Filtering device and control method thereof, air conditioner and computer readable storage medium

Abstract

The invention discloses a filtering device and a control method thereof, an air conditioner and a computer readable storage medium, the filtering device is applied to the air conditioner, the filtering device comprises a base, a reel, a filtering net and a driving module, and the base is provided with an air inlet channel; the reels are rotationally arranged on the base and comprise the first reel and the second reel which are arranged on the two opposite sides of the air inlet channel respectively; the filter screen is wound between the first reel and the second reel, and part of the filter screen is located in the air inlet channel. The driving module is arranged on the base and can drive the first reel to rotate so as to reel the part, located in the air inlet channel, of the filter screen. According to the technical scheme, the replacement convenience of the filter screen of the air conditioner can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a filtering device and a control method thereof, an air conditioner and a computer-readable storage medium. Background Art

[0002] After using the air conditioner for a period of time, the filter is prone to scaling and dirt clogging, which will cause the air conditioner's heat exchange effect to deteriorate and pollute the air, so the filter usually needs to be cleaned regularly. Understandably, manual cleaning requires the user to disassemble the air conditioner shell, remove the filter, and then reinstall the cleaned filter back to the air conditioner, making the use of the filter very troublesome. Summary of the invention

[0003] The main purpose of the present invention is to provide a filtering device, which is applied to an air conditioner and aims to improve the convenience of replacing the air conditioner filter.

[0004] To achieve the above object, the filtering device proposed by the present invention comprises:

[0005] A base, provided with an air inlet passage;

[0006] A reel, rotatably disposed on the base, the reel comprising a first reel and a second reel disposed on opposite sides of the air inlet channel;

[0007] A filter screen is wound between the first reel and the second reel, and a portion of the filter screen is located in the air inlet passage; and

[0008] The driving module is disposed on the base and can drive the first reel to rotate so as to retract the portion of the filter located in the air inlet passage.

[0009] Optionally, the base is provided with an installation cavity communicated with the air inlet channel, the reel is rotatably arranged in the installation cavity, and the driving module is arranged outside the installation cavity.

[0010] Optionally, two opposite cavity walls of the mounting cavity are respectively provided with a first axial hole and a second axial hole, the first reel comprises a first rotating part, a second rotating part and a first winding part connected in sequence, the first rotating part can be detachably mounted on the first axial hole and drivenly connected to the driving module, and the second rotating part can be detachably mounted on the second axial hole.

[0011] Optionally, the driving module includes a driving member, a driving gear arranged on the rotating shaft of the driving member, and a driven gear meshingly connected to the driving gear, the hub of the driven gear is rotatably arranged in the first shaft hole, and a limiting hole is provided on the inner end surface of the hub of the driven gear, and the first rotating part is inserted into the limiting hole.

[0012] Optionally, the second rotating part is rotatably arranged in the second axial hole, the outer end of the second rotating part is exposed outside the installation cavity and is for hand tightening, and the inner end of the second rotating part extends into the installation cavity and is threadedly connected with the first retracting part.

[0013] Optionally, two opposite cavity walls of the mounting cavity are respectively provided with a third axial hole and a fourth axial hole, the second reel comprises a third rotating part, a fourth rotating part and a second winding part connected in sequence, the third rotating part can be detachably mounted on the third axial hole, and the fourth rotating part can be detachably mounted on the fourth axial hole.

[0014] Optionally, a damping sleeve is provided on the outer periphery of the third rotating part, and the damping sleeve is rotatably arranged in the third axial hole.

[0015] Optionally, the fourth rotating part is rotatably arranged in the fourth axial hole, the outer end of the fourth rotating part is exposed outside the installation cavity and is for hand tightening, and the inner end of the fourth rotating part extends into the installation cavity and is threadedly connected with the second winding part.

[0016] Optionally, the filtering device further comprises a dust collecting member disposed on the base, and the dust collecting member is connected to the lower side of the mounting cavity corresponding to the first reel.

[0017] Optionally, the dust collecting member is detachably connected to the base;

[0018] Optionally, the dust collecting member is configured as a dust collecting box, and a box opening of the dust collecting box is arranged below the installation cavity.

[0019] Optionally, the base includes a mounting frame and an air inlet grille detachably connected to the mounting frame, and the mounting cavity is formed between the air inlet grille and the mounting frame.

[0020] The present invention also provides an air conditioner, comprising the aforementioned filtering device.

[0021] The present invention further provides a filter device control method, which is applied to the aforementioned filter device, and the filter device control method comprises the steps of: receiving a filter screen replacement signal; and controlling a driving module of the filter device to operate so that the first reel rotates a target angle α.

[0022] Optionally, the target angle α is set in an arithmetic progression related to the initial angle α1 and the number of renewals n, and satisfies the formula α=α1+(n-1)*d, and the tolerance d of the arithmetic progression is set to be less than 0.

[0023] Optionally, the tolerance d of the arithmetic progression is related to the initial angle α1 and the final angle α m , the total number of times that can be replaced is related to m, and satisfies the formula d = (α m -α1) / (m-1).

[0024] Optionally, the filter device control method further comprises the steps of: determining whether the number of replacement times n reaches a preset number of times C, wherein the preset number of times C is less than the total number of replacement times m; if so, controlling the filter device to enter a sleep mode and sending a reminder signal.

[0025] Optionally, the filter replacement signal includes a default replacement signal, and the filter device control method further includes the steps of: determining whether the usage time t of the current filter exceeds a preset period T; if so, generating the default replacement signal.

[0026] Optionally, the filter replacement signal also includes a direct replacement signal. After the step of controlling the driving module of the filter device to operate so that the first reel rotates to a target angle α, the filter device control method also includes the step of resetting the usage time t to zero.

[0027] The present invention further provides a computer-readable storage medium, on which a filter device control program is stored. When the filter device control program is executed by a processor, the steps of the aforementioned filter device control method can be executed.

[0028] In the technical solution of the present invention, this part of the filter located on the air inlet channel can effectively filter the air flowing through the air inlet channel. When the filtering effect is significantly reduced after working for a certain period of time, the first reel can be driven to rotate through the driving module, so that the original part of the filter on the air inlet channel can be rolled up on the first reel, and the new filter on the second reel can be pulled to the air inlet channel, thereby completing the replacement of this part of the filter in the air inlet channel. In this way, the problem of poor air intake capacity caused by scaling and dirt blockage of the filter can be conveniently solved, and the filter device has a simple structure and is easy to implement, thereby reducing the manufacturing cost of the air conditioner. In addition, this process does not require the user to disassemble the air conditioner, nor does it require the removal, cleaning and installation of the filter, thereby significantly improving the convenience of using the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 A schematic structural diagram of an embodiment of a filtering device of the present invention;

[0031] Figure 2 for Figure 1Another structural schematic diagram of the filtering device shown;

[0032] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the filter device, wherein the cross-sectional plane is perpendicular to the axis of the first reel and passes through the mounting cavity, when the first reel is unloaded and the second reel is fully loaded;

[0033] Figure 4 for Figure 1 A cross-sectional view of the filter device shown, when the first reel is empty and the second reel is fully loaded;

[0034] Figure 5 for Figure 1 Another cross-sectional view of the filter device shown, with the first reel half loaded and the second reel half loaded;

[0035] Figure 6 for Figure 1 Another cross-sectional view of the filter device shown, when the first reel is fully loaded and the second reel is empty;

[0036] Figure 7 for Figure 1 Another structural schematic diagram of the filtering device shown;

[0037] Figure 8 for Figure 7 A partial enlarged view of the center A, at which the second rotating part is separated from the first reeling part and the base;

[0038] Fig. 9 for Figure 1 Another three-dimensional cross-sectional view of the filter device, wherein the cross-sectional plane is perpendicular to the axis of the first reel and passes through the first rotating portion and the third rotating portion;

[0039] Fig.10 It is a schematic diagram of the hardware operating environment of the filtering device of the present invention;

[0040] Fig.11 Schematic diagram of the steps of the first embodiment of the filter device control method of the present invention.

[0041] Description of Figure Numbers:

[0042]

[0043]

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] The present invention proposes a filter device, which is applied to an air conditioner, for example, it can be applied to the indoor unit of a split air conditioner and serve as a primary filter device of the indoor unit; of course, the solution of the present invention can also be applied to an integral air conditioner, and this application does not make specific limitations on this. Figures 1 to 3 In one embodiment of the present invention, the filtering device comprises:

[0050] The base 10 is provided with an air inlet passage 11;

[0051] A reel is rotatably disposed on the base 10, and includes a first reel 20 and a second reel 30 disposed on opposite sides of the air inlet channel 11;

[0052] The filter screen 40 is wound between the first reel 20 and the second reel 30 , and a portion of the filter screen 40 is located in the air inlet passage 11 ; and

[0053] The driving module 50 is disposed on the base 10 and is capable of driving the first reel 20 to rotate so as to roll up a portion of the filter screen 40 located in the air inlet passage 11 .

[0054] In the technical solution of the present invention, the filter 40 located on the air inlet channel 11 can effectively filter the air flowing through the air inlet channel 11. When the filtering effect is significantly reduced after working for a certain period of time, the first reel 20 can be driven to rotate by the driving module 50, so that the original filter 40 on the air inlet channel 11 can be rolled up on the first reel 20, and the new filter 40 on the second reel 30 can be pulled onto the air inlet channel 11, thereby completing the replacement of the filter 40 in the air inlet channel 11. In this way, the problem of poor air intake capacity caused by scaling and dirt blockage of the filter 40 can be conveniently solved, and the filtering device has a simple structure and is easy to implement, thereby reducing the manufacturing cost of the air conditioner. In addition, the process does not require the user to disassemble the air conditioner, nor does it require the removal, cleaning and installation of the filter 40, thereby significantly improving the convenience of using the filter 40.

[0055] It can be understood that the source of the force that enables the second reel 30 to rotate has various forms. For example, in one embodiment, optionally, the first reel 20 serves as a driving shaft and the second reel 30 serves as a driven shaft. The portion of the filter 40 located in the air inlet channel 11 is subjected to the pulling force transmitted by the winding action of the first reel 20, and can be transmitted to the portion of the filter 40 on the second reel 30, thereby driving the second reel 30 to follow the rotation, thereby realizing the synchronous winding and releasing of the filter 40 on the first reel 20 and the second reel 30, and can simplify the structure of the filter device and reduce the manufacturing cost of the filter device, and can also reduce the failure rate of the filter device.

[0056] Of course, in other embodiments, the first reel 20 and the second reel 30 both serve as driving shafts, that is, the second reel 30 is also driven and connected to a driving module 50, or the first reel 20 and the second reel 30 are driven by the same driving module 50. For example, in some embodiments, the driving module 50 includes a driving motor, a driving pulley, a driven pulley and a belt. The driving pulley is driven by the driving motor to rotate and drives the belt to rotate, and the belt then drives the driven pulley to rotate. The first reel 20 is driven and connected to the driving pulley, and the second reel 30 is driven and connected to the driven pulley.

[0057] In one embodiment, optionally, the base 10 is provided with an installation cavity 12 connected to the air inlet channel 11, the reel is rotatably arranged in the installation cavity 12, and the drive module 50 is arranged outside the installation cavity 12. In this way, arranging the reel in the installation cavity 12 can play a certain protective role for the reel, especially, it can reduce the risk of the new filter 40 on the second reel 30 being contaminated by dust, which is conducive to keeping the new filter 40 on the second reel 30 clean and tidy. On the other hand, arranging the drive module 50 outside the installation cavity 12 is conducive to reducing the volume of the installation cavity 12, thereby facilitating the miniaturization design of the filter device, and can also facilitate the maintenance of the drive module 50. Of course, in other embodiments, the base 10 may not be provided with the installation cavity 12, and the reel is directly exposed on the outer side of the base 10; or, the drive module 50 is also arranged in the installation cavity 12.

[0058] Please refer to Figure 2 , Figure 4 , Figure 8 and Fig. 9 In one embodiment, optionally, two opposite cavity walls of the installation cavity 12 are respectively provided with a first shaft hole 121 and a second shaft hole 122, and the first reel 20 includes a first rotating portion 21, a second rotating portion 22 and a first retracting portion 23 connected in sequence, the first rotating portion 21 is rotatably disposed in the first shaft hole 121, and the second rotating portion 22 is rotatably disposed in the second shaft hole 122. In this way, the connection structure between the base 10 and the reel is simple, which is conducive to reducing the manufacturing cost. Further optionally, two opposite cavity walls of the mounting cavity 12 are respectively provided with a third axial hole 123 and a fourth axial hole (not shown in the drawings), and the second reel 30 includes a third rotating portion 31, a fourth rotating portion 32 (and a second winding portion 33) connected in sequence, the third rotating portion 31 is rotatably arranged in the third axial hole 123, and the fourth rotating portion 32 is rotatably arranged in the fourth axial hole. Of course, in other embodiments, another cavity wall of the mounting cavity 12 may be provided with an axial protrusion, and the second rotating portion 22 may be provided with an axial hole corresponding to the axial protrusion, and the axial protrusion may be rotatably inserted in the axial hole; or another cavity wall of the mounting cavity 12 may be provided with a boss facing the first reel 20, a bearing is embedded in the boss, and the second rotating portion 22 is inserted and installed on the inner ring of the bearing.

[0059] In order to facilitate the replacement of the filter 40, in one embodiment, optionally, the first rotating part 21 can be detachably mounted on the first shaft hole 121 and is drivingly connected to the driving module 50, and the second rotating part 22 can be detachably mounted on the second shaft hole 122; the third rotating part 31 can be detachably mounted on the third shaft hole 123, and the fourth rotating part 32 can be detachably mounted on the fourth shaft hole. In this way, when the filter 40 is used up, the first reel 20 and the second reel 30 are first removed, and then the old filter 40 is removed and the new filter 40 is installed, which can facilitate the user's operation and thus improve the user experience.

[0060] Of course, in other embodiments, one end of the first winding portion 23 can be detachably connected to the first rotating portion 21, the other end of the first winding portion 23 can be detachably connected to the second rotating portion 22, one end of the second winding portion 33 can be detachably connected to the third rotating portion 31, and the other end of the second winding portion 33 can be detachably connected to the fourth rotating portion 32, thereby realizing the disassembly of the first winding portion 23 (i.e., the first reel 20) and the second winding portion 33 (i.e., the second reel 30).

[0061] Specifically, there are many ways to install the filter 40 as a consumable on the reel. For example, in some embodiments, most of the filter 40 has been wound on the first reel before leaving the factory, and the free end of the filter 40 has been fixed to the second reel by means of adhesive, buckle or screw. That is, when the filter 40 is not in use, the first reel is in a fully loaded state and the second reel is in an unloaded state. Figure 4 When installing the filter 40, the first roll is sleeved on the outer periphery of the second roll 30, and the second roll is sleeved on the outer periphery of the first roll 20. As the filter 40 is used, the portion of the filter 40 on the first roll gradually decreases and the portion of the filter 40 on the second roll gradually increases, as shown in FIG. Figure 5 As shown, the filter screens 40 on the first reel and the second reel are both in a half-loaded state; until most of the filter screen 40 is wound on the second reel, that is, when the filter screen 40 is used up, the first reel is in an empty state and the second reel is in a fully loaded state, as shown in FIG. Figure 6 When the filter 40 on the second reel is used up, the first reel 20 and the second reel 30 are first removed from the base 10, and then the first reel is pulled out along the axis of the second reel 30, and the second reel is pulled out along the axis of the first reel 20, and the old filter 40 is removed. In this way, the operation steps of replacing the filter 40 by the user can be significantly simplified, thereby improving the user experience.

[0062] Specifically, optionally, the first reel may be fixed to the second reel 30 by means of structures such as adhesives, buckles or screws, and / or the second reel may be fixed to the second reel 30 by means of structures such as adhesives, buckles or screws.

[0063] In other embodiments, the filter screen 40 may be directly wound on the first reel 20 and the second reel 30 without passing through the reel. For example, one end (i.e., the fixed end) of the filter screen 40 is fixed to the outer circumference of the second reel 30 by means of adhesive, buckle or screw, and then the filter screen 40 is orderly wound around the outer circumference of the second reel 30 until most of the filter screen 40 is wound on the second reel 30, and then the other end (i.e., the free end) of the filter screen 40 is fixed to the outer circumference of the first reel 20 by means of adhesive, buckle or screw. When the filter screen 40 on the second reel 30 is used up, the first reel 20 and the second reel 30 are first disassembled, and then the fixed end of the filter screen 40 on the second reel 30 is released, and the entire roll of the filter screen 40 is pulled out from the first reel 20 along the axial direction of the first reel 20, and finally the free end of the filter screen 40 on the second reel 30 is released, and the removal of the old filter screen 40 is completed. It can be understood that in this embodiment, even if the first reel 20 and the second reel 30 are not disassembled, the filter 40 can be removed from the first reel 20 and the second reel 30, or the filter 40 can be installed on the first reel 20 and the second reel 30. Therefore, the first reel 20 and the second reel 30 of the present application can also be configured to be rotatable on the base 10, but cannot be removed from the base 10.

[0064] Of course, in other embodiments, the filter 40 may be indirectly fixed to the reel through a reel, and the filter 40 may be directly fixed to the reel in combination. For example, the fixed end of the filter 40 is fixed to the second reel 30 through a reel, and the free end of the filter 40 is directly fixed to the first reel 20. In this case, the second reel 30 is configured to be detachable from the base 10, and the first reel 20 may be configured to be detachable from the base 10 or not detachable from the base 10. For another example, the fixed end of the filter 40 is directly fixed to the second reel 30, and the free end of the filter 40 is fixed to the first reel 20 through a reel. In this case, the first reel 20 is configured to be detachable from the base 10, and the second reel 30 may be detachable from the base 10 or not detachable from the base 10.

[0065] Please refer to Figure 2 and Fig. 9In one embodiment, optionally, the driving module 50 includes a driving member 51, a driving gear 52 disposed on the rotating shaft of the driving member 51, and a driven gear 53 meshingly connected to the driving gear 52, the hub of the driven gear 53 is rotatably disposed in the first shaft hole 121, and a limiting hole 531 is disposed on the inner end surface of the hub of the driven gear 53, and the first rotating part 21 is inserted into the limiting hole 531. That is, the first rotating part 21 is detachably installed with the first shaft hole 121 through the detachable insertion with the driven gear 53. In this way, the transmission smoothness and stability can be improved through the gear meshing transmission. Secondly, the hub of the driven gear 53 is directly rotatably disposed in the first shaft hole 121, which can simplify the structure of the base 10. Of course, in other embodiments, the rotating shaft of the driving member 51 may be directly connected to the first rotating part 21. For example, the first rotating part 21 is rotatably arranged in the first shaft hole 121, and a long strip-shaped limiting hole 531 is provided on the end face, and the rotating shaft of the driving member 51 is inserted into the limiting hole 531.

[0066] Specifically and optionally, the driving member 51 is configured as a motor. Of course, in other embodiments, the driving member 51 may also be configured as a pneumatic motor or a hydraulic motor.

[0067] Please refer to Figure 7 and Figure 8 In one embodiment, optionally, the second rotating portion 22 is rotatably disposed in the second shaft hole 122, the outer end of the second rotating portion 22 is exposed outside the installation cavity 12 and is for manual tightening, and the inner end of the second rotating portion 22 extends into the installation cavity 12 and is threadedly connected to the first retracting portion 23. In this way, the disassembly and installation of the first reel 20 can be facilitated, and the structure is simple and easy to implement. Of course, in other embodiments, the first retracting portion 23 can also be rotatably disposed in the second shaft hole 122, the second rotating portion 22 is exposed outside the installation cavity 12 and is for manual tightening, and the end of the first retracting portion 23 is exposed outside the installation cavity 12 and is threadedly connected to the second rotating portion 22.

[0068] Please refer to Figure 8 Specifically, optionally, the inner end surface of the second rotating part 22 is provided with a threaded hole 221, and the end surface of the first retracting part 23 is provided with a threaded column 231, so as to realize the threaded connection between the two. Of course, in other embodiments, the inner end surface of the second rotating part may be provided with a threaded column, and the end surface of the first retracting part may be provided with a threaded hole.

[0069] It is worth mentioning that a limiting hole 531 is provided on the inner end face of the hub of the driven gear 53, the first rotating part 21 is inserted into the limiting hole 531, and in the embodiment where the inner end of the second rotating part 22 extends into the mounting cavity 12 and is threadedly connected to the first winding part 23, since the axial length of the part formed by the first winding part 23 and the first rotating part 21 is smaller than the spacing between the first axial hole 121 and the second axial hole 122, that is, smaller than the length of the mounting cavity 12 in the left and right direction, the part can be pulled out along the height direction (that is, the up and down direction) of the mounting cavity 12 after the threaded connection with the second rotating part 22 is released, thereby facilitating the user to disassemble and install the first reel 20.

[0070] Please refer to Figure 2 and Fig. 9 In one embodiment, optionally, a damping sleeve 34 is sleeved on the outer periphery of the third rotating portion 31, and the damping sleeve 34 is rotatably arranged in the third shaft hole 123. In this way, the second reel 30 is indirectly arranged in the third shaft hole 123 through the damping sleeve 34. When the second reel 30 is pulled and rotated by the filter 40 as a driven shaft, the hole wall of the third shaft hole 123 generates a large dynamic friction force on the damping sleeve 34, thereby generating a certain impedance effect on the rotation of the second reel 30, thereby enabling the second reel 30 to provide tension to the filter 40 located on the air inlet channel 11, thereby avoiding the problem of excessive relaxation of the filter 40 in this part. Of course, in other embodiments, the damping sleeve 34 may not be provided.

[0071] In one embodiment, optionally, the damping sleeve 34 is made of rubber, silicone or other elastic materials, and is squeezed into the third shaft hole 123 by using its elastic deformation ability, so as to have a damping effect on the rotation of the second reel 30. Further optionally, the outer circumferential surface of the end of the second reel 30 is provided with a plurality of limiting ribs, and the plurality of limiting ribs are distributed at intervals along the circumference of the second reel 30, and the damping sleeve 34 is provided with limiting grooves corresponding to the limiting ribs, so that the problem of relative rotation between the damping sleeve 34 and the second reel 30 can be avoided. Of course, in other embodiments, the damping sleeve 34 can also be configured as a non-elastic material, such as metal or plastic, and the outer circumferential surface of the damping sleeve 34 is provided with a plurality of friction ribs, and the plurality of friction ribs are distributed at intervals along the circumference of the second reel 30, and the friction ribs are arranged with interference fit with the third shaft hole 123.

[0072] In one embodiment, optionally, the fourth rotating part 32 is rotatably arranged in the fourth shaft hole, the outer end of the fourth rotating part 32 is exposed outside the installation cavity 12 and is for manual tightening, and the inner end of the fourth rotating part 32 extends into the installation cavity 12 and is threadedly connected with the second retracting part 33. That is, the installation structure configuration of the fourth rotating part 32 and the second rotating part 22 is the same, so as to facilitate the disassembly and installation of the second reel 30. Further optionally, the outer end of the fourth rotating part 32 and the outer end of the second rotating part 22 are exposed on the same side of the base 10. Of course, in other embodiments, both ends of the second reel 30 may be sleeved with a damping sleeve 34. When the second reel 30 needs to be disassembled, it is only necessary to push the second reel 30 along its axial direction so that the damping sleeves 34 at both ends thereof are both out of the third shaft hole 123 and the fourth shaft hole.

[0073] Please refer to Figures 1 to 4 In one embodiment, optionally, the base 10 includes a mounting frame 10a and an air inlet grille 10b detachably connected to the mounting frame 10a, and the mounting cavity 12 is formed between the air inlet grille 10b and the mounting frame 10a. In this way, the reel in the mounting cavity 12 can be exposed by simply removing the air inlet grille 10b from the mounting frame 10a, thereby facilitating the user to install or remove the reel. Specifically, optionally, the air inlet grille 10b can be detachably mounted on the mounting frame 10a by screwing or snapping, and the present application does not make specific limitations on this. Of course, in other embodiments, the mounting frame 10a and the air inlet grille 10b can also be fixedly connected, and the mounting frame 10a is provided with an assembly through hole at a position corresponding to the mounting cavity 12, and the assembly through hole can allow the removed reel to pass out and the new reel to pass in.

[0074] Please refer to Figures 1 to 4 In one embodiment, optionally, the filter device further includes a dust collecting member 60 disposed on the base 10, and the dust collecting member 60 is connected to the lower side of the installation cavity 12 corresponding to the first reel 20. In this way, when the first reel 20 reels the used filter 40, foreign matter such as dust and lint on the filter 40 can fall into the dust collecting member 60, and the risk of the first reel 20 being disturbed by foreign matter and unable to rotate normally can be reduced. Of course, in other embodiments, the dust collecting member 60 may not be provided, and the space inside the installation cavity 12 may be directly used to collect dust on the filter 40, and the installation cavity 12 may be cleaned as necessary by removing the air inlet grille 10b.

[0075] In one embodiment, optionally, the dust collecting member 60 is detachably connected to the base 10. In this way, it is convenient for the user to regularly collect the dust collecting member 60, so as to avoid the dust collecting member 60 accumulating too much dust, and the dust inside the dust collecting member 60 instead escaping from the dust collecting member 60 and contaminating the filter 40 part located in the air inlet channel 11, and even contaminating the filter 40 part located on the second reel 30. Further optionally, the housing of the air conditioner indoor unit is provided with a disassembly opening corresponding to the dust collecting member 60, and the dust collecting member 60 can complete its own installation and disassembly without removing the housing of the air conditioner indoor unit, thereby further facilitating the user to regularly clean the dust collecting member 60. Of course, in other embodiments, the base 10 can also be detachably connected to the housing of the air conditioner indoor unit, so that the user can disassemble the entire base 10 from the air conditioner indoor unit and clean the dust collecting member 60 therein.

[0076] In one embodiment, optionally, the dust collecting member 60 is configured as a dust collecting box, and the box opening of the dust collecting box is arranged below the installation cavity 12. In this way, the dust collecting box has good structural strength and rigidity, which can not only well maintain the shape structure and the volume therein, but also facilitate the user to apply force thereto to complete the installation and removal actions. Further optionally, the side wall of the installation frame 10a is provided with an installation opening connected to the installation cavity 12, and the dust collecting box is pulled out and arranged in the installation opening to further improve the convenience of disassembly and assembly of the dust collecting box. Of course, in other embodiments, the dust collecting member 60 can also be configured as a dust collecting bag with a bag-like structure.

[0077] The present invention also proposes an air conditioner, comprising the aforementioned filtering device. The specific structure of the filtering device refers to the above-mentioned embodiment. Since the air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0078] Specifically, the air conditioner includes a casing, and the filter device is arranged inside the casing, that is, the filter device is entirely contained in the casing and not exposed to the outside, thereby improving the aesthetics of the air conditioner. Of course, in other embodiments, the filter device may also be partially exposed outside the casing.

[0079] The present invention also provides a filter device control method, which is applied to the aforementioned filter device, please refer to Fig.10 , Fig.10The present invention is a schematic diagram of the structure of the filtering device of the hardware operating environment involved in the embodiment of the present invention. The filtering device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0080] Those skilled in the art will understand that Fig.10 The structure shown in the figure does not constitute a limitation on the filtering device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0081] like Fig.10 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and a filtering device control program. Fig.10 In the filtering device shown, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the filtering device of the present invention can be set in the filtering device, and the filtering device calls the filtering device control program stored in the memory 1005 through the processor 1001 (i.e., the controller), and executes the steps of the filtering device control method provided in the embodiment of the present invention.

[0082] Please refer to Fig.11 In the first embodiment of the filter device control method of the present invention, the filter device control method includes steps S110 and S120, which are as follows:

[0083] Step S110: receiving a filter replacement signal.

[0084] Specifically, the filter replacement means that the filter device drives the first reel to rotate using the driving module, so that the original filter on the air inlet channel can be rolled up on the first reel, and the new filter on the second reel can be pulled onto the air inlet channel, thereby completing the replacement of the filter in the air inlet channel. The filter replacement signal can be either a user's instruction or automatically generated by the air conditioner processor when executing a program.

[0085] Step S120: controlling the driving module of the filtering device to operate so that the first reel rotates at a target angle α.

[0086] Specifically, when the first reel rotates by the target angle α, at least the old filter on the air inlet channel is rolled into the first reel, that is, at least the filter on the air inlet channel is replaced. It should be noted that the target angle α of the first reel during each filter replacement operation can be either always kept constant or changed according to the increase in the number of filter replacements.

[0087] In the technical solution of the present invention, when the filter part located on the air inlet channel has been working for a certain period of time, its filtering effect is significantly reduced. The driving module can drive the first reel to rotate the target angle α according to the filter replacement signal, so that the old filter on the air inlet channel can be rolled up on the first reel, and the new filter on the second reel can be pulled onto the air inlet channel, thereby completing the replacement of this part of the filter in the air inlet channel. In this way, the problem of poor air intake capacity caused by scaling and dirt blockage of the filter can be conveniently solved.

[0088] In the embodiment of the present invention, preferably, the target angle α decreases as the number of times the filter is replaced increases. It can be understood that as the filter is used, the winding diameter of the filter on the first reel will gradually increase, and the winding diameter of the filter on the second reel will gradually decrease, such as Figures 4 to 6 As shown in the figure, according to the circumference formula, when the circumference remains unchanged and the winding diameter increases, the angle that the first reel needs to rotate will gradually decrease. The rotation angle of the first reel is linearly related to the rotation angle of the motor (i.e., the drive member) shaft, so the rotation angle of the first reel can be expressed by the rotation angle of the motor shaft. Therefore, in order to avoid the first reel from rolling up the filter too much every time the filter is replaced, causing waste of the new filter on the second reel, the rotation angle of the motor shaft is configured to decrease as the number of times the filter is replaced increases.

[0089] Specifically, in an embodiment where the driving module includes a driving gear and a driven gear, the transmission ratio of the driving gear and the driven gear is configured to be 1:1, and the rotation angle of the motor shaft is equal to the rotation angle of the first scroll. Of course, in other embodiments, the transmission ratio between the motor shaft and the first scroll can also be configured to other values, such as 1:2 or 3:1, and this application does not specifically limit this.

[0090] Define the width of the air inlet channel as W, then the single length of the first scroll required to be wound each time the filter is replaced is W; define the initial diameter of the first scroll as R1 (the first scroll is in an unloaded state at this time), then the initial angle of the motor shaft is α1 = W / R1; define the terminal diameter of the first scroll as R m (At this time, the second reel is in an unloaded state, that is, the new filter is used up), and the total length of a whole roll of filter is L, then the total number of times the whole roll of filter can be replaced is m = L / W, and the end angle α of the motor shaft at the last filter replacement action is m =W / R m ; Since R1 is smaller than R m , then α1 is greater than α m It should be noted that the initial angle α1 and the final angle α m , and target angle α are all in radians.

[0091] In some embodiments, the target angle α is set in an arithmetic progression related to the initial angle α1 and the number of times of replacement n, and satisfies the formula α=α1+(n-1)*d; wherein n is a positive integer, and the tolerance d of the arithmetic progression is set to be less than 0. In this way, the degree of waste caused by the first reel additionally rolling up the new filter can be reduced. Of course, in other embodiments, the target angle α may not be configured as an arithmetic progression, but may decrease in a regular manner as the number of times of replacement n increases. For example, the target angle α and the number of times of replacement n satisfy a parabolic equation or an elliptical equation.

[0092] In some embodiments, the tolerance d of the arithmetic progression is related to the initial angle α1, the final angle α m , the total number of times that can be replaced is related to m, and satisfies the formula d = (α m -α1) / (m-1). In this way, the setting of the tolerance d can be more consistent with the actual structural parameters of the filter device, and can make the target angle α each time the filter is replaced closer to the ideal value, that is, the first reel can just reel in the old filter on the air inlet channel each time the filter is replaced, and does not additionally reel in the new filter output from the second reel, thereby further reducing the waste of the new filter. It can be understood that the present application does not limit the tolerance d of the arithmetic sequence to be calculated only by the above formula. In other embodiments, the tolerance d of the arithmetic sequence can also be other preset constant values.

[0093] It can be understood that after the structural parameters of the filter device are determined, the above-mentioned single length W, total length L, initial diameter R1 and final diameter R m All the conditions are known, so the total number of times m, tolerance d, initial angle α1 and final angle α can be calculated. m , and when n=1, assign α=α1. When the filter device receives a filter replacement signal, after the motor shaft drives the first reel to rotate the target angle α, the processor assigns the replacement times n=n+1, and assigns the target angle α=α1+(n-1)*d according to the new replacement times n, so as to prepare for the next filter replacement.

[0094] In the second embodiment of the filter device control method of the present invention, based on the first embodiment of the filter device control method, the filter device control method further includes step S130 and step S140, which are as follows:

[0095] Step S130: Determine whether the number of replacement times n reaches a preset number of times C, and the preset number of times C is less than the total number of replacement times m.

[0096] Optionally, in this embodiment, the preset number of times C and the total number of times that can be replaced m satisfy the formula C=m-5, that is, when the preset number of times C accumulates to (m-5) times, it is determined that the filter is exhausted. In this way, the system deviation is corrected by reserving 5 times to avoid the system deviation caused by the accumulated error of the filter device after long-term operation. Of course, in other embodiments, it can also be C=m-4, or C=m-3, or C=m-2, etc. In some other embodiments, it can also be that the preset number of times C is equal to the total number of times that can be replaced m.

[0097] Step S140: If yes, control the filtering device to enter a sleep mode and send a reminder signal.

[0098] Specifically, the sleep mode means that the filter device no longer performs filter replacement. After the user replaces a whole roll of filter, the replacement times n=1 are reassigned, and the filter device is released from the sleep mode and performs filter replacement again.

[0099] It is understood that there are many ways to remind the user to replace the entire roll of filter. For example, in an embodiment where the air conditioner or the filter device is provided with a speaker or a buzzer, the reminder signal is configured as an audio signal and the speaker or the buzzer is used to remind the user. In an embodiment where the air conditioner is provided with a display screen, the reminder signal is configured as an image signal and the display screen is used to remind the user. In an embodiment where the air conditioner or the filter device is provided with a wireless communication module such as Wi-Fi, the reminder signal can be sent to a mobile smart terminal such as a mobile phone or a tablet computer of the user using the wireless communication module to remind the user. It is understood that the reminder signal can also be a free combination of the above multiple forms.

[0100] In this embodiment, when the number of replacement times n gradually accumulates to the preset number of times C, the user is reminded to promptly remove the old filter screen on the filter device and replace it with a new filter screen so that the filter screen part on the air inlet channel can maintain a good filtering effect. In this way, the intelligence of the filter device can be enhanced and the user experience can be improved.

[0101] In the third embodiment of the filter device control method of the present invention, based on the first embodiment of the filter device control method, the filter screen replacement signal includes a default replacement signal, and the filter device control method further includes steps S150 and S160, which are as follows:

[0102] Step S150: determining whether the current filter usage time t exceeds a preset period T.

[0103] Specifically, the current filter usage time t refers to the cumulative time calculated from the end of each filter replacement action, that is, the cumulative time starting from zero after the first scroll rotates to the current angle α. The preset period can be a default value set by the factory or set by the user according to actual needs. Specifically, the preset period T can be 30 days, 45 days, 60 days or 75 days, etc., and technicians in this field can choose according to design needs. For example, in southern urban areas in China, in order to avoid dust and scaling on the filter on the air inlet channel, the preset period T can be configured to 60 days.

[0104] Step S160: If yes, generate a default replacement signal.

[0105] In this embodiment, the filter device has a default replacement mode, and the filter replacement signal includes a default replacement signal corresponding to the default replacement mode setting, and the default replacement signal is automatically generated by the processor when executing the program. In the case where the user does not actively input a control instruction, the filter device generates a default replacement signal according to a preset period to control the first scroll to rotate to a target angle α corresponding to the number of replacement times n, thereby realizing the periodic replacement of the filter part in the air inlet channel, so that the filter part can maintain a good filtering effect and enhance the intelligence of the filter device.

[0106] It can be understood that if the current filter usage time t has not exceeded the preset period T, the usage time t will continue to be accumulated until the usage time t exceeds the preset period T. After the next filter replacement action is completed, the usage time t is automatically reset to zero and the accumulation time starts again.

[0107] Specifically, taking the preset cycle T as 60 days as an example, that is, the filter device performs a filter replacement action every 2 months. According to the normal use of the air conditioner, it is designed according to the requirement that a whole roll of filter nets can be used continuously for 10 years. Assuming that the single length of winding required for each filter net replacement is W=170mm, a total of 10200mm long filters are required in the default replacement mode. Assuming that the thickness of a single-layer filter net is 0.05mm, according to the internal layout space of a general air conditioner indoor unit, a cylindrical whole roll filter net with an inner diameter of 10mm and an outer diameter of 30mm can be arranged. The whole roll filter net can be wound with 200 layers of thick filters, that is, the total length of the filter net wound by the whole roll filter net is 12560mm, which is much larger than 10200mm. Therefore, the whole roll filter net can support the filter device to operate continuously for ten years in the default replacement mode, thereby significantly reducing the frequency of users replacing the whole roll filter net and improving the user experience.

[0108] In a fourth embodiment of the filter device control method of the present invention, based on the third embodiment of the filter device control method, the filter screen replacement signal further includes a direct replacement signal, and after the step of controlling the driving module of the filter device to operate so that the first scroll rotates the target angle α, the filter device control method further includes step S170:

[0109] Step S170: Reset the usage time t to zero.

[0110] Specifically, when the user actively inputs a control instruction, the processor generates a direct replacement signal according to the control instruction, and the filter device immediately performs a filter replacement action, regardless of whether the usage time t at this time exceeds the preset period T. Then, after the filter replacement action is completed, that is, after the first scroll rotates the target angle α, the usage time t is reset to zero to restart the accumulation of the usage time t. In this way, unnecessary waste of the filter can be avoided and the intelligence of the filter device can be enhanced. For example, taking the preset period T as 60 days as an example, assuming that the usage time t accumulates to 45 days, the user actively inputs a control instruction to make the filter device perform a filter replacement. If the processor continues to accumulate the usage time t, the filter device will perform another filter replacement on the 61st day, resulting in the actual usage time of the filter after the previous replacement being only 15 days, and its filtering effect is still in a good state and does not need to be replaced.

[0111] In this embodiment, by configuring the default replacement signal and the direct replacement signal at the same time, the filter device can not only automatically replace the filter according to the default program, but also support the user to actively input control instructions to directly replace the filter. That is, manual replacement and automatic replacement coexist, which can better meet the different usage requirements of different users for the filter and is more in line with the user's personal usage habits.

[0112] The present invention further provides a computer-readable storage medium on which a filter device control program is stored. When the filter device control program is executed by a processor, the steps of the aforementioned filter device control method can be executed.

[0113] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A filter device, applied to an air conditioner, characterized in that: The filtering device comprises: A base, provided with an air inlet passage; A reel, rotatably disposed on the base, the reel comprising a first reel and a second reel disposed on opposite sides of the air inlet channel; A filter screen is wound between the first reel and the second reel, and a portion of the filter screen is located in the air inlet passage; and The driving module is disposed on the base and can drive the first reel to rotate so as to retract the portion of the filter located in the air inlet channel.

2. The filtering device according to claim 1, characterized in that The base is provided with an installation cavity communicated with the air inlet channel, the reel is rotatably arranged in the installation cavity, and the driving module is arranged outside the installation cavity.

3. The filtering device according to claim 2, characterized in that The two opposite cavity walls of the installation cavity are respectively provided with a first axial hole and a second axial hole, the first reel comprises a first rotating part, a second rotating part and a first winding part which are connected in sequence, the first rotating part can be detachably installed in the first axial hole and is drivingly connected to the driving module, and the second rotating part can be detachably installed in the second axial hole.

4. The filtering device according to claim 3, characterized in that The driving module comprises a driving member, a driving gear disposed on a rotating shaft of the driving member, and a driven gear meshingly connected with the driving gear, the hub of the driven gear is rotatably disposed on the first shaft hole, and a limiting hole is disposed on an inner end surface of the hub of the driven gear, and the first rotating part is inserted into the limiting hole; And / or, the second rotating part is rotatably arranged in the second axial hole, the outer end of the second rotating part is exposed outside the installation cavity and is provided for manual tightening, and the inner end of the second rotating part extends into the installation cavity and is threadedly connected with the first retracting part.

5. The filtering device according to claim 2, characterized in that: The two opposite cavity walls of the installation cavity are respectively provided with a third axial hole and a fourth axial hole, the second reel comprises a third rotating part, a fourth rotating part and a second winding part connected in sequence, the third rotating part can be detachably installed in the third axial hole, and the fourth rotating part can be detachably installed in the fourth axial hole.

6. The filtering device according to claim 5, characterized in that The outer periphery of the third rotating part is provided with a damping sleeve, and the damping sleeve is rotatably arranged in the third shaft hole; And / or, the fourth rotating part is rotatably arranged in the fourth axial hole, the outer end of the fourth rotating part is exposed outside the installation cavity and is provided for manual tightening, and the inner end of the fourth rotating part extends into the installation cavity and is threadedly connected with the second winding part.

7. The filtering device according to claim 2, characterized in that: The filtering device further comprises a dust collecting member arranged on the base, and the dust collecting member is connected to the lower side of the installation cavity corresponding to the first reel.

8. The filtering device according to claim 7, characterized in that The dust collecting member is detachably connected to the base; And / or, the dust collecting member is configured as a dust collecting box, and a box opening of the dust collecting box is arranged below the installation cavity.

9. The filtering device according to claim 2, characterized in that: The base includes a mounting frame and an air inlet grille detachably connected to the mounting frame, and the mounting cavity is formed between the air inlet grille and the mounting frame.

10. An air conditioner, characterized in that: The filter comprises the filter device according to any one of claims 1 to 9.

11. A filter device control method, applied to the filter device according to any one of claims 1 to 9, characterized in that: The filter device control method comprises the steps of: Receive filter replacement signal; The driving module of the filtering device is controlled to operate so that the first reel rotates at a target angle α.

12. The filter device control method according to claim 11, characterized in that: The target angle α is set in an arithmetic progression related to the initial angle α1 and the number of renewals n, and satisfies the formula α=α1+(n-1)*d, and the tolerance d of the arithmetic progression is set to be less than 0.

13. The filter device control method according to claim 12, characterized in that: The tolerance d of the arithmetic progression is related to the initial angle α1 and the final angle α m , the total number of times that can be replaced is related to m, and satisfies the formula d = (α m -α1) / (m-1).

14. The filter device control method according to claim 13, characterized in that: The filter device control method further comprises the steps of: Determine whether the number of times n of replacement has reached a preset number C, wherein the preset number C is less than the total number of times m of replacement is possible; If so, the filtering device is controlled to enter a sleep mode and a reminder signal is sent.

15. The filter device control method according to claim 11, characterized in that: The filter replacement signal includes a default replacement signal, and the filter device control method further includes the steps of: Determine whether the current filter usage time t exceeds the preset period T; If so, the default renewal signal is generated.

16. The filter device control method according to claim 15, characterized in that: The filter screen replacement signal also includes a direct replacement signal. After the step of controlling the driving module of the filter device to operate so that the first reel rotates the target angle α, the filter device control method further includes the steps of: Reset the usage time t to zero.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a filter device control program, and when the filter device control program is executed by the processor, the steps of the filter device control method according to any one of claims 11 to 16 can be executed.

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