Fresh air dust removal device, air conditioner and control method thereof

Abstract

The application provides a new air dust removal device, an air conditioner and a control method thereof. The new air dust removal device comprises a new air component, a switching box, a partition, a new air pipe and a return air pipe. The new air component has an air inlet and an air outlet. The switching box is connected with the new air component and has an air passing cavity. The partition is movably arranged in the air passing cavity and divides the air passing cavity into two chambers. The partition has a first position and a second position. When the partition is in the first position, the new air pipe communicates with the air inlet through one of the chambers as an air inlet pipe, and the return air pipe communicates with the air outlet through the other chamber as an air outlet pipe. When the partition is in the second position, the new air pipe communicates with the air outlet through one of the chambers as an air outlet pipe, and the return air pipe communicates with the air inlet through the other chamber as an air inlet pipe. The new air dust removal device, the air conditioner and the control method thereof can solve the problem that the new air conditioner in the prior art is prone to dust accumulation and mold breeding, thereby reducing the quality of the new air.

Description

Technical Field

[0001] This invention relates to the technical field of air conditioning equipment, and more specifically, to a fresh air dust removal device, an air conditioner, and a control method thereof. Background Technology

[0002] With the increasing use of fresh air conditioning systems in workplaces and homes, these systems effectively improve air quality in enclosed environments. However, the fresh air ducts of these systems are directly exposed to the outdoor environment. During use, dust inevitably accumulates on the inner walls of these ducts, leading to significant dirt buildup over time. In some southern cities with high rainfall and humidity, moisture easily seeps into the ducts. This damp environment combined with dust on the inner walls creates a breeding ground for mold. Especially when the temperature reaches above 28°C and humidity reaches 60%, mold begins to grow within three hours. The spores and toxins released by the mold severely impact air quality within the ducts, not only causing them to malfunction but also further deteriorating the indoor environment. Furthermore, fresh air ducts are generally fixed in place after the air conditioner is installed and cannot be disassembled or moved, making cleaning a challenging issue. Although fresh air systems are equipped with replaceable filters, these filters are consumables, and replacement costs are high.

[0003] As can be seen from the above, existing fresh air conditioners are prone to dust accumulation and mold growth, which reduces the quality of fresh air. Summary of the Invention

[0004] The main objective of this invention is to provide a fresh air dust removal device, an air conditioner, and a control method thereof to solve the problem that existing fresh air air conditioners are prone to dust accumulation and mold growth, which leads to a reduction in fresh air quality.

[0005] To achieve the above objectives, according to one aspect of the present invention, a fresh air dust removal device is provided, comprising a fresh air assembly having an air inlet and an air outlet; a switching box connected to the fresh air assembly, the switching box having an air passage chamber; a partition movably disposed inside the air passage chamber and dividing the air passage chamber into two chambers, the partition having a first position and a second position; a fresh air duct and a return air duct, wherein when the partition is in the first position, the fresh air duct communicates with the air inlet through one of the chambers as an air inlet duct, and the return air duct communicates with the air outlet through the other chamber as an air outlet duct; and when the partition is in the second position, the fresh air duct communicates with the air outlet through one of the chambers as an air outlet duct, and the return air duct communicates with the air inlet through the other chamber as an air inlet duct.

[0006] Furthermore, the air inlet and exhaust outlet are located inside the two chambers, respectively.

[0007] Furthermore, the fresh air assembly along the first direction is located on the first side of the switching box, and the fresh air duct and return air duct are located on the second side of the switching box.

[0008] Furthermore, the surface of the switching box facing the fresh air assembly has a first through hole communicating with the air inlet and a second through hole communicating with the exhaust port, and the surface of the switching box away from the fresh air assembly has a third through hole communicating with the fresh air duct and a fourth through hole communicating with the return air duct. The projection areas of the first through hole and the third through hole are spaced apart along the first direction, and the projection areas of the second through hole and the fourth through hole are spaced apart along the first direction.

[0009] Furthermore, the line connecting the first and second vias is angled to the line connecting the third and fourth vias.

[0010] Furthermore, the fresh air dust removal device also includes a fixed base, which is fixedly installed inside the air passage cavity; a first driving member, which is fixed on the fixed base; an electric heating element, which is movably installed inside the air passage cavity, with at least a portion of the electric heating element opposite to the third through hole or the electric heating element being misaligned with the third through hole; and a transmission member, in which the first driving member is drivenly connected to the electric heating element, and the first driving member provides driving force for the movement of the electric heating element.

[0011] Furthermore, the fixed base has a slide rail, the transmission component is slidably disposed inside the slide rail, the electric heating component is fixed on the transmission component, the transmission component has a rack, the first driving component is provided with a gear that meshes with the rack, and the first driving component drives the gear to rotate.

[0012] Furthermore, the fixing base includes a first fixing plate and a second fixing plate. The first fixing plate and the second fixing plate are respectively disposed on the upper and lower sides of the air inlet. The surfaces of the first fixing plate and the second fixing plate facing each other have slide rails. A transmission component is disposed on one of the first fixing plate and the second fixing plate. An electric heating component is disposed between the first fixing plate and the second fixing plate. The end of the electric heating component away from the transmission component slides in cooperation with the slide rail on the other of the first fixing plate and the second fixing plate.

[0013] Furthermore, when the partition is in the first position, the partition abuts against the surface of the second fixing plate away from the first fixing plate; when the partition is in the second position, the first fixing plate and the second fixing plate are located inside one chamber, and the surfaces of the first fixing plate and the second fixing plate facing the other chamber are coplanar and abut against the partition.

[0014] Furthermore, the fresh air dust removal device also includes a second driving component, which is mounted on the switching box and is connected to the partition. The second driving component provides driving force for the partition to rotate between the first position and the second position.

[0015] Furthermore, the second driving member is fixed on the outer surface of the switching box on the side away from the fresh air component, and at least a portion of the second driving member passes through the switching box and is connected to the partition; and / or the switching box is a cylindrical structure, and the second driving member is located at the center of the end face of the switching box away from the fresh air component.

[0016] Furthermore, the fresh air dust removal device also includes a turntable, which is rotatably disposed on the side of the switching box away from the fresh air assembly. The turntable has a first ventilation hole and a second ventilation hole; a third driving member, which is drivenly connected to the turntable; and a fan, which is disposed inside the first ventilation hole. When the partition is in the first position, the fourth through hole of the switching box is connected to the return air duct through the first ventilation hole, and the third through hole of the switching box is connected to the fresh air duct through the second ventilation hole. When the partition is in the second position, the third through hole of the switching box is connected to the fresh air duct through the first ventilation hole, and the fourth through hole of the switching box is connected to the return air duct through the second ventilation hole.

[0017] Furthermore, the turntable and the switching box are coaxial; and / or the outer circumferential surface of the turntable has a toothed structure, and the third driving component meshes with the toothed structure through a gear structure.

[0018] Furthermore, the fresh air assembly includes a housing; a mounting box disposed on the housing, the mounting box having an air inlet and an exhaust outlet; a fan disposed inside the housing and / or the mounting box; and a filter disposed at the air inlet.

[0019] Furthermore, the fresh air dust removal device also includes a particulate matter detection device, which is installed at the air inlet.

[0020] According to another aspect of the present invention, an air conditioner is provided, the air conditioner including a housing and the aforementioned fresh air dust removal device, the fresh air dust removal device being disposed inside the housing, and the fresh air component and the third driving component of the fresh air dust removal device being fixedly connected to the housing.

[0021] According to another aspect of the present invention, a control method for an air conditioner is provided. The air conditioner is as described above, and the air conditioner has an operating mode and a dust removal mode. The control method for the air conditioner includes: Obtain the real-time particle concentration in the gas flowing through the air inlet and the outdoor gas; The real-time particle concentration at the air inlet is compared with the real-time particle concentration on the outdoor side to determine whether to execute the working mode or the dust removal mode. When the operating mode is executed, the baffle of the air conditioner's fresh air dust removal device is in the first position; When the dust removal mode is activated, the baffle is in the second position.

[0022] Furthermore, comparing the real-time particle concentration at the air inlet with the real-time particle concentration on the outdoor side to determine the operating mode or dust removal mode includes: Obtain the real-time particulate concentration N1 at the air inlet; Obtain the real-time particle concentration N2 on the outdoor side. When N1 > 105% N2, execute the dust removal mode; when N1 ≤ 105% N2, execute the working mode.

[0023] Furthermore, when the dust removal mode is executed, it also includes: Start the first drive unit of the fresh air dust removal device to move the electric heating element of the fresh air dust removal device to the position aligned with the third through hole of the switching box of the fresh air dust removal device; Turn on the electric heating element; Turn on the fan of the fresh air dust removal device.

[0024] According to the technical solution of this invention, the fresh air dust removal device includes a fresh air component, a switching box, a partition, a fresh air duct, and a return air duct. The fresh air component has an air inlet and an air outlet. The switching box is connected to the fresh air component and has an air passage chamber. The partition is movably disposed inside the air passage chamber and divides the air passage chamber into two chambers. The partition has a first position and a second position. When the partition is in the first position, the fresh air duct is connected to the air inlet through one of the chambers as an air inlet duct, and the return air duct is connected to the air outlet through the other chamber as an air outlet duct. When the partition is in the second position, the fresh air duct is connected to the air outlet through one of the chambers as an air outlet duct, and the return air duct is connected to the air inlet through the other chamber as an air inlet duct.

[0025] As can be seen from the above, this application uses a partition that is movable inside the switching box. By rotating the partition between the first and second positions, the gas path can be changed, thereby enabling the gas discharged from the exhaust port to flow to the fresh air duct to clean the fresh air duct and avoid the phenomenon of a large amount of dust accumulation and bacterial growth inside the fresh air duct.

[0026] This application employs an electric heating element installed inside the switching box. When the fresh air duct needs cleaning, the electric heating element heats the gas flowing out of the exhaust port, thereby destroying the environment in which mold grows, keeping the environment dry, and improving the dust and mold removal effect.

[0027] This application incorporates a fan on a turntable to guide airflow, creating a high-speed airflow that effectively removes dust and mold from the fresh air duct, improving air quality and reducing user costs. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1A three-dimensional structural schematic diagram of the fresh air dust removal device of the present invention is shown; Figure 2 An exploded view of the fresh air dust removal device of the present invention is shown, wherein the partition is in the first position; Figure 3 An exploded view of the fresh air dust removal device of the present invention is shown from one perspective, in which the partition is in the first position; Figure 4 An exploded view of the fresh air dust removal device of the present invention is shown from another perspective, in which the partition is in the first position; Figure 5 An exploded view of the fresh air dust removal device of the present invention is shown, wherein the partition is in the second position; Figure 6 An exploded view of the fresh air dust removal device of the present invention is shown from one perspective, in which the partition is in the second position; Figure 7 An exploded view of the fresh air dust removal device of the present invention is shown from another perspective, in which the partition is in the second position; Figure 8 A three-dimensional structural schematic diagram of the fresh air assembly of the present invention is shown; Figure 9 A schematic diagram of the installation structure of the fresh air assembly and switching box of the present invention is shown, wherein the partition is in the first position; Figure 10 A schematic diagram of the installation structure of the fresh air assembly and switching box of the present invention is shown, wherein the partition is in the second position; Figure 11 A schematic diagram of the installation structure of the turntable and switching box of the present invention is shown, wherein the partition is in the first position; Figure 12 A schematic diagram of the installation structure of the turntable and switching box of the present invention is shown, wherein the partition is in the second position; Figure 13 A schematic diagram of the installation structure of the turntable and switching box of the present invention is shown, wherein the partition is in the second position; Figure 14 A schematic diagram of the cooperation structure of the switching box and the second driving member of the present invention is shown; Figure 15 A logic block diagram of the control method for the air conditioner of the present invention is shown.

[0029] The above figures include the following reference numerals: 10. Fresh air assembly; 110. Mounting box; 111. Air inlet; 112. Exhaust outlet; 20. Switching box; 210. Air passage cavity; 220. First through hole; 230. Second through hole; 240. Third through hole; 250. Fourth through hole; 30. Turntable; 40. Third drive component; 50. Fresh air duct; 60. Return air duct; 70. Electric heating element; 80. First drive component; 90. Transmission component; 1110. First fixing plate; 1120. Second fixing plate; 1130. Fan; 1140. Second drive component. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0033] Example 1

[0034] In order to solve the problem that existing fresh air conditioners are prone to dust accumulation and mold growth, which reduces the quality of fresh air, the present invention provides a fresh air dust removal device.

[0035] like Figures 1 to 14 As shown, the fresh air dust removal device includes a fresh air assembly 10, a switching box 20, a partition, a fresh air duct 50, and a return air duct 60. The fresh air assembly 10 has an air inlet 111 and an air outlet 112. The switching box 20 is connected to the fresh air assembly 10 and has an air passage chamber 210. The partition is movably disposed inside the air passage chamber 210 and divides the air passage chamber 210 into two chambers. The partition has a first position and a second position. When the partition is in the first position, the fresh air duct 50 is connected to the air inlet 111 through one chamber as an air inlet, and the return air duct 60 is connected to the air outlet 112 through the other chamber as an air outlet. When the partition is in the second position, the fresh air duct 50 is connected to the air outlet 112 through one chamber as an air outlet, and the return air duct 60 is connected to the air inlet 111 through the other chamber as an air inlet.

[0036] Specifically, this application uses a partition that is movable inside the switching box 20, so that the gas path can be changed by rotating the partition between the first position and the second position. This allows the gas discharged from the exhaust port 112 to flow to the fresh air duct 50 to clean the fresh air duct 50 and avoid the phenomenon of a large amount of dust accumulation and bacteria growth inside the fresh air duct 50.

[0037] In this application, the fresh air duct 50 can be cleaned without disassembly. The fresh air duct 50 is cleaned using the gas discharged from the exhaust port 112, which avoids the complicated operation caused by disassembly and effectively utilizes the gas.

[0038] Furthermore, the air inlet 111 and the exhaust outlet 112 are located inside the two chambers respectively. The partition divides the air passage 210 into two non-communicating chambers, with the air inlet 111 and the exhaust outlet 112 located inside the two chambers respectively. That is, the air inlet 111 is located inside one chamber, and the exhaust outlet 112 is located inside the other chamber. The air inlet 111 and the exhaust outlet 112 are located in different chambers to prevent the gas flowing out of the exhaust outlet 112 from flowing back into the air inlet 111.

[0039] It should be noted that the fresh air duct 50 and the return air duct 60 pass through and are fixed to the wall.

[0040] In this embodiment, the fresh air assembly 10 is located on the first side of the switching box 20 along the first direction, and the fresh air duct 50 and the return air duct 60 are located on the second side of the switching box 20. The fresh air assembly 10, the switching box 20, and the fresh air duct 50 and the return air duct 60 are arranged along the first direction so that all gas flows through the air passage chamber. This allows the fresh air duct 50 to supply air to the air inlet 111 or the exhaust port 112 to supply air to the fresh air duct 50 for cleaning, by adjusting the position of the partition inside the air passage chamber.

[0041] In this embodiment, the first direction is Figure 1 The X direction in the equation.

[0042] like Figures 1 to 14 As shown, the surface of the switching box 20 facing the fresh air assembly 10 has a first through hole 220 communicating with the air inlet 111 and a second through hole 230 communicating with the exhaust port 112. The surface of the switching box 20 away from the fresh air assembly 10 has a third through hole 240 communicating with the fresh air duct 50 and a fourth through hole 250 communicating with the return air duct 60. The first through hole 220 and the third through hole 240 are spaced apart along the projection area of ​​the first direction, and the second through hole 230 and the fourth through hole 250 are spaced apart along the projection area of ​​the first direction.

[0043] Specifically, when the partition is in the first position, the first through hole 220 and the third through hole 240 are connected to the same chamber, so that the gas inside the fresh air duct 50 enters the interior of the corresponding chamber through the third through hole 240 and flows to the air inlet 111 through the first through hole 220; the second through hole 230 and the fourth through hole 250 are connected to the same chamber, and the gas from the exhaust port 112 enters the interior of the corresponding chamber through the second through hole 230 and flows to the return air duct 60 through the fourth through hole 250.

[0044] When the partition is in the second position, the first through hole 220 and the fourth through hole 250 are connected to the same chamber, so that the gas inside the return air duct 60 enters the interior of the corresponding chamber through the fourth through hole 250 and flows to the air inlet 111 through the first through hole 220; the second through hole 230 and the third through hole 240 are connected to the same chamber, so that the gas from the exhaust port 112 enters the interior of the corresponding chamber through the second through hole 230 and flows to the fresh air duct 50 through the third through hole 240, so as to achieve the dust removal operation of the fresh air duct 50.

[0045] It should be noted that the third via 240 and the fourth via 250 are of the same size.

[0046] In this embodiment, the line connecting the first through hole 220 and the second through hole 230 is angled to the line connecting the third through hole 240 and the fourth through hole 250, so that the first through hole 220 and the second through hole 230 can be kept inside two different chambers when the partition rotates.

[0047] like Figures 1 to 14 As shown, the fresh air dust removal device also includes a fixed base, a first driving component 80, an electric heating component 70, and a transmission component 90. The fixed base is fixedly disposed inside the air passage cavity 210. The first driving component 80 is fixed on the fixed base. The electric heating component 70 is movably disposed inside the air passage cavity 210. At least a portion of the electric heating component 70 is opposite to the third through hole 240 or the electric heating component 70 is misaligned with the third through hole 240. The first driving component 80 is drivenly connected to the electric heating component 70 through the transmission component 90, and the first driving component 80 provides driving force for the movement of the electric heating component 70.

[0048] Specifically, the electric heating element 70 can be moved as needed to facilitate the cleaning and sterilization of the fresh air duct 50 when it is necessary to move the electric heating element 70 to the position aligned with the third air inlet, so that the gas inside the chamber can flow through the electric heating element 70 and enter the interior of the third through hole 240, and then enter the interior of the fresh air duct 50 to sterilize and clean the interior of the fresh air duct 50.

[0049] Furthermore, the first driving component 80 is a rotary motor, which drives the transmission assembly through the output shaft of the motor, thereby realizing the movement of the electric heating component 70.

[0050] Furthermore, the fixed base has a slide rail, the transmission component 90 is slidably disposed inside the slide rail, the electric heating component 70 is fixed on the transmission component 90, the transmission component 90 has a rack, the first driving component 80 is provided with a gear that meshes with the rack, and the first driving component 80 drives the gear to rotate.

[0051] In this design, the transmission component 90 is disposed inside the slide rail, so that the transmission component 90 can slide inside the slide rail under the driving action of the first driving component 80, thereby driving the electric heating component 70 to move.

[0052] Furthermore, a structure with meshing gears and racks is adopted so that the gears can rotate under the drive of the first driving member 80, thereby causing the rack to move and in turn causing the electric heating member 70 to move.

[0053] In this embodiment, the fixing base includes a first fixing plate 1110 and a second fixing plate 1120. The first fixing plate 1110 and the second fixing plate 1120 are respectively disposed on the upper and lower sides of the air inlet 111. The surfaces of the first fixing plate 1110 and the second fixing plate 1120 facing each other have slide rails. The transmission member 90 is disposed on one of the first fixing plate 1110 and the second fixing plate 1120. The electric heating member 70 is erected between the first fixing plate 1110 and the second fixing plate 1120. The end of the electric heating member 70 away from the transmission member 90 is slidably engaged with the slide rail on the other of the first fixing plate 1110 and the second fixing plate 1120.

[0054] The structure of the first fixing plate 1110 and the second fixing plate 1120 improves the stability of the installation of the electric heating element 70, the transmission element 90 and the first driving element 80. One end of the electric heating element 70 is fixedly connected to the transmission element 90, and the other end of the electric heating element 70 slides inside the slide rail. The slide rail has the effect of limiting and assisting movement, which helps to improve the movement efficiency and movement accuracy of the electric heating element 70.

[0055] It should be noted that when the partition is in the first position, the partition and the surface of the second fixing plate 1120 away from the first fixing plate 1110 abut against each other to achieve the technical effect of limiting the partition; at the same time, when the partition is in the second position, the first fixing plate 1110 and the second fixing plate 1120 are located inside one chamber, and the surfaces of the first fixing plate 1110 and the second fixing plate 1120 facing the other chamber are coplanar and abut against the partition to achieve the technical effect of limiting the partition.

[0056] like Figures 1 to 14As shown, the fresh air dust removal device also includes a second drive component 1140, which is disposed on the switching box 20. The second drive component 1140 is driven to the partition and provides driving force for the partition to rotate between the first position and the second position.

[0057] Specifically, the partition switches between the first position and the second position via the second driving component 1140. The second driving component 1140 can be a rotary motor, a rotary cylinder, a rotary hydraulic cylinder, or other structural components.

[0058] Furthermore, the second driving member 1140 is fixed on the outer surface of the switching box 20 on the side away from the fresh air assembly 10. At least a portion of the second driving member 1140 penetrates the switching box 20 and is connected to the partition. The second driving member 1140 is fixedly disposed on the switching box 20 so as to realize the driving connection between the second driving member 1140 and the partition through the box body penetrating the switching box 20.

[0059] In this embodiment, the switching box 20 is a cylindrical structure, and the second driving member 1140 is located at the center of the switching box 20 away from the end face of the fresh air component 10, so as to realize that the partition rotates inside the air passage cavity 210 during the partition position switching process, so as to avoid the phenomenon that the partition is offset and the partition cannot separate the air passage cavity 210.

[0060] like Figures 1 to 14 As shown, the fresh air dust removal device also includes a turntable 30, a third drive unit 40, and a fan 1130. The turntable 30 is rotatably disposed on the side of the switching box 20 away from the fresh air assembly 10. The turntable 30 has a first ventilation hole and a second ventilation hole. The third drive unit 40 is drivenly connected to the turntable 30. The fan 1130 is disposed inside the first ventilation hole. When the partition is in the first position, the fourth through hole 250 of the switching box 20 is connected to the return air duct 60 through the first ventilation hole, and the third through hole 240 of the switching box 20 is connected to the fresh air duct 50 through the second ventilation hole. When the partition is in the second position, the third through hole 240 of the switching box 20 is connected to the fresh air duct 50 through the first ventilation hole, and the fourth through hole 250 of the switching box 20 is connected to the return air duct 60 through the second ventilation hole.

[0061] Specifically, the first ventilation hole and the second ventilation hole rotate with the turntable 30 so that when it is necessary to perform dust removal operation on the fresh air duct 50, the first ventilation hole is connected to the fresh air duct 50, and the exhaust port 112 flows towards the fresh air duct 50 through the air guiding action of the fan 1130 to clean the duct.

[0062] Furthermore, the turntable 30 and the switching box 20 are coaxial, so that the rotation can enable the first ventilation hole to communicate with the third through hole 240 and also with the fourth through hole 250.

[0063] Furthermore, the turntable 30 has a toothed structure on its outer circumference. The third drive component 40 meshes with the toothed structure through a gear structure. The third drive component 40 is connected to the housing. The third drive component 40 is a rotating motor, a rotating cylinder, or a rotating hydraulic cylinder, etc.

[0064] In this embodiment, the fresh air assembly 10 includes a housing, a mounting box 110, a fan, and a filter. The mounting box 110 is disposed on the housing and has an air inlet 111 and an exhaust outlet 112. The fan is disposed inside the housing and / or the mounting box 110. The filter is disposed at the air inlet 111, wherein the filter is used to filter the gas entering the air inlet 111, and the filter may be filter cotton.

[0065] In this embodiment, the fresh air dust removal device further includes a particulate matter detection device, which is installed at the air inlet 111 to detect the particulate matter concentration information of the gas at the air inlet 111. The fresh air dust removal device also includes a particulate matter detection device installed on the outdoor side to detect the concentration of particulate matter in the outdoor gas. The particulate matter detection device is a sensor and is connected to the controller inside the air conditioner.

[0066] Example 2

[0067] This embodiment provides an air conditioner, which includes a casing and the fresh air dust removal device described in Embodiment 1.

[0068] Specifically, the fresh air dust removal device is installed inside the casing, and the fresh air component 10 and the third drive component 40 of the fresh air dust removal device are fixedly connected to the casing.

[0069] Furthermore, the air conditioner includes a controller disposed inside the housing, which is signal-connected to a first drive unit 80, a second drive unit 1140, a third drive unit 40, an electric heating element 70, and a fan 1130.

[0070] In this embodiment, the air conditioner has a working mode and a dust removal mode. When the air conditioner is in working mode, the fresh air duct 50, the second ventilation hole, the third through hole 240, the first through hole 220, and the air inlet 111 form an air intake path; the exhaust port 112, the second through hole 230, the fourth through hole 250, the first ventilation hole, and the return air duct 60 form an exhaust path. When the air conditioner is in dust removal mode, the return air duct 60, the second ventilation hole, the fourth through hole 250, the first through hole 220, and the air inlet 111 form an air intake path; the exhaust port 112, the second through hole 230, the third through hole 240, the first ventilation hole, and the fresh air duct 50 form an exhaust path.

[0071] Example 3

[0072] This embodiment provides a control method for an air conditioner. The air conditioner is the one described in Embodiment 2. The air conditioner has a working mode and a dust removal mode, such as... Figure 15 As shown, the control methods for air conditioners include: The real-time particle concentrations in the gas flowing through the air inlet 111 and the outdoor gas are obtained. The real-time particle concentration at the air inlet 111 is compared with the real-time particle concentration on the outdoor side to determine whether to execute the working mode or the dust removal mode. When the operating mode is executed, the baffle of the air conditioner's fresh air dust removal device is in the first position; When the dust removal mode is activated, the baffle is in the second position.

[0073] Furthermore, before obtaining the real-time particle concentration in the gas flowing through the air inlet 111 and the outdoor gas, the air conditioner needs to be started first. The air conditioner can be started by remote control or by pressing a button.

[0074] Furthermore, comparing the real-time particle concentration at the air inlet 111 with the real-time particle concentration on the outdoor side and determining the operating mode or dust removal mode to be executed includes: Obtain the real-time particulate concentration N1 at the air inlet 111; Obtain the real-time particle concentration N2 on the outdoor side. When N1 > 105% N2, execute the dust removal mode; when N1 ≤ 105% N2, execute the working mode.

[0075] When the dust removal mode is executed, it also includes: Start the first drive unit 80 of the fresh air dust removal device to move the electric heating element 70 of the fresh air dust removal device to the position aligned with the third through hole 240 of the switching box 20 of the fresh air dust removal device; Turn on the electric heating element 70; Start the fan 1130 of the fresh air dust removal device.

[0076] In this embodiment, the air conditioner has a working mode and a dust removal mode. When the air conditioner is in working mode, the fresh air duct 50, the second ventilation hole, the third through hole 240, the first through hole 220, and the air inlet 111 form an air intake path; the exhaust port 112, the second through hole 230, the fourth through hole 250, the first ventilation hole, and the return air duct 60 form an exhaust path. When the air conditioner is in dust removal mode, the return air duct 60, the second ventilation hole, the fourth through hole 250, the first through hole 220, and the air inlet 111 form an air intake path; the exhaust port 112, the second through hole 230, the third through hole 240, the first ventilation hole, and the fresh air duct 50 form an exhaust path.

[0077] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: 1. This application uses a partition that is movable inside the switching box 20, so that the gas path can be changed by rotating the partition between the first position and the second position. This allows the gas discharged from the exhaust port 112 to flow to the fresh air duct 50 to clean the fresh air duct 50 and avoid the phenomenon of a large amount of dust accumulation and bacteria growth inside the fresh air duct 50.

[0078] 2. This application uses an electric heating element 70 installed inside the switching box 20 so that when the fresh air duct 50 needs to be cleaned, the gas flowing out of the exhaust port 112 can be heated by the electric heating element 70, thereby destroying the mold environment through the heated gas, keeping the environment dry, and achieving better dust and mold removal effect.

[0079] 3. This application provides a fan 1130 on the turntable 30 to guide airflow, thereby creating a high-speed airflow that effectively removes dust and mold from the fresh air duct 50, improves fresh air quality, and reduces user operating costs.

[0080] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0081] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0082] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fresh air dust removal device, characterized in that, include: Fresh air assembly (10), the fresh air assembly (10) having an air inlet (111) and an exhaust outlet (112). A switching box (20) is connected to the fresh air assembly (10) and has an air passage cavity (210). A partition is movably disposed inside the air passage cavity (210) and divides the air passage cavity (210) into two chambers. The partition has a first position and a second position. The fresh air duct (50) and the return air duct (60) are connected as follows: when the partition is in the first position, the fresh air duct (50) is connected to the air inlet (111) through one of the chambers as an air inlet duct, and the return air duct (60) is connected to the air outlet (112) through the other chamber as an air outlet duct; when the partition is in the second position, the fresh air duct (50) is connected to the air outlet (112) through one of the chambers as an air outlet duct, and the return air duct (60) is connected to the air inlet (111) through the other chamber as an air inlet duct. The fresh air dust removal device also includes: A turntable (30) is rotatably disposed on the side of the switching box (20) away from the fresh air assembly (10), and the turntable (30) has a first ventilation hole and a second ventilation hole; The third driving component (40) is drivingly connected to the turntable (30); A fan (1130) is disposed inside the first ventilation hole; When the partition is in the first position, the fourth through hole (250) of the switching box (20) is connected to the return air duct (60) through the first ventilation hole, and the third through hole (240) of the switching box (20) is connected to the fresh air duct (50) through the second ventilation hole; when the partition is in the second position, the third through hole (240) of the switching box (20) is connected to the fresh air duct (50) through the first ventilation hole, and the fourth through hole (250) of the switching box (20) is connected to the return air duct (60) through the second ventilation hole.

2. The fresh air dust removal device according to claim 1, characterized in that, The air inlet (111) and the exhaust outlet (112) are located inside the two chambers, respectively.

3. The fresh air dust removal device according to claim 1, characterized in that, The fresh air assembly (10) is located on the first side of the switching box (20) along the first direction, and the fresh air duct (50) and the return air duct (60) are located on the second side of the switching box (20).

4. The fresh air dust removal device according to claim 3, characterized in that, The switching box (20) has a first through hole (220) communicating with the air inlet (111) and a second through hole (230) communicating with the exhaust port (112) on the surface facing the fresh air assembly (10). The switching box (20) has a third through hole (240) communicating with the fresh air duct (50) and a fourth through hole (250) communicating with the return air duct (60) on the surface away from the fresh air assembly (10). The first through hole (220) and the third through hole (240) are spaced apart along the projection area of ​​the first direction, and the second through hole (230) and the fourth through hole (250) are spaced apart along the projection area of ​​the first direction.

5. The fresh air dust removal device according to claim 4, characterized in that, The line connecting the first via (220) and the second via (230) is angled to the line connecting the third via (240) and the fourth via (250).

6. The fresh air dust removal device according to claim 4, characterized in that, The fresh air dust removal device also includes: A fixing seat is fixedly disposed inside the air passage cavity (210); The first driving member (80) is fixed on the fixed base; An electric heating element (70) is movably disposed inside the air passage cavity (210), and at least a portion of the electric heating element (70) is opposite to the third through hole (240) or the electric heating element (70) is misaligned with the third through hole (240); The transmission component (90) and the first driving component (80) are driven to the electric heating component (70) through the transmission component (90), and the first driving component (80) provides driving force for the movement of the electric heating component (70).

7. The fresh air dust removal device according to claim 6, characterized in that, The fixed base has a slide rail, the transmission component (90) is slidably disposed inside the slide rail, the electric heating component (70) is fixed on the transmission component (90), the transmission component (90) has a rack, the first driving component (80) is provided with a gear that meshes with the rack, and the first driving component (80) drives the gear to rotate.

8. The fresh air dust removal device according to claim 7, characterized in that, The fixing base includes: First fixing plate (1110); The second fixing plate (1120) is provided on the upper and lower sides of the air inlet (111), respectively. The first fixing plate (1110) and the second fixing plate (1120) have the slide rail on their mutually facing surfaces. The transmission member (90) is provided on one of the first fixing plate (1110) and the second fixing plate (1120). The electric heating member (70) is placed between the first fixing plate (1110) and the second fixing plate (1120). The end of the electric heating member (70) away from the transmission member (90) is slidably engaged with the slide rail on the other of the first fixing plate (1110) and the second fixing plate (1120).

9. The fresh air dust removal device according to claim 8, characterized in that, When the partition is in the first position, the partition abuts against the surface of the second fixing plate (1120) away from the first fixing plate (1110); When the partition is in the second position, the first fixing plate (1110) and the second fixing plate (1120) are located inside a chamber, and the surfaces of the first fixing plate (1110) and the second fixing plate (1120) facing the other chamber are coplanar and abut against the partition.

10. The fresh air dust removal device according to claim 1, characterized in that, The fresh air dust removal device also includes a second driving component (1140), which is disposed on the switching box (20). The second driving component (1140) is drivenly connected to the partition and provides driving force for the partition to rotate between the first position and the second position.

11. The fresh air dust removal device according to claim 10, characterized in that, The second drive member (1140) is fixed to the outer surface of the switching box (20) on the side opposite to the fresh air assembly (10), and at least a portion of the second drive member (1140) penetrates the switching box (20) and is connected to the partition; and / or The switching box (20) has a cylindrical structure, and the second driving member (1140) is located at the center of the switching box (20) away from the end face of the fresh air component (10).

12. The fresh air dust removal device according to claim 1, characterized in that, The turntable (30) is coaxial with the switching box (20); and / or The turntable (30) has a toothed structure on its outer circumferential surface, and the third driving member (40) meshes with the toothed structure through a gear structure.

13. The fresh air dust removal device according to claim 1, characterized in that, The fresh air component (10) includes: shell; Mounting box (110), which is disposed on the housing, has the air inlet (111) and the exhaust port (112). A fan, the fan being disposed inside the housing and / or the mounting box (110); A filter element is disposed at the air inlet (111).

14. The fresh air dust removal device according to any one of claims 1 to 13, characterized in that, The fresh air dust removal device also includes a particulate matter detection device, which is located at the air inlet (111).

15. An air conditioner, characterized in that, The air conditioner includes: chassis; The fresh air dust removal device according to any one of claims 1 to 14, wherein the fresh air dust removal device is disposed inside the housing, and the fresh air component (10) and the third driving component (40) of the fresh air dust removal device are both fixedly connected to the housing.

16. A control method for an air conditioner, characterized in that, The air conditioner is the air conditioner according to claim 15, the air conditioner has a working mode and a dust removal mode, and the control method of the air conditioner includes: Obtain the real-time particle concentration in the gas flowing through the air inlet (111) and the outdoor gas; The real-time particle concentration at the air inlet (111) is compared with the real-time particle concentration on the outdoor side to determine whether to execute the working mode or the dust removal mode. When the operating mode is executed, the partition of the fresh air dust removal device of the air conditioner is in the first position; When the dust removal mode is executed, the partition is in the second position.

17. The control method for an air conditioner according to claim 16, characterized in that, The step of comparing the real-time particle concentration at the air inlet (111) with the real-time particle concentration on the outdoor side and determining whether to execute the working mode or the dust removal mode includes: Obtain the real-time particle concentration N1 at the air inlet (111); Obtain the real-time particle concentration N2 on the outdoor side. When N1 and N2 satisfy N1 > 105% N2, execute the dust removal mode; when N1 and N2 satisfy N1 ≤ 105% N2, execute the working mode.

18. The control method for an air conditioner according to claim 16, characterized in that, The method of executing the dust removal mode also includes: Start the first drive unit (80) of the fresh air dust removal device and move the electric heating element (70) of the fresh air dust removal device to the position aligned with the third through hole (240) of the switching box (20) of the fresh air dust removal device; Turn on the electric heating element (70); Start the fan (1130) of the fresh air dust removal device.

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