CN115654659A - Control method and control device of air conditioner and air conditioner - Google Patents
Control method and control device of air conditioner and air conditioner Download PDFInfo
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- CN115654659A CN115654659A CN202211379143.9A CN202211379143A CN115654659A CN 115654659 A CN115654659 A CN 115654659A CN 202211379143 A CN202211379143 A CN 202211379143A CN 115654659 A CN115654659 A CN 115654659A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention relates to the technical field of air conditioners, and provides a control method and a control device of an air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the following steps: responding to the starting signal, and acquiring instruction information; after determining that the command of the heating mode is received, the air conditioner operates the heating mode, and increases the heat flowing through the condenser coil so as to delay the frosting on the surface of the condenser coil through the heat. When the air conditioner operates in a heating mode, the heat flowing through the condenser coil is synchronously improved, the surface temperature of the condenser coil can be improved or maintained through the heat flowing through the condenser coil, the frosting on the surface of the condenser coil is delayed, the frosting period on the surface of the condenser coil is prolonged, the defrosting frequency of the air conditioner in the heating mode is further reduced, the phenomenon that frequent defrosting causes large fluctuation of indoor temperature is avoided, and the comfort of a user is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control device of an air conditioner and the air conditioner.
Background
When the air conditioner operates in the heating mode, the outdoor heat exchanger needs to absorb heat from the outdoor environment (low-temperature air), the temperature of the surface of the coil of the condenser is generally low (below 0 ℃), and therefore water vapor in the air is easy to condense into frost on the surface of the condenser during the operation of the heating mode. After the surface of the coil of the condenser is frosted, the capacity of the coil for receiving heat of the outdoor environment is reduced, the heat exchange effect of the outdoor heat exchanger is further reduced, and the frosting condition on the surface of the coil is further serious, so that a vicious circle is formed. In the related art, when the system detects that the heat exchanger frosts to a certain degree, the defrosting mode is started, the temperature of the refrigerant is increased to defrost the outdoor, and the heating mode is recovered after defrosting is finished. In the defrosting process, the indoor heat exchange temperature is low, and an indoor fan is stopped under the ordinary condition, so that in the defrosting process, the indoor heating is stopped, and the fluctuation of the indoor temperature is large.
Disclosure of Invention
The present invention has been made to solve at least one of the technical problems occurring in the related art. Therefore, the invention provides a control method of an air conditioner, when the air conditioner runs in a heating mode, the heat flowing through a condenser coil is synchronously increased, the surface temperature of the condenser coil can be increased or maintained through the heat, the frosting on the surface of the condenser coil is delayed, the defrosting frequency of the air conditioner in the heating mode is further reduced, and the condition that the fluctuation of the indoor temperature is large due to frequent defrosting is avoided.
The invention also provides a control device of the air conditioner.
The invention also provides an air conditioner.
According to a first aspect of the present invention, there is provided a control method for an air conditioner, including:
responding to the starting signal, and acquiring instruction information;
after determining that an instruction for operating a heating mode is received, the air conditioner operates the heating mode, and increases heat flowing through a condenser coil so as to delay frosting on the surface of the condenser coil through the heat.
According to an embodiment of the present invention, the step of increasing the heat flowing through the condenser coil comprises:
the heat blown to the condenser coil pipe in unit time is improved, and the flow of the refrigerant in the condenser coil pipe is reduced.
According to an embodiment of the present invention, the step of increasing the heat blown to the condenser coil in a unit time and reducing the flow rate of the refrigerant in the condenser coil includes:
acquiring the current wind speed of an outdoor fan, the current opening of an electronic expansion valve and the current temperature of a condenser coil;
determining a frosting risk grade according to the current temperature and the defrosting temperature;
and increasing the current wind speed of the outdoor fan to a target wind speed according to the frosting risk grade, and reducing the current opening of the electronic expansion valve to a target opening.
According to an embodiment of the present invention, the step of determining the frost risk level according to the current temperature and the defrosting temperature specifically includes:
determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to a first temperature threshold value and larger than a second temperature threshold value, and determining that the frosting risk level is a first risk level;
determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to the second temperature threshold and larger than a third temperature threshold, and determining that the frosting risk level is a second risk level;
and determining that the difference value between the current temperature and the defrosting temperature is less than or equal to the third temperature threshold and is greater than 0 ℃, and determining that the frosting risk level is a third risk level.
According to an embodiment of the present invention, the step of increasing the current wind speed of the outdoor fan to a target wind speed according to the frost risk level and decreasing the current opening degree of the electronic expansion valve to a target opening degree includes:
if the frosting risk level is determined to be the first risk level, the outdoor fan is adjusted to the maximum wind speed from the current wind speed, and the opening degree of the electronic expansion valve is adjusted to a first target opening degree;
if the frosting risk grade is determined to be the second risk grade, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening of the electronic expansion valve to a second target opening;
if the frosting risk grade is determined to be the third risk grade, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening of the electronic expansion valve to a third target opening;
wherein the first target opening degree, the second target opening degree, and the third target opening degree decrease in order.
According to an embodiment of the present invention, the third target opening degree is a minimum opening degree of the electronic expansion valve.
According to an embodiment of the present invention, said step of determining a frost risk level based on a temperature of said condenser coil and a defrost temperature further comprises:
and determining that the difference between the temperature of the condenser coil and the defrosting temperature is less than or equal to 0 ℃, and then the air conditioner enters a defrosting mode.
According to one embodiment of the present invention, said step of determining a frost risk level based on the temperature of the condenser coil and the defrost temperature further comprises:
acquiring the outdoor environment temperature;
and determining the defrosting temperature according to the outdoor environment temperature.
According to a second aspect of the present invention, there is provided a control apparatus for an air conditioner, comprising:
the acquisition module is used for responding to the starting signal and acquiring instruction information;
and the control module is used for determining that the air conditioner operates the heating mode after receiving the instruction of operating the heating mode, improving the heat flowing through the condenser coil and delaying the frosting on the surface of the condenser coil through the heat.
According to the air conditioner provided by the embodiment of the third aspect of the invention, the air conditioner executes the control method of the air conditioner or comprises the control device of the air conditioner.
One or more technical solutions in the present invention have at least one of the following technical effects:
according to a first aspect of the present invention, there is provided a control method for an air conditioner, including: responding to the starting signal, and acquiring instruction information; after determining that the command of the heating mode is received, the air conditioner operates the heating mode, and increases the heat flowing through the condenser coil so as to delay the frosting on the surface of the condenser coil through the heat. When the air conditioner operates in a heating mode, the heat flowing through the condenser coil is synchronously improved, the surface temperature of the condenser coil can be improved or maintained through the heat flowing through the condenser coil, the frosting on the surface of the condenser coil is delayed, the frosting period on the surface of the condenser coil is prolonged, the defrosting frequency of the air conditioner in the heating mode is further reduced, the phenomenon that frequent defrosting causes large fluctuation of indoor temperature is avoided, and the comfort of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a control device of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Reference numerals:
300. a receiving module; 301. and a control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
In the related art, when the system detects that the heat exchanger frosts to a certain degree, the defrosting mode is started, the temperature of the refrigerant is increased to defrost the outdoor, and the heating mode is recovered after defrosting is finished. In the defrosting process, the indoor heat exchange temperature is low, and an indoor fan is stopped under the ordinary condition, so that in the defrosting process, the indoor heating is stopped, and the fluctuation of the indoor temperature is large.
Referring to fig. 1, a method for controlling an air conditioner according to an embodiment of the present invention includes the following steps:
s100, responding to the starting signal, and acquiring instruction information;
s200, after the command of operating the heating mode is determined, the air conditioner operates the heating mode, and heat flowing through the condenser coil is increased so as to delay frosting on the surface of the condenser coil through the heat.
It is understood that the air conditioner includes an evaporator, a compressor, a condenser, a four-way valve, an electronic expansion valve, etc. which are communicated through refrigerant lines. In the heating mode, the four-way valve adjusts the sequence of the refrigerant flowing through the evaporator and the condenser, the high-temperature refrigerant enables the evaporator to heat indoors, and the low-temperature refrigerant enables the condenser to absorb heat outdoors.
In the heating mode, the surface of the condenser coil is easily frosted by a low-temperature refrigerant, the air conditioner increases the heat flowing through the condenser coil in the heating mode, the surface temperature of the condenser coil can be improved or maintained through the heat, the frosting on the surface of the condenser coil is delayed, the frosting period on the surface of the condenser coil is prolonged, the defrosting frequency of the air conditioner in the heating mode is further reduced, and the large fluctuation of the indoor temperature is avoided.
According to one embodiment of the present invention, the step of increasing the heat flow through the condenser coil comprises:
s210, improving the heat blown to the condenser coil pipe in unit time and reducing the flow of the refrigerant in the condenser coil pipe.
It will be appreciated that the heat flow through the condenser coil includes heat from the outdoor air and heat from the refrigerant in the condenser coil, and thus the air conditioner may increase the heat flow through the condenser coil by increasing the heat from the outdoor air, increase the heat flow through the condenser coil by increasing the heat from the refrigerant in the condenser coil, and increase both the heat flow from the outdoor air and the heat flow from the refrigerant in the condenser coil.
It should be noted that the increase of the heat from the outdoor air can be realized by increasing the air speed of the outdoor fan or the outdoor air temperature, and the increase of the heat of the refrigerant in the condenser coil can be realized by increasing the refrigerant temperature.
According to the control method of the air conditioner provided by the embodiment of the invention, the heat blown to the condenser coil pipe in unit time is improved, meanwhile, the flow in the condenser coil pipe is reduced, and the heat flowing through the condenser coil pipe can be improved. When the heat blowing to the condenser coil in unit time is improved, the temperature of the condenser coil can be kept stable or increased, the condenser coil is not easy to frost, the defrosting period of the condenser in a heating mode is prolonged, the fluctuation of indoor temperature is small, and the comfort of a user is improved. When reducing the flow in the condenser coil, increased the exhaust pressure and the exhaust temperature of compressor gas vent, can lead to the temperature increase of refrigerant in the refrigerant circulation pipeline, and then improved the temperature of the refrigerant in the condenser coil of flowing through, can make the temperature of condenser coil remain stable or increase, the condenser coil is difficult to frosting.
According to an embodiment of the present invention, the step of increasing the heat blown to the condenser coil in a unit time and decreasing the flow rate of the refrigerant in the condenser coil includes:
and S211, acquiring the current wind speed of the outdoor fan, the current opening of the electronic expansion valve and the current temperature of the condenser coil.
And S212, determining a frosting risk grade according to the current temperature and the defrosting temperature.
And S213, increasing the current wind speed of the outdoor fan to a target wind speed according to the frosting risk grade, and reducing the current opening degree of the electronic expansion valve to a target opening degree according to the frosting risk grade.
It can be understood that, in the embodiment of the present invention, the air speed of the outdoor fan is adjusted to increase the flow of the outdoor air blown to the condenser coil, and under the condition that the temperature of the outdoor air is not changed, the heat exchange efficiency between the outdoor air and the condenser coil is increased, and the heat flowing through the condenser coil is increased.
According to one embodiment of the present invention, the step of determining a frost risk level based on the temperature of the condenser coil and the defrost temperature further comprises:
and S2121, acquiring the outdoor environment temperature.
And S2122, determining the defrosting temperature according to the outdoor environment temperature.
It will be appreciated that the defrost temperature of the condenser coil is related to the outdoor ambient temperature, assuming that the outdoor ambient temperature is Tao and the defrost temperature of the condenser coil is Ta, the following relationship exists:
Ta＝C×Tao－α
wherein: tao is less than 0 ℃, and C =0.8; tao is more than or equal to 0 ℃, and C =0.6; α is a fixed value, α =6.
According to the formula, the defrosting temperature is related to the outdoor environment temperature, and is-10 ℃ if the outdoor environment temperature is-5 ℃; assuming that the outdoor ambient temperature is 2 degrees celsius, the defrost temperature is-4.8 degrees celsius.
Returning to the step S211, the current wind speed of the outdoor fan may be determined according to the gear of the outdoor fan and the rotational speed of the fan, a temperature sensor may be disposed on the outer surface of the condenser coil to obtain the current temperature Tc of the condenser coil, and when Tc is less than Ta, the air conditioner starts to operate the defrosting mode.
In step S212, a frost risk level is determined according to the current temperature and the defrosting temperature. It is understood that the closer the current temperature is to the defrost temperature, the higher the frost risk level; the greater the difference between the current temperature and the defrost temperature, the lower the frost risk level.
In step S213, increasing the current wind speed of the outdoor fan to a target wind speed according to the frost risk level, and decreasing the current opening of the electronic expansion valve to a target opening according to the frost risk level: the higher the frost risk level, the larger the target wind speed, and the smaller the target opening.
In order to ensure that the air conditioner can continue to operate in the heating mode, the target opening degree is greater than or equal to the minimum opening degree of the electronic expansion valve, and the target air speed is less than or equal to the maximum air speed of the outdoor fan.
According to an embodiment of the present invention, the step of determining the frost risk level according to the current temperature and the defrosting temperature specifically includes:
and S2123, determining that the difference value between the current temperature and the defrosting temperature is greater than a first temperature threshold value, so that the frosting risk is low, and the heat flowing through the condenser coil does not need to be increased.
And S2124, determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to a first temperature threshold value and larger than a second temperature threshold value, and determining that the frosting risk level is the first risk level.
And S2125, determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to a second temperature threshold and larger than a third temperature threshold, and determining that the frosting risk level is a second risk level.
And S2126, determining that the difference value between the current temperature and the defrosting temperature is less than or equal to a third temperature threshold and is greater than 0 ℃, and determining that the frosting risk level is a third risk level.
It will be appreciated that the difference between the current temperature and the defrost temperature is divided into several zones, for example a first temperature threshold of 10 degrees celsius, a second temperature threshold of 8 degrees celsius and a third temperature threshold of 5 degrees celsius.
When the difference value between the current temperature and the defrosting temperature is more than 10 ℃, the frosting risk of the condenser coil is low, the outdoor fan operates according to the current wind speed, and the electronic expansion valve keeps the current opening degree.
When the difference between the current temperature and the defrosting temperature is less than or equal to 10 ℃ and greater than 8 ℃, the frosting risk level is a first risk level.
When the difference between the current temperature and the defrosting temperature is less than or equal to 8 ℃ and greater than 5 ℃, the frosting risk level is a second risk level.
And when the difference between the current temperature and the defrosting temperature is less than or equal to 5 ℃ and is greater than 0 ℃, the frosting risk level is a third risk level.
And when the difference value between the current temperature and the defrosting temperature is less than or equal to 0 ℃, the air conditioner enters a defrosting mode.
According to the control method of the air conditioner, provided by the embodiment of the invention, a plurality of frosting risk levels are divided according to the difference value between the current temperature and the defrosting temperature, and a targeted heat compensation strategy can be formulated at each level, so that the frosting of the coil pipe can be delayed, and the energy consumption of the air conditioner can be reduced.
According to an embodiment of the present invention, the step of increasing the current wind speed of the outdoor fan to the target wind speed according to the frost risk level, and decreasing the current opening degree of the electronic expansion valve to the target opening degree according to the frost risk level specifically includes:
s2131, if the frosting risk level is determined to be a first risk level, the outdoor fan is adjusted to the maximum wind speed from the current wind speed, and the opening degree of the electronic expansion valve is adjusted to a first target opening degree.
And S2132, if the frosting risk level is determined to be a second risk level, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening of the electronic expansion valve to a second target opening.
And S2133, if the frosting risk level is determined to be a third risk level, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening degree of the electronic expansion valve to a third target opening degree.
Wherein the first target opening degree, the second target opening degree and the third target opening degree are sequentially decreased.
It can be understood that when the air conditioner operates in a heating mode, the air speed of the outdoor fan is started to be the maximum air speed, sufficient heat exchange between the condenser coil and outdoor air is ensured, the temperature of the surface of the condenser coil can be maintained or improved, and frosting on the surface of the condenser coil is delayed.
Under different frost risk levels, the opening degree of the electronic expansion valve is gradually decreased, for example, the current opening degree is 360, the first target opening degree is 300, the second target opening degree is 280, and the third target opening degree is 260.
In some embodiments, the maximum wind speed of the outdoor fan is 1100r/min.
And when the frosting risk level is a first risk level, adjusting the current wind speed of the outdoor fan to 1100r/min, and adjusting the opening of the electronic expansion valve to 300.
And when the frosting risk level is a second risk level, adjusting the current wind speed of the outdoor fan to 1100r/min, and adjusting the opening of the electronic expansion valve to 280.
And when the frosting risk level is a third risk level, adjusting the current wind speed of the outdoor fan to 1100r/min, and adjusting the opening degree of the electronic expansion valve to 260.
It should be noted that, when the difference between the current temperature and the defrosting temperature is less than or equal to 5 degrees celsius and greater than 0 degree celsius, the frosting risk level is the third risk level. And adjusting the current wind speed of the outdoor fan to 1100r/min, and adjusting the opening degree of the electronic expansion valve to 260, wherein the third target opening degree may also be the minimum opening degree of the electronic expansion valve.
According to one embodiment of the present invention, the step of determining a frost risk level based on the temperature of the condenser coil and the defrost temperature further comprises:
and S2127, determining that the difference between the temperature of the condenser coil and the defrosting temperature is less than or equal to 0 ℃, and enabling the air conditioner to enter a defrosting mode.
It can be understood that when the difference between the temperature of the condenser coil and the defrosting temperature is less than or equal to 0 degrees celsius, i.e., the temperature of the condenser coil is less than or equal to the defrosting temperature, the risk of surface frost on the condenser coil is high or frost is formed, and the air conditioner enters the defrosting mode.
Referring to fig. 2, a control device for an air conditioner according to a second aspect of the present invention includes:
the obtaining module 300 is configured to obtain the instruction information in response to the start signal.
The control module 301 is configured to determine that, after receiving an instruction to operate the heating mode, the air conditioner operates the heating mode, increase heat flowing through the condenser coil, and delay frosting on the surface of the condenser coil through the heat.
In the heating mode, the surface of the condenser coil is easily frosted by a low-temperature refrigerant, the air conditioner increases the heat flowing through the condenser coil in the heating mode, the surface temperature of the condenser coil can be improved or maintained through the heat, the frosting on the surface of the condenser coil is delayed, the frosting period on the surface of the condenser coil is prolonged, the defrosting frequency of the air conditioner in the heating mode is further reduced, and the large fluctuation of the indoor temperature is avoided.
It should be noted that the above steps S100 and S200, and other steps are only for convenience of description, and do not constitute a timing limitation for each step in the control method of the air conditioner. Moreover, some contents are described in detail in the control method of the air conditioner provided in the first embodiment, and all contents in the control method of the air conditioner can also be applied to the control device of the air conditioner provided in the second embodiment, and further detailed descriptions are not provided in order to avoid repeated descriptions in the control device of the air conditioner provided in the second embodiment. Similarly, the contents in the above two embodiments can be used to explain the contents of all the following embodiments, and therefore repeated contents in the following embodiments are not described in detail. The technical effect of the control device of the air conditioner provided by the embodiment of the invention corresponds to the technical effect of the control method of the air conditioner, and the details are not repeated here.
According to the air conditioner provided by the embodiment of the third aspect of the present invention, the air conditioner executes the control method of the air conditioner provided by the embodiment of the first aspect of the present invention when running, or comprises the control device of the air conditioner provided by the embodiment of the second aspect of the present invention.
When the air conditioner operates in a heating mode, the surface of the condenser coil is easily frosted by a low-temperature refrigerant, the heat flowing through the condenser coil is increased in the heating mode of the air conditioner, the surface temperature of the condenser coil can be increased or maintained through the heat, the frosting on the surface of the condenser coil is delayed, the frosting period on the surface of the condenser coil is prolonged, the defrosting frequency of the air conditioner in the heating mode is further reduced, and the large fluctuation of the indoor temperature is avoided.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include: processor 810 (processor), communication Interface 820 (Communications Interface), memory 830 (memory), and communication bus 840, wherein processor 810, communication Interface 820, and memory 830 communicate with each other via communication bus 840. The processor 810 may call logic instructions in the memory 830 to perform a method of controlling an air conditioner, the method including: responding to the starting signal, and acquiring instruction information; after determining that the command of operating the heating mode is received, the air conditioner operates the heating mode, and increases the heat flowing through the condenser coil so as to delay the frosting on the surface of the condenser coil through the heat.
In addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM) 830, a magnetic disk or an optical disk, and other various media capable of storing program codes.
Further, an embodiment of the present invention discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the control method of the air conditioner provided by the above-mentioned method embodiments, the method includes: responding to the starting signal, and acquiring instruction information; after determining that the command of operating the heating mode is received, the air conditioner operates the heating mode, and increases the heat flowing through the condenser coil so as to delay the frosting on the surface of the condenser coil through the heat.
In another aspect, embodiments of the present invention also provide a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the control method of an air conditioner provided in the above embodiments, the method including: responding to the starting signal, and acquiring instruction information; after determining that an instruction for operating a heating mode is received, the air conditioner operates the heating mode, and increases heat flowing through a condenser coil so as to delay frosting on the surface of the condenser coil through the heat.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method of controlling an air conditioner, comprising:
responding to the starting signal, and acquiring instruction information;
after determining that the command of operating the heating mode is received, the air conditioner operates the heating mode, and increases the heat flowing through the condenser coil so as to delay the frosting on the surface of the condenser coil through the heat.
2. The method as claimed in claim 1, wherein the step of increasing the amount of heat flowing through the condenser coil comprises:
the heat blown to the condenser coil pipe in unit time is improved, and the flow of the refrigerant in the condenser coil pipe is reduced.
3. The method as claimed in claim 2, wherein the step of increasing the amount of heat blown to the condenser coil per unit time and decreasing the flow rate of the refrigerant in the condenser coil includes:
acquiring the current wind speed of an outdoor fan, the current opening of an electronic expansion valve and the current temperature of a condenser coil;
determining a frosting risk grade according to the current temperature and the defrosting temperature;
and increasing the current wind speed of the outdoor fan to a target wind speed according to the frosting risk grade, and reducing the current opening of the electronic expansion valve to a target opening.
4. The method for controlling an air conditioner according to claim 3, wherein the step of determining a frost risk level according to the current temperature and a defrosting temperature specifically comprises:
determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to a first temperature threshold value and larger than a second temperature threshold value, and determining that the frosting risk level is a first risk level;
determining that the difference value between the current temperature and the defrosting temperature is smaller than or equal to the second temperature threshold and larger than a third temperature threshold, and determining that the frosting risk level is a second risk level;
and determining that the difference value between the current temperature and the defrosting temperature is less than or equal to the third temperature threshold and is greater than 0 ℃, and determining that the frosting risk level is a third risk level.
5. The method for controlling an air conditioner according to claim 4, wherein the step of increasing the outdoor fan from the current wind speed to a target wind speed and decreasing the electronic expansion valve from the current opening degree to a target opening degree according to the frost risk level comprises:
if the frosting risk grade is determined to be the first risk grade, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening of the electronic expansion valve to a first target opening;
if the frosting risk grade is determined to be the second risk grade, adjusting the outdoor fan from the current wind speed to the maximum wind speed, and adjusting the opening of the electronic expansion valve to a second target opening;
if the frosting risk level is determined to be the third risk level, the outdoor fan is adjusted to the maximum wind speed from the current wind speed, and the opening degree of the electronic expansion valve is adjusted to a third target opening degree;
wherein the first target opening degree, the second target opening degree, and the third target opening degree decrease in sequence.
6. The control method of an air conditioner according to claim 5, wherein the third target opening degree is a minimum opening degree of the electronic expansion valve.
7. The method of claim 3, wherein the step of determining a frost risk level based on the condenser coil temperature and a defrost temperature further comprises:
and determining that the difference between the temperature of the condenser coil and the defrosting temperature is less than or equal to 0 ℃, and then the air conditioner enters a defrosting mode.
8. The method of claim 3, wherein said step of determining a frost risk level based on the condenser coil temperature and a defrost temperature further comprises:
acquiring the outdoor environment temperature;
and determining the defrosting temperature according to the outdoor environment temperature.
9. A control apparatus of an air conditioner, comprising:
the acquisition module is used for responding to the starting signal and acquiring instruction information;
and the control module is used for determining that the air conditioner operates the heating mode after receiving the instruction of operating the heating mode, improving the heat flowing through the condenser coil and delaying the frosting on the surface of the condenser coil through the heat.
10. An air conditioner characterized in that it is operated to perform a control method of the air conditioner as claimed in any one of claims 1 to 8 or comprises a control device of the air conditioner as claimed in claim 9.
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| CN202211379143.9A CN115654659A (en) | 2022-11-04 | 2022-11-04 | Control method and control device of air conditioner and air conditioner |
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| CN202211379143.9A CN115654659A (en) | 2022-11-04 | 2022-11-04 | Control method and control device of air conditioner and air conditioner |
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