CN220507831U - Cleaning device for heat exchanger and air conditioner - Google Patents

Abstract

The application relates to the technical field of intelligent household appliances and discloses a cleaning device for a heat exchanger, comprising a cleaning assembly, a cleaning assembly and a sound wave transducer. The cleaning assembly is movably arranged on the surface of the heat exchanger; the water receiving disc is arranged at the side of the heat exchanger and is positioned on the moving path of the cleaning assembly, and cleaning liquid is filled in the water receiving disc; the sound wave transducer is arranged below the water receiving disc; and under the condition that the cleaning assembly moves into the water receiving disc, the sound wave transducer is started to clean the cleaning assembly. Therefore, the dust and impurities of the heat exchanger can be conveniently cleaned, the dust and impurities of the cleaning assembly can be conveniently cleaned, and the user experience is improved. The application also discloses an air conditioner.

Description

Cleaning device for heat exchanger and air conditioner

Technical Field

The application relates to the technical field of intelligent household appliances, for example, to a cleaning device for a heat exchanger and an air conditioner.

Background

The current indoor unit of the air conditioner mainly exchanges indoor air through a heat exchanger and a fan system, wherein the heat exchanger is arranged at the side of the fan system. Along with the long-term operation of the indoor unit of the air conditioner, dust, flock and other dirt in the air can be attached to the heat exchanger, and if excessive dirt accumulated on the surface of the heat exchanger is not cleaned in time, germs can be bred, even peculiar smell is generated, and secondary pollution of the indoor air is caused; in addition, the heat exchange amount is also affected, thereby affecting the performance of the air conditioner.

At present, the heat exchanger is cleaned mainly by a dust collection device, such as sucking dust on the heat exchanger; or cleaning dust on the heat exchanger through a brush; or the driving mechanism drives the brush and the dust collection device to move simultaneously to clean the dust of the heat exchanger. For example, a related art provides a cleaning device for a heat exchanger, including a first moving assembly, a second moving assembly and a brush, where the first moving assembly includes two first rails extending in parallel, and a first slider and a second slider are disposed on each of the first rails; the second moving assembly is provided with two second guide rails which extend in parallel, and the two second guide rails are respectively and correspondingly fixedly connected with the two first sliding blocks and the two second sliding blocks; two ends of the hairbrush are respectively and fixedly connected to two third sliding blocks, and the first driving mechanism can drive the hairbrush to slide along the length direction of the heat exchanger; the second driving mechanism can drive the hairbrush to move along the width direction of the heat exchanger, so that the hairbrush can effectively clean gaps between the radiating fins, the cleaning is cleaner, the cleaning effect is better, and the automatic cleaning of the heat exchanger is realized.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the heat exchanger in the related art can clean the dust through cleaning the subassembly, but along with long-time use, clean the subassembly of cleaning of dust also can adhere to dust and impurity for clean the subassembly and lose the ability of cleaning gradually, if need clear up clean the subassembly, probably need unpack whole air conditioning indoor set apart, lead to user experience relatively poor.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a cleaning device and air conditioner for heat exchanger, both convenient clearance heat exchanger's dust and impurity, dust and the impurity of still convenient clearance cleaning assembly improve user experience.

In some embodiments, the cleaning apparatus for a heat exchanger includes a sweep assembly, a water pan, and a sonic transducer. The cleaning assembly is movably arranged on the surface of the heat exchanger; the water receiving disc is arranged at the side of the heat exchanger and is positioned on the moving path of the cleaning assembly, and the water receiving disc is used for containing cleaning liquid; the sound wave transducer is arranged below the water receiving disc; and under the condition that the cleaning assembly moves into the water receiving disc, the sound wave transducer is started to clean the cleaning assembly.

In some embodiments, the drip tray is located below the heat exchanger.

In some embodiments, the side of the heat exchanger is provided with a movement mechanism, and the end of the sweeping assembly is connected to the movement mechanism.

In some embodiments, the movement mechanism includes a guide rail and a movement assembly. The guide rails are arranged at two side parts of the heat exchanger, wherein the bottom ends of the guide rails are positioned in the water receiving disc; the moving assembly is arranged on the guide rail and is connected with the cleaning assembly, so that the cleaning assembly can be positioned in the water receiving tray under the condition that the moving assembly drives the cleaning assembly to move to the bottom end of the guide rail.

In some embodiments, the cleaning assembly includes a brush and a dust cap. The hairbrush is connected with the moving assembly; the dust cover is covered on the surface of the hairbrush which is away from the side of the heat exchanger.

In some embodiments, the bottom of the drip tray is provided with a drain, and a control valve is provided on the drain.

In some embodiments, a liquid level sensor is disposed within the drip tray for detecting the level of liquid within the drip tray.

In some embodiments, the cleaning device for a heat exchanger further comprises: the liquid supply box is communicated with the water receiving disc through a liquid supply pipe so as to provide cleaning liquid for the water receiving disc.

In some embodiments, in the case where two or more heat exchangers are provided, an empty space is provided between adjacent heat exchangers, and the cleaning assembly is moved to the empty space after the cleaning is completed.

In some embodiments, the air conditioner comprises a cleaning device for a heat exchanger as described in the previous embodiments.

The cleaning device and the air conditioner for the heat exchanger provided by the embodiment of the disclosure can realize the following technical effects:

the cleaning assembly is movably arranged on the surface of the heat exchanger, so that dust and impurities on the surface of the heat exchanger can be cleaned, and the heat exchange performance of the heat exchanger is guaranteed. The cleaning liquid is filled in the water receiving disc, and the water receiving disc is arranged on the side of the heat exchanger and is positioned on the moving path of the cleaning assembly, so that the cleaning assembly can move into the water receiving disc. At this time, the cleaning assembly is stopped, the sound wave transducer positioned below the water receiving disc is started, and the sound energy of the power ultrasonic frequency source is converted into mechanical vibration through the sound wave transducer, so that the cleaning liquid is driven to vibrate, the cleaning assembly soaked in the cleaning liquid area is cleaned, and impurities and dust on the cleaning assembly fall into the water receiving disc. Compared with a manual cleaning component, the cleaning component has the characteristics of convenience, rapidness and the like. Therefore, the dust and impurities of the heat exchanger can be conveniently cleaned, and the dust and impurities of the cleaning assembly can be conveniently cleaned, so that the performance of the air conditioner is further ensured, and the user experience is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic view of a cleaning apparatus for a heat exchanger according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a cleaning apparatus for a heat exchanger according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of an acoustic wave transducer according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a cleaning assembly provided in accordance with an embodiment of the present disclosure;

FIG. 5 is a schematic illustration of a connection of a drip tray with a liquid supply tank provided by an embodiment of the present disclosure;

fig. 6 is a schematic diagram of a structure for an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a second configuration for an air conditioner according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of the connection of modules in a cleaning device for a heat exchanger provided in an embodiment of the present disclosure.

Reference numerals:

10: a cleaning assembly; 11: a brush; 12: a dust cover;

20: a water receiving tray; 21: a liquid discharge pipe; 22: a control valve; 23: a liquid level sensor;

30: an acoustic wave transducer;

40: a moving mechanism; 41: a guide rail; 42: a moving assembly;

50: a liquid supply tank; 51: a liquid supply pipe; 52: a water pump;

60: a controller;

100: a heat exchanger; 101: empty areas.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

Referring to fig. 1, an embodiment of the present disclosure provides a cleaning apparatus for a heat exchanger, including a cleaning assembly 10, a water pan 20, and a sonic transducer 30. A cleaning assembly 10 movably disposed on the surface of the heat exchanger 100; the water pan 20 is arranged on the side of the heat exchanger 100 and positioned on the moving path of the cleaning assembly 10, and cleaning liquid is filled in the water pan 20; the sound wave transducer 30 is arranged below the water pan 20; wherein the sonic transducer 30 is activated to clean the cleaning assembly 10 with the cleaning assembly 10 moved into the drip pan 20.

The cleaning assembly 10 is movably arranged on the surface of the heat exchanger, so that dust and impurities on the surface of the heat exchanger can be cleaned, and the heat exchange performance of the heat exchanger is ensured. The cleaning liquid is contained in the water pan 20, and the water pan 20 is provided on the heat exchanger side and is located on the moving path of the cleaning assembly 10, so that the cleaning assembly 10 can be moved into the water pan 20. At this time, the cleaning assembly 10 is stopped, the acoustic transducer 30 positioned below the water pan 20 is started, and the acoustic energy of the power ultrasonic frequency source is converted into mechanical vibration through the acoustic transducer 30, so that the cleaning liquid is driven to vibrate, the cleaning assembly 10 soaked in the cleaning liquid area is cleaned, and impurities and dust on the cleaning assembly 10 fall into the water pan 20. Compared with the manual cleaning and sweeping assembly 10, the cleaning and sweeping device has the characteristics of convenience, rapidness and the like. Therefore, the dust and impurities of the heat exchanger can be conveniently cleaned, and the dust and impurities of the cleaning assembly 10 can be conveniently cleaned, so that the performance of the air conditioner is further ensured, and the user experience is improved.

In the case of prolonged use, dust and foreign matter may adhere to the cleaning assembly 10. And the adhesion of dust and foreign matter on the cleaning assembly 10 is stronger, dust and foreign matter may not be removed if simply brushing. In the embodiment of the present disclosure, the original structure of the water pan 20 is improved, and the cleaning assembly 10 is moved into the water pan 20, and as shown in fig. 1 and 3, the acoustic energy is converted into high-frequency mechanical vibration by the acoustic transducer 30 and is transmitted into the cleaning liquid, so that the cleaning liquid vibrates reciprocally at a high speed. In the vibrating negative pressure area, countless tiny vacuum bubbles can be formed due to the fact that surrounding liquid is not replenished; in the vibrating positive pressure region, the tiny vacuum bubbles are suddenly closed under pressure, and during the closing process, strong impact waveforms are generated due to mutual collision between the liquids to form instant high pressure, and act on the cleaning assembly 10. So that dust and foreign matters adhered to the cleaning assembly 10 are rapidly separated under the continuous instant high pressure effect, thereby achieving the cleaning purpose.

In some embodiments, the material of the drip tray 20 includes stainless steel. Thus, the sonic transducer 30 can sufficiently drive the cleaning liquid to vibrate reciprocally at a high speed. Here, stainless steel has good sound conductivity, corrosion resistance, heat resistance, low temperature strength, and mechanical characteristics, as compared with a water pan made of plastic, so that vibration transmitted from the acoustic wave transducer 30 to the cleaning liquid is not attenuated. Alternatively, in some embodiments, the cleaning solution may be clear water, a mixed liquid of clear water and disinfectant, or a mixed liquid of clear water and fragrance, or the like.

As shown in connection with fig. 1, in some embodiments, the drip tray 20 is positioned below the heat exchanger 100. In this way, not only can the condensed water flowing out of the heat exchanger 10 be received, but also the cleaning assembly 10 can be conveniently moved into the water receiving disc 20.

In the implementation of the present disclosure, in order for the water pan 20 to be able to hold enough cleaning liquid, here, the side wall of the water pan 20 is raised, so that the depth of the water pan 20 becomes deeper, and more cleaning liquid and water can be held.

The liquid level of the cleaning solution in the water pan 20 is at least higher than a part or all of the cleaning assembly 10, so that when the part of the cleaning assembly 10 is immersed in the cleaning solution, the sonic transducer 30 is started, and the cleaning assembly 10 is driven to rotate in the water pan 20, so that different positions of the cleaning assembly 10 are driven to be sequentially contacted with the cleaning solution. In this way, the acoustic energy of the power ultrasonic frequency source is converted into mechanical vibration through the acoustic wave transducer 30, so that the cleaning liquid is driven to vibrate, and the cleaning assembly 10 soaked in the cleaning liquid area is cleaned, so that impurities and dust on the cleaning assembly 10 fall into the water receiving disc 20. In the case where the entire area of the cleaning assembly 10 is immersed in the cleaning liquid, the entire cleaning assembly can be cleaned without driving the cleaning assembly 10 to rotate in the water pan 20.

As shown in connection with fig. 2, in some embodiments, the sides of the heat exchanger 100 are provided with a movement mechanism 40, and the ends of the cleaning assembly 10 are connected to the movement mechanism 40. To move the cleaning assembly 10.

In the embodiment of the present disclosure, the cleaning assembly 10 is driven to move on the surface of the heat exchanger 100 by the moving mechanism 40, so that the cleaning assembly 10 can clean dust on the surface of the heat exchanger 100. Wherein the moving mechanism 40 is disposed around the outside of the heat exchanger 100 for more complete cleaning of the heat exchanger, thus enabling the cleaning assembly 10 to clean two planes of the heat exchanger.

In the disclosed embodiment, the movement mechanism 40 is capable of controlling the movement position of the cleaning assembly 10, such as moving the cleaning assembly 10 into the drip pan 20, or moving the cleaning assembly 10 over the first side or the second side. To avoid the sweeping assembly 10 from affecting the heat exchange of the heat exchanger 100.

In some embodiments, as shown in connection with fig. 1 or 2, where two or more heat exchangers 100 are provided, an empty space is provided between adjacent heat exchangers, and the cleaning assembly 10 is moved to the empty space 101 after the cleaning is completed. In this way, the cleaning assembly 10 can be positioned between two heat exchangers, so that the heat exchange surface of the heat exchangers is not blocked, and the heat exchange of the heat exchanger 100 is not affected.

In the disclosed embodiment, the movement mechanism 40 controls the movement of the sweep assembly 10 to the empty region 101 when the sweep heat exchanger is completed. In the event that a sweep of the heat exchanger is desired, the movement mechanism 40 controls the removal of the sweep assembly 10 from the empty region 101. When the cleaning assembly 10 needs to be cleaned, the moving mechanism 40 controls the cleaning assembly 10 to move into the water pan 20.

As shown in connection with fig. 2, in some embodiments, the movement mechanism 40 includes: the guide rails 41 are arranged at two side parts of the heat exchanger 100, wherein the bottom ends of the guide rails 41 are positioned in the water receiving tray 20; the moving component 42 is disposed on the guide rail 41 and connected with the cleaning component 10, so that the cleaning component 10 can be located in the water pan 20 under the condition that the moving component 42 drives the cleaning component 10 to move to the bottom end of the guide rail 41.

In the implementation of the present disclosure, two annular guide rails 41 are provided at both side portions of the heat exchanger 100. Wherein, in order to be convenient for clean the subassembly 10 and enter into the water collector 20, the length and the width of water collector 20 are all greater than the plane width and the length that the bottom of two annular guide rails 41 encloses to close to the bottom of two annular guide rails 41 is located water collector 20. Thus, the cleaning assembly 10 is able to enter the drip tray 20 along the guide rail 41.

In the implementation of the present disclosure, the two annular guide rails 41 are provided with moving assemblies 42, and both ends of the cleaning assembly 10 are connected with the moving assemblies 42. The two moving assemblies 42 may have the same structure or different structures. In the case where the two moving assemblies 42 are of the same structure, both the moving assemblies 42 have driving capability, that is, the moving assemblies 42 are simultaneously driven to move by the two moving assemblies 42; in the case where the two moving assemblies 42 are not of the same structure, one of the moving assemblies 42 has a driving capability, and the other is driven, so that the moving assembly 42 is driven to move by the one moving assembly 42.

In the practice of the present disclosure, the guide rail may be a rolling guide rail, and the moving assembly 42 is a driving motor capable of moving on the rolling guide rail, and a driving end of the driving motor is connected with the cleaning assembly 10.

As shown in connection with fig. 4, in some embodiments, the cleaning assembly 10 includes: a brush 11 connected to the moving assembly 42; a dust cover 12 covering the outer surface of the brush 11.

In the embodiment of the disclosure, the driving end of the driving motor is in driving connection with the brush 11 to drive the brush 11 to rotate, the dust cover 12 is connected with the driving end of the driving motor through the bearing structure, and thus the dust cover 12 can block dust on the brush 11 and prevent water stains and dust on the brush 11 from falling into the indoor unit.

To enable a certain amount of cleaning liquid to be added to the water pan 20 and to drain the cleaning liquid after the cleaning is completed, as shown in fig. 5, in some embodiments, a drain pipe 21 is provided at the bottom of the water pan 20, and a control valve 22 is provided on the drain pipe 21.

In the embodiment of the present disclosure, the water pan 20 is required to not only receive condensed water of the heat exchanger 100, but also to add cleaning liquid, and also to ensure that the condensed water does not flow out of the water pan 20, and therefore, a control valve 22 is provided in the drain pipe 21 of the water pan 20, and whether the cleaning liquid is discharged is controlled by the control valve 22.

Optionally, in an embodiment of the present disclosure, as shown in connection with fig. 5 and 8, the cleaning apparatus for a heat exchanger further includes a controller 60, where the controller 60 is communicatively connected to the control valve 22, and further controls the on-off state of the control valve 22.

In the disclosed embodiment, the controller 60 is also communicatively coupled to the movement assembly 42 and the sonic transducer 30, respectively, such that the movement assembly 42 is enabled to activate the sonic transducer 30 after the cleaning assembly 10 is controlled to enter the drip pan 20.

In some embodiments, a level sensor 23 is provided within the drip tray 20 for detecting the level of liquid within the drip tray 20. The level sensor 23 is communicatively coupled to the controller 60.

In the disclosed embodiment, the level sensor 23 is capable of detecting the level of the liquid in the drip tray 20. In this way, when the cleaning liquid is added to the water collection tray 20, it can be determined whether or not the cleaning liquid has been added to the set threshold value by the sensing signal of the liquid level sensor 23. At this time, if the set threshold is reached, the stop of the addition of the cleaning liquid may be controlled. When the cleaning unit is not in use, it is also possible to determine whether or not the condensed water in the water pan 20 exceeds a threshold value by the sensing signal of the liquid level sensor 23, and if the threshold value is exceeded, the controller 60 controls the control valve 22 to be in an open state, thereby discharging the condensed water.

To facilitate the addition of cleaning fluid to the drip tray 20, as shown in connection with fig. 5 and 8, in some embodiments, the cleaning apparatus for a heat exchanger further comprises: the liquid supply tank 50 is communicated with the water receiving tray 20 through a liquid supply pipe 51 to supply cleaning liquid to the water receiving tray 20.

In the embodiment of the present disclosure, the filter screen is provided at the liquid supply pipe 51, so that the cleaning liquid entering into the water pan 20 can be filtered, and the foreign matters are prevented from entering into the water pan 20. The cleaning solution may be added from the liquid supply tank 50 when the cleaning solution is needed to be added to the water receiving tray 20, while a fixed amount of cleaning solution is pre-stored in the liquid supply tank 50.

Alternatively, the liquid supply tank 50 supplies liquid to the liquid supply pipe 51 through the water pump 52, where the water pump 52 is communicatively connected to the controller 60, so that the flow rate of the cleaning liquid into the water pan 20 can be controlled.

In connection with the above embodiments, the controller 60 is communicatively coupled to the control valve 22, the level sensor 23, the acoustic transducer 30, the movement assembly 42, and the water pump 52, respectively. Thus, when the cleaning unit 10 needs to be cleaned, the cleaning liquid is injected into the water pan 20 by the water pump 52; when the liquid level sensor 23 detects that the liquid level reaches the set threshold value, the water pump 52 is controlled to stop and the moving assembly 42 is controlled to drive the cleaning assembly 10 to move into the water pan 20, and the acoustic wave transducer 30 is started at the moment; after the cleaning, the moving component 42 is controlled to drive the cleaning component 10 to leave the water pan 20, and at the moment, the control valve 22 is opened to discharge the sewage.

As shown in conjunction with fig. 6 and 7, embodiments of the present disclosure also provide an air conditioner including the cleaning device for a heat exchanger as described in the previous embodiments.

In the embodiment of the present disclosure, the type of the air conditioner may be a hanging type air conditioner, a cabinet type air conditioner, a ceiling type air conditioner, a window type air conditioner, a central air conditioner, or the like.

In the embodiments of the present disclosure, the air conditioner includes the cleaning device for the heat exchanger, and reference is made to the above embodiments, so that the air conditioner has at least the beneficial effects brought by the technical solutions of the above embodiments, which are not described in detail herein.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A cleaning device for a heat exchanger, comprising:

the cleaning assembly is movably arranged on the surface of the heat exchanger;

the water receiving disc is arranged at the side of the heat exchanger and is positioned on the moving path of the cleaning assembly, and the water receiving disc is used for containing cleaning liquid;

the sound wave transducer is arranged below the water receiving disc; and under the condition that the cleaning assembly moves into the water receiving disc, the sound wave transducer is started to clean the cleaning assembly.

2. The cleaning apparatus of claim 1, wherein the water pan is positioned below the heat exchanger.

3. A cleaning device according to claim 2, wherein the side of the heat exchanger is provided with a displacement mechanism, and the end of the sweeping assembly is connected to the displacement mechanism.

4. A cleaning device according to claim 3, wherein the movement mechanism comprises:

the guide rails are arranged at two side parts of the heat exchanger, wherein the bottom ends of the guide rails are positioned in the water receiving disc;

the moving assembly is arranged on the guide rail and is connected with the cleaning assembly, so that the cleaning assembly can be positioned in the water receiving tray under the condition that the moving assembly drives the cleaning assembly to move to the bottom end of the guide rail.

5. The cleaning device of claim 4, wherein the sweeping assembly comprises:

the hairbrush is connected with the moving assembly;

the dust cover is covered on the surface of the hairbrush which is away from the side of the heat exchanger.

6. A cleaning device according to any one of claims 1 to 5, wherein the bottom of the drip tray is provided with a drain, and a control valve is provided on the drain.

7. The cleaning apparatus of claim 6, wherein a liquid level sensor is disposed within the drip tray for detecting the level of liquid in the drip tray.

8. The cleaning device of any one of claims 1 to 5, further comprising:

the liquid supply box is communicated with the water receiving disc through a liquid supply pipe so as to provide cleaning liquid for the water receiving disc.

9. A cleaning apparatus according to any one of claims 1 to 5, wherein in the case where two or more heat exchangers are provided, a free space is provided between adjacent heat exchangers, and the cleaning assembly is moved to the free space after cleaning is completed.

10. An air conditioner comprising the cleaning device for a heat exchanger according to any one of claims 1 to 9.