.

[0054] Nanomaterial filter cartridges utilize the unique properties of nanotechnology to further remove tiny particulate matters, bacteria, viruses, etc. in the air. Nanomaterials have an extremely high specific surface area and surface activity, which can enhance the filtration effect and inhibit the growth of bacteria. Nanomaterial filter cartridges have a higher filtration precision and can remove tinier particulate matters and harmful substances. At the same time, their antibacterial performance is also stronger, helping to keep the air clean and hygienic.

[0055] That is to say, by configuring and combining different types of filter cartridges, an efficient and multi-level filtration system is formed. Each filter cartridge plays its unique role and works together to improve the filtration efficiency and purification effect. This configuration can effectively remove harmful substances such as large particulate matters, tiny particulate matters, odors, harmful gases, and volatile organic compounds in the air, providing a cleaner and healthier air environment for people.

[0056] In one embodiment, the air duct 10 is composed of an inner lining layer 12, a thermal insulation layer 13, and a protective layer 14. The inner lining layer 12 is located on the inside, the thermal insulation layer 13 is located in the middle, and the protective layer 14 is located on the outside.

[0057] Specifically, the inner lining layer 12 is located inside the air duct 10 and is in direct contact with the air flow. In a humid environment or in the case of chemical corrosion, the inner lining layer 12 can effectively prevent the inner wall of the air duct 10 from being corroded, thereby extending the service life of the air duct 10 and ensuring the safety and stability of the system. Some inner lining materials (such as fiberglass, aluminosilicate fiber, etc.) also have the function of preventing uneven air flow. Especially at the corners or bends of the air duct, they can reduce the accumulation of condensed water droplets, avoid the problem of dripping water, and optimize the air flow to ensure smooth air flow. The inner lining layer 12 can also protect the inner wall of the air duct 10 from abrasion and erosion. Especially during long-term use, it can significantly reduce the damage caused by physical factors.

[0058] Among them, the thermal insulation layer 13 is located between the inner lining layer 12 and the protective layer 14. Its main function is to reduce the heat loss from the inside of the air duct 10 to the external environment, which helps to improve the energy efficiency of the system and save energy. In an environment with a large temperature difference, the thermal insulation layer 13 can effectively prevent condensation on the inner wall of the air duct 10, keep the inside of the pipeline dry, and avoid damage to the pipeline and internal equipment caused by moisture. In addition, the thermal insulation layer 13 can also isolate the corrosion factors in the external environment to a certain extent, further protecting the overall structure of the air duct 10.

[0059] Among them, the protective layer 14 is located on the outermost side of the air duct 10. Its main function is to protect the thermal insulation layer 13 and the inner lining layer 12 from external mechanical damage, such as collision, scratching, etc. For the air duct 10 exposed outdoors, the protective layer 14 can also effectively prevent the damage of ultraviolet radiation to the pipeline material. In addition, the protective layer 14 material mostly has excellent chemical stability, which can prevent the erosion of chemical substances and ensure the long-term stable operation of the air duct 10. In addition, the protective layer 14 can also play a role in beautifying the appearance of the air duct 10, making it harmonious with the surrounding environment.

[0060] Preferably, the thermal insulation layer 13 is made of polyurethane foam. Polyurethane foam material has an extremely low thermal conductivity, which means it can effectively prevent heat transfer. In applications such as the air duct 10 that require thermal insulation, the polyurethane foam thermal insulation layer 13 can significantly reduce heat loss and improve energy utilization efficiency. Additionally, due to its unique pore structure and low thermal conductivity, polyurethane foam can maintain excellent thermal insulation performance over a wide temperature range. Whether in cold winters or hot summers, it can effectively reduce the impact of temperature fluctuations on the fluid or gas inside the pipeline. Moreover, by reducing heat loss, the polyurethane foam thermal insulation layer 13 can significantly reduce the energy consumption of the system operation. In an air duct system that needs to operate for a long time, this energy-saving effect is particularly obvious, which helps to reduce the overall energy cost. In addition, in an environment with a large temperature difference, the polyurethane foam thermal insulation layer 13 can effectively prevent condensation on the inner wall of the air duct 10, thus avoiding corrosion and mildew problems caused by water accumulation and enhancing the stability and safety of the system. Furthermore, due to the excellent thermal insulation performance of polyurethane foam, it can reduce the thermal stress generated by the pipeline due to temperature changes, which helps to extend the service life of the pipeline. In addition, the polyurethane foam thermal insulation material does not release harmful substances during production and use, which is environmentally friendly. At the same time, it can also be recycled and reused, reducing the consumption of natural resources and environmental pollution. Moreover, by reducing energy consumption and carbon emissions, the polyurethane foam thermal insulation layer 13 plays an active role in promoting energy conservation, emission reduction and sustainable development. That is to say, using polyurethane foam material for the thermal insulation layer 13 has shown significant effects in terms of thermal insulation, saving energy costs, enhancing system stability and safety, as well as environmental protection and sustainability. These advantages make polyurethane foam an indispensable and important material in thermal insulation systems such as the air duct 10.

[0061] The present utility model also discloses an air conditioner, including the air-conditioning air duct opening and closing device as described above.

[0062] Specifically, during use, the air duct is hermetically connected to the air inlet duct and the air outlet duct through a connecting piece. Subsequently, the solenoid valve of the switch is controlled to be opened. The passing air passes through the first filter element, the second filter element, the third filter element and the fourth filter element arranged in sequence and is filtered layer by layer. Then the filtered air enters the room. When the filter element needs to be cleaned, the bolt is quickly opened, and then the side sealing plate is rotated and lifted to slide the first filter element and the like off in sequence for cleaning or replacement. Subsequently, they are slid back into the corresponding positions to complete the cleaning or replacement of the filter element. Then the side sealing plate is closed and fixed to complete the cleaning or replacement work.

[0063] That is to say, the air duct is hermetically connected to the inlet air duct and the outlet air duct through the connectors at both ends, and then a switching solenoid valve is arranged inside the air duct. When the air conditioner is not in use, the switching solenoid valve can be automatically or manually controlled to cut off the power supply and be in a closed state, so as to effectively block the passage between the air duct and the connectors. In this way, it is difficult for external dust to enter the interior of the air conditioner through the air duct, reducing the problem of dust accumulation inside the air conditioner, prolonging the service life of the air conditioner, and keeping the air blown out by the air conditioner clean.

[0064] The above embodiments are the preferred implementation schemes of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. An air duct opening and closing device for an air conditioner, characterized in that: include: An air duct pipe and a connecting piece; the connecting piece is connected to both ends of the air duct pipe, and a switch solenoid valve is provided inside the air duct pipe. When the switch solenoid valve is energized, the switch solenoid valve is in an open state, and the air duct pipe and the connecting piece are in a connected state. When the switch solenoid valve is de-energized, the switch solenoid valve is in a closed state, and the air duct pipe and the connecting piece are in a separated state.

2. The air conditioning duct opening and closing device according to claim 1, characterized in that: A filter assembly is also provided inside the air duct.

3. The air conditioning duct opening and closing device according to claim 2, characterized in that: The side wall of the air duct corresponding to the area where the filter assembly is located is provided with a window, and the window is provided with an openable side sealing plate.

4. The air conditioning duct opening and closing device according to claim 3, characterized in that: One side of the side sealing plate is hinged to the air duct tube, and a first fixing plate is extended from the other side. The air duct tube is provided with a second fixing plate corresponding to the first fixing plate, and the first fixing plate and the second fixing plate are connected by bolts.

5. The air-conditioning duct opening and closing device according to claim 3, characterized in that: The side sealing plate and the air duct pipe are both provided with limit blocks, and the limit blocks are used to fix the filter assembly.

6. The air-conditioning duct opening and closing device according to claim 5, characterized in that: A plurality of array arc limiting grooves are provided on the surface of the limiting block, and the filter assembly is connected to the arc limiting grooves.

7. The air-conditioning duct opening and closing device according to claim 6, characterized in that: The filter assembly includes a first filter element, a second filter element, a third filter element and a fourth filter element. The first filter element, the second filter element, the third filter element and the fourth filter element are arranged in sequence and installed in the arc limiting groove, and the fourth filter element is located at an end away from the switch solenoid valve.

8. The air-conditioning duct opening and closing device according to claim 7, characterized in that: The first filter core is a polypropylene filter core, the second filter core is a HEPA filter core, the third filter core is an activated carbon filter core, and the fourth filter core is a nano material filter core.

9. The air-conditioning duct opening and closing device according to claim 1, characterized in that: The air duct is composed of an inner lining layer, a heat-insulating layer and a protective layer, wherein the inner lining layer is located on the inner side, the heat-insulating layer is located in the middle, and the protective layer is located on the outer side.

10. An air conditioner, characterized in that: It comprises an air conditioning duct opening and closing device as described in any one of claims 1 to 9.

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