Method and apparatus for air conditioning, air conditioner, storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for refrigeration of an air conditioner, which comprises the following steps: detecting an outdoor environment temperature; starting a compressor and closing an outdoor fan in the case that the outdoor environment temperature is less than a temperature threshold; and adjusting the running frequency of the compressor according to the temperature of an inner coil and the temperature of indoor air outlet. In the case that the air conditioner is in a low-temperature environment, the refrigeration is performed by starting only the compressor, and the outdoor fan is not started, so that the outdoor heat exchange efficiency is greatly reduced, the system high-pressure pressure and the suction gas superheat degree are reduced, the compressor is prevented from running in the liquid return mode, and the service life of the compressor is prolonged. The application further discloses a device for refrigeration of an air conditioner, an air conditioner and a storage medium.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for air conditioner cooling, an air conditioner, and a storage medium. Background Technology

[0002] Currently, in extremely cold regions, indoor heating is generally provided by methods such as central heating. Due to the lack of precise temperature control, other heat sources provide a large amount of heat, necessitating the installation of air conditioners with low-temperature cooling functions to cool the indoor air and meet higher comfort requirements. However, the outdoor ambient temperature range for air conditioners currently on the market is generally -15℃ to 54℃, which cannot meet the requirements for reliable cooling operation in ultra-low temperature environments. When the ambient temperature is below -15℃, the air conditioner's internal unit will frost and freeze, severely affecting the cooling effect. Simultaneously, the compressor's suction temperature is low, and the suction superheat is insufficient, leading to severe liquid return problems in the compressor, damaging it and preventing long-term operation. In other words, in ultra-low temperature environments, continuous cooling operation of the air conditioner with a relatively high suction temperature will affect the long-term low-temperature operation of the entire unit, resulting in excessively low system high pressure, excessively low suction temperature, and the air conditioner's compressor operating with prolonged liquid return, resulting in insignificant cooling effect.

[0003] The related technology discloses an ultra-low temperature refrigeration control method, including: detecting the outdoor ambient temperature after the unit enters the refrigeration mode; if the outdoor ambient temperature is lower than a first preset low temperature, controlling the unit to enter the ultra-low temperature refrigeration mode based on the pipe temperature of the condenser of the outdoor fan; wherein, the ultra-low temperature refrigeration mode includes at least one of the following operations: controlling the compressor frequency to increase, controlling the outdoor fan speed to decrease, and controlling the indoor fan speed to increase. This solves the problem of the unit operating with liquid return for extended periods in ultra-low temperature environments, and enables the air conditioner to maintain stable cooling output and high reliability during long-term operation at ultra-low temperature ambient temperatures.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Although the adoption of related technologies reduces the probability of compressor liquid return to some extent by reducing the fan speed, in ultra-low temperature environments, even when operating at the lowest fan speed, the system high pressure and suction superheat will still decrease, meaning that the compressor still has a significant risk of liquid return, which can lead to compressor damage. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a method and apparatus for air conditioner refrigeration, an air conditioner, and a storage medium to avoid compressor liquid return during low-temperature refrigeration operation and extend the compressor's service life.

[0008] In some embodiments, the method includes: detecting the outdoor ambient temperature; starting the compressor and turning off the outdoor fan when the outdoor ambient temperature is lower than a temperature threshold; and adjusting the operating frequency of the compressor according to the indoor coil temperature and the indoor air outlet temperature.

[0009] In some embodiments, the apparatus includes a processor and a memory storing program instructions, wherein the processor is configured to execute the above-described method for cooling an air conditioner when executing the program instructions.

[0010] In some embodiments, the air conditioner includes the above-described apparatus for air conditioning cooling.

[0011] In some embodiments, the storage medium stores program instructions that, when executed, perform the aforementioned method for cooling an air conditioner.

[0012] The method and apparatus for air conditioner refrigeration, the air conditioner, and the storage medium provided in the embodiments of this disclosure can achieve the following technical effects:

[0013] The air conditioner detects the outdoor ambient temperature. When the outdoor ambient temperature is below a certain threshold, it starts the compressor, shuts down the outdoor fan, and adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature. In low-temperature environments, by only starting the compressor for cooling without activating the outdoor fan, the air conditioner significantly reduces outdoor heat exchange efficiency. This avoids frequent freezing protection cycles, lowers system high-pressure and suction superheat, prevents liquid return from the compressor, and extends its lifespan.

[0014] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0016] Figure 1 This is a schematic diagram of a method for cooling an air conditioner provided in an embodiment of this disclosure;

[0017] Figure 2 This is a schematic diagram of another method for air conditioner cooling provided in an embodiment of this disclosure;

[0018] Figure 3 This is a schematic diagram of another method for air conditioner cooling provided in an embodiment of this disclosure;

[0019] Figure 4 This is a schematic diagram of another method for air conditioner cooling provided in an embodiment of this disclosure;

[0020] Figure 5 This is a schematic diagram of another method for air conditioner cooling provided in an embodiment of this disclosure;

[0021] Figure 6 This is a schematic diagram of an apparatus for air conditioning refrigeration provided in an embodiment of this disclosure. Detailed Implementation

[0022] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0023] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] Unless otherwise stated, the term "multiple" means two or more.

[0025] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0026] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0027] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0028] In this embodiment of the disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technology and network communication technology into home appliances. They have the characteristics of intelligent control, intelligent sensing and intelligent application. The operation of smart home appliances often relies on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips. For example, smart home appliances can be connected to electronic devices to enable users to remotely control and manage smart home appliances.

[0029] In the disclosed embodiments, the terminal device refers to an electronic device with wireless connectivity. The terminal device can communicate with the aforementioned smart home appliances via the internet, or directly via Bluetooth, Wi-Fi, or other methods. In some embodiments, the terminal device may be, for example, a mobile device, a computer, or an in-vehicle device built into a hovercraft, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Wearable devices may include, for example, smartwatches, smart bracelets, pedometers, etc.

[0030] This disclosure provides a method for cooling in an air conditioner. For example... Figure 1 As shown, the method includes:

[0031] S01, the air conditioner detects the outdoor ambient temperature.

[0032] S02, When the outdoor ambient temperature is lower than the temperature threshold, the air conditioner starts the compressor and shuts down the outdoor fan.

[0033] S03, the air conditioner adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature.

[0034] The air conditioner cooling method provided in this embodiment detects the outdoor ambient temperature. When the outdoor ambient temperature is lower than a temperature threshold, the air conditioner starts the compressor, shuts down the outdoor fan, and adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature. In low-temperature environments, by only starting the compressor for cooling without activating the outdoor fan, the outdoor heat exchange efficiency is significantly reduced. This avoids frequent freezing protection cycles, reduces system high-pressure and suction superheat, prevents compressor liquid return, and extends the compressor's lifespan. Furthermore, since only starting the compressor for cooling may affect the air conditioner's cooling effect in low-temperature environments, to address this reduction in cooling effect caused by the aforementioned control method, the air conditioner also adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature. This solves the problem of reduced cooling effect caused by only starting the compressor for cooling, ensuring the air conditioner's cooling effect even in ultra-low temperature environments.

[0035] This disclosure provides a method for cooling in an air conditioner. For example... Figure 2 As shown, the method includes:

[0036] S01, the air conditioner detects the outdoor ambient temperature.

[0037] S21, when the outdoor ambient temperature is lower than the temperature threshold, the air conditioner determines the target operating frequency of the compressor based on the target temperature and the indoor ambient temperature.

[0038] S22, the air conditioner adjusts the compressor's operating frequency to the target operating frequency and shuts off the outdoor fan.

[0039] S03, the air conditioner adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature.

[0040] The air conditioner determines the target operating frequency of the compressor based on the target temperature and the indoor ambient temperature. This includes calculating a first temperature difference between the target temperature and the indoor ambient temperature; and determining the target operating frequency corresponding to the first temperature difference based on a pre-stored correspondence between the first temperature difference and the operating frequency. This ensures that the target operating frequency matches the system's load demand, meeting the user's indoor temperature requirements.

[0041] The air conditioning cooling method provided in this disclosure shuts off the outdoor fan when the outdoor ambient temperature is below a temperature threshold, significantly reducing outdoor heat exchange efficiency. This avoids frequent freezing protection activation of the air conditioner, reduces system high-pressure and suction superheat, prevents compressor liquid return operation, and extends compressor lifespan. The air conditioner determines the target operating frequency of the compressor based on the target temperature and indoor ambient temperature, and adjusts the compressor's operating frequency to the target frequency. The cooling load of the air conditioning system can be obtained through the target temperature and indoor ambient temperature, thereby matching the compressor's operating frequency with the system pressure and improving cooling efficiency.

[0042] This disclosure provides a method for cooling in an air conditioner. For example... Figure 3 As shown, the method includes:

[0043] S01, the air conditioner detects the outdoor ambient temperature.

[0044] S02, When the outdoor ambient temperature is lower than the temperature threshold, the air conditioner starts the compressor and shuts down the outdoor fan.

[0045] S31, the air conditioner determines whether the indoor coil temperature has reached the set temperature.

[0046] S32: When the indoor coil temperature does not reach the set temperature, the air conditioner adjusts the compressor's operating frequency according to the indoor air outlet temperature.

[0047] When the temperature of the internal coil of the air conditioner reaches the set temperature, the temperature of the internal coil is relatively high and will not cause the air conditioner to enter the freeze protection mode. Moreover, the operating status of the compressor is matched with the cooling load, which can meet the user's cooling needs. Therefore, the air conditioner keeps the compressor's operating frequency unchanged to maintain the cooling effect of the air conditioner and ensure the stable operation of the air conditioner.

[0048] The air conditioner uses the cooling method provided in this embodiment to determine whether the indoor coil temperature has reached the set temperature. If the indoor coil temperature has not reached the set temperature, the low temperature may cause the air conditioner to frequently enter freeze protection mode, resulting in unstable cooling. In other words, the air conditioner's operating state may not meet the user's cooling needs. Therefore, based on the indoor air outlet temperature, the compressor's operating frequency is further adjusted to improve the air conditioner's operational stability, enhance the indoor cooling effect, and thus meet the user's cooling needs and improve the user experience.

[0049] This disclosure provides a method for cooling in an air conditioner. For example... Figure 4 As shown, the method includes:

[0050] S01, the air conditioner detects the outdoor ambient temperature.

[0051] S02, When the outdoor ambient temperature is lower than the temperature threshold, the air conditioner starts the compressor and shuts down the outdoor fan.

[0052] S31, the air conditioner determines whether the indoor coil temperature has reached the set temperature.

[0053] S41, if the air conditioner's indoor coil temperature has not reached the set temperature, determine whether the indoor air outlet temperature has reached the set temperature.

[0054] S42, when the indoor air outlet temperature reaches the set temperature, the air conditioner determines whether the compressor's operating frequency has reached the frequency threshold.

[0055] S43, the air conditioner increases the compressor's operating frequency when the compressor's operating frequency has not reached the frequency threshold.

[0056] Among them, the frequency threshold is related to the compressor's energy efficiency ratio.

[0057] Using the air conditioning cooling method provided in this embodiment, if the indoor coil temperature is below the set temperature, the air conditioner may frequently enter freeze protection mode due to the low indoor coil temperature, meaning the air conditioner's operating state may not meet the user's cooling needs. Therefore, it is further determined whether the indoor air outlet temperature has reached the set temperature. If the indoor air outlet temperature has reached the set temperature, the indoor air outlet temperature is relatively high, further confirming that the air conditioner's operating state does not meet the system load corresponding to the user's cooling needs. To improve the cooling effect, the air conditioner determines whether the compressor's operating frequency has reached a frequency threshold. If the compressor's operating frequency has not reached the frequency threshold, the compressor's operating frequency is increased. By determining whether the compressor's operating frequency has reached the frequency threshold, it is possible to avoid the compressor frequency being too high, leading to a decrease in the energy efficiency ratio, resulting in excessive energy consumption and low heat exchange efficiency. While ensuring the compressor's energy efficiency ratio, increasing the compressor's operating frequency can maximize the compressor frequency and compression ratio, reducing the failure rate.

[0058] Optionally, the air conditioner adjusts the compressor's operating frequency according to the indoor air outlet temperature, and further includes: maintaining the compressor's operating frequency or reducing the compressor's operating frequency when the indoor air outlet temperature does not reach the set temperature.

[0059] In this situation, if the indoor air outlet temperature does not reach the set temperature, the low temperature of the indoor coil may cause the air conditioner to frequently enter freeze protection mode. The solution is to maintain the compressor's operating frequency, or reduce it until the temperature difference between the indoor air outlet temperature and the set temperature is less than the temperature difference threshold. By reducing the compressor's operating frequency, the indoor coil temperature can be further increased to reach the set temperature, thereby reducing the likelihood of entering freeze protection mode and improving the stability of the air conditioner's operation.

[0060] Optionally, after the air conditioner determines whether the compressor's operating frequency has reached the frequency threshold, it also includes: the air conditioner starting the outdoor fan when the compressor's operating frequency has reached the frequency threshold.

[0061] In this scenario, when the air conditioner's compressor operates at its maximum energy efficiency ratio (EER), it indicates that the compressor has reached its highest efficiency ratio. However, the cooling effect may still fall short of the user's needs. Increasing the compressor's operating frequency further to improve cooling would decrease the EER, thus reducing the overall cooling performance. Therefore, the air conditioner activates the outdoor fan to further enhance the compressor's EER, thereby meeting the user's indoor cooling requirements and improving the user experience.

[0062] Optionally, after the air conditioner determines whether the compressor's operating frequency has reached the frequency threshold, it further includes: if the compressor's operating frequency has not reached the frequency threshold, the air conditioner increases the compressor's operating frequency.

[0063] In this way, if the compressor's operating frequency is below the frequency threshold, increasing the compressor's operating frequency can further improve the energy efficiency ratio. By increasing the compressor's operating frequency, the air conditioner's cooling capacity can be increased, thus meeting the user's cooling needs.

[0064] Optionally, if the compressor's operating frequency does not reach the frequency threshold, the air conditioner increases the compressor's operating frequency, including: the air conditioner determines the compressor's compensation frequency based on the current indoor ambient temperature and the set temperature; the air conditioner increases the compressor's operating frequency according to the compensation frequency.

[0065] In this way, the air conditioner determines the compressor's compensation frequency based on the current indoor ambient temperature and the set temperature, and increases the compressor's operating frequency according to the compensation frequency. This allows the compensation frequency to match the air conditioner's lack of cooling capacity to reach the set temperature, thereby further improving the air conditioner's cooling capacity and enhancing the indoor cooling effect.

[0066] Optionally, the compensation frequency of the compressor is determined based on the current ambient temperature and the set temperature, including: calculating a second temperature difference between the current ambient temperature and the set temperature; and determining the compensation frequency corresponding to the second temperature difference based on the pre-saved correspondence between the second temperature difference and the compressor frequency.

[0067] Thus, since the second temperature difference is the temperature difference between the current indoor environment and the user's desired temperature when the compressor's operating frequency reaches the frequency threshold, it can characterize the cooling capacity that the air conditioner lacks to reach the user's desired temperature when the compressor's operating frequency reaches the frequency threshold. Therefore, by obtaining the compensation frequency through this second temperature difference, the compensation frequency can be matched with the cooling capacity that the air conditioner lacks to reach the set temperature, thereby further improving the air conditioner's cooling capacity and enhancing the indoor cooling effect.

[0068] Optionally, the air conditioner starts the outdoor fan, including: the air conditioner determines the target fan speed of the outdoor fan based on the current indoor ambient temperature and the set temperature; the air conditioner adjusts the speed of the outdoor fan to the target fan speed.

[0069] In this way, the air conditioner determines the target fan speed of the outdoor fan based on the current indoor ambient temperature and the set temperature, and adjusts the outdoor fan speed to the target speed. The current ambient temperature and set temperature indicate the current indoor temperature, allowing the outdoor fan speed to match the current indoor temperature, thereby improving the cooling effect.

[0070] Optionally, the air conditioner determines the target fan speed of the outdoor fan based on the current indoor ambient temperature and the set temperature, including: calculating a second temperature difference between the current ambient temperature and the set temperature; and determining the target fan speed corresponding to the second temperature difference based on a pre-saved correspondence between the second temperature difference and the fan speed.

[0071] In this way, a second temperature difference is calculated between the current ambient temperature and the set temperature. This second temperature difference represents the temperature difference between the current indoor environment and the user's desired temperature when the compressor's operating frequency reaches a frequency threshold. Therefore, it can characterize the cooling capacity that the air conditioner lacks to reach the user's desired temperature when the compressor's operating frequency reaches the frequency threshold. Based on the pre-saved correspondence between the second temperature difference and the fan speed, the air conditioner determines the target fan speed corresponding to the second temperature difference, thereby improving the air conditioner's energy efficiency ratio. This matches the outdoor fan speed with the cooling capacity that the air conditioner lacks to reach the user's desired temperature, compensating for the cooling capacity deficiency when the compressor's operating frequency reaches the frequency threshold, meeting the user's indoor temperature needs, and improving the user experience.

[0072] This disclosure provides a method for cooling in an air conditioner. For example... Figure 5 As shown, the method includes:

[0073] S01, the air conditioner detects the outdoor ambient temperature.

[0074] S02, When the outdoor ambient temperature is lower than the temperature threshold, the air conditioner starts the compressor and shuts down the outdoor fan.

[0075] S03, the air conditioner adjusts the compressor's operating frequency based on the indoor coil temperature and the indoor air outlet temperature.

[0076] S51 indicates that the air conditioner issues a fault message when the temperature difference between the indoor coil temperature and the indoor air outlet temperature exceeds the temperature difference threshold.

[0077] When using the air conditioning cooling method provided in this embodiment, if the temperature difference between the indoor coil temperature and the indoor air outlet temperature is greater than the temperature difference threshold, it indicates that the air conditioner has malfunctioned and sends a fault message to the user.

[0078] Combination Figure 6 As shown, this disclosure provides an apparatus for air conditioner cooling, including a processor 100 and a memory 101. Optionally, the apparatus may further include a communication interface 102 and a bus 103. The processor 100, communication interface 102, and memory 101 can communicate with each other via the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call logical instructions in the memory 101 to execute the air conditioner cooling method described in the above embodiment.

[0079] Furthermore, the logic instructions in the aforementioned memory 101 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0080] The memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, thereby implementing the method for air conditioner cooling in the above embodiments.

[0081] The memory 101 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 101 may include high-speed random access memory and may also include non-volatile memory.

[0082] This disclosure provides an air conditioner that includes the above-described apparatus for air conditioner cooling.

[0083] This disclosure provides a storage medium storing computer-executable instructions configured to perform the above-described method for cooling an air conditioner.

[0084] The aforementioned storage medium can be either transient or non-transient.

[0085] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0086] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0087] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0088] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0089] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for cooling in an air conditioner, characterized in that, include: Detect outdoor ambient temperature; When the outdoor ambient temperature is lower than the temperature threshold, start the compressor and turn off the outdoor fan; The compressor's operating frequency is adjusted based on the inner coil temperature and the indoor air outlet temperature. Specifically, the following steps are taken: First, it is determined whether the inner coil temperature has reached the set temperature. If the inner coil temperature has not reached the set temperature, it is determined whether the indoor air outlet temperature has reached the set temperature. If the indoor air outlet temperature has reached the set temperature, it is determined whether the compressor's operating frequency has reached a frequency threshold. If the compressor's operating frequency has not reached the frequency threshold, the compressor's operating frequency is increased. If the compressor's operating frequency has reached the frequency threshold, the outdoor fan is started.

2. The method according to claim 1, characterized in that, The starting of the compressor includes: The target operating frequency of the compressor is determined based on the target temperature and the indoor ambient temperature. Adjust the operating frequency of the compressor to the target operating frequency.

3. The method according to claim 1, characterized in that, Starting the outdoor fan includes: The target fan speed of the outdoor fan is determined based on the current indoor ambient temperature and the set temperature. Adjust the speed of the outdoor fan to the target fan speed.

4. The method according to any one of claims 1 to 3, characterized in that, Also includes: A fault message is issued if the temperature difference between the internal coil temperature and the indoor air outlet temperature exceeds a temperature difference threshold.

5. An apparatus for cooling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to perform, when executing the program instructions, the method for cooling an air conditioner as described in any one of claims 1 to 4.

6. An air conditioner, characterized in that, Includes the apparatus for air conditioning refrigeration as described in claim 5.

7. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for cooling an air conditioner as described in any one of claims 1 to 4.

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