Control method and device of outdoor unit, air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method of an outdoor unit, the outdoor unit comprising a heat exchanger, the control method comprising the following steps: acquiring a displacement amount of the heat exchanger; determining an operation parameter corresponding to the displacement amount according to the displacement amount; and controlling the outdoor unit to operate according to the operation parameter. The control method of the outdoor unit provided by the application can determine the vibration amplitude of the heat exchanger according to the displacement amount of the heat exchanger by acquiring the displacement amount of the heat exchanger. According to the determined vibration amplitude of the heat exchanger, the operation parameter of the outdoor unit corresponding to the vibration amplitude is determined, and the outdoor unit is controlled to operate according to the operation parameter, so that the operation parameter of the outdoor unit can be adjusted to reduce the vibration amplitude of the heat exchanger, and the damage to the heat exchanger caused by the vibration amplitude is reduced. In this way, the stability of the operation of the outdoor unit is improved, and the service life of the outdoor unit is prolonged. The application further discloses a control device of an outdoor unit and an air conditioner.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as control methods and devices for outdoor units and air conditioners. Background Technology

[0002] Currently, outdoor units are often installed with uneven foundations and insufficient fixation. Additionally, the vibration increases as the outdoor unit operates for extended periods, creating a need to control the operating status of the outdoor unit.

[0003] The related technology discloses a noise reduction control method for an air conditioner, which includes: reducing the amount of vibration displacement by adjusting the speed of the compressor, thereby reducing noise.

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

[0005] The technical solutions disclosed in the relevant technologies reduce the operating noise of the outdoor unit by adjusting the compressor speed. However, they cannot solve the problem of the impact of long-term operation on the outdoor unit's operating status, thereby reducing the stability of the outdoor unit's operation.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a control method and device for an outdoor unit, as well as an air conditioner, to improve the stability of the outdoor unit's operating status.

[0009] In some embodiments, the control method for the outdoor unit includes: acquiring the displacement of the heat exchanger; determining operating parameters corresponding to the displacement based on the displacement; and controlling the operation of the outdoor unit based on the operating parameters.

[0010] In some embodiments, the control device for the outdoor unit includes a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for the outdoor unit as described in the above embodiments when the program instructions are executed.

[0011] In some embodiments, the air conditioner includes: an air conditioner body; and a control device for an outdoor unit as described in the above embodiments, which is installed on the air conditioner body.

[0012] The outdoor unit control method and device, and air conditioner provided in this disclosure can achieve the following technical effects:

[0013] The outdoor unit control method disclosed herein acquires the displacement of the heat exchanger and determines its vibration amplitude based on this displacement. Based on the determined vibration amplitude, the operating parameters of the outdoor unit corresponding to the vibration amplitude are determined, and the outdoor unit is controlled according to these parameters. This allows for adjustment of the outdoor unit's operating parameters to reduce the vibration amplitude of the heat exchanger, thereby reducing damage to the heat exchanger. This improves the stability of the outdoor unit's operation and extends its service life.

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

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

[0016] Figure 1 This is a schematic diagram of the structure of an outdoor unit provided in one embodiment of this disclosure;

[0017] Figure 2 yes Figure 1 The schematic diagram of the heat exchanger provided in the embodiment shown is as follows;

[0018] Figure 3 yes Figure 2 An enlarged schematic diagram of heat exchanger A provided in the illustrated embodiment;

[0019] Figure 4 yes Figure 1 A partial structural diagram of the outdoor unit provided in the illustrated embodiment;

[0020] Figure 5 This is a schematic flowchart of an outdoor unit control method provided in one embodiment of the present disclosure;

[0021] Figure 6 This is a flowchart illustrating a control method for an outdoor unit provided in another embodiment of this disclosure;

[0022] Figure 7 This is a flowchart illustrating a control method for an outdoor unit provided in yet another embodiment of this disclosure;

[0023] Figure 8 This is a flowchart illustrating a control method for an outdoor unit provided in yet another embodiment of this disclosure;

[0024] Figure 9 This is a flowchart illustrating a control method for an outdoor unit provided in yet another embodiment of this disclosure;

[0025] Figure 10 This is a flowchart illustrating a control method for an outdoor unit provided in yet another embodiment of this disclosure;

[0026] Figure 11 This is a structural block diagram of the control device for an outdoor unit provided in one embodiment of the present disclosure.

[0027] Figure label:

[0028] 1. Outdoor unit;

[0029] 110. Outer shell; 112. Chassis; 120. Heat exchanger; 122. Copper tube; 124. Tube sheet; 126. Tube sheet hole; 130. Fan; 132. Fan bracket; 150. First sensor; 152. Second sensor; 153. Third sensor; 154. Fourth sensor;

[0030] 20. Control device; 200. Processor; 201. Memory; 202. Communication interface; 203. Bus. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0037] In some embodiments, such as Figures 1 to 4 As shown, an outdoor unit 1 is provided. The outdoor unit 1 includes a housing 110, a fan 130, a compressor, and a heat exchanger 120. The fan 130, the compressor, and the heat exchanger 120 are disposed within the housing 110 of the outdoor unit 1.

[0038] Furthermore, the fan 130 is mounted on the housing 110 via the fan bracket 132. The compressor is mounted on the chassis 112 of the housing 110. The heat exchanger 120 is connected to the fan bracket 132 and the chassis 112. The fan bracket 132 and the chassis 112 are located on opposite sides of the heat exchanger 120.

[0039] Optionally, such as Figure 2 and Figure 3 As shown, the heat exchanger 120 includes copper tubes 122, fins, tube sheet holes 126, and a tube sheet 124. The copper tubes 122 are inserted into the fins. The tube sheet 124 is located at both ends, and the copper tubes 122 pass through the tube sheet holes 126 of the tube sheet 124. The heat exchanger 120 is connected to the fan bracket 132 and the outer casing 110 through the tube sheet 124.

[0040] Optionally, such as Figure 4 As shown, the outdoor unit 1 also includes displacement sensors mounted on the tube sheet 124. These displacement sensors include a first sensor 150, a second sensor 152, a third sensor 153, and a fourth sensor 154. The first sensor 150 and the second sensor 152 are mounted on the tube sheet 124 located on the fan 130 side and are used to detect the vibration displacement of the heat exchanger 120 on the fan 130 side. The third sensor 153 and the fourth sensor 154 are mounted on the tube sheet 124 located on the compressor side and are used to detect the vibration displacement of the heat exchanger 120 on the compressor side.

[0041] In some embodiments, an outdoor unit control device is provided, including: a processor and a memory storing program instructions, the processor being configured to execute the outdoor unit control method as described in the above embodiments when the program instructions are executed.

[0042] Combination Figures 1 to 4 The outdoor unit 1 shown, in some embodiments, is combined with Figure 5 As shown, a control method for an outdoor unit is provided, including:

[0043] S501, the processor obtains the displacement of the heat exchanger.

[0044] The displacement of the heat exchanger is detected by a displacement sensor.

[0045] S502, the processor determines the operating parameters corresponding to the displacement based on the displacement amount.

[0046] The S503 processor controls the operation of the outdoor unit based on the operating parameters.

[0047] The outdoor unit control method disclosed herein obtains the displacement of the heat exchanger 120 and determines the vibration amplitude of the heat exchanger 120 based on the displacement. Based on the determined vibration amplitude of the heat exchanger 120, operating parameters of the outdoor unit 1 corresponding to the vibration amplitude are determined, and the outdoor unit 1 is controlled to operate according to the operating parameters. By adjusting the operating parameters of the outdoor unit 1, the vibration amplitude of the heat exchanger 120 can be reduced, thereby reducing damage to the heat exchanger 120. This improves the operational stability of the outdoor unit 1 and extends its service life.

[0048] In related technologies, the installation of outdoor air conditioning units often suffers from problems such as unbalanced foundations and insufficient fixing, resulting in overall unit imbalance. Simultaneously, the dynamic balance of power components such as the fan and compressor in the outdoor unit increases over time, leading to increased vibration. This vibration, caused by the fan's imbalance, is transmitted to the tube sheet 124 of the heat exchanger 120. The tube sheet 124, being a sheet metal component with high hardness, and the copper tubes 122, being softer, can wear down and break under prolonged vibration and friction. This can cause refrigerant leakage, rendering the unit malfunction, and in more serious cases, posing a risk of refrigerant ignition and explosion, resulting in significant safety accidents and property damage.

[0049] By adopting the outdoor unit control method provided in this disclosure, the displacement of the heat exchanger 120 is obtained, and the vibration amplitude of the heat exchanger 120 is determined based on the displacement. By adjusting the operating parameters of the outdoor unit 1, the vibration impact of the power source components on the heat exchanger 120 is reduced, thereby adjusting the vibration amplitude of the heat exchanger 120, reducing the damage rate of the heat exchanger 120, and improving the stability of the outdoor unit 1 operation.

[0050] Combination Figures 1 to 4 The outdoor unit 1 shown, in some embodiments, is combined with Figure 6 As shown, a control method for an outdoor unit is provided, including:

[0051] S601, the processor obtains the displacement of the heat exchanger.

[0052] The displacement of the heat exchanger is detected by a displacement sensor.

[0053] S602, the processor determines the preset displacement range in which the displacement is located based on the displacement amount.

[0054] S603, the processor obtains the operating parameters corresponding to the preset displacement range.

[0055] The S604 processor controls the operation of the outdoor unit based on the operating parameters.

[0056] In this embodiment, the processor 200 has multiple preset displacement ranges, each with corresponding operating parameters. Thus, multiple preset displacement ranges correspond to multiple operating parameters. By setting operating parameters that match the preset displacement ranges, the vibration amplitude of the heat exchanger 120 can be adjusted, improving adjustment efficiency and accuracy.

[0057] Specifically, the obtained displacement of the heat exchanger 120 is compared with multiple preset displacement ranges to determine the preset displacement range in which the heat exchanger 120's displacement falls, and the operating parameters corresponding to the preset displacement range in which the heat exchanger 120's displacement falls are obtained. The outdoor unit 1 is then controlled to operate according to the obtained preset parameters, reducing the vibration and impact of the power source components on the heat exchanger 120, thereby reducing the vibration amplitude of the heat exchanger 120 and thus reducing damage to the heat exchanger 120.

[0058] Combination Figures 1 to 4 The outdoor unit 1 shown, in some embodiments, is combined with Figure 7 As shown, a control method for an outdoor unit is provided. The outdoor unit 1 includes a compressor, and the control method includes:

[0059] S701, the processor obtains the displacement of the heat exchanger.

[0060] The displacement of the heat exchanger on the compressor side is detected by a displacement sensor.

[0061] S702, the processor determines the preset displacement range in which the displacement is located based on the displacement amount.

[0062] S703, when the displacement is within the first preset range, the processor controls the compressor to maintain the current state of operation.

[0063] S704, when the displacement is within the second preset range, the processor adjusts the operating frequency of the compressor.

[0064] In this embodiment, one of the vibrational forces causing the heat exchanger 120 to vibrate comes from the vibration generated during the operation of the compressor. By acquiring the displacement of the heat exchanger 120 on the side of the compressor, the vibrational impact of the compressor on the heat exchanger 120 is analyzed, and based on the detected displacement, an adjustment strategy for the compressor's operating parameters is determined to reduce the impact on the heat exchanger 120.

[0065] Specifically, when the displacement is within the first preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. Therefore, the operating parameters corresponding to the first preset range remain unchanged, and the compressor continues to operate at its current operating frequency. When the displacement is within the second preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is large, and continued operation may lead to damage to the heat exchanger 120. The operating parameters corresponding to the second preset range are adjusted by changing the compressor's operating frequency. By adjusting the compressor's operating frequency, the vibration amplitude of the heat exchanger 120 is reduced, decreasing the vibration impact of the power source components on the heat exchanger, thereby reducing the risk of damage to the heat exchanger 120 and improving the operational stability of the outdoor unit 1.

[0066] Combination Figures 1 to 4 The outdoor unit 1 shown, in some embodiments, is combined with Figure 8 As shown, a control method for an outdoor unit is provided. The outdoor unit 1 includes a fan 130, and the control method includes:

[0067] S801, the processor obtains the displacement of the heat exchanger.

[0068] The displacement of the heat exchanger on the fan side is detected by a displacement sensor.

[0069] S802, the processor determines the preset displacement range in which the displacement is located based on the displacement amount.

[0070] S803, when the displacement is within the first preset range, the processor controls the fan to maintain the current operation.

[0071] S804, when the displacement is within the second preset range, the processor adjusts the fan speed.

[0072] In this embodiment, one of the vibrational forces causing the heat exchanger 120 to vibrate comes from the vibration generated during the operation of the fan 130. By acquiring the displacement of the heat exchanger 120 on one side of the fan 130, the vibrational impact of the fan 130 on the heat exchanger 120 is analyzed, and based on the detected displacement, an adjustment strategy for the operating parameters of the fan 130 is determined to reduce the impact on the heat exchanger 120.

[0073] Specifically, when the displacement is within the first preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. Therefore, the operating parameters corresponding to the first preset range are that the operating parameters of the fan 130 remain unchanged. Thus, the fan 130 is controlled to maintain its current speed and continue operating. When the displacement is within the second preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is large, and continued operation may lead to damage to the heat exchanger 120. The operating parameters corresponding to the second preset range are that the speed of the fan 130 is adjusted. By adjusting the speed of the fan 130, the vibration impact of the power source components on the heat exchanger is reduced, thereby reducing the vibration amplitude of the heat exchanger 120, reducing the risk of damage to the heat exchanger 120, and thus improving the operational stability of the outdoor unit 1.

[0074] Combination Figures 1 to 4 The outdoor unit 1 shown, in some embodiments, is combined with Figure 9 As shown, a control method for an outdoor unit is provided. The outdoor unit 1 includes a compressor and a fan 130. The control method includes:

[0075] S901, the processor obtains the first displacement of the heat exchanger on the compressor side and the second displacement of the heat exchanger on the fan side.

[0076] S902, the processor calculates the average of the first displacement and the second displacement as the displacement.

[0077] S903, the processor determines the preset displacement range in which the displacement is located based on the displacement amount.

[0078] S904, when the displacement is within the first preset range, the processor controls both the compressor and the fan to maintain their current operation.

[0079] S905, when the displacement is within the second preset range, the processor adjusts the compressor's operating frequency to regulate the fan speed.

[0080] In this embodiment, in the overall structure of the outdoor unit 1 of the air conditioner, the bottom of the heat exchanger 120 is fixedly connected to the chassis 112, and the chassis 112 is fixedly connected to the compressor. The vibration and impact during compressor startup are transmitted to the heat exchanger 120 through the chassis 112. The higher the operating frequency, the greater the output impact force. If the compressor malfunctions, causing the operational impact to further amplify, the vibration and impact force received by the heat exchanger 120 will be greater, resulting in vibration displacement of the heat exchanger 120. The top of the heat exchanger 120 is connected to the motor bracket, and the motor bracket is fixedly connected to the fan 130. When the fan 130 rotates, it generates rotational force, unbalanced force, and other impact forces, which are also transmitted to the heat exchanger 120, causing impact force on the heat exchanger 120. This embodiment monitors the displacement of the heat exchanger 120 on both sides of the compressor and fan 130 to control the impact force generated by these two power sources, thereby reducing the impact force on the heat exchanger 120 and preventing large vibrations and displacements that could cause damage.

[0081] Specifically, the first and second displacements on both sides of the heat exchanger 120 are simultaneously acquired. The average of the first and second displacements is calculated as the displacement. Based on the displacement, the compressor and fan 130 are adjusted to reduce the vibration amplitude of the heat exchanger 120.

[0082] When the displacement is within the first preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. Therefore, the operating parameters corresponding to the first preset range are that the operating parameters of the compressor and fan 130 remain unchanged. In this way, the compressor and fan 130 are controlled to maintain their current state and continue operating. When the displacement is within the second preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is large, and continued operation may lead to damage to the heat exchanger 120. The operating parameters corresponding to the second preset range are that the operating frequency of the compressor and the speed of the fan 130 are adjusted. By adjusting the operating frequency of the compressor and the speed of the fan 130, the vibration impact of the power source components on the heat exchanger is reduced, thereby reducing the vibration amplitude of the heat exchanger 120, reducing the risk of damage to the heat exchanger 120, and thus improving the operational stability of the outdoor unit 1.

[0083] Optionally, the step of the processor 200 adjusting the operating frequency of the compressor includes: the processor 200 periodically controlling the compressor to increase the operating frequency; when the operating frequency increases to a preset operating frequency and the displacement is within a second preset range, the processor 200 periodically controlling the compressor to decrease the operating frequency.

[0084] In this embodiment, directly reducing the compressor's operating frequency during operation would decrease the air conditioner's cooling / heating efficiency, thus affecting the user experience. Therefore, in adjusting the compressor's operating frequency, the operating frequency is first increased periodically to reduce the impact on the compressor's operation and the air conditioner's cooling or heating status. When the compressor's operating frequency reaches a preset frequency, if the displacement is still within the second preset range, it indicates that the vibration amplitude of the heat exchanger 120 has not decreased, and the compressor's operating frequency is then periodically reduced. By gradually reducing the compressor's operating frequency, the vibration amplitude of the heat exchanger 120 is reduced. This allows for compressor control while ensuring a good user experience, improving the stability of the outdoor unit 1's operation.

[0085] Optionally, the preset operating frequency is equal to the sum of the compressor's current operating frequency and a frequency threshold. The frequency threshold ranges from 3Hz to 8Hz. By setting the upper limit of the compressor's frequency, excessively high operating frequencies can be avoided, preventing damage to the compressor.

[0086] Optionally, the step of periodically controlling the compressor to increase its operating frequency includes: periodically increasing the compressor frequency by 1Hz each time until the operating frequency reaches the preset operating frequency. This achieves a gradual increase in the compressor frequency, improving the stability of both the compressor and the air conditioner's operation.

[0087] Optionally, the step of periodically controlling the compressor to reduce its operating frequency includes: periodically reducing the compressor frequency by 1Hz each time until the displacement is within a first preset range. This reduces the vibration amplitude of the heat exchanger 120 and enhances its protective effect.

[0088] Optionally, the step of the processor 200 adjusting the speed of the fan 130 includes: the processor 200 periodically controlling the fan 130 to increase its speed; when the speed increases to a preset speed and the displacement is within a second preset range, the processor 200 periodically controlling the fan 130 to decrease its speed.

[0089] In this embodiment, directly reducing the speed of the fan 130 during operation would decrease the cooling / heating efficiency of the air conditioner, thus affecting the user experience. Therefore, in adjusting the speed of the fan 130, the speed is first gradually increased by periodically controlling the fan 130 to reduce the impact on the operation of the fan 130 and the cooling or heating status of the air conditioner. When the speed of the fan 130 increases to a preset speed, if the displacement is still within the second preset range, it indicates that the vibration amplitude of the heat exchanger 120 has not decreased, and the fan 130 speed is then periodically reduced. By gradually reducing the speed of the fan 130, the vibration amplitude of the heat exchanger 120 is reduced. This allows for control of the fan 130 while ensuring the user experience, improving the stability of the outdoor unit 1's operation.

[0090] Optionally, the preset speed is equal to the sum of the current speed of the fan 130 and a speed threshold. The speed threshold ranges from 40 rpm to 60 rpm. By setting the upper limit of the fan 130's frequency, the impact on heating or cooling performance is reduced.

[0091] Optionally, the step of periodically controlling the fan 130 to increase its speed includes: periodically increasing the fan 130 speed by 10 rpm each time until the speed reaches the preset speed. This achieves a gradual increase in the fan 130 speed, improving the stability of both the fan 130 and the air conditioner's operation.

[0092] Optionally, the step of periodically controlling the fan 130 to reduce its speed includes: periodically reducing the fan 130 speed by 10 rpm each time until the displacement is within a first preset range. This reduces the vibration amplitude of the heat exchanger 120 and enhances its protective effect.

[0093] Optionally, if the displacement is within a second preset range and the duration reaches a first preset duration, the processor 200 issues a prompt message. If the displacement is within a third preset range and the duration reaches a second preset duration, the processor 200 controls the outdoor unit 1 to shut down. The upper limit of the first preset range is less than or equal to the lower limit of the second preset range, and the upper limit of the second preset range is less than or equal to the lower limit of the third preset range.

[0094] In this embodiment, when the displacement is within the second preset range, it indicates that the current vibration amplitude of the heat exchanger 120 is large, and if it continues, there is a risk of damage to the heat exchanger 120. If the duration reaches the first preset duration, the processor 200 issues a prompt message, which can promptly notify after-sales personnel to carry out maintenance and improve the stability of the outdoor unit 1.

[0095] The value in the third preset range is greater than the second preset range. When the displacement is within the third preset range, it indicates that the vibration amplitude of the heat exchanger 120 is already very large. If this continues, there is a risk of damage to the outdoor unit 1, and in more serious cases, there is a risk of refrigerant ignition and explosion, causing a major safety accident and property damage. If the duration reaches the second preset duration, the processor 200 controls the outdoor unit 1 to shut down, awaiting after-sales personnel for inspection, reducing the probability of an accident.

[0096] Optionally, the first preset range is less than or equal to L1, where L1 ranges from 1.3mm to 1.7mm. The second preset range is greater than L1 and less than or equal to L2, where L2 ranges from 2.8mm to 3.2mm. The third preset range is greater than L2. The first preset duration T1 ranges from 10min to 35min. The second preset duration T2 ranges from 10min to 30min.

[0097] Optionally, L1 can be 1.3mm, 1.5mm, or 1.7mm. L2 can be 2.8mm, 3.0mm, or 3.2mm. T1 can be 10min, 20min, or 35min. T2 can be 10min, 20min, or 30min.

[0098] By further defining the preset range, after obtaining the displacement of the heat exchanger 120, the vibration impact caused by the heat exchanger 120 can be analyzed more accurately, and based on the detected displacement, the adjustment strategy for the operating parameters of the compressor and fan 130 can be determined to reduce the impact on the heat exchanger 120.

[0099] Optionally, the first preset range includes a first sub-range and a second sub-range. The first sub-range is less than or equal to 1 mm; the second sub-range is greater than 1 mm and less than or equal to L1. Specifically, when the displacement is within the first sub-range, the compressor and fan 130 are controlled to maintain their current operation; when the displacement is within the second sub-range, the compressor and fan 130 are controlled to maintain their current operation while simultaneously activating the warning function.

[0100] In this embodiment, by setting a first sub-range and a second sub-range, the detection range of displacement is further refined, which can issue warning information more promptly, inform users of possible abnormalities, and remind users to deal with them in a timely manner, so as to improve the stability of outdoor unit 1 operation.

[0101] Optionally, the air conditioner includes a warning device. The warning device includes a horn alarm and a red indicator light. In one embodiment, the warning device is located inside the air conditioner's wired controller in the room, displaying a warning message indicating abnormal operation of the chassis 112 of the outdoor unit 1. In another embodiment, the warning device is located inside the electrical control box of the outdoor unit, integrated into the display panel, and displays the warning via an indicator light. In yet another embodiment, notifications can be sent to monitoring personnel or after-sales personnel via the air conditioner's corresponding APP push notification or SMS. To clearly understand the outdoor unit control method described in the above embodiments, the application scenarios of this invention are described in detail below.

[0102] like Figure 10 As shown, an example illustrates a specific control method for the outdoor unit 1 of an air conditioner during operation. This method includes:

[0103] S1001, the processor obtains the first displacement of the heat exchanger on the compressor side and the second displacement of the heat exchanger on the fan side.

[0104] S1002, the processor calculates the average of the first and second displacements, and uses this average as the displacement, setting the displacement as L. x .

[0105] S1003, the processor according to L x Determine L x The preset displacement range.

[0106] S1004, when L x When the thickness is ≤1mm, the processor controls both the compressor and the fan to maintain their current operation.

[0107] S1005, when 1mm < L x When the vibration level is ≤1.5mm and continues for 30 minutes, the processor controls both the compressor and fan to maintain their current operation while activating the warning function. At this time, the corresponding vibration abnormality warning will be displayed on the indoor wired controller screen, and both the outdoor unit and the backend will issue warnings for the corresponding chassis detection area's operational abnormality. The yellow warning light inside the outdoor unit's electrical control box will illuminate.

[0108] S1006, when 1.5mm < L x When the thickness is ≤3.0mm, and after 30 minutes, the processor periodically adjusts the compressor's operating frequency and the fan's speed, while simultaneously issuing a prompt message to notify after-sales personnel to conduct on-site testing. Specifically, the processor controls the compressor to first increase and then decrease its frequency, with a maximum frequency limit of the current operating frequency + 5Hz. The processor controls the fan to first increase and then decrease its speed, with a maximum speed limit of the current speed + 50rpm.

[0109] For example, if the compressor's current operating frequency is 100Hz, then the preset operating frequency for the compressor is 105Hz; if the fan's current speed is 800rpm, then the preset fan speed is 850rpm. When 1.5mm < L x When the displacement is ≤3.0mm, and after 30 minutes, the processor periodically controls the compressor frequency to increase to 105Hz and periodically controls the fan speed to increase to 850rpm; if the displacement is still 1.5mm < L x ≤3.0mm, the processor controls the compressor to reduce the frequency and controls the fan to reduce the speed until L. x Stop at ≤1mm.

[0110] S1007, when L x If the thickness exceeds 3.0mm and continues for 30 minutes, the outdoor unit will be shut down. Simultaneously, the processor will issue an immediate repair command, and after-sales personnel will conduct on-site testing and repair to ensure the machine is properly repaired. After a reset and power-on operation, the machine can operate normally.

[0111] Combination Figure 11 As shown, this embodiment of the disclosure provides a control device 20 for an outdoor unit, including a processor 200 and a memory 201. Optionally, the device may further include a communication interface 202 and a bus 203. The processor 200, communication interface 202, and memory 201 can communicate with each other via the bus 203. The communication interface 202 can be used for information transmission. The processor 200 can call logical instructions in the memory 201 to execute the control method for the outdoor unit described in the above embodiment.

[0112] Furthermore, the logic instructions in the aforementioned memory 201 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0113] The memory 201, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 200 executes functional applications and data processing by running the program instructions / modules stored in the memory 201, thereby implementing the control method for the outdoor unit in the above embodiments. Therefore, it possesses all the beneficial effects of the above embodiments, which will not be elaborated further here.

[0114] The memory 201 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 201 may include high-speed random access memory and may also include non-volatile memory.

[0115] This disclosure provides an air conditioner, including: an air conditioner body; and the aforementioned control device for the outdoor unit. The control device for the outdoor unit is installed in the air conditioner body. The installation relationship described herein is not limited to placement inside the air conditioner body, but also includes installation connections with other components of the air conditioner, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the control device for the outdoor unit can be adapted to any feasible air conditioner body, thereby realizing other feasible embodiments.

[0116] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the aforementioned outdoor unit control method.

[0117] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0118] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0119] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0120] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for an outdoor unit, characterized in that, The outdoor unit includes a heat exchanger, a compressor, a fan, and a displacement sensor. The fan is mounted on the outer casing via a fan bracket, and the compressor is mounted on the chassis of the outer casing. The heat exchanger is connected to the fan bracket and the chassis. The fan bracket and chassis are located on opposite sides of the heat exchanger. The heat exchanger includes copper tubes, fins, tube sheet holes, and a tube sheet. The heat exchanger is connected to the fan bracket and the outer casing via the tube sheet. The displacement sensor is located on the tube sheet. The control method includes: Obtain the displacement of the heat exchanger; Based on the displacement, determine the corresponding operating parameters, including: determining the preset displacement range in which the displacement is located; and obtaining the operating parameters corresponding to the preset displacement range. Based on the operating parameters, the operation of the outdoor unit is controlled, including: when the displacement is within a first preset range, controlling both the compressor and the fan to maintain their current operation; when the displacement is within a second preset range, adjusting the operating frequency of the compressor and the speed of the fan; wherein, the displacement is the average of the first displacement of the heat exchanger on the compressor side and the second displacement of the heat exchanger on the fan side. The steps for adjusting the compressor's operating frequency include: periodically controlling the compressor to increase its operating frequency; and periodically controlling the compressor to decrease its operating frequency when the operating frequency increases to a preset operating frequency and the displacement is within a second preset range. The steps for adjusting the fan speed include: periodically controlling the fan speed to increase; and periodically controlling the fan speed to decrease when the speed increases to a preset speed and the displacement is within a second preset range.

2. The outdoor unit control method according to claim 1, characterized in that, If the displacement is within the second preset range and the duration reaches the first preset duration, a prompt message will be issued. If the displacement is within the third preset range and the duration reaches the second preset duration, control the outdoor unit to stop. Wherein, the upper limit of the first preset range is less than or equal to the lower limit of the second preset range, and the upper limit of the second preset range is less than or equal to the lower limit of the third preset range.

3. A control device for an outdoor unit, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the outdoor unit control method as described in claim 1 when running the program instructions.

4. An air conditioner, characterized in that, include: Air conditioner unit; The outdoor unit control device as described in claim 3 is installed on the air conditioner body.

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