Filter screen using method and air conditioner

Abstract

The invention provides a filter screen using method and an air conditioner, and relates to the technical field of air conditioners. The filter screen using method is applied to the air conditioner, a filter screen of the air conditioner comprises a plurality of filter screen sections capable of shielding an air return opening in the first conveying direction, the filter screen sections of the upstream screen sections in the filter screen are all clean screen sections, and the filter screen sections of the downstream screen sections in the filter screen are all dirty screen sections, the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the tail end of the downstream network segment form a current network segment combination; the method comprises the steps that the current running state of the air conditioner is obtained; if the current operation state is a starting-up state, the net network segment in the current network segment combination is adjusted to shield the return air inlet; and if the current operation state is a shutdown state, the dirty network segment in the current network segment combination is adjusted to shield the return air inlet. According to the air conditioner, the dirty net section can be fully utilized, invalid blockage caused by dust settling to the clean net section in the shutdown state is effectively reduced, the replacement frequency of the filter net section is correspondingly reduced, and the service life of the filter net is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a filter using method and an air conditioner. Background Art

[0002] Air conditioners are widely used for temperature regulation in indoor environments. A filter is generally provided at the return air outlet of an existing indoor unit to filter the airflow entering the air duct, so as to reduce the blockage and damage to the air duct components caused by impurities and dust in the airflow, as well as the adverse effects on its heat exchange efficiency; however, in the prior art, when the air conditioner is in a shutdown state, the filter at the return air outlet is still exposed, and dust falls onto the filter, causing the filter to be ineffectively blocked, thereby affecting the service life of the filter. Summary of the invention

[0003] The purpose of the present invention includes providing a method for using a filter and an air conditioner to solve the technical problem that when the existing air conditioner is in a shutdown state, the filter at the return air outlet is still in an exposed state, dust falls on the filter, causing the filter to be ineffectively blocked, thereby affecting the service life of the filter.

[0004] In order to solve the above problems, the present invention provides a method for using a filter screen, which is applied to an air conditioner, wherein the filter screen of the air conditioner includes a plurality of filter screen segments that can block the return air outlet along a first transmission direction, and the filter screen segments of the upstream network segment in the filter screen are all clean network segments, and the filter screen segments of the downstream network segment are all dirty network segments, wherein the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the end of the downstream network segment constitute a current network segment combination; the method comprises:

[0005] Obtaining the current operating status of the air conditioner;

[0006] If the current operating state is the power-on state, adjusting the clean network segment in the current network segment combination to block the return air outlet;

[0007] If the current operating state is a shutdown state, the dirty network segment in the current network segment combination is adjusted to block the return air outlet.

[0008] The filter usage method provided by the present invention is that when the air conditioner is in the on state, the driving component correspondingly drives the clean network segment in the current network segment combination to move to the blocking position blocking the return air outlet, and the other filter segments are located in the avoidance position avoiding the return air outlet. The airflow flowing through the return air outlet needs to be filtered by the clean network segment first before entering the air duct, thereby ensuring the normal operation of the air conditioner and realizing the filtering processing of the airflow by the clean network segment. When the air conditioner is in a shutdown state, the driving component correspondingly drives the dirty network segment in the current network segment combination to move in the opposite direction along the second transmission direction to the blocking position blocking the return air outlet, and the dust settling downward in the area above the return air outlet correspondingly settles to the top surface of the dirty network segment, thereby reducing the blockage of the air duct components caused by dust falling into the air duct through the return air outlet, and the dirty network segment can be fully utilized without the need to set up additional baffles, etc., which can effectively reduce the invalid blockage caused by dust settling to the clean network segment in the shutdown state, thereby correspondingly improving the effective utilization of the clean network segment, reducing the replacement frequency of the filter segment, further extending the service life of the filter, reducing the filter cost, and improving the convenience of using the filter assembly and the air conditioner.

[0009] Optionally, if the degree of dirtiness and congestion of the clean network segment in the current network segment combination is greater than a preset degree of dirtiness and congestion, the clean network segment in the current network segment combination is divided into dirty network segments and included in the downstream network segments, and after the division, the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the end of the downstream network segment form a new current network segment combination.

[0010] The present invention also provides an air conditioner capable of executing the above method, the air conditioner comprising a housing provided with a return air outlet and a filter assembly, the filter assembly comprising a driving component and a filter, the filter comprising a plurality of filter segments along a first transmission direction capable of shielding the return air outlet, and the filter segments of the upstream segments of the filter are all clean segments, and the filter segments of the downstream segments are all dirty segments; the driving component is used to drive the filter to be transmitted along the first transmission direction or a second transmission direction opposite to the first transmission direction. The air conditioner can execute the above filter use method and has all the beneficial effects of the method, which will not be repeated here.

[0011] Optionally, the driving component comprises a main scroll and an auxiliary scroll which are rotatably connected to the housing and located at opposite sides of the return air outlet, and one end of the filter is wound around the main scroll and the other end is wound around the auxiliary scroll;

[0012] The driving component also includes a driving member and an elastic reset member arranged on the shell, the driving member is connected to the main scroll and is used to drive the main scroll to rotate; the elastic reset member is connected to the auxiliary scroll and is used to drive the auxiliary scroll to wind the filter.

[0013] Optionally, the shell is provided with a accommodating box, and the first end of the auxiliary reel is rotatably inserted into the accommodating box; the elastic return member includes a coil spring, the coil spring is accommodated in the accommodating box and is sleeved on the auxiliary reel, and the inner end of the coil spring is connected to the auxiliary reel, and the outer end is connected to the accommodating box.

[0014] Optionally, the accommodating box is fixed to the shell, the accommodating box is a cylindrical box and is coaxially arranged with the secondary reel, the accommodating box is provided with a clamping portion, and the outer end of the coil spring is provided with an external clamping arm clamped to the clamping portion, wherein when the elastic restoring force of the coil spring is greater than a preset elastic force, the external clamping arm disengages from the clamping portion, and when the external clamping arm slides around the circumference of the accommodating box to the clamping portion again, it is re-clamped to the clamping portion.

[0015] Optionally, in both the annular side periphery of the accommodating box and one of the end covers, the clamping portion includes a clamping groove, a clamping hole or a boss provided in one of them.

[0016] Optionally, the accommodating box includes a box body and a top cover, the box body is fixed to the shell and has a plug-in portion at the bottom, the top cover is fixed to the auxiliary scroll, and the first end of the auxiliary scroll is rotatably plugged into the plug-in portion, and the top cover seals the box opening of the box body; the clamping portion is located on the box body.

[0017] Optionally, the clamping portion includes a clamping hole provided on the annular side periphery of the box body, and the clamping hole extends along the axial direction of the annular side periphery and passes through the end surface of the annular side periphery facing the box opening.

[0018] Optionally, a first end surface of the secondary reel is provided with a slot, and at least one end of the slot is through-set; the inner end of the coil spring is connected to an inner snap-fit ​​arm, and the inner snap-fit ​​arm is inserted into the slot from the through end of the slot.

[0019] Optionally, the plug-in portion includes a plug-in hole arranged at the top of the box body; both ends of the card slot are through-set, and the auxiliary reel includes two axial arms located on both sides of the card slot at the corresponding axis section of the card slot, and the first ends of the two axial arms are provided with a buckle head, the axial arm is plugged into the plug-in hole, and the buckle head abuts against the outer end surface of the plug-in hole.

[0020] Optionally, the end surface of the top cover facing the box body is provided with a plurality of spherical protrusions spaced apart along its circumference, and the spherical protrusions abut against the end surface of the box opening of the box body.

[0021] Optionally, the shell is fixed with an arc-shaped boss segment, one circumferential end of the arc-shaped boss segment is connected to a coaxial arc-shaped movable segment, and a mounting opening is formed between the opposite ends of the arc-shaped movable segment and the arc-shaped boss segment, and the auxiliary reel is inserted into the inner hole of the ring surrounded by the arc-shaped boss segment and the arc-shaped movable segment through the mounting opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic flow chart of a method for using a filter screen provided by the present invention;

[0024] Figure 2 An exploded diagram of the air conditioner provided by the present invention;

[0025] Figure 3 A schematic diagram of the filter assembly in the air conditioner provided by the present invention being installed on the filter cover;

[0026] Figure 4 A partial schematic diagram of a coil spring connected between a receiving box and a secondary reel in an air conditioner provided by the present invention;

[0027] Figure 5 A partial schematic diagram of a filter cover in an air conditioner provided by the present invention from a first viewing angle;

[0028] Figure 6 A partial schematic diagram of a filter cover in an air conditioner provided by the present invention from a second viewing angle;

[0029] Figure 7 This is a schematic diagram of a top cover of an air conditioner provided by the present invention being fixedly mounted on a secondary scroll shaft.

[0030] Description of reference numerals:

[0031] 100-housing; 110-middle frame; 111-return air outlet; 120-filter cover; 121-arc boss section; 122-arc movable section; 123-installation port; 124-ring inner hole; 200-filter assembly; 210-filter; 220-main scroll; 230-auxiliary scroll; 231-slot; 232-axis arm; 233-buckle head; 240-coil spring; 241-external snap-on arm; 242-internal snap-on arm; 300-accommodation box; 310-bottom cover; 311-plug-in hole; 320-annular side; 321-slot; 330-top cover; 331-spherical convex. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] This embodiment provides an air conditioner, such as Figure 2 and Figure 3 As shown, the air conditioner includes a shell 100 provided with a return air outlet 111 and a filter assembly 200, the filter assembly 200 includes a driving component and a filter 210, the filter 210 includes a plurality of filter segments along a first transmission direction that can block the return air outlet 111, and the filter segments of the upstream segments in the filter are all clean segments, and the filter segments of the downstream segments are all dirty segments; the driving component is used to drive the filter to be transmitted along the first transmission direction or a second transmission direction opposite to the first transmission direction, so as to adjust different filter segments to block the return air outlet 111.

[0034] When in use, the filter is driven by the driving component to filter each filter segment in turn from the first end to the second end along the length direction of the filter, so as to conveniently realize the continuous and long-term use of the filter, reduce the frequency of filter replacement, and improve its convenience of use; wherein, the direction of the filter from the second end to the first end is its transmission direction, that is, the above-mentioned first transmission direction, and the filter segment near the first end of the filter that has been filtered and used to reach the preset dirty and blocked degree is used as the dirty segment, and all dirty segments together form the above-mentioned downstream segment; all filter segments other than the dirty segment in the filter are used as clean segments and together form the above-mentioned upstream segment, specifically including the filter segment near the second end that has not been filtered and the filter segment that has been filtered but has not reached the preset dirty and blocked degree. In addition, the first end of the filter is the head end of the downstream segment, and the second end is the end of the upstream segment.

[0035] Specifically, the filter assembly 200 can be installed inside the middle frame 110 of the shell 100, and the filter is located below the return air outlet 111; the filter assembly 200 can also be installed on the filter cover 120 that can be installed on the shell 100, and the filter is located below the filter cover 120 and above the return air outlet 111.

[0036] In view of the use of the air conditioner, this embodiment also provides a filter using method, wherein the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the end of the downstream network segment constitute the current network segment combination; Figure 1 The following is a flow chart of a method for using a filter screen according to an embodiment of the present invention. Figure 1 As shown, the method includes:

[0037] S102 obtains the current operating status of the air conditioner.

[0038] S104: If the current operation state is the power-on state, the clean network segment in the current network segment combination is adjusted to block the return air outlet 111.

[0039] The clean network segment in the current network segment combination is used for blocking and filtering the return air outlet 111. The upstream filter segments are all clean network segments that have not been filtered, and the downstream filter segments are all dirty network segments that have reached a preset degree of dirtiness and blockage. When the air conditioner is in the on state, it indicates that there is airflow flowing through the return air outlet 111, and the driving component accordingly drives the clean network segment in the current network segment combination to move to the blocking position blocking the return air outlet 111, and the other filter segments are located in the avoidance position avoiding the return air outlet 111. The airflow flowing through the return air outlet 111 needs to be filtered by the clean network segment first before entering the air duct, thereby ensuring the normal operation of the air conditioner and realizing the filtering of the airflow by the clean network segment.

[0040] S106: If the current operating state is the shutdown state, adjust the dirty network segment in the current network segment combination to block the return air outlet 111.

[0041] When the air conditioner is in a shutdown state, which may specifically include a standby state and a shutdown state, indicating that there is no airflow passing through the return air outlet 111, the driving component accordingly drives the dirty network segment in the current network segment combination to move in the opposite direction along the second transmission direction to a blocking position that blocks the return air outlet 111, and the dust that settles downward in the area above the return air outlet 111 settles to the top surface of the dirty network segment accordingly, thereby reducing the clogging of the air duct components caused by dust falling into the air duct through the return air outlet 111, and the dirty network segment can be fully utilized without the need to additionally set up a baffle, etc., which can effectively reduce the invalid clogging caused by dust settling on the clean network segment during the shutdown state, thereby correspondingly improving the effective utilization of the clean network segment, reducing the replacement frequency of the filter segment, further extending the service life of the filter, reducing the filter cost, and improving the convenience of using the filter assembly 200 and the air conditioner.

[0042] When the air conditioner is turned on and running, the driving component drives the clean network segment in the current network segment combination to move to the blocking position blocking the return air outlet 111 again, thereby achieving effective filtering of the airflow passing through the return air outlet 111.

[0043] In this embodiment, if the degree of dirtiness and congestion of the clean network segment in the current network segment combination is greater than the preset degree of dirtiness and congestion, the clean network segment in the current network segment combination is divided into a dirty network segment and included in the downstream network segment, and after the division, the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the end of the downstream network segment form a new current network segment combination. As the clean network segment in the current network segment combination is used for filtering, its degree of dirtiness and blockage continues to increase. When its degree of dirtiness and blockage is greater than the preset degree of dirtiness and blockage, it indicates that the clean network segment is heavily blocked by dust, and the dust filtering effect is poor. At the same time, it causes the ventilation volume of the return air port 111 to be small, which has a greater impact on the temperature regulation efficiency of the air conditioner. At this time, the clean network segment is divided into a dirty network segment and belongs to the downstream network segment and is located at the end of the downstream network segment. Accordingly, the clean network segment adjacent to the newly divided dirty network segment is used as the clean network segment at the head end of the upstream network segment, and the newly divided dirty network segment and the clean network segment adjacent to it are used as the new current network segment combination. According to the current operating state of the air conditioner, the blocking of the return air port 111 by the clean network segment and the dirty network segment in the current network segment combination is changed to realize the alternating use of the filter segment along the first transmission direction.

[0044] Specifically, the degree of dirtiness and blockage of the filter segment can be characterized according to the ventilation volume of the filter or the amount of dust on the filter.

[0045] Specifically, in this embodiment, Figure 3 As shown, the driving component includes a main scroll 220 and a secondary scroll 230 which are rotatably connected to the shell 100 and are located on opposite sides of the return air outlet 111. One end of the filter is wound around the main scroll 220 and the other end is wound around the secondary scroll 230. The driving component also includes a driving member and an elastic reset member which are arranged on the shell 100. The driving member is connected to the main scroll 220 and is used to drive the main scroll 220 to rotate. The elastic reset member is connected to the secondary scroll 230 and is used to drive the secondary scroll 230 to wind the filter. Here is one specific form of the filter assembly 200. Initially, all filter segments of the filter are clean segments. The first end of the filter is connected to the main scroll 220. The first filter segment located at the first end blocks the return air outlet 111, and the remaining filter segments are all wound on the auxiliary scroll 230. At this time, the elastic reset member is preferably in an elastic tensioned state to tension the first filter segment together with the driving member; as use progresses, when the first filter segment reaches a preset degree of dirtiness and becomes a dirty segment, the dirty segment serves as a downstream segment, and the remaining clean segments serve as upstream segments, and the dirty segment and the adjacent clean segment constitute the current segment combination, and the filter can then be adjusted and used using the above-mentioned method.

[0046] Specifically, when the air conditioner is in the on state, the driving member drives the main reel 220 to rotate and wind the dirty network segment in the current network segment combination thereon, and correspondingly pulls the adjacent clean network segment to be transmitted to the blocking position blocking the return air outlet 111, and the auxiliary reel 230 rotates and unwinds under the pulling action of the filter, and at the same time, the elastic reset member undergoes elastic deformation under the rotation of the auxiliary reel 230, and has an elastic reset tendency to drive the auxiliary reel 230 to reversely wind the filter, and the clean network segment is in a tensioned state under the reverse pulling action of the driving member and the elastic reset member, so as to ensure the effective blocking and filtering effect of the clean network segment on the return air outlet 111; when the air conditioner is switched to the off state, the driving member drives the main reel 220 The auxiliary reel 230 is rotated in reverse to unwind a dirty network segment. If the elastic restoring force applied by the elastic reset member to the auxiliary reel 230 is greater than the pulling force of the filter on the auxiliary reel 230, the elastic reset member drives the auxiliary reel 230 to rotate in reverse to wind the clean network segment until the clean network segment of the current network segment combination is wound around the auxiliary reel 230 and the dirty network segment reaches the blocking position of the return air outlet 111 along the second transmission direction. This reduces the pollution and blockage of the air duct components caused by dust falling into the air duct through the return air outlet 111, and can also reduce the ineffective blockage of the clean network segment caused by dust when the clean network segment is used to block the return air outlet 111, thereby improving the effective use efficiency of the clean network segment and extending the service life of the filter.

[0047] Specifically, the driving member may be a driving motor.

[0048] In this embodiment, Figure 3 and Figure 4 As shown, the shell 100 is provided with a accommodating box 300, and the first end of the auxiliary reel 230 is rotatably inserted into the accommodating box 300; the elastic return member includes a coil spring 240, which is accommodated in the accommodating box 300 and sleeved on the auxiliary reel 230, and the inner end of the coil spring 240 is connected to the auxiliary reel 230, and the outer end is connected to the accommodating box 300. The elastic reset member is specifically a coil spring 240. During use, when the air conditioner is in the on state, the driving member drives the main reel 220 to wind the dirty network segment, and the auxiliary reel 230 rotates and unwinds under the pulling action of the filter, and the inner end of the coil spring 240 rotates synchronously with the auxiliary reel 230 so that the winding degree of the coil spring 240 is continuously increased, thereby having a tendency to drive the auxiliary reel 230 to rotate in the opposite direction to wind the filter; when the air conditioner is in the off state, the driving member drives the main reel 220 to unwind in the opposite direction, and the coil spring 240 in the compressed state drives the auxiliary reel 230 to wind the filter in the opposite direction under its elastic reset action, thereby winding the clean network segment thereon, and the dirty network segment is correspondingly moved to the blocking position, and is in a tensioned state under the action of the driving member and the coil spring 240. In addition, the setting of the accommodating box 300 can accommodate the coil spring 240 therein to provide isolation and protection for it, and can limit its axial position to reduce the situation where the coil spring 240 is pulled axially and disconnected from the accommodating box 300 and the auxiliary reel 230, thereby ensuring the effective use of the coil spring 240 and the filter assembly 200.

[0049] Specifically, in this embodiment, Figure 4 As shown, the accommodating box 300 is fixed to the shell 100, the accommodating box 300 is a cylindrical box and is coaxially arranged with the secondary reel 230, the accommodating box 300 is provided with a clamping portion, and the outer end of the coil spring 240 is provided with an external clamping arm 241 clamped to the clamping portion, wherein, when the elastic restoring force of the coil spring 240 is greater than the preset elastic force, the external clamping arm 241 is disengaged from the clamping portion, and the external clamping arm 241 slides around the circumference of the accommodating box 300 again to the clamping portion and is clamped to the clamping portion again. The outer end of the coil spring 240 is movably connected to the clamping portion of the accommodating box 300. Specifically, when the inner end of the coil spring 240 rotates with the secondary reel 230 to cause the coil spring 240 to be wound up, the elastic force of the winding is transmitted to the outer clamping arm 241 and acts on the clamping portion. The clamping portion restricts the outer clamping arm 241 from moving in the direction of loosening the coil spring 240, so that the coil spring 240 is wound up and has an elastic recovery trend of loosening in the reverse direction. As the clean network segment is continuously divided into the dirty network segment, the pulling stroke of the main reel 220 on the secondary reel 230 through the filter screen is continuously increased. Correspondingly, the winding effect of the secondary reel 230 on the coil spring 240 is continuously enhanced. When the elastic force of the coil spring 240 due to the tightening is large, When the preset elastic force is reached, the outer clamping arm 241 is deformed under the pulling action of the elastic force and detaches from the clamping part and rotates in the direction of relaxation along with the outer end of the coil spring 240, corresponding to the circumferential rotation of the accommodating box 300. When the outer clamping arm 241 rotates to the clamping part again, since the winding degree of the coil spring 240 has been relaxed to a certain extent, its elastic restoring force is again less than the preset elastic force. Accordingly, the outer clamping arm 241 that has recovered the deformation is clamped to the clamping part again, thereby reducing the failure or even breaking of the coil spring 240 due to excessive winding degree, and the occurrence of the filter being torn or even broken, thereby realizing the cooperation between the driving member and the coil spring 240 to transmit the entire filter.

[0050] At the same time, compared with rotating the accommodating box 300 to be set on the shell 100, the limiting of the coil spring 240 and the relaxation of its pre-tightening force are achieved through the connection between the accommodating box 300 and the shell 100; in the air conditioner of this embodiment, the clamping limiting of the coil spring 240 and the relaxation of its pre-tightening force can be achieved only by setting a clamping part in the accommodating box 300, which has a simple structure and is easy to assemble.

[0051] Specifically, in this embodiment, the clamping part of the annular side 320 and one of the end covers of the accommodating box 300 includes a clamping groove 231, a clamping hole 321 or a boss provided on one of them. The clamping part can be a clamping groove 231 provided on the inner wall of the annular side 320, and the outer clamping arm 241 is inserted into the clamping groove 231 from the inside to the outside. The clamping groove 231 limits the movement of the outer clamping arm 241 along the circumferential direction of the annular side 320 and the coil spring 240 to achieve clamping and limiting the outer clamping arm 241; when the coil spring 240 is wound too tightly, the elastic restoring force applied by its outer end to the outer clamping arm 241 along the circumferential direction is greater than the preset elastic force, so that the connection between the outer clamping arm 241 and the outer end or the outer clamping arm 241 is deformed and self-locked from the clamping groove 231, and then slides around the circumference of the annular side enclosure 320 for one circle under the relaxation and recovery action of the coil spring 240, until the outer clamping arm 241 slides to the clamping slot 231 again and clamps into the clamping slot 231 again; similarly, the clamping slot 231 can also be in the form of a clamping hole 321 or a boss, and the number of the clamping parts can be one, or can be a plurality of clamping parts arranged at intervals along the circumference of the accommodating box 300; in addition to being provided on the inner wall of the annular side enclosure 320, the clamping part can also be provided on one of the end covers, and its principle is the same as the above-mentioned illustrative description, which will not be repeated here.

[0052] In this embodiment, Figure 3-Figure 7As shown, the accommodating box 300 includes a box body and a top cover 330. The box body is fixed to the shell 100 and a plug-in portion is provided at the bottom thereof. The top cover 330 is fixed to the auxiliary reel 230, and the first end of the auxiliary reel 230 is rotatably plugged into the plug-in portion, and the top cover 330 seals the box opening of the box body; the clamping portion is located on the box body. The box body includes an annular side enclosure 320 and a bottom end cover 310, and the top end cover 330 is separately arranged from the box body and fixedly connected to the auxiliary reel 230 and is integrally arranged therewith. Compared with the accommodating box 300 and the coil spring 240 being assembled as a whole, the coil spring 240 is difficult to be seen from the outside, and when the auxiliary reel 230 and the accommodating box 300 are rotated and plugged, it is also necessary to realize the connection with the inner end of the coil spring 240, and the coil spring 240 itself has elastic deformation, and the position of its inner end is also difficult to fix, resulting in greater difficulty in assembling the auxiliary reel 230 and the accommodating box 300. When the accommodating box 300 and the auxiliary reel 230 of this embodiment are assembled, the inner end of the coil spring 240 is connected to the auxiliary reel 230, and the coil spring 240, the top end cover 330 and the auxiliary reel 230 form an integral part. , move the auxiliary reel 230 to align its first end and plug it into the plug-in part, thereby realizing the coaxial rotation connection between the auxiliary reel 230 and the box body; accordingly, the coil spring 240 and the top cover 330 move synchronously with the auxiliary reel 230, and when the plug-in cooperation between the auxiliary reel 230 and the plug-in part is completed, the top cover 330 simultaneously completes the sealing of the box body opening, and accommodates the coil spring 240 in the accommodating box 300, and then rotates the auxiliary reel 230 circumferentially to drive the coil spring 240 and the outer clamping arm 241 at its outer end to slide along the circumference of the box body until it is clamped in the clamping part, thereby synchronously completing the coaxial rotation connection between the auxiliary reel 230 and the box body, the sealing of the box body by the top cover 330, and the clamping of the coil spring 240 and the clamping part, which is convenient to operate and highly practical.

[0053] Specifically, in this embodiment, Figure 6 As shown, the clamping portion includes a clamping hole 321 provided on the annular side circumference 320 of the box body, and the clamping hole 321 extends along the axial direction of the annular side circumference 320 and penetrates the end surface of the annular side circumference 320 facing the box opening. The annular side enclosure 320 is provided with an open latching hole 321 as a latching portion. When the accommodating box 300 and the auxiliary reel 230 are assembled, the coil spring 240 and the latching hole 321 are both exposed, so that the circumferential positions of the two can be easily identified and aligned. Then the auxiliary reel 230 is moved axially, and the outer latching arm 241 is latched into the latching hole 321 through the opening as the auxiliary reel 230 moves axially. As the auxiliary reel 230 continues to move axially, the outer latching arm 241 slides along the latching hole 321 until the first end of the auxiliary reel 230 is plugged into the plug-in portion, and the top cover 330 synchronously covers the box opening, that is, only the auxiliary reel 230 needs to be moved axially to simultaneously realize the rotational plugging of the auxiliary reel 230 and the plug-in portion, the latching of the outer latching arm 241 and the latching hole 321, and the sealing of the box opening by the top cover 330, thereby further improving the assembly convenience of the auxiliary reel 230.

[0054] In this embodiment, Figure 4 and Figure 7 As shown, the first end face of the secondary reel 230 is provided with a slot 231, and at least one end of the slot 231 is through-set; the inner end of the coil spring 240 is connected with an inner snap-in arm 242, and the inner snap-in arm 242 is inserted into the slot 231 from the through end of the slot 231. This is one of the specific forms in which the inner end of the coil spring 240 is connected to the secondary reel 230. During installation, the inner snap-in arm 242 can be inserted into the slot 231 from the through end of the slot 231 to achieve the connection between the two, and the operation is more convenient; specifically, the slot 231 can pass through the center of the first end face, and both ends of the slot 231 are through-set, so that the inner snap-in arm 242 can be inserted from any end of the slot 231, and the assembly is more convenient, and there is no limit on the length of the inner snap-in arm 242.

[0055] Specifically, in this embodiment, Figure 3 As shown, the plug-in portion includes a plug-in hole 311 arranged at the top of the box body; both ends of the card slot 231 are through-set, and the auxiliary reel 230 at the corresponding axis section of the card slot 231 includes two shaft arms 232 located on both sides of the card slot 231, and the first ends of the two shaft arms 232 are provided with a buckle head 233, the shaft arms 232 are plugged into the plug-in hole 311, and the buckle head 233 abuts against the outer end surface of the plug-in hole 311. The through slots 231 at both ends separate the corresponding shaft sections of the auxiliary reel 230 into two shaft arms 232. On the one hand, the inner clamping arm 242 can be plugged into the slot 231 from the notch or any open end of the slot 231, which makes the clamping more convenient. On the other hand, the setting of the slot 231 can provide radial deformation space for the two shaft arms 232. When the shaft arms 232 are plugged into the plug-in hole 311, when the buckle head 233 is squeezed by the wall of the plug-in hole 311, the shaft arms 232 can deform toward each other to facilitate the buckle head 233 to pass through the plug-in hole 311. Then, the shaft arms 232 return to their deformation, and the buckle head 233 abuts against the outer end surface of the plug-in hole 311, thereby achieving the buckle fit between the first end of the auxiliary reel 230 and the plug-in hole 311, improving the connection firmness of the two, and also improving the convenience of plugging the two.

[0056] In this embodiment, Figure 3 and Figure 7 As shown, the end face of the top cover 330 facing the box body is provided with a plurality of spherical protrusions 331 arranged at intervals along the circumference thereof, and the spherical protrusions 331 abut against the end face of the box opening of the box body. The convex spherical surface is approximately in point contact with the end face of the box opening of the box body, and the top cover 330 abuts against the end face of the box opening through the plurality of spherical protrusions 331, and the two are only in multiple point contact, with a small contact area and a small relative rotational friction resistance, thereby reducing the rotational resistance of the auxiliary scroll 230 under the pulling action of the driving member and the filter screen and the elastic recovery action of the elastic reset member, and correspondingly reducing the driving load of the driving member and the elastic reset member, and reducing the occurrence of the filter screen being torn.

[0057] Specifically, in this embodiment, Figure 5 As shown, the shell 100 is fixed with an arc-shaped boss section 121, one circumferential end of the arc-shaped boss section 121 is connected to a coaxial arc-shaped movable section 122, and a mounting opening 123 is formed between the opposite ends of the arc-shaped movable section 122 and the arc-shaped boss section 121; the auxiliary reel 230 is inserted into the inner ring hole 124 of the annular boss through the mounting opening 123. When installing the auxiliary reel 230, first, the first end of the auxiliary reel 230 is plugged into the accommodating box 300. At this time, under the abutment and limiting action of the box body and the top cover 330, the auxiliary reel 230 cannot continue to move axially toward the accommodating box 300; then, the second end of the auxiliary reel 230 is moved from the outside of the installation opening 123 toward the installation opening 123. The width of the installation opening 123 is smaller than the diameter of the auxiliary reel 230. Then, the free end of the arc-shaped movable segment 122 expands outward under the squeezing action of the auxiliary reel 230 until the auxiliary reel 230 is squeezed into the inner hole 124 of the ring. The arc-shaped movable segment 122 returns to its original state and together with the arc-shaped boss segment 121 limits the second end of the auxiliary reel 230, thereby realizing the rotational connection between the second end of the auxiliary reel 230 and the shell 100.

[0058] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for using a filter, characterized in that: Applied to an air conditioner, the filter screen (210) of the air conditioner comprises a plurality of filter screen segments along a first transmission direction capable of shielding a return air outlet (111), and the filter screen segments of the upstream network segment in the filter screen are all clean network segments, and the filter screen segments of the downstream network segment are all dirty network segments, wherein the clean network segment located at the head end of the upstream network segment and the dirty network segment located at the end of the downstream network segment constitute a current network segment combination; the method comprises: Obtaining the current operating status of the air conditioner; If the current operating state is the power-on state, adjusting the clean network segment in the current network segment combination to block the return air outlet (111); If the current operating state is a shutdown state, the dirty network segment in the current network segment combination is adjusted to block the return air outlet (111).

2. The method according to claim 1, characterized in that If the degree of dirtiness and congestion of the clean network segment in the current network segment combination is greater than the preset degree of dirtiness and congestion, the clean network segment in the current network segment combination is divided into a dirty network segment and included in the downstream network segment, and after the division, the clean network segment at the head end of the upstream network segment and the dirty network segment at the end of the downstream network segment form a new current network segment combination.

3. An air conditioner, characterized in that: The method according to claim 1 or 2 can be performed, wherein the air conditioner comprises a shell (100) provided with a return air outlet (111) and a filter assembly (200), the filter assembly (200) comprises a driving component and a filter (210), the filter (210) comprises a plurality of filter segments along a first transmission direction capable of blocking the return air outlet (111), and the filter segments of the upstream segments of the filter are all clean segments, and the filter segments of the downstream segments are all dirty segments; the driving component is used to drive the filter to be transmitted along the first transmission direction or a second transmission direction opposite to the first transmission direction.

4. The air conditioner according to claim 3, characterized in that: The driving component comprises a main scroll (220) and a secondary scroll (230) which are rotatably connected to the housing (100) and located on opposite sides of the return air port (111); one end of the filter is wound around the main scroll (220) and the other end is wound around the secondary scroll (230); The driving component also includes a driving member and an elastic reset member arranged on the housing (100); the driving member is connected to the main scroll (220) and is used to drive the main scroll (220) to rotate; the elastic reset member is connected to the auxiliary scroll (230) and is used to drive the auxiliary scroll (230) to wind up the filter.

5. The air conditioner according to claim 4, characterized in that: The shell (100) is provided with a accommodating box (300), and the first end of the auxiliary reel (230) is rotatably plugged into the accommodating box (300); the elastic return member includes a coil spring (240), the coil spring (240) is accommodated in the accommodating box (300) and sleeved on the auxiliary reel (230), and the inner end of the coil spring (240) is connected to the auxiliary reel (230), and the outer end is connected to the accommodating box (300).

6. The air conditioner according to claim 5, characterized in that: The accommodating box (300) is fixedly arranged on the shell (100), the accommodating box (300) is a cylindrical box and is coaxially arranged with the auxiliary reel (230), the accommodating box (300) is provided with a clamping portion, and the outer end of the coil spring (240) is provided with an external clamping arm (241) clamped to the clamping portion, wherein when the elastic restoring force of the coil spring (240) is greater than a preset elastic force, the external clamping arm (241) is separated from the clamping portion, and when the external clamping arm (241) slides around the circumference of the accommodating box (300) to the clamping portion again, it is clamped to the clamping portion again.

7. The air conditioner according to claim 6, characterized in that: In both the annular side periphery (320) of the accommodating box (300) and one of the end covers, the clamping portion comprises a clamping groove (231), a clamping hole (321) or a boss provided in one of them.

8. The air conditioner according to claim 6, characterized in that: The accommodating box (300) comprises a box body and a top cover (330), wherein the box body is fixedly mounted on the shell (100) and a plug-in portion is provided at the bottom thereof, the top cover (330) is fixedly mounted on the auxiliary reel (230), and the first end of the auxiliary reel (230) is rotatably plugged into the plug-in portion, and the top cover (330) seals the box opening of the box body; the clamping portion is located on the box body.

9. The air conditioner according to claim 8, characterized in that: The clamping portion comprises a clamping hole (321) provided on the annular side circumference (320) of the box body, wherein the clamping hole (321) extends along the axial direction of the annular side circumference (320) and passes through the end surface of the annular side circumference (320) facing the box opening.

10. The air conditioner according to claim 8, characterized in that: A first end surface of the secondary reel (230) is provided with a slot (231), and at least one end of the slot (231) is through-set; the inner end of the coil spring (240) is connected with an inner snap-fit ​​arm (242), and the inner snap-fit ​​arm (242) is inserted into the slot (231) from the through end of the slot (231).

11. The air conditioner according to claim 10, characterized in that: The plug-in portion comprises a plug-in hole (311) arranged at the top of the box body; both ends of the card slot (231) are through-set, and the shaft section corresponding to the card slot (231) of the auxiliary reel (230) comprises two shaft arms (232) located on both sides of the card slot (231), and the first ends of the two shaft arms (232) are provided with buckle heads (233), the shaft arms (232) are plugged into the plug-in hole (311), and the buckle heads (233) abut against the outer end surface of the plug-in hole (311).

12. The air conditioner according to claim 8, characterized in that: The end surface of the top cover (330) facing the box body is provided with a plurality of spherical protrusions (331) arranged at intervals along its circumference, and the spherical protrusions (331) abut against the end surface of the box opening of the box body.

13. The air conditioner according to any one of claims 4 to 12, characterized in that: The shell (100) is fixedly connected with an arc-shaped boss section (121), one circumferential end of the arc-shaped boss section (121) is connected with a coaxial arc-shaped movable section (122), a mounting opening (123) is formed between the ends of the arc-shaped movable section (122) and the arc-shaped boss section (121) facing away from each other, and the auxiliary reel (230) is inserted into the inner hole (124) of the ring surrounded by the arc-shaped boss section (121) and the arc-shaped movable section (122) through the mounting opening (123).

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