Control method and device of outdoor fan of air conditioner and air conditioner

Abstract

The application provides a control method and device of an outdoor fan of an air conditioner and the air conditioner. The method is applied to a wind speed regulator. The condensation temperature and the ambient temperature are obtained, the ambient temperature interval in which the ambient temperature is located is determined, the corresponding condensation parameter interval is determined based on the ambient temperature interval, the to-be-used wind speed parameter is determined from the corresponding relationship between the pre-set parameter interval and the wind speed parameter based on the condensation temperature and the condensation parameter interval, and the wind speed of the outdoor fan is controlled based on the to-be-used wind speed parameter. In this way, the outdoor fan can be accurately controlled according to the ambient temperature and the condensation temperature. Compared with the current outdoor fan which runs under the condition that the air conditioner is stopped and the outdoor temperature is high, the power consumption can be reduced and the bearing life of the outdoor fan can be prolonged.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a control method, device, and air conditioner for an outdoor fan. Background Technology

[0002] With the development of smart homes, air conditioners have become an indispensable part of people's lives. For data centers, the air conditioners mainly operate in cooling mode. Currently, outdoor fans usually adjust their speed according to the condensing pressure. When the outdoor temperature is high, even if the air conditioner is off, the condensing pressure will still be high, and the outdoor fan will start. In other words, the outdoor fan will currently operate when the air conditioner is off and the outdoor temperature is high. This will lead to increased power consumption and increased usage time of the outdoor fan, thereby reducing the lifespan of the outdoor fan bearings. Summary of the Invention

[0003] This invention provides a control method, device, and air conditioner for an outdoor fan of an air conditioner, which solves the defects in the prior art where the outdoor fan operates when the air conditioner is off and the outdoor temperature is high, resulting in increased power consumption and reduced bearing life. The invention achieves precise control of the outdoor fan, thereby reducing power consumption and extending the bearing life of the outdoor fan.

[0004] This invention provides a control method for an outdoor fan of an air conditioner, the method being applied to the fan speed regulator, the method comprising:

[0005] Obtain the condensation temperature and ambient temperature;

[0006] Determine the ambient temperature range in which the ambient temperature falls, and determine the corresponding condensation parameter range based on the ambient temperature range;

[0007] Based on the condensation temperature and the condensation parameter range, the wind speed parameter to be used is determined from the pre-set correspondence between the parameter range and the wind speed parameter, and the wind speed of the outdoor fan is controlled based on the wind speed parameter to be used.

[0008] According to a control method for an outdoor fan of an air conditioner provided by the present invention, when the ambient temperature range is a first temperature range, the condensing parameter range is a first selectable temperature range, wherein the first selectable temperature range is a range divided based on a first temperature value, and the first temperature value is a temperature value determined based on the ambient temperature.

[0009] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, includes:

[0010] Based on the relationship between the condensation temperature and the first temperature value, a first target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter, wherein the first target wind speed parameter is the wind speed parameter to be used;

[0011] The operating parameters of the outdoor fan are adjusted to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

[0012] According to a control method for an outdoor fan of an air conditioner provided by the present invention, the step of determining a first target wind speed parameter based on the relationship between the condensing temperature and the first temperature value, from a pre-set correspondence between parameter ranges and wind speed parameters, includes:

[0013] When the condensation temperature is lower than the first temperature value, based on the relationship between the condensation temperature and the first temperature value, the shutdown parameter is determined as the first target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0014] When the condensation temperature is not less than the first temperature value, based on the relationship between the condensation temperature and the first temperature value, a proportional parameter is determined as the first target wind speed parameter from the correspondence between a pre-set parameter range and a wind speed parameter, wherein the proportional parameter is a parameter determined based on the condensation temperature and the pre-set correspondence between temperature and parameter.

[0015] According to a control method for an outdoor fan of an air conditioner provided by the present invention, when the ambient temperature range is a first temperature range, the condensation parameter range is a rate of change range, and the rate of change range is a range divided based on a preset change value.

[0016] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, includes:

[0017] Based on the condensation temperature at two different times, calculate the difference between the condensation temperatures at the two different times, and calculate the rate of temperature change based on the difference;

[0018] Based on the relationship between the temperature change rate and the preset change value, a first target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter, wherein the first target wind speed parameter is the wind speed parameter to be used.

[0019] The operating parameters of the outdoor fan are adjusted to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

[0020] According to a control method for an outdoor fan of an air conditioner provided by the present invention, the step of determining a first target wind speed parameter based on the relationship between the temperature change rate and the preset change value, from a pre-set correspondence between parameter ranges and wind speed parameters, includes:

[0021] If the rate of temperature change is less than the preset change value, based on the relationship between the rate of temperature change and the preset change value, the shutdown parameter is determined as the first target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0022] If the rate of temperature change is not less than the preset change value, based on the relationship between the rate of temperature change and the preset change value, the proportional parameter is determined as the first target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter, wherein the proportional parameter is a parameter determined based on the condensation temperature and the preset correspondence between temperature and parameter.

[0023] According to a control method for an outdoor fan of an air conditioner provided by the present invention, when the ambient temperature range is a second temperature range, the condensation parameter range is a second selectable temperature range, the second selectable temperature range is a range divided based on a first temperature value and a second temperature value, the first temperature value and the second temperature value are temperature values ​​determined based on the ambient temperature;

[0024] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, includes:

[0025] Based on the relationship between the condensation temperature and the first and second temperature values, a second target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter, wherein the second target wind speed parameter is the wind speed parameter to be used;

[0026] The operating parameters of the outdoor fan are adjusted to the second target wind speed parameter to adjust the wind speed of the outdoor fan.

[0027] According to a control method for an outdoor fan of an air conditioner provided by the present invention, the second temperature value is higher than the first temperature value;

[0028] The step of determining the second target wind speed parameter based on the relationship between the condensation temperature and the first and second temperature values, from the correspondence between a pre-set parameter range and wind speed parameters, includes:

[0029] When the condensation temperature is not less than the second temperature value, based on the relationship between the condensation temperature and the second temperature value, a proportional parameter is determined as the second target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter, wherein the proportional parameter is a parameter determined based on the condensation temperature and the correspondence between the preset temperature and the parameter;

[0030] If the condensation temperature is lower than the first temperature value, based on the relationship between the condensation temperature and the first temperature value, the shutdown parameter is determined as the second target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0031] According to a control method for an outdoor air conditioner fan provided by the present invention, the step of determining the wind speed parameter to be used from a pre-set correspondence between the condensing temperature and the condensing parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, further includes:

[0032] When the condensation temperature is not less than the first temperature value and less than the second temperature value, the fan operating parameters are determined from the pre-set correspondence between the parameter range and the wind speed parameters, and the wind speed of the outdoor fan is kept constant based on the fan operating parameters.

[0033] According to a control method for an outdoor fan of an air conditioner provided by the present invention, when the ambient temperature range is a third temperature range, the condensation parameter range is a third selectable temperature range, and the third selectable temperature range is a range divided based on a first preset temperature value, a second preset temperature value and a third preset temperature value.

[0034] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, includes:

[0035] Based on the relationship between the condensation temperature and the first preset temperature value, the second preset temperature value and the third preset temperature value, the third target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter.

[0036] The operating parameters of the outdoor fan are adjusted to the third target wind speed parameter to adjust the wind speed of the outdoor fan.

[0037] According to a control method for an outdoor fan of an air conditioner provided by the present invention, the third preset temperature value is higher than the second preset temperature value, and the second preset temperature value is higher than the first preset temperature value;

[0038] The step of determining the third target wind speed parameter based on the relationship between the condensation temperature and the first preset temperature value, the second preset temperature value, and the third preset temperature value, from the correspondence between the preset parameter range and the wind speed parameter, includes:

[0039] If the condensation temperature is less than the first preset temperature value, based on the relationship between the condensation temperature and the first preset temperature value, the shutdown parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0040] When the condensation temperature is not less than the first preset temperature value and less than the second preset temperature value, based on the relationship between the condensation temperature and the first and second preset temperature values, the minimum parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0041] When the condensation temperature is not less than the second preset temperature value and less than the third preset temperature value, based on the relationship between the condensation temperature and the second preset temperature value and the third preset temperature value, a proportional parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter, wherein the proportional parameter is a parameter determined based on the correspondence between the condensation temperature and the preset temperature and parameter.

[0042] If the condensation temperature is not less than the third preset temperature value, based on the relationship between the condensation temperature and the third preset temperature value, the maximum parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0043] According to a control method for an outdoor fan of an air conditioner provided by the present invention, the step of obtaining the condensing temperature includes:

[0044] Obtain the condensation pressure;

[0045] The condensation temperature is determined based on the condensation pressure and the pre-set correspondence between pressure and temperature.

[0046] The present invention also provides a control device for an outdoor fan of an air conditioner, the device being disposed on the fan speed regulator, the device comprising:

[0047] The acquisition module is used to acquire the condensation temperature and ambient temperature;

[0048] The determination module is used to determine the ambient temperature range in which the ambient temperature is located, and to determine the corresponding condensation parameter range based on the ambient temperature range;

[0049] The control module is used to determine the wind speed parameter to be used from the correspondence between the preset parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and to control the wind speed of the outdoor fan based on the wind speed parameter to be used.

[0050] The present invention also provides an air conditioner, the air conditioner including an outdoor unit;

[0051] The outdoor unit includes a wind speed regulator, which is used to perform the method described in any of the above descriptions.

[0052] According to an air conditioner provided by the present invention, the air conditioner further includes an indoor unit connected to an outdoor unit, and the outdoor unit further includes a condensation sensor, a condenser, a first temperature sensor and an outdoor fan, wherein the fan speed regulator is connected to the condensation sensor, the first temperature sensor and the outdoor fan;

[0053] The condensation sensor is either a second temperature sensor or a pressure sensor.

[0054] The present invention provides a control method, device, and air conditioner for an outdoor air conditioner fan. The method is applied to a wind speed regulator. By acquiring the condensing temperature and the ambient temperature, the ambient temperature range is determined, and the corresponding condensing parameter range is determined based on the ambient temperature range. Based on the condensing temperature and the condensing parameter range, the wind speed parameter to be used is determined from the correspondence between the preset parameter range and the wind speed parameter, and the wind speed of the outdoor fan is controlled based on the wind speed parameter to be used.

[0055] In this way, the wind speed regulator can determine the ambient temperature range based on the acquired ambient temperature, and then determine the corresponding condensing parameter range based on the ambient temperature range. In turn, it can determine the wind speed parameter to be used based on the condensing temperature and the condensing parameter range, thereby controlling the wind speed of the outdoor fan based on the wind speed parameter to be used. In other words, it can achieve precise control of the outdoor fan based on the ambient temperature and condensing temperature. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0057] Figure 1 This is one of the flowcharts illustrating the control method for the outdoor fan of an air conditioner provided by the present invention; Figure 2 This is one of the interval diagrams of the control method for the outdoor fan of an air conditioner provided by the present invention;

[0058] Figure 3 This is the second schematic diagram of the control method for the outdoor fan of an air conditioner provided by the present invention;

[0059] Figure 4 This is the third section diagram of the control method for the outdoor fan of an air conditioner provided by the present invention;

[0060] Figure 5 This is a schematic diagram of the control device for the outdoor fan of an air conditioner provided by the present invention;

[0061] Figure 6 This is one of the structural schematic diagrams of the air conditioner provided by the present invention;

[0062] Figure 7 This is the second structural schematic diagram of the air conditioner provided by the present invention;

[0063] Figure 8 This is a schematic diagram of the wind speed regulator provided by the present invention. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0065] To achieve precise control of the outdoor fan, thereby reducing power consumption and extending the bearing life of the outdoor fan, this invention provides a control method, device, and air conditioner for an air conditioner's outdoor fan. The following describes the method in conjunction with... Figure 1 This invention provides a method for controlling an outdoor air conditioner fan according to an embodiment of the invention:

[0066] like Figure 1 As shown, this embodiment of the invention provides a control method for an outdoor fan of an air conditioner. The method is applied to a fan speed regulator and includes:

[0067] S101, obtains the condensation temperature and ambient temperature.

[0068] In order to achieve precise control of the outdoor fan, the wind speed regulator can obtain the condensing temperature and ambient temperature in real time. The condensing temperature refers to the temperature at which the refrigerant in the condenser condenses from gas into liquid under a certain pressure.

[0069] To facilitate understanding of the control method for an outdoor fan of an air conditioner provided in the embodiments of the present invention, the air conditioner corresponding to the embodiments of the present invention will be described below. The air conditioner corresponding to the embodiments of the present invention includes at least an outdoor unit, which includes a fan speed regulator, a condenser sensor, a condenser, a first temperature sensor, and an outdoor fan.

[0070] The condensation sensor can be either a second temperature sensor or a pressure sensor. The condensation sensor measures either the temperature (condensation temperature) or the condensation pressure corresponding to the condenser. Specifically, the second temperature sensor measures the temperature of the condenser, and the pressure sensor measures the condensation pressure.

[0071] The wind speed regulator, condenser, first temperature sensor, and outdoor fan are housed inside the outdoor fan casing, while the condenser sensor (second temperature sensor or pressure sensor) is housed inside the condenser. The wind speed regulator is connected to the first temperature sensor and the outdoor fan, and it is also connected to the second temperature sensor or pressure sensor.

[0072] The aforementioned condensation temperature is based on the temperature obtained by the condensation sensor, while the ambient temperature is the temperature measured by the first temperature sensor. In one embodiment, when the condensation sensor is a second temperature sensor, the condensation temperature can be the temperature corresponding to the condenser measured by the second temperature sensor. That is, the fan speed regulator can obtain the temperature corresponding to the condenser measured by the second temperature sensor.

[0073] In another embodiment, when the condensation sensor is a pressure sensor, the condensation temperature can be a temperature determined based on the condensation pressure and a pre-set pressure-temperature correspondence. Here, the condensation pressure is the condensation pressure of the condenser measured by the pressure sensor. Condensation pressure refers to the pressure of the refrigerant when the gas is cooled into a liquid state in the condenser.

[0074] In other words, the wind speed regulator can obtain the condensing pressure of the condenser measured by the pressure sensor, and then determine the condensing temperature based on the condensing pressure and the pre-set correspondence between pressure and temperature.

[0075] S102, determine the ambient temperature range in which the ambient temperature is located, and determine the corresponding condensation parameter range based on the ambient temperature range.

[0076] After obtaining the ambient temperature, the fan speed regulator can determine the ambient temperature range and, based on this range, determine the corresponding condensation parameter range. The ambient temperature range is defined by a first temperature and a second temperature.

[0077] The first and second temperatures can be set according to actual usage requirements. The ambient temperature range can include a first temperature range, a second temperature range, and a third temperature range. When the ambient temperature is higher than the second temperature, the ambient temperature range in which the ambient temperature falls is the first temperature range. When the ambient temperature is higher than the first temperature but not higher than the second temperature, the ambient temperature range in which the ambient temperature falls is the second temperature range. When the ambient temperature is not higher than the first temperature, the ambient temperature range in which the ambient temperature falls is the third temperature range.

[0078] For example, if the first temperature is 35℃ and the second temperature is 45℃, the ambient temperature range where the ambient temperature falls is the first temperature range if the ambient temperature is greater than 45℃. The ambient temperature range where the ambient temperature falls is the second temperature range if the ambient temperature is greater than 35℃ but not greater than 45℃. The ambient temperature range where the ambient temperature falls is the third temperature range if the ambient temperature is not greater than 35℃.

[0079] Each temperature range has a corresponding condensation parameter range. Specifically, the condensation parameter range corresponding to the first temperature range is the first selectable temperature range or the rate of change range. The condensation parameter range corresponding to the second temperature range is the second selectable temperature range. The condensation parameter range corresponding to the third temperature range is the third selectable temperature range. The criteria for defining the first, second, and third selectable temperature ranges are different.

[0080] S103, based on the condensation temperature and the condensation parameter range, determine the wind speed parameter to be used from the pre-set correspondence between the parameter range and the wind speed parameter, and control the wind speed of the outdoor fan based on the wind speed parameter to be used.

[0081] After obtaining the condensing temperature and determining the condensing parameter range, the wind speed regulator can determine the wind speed parameter to be used based on the condensing temperature and the condensing parameter range, from the pre-set correspondence between the parameter range and the wind speed parameter, and control the wind speed of the outdoor fan based on the wind speed parameter to be used.

[0082] In one implementation, the wind speed parameter to be used can be consistent with the operating parameters of the outdoor fan. In this case, it is not necessary to adjust the wind speed of the outdoor fan. Alternatively, the wind speed parameter to be used may be inconsistent with the operating parameters of the outdoor fan. In this case, it is necessary to adjust the wind speed of the outdoor fan.

[0083] As can be seen, in this embodiment, the wind speed regulator can determine the ambient temperature range based on the acquired ambient temperature, and determine the corresponding condensing parameter range based on the ambient temperature range. Then, it can determine the wind speed parameter to be used based on the condensing temperature and the condensing parameter range, thereby controlling the wind speed of the outdoor fan based on the wind speed parameter to be used. In other words, it can achieve precise control of the outdoor fan based on the ambient temperature and condensing temperature. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0084] As one embodiment of the present invention, when the ambient temperature range is a first temperature range, that is, when the ambient temperature is greater than a second temperature range, the step of determining the corresponding condensation parameter range based on the ambient temperature range may include:

[0085] Based on the first temperature range, a first selectable temperature range is determined from the pre-set correspondence between ranges and parameter ranges, and the first selectable temperature range is used as the condensation parameter range.

[0086] Once the ambient temperature is obtained, the fan speed regulator can determine a first selectable temperature range based on the ambient temperature range (i.e., the first temperature range) and the pre-set correspondence between ranges and parameter ranges. This first selectable temperature range can then be used as the condensation parameter range. There is a correspondence between the first temperature range and the first selectable temperature range.

[0087] As one embodiment of the present invention, the first temperature range to be selected is a range divided based on a first temperature value, wherein the first temperature value is a temperature value determined based on the ambient temperature.

[0088] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, includes:

[0089] Based on the relationship between the condensation temperature and the first temperature value, a first target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter; wherein, the first target wind speed parameter is the wind speed parameter to be used.

[0090] The operating parameters of the outdoor fan are adjusted to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

[0091] In one embodiment, the first temperature value can be the sum of the ambient temperature and a first constant. The first constant can be set according to actual usage needs. For example, the first constant can be 1, and the first temperature value is the sum of the ambient temperature and 1.

[0092] If the condensing temperature is lower than the first temperature value, it means that the condensing temperature belongs to the range where the first temperature value is lower than the first temperature value. The wind speed regulator can determine the shutdown parameter as the first target wind speed parameter based on the relationship between the condensing temperature and the first temperature value, from the correspondence between the preset parameter range and the wind speed parameter. There is a correspondence between the range where the first temperature value is lower than the first temperature value and the shutdown parameter.

[0093] If the condensing temperature is not less than the first temperature value, it means that the condensing temperature belongs to the range where the first temperature value is not less than. The wind speed regulator can determine the proportional parameter as the first target wind speed parameter based on the relationship between the condensing temperature and the first temperature value, from the correspondence between the preset parameter range and the wind speed parameter. There is a correspondence between the range where the first temperature value is not less than and the proportional parameter. The proportional parameter is a parameter determined based on the correspondence between the condensing temperature and the preset temperature and parameter.

[0094] Accordingly, when the condensing temperature is lower than the first temperature value, the fan speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, thus stopping the outdoor fan. When the condensing temperature is not lower than the first temperature value, the fan speed regulator can adjust the operating parameters of the outdoor fan to proportional parameters, thus changing the fan speed to the speed corresponding to the proportional parameters.

[0095] As can be seen, in this embodiment, the wind speed regulator can adjust the operating parameters of the outdoor fan to shutdown parameters or proportional parameters. In this way, precise control of the outdoor scenery can be achieved. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0096] As one embodiment of the present invention, when the ambient temperature range is a first temperature range, that is, when the ambient temperature is greater than a second temperature range, the step of determining the corresponding condensation parameter range based on the ambient temperature range may include:

[0097] Based on the first temperature range, the rate of change range is determined from the pre-set correspondence between ranges and parameter ranges, and the rate of change range is used as the condensation parameter range.

[0098] Once the ambient temperature is obtained, the wind speed regulator can determine the rate of change range based on the ambient temperature range (i.e., the first temperature range) and the pre-set correspondence between ranges and parameter ranges. This rate of change range can then be used as the condensation parameter range. There is a correspondence between the first temperature range and the rate of change range.

[0099] As one embodiment of the present invention, the range of parameters to be condensed is a range of change rates, which is a range divided based on a preset change value.

[0100] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, may include:

[0101] Based on the condensation temperature at two different times, the difference between the condensation temperatures at the two different times is calculated, and the rate of temperature change is calculated based on the difference.

[0102] The condensing temperature includes the condensing temperature at two different times. After obtaining the condensing temperature, the wind speed regulator can calculate the difference between the condensing temperatures at the two different times. Then, the quotient of the difference and the time difference is used as the temperature change rate. The time difference is the difference between the two times. The temperature change rate can characterize the rate of temperature rise during the condensing period corresponding to the two different times.

[0103] Based on the relationship between the temperature change rate and the preset change value, a first target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter; wherein, the first target wind speed parameter is the wind speed parameter to be used.

[0104] The operating parameters of the outdoor fan are adjusted to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

[0105] If the rate of temperature change is less than a preset value, it indicates that the rate of temperature change falls within the range where the preset value is less than the preset value. Based on the relationship between the rate of temperature change and the preset value, the wind speed regulator determines the shutdown parameter as the first target wind speed parameter from the correspondence between pre-set parameter ranges and wind speed parameters. There is a correspondence between the preset range where the temperature change is less than the preset value and the shutdown parameter.

[0106] If the rate of temperature change is not less than a preset value, it indicates that the rate of temperature change falls within the preset range. Based on the relationship between the rate of temperature change and the preset value, the wind speed regulator determines a proportional parameter as the first target wind speed parameter from the correspondence between pre-set parameter ranges and wind speed parameters. Specifically, there is a correspondence between the preset range and the proportional parameter, which is determined based on the condensation temperature and the pre-set correspondence between temperature and parameters.

[0107] Correspondingly, when the rate of temperature change is less than the preset change value, the wind speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, so that the outdoor fan can stop running.

[0108] When the rate of temperature change is not less than the preset change value, the wind speed regulator can adjust the operating parameters of the outdoor fan to proportional parameters, so that the wind speed of the outdoor fan can be changed to the wind speed corresponding to the proportional parameters.

[0109] As can be seen, in this embodiment, the wind speed regulator can adjust the operating parameters of the outdoor fan to shutdown parameters or proportional parameters. In this way, precise control of the outdoor scenery can be achieved. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0110] As one embodiment of the present invention, when the ambient temperature falls within a second temperature range (i.e., when the ambient temperature is greater than a first temperature but not greater than a second temperature), the step of determining the corresponding condensation parameter range based on the ambient temperature range may include:

[0111] The wind speed regulator determines a second selectable temperature range based on the second temperature range and from the pre-set correspondence between ranges and parameter ranges, and uses the second selectable temperature range as the condensation parameter range.

[0112] The second temperature range and the second temperature range to be selected are related. The second temperature range to be selected is a range divided based on the first temperature value and the second temperature value. The first temperature value and the second temperature value are both temperature values ​​determined based on the ambient temperature. The second temperature value is higher than the first temperature value.

[0113] In one embodiment, the second temperature value can be the sum of the ambient temperature and the second constant, wherein the second constant is greater than the first constant. The second constant can be set according to actual usage needs. For example, the second constant can be 2, and the second temperature value is the sum of the ambient temperature and 2.

[0114] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, may include:

[0115] Based on the relationship between the condensation temperature and the first and second temperature values, a second target wind speed parameter is determined from the pre-set correspondence between parameter ranges and wind speed parameters. The second target wind speed parameter is the wind speed parameter to be used.

[0116] If the condensing temperature is not less than the second temperature value, it means that the condensing temperature belongs to the range where the second temperature value is not less than. The wind speed regulator can determine the proportional parameter as the second target wind speed parameter based on the relationship between the condensing temperature and the second temperature value, from the correspondence between the preset parameter range and the wind speed parameter. There is a correspondence between the range where the second temperature value is not less than and the proportional parameter. The proportional parameter is a parameter determined based on the correspondence between the condensing temperature and the preset temperature and parameter.

[0117] If the condensing temperature is lower than the first temperature value, it indicates that the condensing temperature falls within the range below the first temperature value. Based on the relationship between the condensing temperature and the first temperature value, the shutdown parameter can be determined as the second target wind speed parameter from the pre-set correspondence between the parameter range and the wind speed parameter. There is a correspondence between the range below the first temperature value and the shutdown parameter.

[0118] The operating parameters of the outdoor fan are adjusted to the second target wind speed parameter to adjust the wind speed of the outdoor fan.

[0119] Accordingly, when the condensing temperature is not lower than the second temperature value, the fan speed regulator can adjust the operating parameters of the outdoor fan to proportional parameters, so that the fan speed can be changed to the speed corresponding to the proportional parameters. When the condensing temperature is lower than the first temperature value, the fan speed regulator can adjust the operating parameters of the outdoor fan to shutdown parameters, so that the outdoor fan can stop operating.

[0120] The step of adjusting the wind speed of the outdoor fan based on the condensation temperature and the processing method to be used may further include:

[0121] When the condensing temperature is not less than a first temperature value and less than a second temperature value, the fan operating parameters are determined from the pre-set correspondence between the parameter range and the wind speed parameters. Based on these fan operating parameters, the wind speed of the outdoor fan can be kept constant. In other words, when the condensing temperature falls within the range of not less than the first temperature value and less than the second temperature value, the outdoor fan can maintain its original operating parameters unchanged, i.e., the wind speed of the outdoor fan remains constant.

[0122] As can be seen, in this embodiment, the wind speed regulator can adjust the operating parameters of the outdoor fan to shutdown parameters, proportional parameters, or keep the operating parameters unchanged. In this way, precise control of the outdoor scenery can be achieved. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0123] As one embodiment of the present invention, when the ambient temperature falls within a third temperature range, i.e., when the ambient temperature is not greater than the first temperature, the step of determining the corresponding condensation parameter range based on the ambient temperature range may include:

[0124] The wind speed regulator determines a third selectable temperature range based on the third temperature range from the pre-set correspondence between the range and the parameter range, and uses the third selectable temperature range as the condensation parameter range.

[0125] There is a corresponding relationship between the third temperature range and the third temperature range to be selected. The third temperature range to be selected is a range divided based on the first preset temperature value, the second preset temperature value and the third preset temperature value. The third preset temperature value is higher than the second preset temperature value, and the second preset temperature value is higher than the first preset temperature value.

[0126] In one embodiment, the first preset temperature value can be determined based on a second preset temperature value, which can be the difference between the second preset temperature value and a third constant. For example, the third preset temperature value can be 46℃, 47℃, 48℃, etc., and the second preset temperature value can be 35℃, 36℃, 37℃, 38℃, etc. Correspondingly, the first preset temperature value can be the difference obtained by subtracting 2 from the second preset temperature value.

[0127] The step of determining the wind speed parameter to be used from a pre-set correspondence between the parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, may include:

[0128] Based on the relationship between the condensation temperature and the first preset temperature value, the second preset temperature value, and the third preset temperature value, the third target wind speed parameter is determined from the correspondence between the preset parameter range and the wind speed parameter.

[0129] If the condensing temperature is lower than the first preset temperature value, it indicates that the condensing temperature falls within the range below the first preset temperature threshold. The fan speed regulator can then determine the shutdown parameter as the third target fan speed parameter based on the relationship between the condensing temperature and the first preset temperature value, from the correspondence between pre-set parameter ranges and fan speed parameters. There is a correspondence between the range below the first preset temperature threshold and the shutdown parameter.

[0130] If the condensing temperature is not less than the first preset temperature value and less than the second preset temperature value, it indicates that the condensing temperature falls within the range of not less than the first preset temperature value and less than the second preset temperature value. The fan speed regulator can determine the minimum parameter as the third target fan speed parameter based on the relationship between the condensing temperature and the first and second preset temperature values, from the correspondence between the preset parameter range and the fan speed parameters. There is a correspondence between the range of not less than the first preset temperature value and less than the second preset temperature value and the minimum parameter.

[0131] If the condensing temperature is not less than the second preset temperature value and less than the third preset temperature value, it means that the condensing temperature belongs to the range of not less than the second preset temperature value and less than the third preset temperature value. The wind speed regulator can determine the proportional parameter as the third target wind speed parameter based on the relationship between the condensing temperature and the second and third preset temperature values, from the correspondence between the preset parameter range and the wind speed parameter. There is a correspondence between the range of not less than the second preset temperature value and the third preset temperature value and the proportional parameter. The proportional parameter is a parameter determined based on the correspondence between the condensing temperature and the preset temperature and parameter.

[0132] If the condensing temperature is not less than the third preset temperature value, it indicates that the condensing temperature falls within the range where the third preset temperature value is not less than. The fan speed regulator can determine the maximum parameter as the third target fan speed parameter based on the relationship between the condensing temperature and the third preset temperature value, from the correspondence between the preset parameter range and the fan speed parameters. There is a correspondence between the range where the third preset temperature value is not less than and the maximum parameter.

[0133] The operating parameters of the outdoor fan are adjusted to the third target wind speed parameter to adjust the wind speed of the outdoor fan.

[0134] Accordingly, when the condensing temperature is lower than the first preset temperature value, the wind speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, so that the outdoor fan can stop running.

[0135] When the condensing temperature is not less than the first preset temperature value and less than the second preset temperature value, the wind speed regulator can adjust the operating parameters of the outdoor fan to the minimum parameters, so that the outdoor fan can operate at the minimum wind speed.

[0136] When the condensing temperature is not less than the second preset temperature value and less than the third preset temperature value, the wind speed regulator can adjust the operating parameters of the outdoor fan to proportional parameters. In this way, the wind speed of the outdoor fan can be changed to the wind speed corresponding to the proportional parameters.

[0137] When the condensing temperature is not lower than the third preset temperature value, the wind speed regulator can adjust the operating parameters of the outdoor fan to the maximum parameters, so that the outdoor fan can operate at the maximum wind speed.

[0138] The minimum and maximum parameters are obtained based on the actual hardware conditions of the outdoor fan. The proportional parameter is determined based on the linear relationship between the minimum, maximum, second, and third preset temperature values. For example, the horizontal axis of the linear relationship could be temperature, and the vertical axis could be the outdoor fan speed.

[0139] The difference between the maximum parameter and the minimum parameter is taken as the first difference, and the difference between the third preset temperature value and the second preset temperature value is taken as the second difference. After obtaining the condensing temperature, the condensing temperature can be multiplied by the ratio to be used to obtain the proportional parameter, where the ratio to be used is the quotient of the first difference and the second difference.

[0140] As can be seen, in this embodiment, the wind speed regulator can adjust the operating parameters of the outdoor fan to shutdown parameters, proportional parameters, minimum parameters, or maximum parameters. In this way, precise control of the outdoor scenery can be achieved. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0141] To better understand the control method for an outdoor air conditioner fan provided in this embodiment of the invention, the following will be used as an example. Figures 2-4 Taking an example, we will introduce a control method for an outdoor air conditioner fan provided in an embodiment of the present invention.

[0142] For example, ambient temperature is represented by Ta, condensation temperature by Tc, the first temperature value by Ta+1, the second temperature value by Ta+2, the first preset temperature value by T1, the second preset temperature value by T2, and the third preset temperature value by T3.

[0143] When Ta is greater than 45℃, that is, when Ta > 45℃, the ambient temperature range is the first temperature range. The condensation parameter range is the first selectable temperature range or rate of change range. The step of the wind speed regulator determining the wind speed parameter to be used from the pre-set correspondence between parameter ranges and wind speed parameters based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, has the following two possibilities.

[0144] In the first case, the condensation parameter range is the first temperature range to be selected, such as... Figure 2 As shown, when the condensing temperature is lower than the first temperature value, that is, when Tc < Ta+1, it indicates that Tc belongs to the first temperature value less than the interval 201. Therefore, the shutdown parameter can be determined as the first target wind speed parameter. Consequently, the wind speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, thus stopping the outdoor fan from operating.

[0145] If the condensing temperature is not less than the first temperature value, that is, Tc ≥ Ta + 1, it means that Tc belongs to the range where the first temperature value is not less than 202, and the proportional parameter can be determined as the first target wind speed parameter. Therefore, the wind speed regulator can adjust the operating parameters of the outdoor fan to the proportional parameter, so that the wind speed of the outdoor fan can become the wind speed corresponding to the proportional parameter.

[0146] In the second case, the condensation parameter range is the rate of change range. After obtaining the condensation temperature at two different times, the difference between the condensation temperatures at the two different times can be calculated. Then, the quotient of the difference and the time difference can be used as the rate of temperature change, which can be represented by ΔTct.

[0147] If the rate of temperature change is less than the preset change value (assuming the preset change value is 0.5℃ / s), that is, if ΔTct < 0.5℃ / s, it means that ΔTct belongs to the range where the preset change value is less than 0.5℃ / s. Therefore, the shutdown parameter can be determined as the first target wind speed parameter. Consequently, the wind speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, thus stopping the outdoor fan from operating.

[0148] If the rate of temperature change is not less than the preset change value, that is, if ΔTct ≥ 0.5℃ / s, it means that ΔTct belongs to the preset change value range, and the proportional parameter can be determined as the first target wind speed parameter. Therefore, the wind speed regulator can adjust the operating parameters of the outdoor fan to the proportional parameter, so that the wind speed of the outdoor fan can become the wind speed corresponding to the proportional parameter.

[0149] When Ta is greater than 35℃ but not greater than 45℃ (i.e., 35℃ < Ta ≤ 45℃), the ambient temperature range is the second temperature range. The condensation parameter range is the second selectable temperature range.

[0150] like Figure 3As shown, when the condensing temperature is not less than the second temperature value, that is, when Tc ≥ Ta + 2, it indicates that Tc belongs to the range where the second temperature value is not less than 301. Therefore, the proportional parameter can be determined as the second target wind speed parameter. Furthermore, the wind speed regulator can adjust the operating parameters of the outdoor fan to the proportional parameter, thus changing the wind speed of the outdoor fan to the wind speed corresponding to the proportional parameter.

[0151] If the condensing temperature is lower than the first temperature value, i.e., Tc < Ta+1, it indicates that Tc belongs to the first temperature value less than the interval 302. Therefore, the shutdown parameter can be determined as the second target wind speed parameter. Consequently, the wind speed regulator can adjust the operating parameters of the outdoor fan to the shutdown parameters, thus stopping the outdoor fan from operating.

[0152] If the condensing temperature is not less than the first temperature value and less than the second temperature value, that is, if Ta+1≤Tc<Ta+2, then the condensing temperature falls within the range of not less than the first temperature value and less than the second temperature value (303). The original operating parameters can be maintained unchanged, i.e., the outdoor fan speed remains constant.

[0153] When Ta is not greater than 35℃, that is, when Ta ≤ 35℃, the ambient temperature range is the third temperature range. The condensation parameter range is the third temperature range to be selected.

[0154] like Figure 4 As shown, the horizontal axis represents temperature, and the vertical axis represents parameters. When the condensing temperature is lower than the first preset temperature value, that is, when Tc < T1, the shutdown parameter can be determined as the third target wind speed parameter. Therefore, the wind speed regulator can adjust the outdoor fan's operating parameters to the shutdown parameters, thus stopping the outdoor fan from operating.

[0155] When the condensing temperature is not less than the first preset temperature value and less than the second preset temperature value, that is, when T1≤Tc<T2, the minimum parameter (min) can be determined as the third target wind speed parameter. Then, the wind speed regulator can adjust the operating parameters of the outdoor fan to the minimum parameter, so that the outdoor fan can operate at the minimum wind speed (min).

[0156] When the condensing temperature is not less than the second preset temperature value and less than the third preset temperature value (i.e., T2 ≤ Tc < T3), the proportional parameter can be determined as the third target wind speed parameter. Therefore, the wind speed regulator can adjust the operating parameters of the outdoor fan to the proportional parameter, so that the wind speed of the outdoor fan can become the wind speed corresponding to the proportional parameter.

[0157] When the condensing temperature is not less than the third preset temperature value, that is, when Tc≤T3, the maximum parameter (max) can be determined as the third target wind speed parameter. Then, the wind speed regulator can adjust the operating parameters of the outdoor fan to the maximum parameter (max), so that the outdoor fan can operate at the maximum wind speed.

[0158] As can be seen, in this embodiment, the wind speed regulator can determine the ambient temperature range based on the acquired ambient temperature, and determine the corresponding condensing parameter range based on the ambient temperature range. Then, it can determine the wind speed parameter to be used based on the condensing temperature and the condensing parameter range, thereby controlling the wind speed of the outdoor fan based on the wind speed parameter to be used. In other words, it can achieve precise control of the outdoor fan based on the ambient temperature and condensing temperature. Compared with the current outdoor fan, which operates when the air conditioner is off and the outdoor temperature is high, it can reduce power consumption and extend the bearing life of the outdoor fan.

[0159] In existing technologies, the outdoor unit can establish a communication connection with the indoor unit. When the indoor unit is off, it sends a signal to the outdoor unit. However, the connection distance between the indoor and outdoor units of air conditioners is usually 10 to 100 meters depending on the application. At longer distances, the connection signal lines between the indoor and outdoor units may be interfered with, resulting in communication failure. In addition, this method increases the cost and complexity of on-site installation. Therefore, many situations require independent control of the outdoor unit. This cannot fundamentally solve the problem of the outdoor fan operating when the air conditioner is off and the outdoor temperature is high, that is, it cannot solve the problem of the outdoor fan accidentally starting up in a high-temperature environment.

[0160] The control method for the outdoor fan of an air conditioner provided in this embodiment of the invention ensures that the outdoor fan will not be accidentally turned on due to excessively high ambient temperature when the outdoor temperature is high. The indoor unit can also achieve precise control of the outdoor fan without establishing a communication connection with the outdoor unit, thereby reducing power consumption and extending the bearing life of the outdoor fan.

[0161] The control device for the outdoor fan of an air conditioner provided by the present invention is described below. The control device for the outdoor fan of an air conditioner described below can be referred to in correspondence with the control method for the outdoor fan of an air conditioner described above.

[0162] like Figure 5 As shown, an embodiment of the present invention provides a control device for an outdoor fan of an air conditioner. The device is disposed on the fan speed regulator and includes:

[0163] The acquisition module 510 is used to acquire the condensation temperature and the ambient temperature.

[0164] The determination module 520 is used to determine the ambient temperature range in which the ambient temperature is located, and to determine the corresponding condensation parameter range based on the ambient temperature range.

[0165] The control module 530 is used to determine the wind speed parameter to be used from the correspondence between the preset parameter range and the wind speed parameter based on the condensation temperature and the condensation parameter range, and to control the wind speed of the outdoor fan based on the wind speed parameter to be used.

[0166] As one embodiment of the present invention, when the ambient temperature range is a first temperature range, the condensation parameter range is a first selectable temperature range, which is a range divided based on a first temperature value, and the first temperature value is a temperature value determined based on the ambient temperature.

[0167] The aforementioned control module 530 includes:

[0168] The first determining unit determines a first target wind speed parameter based on the relationship between the condensation temperature and the first temperature value, from the correspondence between a pre-set parameter range and a wind speed parameter, wherein the first target wind speed parameter is the wind speed parameter to be used.

[0169] The first adjustment unit is used to adjust the operating parameters of the outdoor fan to the first target wind speed parameter, so as to adjust the wind speed of the outdoor fan.

[0170] As one embodiment of the present invention, the first determining unit includes:

[0171] The first determining subunit is used to determine the shutdown parameter as the first target wind speed parameter based on the relationship between the condensation temperature and the first temperature value, from the correspondence between the preset parameter range and the wind speed parameter, when the condensation temperature is less than the first temperature value.

[0172] When the condensation temperature is not less than the first temperature value, based on the relationship between the condensation temperature and the first temperature value, a proportional parameter is determined as the first target wind speed parameter from the correspondence between a pre-set parameter range and a wind speed parameter, wherein the proportional parameter is a parameter determined based on the condensation temperature and the pre-set correspondence between temperature and parameter.

[0173] As one embodiment of the present invention, when the ambient temperature range is a first temperature range, the condensation parameter range is a rate of change range, which is a range divided based on a preset change value.

[0174] The aforementioned control module 530 includes:

[0175] The calculation unit is used to calculate the difference between the condensation temperatures at two different times based on the condensation temperatures at two different times, and to calculate the rate of temperature change based on the difference.

[0176] The second determining unit is used to determine a first target wind speed parameter based on the relationship between the temperature change rate and the preset change value, from the correspondence between a preset parameter range and a wind speed parameter, wherein the first target wind speed parameter is the wind speed parameter to be used.

[0177] The second adjustment unit is used by the wind speed regulator to adjust the operating parameters of the outdoor fan to the first target wind speed parameter, so as to adjust the wind speed of the outdoor fan.

[0178] As one embodiment of the present invention, the second determining unit includes:

[0179] The second determining subunit is used to determine the shutdown parameter as the first target wind speed parameter based on the relationship between the temperature change rate and the preset change value, from the correspondence between the preset parameter range and the wind speed parameter, when the temperature change rate is less than the preset change value.

[0180] If the rate of temperature change is not less than the preset change value, based on the relationship between the rate of temperature change and the preset change value, the proportional parameter is determined as the first target wind speed parameter from the correspondence between a preset parameter range and wind speed parameters. The proportional parameter is a parameter determined based on the condensation temperature and the preset correspondence between temperature and parameters.

[0181] As one embodiment of the present invention, when the ambient temperature range is a second temperature range, the condensation parameter range is a second selectable temperature range, which is a range divided based on a first temperature value and a second temperature value, wherein the first temperature value and the second temperature value are temperature values ​​determined based on the ambient temperature.

[0182] The aforementioned control module 530 includes:

[0183] The third determining unit is used to determine a second target wind speed parameter based on the relationship between the condensation temperature and the first temperature value and the second temperature value, from the correspondence between a pre-set parameter range and the wind speed parameter, wherein the second target wind speed parameter is the wind speed parameter to be used.

[0184] The third adjustment unit is used by the wind speed regulator to adjust the operating parameters of the outdoor fan to the second target wind speed parameter, so as to adjust the wind speed of the outdoor fan.

[0185] In one embodiment of the present invention, the second temperature value is higher than the first temperature value.

[0186] The aforementioned third determining unit includes

[0187] The third determining subunit is used to determine a proportional parameter as the second target wind speed parameter based on the relationship between the condensation temperature and the second temperature value, from a pre-set parameter range and the correspondence between wind speed parameters, when the condensation temperature is not less than the second temperature value. The proportional parameter is a parameter determined based on the condensation temperature and the pre-set temperature and parameter correspondence.

[0188] If the condensation temperature is lower than the first temperature value, based on the relationship between the condensation temperature and the first temperature value, the shutdown parameter is determined as the second target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0189] As one embodiment of the present invention, the control module 530 further includes:

[0190] The holding unit is used to determine the fan operating parameters from a pre-set correspondence between the parameter range and the wind speed parameters when the condensation temperature is not less than the first temperature value and less than the second temperature value, and to keep the wind speed of the outdoor fan constant based on the fan operating parameters.

[0191] As one embodiment of the present invention, when the ambient temperature range is a third temperature range, the condensation parameter range is a third selectable temperature range. The third selectable temperature range is a range divided based on a first preset temperature value, a second preset temperature value, and a third preset temperature value. The third preset temperature value is higher than the second preset temperature value, and the second preset temperature value is higher than the first preset temperature value.

[0192] The aforementioned control module 530 includes:

[0193] The fourth determining unit is used to determine the third target wind speed parameter based on the relationship between the condensation temperature and the first preset temperature value, the second preset temperature value and the third preset temperature value, from the correspondence between the preset parameter range and the wind speed parameter.

[0194] The fourth adjustment unit is used to adjust the operating parameters of the outdoor fan to the third target wind speed parameter, so as to adjust the wind speed of the outdoor fan.

[0195] As one embodiment of the present invention, the fourth determining unit includes:

[0196] The fourth determining subunit is used to determine the shutdown parameter as the third target wind speed parameter based on the relationship between the condensation temperature and the first preset temperature value, from the correspondence between the preset parameter range and the wind speed parameter, when the condensation temperature is less than the first preset temperature value.

[0197] When the condensation temperature is not less than the first preset temperature value and less than the second preset temperature value, based on the relationship between the condensation temperature and the first and second preset temperature values, the minimum parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0198] When the condensation temperature is not less than the second preset temperature value and less than the third preset temperature value, based on the relationship between the condensation temperature and the second preset temperature value and the third preset temperature value, a proportional parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter, wherein the proportional parameter is a parameter determined based on the correspondence between the condensation temperature and the preset temperature and parameter.

[0199] If the condensation temperature is not less than the third preset temperature value, based on the relationship between the condensation temperature and the third preset temperature value, the maximum parameter is determined as the third target wind speed parameter from the correspondence between the preset parameter range and the wind speed parameter.

[0200] As one embodiment of the present invention, the acquisition module 510 may include:

[0201] The acquisition unit is used to acquire the condensation pressure.

[0202] The temperature determination unit is used to determine the condensation temperature based on the condensation pressure and a pre-set pressure-temperature correspondence.

[0203] The air conditioner provided by the present invention is described below. The air conditioner described below and the control method of the outdoor fan of the air conditioner described above can be referred to in correspondence.

[0204] This invention provides an air conditioner, which includes an outdoor unit and a fan speed regulator. The fan speed regulator is used to execute any of the above-described air conditioner outdoor fan control methods.

[0205] The air conditioner also includes an indoor unit;

[0206] The outdoor unit also includes a condensation sensor, a condenser, a first temperature sensor, and an outdoor fan. The fan speed regulator is connected to the condensation sensor, the first temperature sensor, and the outdoor fan. The fan speed regulator is also connected to the second temperature sensor or the pressure sensor.

[0207] The indoor unit is connected to the outdoor unit.

[0208] like Figure 6 As shown, when the condenser sensor is the second temperature sensor, the air conditioner includes an indoor unit 610 and an outdoor unit 620. The outdoor unit 620 includes a fan speed regulator 9, a second temperature sensor 7, a condenser 5, a first temperature sensor 8, and an outdoor fan 6.

[0209] like Figure 7 As shown, the indoor unit 610 may include a compressor 1, an evaporator 2, an indoor fan 3, and an expansion valve 4.

[0210] In one embodiment of the present invention, the condensation sensor is a second temperature sensor or a pressure sensor.

[0211] The condensation sensor is either a second temperature sensor or a pressure sensor. The second temperature sensor measures the temperature corresponding to the condenser, and the pressure sensor measures the condensation pressure corresponding to the condenser. The first temperature sensor measures the ambient temperature. The pressure sensor can be located at the condenser outlet or the condenser inlet. Both are reasonable options.

[0212] Figure 8 An example is a schematic diagram of the physical structure of a wind speed regulator, such as... Figure 8 As shown, the fan speed regulator may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840. The processor 810, communication interface 820, and memory 830 communicate with each other via the communication bus 840. The processor 810 can call logic instructions from the memory 830 to execute the control method for the outdoor fan of the air conditioner.

[0213] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0214] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the control method for the outdoor fan of the air conditioner provided by the above methods.

[0215] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for the outdoor fan of an air conditioner provided by the above methods.

[0216] The device embodiments described above are merely illustrative. 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0217] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0218] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method of an outdoor fan of an air conditioner, characterized by, The method is applied to a wind speed regulator, and the method comprises: obtaining a condensation temperature and an ambient temperature; determining an ambient temperature interval in which the ambient temperature is located, and determining a corresponding condensation parameter interval based on the ambient temperature interval; based on the condensation temperature and the condensation parameter interval, determining a to-be-used wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters, and controlling a wind speed of the outdoor fan based on the to-be-used wind speed parameter; in a case where the ambient temperature interval in which the ambient temperature is located is a first temperature interval, the condensation parameter interval is a change rate interval, and the change rate interval is an interval divided based on a preset change value; the step of determining the to-be-used wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on the condensation temperature and the condensation parameter interval, and controlling the wind speed of the outdoor fan based on the to-be-used wind speed parameter, comprises: calculating a difference value of the condensation temperature at two different times based on the condensation temperature at the two different times, and calculating a temperature change rate based on the difference value; determining a first target wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on a relationship between the temperature change rate and the preset change value, wherein the first target wind speed parameter is the to-be-used wind speed parameter; adjusting an operating parameter of the outdoor fan to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

2. The control method of the outdoor fan of the air conditioner according to claim 1, characterized by, in a case where the ambient temperature interval in which the ambient temperature is located is a first temperature interval, the condensation parameter interval is a first to-be-selected temperature interval, and the first to-be-selected temperature interval is an interval divided based on a first temperature value, wherein the first temperature value is a temperature value determined based on the ambient temperature: the step of determining the to-be-used wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on the condensation temperature and the condensation parameter interval, and controlling the wind speed of the outdoor fan based on the to-be-used wind speed parameter, comprises: determining a first target wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first temperature value, wherein the first target wind speed parameter is the to-be-used wind speed parameter; adjusting an operating parameter of the outdoor fan to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

3. The control method of the outdoor fan of the air conditioner according to claim 2, characterized by, the step of determining the first target wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on the relationship between the condensation temperature and the first temperature value, comprises: in a case where the condensation temperature is less than the first temperature value, determining a shutdown parameter as the first target wind speed parameter from the preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first temperature value; In a case where the condensation temperature is not less than the first temperature value, a proportional parameter is determined as the first target wind speed parameter from a preset parameter range and a corresponding relationship between a wind speed parameter based on a relationship between the condensation temperature and the first temperature value, wherein the proportional parameter is a parameter determined based on the condensation temperature and a preset temperature and parameter corresponding relationship.

4. The control method of an outdoor fan of an air conditioner according to claim 1, characterized by, The step of determining the first target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on the relationship between the temperature change rate and the preset change value, comprises: In a case where the temperature change rate is less than the preset change value, a shutdown parameter is determined as the first target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the temperature change rate and the preset change value; In a case where the temperature change rate is not less than the preset change value, a proportional parameter is determined as the first target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the condensation temperature and the preset change value, wherein the proportional parameter is a parameter determined based on the condensation temperature and a preset temperature and parameter corresponding relationship.

5. The control method of an outdoor fan of an air conditioner according to claim 1, characterized by, In a case where the environment temperature is in a second temperature range, the condensation parameter range is a second temperature range to be selected, and the second temperature range to be selected is a range divided based on a first temperature value and a second temperature value, and the first temperature value and the second temperature value are temperature values determined based on the environment temperature; The step of determining the wind speed parameter to be used from the preset parameter range and the corresponding relationship between the wind speed parameter based on the condensation temperature and the condensation parameter range, and controlling the wind speed of the outdoor fan based on the wind speed parameter to be used, comprises: A second target wind speed parameter is determined from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the condensation temperature and the first temperature value and the second temperature value, wherein the second target wind speed parameter is the wind speed parameter to be used; The operating parameter of the outdoor fan is adjusted to the second target wind speed parameter to adjust the wind speed of the outdoor fan.

6. The control method of the outdoor fan of the air conditioner according to claim 5, characterized by, The second temperature value is higher than the first temperature value. The step of determining the second target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the condensation temperature and the first temperature value and the second temperature value, comprises: In a case where the condensation temperature is not less than the second temperature value, a proportional parameter is determined as the second target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the condensation temperature and the second temperature value, wherein the proportional parameter is a parameter determined based on the condensation temperature and a preset temperature and parameter corresponding relationship; In a case where the condensation temperature is less than the first temperature value, a shutdown parameter is determined as the second target wind speed parameter from the preset parameter range and the corresponding relationship between the wind speed parameter based on a relationship between the condensation temperature and the first temperature value.

7. The control method of the outdoor fan of the air conditioner according to claim 6, characterized by, The step of determining the to-be-used wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on the condensation temperature and the condensation parameter interval, and controlling the wind speed of the outdoor fan based on the to-be-used wind speed parameter, further includes: In a case where the condensation temperature is not less than the first temperature value and less than the second temperature value, determining a fan operation parameter from a preset correspondence between parameter intervals and wind speed parameters, and keeping the wind speed of the outdoor fan unchanged based on the fan operation parameter.

8. The control method of an outdoor fan of an air conditioner according to claim 1, characterized by, In a case where the ambient temperature interval in which the ambient temperature is located is a third temperature interval, the condensation parameter interval is a third to-be-selected temperature interval, and the third to-be-selected temperature interval is an interval divided based on a first preset temperature value, a second preset temperature value, and a third preset temperature value; The step of determining the to-be-used wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on the condensation temperature and the condensation parameter interval, and controlling the wind speed of the outdoor fan based on the to-be-used wind speed parameter, includes: Determining a third target wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first preset temperature value, the second preset temperature value, and the third preset temperature value; Adjusting the operation parameter of the outdoor fan to the third target wind speed parameter to adjust the wind speed of the outdoor fan.

9. The control method of the outdoor fan of the air conditioner according to claim 8, characterized by, The third preset temperature value is higher than the second preset temperature value, and the second preset temperature value is higher than the first preset temperature value; The step of determining the third target wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first preset temperature value, the second preset temperature value, and the third preset temperature value, includes: In a case where the condensation temperature is less than the first preset temperature value, determining a stop parameter as the third target wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first preset temperature value; In a case where the condensation temperature is not less than the first preset temperature value and less than the second preset temperature value, determining a minimum parameter as the third target wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the first preset temperature value and the second preset temperature value; In a case where the condensation temperature is not less than the second preset temperature value and less than the third preset temperature value, determining a proportional parameter as the third target wind speed parameter from a preset correspondence between parameter intervals and wind speed parameters based on a relationship between the condensation temperature and the second preset temperature value and the third preset temperature value, where the proportional parameter is a parameter determined based on the condensation temperature and a preset correspondence between temperature and parameter. In a case where the condensing temperature is not less than the third preset temperature value, a maximum parameter is determined as the third target wind speed parameter from a preset parameter interval and a corresponding relationship between wind speed parameters based on a relationship between the condensing temperature and the third preset temperature value.

10. The control method of an outdoor fan of an air conditioner according to any one of claims 1-9, characterized by, The step of obtaining the condensing temperature comprises: obtaining a condensing pressure; determining the condensing temperature based on the condensing pressure and a preset corresponding relationship between pressure and temperature.

11. A control device of an outdoor fan of an air conditioner, characterized by comprising: The device is arranged in a wind speed regulator, and the device comprises: an obtaining module configured to obtain a condensing temperature and an ambient temperature; a determining module configured to determine an ambient temperature interval in which the ambient temperature is located, and determine a corresponding condensing parameter interval based on the ambient temperature interval; a control module configured to determine a to-be-used wind speed parameter from a preset corresponding relationship between parameter intervals and wind speed parameters based on the condensing temperature and the condensing parameter interval, and control a wind speed of the outdoor fan based on the to-be-used wind speed parameter; in a case where the ambient temperature interval in which the ambient temperature is located is a first temperature interval, the condensing parameter interval is a change rate interval, and the change rate interval is an interval divided based on a preset change value; the step of determining the to-be-used wind speed parameter from the preset corresponding relationship between parameter intervals and wind speed parameters based on the condensing temperature and the condensing parameter interval, and controlling the wind speed of the outdoor fan based on the to-be-used wind speed parameter comprises: calculating a difference value of the condensing temperature at two different time points based on the condensing temperature at the two different time points, and calculating a temperature change rate based on the difference value; determining a first target wind speed parameter from the preset corresponding relationship between parameter intervals and wind speed parameters based on a relationship between the temperature change rate and the preset change value, wherein the first target wind speed parameter is the to-be-used wind speed parameter; adjusting an operating parameter of the outdoor fan to the first target wind speed parameter to adjust the wind speed of the outdoor fan.

12. An air conditioner characterized by comprising: The air conditioner comprises an outdoor unit; the outdoor unit comprises a wind speed regulator, and the wind speed regulator is configured to perform the method of any one of claims 1-10.

13. The air conditioner of claim 12, wherein, The air conditioner further comprises an indoor unit connected with the outdoor unit, and the outdoor unit further comprises a condensing sensor, a condenser, a first temperature sensor, and an outdoor fan, wherein the wind speed regulator is connected with the condensing sensor, the first temperature sensor, and the outdoor fan; the condensing sensor is a second temperature sensor or a pressure sensor.

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