Variable frequency air conditioner energy-saving control method, variable frequency air conditioner and computer readable storage medium

Abstract

This invention provides an energy-saving control method for variable frequency air conditioners, a variable frequency air conditioner, and a computer-readable storage medium. When controlling the variable frequency air conditioner to operate in cooling mode and executing energy-saving mode, the method obtains the energy-saving cooling frequency from a preset temperature frequency mapping table based on the target cooling temperature and the outdoor ambient temperature, and controls the compressor of the variable frequency air conditioner to start variable frequency operation at the energy-saving cooling frequency. When it is determined that the conditions are met, and the compressor maintains the energy-saving temperature maintenance frequency for a preset duration, and the preset correction conditions are met, the current energy-saving temperature maintenance frequency replaces the corresponding energy-saving temperature maintenance frequency in the preset temperature frequency mapping table, and the corrected energy-saving cooling frequency is calculated and obtained to replace the corresponding energy-saving cooling frequency in the preset temperature frequency mapping table. Thus, the energy-saving operating frequency of the compressor is adaptively corrected and updated according to the actual operating conditions of the variable frequency air conditioner to balance energy saving and comfort.

Description

Technical Field

[0001] This invention relates to the field of high-efficiency energy-saving air conditioning technology, and in particular to an energy-saving control method for variable frequency air conditioners, a variable frequency air conditioner implementing the control method, and a computer-readable storage medium. Background Technology

[0002] Air conditioners are common household appliances used in daily life to regulate and control parameters such as temperature, humidity, cleanliness, and airflow in the indoor air environment. With rapid technological advancements improving people's quality of life, consumer demand for air conditioners is becoming more diversified, and the development trend of air conditioners is gradually moving towards diversification, safety, efficiency, and energy saving.

[0003] Compared to fixed-frequency air conditioners, variable-frequency air conditioners use an inverter to change the power supply frequency, thereby changing the compressor's rotational speed to adjust cooling / heating capacity, resulting in more energy-efficient, more precise temperature control, and more efficient heat exchange.

[0004] However, existing energy-saving control methods for inverter air conditioners, when executing energy-saving mode, obtain the operating frequency of the compressor corresponding to the outdoor ambient temperature range through the outdoor ambient temperature, so as to control the compressor of the inverter air conditioner to operate according to the corresponding preset operating frequency.

[0005] Because the preset operating frequency of the compressor in the energy-saving mode is a fixed operating frequency obtained by the designer through laboratory testing methods based on a specific energy-saving power consumption control target, and the actual usage scenarios at the laboratory and the user end are different, it is difficult to accurately match the preset operating frequency of the compressor with the actual usage at the user end, resulting in the inverter air conditioner being unable to achieve effective energy saving in the actual use at the user end.

[0006] Moreover, the preset operating frequency of the compressor in the energy-saving mode of existing inverter air conditioners does not adaptively adjust to the actual operating conditions of the user to accurately match the actual operating conditions. This results in poor energy-saving effect of inverter air conditioners in actual use by users, thereby affecting energy-saving effect and heat exchange efficiency, and consequently affecting user comfort experience. Summary of the Invention

[0007] To achieve the first objective of this invention, this invention provides an energy-saving control method for variable frequency air conditioners, which can adaptively modify and update the energy-saving operating frequency of the compressor according to the actual operating conditions of the variable frequency air conditioner. This allows the energy-saving operating frequency of the compressor to accurately match the energy-saving and heat exchange requirements of the actual operating conditions, thereby achieving efficient energy-saving operation during actual use by the user, resulting in better energy-saving effects and effectively improving heat exchange efficiency. This balances energy saving and comfort, thereby enhancing the user's comfort experience.

[0008] To achieve the second objective of this invention, this invention provides an inverter air conditioner that performs the above-described inverter air conditioner energy-saving control method.

[0009] To achieve the third objective of this invention, this invention provides a computer-readable storage medium for performing the above-described variable frequency air conditioner energy-saving control method.

[0010] To achieve the first objective of this invention, this invention provides an energy-saving control method for a variable frequency air conditioner, comprising: when controlling the variable frequency air conditioner to operate in cooling mode and executing an energy-saving mode, determining the target cooling temperature... and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. And control the compressor of the inverter air conditioner to reduce the cooling frequency for energy saving. Start variable frequency operation; when it is determined that the conditions are met. And determine the compressor to maintain energy-saving temperature control frequency. If the system continues to run for a preset duration and the preset correction conditions are met, the current energy-saving temperature maintenance frequency will be adjusted. Replace the corresponding energy-saving temperature maintenance frequency in the preset temperature frequency mapping table. And calculate and obtain the corrected energy-saving cooling frequency. Replace the corresponding energy-saving cooling frequency in the preset temperature-frequency mapping table. ;in, The preset cooling frequency corresponds to the preset temperature frequency mapping table. The preset temperature frequency corresponds to the preset temperature frequency in the preset temperature frequency mapping table. The first correction factor is... Indoor ambient temperature, This is the preset temperature difference value.

[0011] A further approach is to, when the target cooling temperature... and outdoor ambient temperature If all frequencies exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table. .

[0012] A further approach is to, when the target cooling temperature... and outdoor ambient temperature If any of the frequencies does not exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table according to the preset proximity condition. .

[0013] A further approach is to preset the proximity condition as: satisfying and ;in, The preset cooling temperature corresponds to the preset temperature frequency mapping table. The preset outdoor temperature corresponds to the preset temperature frequency mapping table. The first proximity threshold, This is the second proximity threshold.

[0014] A further proposed solution is to preset the correction conditions as follows: ;in, This is the third threshold.

[0015] A further solution is that the variable frequency air conditioner energy-saving control method also includes storing a preset temperature-frequency mapping table in a cloud database connected to the controller of the variable frequency air conditioner.

[0016] A further approach is to adjust the cooling temperature based on the target temperature. and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. At that time, determine the corresponding energy-saving cooling frequency in the preset temperature-frequency mapping table. Is it empty? If so, then the corresponding preset cooling frequency in the preset temperature frequency mapping table will be used. Set to energy-saving cooling frequency If not, the corresponding energy-saving cooling frequency is directly obtained from the preset temperature-frequency mapping table. .

[0017] A further approach is to include, in addition to, calculating and obtaining the predicted total cooling time for variable frequency air conditioners. And / or, calculate the predicted remaining duration of cooling. When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table When empty, When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table When not empty, ;in, This is the preset cooling rate.

[0018] A further solution is that the variable frequency air conditioner energy-saving control method also includes: calculating and obtaining the advance start time. ;in, This is the second correction factor.

[0019] To achieve the second objective of this invention, this invention provides a variable frequency air conditioner, including a controller, the controller being equipped with a processor and a memory, the memory storing a computer program, and the computer program being executed by the processor to implement the various steps of the above-mentioned variable frequency air conditioner energy-saving control method.

[0020] To achieve the third objective of this invention, this invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the various steps of the above-described variable frequency air conditioner energy-saving control method.

[0021] Therefore, the variable frequency air conditioner energy-saving control method of the present invention can adaptively correct and update the energy-saving operating frequency of the compressor according to the actual operating conditions of the variable frequency air conditioner, so that the energy-saving operating frequency of the compressor accurately matches the energy-saving and heat exchange requirements of the actual operating conditions, so as to achieve efficient energy-saving operation in the actual use process at the user end, resulting in better energy-saving effect and effectively improving heat exchange efficiency, thereby taking into account both energy saving and comfort, and thus improving the user's comfort experience. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the variable frequency air conditioner of the present invention.

[0023] Figure 2 This is a schematic diagram of the electrical connections of an embodiment of the variable frequency air conditioner of the present invention.

[0024] Figure 3 This is a flowchart of an embodiment of the variable frequency air conditioner energy-saving control method of the present invention.

[0025] Figure 4 This is an embodiment of the variable frequency air conditioner energy-saving control method of the present invention, based on the indoor ambient temperature. and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. The flowchart of the process.

[0026] Figure 5 This is a schematic diagram of data transmission and processing in an embodiment of the variable frequency air conditioner of the present invention.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0028] Various exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the invention or its application or use. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0029] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0031] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0033] Example of variable frequency air conditioner energy-saving control method: Combination Figure 1 and Figure 2 In this embodiment, the inverter air conditioner includes an indoor unit 11 and an outdoor unit 12. The indoor unit 11 is equipped with an indoor fan 15 and an indoor heat exchanger, while the outdoor unit 12 is equipped with an outdoor fan 14, an outdoor heat exchanger, and a compressor 17. A heat exchange loop for refrigerant circulation is formed between the outdoor heat exchanger, the compressor 17, and the indoor heat exchanger. The cooling capacity is adjusted by changing the power supply frequency through the inverter 16, thereby changing the rotational speed of the compressor 17 and enabling the compressor 17 of the inverter air conditioner to operate at an energy-saving frequency. When the inverter cooling operation is activated, the operating frequency of compressor 17 gradually decreases until the cooling capacity of the inverter air conditioner is in balance with the real-time indoor heat load. This means the cooling and heating loads in the indoor environment are balanced, thus maintaining a stable low operating frequency for compressor 17 to maintain a constant temperature. In other words, compressor 17 stably maintains an energy-saving temperature-maintaining frequency. This allows for more precise temperature control, greater energy savings, and quieter operation.

[0034] It should be noted that the compressor 17 of the inverter air conditioner achieves inverter cooling operation by reducing the operating frequency, which is existing technology in the field of inverter air conditioners and is not intended to limit the present invention.

[0035] Specifically, the outdoor unit 12 is also equipped with an outdoor temperature sensor 20, which is used to detect the outdoor ambient temperature. Furthermore, the indoor unit 11 is also equipped with an indoor temperature sensor 19, which is used to detect the indoor ambient temperature. .

[0036] Furthermore, the inverter air conditioner in this embodiment also includes a controller 10, which is connected to the indoor fan 15, the outdoor fan 14, the compressor 17, the indoor temperature sensor 19, and the outdoor temperature sensor 20, respectively. The controller 10 is used to control the operation of the indoor fan 15 and the outdoor fan 14, and also controls the compressor 17 to operate at a variable frequency through the inverter 16. It is also used to obtain the outdoor ambient temperature from the outdoor temperature sensor 20. The indoor ambient temperature is obtained from the indoor temperature sensor 19. .

[0037] In some implementations, the controller 10 is also connected to a cloud database 13 and a mobile remote control device 18, respectively, for storing relevant data in the cloud database 13 and for receiving relevant instructions sent by the mobile remote control device 18. The mobile remote control device 18 includes, but is not limited to, remote controls, mobile phones, tablets, PDAs, and other mobile control devices. In specific implementations, the communication methods that can be used include, but are not limited to, infrared, Bluetooth, and wireless LAN.

[0038] based on Figure 1 and Figure 2 The variable frequency air conditioner shown in this embodiment discloses a variable frequency air conditioner energy-saving control method applied to the variable frequency air conditioner, and combines it with... Figure 3 The flowchart of the variable frequency air conditioner energy-saving control method is shown below, and the specific steps are as follows.

[0039] In step S11, the controller 10 controls the inverter air conditioner to operate in cooling mode. That is, the user sends a command to the indoor unit 11 of the inverter air conditioner via the mobile remote control device 18 to control the outdoor unit 12 to operate in cooling mode, so that the inverter air conditioner operates at the target cooling temperature set by the user. The system operates in cooling mode, and the controller 10 controls the inverter air conditioner to operate at the target cooling temperature. When the inverter air conditioner is in cooling mode, it enters energy-saving mode. This means the user sends a command via mobile remote control 18 to the indoor unit 11 of the inverter air conditioner to control the outdoor unit 12 to enter energy-saving mode, thus enabling the inverter air conditioner to cool to the target temperature. Cooling operation is performed for the target.

[0040] Therefore, in step S11, controller 10 controls the inverter air conditioner to cool to the target temperature. When the cooling system is in operation and energy-saving mode is executed, step S12 is performed based on the target cooling temperature. and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. Next, step S13 is executed, controlling the compressor 17 of the inverter air conditioner to operate at an energy-saving cooling frequency. Activate inverter operation, meaning compressor 17 operates at a higher energy-saving cooling frequency. The variable frequency operation starts at the initial operating frequency and then decreases to achieve efficient and energy-saving cooling of the indoor environment.

[0041] Subsequently, step S14 is executed, and the controller 10 determines whether the condition is met. If so, proceed to step S15; otherwise, controller 10 determines that the condition is not met. ,because This refers to the indoor ambient temperature, indicating the current indoor temperature. With the target temperature of cooling Not yet close, indicating the current indoor temperature. Since the user's cooling demand has not yet been met, step S13 is maintained, and compressor 17 continues to operate at variable frequency to cool the indoor environment. This is the preset temperature difference value.

[0042] When step S14, controller 10 determines that the condition is met. When, it indicates the current indoor ambient temperature. With the target temperature of cooling The temperature is basically the same, indicating that the current indoor temperature is close to that of the room. The basic cooling needs of the user are met, indicating that the compressor 17 has entered the constant temperature operation stage, thus executing step S15, whereby the controller 10 determines that the compressor 17 maintains the energy-saving temperature maintenance frequency. The compressor 17 operates continuously for a preset duration, allowing it to maintain a lower energy-saving temperature frequency. It keeps running, thus maintaining stable cooling in an energy-efficient manner.

[0043] When step S15 determines that compressor 17 maintains energy-saving temperature control frequency After running for a preset time, step S16 is executed. The controller 10 determines whether the preset correction conditions are met. If yes, step S17 is executed; otherwise, step S18 is executed.

[0044] When controller 10 determines in step S16 that the preset correction conditions are met, it indicates that the current compressor 17 is operating at the energy-saving temperature maintenance frequency. If reliable and uninterrupted, proceed to step S17 to adjust the current energy-saving temperature maintenance frequency. Replace the corresponding energy-saving temperature maintenance frequency in the preset temperature frequency mapping table. And calculate and obtain the corrected energy-saving cooling frequency. Replace the corresponding energy-saving cooling frequency in the preset temperature-frequency mapping table. In order to reduce the current energy-saving temperature maintenance frequency and the corrected energy-saving cooling frequency Replace and update the corresponding data in the preset temperature-frequency mapping table so that the data in the preset temperature-frequency mapping table can be adaptively corrected according to the actual operating conditions of the user terminal, so as to accurately match the actual operating conditions of the inverter air conditioner.

[0045] in, The preset cooling frequency corresponds to the preset temperature frequency mapping table. The preset temperature frequency corresponds to the preset temperature frequency in the preset temperature frequency mapping table. This is the first correction factor.

[0046] When controller 10 determines in step S16 that the preset correction conditions are not met, it indicates that the current compressor 17 is operating at an energy-saving temperature maintenance frequency. If unreliable or subject to interference, proceed to step S18, which presets the energy-saving temperature maintenance frequency corresponding to the temperature-frequency mapping table. and energy-saving cooling frequency This remains unchanged, thus ensuring the accuracy of the data in the preset temperature-frequency mapping table.

[0047] Specifically, the preset correction conditions are as follows: ;in, This is the third proximity threshold. Therefore, when controller 10 determines in step S16 that the condition is met... This indicates the current energy-saving temperature maintenance frequency. Preset temperature frequency corresponding to the preset temperature frequency mapping table If the deviation is small, it indicates that the current compressor 17 is operating at an energy-saving temperature maintenance frequency. Reliable and undisturbed; when step S16, controller 10 determines that the condition is not met. This indicates the current energy-saving temperature maintenance frequency. Preset temperature frequency corresponding to the preset temperature frequency mapping table A large deviation indicates that the current compressor 17 is operating at an energy-saving temperature maintenance frequency. Unreliable; interference is possible.

[0048] Further, in step S12, the controller 10 determines the target cooling temperature based on... and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. When this happens, step S121 will be executed, and the controller 10 will determine the energy-saving cooling frequency corresponding to the preset temperature-frequency mapping table. Is it empty (value is 0 or the value is missing)? If so, proceed to step S122 to map the preset temperature frequency to the preset cooling frequency in the preset temperature frequency mapping table. Set to energy-saving cooling frequency This causes the controller 10 in step S13 to control the compressor 17 of the inverter air conditioner to operate at an energy-saving cooling frequency. (At this time, the energy-saving cooling frequency) Equivalent to preset cooling frequency If not, proceed to step S123 to directly obtain the corresponding energy-saving cooling frequency from the preset temperature-frequency mapping table. This causes the controller 10 in step S13 to control the compressor 17 of the inverter air conditioner to operate at an energy-saving cooling frequency. Start variable frequency operation.

[0049] The preset data in the preset temperature-frequency mapping table are obtained by designers using laboratory testing methods or simulation software calculations, with optimal energy saving and cooling efficiency as control objectives. This data is preset in the controller 10 of the inverter air conditioner at the factory. At this time, the energy-saving cooling frequency in the preset temperature-frequency mapping table... and energy-saving temperature maintenance frequency Empty.

[0050] Therefore, each set of temperature frequency information in the preset temperature frequency mapping table of this embodiment includes the preset cooling temperature. Preset outdoor temperature Preset cooling frequency Preset temperature control frequency Energy-saving cooling frequency and energy-saving temperature maintenance frequency That is, each set of temperature frequency information is .

[0051] For example, the preset temperature-frequency mapping table for inverter air conditioners at the factory is as follows:

[0052] Furthermore, for example, a preset temperature difference value... The first correction factor is 1℃. The third threshold It is 3Hz.

[0053] Therefore, in actual use by users, the inverter air conditioner is controlled to cool to the target temperature. The cooling system is running in energy-saving mode, at which point the outdoor ambient temperature is... Then, based on the target cooling temperature and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. That is, the target temperature for cooling. Preset cooling temperature in the preset temperature frequency mapping table Corresponding matching, outdoor ambient temperature Preset outdoor temperature in the preset temperature frequency mapping table This allows the corresponding temperature and frequency information to be obtained from a preset temperature and frequency mapping table. At this time, the energy-saving cooling frequency and energy-saving temperature maintenance frequency Empty, thus storing temperature frequency information: The preset cooling frequency Set to energy-saving cooling frequency Then control the compressor 17 of the inverter air conditioner to Start variable frequency operation.

[0054] Until it is determined that the condition is met. That is, to determine that the condition is met. This indicates the current indoor ambient temperature. With the target temperature of cooling The temperature is basically the same, indicating that the current indoor temperature is close to that of the room. The basic cooling needs of the user are met, indicating that compressor 17 has entered the constant temperature operation stage. Therefore, it is determined that compressor 17 maintains an energy-saving temperature maintenance frequency. For example, compressor 17 maintains an energy-saving temperature control frequency for a preset duration of continuous operation. The compressor 17 operates continuously for a preset duration of 10 minutes, allowing it to maintain a lower energy-saving temperature frequency. Maintain operation to stably sustain cooling. Furthermore, once the preset correction conditions are met, it is determined that the desired effect is achieved. Thus determining that the satisfaction This indicates the current frequency of energy-saving temperature maintenance. Preset temperature frequency corresponding to the preset temperature frequency mapping table If the deviation is small, it indicates that the current compressor 17 is operating at an energy-saving temperature maintenance frequency. Reliable and undisturbed, thus maintaining the current energy-saving temperature control frequency. Replace the corresponding energy-saving temperature maintenance frequency in the preset temperature frequency mapping table. And calculate and obtain the corrected energy-saving cooling frequency. Replace the corresponding energy-saving cooling frequency in the preset temperature-frequency mapping table. This allows the preset temperature frequency mapping table to be adjusted based on the actual operating conditions at the user's end (different residential areas, floor heights, orientations, and interior layouts can affect indoor heat capacity and heat loss, thus influencing the optimal energy-saving cooling frequency). and energy-saving temperature maintenance frequency This, in turn, affects the optimal cooling energy consumption and cooling efficiency, and is adaptively updated to ensure that the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table is optimized. and energy-saving temperature maintenance frequency Updated to specific values, as shown below:

[0055] Therefore, when the inverter air conditioner reaches the target cooling temperature again... The system is operating in cooling mode and running in energy-saving mode, while the outdoor ambient temperature is... Then, based on the target cooling temperature and outdoor ambient temperature Obtain the energy-saving cooling frequency from the updated preset temperature-frequency mapping table. That is, the target temperature for cooling. Preset cooling temperature in the preset temperature frequency mapping table Corresponding matching, outdoor ambient temperature Preset outdoor temperature in the preset temperature frequency mapping table This allows the corresponding temperature and frequency information to be obtained from a preset temperature and frequency mapping table. Then, the corresponding energy-saving cooling frequency can be directly obtained from the preset temperature-frequency mapping table. Thus, the compressor 17 of the inverter air conditioner is controlled to... Activate variable frequency operation to precisely match the energy-saving and heat exchange requirements of actual operating conditions.

[0056] Therefore, the variable frequency air conditioner energy-saving control method of this embodiment can adaptively modify and update the energy-saving operating frequency of the compressor 17 according to the actual operating conditions of the variable frequency air conditioner, so that the energy-saving operating frequency of the compressor 17 accurately matches the energy-saving and heat exchange requirements of the actual operating conditions, so as to achieve efficient energy-saving operation in the actual use process at the user end, resulting in better energy-saving effect and effectively improving heat exchange efficiency, thereby taking into account both energy saving and comfort, and thus improving the user's comfort experience.

[0057] In some implementations, when the target cooling temperature is... and outdoor ambient temperature If all frequencies exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table. However, when the target cooling temperature is... and outdoor ambient temperature If any of the frequencies does not exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table according to the preset proximity condition. .

[0058] Specifically, the preset proximity condition is: satisfying and .in, The preset cooling temperature corresponds to the preset temperature frequency mapping table. The preset outdoor temperature corresponds to the preset temperature frequency mapping table. As the first proximity threshold, This is the second proximity threshold.

[0059] For example, the first proximity threshold The temperature is 0.3℃, which is close to the second threshold. The value is 0.8℃, therefore, when controlling the inverter air conditioner to cool to the target temperature... The cooling system is running in energy-saving mode, at which point the outdoor ambient temperature is... Due to the target temperature of cooling (Preset cooling temperature in the preset temperature frequency mapping table) ) and outdoor ambient temperature outdoor ambient temperature (Preset outdoor temperature in the preset temperature frequency mapping table) Outdoor ambient temperature If it does not exist in the preset temperature-frequency mapping table, then it is determined that the condition is met. and ,Right now and To obtain the closest temperature frequency information from the preset temperature frequency mapping table: In order to obtain the energy-saving cooling frequency This controls the compressor 17 of the inverter air conditioner to reduce its cooling frequency for energy saving. Activate the inverter operation to provide efficient and energy-saving cooling for the indoor environment.

[0060] In some embodiments, the variable frequency air conditioner energy-saving control method of this embodiment further includes: storing a preset temperature-frequency mapping table in a cloud database 13 connected to the controller 10 of the variable frequency air conditioner, so that the preset temperature-frequency mapping table updated and corrected in real time in the cloud database 13 can be called in the same operating conditions. When the user replaces the same model of variable frequency air conditioner, the modified preset temperature-frequency mapping table can be quickly retrieved from the cloud database 13 for use, so as to achieve the purpose of efficient and energy-saving cooling operation. When the user replaces a different model of variable frequency air conditioner, the preset temperature-frequency mapping table of the local variable frequency air conditioner can be compared with the modified preset temperature-frequency mapping table in the cloud database 13. If there are similar temperature and frequency information of a preset number of groups, it is determined that the operating environment of the local variable frequency air conditioner and the modified preset temperature-frequency mapping table in the cloud database 13 are highly similar, and the modified preset temperature-frequency mapping table in the cloud database 13 can be selected for use to achieve the purpose of efficient and energy-saving cooling operation.

[0061] In some embodiments, the variable frequency air conditioner energy-saving control method of this embodiment further includes: calculating and obtaining the predicted total cooling time. Furthermore, the remaining predicted cooling time is calculated. When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table... When empty, When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table When not empty, .in, This is the preset cooling rate.

[0062] For example, preset cooling rate The frequency is 0.5℃ / min, therefore, when the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table is... When empty, If the inverter air conditioner is set to the target cooling temperature Initial indoor temperature when cooling is turned on and energy-saving mode is activated Then the predicted total cooling time can be calculated. And calculate the remaining predicted cooling time. , The real-time indoor temperature after the inverter air conditioner has entered energy-saving mode for cooling; the corresponding energy-saving cooling frequency in the preset temperature frequency mapping table. If the variable frequency air conditioner is not empty, it will cool to the target temperature. Initial indoor temperature when cooling is turned on and energy-saving mode is activated ,but This allows for the calculation of the predicted total cooling time. And calculate the remaining predicted cooling time. , This refers to the real-time indoor temperature after the inverter air conditioner has entered energy-saving mode for cooling operation.

[0063] Therefore, the variable frequency air conditioner energy-saving control method in this embodiment can predict the total cooling time. And the predicted remaining duration of the cooling The system pushes information to users via IoT apps, allowing them to set the target cooling temperature for their inverter air conditioner while they are away from home. Inverter air conditioners can predict the total cooling time. Early start time before that time Turn on the inverter air conditioner in advance to cool to the target temperature. It operates in energy-saving mode to achieve energy-efficient cooling and improve user comfort.

[0064] Specifically, the variable frequency air conditioner energy-saving control method in this embodiment further includes: calculating and obtaining the advance start time. ;in, This is the second correction factor.

[0065] For example, the second correction factor The start time is 1.2 minutes, thus allowing for earlier start time. In this way, the inverter air conditioner can start the energy-saving mode 12 minutes in advance to ensure the indoor temperature is within reach when the user returns home. It has already met the user's cooling needs, thereby improving the user's comfort experience.

[0066] Example of a variable frequency air conditioner: Combination Figure 5 In this embodiment, the variable frequency air conditioner includes a controller 10, which is equipped with a processor 100 and a memory 101. The memory 101 stores a computer program that can run on the processor 100, and when the processor 100 executes the computer program, it implements each step of the above-mentioned variable frequency air conditioner energy-saving control method.

[0067] Optionally, the controller 10 may also include a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 can communicate with each other via the bus 103.

[0068] For example, a computer program can be divided into one or more modules, one or more of which are stored in memory 101 and executed by processor 100 to complete the various modules of the present invention. One or more modules can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in a terminal device.

[0069] The processor 100 referred to in this invention can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. The processor 100 is the control center of the electrical appliance, connecting all parts of the appliance through various interfaces and lines.

[0070] The memory 101 can be used to store computer programs and / or modules. The processor 100 implements various functions of the electrical appliance by running or executing the computer programs and / or modules stored in the memory 101 and calling the data stored in the memory 101. The memory 101 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function, etc.; the data storage area may store data created according to the use of the electrical appliance, etc. In addition, the memory 101 may include a high-speed random access memory 101, and may also include non-volatile memory 101, such as a hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0071] Examples of computer-readable storage media: If the computer program stored in the memory 101 of the inverter air conditioner is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above-described embodiments of the present invention can also be implemented by a computer program instructing related hardware. This computer program can be stored in a computer-readable storage medium, and when executed by the processor 100, it can implement the various steps of the above-described inverter air conditioner energy-saving control method.

[0072] Computer programs include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in computer-readable media can be appropriately added to or subtracted according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0073] The above embodiments are merely preferred examples of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles of the present invention in accordance with the claims of the present invention should be included in the scope of the present invention patent application.

Claims

1. A variable frequency air conditioner energy-saving control method, characterized in that, include: When controlling the inverter air conditioner to operate in cooling mode and executing energy-saving mode, the target cooling temperature is determined. and outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. And control the compressor of the inverter air conditioner to operate at the energy-saving cooling frequency. Start variable frequency operation; When it is determined that the condition is satisfied And determine the compressor to maintain an energy-saving temperature control frequency. If the system continues to run for a preset duration and the preset correction conditions are met, then the current energy-saving temperature maintenance frequency will be adjusted. Replace the corresponding energy-saving temperature maintenance frequency in the preset temperature frequency mapping table. And calculate and obtain the corrected energy-saving cooling frequency. To replace the corresponding energy-saving cooling frequency in the preset temperature-frequency mapping table. ; in, The preset cooling frequency corresponds to the preset temperature frequency mapping table. The preset temperature frequency corresponds to the preset temperature frequency in the preset temperature frequency mapping table. This is the first correction factor. Indoor ambient temperature, This is the preset temperature difference value.

2. The variable frequency air conditioner energy-saving control method according to claim 1, characterized in that: When the target cooling temperature and the outdoor ambient temperature If all frequencies exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table. .

3. The variable frequency air conditioner energy-saving control method according to claim 2, characterized in that: When the target cooling temperature and the outdoor ambient temperature If any of the frequencies does not exist in the preset temperature-frequency mapping table, then the energy-saving cooling frequency is obtained from the preset temperature-frequency mapping table according to a preset proximity condition. .

4. The variable frequency air conditioner energy-saving control method according to claim 3, characterized in that: The preset proximity condition is: satisfying and ; in, The preset cooling temperature corresponds to the preset temperature frequency mapping table. The preset outdoor temperature corresponds to the preset temperature frequency mapping table. As the first proximity threshold, This is the second proximity threshold.

5. The variable frequency air conditioner energy-saving control method according to claim 1, characterized in that: The preset correction condition is: ; in, This is the third threshold.

6. The variable frequency air conditioner energy-saving control method according to claim 1, characterized in that: The variable frequency air conditioner energy-saving control method also includes: The preset temperature-frequency mapping table is stored in a cloud database connected to the controller of the variable frequency air conditioner.

7. The variable frequency air conditioner energy-saving control method according to any one of claims 1 to 6, characterized in that: Based on the target cooling temperature and the outdoor ambient temperature Obtain the energy-saving cooling frequency from the preset temperature-frequency mapping table. At that time, determine the energy-saving cooling frequency corresponding to the preset temperature-frequency mapping table. Is it empty? If so, then the corresponding preset cooling frequency in the preset temperature frequency mapping table will be used. Set to energy-saving cooling frequency If not, the corresponding energy-saving cooling frequency is directly obtained from the preset temperature-frequency mapping table. .

8. The variable frequency air conditioner energy-saving control method according to claim 7, characterized in that: The variable frequency air conditioner energy-saving control method also includes: Calculate and obtain the predicted total cooling time And / or, calculate the predicted remaining duration of cooling. ; When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table When empty, When the energy-saving cooling frequency corresponding to the preset temperature frequency mapping table When not empty, ; in, This is the preset cooling rate.

9. The variable frequency air conditioner energy-saving control method according to claim 8, characterized in that: The variable frequency air conditioner energy-saving control method also includes: Calculate and obtain the early start time ; in, This is the second correction factor.

10. A variable frequency air conditioner, characterized in that, The system includes a controller, which is equipped with a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements each step of the variable frequency air conditioner energy-saving control method according to any one of claims 1 to 9.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements each step of the variable frequency air conditioner energy-saving control method according to any one of claims 1 to 9.

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