Filtering device, oxygen production equipment, air conditioner outdoor unit and air conditioner

Abstract

The utility model provides a kind of filtering device, oxygen production equipment, air conditioner outdoor unit and air conditioner, filtering device is arranged in air conditioner outdoor unit, filtering device includes: filter, including filter shell and the inlet filter screen of setting at the filter shell's filter entrance;Cleaner, including cleaning drive part and cleaning component, cleaning component is movably arranged outside inlet filter screen and contact with inlet filter screen, cleaning drive part is driven connection with cleaning component, to drive cleaning component movement, to clean inlet filter screen, to solve the setting of oxygen production device and filtering device in the oxygen production air conditioner in prior art cannot simultaneously meet the problems that pipeline layout is simple and easy to clean.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a filtration device, an oxygen generator, an outdoor air conditioning unit, and an air conditioner. Background Technology

[0002] Currently, air-conditioning technology that generates oxygen is widely used as an effective means of improving indoor air quality. However, there are various options for the location of the filtration and oxygen generation devices in oxygen-generating air conditioners, including indoor oxygen generation plus filtration, outdoor oxygen generation plus filtration, outdoor oxygen generation plus indoor filtration, and outdoor filtration plus indoor oxygen generation. In existing technologies, to address the noise generated during oxygen generation, the oxygen generation device is placed in the outdoor unit, mainly using either outdoor oxygen generation plus filtration or outdoor oxygen generation plus indoor filtration.

[0003] When using an outdoor oxygen generator and filter solution, both the oxygen generator and the filter are located in the outdoor unit. Because the filter lacks an effective self-cleaning function, the filtration efficiency gradually decreases over time, thus affecting the overall performance and user experience of the oxygen generator air conditioner.

[0004] When using an outdoor oxygen generator and indoor filtration system, the oxygen generator is located in the outdoor unit and the filtration unit in the indoor unit. While this ensures air quality and facilitates filter cleaning, the complex duct layout—where air first enters the indoor unit from the outdoor unit for filtration, then returns to the outdoor unit for oxygen generation, and finally reaches the indoor environment—leads to the following problems: (1) Because the ductwork is long and winding, air circulates between the indoor and outdoor units multiple times. Especially in hot or cold seasons, additional energy is required to maintain the air temperature in the ductwork within a suitable oxygen production range. In addition, the filtration and oxygen production processes themselves also consume energy, and the complex ductwork layout further exacerbates the overall system's energy consumption.

[0005] (2) To accommodate complex piping layouts, additional installation costs and more specialized installation techniques may be required. This not only increases the initial production cost and size of the air conditioner, but may also limit the installation range of the air conditioner. For some buildings with limited space or complex structures, the installation difficulty of the air conditioner will be greatly increased.

[0006] (3) Although the filter consumables are relatively easy to replace in the indoor unit, the complex piping system may accumulate dust and impurities during operation. Cleaning and maintaining these parts is relatively difficult and requires professional personnel to conduct regular inspections and cleaning, which increases maintenance costs and time.

[0007] (4) Complex piping systems require additional indoor and outdoor space, and sometimes even require modifications to the building structure to accommodate the installation and layout of the pipes, which to some extent limits the flexibility and applicability of the air conditioning system.

[0008] (5) The complexity of the pipeline increases the possibility of system failure, such as leaks at pipeline connections and pipeline blockages. These problems may affect the oxygen production quality and normal operation of the system, reducing the overall reliability of the system. Increased pipeline complexity: Air needs to be drawn in from the air inlet of the outdoor unit, sent through the pipeline to the indoor unit to be purified by the filter device, and then the purified air returns to the outdoor unit to be enriched with oxygen by the oxygen generator. After that, the high-concentration oxygen needs to be transported back to the indoor unit through the pipeline again, and finally enter the indoor environment. This series of air transport paths leads to the complexity of the pipeline layout, which not only increases the difficulty of installation and maintenance, but may also lead to energy loss and reduced efficiency in the air transmission process due to the long and tortuous pipeline.

[0009] (6) Air circulates between the indoor and outdoor units multiple times, especially during hot or cold seasons, requiring additional energy to maintain the air temperature in the duct within a suitable oxygen production range. In addition, the filtration and oxygen production processes themselves also consume energy, and the complex duct design further exacerbates the overall system's energy consumption. Utility Model Content

[0010] The main purpose of this utility model is to provide a filtration device, an oxygen generating device, an outdoor air conditioning unit, and an air conditioner to solve the problem that the oxygen generating device and filtration device in the existing oxygen-generating air conditioner cannot simultaneously meet the requirements of simple pipeline layout and easy cleaning.

[0011] To achieve the above objectives, according to a first aspect of the present invention, a filtration device is provided, disposed inside an outdoor unit of an air conditioner. The filtration device includes: a filter, comprising a filter housing and an inlet filter screen disposed at the filter inlet of the filter housing; and a cleaner, comprising a cleaning drive unit and a cleaning component, wherein the cleaning component is movably disposed outside the inlet filter screen and in contact with the inlet filter screen, and the cleaning drive unit is drivenly connected to the cleaning component to drive the cleaning component to move and clean the inlet filter screen.

[0012] Furthermore, the filter also includes: a filter element, the filter housing including a receiving cavity and a filter inlet and a filter outlet respectively communicating with the receiving cavity, the filter element being disposed within the receiving cavity; and / or a delivery pipe, the delivery pipe being disposed at the filter outlet of the filter housing; and / or a filter support, the filter support being disposed on the mounting base surface of the filter and connected to the filter housing to support the filter housing; and / or an airflow detection component, the airflow detection component being disposed at the filter inlet and located inside the inlet filter screen, for detecting the real-time flow rate of air flowing into the filter inlet, so as to determine whether the inlet filter screen needs cleaning based on the real-time flow rate; and / or a dust detection component, the dust detection component being located at the filter inlet and facing the inlet filter screen, for detecting the real-time light intensity reflected by dust on the inlet filter screen, so as to determine whether the inlet filter screen needs cleaning based on the real-time light intensity.

[0013] Furthermore, a filter inlet and a filter outlet are respectively provided at opposite ends of the extension direction of the filter housing. The extension direction of the filter housing is parallel to the base surface to be installed on the filter. The angle between the inlet filter screen and the extension direction of the filter housing is an acute angle β, and the distance between the inlet filter screen and the filter outlet gradually increases in the direction away from the base surface to be installed.

[0014] Furthermore, the cleaning component includes a cleaning brush, the length of which is greater than or equal to the maximum size of the inlet filter screen, and the cleaning brush is parallel to the inlet filter screen; the cleaning drive unit includes a cleaning motor, the motor body of which is disposed on the outer peripheral surface of the filter housing, and the motor shaft of the cleaning motor is connected to the first end of the cleaning brush to drive the cleaning brush to swing around the axis of the motor shaft to contact or avoid the inlet filter screen.

[0015] Furthermore, a motor support mechanism is provided on the filter housing, and the motor body is connected to the motor support mechanism by a first fastener; and / or the cleaning brush is connected to the motor shaft by a second fastener. The first end of the cleaning brush is provided with a shaft hole and a fixing hole that are perpendicular to each other and communicate with each other. The shaft hole is used to fit on the motor shaft, and the second fastener is fixedly connected to the fixing hole and pressed against the motor shaft.

[0016] Furthermore, the cleaning component is a cleaning brush, the length of the brushing area for washing is greater than or equal to the maximum size of the inlet filter screen, and the cleaning brush is parallel to the inlet filter screen; the cleaning drive unit includes a drive fan blade and a connecting shaft, the drive fan blade is connected to the middle of the cleaning brush through the connecting shaft to drive the cleaning brush to rotate; wherein, some blades of the drive fan blade are located in the outdoor fan mounting cavity of the outdoor unit of the air conditioner, so as to rotate under the drive of the airflow drawn into the outdoor fan mounting cavity.

[0017] Furthermore, the rotation axis of the drive fan blade is collinear with the axis of the connecting shaft, and the axis of the connecting shaft is perpendicular to the cleaning brush; and / or the filter device includes a shaft support seat, which is disposed on the mounting base surface of the filter, and the connecting shaft is rotatably mounted on the shaft support seat.

[0018] According to a second aspect of the present invention, an oxygen generating device is provided, which is installed in an outdoor unit of an air conditioner. The oxygen generating device includes: the aforementioned filter device; an air compressor, the inlet of which is connected to the filter outlet of the filter housing of the filter device; and an oxygen generating device, the inlet of which is connected to the outlet of the air compressor.

[0019] According to a third aspect of the present invention, an outdoor unit for an air conditioner is provided, comprising: an outdoor unit housing, a support plate disposed inside the outdoor unit housing to divide the outdoor unit housing into an oxygen generating installation cavity and an external fan installation cavity, the support plate being provided with a connecting hole for connecting the oxygen generating installation cavity and the external fan installation cavity; and the aforementioned oxygen generating device, the oxygen generating device being disposed in the oxygen generating installation cavity and connected to the support plate.

[0020] According to a fourth aspect of the present invention, an air conditioner is provided, including the above-described outdoor unit.

[0021] Applying the technical solution of this utility model, the filtration device of this utility model is installed inside the outdoor unit of an air conditioner. The filtration device includes: a filter, including a filter housing and an inlet filter screen disposed at the filter inlet of the filter housing; and a cleaner, including a cleaning drive unit and a cleaning component. The cleaning component is movably disposed outside the inlet filter screen and in contact with the inlet filter screen. The cleaning drive unit is driven to drive the cleaning component to move, thereby cleaning the inlet filter screen. Thus, by installing the filtration device and the oxygen generator together inside the outdoor unit of the air conditioner, and placing the cleaner at the filter, this utility model utilizes the driving action of the cleaning drive unit on the cleaning component to remove dust and impurities from the inlet filter screen, thereby maintaining smooth airflow in the filter, achieving continuous and efficient operation of the filter, reducing the filter maintenance frequency, reducing filter energy consumption, and improving filter filtration efficiency. This ensures that the quality of the filtered air received by the oxygen generator is not affected when the oxygen generator is started, solving the problem in existing oxygen-generating air conditioners where the arrangement of the oxygen generator and the filtration device cannot simultaneously satisfy the requirements of simple pipe layout and easy cleaning. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1A schematic diagram of the structure of a first embodiment of the filtration device according to the present invention is shown; Figure 2 It shows Figure 1 A cross-sectional view of the filter device shown; Figure 3 It shows Figure 1 The right view of the filter device shown; Figure 4 It shows Figure 1 The diagram shows the structure of the filter device when the cleaning brush oscillates in the first direction. Figure 5 It shows Figure 4 The filter device shown is a right view of the cleaning brush swinging in the first direction (i.e., the R direction). Figure 6 It shows Figure 1 The diagram shows the structure of the filter device when the cleaning brush oscillates in the second direction. Figure 7 It shows Figure 6 The filter device shown is a right view of the cleaning brush swinging in the second direction (i.e., the S direction). Figure 8 It shows Figure 1 The front view of the filter and motor support mechanism of the filter device shown; Figure 9 It shows Figure 8 A top view of the filter and motor support mechanism shown; Figure 10 It shows Figure 8 The right view of the filter and motor support mechanism shown; Figure 11 It shows Figure 8 Left view of the filter and motor support mechanism shown; Figure 12 It shows Figure 1 A schematic diagram of the cleaning components of the filter device shown; Figure 13 The outdoor unit of the air conditioner is shown in the diagram. Figure 1 A schematic diagram of the oxygen generator in the first embodiment of the filtration device shown; Figure 14 A schematic diagram of the structure of an air conditioner outdoor unit in an oxygen-generating device according to a second embodiment of the filtration device of this utility model is shown; Figure 15 It shows Figure 14 The front view of the filter device on the support plate of the indoor air conditioning unit shown; Figure 16 It shows Figure 15 A schematic diagram of the filter device with the support plate shown. Figure 17 It shows Figure 16 A partial enlarged view of the filter device at point E on the support plate shown; Figure 18 It shows Figure 17 A schematic diagram of the filter and filter support of the filtration device shown; Figure 19 It shows Figure 18 Side view of the filter and filter support shown; Figure 20 It shows Figure 17 The diagram shows the structure of the cleaner in the filter device. Figure 21 It shows Figure 17 The diagram shows the structural structure of the bearing in the filter device. Figure 22 It shows Figure 17 A schematic diagram of the shaft support base of the filter device shown; Figure 23 A structural schematic diagram of an embodiment of an air conditioner according to the present invention is shown.

[0023] The above figures include the following reference numerals: 100. Filter; 1. Shell; 11. Receiving cavity; 2. Filter element; 3. Inlet filter screen; 4. Bearing; 41. Slot; 200. Cleaner; 5. Cleaning drive unit; 51. Cleaning motor; 52. Drive fan blades; 53. Connecting shaft; 54. Snap-fit ​​ring; 6. Cleaning components; 60. Cleaning brush; 61. Rotary shaft hole; 62. Fixing hole; 63. Main brush body; 64. Connecting end cap; 7. Transport pipelines; 8. Filter support base; 9. Motor support mechanism; 10. Shaft support; 101. Base; 102. Sleeve; 300. Air compressor; 400. Oxygen generating equipment; 500. Air conditioner outdoor unit; 510. Outdoor unit housing; 520. Support plate; 521. Connecting hole; 530. Oxygen generator mounting cavity; 540. External fan mounting cavity; 600. Air conditioner indoor unit; 700. External fan. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 23 As shown, this utility model provides a filtration device installed inside an outdoor unit 500 of an air conditioner. The filtration device includes: a filter 100, including a filter housing 1 and an inlet filter screen 3 disposed at the filter inlet of the filter housing 1; and a cleaner 200, including a cleaning drive unit 5 and a cleaning component 6. The cleaning component 6 is movably disposed outside the inlet filter screen 3 and in contact with the inlet filter screen 3. The cleaning drive unit 5 is drivenly connected to the cleaning component 6 to drive the cleaning component 6 to move and clean the inlet filter screen 3.

[0026] In this way, by setting the filter and oxygen generator together inside the outdoor unit 500 of the air conditioner, and installing a cleaner 200 at the filter 100, the dust and impurities on the inlet filter screen 3 can be removed by the driving action of the cleaning drive unit 5 on the cleaning component 6, thereby maintaining the smooth airflow in the filter 100, realizing the continuous and efficient operation of the filter 100, reducing the maintenance frequency of the filter 100, reducing the energy consumption of the filter 100, and improving the filtration efficiency of the filter 100. This ensures that the quality of the filtered air received by the oxygen generator is not affected when the oxygen generator is started, and solves the problem that the setting of the oxygen generator and filter in the oxygen-generating air conditioner in the prior art cannot simultaneously meet the requirements of simple pipeline layout and easy cleaning.

[0027] like Figures 1 to 19 As shown, the filter 100 further includes: a filter element 2, the filter housing 1 including a receiving cavity 11 and a filter inlet and a filter outlet respectively communicating with the receiving cavity 11, the filter element 2 being disposed within the receiving cavity 11; and / or a conveying pipe 7, the conveying pipe 7 being disposed at the filter outlet of the filter housing 1; and / or a filter support 8, the filter support 8 being disposed on the mounting base surface of the filter 100 and connected to the filter housing 1 to support the filter housing 1; and / or an airflow detection component, the airflow detection component being disposed at the filter inlet and located inside the inlet filter screen 3, for detecting the real-time flow rate of the air flowing into the filter inlet, so as to determine whether the inlet filter screen 3 needs cleaning based on the real-time flow rate; and / or a dust detection component, the dust detection component being located at the filter inlet and facing the inlet filter screen 3, for detecting the real-time light intensity reflected by the dust on the inlet filter screen 3, so as to determine whether the inlet filter screen 3 needs cleaning based on the real-time light intensity.

[0028] The filter 100 of this utility model, through the inlet filter screen 3 and filter element 2, forms a multi-stage filtration of air, further purifying the air and significantly improving air quality. This results in a purer and more efficient oxygen production process. The delivery pipe 7 ensures the purified air can be smoothly transmitted to the subsequent air compressor and oxygen generator. Furthermore, the filter support base 8 stabilizes the entire filter device, enhancing its structural stability. The implementation results in significantly improved air quality and a purer and more efficient oxygen production process.

[0029] Specifically, the inlet filter 3 is a coarse filter, used to filter out larger impurities and dust in the air; the filter element 2 is a high-efficiency filter, used to filter out smaller impurities and dust in the air.

[0030] In air conditioners with oxygen generation functions, an airflow detection component is located at the filter inlet, close to the inner side of the inlet filter 3. This component monitors the real-time airflow into the filter inlet, accurately reflecting the degree of clogging on the inlet filter 3. As dust and impurities accumulate on the inlet filter 3, the airflow naturally decreases. This significant change is the key basis for the system to determine whether the filter needs cleaning. The control system automatically determines whether the inlet filter 3 needs cleaning based on the detection results of the airflow detection component and automatically triggers the cleaner 200 when cleaning is required. This avoids the delay of manual cleaning and ensures the air conditioner operates in optimal condition. More importantly, the airflow detection component also prevents unnecessary over-cleaning by dynamically adjusting the cleaning cycle of the cleaner 200 to maintain an appropriate load, thereby optimizing the overall performance and energy efficiency ratio of the air conditioner. For users, the airflow detection component not only provides intuitive feedback on the filtration status, enhancing their perception of the air quality flowing into the room, but also significantly reduces the burden of manual maintenance, improving the convenience and satisfaction of daily use.

[0031] The dust detection component is positioned at the filter inlet, facing the inlet filter screen 3, to detect the real-time light intensity reflected by the dust on the inlet filter screen 3. This accurately reflects the degree of clogging of the inlet filter screen 3. The control system can automatically determine whether the inlet filter screen 3 needs cleaning based on the detection results of the dust detection component. This component can instantly reflect the cleanliness of the filter screen, preventing the filtration efficiency of the filter 100 from declining, significantly improving the maintenance efficiency of the filtration device, reducing the burden of manual maintenance, and thus lowering maintenance costs.

[0032] like Figure 8 and Figure 19As shown, filter inlet and filter outlet are respectively provided at opposite ends of the extension direction of filter housing 1. The extension direction of filter housing 1 is parallel to the mounting base of filter 100. The angle between inlet filter screen 3 and the extension direction of filter housing 1 is acute angle β, and the distance between inlet filter screen 3 and filter outlet gradually increases in the direction away from the mounting base.

[0033] like Figure 1 As shown, direction A is the airflow direction at the filter inlet, direction B is the airflow direction at the filter outlet, and direction C is the falling direction of dust and other particles at the inlet filter screen 3.

[0034] The filter housing 1 and the inlet filter screen 3 of this utility model are set at a specific angle, which ensures that the cleaner 200 can clean the grille more comprehensively and efficiently, making it easier for impurities and dust to fall off the grille surface, effectively reducing the probability of dust being re-inhaled into the filter inlet, thereby improving the thoroughness and efficiency of cleaning, reducing the frequency of cleaning needs, saving energy and reducing mechanical wear, and extending the service life of the cleaner 200 and filter consumables; even when the cleaner 200 is not working, dust and impurities may naturally slide down along the inclined inlet filter screen 3 instead of remaining on the surface of the inlet filter screen 3, reducing the residence time of dust on the inlet filter screen 3, and further ensuring the cleanliness of the air entering the filter inlet.

[0035] like Figures 1 to 13 As shown, the cleaning component 6 is a cleaning brush 60. The length of the brushing area of ​​the cleaning brush 60 is greater than or equal to the maximum size of the inlet filter screen 3. The cleaning brush 60 is parallel to the inlet filter screen 3. The cleaning drive unit 5 includes a cleaning motor 51. The motor body of the cleaning motor 51 is disposed on the outer peripheral surface of the filter housing 1. The motor shaft of the cleaning motor 51 is connected to the first end of the cleaning brush 60 to drive the cleaning brush 60 to swing around the axis of the motor shaft so as to contact or avoid the inlet filter screen 3.

[0036] The cleaner 200 of this utility model's filter device, driven by the cleaning motor 51, oscillates the cleaning brush 60, achieving comprehensive cleaning of the inlet filter 3. This avoids cleaning dead spots and blind areas, significantly improving the cleaning efficiency of the inlet filter 3, extending the maintenance cycle of the filter 100, and reducing the operating cost of the air conditioner. Furthermore, the cleaning motor 51 is designed to activate only when the control system determines that the inlet filter 3 needs cleaning, enabling intelligent, automated, and controllable cleaning time and process. This eliminates the need for manual judgment and operation, greatly enhancing the system's intelligence level and user experience. It also avoids constantly cleaning the inlet filter 3, reducing the filter device's energy consumption and preventing the oscillation of the cleaning brush 60 from affecting airflow during filter 100 operation, ensuring sufficient airflow filtered by the filter 100.

[0037] like Figures 8 to 11 As shown, a motor support mechanism 9 is provided on the filter housing 1, and the motor body is connected to the motor support mechanism 9 by a first fastener; and / or the cleaning brush 60 is connected to the motor shaft by a second fastener. The first end of the cleaning brush 60 is provided with a shaft hole 61 and a fixing hole 62 that are perpendicular to each other and communicate with each other. The shaft hole 61 is used to fit on the motor shaft, and the second fastener is fixedly connected to the fixing hole 62 and pressed against the motor shaft.

[0038] The filter device of this utility model installs the cleaning motor 51 by setting a motor support mechanism 9, which ensures the stable operation of the cleaning motor 51 and makes the cleaning action of the cleaning brush 60 more precise. It ensures the efficient swing of the cleaning brush 60, which can thoroughly remove impurities on the inlet filter screen 3, extend the service life of the filter device, and maintain the reliable operation of the filter 100 even in harsh environments, thus meeting the air purification and oxygen production needs of the air conditioner.

[0039] The filtration device of this utility model provides a rotating shaft hole 61 and a fixing hole 62 at the first end of the cleaning brush 60, and utilizes a second fastener. The rotating shaft hole 61 allows the cleaning brush 60 to rotate smoothly under the drive of the motor shaft, while the fixing hole 62 cooperates with the second fastener to prevent the cleaning brush 60 from loosening and falling off during the cleaning process. This achieves a stable connection between the cleaning brush 60 and the motor shaft, and also ensures the cleaning brush 60's ability to swing efficiently under the drive of the cleaning motor 51 for cleaning. This guarantees the continuity and effectiveness of the cleaning operation, simplifies the assembly process of the cleaning brush 60, improves the maintenance efficiency of the cleaning brush 60, and enhances its stability and durability in complex working environments.

[0040] Specifically, the cleaning brush 60 includes a main brush body 63 and a connecting end cap 64. The connecting end cap 64 is located at the first end of the main brush body 63. The shaft hole 61 and the fixing hole 62 are both located on the connecting end cap 64. The main brush body 63 is parallel to the inlet filter screen 3, and the connecting end cap 64 is parallel to the motor shaft. The motor shaft is parallel to the extension direction of the filter housing 1.

[0041] like Figures 14 to 22 As shown, the cleaning component 6 includes a cleaning brush 60, the length of which is greater than or equal to the maximum size of the inlet filter screen 3, and the cleaning brush 60 is parallel to the inlet filter screen 3; the cleaning drive unit 5 includes a drive fan blade 52 and a connecting shaft 53, the drive fan blade 52 is connected to the middle of the cleaning brush via the connecting shaft 53 to drive the cleaning brush to rotate; wherein, some blades of the drive fan blade 52 are located inside the outdoor fan mounting cavity 540 of the outdoor unit 500 of the air conditioner, so as to rotate under the influence of the airflow drawn into the outdoor fan mounting cavity 540.

[0042] The filtration device of this utility model utilizes the airflow generated by the rotation of the external fan 700 within the external fan mounting cavity 540 to drive the rotation of the fan blade 52. The fan blade 52 then drives the cleaning brush 60 to rotate via the connecting shaft 53, thereby achieving automatic cleaning of the inlet filter screen 3. This eliminates the need for energy-consuming drive components such as motors, reducing the energy consumption of the cleaner 200 and improving its adaptability and automation level. At the same time, the cleaning effect of the cleaner 200 is matched with the airflow intensity, ensuring the optimal performance of the filter 100 under various operating conditions.

[0043] like Figures 20 to 22 As shown, the rotation axis of the drive fan blade 52 is collinear with the axis of the connecting shaft 53, and the axis of the connecting shaft 53 is perpendicular to the cleaning brush 60; and / or the filter device includes a shaft support 10, which is disposed on the mounting base surface of the filter 100, and the connecting shaft 53 is rotatably mounted on the shaft support 10.

[0044] In the filtration device of this utility model, the rotation axis of the drive fan 52 is collinear with the axis of the connecting shaft 53, and the axis of the connecting shaft 53 is perpendicular to the cleaning brush 60. The power generated when the drive fan 52 rotates is fully utilized to effectively drive the cleaning brush 60 to rotate. Moreover, the cleaning action of the cleaning brush 60 can cover the entire area of ​​the inlet filter screen 3, ensuring the comprehensiveness and depth of cleaning. Especially when the inlet filter screen 3 is tilted, it is more conducive to the removal and sliding of dust and impurities, greatly improving cleaning efficiency and cleaning quality.

[0045] In the filter device of this utility model, the connecting shaft 53 is installed by setting a shaft support seat 10 and a bearing 4 inside the shaft support seat 10, so as to reduce the friction when the connecting shaft 53 rotates, thereby achieving support for the connecting shaft 53 and stable rotation of the connecting shaft 53, ensuring that the cleaning brush 60 can operate smoothly and efficiently under the drive of the drive fan blade 52 and the connecting shaft 53.

[0046] Specifically, two snap rings 54 are spaced apart on the outer circumferential surface of the connecting shaft 53, and the bearing 4 is installed between the two snap rings 54. The outer circumferential surface of the bearing 4 is provided with a groove 41. The shaft support 10 includes a base 101 and a sleeve 102 disposed on the base 101. The base 101 is connected to the base surface to be installed, and the sleeve 102 is installed in the groove 41 to limit the axial movement between the shaft support 10 and the connecting shaft 53.

[0047] like Figure 13 As shown, this utility model provides an oxygen generating device, which is installed in the outdoor unit 500 of an air conditioner. The oxygen generating device includes: the above-mentioned filter device; an air compressor 300, the inlet of which is connected to the filter outlet of the filter housing 1 of the filter device; and an oxygen generating device 400, the inlet of which is connected to the outlet of the air compressor 300.

[0048] This utility model's oxygen-generating equipment integrates three core components—a filter device, an air compressor 300, and an oxygen generator 400—within the outdoor unit 500 of an air conditioner. Utilizing the self-cleaning function of the filter device, it ensures the quality of the air entering the air compressor 300 and the oxygen generator 400, thereby improving oxygen generation efficiency and the long-term stability of the equipment. It solves the problem of long and tortuous connecting pipes caused by the oxygen generator being located in the outdoor unit and the filter device in the indoor unit, resulting in multiple air circulations between the indoor and outdoor units, especially during hot or cold seasons, requiring additional energy to maintain the air temperature within the suitable oxygen-generating range. This reduces the energy consumption and size of the oxygen-generating equipment.

[0049] like Figure 13 and Figure 14 As shown, this utility model provides an outdoor air conditioning unit, including: an outdoor unit housing 510, a support plate 520 disposed inside the outdoor unit housing 510 to divide the outdoor unit housing 510 into an oxygen generating installation cavity 530 and an external fan installation cavity 540, and a connecting hole on the support plate 520 for connecting the oxygen generating installation cavity 530 and the external fan installation cavity 540; and the aforementioned oxygen generating device, which is disposed in the oxygen generating installation cavity 530 and connected to the support plate 520.

[0050] This achieves efficient separation and integration of functional areas of the outdoor unit of the air conditioner. The connecting holes on the support plate 520 not only ensure airflow between the oxygen generator installation cavity 530 and the outdoor fan installation cavity 540, but also effectively control the direction and speed of airflow, thereby optimizing the synergistic efficiency of oxygen generation and air circulation. Fixing the oxygen generator inside the oxygen generator installation cavity and directly connecting it to the support plate not only simplifies the installation and maintenance process of the oxygen generator, but also reduces the impact of noise generated during oxygen generation on the user's environment through physical isolation. This not only improves the oxygen generation performance and air filtration quality of the outdoor unit of the air conditioner, but also significantly enhances the overall stability and operating efficiency of the air conditioner.

[0051] The support plate 520 is made of high-strength materials or has a high-strength structure, ensuring the stability and durability of the outdoor air conditioning unit 500. It can withstand the weight of the oxygen generator and other external forces, preventing deformation or damage to the outdoor air conditioning unit 500 during long-term operation, thus ensuring the continuous, stable and efficient operation of the oxygen generator. The oxygen generator installation cavity 530 is located above the outdoor fan installation cavity 540, making it easier to maintain and repair the oxygen generator, simplifying the maintenance process and reducing maintenance costs. The connecting holes on the support plate 520 also allow dust and other impurities falling from the inlet filter screen 3 to pass through and leave the oxygen generator installation cavity 530 and the outdoor air conditioning unit 500, ensuring the cleanliness of the oxygen generator installation cavity 530.

[0052] Specifically, when the cleaning drive unit 5 includes a drive fan blade 52 and a connecting shaft 53, the support plate 520 is provided with a clearance hole 521 for avoiding the blades of the drive fan blade 52, so that some blades of the drive fan blade 52 can extend from the oxygen generating installation cavity 530 into the external fan installation cavity 540.

[0053] like Figure 23 As shown, this utility model provides an air conditioner including the aforementioned outdoor unit 500. This avoids the problem of air circulating multiple times between the indoor and outdoor units during the oxygen production process in an outdoor oxygen generator combined with indoor filtration scheme. This is especially problematic during hot or cold seasons, where additional energy is needed to maintain the air temperature within the duct within a suitable oxygen production range, thus reducing the air conditioner's energy consumption.

[0054] The air conditioner of this utility model also includes an indoor unit 600 connected to the outdoor unit 500 via pipes and wires. The outdoor unit 500 also has an outdoor fan 700, a compressor, an outdoor heat exchanger and other components installed in the outdoor fan mounting cavity 540.

[0055] like Figure 14 As shown, direction D is the direction of at least part of the airflow at the outdoor fan mounting cavity 540 of the outdoor unit 500 of the air conditioner.

[0056] Specifically, the filtration device of this utility model includes at least the following two embodiments.

[0057] Example 1

[0058] like Figures 1 to 13 As shown, this utility model provides a filtration device installed inside an outdoor unit 500 of an air conditioner. The filtration device includes: a filter 100, including a filter housing 1 and an inlet filter screen 3 disposed at the filter inlet of the filter housing 1; and a cleaner 200, including a cleaning drive unit 5 and a cleaning component 6. The cleaning component 6 is movably disposed outside the inlet filter screen 3 and in contact with the inlet filter screen 3. The cleaning drive unit 5 is drivenly connected to the cleaning component 6 to drive the cleaning component 6 to move and clean the inlet filter screen 3.

[0059] like Figures 1 to 13 As shown, the filter 100 further includes: a filter element 2, the filter housing 1 including a receiving cavity 11 and a filter inlet and a filter outlet respectively communicating with the receiving cavity 11, the filter element 2 being disposed within the receiving cavity 11; a conveying pipe 7, the conveying pipe 7 being disposed at the filter outlet of the filter housing 1; a filter support 8, the filter support 8 being disposed on the mounting base surface of the filter 100 and connected to the filter housing 1 to support the filter housing 1; and a dust detection component, the dust detection component being located at the filter inlet and facing the inlet filter screen 3, for detecting the real-time light intensity reflected by the dust on the inlet filter screen 3, so as to determine whether the inlet filter screen 3 needs to be cleaned based on the real-time light intensity.

[0060] like Figure 8 As shown, filter inlet and filter outlet are respectively provided at opposite ends of the extension direction of filter housing 1. The extension direction of filter housing 1 is parallel to the mounting base of filter 100. The angle between inlet filter screen 3 and the extension direction of filter housing 1 is acute angle β, and the distance between inlet filter screen 3 and filter outlet gradually increases in the direction away from the mounting base.

[0061] like Figures 1 to 13 As shown, the cleaning component 6 is a cleaning brush 60. The length of the brushing area of ​​the cleaning brush 60 is greater than or equal to the maximum size of the inlet filter screen 3. The cleaning brush 60 is parallel to the inlet filter screen 3. The cleaning drive unit 5 includes a cleaning motor 51. The motor body of the cleaning motor 51 is disposed on the outer peripheral surface of the filter housing 1. The motor shaft of the cleaning motor 51 is connected to the first end of the cleaning brush 60 to drive the cleaning brush 60 to swing around the axis of the motor shaft so as to contact or avoid the inlet filter screen 3.

[0062] like Figures 8 to 11As shown, a motor support mechanism 9 is provided on the filter housing 1, and the motor body is connected to the motor support mechanism 9 by a first fastener; and / or the cleaning brush 60 is connected to the motor shaft by a second fastener. The first end of the cleaning brush 60 is provided with a shaft hole 61 and a fixing hole 62 that are perpendicular to each other and communicate with each other. The shaft hole 61 is used to fit on the motor shaft, and the second fastener is fixedly connected to the fixing hole 62 and pressed against the motor shaft.

[0063] Specifically, the cleaning brush 60 includes a main brush body 63 and a connecting end cap 64. The connecting end cap 64 is located at the first end of the main brush body 63. The shaft hole 61 and the fixing hole 62 are both located on the connecting end cap 64. The main brush body 63 is parallel to the inlet filter screen 3, and the connecting end cap 64 is parallel to the motor shaft. The motor shaft is parallel to the extension direction of the filter housing 1.

[0064] The control flow of the filtration device in this embodiment is as follows: When the air conditioner's oxygen production function is activated, the air compressor 300 of the oxygen production device starts. Outdoor air passes through the filter, the air compressor 300, and the molecular sieve of the oxygen production device 400. After being filtered in the molecular sieve, the enriched oxygen enters the storage tank and can be introduced into the room through the gas pipeline, while nitrogen will be discharged to the outside after being silenced.

[0065] When the oxygen generator stops working, the cleaner 200 can be controlled to start its self-cleaning function; When the oxygen generator is turned on, the cleaner 200 can be controlled to start its self-cleaning function first, and the oxygen generator will start working only after the cleaner 200 has finished its self-cleaning function. The frequency and duration of the self-cleaning operation are related to the degree of dirt and clogging of the inlet filter 3; the specific operating logic is as follows: When △T < M and N < H, there is no need to control the cleaner 200 to start the self-cleaning operation; When △T≥M and / or N≥H, the cleaner 200 starts the self-cleaning operation. After the self-cleaning operation is completed, N automatically returns to zero. in, N – The cumulative operating time of the oxygen generator. N is automatically reset to zero after the self-cleaning process is completed. H – The set operating time of the oxygen generator; M—Preset light intensity difference; T1—The real-time light intensity reflected by the dust on the inlet filter 3 when the oxygen generator is first turned on; T—The real-time light intensity reflected by the dust on the inlet filter 3, detected each time the oxygen generator is turned on; △T——The difference between the real-time light intensity reflected by the dust on the inlet filter 3 detected each time the oxygen generator is turned on and the real-time light intensity reflected by the dust on the inlet filter 3 detected when the oxygen generator is turned on for the first time, T-T1.

[0066] In this way, by detecting the dirt and clogging of the inlet filter 3 through the dust detection component and combining it with the cumulative operating time of the oxygen generator, it can intelligently determine whether the cleaner 200 needs to start the self-cleaning work, so that the inlet filter 3 is always in a good clean state, thereby ensuring the working efficiency and oxygen quality of the oxygen generator. This not only improves the efficiency of the air conditioner but also reduces maintenance costs, providing users with a healthier, more comfortable, and energy-saving user experience.

[0067] Example 2

[0068] like Figures 14 to 23 As shown, this utility model provides a filtration device installed inside an outdoor unit 500 of an air conditioner. The filtration device includes: a filter 100, including a filter housing 1 and an inlet filter screen 3 disposed at the filter inlet of the filter housing 1; and a cleaner 200, including a cleaning drive unit 5 and a cleaning component 6. The cleaning component 6 is movably disposed outside the inlet filter screen 3 and in contact with the inlet filter screen 3. The cleaning drive unit 5 is drivenly connected to the cleaning component 6 to drive the cleaning component 6 to move and clean the inlet filter screen 3.

[0069] like Figures 14 to 23 As shown, the filter 100 further includes: a filter element 2, the filter housing 1 including a receiving cavity 11 and a filter inlet and a filter outlet respectively communicating with the receiving cavity 11, the filter element 2 being disposed within the receiving cavity 11; and / or a delivery pipe 7, the delivery pipe 7 being disposed at the filter outlet of the filter housing 1; a filter support 8, the filter support 8 being disposed on the mounting base surface of the filter 100 and connected to the filter housing 1 to support the filter housing 1; and an air flow detection component, the air flow detection component being disposed at the filter inlet and located inside the inlet filter screen 3, for detecting the real-time flow rate of the air flowing into the filter inlet, so as to determine whether the inlet filter screen 3 needs cleaning based on the real-time flow rate.

[0070] like Figure 19 As shown, filter inlet and filter outlet are respectively provided at opposite ends of the extension direction of filter housing 1. The extension direction of filter housing 1 is parallel to the mounting base of filter 100. The angle between inlet filter screen 3 and the extension direction of filter housing 1 is acute angle β, and the distance between inlet filter screen 3 and filter outlet gradually increases in the direction away from the mounting base.

[0071] like Figures 14 to 23As shown, the cleaning component 6 includes a cleaning brush 60, the length of which is greater than or equal to the maximum size of the inlet filter screen 3, and the cleaning brush 60 is parallel to the inlet filter screen 3; the cleaning drive unit 5 includes a drive fan blade 52 and a connecting shaft 53, the drive fan blade 52 is connected to the middle of the cleaning brush via the connecting shaft 53 to drive the cleaning brush to rotate around the axis of the connecting shaft 53; wherein, some blades of the drive fan blade 52 are located in the outdoor fan mounting cavity 540 of the outdoor unit 500 of the air conditioner, so as to rotate under the influence of the airflow drawn into the outdoor fan mounting cavity 540.

[0072] like Figures 17 to 22 As shown, the rotation axis of the drive fan blade 52 is collinear with the axis of the connecting shaft 53, and the axis of the connecting shaft 53 is perpendicular to the cleaning brush 60; the filter device includes a shaft support 10, which is set on the mounting base of the filter 100, and the connecting shaft 53 is rotatably mounted on the shaft support 10.

[0073] Specifically, two snap rings 54 are spaced apart on the outer circumferential surface of the connecting shaft 53, and the bearing 4 is installed between the two snap rings 54. The outer circumferential surface of the bearing 4 is provided with a groove 41. The shaft support 10 includes a base and a sleeve disposed on the base. The base is connected to the base surface to be installed, and the sleeve is installed in the groove 41 to limit the axial movement between the shaft support 10 and the connecting shaft 53.

[0074] The control flow of the filtration device in this embodiment two is as follows: When the air conditioner's oxygen production function is activated, the air compressor 300 of the oxygen production device starts. Outdoor air passes through the filter, the air compressor 300, and the molecular sieve of the oxygen production device 400. After being filtered in the molecular sieve, the enriched oxygen enters the storage tank and can be introduced into the room through the gas pipeline, while nitrogen will be discharged to the outside after being silenced.

[0075] The real-time airflow rate detected by the airflow detection component is Q, and the air conditioner's control system has a preset first threshold Q. 设1 Second preset threshold Q 设2 Q 设1 <Q 设2 The actual oxygen content indoors is Y, and the oxygen content set by the user is Y. 设 The external fan has a speed of 700 rpm. 外 ; When the air volume Q < Q 设1 Y < Y设 If the air conditioner indoor unit 600 fails to increase its oxygen output, it indicates that the inlet filter 3 is severely clogged. Therefore, it's necessary to increase the airflow speed at the inlet filter 3, which requires increasing the outdoor fan speed 700 to V. 外1 ; When Q 设1 ≤Q≤Q 设2 Y < Y 设 If the air conditioner indoor unit 600's oxygen output has not yet reached the set value, it indicates that the inlet filter 3 is severely clogged. Therefore, it's necessary to increase the airflow speed at the inlet filter 3, and thus increase the outdoor fan speed to V. 外2 ; When Q > Q 设2 Y < Y 设 This indicates that although the oxygen output of the indoor unit 600 has not yet reached the set value, the inlet filter 3 is not clogged. At this time, the outdoor fan 700 is set to speed V. 外3 Simply run it; When Q < Q 设1 Y > Y 设 This indicates that the oxygen output of the indoor unit 600 has reached the oxygen content Y set by the user. 设 However, at this point, the inlet filter 3 is already severely clogged. If the inlet filter 3 is not cleaned quickly, it will still affect subsequent use. Therefore, it is necessary to increase the speed of the external fan from 700 to V. 外4 ; Q 设1 ≤Q≤Q 设2 Y > Y 设 This indicates that the oxygen output of the indoor unit 600 has reached the oxygen content Y set by the user. 设 However, the inlet filter 3 is severely clogged. If it is not cleaned more quickly, it will still affect subsequent use. Therefore, the speed of the external fan needs to be increased from 700 to V. 外5 ; When Q > Q 设2 Y > Y 设 This indicates that the oxygen output of the indoor unit 600 has reached the oxygen content Y set by the user. 设 Furthermore, the inlet filter 3 is not clogged to a good degree. At this time, the external fan 700 is set to speed V. 外6 Simply run it; Among them, V 外1 >V 外2 >V 外3 >V 外4 >V 外5 >V 外6 .

[0076] In this way, by detecting the dirt and clogging of the inlet filter 3 through the air flow detection component and combining it with the operating time of the oxygen generator, it can intelligently determine whether the cleaner 200 needs to start the self-cleaning work, so that the inlet filter 3 is always in a good clean state, thereby ensuring the working efficiency and oxygen quality of the oxygen generator. This not only improves the utilization efficiency of the oxygen generator air conditioner, but also reduces maintenance costs, providing users with a healthier, more comfortable and energy-saving user experience.

[0077] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: The filtration device of this utility model is installed inside the outdoor unit 500 of an air conditioner. The filtration device includes: a filter 100, including a filter housing 1 and an inlet filter screen 3 disposed at the filter inlet of the filter housing 1; and a cleaner 200, including a cleaning drive unit 5 and a cleaning component 6. The cleaning component 6 is movably disposed outside the inlet filter screen 3 and in contact with the inlet filter screen 3. The cleaning drive unit 5 is drivenly connected to the cleaning component 6 to drive the cleaning component 6 to move in order to clean the inlet filter screen 3. In this way, by setting the filter and oxygen generator together inside the outdoor unit 500 of the air conditioner, and installing a cleaner 200 at the filter 100, the dust and impurities on the inlet filter screen 3 can be removed by the driving action of the cleaning drive unit 5 on the cleaning component 6, thereby maintaining the smooth airflow in the filter 100, realizing the continuous and efficient operation of the filter 100, reducing the maintenance frequency of the filter 100, reducing the energy consumption of the filter 100, and improving the filtration efficiency of the filter 100. This ensures that the quality of the filtered air received by the oxygen generator is not affected when the oxygen generator is started, and solves the problem that the setting of the oxygen generator and filter in the oxygen-generating air conditioner in the prior art cannot simultaneously meet the requirements of simple pipeline layout and easy cleaning.

[0078] 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.

[0079] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0080] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0081] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0082] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

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

Claims

1. A filtration device, characterized in that, The filter device, installed inside the outdoor unit (500) of the air conditioner, includes: The filter (100) includes a filter housing (1) and an inlet filter screen (3) disposed at the filter inlet of the filter housing (1). The cleaner (200) includes a cleaning drive unit (5) and a cleaning component (6), wherein the cleaning component (6) is movably disposed outside the inlet filter (3) and in contact with the inlet filter (3), and the cleaning drive unit (5) is driven to the cleaning component (6) to drive the cleaning component (6) to move in order to clean the inlet filter (3).

2. The filtration device according to claim 1, characterized in that, The filter (100) further includes: Filter element (2), the filter housing (1) includes a receiving cavity (11) and a filter inlet and a filter outlet respectively communicating with the receiving cavity (11), the filter element (2) is disposed within the receiving cavity (11); and / or The conveying pipe (7) is disposed at the filter outlet of the filter housing (1); and / or A filter support (8) is disposed on the mounting surface of the filter (100) and connected to the filter housing (1) to support the filter housing (1); and / or An airflow detection component is disposed at the filter inlet and inside the inlet filter screen (3) to detect the real-time flow rate of air flowing into the filter inlet, so as to determine whether the inlet filter screen (3) needs cleaning based on the real-time flow rate; and / or A dust detection component is located at the filter inlet and facing the inlet filter screen (3) to detect the real-time light intensity reflected by the dust on the inlet filter screen (3) and to determine whether the inlet filter screen (3) needs to be cleaned based on the real-time light intensity.

3. The filter device of claim 1, wherein, The filter housing (1) has a filter inlet and a filter outlet at opposite ends of its extension direction. The extension direction of the filter housing (1) is parallel to the mounting surface of the filter (100). The angle between the inlet filter screen (3) and the extension direction of the filter housing (1) is an acute angle β. The distance between the inlet filter screen (3) and the filter outlet gradually increases in the direction away from the mounting surface.

4. The filtration device according to any one of claims 1 to 3, characterized in that, The cleaning component (6) includes a cleaning brush (60), the length of the brushing area of ​​the cleaning brush (60) is greater than or equal to the maximum size of the mesh surface of the inlet filter (3), and the cleaning brush (60) is parallel to the inlet filter (3); the cleaning drive unit (5) includes a cleaning motor (51), the motor body of the cleaning motor (51) is disposed on the outer peripheral surface of the filter housing (1), the motor shaft of the cleaning motor (51) is connected to the first end of the cleaning brush (60) to drive the cleaning brush (60) to swing around the axis of the motor shaft to contact or avoid the inlet filter (3).

5. The filtration device according to claim 4, characterized in that, A motor support mechanism (9) is provided on the filter housing (1), and the motor body is connected to the motor support mechanism (9) by a first fastener; and / or The cleaning brush (60) is connected to the motor shaft by a second fastener. The first end of the cleaning brush (60) is provided with a shaft hole (61) and a fixing hole (62) that are perpendicular to each other and connected. The shaft hole (61) is used to fit on the motor shaft. The second fastener is fixedly connected to the fixing hole (62) and presses against the motor shaft.

6. The filter device according to any one of claims 1 to 3, characterized in that The cleaning component (6) is a cleaning brush (60). The length of the brushing area of ​​the cleaning brush (60) is greater than or equal to the maximum size of the mesh surface of the inlet filter (3). The cleaning brush (60) is parallel to the inlet filter (3). The cleaning drive unit (5) includes a drive fan (52) and a connecting shaft (53). The drive fan (52) is connected to the middle of the cleaning brush (60) through the connecting shaft (53) to drive the cleaning brush (60) to rotate. Some blades of the drive fan (52) are located in the outdoor fan mounting cavity (540) of the outdoor unit (500) of the air conditioner to rotate under the influence of the airflow drawn into the outdoor fan mounting cavity (540).

7. The filtration device according to claim 6, characterized in that, The rotation axis of the drive fan (52) is collinear with the axis of the connecting shaft (53), and the axis of the connecting shaft (53) is perpendicular to the cleaning brush (60); and / or The filter device includes a shaft support (10), which is disposed on the mounting base surface of the filter (100), and the connecting shaft (53) is rotatably mounted on the shaft support (10).

8. An oxygen generating apparatus, characterized by comprising: The oxygen generating device is installed in the outdoor unit (500) of the air conditioner, and the oxygen generating device includes: The filtration device according to any one of claims 1 to 7; An air compressor (300) is provided, the inlet of which is connected to the filter outlet of the filter housing (1) of the filter device. An oxygen generator (400) is provided, the inlet of which is connected to the outlet of the air compressor (300).

9. An air conditioner outdoor unit characterized by comprising: include: An outdoor unit housing (510) is provided with a support plate (520) inside the outdoor unit housing (510) to divide the outdoor unit housing (510) into an oxygen generating installation cavity (530) and an external fan installation cavity (540). The support plate (520) is provided with a connecting hole for connecting the oxygen generating installation cavity (530) and the external fan installation cavity (540). The oxygen generating device according to claim 8 is disposed in the oxygen generating installation cavity (530) and connected to the support plate (520).

10. An air conditioner characterized by comprising: Includes the outdoor unit of the air conditioner as described in claim 9.

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