Outdoor unit control method and device and air conditioner

Abstract

The invention relates to the technical field of intelligent household appliances, and discloses an outdoor unit control method, an outdoor unit comprises a heat exchanger, and the control method comprises the steps that the displacement of the heat exchanger is obtained; determining operation parameters corresponding to the displacement according to the displacement; and controlling the outdoor unit to operate according to the operating parameters. According to the control method of the outdoor unit, the displacement amount of the heat exchanger is obtained, and the vibration amplitude of the heat exchanger is determined according to the displacement amount of the heat exchanger. According to the determined vibration amplitude of the heat exchanger, the operation parameters, corresponding to the vibration amplitude, of the outdoor unit are determined, operation of the outdoor unit is controlled according to the operation parameters, then the operation parameters of the outdoor unit can be adjusted, the vibration amplitude of the heat exchanger can be reduced, and damage to the heat exchanger is reduced by reducing the vibration amplitude. Therefore, the operation stability of the outdoor unit is improved, and the service life of the outdoor unit is prolonged. The invention further discloses a control device of the outdoor unit and the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a control method and device for an outdoor unit, and an air conditioner. Background Art

[0002] At present, the outdoor unit is installed on an unbalanced foundation and is not sufficiently fixed. At the same time, as the outdoor unit runs for a long time, the vibration increases. There is a need to control the operating status of the outdoor unit.

[0003] The related art discloses a noise reduction control method for an air conditioner, comprising: reducing the vibration displacement by adjusting the rotation speed of the compressor to reduce the noise.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The technical solution disclosed in the related art reduces the operating noise of the outdoor unit by adjusting the speed of the compressor, but cannot solve the impact on the operating state of the outdoor unit caused by the long-term operation of the outdoor unit, thereby reducing the stability of the operation of the outdoor unit.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a control method and device for an outdoor unit, and an air conditioner to improve the stability of the operating state of the outdoor unit.

[0009] In some embodiments, the control method of the outdoor unit includes: obtaining a displacement of the heat exchanger; determining an operating parameter corresponding to the displacement according to the displacement; and controlling the operation of the outdoor unit according to the operating parameter.

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

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

[0012] The control method and device of the outdoor unit and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] The control method of the outdoor unit provided by the present disclosure obtains the displacement of the heat exchanger to determine the vibration amplitude of the heat exchanger according to the displacement of the heat exchanger. According to the determined vibration amplitude of the heat exchanger, the operating parameters of the outdoor unit corresponding to the vibration amplitude are determined, and the operation of the outdoor unit is controlled according to the operating parameters, so that the operating parameters of the outdoor unit can be adjusted to reduce the vibration amplitude of the heat exchanger, and then by reducing the vibration amplitude, the damage to the heat exchanger 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 extended.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1 is a structural schematic diagram of an outdoor unit provided by an embodiment of the present disclosure;

[0017] Figure 2 yes Figure 1 A schematic structural diagram of a heat exchanger provided in the illustrated embodiment;

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

[0019] Figure 4 yes Figure 1 A schematic diagram of a portion of the structure of an outdoor unit provided in the illustrated embodiment;

[0020] Figure 5 is a flow chart of a control method for an outdoor unit provided by an embodiment of the present disclosure;

[0021] Figure 6 is a flow chart of a control method of an outdoor unit provided by another embodiment of the present disclosure;

[0022] Figure 7 is a flow chart of a control method for an outdoor unit provided by another embodiment of the present disclosure;

[0023] Figure 8 is a flow chart of a control method for an outdoor unit provided by another embodiment of the present disclosure;

[0024] Fig. 9 is a flow chart of a control method for an outdoor unit provided by another embodiment of the present disclosure;

[0025] Fig.10 is a flow chart of a control method for an outdoor unit provided by another embodiment of the present disclosure;

[0026] Fig.11 It is a structural block diagram of a control device of an outdoor unit provided by an embodiment of the present disclosure.

[0027] Reference numerals:

[0028] 1. Outdoor unit;

[0029] 110, housing; 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 DESCRIPTION

[0031] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0032] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

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

[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0035] The term "and / or" is a description of the association relationship 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" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0037] In some embodiments, 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 arranged in the housing 110 of the outdoor unit 1.

[0038] Further, the fan 130 is mounted on the housing 110 via a 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, respectively.

[0039] Alternatively, if Figure 2 and Figure 3 As shown, the heat exchanger 120 includes a copper tube 122, a fin, a tube sheet hole 126 and a tube sheet 124. The copper tube 122 is inserted through the fin. The tube sheet 124 is located at both ends, and the copper tube 122 is inserted through the tube sheet hole 126 of the tube sheet 124. The heat exchanger 120 is connected to the fan bracket 132 and the housing 110 through the tube sheet 124.

[0040] Alternatively, if Figure 4 As shown, the outdoor unit 1 further includes a displacement sensor, which is arranged on the tube sheet 124. The displacement sensor includes 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 arranged on the tube sheet 124 on one side of the fan 130, and are used to detect the vibration displacement of the heat exchanger 120 on the side of the fan 130. The third sensor 153 and the fourth sensor 154 are arranged on the tube sheet 124 on one side of the compressor, and are used to detect the vibration displacement of the heat exchanger 120 on the side of the compressor.

[0041] In some embodiments, a control device for an outdoor unit is provided, comprising: a processor and a memory storing program instructions, wherein the processor is configured to execute a control method for the outdoor unit as described in the above embodiment when running the program instructions.

[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, comprising:

[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 an operating parameter corresponding to the displacement amount according to the displacement amount.

[0046] S503: The processor controls the operation of the outdoor unit according to the operation parameters.

[0047] The control method of the outdoor unit provided by the present disclosure obtains the displacement of the heat exchanger 120 to determine the vibration amplitude of the heat exchanger 120 according to the displacement of the heat exchanger 120. According to the determined vibration amplitude of the heat exchanger 120, the operating parameters of the outdoor unit 1 corresponding to the vibration amplitude are determined, and the operation of the outdoor unit 1 is controlled according to the operating parameters, so that the vibration amplitude of the heat exchanger 120 can be reduced by adjusting the operating parameters of the outdoor unit 1, and the damage to the heat exchanger 120 can be reduced by reducing the vibration amplitude. In this way, the stability of the operation of the outdoor unit 1 is improved and the service life of the outdoor unit 1 is extended.

[0048] In the related art, the outdoor unit of the air conditioner has problems such as unbalanced installation foundation and insufficient installation fixation during installation, resulting in unbalanced installation of the whole unit. At the same time, the power components such as the fan and compressor of the outdoor unit of the air conditioner will have poor dynamic balance and increased vibration as the operation time increases. During the operation of the outdoor unit of the air conditioner, the vibration caused by the poor dynamic balance of the fan will be transmitted to the tube sheet 124 of the heat exchanger 120. The tube sheet 124 of the heat exchanger 120 and the copper tube 122 are matched. The tube sheet 124 is a sheet metal part with high hardness. The copper tube 122 is soft. After a long period of vibration and friction, the copper tube 122 will be worn and broken by the tube sheet 124, causing the system refrigerant to leak, and the whole unit cannot work normally. In more serious cases, there is a risk of ignition and explosion of the refrigerant, causing a large safety accident and property loss.

[0049] By adopting the control method of the outdoor unit provided in the present invention, the displacement of the heat exchanger 120 is obtained, and then the vibration amplitude of the heat exchanger 120 is determined according to 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, so as to adjust the vibration amplitude of the heat exchanger 120, thereby reducing the damage rate of the heat exchanger 120 and improving the operating stability of the outdoor unit 1.

[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, comprising:

[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 a preset displacement range in which the displacement is located according to the displacement.

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

[0055] S604: The processor controls the operation of the outdoor unit according to the operation parameters.

[0056] In this embodiment, a plurality of preset displacement ranges are preset in the processor 200, and each preset displacement range corresponds to an operating parameter matched thereto. In this way, a plurality of preset displacement ranges correspond to a plurality of operating parameters, and by respectively setting operating parameters matching the preset displacement ranges, the vibration amplitude of the heat exchanger 120 can be adjusted to improve the adjustment efficiency and accuracy.

[0057] Specifically, the displacement of the heat exchanger 120 obtained is compared with a plurality of preset displacement ranges, the preset displacement range of the displacement of the heat exchanger 120 is determined, and the operation parameters corresponding to the preset displacement range of the displacement of the heat exchanger 120 are obtained. The operation of the outdoor unit 1 is controlled according to the obtained preset parameters to reduce the vibration impact of the power source components on the heat exchanger 120, so as to reduce the vibration amplitude of the heat exchanger 120, thereby reducing the 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 a preset displacement range in which the displacement is located according to the displacement.

[0062] S703: When the displacement is within the first preset range, the processor controls the compressor to keep running in the current state.

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

[0064] In this embodiment, one of the vibration forces of the heat exchanger 120 is the vibration generated during the operation of the compressor. By obtaining the displacement of the heat exchanger 120 on one side of the compressor, the vibration effect of the compressor on the heat exchanger 120 is analyzed, and according to the detected displacement, the adjustment strategy of the operating parameters of the compressor is determined to reduce the impact on the heat exchanger 120.

[0065] Specifically, when the displacement is in the first preset range, it means that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. The operating parameter corresponding to the first preset range is that the operating parameter of the compressor remains unchanged. In this way, the compressor is controlled to maintain the current operating frequency unchanged and continue to operate. When the displacement is in the second preset range, it means that the current vibration amplitude of the heat exchanger 120 is large, and there is a risk of damage to the heat exchanger 120 if it continues. The operating parameter corresponding to the second preset range is to adjust the operating frequency of the compressor. By adjusting the operating frequency of the compressor, the vibration amplitude of the heat exchanger 120 is reduced, the vibration impact of the power source components on the heat exchanger is reduced, and the risk of damage to the heat exchanger 120 is reduced, thereby improving the stability of the operation 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 one side of the fan is detected by a displacement sensor.

[0069] S802: The processor determines a preset displacement range in which the displacement is located according to the displacement.

[0070] S803: When the displacement is within the first preset range, the processor controls the fan to keep running in the current state.

[0071] S804: When the displacement is within a second preset range, the processor adjusts the rotation speed of the fan.

[0072] In this embodiment, one vibration power of the heat exchanger 120 is the vibration generated during the operation of the fan 130. By obtaining the displacement of the heat exchanger 120 on one side of the fan 130, the vibration impact of the fan 130 on the heat exchanger 120 is analyzed, and according to the detected displacement, the adjustment strategy of the operating parameters of the fan 130 is determined to reduce the impact on the heat exchanger 120.

[0073] Specifically, when the displacement is in the first preset range, it means that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. The operating parameters corresponding to the first preset range are that the operating parameters of the fan 130 remain unchanged. In this way, the fan 130 is controlled to maintain the current speed unchanged and continue to operate. When the displacement is in the second preset range, it means that the current vibration amplitude of the heat exchanger 120 is large, and there is a risk of damage to the heat exchanger 120 if it continues. The operating parameter corresponding to the second preset range is to adjust the speed of the fan 130. By adjusting the speed of the fan 130, the vibration impact of the power source components on the heat exchanger is reduced, so as to reduce the vibration amplitude of the heat exchanger 120, thereby reducing the risk of damage to the heat exchanger 120, and thereby improving the stability of the operation of the outdoor unit 1.

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

[0075] S901: The processor obtains a first displacement of the heat exchanger located on a compressor side and a second displacement of the heat exchanger located on a fan side.

[0076] S902: The processor calculates an average value of the first displacement amount and the second displacement amount as the displacement amount.

[0077] S903: The processor determines a preset displacement range in which the displacement is located according to the displacement.

[0078] S904: When the displacement is within the first preset range, the processor controls the compressor and the fan to maintain the current operation state.

[0079] S905, when the displacement is within the second preset range, the processor adjusts the operating frequency of the compressor to adjust the rotation speed of the fan.

[0080] In this embodiment, in the overall structure of the air conditioner outdoor unit 1, 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 impact during the startup and operation of the compressor is transmitted to the heat exchanger 120 through the chassis 112. The higher the operating frequency, the greater the output impact force. If the compressor fails and the operation impact is further amplified, the vibration impact force received by the heat exchanger 120 will be large, and the vibration displacement of the heat exchanger 120 will be generated. The top of the heat exchanger 120 is connected to the motor bracket, and the motor bracket and the fan 130 are fixed together. When the fan 130 rotates, it will generate impact forces such as rotational force and unbalanced force, which will also be transmitted to the heat exchanger 120, causing the impact force on the heat exchanger 120. In this embodiment, the displacement of the heat exchanger 120 on both sides of the compressor and the fan 130 is monitored to control the impact force generated by these two power sources, thereby reducing the impact force on the heat exchanger 120 and avoiding large vibration and displacement of the heat exchanger 120, which causes damage.

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

[0082] When the displacement is in the first preset range, it means that the current vibration amplitude of the heat exchanger 120 is not large and will not cause damage to the heat exchanger 120. The operating parameters corresponding to the first preset range are that the operating parameters of the compressor and the fan 130 remain unchanged. In this way, the compressor and the fan 130 are controlled to maintain the current state and continue to operate. When the displacement is in the second preset range, it means that the current vibration amplitude of the heat exchanger 120 is large, and there is a risk of damage to the heat exchanger 120 if it continues. The operating parameters corresponding to the second preset range are adjusting the operating frequency of the compressor and the speed of the fan 130. By adjusting the operating frequency of the compressor and adjusting the speed of the fan 130, the vibration impact of the power source components on the heat exchanger is reduced, so as to reduce the vibration amplitude of the heat exchanger 120, thereby reducing the risk of damage to the heat exchanger 120, and thereby improving the stability of the operation of the outdoor unit 1.

[0083] Optionally, the step in which the processor 200 adjusts the operating frequency of the compressor includes: the processor 200 periodically controls 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 controls the compressor to reduce the operating frequency.

[0084] In this embodiment, during the operation of the compressor, directly reducing the operating frequency of the compressor will reduce the cooling / heating efficiency of the air conditioner, thereby affecting the user's experience. Therefore, in the step of adjusting the operating frequency of the compressor, the operating frequency is first increased by periodically controlling the compressor to increase the operating frequency, and the operating frequency is gradually increased to reduce the impact on the operating state of the compressor and the cooling or heating state of the air conditioner. When the operating frequency of the compressor is increased to the preset operating frequency, the displacement is still in the second preset range, which means that the vibration amplitude of the heat exchanger 120 has not decreased, and then the compressor is periodically controlled to reduce the operating frequency. By gradually reducing the operating frequency of the compressor, the vibration amplitude of the heat exchanger 120 is reduced. In this way, the compressor can be controlled while ensuring the user experience, and the stability of the operation of the outdoor unit 1 can be improved.

[0085] Optionally, the preset operating frequency is equal to the sum of the current operating frequency of the compressor and a frequency threshold. The frequency threshold is in the range of 3 Hz to 8 Hz. By setting the frequency increase upper limit of the compressor, the operating frequency of the compressor is prevented from being too high, which may cause damage to the compressor.

[0086] Optionally, the step of periodically controlling the compressor to increase the operating frequency includes: periodically controlling the compressor to increase the frequency by 1 Hz each time until the operating frequency increases to a preset operating frequency. In this way, the compressor frequency is gradually increased, thereby improving the stability of the operation of the compressor and the air conditioner.

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

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

[0089] In this embodiment, during the operation of the fan 130, directly reducing the speed of the fan 130 will reduce the cooling / heating efficiency of the air conditioner, thereby affecting the user's experience. Therefore, in the step of adjusting the speed of the fan 130, the fan 130 is first periodically controlled to increase the speed, and the speed is gradually increased to reduce the impact on the operating state of the fan 130 and the cooling or heating state of the air conditioner. When the speed of the fan 130 is increased to the preset speed, the displacement is still in the second preset range, which means that the vibration amplitude of the heat exchanger 120 has not decreased, and the fan 130 is periodically controlled to reduce the speed. By gradually reducing the speed of the fan 130, the vibration amplitude of the heat exchanger 120 is reduced. In this way, the fan 130 can be controlled while ensuring the user experience, and the stability of the operation of the outdoor unit 1 can be improved.

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

[0091] Optionally, the step of periodically controlling the fan 130 to increase the speed includes: periodically increasing the speed of the fan 130 by 10 rpm each time until the speed reaches a preset speed. In this way, the speed of the fan 130 is gradually increased, and the stability of the operation of the fan 130 and the air conditioner is improved.

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

[0093] Optionally, when the displacement is within the second preset range and the duration reaches the first preset duration, the processor 200 issues a prompt message. When the displacement is within the third preset range and the duration reaches the 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 relatively large, and if it continues, there is a risk of damage to the heat exchanger 120. When the duration reaches the first preset duration, the processor 200 sends a prompt message, which can promptly inform after-sales personnel to perform maintenance and improve the stability of the operation of the outdoor unit 1.

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

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

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

[0098] By further limiting 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 the 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. Wherein, when the displacement is in the first sub-range, the compressor and the fan 130 are controlled to maintain the current state of operation; when the displacement is in the second sub-range, the compressor and the fan 130 are controlled to maintain the current state of operation, and the warning function is turned on.

[0100] In this embodiment, by setting the first sub-range and the second sub-range, the detection range of the displacement is further refined, and warning information can be issued more promptly to inform the user of possible abnormalities and remind the user to deal with them in time to improve the stability of the operation of the outdoor unit 1.

[0101] Optionally, the air conditioner includes a warning device. The warning device includes a whistle alarm device and a red indicator light. In one embodiment, the warning device is arranged in the air conditioner wire controller in the room, and the screen displays a reminder that the chassis 112 of the outdoor unit 1 is operating abnormally. In one embodiment, the warning device is arranged in the electrical control box of the air conditioner outdoor unit, integrated on the display panel, and the reminder is displayed in the form of a warning light. In one embodiment, the monitoring personnel or after-sales personnel can be notified through the APP information push and text message corresponding to the air conditioner. In order to clearly understand the control method of the outdoor unit described in the above embodiment, the application scenario of the present invention is described in detail below.

[0102] like Fig.10 As shown, a specific control method for the air-conditioning outdoor unit 1 during operation is illustrated by way of example, and the method includes:

[0103] S1001: The processor obtains a first displacement of the heat exchanger located on a compressor side and a second displacement of the heat exchanger located on a fan side.

[0104] S1002, the processor calculates the average of the first displacement and the second displacement as the displacement, and sets the displacement to L x .

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

[0106] S1004, when L x When ≤1mm, the processor controls the compressor and fan to maintain the current state.

[0107] S1005, when 1mm<L x When the vibration is less than or equal to 1.5 mm and lasts for 30 minutes, the processor controls the compressor and fan to keep running in the current state and turns on the warning function. At this time, the abnormal vibration reminder of the corresponding detection area is displayed on the display screen of the wired controller in the room, and the outdoor unit and the background both give abnormal operation reminders of the corresponding chassis detection area, and the yellow warning light in the outdoor unit's electric control box lights up.

[0108] S1006, when 1.5mm<L x When the pressure is less than or equal to 3.0 mm and lasts for 30 minutes, the processor periodically adjusts the operating frequency of the compressor and the speed of the fan, and issues a prompt message to notify after-sales personnel to conduct a real machine test. The processor controls the compressor to increase the frequency first and then decrease the frequency, and the maximum frequency limit is the current operating frequency + 5Hz. The processor controls the fan to increase the speed first and then decrease the speed, and the maximum speed limit is the current speed + 50rpm.

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

[0110] S1007, when L x When the value is greater than 3.0 mm and lasts for 30 minutes, the outdoor unit will be shut down. At the same time, the processor will issue a repair instruction as soon as possible, and the after-sales personnel will conduct actual machine inspection and repair to ensure that the machine is repaired in place and can operate normally after resetting and powering on.

[0111] Combination Fig.11 As shown, the embodiment of the present disclosure provides a control device 20 for an outdoor unit, including a processor 200 (processor) and a memory 201 (memory). Optionally, the device may also include a communication interface 202 (Communication Interface) and a bus 203. The processor 200, the communication interface 202, and the memory 201 may communicate with each other through the bus 203. The communication interface 202 may be used for information transmission. The processor 200 may call the logic instructions in the memory 201 to execute the control method for the outdoor unit of the above embodiment.

[0112] In addition, the logic instructions in the memory 201 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0113] The memory 201 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 200 executes the functional application and data processing by running the program instructions / modules stored in the memory 201, that is, the control method for the outdoor unit in the above embodiment is implemented. Therefore, all the beneficial effects of the above embodiment are obtained, which will not be repeated here.

[0114] The memory 201 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 201 may include a high-speed random access memory and may also include a non-volatile memory.

[0115] The disclosed embodiments provide an air conditioner, comprising: an air conditioner body; and the above-mentioned control device for an outdoor unit. The control device for the outdoor unit is installed on the air conditioner body. The installation relationship described here 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. It can be understood by those skilled in the art that the control device for the outdoor unit can be adapted to a feasible air conditioner body, thereby realizing other feasible embodiments.

[0116] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method of the outdoor unit.

[0117] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0118] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

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

[0120] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by 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, and the control method includes: Obtain the displacement of the heat exchanger; According to the displacement amount, determining the operation parameters corresponding to the displacement amount; Control the operation of the outdoor unit according to the operating parameters.

2. The control method of the outdoor unit according to claim 1, characterized in that: According to the displacement, the step of determining the operating parameter corresponding to the displacement comprises: According to the displacement amount, determining a preset displacement range in which the displacement amount is located; Obtain operating parameters corresponding to the preset displacement range.

3. The control method of the outdoor unit according to claim 2, characterized in that: The outdoor unit also includes a compressor. According to the operating parameters, the steps of controlling the operation of the outdoor unit include: When the displacement is within the first preset range, controlling the compressor to maintain the current state of operation; When the displacement is within a second preset range, adjusting the operating frequency of the compressor; The displacement is the displacement of the heat exchanger on the compressor side.

4. The control method of the outdoor unit according to claim 2, characterized in that: The outdoor unit also includes a fan. According to the operating parameters, the steps of controlling the operation of the outdoor unit include: When the displacement is within the first preset range, the fan is controlled to maintain the current state of operation; When the displacement is within the second preset range, adjusting the speed of the fan; The displacement is the displacement of the heat exchanger on the fan side.

5. The control method of the outdoor unit according to claim 2, characterized in that: The outdoor unit also includes a compressor and a fan. According to the operating parameters, the steps of controlling the operation of the outdoor unit include: When the displacement is within the first preset range, the compressor and the fan are controlled to maintain the current state of operation; When the displacement is within the second preset range, adjusting the operating frequency of the compressor to adjust the speed of the fan; The displacement is an average of a first displacement of the heat exchanger located on the compressor side and a second displacement of the heat exchanger located on the fan side.

6. The control method of the outdoor unit according to claim 3 or 5, characterized in that: The steps for adjusting the operating frequency of the compressor include: Periodically control the compressor to increase the operating frequency; When the operating frequency increases to the preset operating frequency and the displacement is within a second preset range, the compressor is periodically controlled to reduce the operating frequency.

7. The control method of the outdoor unit according to claim 4 or 5, characterized in that: The steps for adjusting the fan speed include: Periodically control the fan to increase its speed; When the rotation speed increases to a preset rotation speed and the displacement is within a second preset range, the fan is periodically controlled to reduce the rotation speed.

8. The control method of an outdoor unit according to any one of claims 3 to 5, characterized in that: When the displacement is within the second preset range and the duration reaches the first preset duration, a prompt message is issued; When the displacement is within the third preset range and the duration reaches the second preset duration, the outdoor unit is controlled to shut down; The upper limit value of the first preset range is less than or equal to the lower limit value of the second preset range, and the upper limit value of the second preset range is less than or equal to the lower limit value of the third preset range.

9. 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 control method of the outdoor unit according to any one of claims 1 to 8 when running the program instructions.

10. An air conditioner, characterized in that: include: Air conditioner body; The control device of the outdoor unit as claimed in claim 9 is installed on the air conditioner body.

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