CN112747514B - Method and device for controlling running frequency of air conditioner compressor and air conditioner - Google Patents

Method and device for controlling running frequency of air conditioner compressor and air conditioner Download PDF

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Publication number
CN112747514B
CN112747514B CN202110013213.8A CN202110013213A CN112747514B CN 112747514 B CN112747514 B CN 112747514B CN 202110013213 A CN202110013213 A CN 202110013213A CN 112747514 B CN112747514 B CN 112747514B
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Prior art keywords
temperature
compressor
preset
frequency
value
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CN112747514A (en
Inventor
杨中锋
宁贻江
李凯明
徐军瑞
宋力钊
李鑫
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202110013213.8A priority Critical patent/CN112747514B/en
Publication of CN112747514A publication Critical patent/CN112747514A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022Compressor control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The application relates to the technical field of intelligent household appliances and discloses a method for controlling the running frequency of an air-conditioning compressor. The frequency of the air conditioner compressor can be adjusted according to the difference value between the indoor temperature and the preset temperature and the first exhaust temperature of the compressor, and when the difference value between the indoor temperature and the preset temperature is smaller than the preset difference value and the first exhaust temperature is within the preset range, the compressor is controlled to operate at the first preset frequency to adjust the indoor temperature, so that the adjusted indoor temperature value is the same as the preset temperature value. With this scheme, only need in refrigerating system installation room temperature sensor and compressor exhaust temperature sensor just can realize the frequency control of compressor, simplified current complicated compressor frequency control process, reduced the automatically controlled device, the cost is reduced has strengthened the interference immunity of entire system. The application also discloses a device and an air conditioner for controlling the operating frequency of the air conditioner compressor.

Description

Method and device for controlling running frequency of air conditioner compressor and air conditioner
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a method and a device for controlling the operating frequency of an air conditioner compressor and an air conditioner.
Background
Along with the continuous improvement of living standard of people, the variable frequency air conditioner gradually enters the public visual field, and in hot summer or cold winter, the variable frequency air conditioner can be used for refrigerating or heating indoor air, so that a comfortable living environment is created for users. The compressor is the heart of the inverter air conditioner, and the operating frequency of the compressor directly affects the use efficiency of the air conditioner, so that the air conditioner is always in the optimal operating state by adjusting the operating frequency of the compressor.
However, in the existing method for adjusting the operating frequency of the compressor, the operating frequency of the compressor is generally determined comprehensively by detecting data such as indoor ambient temperature, outdoor ambient temperature, coil temperature and the like, and the method needs to refer to a plurality of data, so that influence factors are excessive. Further, when detecting a plurality of items of data, it is generally necessary to install a plurality of detection elements in the control system, and the control system becomes very complicated.
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 the operating frequency of an air conditioner compressor and an air conditioner, and provides a method for controlling the operating frequency of the air conditioner compressor.
In some embodiments, the method comprises: acquiring indoor temperature, and determining the difference value between the indoor temperature and preset temperature; acquiring a first exhaust temperature of the compressor, wherein the first exhaust temperature is an exhaust temperature value maintained in a preset time period; and if the difference value between the indoor temperature and the preset temperature is not greater than the preset difference value and the first exhaust temperature is within the preset temperature range, controlling the compressor to operate at a first preset frequency so as to adjust the indoor temperature to the preset temperature value.
In some embodiments, the method comprises: and when the difference value between the indoor temperature and the preset temperature is greater than the preset difference value, controlling the compressor to operate at the initial frequency.
In some embodiments, the initial frequency is determined as follows: acquiring a second exhaust temperature of the compressor, wherein the second exhaust temperature is the exhaust temperature of the compressor when the air conditioner is started; if the operation mode of the air conditioner is a refrigeration mode, determining a highest temperature value in the second exhaust temperature of the compressor and the preset temperature, and determining the frequency associated with the highest temperature value as an initial frequency; and if the operation mode of the air conditioner is the heating mode, determining a lowest temperature value in the second exhaust temperature of the compressor and the preset temperature, and determining the frequency associated with the lowest temperature value as the initial frequency.
In some embodiments, after obtaining the first discharge temperature of the compressor, the method includes controlling the compressor to operate at a second preset frequency to adjust the first discharge temperature if it is determined that the first discharge temperature of the compressor is less than a lowest value of the preset temperature range, the second preset frequency being greater than the initial frequency.
In some embodiments, after obtaining the first discharge temperature of the compressor, the method includes controlling the compressor to operate at a third preset frequency to adjust the first discharge temperature if it is determined that the first discharge temperature of the compressor is greater than a highest value of the preset temperature range, the third preset frequency being less than the initial frequency.
In some embodiments, the method further comprises: if the first exhaust temperature is within the preset temperature range, controlling the compressor to operate at an initial frequency; and if the difference value between the indoor temperature and the preset temperature is not greater than the preset difference value, controlling the compressor to operate at a first preset frequency.
In some embodiments, the method further comprises: acquiring a third exhaust temperature of the compressor, wherein the third exhaust temperature is the highest value of the exhaust temperature of the compressor within a preset time period; and when the exhaust temperature of the compressor is greater than a preset alarm value, controlling the air conditioner to stop and generating a fault instruction.
In some embodiments, the apparatus comprises: the device comprises a determining module, a judging module and a control module, wherein the determining module is configured to acquire an indoor temperature and determine a difference value between the indoor temperature and a preset temperature; the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire a first exhaust temperature of a compressor, and the first exhaust temperature is an exhaust temperature value maintained within a preset time length; the adjusting module is configured to control the compressor to operate at a first preset frequency to adjust the indoor temperature to a preset temperature value if the difference between the indoor temperature and the preset temperature is not greater than the preset difference and the first exhaust temperature is within a preset temperature range.
In some embodiments, the apparatus comprises: the foregoing method for controlling the operating frequency of a compressor.
In some embodiments, the air conditioner includes: the device for controlling the running frequency of the air conditioner compressor is disclosed.
The method and the device for controlling the operating frequency of the air conditioner compressor and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects: the frequency of the air conditioner compressor can be adjusted according to the difference value between the indoor temperature and the preset temperature and the first exhaust temperature of the compressor, and when the difference value between the indoor temperature and the preset temperature is smaller than or equal to the preset difference value and the first exhaust temperature is within the preset range, the compressor is controlled to operate at the first preset frequency to adjust the indoor temperature, so that the adjusted indoor temperature value is the same as the preset temperature value. With this scheme, only need in refrigerating system installation room temperature sensor and compressor exhaust temperature sensor just can realize the frequency control of compressor, simplified current complicated compressor frequency control process, reduced the automatically controlled device, the cost is reduced has strengthened the interference immunity of entire system.
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 diagram of a method for controlling an operating frequency of an air conditioner compressor according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of an apparatus for controlling an operating frequency of an air conditioner compressor according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an apparatus for controlling an operating frequency of an air conditioner compressor 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 "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
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.
In practical application, the indoor temperature can be obtained through the indoor sensor, and the difference value between the indoor temperature and the preset temperature is determined. The compressor can be controlled to operate at an initial temperature when the difference between the indoor temperature and the preset temperature is greater than the preset difference, and the first exhaust temperature of the compressor is acquired after the compressor operates stably. And controlling the compressor to operate at an initial frequency when the first exhaust temperature is within a preset temperature range. And when the difference value between the indoor temperature and the preset temperature is not more than the preset difference value and the first exhaust temperature is within the preset temperature range, controlling the compressor to operate at a first preset frequency so as to adjust the indoor temperature to be the same as the preset temperature value.
Fig. 1 is a schematic diagram of a method for controlling an operating frequency of an air conditioner compressor according to an embodiment of the present disclosure, and in conjunction with fig. 1, the method for controlling an operating frequency of an air conditioner compressor according to an embodiment of the present disclosure includes:
and S11, acquiring the indoor temperature, and determining the difference value between the indoor temperature and the preset temperature.
And S12, acquiring a first exhaust temperature of the compressor, wherein the first exhaust temperature is an exhaust temperature value maintained in a preset time period.
And S13, if the first exhaust temperature is within the preset temperature range and the difference between the indoor temperature and the preset temperature is not greater than the preset difference, controlling the compressor to operate at a first preset frequency so as to adjust the indoor temperature to a preset temperature value.
The method for controlling the operating frequency of the air conditioner compressor provided by the embodiment of the disclosure is applied to an air conditioner.
In step 11, the indoor temperature may be acquired and a difference between the indoor temperature and a preset temperature may be determined.
Indoor temperature sensor can be installed at indoor in this scheme to obtain the difference of indoor temperature and preset temperature. In one example, the preset temperature may be preset at the time of factory shipment of the air conditioner. In another example, the setting may be made in advance according to a feeling of coolness or warmth of the user. By acquiring the difference value between the indoor temperature and the preset temperature, the temperature to be adjusted can be pre-judged in advance so as to acquire effective temperature difference data.
In step 12, a first discharge temperature of the compressor may be obtained, where the first discharge temperature is a discharge temperature value that does not change any more for a preset time period.
In this scheme, a compressor discharge temperature sensor may be provided on the side of the outdoor compressor, and in one example, the first discharge temperature of the compressor may be obtained after the air conditioner is started for the first time. The air conditioner can be started for the first time within a preset time length to serve as the first time starting. In general, the preset time period may be set to 5 hours.
In step 13, if the first exhaust temperature is within the preset temperature range and the difference between the indoor temperature and the preset temperature is not greater than the preset difference, the compressor is controlled to operate at the first preset frequency to adjust the indoor temperature to be the same as the preset temperature value.
By adopting the method for controlling the operating frequency of the air-conditioning compressor provided by the embodiment of the disclosure, the frequency of the air-conditioning compressor can be adjusted according to the difference value between the indoor temperature and the preset temperature and the first exhaust temperature of the compressor, and when the difference value between the indoor temperature and the preset temperature is smaller than the preset difference value and the first exhaust temperature is within the preset range, the compressor is controlled to operate at the first preset frequency so as to adjust the indoor temperature, so that the adjusted indoor temperature value is the same as the preset temperature value. With the scheme, the operation parameters can be corrected only by installing the indoor temperature sensor and the compressor exhaust temperature sensor in the refrigerating system, so that the frequency control of the compressor is realized, the existing complex frequency control process of the compressor is simplified, electric control devices are reduced, the cost is reduced, and the anti-interference performance of the whole system is enhanced.
Optionally, the air conditioner is controlled to normally operate when the difference between the indoor temperature and the preset temperature is greater than a preset difference. In this scheme, when the difference between the indoor temperature and the preset temperature is greater than the preset difference, the compressor is controlled to operate at the initial frequency.
In the scheme, the environment temperature can be determined through the weather forecast information, and the initial frequency is determined through the pre-stored corresponding relation between the environment temperature and the initial frequency. With this scheme, can confirm different initial frequency according to different ambient temperature, improve the accuracy of initial frequency numerical value, further reduce the difference of indoor temperature and preset temperature.
Alternatively, the initial temperature may also be determined by: acquiring a second exhaust temperature of the compressor, wherein the second exhaust temperature is the exhaust temperature of the compressor when the air conditioner is started; if the operation mode of the air conditioner is a refrigeration mode, determining a highest temperature value in the second exhaust temperature of the compressor and a preset temperature, and determining the frequency associated with the highest temperature value as the initial frequency; and if the operation mode of the air conditioner is the heating mode, determining a lowest temperature value in the second exhaust temperature of the compressor and the preset temperature, and determining the frequency associated with the lowest temperature value as the initial frequency.
In this aspect, the correlation between the temperature and the initial frequency may be set in advance. The initial frequency may be preset according to weather conditions. The frequency associated with the indoor temperature acquired by the indoor sensor may also be determined as the initial frequency when the weather forecast information cannot be received. In addition, the preset temperature can be preset according to the requirements of users.
In one example, the initial frequency may also be determined by an operation mode of the air conditioner when weather forecast information cannot be received. The exhaust temperature of the compressor at the time of first startup can be acquired as the second exhaust temperature. In order to rapidly cool down the interior of the room when the air conditioner is operated in the cooling mode, a frequency associated with a higher value of the second discharge temperature and the preset temperature is determined as an initial frequency. For example: the second exhaust temperature was taken to be 28 degrees and the preset temperature was 26 degrees. The initial frequency of the compressor operation is determined at a frequency associated with 28 degrees in the cooling mode of the air conditioner operation.
In another example, the discharge temperature of the compressor at the time of first startup may be acquired as the second discharge temperature. In order to rapidly warm up the indoor space in the air-conditioning operation heating mode, a frequency at which the second exhaust temperature is associated with a lower value of the preset temperatures is determined as the initial frequency. For example: the second exhaust temperature is taken to be 28 degrees and the preset temperature is 25 degrees. The initial frequency of the compressor operation is determined at a frequency of 25 degrees correlation at the time of the air conditioner operation heating mode.
Optionally, in order to increase the first exhaust temperature when the first exhaust temperature is less than the lowest value of the preset temperature range, in this embodiment, after the first exhaust temperature of the compressor is obtained, if it is determined that the first exhaust temperature of the compressor is less than the lowest value of the preset temperature range, the compressor is controlled to operate at a second preset frequency to adjust the first exhaust temperature, where the second preset frequency is greater than the initial frequency.
In this embodiment, if the obtained first exhaust temperature is less than the lowest value of the preset temperature range, the compressor needs to be controlled to operate at a second preset frequency. The functional relationship between the initial frequency and the second frequency may be preset so that the second preset frequency is greater than the initial frequency, for example: the second preset frequency is equal to the initial frequency plus the first positive number. With this scheme, can improve first exhaust temperature value through controlling the air conditioner and with the operation of second preset frequency.
In an optimized scheme, after the air conditioner compressor operates for a period of time according to the second preset frequency, whether the first exhaust temperature is within the preset temperature range or not can be determined, and if the first exhaust temperature is still lower than the lowest value of the preset temperature, the compressor can be controlled to operate according to the fourth preset frequency. Wherein the fourth predetermined frequency is less than the second predetermined frequency and greater than the initial frequency, for example: fourth preset frequency is equal to initial frequency + 1 / 2 A first positive number. With this scheme, can control the air conditioner nimble after with the operation of second preset frequency a period, when first exhaust temperature still is less than the minimum of predetermineeing the temperature range, control the air conditioner and continue to operate with fourth preset frequency to improve first exhaust temperature value and in predetermineeing the temperature range, strengthened the flexibility of compressor frequency adjustment.
Alternatively, in order to lower the first exhaust temperature when the first exhaust temperature is greater than the highest value of the preset temperature range, in the present aspect, the compressor may be controlled to operate at the third preset frequency when the first exhaust temperature of the compressor is greater than the highest value of the preset temperature range. Wherein the third preset frequency is less than the initial frequency.
In this embodiment, if the obtained first exhaust temperature is greater than the maximum value of the preset temperature range, the compressor needs to be controlled to operate at a third preset frequency. The functional relationship between the initial frequency and the third frequency may be preset, so that the third preset frequency is smaller than the initial frequency, for example: the third preset frequency is the initial frequency-the second positive number. With this scheme, can reduce first exhaust temperature value through controlling the air conditioner and running at the third preset frequency.
In an optimized scheme, after the air conditioner compressor operates for a period of time according to the third preset frequency, whether the first exhaust temperature is within the preset temperature range or not may be determined, and if the first exhaust temperature is still higher than the highest value of the preset temperature, the compressor may be controlled to operate according to the fifth preset frequency. Wherein the fifth predetermined frequency is greater than the third predetermined frequency and the fifth predetermined frequency is less than the initial frequency, for example: the fifth predetermined frequency is the initial frequency-N. Wherein, N can be any value of 1, 2 or 3. With the adoption of the scheme, after the air conditioner flexibly runs for a period of time at the third preset frequency, when the first exhaust temperature is still higher than the highest value of the preset temperature range, the air conditioner is controlled to continue running at the fifth preset frequency, so that the first exhaust temperature is reduced within the preset temperature range, and the flexibility of adjusting the frequency of the compressor is enhanced.
Optionally, in order to adjust the indoor temperature to be the same as the preset temperature value, in this scheme, the adjusted first exhaust temperature may also be obtained; and if the adjusted first exhaust temperature is within the preset temperature range and the difference value between the indoor temperature and the preset temperature is not greater than the preset difference value, controlling the compressor to operate at a first preset frequency so as to adjust the indoor temperature to be the same as the preset temperature value.
In an optimized scheme, when the first exhaust temperature is adjusted to be within a preset temperature range, the air conditioner compressor is controlled to operate according to the initial frequency, and when the difference value between the indoor temperature and the preset temperature is smaller than the preset difference value, the compressor is controlled to operate at the first preset frequency so as to adjust the indoor temperature, and the adjusted indoor temperature value is the same as the preset temperature value. The existing complex compressor frequency control process is simplified.
Optionally, in order to ensure safe and reliable operation of the compressor, in the scheme, a third exhaust temperature of the compressor is obtained, wherein the third exhaust temperature is the highest value of the exhaust temperature of the compressor within a preset time period; and when the exhaust temperature of the compressor is greater than a preset alarm value, controlling the air conditioner to stop and generating a fault instruction.
In the scheme, in order to ensure the safe operation of the compressor, the highest value of the exhaust temperature of the compressor within the preset time can be obtained, the third exhaust temperature is compared with the preset alarm value, and when the third exhaust temperature is determined to be greater than the preset alarm value, the air conditioner is controlled to stop and a fault instruction is generated. With this scheme, guaranteed the safe and stable operation of compressor.
Referring to fig. 2, an embodiment of the present disclosure provides an apparatus for controlling an operating frequency of an air conditioner compressor, which includes a determining module 21, an obtaining module 22, and an adjusting module 23. The determining module 21 is configured to obtain an indoor temperature and determine a difference between the indoor temperature and a preset temperature; the acquisition module 22 is configured to acquire a first discharge temperature of the compressor, the first discharge temperature being a discharge temperature value that does not change any more for a preset time period; the adjusting module 23 is configured to control the compressor to operate at a first preset frequency to adjust the indoor temperature to be the same as the preset temperature value if the difference between the indoor temperature and the preset temperature is not greater than the preset difference and the first exhaust temperature is within the preset temperature range.
By adopting the device for controlling the operating frequency of the air-conditioning compressor, the frequency of the air-conditioning compressor can be adjusted according to the difference value between the indoor temperature and the preset temperature and the first exhaust temperature of the compressor, and when the difference value between the indoor temperature and the preset temperature is smaller than the preset difference value and the first exhaust temperature is within the preset range, the compressor is controlled to operate at the first preset frequency so as to adjust the indoor temperature, so that the adjusted indoor temperature value is the same as the preset temperature value. With this scheme, only need in refrigerating system installation room temperature sensor and compressor exhaust temperature sensor just can realize the frequency control of compressor, simplified current complicated compressor frequency control process, reduced the automatically controlled device, the cost is reduced has strengthened the interference immunity of entire system.
As shown in fig. 3, an embodiment of the present disclosure provides an apparatus for controlling an operating frequency of an air conditioner compressor, which includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for controlling the operating frequency of the air conditioner compressor of the above-described embodiment.
In addition, the logic instructions in the memory 101 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 101 is used as a computer readable storage medium 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 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for controlling the operating frequency of the air conditioner compressor in the above-described embodiments.
The memory 101 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. In addition, the memory 101 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 running frequency of the compressor of the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an operating frequency of an air conditioner compressor.
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 method for … described above.
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 portable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other 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 additional identical elements in the process, method or apparatus comprising 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 (8)

1. A method for controlling an operating frequency of an air conditioning compressor, comprising:
acquiring indoor temperature, and determining the difference value between the indoor temperature and preset temperature;
acquiring a first exhaust temperature of the compressor, wherein the first exhaust temperature is an exhaust temperature value maintained by the compressor within a preset time period;
if the first exhaust temperature is within a preset temperature range and the difference value between the indoor temperature and the preset temperature is not greater than a preset difference value, controlling the compressor to operate at a first preset frequency so as to adjust the indoor temperature to the preset temperature value;
when the difference value between the indoor temperature and the preset temperature is larger than the preset difference value, controlling the compressor to operate at the initial frequency;
the initial frequency may be determined as follows:
acquiring a second exhaust temperature of the compressor, wherein the second exhaust temperature is the exhaust temperature of the compressor when the air conditioner is started;
if the operation mode of the air conditioner is a refrigeration mode, determining a highest temperature value in a second exhaust temperature of the compressor and the preset temperature value, and determining a frequency associated with the highest temperature value as the initial frequency;
and if the operation mode of the air conditioner is a heating mode, determining a lowest temperature value in the second exhaust temperature of the compressor and the preset temperature value, and determining the frequency associated with the lowest temperature value as the initial frequency.
2. The method of claim 1, wherein after obtaining the first discharge temperature of the compressor, the method further comprises:
and if the first exhaust temperature of the compressor is determined to be smaller than the lowest value of the preset temperature range, controlling the compressor to operate at a second preset frequency to adjust the first exhaust temperature, wherein the second preset frequency is larger than the initial frequency.
3. The method of claim 1, wherein after obtaining the first discharge temperature of the compressor, the method further comprises:
and if the first exhaust temperature of the compressor is determined to be greater than the highest value of the preset temperature range, controlling the compressor to operate at a third preset frequency to adjust the first exhaust temperature, wherein the third preset frequency is less than the initial frequency.
4. The method according to any one of claims 2 or 3, further comprising:
if the first exhaust temperature is within the preset temperature range, controlling the compressor to operate at an initial frequency;
and if the difference value between the indoor temperature and the preset temperature is not greater than the preset difference value, controlling the compressor to operate at the first preset frequency.
5. The method of claim 1, further comprising:
acquiring a third exhaust temperature of the compressor, wherein the third exhaust temperature is the highest value of the exhaust temperature of the compressor in the preset time period;
and when the third exhaust temperature is greater than a preset alarm value, controlling the air conditioner to stop.
6. An apparatus for controlling an operating frequency of an air conditioner compressor, comprising:
the device comprises a determining module, a judging module and a control module, wherein the determining module is configured to acquire an indoor temperature and determine a difference value between the indoor temperature and a preset temperature;
an obtaining module configured to obtain a first discharge temperature of the compressor, the first discharge temperature being a discharge temperature value maintained for a preset time period;
the adjusting module is configured to control the compressor to operate at a first preset frequency to adjust the indoor temperature to a preset temperature value if the difference between the indoor temperature and the preset temperature is not greater than a preset difference and the first exhaust temperature is within a preset temperature range;
when the difference value between the indoor temperature and the preset temperature is larger than the preset difference value, controlling the compressor to operate at the initial frequency;
the initial frequency may be determined as follows:
acquiring a second exhaust temperature of the compressor, wherein the second exhaust temperature is the exhaust temperature of the compressor when the air conditioner is started;
if the operation mode of the air conditioner is a refrigeration mode, determining a highest temperature value in a second exhaust temperature of the compressor and the preset temperature value, and determining a frequency associated with the highest temperature value as the initial frequency;
and if the operation mode of the air conditioner is a heating mode, determining a lowest temperature value in the second exhaust temperature of the compressor and the preset temperature value, and determining the frequency associated with the lowest temperature value as the initial frequency.
7. An apparatus for controlling an operating frequency of an air conditioner compressor, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling an operating frequency of a compressor according to any one of claims 1 to 6 when executing the program instructions.
8. An air conditioner characterized by comprising the device for controlling the operating frequency of the compressor of the air conditioner as claimed in claim 6 or 7.
CN202110013213.8A 2021-01-06 2021-01-06 Method and device for controlling running frequency of air conditioner compressor and air conditioner Active CN112747514B (en)

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