Air conditioner filter device, indoor unit, and operation method of indoor unit

Abstract

The application relates to the air conditioning technical field, and relates to an air conditioner filtering device, an indoor unit and an operation method of the indoor unit. The air conditioner filtering device comprises a cutting mechanism, a material moving mechanism, a replacement mechanism and a filter screen arranged at an air inlet of an air conditioner. The cutting mechanism is used for cutting a first filter section on the filter screen, and forms two cut ends on the cut filter screen. The material moving mechanism is used for moving the cut first filter section away from the filter screen. The replacement mechanism is used for feeding another first filter section between the two cut ends of the cut filter screen, so as to update the first filter section. According to the technical scheme of the application, the cutting mechanism, the material moving mechanism and the replacement mechanism are matched to cut, move away and replace the dirty or damaged first filter section, so that the dirty or damaged first filter section is updated, the filter screen as a whole does not need to be replaced, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, in particular to an air conditioner filtering device, an indoor unit and an operation method of the indoor unit. BACKGROUND

[0002] With the increasing demand of consumers on the performance and function of air conditioners, it is necessary to design novel and convenient air conditioners to meet the needs of users. The air conditioner inlet is provided with a filter screen for filtering the air entering the air conditioner. The filter screen is prone to dust accumulation after long-term use and needs to be cleaned in time. The cleaning process requires disassembly and installation of the filter screen, which is very inconvenient for users who do not understand the structure of the air conditioner. Not only is it time-consuming and laborious, but improper installation may also damage other parts of the air conditioner. At the same time, users often forget to clean the filter screen, which leads to too much dust on the filter screen, resulting in poor air quality, and may also cause noise, increased energy consumption and other problems.

[0003] The related art provides a solution for cleaning the filter screen at the air inlet. The filter screen can be automatically cleaned. When the filter screen cannot be cleaned after multiple cleanings, the filter screen can also be replaced as a whole. However, if only a certain section of the filter screen cannot be cleaned, replacing the filter screen as a whole will increase the cost and reduce the utilization rate of the filter screen. Therefore, this situation needs to be addressed. SUMMARY

[0004] Therefore, the present application provides an air conditioner filtering device, an indoor unit and an operation method of the indoor unit, which mainly solves the technical problem of how to replace the dirty section of the filter screen.

[0005] To achieve the above-mentioned purposes, the present application mainly provides the following technical solutions:

[0006] In a first aspect, the embodiments of the present application provide an air conditioner filtering device, which comprises a cutting mechanism, a material moving mechanism, a replacement mechanism and a filter screen arranged at the air inlet of an air conditioner;

[0007] The cutting mechanism is used to cut a first filter section on the filter screen, and forms two cut ends on the cut filter screen;

[0008] The material moving mechanism is used to move the cut first filter section away from the filter screen;

[0009] The replacement mechanism is used to send another first filter section between the two cut ends of the cut filter screen to update the first filter section.

[0010] In some embodiments, the air conditioner filter device further comprises a first driving mechanism for driving the filter screen to move.

[0011] In some embodiments, the filter screen is configured to drive two ends of the first filter section to move to a cutting station respectively, so that the cutting mechanism cuts the two ends of the first filter section respectively to cut the first filter section from the filter screen.

[0012] In some embodiments, the filter screen is further configured to drive the cut first filter section to move to a material moving station, so that the material moving mechanism moves the cut first filter section away from the filter screen.

[0013] In some embodiments, the material moving mechanism comprises a discharge port, and the cut first filter section is configured to move to the discharge port under the driving of the filter screen, so that the first filter section falls from the discharge port under the action of its own gravity to be moved away from the filter screen.

[0014] In some embodiments, the first driving mechanism comprises a rotatable transmission gear, the filter screen is annular, at least one side of the filter screen in the width direction has an annular tooth belt, and the transmission gear is engaged with the annular tooth belt.

[0015] The air conditioner filter device further comprises a first guide mechanism, and the transmission gear is configured to rotate to drive the filter screen to rotate along a track defined by the first guide mechanism through the annular tooth belt.

[0016] In some embodiments, the first guide mechanism comprises a guide rail, the guide rail is an annular guide rail matched with the outer shape of the filter screen, and the first guide mechanism guides the movement of the filter screen through cooperation of the annular guide rail and the annular tooth belt.

[0017] When the material moving mechanism comprises a discharge port, the discharge port is arranged on the annular guide rail.

[0018] In some embodiments, the filter screen has two opposite filter screen sections, and the two filter screen sections are configured to cover the air inlet of the air conditioner together; a plurality of mesh holes are arranged on each filter screen section in sequence and at intervals, and a grid strip is formed between any two adjacent mesh holes on each filter screen section.

[0019] The two filter screen sections are configured to move relatively under the driving of the filter screen, so that the mesh holes on the two filter screen sections are opposite to each other, or the mesh holes on the two filter screen sections are opposite to the grid strips on the other filter screen section.

[0020] In some embodiments, the air conditioner filter device further comprises a second driving mechanism and a cleaning mechanism, and the second driving mechanism is configured to drive the cleaning mechanism to move to the movement track of the filter screen to clean the filter screen.

[0021] In some embodiments, the air conditioner filter device further comprises a rotating member, the cleaning mechanism and the cutting mechanism are arranged on the rotating member, the second driving mechanism is configured to drive the rotating member to move to a set position, and the rotating member is configured to rotate to a first corner position or a second corner position at the set position; when at the first corner position, the cleaning mechanism is located on the movement track of the filter screen; when at the second corner position, the cutting mechanism is located at the cutting station.

[0022] In some embodiments, the replacement mechanism comprises a third driving mechanism configured to drive another first filter segment to move so as to send the another first filter segment between the two cut ends of the cut filter screen.

[0023] In some embodiments, when the air conditioner filter device comprises a ring-shaped guide rail, the ring-shaped guide rail is provided with a feeding port, and the another first filter segment is configured to be sent from the feeding port to between the two cut ends of the cut filter screen.

[0024] In some embodiments, the third driving mechanism comprises a feeding track and a rotatable feeding roller, the feeding port of the feeding track is connected with the feeding port, the another first filter segment is configured to be wound on the feeding roller, and the feeding roller is configured to drive the another first filter segment to enter the feeding port along the feeding track when rotating.

[0025] In some embodiments, the replacement mechanism further comprises a connecting mechanism, the two cut ends of the cut filter screen are a first cut end and a second cut end respectively;

[0026] The connecting mechanism is configured to connect one end of the another first filter segment to the first cut end and connect another end of the another first filter segment to the second cut end.

[0027] In some embodiments, when the air conditioner filter device comprises the first driving mechanism, the connecting mechanism comprises a gluing mechanism;

[0028] The first driving mechanism is configured to drive the cut filter screen to move the first cut end to a gluing station, so that the gluing mechanism glues the first cut end to form a gluing surface on the first cut end;

[0029] The another first filter segment is configured to be driven by the third driving mechanism to abut against the gluing surface with one end thereof, so that the one end of the another first filter segment is fixedly connected with the first cut segment.

[0030] In some embodiments, when one end of the another first filter section has been connected to the first cut end, the first driving mechanism is further configured to drive the cut filter screen to move the second cut end and the other end of the another first filter section to a gluing station, so that the gluing mechanism glues the gap between the second cut end and the other end of the another first filter section, and the connecting mechanism further comprises a pressing mechanism configured to press the glued second cut end and the other end of the another first filter section, so that the second cut end and the other end of the another first filter section are fixedly connected.

[0031] In a second aspect, embodiments of the present application further provide an indoor unit, which can comprise any of the air conditioner filter devices described above.

[0032] In a third aspect, embodiments of the present application further provide a method for operating an indoor unit, which comprises the step of cutting and updating the filter screen, and specifically comprises:

[0033] Step S1: cutting a first filter section on the filter screen, and forming two cut ends on the cut filter screen;

[0034] Step S2: removing the cut first filter section from the filter screen;

[0035] Step S3: feeding another first filter section between the two cut ends of the cut filter screen to update the first filter section.

[0036] In some embodiments, when the indoor unit comprises a cleaning mechanism, the method further comprises the following steps before step S1:

[0037] Step S11: detecting whether the running time of the filter screen is greater than a set value T1;

[0038] If yes, the indoor unit enters a cleaning mode, and the cleaning mechanism is used to clean the filter screen;

[0039] If no, the filter screen is detected for dirt blockage, and when the filter screen has dirt blockage, the indoor unit enters the cleaning mode, and the cleaning mechanism is used to clean the filter screen.

[0040] In some embodiments, when it is detected that the filter screen has no dirt blockage and the indoor unit is turned on, if the filter screen has two opposite filter screen sections, and the two filter screen sections are used to cover the air inlet of the air conditioner together, the filter screen is driven to move so that the mesh holes on the two filter screen sections are opposite to each other.

[0041] In some embodiments, when the filter screen has dirt blockage, and after the cleaning mechanism cleans the filter screen, the filter screen is again detected for dirt blockage, and if the filter screen still has dirt blockage, the step of cutting and updating the filter screen is entered; wherein the dirt blockage position is located on the first filter section.

[0042] In some implementations, the following steps are included before step S1:

[0043] The filter running time is checked to see if it is greater than a set value T2, where the set value T2 is greater than the set value T1;

[0044] If so, repeat the steps of cutting and updating the filter screen, updating it N times consecutively, where N is greater than or equal to 2; where each update involves different first filter segments connected sequentially on the filter screen, and the length of each first filter segment is L1, where L1 = L / N, and L is the length of the filter screen.

[0045] In some implementations, when the indoor unit is turned off, if the filter has two opposing filter segments and the two filter segments are used together to cover the air inlet of the air conditioner, the filter is driven to move so that the mesh on both filter segments is aligned with the grille strip on the other.

[0046] By employing the above technical solutions, the air conditioning filter device, indoor unit, and operating method of the indoor unit of the present invention have at least the following beneficial effects:

[0047] 1. The cutting structure, material transfer mechanism, and replacement mechanism work together to cut, remove, and replace the first filter section after it becomes dirty or damaged, thereby achieving the effect of updating the first filter section after it becomes dirty or damaged. Compared with the existing technology where the entire filter screen needs to be replaced when only a certain part of the filter screen becomes dirty or damaged, this invention can only update the dirty or damaged section of the filter screen, thus reducing costs and improving the utilization rate of the filter screen;

[0048] 2. The two filter segments work together to form a double-layer filter, effectively filtering the air at the inlet. When the air conditioner is running, the mesh openings on the two filter segments face each other, minimizing airflow reduction. When the air conditioner is not running, the mesh openings on both filter segments can be aligned with the grille bars on the other side, creating an alternating mesh pattern to block dust and prevent it from falling into the air conditioner through the mesh openings.

[0049] 3. The cleaning mechanism automatically cleans the dust on the filter screen, achieving the function of a filter screen that does not require cleaning.

[0050] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0051] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without any creative effort.

[0052] Figure 1 is a schematic view of a cutting mechanism provided by an embodiment of the present application when cutting a first filter section;

[0053] Figure 2 is a schematic view of a structure when a rotating member is located at an initial position;

[0054] Figure 3 is a schematic view of a rotating member rotated to a first angle position at a set position;

[0055] Figure 4 is a schematic view of a transmission gear cooperating with an annular tooth belt on a filter screen;

[0056] Figure 5 is a schematic view reflecting that a filter screen is assembled in an annular guide rail;

[0057] Figure 6 is Figure 5 is an enlarged schematic view of A in FIG. 12;

[0058] Figure 7 is a schematic view of filter screen mesh holes on two sections being opposite to each other;

[0059] Figure 8 is a schematic view of filter screen mesh holes on two sections being opposite to each other;

[0060] Figure 9 is a schematic view of a feeding track cooperating with an annular guide rail;

[0061] Figure 10 is a schematic view of a feeding roller feeding another first filter section;

[0062] Figure 11 is a schematic view reflecting that one end of another first filter section is fixedly bonded with a first cutting end;

[0063] Figure 12 is a control flowchart of an indoor unit.

[0064] The figure marks: 1, filter screen; 2, annular guide rail; 3, cutting mechanism; 4, cleaning mechanism; 5, rotating part; 6, first storage box; 7, limiting shaft; 8, transmission gear; 9, feeding rail; 10, feeding roller; 11, annular toothed belt; 12, second storage box; 13, gluing mechanism; 21, upper rail; 22, lower rail; 100, first cut end; 101, mesh; 102, grid bar; 201, discharge port; 202, feeding port; 1a, another first filter section. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0066] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0067] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0068] As shown in FIG. 1, one embodiment of the present application proposes an air conditioner filtering device, which comprises a cutting mechanism 3, a material moving mechanism, a replacement mechanism and a filter screen 1 arranged at the air inlet of an air conditioner. Figure 1 The aforementioned cutting mechanism 3 is used to cut a first filter section on the filter screen 1, and forms two cut ends on the cut filter screen 1. The first filter section can be a dirty block section or a damaged section, etc.

[0069] The aforementioned material moving mechanism is used to move the cut first filter section away from the filter screen 1.

[0070] The aforementioned material moving mechanism is used to move the cut first filter section away from the filter screen 1.

[0071] The replacement mechanism is used to send another first filter section 1a between the two cut ends of the cut filter screen 1 to update the first filter section. It should be noted that the another first filter section 1a and the first filter section can have the same structure. The difference is that the first filter section is dirty or damaged, while the another first filter section 1a is new and has no dirt or damage.

[0072] In the above example, the cooperation of the cutting structure, the moving mechanism, and the replacement mechanism can cut, move away, and replace the dirty or damaged first filter section, thereby achieving the effect of updating the dirty or damaged first filter section. Compared with the prior art, when only a part of the filter screen 1 is dirty or damaged, the entire filter screen 1 needs to be replaced. The present application can only update the dirty or damaged section of the filter screen 1, thereby reducing costs and improving the utilization rate of the filter screen 1.

[0073] The air conditioner filter device can further include a first driving mechanism for driving the filter screen 1 to move, so as to drive the filter screen 1 to move to the cutting station for cutting, or drive the cut first filter section to move away, or drive each part of the filter screen 1 to clean at the cleaning station, and the like.

[0074] In one example, when the first driving mechanism drives the filter screen 1 to move, the filter screen 1 is used to drive the two ends of the first filter section to move to the cutting station, respectively, so that the cutting mechanism 3 cuts the two ends of the first filter section, respectively, to cut the first filter section from the filter screen 1.

[0075] In the above example, the cutting mechanism 3 is located at the cutting station, and the first driving mechanism drives the filter screen 1 to move, so that the two ends of the first filter section on the filter screen 1 move to the cutting station, respectively. This facilitates the cutting mechanism 3 to cut the two ends of the first filter section, respectively, to cut the first filter section from the filter screen 1.

[0076] Preferably, the filter screen 1 is further used to drive the cut first filter section to move to the moving station, so that the moving mechanism moves the cut first filter section away from the filter screen 1.

[0077] It should be noted that the first filter section cut off can mean that both ends of the first filter section have been cut off from the filter screen 1, or that only one end of the first filter section has been cut off from the filter screen 1. When only one end of the first filter section has been cut off from the filter screen 1, the filter screen 1 can drive the cut end of the first filter section to move to the material moving station first, and then move out of the material moving station; then the cutting mechanism 3 cuts the other end of the first filter section, and the first filter section can move out of the material moving station under the action of its own gravity, or the first driving mechanism can continue to drive the filter screen 1 to move, so that the filter screen 1 drives the other cut end of the first filter section to move to the material moving station and then move out of the material moving station.

[0078] In a specific application example, as shown in Figure 1 The aforementioned material moving mechanism can include a discharge port 201, and the cut-off first filter section is used to move to the discharge port 201 under the drive of the filter screen 1, so that the first filter section falls from the discharge port 201 under the action of its own gravity to be removed from the filter screen 1.

[0079] In the above example, the cut-off first filter section is caused to fall from the discharge port 201 by using its own gravity, so as to achieve the effect of being removed from the filter screen 1, without the need for an additional power device to drive the first filter section to move, thereby simplifying the structure of the material moving mechanism and reducing the cost.

[0080] In order to realize the function of the aforementioned first driving mechanism, the first driving mechanism can drive the filter screen 1 to move, as shown in Figure 4 The filter screen 1 is annular, and at least one side of the filter screen 1 in the width direction has an annular tooth belt 11. The transmission gear 8 is engaged with the annular tooth belt 11. The air conditioner filter device further includes a first guide mechanism, and the transmission gear 8 is used to drive the filter screen 1 to rotate along the track defined by the first guide mechanism when the transmission gear 8 rotates.

[0081] In the above example, since the filter screen 1 is annular, the filter screen 1 cooperates with the annular guide rail 2 to enable the filter screen 1 to rotate by itself under the drive of the transmission gear 8, thereby realizing the function of the first driving mechanism.

[0082] It should be noted that the aforementioned first driving mechanism can include a motor, and the first driving mechanism drives the transmission gear 8 to rotate through the motor.

[0083] In order to improve the stability of the movement of the filter screen 1, as shown in Figure 4 Both sides of the aforementioned filter screen 1 in the width direction are provided with the aforementioned annular tooth belt 11, and the number of the aforementioned transmission gears 8 is equal to and corresponds to the number of the annular tooth belts 11.

[0084] As shown in Figure 5As shown, the first guiding mechanism can include a guide rail, which is a ring-shaped guide rail 2 matching the shape of the filter screen 1. The first guiding mechanism guides the movement of the filter screen 1 through the cooperation of the ring-shaped guide rail 2 and the ring-shaped toothed belt 11.

[0085] In the above example, the ring-shaped guide rail 2 guides the movement of the filter screen 1 only through the cooperation with the ring-shaped toothed belt 11, so as to prevent the ring-shaped guide rail 2 from blocking the upper and lower sides of the screen body of the filter screen 1 and affecting the air inlet of the air inlet. When the number of ring-shaped toothed belts 11 is two, the number of ring-shaped guide rails 2 is also two, and the two ring-shaped guide rails 2 correspond to the two ring-shaped toothed belts 11 one by one, and each ring-shaped guide rail 2 is used to support and guide the corresponding ring-shaped toothed belt 11.

[0086] As shown, Figure 1 When the material moving mechanism includes the discharge port 201, the discharge port 201 can be arranged on the ring-shaped guide rail 2. Since the cut first filter section is located on the ring-shaped guide rail 2, the discharge port 201 is arranged on the ring-shaped guide rail, so that the cut first filter section is more easily sent to the discharge port 201.

[0087] It should be noted that, in order to reduce the influence of the discharge port 201 on the operation of the filter screen 1 and prevent the filter screen 1 from falling from the discharge port 201, preferably, the discharge port 201 is a closable discharge port 201. The discharge port 201 is only opened when the material is moved, and the discharge port 201 is closed again after the first filter section flows out of the discharge port 201.

[0088] As shown, Figure 2 The air conditioner filter device can further include a limiting shaft 7 for supporting the filter screen 1 to improve the stability of the operation of the filter screen 1.

[0089] As shown, Figure 7 and Figure 8 The filter screen 1 has two opposite filter screen sections for covering the air inlet of the air conditioner together. A plurality of screen holes 101 are arranged on each filter screen section in sequence and at intervals, and a grid strip 102 is formed between two adjacent screen holes 101 on each filter screen section. The two filter screen sections are used to move relatively under the driving of the filter screen 1, so that the screen holes 101 on the two filter screen sections are opposite to each other (as shown in Figure 7 or the screen holes 101 on the two filter screen sections are opposite to the grid strips 102 on the other filter screen section (as shown in Figure 8 .

[0090] It should be noted that, as shown, Figure 6As shown in the drawings, the filter screen 1 is arranged on the annular guide rail 2, the annular guide rail 2 has an upper rail 21 and a lower rail 22, and the corresponding filter screen 1 has a first filter screen segment located on the upper rail 21 and a second filter screen segment located on the lower rail 22, the first filter screen segment and the second filter screen segment are opposite, and both the first filter screen segment and the second filter screen segment are two filter screen segments on the filter screen 1.

[0091] In the above example, the two filter screen segments are matched to form a double-layer filter screen pair to filter the air at the air inlet, so that the filtering effect of the air at the air inlet can be improved. When the air conditioner is working, the mesh holes 101 on the two filter screen segments are opposite to each other, so that the air volume attenuation can be reduced. When the air conditioner is not working, the mesh holes 101 on the two filter screen segments are opposite to the grid bars 102 on the other filter screen segment, the mesh holes 101 are staggered, and dust is blocked to prevent the dust from falling from the mesh holes 101 on the filter screen 1 to the inside of the air conditioner.

[0092] As shown in the drawings, Figure 3 The air conditioner filter device can further include a second driving mechanism and a cleaning mechanism 4, and the second driving mechanism is used to drive the cleaning mechanism 4 to move to the movement track of the filter screen 1 to clean the filter screen 1.

[0093] In the above example, the cleaning mechanism 4 is arranged to facilitate automatic cleaning of the dust on the filter screen 1, and the function of the cleaning-free filter screen 1 is realized.

[0094] It should be noted that, as shown in the drawings, Figure 3 The air conditioner filter device further includes a first storage box 6 located below the cleaning station to receive the falling dust. The air conditioner filter device can further include a dust detection sensor installed in the first storage box 6, which reminds the user to take out the first storage box 6 for cleaning when the dust accumulates to a certain thickness.

[0095] The first storage box 6 can also receive the falling first filter segment.

[0096] As shown in the drawings, Figure 2 The air conditioner filter device can further include a rotating member 5, and the cleaning mechanism 4 and the cutting mechanism 3 are arranged on the rotating member 5. The second driving mechanism is used to drive the rotating member 5 to move to a set position, and the rotating member 5 is used to rotate to a first corner position or a second corner position at the set position. As shown in the drawings, Figure 3 When the rotating member 5 is at the first corner position, the cleaning mechanism 4 is located on the movement track of the filter screen 1 to clean each part of the filter screen 1 when the filter screen 1 moves. As shown in the drawings, Figure 1 When the rotating member 5 is at the second corner position, the cutting mechanism 3 is located at the cutting station to cut the first filter segment on the filter screen 1.

[0097] In the above example, by setting both the cutting mechanism 3 and the cleaning mechanism 4 on the same rotating part 5, the cutting part and the cleaning part can be stored in the same space, so that the structure of the whole machine can be more compact.

[0098] The cleaning mechanism 4 described above may include a brush to clean the filter screen 1. In one example, the cutting mechanism 3 described above may include a cutter to cut the first filter section. In another example, the cutting mechanism 3 described above may include a laser cutter to cut the first filter section.

[0099] In a specific application example, the aforementioned second drive mechanism may include a power unit, a movable block, and a motor. Both the motor and the aforementioned rotating component 5 are mounted on the movable block. The second drive mechanism drives the movable block to move via the power unit, causing the movable block to move the rotating component 5 to a set position. The power unit may include a drive cylinder, etc., to drive the movable block to move via the drive cylinder. The motor drives the rotating component 5 to rotate, causing the rotating component 5 to rotate to a first or second angular position.

[0100] In order to realize the function of the aforementioned replacement mechanism, so that the replacement mechanism can send another first filter segment 1a between the two cut ends of the cut filter screen 1, preferably, the replacement mechanism may include a third drive mechanism, which is used to drive the other first filter segment 1a to move so as to send the other first filter segment 1a between the two cut ends of the cut filter screen 1.

[0101] In the example above, the third drive mechanism can be set to automatically update another first filter segment 1a, saving manpower.

[0102] like Figure 9 As shown, when the air conditioning filter device includes an annular guide rail 22, the annular guide rail 22 is provided with a feed inlet 202, and the aforementioned other first filter section 1a is used to feed the filter screen 1 after cutting from the feed inlet 202 between the two cut ends.

[0103] In the above example, the feed inlet 202 facilitates the determination of the feeding position of another first filter section 1a, so that the cut filter screen 1 can be driven to move its two cut ends to the feed inlet 202 for the feeding of another first filter section 1a.

[0104] like Figure 9 and Figure 10As shown, the third driving mechanism can include a feeding track 9 and a rotatable feeding roller 10, and the feeding track 9 is connected with the feeding port 202. The other first filter section 1a is wound on the feeding roller 10, and the feeding roller 10 is used to drive the other first filter section 1a to enter the feeding port 202 along the feeding track 9 when the feeding roller 10 rotates.

[0105] In the above example, the feeding roller 10 cooperates with the feeding track 9 to accurately feed the other first filter section 1a from the feeding port 202 to between the two cut ends of the cut filter screen 1.

[0106] As shown, Figure 10 The air conditioner filter device further includes a second storage box 12, and the feeding roller 10 is arranged in the second storage box 12. The feeding roller 10 is detachable relative to the second storage box 12, and the detachable connection between the feeding roller 10 and the second storage box 12 can be achieved by an electromagnetic device or the like. The air conditioner filter device can further include a position sensor for detecting whether the feeding roller 10 is installed in place. It should be noted that a plurality of standby feeding rollers can be placed in the second storage box 12, and each standby feeding roller is wound with the other first filter section 1a to facilitate replacement.

[0107] The third driving mechanism can include a motor to drive the feeding roller 10 to rotate. The feeding roller 10 can be wound with two or more other first filter sections 1a in sequence, and when the feeding roller 10 rotates, the other first filter section 1a located at the rear of the two adjacent other first filter sections 1a can push the other first filter section 1a located at the front to flow into the feeding port 202 along the feeding track 9.

[0108] The replacement mechanism can further include a connecting mechanism, and the two cut ends of the cut filter screen 1 are a first cut end 100 and a second cut end. The connecting mechanism is used to connect one end of the other first filter section 1a to the first cut end 100 and the other end of the other first filter section 1a to the second cut end.

[0109] In the above example, the two ends of the first filter section are connected to the first cut end 100 and the second cut end of the cut filter screen 1 by the connecting mechanism, which is beneficial to improve the connection stability between the first filter section and the cut filter screen 1.

[0110] In a specific application example, as shown, Figure 11As shown, when the air conditioner filter device comprises the first driving mechanism, the aforementioned connecting mechanism comprises a gluing mechanism 13. The aforementioned first driving mechanism is used to drive the cut filter screen 1 to move the first cut end 100 to the gluing station, so that the gluing mechanism 13 glues the first cut end 100 to form a gluing surface on the first cut end 100. Another first filter section 1a is used to be driven by the third driving mechanism to abut one end thereof against the gluing surface, so that one end of the another first filter section 1a is adhered and fixed to the first cut section.

[0111] The aforementioned first gluing mechanism 13 can be a glue spraying mechanism, and its specific structure is prior art, which will not be described here. The first gluing mechanism 13 can spray glue on the first cut end 100 by spraying glue.

[0112] In the above example, the first driving mechanism has a self-locking function. When the third driving mechanism drives one end of the another first filter section 1a to abut against the gluing surface, the first driving mechanism is closed, so that the gluing surface of the first cut section can be kept stationary, so that one end of the another first filter section 1a can be tightly abutted against the gluing surface, so as to facilitate the glue to adhere and fix the two together.

[0113] In order to achieve the purpose of the aforementioned connecting mechanism for connecting the other end of the another first filter section 1a to the second cut end, in a specific application example, when one end of the another first filter section 1a has been connected to the first cut end 100, the first driving mechanism is also used to drive the cut filter screen 1 to move the second cut end and the other end of the another first filter section 1a to the gluing station, so that the gluing mechanism 13 glues the gap between the second cut end and the other end of the another first filter section 1a. The connecting mechanism further comprises a pressing mechanism, which is used to press the second cut end and the other end of the another first filter section 1a after gluing, so as to adhere and fix the second cut end and the other end of the another first filter section 1a.

[0114] In the above example, when one end of the another first filter section 1a has been connected to the first cut end 100, the other end of the another first filter section 1a has a gap with the second cut end of the filter screen 1, and the gluing mechanism 13 can spray glue on the gap to fill the gap with glue. Then the pressing mechanism presses the second cut end and the other end of the another first filter section 1a after spraying glue, so that the glue can fully contact the second cut end and the other end of the another first filter section 1a to connect them together.

[0115] It should be noted that: Figure 11As shown, when the at least one side of the width direction of the filter screen 1 is provided with the annular toothed belt 11, the at least one side of the width direction of the another first filter section 1a is provided with a connecting toothed belt, the glue applying mechanism 13 is used to apply glue to the toothed belt part of the first cut end 100, and the end of the another first filter section 1a is abutted against the glue applying surface of the toothed belt part of the first cut end 100 to achieve the purpose of bonding and fixing the another first filter section 1a to the first cut end 100. Similarly, the glue applying mechanism 13 is used to apply glue between the toothed belt parts of the second cut end and the another first filter section 1a, the toothed belt part can be made of plastic material to have elasticity, and when the pressing mechanism presses the toothed belt parts of the second cut end and the another first filter section 1a, the toothed belt parts of the two can be deformed to be close to each other, thereby enhancing the connection effect of the glue between the two.

[0116] The air conditioner filter device further comprises a detection mechanism for detecting the dirty block position on the filter screen 1. The detection mechanism can be an infrared sensor, and the detection technology of the dirty block position on the filter screen 1 is a prior art, which will not be described here.

[0117] When the dirty block on the filter screen 1 is detected, the first filter section is formed as follows: along the length direction of the filter screen 1, the filter screen 1 is offset by a set length on both sides of the dirty block position to form a first offset position and a second offset position on the filter screen 1. The part of the filter screen 1 between the first offset position and the second offset position forms the first filter section, and the dirty block position is located in the first filter section.

[0118] In the above example, by offsetting the dirty block position by a set length on both sides to determine the first filter section to be cut, the dirty block position can be located in the middle of the first filter section, so that the dirty block part on the filter screen 1 can be cut off after the first filter section is cut off.

[0119] The embodiment of the present application further provides an indoor unit, which can comprise any one of the air conditioner filter devices. Due to the adoption of the air conditioner filter device, the cutting structure, the material moving mechanism and the replacement mechanism can cooperate to cut, move away and replace the first filter section after being dirty or damaged, thereby achieving the effect of updating the first filter section after being dirty or damaged. Compared with the scheme of replacing the entire filter screen 1 when only a part of the filter screen 1 is dirty or damaged in the prior art, the present application can only update the dirty or damaged section on the filter screen 1, which can reduce the cost and improve the utilization rate of the filter screen 1.

[0120] The embodiment of the present application further provides an operation method of an indoor unit, which comprises the step of cutting and updating the filter screen 1, and specifically comprises the following steps:

[0121] Step S1: cut off the first filter section on the filter screen 1, and form two cut ends on the cut filter screen 1.

[0122] Step S2: remove the cut first filter section from the filter screen 1.

[0123] Step S3: send another first filter section 1a between the two cut ends of the cut filter screen 1 to update the first filter section.

[0124] In the above example, through the cooperation of steps S1 to S3, the dirty or damaged first filter section can be cut off, removed and replaced, thereby achieving the effect of updating the dirty or damaged first filter section. Compared with the prior art in which the entire filter screen needs to be replaced when only a part of the filter screen is dirty or damaged, the present application can only update the dirty or damaged section on the filter screen 1, thereby reducing costs and improving the utilization rate of the filter screen 1.

[0125] When the indoor unit includes a cleaning mechanism 4, the following steps are further included before step S1:

[0126] Step S11: detect whether the running time of the filter screen 1 is greater than a set value T1. If yes, the indoor unit enters a cleaning mode and cleans the filter screen 1 through the cleaning mechanism 4. If not, detect whether the filter screen 1 is dirty. When the filter screen 1 is dirty, the indoor unit enters the cleaning mode and cleans the filter screen 1 through the cleaning mechanism 4.

[0127] In the above example, if the running time of the filter screen 1 is greater than the set value T1, the time T1 can be set according to actual conditions. The surface of the filter screen 1 is prone to dust accumulation after long-term operation, and the present application can automatically clean the filter screen 1 through the cleaning mechanism 4, saving manpower.

[0128] When it is detected that the filter screen 1 is not dirty and the indoor unit is turned on, if the filter screen 1 has two relatively filter screen sections, and the two filter screen sections are used to cover the air conditioner inlet together, the filter screen 1 is driven to move, so that the mesh holes 101 on the two filter screen sections are opposite to each other, to reduce the wind resistance on the filter screen 1 and improve the inlet efficiency.

[0129] When the filter screen 1 is dirty, and after the cleaning mechanism 4 cleans the filter screen 1, whether the filter screen 1 is still dirty is detected again. If the filter screen 1 is still dirty, the step of cutting and updating the filter screen 1 is entered. The dirty position is located on the first filter section.

[0130] In the above example, when the cleaning mechanism 4 still cannot clean the filter screen 1 after cleaning, it means that the filter screen 1 cannot be used, and the step of cutting and updating the filter screen 1 can automatically replace the dirty and blocked filter section.

[0131] Further, before step S1, the following step is further included: detecting whether the running time of the filter screen 1 is greater than a set value T2, which is greater than the aforementioned set value T1. If yes, the step of cutting and updating the filter screen 1 is repeated for N times, N is greater than or equal to 2. In each update, different first filter sections connected in sequence on the filter screen 1 are updated, and the length of each first filter section is L1, L1=L / N, L is the length of the filter screen 1.

[0132] In the above example, the set value T2 is the service life of the filter screen 1, and the filter screen 1 needs to be replaced in its entirety when the running time exceeds the service life. The present application can achieve the effect of replacing the entire filter screen 1 by continuously cutting and updating the filter screen 1 and replacing different sections connected in sequence. In a specific application example, the filter screen 1 can be replaced in its entirety by updating 1 / 4 of the filter screen 1 four times.

[0133] When the indoor unit is powered off, if the filter screen 1 has two relatively filter screen sections, and the two filter screen sections are used to cover the air inlet of the air conditioner together, the filter screen 1 is driven to move, so that the mesh holes 101 on the two filter screen sections are opposite to the grid bars 102 on the other section, to achieve full closure of the air inlet and prevent dust from entering the interior of the air conditioner through the mesh holes 101 of the filter screen 1.

[0134] Among them, the indoor unit of the present application has multiple operation modes such as cleaning mode, replacement mode and ordinary mode.

[0135] In the cleaning mode: the cleaning mechanism 4 such as a brush moves to the movement track of the filter screen 1, and the cleaning is realized by counterclockwise or clockwise rotation of the filter screen 1, and the washed dust falls into the first storage box 6.

[0136] In the replacement mode: the cutting mechanism 3 such as a cutter or a laser cutter moves to the cutting station, and the first filter section after cutting falls into the first storage box 6.

[0137] In the ordinary mode: the filter screen 1 can be cleaned and dusted during the start-up, shutdown and operation of the air conditioner.

[0138] 1. The filter screen 1 is annular and can be driven to rotate 360 degrees. When the air conditioner is in operation, the mesh holes 101 of the upper and lower opposite filter screen sections of the filter screen 1 are opposite to each other, thereby reducing air volume attenuation. When the air conditioner is in the off state, the mesh holes 101 of the upper and lower opposite filter screen sections of the filter screen 1 are staggered, thereby shielding dust. When the air conditioner is in the off state, the filter screen 1 runs at a low speed, thereby achieving silent dust removal and preventing dust from falling into the indoor unit.

[0139] 2. The cleaning mechanism 4 can clean the filter screen 1 when the indoor unit is turned on, turned off or in operation.

[0140] 3. Filter screen 1 replacement: when the filter screen 1 has been running for a period T or the filter screen 1 has uncleanable dirt or damage, the filter screen can be automatically replaced by enabling the replacement mode.

[0141] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the inventive concept of the present application and the content of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. An air conditioner filter device, characterized by, The air conditioner filter device comprises a cutting mechanism (3), a material moving mechanism, a replacing mechanism and a filter screen (1) arranged at an air inlet of an air conditioner; The cutting mechanism (3) is used for cutting a first filter section on the filter screen (1) and forming two cut ends on the cut filter screen (1); The material moving mechanism is used for moving the cut first filter section away from the filter screen (1); The replacing mechanism is used for feeding another first filter section (1a) between the two cut ends of the cut filter screen (1) to update the first filter section; The air conditioner filter device further comprises a first driving mechanism for driving the filter screen (1) to move, wherein the first driving mechanism comprises a rotatable transmission gear (8), the filter screen (1) is annular, at least one side of the filter screen (1) in the width direction has an annular tooth belt (11), and the transmission gear (8) is engaged with the annular tooth belt (11). The filter screen (1) has two opposite filter screen sections for covering the air inlet of the air conditioner together.

2. The air conditioner filter device according to claim 1, wherein The filter screen (1) is used for driving the two ends of the first filter section to move to the cutting station respectively, so that the cutting mechanism (3) cuts the two ends of the first filter section respectively to cut the first filter section from the filter screen (1).

3. The air conditioner filter device according to claim 1, wherein The filter screen (1) is further used for driving the cut first filter section to move to the material moving station, so that the material moving mechanism moves the cut first filter section away from the filter screen (1).

4. The air conditioner filter device according to claim 3, wherein The material moving mechanism comprises a discharge port (201), the cut first filter section is used for moving to the discharge port (201) under the driving of the filter screen (1), and the first filter section falls from the discharge port (201) under the action of its own gravity to move away from the filter screen (1).

5. The air conditioner filter device according to any one of claims 1 to 4, wherein The air conditioner filter device further comprises a first guide mechanism, and the transmission gear (8) is used for driving the filter screen (1) to rotate along a track defined by the first guide mechanism through the annular tooth belt (11) when rotating.

6. The air conditioner filter device according to claim 5, wherein The first guide mechanism comprises a guide rail, the guide rail is an annular guide rail (2) matched with the shape of the filter screen (1), and the first guide mechanism guides the movement of the filter screen (1) through cooperation of the annular guide rail (2) and the annular tooth belt (11); When the material moving mechanism comprises the discharge port (201), the discharge port (201) is arranged on the annular guide rail (2).

7. The air conditioner filter device according to claim 5, wherein A plurality of mesh holes (101) are arranged on each filter screen section in sequence and at intervals, and a grid strip (102) is formed between two adjacent mesh holes (101) on each filter screen section. The two filter screen sections are used to make the screen holes (101) on the two filter screen sections opposite to each other or make the screen holes (101) on the two filter screen sections opposite to the grid bars (102) on the other filter screen section through the relative movement of the filter screen (1).

8. The air conditioner filter arrangement of any one of claims 1 to 4, 6-7, wherein, The air conditioner filter device further comprises a second driving mechanism and a cleaning mechanism (4), the second driving mechanism is used to drive the cleaning mechanism (4) to move to the movement track of the filter screen (1) to clean the filter screen (1).

9. The air conditioner filter apparatus of claim 8, wherein, When the filter screen (1) is used to make the two ends of the first filter section move to the cutting station respectively, the cutting mechanism (3) is used to cut the two ends of the first filter section respectively to cut the first filter section from the filter screen (1), the air conditioner filter device further comprises a rotating member (5), the cleaning mechanism (4) and the cutting mechanism (3) are arranged on the rotating member (5), the second driving mechanism is used to drive the rotating member (5) to move to a set position, the rotating member (5) is used to rotate to a first corner position or a second corner position at the set position; when the rotating member (5) is at the first corner position, the cleaning mechanism (4) is located on the movement track of the filter screen (1); when the rotating member (5) is at the second corner position, the cutting mechanism (3) is located at the cutting station.

10. The air conditioner filter device according to any one of claims 1 to 4, 6-7, 9, wherein the replacement mechanism comprises a third driving mechanism, the third driving mechanism is used to drive another first filter section (1a) to move to send the another first filter section (1a) between the two cut ends of the cut filter screen (1).

11. The air conditioner filter device according to claim 10, wherein when the air conditioner filter device comprises a ring-shaped guide rail (2), the ring-shaped guide rail (2) is provided with a feeding port (202), and the another first filter section (1a) is used to be sent from the feeding port (202) to between the two cut ends of the cut filter screen (1).

12. The air conditioner filter device according to claim 11, wherein the third driving mechanism comprises a feeding track (9) and a rotatable feeding roller (10), the feeding port (202) is connected to the feeding outlet of the feeding track (9), the another first filter section (1a) is wound on the feeding roller (10), and the feeding roller (10) is used to rotate to drive the another first filter section (1a) to enter the feeding port (202) along the feeding track (9). The replacement mechanism further comprises a connecting mechanism, and the two cut ends of the cut filter screen (1) are a first cut end (100) and a second cut end respectively. The connecting mechanism is used to connect one end of the another first filter section (1a) to the first cut end (100) and connect the other end of the another first filter section (1a) to the second cut end. When the air conditioner filter device comprises the first driving mechanism, the connecting mechanism comprises a gluing mechanism (13).

13. The air conditioner filter arrangement of claim 10, wherein, ​ ​ 14. The air conditioner filter arrangement of claim 13, wherein, ​ The first driving mechanism is used to drive the cut filter screen (1) to move the first cut end (100) to the gluing station, so that the gluing mechanism (13) glues the first cut end (100) to form a gluing surface on the first cut end (100); The other first filter section (1a) is driven by the third driving mechanism to abut one end of the other first filter section (1a) against the gluing surface, so that one end of the other first filter section (1a) is bonded and fixed to the first cut end.

15. The air conditioner filter device according to claim 14, wherein when the other first filter section (1a) is connected to the first cut end (100), the first driving mechanism is further used to drive the cut filter screen (1) to move the second cut end and the other end of the other first filter section (1a) to the gluing station, so that the gluing mechanism (13) glues the gap between the second cut end and the other end of the other first filter section (1a), and the connecting mechanism further comprises a pressing mechanism, which is used to press the glued second cut end and the other end of the other first filter section (1a) to bond and fix the second cut end and the other end of the other first filter section (1a). The air conditioner filter device according to any one of claims 1 to 15.

16. An indoor unit, characterized by comprising: The air conditioner filter device comprises the steps of cutting and updating the filter screen (1), specifically comprising:

17. A method for operating the station of claim 16, wherein Step S1: cutting the first filter section on the filter screen (1) and forming two cut ends on the cut filter screen (1); Step S2: moving the cut first filter section away from the filter screen (1); Step S3: feeding another first filter section (1a) between the two cut ends of the cut filter screen (1) to update the first filter section. When the indoor unit comprises the cleaning mechanism (4), the following step is further included before step S1:

18. The operation method of the indoor unit according to claim 17, wherein, Step S11: detecting whether the running time of the filter screen (1) is greater than a set value T1; If yes, the indoor unit enters the cleaning mode and cleans the filter screen (1) by the cleaning mechanism (4); If no, detecting whether the filter screen (1) is blocked by dirt, and when the filter screen (1) is blocked by dirt, the indoor unit enters the cleaning mode and cleans the filter screen (1) by the cleaning mechanism (4).

19. The operation method of the indoor unit according to claim 18, wherein when it is detected that the filter screen (1) is not blocked by dirt and the indoor unit is turned on, if the filter screen (1) has two opposite filter screen sections and the two filter screen sections are used to cover the air inlet of the air conditioner together, the filter screen (1) is driven to move so that the mesh holes (101) on the two filter screen sections are opposite to each other.

20. The operation method of the indoor unit according to claim 18, wherein when the filter screen (1) is blocked by dirt and after the cleaning mechanism (4) cleans the filter screen (1), it is detected again whether the filter screen (1) is blocked by dirt, and if the filter screen (1) is still blocked by dirt, the step of cutting and updating the filter screen (1) is entered, wherein the position blocked by dirt is on the first filter section. The following step is further included before step S1: ​ ​ 21. The operation method of the indoor unit according to any one of claims 18 to 20, characterized by, ​ detecting whether the running time of the filter screen (1) is greater than a set value T2, the set value T2 being greater than the set value T1; if yes, repeating the step of cutting and updating the filter screen (1) for N times, N being greater than or equal to 2; wherein each time, different first filter sections connected in sequence on the filter screen (1) are updated, and the length of each first filter section is L1, L1=L / N, L being the length of the filter screen (1).

22. The operation method of the indoor unit according to any one of claims 17 to 20, characterized in that, when the indoor unit is powered off, if the filter screen (1) has two opposite filter screen sections, and the two filter screen sections are used to cover the air inlet of the air conditioner together, the filter screen (1) is driven to move, so that the mesh holes (101) on the two filter screen sections are opposite to the grid bars (102) on the other side.

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