CN113623813A - Self-cleaning control method for air conditioning unit - Google Patents
Self-cleaning control method for air conditioning unit Download PDFInfo
- Publication number
- CN113623813A CN113623813A CN202010374051.6A CN202010374051A CN113623813A CN 113623813 A CN113623813 A CN 113623813A CN 202010374051 A CN202010374051 A CN 202010374051A CN 113623813 A CN113623813 A CN 113623813A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- temperature
- self
- coil
- preset temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000004378 air conditioning Methods 0.000 title claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 abstract description 15
- 230000002441 reversible effect Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 description 12
- 238000009833 condensation Methods 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 5
- 101150098265 TDP2 gene Proteins 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 101100483248 Drosophila melanogaster gkt gene Proteins 0.000 description 3
- 101150041808 TDP1 gene Proteins 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 101150061263 tct-1 gene Proteins 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Images
Classifications
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
-
- 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
-
- 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
Landscapes
- 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)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioner self-cleaning, and particularly provides a self-cleaning control method for an air conditioning unit. The invention aims to solve the problem that the self-cleaning method of the existing air conditioning unit is provided for a single heat exchanger. To this end, the self-cleaning control method of the present invention comprises: enabling the temperature of a coil of the first heat exchanger to be less than or equal to a first preset temperature and greater than a second preset temperature; enabling the temperature of a coil of the first heat exchanger to be less than or equal to a second preset temperature; reversely circulating the refrigerant in the main circulation loop; enabling the temperature of the coil of the second heat exchanger to be less than or equal to a third preset temperature and greater than a fourth preset temperature; enabling the temperature of the coil of the second heat exchanger to be less than or equal to a fourth preset temperature; the refrigerant in the main circulation circuit is again circulated in reverse. The invention can realize self-cleaning of the first heat exchanger and the second heat exchanger simultaneously by executing a set of control logic, thereby ensuring the self-cleaning effect and effectively saving the time and energy consumption consumed in the self-cleaning process.
Description
Technical Field
The invention belongs to the technical field of air conditioner self-cleaning, and particularly provides a self-cleaning control method for an air conditioning unit.
Background
With the increasing popularization of air conditioning units, users gradually put higher and higher requirements on the comprehensive performance of the air conditioning units. Specifically, the existing user not only requires the air conditioning unit to have a heat exchange effect, but also requires the air conditioning unit to be capable of realizing self-cleaning, so as to better ensure good use experience of the user. In recent years, many implementations have been proposed for the self-cleaning function by those skilled in the art, wherein the most common method is to change the temperature of the coil to make the surface of the coil dew and frost again, and finally, self-cleaning is realized by defrosting. Although the self-cleaning effect can be well realized by the mode; however, the existing self-cleaning methods are proposed for a single heat exchanger, that is, self-cleaning of an indoor unit and self-cleaning of an outdoor unit are two completely independent processes, and when a user needs to simultaneously self-clean an indoor heat exchanger and an outdoor heat exchanger, an air conditioning unit needs to operate two completely independent self-cleaning modes to realize comprehensive self-cleaning. This kind of mode not only needs to consume more time, but also needs to consume more electric energy just can realize the automatically cleaning effect to lead to the not good problem of user experience.
Accordingly, there is a need in the art for a new self-cleaning control method for an air conditioning unit that solves the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems that the self-cleaning methods of the existing air conditioning units are all provided for a single heat exchanger, the present invention provides a self-cleaning control method for an air conditioning unit, the air conditioning unit includes a main circulation loop, and a first heat exchanger and a second heat exchanger which are arranged on the main circulation loop, the self-cleaning control method includes: enabling the temperature of a coil of the first heat exchanger to be less than or equal to a first preset temperature and greater than a second preset temperature; enabling the coil temperature of the first heat exchanger to be less than or equal to the second preset temperature; reversely circulating the refrigerant in the main circulation loop; enabling the temperature of the coil of the second heat exchanger to be less than or equal to a third preset temperature and greater than a fourth preset temperature; the temperature of the coil of the second heat exchanger is less than or equal to the fourth preset temperature; and reversely circulating the refrigerant in the main circulation loop again.
In a preferred technical solution of the above self-cleaning control method, the step of making the coil temperature of the first heat exchanger less than or equal to a first preset temperature and greater than a second preset temperature specifically includes: enabling the time that the temperature of the coil of the first heat exchanger is less than or equal to the first preset temperature and greater than the second preset temperature to reach a first preset time length; and/or the step of "making the coil temperature of the first heat exchanger less than or equal to the second preset temperature" specifically includes: and enabling the time that the temperature of the coil of the first heat exchanger is less than or equal to the second preset temperature to continuously reach a second preset time.
In a preferred technical solution of the above self-cleaning control method, the first preset temperature and/or the first preset duration are/is determined according to a dew point temperature of a space where the first heat exchanger is located.
In a preferred technical solution of the above self-cleaning control method, the step of making the coil temperature of the second heat exchanger less than or equal to a third preset temperature and greater than a fourth preset temperature specifically includes: enabling the time that the temperature of the coil of the second heat exchanger is less than or equal to the third preset temperature and greater than the fourth preset temperature to reach a third preset time duration; and/or the step of "making the coil temperature of the second heat exchanger less than or equal to the fourth preset temperature" specifically includes: and enabling the time that the temperature of the coil of the second heat exchanger is less than or equal to the fourth preset temperature to continuously reach a fourth preset time.
In a preferred technical solution of the above self-cleaning control method, the third preset temperature and/or the third preset duration are/is determined according to a dew point temperature of a space where the second heat exchanger is located.
In a preferred technical solution of the above self-cleaning control method, a specific manner of changing the temperature of the coil of the first heat exchanger and/or the second heat exchanger is as follows: and the operating frequency of an inverter compressor arranged on the main circulation loop is adjusted, and/or the rotating speed of a first heat exchange fan arranged near the first heat exchanger is adjusted, and/or the rotating speed of a second heat exchange fan arranged near the second heat exchanger is adjusted, so that the temperature of the coil of the first heat exchanger and/or the second heat exchanger is changed.
In a preferred technical solution of the above self-cleaning control method, the self-cleaning control method further includes: the first heat exchange fan is maintained in a stopped state after the step of "reversely circulating the refrigerant in the main circulation circuit" is performed and before the step of "reversely circulating the refrigerant in the main circulation circuit again" is performed.
In a preferred embodiment of the above self-cleaning control method, before the step of "circulating a refrigerant in the main circulation circuit in reverse direction", the self-cleaning control method further includes: and adjusting the frequency of the variable frequency compressor to a preset frequency.
In a preferred embodiment of the above self-cleaning control method, before the step of "making the coil temperature of the first heat exchanger less than or equal to a first preset temperature and greater than a second preset temperature", the self-cleaning method further includes: acquiring indoor heat exchange requirements; and according to the indoor heat exchange requirement, determining that the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger or that the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger.
In the preferred technical solution of the above self-cleaning control method, "determining that the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger or that the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger according to the indoor heat exchange requirement" specifically includes: if the indoor space needs to be refrigerated, the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger; if the indoor needs to be heated, the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger.
As can be understood by those skilled in the art, in the technical solution of the present invention, an air conditioning unit of the present invention includes a main circulation loop, and a first heat exchanger and a second heat exchanger disposed on the main circulation loop, and a self-cleaning control method of the present invention includes: enabling the temperature of the coil of the first heat exchanger to be less than or equal to a first preset temperature and greater than a second preset temperature so as to enable condensation to appear on the surface of the coil of the first heat exchanger; enabling the temperature of the coil of the first heat exchanger to be less than or equal to the second preset temperature so as to enable the surface of the coil of the first heat exchanger to be frosted; reversely circulating a refrigerant in the main circulation loop to gradually melt frost on the surface of the coil pipe of the first heat exchanger so as to realize self-cleaning of the first heat exchanger; enabling the temperature of the coil of the second heat exchanger to be less than or equal to a third preset temperature and greater than a fourth preset temperature so as to enable condensation to appear on the surface of the coil of the second heat exchanger; enabling the temperature of the coil of the second heat exchanger to be less than or equal to the fourth preset temperature so as to enable the surface of the coil of the second heat exchanger to be frosted; and reversely circulating the refrigerant in the main circulation loop again to gradually melt frost on the surface of the coil pipe of the second heat exchanger to realize self-cleaning of the second heat exchanger, so that the self-cleaning system can realize self-cleaning of the first heat exchanger and the second heat exchanger simultaneously by executing a set of control logic, thereby ensuring the self-cleaning effect and effectively saving time and energy consumption consumed in the self-cleaning process.
Drawings
FIG. 1 is a flow chart of the main steps of the self-cleaning control method of the present invention;
FIG. 2 is a flow chart of the specific steps of the self-cleaning control method of the present invention under refrigeration requirement;
fig. 3 is a flow chart of the specific steps of the self-cleaning control method under heating requirement of the 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. For example, although the steps of the method of the present invention are described herein in a particular order, these orders are not limiting, and one skilled in the art may perform the steps in a different order without departing from the underlying principles of the invention. It should be noted that, unless otherwise specifically stated or limited, the term "coupled" in the description of the present invention is to be construed broadly, e.g., as meaning directly coupled to one another, indirectly coupled through an intermediate, or communicating between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Specifically, the air conditioning unit comprises a main circulation loop, and a variable frequency compressor, a four-way valve, a first heat exchanger, an electronic expansion valve and a second heat exchanger which are arranged on the main circulation loop, wherein a first heat exchange fan is arranged near the first heat exchanger, a second heat exchange fan is arranged near the second heat exchanger, the air conditioning unit can change the running state of the air conditioning unit by controlling the frequency of the variable frequency compressor, one of the first heat exchanger and the second heat exchanger is used for heat exchange for a user, the other of the first heat exchanger and the second heat exchanger is used for assisting in realizing a heat exchange function, and the air conditioning unit can control the flow direction of a refrigerant in the main circulation loop by controlling the communication mode of the four-way valve. It should be noted that, the present invention does not limit the specific structure of the air conditioning unit, and a technician may set the configuration according to the actual use requirement, for example, the first heat exchange fan may not be arranged near the first heat exchanger; such changes in the specific structure of the air conditioning assembly do not depart from the basic principle of the present invention and fall within the protection scope of the present invention.
In addition, the air conditioning unit further comprises a controller, wherein the controller can acquire detection data of each sensor, for example, an indoor temperature is acquired through an indoor temperature sensor, and the controller can also control the operation of the air conditioning unit, for example, the communication mode of the four-way valve, the operation frequency of the variable frequency compressor and the like. It can be understood by those skilled in the art that the present invention does not limit the specific structure and model of the controller, and the controller may be the original controller of the air conditioning unit, or may be a controller separately configured to perform the self-cleaning control method of the present invention, and the skilled person may set the specific structure and model of the controller according to the actual use requirement.
Referring first to fig. 1, a flow chart of main steps of the self-cleaning control method of the present invention is shown. As shown in fig. 1, based on the air conditioning unit described in the above embodiment, the self-cleaning control method of the present invention mainly includes the following steps:
s1: enabling the temperature of a coil of the first heat exchanger to be less than or equal to a first preset temperature and greater than a second preset temperature;
s2: enabling the temperature of a coil of the first heat exchanger to be less than or equal to a second preset temperature;
s3: reversely circulating the refrigerant in the main circulation loop;
s4: enabling the temperature of the coil of the second heat exchanger to be less than or equal to a third preset temperature and greater than a fourth preset temperature;
s5: enabling the temperature of the coil of the second heat exchanger to be less than or equal to a fourth preset temperature;
s6: the refrigerant in the main circulation circuit is again circulated in reverse.
In step S1, the controller is configured to enable the coil temperature of the first heat exchanger to be less than or equal to the first preset temperature and greater than the second preset temperature, so as to enable condensation to occur on the coil surface of the first heat exchanger; it should be noted that, the present invention does not limit the specific operation mode of the controller, as long as the temperature of the coil of the first heat exchanger can be adjusted to be within a range that is less than or equal to the first preset temperature and greater than the second preset temperature. For example, the controller may adjust the coil temperature of the first heat exchanger by controlling an operating frequency of the inverter compressor, a rotational speed of the first heat exchange fan, a rotational speed of the second heat exchange fan, and the like. In addition, it should be noted that a technician may set specific values of the first preset temperature and the second preset temperature according to actual use requirements, as long as the coil temperature of the first heat exchanger is less than or equal to the first preset temperature and greater than the second preset temperature, condensation may occur on the surface of the coil, and frost may occur on the surface of the coil when the coil temperature of the first heat exchanger is less than or equal to the second preset temperature.
In step S2, the controller is capable of making the coil temperature of the first heat exchanger less than or equal to the second preset temperature, so that the condensation on the coil surface of the first heat exchanger can be converted into frost to adhere to the whole coil surface, so as to realize self-cleaning later; it should be noted that the present invention does not limit the specific operation mode of the controller, as long as the temperature of the coil of the first heat exchanger can be adjusted to be within the range of less than or equal to the second preset temperature.
In step S3, the controller may reversely circulate the refrigerant in the main circulation loop to gradually melt frost on the coil surface of the first heat exchanger, so as to achieve self-cleaning of the first heat exchanger; the controller is generally configured to control the four-way valve to switch to realize the refrigerant reverse circulation, but this is not a limitation, and a skilled person may realize the refrigerant reverse circulation in other manners.
In step S4, the controller is capable of making the coil temperature of the second heat exchanger less than or equal to the third preset temperature and greater than the fourth preset temperature, so that the air conditioning unit can perform self-cleaning on the first heat exchanger and simultaneously cause condensation to occur on the coil surface of the second heat exchanger, thereby effectively saving time and energy consumption; it should be noted that, the present invention does not limit the specific operation mode of the controller, as long as the temperature of the coil of the second heat exchanger can be adjusted to be within a range that is less than or equal to the third preset temperature and greater than the fourth preset temperature. For example, the controller may adjust the coil temperature of the second heat exchanger by controlling an operating frequency of the inverter compressor, a rotational speed of the first heat exchange fan, a rotational speed of the second heat exchange fan, and the like. In addition, it should be noted that a technician may set specific values of the third preset temperature and the fourth preset temperature according to actual use requirements, as long as the coil temperature of the second heat exchanger is less than or equal to the third preset temperature and greater than the fourth preset temperature, condensation may occur on the surface of the coil, and frost may occur on the surface of the coil when the coil temperature of the second heat exchanger is less than or equal to the fourth preset temperature.
In step S5, the controller is capable of making the coil temperature of the second heat exchanger less than or equal to the fourth preset temperature, so that the condensation on the coil surface of the second heat exchanger can be converted into frost to adhere to the whole coil surface, so as to realize self-cleaning later; it should be noted that the present invention does not limit the specific operation mode of the controller, as long as the temperature of the coil of the second heat exchanger can be adjusted to be less than or equal to the fourth preset temperature.
In step S6, the controller may reversely circulate the refrigerant in the main circulation loop again to gradually melt frost on the surface of the coil of the second heat exchanger to achieve self-cleaning of the second heat exchanger, so that the first heat exchanger and the second heat exchanger can both achieve self-cleaning effect by executing a set of control logic, thereby effectively improving self-cleaning efficiency.
Referring next to fig. 2, a flowchart of the self-cleaning control method of the present invention is shown. It should be noted that, based on the air conditioning unit described in the foregoing embodiment, in the self-cleaning control method, the first heat exchanger is set as an indoor heat exchanger, and the second heat exchanger is set as an outdoor heat exchanger, so that the self-cleaning effect is achieved, and meanwhile, the heat exchange requirements of the user can be better considered, and further, the user experience is improved to the greatest extent. The skilled person in the art can understand that the present invention does not limit the way of determining the heat exchange requirement by the controller, and the skilled person can set the heat exchange requirement by himself according to the actual use requirement, for example, the controller can determine the heat exchange requirement by the indoor temperature, or by the heat exchange mode executed last time; the self-cleaning control method described in the preferred embodiment may be a single operation mode, or may be a section of operation depending on the cooling mode, and these changes do not depart from the basic principle of the present invention, and should fall into the protection scope of the present invention. As shown in fig. 2, the self-cleaning control method of the present invention specifically includes the following steps under refrigeration requirement:
s101: enabling the time that the temperature of a coil pipe of the indoor heat exchanger is less than or equal to a first preset temperature and greater than a second preset temperature to reach a first preset duration continuously;
s102: enabling the time that the temperature of the coil pipe of the indoor heat exchanger is less than or equal to a second preset temperature to continuously reach a second preset time;
s103: adjusting the frequency of the variable frequency compressor to a preset frequency, and reversing the four-way valve;
s104: stopping the indoor heat exchange fan;
s105: enabling the time that the temperature of the coil pipe of the outdoor heat exchanger is less than or equal to a third preset temperature and greater than a fourth preset temperature to reach a third preset time duration;
s106: enabling the time that the temperature of the coil pipe of the outdoor heat exchanger is less than or equal to the fourth preset temperature to continuously reach the fourth preset time length;
s107: and adjusting the frequency of the variable frequency compressor to a preset frequency, and reversing the four-way valve again.
In step S101, the controller enables a time that a coil temperature of the indoor heat exchanger is less than or equal to the first preset temperature and greater than the second preset temperature to reach the first preset duration, so that enough condensation appears on a coil surface of the indoor heat exchanger. Although the degree of condensation is controlled by the length of time in the present embodiment; however, it is obvious that the invention may also control the degree of condensation in other ways, for example by means of image acquisition.
It should be noted that, the present invention does not limit the specific operation manner of the controller, as long as the coil temperature of the indoor heat exchanger can be adjusted to be within a range that is less than or equal to the first preset temperature and greater than the second preset temperature. For example, the controller may adjust the coil temperature of the indoor heat exchanger by controlling the operating frequency of the inverter compressor, the rotational speed of the indoor heat exchange fan, the rotational speed of the outdoor heat exchange fan, and the like.
As a preferred adjustment mode, in the process of adjusting the coil temperature of the indoor heat exchanger to be less than or equal to the first preset temperature and greater than the second preset temperature, the controller can control the operating frequency of the inverter compressor, the rotating speed of the indoor heat exchange fan and the rotating speed of the outdoor heat exchange fan according to the indoor temperature, the target indoor temperature, the coil temperature of the indoor heat exchanger and the first preset temperature, so that the self-cleaning is realized, and the heat exchange requirements of users can be better met. It should be noted that the target indoor temperature may be a target temperature set by a user, a set temperature used by the user, or an appropriate indoor temperature stored in the controller.
Specifically, in order to meet the heat exchange requirements of users, the adjusting method divides the indoor temperature into three intervals, wherein the first temperature interval is that the indoor temperature is greater than or equal to the target indoor temperature upper limit, the second temperature interval is that the indoor temperature is less than the target indoor temperature upper limit and greater than the target indoor temperature, and the third temperature interval is that the indoor temperature is less than or equal to the target indoor temperature; the target indoor temperature upper limit is greater than the target indoor temperature, and a technician can set a specific value of the target indoor temperature upper limit according to actual use requirements, as long as a user feels hot when the indoor temperature is greater than or equal to the target indoor temperature upper limit.
Based on the three temperature intervals, the preferred adjustment method specifically includes the following three cases:
in a first case, in a case where the indoor temperature is greater than or equal to the target indoor temperature upper limit: if the temperature of the coil pipe of the indoor heat exchanger is higher than the first preset temperature, increasing the frequency of the inverter compressor, preferably to the maximum frequency within the rated frequency range, increasing the rotation speed of the outdoor heat exchange fan, preferably to the maximum rotation speed within the rated rotation speed range, decreasing the rotation speed of the indoor heat exchange fan, preferably to the minimum rotation speed within the rated rotation speed range, and automatically controlling the opening degree of the electronic expansion valve by combining the target exhaust temperature and the target superheat degree of the inverter compressor in the adjusting process; if the temperature of the coil pipe of the indoor heat exchanger is equal to the first preset temperature, increasing the frequency of the variable frequency compressor, preferably to the maximum frequency within the rated frequency range, increasing the rotating speed of the outdoor heat exchange fan, preferably to the maximum rotating speed within the rated rotating speed range, keeping the rotating speed of the indoor heat exchange fan unchanged, and automatically controlling the opening degree of the electronic expansion valve by combining the target exhaust temperature and the target superheat degree of the variable frequency compressor in the adjusting process; and if the coil temperature of the indoor heat exchanger is lower than the first preset temperature, increasing the frequency of the inverter compressor, preferably to the maximum frequency within the rated frequency range, increasing the rotation speed of the outdoor heat exchange fan, preferably to the maximum rotation speed within the rated rotation speed range, and increasing the rotation speed of the indoor heat exchange fan, preferably to the maximum rotation speed within the rated rotation speed range, and automatically controlling the opening degree of the electronic expansion valve by combining the target exhaust temperature and the target superheat degree of the inverter compressor in the adjusting process.
In the second case, under the condition that the indoor temperature is lower than the target indoor temperature upper limit and higher than the target indoor temperature, the controller controls the operation frequency of the inverter compressor, the rotating speed of the first heat exchange fan and the rotating speed of the second heat exchange fan according to a general control logic, and the opening degree of the electronic expansion valve is automatically controlled in combination with the target exhaust temperature and the target superheat degree of the inverter compressor within the first preset time period.
In a third case, in a case that an indoor temperature is less than or equal to the target indoor temperature, if a coil temperature of the indoor heat exchanger is greater than the first preset temperature, keeping a frequency of the inverter compressor and a rotation speed of the outdoor heat exchange fan unchanged, and reducing the rotation speed of the indoor heat exchange fan, preferably to a minimum rotation speed within a rated rotation speed range, and automatically controlling an opening degree of the electronic expansion valve in combination with a target discharge temperature and a target superheat degree of the inverter compressor during an adjustment process; if the temperature of the coil pipe of the indoor heat exchanger is equal to the first preset temperature, keeping the frequency of the variable frequency compressor, the rotating speed of the outdoor heat exchange fan and the rotating speed of the indoor heat exchange fan unchanged, and automatically controlling the opening degree of the electronic expansion valve in combination with the target exhaust temperature and the target superheat degree of the variable frequency compressor within the first preset time; if the temperature of the coil pipe of the indoor heat exchanger is lower than the first preset temperature, keeping the frequency of the variable frequency compressor and the rotating speed of the outdoor heat exchange fan unchanged, increasing the rotating speed of the indoor heat exchange fan, preferably to the maximum rotating speed within the rated rotating speed range, and automatically controlling the opening degree of the electronic expansion valve by combining the target exhaust temperature and the target superheat degree of the variable frequency compressor in the adjusting process.
Further, as a preferred embodiment, the first preset temperature is determined according to an indoor dew point temperature, and the first preset time is determined according to the first preset temperature, wherein the first preset temperature is less than the indoor dew point temperature, and preferably less than 2 ℃; the first preset time is determined in such a way that the lower the first preset temperature is, the longer the first preset time is, the higher the first preset temperature is, and the shorter the first preset time is, so as to ensure that enough dew can be condensed on the surface of the coil pipe of the indoor heat exchanger, thereby effectively ensuring the self-cleaning effect.
As an implementation manner, the controller can obtain the indoor temperature Tai through an indoor temperature sensor and obtain the relative humidity of the indoor air through an indoor humidity sensor
And according to the indoor temperature Tai and the indoor air relative humidity
Calculating the indoor dew point temperature Tdp1, wherein the specific calculation formula is as follows:
as an example, in indoor air relative humidity
In the case of 30%, the indoor temperature Tai (in degrees C.) is related to the indoor dew point temperature Tdp1 (in degrees C.) and the first preset temperature Tet1 (in degrees C.) as follows:
| indoor temperature | Relative humidity | Indoor dew point temperature Tdp1 | First preset temperature Tet1 |
| 17 | 30％ | ﹣0.13 | ﹣2.13 |
| 18 | 30％ | 0.74 | ﹣1.26 |
| 19 | 30％ | 1.62 | ﹣0.38 |
| 20 | 30％ | 2.49 | 0.49 |
| 21 | 30％ | 3.36 | 1.36 |
| 22 | 30％ | 4.23 | 2.23 |
| 23 | 30％ | 5.10 | 3.10 |
| 24 | 30％ | 5.97 | 3.97 |
| 25 | 30％ | 6.84 | 4.84 |
| 26 | 30％ | 7.71 | 5.71 |
| 27 | 30％ | 8.58 | 6.58 |
| 28 | 30％ | 9.45 | 7.45 |
| 29 | 30％ | 10.33 | 8.33 |
| 30 | 30％ | 11.20 | 9.20 |
It should be noted that the method for calculating the indoor dew point temperature is only a preferred example, and a technician may set a specific calculation mode of the indoor dew point temperature according to actual use requirements.
In addition, it should be noted that, although a person skilled in the art can set the specific value of the second preset temperature according to actual use requirements; however, preferably, the second preset temperature is set to be one of 0 ℃, -3 ℃ and-5 ℃ according to an indoor temperature, and is specifically determined in such a manner that the higher the indoor temperature is, the lower the second preset temperature is, so as to effectively ensure a frosting effect of the indoor heat exchanger.
Next, in step S102, the controller is capable of making the time for which the coil temperature of the indoor heat exchanger is less than or equal to the second preset temperature reach the second preset time duration, so that enough frost appears on the coil surface of the indoor heat exchanger. It should be noted that, the present invention does not limit the specific operation mode of the controller, as long as the coil temperature of the indoor heat exchanger can be adjusted to be within the range of less than or equal to the second preset temperature. For example, the controller may adjust the coil temperature of the indoor heat exchanger by controlling the operating frequency of the inverter compressor, the rotational speed of the indoor heat exchange fan, and the rotational speed of the outdoor heat exchange fan. In addition, it should be noted that, although the embodiment controls the frost degree of the indoor heat exchanger by controlling the length of the second preset time period; however, it is obvious that the frost degree of the indoor heat exchanger can also be controlled by other means, for example, the current of the indoor heat exchange fan, or the coil temperature of the indoor heat exchanger, or the image acquisition.
As a preferred adjustment manner, in the process of adjusting the coil temperature of the indoor heat exchanger to be less than or equal to the second preset temperature, the controller may control the operating frequency of the inverter compressor, the rotational speed of the indoor heat exchange fan, and the rotational speed of the outdoor heat exchange fan according to the indoor temperature, the target indoor temperature, the coil temperature of the indoor heat exchanger, and the second preset temperature, and the specific adjustment manner may refer to the adjustment manner described in the preferred embodiment, so as to achieve self-cleaning and better meet the heat exchange requirements of the user.
Further, in step S103, the controller may control the frequency of the inverter compressor to be adjusted to the preset frequency, so as to prevent the user experience from being affected by excessive noise generated during the reversing of the four-way valve, thereby effectively ensuring the user experience while realizing self-cleaning. It should be noted that, a technician may set the specific value of the preset frequency according to the actual conditions of different air conditioning units and the actual use requirements of users. And after the frequency of the variable frequency compressor is reduced to the preset frequency, the controller controls the four-way valve to change the direction, so that the refrigerant in the main circulation loop reversely circulates, and frost on the surface of the coil pipe of the indoor heat exchanger is gradually melted to realize self-cleaning of the indoor heat exchanger.
Then, after the controller controls the four-way valve to switch over, step S104 is executed, that is, the controller controls the indoor heat exchange fan to stop operating, so as to prevent the indoor heat exchange fan from blowing heat generated by the indoor heat exchanger into the room to affect user experience; of course, as a preferred embodiment, the indoor heat exchange fan may be set to be turned off in a delayed manner, that is, turned off after frost in the indoor heat exchanger is thawed, so as to effectively utilize cold energy generated during defrosting to reduce indoor temperature, thereby further achieving the effect of saving energy consumption. As a preferred embodiment, the indoor heat exchange fan is operated again after the step S107 is performed, so as to effectively avoid the problem that the indoor heat exchange fan blows heat generated by the indoor heat exchanger into the room, which affects user experience.
In step S105, the controller is capable of making the time that the coil temperature of the outdoor heat exchanger is less than or equal to the third preset temperature and greater than the fourth preset temperature continue to reach the third preset time period, so that enough condensation appears on the coil surface of the outdoor heat exchanger. It should be noted that, the present invention does not limit the specific operation mode of the controller, as long as the temperature of the coil of the outdoor heat exchanger can be adjusted to be within a range that is less than or equal to the third preset temperature and greater than the fourth preset temperature. For example, the controller may adjust the coil temperature of the outdoor heat exchanger by controlling the operating frequency of the inverter compressor and the rotational speed of the outdoor heat exchange fan.
Further, as a preferred embodiment, the third preset temperature is determined according to an outdoor dew point temperature, and the third preset time period is determined according to the third preset temperature, wherein the third preset temperature is less than the outdoor dew point temperature, and preferably less than 1 ℃; the third preset time is determined in such a way that the lower the third preset temperature is, the longer the third preset time is, the higher the third preset temperature is, and the shorter the third preset time is, so that sufficient dew can be condensed on the surface of the coil pipe of the outdoor heat exchanger, and the self-cleaning effect is effectively ensured.
As an implementation manner, the controller can obtain the outdoor temperature Tao through the outdoor temperature sensor, and obtain the outdoor air relative humidity Rh through the outdoor humidity sensor, of course, the present invention does not limit any specific manner of obtaining the outdoor temperature and the outdoor air relative humidity by the controller, and a technician can set the method according to actual use requirements, and then calculate the outdoor dew point temperature Tdp2 according to the outdoor temperature Tao and the outdoor air relative humidity Rh, and the specific calculation formula is as follows:
Tdp2＝(﹣0.1Rh2+0.32Rh+0.784)×Tao－(15Rh2－40.59Rh+25.761)
as an example, in the case where the outdoor air relative humidity Rh is 80%, the outdoor temperature Tao (in degrees centigrade) is related to the outdoor dew point temperature Tdp2 (in degrees centigrade) and the third preset temperature Tct1 (in degrees centigrade) as follows:
| outdoor temperature | Relative humidity | Outdoor dew point temperature Tdp2 | Third preset temperature Tct1 |
| 5 | 80％ | 1.99 | 0.99 |
| 6 | 80％ | 2.97 | 1.97 |
| 7 | 80％ | 3.94 | 2.94 |
| 8 | 80％ | 4.92 | 3.92 |
| 9 | 80％ | 5.90 | 4.90 |
| 10 | 80％ | 6.87 | 5.87 |
| 11 | 80％ | 7.85 | 6.85 |
| 12 | 80％ | 8.82 | 7.82 |
| 13 | 80％ | 9.80 | 8.80 |
| 14 | 80％ | 10.78 | 9.78 |
| 15 | 80％ | 11.75 | 10.75 |
It should be noted that the method for calculating the outdoor dew point temperature is only a preferred example, and a technician may set a specific calculation mode of the outdoor dew point temperature according to actual use requirements.
In addition, it should be noted that, although a person skilled in the art may set the specific value of the fourth preset temperature according to actual use requirements; however, preferably, the fourth preset temperature is set to be one of 0 ℃, -3 ℃ and-5 ℃ according to the outdoor temperature, and is specifically determined in such a manner that the higher the outdoor temperature is, the lower the fourth preset temperature is, so as to effectively ensure the frosting effect of the outdoor heat exchanger.
Next, in step S106, the controller can make the time that the coil temperature of the outdoor heat exchanger is less than or equal to the fourth preset temperature reach the fourth preset time to make the coil surface of the outdoor heat exchanger frost sufficiently. It should be noted that, the present invention does not limit the specific operation mode of the controller, as long as the coil temperature of the outdoor heat exchanger can be adjusted to be less than or equal to the fourth preset temperature. For example, the controller may adjust the coil temperature of the outdoor heat exchanger by controlling the operating frequency of the inverter compressor and the rotational speed of the outdoor heat exchange fan. In addition, it should be noted that, although the frost degree of the outdoor heat exchanger is controlled by controlling the length of the fourth preset time period in the embodiment; however, it is obvious that the frost degree of the outdoor heat exchanger can also be controlled by other means, for example, the current magnitude of the outdoor heat exchange fan, or the coil temperature of the outdoor heat exchanger, or the image acquisition manner.
Further, in step S107, the controller may control the frequency of the inverter compressor to be adjusted to the preset frequency, so as to prevent the user experience from being affected by excessive noise generated during the reversing of the four-way valve, thereby effectively ensuring the user experience while realizing self-cleaning. It should be noted that, a technician may set the specific value of the preset frequency according to the actual conditions of different air conditioning units and the actual use requirements of users. And after the frequency of the variable frequency compressor is reduced to the preset frequency, the controller controls the four-way valve to reverse again, so that the refrigerant in the main circulation loop realizes reverse circulation again, and frost on the surface of the coil pipe of the outdoor heat exchanger is gradually melted to realize self-cleaning of the outdoor heat exchanger. After the four-way valve is controlled to be reversed again, the controller controls the indoor heat exchange fan to be started again, so that the outdoor heat exchanger can be automatically cleaned, meanwhile, cold air can be supplied to the indoor space as much as possible, and the energy-saving effect is effectively achieved. Then, if the self-cleaning control method belongs to an independent self-cleaning mode, stopping the machine after the outdoor heat exchanger finishes self-cleaning, namely after the outdoor heat exchanger finishes defrosting; if the self-cleaning control method is a segment of operation depending on the cooling mode, the cooling mode is normally executed after step S107 is finished, so as to maximally implement the energy saving effect.
Referring next to fig. 3, a flowchart of the self-cleaning control method of the present invention is shown. It should be noted that, under the condition that the indoor environment has a heating requirement, based on the air conditioning unit described in the foregoing embodiment, the first heat exchanger in the self-cleaning control method is set as the outdoor heat exchanger, and the second heat exchanger is set as the indoor heat exchanger, so that the self-cleaning effect is achieved, and at the same time, the heat exchange requirement of the user can be better considered, and the user experience is further improved to the greatest extent. The skilled person in the art can understand that the present invention does not limit the way of determining the heat exchange requirement by the controller, and the skilled person can set the heat exchange requirement by himself according to the actual use requirement, for example, the controller can determine the heat exchange requirement by the indoor temperature, or by the heat exchange mode executed last time; the self-cleaning control method described in the preferred embodiment may be a single operation mode, or may be a section of operation depending on the heating mode, and these changes do not depart from the basic principle of the present invention, and should fall into the protection scope of the present invention. As shown in fig. 3, the self-cleaning control method of the present invention specifically includes the following steps under heating requirement:
s201: enabling the time that the temperature of a coil pipe of the outdoor heat exchanger is less than or equal to a first preset temperature and greater than a second preset temperature to reach a first preset duration continuously;
s202: enabling the time that the temperature of the coil pipe of the outdoor heat exchanger is less than or equal to a second preset temperature to continuously reach a second preset time length;
s203: adjusting the frequency of the variable frequency compressor to a preset frequency, and reversing the four-way valve;
s204: stopping the indoor heat exchange fan;
s205: enabling the time that the temperature of the coil pipe of the indoor heat exchanger is less than or equal to a third preset temperature and greater than a fourth preset temperature to reach a third preset time duration;
s206: enabling the time that the temperature of the coil pipe of the indoor heat exchanger is less than or equal to the fourth preset temperature to continuously reach the fourth preset time;
s207: and adjusting the frequency of the variable frequency compressor to a preset frequency, and reversing the four-way valve again.
It should be noted that, since the specific operation flow of the self-cleaning control method of the present invention under the heating requirement is similar to the specific operation flow under the cooling requirement, it is not described herein again.
Finally, it should be noted that the above examples are all preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. When the present invention is actually used, a part of the steps may be added or deleted as needed or the order between the different steps may be changed by those skilled in the art. Such variations are not to be regarded as a departure from the spirit and scope of the invention.
So far, the technical solutions of the present invention have been described with reference to the accompanying drawings, but it is obvious to those skilled in the art that the scope of the present invention is 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 (10)
1. A self-cleaning control method for an air conditioning unit, wherein the air conditioning unit comprises a main circulation loop and a first heat exchanger and a second heat exchanger which are arranged on the main circulation loop, the self-cleaning control method comprises the following steps:
enabling the temperature of a coil of the first heat exchanger to be less than or equal to a first preset temperature and greater than a second preset temperature;
enabling the coil temperature of the first heat exchanger to be less than or equal to the second preset temperature;
reversely circulating the refrigerant in the main circulation loop;
enabling the temperature of the coil of the second heat exchanger to be less than or equal to a third preset temperature and greater than a fourth preset temperature;
the temperature of the coil of the second heat exchanger is less than or equal to the fourth preset temperature;
and reversely circulating the refrigerant in the main circulation loop again.
2. The self-cleaning control method of claim 1, wherein the step of making the coil temperature of the first heat exchanger less than or equal to a first preset temperature and greater than a second preset temperature specifically comprises:
enabling the time that the temperature of the coil of the first heat exchanger is less than or equal to the first preset temperature and greater than the second preset temperature to reach a first preset time length; and/or
The step of "making the coil temperature of the first heat exchanger less than or equal to the second preset temperature" specifically includes:
and enabling the time that the temperature of the coil of the first heat exchanger is less than or equal to the second preset temperature to continuously reach a second preset time.
3. The self-cleaning control method of claim 2, wherein the first predetermined temperature and/or the first predetermined period of time is determined based on a dew point temperature of a space in which the first heat exchanger is located.
4. The self-cleaning control method of claim 1, wherein the step of making the coil temperature of the second heat exchanger less than or equal to a third preset temperature and greater than a fourth preset temperature specifically comprises:
enabling the time that the temperature of the coil of the second heat exchanger is less than or equal to the third preset temperature and greater than the fourth preset temperature to reach a third preset time duration; and/or
The step of "making the coil temperature of the second heat exchanger less than or equal to the fourth preset temperature" specifically includes:
and enabling the time that the temperature of the coil of the second heat exchanger is less than or equal to the fourth preset temperature to continuously reach a fourth preset time.
5. The self-cleaning control method of claim 4, wherein the third predetermined temperature and/or the third predetermined period of time is determined based on a dew point temperature of a space in which the second heat exchanger is located.
6. The self-cleaning control method according to any one of claims 1 to 5,
the specific way of changing the coil temperature of the first heat exchanger and/or the second heat exchanger is:
and the operating frequency of an inverter compressor arranged on the main circulation loop is adjusted, and/or the rotating speed of a first heat exchange fan arranged near the first heat exchanger is adjusted, and/or the rotating speed of a second heat exchange fan arranged near the second heat exchanger is adjusted, so that the temperature of the coil of the first heat exchanger and/or the second heat exchanger is changed.
7. The self-cleaning control method according to claim 6, further comprising:
the first heat exchange fan is maintained in a stopped state after the step of "reversely circulating the refrigerant in the main circulation circuit" is performed and before the step of "reversely circulating the refrigerant in the main circulation circuit again" is performed.
8. The self-cleaning control method of claim 6, wherein before the step of performing "reverse-circulating a refrigerant in the main circulation circuit", the self-cleaning control method further comprises:
and adjusting the frequency of the variable frequency compressor to a preset frequency.
9. The self-cleaning control method according to any one of claims 1 to 5, wherein before performing the step of making the coil temperature of the first heat exchanger less than or equal to a first preset temperature and greater than a second preset temperature, the self-cleaning method further comprises:
acquiring indoor heat exchange requirements;
and according to the indoor heat exchange requirement, determining that the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger or that the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger.
10. The self-cleaning control method of claim 9, wherein the step of determining that the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger or the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger according to the indoor heat exchange requirement specifically comprises:
if the indoor space needs to be refrigerated, the first heat exchanger is an indoor heat exchanger and the second heat exchanger is an outdoor heat exchanger;
if the indoor needs to be heated, the first heat exchanger is an outdoor heat exchanger and the second heat exchanger is an indoor heat exchanger.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374051.6A CN113623813A (en) | 2020-05-06 | 2020-05-06 | Self-cleaning control method for air conditioning unit |
| PCT/CN2021/078565 WO2021223501A1 (en) | 2020-05-06 | 2021-03-02 | Self-cleaning control method for air conditioning set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010374051.6A CN113623813A (en) | 2020-05-06 | 2020-05-06 | Self-cleaning control method for air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113623813A true CN113623813A (en) | 2021-11-09 |
Family
ID=78376666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010374051.6A Pending CN113623813A (en) | 2020-05-06 | 2020-05-06 | Self-cleaning control method for air conditioning unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113623813A (en) |
| WO (1) | WO2021223501A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118789A (en) * | 2004-10-21 | 2006-05-11 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN104848738A (en) * | 2015-04-22 | 2015-08-19 | 珠海格力电器股份有限公司 | Cleaning method and device for indoor heat exchanger of air conditioner |
| CN106288217A (en) * | 2016-08-23 | 2017-01-04 | 广东美的制冷设备有限公司 | The heat exchanger cleaning control method of air-conditioner and device |
| CN106679111A (en) * | 2017-01-23 | 2017-05-17 | 深圳创维空调科技有限公司 | Automatic cleaning treatment method and automatic cleaning treatment system of air-conditioning heat exchanger |
| CN109140666A (en) * | 2018-09-03 | 2019-01-04 | 珠海格力电器股份有限公司 | Self-cleaning method for internal and external machines of air conditioner |
| CN110030664A (en) * | 2019-03-26 | 2019-07-19 | 青岛海尔空调器有限总公司 | A kind of electrochemistry air-conditioning and its control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152390B (en) * | 2015-04-27 | 2020-03-06 | 广东美的制冷设备有限公司 | Air conditioner control method and device |
| CN106152413B (en) * | 2016-07-27 | 2019-02-05 | 青岛海尔空调器有限总公司 | Machine cleaning method inside and outside air-conditioning |
| CN106196476A (en) * | 2016-07-27 | 2016-12-07 | 青岛海尔空调器有限总公司 | Air-conditioning internal-external machine cleaning method |
| CN106594976B (en) * | 2016-11-11 | 2018-12-18 | 青岛海尔空调器有限总公司 | Machine cleaning method inside and outside air-conditioning |
| CN109373504B (en) * | 2018-11-22 | 2020-01-17 | 珠海格力电器股份有限公司 | Evaporator self-cleaning method for increasing frost layer thickness and air conditioner |
-
2020
- 2020-05-06 CN CN202010374051.6A patent/CN113623813A/en active Pending
-
2021
- 2021-03-02 WO PCT/CN2021/078565 patent/WO2021223501A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118789A (en) * | 2004-10-21 | 2006-05-11 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN104848738A (en) * | 2015-04-22 | 2015-08-19 | 珠海格力电器股份有限公司 | Cleaning method and device for indoor heat exchanger of air conditioner |
| CN106288217A (en) * | 2016-08-23 | 2017-01-04 | 广东美的制冷设备有限公司 | The heat exchanger cleaning control method of air-conditioner and device |
| CN106679111A (en) * | 2017-01-23 | 2017-05-17 | 深圳创维空调科技有限公司 | Automatic cleaning treatment method and automatic cleaning treatment system of air-conditioning heat exchanger |
| CN109140666A (en) * | 2018-09-03 | 2019-01-04 | 珠海格力电器股份有限公司 | Self-cleaning method for internal and external machines of air conditioner |
| CN110030664A (en) * | 2019-03-26 | 2019-07-19 | 青岛海尔空调器有限总公司 | A kind of electrochemistry air-conditioning and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021223501A1 (en) | 2021-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107166639B (en) | Air conditioner defrosting control method and control device and air conditioner | |
| CN109253525B (en) | Self-cleaning control method for outdoor heat exchanger of fixed-frequency air conditioner and air conditioner | |
| EP2187141B1 (en) | Air-conditioning apparatus | |
| JP5389211B2 (en) | Air conditioning control method and air conditioner | |
| CN111174372B (en) | Air conditioner control method and device, storage medium and air conditioner | |
| CN107152819A (en) | Air-conditioning device and its control method | |
| CN107606725B (en) | Heat storage defrosting control method and device and air conditioner | |
| CN105485865B (en) | Air conditioner control method and device and air conditioner | |
| CN106766007B (en) | Air conditioner and method for improving comfort degree of air conditioner in defrosting process | |
| CN108758973B (en) | Defrosting control method for air conditioner | |
| CN112283902A (en) | Air conditioner control method and air conditioner | |
| CN107894061B (en) | Fresh air conditioner, defrosting method and computer readable storage medium | |
| CN108692423B (en) | Defrosting control method for air conditioner | |
| JP5619056B2 (en) | Air conditioner | |
| CN115031351B (en) | Air conditioner and defrosting control method thereof | |
| CN115095955A (en) | Air conditioner and defrosting control method thereof | |
| CN111322784A (en) | Air conditioning unit capable of continuously heating and control method thereof | |
| CN109028464B (en) | Defrosting control method for air conditioner | |
| JP5225442B2 (en) | Air conditioner | |
| CN110513831B (en) | Control method for improving heating comfort during defrosting and air conditioning system | |
| CN114791153A (en) | Multi-split air conditioner and cleaning method, control device and readable storage medium thereof | |
| JP5730689B2 (en) | Air conditioning operation control system | |
| CN108692425B (en) | Defrosting control method for air conditioner | |
| CN108775741B (en) | Defrosting control method for air conditioner | |
| CN113623813A (en) | Self-cleaning control method for air conditioning unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |
|
| RJ01 | Rejection of invention patent application after publication |