CN108317676B - Self-cleaning control method for air conditioner - Google Patents
Self-cleaning control method for air conditioner Download PDFInfo
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- CN108317676B CN108317676B CN201810059807.0A CN201810059807A CN108317676B CN 108317676 B CN108317676 B CN 108317676B CN 201810059807 A CN201810059807 A CN 201810059807A CN 108317676 B CN108317676 B CN 108317676B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation 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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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- 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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- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners and aims to solve the problem that the existing air conditioner cannot judge the time for starting a self-cleaning mode. To this end, the present invention provides a self-cleaning control method for an air conditioner including an indoor unit, the self-cleaning control method including: enabling the air conditioner to execute a first standard working condition in the current state; acquiring the outlet air speed of the indoor unit under a first standard working condition; comparing the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to the first standard wind speed with a first preset value; and judging whether to execute a self-cleaning mode or not according to the comparison result. The invention can enable the air conditioner to execute the self-cleaning mode under reasonable conditions, avoid the waste of energy caused by frequent self-cleaning of the air conditioner, and simultaneously avoid the influence on human health caused by poor air quality caused by the fact that the air conditioner does not self-clean for a long time.
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.
Background
The air conditioner is a device capable of refrigerating/heating the indoor, and as time goes on, the dust deposition on the indoor unit and the outdoor unit of the air conditioner increases gradually, and after the dust deposition accumulates to a certain degree, a large amount of bacteria can be bred, and especially when the indoor air flows through the indoor unit, a large amount of dust and bacteria can be carried, so that the air conditioner needs to be cleaned in time.
In the prior art, the cleaning mode of the air conditioner comprises manual cleaning and self-cleaning of the air conditioner, time and labor are wasted by adopting the manual cleaning, all parts of the air conditioner need to be disassembled and cleaned, and all the parts need to be reassembled after the cleaning is finished. Therefore, many current air conditioners adopt a self-cleaning mode, but under the influence of factors such as the actual installation position of the air conditioner, the actual operating state and the indoor environment, the air conditioner cannot automatically determine the time for starting the self-cleaning control, but the user needs to automatically determine whether to execute the self-cleaning mode of the air conditioner, which may result in: if the self-cleaning mode is frequently turned on, although the cleanliness of the air conditioner can be guaranteed, energy is wasted, if the self-cleaning mode is turned on for a long period of time, the cleanliness of the air conditioner is hardly guaranteed, and the normal use of the air conditioner may be affected while the health of a person is affected.
Therefore, there is a need in the art for a new self-cleaning control method for an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem that the existing air conditioner cannot determine the time for starting the self-cleaning mode, the present invention provides a self-cleaning control method for an air conditioner, the air conditioner includes an indoor unit, the self-cleaning control method includes: enabling the air conditioner to execute a standard working condition under the current state; acquiring outlet air speed of an indoor unit under a standard working condition; and judging whether to execute a self-cleaning mode or not according to the outlet air speed of the indoor unit.
In a preferred embodiment of the above self-cleaning control method, the step of "making the air conditioner perform the standard operation in the current state" includes: enabling the air conditioner to execute a first standard working condition in the current state; the step of obtaining the outlet wind speed of the indoor unit under the standard working condition comprises the following steps: acquiring the outlet air speed of the indoor unit under a first standard working condition; the step of judging whether to execute the self-cleaning mode according to the outlet wind speed of the indoor unit comprises the following steps: comparing the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to the first standard wind speed with a first preset value; and judging whether to execute a self-cleaning mode or not according to the comparison result.
In a preferred embodiment of the above self-cleaning control method, the step of determining whether to execute the self-cleaning mode according to the comparison result includes: if the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to the first standard wind speed is smaller than or equal to a first preset value, the self-cleaning mode is not executed; and if the change rate of the outlet air speed of the indoor unit relative to the first standard air speed under the first standard working condition is larger than a first preset value, enabling the air conditioner to execute a second standard working condition under the current state, and further judging whether to execute the self-cleaning mode according to the outlet air speed of the indoor unit under the second standard working condition.
In a preferred embodiment of the above self-cleaning control method, the step of determining whether to execute the self-cleaning mode according to the outlet wind speed of the indoor unit under the second standard condition includes: judging whether the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is greater than a second preset value or not; if the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is not larger than a second preset value, the self-cleaning mode is not executed; and if the change rate of the outlet air speed of the indoor unit relative to the second standard air speed under the second standard working condition is larger than a second preset value, enabling the air conditioner to execute a third standard working condition under the current state, and further judging whether to execute the self-cleaning mode according to the outlet air speed of the indoor unit under the third standard working condition.
In a preferred embodiment of the above self-cleaning control method, the step of determining whether to execute the self-cleaning mode according to an outlet wind speed of the indoor unit under a third standard working condition includes: judging whether the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is greater than a third preset value or not; if the change rate of the outlet wind speed of the indoor unit under the third standard working condition relative to the third standard wind speed is larger than a third preset value, immediately executing a self-cleaning mode; and if the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is not greater than a third preset value, the self-cleaning mode is not executed.
In a preferred technical solution of the above self-cleaning control method, the self-cleaning control method further includes: enabling the air conditioner to execute a first standard working condition in a clean state; under the first standard working condition, a first standard wind speed is measured.
In a preferred technical solution of the above self-cleaning control method, the self-cleaning control method further includes: enabling the air conditioner to execute a second standard working condition in a clean state; and under the second standard working condition, measuring a second standard wind speed.
In a preferred technical solution of the above self-cleaning control method, the self-cleaning control method further includes: enabling the air conditioner to execute a third standard working condition in a clean state; and under the third standard working condition, measuring a third standard wind speed.
In a preferred embodiment of the above self-cleaning control method, the step of "selectively executing the self-cleaning mode according to an outlet wind speed of the indoor unit" further includes: and if the execution times of the step of comparing the change rate of the outlet wind speed of the indoor unit relative to the first standard wind speed under the first standard working condition with the first preset value reach the preset times, immediately executing the self-cleaning mode.
In a preferred technical solution of the above self-cleaning control method, the self-cleaning control method further includes: if the operation time of the air conditioner reaches a preset time, the self-cleaning mode is immediately performed.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, when the air conditioner is running, the air conditioner is first forced to perform a first standard operating condition, and whether to enter the self-cleaning mode is determined according to a comparison result between a change rate of an outlet wind speed of the indoor unit under the first standard operating condition with respect to a first standard wind speed and a first preset value, specifically, if the change rate of the outlet wind speed of the indoor unit under the first standard operating condition with respect to the first standard wind speed is less than or equal to the first preset value, the self-cleaning mode is not performed, and if the change rate of the outlet wind speed of the indoor unit under the first standard operating condition with respect to the first standard wind speed is greater than the first preset value, whether to enter the self-cleaning mode is further determined according to a comparison result between a change rate of the outlet wind speed of the indoor unit under a second standard, if the change rate of the outlet wind speed of the indoor unit under the second standard working condition relative to the second standard wind speed is not larger than the second preset value, the self-cleaning mode is not executed, if the change rate of the outlet wind speed of the indoor unit under the second standard working condition relative to the second standard wind speed is larger than the second preset value, whether the indoor unit enters the self-cleaning mode or not is judged according to the comparison result of the change rate of the outlet wind speed of the indoor unit under the third standard working condition relative to the third standard wind speed and the third preset value, if the change rate of the outlet wind speed of the indoor unit under the third standard working condition relative to the third standard wind speed is larger than the third preset value, the self-cleaning mode is executed, and if the change rate of the outlet wind speed of the indoor unit under the third standard working condition relative to the. By the control mode, the air conditioner can judge the time for entering the self-cleaning mode according to the outlet air speed of the indoor unit under the first standard working condition, the second standard working condition and the third standard working condition, so that the self-cleaning of the air conditioner is realized, the self-cleaning mode can be executed by the air conditioner under a reasonable condition, the frequent self-cleaning of the air conditioner is avoided, the energy waste is avoided, and meanwhile, the air quality deterioration and the influence on the health of people caused by the fact that the air conditioner is not self-cleaned for a long time are avoided.
Further, on the basis of the above control method, the present invention provides another control method, that is, when the number of times of execution of the step of "comparing the rate of change of the outlet wind speed of the indoor unit with respect to the first standard wind speed under the first standard condition with the first preset value" reaches the preset number of times, the air conditioner automatically executes the self-cleaning mode.
Furthermore, on the basis of the two control modes, the invention further provides a control mode for judging whether to execute the self-cleaning mode or not by judging whether the running time of the air conditioner reaches the preset time or not, and by the control mode, when the wind speed sensor for detecting the outlet wind speed of the indoor unit is failed/damaged, the opportunity of entering the self-cleaning mode can still be judged by the running time of the air conditioner, so that the situation that the self-cleaning mode is not executed all the time because the air conditioner cannot execute the self-cleaning mode by the first control mode and the second control mode is avoided.
Drawings
FIG. 1 is a flow chart of a self-cleaning control method of the present invention;
fig. 2 is a flow chart of an embodiment of the self-cleaning control method of the present invention.
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.
It should be noted that the terms "first", "second" and "third" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The problem that the existing air conditioner cannot judge the time for starting the self-cleaning mode is pointed out based on the background technology. The invention provides a self-cleaning control method for an air conditioner, aiming at enabling the air conditioner to automatically judge whether to execute a self-cleaning mode.
Specifically, the air conditioner of the present invention includes an indoor unit, and as shown in fig. 1, the self-cleaning control method of the present invention includes: enabling the air conditioner to execute a standard working condition under the current state; acquiring outlet air speed of an indoor unit under a standard working condition; and judging whether to execute a self-cleaning mode or not according to the outlet air speed of the indoor unit. The outlet air speed of the indoor unit can be acquired through the air speed sensor. Note that the "current state" described above refers to a state in which the user is not aware of the contamination of the air conditioner. In addition, the self-cleaning of the air conditioner is mainly carried out on an indoor unit and an outdoor unit of the air conditioner.
Preferably, as shown in fig. 2, the step of "making the air conditioner perform the standard condition in the current state" includes: enabling the air conditioner to execute a first standard working condition in the current state; the step of obtaining the outlet wind speed of the indoor unit under the standard working condition comprises the following steps: acquiring the outlet air speed of the indoor unit under a first standard working condition; the step of judging whether to execute the self-cleaning mode according to the outlet wind speed of the indoor unit comprises the following steps: comparing the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to the first standard wind speed with a first preset value; and judging whether to execute a self-cleaning mode or not according to the comparison result.
Specifically, the step of determining whether to execute the self-cleaning mode according to the comparison result includes: if the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to the first standard wind speed is smaller than or equal to a first preset value, the self-cleaning mode is not executed; and if the change rate of the outlet air speed of the indoor unit relative to the first standard air speed under the first standard working condition is larger than a first preset value, enabling the air conditioner to execute a second standard working condition under the current state, and further judging whether to execute the self-cleaning mode according to the outlet air speed of the indoor unit under the second standard working condition. The first preset value may be 20% or another value, and a person skilled in the art may flexibly set a specific value of the first preset value in practical application, as long as a boundary point determined by the first preset value can determine whether a change rate of the outlet wind speed of the indoor unit under the first standard working condition is too large relative to the first standard wind speed, and preliminarily give a decision result of whether to execute the self-cleaning mode. Further, the first preset value may be obtained according to experiments or experience of those skilled in the art.
Further, the step of determining whether to execute the self-cleaning mode according to the outlet air speed of the indoor unit under the second standard working condition includes: judging whether the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is greater than a second preset value or not; if the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is not larger than a second preset value, the self-cleaning mode is not executed; and if the change rate of the outlet air speed of the indoor unit relative to the second standard air speed under the second standard working condition is larger than a second preset value, enabling the air conditioner to execute a third standard working condition under the current state, and further judging whether to execute the self-cleaning mode according to the outlet air speed of the indoor unit under the third standard working condition. Similarly to the first preset value, the second preset value may be 20%, or other values, and a person skilled in the art may flexibly set a specific value of the second preset value in practical applications, as long as the boundary point determined by the second preset value can determine whether the change rate of the outlet wind speed of the indoor unit under the second standard operating condition is too large relative to the second standard wind speed, and further give a decision conclusion whether to execute the self-cleaning mode. Further, the second preset value may be obtained according to experiments or experience of those skilled in the art.
Further, the step of determining whether to execute the self-cleaning mode according to the outlet wind speed of the indoor unit under the third standard working condition includes: judging whether the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is greater than a third preset value or not; if the change rate of the outlet wind speed of the indoor unit under the third standard working condition relative to the third standard wind speed is larger than a third preset value, immediately executing a self-cleaning mode; and if the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is not greater than a third preset value, the self-cleaning mode is not executed. Similarly to the first preset value and the second preset value, the third preset value may be 20%, or other values, and a person skilled in the art may flexibly set a specific value of the third preset value in practical applications, as long as the dividing point determined by the third preset value can determine whether the change rate of the outlet wind speed of the indoor unit under the third standard working condition is too large relative to the third standard wind speed, and finally, a determination conclusion whether the self-cleaning mode is executed is given. In addition, the third preset value may be obtained according to experiments or experience of those skilled in the art.
In summary, when the change rates of the outlet wind speed of the indoor unit under the three different standard conditions relative to the standard wind speed are all too large, the air conditioner automatically executes the self-cleaning mode, otherwise, the air conditioner does not execute the self-cleaning mode.
In an embodiment of the present invention, the first standard wind speed may be measured before the air conditioner is shipped, that is, the air conditioner is in a completely clean state, and the first standard wind speed may be measured by operating the air conditioner at a fixed first rotation speed and measuring the corresponding first standard wind speed. Similarly to the first standard wind speed, the air conditioner is operated at a fixed second rotational speed, and the corresponding second standard wind speed at this time is determined, and the air conditioner is operated at a fixed third rotational speed, and the corresponding third standard wind speed at this time is determined. Through the mode, the measured first standard wind speed, the second standard wind speed and the third standard wind speed can be written into the computer board and/or the background data, so that the air conditioner can be conveniently compared with the first standard wind speed, the second standard wind speed and the third standard wind speed when the air conditioner runs after leaving a factory.
In addition, the first standard wind speed, the second standard wind speed, and the third standard wind speed may be determined through the above experiment, and may be obtained through experience of those skilled in the art, and those skilled in the art may flexibly obtain the first standard wind speed, the second standard wind speed, and the third standard wind speed in various ways in practical applications. It should be noted that the "clean state" here is different from the "current state" described above, the "clean state" refers to a state in which it can be determined that there is no dirty in the air conditioner, that is, the air conditioner is known to have no dirty, and the "current state" refers to a state in which the dirty condition of the air conditioner is unknown, so that it can be determined whether the air conditioner needs to execute the self-cleaning mode by comparing the "current state" with the "clean state". Specifically, the implementation mode of the invention is as follows: and forcing the air conditioner to execute a standard working condition in the current state of unknown filth blockage condition, and comparing the standard working condition with the standard working condition of air conditioner operation in the known clean state without filth blockage, thereby judging whether the air conditioner is filth blockage or not in the current state.
In addition, the "clean state" may be a state where the air conditioner is in a state without contamination before the air conditioner leaves a factory, or may be a state where the air conditioner is determined to be free of contamination just after the air conditioner completes self-cleaning/manual cleaning.
Preferably, the step of selectively performing the self-cleaning mode according to an outlet wind speed of the indoor unit further includes: and if the execution times of the step of comparing the change rate of the outlet wind speed of the indoor unit relative to the first standard wind speed under the first standard working condition with the first preset value reach the preset times, immediately executing the self-cleaning mode. The preset times can be set by a person skilled in the art through an experimental manner, or can be set through an empirical manner, as long as the air conditioner can execute the self-cleaning mode through the demarcation point determined by the preset times. For example, the preset number of times may be 5, that is, when the number of times of performing the step of comparing the change rate of the outlet wind speed of the indoor unit with respect to the first standard wind speed under the first standard operating condition with the first preset value reaches 5, the air conditioner immediately and automatically performs the self-cleaning mode.
Preferably, the self-cleaning control method of the present invention further comprises: if the operation time of the air conditioner reaches a preset time, the self-cleaning mode is immediately performed. The skilled person can set the preset time through an experimental manner, or can set the preset time through an empirical manner, as long as the air conditioner can execute the self-cleaning mode through the demarcation point determined by the preset time. For example, the preset time may be 10h (hours), that is, when the operation time of the air conditioner reaches 10h, the air conditioner automatically performs the self-cleaning mode immediately.
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 (5)
1. A self-cleaning control method for an air conditioner including an indoor unit, the self-cleaning control method comprising:
enabling the air conditioner to execute a first standard working condition in the current state;
acquiring the outlet air speed of the indoor unit under the first standard working condition;
comparing the change rate of the outlet wind speed of the indoor unit under the first standard working condition relative to a first standard wind speed with a first preset value;
if the change rate of the outlet wind speed of the indoor unit relative to the first standard wind speed under the first standard working condition is smaller than or equal to the first preset value, the self-cleaning mode is not executed;
if the change rate of the outlet wind speed of the indoor unit relative to the first standard wind speed under the first standard working condition is larger than the first preset value, enabling the air conditioner to execute a second standard working condition under the current state, and further judging whether the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is larger than a second preset value or not;
if the change rate of the outlet wind speed of the indoor unit relative to a second standard wind speed under the second standard working condition is not larger than a second preset value, the self-cleaning mode is not executed;
if the change rate of the outlet wind speed of the indoor unit relative to the second standard wind speed under the second standard working condition is larger than the second preset value, enabling the air conditioner to execute a third standard working condition under the current state, and further judging whether the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is larger than a third preset value or not;
if the change rate of the outlet wind speed of the indoor unit relative to a third standard wind speed under the third standard working condition is greater than a third preset value, immediately executing a self-cleaning mode;
and if the change rate of the outlet wind speed of the indoor unit relative to the third standard wind speed under the third standard working condition is not greater than the third preset value, the self-cleaning mode is not executed.
2. The self-cleaning control method according to claim 1, further comprising:
enabling the air conditioner to execute a first standard working condition in a clean state;
and under the first standard working condition, determining the first standard wind speed.
3. The self-cleaning control method according to claim 1, further comprising:
enabling the air conditioner to execute a second standard working condition in a clean state;
and under the second standard working condition, determining the second standard wind speed.
4. The self-cleaning control method according to claim 1, further comprising:
enabling the air conditioner to execute a third standard working condition in a clean state;
and under the third standard working condition, determining the third standard wind speed.
5. The self-cleaning control method of claim 1,
and if the execution times of the step of comparing the change rate of the outlet wind speed of the indoor unit relative to the first standard wind speed under the first standard working condition with a first preset value reach preset times, immediately executing a self-cleaning mode.
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| CN110469940B (en) * | 2019-07-17 | 2021-09-21 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110469941B (en) * | 2019-07-17 | 2021-09-21 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN114909789B (en) * | 2021-02-07 | 2023-08-18 | 青岛海尔空调器有限总公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
| CN114992784A (en) * | 2022-07-15 | 2022-09-02 | 珠海格力电器股份有限公司 | Air conditioner self-cleaning control method, air conditioner and computer readable storage medium |
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| JP5074225B2 (en) * | 2007-12-21 | 2012-11-14 | パナソニック株式会社 | Air conditioner |
| CN106440186B (en) * | 2016-08-31 | 2019-01-22 | 广东美的制冷设备有限公司 | The dirty stifled detection method of heat exchanger, system and air-conditioning based on single pressure sensor |
| CN106352634B (en) * | 2016-08-31 | 2018-12-28 | 广东美的制冷设备有限公司 | The dirty stifled detection method of air-conditioning heat exchanger, system and air-conditioning based on power of fan |
| CN106969467A (en) * | 2017-04-01 | 2017-07-21 | 青岛海尔空调器有限总公司 | A kind of air-conditioning automatically cleaning control method and device |
| CN107514783A (en) * | 2017-08-31 | 2017-12-26 | 广东美的制冷设备有限公司 | Air conditioner and the dirty stifled detection method of air conditioner |
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