Air conditioner indoor unit, air conditioner and filter screen dust removal method

Abstract

The invention provides an air conditioner indoor unit, an air conditioner and a filter screen dust removal method. The air conditioner indoor unit comprises a machine shell, a first fan assembly, a second fan assembly, a filter structure and a dust removal assembly. The machine shell is provided with a front end part and a rear end part which are oppositely arranged in the horizontal direction, the rear end part is provided with an air inlet, the front end part is provided with a first air outlet and a second air outlet which are communicated with the air inlet and are vertically arranged at intervals, the first air outlet is used for blowing out cold air, and the second air outlet is used for blowing out hot air; the first fan assembly and the second fan assembly are arranged in the machine shell and located at the first air outlet and the second air outlet correspondingly. The filtering structure is arranged in the machine shell and located at the air inlet so as to be used for filtering air entering from the air inlet. The dust removal assembly is arranged in the machine shell and used for cleaning dust on the filtering structure. The problem that in the prior art, an air conditioner is low in energy consumption is solved.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioner filter cleaning, and in particular to an air conditioner indoor unit, an air conditioner and a filter dust removal method. Background Art

[0002] At present, wall-mounted air conditioners are the mainstream household appliances for regulating indoor temperature and humidity, and their application areas and usage frequency are constantly expanding. In the existing technology, the indoor unit of the air conditioner mainly adopts a single cross-flow fan blade and a single air outlet design, and achieves the comfortable effect of avoiding direct blowing on the human body during cooling and letting the hot air fall to the ground during heating by changing the air guide plate.

[0003] However, in environments with limited space, such as bedrooms, the air volume increase capability of this design is limited, resulting in reduced comfort of the air supply from the air conditioner. The inherent limitations of the duct design also hinder the further optimization of air conditioner performance and restrict its application in various life scenarios. In addition, existing wall-mounted air conditioners usually set the air inlet on the upper side of the indoor unit. This layout not only limits the design flexibility of the air duct, but also affects the ability of the air conditioner to achieve efficient and comprehensive air supply coverage, especially when the airflow from the outlet is re-inhaled into the air inlet, which will directly lead to a decrease in the energy consumption ratio and affect the energy efficiency performance of the air conditioner. Summary of the invention

[0004] The main purpose of the present invention is to provide an air conditioner indoor unit, an air conditioner and a filter dust removal method to solve the problem of low energy consumption of the air conditioner in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an air-conditioning indoor unit, comprising: a casing having a front end portion and a rear end portion relatively arranged in a horizontal direction, an air inlet being provided on the rear end portion, and a first air outlet and a second air outlet being respectively provided on the front end portion which are connected to the air inlet and arranged at an interval up and down, the first air outlet being used to blow out cold air, and the second air outlet being used to blow out hot air; a first fan assembly and a second fan assembly being respectively arranged in the casing and correspondingly located at the first air outlet and the second air outlet; a filtering structure being arranged in the casing and at the air inlet for filtering air entering from the air inlet; and a dust removal assembly being arranged in the casing for cleaning dust on the filtering structure.

[0006] Furthermore, the filtering structure includes: two filtering components, which are arranged in sequence in the casing along the vertical direction, each filtering component includes a filter screen, the filter screen is annular in structure and is rotatably arranged, so as to be used to filter the air entering the casing from the air inlet; the dust removal component is arranged between the two filter screens and contacts the two filter screens respectively, so that the two filter screens can clean the dust on the filter screens through the dust removal component during the rotation process.

[0007] Furthermore, each filter assembly also includes: a mounting part, which is rotatably arranged on one end of the filter screen close to the dust removal assembly; a gear part, which is rotatably arranged on one end of the filter screen away from the dust removal assembly, and the gear part and the mounting part are respectively wrapped around the filter screen, and a plurality of mating protrusions are provided on the inner wall of the filter screen along its extension direction and avoiding the filter holes on the filter screen. The gear part is meshed and connected with the plurality of mating protrusions on the filter screen so that the gear part drives the filter screen to rotate.

[0008] Furthermore, the mounting piece is provided with a plurality of mounting protrusions along its circumferential direction, and the plurality of mounting protrusions are respectively cooperated and connected with the recesses formed between two adjacent matching protrusions on the filter net; or, the mounting piece is provided with a plurality of mounting recesses along its circumferential direction, and the plurality of mounting recesses are respectively cooperated and connected with the plurality of matching protrusions.

[0009] Furthermore, the dust removal component includes: a brush component, which is respectively in contact with the two filter screens and is rotatably arranged; a dust collecting component, which is arranged below the brush component, and the dust collecting component has a accommodating space and a collecting port connected to the accommodating space, so that the dust on the filter screen cleaned by the brush component falls from the collecting port into the accommodating space.

[0010] Furthermore, the dust collecting component is provided with a plurality of fixing members at intervals at the collecting port along the extension direction thereof, and the brush component is rotatably contacted with the plurality of fixing members respectively, so as to clean the dust on the brush component.

[0011] Furthermore, a first air guide plate and a second air guide plate are rotatably provided on the casing corresponding to the first air outlet and the second air outlet respectively, so as to be used for opening or closing the first air outlet and the second air outlet respectively.

[0012] Furthermore, the air conditioner indoor unit also includes: a control system, which is connected to the filter structure and the dust removal component respectively, so as to control the filter structure and the dust removal component respectively to clean the dust thereon.

[0013] Furthermore, the control system includes: an air volume monitor, which is arranged on the side of the filter structure close to the air inlet, so as to detect the air volume between the air inlet and the filter structure; a weight sensor, which is arranged on the dust removal component, so as to detect the weight of the dust on the dust removal component; and a controller, which is respectively connected to the air volume monitor and the weight sensor signals, so as to control the cleaning of the dust on the filter structure and the dust removal component according to the data results of the air volume monitor and the weight sensor.

[0014] According to another aspect of the present invention, an air conditioner is provided, comprising the air conditioner indoor unit and air conditioner outdoor unit mentioned above.

[0015] According to another aspect of the present invention, a filter dust removal method is provided, which is applicable to the air conditioner mentioned above, and the filter dust removal method includes: setting a preset air volume threshold; obtaining a first real-time air volume value between the air inlet and the filter structure; comparing the first real-time air volume value with the preset air volume threshold to determine whether to clean the dust on the filter according to the comparison result; setting a preset weight threshold; obtaining the real-time weight value of the brush component of the dust removal component; comparing the real-time weight value with the preset weight threshold to determine whether to clean the dust on the brush component according to the comparison result.

[0016] Furthermore, whether to clean the dust on the filter is determined based on the comparison result, including: when the first real-time air volume value is less than the preset air volume threshold, the filter does not need to be cleaned; when the first real-time air volume value is greater than or equal to the preset air volume threshold, the filter needs to be cleaned, and whether the dust on the brush component needs to be cleaned is determined based on the comparison result between the real-time weight value and the preset weight threshold.

[0017] Furthermore, whether the dust on the brush component needs to be cleaned is judged based on the comparison result between the real-time weight value and the preset weight threshold, including: when the real-time weight value is greater than or equal to the preset weight threshold, the brush component is controlled to rotate and contact with multiple fixings on the dust collecting component respectively to clean the dust on the brush component; when the real-time weight value is less than the preset weight threshold, the filter is controlled to rotate in a first direction and contact with the brush component to clean the dust on the filter.

[0018] Further, after controlling the filter to rotate along the first direction and contact the brush component to clean the dust on the filter, it includes: obtaining a second real-time air volume value between the air inlet and the filter structure; comparing the second real-time air volume value with a preset air volume threshold to determine whether to clean the dust on the filter again based on the comparison result.

[0019] Furthermore, judging whether to clean the dust on the filter again is based on the comparison result, including: when the second real-time air volume value is greater than or equal to the preset air volume threshold, controlling the filter to rotate in the second direction and contact the brush component to clean the dust on the filter again; when the second real-time air volume value is less than the preset air volume threshold, controlling the first air guide plate to open to blow out cold air through the first air outlet, or controlling the second air guide plate to open to blow out hot air through the second air outlet, according to the indoor environment or user selection.

[0020] By applying the technical solution of the present invention, an air-conditioning indoor unit is provided, comprising a casing, a first fan assembly, a second fan assembly, a filtering structure and a dust removal assembly; the casing comprises a front end portion and a rear end portion relatively arranged in a horizontal direction, the rear end portion is provided with an air inlet, the front end portion is respectively provided with a first air outlet and a second air outlet which are connected to the air inlet and are arranged at an interval up and down, the first air outlet is used to blow out cold air, and the second air outlet is used to blow out hot air; the first fan assembly and the second fan assembly are respectively arranged in the casing and correspondingly located at the first air outlet and the second air outlet; the filtering structure is arranged in the casing and at the air inlet, so as to filter the air entering from the air inlet; the dust removal assembly is arranged in the casing, so as to clean dust on the filtering structure.

[0021] In this way, the air intake at the rear end improves the energy consumption ratio of the air conditioner, and solves the problem of low energy consumption of the air conditioner in the prior art. In addition, by setting the first and second air outlets spaced up and down, which are used to blow out cold air and hot air respectively, a larger air volume can be provided in an environment with limited space, such as a bedroom, thereby improving the air supply comfort and cooling / heating efficiency of the air conditioner. After the air conditioner is turned on, the function is realized according to the working mode; when cooling, the first air outlet located at the top blows air to achieve cooling without direct blowing; when heating, the second air outlet located at the bottom blows air to achieve rapid heating. At the same time, the upper and lower air outlets are switched in combination with the filtering structure and the dust removal component to achieve filtering of different air outlets during the upper and lower air outlets, thereby improving the user experience. In addition, the independent design of the first fan assembly and the second fan assembly makes the upper and lower air outlets more flexible. Compared with the limitations of the traditional single air outlet single fan, the performance of the air conditioner can be further optimized, so that it can be more widely used in various life scenarios, especially when the air outlet airflow is re-inhaled into the air inlet, it can effectively avoid the decline in the energy consumption ratio and improve the energy efficiency performance of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A side sectional view of an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0024] Figure 2 A side cross-sectional view of a heating mode provided by an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0025] Figure 3 A side sectional view of a cooling mode provided by an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0026] Figure 4A schematic structural diagram of a filter structure and a dust removal assembly provided in an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0027] Figure 5 A schematic structural diagram of a dust collecting component provided in an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0028] Figure 6 A schematic flow chart of an embodiment of a filter dust removal method according to the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. housing; 11. front end; 110. first air outlet; 111. second air outlet; 12. rear end; 120. air inlet; 13. first air guide plate; 14. second air guide plate;

[0031] 20. A first fan assembly; 21. A second fan assembly;

[0032] 30. Filter structure; 31. Filter assembly; 310. Filter screen; 3101. Matching convex part; 311. Mounting part; 312. Gear part;

[0033] 40. Dust removal component; 41. Brush component; 42. Dust collection component; 420. Accommodation space; 421. Collection port; 422. Fixing part. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] In order to solve the problem of low energy consumption of air conditioners in the prior art, the present invention provides an air conditioner indoor unit, an air conditioner and a filter screen dust removal method.

[0036] Please refer to Figures 1 to 5As shown, one aspect of the technical solution of the present invention provides an air-conditioning indoor unit, including a casing 10, a first fan assembly 20, a second fan assembly 21, a filtering structure 30 and a dust removal assembly 40; the casing 10 has a front end portion 11 and a rear end portion 12 arranged relatively to each other in a horizontal direction, an air inlet 120 is arranged on the rear end portion 12, and a first air outlet 110 and a second air outlet 111 which are connected to the air inlet 120 and arranged at an interval up and down are respectively provided on the front end portion 11, the first air outlet 110 is used to blow out cold air, and the second air outlet 111 is used to blow out hot air; the first fan assembly 20 and the second fan assembly 21 are respectively arranged in the casing 10 and are correspondingly located at the first air outlet 110 and the second air outlet 111; the filtering structure 30 is arranged in the casing 10 and at the air inlet 120, so as to filter the air entering from the air inlet 120; the dust removal assembly 40 is arranged in the casing 10, so as to clean the dust on the filtering structure 30.

[0037] One aspect of the technical solution of the present invention is to improve the energy consumption ratio of the air conditioner by taking in air through the rear end 12, thereby solving the problem of low energy consumption of the air conditioner in the prior art. In addition, by setting the first air outlet 110 and the second air outlet 111 spaced apart from each other, which are used to blow out cold air and hot air respectively, a larger air volume can be provided in an environment with limited space, such as a bedroom, thereby improving the air supply comfort and cooling / heating efficiency of the air conditioner. After the air conditioner is turned on, the function is realized according to the working mode; when cooling, the first air outlet 110 located at the top blows air to achieve cooling without direct blowing; when heating, the second air outlet 111 located at the bottom blows air to achieve rapid heating. At the same time, the upper and lower air outlets are switched in combination with the filter structure 30 and the dust removal assembly 40 to achieve filtering of different air outlets during the upper and lower air outlets, thereby improving the user experience. Furthermore, the independent design of the first fan assembly 20 and the second fan assembly 21 makes the upward and downward air outlet more flexible. Compared with the limitations of the traditional single-outlet single-fan, the performance of the air conditioner can be further optimized, making it more widely used in various life scenarios. In particular, when the airflow at the air outlet is re-inhaled into the air inlet 120, it can effectively avoid a decrease in the energy consumption ratio and improve the energy efficiency performance of the air conditioner.

[0038] like Figures 1 to 4As shown, the filter structure 30 includes two filter assemblies 31, which are arranged in sequence in the housing 10 along the vertical direction, and each filter assembly 31 includes a filter screen 310, which is annular and rotatably arranged to filter the air entering the housing 10 from the air inlet 120; the dust removal assembly 40 is arranged between the two filter screens 310 and contacts the two filter screens 310 respectively, so that the two filter screens 310 can clean the dust on the filter screens 310 through the dust removal assembly 40 during the rotation process. In this way, the ring-shaped structure and the rotatable design can reduce the resistance of air flow compared to the fixed flat filter screen 310, and at the same time, the dust accumulated on the filter screen 310 can be effectively removed by contacting and rotating with the dust removal assembly 40, so as to maintain a good air filtering effect, avoid the influence of the filter screen 310 on the air circulation of the air duct after the filter screen 310 is blocked, and keep the air duct unblocked and the air conditioner running efficiently. That is, through the combination of the filtering structure 30 and the dust removal assembly 40, not only the filtering and dust removal efficiency of the air conditioner is improved, but also the air circulation is optimized, the maintenance cycle is extended, and the reliability and operation efficiency of the equipment are enhanced.

[0039] Specifically, each filter assembly 31 further includes a mounting member 311 and a gear member 312; the mounting member 311 is rotatably disposed at one end of the filter 310 close to the dust removal assembly 40; the gear member 312 is rotatably disposed at one end of the filter 310 away from the dust removal assembly 40; the gear member 312 and the mounting member 311 are respectively disposed around the filter 310; a plurality of mating protrusions 3101 are provided on the inner wall of the filter 310 along its extension direction and avoiding the filter holes on the filter 310; the gear member 312 is meshedly connected with the plurality of mating protrusions 3101 on the filter 310, so that the gear member 312 drives the filter 310 to rotate. In this way, by meshing the gear member 312 with the mating protrusions 3101 on the filter 310, the rotation speed and direction of the filter 310 in contact with the dust removal assembly 40 can be accurately controlled to ensure stability and efficiency during the dust cleaning process. At the same time, the gear transmission has the characteristics of high precision and high efficiency, which makes the rotation of the filter 310 more accurate and optimizes the dust cleaning effect. In addition, the filter 310 can be rotated during the dust cleaning process to evenly distribute the dust load on the surface of the filter 310, avoiding local overload, thereby extending the service life of the filter 310, reducing the replacement frequency, and reducing the operating cost.

[0040] In this embodiment, each filter assembly 31 further includes a first driving component, and the rotating shaft of the gear component 312 is connected to the driving end of the first driving component, so that the first driving component drives the gear component 312 to rotate to drive the filter screen 310 to rotate. The first driving component is a stepping motor or the like.

[0041] Optionally, the mounting member 311 is provided with a plurality of mounting protrusions along its circumferential direction, and the plurality of mounting protrusions are respectively matched and connected with the recesses formed between two adjacent matching protrusions 3101 on the filter screen 310; or, the mounting member 311 is provided with a plurality of mounting recesses along its circumferential direction, and the plurality of mounting recesses are respectively matched and connected with the plurality of matching protrusions 3101. In this way, the connection stability between the mounting member 311 and the filter screen 310 can be enhanced, displacement or loosening due to vibration or airflow impact during operation can be avoided, and the stability and efficiency of the filter screen 310 during rotation can be ensured.

[0042] Specifically, the dust removal assembly 40 includes a brush component 41 and a dust collecting component 42; the brush component 41 is respectively in contact with the two filter screens 310 and is rotatably arranged; the dust collecting component 42 is arranged below the brush component 41, and the dust collecting component 42 has a receiving space 420 and a collecting port 421 connected to the receiving space 420, so that the dust on the filter screen 310 cleaned by the brush component 41 falls into the receiving space 420 from the collecting port 421. In this way, through the direct contact between the filter screen 310 and the brush component 41 and the rotatable design, the dust on the filter screen 310 can be effectively and evenly cleaned when the filter screen 310 is controlled to rotate, avoiding the problems of incomplete cleaning or poor local cleaning effect that may exist in the traditional cleaning method, and the dust cleaned from the filter screen 310 can be automatically collected by the dust collecting component 42, avoiding the dust from being scattered into the air again, keeping the indoor air clean, and also reducing the frequency and difficulty of dust cleaning for users.

[0043] In this embodiment, the brush component 41 and the filter 310 may also be controlled to rotate in opposite directions to enhance the dust removal effect of the brush component 41 on the filter 310 and improve the cleaning efficiency.

[0044] In this embodiment, the dust removal assembly 40 further includes a second driving component, and the rotating shaft of the brush component 41 is connected to the driving end of the second driving component so that the second driving component drives the brush component 41 to rotate. The second driving component is a stepping motor or the like.

[0045] like Figure 5As shown, the dust collecting component 42 is provided with a plurality of fixing members 422 at intervals at the collecting port 421 along its extension direction, and the brush component 41 can be rotatably contacted with the plurality of fixing members 422 respectively, so as to clean the dust on the brush component 41. Among them, the fixing member 422 can be a sawtooth structure or the like as long as it can realize the structure of cleaning the dust on it during the rotation of the brush component 41. In this way, when it is necessary to clean the dust on the filter screen 310 by the brush component 41, the brush component 41 can be controlled to rotate and contact with the plurality of fixing members 422 on the dust collecting component 42 first, so as to realize the effective removal of the dust on the brush component 41, realize the automatic cleaning of the brush component 41, reduce the problem of reduced cleaning effect due to dust accumulation on the brush component 41, and improve the overall cleaning efficiency of the dust removal component 40.

[0046] Specifically, the housing 10 is rotatably provided with a first air guide plate 13 and a second air guide plate 14 at positions corresponding to the first air outlet 110 and the second air outlet 111, respectively, to open or close the first air outlet 110 and the second air outlet 111. In this way, the air conditioner indoor unit can flexibly control the delivery of cold air and hot air according to the indoor temperature requirements or user preferences, thereby improving the comfort and accuracy of air delivery.

[0047] In this embodiment, the air conditioner indoor unit further includes a control system, which is connected to the filter structure 30 and the dust removal component 40 respectively, so as to control the filter structure 30 and the dust removal component 40 to clean the dust thereon respectively. In this way, the cleaning program can be automatically started according to a preset threshold value or algorithm by automatically detecting the status of the filter structure 30 and the dust removal component 40, such as the change of wind resistance of the filter 310 or the amount of dust in the dust collecting component 42, without manual intervention, thereby improving the automation and intelligence level of management and improving the reliability and stability of the air conditioning system.

[0048] Specifically, the control system includes an air volume monitor, a weight sensor and a controller; the air volume monitor is arranged on a side of the filter structure 30 close to the air inlet 120, so as to detect the air volume between the air inlet 120 and the filter structure 30; the weight sensor is arranged on the dust removal component 40, so as to detect the weight of the dust on the dust removal component 40; the controller is respectively connected with the air volume monitor and the weight sensor signals, so as to control the dust on the filter structure 30 and the dust removal component 40 to be cleaned according to the data results of the air volume monitor and the weight sensor. Through the above arrangement, the air volume monitor can detect the air volume between the air inlet 120 and the filter structure 30 in real time, and the weight sensor can monitor the weight of the dust on the dust removal component 40. The controller realizes intelligent control of the filter structure 30 and the dust removal component 40 according to the data of the two sensors, so as to ensure the efficient and stable operation of the indoor unit of the air conditioner. Through real-time monitoring and intelligent control, efficient and automated management of the filter structure 30 and the dust removal component 40 is achieved, which not only improves the operating efficiency and stability of the air conditioner, but also reduces the user's burden on air conditioner maintenance, enhances the convenience and comfort of using the air conditioner, and improves the user experience and comfort.

[0049] Another aspect of the technical solution of the present invention provides an air conditioner, including the air conditioner indoor unit and air conditioner outdoor unit mentioned above. In this way, through the design of the indoor unit with two independent air ducts and two air outlets, the air conditioner can provide cold air and hot air simultaneously or alternately, improving the flexibility and efficiency of regulating indoor temperature and humidity, and is particularly suitable for scenes requiring efficient and precise temperature control. And through the coordinated use of the filter structure 30 and the dust removal component 40 inside the casing 10, it is possible to maintain smooth air circulation and reduce the increase in energy consumption caused by dust blockage, thereby improving the overall energy efficiency of the air conditioner and reducing operating costs. And the built-in control system automatically determines and controls the cleaning of the filter structure 30 and the dust removal component 40 through the data of the air volume monitor and the weight sensor, reducing the maintenance workload, extending the service life of the air conditioner, and improving the user experience.

[0050] Please refer to Figure 6As shown, another aspect of the technical solution of the present invention provides a filter 310 dust removal method, which is applicable to the air conditioner mentioned above, and the filter 310 dust removal method includes: setting a preset air volume threshold; obtaining a first real-time air volume value between the air inlet 120 and the filter structure 30; comparing the first real-time air volume value with the preset air volume threshold, and judging whether to clean the dust on the filter 310 according to the comparison result; setting a preset weight threshold; obtaining the real-time weight value of the brush component 41 of the dust removal component 40; comparing the real-time weight value with the preset weight threshold, and judging whether to clean the dust on the brush component 41 according to the comparison result. In this way, by setting the preset air volume threshold and the preset weight threshold, and determining the cleaning time based on the actual air volume between the air inlet 120 and the filter structure 30 and the dust accumulation on the brush component 41, the extra energy consumption caused by excessive cleaning is avoided. At the same time, it also ensures that the cleaning is carried out in time when necessary to maintain the efficient operation and stability of the air conditioner.

[0051] Specifically, judging whether to clean the dust on the filter 310 according to the comparison result includes: when the first real-time air volume value is less than the preset air volume threshold, the filter 310 does not need to be cleaned; when the first real-time air volume value is greater than or equal to the preset air volume threshold, the filter 310 needs to be cleaned, and judging whether to clean the dust on the brush component 41 according to the comparison result between the real-time weight value and the preset weight threshold. In this way, by monitoring the change of air volume after filtering by the filter 310, the control system can start the cleaning program in time when the filter 310 begins to affect the air volume, avoiding the decrease of air supply efficiency caused by excessive blockage of the filter 310. When the real-time air volume value is lower than the preset air volume threshold, it indicates that the clean state of the filter 310 is sufficient to maintain normal air supply, and there is no need to clean it immediately. When the real-time air volume value is higher than the preset air volume threshold, it means that the filter structure 30 is dirty and blocked, which makes it difficult for the air entering from the air inlet 120 to be filtered by the filter structure 30 and enter the interior of the casing 10. Then the control system starts the filter 310 to rotate and clean it through the brush component 41, but before that, it is necessary to ensure the clean state of the brush component 41 to ensure the cleaning effect of the filter 310.

[0052] Specifically, judging whether it is necessary to clean the dust on the brush component 41 according to the comparison result between the real-time weight value and the preset weight threshold value includes: when the real-time weight value is greater than or equal to the preset weight threshold value, controlling the brush component 41 to rotate and contact with the multiple fixings 422 on the dust collecting component 42 respectively, so as to clean the dust on the brush component 41; when the real-time weight value is less than the preset weight threshold value, controlling the filter 310 to rotate in the first direction and contact with the brush component 41, so as to clean the dust on the filter 310. In this way, by setting the preset weight threshold value, the control system can accurately judge whether the cleaning state of the brush component 41 has reached the degree that needs to be cleaned, avoiding unnecessary cleaning operations, and improving the pertinence and efficiency of cleaning. When the real-time weight value of the brush component 41 reaches or exceeds the preset weight threshold value, the control system will automatically start its cleaning program, and the brush component 41 is rotated and contacted with the multiple fixings 422 on the dust collecting component 42 to efficiently remove the dust thereon, maintain the cleanliness and function of the brush component 41, and ensure that the filter 310 obtains an effective cleaning effect. When the real-time weight value of the brush component is lower than the preset weight threshold, it means that the cleaning state of the brush component 41 is considerable, and there is no need to clean the brush component 41. The filter 310 can be directly controlled to rotate to clean the dust on the filter 310.

[0053] Specifically, after controlling the filter 310 to rotate in the first direction and contact the brush component 41 to clean the dust on the filter 310, the following steps are included: obtaining a second real-time air volume value between the air inlet 120 and the filter structure 30; comparing the second real-time air volume value with a preset air volume threshold value, and judging whether to clean the dust on the filter 310 again according to the comparison result. In this way, by monitoring the air volume between the air inlet 120 and the filter structure 30 again, the effect after the first cleaning can be evaluated. If the air volume is still not lower than the preset air volume threshold value, it means that there may still be dust or impurities on the filter 310 that need to be cleaned, and the control system will automatically start to clean the filter 310 again to ensure the cleanliness of the filter 310.

[0054] Specifically, whether to clean the dust on the filter 310 again is determined based on the comparison result, including: when the second real-time air volume value is greater than or equal to the preset air volume threshold, controlling the filter 310 to rotate in the second direction and contact the brush component 41 to clean the dust on the filter 310 again; when the second real-time air volume value is less than the preset air volume threshold, according to the indoor environment or user selection, controlling the first air guide plate 13 to open to blow out cold air through the first air outlet 110, or controlling the second air guide plate 14 to open to blow out hot air through the second air outlet 111.

[0055] In this way, when the re-detected air volume value is still not lower than the preset air volume threshold, it means that the initial cleaning of the filter 310 may not be thorough enough or dust has accumulated again. The control system will start the re-cleaning process of the filter 310 to ensure that the filter 310 remains in a good cleaning state, thereby maintaining the efficient operation of the air-conditioning system. When the air volume value detected again is lower than the preset air volume threshold, it means that the filter 310 is in a good cleaning state, and the cooling or heating mode can be turned on according to the indoor environment or user selection: in the heating mode, the second air guide plate 14 is opened, the second fan assembly 21 is started, and the cold air is sucked from the upper and lower sides of the air conditioner through the air inlet 120 to the rear end 12 of the casing 10, and after heat exchange in the condenser, it is blown downward from the second air outlet 111 to achieve the function of hot air carpet coverage; in the cooling mode, the first air guide plate 13 is opened, the first fan assembly 20 is started, and the hot air is sucked from the upper and lower sides of the air conditioner through the air inlet 120 to the rear end 12 of the casing 10, and after heat exchange in the evaporator, it is blown upward from the first air outlet 110 to achieve the function of cold air not blowing directly. Through the re-cleaning mechanism of air volume feedback, the cleaning efficiency and number of times can be accurately controlled to avoid excessive cleaning or insufficient cleaning, thereby ensuring the optimal operating state of the air conditioning system. Furthermore, if the air volume value after the second cleaning is still higher than the preset air volume threshold, the above operation steps may be repeated until the air volume value after cleaning is lower than the preset air volume threshold.

[0056] In this embodiment, one of the first direction and the second direction is a clockwise direction, and the other of the first direction and the second direction is a counterclockwise direction.

[0057] In this application, the specific dust removal control steps are as follows:

[0058] When the indoor unit is turned on, the filter 310 is detected to see if the air volume value exceeds the preset air volume threshold. If not, the filter 310 is relatively clean and does not need to be moved, and the indoor unit starts and runs normally. If it exceeds, the filter 310 is further detected to see if the weight of the brush component 41 exceeds the preset weight threshold. If it exceeds, the filter 310 does not operate, and the brush component 41 is controlled to operate so as to self-clean the brush component 41 through the multiple fixings 422 on the dust collecting component 42. If not, the filter 310 is controlled to rotate in the first direction so as to clean the filter 310 through the brush component 41. After that, it is checked again whether the dirtiness and blockage (air volume value) of the cleaned filter 310 exceeds the preset air volume threshold. If not, the indoor unit can start the cooling or heating mode according to the indoor environment or user selection: wherein, in the heating mode, the second air guide plate 14 is opened, the second fan assembly 21 is started, and the cold air is sucked from the upper and lower sides of the air conditioner through the air inlet 120 to the rear end 12 of the casing 10, and after heat exchange in the condenser, it is blown downward from the second air outlet 111 to achieve the function of hot air carpet coverage; in the cooling mode, the first air guide plate 13 is opened, the first fan assembly 20 is started, and the hot air is sucked from the upper and lower sides of the air conditioner through the air inlet 120 to the rear end 12 of the casing 10, and after heat exchange in the evaporator, it is blown upward from the first air outlet 110 to achieve the function of cold air not blowing directly. If it exceeds, the filter 310 continues to be controlled to rotate in the second direction to perform secondary cleaning on the filter 310 through the brush component 41 until the air volume value after cleaning is lower than the preset air volume threshold (during which the filter 310 switches counterclockwise-clockwise).

[0059] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0060] The air conditioner indoor unit includes a casing 10, a first fan assembly 20, a second fan assembly 21, a filtering structure 30 and a dust removal assembly 40; the casing 10 has a front end portion 11 and a rear end portion 12 arranged relatively to each other in a horizontal direction, an air inlet 120 is arranged on the rear end portion 12, and a first air outlet 110 and a second air outlet 111 which are connected to the air inlet 120 and are arranged at an interval up and down are respectively provided on the front end portion 11, the first air outlet 110 is used to blow out cold air, and the second air outlet 111 is used to blow out hot air; the first fan assembly 20 and the second fan assembly 21 are respectively arranged in the casing 10 and are correspondingly located at the first air outlet 110 and the second air outlet 111; the filtering structure 30 is arranged in the casing 10 and at the air inlet 120, so as to filter the air entering from the air inlet 120; the dust removal assembly 40 is arranged in the casing 10, so as to clean the dust on the filtering structure 30. In this way, the air intake through the rear end 12 improves the energy consumption ratio of the air conditioner, and solves the problem of low energy consumption of the air conditioner in the prior art. In addition, by setting the first air outlet 110 and the second air outlet 111 spaced apart from each other, which are used to blow out cold air and hot air respectively, a larger air volume can be provided in an environment with limited space, such as a bedroom, thereby improving the air supply comfort and cooling / heating efficiency of the air conditioner. After the air conditioner is turned on, the function is realized according to the working mode; when cooling, the first air outlet 110 located at the top blows air to achieve cooling without direct blowing; when heating, the second air outlet 111 located at the bottom blows air to achieve rapid heating. At the same time, the upper and lower air outlets are switched in combination with the filter structure 30 and the dust removal assembly 40 to achieve filtering of different air outlets during the upper and lower air outlets, thereby improving the user experience. Furthermore, the independent design of the first fan assembly 20 and the second fan assembly 21 makes the upward and downward air outlet more flexible. Compared with the limitations of the traditional single-outlet single-fan, the performance of the air conditioner can be further optimized, making it more widely used in various life scenarios. In particular, when the airflow at the air outlet is re-inhaled into the air inlet 120, it can effectively avoid a decrease in the energy consumption ratio and improve the energy efficiency performance of the air conditioner.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0063] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: The housing (10) comprises a front end portion (11) and a rear end portion (12) which are arranged opposite to each other in a horizontal direction, the rear end portion (12) being provided with an air inlet (120), and the front end portion (11) being provided with a first air outlet (110) and a second air outlet (111) which are connected to the air inlet (120) and are arranged at an interval up and down, respectively, the first air outlet (110) being used to blow out cold air, and the second air outlet (111) being used to blow out hot air; A first fan assembly (20) and a second fan assembly (21), respectively disposed in the housing (10) and correspondingly located at the first air outlet (110) and the second air outlet (111); A filtering structure (30) is arranged in the housing (10) and located at the air inlet (120) to filter the air entering from the air inlet (120); A dust removal component (40) is arranged in the housing (10) and is used to clean dust on the filter structure (30).

2. The air conditioner indoor unit according to claim 1, characterized in that: The filtering structure (30) comprises: Two filter assemblies (31) are arranged in sequence in the housing (10) along the vertical direction, and each of the filter assemblies (31) comprises a filter screen (310). The filter screen (310) is annular in structure and is rotatably arranged, so as to filter the air entering the housing (10) from the air inlet (120); the dust removal assembly (40) is arranged between the two filter screens (310) and is in contact with the two filter screens (310) respectively, so that the two filter screens (310) can clean the dust on the filter screens (310) through the dust removal assembly (40) during the rotation process.

3. The air conditioner indoor unit according to claim 2, characterized in that: Each of the filter components (31) further comprises: A mounting member (311) rotatably disposed on one end of the filter screen (310) close to the dust removal assembly (40); A gear member (312) is rotatably arranged at one end of the filter (310) away from the dust removal assembly (40); the gear member (312) and the mounting member (311) are respectively arranged around the filter (310); a plurality of mating protrusions (3101) are arranged on the inner wall of the filter (310) along its extension direction and at intervals to avoid the filter holes on the filter (310); the gear member (312) is meshedly connected with the plurality of mating protrusions (3101) on the filter (310) so that the gear member (312) drives the filter (310) to rotate.

4. The air conditioner indoor unit according to claim 3, characterized in that: The mounting member (311) is provided with a plurality of mounting protrusions along its circumferential direction, and the plurality of mounting protrusions are respectively matched and connected with the recesses formed between two adjacent matching protrusions (3101) on the filter screen (310); or, The mounting member (311) is provided with a plurality of mounting recesses along its circumferential direction, and the plurality of mounting recesses are respectively matched and connected with the plurality of matching protrusions (3101).

5. The air conditioner indoor unit according to claim 2, characterized in that: The dust removal assembly (40) comprises: A brush component (41) is respectively in contact with the two filter screens (310) and is rotatably arranged; A dust collecting component (42) is arranged below the brush component (41), and comprises a containing space (420) and a collecting port (421) connected to the containing space (420), so that dust on the filter screen (310) cleaned by the brush component (41) falls from the collecting port (421) into the containing space (420).

6. The air conditioner indoor unit according to claim 5, characterized in that: The dust collecting component (42) is provided with a plurality of fixing members (422) at intervals at the collecting port (421) along its extending direction, and the brush component (41) is rotatably in contact with the plurality of fixing members (422) respectively, so as to clean the dust on the brush component (41).

7. The air conditioner indoor unit according to claim 1, characterized in that: The housing (10) is rotatably provided with a first air guide plate (13) and a second air guide plate (14) corresponding to the first air outlet (110) and the second air outlet (111), respectively, so as to be used to open or close the first air outlet (110) and the second air outlet (111), respectively.

8. The air conditioner indoor unit according to claim 1, characterized in that: The air conditioner indoor unit also includes: A control system is connected to the filter structure (30) and the dust removal component (40) respectively, so as to control the filter structure (30) and the dust removal component (40) respectively to clean the dust thereon.

9. The air conditioner indoor unit according to claim 8, characterized in that: The control system comprises: an air volume monitor, arranged on a side of the filter structure (30) close to the air inlet (120), and used for detecting the air volume between the air inlet (120) and the filter structure (30); a weight sensor, arranged on the dust removal component (40) and used for detecting the weight of dust on the dust removal component (40); A controller is respectively connected to the air volume monitor and the weight sensor signals to control the cleaning of dust on the filter structure (30) and the dust removal component (40) according to the data results of the air volume monitor and the weight sensor.

10. An air conditioner, characterized in that: It comprises the air-conditioning indoor unit and the air-conditioning outdoor unit according to any one of claims 1 to 9.

11. A filter dust removal method, applicable to the air conditioner as claimed in claim 10, characterized in that: The filter screen dust removal method comprises: Set preset air volume thresholds; Acquiring a first real-time air volume value between the air inlet (120) and the filter structure (30); Comparing the first real-time air volume value with the preset air volume threshold value, and judging whether to clean the dust on the filter (310) according to the comparison result; Set preset weight thresholds; Obtaining a real-time weight value of a brush component (41) of a dust removal assembly (40); The real-time weight value is compared with the preset weight threshold value to determine whether to clean the dust on the brush component (41) based on the comparison result.

12. The filter screen dust removal method according to claim 11, characterized in that: The step of judging whether to clean the dust on the filter screen (310) according to the comparison result comprises: When the first real-time air volume value is less than the preset air volume threshold, the filter (310) does not need to be cleaned; When the first real-time air volume value is greater than or equal to the preset air volume threshold, the filter (310) needs to be cleaned, and based on the comparison result between the real-time weight value and the preset weight threshold, it is determined whether the dust on the brush component (41) needs to be cleaned.

13. The filter screen dust removal method according to claim 12, characterized in that: The step of judging whether it is necessary to clean the dust on the brush component (41) according to the comparison result between the real-time weight value and the preset weight threshold value comprises: When the real-time weight value is greater than or equal to the preset weight threshold, the brush component (41) is controlled to rotate and respectively contact with a plurality of fixing members (422) on the dust collecting component (42) to clean the dust on the brush component (41); When the real-time weight value is less than the preset weight threshold, the filter screen (310) is controlled to rotate in a first direction and contact the brush component (41) to clean dust on the filter screen (310).

14. The filter screen dust removal method according to claim 13, characterized in that: After controlling the filter screen (310) to rotate in a first direction to contact the brush component (41) to clean dust on the filter screen (310), the method further comprises: Acquiring a second real-time air volume value between the air inlet (120) and the filter structure (30); The second real-time air volume value is compared with the preset air volume threshold value to determine whether to clean the dust on the filter (310) again based on the comparison result.

15. The filter screen dust removal method according to claim 14, characterized in that: The step of judging whether to clean the dust on the filter screen (310) again according to the comparison result comprises: When the second real-time air volume value is greater than or equal to the preset air volume threshold, controlling the filter (310) to rotate in a second direction and contact the brush component (41) to clean the dust on the filter (310) again; When the second real-time air volume value is less than the preset air volume threshold, the first air guide plate (13) is controlled to open to blow out cold air through the first air outlet (110), or the second air guide plate (14) is controlled to open to blow out hot air through the second air outlet (111), according to the indoor environment or user selection.

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