Air conditioner outdoor fan control method, air conditioner and computer readable storage medium

Abstract

The invention provides an air conditioner outdoor fan control method, an air conditioner and a computer readable storage medium. The air conditioner outdoor fan control method comprises the steps that the air conditioner is controlled to conduct refrigeration operation in a preset operation mode; the outlet temperature of the outdoor heat exchanger is obtained, and the outdoor environment temperature is obtained; and at the moment, the operation rotating speed of the outdoor fan is controlled to be increased to a first rotating speed from a first rotating speed threshold value and execute a first energy-saving adjusting operation, or the operation rotating speed of the outdoor fan is controlled to be reduced to a second rotating speed from a second rotating speed threshold value and execute a second energy-saving adjusting operation, according to the air conditioner outdoor fan control method, when the heat exchange capacity of the outdoor heat exchanger is kept in a high-efficiency state, the rotating speed of the outdoor fan can be dynamically adjusted to the optimal rotating speed to balance the heat exchange capacity of the outdoor heat exchanger and the running power of the whole air conditioner, so that the running energy consumption of the whole air conditioner is reduced, and energy waste is avoided; the heat exchange stability of the whole air conditioner is improved, the heat exchange performance and energy efficiency of the whole air conditioner are improved, and the purposes of energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] This invention relates to the field of intelligent air conditioning control methods, and in particular to an outdoor fan control method for an air conditioner, an air conditioner implementing the control method, and a computer-readable storage medium. Background Technology

[0002] Air conditioning has become an indispensable household appliance. An air conditioner consists of an indoor unit and an outdoor unit. The indoor unit's casing houses components such as an indoor heat exchanger and an indoor fan, while the outdoor unit's casing houses components such as an outdoor heat exchanger, an outdoor fan, and a compressor. These components form a heat exchange loop. During the coordinated heat exchange operation of the indoor and outdoor units, indoor air enters the casing through the air inlet, passes through the indoor heat exchanger, and is then delivered to the room through the air outlet, providing a comfortable indoor environment. Simultaneously, outdoor air enters the casing through the air inlet, exchanging heat with the outdoor heat exchanger located within the outdoor unit. This promotes the heat exchange process of the outdoor heat exchanger, ensuring its efficiency and effectiveness, and thus maintaining the air conditioner's heat exchange operation.

[0003] In the process of air conditioning cooling operation, in order to improve the heat exchange efficiency of the outdoor heat exchanger, the existing air conditioning outdoor fan control method is to increase the speed of the outdoor fan, thereby increasing the air volume for heat exchange with the outdoor heat exchanger, and thus increasing the heat exchange capacity of the outdoor heat exchanger to meet the high-efficiency heat exchange requirements of the outdoor heat exchanger.

[0004] However, existing air conditioner outdoor fan control methods only consider the heat exchange efficiency of the outdoor heat exchanger when controlling the increase of the outdoor fan speed, completely ignoring the energy consumption of the entire air conditioner. In fact, during the cooling operation of an air conditioner, when the outdoor fan speed increases to a certain suitable speed, the heat exchange capacity of the outdoor heat exchanger tends to stabilize. Therefore, when the outdoor fan speed continues to increase, it will no longer help the heat exchange capacity of the outdoor heat exchanger. Instead, it will cause abnormal fluctuations in components such as the compressor, leading to an increase in the operating power of the entire air conditioner, resulting in an increase in the overall energy consumption of the unit, thus causing energy waste and affecting the heat exchange stability of the entire air conditioner. Summary of the Invention

[0005] To achieve the first objective of this invention, this invention provides an outdoor fan control method for an air conditioner. While maintaining the heat exchange capacity of the outdoor heat exchanger at a high efficiency state, the method can dynamically adjust the speed of the outdoor fan to the optimal speed to balance the heat exchange capacity of the outdoor heat exchanger and the overall operating power of the air conditioner, thereby reducing the overall operating energy consumption of the air conditioner to avoid energy waste, and improving the heat exchange stability of the air conditioner, thereby improving the heat exchange performance and energy efficiency of the air conditioner and achieving the goal of energy saving and environmental protection.

[0006] To achieve the second objective of the present invention, the present invention provides an air conditioner that performs the above-described air conditioner outdoor fan control method.

[0007] To achieve the third objective of the present invention, the present invention provides a computer-readable storage medium for performing the above-described air conditioner outdoor fan control method.

[0008] To achieve the first objective of this invention, this invention provides a method for controlling an outdoor fan of an air conditioner, comprising: Control the air conditioner to operate in a preset cooling mode; Obtain the outlet temperature of the outdoor heat exchanger And obtain the outdoor ambient temperature ; when At that time, the operating speed of the outdoor fan is increased from the first speed threshold to the first speed. And execute the first energy-saving adjustment operation, or control the operating speed of the outdoor fan to decrease to the second speed threshold. And execute the second energy-saving adjustment operation; in, The first preset temperature difference is greater than 0℃.

[0009] A further proposed solution is that the first energy-saving adjustment operation includes: when When this happens, the operating speed of the outdoor fan is controlled to decrease to the third speed according to the first preset rule. until satisfied Then control the outdoor fan to maintain the third speed. Run; among which, The first operating power of the air conditioner before the outdoor fan speed increases to the first speed threshold. The second operating power of the air conditioner is the result of increasing the outdoor fan speed by the first speed threshold. The third operating power of the air conditioner is the result of the outdoor fan speed decreasing according to the first preset rule. This is the preset power difference value.

[0010] A further scheme is that the first preset rule includes: the reduction speed threshold for controlling the outdoor fan's operating speed decreases gradually as the number of reductions increases; the reduction speed threshold when the number of reductions is the first time is greater than the first speed threshold.

[0011] A further option is that the first energy-saving adjustment operation also includes: when When this happens, the outdoor fan speed is controlled to the first speed. run.

[0012] A further option is that the second energy-saving adjustment operation includes: when When this happens, the operating speed of the outdoor fan is controlled to increase from the second preset speed to the fourth speed. until satisfied Then control the outdoor fan to maintain the fourth speed. Run; among which, The first operating power of the air conditioner before the outdoor fan speed decreases to the second speed threshold. The second operating power of the air conditioner is the result of reducing the outdoor fan speed by the second speed threshold. The third operating power of the air conditioner is the result of increasing the outdoor fan speed according to the second preset rule. This is the preset power difference value.

[0013] A further proposed approach is that the second preset rule includes: the threshold for increasing the operating speed of the outdoor fan gradually decreases as the number of increases in the operating speed of the outdoor fan increases; the threshold for increasing the operating speed when the number of increases is the first time is greater than the second threshold.

[0014] A further option is that the second energy-saving adjustment operation also includes: when When this happens, the outdoor fan speed is controlled to the second speed. run.

[0015] A further option is, when When this happens, the operating speed of the outdoor fan is increased from the fifth speed threshold to the fifth speed. Run; among which, Second preset temperature difference.

[0016] A further option is, when When this happens, the operating speed of the outdoor fan is increased from the sixth speed threshold to the sixth speed. Running; where the sixth speed threshold is greater than the fifth speed threshold.

[0017] To achieve the second objective of this invention, this invention provides an air conditioner, including an indoor unit and an outdoor unit with circuit boards. The circuit boards are 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 the various steps of the above-described air conditioner outdoor fan control method.

[0018] To achieve the third objective of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the various steps of the above-described air conditioner outdoor fan control method.

[0019] The outdoor fan control method of this invention can dynamically adjust the speed of the outdoor fan to the optimal speed while maintaining the heat exchange capacity of the outdoor heat exchanger at a high efficiency state. This balances the heat exchange capacity of the outdoor heat exchanger and the operating power of the air conditioner, thereby reducing the operating energy consumption of the air conditioner, avoiding energy waste, and improving the heat exchange stability of the air conditioner. Ultimately, this improves the heat exchange performance and energy efficiency of the air conditioner, achieving the goal of energy conservation and environmental protection.

[0020] Furthermore, the outdoor fan control method of the present invention can also improve the heat exchange capacity of the outdoor heat exchanger by rapidly increasing the operating speed of the outdoor fan, so that the outdoor heat exchanger can quickly reach a high-efficiency heat exchange state. Attached Figure Description

[0021] Figure 1 This is a partial structural diagram of the outdoor unit of the air conditioner in an embodiment of the air conditioner outdoor fan control method of the present invention.

[0022] Figure 2 This is a control flowchart of an embodiment of the air conditioner outdoor fan control method of the present invention.

[0023] Figure 3 This is a flowchart illustrating the execution of the first energy-saving adjustment operation in an embodiment of the air conditioner outdoor fan control method of the present invention.

[0024] Figure 4 This is a flowchart illustrating the second energy-saving adjustment operation performed in an embodiment of the air conditioner outdoor fan control method of the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Example of an air conditioner outdoor fan control method: This embodiment of the air conditioner includes an indoor unit and an outdoor unit 10. The indoor unit's indoor casing houses components such as an indoor heat exchanger and an indoor fan. See [link to relevant documentation]. Figure 1The outdoor unit 10 has an outdoor heat exchanger 13, an outdoor fan 12, a compressor 14, and other components installed in its outdoor casing 11. The indoor heat exchanger, compressor 14, and outdoor heat exchanger 13 form a heat exchange circuit for the air conditioner. During the coordinated heat exchange operation of the indoor and outdoor units 10, indoor air enters the interior of the indoor casing through the air inlet as the indoor fan rotates. After heat exchange, the air is delivered to the room through the air outlet of the indoor casing to provide a comfortable indoor environment for users. At the same time, outdoor air enters the outdoor casing 11 through the air inlet as the outdoor fan 12 rotates, and exchanges heat with the outdoor heat exchanger 13 located inside the outdoor casing 11 to promote the heat exchange process of the outdoor heat exchanger 13, thereby ensuring the heat exchange efficiency and effect of the outdoor heat exchanger 13 and maintaining the overall heat exchange operation of the air conditioner.

[0032] Specifically, in this embodiment, the outdoor unit 10 is equipped with a first temperature sensor 15 and a second temperature sensor 16. The first temperature sensor 15 is used to detect the outlet temperature of the outdoor heat exchanger 13. The second temperature sensor 16 is used to detect the outdoor ambient temperature where the outdoor unit 10 is located. Furthermore, in this embodiment, the first temperature sensor 15 is disposed at the refrigerant outlet of the outdoor heat exchanger 13, and in this embodiment, the second temperature sensor 16 is disposed on the surface of the outdoor heat exchanger 13.

[0033] See Figure 2 The following is a control flowchart of the air conditioner outdoor fan control method in this embodiment. The specific steps of the air conditioner outdoor fan control method in this embodiment are as follows.

[0034] Step S11 is executed to control the air conditioner to run in a preset operating mode for cooling. That is, the user sends a message to the indoor unit of the air conditioner via the remote control to control the outdoor unit 10 to run in the preset operating mode for cooling, so that the air conditioner runs in the preset operating mode for cooling.

[0035] Next, step S12 is executed to obtain the outlet temperature of the outdoor heat exchanger 13. And obtain the outdoor ambient temperature Specifically, the first temperature sensor 15 detects the outlet temperature of the outdoor heat exchanger 13 in real time. Furthermore, the second temperature sensor 16 monitors the outdoor ambient temperature of the outdoor unit 10 in real time. .

[0036] Then, step S13 is executed to determine whether the condition is met. If yes, proceed to step S14; otherwise, proceed to step S15. Wherein, The first preset temperature difference is greater than 0℃.

[0037] For example, in this embodiment, the first preset temperature difference The temperature is 1.5℃.

[0038] When step S13 determines that the condition is satisfied At that time, because the air conditioner is in cooling mode, the outlet temperature of the outdoor heat exchanger 13 is... Always higher than the outdoor ambient temperature Then when At that time, it can reflect the outlet temperature of the outdoor heat exchanger 13. outdoor ambient temperature The close proximity indicates that the outdoor heat exchanger 13 is currently operating at high efficiency, and the heat exchange effect of the outdoor unit 10 is very good. However, although the heat exchange effect of the outdoor unit 10 is good, the interaction of components such as the compressor 14 does not necessarily mean that the overall air conditioning unit is operating at its most energy-efficient level. In order to balance the energy-saving operation of the overall air conditioning unit, step S14 is executed to increase the operating speed of the outdoor fan 12 by increasing it to the first speed threshold. And perform the first energy-saving adjustment operation, or control the operating speed of the outdoor fan 12 to decrease to the second speed threshold. And execute the second energy-saving adjustment operation.

[0039] See Figure 3 The flowchart below shows the first energy-saving adjustment operation performed by the air conditioner outdoor fan control method in this embodiment. The specific steps are as follows.

[0040] When step S14 controls the outdoor fan 12 to increase its operating speed to the first speed threshold, Then, step S41 is executed, which is the first energy-saving adjustment operation.

[0041] After step S41 proceeds to execute the first energy-saving adjustment operation, step S411 is executed to determine whether the requirements are met. If so, proceed to step S412; otherwise, proceed to step S415. Wherein, The first operating power of the air conditioner before the outdoor fan 12 increases to the first speed threshold. The second operating power of the air conditioner is the operating speed of the outdoor fan 12 after the speed is increased by the first speed threshold.

[0042] When step S411 determines that the condition is satisfied This indicates that the second operating power of the air conditioner is increased after the outdoor fan 12's operating speed reaches the first speed threshold. The first operating power of the air conditioner before the outdoor fan 12 increases to the first speed threshold is greater than the operating speed of the outdoor fan 12. This means that in step S14, the operating speed of the outdoor fan 12 is increased to a first speed threshold. Then, the second operating power of the air conditioner The increase in energy consumption means that the overall energy consumption of the air conditioning unit is not trending towards energy saving. Therefore, it is necessary to adjust the operating speed of the outdoor fan 12 in the opposite direction. In this case, step S412 is executed to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset law. To reduce the operating speed of the outdoor fan 12 and achieve energy saving, step S413 is then executed to determine whether the requirements are met. If yes, proceed to step S414; otherwise, return to step S412.

[0043] in, The third operating power of the air conditioner is the result of the outdoor fan 12 decreasing at its operating speed according to the first preset rule. This is the preset power difference value.

[0044] Specifically, the first preset rule in this embodiment includes: the reduction speed threshold for controlling the reduction of the operating speed of the outdoor fan 12 gradually decreases as the number of reductions of the operating speed of the outdoor fan 12 increases, and the reduction speed threshold when the number of reductions is the first time is greater than the first speed threshold.

[0045] For example, the first speed threshold is 10 r / min, and the preset power difference is... If the value is 10W, then in step S14, the operating speed of the outdoor fan 12 is increased by 10 r / min to the first speed. Then, proceed to step S41 to execute the first energy-saving adjustment operation. When step S411 determines that the conditions are met... This indicates the second operating power of the air conditioner after the outdoor fan 12's operating speed increases by 10 r / min. The first operating power of the air conditioner before the outdoor fan speed increases by 10 r / min is greater than that of the outdoor fan 12. This means that in step S14, the operating speed of the outdoor fan 12 is increased by 10 r / min to the first speed. Then, the second operating power of the air conditioner The increase in energy consumption means that the overall energy consumption of the air conditioner is not trending towards energy saving. Therefore, it is necessary to reverse this trend by reducing the operating speed of the outdoor fan 12 to make the air conditioner move towards energy saving. In this case, step S412 is executed to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset rule. Specifically, the first preset rule includes: the reduction speed threshold for controlling the operating speed of the outdoor fan 12 gradually decreases as the number of reductions in the operating speed of the outdoor fan 12 increases, and the reduction speed threshold when the first reduction occurs is greater than the first speed threshold. Therefore, when the first reduction occurs, the operating speed of the outdoor fan 12 is reduced to the third speed at 15 r / min. Then, step S413 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed decreases for the first time by 15 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases by 10 r / min. If the difference is large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S412 and continues to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset rule. If the reduction is the second time, then the operating speed of the outdoor fan 12 is reduced by 10 r / min to the third speed. Then, step S413 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed decreases for the second time by 10 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S412 and continues to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset rule. If the reduction is now the third time, the operating speed of the outdoor fan 12 will be reduced by 8 r / min to the third speed. Then, step S413 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed decreases for the third time by 8 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S412 and continues to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset rule. At this point, the reduction has been made four times, so the operating speed of the outdoor fan 12 is reduced by 5 r / min to the third speed. Then, step S413 is executed to determine whether the condition is met. If not, it reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed decreases for the fourth time by 5 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S412 and continues to control the operating speed of the outdoor fan 12 to decrease to the third speed according to the first preset rule. At this point, the reduction has been made five times, so the operating speed of the outdoor fan 12 is reduced by 3 r / min to the third speed. Then, step S413 is executed to determine whether the condition is met. If not, it reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed decreases for the fifth time by 3 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases by 10 r / min. The difference is still relatively large, indicating that the air conditioning unit is not yet in a stable and energy-saving operating state, and will continue to cycle until it meets the requirements. That is, step S413 determines that the condition is satisfied. This reflects the third operating power of the air conditioner after the operating speed of the outdoor fan 12 decreases according to the first preset law. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 increases to the first speed threshold. The difference is less than or equal to the preset power difference. This indicates that the air conditioning unit has reached a stable and energy-saving operating state, thus executing step S414 to control the outdoor fan 12 to maintain the third speed. The operation ensures that the outdoor fan 12 operates at its optimal speed, balancing the heat exchange capacity of the outdoor heat exchanger 13 and the operating power of the air conditioning unit. This reduces the energy consumption of the air conditioning unit, avoids energy waste, and improves the heat exchange stability of the air conditioning unit, thereby enhancing its heat exchange performance and energy efficiency, and achieving the goal of energy conservation and environmental protection.

[0046] When step S411 is determined not to be satisfied This indicates that the second operating power of the air conditioner is increased after the outdoor fan 12's operating speed reaches the first speed threshold. The first operating power of the air conditioner is equal to or less than the operating speed of the outdoor fan 12 before it increases by the first speed threshold. This means that in step S14, the operating speed of the outdoor fan 12 is increased to a first speed threshold. Then, the second operating power of the air conditioner If the speed remains unchanged or decreases, it means that step S14 controls the outdoor fan 12 to increase its operating speed to the first speed threshold. This allows the air conditioning unit to operate in a more energy-efficient manner, achieving a stable and energy-saving operating state. At this point, the outdoor fan 12 operates at its optimal speed. Therefore, step S415 is executed to control the outdoor fan 12 to operate at the first speed. The system operates to balance the heat exchange capacity of the outdoor heat exchanger 13 and the operating power of the air conditioning unit, thereby reducing the operating energy consumption of the air conditioning unit, avoiding energy waste, and improving the heat exchange stability of the air conditioning unit, thus improving the heat exchange performance and energy efficiency of the air conditioning unit and achieving the goal of energy conservation and environmental protection.

[0047] See Figure 4 The flowchart below shows the second energy-saving adjustment operation performed by the air conditioner outdoor fan control method in this embodiment. The specific steps are as follows.

[0048] When step S14 controls the outdoor fan 12 to reduce its operating speed to the second speed threshold, Then, step S42 is executed, which is the second energy-saving adjustment operation.

[0049] After step S43 proceeds to execute the second energy-saving adjustment operation, step S421 is executed to determine whether the requirements are met. If so, proceed to step S422; otherwise, proceed to step S425. Wherein, The first operating power of the air conditioner before the outdoor fan 12's operating speed is reduced to the second speed threshold. The second operating power of the air conditioner is the operating speed of the outdoor fan 12 after it is reduced by the second speed threshold.

[0050] When step S421 determines that the condition is satisfied When the outdoor fan 12 operates at a speed that decreases below the second speed threshold, the second operating power of the air conditioner is indicated. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by the second speed threshold. This means that in step S14, the operating speed of the outdoor fan 12 is reduced to the second speed threshold. Then, the second operating power of the air conditioner The increase in speed causes the overall energy consumption of the air conditioning unit to deviate from the energy-saving trend, thus requiring a reverse adjustment of the operating speed of the outdoor fan 12. Therefore, step S422 is executed to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset law. To increase the operating speed of the outdoor fan 12 and achieve energy saving, step S423 is then executed to determine whether the requirements are met. If yes, proceed to step S424; otherwise, return to step S422.

[0051] in, The third operating power of the air conditioner is the result of increasing the operating speed of the outdoor fan 12 according to the second preset law. This is the preset power difference value.

[0052] Specifically, the second preset rule in this embodiment includes: the threshold for increasing the operating speed of the outdoor fan 12 gradually decreases as the number of increases in the operating speed of the outdoor fan 12 increases, and the threshold for increasing the operating speed when the number of increases is the first time is greater than the second speed threshold.

[0053] For example, the second speed threshold is 10 r / min, and the preset power difference is... If the value is 10W, then in step S14, the operating speed of the outdoor fan 12 is reduced by 10 r / min to the second speed. Then, proceed to step S42 to execute the second energy-saving adjustment operation. When step S421 determines that the energy-saving adjustment is satisfied... This indicates the second operating power of the air conditioner after the outdoor fan 12's operating speed decreases by 10 r / min. The first operating power of the air conditioner before the outdoor fan speed decreases by 10 r / min is greater than that of the outdoor fan 12. This means that in step S14, the operating speed of the outdoor fan 12 is reduced from 10 r / min to the second speed. Then, the second operating power of the air conditioner The increase in speed does not lead to energy saving in the overall air conditioning unit. Therefore, it is necessary to increase the operating speed of the outdoor fan 12 in the opposite direction to make the air conditioning more energy-efficient. So, step S422 is executed to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset law. Specifically, the second preset rule includes: the threshold for increasing the operating speed of the outdoor fan 12 gradually decreases as the number of increases in the operating speed of the outdoor fan 12 increases; and the threshold for increasing the operating speed when the number of increases is the first is greater than the second threshold. Therefore, when the number of increases is the first, the operating speed of the outdoor fan 12 increases from 15 r / min to the fourth speed. Then, step S423 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed increases by 15 r / min for the first time. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by 10 r / min. If the difference is large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S422 and continues to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset rule. At this point, the increase is the second time, so the operating speed of the outdoor fan 12 is increased by 10 r / min to the fourth speed. Then, step S423 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed increases for the second time by 10 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S422 and continues to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset rule. At this point, the increase is the third time, so the operating speed of the outdoor fan 12 is increased by 8 r / min to the fourth speed. Then, step S423 is executed to determine whether the condition is met. If not, this reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed increases for the third time by 8 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S422 and continues to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset rule. At this point, the increase is the fourth time, so the operating speed of the outdoor fan 12 is increased by 5 r / min to the fourth speed. Then, step S423 is executed to determine whether the condition is met. If not, it reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed increases for the fourth time by 5 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by 10 r / min. If the difference is still large, it indicates that the air conditioning unit is not yet in a stable and energy-saving operating state. Therefore, the process returns to step S422 and continues to control the operating speed of the outdoor fan 12 to increase to the fourth speed according to the second preset rule. At this point, the number of increases is the fifth, so the operating speed of the outdoor fan 12 is increased by 3 r / min to the fourth speed. Then, step S423 is executed to determine whether the condition is met. If not, it reflects the third operating power of the air conditioner after the outdoor fan 12's operating speed increases for the fifth time by 3 r / min. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases by 10 r / min. The difference is still relatively large, indicating that the air conditioning unit is not yet in a stable and energy-saving operating state, and will continue to cycle until it meets the requirements. That is, step S423 determines that the condition is met. This reflects the third operating power of the air conditioner after the operating speed of the outdoor fan 12 increases according to the second preset law. The first operating power of the air conditioner before the operating speed of the outdoor fan 12 decreases to the second speed threshold. The difference is less than or equal to the preset power difference. This indicates that the air conditioning unit has reached a stable and energy-saving operating state, thus executing step S424 to control the outdoor fan 12 to maintain the fourth speed. The operation ensures that the outdoor fan 12 operates at its optimal speed, balancing the heat exchange capacity of the outdoor heat exchanger 13 and the operating power of the air conditioning unit. This reduces the energy consumption of the air conditioning unit, avoids energy waste, and improves the heat exchange stability of the air conditioning unit, thereby enhancing its heat exchange performance and energy efficiency, and achieving the goal of energy conservation and environmental protection.

[0054] When step S421 is determined not to be satisfied When the outdoor fan 12 operates at a speed that decreases below the second speed threshold, the second operating power of the air conditioner is indicated. The first operating power of the air conditioner is equal to or less than the operating speed of the outdoor fan 12 before it decreases by the second speed threshold. This means that in step S14, the operating speed of the outdoor fan 12 is reduced to the second speed threshold. Then, the second operating power of the air conditioner If the speed remains unchanged or decreases, it means that step S14 controls the outdoor fan 12 to reduce its operating speed to the second speed threshold. This allows the air conditioning unit to operate in a more energy-efficient manner, achieving a stable and energy-saving operating state. At this point, the outdoor fan 12 operates at its optimal speed. Therefore, step S425 is executed to control the outdoor fan 12 to operate at the second optimal speed. The system operates to balance the heat exchange capacity of the outdoor heat exchanger 13 and the operating power of the air conditioning unit, thereby reducing the operating energy consumption of the air conditioning unit, avoiding energy waste, and improving the heat exchange stability of the air conditioning unit, thus improving the heat exchange performance and energy efficiency of the air conditioning unit and achieving the goal of energy conservation and environmental protection.

[0055] Therefore, the outdoor fan control method of this embodiment can dynamically adjust the speed of the outdoor fan 12 to the optimal speed while keeping the heat exchange capacity of the outdoor heat exchanger 13 in a highly efficient state. This balances the heat exchange capacity of the outdoor heat exchanger 13 and the operating power of the air conditioning unit, thereby reducing the operating energy consumption of the air conditioning unit, avoiding energy waste, and improving the heat exchange stability of the air conditioning unit. In turn, it improves the heat exchange performance and energy efficiency of the air conditioning unit, achieving the goal of energy saving and environmental protection.

[0056] When step S13 is determined not to be satisfied At that time, that is If so, proceed to step S15 to determine whether the condition is met. If so, proceed to step S16; otherwise, proceed to step S17. Wherein, Second preset temperature difference.

[0057] Specifically, the second preset temperature difference in this embodiment The temperature is 3℃.

[0058] When step S15 determines that the condition is met At that time, that is At that time, it can reflect the outlet temperature of the outdoor heat exchanger 13. outdoor ambient temperature A large difference indicates that the outdoor heat exchanger 13 is currently in a medium-efficiency heat exchange state, and its heat exchange efficiency is generally low. Therefore, the main objective is to improve the heat exchange performance of the outdoor heat exchanger 13, thereby executing step S16 to increase the operating speed of the outdoor fan 12 from the fifth speed threshold to the fifth speed. For example, the fifth speed threshold is 20 r / min, thereby controlling the operating speed of the outdoor fan 12 to increase from 20 r / min to the fifth speed. The system is operated to enhance the heat exchange capacity of the outdoor heat exchanger 13, enabling the outdoor heat exchanger 13 to quickly reach a high-efficiency heat exchange state.

[0059] When step S15 is determined not to be satisfied If so, proceed to step S17 to determine if the condition is met. ,Right now It can reflect the outlet temperature of the outdoor heat exchanger 13. outdoor ambient temperature The large difference indicates that the outdoor heat exchanger 13 is currently in an inefficient heat exchange state, with low and poor heat exchange efficiency. Therefore, the main objective is to improve the heat exchange performance of the outdoor heat exchanger 13, thereby executing step S18 to increase the operating speed of the outdoor fan 12 from the sixth speed threshold to the sixth speed. Specifically, in this embodiment, the sixth speed threshold is greater than the fifth speed threshold. For example, the sixth speed threshold is 50 r / min, thereby controlling the operating speed of the outdoor fan 12 to increase from 50 r / min to the sixth speed. The system is operated to enhance the heat exchange capacity of the outdoor heat exchanger 13, enabling the outdoor heat exchanger 13 to quickly reach a high-efficiency heat exchange state.

[0060] Therefore, the air conditioner outdoor fan control method in this embodiment can also improve the heat exchange capacity of the outdoor heat exchanger 13 by rapidly increasing the operating speed of the outdoor fan 12, so that the outdoor heat exchanger 13 can quickly reach a high-efficiency heat exchange state.

[0061] Air conditioning example: The air conditioner in this embodiment includes an indoor unit and an outdoor unit 10 with a circuit board. The circuit board is equipped with a processor and a memory. The memory stores a computer program that can run on the processor. When the processor executes the computer program, it implements each step of the above-mentioned air conditioner outdoor fan control method.

[0062] For example, a computer program can be divided into one or more modules, one or more of which are stored in memory and executed by a processor 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 a specific function, which describe the execution process of the computer program in a terminal device.

[0063] The processor 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. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of an electrical appliance, connecting all parts of the appliance through various interfaces and lines.

[0064] Memory can be used to store computer programs and / or modules. The processor implements various functions of an electrical appliance by running or executing the computer programs and / or modules stored in the memory, and by accessing data stored in the memory. Memory can mainly include a program storage area and a data storage area. The program storage area can store the operating system, at least one application program required for a function, etc.; the data storage area can store data created based on the use of the electrical appliance, etc. Furthermore, memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, smart media cards (SMC), secure digital cards (SD cards), flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0065] Examples of computer-readable storage media: If the computer program stored in the air conditioner's memory 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 methods of the above 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 a processor, it can implement the various steps of the above-described air conditioner outdoor fan control method.

[0066] 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.

[0067] 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 method for controlling an outdoor fan of an air conditioner, characterized in that, include: Control the air conditioner to operate in a preset cooling mode; Obtain the outlet temperature of the outdoor heat exchanger And obtain the outdoor ambient temperature ; when At that time, the operating speed of the outdoor fan is increased from the first speed threshold to the first speed. And execute the first energy-saving adjustment operation, or control the operating speed of the outdoor fan to decrease to the second speed threshold. And execute the second energy-saving adjustment operation; in, The first preset temperature difference is greater than 0℃.

2. The air conditioner outdoor fan control method according to claim 1, characterized in that: The first energy-saving adjustment operation includes: when When this happens, the operating speed of the outdoor fan is controlled to decrease to a third speed according to a first preset rule. until satisfied Then control the outdoor fan to maintain the third speed. run; in, The first operating power of the air conditioner is defined as the operating speed of the outdoor fan before it increases by the first speed threshold. The second operating power of the air conditioner is the result of increasing the operating speed of the outdoor fan by the first speed threshold. The third operating power of the air conditioner is the result of the outdoor fan's operating speed decreasing according to the first preset rule. This is the preset power difference value.

3. The air conditioner outdoor fan control method according to claim 2, characterized in that: The first preset rule includes: the reduction speed threshold for controlling the reduction of the operating speed of the outdoor fan gradually decreases as the number of reductions in the operating speed of the outdoor fan increases; The reduction frequency threshold at the first time is greater than the first speed threshold.

4. The air conditioner outdoor fan control method according to claim 2, characterized in that: The first energy-saving adjustment operation also includes: when When this is the case, the operating speed of the outdoor fan is controlled to the first speed. run.

5. The air conditioner outdoor fan control method according to claim 1, characterized in that: The second energy-saving adjustment operation includes: when When this happens, the operating speed of the outdoor fan is controlled to increase to a fourth speed according to a second preset rule. until satisfied Then control the outdoor fan to maintain the fourth speed. run; in, The first operating power of the air conditioner is defined as the operating speed of the outdoor fan before it decreases by the second speed threshold. The second operating power of the air conditioner is the result of reducing the operating speed of the outdoor fan by the second speed threshold. The third operating power of the air conditioner is the result of increasing the operating speed of the outdoor fan according to the second preset law. This is the preset power difference value.

6. The air conditioner outdoor fan control method according to claim 5, characterized in that: The second preset rule includes: the threshold for increasing the operating speed of the outdoor fan gradually decreases as the number of increases in the operating speed of the outdoor fan increases; The number of increases is such that the increase speed threshold at the first time is greater than the second speed threshold.

7. The air conditioner outdoor fan control method according to claim 5, characterized in that: The second energy-saving adjustment operation also includes: when When this is the case, the operating speed of the outdoor fan is controlled to the second speed. run.

8. The air conditioner outdoor fan control method according to any one of claims 1 to 7, characterized in that: when When this occurs, the operating speed of the outdoor fan is increased to the fifth speed threshold. run; in, Second preset temperature difference.

9. The air conditioner outdoor fan control method according to claim 8, characterized in that: when When this occurs, the operating speed of the outdoor fan is increased to the sixth speed threshold. run; The sixth speed threshold is greater than the fifth speed threshold.

10. An air conditioner, characterized in that, The system includes an indoor unit and an outdoor unit with circuit boards. The circuit boards are equipped with a processor and a memory. The memory stores a computer program. When the computer program is executed by the processor, it implements each step of the air conditioner outdoor fan 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 air conditioner outdoor fan control method according to any one of claims 1 to 9.

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