CN111043737A - Method and device for controlling expansion valve and air conditioner - Google Patents
Method and device for controlling expansion valve and air conditioner Download PDFInfo
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- CN111043737A CN111043737A CN201911338308.6A CN201911338308A CN111043737A CN 111043737 A CN111043737 A CN 111043737A CN 201911338308 A CN201911338308 A CN 201911338308A CN 111043737 A CN111043737 A CN 111043737A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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Abstract
The application relates to the technical field of air conditioner control, and discloses a method for controlling an expansion valve, which comprises the following steps: when the change value of the compressor frequency is larger than the set frequency value, acquiring the running mode of the air conditioner; determining an adjusting value of the opening degree of the expansion valve according to the change value and the operation mode; and adjusting the opening degree of the expansion valve according to the adjusting value. This openly when the variation value of compressor frequency is greater than when setting for the frequency value, avoid setting for long interior according to initial aperture operation extension adjustment time, the adjustment value of expansion valve aperture is confirmed to the variation value of the operational mode through the air conditioner and compressor frequency, so that in time adjust the aperture of expansion valve according to the adjustment value, reduce the pressure that compressor frequency change is too big brings for air conditioning system, reduce the risk that the refrigerant pipeline damaged because of the vibration, can also adjust the air-out temperature to satisfy user's demand in reasonable time, improve user experience. The application also discloses a device and an air conditioner for controlling the expansion valve.
Description
Technical Field
The present application relates to the technical field of air conditioner control, and for example, to a method and an apparatus for controlling an expansion valve, and an air conditioner.
Background
At present, the opening of an expansion valve is generally adjusted automatically to control the flow of a refrigerant in a household variable frequency air conditioning system so as to achieve the corresponding refrigerating and heating effects.
In the prior art, the expansion valve is usually adjusted by operating according to an initial opening degree within a set time period, then determining an adjustment step value of the opening degree according to a target exhaust temperature of the compressor, and gradually adjusting the opening degree of the expansion valve according to a set time period.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: when the frequency variation value of the compressor is too large, the pressure of the air conditioning system can be increased due to untimely adjustment of the opening degree of the expansion valve, and the risk of damage to the refrigerant pipeline due to vibration is increased.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for controlling an expansion valve and an air conditioner, and aims to solve the technical problem that when a frequency change value of a compressor is too large, the risk of damage to a refrigerant pipeline due to vibration is increased when the opening degree of the expansion valve is not adjusted in time.
In some embodiments, the method comprises:
when the change value of the frequency of the compressor is within a set range, acquiring the running mode of the air conditioner;
determining an adjusting value of the opening degree of the expansion valve according to the change value and the operation mode;
and adjusting the opening degree of the expansion valve according to the adjusting value.
In some embodiments, the apparatus comprises:
the air conditioner comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire an operation mode of the air conditioner when a variation value of the frequency of a compressor is within a set range;
a determination module configured to determine an adjustment value of an opening degree of an expansion valve according to the variation value and the operation mode;
and the adjusting module is configured to adjust the opening degree of the expansion valve according to the adjusting value.
In some embodiments, the apparatus comprises a processor and a memory storing program instructions, the processor being configured, upon execution of the program instructions, to perform the method for expansion valve control described above.
In some embodiments, the air conditioner includes the above-described means for expansion valve control.
The method and the device for controlling the expansion valve and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
when the change value of the compressor frequency is larger than the set frequency value, the condition that the adjusting time is prolonged according to the initial opening operation within the set time is avoided, the adjusting value of the opening of the expansion valve is determined according to the operation mode of the air conditioner and the change value of the compressor frequency, the opening of the expansion valve is adjusted according to the adjusting value in time, the pressure brought to the air conditioning system due to the overlarge change of the compressor frequency is reduced, the risk of damage of a refrigerant pipeline due to vibration is reduced, the air outlet temperature can be adjusted within a reasonable time to meet the user requirement, and the user experience is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic flow diagram of a method for expansion valve control provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a configuration of an apparatus for expansion valve control provided by an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a device for controlling an expansion valve according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
According to the embodiment of the disclosure, when the change value of the compressor frequency is less than or equal to the set value, the continuous and stable operation of the system can be satisfied through the logic control of operating according to the initial opening degree within the set time period, then determining the adjustment step value of the opening degree according to the target exhaust temperature of the compressor and gradually adjusting the opening degree of the expansion valve according to the set time period, so that the opening degree of the electronic expansion valve is not required to be forcibly adjusted when the change value of the compressor frequency is less than the set value. The present disclosure is mainly directed to control when a variation value of the compressor frequency is greater than a set value.
FIG. 1 is a schematic flow diagram of a method for expansion valve control provided by an embodiment of the present disclosure, the method including the steps of:
s101, when the change value of the frequency of the compressor is larger than a set frequency value, the running mode of the air conditioner is obtained.
Optionally, the frequency value is set to be 10Hz to 15 Hz. Optionally, the set frequency value is 10Hz, 11Hz, 12Hz, 13Hz, 14Hz or 15 Hz. The set frequency value is determined according to the rated frequency of the compressor, and the larger the rated frequency of the compressor is, the larger the set frequency value is.
In various embodiments, there are various situations that result in a compressor frequency change greater than a set frequency value.
In some embodiments, the compressor frequency changes rapidly due to changes in the operating mode, such as: the defrosting mode is started in the refrigeration mode, the refrigerant circulation path changes, the frequency of the compressor is reduced for adapting to the mode conversion, or the self-cleaning mode is started in the refrigeration mode, the required refrigeration capacity is increased, and the frequency of the compressor is rapidly increased.
In some embodiments, the compressor frequency changes rapidly due to large target set temperature changes or large fan speed changes.
No matter which kind of situation leads to the change value of compressor frequency to be greater than the frequency value that sets for, when the change value of compressor frequency is greater than the frequency value that sets for, through the operation according to initial opening within set duration, then confirm the adjustment step value of opening and adjust the logic control of expansion valve opening step by step according to the setting time cycle according to the target exhaust temperature of compressor, according to the difference of different air conditioning system configurations, the system just can stabilize after 10 minutes and more than 10 minutes after the change of compressor frequency, the adjustment time overlength, when compressor frequency change value is too big, the expansion valve opening adjustment can increase air conditioning system's pressure in time, lead to pipeline vibration aggravate the noise big, can lead to the refrigerant pipeline because of the vibration damage in serious cases.
Wherein, the operation mode includes: a cooling mode and a heating mode. In the operation process of the air conditioning system, the influence of the opening degree of the electronic expansion valve on the outlet air temperature is generally more sensitive in a heating mode than in a cooling mode. Therefore, in order to avoid the reduction of the outlet air temperature caused by the adjustment of the electronic expansion valve and the user experience, the operation mode of the air conditioner is obtained before the opening degree of the electronic expansion valve is adjusted.
And S102, determining an adjusting value of the opening of the expansion valve according to the change value and the operation mode.
There are various ways of determining the adjustment value of the opening degree of the expansion valve based on the variation value and the operation mode.
In some embodiments, the variation value corresponds to a set expansion valve opening adjustment value, and the same variation value corresponds to a different expansion valve opening adjustment value in different operating modes. The corresponding relation among the variation value, the operation mode and the opening degree regulating value of the expansion valve is stored in the air conditioning system, and when the regulating value of the opening degree of the expansion valve needs to be determined, the corresponding relation is determined in a table look-up mode.
In some embodiments, determining the adjustment value for the opening of the expansion valve based on the change value and the operating mode includes: determining an adjusting coefficient of the opening of the expansion valve according to the operation mode; the product of the variation value and the adjustment coefficient is used as the adjustment value of the opening degree of the expansion valve. Because the influence of the change of the opening of the electronic expansion valve on the outlet air temperature is generally more sensitive in the heating mode than in the cooling mode, the accuracy of the adjustment of the opening of the expansion valve is improved by determining the adjustment coefficient of the opening of the expansion valve according to the operation mode.
In some embodiments, determining the adjustment value for the opening of the expansion valve based on the change value and the operating mode includes: determining an adjusting coefficient of the opening of the expansion valve according to the operation mode; calculating a basic adjustment value according to the product of the change value and the adjustment coefficient; and compensating the basic adjusting value, and taking the compensated basic adjusting value as an adjusting value of the opening degree of the expansion valve. According to different specific application environments, the air conditioning system needs to further compensate the basic adjustment value to determine a target adjustment value on the premise of determining the basic adjustment value of the opening degree of the expansion valve according to the change value and the operation mode, and the opening degree adjustment rate of the expansion valve is improved.
Wherein, the calculation formula of the compensation value is as follows:
Pa＝Δf×M+N
where Pa is a compensation value of the opening degree of the expansion valve, △ f is a variation value of the compressor frequency, M is an adjustment coefficient of the opening degree of the expansion valve, and N is a compensation value of the opening degree of the expansion valve.
In some embodiments, compensating for the base adjustment value comprises: determining a compensation value of the opening of the expansion valve according to the operation mode and the outdoor environment temperature; and compensating the basic adjusting value according to the compensation value.
In some embodiments, the outdoor ambient temperature satisfies the set condition.
In some embodiments, setting the condition includes: the outdoor temperature is greater than or equal to a first set value or less than a second set value. Wherein the first set value is greater than the second set value.
In some embodiments, different operating modes correspond to different set conditions. That is, the first setting value is different or the second setting value is different, or the first setting value and the second setting value are different in different operation modes.
In one embodiment, the first set point is 38 ℃ and the second set point is 22 ℃ in the cooling mode. In the heating mode, the first set value is-5 ℃ and the second set value is 16 ℃. Under the refrigeration mode, when the outdoor environment temperature is more than or equal to 38 ℃, the compensation value is determined to be N1, and when the outdoor environment temperature is less than 22 ℃, the compensation value is determined to be N2. Under the heating mode, when the outdoor environment temperature is more than or equal to 16 ℃, the compensation value is determined to be N3, and when the outdoor environment temperature is less than-5 ℃, the compensation value is determined to be N4. Wherein N1, N2, N3 and N4 are stored in the air conditioning system.
In some embodiments, the value of N1 is the same as the value of N4. In some embodiments, the value of N2 is the same as the value of N3.
In one embodiment, N1 and N4 have a value of 10 and N2 and N3 have a value of-10.
The exhaust temperature of the compressor is high in the high-temperature refrigeration and low-temperature heating modes, the system pressure is high, when the instantaneous change value of the operation frequency of the compressor is too large, the system pressure suddenly changes, so that the pipeline vibration is aggravated, the risk of pipeline vibration cracking exists in the noise increase, the opening degree adjusting value of the electronic expansion valve in unit time is increased through the compensation value, the gas-liquid mixing proportion of a refrigerant in the system is reduced, the evaporation and condensation effect is improved, and the effects of shock absorption and noise reduction are achieved.
In some embodiments, determining an adjustment factor for the opening of the expansion valve based on the operating mode comprises: and determining a calculation mode of the adjusting coefficient according to the operation mode, and calculating the adjusting coefficient.
In some embodiments, the adjustment factor is calculated based on the manner of calculation and the compressor displacement.
Optionally, when the operation mode is the cooling mode, the adjustment coefficient calculation formula of the opening degree of the expansion valve is as follows:
wherein M1 is the adjusting coefficient of the opening of the expansion valve in the cooling mode,
the unit is the displacement of the compressor and is cc, and a is a set constant. Optionally, a has a value of 10.
Optionally, when the operation mode is the heating mode, the adjustment coefficient calculation formula of the opening degree of the expansion valve is as follows:
wherein M2 is the adjusting coefficient of the opening of the expansion valve in the heating mode,
the unit is the displacement of the compressor and is cc, and b is a set constant. Optionally, b has a value of 8.
And S103, adjusting the opening degree of the expansion valve according to the adjusting value.
In some embodiments, a unit adjustment value of the opening degree of the expansion valve per unit time is determined based on the adjustment value and the set adjustment time, and the opening degree of the expansion valve is adjusted based on the unit adjustment value. Wherein the adjustment time is set to be 5 to 10 minutes. Alternatively, the adjustment time is set to 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes or 10 minutes. After the opening degree of the expansion valve is adjusted within the set time, the system enters stable operation, the air outlet temperature is slowly changed in the adjusting process, and the user experience cannot be reduced.
In the embodiment of the disclosure, when the variation value of the compressor frequency is greater than the set frequency value, the adjustment time is prevented from being prolonged according to the initial opening operation within the set time, the adjustment value of the opening of the expansion valve is determined according to the operation mode of the air conditioner and the variation value of the compressor frequency, so that the opening of the expansion valve is adjusted in time according to the adjustment value, the pressure brought to the air conditioning system due to the excessive variation of the compressor frequency is reduced, the risk of damage of a refrigerant pipeline due to vibration is reduced, the air outlet temperature can be adjusted within a reasonable time to meet the user requirement, and the user experience is improved.
Fig. 2 is a schematic structural diagram of an apparatus for expansion valve control according to an embodiment of the present disclosure, the apparatus including: an acquisition module 201, a determination module 202 and a control module 203.
The obtaining module 201 is configured to obtain an operation mode of the air conditioner when the variation value of the compressor frequency is greater than a set frequency value.
A determination module 202 configured to determine an adjustment value of the opening of the expansion valve based on the variation value and the operation mode.
A control module 203 configured to adjust an opening degree of the expansion valve according to the adjustment value.
Optionally, the frequency value is set to be 10Hz to 15 Hz. Optionally, the set frequency value is 10Hz, 11Hz, 12Hz, 13Hz, 14Hz or 15 Hz. The set frequency value is determined according to the rated frequency of the compressor, and the larger the rated frequency of the compressor is, the larger the set frequency value is.
Wherein, the operation mode includes: a cooling mode and a heating mode. In the operation process of the air conditioning system, the influence of the opening degree of the electronic expansion valve on the outlet air temperature is generally more sensitive in a heating mode than in a cooling mode. Therefore, in order to avoid the reduction of the outlet air temperature caused by the adjustment of the electronic expansion valve and the user experience, the operation mode of the air conditioner is obtained before the opening degree of the electronic expansion valve is adjusted.
There are various ways of determining the adjustment value of the opening degree of the expansion valve based on the variation value and the operation mode.
In some embodiments, the variation value corresponds to a set expansion valve opening adjustment value, and the same variation value corresponds to a different expansion valve opening adjustment value in different operating modes. The corresponding relationship between the variation value, the operation mode and the expansion valve opening degree adjustment value is stored in the air conditioning system, and when the adjustment value of the expansion valve opening degree needs to be determined, the determination module 202 determines the adjustment value in a table look-up manner.
In some embodiments, the determining module 202 includes: a coefficient determination unit and an adjustment value determination unit.
A coefficient determination unit configured to determine an adjustment coefficient of the opening degree of the expansion valve according to the operation mode.
An adjustment value determination unit configured to take a product of the change value and the adjustment coefficient as an adjustment value of the opening degree of the expansion valve. Because the influence of the change of the opening of the electronic expansion valve on the outlet air temperature is generally more sensitive in the heating mode than in the cooling mode, the accuracy of the adjustment of the opening of the expansion valve is improved by determining the adjustment coefficient of the opening of the expansion valve according to the operation mode.
In some embodiments, the determining module 202 includes: the device comprises a coefficient determining unit, a basic adjusting value determining unit and a compensating unit.
A coefficient determination unit configured to determine an adjustment coefficient of the opening degree of the expansion valve according to the operation mode.
A base adjustment value determination unit configured to calculate a base adjustment value from a product of the variation value and the adjustment coefficient.
And a compensation unit configured to compensate the basic adjustment value to use the compensated basic adjustment value as an adjustment value of the opening degree of the expansion valve.
According to different specific application environments, the air conditioning system needs to further compensate the basic adjustment value to determine a target adjustment value on the premise of determining the basic adjustment value of the opening degree of the expansion valve according to the change value and the operation mode, and the opening degree adjustment rate of the expansion valve is improved.
Wherein, the calculation formula of the compensation value is as follows:
Pa＝Δf×M+N
where Pa is a compensation value of the opening degree of the expansion valve, △ f is a variation value of the compressor frequency, M is an adjustment coefficient of the opening degree of the expansion valve, and N is a compensation value of the opening degree of the expansion valve.
In some embodiments, the compensation unit comprises: a determination subunit and a compensation subunit.
A determining sub-unit configured to determine a compensation value of the opening degree of the expansion valve according to the operation mode and the outdoor ambient temperature.
A compensation subunit configured to compensate the base adjustment value according to the compensation value.
In some embodiments, the outdoor ambient temperature satisfies the set condition.
In some embodiments, setting the condition includes: the outdoor temperature is greater than or equal to a first set value or less than a second set value. Wherein the first set value is greater than the second set value.
In some embodiments, different operating modes correspond to different set conditions. That is, the first setting value is different or the second setting value is different, or the first setting value and the second setting value are different in different operation modes.
In one embodiment, the first set point is 38 ℃ and the second set point is 22 ℃ in the cooling mode. In the heating mode, the first set value is-5 ℃ and the second set value is 16 ℃. Under the refrigeration mode, when the outdoor environment temperature is more than or equal to 38 ℃, the compensation value is determined to be N1, and when the outdoor environment temperature is less than 22 ℃, the compensation value is determined to be N2. Under the heating mode, when the outdoor environment temperature is more than or equal to 16 ℃, the compensation value is determined to be N3, and when the outdoor environment temperature is less than-5 ℃, the compensation value is determined to be N4. Wherein N1, N2, N3 and N4 are stored in the air conditioning system.
In some embodiments, the value of N1 is the same as the value of N4. In some embodiments, the value of N2 is the same as the value of N3.
In one embodiment, N1 and N4 have a value of 10 and N2 and N3 have a value of-10.
The exhaust temperature of the compressor is high in the high-temperature refrigeration and low-temperature heating modes, the system pressure is high, when the instantaneous change value of the operation frequency of the compressor is too large, the system pressure suddenly changes, so that the pipeline vibration is aggravated, the risk of pipeline vibration cracking exists in the noise increase, the opening degree adjusting value of the electronic expansion valve in unit time is increased through the compensation value, the gas-liquid mixing proportion of a refrigerant in the system is reduced, the evaporation and condensation effect is improved, and the effects of shock absorption and noise reduction are achieved.
In some embodiments, the coefficient determination unit is configured to determine a calculation manner of the adjustment coefficient according to the operation mode, and calculate the adjustment coefficient.
In some embodiments, the adjustment factor is calculated based on the manner of calculation and the compressor displacement.
Optionally, when the operation mode is the cooling mode, the adjustment coefficient calculation formula of the opening degree of the expansion valve is as follows:
wherein M1 is the adjusting coefficient of the opening of the expansion valve in the cooling mode,
the unit is the displacement of the compressor and is cc, and a is a set constant. Optionally, a has a value of 10.
Optionally, when the operation mode is the heating mode, the adjustment coefficient calculation formula of the opening degree of the expansion valve is as follows:
wherein M2 is the adjusting coefficient of the opening of the expansion valve in the heating mode,
the unit is the displacement of the compressor and is cc, and b is a set constant. Optionally, b has a value of 8.
In some embodiments, the control module 203 is configured to determine a unit adjustment value of the opening degree of the expansion valve per unit time based on the adjustment value and the set adjustment time, and adjust the opening degree of the expansion valve based on the unit adjustment value. Wherein the adjustment time is set to be 5 to 10 minutes. Alternatively, the adjustment time is set to 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes or 10 minutes. After the opening degree of the expansion valve is adjusted within the set time, the system enters stable operation, the air outlet temperature is slowly changed in the adjusting process, and the user experience cannot be reduced.
In the embodiment of the disclosure, when the variation value of the compressor frequency is greater than the set frequency value, the adjustment time is prevented from being prolonged according to the initial opening operation within the set time, the adjustment value of the opening of the expansion valve is determined according to the operation mode of the air conditioner and the variation value of the compressor frequency, so that the opening of the expansion valve is adjusted in time according to the adjustment value, the pressure brought to the air conditioning system due to the excessive variation of the compressor frequency is reduced, the risk of damage of a refrigerant pipeline due to vibration is reduced, the air outlet temperature can be adjusted within a reasonable time to meet the user requirement, and the user experience is improved.
The disclosed embodiments provide an apparatus for expansion valve control comprising a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform the above-described method for expansion valve control.
As shown in fig. 3, an embodiment of the present disclosure provides an apparatus for expansion valve control, which includes a processor (processor)300 and a memory (memory) 301. Optionally, the apparatus may also include a Communication Interface 302 and a bus 303. The processor 300, the communication interface 302 and the memory 301 may communicate with each other via a bus 303. The communication interface 302 may be used for information transfer. The processor 300 may invoke logic instructions in the memory 301 to perform the method for expansion valve control of the above-described embodiment.
In addition, the logic instructions in the memory 301 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 301 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 300 executes the functional applications and data processing, i.e. the method for expansion valve control in the above described embodiments, by executing the program instructions/modules stored in the memory 301.
The memory 301 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 301 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for controlling the expansion valve.
Embodiments of the present disclosure provide a computer-readable storage medium having stored thereon computer-executable instructions configured to perform the above-described method for expansion valve control.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for expansion valve control.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable 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 of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. 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 place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for expansion valve control, comprising:
when the change value of the compressor frequency is larger than the set frequency value, acquiring the running mode of the air conditioner;
determining an adjusting value of the opening degree of the expansion valve according to the change value and the operation mode;
and adjusting the opening degree of the expansion valve according to the adjusting value.
2. The method of claim 1, wherein determining an adjustment value for an opening of an expansion valve based on the change value and the operating mode comprises:
determining an adjusting coefficient of the opening of the expansion valve according to the operation mode;
and taking the product of the change value and the adjusting coefficient as an adjusting value of the opening degree of the expansion valve.
3. The method of claim 1, wherein determining an adjustment value for an opening of an expansion valve based on the change value and the operating mode comprises:
determining an adjusting coefficient of the opening of the expansion valve according to the operation mode;
calculating a base adjustment value according to the product of the change value and the adjustment coefficient;
and compensating the basic adjusting value, and taking the compensated basic adjusting value as an adjusting value of the opening degree of the expansion valve.
4. The method of claim 3, wherein compensating the base adjustment value comprises:
determining a compensation value of the opening degree of the expansion valve according to the operation mode and the outdoor environment temperature;
and compensating the basic adjusting value according to the compensating value.
5. The method of claim 4, wherein the outdoor ambient temperature satisfies a set condition.
6. The method of claim 5, wherein different operating modes correspond to different set conditions.
7. The method according to any one of claims 2 to 6, wherein determining an adjustment coefficient of the expansion valve opening degree according to the operation mode includes:
and determining a calculation mode of the adjusting coefficient according to the running mode, and calculating the adjusting coefficient.
8. The method of claim 7, wherein the adjustment factor is calculated based on the calculation and a compressor displacement.
9. An apparatus for expansion valve control comprising a processor and a memory having stored thereon program instructions, wherein the processor is configured to perform a method for expansion valve control as claimed in any one of claims 1 to 8 when executing the program instructions.
10. An air conditioner comprising the device for expansion valve control of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338308.6A CN111043737A (en) | 2019-12-23 | 2019-12-23 | Method and device for controlling expansion valve and air conditioner |
| PCT/CN2020/082952 WO2021128645A1 (en) | 2019-12-23 | 2020-04-02 | Method and device for controlling expansion valve, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338308.6A CN111043737A (en) | 2019-12-23 | 2019-12-23 | Method and device for controlling expansion valve and air conditioner |
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| CN111043737A true CN111043737A (en) | 2020-04-21 |
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| CN201911338308.6A Pending CN111043737A (en) | 2019-12-23 | 2019-12-23 | Method and device for controlling expansion valve and air conditioner |
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| CN (1) | CN111043737A (en) |
| WO (1) | WO2021128645A1 (en) |
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| CN112524765A (en) * | 2020-12-08 | 2021-03-19 | 青岛海尔空调器有限总公司 | Expansion valve control method and device for air conditioner, electronic equipment and storage medium |
| CN113834198A (en) * | 2020-06-24 | 2021-12-24 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
| CN114543327A (en) * | 2022-01-17 | 2022-05-27 | 青岛海尔空调器有限总公司 | Method and device for determining opening degree of expansion valve, air conditioner and storage medium |
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| WO2021128645A1 (en) | 2021-07-01 |
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