CN108361848B - Air conditioner - Google Patents

Abstract

The invention discloses an air conditioner, comprising: the heat exchange module is provided with an air return port; the filter screen is arranged at the air return opening; the dust removing mechanism is arranged on the heat exchange module and comprises a dust collecting box which extends along the width direction of the filter screen and is movable in the length direction of the filter screen and a dust collecting piece which is arranged in the dust collecting box and is movable relative to the width direction of the filter screen, a dust collecting opening communicated with the inside of the dust collecting box is formed in the dust collecting piece, a dust discharging opening communicated with the inside of the dust collecting box is formed in the dust collecting box, an exhaust fan is arranged at the dust discharging opening, and when the exhaust fan works, dust on the filter screen is suitable for entering the dust collecting box through the dust collecting opening and is conveyed to the dust discharging opening. According to the air conditioner, the dust collection mechanism comprising the dust collection box and the dust collection piece is arranged, so that the dust collection mechanism can directly clean the filter screen without detaching the filter screen. Compared with the traditional cleaning mode in which the filter screen is required to be detached, the cleaning device is more convenient, and saves time and labor.

Description

Air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner.

Background

In the related art, after a filter screen at a return air inlet of an indoor unit of an air conditioner is used for a long time, a lot of dust can be covered on the filter screen, so that the filter screen needs to be cleaned. When the cleaning, usually need the manual work to tear down the filter screen, after the clearance, install the filter screen to return air inlet department again. The whole process is inconvenient, and time and labor are wasted.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the air conditioner, and the filter screen can be directly cleaned by the dust removing mechanism without detaching the filter screen.

According to an embodiment of the invention, an air conditioner includes: the heat exchange module is provided with an air return port; the filter screen is arranged at the return air inlet; the dust removing mechanism is arranged on the heat exchange module, the dust removing mechanism comprises a dust collecting box which extends along the width direction of the filter screen and is movable along the length direction of the filter screen, and a dust collecting piece which is arranged in the dust collecting box and is movable relative to the width direction of the filter screen, a dust collecting opening communicated with the inside of the dust collecting box is formed in the dust collecting piece, a dust discharging opening communicated with the inside of the dust collecting box is formed in the dust collecting box, an exhaust fan is arranged at the dust discharging opening, and when the exhaust fan works, dust on the filter screen is suitable for entering the dust collecting box through the dust collecting opening and is conveyed to the dust discharging opening.

According to the air conditioner provided by the embodiment of the invention, the dust collection mechanism comprising the dust collection box and the dust collection piece is arranged, so that the dust collection mechanism can directly clean the filter screen without disassembling the filter screen. Compared with the traditional cleaning mode in which the filter screen is required to be detached, the cleaning device is more convenient, and saves time and labor.

According to some embodiments of the invention, a strip-shaped hole extending along the width direction of the filter screen is formed on a side surface of the dust collection box facing the filter screen, wherein the dust collection opening is opposite to the strip-shaped hole.

According to some embodiments of the invention, the dust collection opening is provided with an annular rib extending towards the filter screen, and the annular rib is movably matched in the strip-shaped hole.

According to some embodiments of the invention, a side surface of the annular bead adjacent to the filter screen is flush with a side surface of the dust collection box facing the filter screen; or one side surface of the annular convex rib, which is adjacent to the filter screen, and the filter screen are respectively positioned at two sides of one side surface of the dust collection box, which faces the filter screen.

According to some embodiments of the invention, the dust collection box comprises a first dust collection cover and a second dust collection cover connected to each other along a length direction of the filter screen, a side of the first dust collection cover facing the second dust collection cover is a first open side and a surface of the first open side is flush, a side of the second dust collection cover facing the first dust collection cover is a second open side, and a surface of the second open side adjacent to the filter screen and a surface of the first open side adjacent to the filter screen are spaced apart from each other to define the bar-shaped hole.

According to some embodiments of the present invention, two driving wheels are disposed in the dust collection box, the two driving wheels are respectively located at two ends of the filter screen in the width direction, the dust collection member is an annular dust collection belt, the dust collection member is wound on the two driving wheels, at least one first driving motor is disposed on the dust collection box, and the first driving motor is connected with at least one of the two driving wheels to be suitable for driving the dust collection opening on the dust collection member to move along the width direction of the filter screen.

According to some embodiments of the invention, the dust collecting member is provided with at least one set of engaging hole groups, each set of engaging hole groups comprises a plurality of engaging holes arranged at intervals along the length direction of the dust collecting member, each driving wheel is provided with at least one set of engaging protrusion groups, each set of engaging protrusion groups comprises a plurality of engaging protrusions arranged at intervals along the circumferential direction of the driving wheel, and the engaging protrusions are adapted to engage in the engaging holes.

According to some embodiments of the invention, the two sets of the engaging holes are respectively disposed at two ends of the dust collecting member in the width direction, the two sets of the engaging protrusions are respectively disposed at two axial ends of the driving wheel.

According to some embodiments of the invention, at least one limiting wheel rotatable around a central axis of the dust collecting box is arranged in the dust collecting box, the limiting wheel is positioned between the two driving wheels, and the dust collecting piece is wound on the limiting wheel.

According to some embodiments of the invention, the heat exchange module is provided with at least one rack, the rack is located at one side of the filter screen in the width direction and extends along the length direction of the filter screen, and at least one end of the dust collection box in the length direction is provided with a gear meshed with the rack and a second driving motor connected with the gear.

According to some embodiments of the invention, the dust discharge port is formed at the center in the length direction of the dust box and at a side of the dust box away from the filter screen.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a partial schematic view of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of the filter screen and dust removal mechanism shown in FIG. 1;

FIG. 3 is a schematic view of the filter screen and dust removal mechanism shown in FIG. 2 at another angle;

FIG. 4 is a perspective view of the dust removal mechanism shown in FIG. 1;

FIG. 5 is another angular perspective view of the dust removal mechanism shown in FIG. 4;

FIG. 6 is an exploded view of the dust removal mechanism shown in FIG. 1;

FIG. 7 is an exploded view of the dust collection member, two drive wheels and two spacing wheels shown in FIG. 6;

fig. 8 is a schematic view of the dust removing mechanism shown in fig. 6, in which the dust collecting cover of the upper part is not shown.

Reference numerals:

100: an air conditioner;

1: a heat exchange module; 11: a rack;

2: a filter screen;

31: a dust collection box; 311: a first dust collecting cover; 312: a second dust collecting cover; 3121: a bar-shaped hole;

313: a dust discharge port;

32: a dust collection member; 321: a dust collection port; 3211: annular convex ribs; 322: a mating hole;

33: a driving wheel; 331: fitting the protrusion;

34: a first driving motor; 35: a limiting wheel; 36: a gear;

37: and a second driving motor.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

An air conditioner 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 8. The air conditioner 100 may have only a heat exchanging function, and the air conditioner 100 may be a single cooler or a cooling and heating machine. Of course, the air conditioner 100 may have an air treatment function, such as purifying and/or humidifying air, in addition to the heat exchange function. Alternatively, the air conditioner 100 is a cabinet or a hanging up.

As shown in fig. 1 to 8, an air conditioner 100 according to an embodiment of the present invention includes a heat exchange module 1, a filter screen 2, and a dust removing mechanism.

The heat exchange module 1 has an air return opening. The filter screen 2 is arranged at the return air inlet. The filter screen 2 may be used to filter out dust and the like from the air flow (e.g., air, etc.) entering the heat exchange module 1 from the return air inlet. The dust removing mechanism is used for removing dust and the like adhering to the filter screen 2. The heat exchange module 1 may be an indoor heat exchange module 1, at this time, the filter screen 2 and the dust removing mechanism are both disposed at a return air inlet of the indoor heat exchange module 1, specifically, the heat exchange module 1 may include a heat exchanger and a fan, when the fan works, an air flow outside the heat exchange module 1, for example, air, may enter the heat exchange module 1 through the return air inlet and exchange heat with the heat exchanger in the heat exchange module 1, and the air flow after heat exchange, for example, air is sent out from an air outlet of the heat exchange module 1. Through setting up filter screen 2 in return air inlet department, can play fine clean effect to the air current that enters into in the heat transfer module 1, guaranteed the cleanliness of the air current of following above-mentioned air outlet and send out to user's healthy has been guaranteed. It is understood that the specific structure and working principle of the heat exchange module 1 are well known to those skilled in the art, and will not be described herein. Of course, the heat exchange module 1 may also be an outdoor heat exchange module 1, where the filter screen 2 and the dust removing mechanism are both disposed at the return air inlet of the outdoor heat exchange module 1.

Referring to fig. 1 in combination with fig. 2 and 3, a dust removing mechanism is provided on the heat exchange module 1, the dust removing mechanism including a dust box 31 extending in a width direction (e.g., a left-right direction in fig. 1) of the filter screen 2 and movable in a length direction (e.g., an up-down direction in fig. 1) of the filter screen 2, and a dust collecting member 32 provided in the dust box 31 and movable with respect to the width direction of the filter screen 2, a dust suction port 321 communicating with an inside of the dust box 31 being formed on the dust collecting member 32, a dust discharge port 313 communicating with an inside of the dust box 31 being formed on the dust box 31, an exhaust fan (not shown) being provided at the dust discharge port 313, dust on the filter screen 2 being adapted to enter the dust box 31 through the dust suction port 321 and be conveyed to the dust discharge port 313 when the exhaust fan is in operation. Thus, by providing the dust collection member 32 movable in the width direction of the filter screen 2 in the dust collection box 31, since the dust collection port 321 is formed on the dust collection member 32, the dust collection port 321 can move in the width direction of the filter screen 2 together with the dust collection member 32, and when the exhaust fan is operated, the dust collection port 321 can sequentially suck the dust and the like attached to the filter screen 2 in the width direction of the filter screen 2 into the dust collection box 31 and guide the dust discharge port 313 along the width direction of the filter screen 2, so that the dust and the like in the width direction of the filter screen 2 can be cleaned. By making the dust box 31 movable in the longitudinal direction of the filter screen 2, cleaning up dust and the like in the longitudinal direction of the filter screen 2 can be achieved when the suction fan is in operation. In summary, by providing the dust box 31 to be movable in the longitudinal direction of the filter screen 2 and the dust collecting member 32 provided in the dust box 31 to be movable in the width direction of the filter screen 2, it is possible to achieve the full cleaning of the filter screen 2.

The position shown in fig. 1 may be an initial position of the dust removal mechanism. When the filter screen 2 is used for a long time and needs cleaning, the suction fan may be started, and the dust suction port 321 is moved from one end of the filter screen 2 to the other end of the filter screen 2 in the width direction of the filter screen 2, in which process the position of the dust removal mechanism in the length direction of the filter screen 2 is kept unchanged all the time, for example, always at the lower end of the filter screen 2 shown in fig. 1, to clean dust and the like in the width direction of the filter screen 2 at the height. Then, the dust removing mechanism is moved upward by one step in the longitudinal direction of the filter screen 2 shown in fig. 1, and then the dust suction port 321 is moved from the other end of the filter screen 2 to the one end of the filter screen 2 in the width direction of the filter screen 2, and in this process, the position of the dust removing mechanism in the longitudinal direction of the filter screen 2 is also kept unchanged all the time, so that dust and the like in the width direction of the filter screen 2 at the height are cleaned. Then, the dust removing mechanism moves further upward, and moves the dust collection port 321 from the one end of the filter screen 2 to the other end of the filter screen 2 in the width direction of the filter screen 2. And so on until the dust removing mechanism moves to the upper end of the filter screen 2. Thereby, the whole cleaning of the filter screen 2 is realized. Then, the dust removing mechanism is directly reset to the lower end of the filter screen 2, and the dust collecting member 32 is fixed relative to the dust collecting box 31. And (5) finishing dust removal.

It will be appreciated that the specific movement time of the dust collecting member 32 and the dust collecting box 31 may be specifically set according to practical requirements, for example, the dust collecting member 32 and the dust collecting box 31 may also move simultaneously, so long as the cleaning of the whole filter screen 2 can be achieved.

According to the air conditioner 100 of the embodiment of the present invention, by providing the dust removing mechanism including the dust box 31 and the dust collecting member 32 described above, the dust removing mechanism can directly clean the filter screen 2 without removing the filter screen 2. Compared with the traditional cleaning mode that the filter screen 2 needs to be detached, the cleaning device is more convenient, time-saving and labor-saving.

According to some embodiments of the present invention, referring to fig. 3 in combination with fig. 5, a bar-shaped hole 3121 extending in a width direction of the filter screen 2 is formed on a side surface of the dust collection box 31 facing the filter screen 2, wherein the dust collection port 321 is opposite to the bar-shaped hole 3121. The dust collection port 321 reciprocates between both ends of the dust collection box 31 in the longitudinal direction by the driving of the dust collection member 32. For example, in the example of fig. 3 and 5, the bar-shaped hole 3121 is formed as a rectangular hole extending straight in the width direction of the filter screen 2, and the dust collection port 321 is opposite to the bar-shaped hole 3121 in the inner and outer directions of the heat exchange module 1. Here, it should be noted that the direction "in" is understood as a direction toward the center of the heat exchange module 1, and the opposite direction is defined as "out", i.e., a direction away from the center of the heat exchange module 1. Thus, by providing the above-described bar-shaped hole 3121, the suction port 321 can be moved in the length direction of the bar-shaped hole 3121, thereby cleaning dust and the like in the width direction of the filter screen 2 in order, and by providing the bar-shaped hole 3121 on the side surface of the dust collection box 31 adjacent to the filter screen 2, the distance between the suction port 321 and the filter screen 2 is made closer, and the suction force is made larger, thereby cleaning dust and the like on the filter screen 2 better.

Alternatively, as shown in fig. 5-8, the dust collection opening 321 is provided with an annular rib 3211 extending towards the filter screen 2, and the annular rib 3211 is movably matched in the strip-shaped hole 3121. Therefore, by arranging the annular ribs 3211, the strip-shaped holes 3121 have a guiding effect on the movement of the annular ribs 3211, so that the dust collection openings 321 can be always opposite to the strip-shaped holes 3121, thereby ensuring the reliability of dust collection by the dust collection mechanism.

Further, a side surface of the dust collection member 32 facing the filter screen 2 is in contact with a corresponding inner surface of the dust collection box 31. Thereby, the dust collection member 32 can close the strip-shaped hole 3121 so that the suction force at the dust collection port 321 is greater, and thus dust and the like on the filter screen 2 can be better sucked into the dust collection box 31 through the dust collection port 321.

According to some alternative embodiments of the present invention, as shown in fig. 3 and 5, a side surface of the annular bead 3211 adjacent to the filter screen 2 and the filter screen 2 are respectively located at both sides of a side surface of the dust box 31 facing the filter screen 2. For example, in the examples of fig. 3 and 5, the distance between the side surface of the annular bead 3211 adjacent to the filter screen 2 and the side surface of the filter screen 2 facing the dust collection member 32 is greater than the distance between the side surface of the dust collection box 31 facing the filter screen 2 and the side surface of the filter screen 2 facing the dust collection member 32, and the side surface of the annular bead 3211 adjacent to the filter screen 2 is disposed immediately adjacent to the side surface of the filter screen 31 facing the filter screen 2, thereby avoiding the situation that the annular bead 3211 protrudes out of the strip-shaped hole 3121 to contact the filter screen 2 to cause friction while ensuring that the annular bead 3211 can be well fitted with the strip-shaped hole 3121, simplifying the processing difficulty of the dust collection member 32, and reducing the cost.

Of course, the invention is not limited thereto, and according to other alternative embodiments of the invention, a side surface of the annular bead 3211 adjacent to the filter screen 2 is flush with a side surface of the dust box 31 facing the filter screen 2. Therefore, the annular ribs 3211 can be well matched with the strip-shaped holes 3121, and the condition that the annular ribs 3211 extend out of the strip-shaped holes 3121 to contact with the filter screen 2 to cause friction is avoided.

According to some embodiments of the present invention, as shown in fig. 6, the dust box 31 may include a first dust collecting cover 311 and a second dust collecting cover 312 connected to each other in a length direction of the filter screen 2, a side of the first dust collecting cover 311 facing the second dust collecting cover 312 (e.g., a lower side in fig. 6) is a first open side and a surface of the first open side is flush, a side of the second dust collecting cover 312 facing the first dust collecting cover 311 (e.g., an upper side in fig. 6) is a second open side, and a surface of the second open side adjacent to the filter screen 2 and a surface of the first open side adjacent to the filter screen 2 are spaced apart from each other to define the above-mentioned bar-shaped hole 3121. For example, in the example of fig. 6, the first dust collecting cover 311 and the second dust collecting cover 312 are disposed up and down, the lower side of the first dust collecting cover 311 is opened, and the lower surface of the first dust collecting cover 311 is in the same horizontal plane, the upper side of the second dust collecting cover 312 is opened, the second dust collecting cover 312 includes a first side plate and a second side plate disposed at intervals from inside to outside along the inside and outside direction of the heat exchange module 1, the upper end surface of the first side plate is lower than the upper end surface of the second side plate, the upper end surface of the second side plate is adapted to contact with the corresponding surface of the first dust collecting cover 311, and the upper end surface of the first side plate is spaced up and down from the corresponding surface of the first dust collecting cover 311 to define the above-mentioned bar-shaped hole 3121. Thus, by providing the dust box 31 including the two parts of the first dust collecting cover 311 and the second dust collecting cover 312, the installation of the dust collecting member 32 is facilitated, and the molding of the bar-shaped hole 3121 is facilitated. Of course, in other examples of the present invention, the first dust collecting cover 311 may be disposed below the second dust collecting cover 312 along the length direction of the filter screen 2 (not shown).

According to some embodiments of the present invention, referring to fig. 6 in combination with fig. 7 and 8, two driving wheels 33 are provided in the dust collection box 31, the two driving wheels 33 are respectively located at two ends of the filter screen 2 in the width direction, the dust collection member 32 is an annular dust collection belt, the dust collection member 32 is wound on the two driving wheels 33, at least one first driving motor 34 is provided on the dust collection box 31, and the first driving motor 34 is connected with at least one of the two driving wheels 33 to be suitable for driving the dust collection opening 321 on the dust collection member 32 to move along the width direction of the filter screen 2. For example, as shown in fig. 6 to 8, two driving wheels 33 are respectively provided at both ends of the dust box 31 in the length direction, a ring-shaped dust collecting belt is wound around the two driving wheels 33, each driving wheel 33 extends in the length direction of the filter screen 2, and each driving wheel 33 is connected to one first driving motor 34, specifically, two first driving motors 34 are provided at the bottom of the dust box 31, each first driving motor 34 has a first output shaft which passes upward through the bottom of the dust box 31 and is connected to the corresponding driving wheel 33. When the first driving motor 34 works, the first driving motor 34 can drive the dust collection member 32 to move through the corresponding driving wheel 33, so that the dust collection opening 321 on the dust collection member moves along the length direction of the dust collection box 31. Therefore, by adopting the two driving wheels 33 and the two first driving motors 34, the force applied to the dust collecting member 32 can be uniform, and the dust collecting member 32 can move more smoothly, so that the service life of the dust collecting member 32 is prolonged.

Further, as shown in fig. 6 to 8, the dust collecting member 32 is provided with at least one set of engaging hole groups, each set of engaging hole groups includes a plurality of engaging holes 322 arranged at intervals along the length direction of the dust collecting member 32, each driving wheel 33 is provided with at least one set of engaging protrusion groups, each set of engaging protrusion groups includes a plurality of engaging protrusions 331 arranged at intervals in the circumferential direction of the driving wheel 33, and the engaging protrusions 331 are adapted to engage in the engaging holes 322. Therefore, the dust collecting member 32 can reciprocate more stably through the cooperation of the cooperation hole 322 and the cooperation protrusion 331, and the phenomenon that the dust collecting member 32 slips is effectively avoided. Further, by disposing the fitting hole 322 on the dust collection member 32 and disposing the fitting protrusion 331 on the driving wheel 33, the material of the dust removing mechanism is reduced, and the weight of the dust removing mechanism is reduced.

Alternatively, referring to fig. 6 to 8, two sets of fitting hole groups are provided at both ends of the dust collection member 32 in the width direction, respectively, and two sets of fitting protrusion groups are provided at both axial ends of the driving wheel 33, respectively. Thus, the force applied to the dust collection member 32 and the driving wheel 33 can be more uniform and the movement can be more stable.

Alternatively, as shown in fig. 7, the plurality of fitting holes 322 in each fitting hole group are arranged at regular intervals in the length direction of the dust collection member 32, and the plurality of fitting protrusions 331 in each fitting protrusion group are arranged at regular intervals in the circumferential direction of the driving wheel 33. Thereby, the dust collecting member 32 and the driving wheel 33 are conveniently processed, and the cost is saved.

Alternatively, each of the fitting holes 322 is a through hole penetrating in the thickness direction of the dust collection member 32. Of course, the present invention is not limited thereto, and each of the fitting holes 322 may also be blind holes (not shown).

Alternatively, the dust collection member 32 is a flexible member. It is understood that "flexible" is an object property with respect to rigidity.

According to a further embodiment of the invention, as shown in fig. 7 and 8, at least one limiting wheel 35 is provided in the dust box 31, which limiting wheel 35 is rotatable about its central axis, between two driving wheels 33, wherein the dust collecting member 32 is wound around the limiting wheel 35. For example, in the example of fig. 7 and 8, two spacing wheels 35 are provided between the two drive wheels 33 in a spaced arrangement. Therefore, the limit wheels 35 are arranged, so that the position of the dust collecting belt can be limited, the situation that the annular dust collecting belt is worn due to mutual contact between the mutually overlapped parts is avoided, the normal movement of the dust collecting belt is ensured, and the service life of the dust collecting belt is prolonged.

Two spacing wheels 35 are shown in fig. 7 for illustrative purposes, but it will be apparent to one of ordinary skill in the art after reading the above disclosure that the disclosure applies to three or more spacing wheels 35.

According to some embodiments of the present invention, as shown in fig. 1, at least one rack 11 is provided on the heat exchange module 1, the rack 11 is located at one side of the filter screen 2 in the width direction and extends along the length direction of the filter screen 2, and at least one end of the dust collection box 31 in the length direction is provided with a gear 36 engaged with the rack 11 and a second driving motor 37 connected to the gear 36. Therefore, through the cooperation of the gear 36 and the rack 11, the dust box 31 can be well moved along the length direction of the filter screen 2, and the dust box is simple in structure and easy to realize. For example, referring to fig. 1, two sides of the filter screen 2 in the width direction are respectively provided with one rack 11, each rack 11 extends along the length direction of the filter screen 2, two ends of the dust box 31 in the length direction are respectively provided with one gear 36, the gears 36 are suitable for meshing with the corresponding racks 11, two second driving motors 37 are provided on the side of the dust box 31, each second driving motor 37 has a second output shaft, and the second output shaft passes through the dust box 31 and is connected with the corresponding gear 36. When the second driving motor 37 works, the second driving motor 37 can drive the dust collection box 31 to move back and forth along the length direction of the filter screen 2 through the cooperation of the corresponding gear 36 and the rack 11.

According to some embodiments of the present invention, as shown in fig. 4, the dust discharge port 313 is formed at the center of the dust box 31 in the length direction and at a side of the dust box 31 away from the filter screen 2. Thus, since the dust suction port 321 can reciprocate between both ends in the length direction of the dust box 31, dust and the like entering the dust box 31 can be better discharged through the dust discharge port 313 by arranging the dust discharge port 313 at the center in the length direction of the dust box 31, and, by arranging the dust discharge port 313 at the side of the dust box 31 away from the filter screen 2, the dust discharge port 313 and the dust suction port 321 are located at both sides of the dust box 31 in the inside-outside direction of the heat exchange module 1 at this time, dust and the like entering the dust box 31 can be further better discharged through the dust discharge port 313. For example, referring to fig. 1 and 2 in combination with fig. 4, the side of the dust box 31 remote from the heat exchange module 1 has a dust discharging portion protruding toward a direction remote from the heat exchange module 1, the dust discharging portion extends in an up-down direction, and a lower end of the dust discharging portion extends downward beyond a lower end surface of the dust box 31 so as to be connected to an exhaust fan.

As shown in fig. 1, the dust removing mechanism is arranged on one side of the filter screen 2 away from the heat exchange module 1. Therefore, the arrangement of the dust removing mechanism is facilitated, and the installation and the disassembly of the dust removing mechanism are facilitated.

According to the air conditioner 100 of the embodiment of the present invention, the automatic dust removal of the filter screen 2 can be realized by adopting the dust removal mechanism described above. Specifically, as shown in fig. 1, the dust removing mechanism is reciprocally movable in the height direction of the filter screen 2 by the drive of the second drive motor 37, the gear 36 and the rack 11. After the dust collection port 321 completes one movement from one end of the dust collection box 31 to the other end thereof, the dust collection mechanism goes upward one step; after the dust suction port 321 completes the movement from the other end of the dust box 31 to the one end thereof again, the dust removing mechanism goes further upward, and so on. After the dust removing mechanism moves to the topmost end, the dust removing mechanism is directly reset to the initial position of the lower end, and the dust removing is finished.

Other constructions, such as, and operation of the air conditioner 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. An air conditioner, comprising:

the heat exchange module is provided with an air return port;

the filter screen is arranged at the return air inlet;

the dust removing mechanism is arranged on the heat exchange module and comprises a dust collecting box which extends along the width direction of the filter screen and is movable in the length direction of the filter screen and a dust collecting piece which is arranged in the dust collecting box and is movable relative to the width direction of the filter screen, a dust collecting opening communicated with the inside of the dust collecting box is formed in the dust collecting piece, a dust discharging opening communicated with the inside of the dust collecting box is formed in the dust collecting box, an exhaust fan is arranged at the dust discharging opening, and when the exhaust fan works, dust on the filter screen is suitable for entering the dust collecting box through the dust collecting opening and is conveyed to the dust discharging opening; wherein the dust discharge port is positioned at one side of the dust collection box far away from the filter screen,

a strip-shaped hole extending along the width direction of the filter screen is formed on the surface of one side of the dust collection box facing the filter screen, wherein the dust collection opening is opposite to the strip-shaped hole;

the dust collection opening is provided with an annular convex rib extending towards the direction of the filter screen, and the annular convex rib is movably matched in the strip-shaped hole;

one side surface of the annular convex rib adjacent to the filter screen is flush with one side surface of the dust collection box facing the filter screen; or (b)

The annular convex rib is arranged on the side surface of the dust collection box, which is adjacent to the filter screen, and the filter screen is respectively arranged on two sides of the side surface of the dust collection box, which faces the filter screen.

2. The air conditioner of claim 1, wherein the dust box includes a first dust collecting cover and a second dust collecting cover connected to each other in a length direction of the filter screen, a side of the first dust collecting cover facing the second dust collecting cover is a first open side and a surface of the first open side is flush, a side of the second dust collecting cover facing the first dust collecting cover is a second open side, and a surface of the second open side adjacent to the filter screen and a surface of the first open side adjacent to the filter screen are spaced apart from each other to define the bar-shaped hole.

3. An air conditioner according to any one of claims 1-2, wherein two driving wheels are provided in the dust box, the two driving wheels being located at both ends of the filter screen in the width direction,

the dust collecting piece is an annular dust collecting belt and is wound on the two driving wheels,

the dust collection box is provided with at least one first driving motor, and the first driving motor is connected with at least one of the two driving wheels so as to be suitable for driving the dust collection opening on the dust collection piece to move along the width direction of the filter screen.

4. An air conditioner according to claim 3, wherein the dust collecting member is provided with at least one set of engaging hole groups, each set of engaging hole groups includes a plurality of engaging holes arranged at intervals along a length direction of the dust collecting member, each driving wheel is provided with at least one set of engaging protrusion groups, each set of engaging protrusion groups includes a plurality of engaging protrusions arranged at intervals in a circumferential direction of the driving wheel, and the engaging protrusions are adapted to be engaged in the engaging holes.

5. The air conditioner according to claim 4, wherein the number of the fitting hole groups is two, the two fitting hole groups are respectively provided at both ends of the dust collecting member in the width direction,

the two matched bulge groups are respectively arranged at two axial ends of the driving wheel.

6. An air conditioner according to claim 3, wherein at least one limiting wheel rotatable about its central axis is provided in the dust box, the limiting wheel being located between the two driving wheels, and wherein the dust collecting member is wound around the limiting wheel.

7. The air conditioner according to claim 1, wherein the heat exchange module is provided with at least one rack which is located at one side in the width direction of the filter screen and extends in the length direction of the filter screen,

at least one end of the dust collection box in the length direction is provided with a gear meshed with the rack and a second driving motor connected with the gear.

8. The air conditioner of claim 1, wherein the dust discharge port is formed at the center in the length direction of the dust box.