阅读说明：本技术 一种空调室内机、空调器及空调自清洁控制方法 (Air conditioner indoor unit, air conditioner and air conditioner self-cleaning control method ) 是由 刘娟 李建科 杨欢 荆涛 蔡泽瑶 马振豪 吕科磊 王亮 程杰 于 2021-04-29 设计创作，主要内容包括：本发明涉及空调技术领域,公开了一种空调室内机、空调器及空调自清洁控制方法,其中空调室内机包括机壳和设于机壳内部的蒸发器和风扇,还包括：设于蒸发器和风扇之间的集水器,集水器呈半包围结构,且集水器的开口朝向蒸发器,集水器用于在室内机进行自清洁化霜操作时将蒸发器表面的水流汇集流向风扇。本发明提供的一种空调室内机、空调器及空调自清洁控制方法,设置集水器在自清洁化霜操作时将蒸发器表面的水流汇聚引至风扇上,使得自清洁下蒸发器表面的水流不仅能流经蒸发器的表面,还能够利用水流对风扇起到冲洗清洁作用,实现清洁风扇风道的效果；通过室内机自身即可实现风扇的清洁,可减少人力劳动,有利于提高清洁效率且降低成本。(The invention relates to the technical field of air conditioners, and discloses an air conditioner indoor unit, an air conditioner and an air conditioner self-cleaning control method, wherein the air conditioner indoor unit comprises a casing, an evaporator and a fan, wherein the evaporator and the fan are arranged in the casing, and the air conditioner indoor unit further comprises: and the water collector is arranged between the evaporator and the fan, is of a semi-surrounding structure, has an opening facing the evaporator, and is used for collecting water flow on the surface of the evaporator to the fan when the indoor unit performs self-cleaning defrosting operation. According to the air conditioner indoor unit, the air conditioner and the air conditioner self-cleaning control method, the water collector is arranged to collect water flow on the surface of the evaporator to the fan during self-cleaning defrosting operation, so that the water flow on the surface of the evaporator under self-cleaning can flow through the surface of the evaporator, the water flow can be used for washing and cleaning the fan, and the effect of cleaning an air channel of the fan is achieved; the cleaning of the fan can be realized through the indoor unit, the labor can be reduced, the cleaning efficiency can be improved, and the cost can be reduced.)

1. The utility model provides an indoor unit of air conditioner, includes the casing and locates inside evaporimeter and the fan of casing, the evaporimeter is located the top of fan, its characterized in that still includes: the water collector is arranged between the evaporator and the fan, the water collector is of a semi-surrounding structure, an opening of the water collector faces the evaporator, and the water collector is used for collecting water flow on the surface of the evaporator to the fan when the indoor unit carries out self-cleaning defrosting operation.

2. An indoor unit of an air conditioner according to claim 1, wherein the water collector is provided along a length direction of the casing, and both ends of the water collector are respectively movably provided up and down with respect to the casing.

3. An indoor unit of an air conditioner according to claim 2, further comprising an up-and-down driving structure fixed to the casing or a tube plate of the evaporator, wherein the up-and-down driving structure is connected to at least one end of the water collector, and the up-and-down driving structure is configured to drive the water collector to move so that a side of the water collector contacts the evaporator when the indoor unit performs a self-cleaning defrosting operation.

4. An indoor unit of an air conditioner according to any one of claims 1 to 3, wherein the water collector includes a water collection plate, and the water collection plate is provided with an opening therethrough.

5. An indoor unit of an air conditioner according to claim 4, wherein the opening has a strip shape; the water collecting plate is provided with a plurality of rows of openings, and any row of openings comprises a plurality of openings which are sequentially arranged at intervals along the length direction of the casing.

6. An indoor unit of an air conditioner according to claim 5, wherein the width of the opening is larger than a space between adjacent two openings.

7. An indoor unit of an air conditioner according to any one of claims 1 to 3, wherein a drain pipe is connected to a bottom of the casing.

8. An air conditioner characterized by comprising the indoor unit of an air conditioner according to any one of claims 1 to 7.

9. An air conditioner self-cleaning control method based on the air conditioner of claim 8, characterized by comprising:

controlling the refrigeration operation of the air conditioner to perform frosting operation;

after the frosting operation lasts for a first preset time, controlling the heating operation of the air conditioner to defrost;

during defrosting operation, controlling the side edge of the water collector to be connected with the evaporator, and controlling the fan to rotate to clean the fan and the air channel;

and after the defrosting operation lasts for a second preset time, controlling the heating operation of the air conditioner to dry.

10. The self-cleaning control method for air conditioner as claimed in claim 9, further comprising before said controlling the air conditioner cooling operation to perform the frosting operation:

receiving a self-cleaning instruction; wherein the self-cleaning instructions comprise remote instructions.

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit, an air conditioner and an air conditioner self-cleaning control method.

Background

After the air conditioner works for a certain time, the refrigerating or heating effect of the air conditioner is obviously reduced, and the air conditioner is accompanied with some strange odor. The reason is that floating dust and other substances generated by indoor activities of people can be accumulated on an air duct of an indoor unit of the air conditioner, so that the refrigerating or heating effect of the air conditioner is influenced, in addition, because the dirt and the pollutants carry bacteria, a plurality of molds, bacteria and germs can be bred, and when the air conditioner works again, the bacteria can be quickly dispersed into indoor air under certain conditions, so that the content of the bacteria in the air is increased, and the quality of the indoor air is influenced.

The automatically cleaning of wall-hanging indoor set of present domestic air conditioner is mostly to the cleanness of evaporimeter, unable self-cleaning wind channel fan isotructure, and the washing of wind channel fan needs to be pulled down spare parts such as the outside buckle of air conditioner by professional service personnel, takes out the fan washing, washs the back repacking air conditioner that finishes, adorns spare parts such as outside buckle, and the cleanness is once wasted time and energy.

Disclosure of Invention

The invention provides an air conditioner indoor unit, an air conditioner and an air conditioner self-cleaning control method, which are used for solving the problems that the cleaning of a duct fan in the existing indoor unit needs manual disassembly for cleaning, and time and labor are wasted.

The invention provides an air-conditioning indoor unit, which comprises a casing, an evaporator and a fan, wherein the evaporator and the fan are arranged in the casing, the evaporator is arranged above the fan, and the air-conditioning indoor unit further comprises: the water collector is arranged between the evaporator and the fan, the water collector is of a semi-surrounding structure, an opening of the water collector faces the evaporator, and the water collector is used for collecting water flow on the surface of the evaporator to the fan when the indoor unit carries out self-cleaning defrosting operation.

According to the indoor unit of the air conditioner, the water collector is arranged along the length direction of the shell, and two ends of the water collector are respectively and movably arranged up and down relative to the shell.

The indoor unit of the air conditioner provided by the invention further comprises an up-and-down driving structure, the up-and-down driving structure is fixed on the shell or a tube plate fixed on the evaporator, at least one end of the water collector is connected with the up-and-down driving structure, and the up-and-down driving structure is used for driving the water collector to move when the indoor unit carries out self-cleaning defrosting operation so that the side edge of the water collector is in contact with the evaporator.

According to the indoor unit of the air conditioner, the water collector comprises a water collecting plate, and a through opening is formed in the water collecting plate.

According to the air conditioner indoor unit provided by the invention, the opening is strip-shaped; the water collecting plate is provided with a plurality of rows of openings, and any row of openings comprises a plurality of openings which are sequentially arranged at intervals along the length direction of the casing.

According to the air conditioner indoor unit provided by the invention, the width of the opening is larger than the distance between two adjacent openings.

According to the air conditioner indoor unit provided by the invention, the bottom of the shell is connected with the drain pipe.

The invention also provides an air conditioner which comprises the air conditioner indoor unit.

The invention also provides an air conditioner self-cleaning control method based on the air conditioner, which comprises the following steps: controlling the refrigeration operation of the air conditioner to perform frosting operation; after the frosting operation lasts for a first preset time, controlling the heating operation of the air conditioner to defrost; during defrosting operation, controlling the side edge of the water collector to be connected with the evaporator, and controlling the fan to rotate to clean the fan and the air channel; and after the defrosting operation lasts for a second preset time, controlling the heating operation of the air conditioner to dry.

According to the air conditioner self-cleaning control method provided by the invention, before the air conditioner refrigeration operation is controlled and the frosting operation is carried out, the method further comprises the following steps: receiving a self-cleaning instruction; wherein the self-cleaning instructions comprise remote instructions.

According to the air conditioner indoor unit, the air conditioner and the air conditioner self-cleaning control method, the water collector is arranged to collect water flow on the surface of the evaporator to the fan during self-cleaning defrosting operation, so that the water flow on the surface of the evaporator under self-cleaning can flow through the surface of the evaporator to clean the evaporator, the fan can be washed and cleaned by the water flow, and the effect of cleaning an air channel of the fan is achieved; the indoor unit of the air conditioner can be used for cleaning the fan without dismounting the fan, so that the labor intensity can be reduced, the cleaning efficiency can be improved, and the cost can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is one of the schematic internal structural diagrams of an indoor unit of an air conditioner according to the present invention;

fig. 2 is a second schematic view of the internal structure of the indoor unit of the air conditioner according to the present invention;

FIG. 3 is a schematic diagram of an example of an up-down driving structure provided by the present invention;

FIG. 4 is a side schematic view of a sump provided by the present invention;

FIG. 5 is a schematic front view of a sump provided by the present invention;

fig. 6 is a schematic diagram of a self-cleaning control method of an air conditioner provided by the invention.

Reference numerals:

1: an evaporator; 2: a fan; 3: a water collector; 31: a water collection plate; 32: an opening; 33: a rib position; 4: an air deflector; 5: swinging the leaves left and right; 6: a wind deflector; 7: a drain pipe; 8: a rack; 9: a gear set; 10: a stepping motor shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The indoor unit of the air conditioner, the air conditioner and the self-cleaning control method of the air conditioner of the invention are described below with reference to fig. 1 to 6.

Referring to fig. 1, the present embodiment provides an indoor unit of an air conditioner, which includes a casing, and an evaporator 1 and a fan 2 disposed inside the casing, where the evaporator 1 is disposed above the fan 2. The evaporator 1 may have a half-enclosed structure, and is disposed above the fan 2 in a half-enclosed manner. This machine in air conditioning still includes: the water collector 3 is arranged between the evaporator 1 and the fan 2, the water collector 3 is of a semi-surrounding structure, an opening 32 of the water collector 3 faces the evaporator 1, and the water collector 3 is used for collecting water flow on the surface of the evaporator 1 to flow to the fan 2 when the indoor unit carries out self-cleaning defrosting operation.

The water collector 3 is in a semi-enclosed configuration, i.e. the water collector 3 is not in a closed ring shape, but in an unclosed configuration, such that the water collector 3 has an opening 32. The opening 32 of the water collector 3 is arranged to face upwards to the evaporator 1 and can be used for guiding and collecting water flow on the surface of the evaporator 1; further, the bottom of the sump 3 faces the fan 2, i.e., a lower portion of the sump 3 faces the fan 2. So that the water collected by the sump 3 flows toward the fan 2 along the sump 3.

When the indoor unit is self-cleaned, firstly frosting the surface of the evaporator 1, namely, the moisture in the air in the indoor unit is condensed and attached to the surface of the evaporator 1 through refrigeration operation; then, a defrosting operation is performed, that is, the temperature of the evaporator 1 is increased by a heating operation so that the frost on the surface of the evaporator 1 is melted to form a water flow. When the water collector 3 is not arranged for defrosting operation, water flow on the surface of the evaporator 1 flows along the evaporator 1, so that the cleaning effect on the evaporator 1 can be mainly realized, and the cleaning effect on the fan 2 and other parts of the air channel is poor.

And set up water collector 3 in the air conditioning indoor set that this embodiment provided, when the defrosting operation is carried out in the indoor set cleanness, the rivers on 1 surface of evaporimeter can flow along water collector 3, and the collection through water collector 3 gathers the effect, can lead rivers to fan 2 on for rivers can play the clean effect of washing to fan 2, the cleanness of realization fan 2 that can be better.

Further, the fan 2 can be used for rotating and running when the indoor unit performs self-cleaning defrosting operation; so as to throw water flow to each part inside the air duct through centrifugal action to realize the cleaning of the air duct. The fan 2 is rotated and operated during defrosting operation, and the whole cleaning of each part of the fan 2 can be realized through the rotation of the fan 2.

In the air-conditioning indoor unit provided by the embodiment, the water collector 3 is arranged to collect water flow on the surface of the evaporator 1 and guide the water flow to the fan 2 during the self-cleaning defrosting operation, so that the water flow on the surface of the evaporator 1 under self-cleaning can not only flow through the surface of the evaporator 1 to clean the evaporator 1, but also can utilize the water flow to wash and clean the fan 2, thereby realizing the effect of cleaning the air channel of the fan 2; this air conditioning indoor unit can need not to dismantle fan 2, can realize the cleanness of fan 2 through indoor unit self, reducible human labor is favorable to improving clean efficiency and reduce cost.

On the basis of the above embodiment, further, the water collector 3 is arranged along the length direction of the machine casing. Fig. 1 is a schematic cross-sectional view of an air conditioning indoor unit, and the left-right direction in fig. 1 is the width direction of a cabinet. The sump 3 is disposed along a length direction of the cabinet, that is, along a length direction of the evaporator 1, so that the sump 3 can collect more water flow on the surface of the evaporator 1 along the length direction of the evaporator 1.

Further, the length of the water collector 3 along the length direction of the machine shell is more than or equal to the length of the evaporator 1; the full water flow collection in the length direction of the casing is facilitated, all parts of the fan 2 are cleaned in the length direction of the casing, and the cleaning effect on the fan 2 is guaranteed.

Two ends of the water collector 3 are respectively movably arranged up and down relative to the machine shell. Namely, the water collector 3 can be arranged up and down movably. The position of the sump 3 can be flexibly adjusted so that the sump 3 is selectively spaced downward from the evaporator 1 or is upwardly in contact with the evaporator 1. When the water collector 3 and the evaporator 1 are arranged at intervals, namely, a distance exists between the side edge of the water collector 3 and the surface of the evaporator 1, at the moment, when the indoor unit performs self-cleaning defrosting operation, the water collector 3 cannot generate a flow guiding and converging water flow effect because of not contacting with the evaporator 1, the water flow on the surface of the evaporator 1 flows along the evaporator 1, and a small amount of water flows on the fan 2.

When the water collector 3 moves upwards to the side to contact with the evaporator 1, when the indoor unit performs defrosting operation by self-cleaning, water flow on the surface of the evaporator 1 flows along the evaporator 1, and when the water flow flows to the side of the water collector 3, the water flow flows along the water collector 3 under the guidance of the water collector 3, so that the water collector 3 can collect and collect the water flow on the surface of the evaporator 1, and guide part of the water flow to the fan 2, thereby realizing the cleaning of the fan 2.

In the initial state, the water collector 3 and the evaporator 1 can be arranged at intervals; that is, when the cleaning fan 2 is not required, the sump 3 is located below the evaporator 1 without contacting the evaporator 1. The initial state is suitable for the case when there is no need to clean the fan 2 or when the indoor unit is operating normally, i.e. without self-cleaning operation. The water collector 3 is arranged at an interval with the evaporator 1, so that smooth and sufficient contact of air flow inside the shell with the evaporator 1 is facilitated, and the influence on the refrigerating and heating effects of the indoor unit caused by interference of the air flow due to the arrangement of the water collector 3 is avoided.

In the embodiment, the water collector 3 is arranged to be movable up and down, so that the position of the water collector 3 can be flexibly adjusted, and the water collector 3 and the evaporator 1 are adjusted to be arranged at intervals when cleaning is not needed, so that smooth flowing of air flow is ensured, and normal use of the air conditioner is not influenced; when cleaning is needed, the water collector 3 is adjusted to be in contact with the evaporator 1, so that the function of guiding and converging water flow is achieved, and the fan 2 is cleaned; the arrangement is flexible.

On the basis of the above embodiment, further, the indoor unit of an air conditioner further includes an up-down driving structure, the up-down driving structure is fixed to the casing or a tube plate of the evaporator 1, at least one end of the water collector 3 is connected with the up-down driving structure, and the up-down driving structure is used for driving the water collector 3 to move so that the side edge of the water collector 3 contacts with the evaporator 1 when the indoor unit performs a self-cleaning defrosting operation.

Namely, an up-and-down driving structure is arranged to drive the water collector 3 to move up and down, so that the position of the water collector 3 is adjusted. The up-and-down driving structure is a linear driving structure and is used for providing linear movement in the up-and-down direction. The up-down driving structure is fixedly arranged on the shell or the tube plate of the evaporator 1. The upper and lower driving structure is arranged at the end part of the water collector 3, the end part of the water collector 3 is connected with the upper and lower driving structure, and the up and down movement can be realized under the driving of the upper and lower driving structure. Both ends of the water collector 3 can be movably arranged up and down, and an up-and-down driving structure can be connected to one end of the water collector 3, and also can be connected to both ends of the water collector 3.

Specifically, in the embodiment, an up-and-down driving structure is arranged at one end of the water collector 3; vertical guide rails are respectively connected to the tube plates of the shell or the evaporator 1 at positions corresponding to two ends of the water collector 3, and the two ends of the water collector 3 are movably connected with the vertical guide rails in a one-to-one correspondence manner, so that the vertical movable arrangement is realized; thereby providing a driving force to the sump 3 at one end to move the sump 3 up and down to adjust the position.

In another embodiment, an up-down driving structure can be further arranged at both ends of the water collector 3 respectively; both ends of the water collector 3 can be connected with the upper and lower driving structures in a one-to-one correspondence manner, so that driving force is provided for the water collector 3 at both ends respectively to drive the water collector 3 to move up and down to adjust the position. At this time, the end of the water collector 3 can be directly connected with the up-down driving structure to realize the up-down movable arrangement.

Further, the up-down driving structure may be a rack and pinion structure, a lead screw nut structure, or a cylinder structure. Referring to fig. 3, the specific arrangement of the rack and pinion structure is: the gear set 9 can be arranged and fixed on the shell or the tube plate, the gear set 9 is connected with a rotating shaft 10 of the stepping motor, and the rotating shaft 10 of the stepping motor is used for driving the gear set 9 to rotate; a rack 8 is arranged to be meshed with a gear set 9, the rack 8 can be movably fixed on a machine shell or a tube plate along the vertical direction, and the rack 8 is connected with the end part of the water collector 3; so that the rack 8 is driven to move in the vertical direction by the driving rotation of the gear set 9, and the water collector 3 can be driven to move up and down. Fig. 3 is a schematic diagram, and does not show a specific arrangement structure, and the specific number and arrangement position of the gears in the gear set 9 are not limited.

The concrete setting of screw-nut structure is: a screw rod can be arranged along the vertical direction, a nut is sleeved on the screw rod and is in threaded connection with the screw rod, the nut can be movably fixed on the shell or the tube plate along the vertical direction, and the nut is connected with the end part of the water collector 3; thereby the nut can be driven to move along the screw rod by the rotation of the screw rod, and the water collector 3 can be driven to move up and down.

The specific setting of cylinder structure is: the cylinder can be arranged along the vertical direction and can be fixedly arranged on the shell or the tube plate, and the piston end of the cylinder is connected with the end part of the water collector 3; thereby driving the water collector 3 to move up and down through the expansion of the cylinder piston.

The specific form of the up-and-down driving structure may be other, so as to provide a linear movement to drive the water collector 3 to adjust the position up and down, and is not limited specifically.

On the basis of the above embodiment, further, referring to fig. 4, the cross section of the water collector 3 may be V-shaped or arc-shaped; the shape of the evaporator can be other shapes, and the purpose of forming a semi-enclosed structure is to facilitate the side to contact with the surface of the evaporator 1 to guide the water flow and to converge the water flow, which is not limited in particular.

Further, the water collector 3 includes a water collecting plate 31, and an opening 32 is opened on the water collecting plate 31. By contacting the side of the water collection plate 31 with the surface of the evaporator 1, the water flow on the surface of the evaporator 1 can be guided to flow along the water collection plate 31, thereby playing a role of guiding the converged water flow. The water collecting plate 31 is provided with the opening 32, so that air flow can pass through the opening easily, and the influence of the arrangement of the water collector 3 on the air volume of the indoor unit during operation is avoided.

On the basis of the above embodiment, further, referring to fig. 5, the opening 32 is in a strip shape; the water collecting plate 31 is provided with a plurality of rows of openings 32, and any row of openings 32 comprises a plurality of openings 32 which are sequentially arranged at intervals along the length direction of the machine shell. That is, the strip-shaped openings 32 are arranged along the width direction of the water collection sheet 31; the width direction of the water collection plate 31 coincides with the width direction of the cabinet. The plurality of openings 32 in any one row are arranged along the length of the water collector 3. The left-right direction shown in fig. 5 is a longitudinal direction of the sump 3.

A plurality of rows of openings 32 are arranged, so that the water collecting plate 31 is of a grid structure, and smooth passing of air flow can be ensured; and the opening 32 is arranged along the width direction of the water collection plate 31, and can guide water flow to flow along the width direction of the water collection plate 31, thereby being beneficial to smoothly realizing the guide and convergence of the water flow.

In particular, when the cross-section of the water collector 3 is V-shaped, the water collector 3 may comprise two intersecting water collection plates 31, and the two water collection plates 31 intersect to form a V-shape. In this case, a row of openings 32 may be provided in each of the two water collection plates 31 in the longitudinal direction.

On the basis of the above embodiment, further, the width of the opening 32 is larger than the distance between two adjacent openings 32. That is, for any row of openings 32, the width of the opening 32 is greater than the spacing between two adjacent openings 32. For any row of openings 32, a rib 33 is formed between two adjacent openings 32, that is, the width of the opening 32 is greater than the width of the rib 33, and the openings 32 and the rib 33 shown in fig. 5 are only schematic and do not show specific dimensional relationship. The width that sets up opening 32 is greater than the width of muscle position 33, can guarantee the ventilation effect of water collector 3, and muscle position 33 size is less, is favorable to rivers along the smooth flow of muscle position 33 to the realization of smooth efficient is to the washing of fan 2.

Further, the width of the opening 32 may be 3-5 mm.

Furthermore, the surface of the rib position 33 is provided with a corrugated structure; that is, the surface of the rib 33 is concave-convex and not a flat plane, which facilitates the smooth flow of water. Specifically, the specific form of the corrugated structure on the surface of the rib 33 may be wave-shaped or other, so as to achieve smooth flow of water flow, and is not limited specifically. A corrugated structure may be provided on both sides of the rib locations 33.

On the basis of the above embodiment, further, referring to fig. 1, a drain pipe 7 is connected to the bottom of the cabinet. A water discharge pipe 7 for discharging water flow during cleaning may be connected to the bottom, i.e., a lower portion, of the cabinet.

Specifically, referring to fig. 1, in the present embodiment, an air duct is disposed inside a casing, the casing is provided with an air inlet and an air outlet, one end of the air duct is connected to the air inlet, the other end is connected to the air outlet, and an evaporator 1 and a fan 2 are both disposed in the air duct; a water collecting tank is arranged at the lowest part of the air duct, and a drain pipe 7 is connected to the water collecting tank; therefore, the water discharge pipe 7 can completely discharge water flow in the air duct, and water accumulation in the air duct is avoided.

Further, referring to fig. 1, an air deflector 4 and a left/right swing blade 5 are further disposed in the air duct of the casing. In the self-cleaning operation of the air conditioner, water can be thrown onto the air guide plate 4 and the left and right swinging blades 5 along with the rotation of the fan, so that the air guide plate 4 and the left and right swinging blades 5 can be cleaned. A wind shield 6 is arranged at the air outlet.

On the basis of the foregoing embodiments, further, the present embodiment provides an air conditioner including the air conditioning indoor unit according to any of the foregoing embodiments. Further, the air conditioner also comprises an outdoor unit.

On the basis of the foregoing embodiments, further, with reference to fig. 6, the present embodiment provides an air conditioner self-cleaning control method based on the foregoing air conditioner, where the air conditioner self-cleaning control method includes: controlling the refrigeration operation of the air conditioner to perform frosting operation; after the frosting operation lasts for a first preset time, controlling the heating operation of the air conditioner to defrost; during defrosting operation, the side edge of the water collector 3 is controlled to be connected with the evaporator 1, and the fan 2 is controlled to rotate to clean the fan 2 and the air channel; and after the defrosting operation lasts for a second preset time, controlling the heating operation of the air conditioner to dry.

The self-cleaning control method of the air conditioner comprises the following steps: firstly, the surface of the evaporator 1 is frosted through refrigeration operation; defrosting may be started after the cooling operation is performed for a first preset time, or defrosting may be started when the temperature of the surface of the evaporator 1 is detected and the duration of time during which the temperature of the surface of the evaporator 1 is lower than the frosting temperature reaches the first preset time. The defrosting operation is to control the heating operation of the air conditioner, and the temperature of the evaporator 1 is raised to melt the frost on the surface.

During defrosting operation, the side edge of the water collector 3 is controlled to be in contact with the evaporator 1, so that water on the surface of the evaporator 1 is guided by the water collector 3 to be gathered and then flows to the fan 2, and the fan 2 is cleaned; and meanwhile, the fan 2 is controlled to rotate, and the rotation of the fan 2 can throw water to each part of the air channel through centrifugal force to clean the air channel. The defrosting operation can be finished after the heating operation is carried out for a second preset time; or the temperature of the surface of the evaporator 1 can be detected, and the defrosting is finished when the duration that the temperature of the surface of the evaporator 1 is higher than the defrosting temperature reaches a second preset time. After the defrosting operation is finished, the air conditioner can be controlled to keep heating operation, and the air duct is dried.

According to the air conditioner self-cleaning control method, the fan 2 and the air channel can be cleaned by guiding the water flow to the fan 2, so that the fan 2 can be self-cleaned without dismounting the fan 2, the manpower labor is reduced, the cleaning efficiency is improved, and the cost is reduced.

On the basis of the above embodiment, further, before controlling the air-conditioning cooling operation and performing the frosting operation, the method further includes: receiving a self-cleaning instruction; wherein the self-cleaning instructions comprise remote instructions. Namely, the air conditioner carries out self-cleaning operation when receiving a self-cleaning instruction. A user can issue a self-cleaning instruction to the air conditioner remotely at the terminal. The air conditioner can be provided with a communication module for remote interaction.

Further, the self-cleaning command may further include a remote control command or a button command. The self-cleaning command can be issued to the air conditioner through remote control, and the self-cleaning button can be arranged on the air conditioner and used for issuing the self-cleaning command.

Further, the defrosting operation also comprises the step of closing the air outlet. Specifically close the deep bead 6 of air outlet department for the wind channel is the encapsulated situation at air outlet department, avoids rivers to flow out, and influences user experience. The water flow gathered in the air duct is discharged through the water discharge pipe 7.

Further, the air conditioner self-cleaning control method further comprises the following steps after the drying operation: and controlling the heating operation of the air conditioner to ensure that the actual temperature in the air duct reaches the preset temperature for high-temperature sterilization. The embodiment proposes that the evaporator 1 can be used for high-temperature sterilization to better and more thoroughly clean and ensure the indoor air quality.

Further, controlling the air conditioner to perform heating operation for high-temperature sterilization further comprises: and opening an air inlet and an air outlet of the air conditioner and operating the fan 2 to enable air to flow circularly. In the high-temperature sterilization operation, the indoor air can be circulated and flow through the high-temperature evaporator 1, so that the air flowing therethrough can be sterilized at high temperature. Not only carry out pasteurization through high temperature to wind channel inner part clean, still can disinfect to the room air, can play air-purifying's effect, be favorable to improving the functional and intelligent of air conditioner, promote user experience.

Further, the specific value of the preset temperature is not limited, so as to achieve a high temperature and a sterilization effect. Specifically, the temperature at the air inlet or the air outlet can be obtained as the actual temperature in the air duct; or the temperature in the air duct close to the evaporator 1 can be acquired as the actual temperature in the air duct; or the surface temperature of the evaporator 1 may be taken as the actual temperature in the air duct.

On the basis of the above embodiment, further, the operation of the fan 2 in the high-temperature sterilization operation specifically includes: controlling the fan 2 to rotate in the positive direction; or controls the fan 2 to rotate reversely. When controlling fan 2 forward rotation, control air conditioner heating operation and carry out pasteurization still includes: and the air guide structure of the air outlet is controlled, so that the air outlet is kept away from the human body. When fan 2 forward rotation, room air gets into the wind channel from the air intake, flows through and flows out from the air outlet behind the evaporimeter 1, for avoiding high temperature air-out to cause human uncomfortable, can control the wind-guiding structure of air outlet at the pasteurization in-process, controls the regulation to the air-out direction for the air-out avoids the human body, avoids the air-out directly to blow to the human body.

When the fan 2 rotates reversely, indoor air enters the machine body from the air outlet and flows out from the air inlet after flowing through the evaporator 1, and the air inlet can not blow directly to a human body generally, so that the air outlet direction at the air inlet can not be adjusted.

Further, the fan 2 operated in the high-temperature sterilization operation may specifically be: the fan 2 is controlled to rotate in the forward direction and rotate in the reverse direction alternately. Because when fan 2 forward rotation, room air gets into the wind channel from the air intake, flows out from the air outlet for the intracavity that admits air is cold air in the wind channel, and the intracavity that gives vent to anger is hot-air, thereby admits air the intracavity temperature can be lower, is unfavorable for pasteurization. And when fan 2 antiport, room air gets into the wind channel from the air outlet, flows out from the air intake for it is cold air to give vent to anger the intracavity in the wind channel, and the intracavity of admitting air is hot-air, thereby gives vent to anger the intracavity temperature and can be lower, is unfavorable for pasteurization. The air inlet cavity is a space between the air inlet and the evaporator 1 in the air duct; the air outlet cavity is the space between the evaporator 1 and the air outlet in the air duct.

Therefore, the present embodiment proposes to control the fan 2 to alternately operate in the forward direction and the reverse direction for the high temperature sterilization. Namely, the fan 2 is controlled to rotate forwards for a period of time and then rotate backwards for a period of time, and the operation is sequentially and alternately carried out. The air inlet cavity and the air outlet cavity in the air duct can reach higher temperature, high-temperature sterilization in the whole air duct can be realized, and the sterilization and cleaning effects are ensured.

On the basis of the above embodiment, further, the embodiment is a household air conditioner self-cleaning fan 2, air duct swing blades, air deflectors 4 and the like, and the self-cleaning can be realized without disassembling the air conditioner, so that the labor cost is saved, the cleaning automation is realized, and the intelligent development of products is improved. The purpose of this embodiment is to realize the purpose of air conditioner inner part self-cleaning with the lift of a new water collector 3 structure, satisfies the demand of air conditioner basic function and high-end function.

The main structure section of the automatic cleaning air conditioner is as shown in figure 1, and comprises a water collector 3, a small gear rack transmission mechanism and the like which are arranged on a tube plate of an evaporator 1 and are used as an up-and-down driving structure; the working principle is as follows: the sump 3 is spaced apart from the evaporator 1 when the air conditioner does not need to be cleaned, as shown in fig. 1; when it is necessary to clean the air conditioner, the water collector 3 is raised by the rack and pinion gear on the side tube plate, and the upper edge of the water collector 3 is in contact with the evaporator 1, as shown in fig. 2. The water collector 3 is of a V-shaped structure, the structure requirement can be changed into a long and wide size, the length is consistent with that of the evaporator 1, the body is provided with a vertical strip hole, and the strip hole is used for normal use without wind shielding.

The self-cleaning operation of the air conditioner is as follows: the function of frosting is started earlier, and evaporimeter 1 frosts, and the back defrosting that finishes, frost become water, and the water of evaporimeter 1 can flow down along 3 lateral walls of water collector, on dripping fan 2, 2 low rotational speeds of air conditioner fan operation this moment, and fan 2 low rotational speed is rotatory, and water is along fan 2 beginning centrifugal motion, and the deep bead 6 of air conditioner is in the closed condition this moment, and the air conditioner inner part is all washd by water. And water flows into the drain pipe 7 along the side wall of the air duct and is discharged out of the internal unit, the air conditioner is started in a low-speed heating state after being cleaned, and the air duct is dried. The WiFi function can be put into to the air conditioner, and the air conditioner can realize not networking at home's cell-phone, sets up self-cleaning stoving, and it can enjoy clean breeze to go home.

The invention mainly protects the air conditioner from being disassembled and self-cleaned and the structure mode; the transmission mode and structure of the water collector 3; according to the self-cleaning principle, the automatic cleaning air conditioner is completely not required to be disassembled and assembled, complete intelligent automatic cleaning and drying are achieved, and the competitiveness of products is directly improved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.