Indoor unit of air conditioner

Abstract

The utility model relates to an indoor unit of an air conditioner, which belongs to the technical field of air conditioning equipment and comprises a filtering module and a cleaning module. Wherein the filtering module comprises a first rotating roller, a second rotating roller, a filter screen and a first driving part. The cleaning module comprises a cleaning brush, and a first reference line and a second reference line are defined by the second driving piece and the comb; at the moment when the bristles are in contact with the ends of the comb teeth, the length direction of the corresponding bristles is located on a first reference line; at the moment that the bristles are separated from the end parts of the comb teeth, the length direction of the corresponding bristles is positioned on a second reference line; at the moment that the bristles are in contact with the end parts of the comb teeth, the distance between the contact point of the comb teeth and the bristles and the root parts of the corresponding bristles is a; the included angle between the first reference line and the second reference line is alpha; the minimum included angle between the length direction of the comb teeth and the first reference line is beta; the radius of the brush shaft is r; the shortest distance between the end parts of the bristles and the axis of the brush shaft is y; and y = (a + r) * cos alpha + (a + r) * sin alpha / tan (beta-alpha) is satisfied.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning equipment, and more particularly to an indoor air conditioning unit. Background Technology

[0002] An air conditioner, or air conditioner, is a device that uses artificial means to regulate and control parameters such as temperature, humidity, and airflow within a building or structure. To meet real-life needs, some air conditioners have a fresh air function, which can bring outdoor air into the room. Air conditioners typically contain filters to filter and clean the air. Currently, with the implementation of dual-carbon policies and increased demands for a healthy lifestyle, the cleaning of air conditioner filters has become a pressing issue. If air conditioner filters are not cleaned regularly, they will accumulate a large amount of dust and bacteria. This not only affects the efficiency of the air conditioner and increases energy consumption, but may also negatively impact human health, such as causing respiratory diseases.

[0003] Therefore, existing technologies typically employ a cleaning module to clean the filter screen. This cleaning module includes a cleaning brush. The filter screen is wound onto a take-up roller, and a motor drives the take-up roller via a gear set to rotate the filter screen. The cleaning brush then contacts and cleans the filter screen.

[0004] In existing technologies, the cleaning module also includes a comb to clean the cleaning brush. However, the current comb has a poor cleaning effect on the cleaning brush, and when the contact area between the comb and the bristles is too large, the resulting resistance is too great, which leads to excessive torque required by the cleaning brush, causing the cleaning brush to fail to rotate. Utility Model Content

[0005] This utility model solves, to at least a certain extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide an air conditioner indoor unit that, by setting the angle and position relationship between the cleaning brush and the comb, ensures the overall cleaning effect of the cleaning brush and controls the number of bristles in contact between the comb and the cleaning brush, thereby controlling the contact area between the comb and the cleaning brush and ensuring that the resistance experienced by the cleaning brush is not excessive, thus ensuring that the cleaning brush can rotate stably. This solves the problems of poor cleaning effect and the inability of the cleaning brush to rotate in the prior art.

[0007] To achieve the above objectives, this utility model provides an indoor air conditioning unit, comprising:

[0008] The casing has an air conditioning inlet at its top;

[0009] An indoor heat exchanger is disposed inside the housing;

[0010] An indoor fan causes airflow to enter the housing through the air conditioner inlet, and after heat exchange via the indoor heat exchanger, it is introduced into the room.

[0011] The filtering module includes:

[0012] A first rotating roller is disposed inside the housing;

[0013] The second rotating roller is disposed inside the housing;

[0014] The filter screen is wound up at both ends by the first rotating roller and the second rotating roller, respectively.

[0015] A first driving member is used to drive the first rotating roller and / or the second rotating roller to rotate, so as to realize the rotation of the filter screen;

[0016] The cleaning module includes:

[0017] A cleaning brush for contacting the filter screen, the cleaning brush comprising a brush shaft and bristles disposed on the brush shaft;

[0018] A second drive component is used to rotate the cleaning brush.

[0019] A comb, used to contact a cleaning brush; the comb includes a plurality of spaced-apart teeth;

[0020] A first reference line and a second reference line are defined; at the instant the bristles contact the end of the comb teeth, the length direction of the bristles is located on the first reference line; at the instant the bristles detach from the end of the comb teeth, the length direction of the bristles is located on the second reference line.

[0021] At the instant the bristles contact the end of the comb teeth, the distance a from the point where the comb teeth contact the bristles to the root of the corresponding bristles is ;

[0022] The angle between the first reference line and the second reference line is α;

[0023] The minimum angle between the length direction of the comb teeth and the first reference line is β;

[0024] The radius of the brush shaft is r;

[0025] The shortest distance from the tip of the bristles to the axis of the brush shaft is y;

[0026] Satisfy, y=(a+r)*cosα+(a+r)*sinα / tan(β-α).

[0027] In this technical solution, the relative positions of the comb and the cleaning brush are set based on specific geometric relationships. This allows the comb to effectively remove dust from the bristles during the brush's rotation. Cleaning dust gradually from the bristle root to the tip ensures overall cleaning effectiveness, thereby improving the cleaning brush's ability to clean the filter. This maintains the filter's good filtration performance, extends its lifespan, reduces air conditioning energy consumption, and minimizes bacterial growth. Furthermore, this angle setting allows control over the number of bristles in contact between the comb and the cleaning brush, thus controlling the contact area and ensuring that the resistance experienced by the cleaning brush is not excessive, thereby ensuring stable brush rotation.

[0028] In some embodiments of this application, it is ensured that 90°>β>0°; a>1mm.

[0029] In the technical solution, ensuring 90°>β>0° guarantees that the comb can effectively contact the bristles to clean dust while preventing excessive interference between the comb and bristles, which could affect the normal rotation of the cleaning brush. a>1mm provides a sufficient safe distance between the comb and bristle contact points, preventing collisions or friction between the comb and components such as the brush shaft near the bristle roots during operation. This ensures stable operation of the cleaning module, reduces the risk of component wear and damage, and improves the reliability and durability of the entire cleaning system.

[0030] In some embodiments of this application, the length of the comb is greater than the length of the cleaning brush.

[0031] In the technical solution, the comb is longer than the cleaning brush, allowing it to clean the bristles across the entire length of the brush. This ensures that both the base and tip of the bristles are effectively reached, preventing situations where insufficient comb length results in some areas of the bristles remaining uncleaned. This further improves the cleaning effect of the cleaning brush, ensuring the cleanliness of the filter, maintaining good ventilation and heat exchange efficiency of the air conditioner, and enhancing indoor air quality.

[0032] In some embodiments of this application, the distance between two adjacent comb teeth is L1, which satisfies 1mm≤L1≤5mm.

[0033] In the technical solution, selecting an appropriate spacing within this range ensures that the comb teeth brush the bristles sufficiently multiple times to achieve a good cleaning effect, while avoiding excessive resistance to the bristles as they pass through the comb teeth due to excessively small spacing. A reasonable comb tooth spacing helps reduce the driving force required for the cleaning brush to rotate, reduces the torque requirements of the motor, lowers motor energy consumption, and extends motor lifespan, while also ensuring that the cleaning effect is not affected, thus achieving a balance between high efficiency and energy saving in the cleaning system.

[0034] In some embodiments of this application, the spacing between any two adjacent combs is the same.

[0035] The technical solution ensures that the bristles of the cleaning brush are evenly and consistently combed by the toothed comb during rotation. This helps avoid situations where some parts of the bristles are over-cleaned while others are under-cleaned due to uneven spacing of the toothed comb, guaranteeing that the entire bristle receives uniform cleaning in each rotation cycle. This results in a more stable and reliable cleaning effect on the filter, maintaining consistent filter performance, ensuring stable operation of the air conditioner, and providing users with a continuously pleasant indoor environment.

[0036] In some embodiments of this application, the width of the end of the comb teeth is L2, which satisfies 0.5mm≤L2≤2mm.

[0037] In this technical solution, such a width design ensures that the comb teeth have sufficient strength and rigidity to withstand the contact force with the bristles, while also preventing excessive compression or damage to the bristles due to excessive width. The appropriate end width helps the comb better groom the bristles, effectively removing dust while reducing damage to the bristles, extending the lifespan of the cleaning brush, and ensuring a long-term, stable cleaning effect for the cleaning system.

[0038] In some embodiments of this application, at the instant the bristles contact the end of the comb teeth, the distance from the point where the comb teeth contact the bristles to the end of the corresponding bristles is b.

[0039] The length of the comb teeth is L3, which satisfies L3>b+2mm.

[0040] The technical solution ensures that the comb teeth cover a sufficient area of ​​the brush bristles from root to tip along its length, effectively cleaning both dust near the root and dust at the tip during contact with the comb teeth. Especially for dust that easily adheres to and is difficult to remove from the bristle roots, the sufficiently long comb teeth can reach deep into the bristle roots for cleaning, preventing dust accumulation and further improving the cleaning effect of the brush. This ensures the cleaning efficiency of the filter, maintains good air conditioning performance and air quality.

[0041] In some embodiments of this application, the first rotating roller and the second rotating roller are respectively located at both ends of the length direction of the air conditioner inlet.

[0042] In the technical solution, the first and second rotating rollers are located at the two ends of the air inlet along the length of the air conditioner, so that the filter can fully cover the air inlet when unfolded, effectively filtering the air entering the air conditioner. This increases the filter area and filtration efficiency, ensuring that the air entering the room is fully filtered, reducing dust and impurities from entering the air conditioner, reducing pollution to components such as the indoor heat exchanger, helping to maintain the heat exchange efficiency of the air conditioner, and extending its service life. At the same time, this layout also allows for the rational arrangement of the filter winding and rotation within a limited space, facilitating a thorough cleaning of the filter by the cleaning module.

[0043] In some embodiments of this application, the first rotating roller and the second rotating roller are located at the same end of the air conditioner inlet, and a steering rod is provided at the end of the air conditioner inlet away from the first rotating roller, and the filter screen is wound around the steering rod.

[0044] In this technical solution, the first rotating roller and the second rotating roller can be arranged adjacent to each other, thereby enabling the configuration of a transmission structure. The rotation of the first rotating roller and the second rotating roller can be achieved through a first driving component, which saves costs.

[0045] In addition, this application also provides an air conditioner indoor unit, which includes:

[0046] The casing has an air conditioning inlet at its top;

[0047] An indoor heat exchanger is disposed inside the housing;

[0048] An indoor fan causes airflow to enter the housing through the air conditioner inlet, and after heat exchange via the indoor heat exchanger, it is introduced into the room.

[0049] The filtering module includes:

[0050] The first rotating roller is located at one end of the air conditioner inlet;

[0051] The second rotating roller is located at the end of the air conditioner inlet that is away from the first rotating roller;

[0052] The filter screen is ring-shaped and fitted with the first rotating roller and the second rotating roller;

[0053] A first driving member is used to drive the first rotating roller and / or the second rotating roller to rotate, so as to realize the rotation of the filter screen;

[0054] The cleaning module includes:

[0055] A cleaning brush for contacting the filter screen, the cleaning brush comprising a brush shaft and bristles disposed on the brush shaft;

[0056] A second drive component is used to rotate the cleaning brush.

[0057] A comb, used to contact a cleaning brush; the comb includes a plurality of spaced-apart teeth;

[0058] A first reference line and a second reference line are defined; at the instant the bristles contact the end of the comb teeth, the length direction of the bristles is located on the first reference line; at the instant the bristles detach from the end of the comb teeth, the length direction of the bristles is located on the second reference line.

[0059] At the instant the bristles contact the end of the comb teeth, the distance a from the point where the comb teeth contact the bristles to the root of the corresponding bristles is ;

[0060] The angle between the first reference line and the second reference line is α;

[0061] The minimum angle between the length direction of the comb teeth and the first reference line is β;

[0062] The radius of the brush shaft is r;

[0063] The shortest distance from the tip of the bristles to the axis of the brush shaft is y;

[0064] Satisfy, y=(a+r)*cosα+(a+r)*sinα / tan(β-α).

[0065] In this technical solution, the relative positions of the comb and the cleaning brush are set based on specific geometric relationships. This allows the comb to effectively remove dust from the bristles during the brush's rotation. Cleaning dust gradually from the bristle root to the tip ensures overall cleaning effectiveness, thereby improving the cleaning brush's ability to clean the filter. This maintains the filter's good filtration performance, extends its lifespan, reduces air conditioning energy consumption, and minimizes bacterial growth. Furthermore, this angle setting allows control over the number of bristles in contact between the comb and the cleaning brush, thus controlling the contact area and ensuring that the resistance experienced by the cleaning brush is not excessive, thereby ensuring stable brush rotation.

[0066] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0067] Figure 1 This is a schematic diagram of the overall structure of an air conditioner indoor unit according to an embodiment of this application;

[0068] Figure 2 This is a partial cross-sectional view of an indoor air conditioning unit according to an embodiment of this application;

[0069] Figure 3 This is a schematic diagram of the cleaning module of an air conditioner indoor unit according to an embodiment of this application;

[0070] Figure 4 This is a schematic diagram of the cleaning module of an air conditioner indoor unit according to an embodiment of this application;

[0071] Figure 5 This is a cross-sectional view of the cleaning module of an air conditioner indoor unit according to an embodiment of this application when one of the brush bristles just comes into contact with the comb teeth.

[0072] Figure 6 This is a cross-sectional view of the cleaning module of an air conditioner indoor unit according to an embodiment of this application when one of the brush bristles has just separated from the comb teeth.

[0073] Figure 7 This is a schematic diagram showing the relationship between the brush and the comb teeth in the cleaning module of an air conditioner indoor unit according to an embodiment of this application;

[0074] Figure 8 This is a schematic diagram showing the relationship between the brush and the comb teeth in the cleaning module of an air conditioner indoor unit according to an embodiment of this application;

[0075] Figure 9 This is a schematic diagram of the toothed comb of an air conditioner indoor unit according to an embodiment of this application;

[0076] Figure 10 This is a partial front view of the comb of an air conditioner indoor unit according to an embodiment of this application.

[0077] In the above figures: 100, housing; 200, first rotating roller; 300, second rotating roller; 400, filter screen; 500, cleaning brush; 501, brush shaft; 502, brush bristles; 600, comb; 601, comb teeth. Detailed Implementation

[0078] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0079] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0080] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0081] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0082] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0083] In this application, the indoor unit of the air conditioner includes a casing, an indoor heat exchanger, and an indoor fan. The indoor heat exchanger and the indoor fan are disposed inside the casing. Indoor air enters the casing and comes into contact with the indoor heat exchanger. After heat exchange between the indoor heat exchanger and the air, the heat-exchanged air is output to the room under the action of the indoor fan, thereby achieving the regulation of the indoor temperature.

[0084] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0085] Please refer to all the accompanying drawings. In one illustrative embodiment of the indoor unit of the air conditioner of this utility model, the indoor unit includes a housing 100, and an air conditioning inlet is provided on the top of the housing 100. The air conditioning inlet is used for air to pass through and enter the housing 100.

[0086] In some embodiments, the indoor unit of the air conditioner includes an indoor heat exchanger disposed inside the housing 100. The indoor heat exchanger is a key component for heat exchange in the air conditioning system. In cooling mode, refrigerant evaporates within the heat exchanger, absorbing heat from the surrounding air.

[0087] In some embodiments, the indoor unit of the air conditioner includes an indoor fan disposed inside the housing 100; the indoor fan causes airflow to enter the housing 100 through the air conditioner air inlet, and after heat exchange by the indoor heat exchanger, it is introduced into the room.

[0088] In some embodiments, the indoor unit of the air conditioner includes a filter module disposed within the housing 100. The filter module of the air conditioner is mainly used to purify the air entering the air conditioner and intercept impurities such as dust, pollen, and hair in the air, playing an important role in the normal operation of the air conditioner and the improvement of indoor air quality.

[0089] In some embodiments, the filter module includes a first rotating roller 200 disposed within the housing 100. The filter module also includes a second rotating roller 300 disposed within the housing 100. The filter module further includes a filter screen 400, with both ends of the filter screen 400 wound around the first rotating roller 200 and the second rotating roller 300, respectively. When the first rotating roller 200 winds up the filter screen, the second rotating roller 300 unwinds it; conversely, when the second rotating roller 300 winds up the filter screen 400, the first rotating roller 200 unwinds it, thereby enabling movement of the filter screen 400.

[0090] In some embodiments, the filtering module further includes a first driving member for driving the first rotating roller 200 to rotate.

[0091] In some embodiments, the first driving member is used to drive the second rotating roller 300 to rotate. The first rotating roller 200 and the second rotating roller 300 can rotate simultaneously to achieve the rotation of the filter screen 400. Alternatively, the first rotating roller 200 or the second rotating roller 300 can rotate individually to achieve the rotation of the filter screen 400.

[0092] In some embodiments, the indoor unit of the air conditioner also includes a cleaning module for cleaning the filter 400, thereby cleaning the dust on the filter 400, improving the filtration effect of the filter 400, and ensuring that the indoor unit of the air conditioner still has a good effect after long-term operation.

[0093] In some embodiments, the cleaning module includes a cleaning brush 500 for contacting the filter 400. The cleaning brush 500 includes a brush shaft 501 and bristles 502 disposed on the brush shaft 501. The cleaning brush 500 plays a crucial role in the air conditioning filter 400 cleaning system. Its brush shaft 501 provides support for the bristles 502, ensuring the stability of the bristles 502 during rotation. The bristles 502 directly contact the filter 400, and under the drive of the second driving component, the bristles 502 can wipe and clean the surface of the filter 400, effectively removing dust and impurities accumulated on the filter 400. Through close contact with the filter 400, the bristles 502 can penetrate deep into the pores of the filter 400, cleaning away fine particles, thereby ensuring the air permeability and filtration effect of the filter 400, and maintaining the normal ventilation and heat exchange functions of the air conditioner. Moreover, the rotation of the cleaning brush 500 makes the cleaning process more even and comprehensive. Compared with the traditional fixed cleaning method, it can avoid the problem of over-cleaning or under-cleaning in some areas, extend the service life of the filter 400, and reduce the problems of increased air conditioning energy consumption and performance degradation caused by filter 400 clogging, thus providing users with consistently good indoor air quality.

[0094] In some embodiments, the cleaning module includes a second drive unit for rotating the cleaning brush 500; the second drive unit provides a power source for the cleaning brush 500, enabling it to rotate continuously. By precisely controlling the rotation direction and speed, the relative movement between the cleaning brush 500 and the filter 400 is ensured to be reasonable, achieving efficient cleaning. This allows the bristles 502 to contact the filter 400 at different positions and angles, enhancing the cleaning effect and preventing dust accumulation on the filter 400. Moreover, the rotating cleaning brush 500 can simulate manual wiping motions, removing stubborn dust more effectively than static cleaning methods, maintaining the filter 400's good filtration performance, ensuring smooth air conditioning ventilation, reducing energy consumption, extending the air conditioner's lifespan, and improving the user experience.

[0095] In some embodiments, the cleaning module includes a comb 600 for contacting the cleaning brush 500; the comb 600 includes a plurality of spaced-apart teeth 601. The spaced-apart teeth 601 of the comb 600 can fully contact the cleaning brush 500 when it rotates. This effectively removes dust adhering to the brush bristles 502, preventing dust accumulation on the bristles 502 and affecting the cleaning effect. It ensures that the cleaning brush 500 is always in good working condition, continuously providing efficient cleaning for the filter 400, maintaining the good filtration performance of the air conditioning filter 400, and ensuring stable operation of the air conditioner.

[0096] In some embodiments, a first reference line and a second reference line are defined; at the instant the bristles 502 contact the end of the comb teeth 601, the length direction of the corresponding bristles 502 is located on the first reference line; at the instant the bristles 502 detach from the end of the comb teeth 601, the length direction of the corresponding bristles 502 is located on the second reference line. At the instant the bristles 502 contact the end of the comb teeth 601, the distance from the point of contact between the comb teeth 601 and the bristles 502 to the root of the corresponding bristle 502 is 'a'. The angle between the first reference line and the second reference line is 'α'. The minimum angle between the length direction of the comb teeth 601 and the first reference line is 'β'. The radius of the brush shaft 501 is 'r'. The shortest distance from the end of the bristles 502 to the axis of the brush shaft 501 is 'y'. This satisfies y = (a + r) * cosα + (a + r) * sinα / tan(β - α).

[0097] By employing the above-described scheme, the relative positions of the comb 600 and the cleaning brush 500 are set based on specific geometric relationships. This allows the comb 600 to effectively remove dust from the bristles 502 during the rotation of the cleaning brush 500. Cleaning dust gradually from the root to the tip of the bristles 502 ensures overall cleaning effectiveness, thereby improving the cleaning ability of the cleaning brush 500 on the filter 400. This allows the filter 400 to maintain good filtration performance, extends its lifespan, reduces air conditioning energy consumption, and minimizes bacterial growth. Furthermore, this angle setting allows control over the number of bristles 502 in contact between the comb 600 and the cleaning brush 500, thus controlling the contact area and ensuring that the resistance experienced by the cleaning brush 500 is not excessive, thereby ensuring stable rotation of the cleaning brush 500.

[0098] In some embodiments, 90°>β>0° is ensured. This design ensures that the comb 600 can effectively contact the bristles 502 to clean dust, while avoiding excessive interference between the comb 600 and the bristles 502, which would affect the normal rotation of the cleaning brush 500.

[0099] In some embodiments, ensuring a > 1 mm provides a sufficient safe distance between the contact point of the comb 600 and the bristles 502, preventing the comb 600 from colliding or rubbing against components such as the brush shaft 501 near the root of the bristles 502 during operation. This ensures the stable operation of the cleaning module, reduces the risk of component wear and damage, and improves the reliability and durability of the entire cleaning system.

[0100] In some embodiments, the length of the comb 600 is greater than the length of the cleaning brush 500. The greater length of the comb 600 allows it to clean the bristles 502 along the entire length of the cleaning brush 500, effectively reaching both the base and tip of the bristles. This avoids situations where insufficient length of the comb 600 results in some areas of the bristles 502 remaining uncleaned, further improving the cleaning effect of the cleaning brush 500. This ensures the cleanliness of the filter 400, maintains good ventilation and heat exchange efficiency of the air conditioner, and improves indoor air quality.

[0101] In some embodiments, the length of the comb 600 can be equal to the length of the cleaning brush 500. When the length of the comb 600 is equal to the length of the cleaning brush 500, it ensures that the bristles 502 have a chance to fully contact the comb teeth 601 along the entire length of the cleaning brush 500. Furthermore, it does not occupy additional internal space of the housing 100, thus optimizing the size of the air conditioner indoor unit.

[0102] In some embodiments, the first rotating roller 200 and the second rotating roller 300 are parallel to each other. The length direction of the first rotating roller 200 and the second rotating roller 300 is arranged along the front-rear direction of the housing 100. The width direction of the filter screen 400 is the same as the length direction of the first rotating roller 200.

[0103] In some embodiments, the length direction of the cleaning brush 500 is the same as the length direction of the first rotating roller 200. That is, the length direction of the cleaning brush 500 is the same as the width direction of the filter screen 400, the length direction of the comb 600 is the same as the length direction of the cleaning brush 500, and a plurality of comb teeth 601 are spaced apart along the length direction of the comb 600.

[0104] In some embodiments, the spacing between two adjacent comb teeth 601 is L1, satisfying 1mm ≤ L1 ≤ 5mm. Choosing an appropriate spacing within this range ensures that the comb 600 brushes the bristles 502 with sufficient strokes to achieve a good cleaning effect, while avoiding excessive resistance to the bristles 502 as they pass through the comb teeth 601 due to an excessively small spacing. A reasonable spacing between the comb teeth 601 helps reduce the driving force required for the cleaning brush 500 to rotate, reduces the torque requirements of the motor, lowers motor energy consumption, and extends motor lifespan, while also ensuring that the cleaning effect is not affected, thus achieving a balance between high efficiency and energy saving in the cleaning system.

[0105] In some embodiments, the spacing between any two adjacent combs 600 is the same. This ensures that the bristles 502 are uniformly combed by the combs 600 during rotation. This helps avoid situations where some parts of the bristles 502 are over-cleaned while others are under-cleaned due to uneven spacing of the combs 600, ensuring that the entire bristles 502 are cleaned evenly in each rotation cycle. This makes the cleaning effect of the cleaning brush 500 on the filter 400 more stable and reliable, maintains the consistency of the filter 400's filtration performance, ensures stable operation of the air conditioner, and provides users with a continuously good indoor environment.

[0106] In some embodiments, the width of the end of the comb teeth 601 along the length of the cleaning brush 500 is L2, satisfying 0.5mm ≤ L2 ≤ 2mm. This width design ensures that the comb teeth 601 have sufficient strength and rigidity to withstand the contact force with the bristles 502, while also preventing excessive compression or damage to the bristles 502 due to excessive width. A suitable end width helps the comb 600 better comb the bristles 502, effectively removing dust from them, while reducing damage to the bristles 502, extending the service life of the cleaning brush 500, and ensuring a long-term stable cleaning effect of the cleaning system.

[0107] In some embodiments, at the instant the bristles 502 contact the tip of the comb teeth 601, the distance from the point of contact between the comb teeth 601 and the bristles 502 to the tip of the bristles 502 is b. The length of the comb teeth 601 is L3, satisfying L3>b+2mm. This design ensures that the comb teeth 601 can cover a sufficient range of the bristles 502 from root to tip in the length direction, so that dust near the root and dust at the tip of the bristles 502 can be effectively cleaned during contact with the comb teeth 601. In particular, for dust that is easy to adhere to and difficult to clean at the root of the bristles 502, the sufficiently long comb teeth 601 can penetrate deep into the root of the bristles 502 for cleaning, preventing dust from accumulating at the root of the bristles 502, further improving the cleaning effect of the cleaning brush 500, ensuring the cleaning efficiency of the filter 400, and maintaining good operating performance and air quality of the air conditioner.

[0108] In some embodiments, the first rotating roller 200 and the second rotating roller 300 are located at opposite ends of the length of the air conditioner inlet. Positioning the first rotating roller 200 and the second rotating roller 300 at opposite ends of the length of the air conditioner inlet ensures that the filter 400, when unfolded, can fully cover the air conditioner inlet, effectively filtering the air entering the air conditioner. This increases the filtration area and efficiency of the filter 400, ensuring that the air entering the room is fully filtered, reducing dust and impurities entering the air conditioner, lowering contamination of components such as the indoor heat exchanger, helping to maintain the heat exchange efficiency of the air conditioner, and extending its service life. This layout also allows for the rational arrangement of the filter 400's winding and rotation within a limited space, facilitating thorough cleaning of the filter 400 by the cleaning module.

[0109] In some embodiments, when the first rotating roller 200 and the second rotating roller 300 are located at the two ends of the air inlet of the air conditioner along the length direction, there are two first driving members, and the two first driving members drive the first rotating roller 200 and the second rotating roller 300 to rotate respectively.

[0110] In some embodiments, when the first rotating roller 200 and the second rotating roller 300 are located at opposite ends of the air inlet along the length of the air conditioner, only one first driving member can be provided. The first driving member is used to drive the first rotating roller 200 or the second rotating roller 300 to rotate. A transmission structure is also provided to achieve synchronous rotation of the first rotating roller 200 and the second rotating roller 300.

[0111] In some embodiments, the first rotating roller 200 and the second rotating roller 300 are located at the same end of the air conditioning inlet, and a steering rod is provided at the end of the air conditioning inlet away from the first rotating roller 200, with the filter 400 wound around the steering rod. In this configuration, the first rotating roller 200 and the second rotating roller 300 can be arranged adjacent to each other, allowing for the configuration of a transmission structure. The rotation of the first rotating roller 200 and the second rotating roller 300 can be achieved through a single first driving member, thus saving costs.

[0112] In some embodiments, when the first rotating roller 200 and the second rotating roller 300 are located at the same end of the air conditioner inlet, only one first driving member is provided, which drives the first rotating roller 200 or the second rotating roller 300 to rotate. A transmission structure is also provided to achieve synchronous rotation of the first rotating roller 200 and the second rotating roller 300.

[0113] In some embodiments, the first rotating roller 200 is located at one end of the air conditioner inlet. The second rotating roller 300 is located at the end of the air conditioner inlet away from the first rotating roller 200. The filter screen 400 is annular and sleeves the first rotating roller 200 and the second rotating roller 300. With this design, the rotation of the first rotating roller 200 or the second rotating roller 300 can drive the entire filter screen 400 to rotate, and the operating principle is similar to that of a conveyor belt. Only one first driving component is required, and no transmission mechanism is required to connect the first rotating roller 200 and the second rotating roller 300.

[0114] In some embodiments, for example, due to space and size limitations, the brush diameter is chosen as a+b+r=18mm, r=4mm. Simultaneously, to ensure a safe space between the comb 600 and the brush (to prevent interference), a>1mm, so we take 1.5mm. Three variables remain, making it impossible to determine the parameters.

[0115] First, we select a β of 46°, and then obtain the curve of y versus α: y = 5.5 * cosα + 5 * sinα / tan(46 - α). Substituting different values ​​of α into the curve and plotting a statistical line graph, we find that the larger α is, the larger y is, indicating that the dust is falling off from the inside out; simultaneously, the curvature gradually increases, meaning the falling speed gradually increases, which meets the requirements.

[0116] From the moment the dust comes into contact with the brush until it falls off, the maximum value of α (gamma) is achieved when the brush bristles 502 rotate 20°, meaning the dust falls off once every 20° rotation. The brush has 60 rows of bristles 502 in one revolution, or 6° per row. A 20° rotation means the comb 600 and the brush can simultaneously contact 3.3 rows of bristles 502. Substituting these values ​​into the formula, we get T = 3.3f * 7. Based on torque measurements using a torque fixture, the torque is approximately 60 mN * m, with each row of bristles 502 receiving a torque of 2.6 mN. Therefore, the final formula is T = γ / (3 * 2.6 * 7) = 6.07γ.

[0117] From the above, we can conclude that: A larger rotation angle results in more bristles 502 contacting the comb 600 with the brush, leading to better cleaning. However, this also increases resistance, requiring higher motor torque and thus higher costs. To ensure low cost and low resistance, the rotation angle cannot be too large; β must exist within a reasonable range with an optimal value. Therefore, the torque of the cleaning brush 500 can be tested before setting, and during calculations, the required torque should be ensured to be lower than the torque of the cleaning brush 500, ensuring that the cleaning brush 500 can rotate.

[0118] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air conditioner indoor unit characterized by comprising: It comprises: a shell, the top of which is provided with an air conditioner air inlet; an indoor heat exchanger, which is arranged inside the shell; an indoor fan, which makes air flow input into the shell through the air conditioner air inlet and input into the room after heat exchange through the indoor heat exchanger; a filtering module, which comprises: a first rotating roller, which is arranged in the shell; a second rotating roller, which is arranged in the shell; a filter screen, both ends of which are wound on the first rotating roller and the second rotating roller respectively; a first driving member, which is used to drive the first rotating roller and / or the second rotating roller to rotate, so as to realize the rotation of the filter screen; a cleaning module, which comprises: a cleaning brush, which is used to contact the filter screen, the cleaning brush comprising a brush shaft and brush hairs arranged on the brush shaft; a second driving member, which is used to drive the cleaning brush to rotate; a tooth comb, which is used to contact the cleaning brush; the tooth comb comprising a plurality of spaced combs; a first reference line and a second reference line are defined; the length direction of the brush hair corresponding to the first reference line is located at the moment when the end of the brush hair contacts the end of the comb; the distance between the point where the comb contacts the brush hair and the root of the corresponding brush hair is a at the moment when the end of the brush hair contacts the end of the comb; the included angle between the first reference line and the second reference line is α; the minimum included angle between the length direction of the comb and the first reference line is β; the radius of the brush shaft is r; the shortest distance between the end of the brush hair and the axis of the brush shaft is y; y=(a+r)*cosα+(a+r)*sinα / tan(β-α) is satisfied. 2.The indoor unit of the air conditioner according to claim 1, characterized by, Ensure that 90°>β>0°; a>1mm. 3.The indoor unit of the air conditioner according to claim 2, characterized by, The length of the tooth comb is greater than the length of the cleaning brush. 4.The indoor unit of the air conditioner according to claim 1, characterized by, The distance between the two adjacent combs is L1, which satisfies 1mm≤L1≤5mm. 5.The indoor unit of the air conditioner according to claim 4, characterized by, The distance between any two adjacent tooth combs is the same. 6.The indoor unit of the air conditioner according to claim 4, characterized by, The width of the end of the comb is L2, which satisfies 0.5mm≤L2≤2mm. 7.The indoor unit of the air conditioner according to claim 6, characterized by, The distance between the point where the comb contacts the brush hair and the end of the corresponding brush hair is b at the moment when the end of the cleaning brush contacts the end of the comb; The length of the comb is L3, which satisfies L3>b+2mm. 8.The indoor unit of the air conditioner according to claim 1, characterized by, The first rotating roller and the second rotating roller are respectively located at both ends of the length direction of the air conditioner air inlet. 9.The indoor unit of the air conditioner according to claim 1, characterized by, The first rotating roller and the second rotating roller are located at the same end of the air conditioner air inlet, and a turning rod is arranged at the end of the air conditioner air inlet away from the first rotating roller, and the filter screen is arranged around the turning rod.

10. An air conditioner indoor unit characterized by comprising: It comprises: a shell, the top of which is provided with an air conditioner air inlet; an indoor heat exchanger, which is arranged inside the shell; an indoor fan, which makes air flow input into the shell through the air conditioner air inlet and input into the room after heat exchange through the indoor heat exchanger; a filtering module, which comprises: a first rotating roller, which is located at one end of the air conditioner air inlet; a second rotating roller, which is located at the end of the air conditioner air inlet away from the first rotating roller; a filter screen, which is annular and sleeved on the first rotating roller and the second rotating roller; A first driving member for driving the first rotating roller and / or the second rotating roller to rotate, so as to rotate the filter screen; The cleaning module comprises: A cleaning brush for contacting the filter screen, the cleaning brush comprising a brush shaft and brush hairs arranged on the brush shaft; A second driving member for driving the cleaning brush to rotate; A tooth comb for contacting the cleaning brush, the tooth comb comprising a plurality of spaced comb teeth; A first reference line and a second reference line are defined; when the brush hairs contact the end of the comb teeth, the length direction of the brush hairs corresponds to the first reference line; when the brush hairs are separated from the end of the comb teeth, the length direction of the corresponding brush hairs corresponds to the second reference line; When the brush hairs contact the end of the comb teeth, the distance between the point where the comb teeth contact the brush hairs and the root of the corresponding brush hair is a; The included angle between the first reference line and the second reference line is α; The minimum included angle between the length direction of the comb teeth and the first reference line is β; The radius of the brush shaft is r; The shortest distance between the end of the brush hair and the axis of the brush shaft is y; y=(a+r)*cosα+(a+r)*sinα / tan(β-α).

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