CN111043702B - Air conditioner air duct self-cleaning control method - Google Patents
Air conditioner air duct self-cleaning control method Download PDFInfo
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- CN111043702B CN111043702B CN201911395804.5A CN201911395804A CN111043702B CN 111043702 B CN111043702 B CN 111043702B CN 201911395804 A CN201911395804 A CN 201911395804A CN 111043702 B CN111043702 B CN 111043702B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims abstract description 26
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 5
- 230000008021 deposition Effects 0.000 claims description 30
- 239000012535 impurity Substances 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 12
- 238000001514 detection method Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
- F24F2221/225—Cleaning ducts or apparatus using a liquid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the field of air conditioners, and particularly provides a self-cleaning control method for an air duct of an air conditioner. The invention aims to solve the problem that the prior art can only adopt manual cleaning to ensure the user experience of the air duct of the air conditioner. The air conditioner comprises an indoor heat exchanger, an indoor fan and an air duct which are sequentially arranged, wherein air enters the indoor fan after being subjected to heat exchange by the indoor heat exchanger and finally blows to the indoor after entering the air duct along with the operation of the indoor fan, the indoor fan is a bidirectional fan, the forward direction is that the air is blown to the indoor through the indoor heat exchanger, and the reverse direction is that the air is blown to the indoor heat exchanger from the indoor, and the control method comprises the following steps: controlling the air conditioner to enter a refrigeration cycle; determining whether condensed water is formed on the surface of the indoor heat exchanger; when condensate water is formed on the surface of the indoor heat exchanger, the indoor fan is controlled to blow air reversely at a speed of V1. The invention can blow the sundries in the air duct to the indoor heat exchanger under the action of wind power, and then the sundries are adsorbed by the condensed water on the surface of the indoor heat exchanger, thereby cleaning the air duct.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a self-cleaning control method for an air conditioner air duct.
Background
When the air conditioner is used, the phenomenon of dust deposition can be avoided in the air duct, and the more serious the dust deposition condition is, the more the indoor air quality is reduced, and the trouble is caused to customers.
In the prior art, two methods are generally used for removing the deposited dust, one is to use a special tool to go deep into an air duct of the air conditioner for wiping, and the other is to design the air duct into a detachable form and clean the air duct after detaching the air duct. However, both of them have a great disadvantage that maintenance personnel must go to the home for service to solve, which increases the maintenance cost of the product, increases the payment cost of the user, and brings poor experience to the user.
Accordingly, there is a need in the art for a new solution to the problem in the prior art that the air duct of the air conditioner can only be cleaned manually to ensure the user experience.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem in the prior art that the air duct of the air conditioner can only be manually cleaned to ensure user experience, the present invention provides an air duct self-cleaning control method for an air conditioner, wherein the air conditioner comprises an indoor heat exchanger, an indoor fan and an air duct which are sequentially arranged, air enters the indoor fan after heat exchange through the indoor heat exchanger, enters the air duct along with the operation of the indoor fan, and is finally blown into the room, the air duct self-cleaning control method is characterized in that the indoor fan is a bidirectional fan, the air is blown to the room through the indoor heat exchanger in a forward direction, and the air is blown to the indoor heat exchanger from the room in a reverse direction, and the control method comprises:
controlling the air conditioner to enter a refrigeration cycle;
determining whether condensed water is formed on a surface of the indoor heat exchanger;
when condensate water is formed on the surface of the indoor heat exchanger, the indoor fan is controlled to reversely blow at a speed of V1.
In a preferred technical solution of the above air conditioner air duct self-cleaning control method, after the step of "controlling the air conditioner to enter the refrigeration cycle", the control method further includes:
controlling the indoor fan to blow air in a forward direction or a reverse direction at a speed of V2;
wherein V2 is less than V1.
In a preferred embodiment of the above air conditioner air duct self-cleaning control method, after the step of "controlling the indoor fan to blow air reversely at a speed of V1", the control method further includes:
and after the operation time delta T, controlling the air conditioner to exit from the air duct self-cleaning control method.
In the preferable technical solution of the above air conditioner air duct self-cleaning control method, "controlling the air conditioner to enter the refrigeration cycle" further comprises:
determining a measured value of deposition of impurities in the air duct;
and when the measured value of the deposition of the impurities is greater than or equal to the preset value, controlling the air conditioner to enter a refrigeration cycle.
In a preferred embodiment of the above air conditioner air duct self-cleaning control method, after the step of "controlling the indoor fan to blow air reversely at a speed of V1", the control method further includes:
re-determining the measured value of the deposition of the impurities in the air duct;
and when the measured value of the deposition of the impurities is smaller than the preset value, controlling the air conditioner to exit from the air duct self-cleaning control method.
In a preferred embodiment of the above method for controlling self-cleaning of an air duct of an air conditioner, after the step of "re-determining the measured value of deposit of impurities in the air duct", the method further comprises:
and returning to the step of controlling the air conditioner to enter the refrigeration cycle when the measured value of the deposition of the impurities is still larger than or equal to the preset value.
In a preferred embodiment of the above air conditioner air duct self-cleaning control method, after the step of "controlling the indoor fan to blow air reversely at a speed of V1", the control method further includes:
controlling the air conditioner to enter a self-cleaning mode of an indoor heat exchanger;
the self-cleaning mode of the indoor heat exchanger refers to controlling the indoor heat exchanger to form a large amount of condensed water, and discharging sundries attached to the condensed water through a drainage system.
The invention also provides an air conditioner, which comprises a controller and is characterized in that the controller is configured to be capable of executing the air conditioner air duct self-cleaning control method in any one of the technical schemes.
In the preferable technical scheme of the air conditioner, the indoor fan is a cross-flow fan.
In the preferable technical scheme of the air conditioner, the cross-flow fan is a fan which can realize speed adjustment in both directions.
The technical scheme includes that the air conditioner comprises an indoor heat exchanger, an indoor fan and an air duct which are sequentially arranged, air enters the indoor fan after being subjected to heat exchange through the indoor heat exchanger, enters the air duct along with the operation of the indoor fan and is finally blown to the indoor, the indoor fan is a bidirectional fan, the air is blown to the indoor through the indoor heat exchanger in a forward direction, and the air is blown to the indoor heat exchanger from the indoor in a reverse direction, and the control method comprises the following steps:
s100, controlling the air conditioner to enter a refrigeration cycle;
s200, determining whether condensed water is formed on the surface of the indoor heat exchanger;
and S300, controlling the indoor fan to reversely blow at a speed of V1 when condensate water is formed on the surface of the indoor heat exchanger.
Through the arrangement mode, sundries in the air duct are blown to the indoor heat exchanger under the action of wind power and are adsorbed by the condensed water on the surface of the indoor heat exchanger by reversely rotating the indoor fan and combining the condensed water of the indoor heat exchanger, so that the air duct is cleaned, and the problem of manually cleaning the air duct is reduced or avoided.
Drawings
The air conditioner air duct self-cleaning control method of the present invention is described with reference to the accompanying drawings.
In the drawings:
FIG. 1 is a schematic structural diagram of an air conditioner duct according to the present invention;
FIG. 2 is a main flow chart of the air conditioner air duct self-cleaning control method of the present invention;
fig. 3 is a detailed flowchart of the air conditioner air duct self-cleaning control method of the present invention.
List of reference numerals:
1. an indoor heat exchanger; 2. an indoor fan; 3. an air duct.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the description has been given taking an indoor fan as a cross flow fan as an example, it is obvious that the indoor fan of the present invention may be other fans such as an axial flow fan, etc., as long as it can blow air into the room.
Referring to fig. 1 and 2, a self-cleaning control method of an air conditioner duct according to the present invention will be described. Fig. 1 is a schematic structural diagram of an air conditioner duct according to the present invention, and fig. 2 is a main flow chart of a self-cleaning control method for an air conditioner duct according to the present invention.
As shown in fig. 1 and 2, in order to solve the problem that the air duct of the air conditioner in the prior art can only be manually cleaned to ensure user experience, the air conditioner of the present invention includes an indoor heat exchanger 1, an indoor fan 2 and an air duct 3 which are sequentially arranged, air enters the indoor fan 2 after heat exchange through the indoor heat exchanger 1, and enters the air duct 3 along with operation of the indoor fan 2, and finally blows to the indoor, the indoor fan 2 is a bidirectional fan, the air blows to the indoor in a forward direction through the indoor heat exchanger 1, the air blows to the indoor heat exchanger 1 in a reverse direction from the indoor, and the air conditioner air duct self-cleaning control method includes:
s100, controlling the air conditioner to enter a refrigeration cycle;
firstly, the air conditioner is controlled to enter a refrigeration cycle to prepare for subsequent air duct self-cleaning, wherein the refrigeration cycle refers to that a refrigerant circulates along the flow direction of the air conditioner for indoor refrigeration, an indoor fan 2 is not necessarily required to rotate, and a refrigeration mode/a dehumidification mode belong to the category of refrigeration cycles.
S200, determining whether condensed water is formed on the surface of the indoor heat exchanger;
after the indoor heat exchanger enters a refrigeration cycle for a period of time, condensed water can be formed on the surface of the indoor heat exchanger, after the condensed water is formed on the surface of the indoor heat exchanger 1, the condensed water can be determined in various manners, for example, in the manners of sensor detection, camera acquisition and the like, preferably, the condensed water is detected through a distance sensor, because the distance between the indoor heat exchanger 1 and the distance sensor is unchanged, once the condensed water is formed, the distance between the indoor heat exchanger 1 and the distance sensor can be changed, so that whether the condensed water is formed is judged, of course, whether liquid adheres to the surface of the indoor heat exchanger 1 can be detected through an optical sensor, and the detection manners are various and are not listed one by one. The controller of the air conditioner determines whether the surface of the indoor heat exchanger 1 forms the condensed water through the detection result.
And S300, controlling the indoor fan to reversely blow at a speed of V1 when condensate water is formed on the surface of the indoor heat exchanger.
When condensate water is formed on the surface of the indoor heat exchanger 1, the indoor fan 2 is controlled to blow air reversely at the speed of V1, impurities such as dust in the air duct 3 can be driven to blow towards the indoor heat exchanger 1, and at the moment, the indoor heat exchanger 1 is wet, so that a certain adsorption effect can be achieved, the dust is prevented from scattering around and returning into the air duct 3. The dust in the air duct 3 is blown onto the indoor heat exchanger 1, so that the air duct self-cleaning work is completed, the dust raising condition can not be generated in the whole process, the user satisfaction is improved, and the purpose of reducing or even canceling manual cleaning is achieved.
A detailed description is given below to a specific embodiment of the present invention with reference to fig. 3, where fig. 3 is a detailed flowchart of an air conditioner air duct self-cleaning control method according to the present invention, and the air conditioner air duct self-cleaning control method includes:
s110, determining a measured value of deposition of impurities in the air duct;
s120, controlling the air conditioner to enter a refrigeration cycle when the sundry deposition measured value is larger than or equal to a preset value;
and S130, controlling the indoor fan to blow forward or backward at the speed of V2.
Similar to the determination method of whether condensed water is formed on the surface of the indoor heat exchanger 1, the measured value of the deposition of the impurities can be detected in various ways, for example, the height value of the deposition of the impurities can be detected by a distance sensor, or the deposition state of the impurities can be detected by an optical sensor, and the determination can be performed in an image acquisition manner, and the detection methods are various and are not listed. And the controller of the air conditioner determines the measured value of the deposition of the impurities in the air duct according to the detection result.
When the measured deposition value of the sundries is larger than or equal to the preset value, the sundries need to be cleaned at the moment, the air conditioner starts to be controlled to enter the refrigeration cycle, the indoor fan 2 can be controlled to blow forward or backward at the speed of V2 according to the requirement, for example, the refrigeration cycle is in a refrigeration mode, and when the air conditioner is used in summer, the indoor fan 2 is directly controlled to blow forward, the purpose of refrigeration can be achieved, cold air is not suitable to be blown into a room in spring and autumn, and the backward blowing or the non-blowing is better selected. For another example, when the refrigeration cycle is in the dehumidification mode, it is also possible that V2 is 0, only the indoor fan 2 needs to be operated slowly or the indoor fan 2 does not need to be operated.
S200, determining whether condensed water is formed on the surface of the indoor heat exchanger;
and S300, controlling the indoor fan to reversely blow at a speed of V1 when condensate water is formed on the surface of the indoor heat exchanger.
As described above, it should be noted that the speed V1 of the indoor fan 2 is higher than the speed V2 of the step S130, which is advantageous in that the speed V2 is usually used during the normal use of the air conditioner, but the speed V2 is not the optimal result for removing the dust in the air duct 3, because the speed V2 is the speed of the indoor fan 2 which is usually used for the air conditioner, and the dust cannot be blown onto the indoor heat exchanger 1 well, and the dust can be cleaned well by stronger wind force, so the blowing speed of the indoor fan 2 is adjusted to make V1 > V2.
S310, re-determining the measured value of the deposition of the impurities in the air duct;
s330, when the measured value of the deposition of the impurities is smaller than the preset value, controlling the air conditioner to exit from the air duct self-cleaning control method;
and S400, controlling the air conditioner to enter a self-cleaning mode of the indoor heat exchanger.
Blowing dust and other impurities to the indoor heat exchanger 1 through the step S300, adsorbing the impurities by condensate water on the surface of the indoor heat exchanger 1, then re-confirming whether the cleaning reaches the standard, re-determining a deposition measured value of the impurities in the air duct 3 through the step S310, entering a judgment process, and controlling the air conditioner to exit from the air duct self-cleaning control method when the deposition measured value of the impurities is smaller than a preset value, which indicates that the cleaning reaches the standard. Although the air duct self-cleaning is finished, the indoor heat exchanger 1 needs to be cleaned after the impurities are deposited on the indoor heat exchanger 1, at this time, the indoor heat exchanger 1 is controlled to enter the self-cleaning mode through step S400, specifically, the indoor heat exchanger self-cleaning mode refers to that the indoor heat exchanger 1 is controlled to form a large amount of condensed water, and the impurities attached to the condensed water are discharged through a drainage system, and the control mode of the indoor heat exchanger self-cleaning mode is well documented in the prior art and will not be elaborated again.
Of course, after the debris deposition measurement value in the air duct 3 is re-determined in step S310, if the debris deposition measurement value is still greater than or equal to the preset value, the process should proceed to step S320, and return to the step of "controlling the air conditioner to enter the refrigeration cycle" to re-clean the debris in the air duct until the debris meets the requirement.
Although one embodiment of the present invention is described in fig. 3, it is obvious that the present invention is not limited to the embodiment described in fig. 3, for example, in another alternative embodiment, the cleaning degree of the air duct may not be determined by the measured value of the deposition of the impurities in the air duct 3, and a person skilled in the art may also test the time Δ T required for cleaning the air duct 3 in the conventional case by a plurality of times of experimental data, and during the use process of the user, the steps of step S110 and step S310, etc. related to determining the measured value of the deposition of the impurities in the air duct 3 may be directly replaced by the time Δ T of operation, that is, after step S300 in fig. 2, the control method further includes "controlling the air conditioner to exit from the air duct self-cleaning control method after the time Δ T of operation".
In conclusion, the invention can clean the sundries in the air duct 3 by combining the reverse rotation of the indoor fan 2 with the condensed water of the indoor heat exchanger 1, thereby reducing or avoiding the problem of manually cleaning the air duct, and then realize the self-cleaning process of the air duct 3 and the indoor heat exchanger 1 without manual intervention by the self-cleaning of the indoor heat exchanger 1, thereby providing possibility for the full automation of the air conditioner and reducing the labor cost.
It should be noted that the above-mentioned embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned structure so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.
For example, in an alternative embodiment, although the step S400 of the specific embodiment describes that the air conditioner is controlled to enter the indoor heat exchanger self-cleaning mode, it is obvious to those skilled in the art that the indoor heat exchanger 1 may be in a manual cleaning mode, and compared with the prior art, the indoor heat exchanger 1 only needs to be manually cleaned, the air duct 3 does not need to be cleaned again, which is equivalent to reducing one cleaned component, and reducing the labor cost, and the indoor heat exchanger 1 has various cleaning modes, which do not depart from the principle of the present invention, and therefore, all of them will fall within the protection scope of the present invention.
In addition, the invention also provides an air conditioner, which comprises a controller, wherein the controller is configured to be capable of executing the air conditioner air duct self-cleaning control method in any one of the technical schemes.
Further, the indoor fan 2 of the air conditioner is a cross flow fan. Of course, the indoor fan 2 may be an axial flow fan or the like as long as it can blow air in forward and reverse directions.
Furthermore, the cross-flow fan is set to be a fan capable of realizing speed regulation in both directions. The forward direction of the cross-flow fan can be adjusted to adjust the wind speed and the wind volume in the conventional use process, and then the reverse direction of the cross-flow fan can also be adjusted, so that the wind volume can be selectively increased or reduced according to actual conditions, the adjustment can be performed according to different deposition degrees of sundries, the situation that when the deposition of the sundries is too much, the wind force is too strong to enable the indoor heat exchanger 1 to be completely adsorbed in a short time, the indoor dust is scattered after backflow, or the situation that when the deposition of the sundries is too much, the wind force is too small to thoroughly clean is avoided.
Those skilled in the art will appreciate that the air conditioner described above may also include other known structures such as processors, controllers, memories, etc., wherein the memories include, but are not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, or registers, etc., and the processors include, but are not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc. Such well-known structures are not shown in the drawings in order to not unnecessarily obscure embodiments of the present disclosure.
Although the foregoing embodiments describe the steps in the above sequential order, those skilled in the art will understand that, in order to achieve the effect of the present embodiment, the different steps need not be performed in such an order, and may be performed simultaneously (in parallel) or in an inverted order, for example, in the embodiment of fig. 3, it is obvious that step S400 may also be disposed between step S300 and step S310, so as to achieve continuous replacement of the condensed water on the surface of the indoor heat exchanger 1, ensure that the adsorption force of the condensed water is not reduced as the impurities are adsorbed, and achieve cleaning of the indoor heat exchanger 1 itself, and these simple changes are within the protection scope of the present invention.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A self-cleaning control method for an air conditioner air duct comprises an indoor heat exchanger, an indoor fan and an air duct which are sequentially arranged, wherein air enters the indoor fan after heat exchange through the indoor heat exchanger, enters the air duct along with operation of the indoor fan and is finally blown to the indoor, the self-cleaning control method is characterized in that the indoor fan is a bidirectional fan, the air is blown to the indoor through the indoor heat exchanger in a forward direction, and the air is blown to the indoor heat exchanger from the indoor direction in a reverse direction, and the control method comprises the following steps:
controlling the air conditioner to enter a refrigeration cycle;
determining whether condensed water is formed on a surface of the indoor heat exchanger;
when condensate water is formed on the surface of the indoor heat exchanger, controlling the indoor fan to reversely blow at a speed of V1;
wherein, after the step of controlling the indoor fan to blow air reversely at the speed of V1, the control method further comprises:
controlling the air conditioner to enter a self-cleaning mode of an indoor heat exchanger;
the self-cleaning mode of the indoor heat exchanger refers to controlling the indoor heat exchanger to form a large amount of condensed water, and discharging sundries attached to the condensed water through a drainage system.
2. The air conditioner air duct self-cleaning control method as claimed in claim 1, wherein after the step of controlling the air conditioner to enter a refrigeration cycle, the control method further comprises:
controlling the indoor fan to blow air in a forward direction or a reverse direction at a speed of V2;
wherein V2 is less than V1.
3. The air conditioner duct self-cleaning control method as claimed in claim 1, wherein after the step of controlling the indoor fan to blow air reversely at a speed of V1, the control method further comprises:
and after the operation time delta T, controlling the air conditioner to exit from the air duct self-cleaning control method.
4. The method as claimed in claim 1, wherein the step of controlling the air conditioner to enter the refrigeration cycle further comprises:
determining a measured value of deposition of impurities in the air duct;
and when the measured value of the deposition of the impurities is greater than or equal to the preset value, controlling the air conditioner to enter a refrigeration cycle.
5. The air conditioner duct self-cleaning control method as claimed in claim 4, wherein after the step of controlling the indoor fan to blow air reversely at a speed of V1, the control method further comprises:
re-determining the measured value of the deposition of the impurities in the air duct;
and when the measured value of the deposition of the impurities is smaller than the preset value, controlling the air conditioner to exit from the air duct self-cleaning control method.
6. The air conditioner air duct self-cleaning control method according to claim 5, wherein after the step of "re-determining the air duct deposit measurement value", the control method further comprises:
and returning to the step of controlling the air conditioner to enter the refrigeration cycle when the measured value of the deposition of the impurities is still larger than or equal to the preset value.
7. An air conditioner comprising a controller, wherein the controller is configured to perform the air conditioner duct self-cleaning control method of any one of claims 1-6.
8. The air conditioner according to claim 7, wherein the indoor fan is a cross flow fan.
9. The air conditioner as claimed in claim 8, wherein the cross flow fan is provided as a fan whose speed is adjustable in both directions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395804.5A CN111043702B (en) | 2019-12-30 | 2019-12-30 | Air conditioner air duct self-cleaning control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395804.5A CN111043702B (en) | 2019-12-30 | 2019-12-30 | Air conditioner air duct self-cleaning control method |
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| CN111043702A CN111043702A (en) | 2020-04-21 |
| CN111043702B true CN111043702B (en) | 2022-01-21 |
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| JPH11183077A (en) * | 1997-12-19 | 1999-07-06 | Fujitsu General Ltd | Interior machine for air conditioner |
| CN104930669A (en) * | 2015-07-07 | 2015-09-23 | 珠海格力电器股份有限公司 | Air conditioner operation method |
| CN108006888A (en) * | 2017-11-21 | 2018-05-08 | 奥克斯空调股份有限公司 | A kind of air-conditioning self cleaning method |
| CN108087969A (en) * | 2017-12-11 | 2018-05-29 | 广东美的制冷设备有限公司 | Air processor |
| CN109140707A (en) * | 2018-07-19 | 2019-01-04 | 珠海格力电器股份有限公司 | Air conditioner self-cleaning method and system and air conditioner |
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| JP4604575B2 (en) * | 2004-06-30 | 2011-01-05 | パナソニック株式会社 | Air cleaner |
| CN209744538U (en) * | 2019-03-05 | 2019-12-06 | 郑州海尔空调器有限公司 | Air conditioner |
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| JPH11183077A (en) * | 1997-12-19 | 1999-07-06 | Fujitsu General Ltd | Interior machine for air conditioner |
| CN104930669A (en) * | 2015-07-07 | 2015-09-23 | 珠海格力电器股份有限公司 | Air conditioner operation method |
| CN108006888A (en) * | 2017-11-21 | 2018-05-08 | 奥克斯空调股份有限公司 | A kind of air-conditioning self cleaning method |
| CN108087969A (en) * | 2017-12-11 | 2018-05-29 | 广东美的制冷设备有限公司 | Air processor |
| CN109140707A (en) * | 2018-07-19 | 2019-01-04 | 珠海格力电器股份有限公司 | Air conditioner self-cleaning method and system and air conditioner |
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