Air conditioner outdoor unit control method, device and air conditioner outdoor unit

Abstract

The present invention provides an air-conditioning outdoor unit control method, device and air-conditioning outdoor unit, wherein the air-conditioning outdoor unit control method comprises: in heating mode, obtaining the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit; obtaining the current rotational speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current rotational speed in a windless state; based on the current rotational speed, the first wind speed and the second wind speed, determining the first rotational speed corresponding to the outdoor fan at the first wind speed; controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first rotational speed and the current rotational speed; the present invention controls the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature of the indoor environment, the direction of the first wind speed and the relationship between the first rotational speed and the current rotational speed, rationally utilizes natural resources, and improves the heat exchange efficiency of the outdoor heat exchanger.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a control method and device for an air conditioning outdoor unit, and an air conditioning outdoor unit. Background Art

[0002] With the advancement of science and technology and the continuous improvement of people's living standards, air conditioners are widely used in people's daily lives.

[0003] During cooling or heating operations, the heat released by the outdoor unit's heat exchanger needs to be quickly dissipated into the air using the outdoor fan. Currently, the speed of an air conditioner's outdoor fan is controlled solely based on the unit's own operating conditions, without considering the influence of external wind direction and speed. Different ambient wind parameters have varying effects on the heat exchanger, especially in heating mode. This underutilization of the ambient wind results in wasted resources. Summary of the Invention

[0004] The present invention provides an air-conditioning outdoor unit control method, device and air-conditioning outdoor unit, which are used to solve the problem in the prior art that different parameters of external ambient wind have different effects on the heat exchanger, especially in the heating mode, the external ambient wind cannot be fully utilized, resulting in waste of resources.

[0005] The present invention provides a method for controlling an outdoor unit of an air conditioner, comprising: in a heating mode, obtaining the current temperature of an indoor environment and a first wind speed at which ambient wind enters the outdoor unit of the air conditioner; obtaining the current rotational speed of an outdoor fan, and determining a second wind speed at which the outdoor fan runs at the current rotational speed in a windless state; determining a first rotational speed corresponding to the outdoor fan at the first wind speed based on the current rotational speed, the first wind speed, and the second wind speed; and controlling the operation of the outdoor fan according to a relationship between the current temperature and a preset temperature, a direction of the first wind speed, and a relationship between the first rotational speed and the current rotational speed.

[0006] According to a method for controlling an outdoor unit of an air conditioner provided by the present invention, the operation of the outdoor fan is controlled according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed, including: when the current temperature is lower than the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed; when the current temperature is lower than the preset temperature and the first wind speed is positive, the outdoor fan is controlled to operate at the current speed.

[0007] According to a method for controlling an outdoor unit of an air conditioner provided by the present invention, when the current temperature is lower than the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed, including: when the absolute value of the first speed is greater than or equal to the current speed, controlling the outdoor fan to stop; when the absolute value of the first speed is lower than the current speed, controlling the outdoor fan to operate at a third speed, wherein the third speed is the difference between the current speed and the first speed.

[0008] According to a method for controlling an outdoor unit of an air conditioner provided by the present invention, the operation of the outdoor fan is controlled according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed. The method also includes: when the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed; when the current temperature is greater than or equal to the preset temperature and the first wind speed is positive, the operation of the outdoor fan is controlled to be at a fourth speed, and / or the frequency of the compressor is controlled to be reduced; wherein the fourth speed is the difference between the current speed and the first speed.

[0009] According to a method for controlling an outdoor unit of an air conditioner provided by the present invention, when the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed, including: when the absolute value of the first speed is greater than or equal to the current speed, controlling the outdoor fan to stop; when the absolute value of the first speed is less than the current speed, controlling the outdoor fan to run at the current speed.

[0010] According to a control method for an air-conditioning outdoor unit provided by the present invention, the air-conditioning outdoor unit includes a shell and an outdoor heat exchanger, the shell is provided with a first air inlet, a second air inlet and an air outlet, the first air inlet and the second air inlet are respectively provided on two adjacent side walls of the shell, the air outlet is parallel to the first air inlet and perpendicular to the second air inlet; the outdoor heat exchanger is provided in the shell, and the outdoor heat exchanger is in contact with the external environment through the first air inlet, the second air inlet and the air outlet; obtaining a first wind speed of the ambient wind entering the air-conditioning outdoor unit, including: obtaining a third wind speed of the ambient wind entering the air-conditioning outdoor unit through the first air inlet; obtaining a fourth wind speed of the ambient wind entering the air-conditioning outdoor unit through the second air inlet; determining the first wind speed according to the third wind speed and the fourth wind speed, the first wind speed being equal to the sum of the third wind speed and the fourth wind speed.

[0011] According to a control method for an air-conditioning outdoor unit provided by the present invention, a third wind speed of the ambient wind entering the air-conditioning outdoor unit through the first air inlet is obtained, including: obtaining the fifth wind speed of the ambient wind at the first air inlet; obtaining the length of the first air inlet and the length of the outdoor heat exchanger, and determining a first ratio of the length of the first air inlet to the length of the outdoor heat exchanger; and determining the third wind speed based on the relationship between the fifth wind speed and the first ratio, the third wind speed being equal to the product of the fifth wind speed and the first ratio.

[0012] According to a control method for an air-conditioning outdoor unit provided by the present invention, a fourth wind speed of the ambient wind entering the air-conditioning outdoor unit through the second air inlet is obtained, including: obtaining a sixth wind speed of the ambient wind at the second air inlet; obtaining the length of the second air inlet, and determining a second ratio of the length of the second air inlet to the length of the outdoor heat exchanger; and determining the fourth wind speed based on the direction of the sixth wind speed and the relationship between the sixth wind speed and the second ratio.

[0013] According to a method for controlling an air-conditioning outdoor unit provided by the present invention, the fourth wind speed is determined based on the sixth wind speed and the relationship between the sixth wind speed and the second ratio, including: when the direction of the sixth wind speed is positive, the fourth wind speed is equal to the product of the sixth wind speed and the second ratio; when the direction of the sixth wind speed is negative, the fourth wind speed is equal to 0.

[0014] The present invention also provides an air-conditioning outdoor unit control device, comprising: an acquisition module for acquiring the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit in a heating mode; and also for acquiring the current speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current speed in a windless state; a control module for determining the first speed corresponding to the outdoor fan at the first wind speed based on the current speed, the first wind speed and the second wind speed; and also for controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed.

[0015] The present invention also provides an air-conditioning outdoor unit, comprising any of the air-conditioning outdoor unit control devices described above, and also comprising a shell and an outdoor heat exchanger, the shell being provided with a first air inlet, a second air inlet and an air outlet, the first air inlet and the second air inlet being respectively arranged on two adjacent side walls of the shell, the air outlet being parallel to the first air inlet and perpendicular to the second air inlet; the outdoor heat exchanger being arranged in the shell, and the outdoor heat exchanger being in contact with the external environment through the first air inlet, the second air inlet and the air outlet.

[0016] The air-conditioning outdoor unit control method, device and air-conditioning outdoor unit provided by the present invention obtain the current temperature of the indoor environment in real time through the temperature monitoring device in the heating mode, and understand the environmental parameters of the user; obtain the first wind speed of the ambient wind entering the air-conditioning outdoor unit through the wind speed detection device, and understand the parameters of the ambient wind; determine the first speed of the outdoor fan when it runs at the first wind speed in the windless state based on the second wind speed, the current speed and the first wind speed of the outdoor fan, and understand the speed at which the ambient wind can drive the outdoor fan to rotate when the outdoor fan is stopped; further, based on the relationship between the current temperature of the indoor environment and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed, control the operation of the outdoor fan, rationally utilize natural resources, and improve the heat exchange efficiency of the outdoor heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a flow chart of the air-conditioning outdoor unit control method provided by the present invention;

[0019] Figure 2 It is a structural diagram of the air-conditioning outdoor unit provided by the present invention;

[0020] Figure 3 It is a structural schematic diagram of the electronic device provided by the present invention;

[0021] Reference numerals:

[0022] 1. Shell; 2: First air inlet; 3: Second air inlet; L2: Length of the first air inlet; L3: Length of the second air inlet. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] The following combination Figures 1 to 3 The present invention describes an air-conditioning outdoor unit control method, device and air-conditioning outdoor unit.

[0025] The air-conditioning outdoor unit control method provided in this embodiment includes: step 100, in the heating mode, obtaining the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit; step 200, obtaining the current speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current speed in a windless state; step 300, based on the current speed, the first wind speed and the second wind speed, determining the first wind speed; step 400, according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed, controlling the operation of the outdoor fan.

[0026] Currently, the operation of air conditioner outdoor units fails to consider the impact of indoor ambient temperature and outdoor ambient wind. This results in a discrepancy between the outdoor heat exchange effect and the actual heat exchange effect, and the outdoor ambient wind cannot be properly utilized. Therefore, the air conditioner outdoor unit control method provided in this embodiment controls the operation of the air conditioner outdoor fan based on the actual parameters of the indoor ambient temperature and outdoor ambient wind.

[0027] Step 100, in the heating mode, obtain the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit; in the heating mode of the air conditioner, use the temperature monitoring device to detect the current temperature of the indoor environment in real time to understand the actual parameters of the user's environment; use the wind speed detection device to obtain the first wind speed of the outdoor ambient wind entering the air-conditioning outdoor unit to understand the parameters of the ambient wind, wherein the first wind speed is a vector with direction and magnitude. When the ambient wind entering the air-conditioning outdoor unit is consistent with the air inlet direction of the air inlet, the first wind speed is a positive value. When the ambient wind entering the air-conditioning outdoor unit is opposite to the air inlet direction of the air inlet, the first wind speed is a negative value.

[0028] Step 200, obtain the current speed of the outdoor fan, and determine the second wind speed of the outdoor fan running at the current speed in a windless state; by obtaining the current speed of the outdoor fan, understand the current operating status of the outdoor fan.

[0029] In a windless state, the air-conditioning outdoor unit is controlled to operate at different speeds, and the corresponding wind speed is obtained to determine the relationship between the speed and wind speed of the outdoor fan in a windless state; further, the second wind speed of the outdoor fan is determined when the air-conditioning outdoor fan operates at the current speed in a windless state.

[0030] Step 300, based on the current rotational speed, the first wind speed and the second wind speed, determines the first rotational speed corresponding to the outdoor fan at the first wind speed; this embodiment obtains the first wind speed of the ambient wind entering the air-conditioning outdoor unit, and the first wind speed can drive the outdoor fan to rotate, so as to obtain the first rotational speed of the outdoor fan corresponding to the first wind speed in a windless state, and then understand the influence of the first wind speed entering the air-conditioning outdoor unit on the rotational speed of the outdoor fan.

[0031] Specifically, in a windless state, the wind speed of the outdoor fan at different speeds is obtained, and then the relationship between the speed and wind speed of the outdoor fan is obtained. For example, in a windless state, when the outdoor fan runs at the current speed N, the wind speed is the second wind speed F2, and F2=KN; further, in a windless state, when the outdoor fan runs at the first wind speed F1, the first speed N1 of the outdoor fan is equal to F1 / K, that is, N1=F1N / F2.

[0032] In another embodiment, in a windless state, the wind speed of the outdoor fan when running at the current speed N is a second wind speed F2, F2 = KN + m (m is a constant); further, in a windless state, when the outdoor fan runs at a first wind speed F1, the first speed N1 of the outdoor fan is equal to F1 / K, that is, N1 = F1N / F2-m.

[0033] In this embodiment, the calculation method of the first rotational speed is not specifically limited and is limited according to the operating conditions of the outdoor fan. The calculation method of the first rotational speed is different in different operating conditions.

[0034] Step 400, based on the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first rotational speed and the current rotational speed, the operation of the outdoor fan is controlled; in the heating mode, the current temperature of the indoor environment affects the user's feeling, and based on the relationship between the current temperature and the preset temperature, the parameters and comfort level of the user's environment are understood; based on the comparison result of the direction of the first wind speed and the first rotational speed corresponding to the first wind speed with the current rotational speed of the outdoor fan, the influence of the outdoor ambient wind on the indoor fan is understood, the operation of the outdoor fan is controlled, the ambient wind is reasonably utilized, and the heat exchange effect of the air-conditioning outdoor unit is improved.

[0035] In the heating mode, this embodiment obtains the current temperature of the indoor environment in real time through the temperature monitoring device to understand the environmental parameters of the user; obtains the first wind speed of the ambient wind entering the air-conditioning outdoor unit through the wind speed detection device to understand the parameters of the ambient wind; determines the first speed of the outdoor fan when it runs at the first wind speed in the windless state based on the second wind speed, the current speed and the first wind speed when the outdoor fan runs at the current speed in the windless state, and understands the speed at which the ambient wind can drive the outdoor fan to rotate when the outdoor fan is stopped; further, based on the relationship between the current temperature of the indoor environment and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed, controls the operation of the outdoor fan, rationally utilizes natural resources, and improves the heat exchange efficiency of the outdoor heat exchanger.

[0036] In this embodiment, the first wind speed of the ambient wind entering the air-conditioning outdoor unit is F1, the current speed of the outdoor fan is N, the second wind speed of the outdoor fan running at the current speed N in a windless state is F2, and when the wind speed of the outdoor fan running in a windless state is F1, the first speed of the outdoor fan is N1, that is, when the outdoor fan is stopped, the ambient wind enters the air-conditioning outdoor unit at the first wind speed F1, which can drive the first speed of the outdoor fan to N1.

[0037] In a windless state, the second wind speed F2 when the outdoor fan runs at the current speed N is a positive value; when the direction of the first wind speed of the ambient wind entering the air-conditioning outdoor unit is the same as the air inlet direction of the air inlet, F1>0, which is a positive value, and the first speed N1 is a positive value; when the direction of the first wind speed of the ambient wind entering the air-conditioning outdoor unit is opposite to the air inlet direction of the air inlet, F1<0, which is a negative value, and the first speed N1 is a negative value.

[0038] On the basis of the above embodiments, further, according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed, the operation of the outdoor fan is controlled, including: when the current temperature is lower than the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed; when the current temperature is lower than the preset temperature and the first wind speed is positive, the outdoor fan is controlled to operate at the current speed.

[0039] In heating mode, the current temperature of the indoor environment obtained by the temperature monitoring device is 15°C. At this time, the current temperature of 15°C is lower than the preset temperature of 20°C. At this time, the indoor environment temperature is low, the user comfort level is low, and the indoor environment temperature needs to be quickly increased.

[0040] Furthermore, the parameters of the first wind speed are obtained through the wind speed detection device. When the first wind speed is negative, the ambient wind is not conducive to heat exchange of the outdoor heat exchanger. When the outdoor fan is stopped, the absolute value of the first rotational speed of the outdoor fan can be driven by the ambient wind entering the air-conditioning outdoor unit at the first wind speed. The absolute value of the first rotational speed is compared with the current rotational speed, and the operation of the outdoor fan is controlled according to the comparison result.

[0041] When the first wind speed is positive, the ambient wind is beneficial to the heat exchange of the outdoor heat exchanger. The speed of the outdoor fan is controlled to remain unchanged and continue to run at the current speed. The ambient wind can accelerate the heat exchange efficiency of the outdoor heat exchanger, quickly increase the indoor ambient temperature, and improve user comfort.

[0042] On the basis of the above embodiment, further, when the current temperature is lower than the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed, including: when the absolute value of the first speed is greater than or equal to the current speed, the outdoor fan is controlled to stop; when the absolute value of the first speed is lower than the current speed, the outdoor fan is controlled to operate at a third speed, and the third speed is the difference between the current speed and the first speed.

[0043] When the current temperature of the indoor environment is lower than the preset temperature and the first wind speed of the ambient wind entering the air-conditioning outdoor unit is negative, the ambient wind is not conducive to heat exchange in the outdoor heat exchanger. When the outdoor fan is stopped, the absolute value of the first rotational speed of the outdoor fan can be driven by the ambient wind entering the air-conditioning outdoor unit at the first wind speed. When the absolute value of the first rotational speed is greater than or equal to the current rotational speed, the current rotational speed of the outdoor fan is controlled to increase in order to resist the negative impact of the ambient wind, but a large amount of resources are consumed. Based on this, this example controls the outdoor fan to stop so that the ambient wind enters from the air outlet and blows out from the air inlet after heat exchange, and the absolute value of the first rotational speed is greater than or equal to the current rotational speed. At this time, the heat exchange efficiency of the outdoor heat exchanger is higher than or equal to the efficiency when the outdoor fan runs at the current rotational speed, thereby quickly increasing the indoor environment temperature, while also saving resources and improving user experience.

[0044] When the absolute value of the first speed is less than the current speed, the current speed of the outdoor fan is controlled to increase and run at a third speed to resist the negative impact of the ambient wind, accelerate the increase in indoor ambient temperature, and improve user experience; the third speed is the difference between the current speed and the first speed, and the first speed is a negative value, that is, the speed of the outdoor fan is controlled to increase by the absolute value of the first speed.

[0045] On the basis of the above embodiments, the operation of the outdoor fan is controlled according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed, and also includes: when the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed; when the current temperature is greater than or equal to the preset temperature and the first wind speed is positive, the outdoor fan is controlled to operate at a fourth speed, and / or the frequency of the compressor is controlled to be reduced; wherein the fourth speed is the difference between the current speed and the first speed.

[0046] In heating mode, the current temperature of the indoor environment obtained by the temperature monitoring device is 22°C. At this time, the current temperature of 22°C is greater than the preset temperature of 20°C. At this time, the indoor environment temperature is high, the user comfort is improved, and the user is less sensitive to the temperature of the indoor environment, so the indoor environment temperature can be slowly increased.

[0047] Furthermore, the parameters of the first wind speed are obtained through the wind speed detection device. When the first wind speed is negative, the ambient wind is not conducive to heat exchange of the outdoor heat exchanger. When the outdoor fan is stopped, the absolute value of the first rotational speed of the outdoor fan can be driven by the ambient wind entering the air-conditioning outdoor unit at the first wind speed. The absolute value of the first rotational speed is compared with the current rotational speed, and the operation of the outdoor fan is controlled according to the comparison result.

[0048] When the first wind speed is positive, the ambient wind is beneficial to the heat exchange of the outdoor heat exchanger. However, the current temperature of the indoor environment is high at this time, so there is no need to speed up the heat exchange, and the current heat exchange efficiency can be maintained. Based on this, this embodiment controls the wind speed of the outdoor fan to be reduced to run at the fourth wind speed, wherein the fourth wind speed is the difference between the current speed of the outdoor fan and the first speed, wherein the first speed is a positive value, that is, the current speed of the outdoor fan is controlled to be reduced by the first speed, so that the outdoor fan and the ambient wind jointly adjust the heat exchange speed of the outdoor heat exchanger, that is, the effect of the speed of the outdoor fan and the first wind speed entering the air-conditioning outdoor unit on the outdoor heat exchanger is equivalent to the effect of the outdoor fan running at the current speed, thereby avoiding the outdoor fan speed being too high and causing waste of resources.

[0049] In one embodiment, when the current temperature of the indoor environment is greater than or equal to the preset temperature and the first wind speed is positive, the speed of the outdoor fan is controlled to be reduced to run at the fourth speed, and the frequency of the compressor is controlled to be reduced to save energy.

[0050] On the basis of the above embodiment, further, when the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, the operation of the outdoor fan is controlled according to the relationship between the absolute value of the first speed and the current speed, including: when the absolute value of the first speed is greater than or equal to the current speed, the outdoor fan is controlled to stop; when the absolute value of the first speed is less than the current speed, the outdoor fan is controlled to run at the current speed.

[0051] In the heating mode, the current temperature of the outdoor environment is greater than or equal to the preset temperature, and the first wind speed of the ambient wind entering the air-conditioning outdoor unit is negative. At this time, the ambient wind is not conducive to heat exchange in the outdoor heat exchanger. When the outdoor fan is stopped, the absolute value of the first rotational speed of the outdoor fan can be driven by the ambient wind entering the air-conditioning outdoor unit at the first wind speed. When the absolute value of the first rotational speed is greater than the current rotational speed, the current rotational speed of the outdoor fan is controlled to increase to resist the negative impact of the ambient wind, but it requires a lot of resources. Based on this, this example controls the outdoor fan to stop so that the ambient wind enters from the air outlet and blows out from the air inlet after heat exchange, and the absolute value of the first rotational speed is greater than the current rotational speed. At this time, the heat exchange efficiency of the outdoor heat exchanger is higher than the efficiency when the outdoor fan is running at the current speed, which accelerates the increase in indoor ambient temperature without consuming energy, thereby improving user experience.

[0052] In one embodiment, when the current temperature of the indoor environment is greater than or equal to the preset temperature, the first wind speed is negative, and the absolute value of the first speed is greater than or equal to the current speed, the outdoor fan is controlled to stop and the frequency of the compressor is controlled to be reduced to save energy.

[0053] When the current temperature of the indoor environment is greater than or equal to the preset temperature, the first wind speed is negative, and the absolute value of the first rotational speed is less than the current rotational speed, the ambient wind is not conducive to heat exchange by the outdoor heat exchanger. However, the indoor ambient temperature is high at this time, the user is less sensitive to temperature, and there is no need to heat up quickly. Based on this, this embodiment controls the rotational speed of the outdoor fan to remain unchanged, operate at the current rotational speed, and slowly increase the indoor ambient temperature.

[0054] In this embodiment, the preset temperature is not limited to 20° C. and is limited according to actual conditions.

[0055] The air-conditioning outdoor unit in this embodiment includes a shell and an outdoor heat exchanger, the shell is provided with a first air inlet, a second air inlet and an air outlet, the first air inlet and the second air inlet are respectively provided on two adjacent side walls of the shell, the air outlet is parallel to the first air inlet and perpendicular to the second air inlet; the outdoor heat exchanger is provided in the shell, and the outdoor heat exchanger is in contact with the external environment through the first air inlet, the second air inlet and the air outlet; obtaining a first wind speed of the ambient wind entering the air-conditioning outdoor unit includes: obtaining a third wind speed of the ambient wind entering the air-conditioning outdoor unit through the first air inlet; obtaining a fourth wind speed of the ambient wind entering the air-conditioning outdoor unit through the second air inlet; determining a first wind speed based on the third wind speed and the fourth wind speed, the first wind speed being equal to the sum of the third wind speed and the fourth wind speed.

[0056] The outdoor unit of the air conditioner includes a shell and an outdoor heat exchanger. The shell is provided with an air inlet and an air outlet. The outdoor heat exchanger is arranged inside the shell and located between the air inlet and the air outlet. The outdoor ambient air enters from the air inlet, exchanges heat in the outdoor heat exchanger, and then blows out through the air outlet. Figure 2 The shell is provided with two air inlets, namely a first air inlet and a second air inlet, the first air inlet is arranged on the first side wall of the shell, and the second air inlet is arranged on the second side wall of the shell, the first side wall and the second side wall are adjacent to each other, and the first side wall and the second side wall are perpendicular to each other; further, the air outlet is arranged on the third side wall of the shell, the third side wall is parallel to the first side wall and perpendicular to the second side wall; that is, the outdoor ambient wind can enter the outdoor heat exchanger through the first air inlet and / or the second air inlet for heat exchange and be blown out from the air outlet, or it can enter the outdoor heat exchanger from the air outlet and then be blown out from the first air inlet.

[0057] In this embodiment, a wind speed detection device is set at the first air inlet to obtain the third wind speed F3 of the ambient wind entering the air-conditioning outdoor unit, wherein the third wind speed F3 is a vector. When the direction of the ambient wind entering the air-conditioning outdoor unit through the first air inlet is the same as the air inlet direction of the first air inlet, the third wind speed is positive, that is, the third wind speed is a positive value; when the direction of the ambient wind entering the air-conditioning outdoor unit through the first air inlet is opposite to the air inlet direction of the first air inlet, the third wind speed F3 is negative, that is, the third wind speed F3 is a negative value.

[0058] In this embodiment, a wind speed detection device is set at the second air inlet to obtain the fourth wind speed F4 of the ambient wind entering the air-conditioning outdoor unit, wherein the fourth wind speed F4 is a vector. When the direction of the ambient wind entering the air-conditioning outdoor unit through the second air inlet is the same as the air inlet direction of the second air inlet, the fourth wind speed F4 is positive, that is, the fourth wind speed F4 is a positive value; when the direction of the ambient wind entering the air-conditioning outdoor unit through the second air inlet is opposite to the air inlet direction of the second air inlet, the fourth wind speed F4 is negative, that is, the fourth wind speed F4 is a negative value.

[0059] Furthermore, the first wind speed is determined by the third wind speed F3 and the fourth wind speed F4, that is, the first wind speed F1 is equal to the vector sum of the third wind speed F3 and the fourth wind speed F4, that is, F1 = F3 + F4.

[0060] Based on the above embodiment, obtaining the third wind speed of the ambient wind entering the air-conditioning outdoor unit through the first air inlet includes: obtaining the fifth wind speed of the ambient wind at the first air inlet; obtaining the length of the first air inlet and the length of the outdoor heat exchanger, and determining a first ratio of the length of the first air inlet to the length of the outdoor heat exchanger; determining the third wind speed based on the relationship between the fifth wind speed and the first ratio, the third wind speed being equal to the product of the fifth wind speed and the first ratio.

[0061] Obtain the fifth wind speed F5 of the ambient wind at the first air inlet, and understand the parameters of the ambient wind at the first air inlet, where the fifth wind speed F5 is a vector; obtain the length L1 of the outdoor heat exchanger through the measuring device, the height of the outdoor heat exchanger is consistent with the height direction of the shell, obtain the length L2 of the first air inlet, that is, the length of the outdoor heat exchanger in contact with the external environment through the first air inlet, the width of the first air inlet is the same as the width of the outdoor heat exchanger, both are the height of the shell, determine the first ratio of the length L2 of the first air inlet to the length L1 of the outdoor heat exchanger, and understand the relationship between the length of the first air inlet and the length of the outdoor heat exchanger.

[0062] Furthermore, the third wind speed F3 of the ambient air at the first air inlet entering the air conditioner outdoor unit through the first air inlet is the product of the fifth wind speed F5 and the first ratio, that is, F3=F5×L2 / L1.

[0063] Based on the above embodiment, obtaining the fourth wind speed of the ambient wind entering the air-conditioning outdoor unit through the second air inlet includes: obtaining the sixth wind speed of the ambient wind at the second air inlet; obtaining the length of the second air inlet, and determining the second ratio of the length of the second air inlet to the length of the outdoor heat exchanger; and determining the fourth wind speed based on the direction of the sixth wind speed and the relationship between the sixth wind speed and the second ratio.

[0064] Obtain the sixth wind speed F6 of the ambient wind at the second air inlet, and understand the parameters of the ambient wind at the second air inlet, where the sixth wind speed F6 is a vector; obtain the length L3 of the second air inlet through the measuring device, that is, the length of the outdoor heat exchanger in contact with the external environment through the second air inlet, and the width of the second air inlet is the same as the width of the outdoor heat exchanger, both of which are the height of the shell. Determine the second ratio of the length L3 of the second air inlet to the length L1 of the outdoor heat exchanger, that is, L3 / L1, to understand the relationship between the length of the second air inlet and the length of the outdoor heat exchanger.

[0065] It is determined whether the direction of the sixth wind speed is consistent with the air inlet direction at the second air inlet, and the fourth wind speed is determined based on the relationship between the sixth wind speed F6 and the second ratio.

[0066] Furthermore, the fourth wind speed is determined based on the direction of the sixth wind speed and the relationship between the sixth wind speed and the second ratio, including: when the direction of the sixth wind speed is positive, the fourth wind speed is equal to the product of the sixth wind speed and the second ratio; when the direction of the sixth wind speed is negative, the fourth wind speed is equal to 0.

[0067] When the direction of the ambient wind at the second air inlet is the same as the air inlet direction of the second air inlet, the sixth wind speed F6 is positive, and the fourth wind speed F4 of the ambient wind from the second air inlet entering the air-conditioning outdoor unit is the product of the sixth wind speed F6 and the second ratio, that is, F4 = F6 × L3 / L1.

[0068] When the direction of the ambient wind at the second air inlet is opposite to the air inlet direction of the second air inlet, the sixth wind speed F6 is negative. Since the second air inlet is perpendicular to the air outlet, the outdoor ambient wind cannot enter through the air outlet and blow out from the second air inlet. The ambient wind at the sixth wind speed does not affect the heat exchange of the outdoor heat exchanger, and the fourth wind speed is zero, that is, F4=0.

[0069] The first wind speed F1 of the ambient wind entering the air-conditioning outdoor unit is equal to the sum of the third wind speed F3 and the fourth wind speed F4, wherein F3 = F5 × L2 / L1, F4 = F6 × L3 / L1, that is, F1 = F5 × L2 / L1 + F6 × L3 / L1, wherein F1, F5, and F6 are all vectors; determine the second wind speed of the outdoor fan when it runs at the current speed in a windless state, and further, based on the current speed, the first wind speed, and the second wind speed, determine the first speed N1 of the outdoor fan when the air-conditioning outdoor fan runs at the first wind speed F1, that is, the speed of the outdoor fan to reach the first wind speed F1, when the first wind speed F1 is positive, the first speed N1 is a positive value, and when the first wind speed F1 is negative, the first speed N1 is a negative value.

[0070] Furthermore, in the heating mode, the operation of the outdoor fan is controlled according to the relationship between the current temperature of the indoor environment and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed, so as to rationally utilize the ambient wind, improve the heat exchange efficiency of the outdoor heat exchanger, and avoid the outdoor fan generating useless work and causing waste of resources.

[0071] The air-conditioning outdoor unit control device provided by the present invention is described below. The air-conditioning outdoor unit control device described below and the air-conditioning outdoor unit control method described above can be referenced to each other.

[0072] This embodiment also provides an air-conditioning outdoor unit control device, which includes: an acquisition module for acquiring the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit in the heating mode; and also for acquiring the current speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current speed in a windless state; a control module for determining the first speed corresponding to the outdoor fan at the first wind speed based on the current speed, the first wind speed and the second wind speed; and also for controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed.

[0073] This embodiment also provides an air-conditioning outdoor unit, including the above-mentioned air-conditioning outdoor unit control device, and also including a shell and an outdoor heat exchanger. The shell 1 is provided with a first air inlet 2, a second air inlet 3 and an air outlet. The first air inlet 2 and the second air inlet 3 are respectively arranged on two adjacent side walls of the shell, and the air outlet is parallel to the first air inlet 2 and perpendicular to the second air inlet 3; the outdoor heat exchanger is arranged in the shell 1, and the outdoor heat exchanger is in contact with the external environment through the first air inlet 2, the second air inlet 3 and the air outlet.

[0074] refer to Figure 2The outdoor unit of the air conditioner includes a housing 1 and an outdoor heat exchanger. The housing 1 is provided with an air inlet and an air outlet. The outdoor heat exchanger is arranged inside the housing 1 and located between the air inlet and the air outlet. The outdoor ambient air enters from the air inlet, exchanges heat in the outdoor heat exchanger, and is then blown out through the air outlet. Figure 2 The shell 1 is provided with two air inlets, namely a first air inlet 2 and a second air inlet 3. The first air inlet 2 is arranged on the first side wall of the shell 1, and the second air inlet 3 is arranged on the second side wall of the shell. The first side wall and the second side wall are adjacent to each other, and the first side wall and the second side wall are perpendicular to each other; further, the air outlet is arranged on the third side wall of the shell, and the third side wall is parallel to the first side wall and perpendicular to the second side wall; that is, the outdoor ambient wind can enter the outdoor heat exchanger through the first air inlet 2 and / or the second air inlet 3 for heat exchange and be blown out from the air outlet, or it can enter the outdoor heat exchanger from the air outlet and then be blown out from the first air inlet 2.

[0075] Furthermore, the sum of the length L2 of the first air inlet and the length L3 of the second air inlet is equal to the sum of the contact lengths of the outdoor heat exchanger with the external environment, and the height of the outdoor heat exchanger is the same as the width of the first air inlet 2 and the width of the second air inlet 3.

[0076] Figure 3 It is a structural diagram of an electronic device, such as Figure 3 As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330, and a communication bus 340, wherein the processor 310, the communication interface 320, and the memory 330 communicate with each other via the communication bus 340. The processor 310 may call logic instructions in the memory 330 to execute a method for controlling an air conditioner outdoor unit, the method comprising: in a heating mode, obtaining the current temperature of the indoor environment and a first wind speed at which the ambient wind enters the air conditioner outdoor unit; obtaining the current speed of the outdoor fan, and determining a second wind speed at which the outdoor fan runs at the current speed in a windless state; determining a first speed corresponding to the outdoor fan at the first wind speed based on the current speed, the first wind speed, and the second wind speed; and controlling the operation of the outdoor fan according to a relationship between the current temperature and a preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed.

[0077] In addition, the logic instructions in the above-mentioned memory 330 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0078] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the air-conditioning outdoor unit control method provided by the above methods, the method including: in heating mode, obtaining the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit; obtaining the current speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current speed in a windless state; based on the current speed, the first wind speed and the second wind speed, determining the first speed corresponding to the outdoor fan at the first wind speed; controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed.

[0079] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned air-conditioning outdoor unit control method, the method comprising: in heating mode, obtaining the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air-conditioning outdoor unit; obtaining the current speed of the outdoor fan, and determining the second wind speed of the outdoor fan running at the current speed in a windless state; based on the current speed, the first wind speed and the second wind speed, determining the first speed corresponding to the outdoor fan at the first wind speed; and controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed and the relationship between the first speed and the current speed.

[0080] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0081] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for controlling an outdoor unit of an air conditioner, characterized in that: The air conditioner outdoor unit includes a shell and an outdoor heat exchanger, the shell is provided with a first air inlet, a second air inlet and an air outlet, the first air inlet and the second air inlet are respectively provided on two adjacent side walls of the shell, the air outlet is parallel to the first air inlet and perpendicular to the second air inlet; The outdoor heat exchanger is disposed in the housing and contacts the external environment through the first air inlet, the second air inlet, and the air outlet; comprising: In heating mode, obtain the current temperature of the indoor environment and the first wind speed of the ambient air entering the air conditioner outdoor unit; Obtaining a current rotational speed of the outdoor fan, and determining a second wind speed of the outdoor fan at the current rotational speed in a windless state; Determining a first speed of the outdoor fan corresponding to the first wind speed based on the current speed, the first wind speed, and the second wind speed; controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first rotational speed and the current rotational speed; Obtain the initial wind speed of the ambient air entering the air conditioner outdoor unit, including: Obtaining a third wind speed of ambient air entering the air conditioner outdoor unit through the first air inlet; Obtaining a fourth wind speed of ambient air entering the air conditioner outdoor unit through the second air inlet; Determining the first wind speed according to the third wind speed and the fourth wind speed, wherein the first wind speed is equal to the sum of the third wind speed and the fourth wind speed; Obtaining a third wind speed of ambient air entering the air conditioner outdoor unit through the first air inlet includes: Obtaining a fifth wind speed of the ambient wind at the first air inlet; Obtaining a length of the first air inlet and a length of the outdoor heat exchanger, and determining a first ratio of the length of the first air inlet to the length of the outdoor heat exchanger; The third wind speed is determined according to the relationship between the fifth wind speed and the first ratio, and the third wind speed is equal to the product of the fifth wind speed and the first ratio.

2. The air conditioner outdoor unit control method according to claim 1, characterized in that: Controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first rotational speed and the current rotational speed includes: When the current temperature is lower than the preset temperature and the first wind speed is negative, controlling the outdoor fan to operate according to a relationship between the absolute value of the first speed and the current speed; When the current temperature is lower than the preset temperature and the first wind speed is positive, the outdoor fan is controlled to run at the current speed.

3. The air conditioner outdoor unit control method according to claim 2, characterized in that: When the current temperature is lower than the preset temperature and the first wind speed is negative, controlling the outdoor fan to operate according to a relationship between the absolute value of the first speed and the current speed includes: When the absolute value of the first speed is greater than or equal to the current speed, controlling the outdoor fan to stop; When the absolute value of the first speed is smaller than the current speed, the outdoor fan is controlled to operate at a third speed, where the third speed is a difference between the current speed and the first speed.

4. The air conditioner outdoor unit control method according to claim 1, characterized in that: Controlling the operation of the outdoor fan according to the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first rotational speed and the current rotational speed further includes: When the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, controlling the outdoor fan to operate according to a relationship between the absolute value of the first speed and the current speed; When the current temperature is greater than or equal to the preset temperature and the first wind speed is positive, the outdoor fan is controlled to operate at a fourth speed, and / or the frequency of the compressor is controlled to be reduced; wherein the fourth speed is the difference between the current speed and the first speed.

5. The air conditioner outdoor unit control method according to claim 4, characterized in that: When the current temperature is greater than or equal to the preset temperature and the first wind speed is negative, controlling the outdoor fan to operate according to a relationship between the absolute value of the first speed and the current speed includes: When the absolute value of the first speed is greater than or equal to the current speed, controlling the outdoor fan to stop; When the absolute value of the first speed is smaller than the current speed, the outdoor fan is controlled to operate at the current speed.

6. The air conditioner outdoor unit control method according to claim 1, characterized in that: Obtaining a fourth wind speed of ambient air entering the air conditioner outdoor unit through the second air inlet includes: Obtaining a sixth wind speed of the ambient wind at the second air inlet; Obtaining a length of the second air inlet, and determining a second ratio of the length of the second air inlet to the length of the outdoor heat exchanger; The fourth wind speed is determined according to the direction of the sixth wind speed and the relationship between the sixth wind speed and the second ratio.

7. The air conditioner outdoor unit control method according to claim 6, characterized in that: Determining the fourth wind speed according to the direction of the sixth wind speed and the relationship between the sixth wind speed and the second ratio includes: When the direction of the sixth wind speed is positive, the fourth wind speed is equal to the product of the sixth wind speed and the second ratio; When the direction of the sixth wind speed is negative, the fourth wind speed is equal to 0.

8. An air-conditioning outdoor unit control device, configured to execute the air-conditioning outdoor unit control method according to any one of claims 1 to 7, characterized in that: include: An acquisition module is used to obtain the current temperature of the indoor environment and the first wind speed of the ambient wind entering the air conditioner outdoor unit in the heating mode; It is also used to obtain the current speed of the outdoor fan and determine the second wind speed of the outdoor fan running at the current speed in a windless state; it is also used to obtain the third wind speed of the ambient air entering the air-conditioning outdoor unit through the first air inlet; it is also used to obtain the fourth wind speed of the ambient air entering the air-conditioning outdoor unit through the second air inlet; it is also used to obtain the fifth wind speed of the ambient wind at the first air inlet; it is also used to obtain the length of the first air inlet and the length of the outdoor heat exchanger, and determine a first ratio of the length of the first air inlet to the length of the outdoor heat exchanger; a control module, configured to determine a first speed of the outdoor fan corresponding to the first wind speed based on the current speed, the first wind speed, and the second wind speed; It is also used to control the operation of the outdoor fan based on the relationship between the current temperature and the preset temperature, the direction of the first wind speed, and the relationship between the first speed and the current speed; it is also used to determine the first wind speed based on the third wind speed and the fourth wind speed, the first wind speed being equal to the sum of the third wind speed and the fourth wind speed; it is also used to determine the third wind speed based on the relationship between the fifth wind speed and the first ratio, the third wind speed being equal to the product of the fifth wind speed and the first ratio.

9. An air conditioner outdoor unit, characterized in that: It includes the air-conditioning outdoor unit control device as described in claim 8, and also includes a shell and an outdoor heat exchanger, the shell is provided with a first air inlet, a second air inlet and an air outlet, the first air inlet and the second air inlet are respectively provided on two adjacent side walls of the shell, and the air outlet is parallel to the first air inlet and perpendicular to the second air inlet; the outdoor heat exchanger is provided in the shell, and the outdoor heat exchanger is in contact with the external environment through the first air inlet, the second air inlet and the air outlet.

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