Frequency hopping control method and control device of air conditioner and air conditioner

Abstract

The application relates to the field of electrical appliances, and provides a frequency hopping control method and device of an air conditioner and the air conditioner. The method comprises the following steps: obtaining a target operation mode required by the air conditioner, indoor temperature and outdoor temperature; judging whether a frequency hopping operation needs to be performed according to the target operation mode and an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature; in the case that the frequency hopping operation needs to be performed, determining a target shunt mode of the air conditioner according to a preset target operation frequency, and adjusting to the target shunt mode; and performing the frequency hopping operation based on the target shunt mode to adjust the operation frequency of the compressor to the target operation frequency. The application realizes active adaptation of a refrigerant flow path structure to a target high-frequency working condition, effectively suppresses pressure impact caused by sudden increase of refrigerant flow in the frequency hopping process, and thus guarantees the rapid temperature control response capability while enhancing the reliability and durability of the whole machine operation.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a frequency-hopping control method, control device, and air conditioner for an air conditioner. Background Technology

[0002] In existing variable frequency air conditioning control technology, frequency jump operation typically employs a direct frequency increase strategy. This means that when a significant temperature difference between indoors and outdoors is detected, or when the user-set temperature deviates significantly from the current room temperature, the main controller directly instructs the variable frequency drive module to rapidly increase the compressor's operating frequency from its current value to a preset high target frequency, thereby achieving rapid cooling or heating. This process is performed under the premise that the refrigerant flow path structure remains unchanged. The flow path configuration is usually statically switched only based on the operating mode or preset operating condition range, and has no dynamic correlation with the specific frequency jump action.

[0003] This control method has inherent flaws: when the compressor frequency increases sharply, the refrigerant mass flow rate discharged per unit time increases dramatically, while the flow cross-sectional area, resistance characteristics, and distribution method of the fixed flow path cannot be adjusted in real time. This leads to a sudden and significant increase in high-pressure side pressure, forming a significant pressure shock wave. This shock can easily cause severe vibration of the piping system, weld fatigue, or even rupture, and may also cause instability in the electronic expansion valve control, compressor liquid return, or excessive discharge temperature. Furthermore, under extreme ambient temperatures (such as high-temperature refrigeration or low-temperature heating), the system is already on the edge of high load, and the sudden increase in flow rate caused by frequency jumps further exacerbates pressure fluctuations and mechanical stress, seriously threatening the safety and reliability of the entire unit. Existing technologies have failed to effectively solve the fluid dynamic mismatch problem caused by the lag of the flow path dynamic response behind the rapid frequency change during frequency jumps. Summary of the Invention

[0004] This invention provides a frequency jump control method, control device, and air conditioner for air conditioning, which addresses the deficiencies in the prior art and achieves the following technical effects: it realizes the active adaptation of the refrigerant flow path structure to the target high-frequency operating conditions, effectively suppresses the pressure shock caused by the sudden increase in refrigerant flow during the frequency jump process, thereby ensuring rapid temperature control response capability while significantly reducing the risks of pipeline vibration, valve body whistling, and structural fatigue, and enhancing the reliability and durability of the whole machine operation.

[0005] In a first aspect, the present invention provides a frequency-hopping control method for an air conditioner, comprising: Obtain the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner; Based on the target operating mode and the indoor-outdoor temperature difference between the indoor and outdoor temperatures, it is determined whether a frequency jump operation needs to be performed. When a frequency jump operation is required, the target air distribution mode of the air conditioner is determined according to the preset target operating frequency, and the air conditioner is adjusted to the target air distribution mode. The frequency jump operation is performed based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency.

[0006] According to some embodiments of the present invention, when a frequency hopping operation is required, the step of determining the target shunt mode of the air conditioner based on a preset target operating frequency includes: If the target operating frequency is greater than a preset frequency threshold, then the target traffic splitting mode is a multi-traffic splitting mode; If the target operating frequency is less than or equal to a preset frequency threshold, then the target splitting mode is a single splitting mode.

[0007] According to some embodiments of the present invention, the preset frequency threshold is determined based on the target operating mode; Wherein, in the target operating mode of cooling mode, the preset frequency threshold is a first frequency threshold; in the target operating mode of heating mode, the preset frequency threshold is a second frequency threshold; the first frequency threshold is less than or equal to the second frequency threshold.

[0008] According to some embodiments of the present invention, in the step of determining the target diversion mode as a multi-diversion mode in response to the target operating frequency being greater than a preset frequency threshold: the number of diversions in the multi-diversion mode is determined based on the target operating frequency and / or the indoor-outdoor temperature difference; The number of diversions is positively correlated with both the target operating frequency and the indoor-outdoor temperature difference.

[0009] According to some embodiments of the present invention, the step of determining whether a frequency jump operation needs to be performed based on the target operating mode and the indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature includes: In cooling mode, if the indoor and outdoor temperature difference is greater than or equal to a first set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor and outdoor temperature difference is less than the first set temperature difference, it is determined that a frequency jump operation does not need to be performed. In heating mode, if the indoor-outdoor temperature difference is greater than or equal to the second set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor-outdoor temperature difference is less than the second set temperature difference, it is determined that a frequency jump operation does not need to be performed. Wherein, the first set temperature difference is greater than or equal to the second set temperature difference.

[0010] According to some embodiments of the present invention, the step of performing the frequency jump operation based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency includes: In the target flow splitting mode, the frequency of the compressor is increased to the target operating frequency by a first frequency ramp rate at a preset percentage. After a preset time, the frequency of the compressor is further increased to the target operating frequency at a second frequency ramp rate; Wherein, the first upsampling rate is greater than the second upsampling rate, and the preset percentage is greater than or equal to 50%.

[0011] According to some embodiments of the present invention, in the step of performing the frequency hopping operation based on the target splitting mode: The first upsampling rate and the second upsampling rate are configured according to the target offsampling mode; wherein, when the target offsampling mode is a multi-offsampling mode, the first upsampling rate is greater than the first upsampling rate when the target offsampling mode is a single-offsampling mode, and the second upsampling rate is greater than the second upsampling rate when the target offsampling mode is a single-offsampling mode.

[0012] According to some embodiments of the present invention, it further includes: During the frequency jump operation, the real-time operating parameters of the compressor are detected; If the real-time operating parameters exceed the preset safety range, the frequency jump operation is paused, and the current operating frequency is maintained. Control the air conditioner to switch to multi-flow mode, or continue to increase the number of flow splits in multi-flow mode, and check the real-time operating parameters of the compressor again after completion; If the real-time operating parameters fall back to a safe range within a preset time period, the frequency jump operation will continue; or, if the real-time operating parameters do not fall back to a safe range within a preset time period, the frequency jump operation will be terminated and the system will switch to normal operating mode.

[0013] Secondly, the present invention also protects a frequency-hopping control device for an air conditioner, comprising: The acquisition module is used to acquire the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner to operate. The first control module is used to determine whether a frequency jump operation needs to be performed based on the target operating mode and the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature. The second control module is used to determine the target flow distribution mode of the air conditioner according to the preset target operating frequency when a frequency jump operation is required, and adjust it to the target flow distribution mode. The third control module is used to perform the frequency jump operation based on the target flow splitting mode, so as to adjust the operating frequency of the compressor to the target operating frequency.

[0014] Thirdly, the present invention also protects an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the frequency-hopping control method for the air conditioner as described in the first aspect of the present invention.

[0015] In summary, this invention significantly improves the safety and stability of variable frequency air conditioners operating under high-load conditions with large temperature differences by constructing collaborative control logic for operating condition criteria, flow path pre-configuration, and controlled frequency jumps. Compared to existing technologies where frequency mutations are disconnected from static flow path configuration, this invention achieves active adaptation of the refrigerant flow path structure to the target high-frequency operating conditions, effectively suppressing pressure shocks caused by sudden increases in refrigerant flow during frequency jumps. This ensures rapid temperature control response while significantly reducing risks such as pipe vibration, valve whistling, and structural fatigue, thereby enhancing the overall reliability and durability of the unit.

[0016] Specifically, because the target operating mode and the indoor-outdoor temperature difference are used as the criteria for determining frequency jump start, the system only triggers frequency jump when there is a genuine high heat load demand, avoiding ineffective or excessive frequency increases. More importantly, after confirming the need for frequency jump, the system pre-determines and switches to a matching flow distribution mode based on the target operating frequency, ensuring that the refrigerant path has the flow capacity adapted to high-frequency operating conditions before the frequency increase. For example, a high target frequency corresponds to the opening of multiple branches, increasing the total flow area and dispersing the refrigerant flow velocity, thereby smoothing out local pressure drop gradients. The operation logic of frequency jump is only executed after the target flow distribution mode is established, ensuring strict synchronization between the flow path state and the compressor output. The above-mentioned synergistic control effect fundamentally alleviates the hydraulic shock problem caused by the lag in flow path response in traditional frequency jump control. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is one of the flowcharts illustrating the frequency jump control method for air conditioners provided by the present invention.

[0019] Figure 2 This is the second flowchart of the frequency jump control method for air conditioners provided by the present invention.

[0020] Figure 3 This is the third flowchart of the frequency jump control method for air conditioners provided by the present invention.

[0021] Figure 4This is a schematic diagram of the frequency control device for an air conditioner provided by the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the air conditioner provided by the present invention. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The specific terms used in this specification are for illustrative purposes only and are not intended to limit the illustrated embodiments. For example, expressions such as "same" and "identical" not only indicate a strictly identical state, but also indicate a state with tolerances or differences in the degree of functionality. For example, expressions indicating relative or absolute arrangement such as "in a certain direction," "along a certain direction," "side by side," "perpendicular," "centered on," "concentric," or "coaxial" not only strictly indicate such an arrangement, but also indicate a state of relative displacement by tolerances or angles or distances with the same degree of functionality.

[0025] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "multiple" means two or more. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified. In the description of the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, B1 and / or B2 can represent: B1 existing alone, B1 and B2 existing simultaneously, and B2 existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] The frequency-hopping control method, control device, and air conditioner of this invention are described below with reference to the accompanying drawings. Before detailing the embodiments of this invention, the overall application scenario is described first. The frequency-hopping control method, control device, electronic device, and computer-readable storage medium of this invention can be applied locally to the air conditioner, to cloud platforms in the Internet field, or to other types of cloud platforms in the Internet field, or to third-party devices. These third-party devices may include various types such as mobile phones, tablets, laptops, in-vehicle computers, and other smart terminals.

[0028] The following description uses only the frequency jump control method applicable to air conditioners as an example. It should be understood that the frequency jump control method of this invention can also be applied to cloud platforms and third-party devices.

[0029] like Figures 1 to 3 As shown, the frequency-hopping control method for an air conditioner according to a first aspect embodiment of the present invention includes: Step S1: Obtain the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner to operate.

[0030] The target operating mode refers to the current or upcoming operating state of the air conditioner, which can be cooling mode, heating mode, dehumidification mode, or ventilation mode, etc. Among these, cooling mode and heating mode are the most closely related to frequency jump control. Indoor temperature is the air temperature in the space where the air conditioner is used, usually collected by a temperature sensor built into the indoor unit; outdoor temperature is the air temperature of the environment where the outdoor unit of the air conditioner is located, obtained by a temperature sensor installed in the outdoor unit.

[0031] In step S1, at the beginning of each control cycle, the air conditioner's main controller reads the operating instructions set by the user via remote control or application to determine the target operating mode, and synchronously receives temperature sensor data from the indoor and outdoor units from the communication bus. This provides basic environmental parameters and operating intent information for subsequent determination of whether frequency hopping operations are necessary.

[0032] Step S2: Based on the target operating mode and the indoor-outdoor temperature difference, determine whether a frequency jump operation needs to be performed.

[0033] The indoor-outdoor temperature difference refers to the absolute value of the difference between the indoor and outdoor temperatures. In cooling mode, it is usually the indoor temperature minus the outdoor temperature, while in heating mode, it is the outdoor temperature minus the indoor temperature. Its value reflects the magnitude of the current heat load.

[0034] Understandably, in this step, the main controller first determines the direction of temperature difference calculation based on the target operating mode, then calculates the actual temperature difference value, and compares this value with the preset temperature difference threshold for the corresponding operating mode. For example, if the actual temperature difference is greater than or equal to the threshold, it is determined that a frequency jump operation needs to be performed; otherwise, it is determined that no operation is required.

[0035] In this way, the above steps can be combined with the operating mode to identify the severity of the system's current operating conditions, avoiding unnecessary high-frequency operation under light load or mild conditions, thus balancing response speed and system stability. For example, when the temperature difference is large, it indicates that the user has a high demand for rapid room temperature adjustment, and it is necessary to perform a frequency jump to quickly increase the compressor frequency; conversely, if the temperature difference is small, there is no need for aggressive frequency increase.

[0036] Step S3: If a frequency jump operation is required, determine the target air distribution mode of the air conditioner according to the preset target operating frequency, and adjust it to the target air distribution mode.

[0037] The target operating frequency refers to the set frequency that the compressor needs to reach after completing the frequency jump. It is usually calculated by the air conditioning main control program based on the current load, user-set temperature, and energy efficiency strategy. The target flow distribution mode refers to the distribution method of the refrigerant flow path, which can be a single flow distribution mode (the refrigerant only flows through the main path) or a multi-flow distribution mode (the refrigerant is distributed to the main path and one or more bypass branches).

[0038] After determining in step S2 that a frequency jump is required, the main controller acquires the planned target operating frequency and determines the corresponding target flow splitting mode based on the pre-stored frequency-flow splitting mode mapping relationship. Subsequently, it outputs a control signal to drive the electronic expansion valve or switching valve assembly, changing the connectivity of the refrigerant flow path to ensure the actual flow path structure of the system matches the target flow splitting mode. Thus, after confirming the need for a frequency jump, this invention pre-configures a flow path structure suitable for high-pressure, high-frequency operation to reduce pipeline pressure drop and disperse refrigerant flow, thereby creating conditions for subsequent safe and efficient frequency jump operations.

[0039] Step S4: Perform a frequency jump operation based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency.

[0040] It should be explained that frequency jump operation refers to the control action of rapidly increasing the compressor's frequency from the current lower frequency to a higher target frequency within a short period of time. Based on the above step S4, after confirming that the target flow splitting mode has been successfully established and the flow path is stable, the main controller sends a frequency increase command to the variable frequency drive module, driving the compressor motor to increase its operating frequency from the current value to the target operating frequency within a set time.

[0041] This step emphasizes that the frequency jump must be performed after switching to the target flow distribution mode to ensure good pressure buffering and flow distribution capabilities from the initial stage of high-frequency operation. In this way, the above steps effectively suppress system pressure surges caused by sudden frequency increases while achieving rapid cooling or heating response, thereby ensuring the mechanical safety and operational reliability of the compressor and piping system.

[0042] In existing variable frequency air conditioning systems, frequency jump control typically employs a direct frequency ramp strategy. This means that when a rapid response is required, the main controller directly instructs the variable frequency drive module to quickly increase the compressor frequency from its current value to the target high frequency. This process is completed under the premise of a fixed refrigerant flow path structure. However, when the compressor frequency suddenly increases, the refrigerant mass flow rate discharged per unit time increases dramatically, while the flow cross-sectional area and resistance characteristics of the fixed flow path cannot be dynamically adjusted accordingly, leading to a sudden surge in high-pressure side pressure. This pressure surge can easily induce pipe resonance, weld fatigue, and even rupture. Furthermore, it may cause compressor liquid return or excessive discharge temperature due to refrigerant flow instability, seriously threatening system safety.

[0043] Therefore, to address the technical deficiencies in the aforementioned related technologies, this invention provides a frequency jump control method for air conditioners. This invention introduces the target operating frequency as the direct basis for selecting the flow distribution mode and forcibly sets flow distribution mode readiness as a precondition for frequency jump execution, thereby achieving active adaptation of the flow path state to high-frequency operating conditions at the control logic level. This mechanism overcomes the inherent defect of traditional frequency jump control where frequency changes occur but the flow path remains unchanged, enabling the system to possess a fluid dynamic environment matching the target high frequency before the frequency jump, fundamentally solving the pressure shock problem caused by flow path response lag.

[0044] It is understood that this invention, through a combination of temperature difference and operating mode criteria, can accurately identify the actual frequency jump demand under high-load scenarios, avoiding ineffective high-frequency operation. Simultaneously, the indoor-outdoor temperature difference combined with the operating mode accurately reflects the heat load intensity, thus preventing false frequency jumps in low-demand scenarios. The target operating frequency, as an input parameter for the flow path selection, ensures that the flow path configuration matches the upcoming high-frequency operating conditions. For example, when the target frequency is high, the system switches to a multi-flow path mode, distributing the refrigerant to the main path and one or more bypass branches, effectively increasing the total flow area and reducing local flow velocity and pressure drop gradient. Frequency jumps are performed under this flow path condition, allowing the high-flow refrigerant discharged from the compressor to be rationally diverted, significantly weakening the amplitude and rise rate of the pressure wave. Thus, the rapid temperature control capability brought by frequency jumps is retained, while fundamentally mitigating the adverse effects of hydraulic shock on the system structure.

[0045] In summary, this invention constructs a pre-flow path adaptation mechanism by dynamically coupling frequency jump decision-making with the flow splitting mode. This mechanism effectively suppresses pressure fluctuations caused by frequency jumps without sacrificing temperature regulation speed, enhancing the system's operational safety and structural durability under large temperature difference conditions, and providing a reliable technical path for the stable control of high-frequency inverter air conditioners.

[0046] Furthermore, based on the above basic working principle, the specific working process of the present invention is illustrated below: After the air conditioner is powered on, step S1 is executed first. The main controller reads the user-set operating instructions to determine the target operating mode and simultaneously collects data from the indoor and outdoor temperature sensors. Then, step S2 is executed, where the controller calculates the indoor and outdoor temperature difference and, based on the current target operating mode, determines whether this temperature difference meets the conditions for triggering a frequency jump. If the determination result is negative, the air conditioner operates according to the normal control logic; if the determination result is positive, step S3 is executed.

[0047] In step S3, the controller queries a preset rule or mapping table based on the planned target operating frequency to determine the corresponding target flow distribution mode. For example, if the target frequency is high, a multi-flow distribution mode is selected; if the target frequency is low, a single-flow distribution mode is maintained. After determination, the controller outputs a signal to drive the flow distribution valve assembly to switch the refrigerant flow path to the target flow distribution mode. After the flow path switching is completed and stabilized, step S4 is executed, where the controller controls the variable frequency drive module to rapidly increase the compressor frequency according to a predetermined strategy until the target operating frequency is reached. Throughout the process, the pre-configuration of the flow distribution mode provides the necessary fluid path guarantee for high-frequency operation, ensuring that the frequency jump operation is completed smoothly and safely.

[0048] In summary, this invention significantly improves the safety and stability of variable frequency air conditioners operating under high-load conditions with large temperature differences by constructing collaborative control logic for operating condition criteria, flow path pre-configuration, and controlled frequency jumps. Compared to existing technologies where frequency mutations are disconnected from static flow path configuration, this invention achieves active adaptation of the refrigerant flow path structure to the target high-frequency operating conditions, effectively suppressing pressure shocks caused by sudden increases in refrigerant flow during frequency jumps. This ensures rapid temperature control response while significantly reducing risks such as pipe vibration, valve whistling, and structural fatigue, thereby enhancing the overall reliability and durability of the unit.

[0049] Specifically, because the target operating mode and the indoor-outdoor temperature difference are used as the criteria for determining frequency jump start, the system only triggers frequency jump when there is a genuine high heat load demand, avoiding ineffective or excessive frequency increases. More importantly, after confirming the need for frequency jump, the system pre-determines and switches to a matching flow distribution mode based on the target operating frequency, ensuring that the refrigerant path has the flow capacity adapted to high-frequency operating conditions before the frequency increase. For example, a high target frequency corresponds to the opening of multiple branches, increasing the total flow area and dispersing the refrigerant flow velocity, thereby smoothing out local pressure drop gradients. The operation logic of frequency jump is only executed after the target flow distribution mode is established, ensuring strict synchronization between the flow path state and the compressor output. The above-mentioned synergistic control effect fundamentally alleviates the hydraulic shock problem caused by the lag in flow path response in traditional frequency jump control.

[0050] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, when a frequency hopping operation is required, the step of determining the target air conditioning splitting mode based on a preset target operating frequency includes: If the target operating frequency is greater than a preset frequency threshold, the target traffic splitting mode is set to multi-split mode. If the target operating frequency is less than or equal to a preset frequency threshold, the target splitting mode is a single splitting mode.

[0051] It should be noted that before performing a frequency jump operation, the system needs to pre-establish a refrigerant flow path state that matches the target operating frequency to avoid fluid dynamic imbalance caused by sudden frequency changes. Therefore, this embodiment introduces a frequency threshold as a criterion for switching the flow splitting mode. The preset frequency threshold reflects the system's flow capacity boundary in terms of structure and heat exchange capacity.

[0052] When the target operating frequency exceeds the preset frequency threshold, it means that the refrigerant mass flow rate discharged by the compressor will increase significantly after the frequency jump. If a single flow path is still used, insufficient flow cross-sectional area will lead to a sudden increase in high-pressure side pressure and a surge in flow velocity, which may induce vibration or valve control instability. Therefore, after the frequency jump command is issued but before the actual frequency increase, the control system prioritizes switching the flow path to a multi-flow path mode, allowing the refrigerant to flow through multiple parallel branches simultaneously, increasing the effective flow area, reducing the flow velocity per unit branch, and thus providing suitable flow path conditions for high-frequency operation. Conversely, if the target operating frequency does not exceed the preset frequency threshold, it indicates that the flow rate after the frequency jump is still within the safe handling range of a single flow path. In this case, maintaining the single flow path mode is sufficient, without the need to open additional branches, ensuring control simplicity and avoiding ineffective valve operation.

[0053] For example, when starting powerful cooling in a high-temperature environment, with a target frequency set at 90 Hz and a preset threshold of 80 Hz, the system controls the four-way valve and the diversion solenoid valve to operate before the frequency jump, opening the main path and the bypass branch to form a dual-flow path structure; while if the target frequency is 70 Hz, the original single flow path remains unchanged, and then the frequency is increased.

[0054] In this way, by presetting the corresponding diversion mode according to the target frequency before the frequency jump, the flow path state is ensured to be ready synchronously with the high flow conditions to be applied, which effectively alleviates the pressure shock caused by the flow path response lag in the traditional frequency jump process and improves the stability and reliability of the frequency jump process.

[0055] Furthermore, the preset frequency threshold is determined based on the target operating mode.

[0056] Specifically, when the target operating mode is cooling mode, the preset frequency threshold is the first frequency threshold; when the target operating mode is heating mode, the preset frequency threshold is the second frequency threshold; the first frequency threshold is less than or equal to the second frequency threshold.

[0057] In the embodiments of the present invention, the preset frequency threshold is not fixed, but dynamically determined according to the current target operating mode of the air conditioner. This is because there are significant differences in the refrigerant circulation characteristics, system pressure difference distribution, and heat exchanger flow resistance characteristics under cooling and heating conditions, resulting in different refrigerant flow rates and flow stability at the same frequency. Therefore, a first frequency threshold suitable for the cooling mode and a second frequency threshold suitable for the heating mode are set respectively to more accurately match the flow path requirements under their respective operating conditions.

[0058] Specifically, in cooling mode, the refrigerant flows sequentially from the compressor through the outdoor heat exchanger (acting as a condenser) and the indoor heat exchanger (acting as an evaporator). In this mode, the high-pressure side of the system is located outdoors, and the piping layout and heat exchanger structure are typically more sensitive to high flow velocities. Therefore, the first frequency threshold is set relatively low to trigger the multi-flow mode earlier, suppressing vibration and noise caused by excessively high flow velocities on the high-pressure side. In heating mode, the refrigerant flow direction is reversed. The indoor heat exchanger acts as a condenser, bearing high pressure. Furthermore, due to the lower ambient temperature, the compressor discharge pressure is higher, but the mass flow rate is relatively limited. The system's tolerance to high-frequency operation is enhanced. Therefore, the second frequency threshold can be set equal to or higher than the first frequency threshold to avoid prematurely switching to the multi-flow mode and increasing unnecessary control complexity.

[0059] For example, the first frequency threshold can be set to 75 Hz, and the second frequency threshold can be set to 80 Hz. When the air conditioner is in cooling mode and the target operating frequency is 78 Hz, the system determines that it needs to switch to multi-split mode because it exceeds 75 Hz; while in heating mode, if the target frequency is also 78 Hz, it does not exceed 80 Hz and still maintains single-split mode.

[0060] In this way, the above configuration enables the diversion criterion to adapt to the fluid dynamic characteristics under different operating modes, thereby ensuring the adaptability of the flow path before frequency jump while taking into account control efficiency and system stability.

[0061] According to some embodiments of the present invention, in the step of determining the target diversion mode as a multi-diversion mode in response to the target operating frequency being greater than a preset frequency threshold: the number of diversions in the multi-diversion mode is determined based on the target operating frequency and / or the indoor-outdoor temperature difference.

[0062] The number of diversions is positively correlated with both the target operating frequency and the indoor-outdoor temperature difference.

[0063] In this embodiment, when the target operating frequency exceeds a preset frequency threshold and a multi-spinner mode is required, the system further dynamically determines the specific number of spinners based on the target operating frequency and / or the indoor-outdoor temperature difference. This number is not fixed at two, but is finely adjusted according to the actual heat load demand and refrigerant flow rate. A higher target operating frequency indicates a greater compressor output power and a higher refrigerant mass flow rate; a greater indoor-outdoor temperature difference requires a greater heat exchange, and similarly, a higher refrigerant circulation rate. Both directly reflect the system's current flow pressure and heat exchange intensity, therefore the number of spinners is positively correlated with these factors.

[0064] Specifically, the control system incorporates a mapping relationship or algorithm model, using the target operating frequency and the indoor-outdoor temperature difference as input variables, and outputs the corresponding number of branch circuits to be activated. For example, in cooling mode, if the target frequency is 85 Hz and the indoor-outdoor temperature difference is 12℃, the system can activate two branch circuits; if the target frequency rises to 95 Hz and the temperature difference expands to 18℃, three branches will be activated to further reduce the flow rate of each branch, distribute the refrigerant evenly, and improve the overall utilization rate of the heat exchanger. Conversely, if the frequency only slightly exceeds the threshold and the temperature difference is small, only two flow paths may be activated.

[0065] In this way, by linking the number of flow splits with the target frequency and temperature difference, the present invention enables the flow path structure to be expanded as needed. This avoids pressure drop concentration and flow instability caused by insufficient flow splitting under high frequency and high load, and also prevents excessive flow splitting at low load from causing redundant valve action or a decrease in heat exchange efficiency. Thus, the flow path configuration and thermodynamic state are optimized in frequency jump operation.

[0066] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the step of determining whether a frequency jump operation needs to be performed based on the target operating mode and the indoor-outdoor temperature difference between indoor and outdoor temperatures includes: In cooling mode, if the indoor and outdoor temperature difference is greater than or equal to the first set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor and outdoor temperature difference is less than the first set temperature difference, it is determined that a frequency jump operation does not need to be performed.

[0067] In heating mode, if the indoor and outdoor temperature difference is greater than or equal to the second set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor and outdoor temperature difference is less than the second set temperature difference, it is determined that a frequency jump operation does not need to be performed.

[0068] Wherein, the first set temperature difference is greater than or equal to the second set temperature difference.

[0069] In this embodiment of the invention, the fundamental reason for using different temperature difference thresholds to determine frequency jump requirements lies in the significant differences in the system's thermodynamic behavior under cooling and heating conditions. In cooling mode, the air conditioner absorbs heat through the indoor evaporator and releases heat to the environment through the outdoor condenser. When the indoor and outdoor temperature difference is large, it indicates that the high-temperature external environment is continuously transferring heat to the indoor environment, resulting in a high heat load. The compressor needs to increase its frequency to maintain the set temperature. Therefore, using a higher first set temperature difference as the frequency jump criterion can effectively distinguish between true high load and short-term temperature fluctuations, avoiding false triggering.

[0070] In heating mode, the system absorbs heat from the low-temperature environment through the outdoor evaporator and then releases the heat through the indoor condenser. Due to the low enthalpy of outdoor air and reduced heat exchange efficiency in winter, the compressor may already be operating near full load even with a relatively small temperature difference between indoors and outdoors. Simultaneously, the compressor's suction volume increases at low temperatures, limiting mass flow; if the frequency is not increased in time, it will be difficult to maintain the indoor temperature. Therefore, a lower second set temperature difference is used, allowing the system to initiate frequency jumps before the temperature difference reaches its maximum, compensating for the reduction in heating capacity in advance.

[0071] Furthermore, the heating process requires periodic defrosting, leading to heating interruptions and further exacerbating the need for rapid frequency response. Cooling processes, on the other hand, typically do not experience such interference, allowing for more continuous control. Therefore, setting the first set temperature difference to be greater than or equal to the second set temperature difference aligns with the actual differences in load response characteristics between the two modes.

[0072] For example, in a typical application, the first set temperature difference can be set to 12℃, and the second set temperature difference can be set to 10℃. When the air conditioner is running in cooling mode, the indoor temperature is 30℃ and the outdoor temperature is 17℃, with a temperature difference of 13℃, which exceeds 12℃. The system is judged to be under high load and frequency jump is executed. If it is running in heating mode, the indoor temperature is 20℃ and the outdoor temperature is 11℃, with a temperature difference of 9℃, which is less than 10℃, so frequency jump is not executed. However, when the outdoor temperature drops to 10℃, the temperature difference reaches 10℃, and frequency jump is triggered to cope with the decrease in heating capacity caused by the decrease in ambient temperature.

[0073] In summary, the above strategies enable frequency jump control to adaptively adjust the judgment benchmark according to the operating mode, accurately identify the actual load level under different operating conditions, thereby avoiding the increase in energy consumption caused by premature frequency jump during cooling, preventing the decrease in comfort caused by response lag during heating, and ultimately improving the adjustment accuracy and operating stability of the whole machine in a wide range of operating conditions.

[0074] like Figure 2 As shown, according to some embodiments of the present invention, the step of performing a frequency jump operation based on a target splitting mode to adjust the compressor's operating frequency to a target operating frequency includes: In target flow splitting mode, the compressor frequency is increased to a preset percentage of the target operating frequency at the first frequency ramp rate; After a preset duration, the compressor frequency is further increased to the target operating frequency at a second frequency ramp rate.

[0075] The first upsampling rate is greater than the second upsampling rate, and the preset percentage is greater than or equal to 50%.

[0076] In this embodiment, the frequency jump operation adopts a staged frequency ramp-up strategy, which aims to balance the response speed of frequency regulation with the stability of system operation. After the target shunt mode is determined, the compressor does not directly ramp up to the target operating frequency at a constant rate. Instead, it first rapidly ramps up to a certain proportion of the target frequency at a relatively fast first ramp-up rate, so that the system quickly approaches the required output capacity and shortens the temperature regulation delay. Then, after a preset period of time, it smoothly transitions to the final target operating frequency at a slower second ramp-up rate.

[0077] It's important to explain that the first frequency ramp-up rate is set higher than the second because, in the initial stage of frequency ramp-up, the system has not yet entered a high-load stable state, and refrigerant flow and pressure fluctuations are relatively controllable. At this time, a faster ramp-up effectively improves dynamic response performance. However, when the frequency approaches the target value, the compressor discharge pressure, refrigerant flow rate, and internal pressure drop of the heat exchanger increase significantly. Continuing with a high-speed ramp-up can easily lead to problems such as pipeline vibration, sudden noise increases, or poor oil return. Therefore, using a slower ramp-up rate in the latter half helps the system gradually adapt to the fluid dynamics changes under high-frequency operating conditions, ensuring a smooth transition in pressure, flow, and lubrication conditions.

[0078] Furthermore, the design with a preset percentage of no less than 50% ensures that the main frequency adjustment range has been covered in the previous stage, retaining the advantage of rapid response while reserving sufficient space for subsequent fine-tuning. The preset duration is used to wait for the system to reach a preliminary steady state at an intermediate frequency point, such as completing refrigerant redistribution, pressure balancing, or fully establishing the flow path, thereby providing a stable operating foundation for the second stage of frequency ramp-up.

[0079] For example, if the target operating frequency is 80 Hz and the preset percentage is 60%, the first stage will increase the frequency to 48 Hz (80 × 60%) at a relatively fast rate and maintain this frequency for 30 seconds (preset duration); then, the frequency will increase from 48 Hz to 80 Hz at a slower rate. During this process, the first upsampling rate can be 2 Hz / s, and the second upsampling rate can be 0.5 Hz / s.

[0080] In summary, the segmented frequency increase strategy described above can effectively suppress mechanical shocks and fluid disturbances during high-frequency switching while ensuring that the air conditioner can quickly respond to temperature requirements, thereby improving the stability and reliability of the compressor during frequency jumps.

[0081] Furthermore, in the step of performing frequency hopping operation based on the target splitting mode: The first upsampling rate and the second upsampling rate are configured according to the target offsampling mode; wherein, when the target offsampling mode is a multi-offsampling mode, the first upsampling rate is greater than the first upsampling rate when the target offsampling mode is a single-offsampling mode, and the second upsampling rate is greater than the second upsampling rate when the target offsampling mode is a single-offsampling mode.

[0082] This implementation further differentiates the frequency ramp rate according to the target flow splitting mode. The core of this approach is that the differences in system flow path structure and refrigerant distribution characteristics under different flow splitting modes directly affect the dynamic response capability and stability boundary of compressor frequency regulation.

[0083] In multi-flow mode, the number of indoor units or heat exchange branches increases, and the refrigerant is distributed to multiple parallel flow paths, resulting in a larger overall system volume and more complex flow resistance distribution. However, because parallel multi-flow paths effectively reduce the flow density of a single path, improve oil return conditions, and enhance the thermal response uniformity of the heat exchanger, the system has stronger anti-disturbance capabilities during high-frequency operation. Therefore, this mode allows for higher first and second frequency ramp rates to fully utilize the thermodynamic redundancy brought by multiple flow paths, accelerate the frequency ramp-up process, and shorten the time required to reach the target output capacity.

[0084] In contrast, in single-flow mode, the refrigerant flows through a single path, resulting in high velocity, large pressure drop, and a single lubrication return path. If the frequency increases too rapidly, it can easily lead to localized overheating, insufficient oil return, or increased pressure fluctuations, thereby affecting compressor reliability. Therefore, a relatively conservative frequency increase rate is required to ensure sufficient oil circulation rate and pressure stability during frequency increases.

[0085] For example, when the target shunt mode is a single shunt, the first upsampling rate can be set to 1.5 Hz / s, and the second upsampling rate to 0.4 Hz / s; while in a multi-shunt mode (such as dual- or triple-shunt), the first upsampling rate can be increased to 2.5 Hz / s, and the second upsampling rate can be increased to 0.8 Hz / s. At the same target frequency, the entire frequency jump process in the multi-shunt mode takes less time, and the increase in system vibration and noise is smaller.

[0086] In this way, by dynamically linking the upsampling rate with the shunt mode, the frequency adjustment strategy can adapt to the current flow path structure of the system. Under the premise of ensuring safe operation, it maximizes the dynamic performance advantages of the multi-shunt architecture and improves the adjustment efficiency and operational stability of the whole machine under different configurations.

[0087] like Figure 3 As shown, according to some embodiments of the present invention, the frequency jumping control method further includes: During the frequency jump operation, the real-time operating parameters of the compressor are monitored; If the real-time operating parameters exceed the preset safety range, the frequency jump operation will be paused and the current operating frequency will be maintained. Control the air conditioner to switch to multi-flow mode, or continue to increase the number of flow splits in multi-flow mode, and check the real-time operating parameters of the compressor again after completion; If the real-time operating parameters fall back to a safe range within a preset time period, the frequency jump operation will continue; otherwise, if the real-time operating parameters do not fall back to a safe range within a preset time period, the frequency jump operation will be terminated and the system will switch to normal operating mode.

[0088] It is understood that this implementation method introduces a safety feedback mechanism based on the real-time operating parameters of the compressor. Its purpose is to proactively prevent system over-limit risks that may be caused by rapid frequency increase during the high-dynamic operation of frequency jumping, such as excessively high exhaust temperature, current overload, and abnormal pressure, so as to ensure equipment safety while pursuing response speed.

[0089] Specifically, during frequency ramping, key operating parameters, such as exhaust temperature, compressor current, and high and low pressure, are continuously monitored. If any parameter exceeds a preset safety threshold, the system immediately suspends the current frequency ramping action and locks the compressor frequency at its current value to prevent further deterioration of operating conditions. Instead of simply reverting or shutting down, the system actively switches to a multi-spindle mode, or further increases the number of branch lines if already in multi-spindle mode, thereby improving the system's thermal and fluid conditions. Increasing the number of branch lines effectively reduces the refrigerant flow rate per line, decreases flow resistance, and improves heat exchange area utilization, helping to quickly alleviate compressor load and causing excessive parameters to fall back to normal.

[0090] Subsequently, the system enters an observation window (i.e., a preset duration), during which it continuously monitors whether the parameters have returned to a safe range. If the parameters successfully return to a safe range, it indicates that the shunt adjustment is effective and the system has the ability to continue frequency jumping, so the original frequency jumping process is resumed; if the parameters have not returned to a safe range within the specified time, it is determined that high-frequency operation is not suitable under the current environment or load conditions, so the frequency jumping is terminated and the system returns to the normal operating mode (such as slowly adjusting the frequency according to PID) to maintain basic cooling / heating functions and ensure long-term reliability.

[0091] For example, during a frequency jump, if the exhaust temperature rapidly rises to 125℃ (the safe upper limit is 120℃), triggering protection, the system immediately pauses the frequency jump, locking the current frequency at 70 Hz and switching the indoor unit from single-split to dual-split mode. Within the next 30 seconds (preset duration), due to more even refrigerant distribution and improved condensation efficiency, the exhaust temperature drops to 115℃. The system determines it's safe and continues to jump the frequency to the target 80 Hz. Conversely, if the temperature remains above 120℃ after 30 seconds, the frequency jump is terminated, maintaining 70Hz operation and switching to normal control logic.

[0092] In summary, the above mechanism achieves closed-loop safety control of dynamic perception, proactive intervention, effect verification, and decision recovery / exit, which significantly improves the accuracy and adaptability of frequency jump operation under complex operating conditions. It avoids response delays caused by conservative control and prevents hardware damage caused by aggressive frequency increase, thus balancing performance and reliability.

[0093] The frequency jump control device for an air conditioner provided by the present invention will be described below. The frequency jump control device for an air conditioner described below can be referred to in correspondence with the frequency jump control method for an air conditioner described above.

[0094] like Figure 4 As shown, the frequency-hopping control device for an air conditioner according to a second aspect embodiment of the present invention includes: The acquisition module 110 is used to acquire the target operating mode, indoor temperature and outdoor temperature required for the air conditioner to operate; The first control module 120 is used to determine whether a frequency jump operation needs to be performed based on the target operating mode and the indoor and outdoor temperature difference between the indoor and outdoor temperatures. The second control module 130 is used to determine the target air conditioning mode based on the preset target operating frequency when a frequency jump operation is required, and adjust it to the target air conditioning mode. The third control module 140 is used to perform frequency jump operation based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency.

[0095] An air conditioner according to a third aspect of this invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the frequency-hopping control method of the air conditioner according to the first aspect of this invention.

[0096] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5 As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logic instructions in the memory 830 to execute a frequency-jumping control method for the air conditioner, including: acquiring the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner to operate; determining whether a frequency-jumping operation is needed based on the target operating mode and the indoor-outdoor temperature difference; if a frequency-jumping operation is needed, determining the target distribution mode of the air conditioner based on a preset target operating frequency and adjusting it to the target distribution mode; and executing a frequency-jumping operation based on the target distribution mode to adjust the compressor's operating frequency to the target operating frequency.

[0097] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several 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 methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0098] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by the computer, the computer can execute the frequency-jumping control method for the air conditioner provided by the above methods, including: obtaining the target operating mode, indoor temperature and outdoor temperature required for the air conditioner to operate; determining whether a frequency-jumping operation needs to be performed based on the target operating mode and the indoor-outdoor temperature difference between the indoor and outdoor temperatures; if a frequency-jumping operation needs to be performed, determining the target distribution mode of the air conditioner based on the preset target operating frequency and adjusting it to the target distribution mode; and performing a frequency-jumping operation based on the target distribution mode to adjust the operating frequency of the compressor to the target operating frequency.

[0099] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the frequency-jumping control method for the air conditioner provided above, including: acquiring the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner to operate; determining whether a frequency-jumping operation needs to be performed based on the target operating mode and the indoor-outdoor temperature difference between the indoor and outdoor temperatures; if a frequency-jumping operation needs to be performed, determining the target distribution mode of the air conditioner based on a preset target operating frequency and adjusting it to the target distribution mode; and performing a frequency-jumping operation based on the target distribution mode to adjust the operating frequency of the compressor to the target operating frequency.

[0100] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0101] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A frequency-hopping control method for an air conditioner, characterized in that, include: Obtain the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner; Based on the target operating mode and the indoor-outdoor temperature difference between the indoor and outdoor temperatures, determine whether a frequency jump operation needs to be performed. When a frequency jump operation is required, the target air distribution mode of the air conditioner is determined according to the preset target operating frequency, and the air conditioner is adjusted to the target air distribution mode. The frequency jump operation is performed based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency.

2. The frequency-jumping control method for an air conditioner according to claim 1, characterized in that, In cases where frequency hopping is required, the step of determining the target air conditioning mode based on a preset target operating frequency includes: If the target operating frequency is greater than a preset frequency threshold, then the target traffic splitting mode is a multi-split mode; If the target operating frequency is less than or equal to a preset frequency threshold, then the target splitting mode is a single splitting mode.

3. The frequency-jumping control method for air conditioning according to claim 2, characterized in that, The preset frequency threshold is determined based on the target operating mode; Wherein, in the target operating mode of cooling mode, the preset frequency threshold is a first frequency threshold; in the target operating mode of heating mode, the preset frequency threshold is a second frequency threshold; the first frequency threshold is less than or equal to the second frequency threshold.

4. The frequency-jumping control method for air conditioning according to claim 2, characterized in that, In the step of determining the target diversion mode as a multi-diversion mode in response to the target operating frequency being greater than a preset frequency threshold: the number of diversions in the multi-diversion mode is determined based on the target operating frequency and / or the indoor-outdoor temperature difference; The number of diversions is positively correlated with both the target operating frequency and the indoor-outdoor temperature difference.

5. The frequency-jumping control method for air conditioning according to claim 2, characterized in that, The step of determining whether a frequency jump operation needs to be performed based on the target operating mode and the indoor-outdoor temperature difference between the indoor and outdoor temperatures includes: In cooling mode, if the indoor and outdoor temperature difference is greater than or equal to a first set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor and outdoor temperature difference is less than the first set temperature difference, it is determined that a frequency jump operation does not need to be performed. In heating mode, if the indoor-outdoor temperature difference is greater than or equal to the second set temperature difference, it is determined that a frequency jump operation needs to be performed; if the indoor-outdoor temperature difference is less than the second set temperature difference, it is determined that a frequency jump operation does not need to be performed. Wherein, the first set temperature difference is greater than or equal to the second set temperature difference.

6. The frequency-jumping control method for an air conditioner according to any one of claims 1 to 5, characterized in that, The step of performing the frequency jump operation based on the target flow splitting mode to adjust the compressor's operating frequency to the target operating frequency includes: In the target flow splitting mode, the frequency of the compressor is increased to the target operating frequency by a first frequency ramp rate at a preset percentage. After a preset time, the frequency of the compressor is further increased to the target operating frequency at a second frequency ramp rate; Wherein, the first upsampling rate is greater than the second upsampling rate, and the preset percentage is greater than or equal to 50%.

7. The frequency-jumping control method for an air conditioner according to claim 6, characterized in that, In the step of performing the frequency hopping operation based on the target splitting mode: The first upsampling rate and the second upsampling rate are configured according to the target offsampling mode; wherein, when the target offsampling mode is a multi-offsampling mode, the first upsampling rate is greater than the first upsampling rate when the target offsampling mode is a single-offsampling mode, and the second upsampling rate is greater than the second upsampling rate when the target offsampling mode is a single-offsampling mode.

8. The frequency-jumping control method for an air conditioner according to any one of claims 1 to 5, characterized in that, Also includes: During the frequency jump operation, the real-time operating parameters of the compressor are detected; If the real-time operating parameters exceed the preset safety range, the frequency jump operation is paused, and the current operating frequency is maintained. Control the air conditioner to switch to multi-flow mode, or continue to increase the number of flow splits in multi-flow mode, and check the real-time operating parameters of the compressor again after completion; If the real-time operating parameters fall back to a safe range within a preset time period, the frequency jump operation will continue. Alternatively, if the real-time operating parameters do not fall back to a safe range within a preset time period, the frequency jump operation is terminated and the system switches to normal operating mode.

9. A frequency-jumping control device for an air conditioner, characterized in that, include: The acquisition module is used to acquire the target operating mode, indoor temperature, and outdoor temperature required for the air conditioner to operate. The first control module is used to determine whether a frequency jump operation needs to be performed based on the target operating mode and the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature. The second control module is used to determine the target flow distribution mode of the air conditioner according to the preset target operating frequency when a frequency jump operation is required, and adjust it to the target flow distribution mode. The third control module is used to perform the frequency jump operation based on the target flow splitting mode, so as to adjust the operating frequency of the compressor to the target operating frequency.

10. An air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the frequency hopping control method for the air conditioner as described in any one of claims 1 to 7.

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