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

Abstract

The invention provides an air conditioner outdoor unit, an air conditioner and a control method thereof.The air conditioner outdoor unit comprises an outdoor unit shell, the outdoor unit shell comprises a base plate, a top cover and side plates, the base plate, the top cover and the side plates jointly define an internal containing space of the outdoor unit shell, and the side plates comprise the front side plate, the rear side plate, the left side plate and the right side plate; an air outlet, a first air inlet and a second air inlet are formed in each side plate, and a plurality of shutter blades capable of being controlled to be opened and closed are arranged in each air inlet. The corresponding adjustment of the air inlet and outlet quantity and the real-time air direction of each air inlet and outlet is realized by selectively controlling the opening and closing of each shutter blade on each side plate and the rotation angle, so that the situation that the rotation resistance of the outer fan is increased due to the fact that too much airflow with high air speed in the external environment enters the internal accommodating space can be prevented; and therefore, burnout of the motor or protection shutdown of the air conditioner caused by locked-rotor is prevented, reliable operation of the air conditioner under the strong wind weather conditions such as typhoon days is ensured, and the use experience of a user is improved.

Description

Technical Field

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

[0002] In extreme weather conditions such as typhoons, the outdoor unit of traditional wall-mounted air conditioners is exposed to the outside and is easily affected by strong winds, dust, etc. Among them, strong winds will not only hinder the normal start-up of the outdoor unit's fan blades, but will even cause the outdoor unit fan (usually an axial flow fan) to overheat and be damaged due to excessive wind resistance during the operation of the outdoor unit's fan blades. Therefore, many users have to turn off the air conditioner when a typhoon comes. During this period, the doors and windows are usually closed, resulting in stuffiness in the room, which seriously affects the living comfort.

[0003] Faced with this challenge, the market urgently needs an air conditioner that can operate stably in extremely severe weather (such as typhoons). Summary of the invention

[0004] Therefore, the present invention provides an air conditioner outdoor unit, an air conditioner and a control method thereof, which can overcome the technical problem in the related art that the air conditioner outdoor unit is easily blocked under the action of external wind in windy weather, causing the outdoor unit fan to fail to operate normally or even overheat and be damaged.

[0005] In order to solve the above problems, the present invention provides an air conditioner outdoor unit, including an outdoor unit shell, the outdoor unit shell including a chassis, a top cover and side panels connected between the chassis and the top cover, the chassis, top cover and side panels together surround an internal accommodating space of the outdoor unit shell, and with reference to the orientation of the air conditioner outdoor unit in a use state, the side panels include a front side panel, a rear side panel, a left side panel and a right side panel, wherein an air outlet is configured on the front side panel, a first air inlet is configured on the rear side panel, a second air inlet is configured on the left side panel, a plurality of first louver blades that can be controlled to open and close are arranged in the air outlet, a plurality of second louver blades that can be controlled to open and close are arranged in the first air inlet, and a plurality of third louver blades that can be controlled to open and close are arranged in the second air inlet.

[0006] In some embodiments, the air conditioner outdoor unit also includes a driving device, which is used to drive the switching of the opening and closing states of the first louver blades, the second louver blades, and the third louver blades. The top cover includes a lower cover plate and an upper cover plate, and the lower cover plate and the upper cover plate are buckled together to form a sealed space. The driving device is arranged in the sealed space.

[0007] In some embodiments, the air conditioner outdoor unit further includes a position locking device, and the position locking device is used to lock each of the first louver blades, the second louver blades, and the third louver blades at a corresponding rotation angle.

[0008] The present invention also provides a control method for the air conditioner outdoor unit as described above, comprising the following steps:

[0009] Obtaining the real-time wind speed of the external environment where the air conditioner outdoor unit is located;

[0010] When the real-time wind speed is not lower than a first preset wind speed, obtaining the real-time wind direction of the external environment;

[0011] The opening and closing and the rotation angle of each of the first louver blades, the second louver blades, and the third louver blades are controlled according to the real-time wind direction to adjust the opening and closing of the air outlet and the first air inlet and the second air inlet to correspond to the wind direction.

[0012] In some embodiments, controlling the opening and closing and the rotation angle of each of the first louver blade, the second louver blade, and the third louver blade according to the real-time wind direction to adjust the opening and closing of the air outlet and the first air inlet and the second air inlet to correspond to the wind direction specifically includes:

[0013] When the real-time wind direction is the first wind direction, each of the first louver blades is controlled to open a first preset angle so that each of the first louver blades is in a leeward state, each of the second louver blades is controlled to be in a closed state, and each of the third louver blades is controlled to be in a fully open state, so that each air outlet on the air conditioner outdoor unit is in a first state, and the first wind direction is the direction in which the external airflow blows from the right panel to the left panel; or,

[0014] When the real-time wind direction is the second wind direction, each of the first louver blades is controlled to open a second preset angle so that each of the first louver blades is in a leeward state, each of the second louver blades is controlled to open a third preset angle so that each of the second louver blades is in a windward state, and each of the third louver blades is controlled to be in a closed state so that each air outlet on the air conditioner outdoor unit is in a second state, and the second wind direction is the direction in which the external airflow blows from the left panel to the right panel; or

[0015] When the real-time wind direction is the third wind direction, each of the first louver blades is controlled to be in a fully open state, each of the second louver blades is controlled to be opened at a fourth preset angle, and each of the third louver blades is controlled to be opened at a fifth preset angle so that each of the third louver blades is in a leeward state, so that each air outlet on the air conditioner outdoor unit is in a third state, and the third wind direction is the direction in which the external airflow blows from the rear side panel to the front side panel; or

[0016] When the real-time wind direction is the fourth wind direction, each of the first louver blades is controlled to open to the sixth preset angle so that each of the first louver blades is in a leeward state, each of the second louver blades is controlled to be in a fully open state, and each of the third louver blades is controlled to open to the seventh preset angle so that each air outlet on the air conditioner outdoor unit is in the fourth state, and the fourth wind direction is the direction in which the external airflow blows from the front side panel to the rear side panel.

[0017] In some embodiments, when the real-time wind speed is not lower than the first preset wind speed and each air outlet on the air conditioner outdoor unit is in the first state, the second state, the third state and the fourth state:

[0018] When the real-time wind speed is higher than the first preset wind speed and lower than the second preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to increase; or,

[0019] When the real-time wind speed is not lower than the second preset wind speed and lower than the third preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to decrease; or,

[0020] When the real-time wind speed is not lower than the third preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to return to zero, and the external fan and compressor of the air conditioner outdoor unit are controlled to stop running.

[0021] In some embodiments, when the real-time wind speed is lower than the first preset wind speed and the air conditioner operates in cooling mode:

[0022] Obtain the real-time ambient temperature T of the external environment where the air conditioner outdoor unit is located 外 ;

[0023] When the real-time ambient temperature T 外 When the temperature is lower than a first preset temperature, the first louver blade, the second louver blade, and the third louver blade are controlled to open the initial deflection angle, and the pipe temperature Tg of the outdoor heat exchanger in the outdoor unit of the air conditioner is further obtained;

[0024] When Tg<T 外 -△Ts, controlling the first louver blade, the second louver blade, and the third louver blade to decrease based on the initial deflection angle, wherein △Ts is a preset temperature difference value; or,

[0025] When Tg ≥ T 外When -ΔTs, the first louver blade, the second louver blade, and the third louver blade are controlled to increase based on the initial deflection angle.

[0026] In some embodiments, when the real-time ambient temperature T 外 When the temperature is not lower than the first preset temperature:

[0027] Further obtain the real-time particle concentration N of the external environment where the air conditioner outdoor unit is located 外 ;

[0028] When the real-time particle concentration N 外 When the particle size is higher than a preset concentration value, the real-time wind direction of the external environment is obtained;

[0029] The opening and closing and the rotation angle of each of the first louver blades, the second louver blades, and the third louver blades are controlled according to the real-time wind direction to adjust the opening and closing of the air outlet and the first air inlet and the second air inlet to correspond to the wind direction.

[0030] In some embodiments, controlling the opening and closing and the rotation angle of each of the first louver blade, the second louver blade, and the third louver blade according to the real-time wind direction to adjust the opening and closing of the air outlet and the first air inlet and the second air inlet to correspond to the wind direction specifically includes:

[0031] When the real-time wind direction is the first wind direction, each of the first louver blades is controlled to open an eighth preset angle so that each of the first louver blades is in a leeward state, each of the second louver blades is controlled to be in a leeward state, and each of the third louver blades is controlled to be in a fully open state, so that each air outlet on the air conditioner outdoor unit is in a fifth state, and the first wind direction is the direction in which the external airflow blows from the right panel to the left panel; or

[0032] When the real-time wind direction is the second wind direction, each of the first louver blades is controlled to open at a ninth preset angle so that each of the first louver blades is in a leeward state, each of the second louver blades is controlled to open at a tenth preset angle so that each of the second louver blades is in a leeward state, and each of the third louver blades is controlled to be in a closed state so that each air outlet on the air conditioner outdoor unit is in a sixth state, and the second wind direction is the direction in which the external airflow blows from the left panel to the right panel; or

[0033] When the real-time wind direction is the third wind direction, each of the first louver blades is controlled to be in a fully open state, each of the second louver blades is controlled to be opened to an eleventh preset angle, and each of the third louver blades is controlled to be opened to a twelfth preset angle, so that each air outlet on the air conditioner outdoor unit is in the seventh state, and the third wind direction is the direction in which the external airflow blows from the rear side panel to the front side panel; or

[0034] When the real-time wind direction is the fourth wind direction, each of the first louver blades is controlled to open to the thirteenth preset angle, each of the second louver blades is controlled to be in a fully open state, and each of the third louver blades is controlled to open to a fourteenth preset angle, so that each air outlet on the air conditioner outdoor unit is in the eighth state, and the fourth wind direction is the direction in which the external airflow blows from the front side panel to the rear side panel.

[0035] In some embodiments, when the real-time particle concentration N is higher than the preset particle concentration value and each air outlet on the air conditioner outdoor unit is in the first state, the second state, the third state, and the fourth state:

[0036] Obtaining the heat exchange efficiency of the outdoor unit of the air conditioner;

[0037] When the heat exchange efficiency of the air conditioner outdoor unit is high, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to decrease; or,

[0038] When the heat exchange efficiency of the air conditioner outdoor unit is low, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to increase.

[0039] The present invention provides an air conditioner outdoor unit, an air conditioner and a control method thereof, which have the following beneficial effects:

[0040] By respectively arranging louver blades in the air outlet on the front side panel, in the first air inlet on the rear side panel, and in the second air inlet on the left side panel (that is, the aforementioned first louver blade, second louver blade, and third louver blade), the corresponding adjustment of the inlet and outlet air volume and the real-time wind direction of each air inlet and outlet can be achieved through the selective control of the opening and closing of each louver blade on each side panel and the rotation angle (position state), which can prevent excessive airflow with a high wind speed in the external environment from entering the internal accommodating space to increase the rotation resistance of the external fan, thereby preventing the motor from burning out due to stalling or the air conditioner from being damaged. The protective shutdown ensures the reliable operation of the air conditioner in strong wind weather conditions such as typhoon days, and improves the user experience; at the same time, it can be understood that the opening and closing of the aforementioned louver blades and the control of the rotation angle can also reduce the amount of external particles entering the internal accommodation space to a certain extent, delaying the occurrence of dirt and blockage of the external unit. In addition, when the air conditioner is cooling in a low temperature environment, by controlling the inlet and outlet air volume to match the heat exchange amount of the external unit, there is no need to adopt the prior art of frequently starting and closing the air conditioner piping system and frequently starting and stopping the external fan, thereby improving the reliability of the air conditioner and the service life of the external fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0042] Figure 1 is a schematic diagram of the structure decomposition of the outdoor unit of the air conditioner in the embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of the three-dimensional structure of an air conditioner outdoor unit according to an embodiment of the present invention;

[0044] Figure 3 yes Figure 2 A top view of the top cover of the outdoor unit of the air conditioner without the upper cover plate;

[0045] Figure 4 Schematic diagram of the internal structure of an embodiment of the present invention, in which the shutter blades of each air outlet are all in a closed state, and the air conditioner outdoor unit is in the ninth state ( Fig.12 Status 9);

[0046] Figure 5 Schematic diagram of the internal structure of an embodiment of the present invention, in which the shutter blades of each air outlet are in a fully open state, and the air conditioner outdoor unit is in the tenth state ( Fig.12 State 10 in );

[0047] Figure 6 Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the first state ( Fig.12 In state 1), the corresponding real-time wind direction is the first wind direction;

[0048] Figure 7 Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the second state ( Fig.12 In state 2), the corresponding real-time wind direction is the second wind direction;

[0049] Figure 8 Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the third / seventh state ( Fig.12 In the state 3 / 7), the corresponding real-time wind direction is the third wind direction;

[0050] Fig. 9 Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the fourth / eighth state ( Fig.12 In the state 4 / 8), the corresponding real-time wind direction is the fourth wind direction;

[0051] Fig.10Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the fifth state ( Fig.12 In state 5), the corresponding real-time wind direction is the first wind direction;

[0052] Fig.11 Schematic diagram of the internal structure of an embodiment of the present invention, the air conditioner outdoor unit is in the sixth state ( Fig.12 In state 6), the corresponding real-time wind direction is the second wind direction;

[0053] Fig.12 It is a control logic schematic diagram in a specific embodiment of the present invention.

[0054] The accompanying drawings are marked as follows:

[0055] 11. chassis; 12. top cover; 121. lower cover; 122. upper cover; 13. side panel; 131. front side panel; 1311. air outlet; 1312. first louver blade; 132. rear side panel; 1321. first air inlet; 1322. second louver blade; 133. left side panel; 1331. second air inlet; 1332. third louver blade; 134. right side panel; 201. outdoor heat exchanger; 202. outdoor fan; 2021. bracket; 203. compressor; 204. outdoor unit controller box; 2041. control board radiator; 205. environmental particle concentration sensor; 206. wind speed and direction sensor; 31. stepping motor; 32. motor control board; 33. position locking device. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] See also Figures 1 to 12As shown, according to an embodiment of the present invention, an air conditioner outdoor unit is provided, including an outdoor unit casing (not marked in the figure), the outdoor unit casing including a chassis 11, a top cover 12 and a side panel 13 connected between the chassis 11 and the top cover 12, the chassis 11, the top cover 12 and the side panel 13 together surround an internal accommodating space of the outdoor unit casing, an outdoor heat exchanger 201, an outdoor fan 202 (specifically, an axial fan) and a bracket 2021 for supporting the outdoor fan 202, a compressor 203 and an outdoor unit controller box 204 for controlling various related components in the outdoor unit are assembled in the internal accommodating space, the outdoor unit controller box 204 is also provided with a control panel radiator 2041, with reference to the orientation of the air conditioner outdoor unit in the use state, the side panel 13 includes a front side panel 131, a rear side panel 132, a left side panel 133 and a right side panel 134, wherein the front side panel 131 is ... An air outlet 1311 is constructed on the side panel 131, a first air inlet 1321 is constructed on the rear side panel 132, a second air inlet 1331 is constructed on the left side panel 133, a plurality of first louver blades 1312 that can be controlled to open and close are arranged in the air outlet 1311, a plurality of second louver blades 1322 that can be controlled to open and close are arranged in the first air inlet 1321, a plurality of third louver blades 1332 that can be controlled to open and close are arranged in the second air inlet 1331, the aforementioned compressor 203, the outdoor unit controller box 204 and the control board radiator 2041 are arranged between the outdoor fan 202 and the right side panel 134, the outdoor heat exchanger 201 is projected into a roughly U-shape when viewed from a top view, and the first air inlet 1321 and the second air inlet 1331 are arranged corresponding to the middle part and a side part of the outdoor heat exchanger 201, respectively.

[0061] In this technical solution, by respectively arranging louver blades (that is, the aforementioned first louver blade 1312, the second louver blade 1322 and the third louver blade 1332) in the air outlet 1311 on the front side panel 131, in the first air inlet 1321 on the rear side panel 132 and in the second air inlet 1331 on the left side panel 133, the corresponding adjustment of the inlet and outlet air volume and the real-time wind direction of each air inlet and outlet can be achieved by selectively controlling the opening and closing of each louver blade on each side panel and the rotation angle (position state), which can prevent excessive airflow with a higher wind speed in the external environment from entering the internal accommodating space to increase the rotation resistance of the external fan 202 force, thereby preventing the motor from burning out due to stalling or the air conditioner from shutting down for protection, ensuring the reliable operation of the air conditioner in windy weather conditions such as typhoons, and improving the user experience; at the same time, it can be understood that the opening and closing of the aforementioned louver blades and the control of the rotation angle can also be used to reduce the amount of external particles entering the internal accommodation space to a certain extent, delaying the occurrence of dirt and blockage in the external unit. In addition, when the air conditioner is cooling in a low-temperature environment, by controlling the inlet and outlet air volumes to match the heat exchange amount of the external unit, there is no need to frequently start and close the air conditioner piping system and frequently start and stop the external fan in the prior art, thereby improving the reliability of the air conditioner and the service life of the external fan.

[0062] In some embodiments, the air conditioner outdoor unit also includes a driving device (not labeled in the figure), which is used to drive the switching of the opening and closing states of the first louver blades 1312, the second louver blades 1322, and the third louver blades 1332. The top cover 12 includes a lower cover plate 121 and an upper cover plate 122, and the lower cover plate 121 and the upper cover plate 122 are buckled together to form a sealed space (not labeled in the figure), and the driving device is arranged in the sealed space.

[0063] In this technical solution, the drive device is arranged in a sealed space, which is beneficial to improving the protection level of the drive device such as dust and water resistance. It is worth mentioning that since the present invention is respectively constructed with corresponding air vents on the front side plate 131, the rear side plate 132 and the left side plate 133, the connection area between the internal accommodation space of the external housing and the external environment is larger, which increases the protection requirements for the drive device, resulting in difficulties in selection and increases in design and production costs. In the present invention, the drive device is arranged in the aforementioned sealed cavity composed of the lower cover plate 121 and the upper cover plate 122, so there is no need to worry about the protection selection of the drive device, that is, the corresponding drive device does not need to consider the protection level too much. For details, see Figure 3As shown, the aforementioned driving device can be a stepper motor 31 directly connected to one end of each louver blade, and each stepper motor 31 independently controls the deflection and opening and closing of each corresponding louver blade, and a motor control board 32 for each stepper motor 31 is also provided in the aforementioned sealed cavity. In other feasible embodiments, each of the louver blades is connected to a stepper motor 31 through a connecting rod structure. For example, a connecting rod and a stepper motor 31 are provided for each first louver blade 1312. Similarly, a connecting rod and a stepper motor 31 are provided for each second louver blade 1322 and the third louver blade 1332. In this way, the number of stepper motors 31 configured can be greatly reduced, the structural design can be simplified, and the design and production costs can be reduced.

[0064] In some embodiments, the air conditioner outdoor unit further includes a position locking device 33, which is used to lock each of the first louver blades 1312, the second louver blades 1322, and the third louver blades 1332 at corresponding rotation angles, so as to effectively prevent each louver blade from being stably at a corresponding rotation angle when the external wind force is large. The aforementioned position locking device 33 can be, for example, a rack, in which case a corresponding gear ring is provided at the corresponding position of the rotating shaft of each corresponding louver blade, and the rack can be controlled to move closer to or away from each louver blade, thereby achieving meshing or disengagement between the rack and the teeth on the gear ring, and when meshing, the rack locks each louver blade, and when disengaged, each louver blade can be driven to rotate by a driving device. At this time, it can be understood that each stepping motor 31 does not need to select a motor with a brake, further reducing the design cost.

[0065] In some embodiments, a wind speed sensor, a wind direction sensor and an environmental particle concentration sensor 205 are provided on the air conditioner outdoor unit, wherein the wind speed sensor is used to detect the real-time wind speed (i.e., wind force) of the external environment, and the wind direction sensor is used to detect the real-time wind direction of the external environment. Both can use integrated sensors. For example, in a specific embodiment, a wind speed and direction sensor 206 is used, which is arranged on the outside of the top cover 12 and is on the top surface; the aforementioned environmental particle concentration sensor 205 is used to detect the real-time particle concentration (i.e., dust, sand) of the external environment, which can be arranged in the outer unit casing, but should be close to the inner side of the air inlet (e.g., the first air inlet 1321).

[0066] According to an embodiment of the present invention, there is also provided a control method for an outdoor unit of an air conditioner as described above, comprising the following steps:

[0067] Acquire the real-time wind speed of the external environment (i.e., the outdoor environment) where the air conditioner outdoor unit is located, specifically acquired by the aforementioned wind speed and direction sensor 206;

[0068] When the real-time wind speed is not lower than a first preset wind speed (the specific selection is based on the theoretical load value of the external fan 202. When the external fan 202 is fully exposed to the environment of the first preset wind speed, the external fan 202 will be damaged), the real-time wind direction of the external environment is obtained, which can also be obtained by the aforementioned wind speed and direction sensor 206;

[0069] The opening and closing (open or closed) and rotation angle of the first louver blade 1312, the second louver blade 1322, and the third louver blade 1332 are controlled according to the real-time wind direction to adjust the opening and closing of the air outlet 1311 and the first air inlet 1321, and the second air inlet 1331 to correspond to the wind direction.

[0070] In this technical solution, the corresponding adjustment of the inlet and outlet air volume and the real-time wind direction of each air inlet and outlet is achieved by selectively controlling the opening and closing of each louver blade on each side panel and the rotation angle (position state), which can prevent excessive airflow with a high wind speed in the external environment from entering the internal accommodating space and increasing the rotation resistance of the external fan 202, thereby preventing the motor from burning out due to stalling or the air conditioner from shutting down for protection, ensuring the reliable operation of the air conditioner in strong wind weather conditions such as typhoons, and improving the user experience.

[0071] Specifically, according to the real-time wind direction, the first louver blade 1312, the second louver blade 1322, and the third louver blade 1332 are controlled to open and close and rotate at an angle to adjust the opening and closing of the air outlet 1311 and the first air inlet 1321 and the second air inlet 1331 in correspondence with the wind direction, specifically including:

[0072] When the real-time wind direction is the first wind direction, each of the first louver blades 1312 is controlled to open a first preset angle so that each of the first louver blades 1312 is in a leeward state (in this state, when the airflow blows to the corresponding louver blade, such as the first louver blade 1312 at this time, this part of the airflow will be reflected toward the external space of the external unit casing, thereby reducing the amount of airflow entering the internal accommodation space of the external unit casing), each of the second louver blades 1322 is controlled to be in a closed state (the deflection angle of the corresponding louver blade in this state is 0°), and each of the third louver blades 1332 is controlled to be in a fully open state (the deflection angle of the corresponding louver blade in this state is 90°), so that each air outlet on the air conditioner outdoor unit (that is, the aforementioned air outlet 1311, the first air inlet 1321 and the second air inlet 1331, the same below) is in a first state (such as Figure 6 As shown), the first wind direction is the direction in which the external airflow blows from the right side plate 134 to the left side plate 133, see Figure 6As shown, the wind blows from the right end to the left end of the illustrated orientation. At this time, due to the wind force (high wind speed), in order to prevent the airflow with a high wind speed from forming a suction effect at the first air inlet 1321, causing the airflow in the external unit to flow out from the first air inlet 1321 in large quantities, thereby hindering the normal operation of the external fan, at this time, all the second louver blades 1322 are controlled to be closed. At this time, the air intake is completely realized by the second air inlet 1331, and at the same time, each first louver blade 1312 in the air outlet 1311 is controlled to be in a leeward state, which can prevent excessive airflow from entering the external unit casing through the air outlet 1311, thereby ensuring the normal operation of the external unit under strong wind conditions; or,

[0073] When the real-time wind direction is the second wind direction, each of the first louver blades 1312 is controlled to open at a second preset angle so that each of the first louver blades 1312 is in a leeward state, and each of the second louver blades 1322 is controlled to open at a third preset angle so that each of the second louver blades 1322 is in a windward state (in this state, when the airflow blows to the corresponding louver blade, such as the first louver blade 1312 at this time, this part of the airflow will be reflected toward the internal accommodation space of the external unit casing, and then part of the airflow will be introduced into the interior of the external unit casing to a certain extent), and each of the third louver blades 1332 is controlled to be in a closed state, so that each air outlet on the air conditioner outdoor unit is in the second state (such as Figure 7 The second wind direction is the direction in which the external airflow blows from the left side plate 133 to the right side plate 134. Figure 7 As shown, the wind blows from the left end to the right end of the illustrated orientation. At this time, due to the wind force (high wind speed), the second air inlet 1331 is controlled to be completely closed, and each second louver blade 1322 in the first air inlet 1321 is controlled to be in a windward state, which can introduce a part of the external airflow into the interior of the outdoor unit, thereby ensuring the normal heat exchange of the outdoor heat exchanger. Each first louver blade 1312 is controlled to be in a leeward state, which can prevent the external airflow from flowing back into the interior of the outdoor unit without affecting the air outlet; or,

[0074] When the real-time wind direction is the third wind direction, each of the first louver blades 1312 is controlled to be in a fully open state, each of the second louver blades 1322 is controlled to be opened at a fourth preset angle, and each of the third louver blades 1332 is controlled to be opened at a fifth preset angle so that each of the third louver blades 1332 is in a leeward state, so that each air outlet on the air conditioner outdoor unit is in the third state (such as Figure 8 The third wind direction is the direction in which the external airflow blows from the rear side plate 132 to the front side plate 131. Fig. 9 As shown, the wind blows from the upper end to the lower end of the illustrated orientation, and at this time, the second louver blade 1322 is controlled to be in a leeward state to reduce the amount of airflow entering the external unit through the first air inlet 1321 to prevent damage to the external fan; or,

[0075] When the real-time wind direction is the fourth wind direction, each of the first louver blades 1312 is controlled to open the sixth preset angle so that each of the first louver blades 1312 is in the leeward state, each of the second louver blades 1322 is controlled to be in the fully opened state, and each of the third louver blades 1332 is controlled to open the seventh preset angle so that each air outlet on the air conditioner outdoor unit is in the fourth state (such as Fig. 9 The fourth wind direction is the direction in which the external airflow blows from the front side plate 131 to the rear side plate 132. Fig. 9 As shown, the wind blows from the lower end of the illustrated direction to the upper end. At this time, each first louver blade 1312 is controlled to be in a leeward state to reduce the amount of air entering the interior of the external unit.

[0076] The specific values ​​of the first to seventh preset angles can be determined by experiments.

[0077] The first wind direction, the second wind direction, the third wind direction and the fourth wind direction can be clearly distinguished by dividing the regional angles on the horizontal plane, such as Figure 5 As shown in the figure, the horizontal plane is divided into four right-angle areas with the wind speed and direction sensor 206 as the center, and the wind direction is determined by the correspondence between the wind direction angle detected by the wind speed and direction sensor 206 and each wind direction range. The boundary angle of any two adjacent wind direction ranges can be specifically divided into any wind direction of the two adjacent wind direction ranges, which can be flexibly set.

[0078] In some embodiments, when the real-time wind speed is not lower than the first preset wind speed and the air outlets on the outdoor unit of the air conditioner are in the first state, the second state, the third state and the fourth state: when the real-time wind speed is higher than the first preset wind speed and lower than the second preset wind speed, the corresponding first preset angle, the second preset angle, the third preset angle, the fourth preset angle, the fifth preset angle, the sixth preset angle and the seventh preset angle are controlled to increase, so as to improve the airflow entering the outdoor unit to a certain extent and improve the heat exchange performance; or, when the real-time wind speed is not lower than the second preset wind speed and lower than the third preset wind speed, the corresponding first preset angle is controlled to increase. The first preset angle, the second preset angle, the third preset angle, the fourth preset angle, the fifth preset angle, the sixth preset angle and the seventh preset angle are reduced to reduce the airflow entering the outdoor unit to a certain extent to prevent the operation of the fan from being hindered or even damaged; or, when the real-time wind speed is not lower than the third preset wind speed, the corresponding first preset angle, the second preset angle, the third preset angle, the fourth preset angle, the fifth preset angle, the sixth preset angle and the seventh preset angle are controlled to return to zero, that is, all air outlets are closed, and the outdoor fan 202 and the compressor 203 of the air conditioner outdoor unit are controlled to stop running, that is, the air conditioner outdoor unit enters shutdown protection. In this technical solution, the third preset wind speed corresponds to the air inlet area of ​​each air inlet, which is already at the minimum value under the premise of ensuring that the outdoor heat exchanger can exchange heat normally, but the external wind force entering still causes the wind speed corresponding to the stall damage of the outdoor fan, and the second preset wind speed is between the first preset wind speed and the third preset wind speed, and the specific value can be reasonably determined by experiment.

[0079] In some embodiments, when the real-time wind speed is lower than the first preset wind speed and the air conditioner operates in a cooling mode, the cooling mode may be selected by the user, or the system may automatically detect and control the selected operation:

[0080] Obtain the real-time ambient temperature T of the external environment where the air conditioner outdoor unit is located 外 (16°C in a specific embodiment);

[0081] When the real-time ambient temperature T 外 When the temperature is lower than the first preset temperature, the first louver blade 1312, the second louver blade 1322, and the third louver blade 1332 are controlled to open the initial deflection angle (in a specific embodiment, it can be 45°), and the pipe temperature Tg of the outdoor heat exchanger 201 in the outdoor unit of the air conditioner is further obtained (detected by a corresponding temperature sensing package);

[0082] When Tg<T 外-△Ts, the first louver blade 1312, the second louver blade 1322, and the third louver blade 1332 are controlled to decrease based on the initial deflection angle, wherein △Ts is a preset temperature difference value (in a specific embodiment, for example, 6°C); or, when Tg≥T 外 -△Ts, the first louver blade 1312, the second louver blade 1322, and the third louver blade 1332 are controlled to increase based on the initial deflection angle, so that the air intake volume can be accurately controlled, thereby optimizing the heat exchange efficiency of the outdoor unit, ensuring that the equipment can still operate efficiently in a low temperature environment, and significantly improving the reliability and stability of the entire machine.

[0083] In some embodiments, when the real-time ambient temperature T 外 When the temperature is not lower than the first preset temperature: further obtaining the real-time particle concentration N of the external environment where the air conditioner outdoor unit is located 外 ; When the real-time particle concentration N 外 When the particle size is higher than a preset concentration value, the real-time wind direction of the external environment is obtained;

[0084] The first louver blades 1312, the second louver blades 1322, and the third louver blades 1332 are controlled to open and close and rotate at an angle according to the real-time wind direction, so as to adjust the opening and closing of the air outlet 1311 and the first air inlet 1321 and the second air inlet 1331 to correspond to the wind direction. Specifically:

[0085] When the real-time wind direction is the first wind direction, each of the first louver blades 1312 is controlled to open the eighth preset angle so that each of the first louver blades 1312 is in the leeward state, each of the second louver blades 1322 is controlled to be in the leeward state, and each of the third louver blades 1332 is controlled to be in the fully opened state, so that each air outlet on the air conditioner outdoor unit is in the fifth state (such as Fig.10 As shown), the first wind direction is the direction in which the external airflow blows from the right side plate 134 to the left side plate 133. At this time, since the first louver blade 1312 and the second louver blade 1322 are both in the leeward state, the amount of particles in the external airflow that are entrained into the external unit can be reduced to a certain extent, thereby delaying the occurrence of dirty blockage of the external unit. The third louver blade 1332 is in a fully open state to ensure the air intake of the external unit; or

[0086] When the real-time wind direction is the second wind direction, each of the first louver blades 1312 is controlled to open at a ninth preset angle so that each of the first louver blades 1312 is in a leeward state, each of the second louver blades 1322 is controlled to open at a tenth preset angle so that each of the second louver blades 1322 is in a leeward state, and each of the third louver blades 1332 is controlled to be in a closed state so that each of the air outlets on the air conditioner outdoor unit is in a sixth state (such as Fig.11 As shown), the second wind direction is the direction in which the external airflow blows from the left plate 133 to the right plate 134. At this time, since the first louver blade 1312 and the second louver blade 1322 are both in the leeward state, the amount of particles in the external airflow that are carried into the external unit can be reduced to a certain extent, thereby delaying the occurrence of the dirty blockage of the external unit. The third louver blade 1332 is in a closed state to prevent a large amount of external particles from entering. At this time, the opening angle of the second louver blade 1322 can be appropriately larger to ensure the air intake; or,

[0087] When the real-time wind direction is the third wind direction, each of the first louver blades 1312 is controlled to be in a fully open state, each of the second louver blades 1322 is controlled to be opened to an eleventh preset angle, and each of the third louver blades 1332 is controlled to be opened to a twelfth preset angle, so that each air outlet on the air conditioner outdoor unit is in the seventh state (such as Figure 8 ), the third wind direction is the direction in which the external airflow blows from the rear side panel 132 to the front side panel 131; or, when the real-time wind direction is the fourth wind direction, each of the first louver blades 1312 is controlled to open a thirteenth preset angle, each of the second louver blades 1322 is controlled to be in a fully opened state, and each of the third louver blades 1332 is controlled to open a fourteenth preset angle, so that each air outlet on the air conditioner outdoor unit is in the eighth state (as shown in FIG. Fig. 9 As shown), the fourth wind direction is the direction in which the external airflow blows from the front side panel 131 to the rear side panel 132.

[0088] The specific values ​​of the eighth to fourteenth preset angles may be determined by experiments.

[0089] In the prior art, for example, in China Mobile base stations (the corresponding air conditioner in this case is a base station air conditioner), due to the continuous operation of electronic components, even if the outside temperature is low, the inside of the base station still needs to be cooled to maintain a suitable working environment. However, when the outside temperature is low, the traditional refrigeration system, due to the excessive heat exchange effect of the outdoor unit, in order to prevent frost on the indoor unit, usually reduces the heat exchange by reducing the compressor frequency and slowing down the speed of the outdoor axial flow fan (that is, the aforementioned outdoor fan). However, this method has limitations. When the speed of the axial flow fan drops below 300 rpm, the system will automatically shut down and start again when the temperature rises, thereby forming a repeated start-stop cycle. This frequent start-stop not only causes an impact on the system pipelines and the axial flow motor, but also greatly shortens the service life of the equipment. Based on the aforementioned deficiencies, in some embodiments, when the real-time particle concentration N is higher than the preset particle size concentration value and each air outlet on the outdoor unit of the air conditioner When in the first state, the second state, the third state and the fourth state: the heat exchange efficiency of the outdoor unit of the air conditioner is obtained (for example, the determination is made based on the height of the outdoor unit pipe temperature in the prior art); when the heat exchange efficiency of the outdoor unit of the air conditioner is high, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to be reduced, the inlet and outlet air volume is reduced, the heat exchange performance of the outdoor heat exchanger is reduced, the frequent opening and closing of the air-conditioning pipeline and the frequent starting and stopping of the outdoor fan are prevented, and the reliability of the air conditioner and the service life of the outdoor fan are improved; or, when the heat exchange efficiency of the outdoor unit of the air conditioner is low, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to be increased, the inlet and outlet air volume is increased, and the heat exchange performance of the outdoor heat exchanger is improved.

[0090] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An air conditioner outdoor unit, comprising an outdoor unit housing, the outdoor unit housing comprising a chassis (11), a top cover (12) and a side panel (13) connected between the chassis (11) and the top cover (12), the chassis (11), the top cover (12) and the side panel (13) together enclosing an internal accommodation space of the outdoor unit housing, characterized in that, with reference to the orientation of the air conditioner outdoor unit in use, the side panel (13) comprises a front side panel (131), a rear side panel (132), a left side panel (133) and a right side panel (134), wherein: The front side panel (131) is provided with an air outlet (1311), the rear side panel (132) is provided with a first air inlet (1321), the left side panel (133) is provided with a second air inlet (1331), the air outlet (1311) is provided with a plurality of first louver blades (1312) that can be controlled to open and close, the first air inlet (1321) is provided with a plurality of second louver blades (1322) that can be controlled to open and close, and the second air inlet (1331) is provided with a plurality of third louver blades (1332) that can be controlled to open and close.

2. The air conditioner outdoor unit according to claim 1, characterized in that: It also includes a driving device, which is used to drive the switching of the opening and closing states of the first louver blades (1312), the second louver blades (1322), and the third louver blades (1332). The top cover (12) includes a lower cover plate (121) and an upper cover plate (122). The lower cover plate (121) and the upper cover plate (122) are buckled together to form a sealed space, and the driving device is arranged in the sealed space.

3. The air conditioner outdoor unit according to claim 2, characterized in that: It also includes a position locking device (33), and the position locking device (33) is used to lock each of the first louver blades (1312), the second louver blades (1322), and the third louver blades (1332) at a corresponding rotation angle.

4. A method for controlling an outdoor unit of an air conditioner according to any one of claims 1 to 3, characterized in that: The steps include: Obtaining the real-time wind speed of the external environment where the air conditioner outdoor unit is located; When the real-time wind speed is not lower than a first preset wind speed, obtaining the real-time wind direction of the external environment; The opening and closing and the rotation angle of the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) are controlled according to the real-time wind direction to adjust the opening and closing of the air outlet (1311) and the first air inlet (1321), and the second air inlet (1331) to correspond to the wind direction.

5. The control method according to claim 1, characterized in that: Controlling the opening and closing and the rotation angle of each of the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) according to the real-time wind direction to adjust the opening and closing of the air outlet (1311) and the first air inlet (1321), and the second air inlet (1331) in correspondence with the wind direction specifically includes: When the real-time wind direction is the first wind direction, each of the first louver blades (1312) is controlled to open a first preset angle so that each of the first louver blades (1312) is in a leeward state, each of the second louver blades (1322) is controlled to be in a closed state, and each of the third louver blades (1332) is controlled to be in a fully open state so that each air outlet on the air conditioner outdoor unit is in a first state, the first wind direction being the direction in which the external airflow blows from the right side panel (134) to the left side panel (133); or, When the real-time wind direction is the second wind direction, each of the first louver blades (1312) is controlled to open at a second preset angle so that each of the first louver blades (1312) is in a leeward state, each of the second louver blades (1322) is controlled to open at a third preset angle so that each of the second louver blades (1322) is in a windward state, and each of the third louver blades (1332) is controlled to be in a closed state so that each of the air outlets on the air conditioner outdoor unit is in a second state, the second wind direction being the direction in which the external airflow blows from the left panel (133) to the right panel (134); or, When the real-time wind direction is the third wind direction, each of the first louver blades (1312) is controlled to be in a fully open state, each of the second louver blades (1322) is controlled to be opened to a fourth preset angle, and each of the third louver blades (1332) is controlled to be opened to a fifth preset angle so that each of the third louver blades (1332) is in a leeward state, so that each of the air outlets on the air conditioner outdoor unit is in a third state, and the third wind direction is the direction in which the external airflow blows from the rear side panel (132) to the front side panel (131); or, When the real-time wind direction is the fourth wind direction, each of the first louver blades (1312) is controlled to open to a sixth preset angle so that each of the first louver blades (1312) is in a leeward state, each of the second louver blades (1322) is controlled to be in a fully open state, and each of the third louver blades (1332) is controlled to open to a seventh preset angle so that each air outlet on the air conditioner outdoor unit is in a fourth state, and the fourth wind direction is the direction in which the external airflow blows from the front side panel (131) to the rear side panel (132).

6. The control method according to claim 5, characterized in that: When the real-time wind speed is not lower than the first preset wind speed and the air outlets on the air conditioner outdoor unit are in the first state, the second state, the third state and the fourth state: When the real-time wind speed is higher than the first preset wind speed and lower than the second preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to increase; or, When the real-time wind speed is not lower than the second preset wind speed and lower than the third preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to decrease; or, When the real-time wind speed is not lower than the third preset wind speed, the corresponding first preset angle, second preset angle, third preset angle, fourth preset angle, fifth preset angle, sixth preset angle and seventh preset angle are controlled to return to zero, and the external fan (202) and compressor (203) of the air conditioner outdoor unit are controlled to stop running.

7. The control method according to claim 4, characterized in that: When the real-time wind speed is lower than the first preset wind speed and the air conditioner operates in cooling mode: Obtain the real-time ambient temperature T of the external environment where the air conditioner outdoor unit is located 外 ; When the real-time ambient temperature T 外 When the temperature is lower than a first preset temperature, the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) are controlled to open to an initial deflection angle, and the pipe temperature Tg of the outdoor heat exchanger (201) in the outdoor unit of the air conditioner is further obtained; When Tg<T 外 -△Ts, controlling the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) to decrease based on the initial deflection angle, wherein △Ts is a preset temperature difference value; or, When Tg ≥ T 外 When -ΔTs, the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) are controlled to increase based on the initial deflection angle.

8. The control method according to claim 7, characterized in that: When the real-time ambient temperature T 外 When the temperature is not lower than the first preset temperature: Further obtain the real-time particle concentration N of the external environment where the air conditioner outdoor unit is located 外 ; When the real-time particle concentration N 外 When the particle size is higher than a preset concentration value, the real-time wind direction of the external environment is obtained; The opening and closing and the rotation angle of the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) are controlled according to the real-time wind direction to adjust the opening and closing of the air outlet (1311) and the first air inlet (1321), and the second air inlet (1331) to correspond to the wind direction.

9. The control method according to claim 8, characterized in that: Controlling the opening and closing and the rotation angle of each of the first louver blade (1312), the second louver blade (1322), and the third louver blade (1332) according to the real-time wind direction to adjust the opening and closing of the air outlet (1311) and the first air inlet (1321), and the second air inlet (1331) in correspondence with the wind direction specifically includes: When the real-time wind direction is the first wind direction, each of the first louver blades (1312) is controlled to open to an eighth preset angle so that each of the first louver blades (1312) is in a leeward state, each of the second louver blades (1322) is controlled to be in a leeward state, and each of the third louver blades (1332) is controlled to be in a fully open state so that each air outlet on the air conditioner outdoor unit is in a fifth state, the first wind direction being the direction in which the external airflow blows from the right side panel (134) to the left side panel (133); or, When the real-time wind direction is the second wind direction, each of the first louver blades (1312) is controlled to open to a ninth preset angle so that each of the first louver blades (1312) is in a leeward state, each of the second louver blades (1322) is controlled to open to a tenth preset angle so that each of the second louver blades (1322) is in a leeward state, and each of the third louver blades (1332) is controlled to be in a closed state so that each of the air outlets on the air conditioner outdoor unit is in a sixth state, the second wind direction being the direction in which the external airflow blows from the left side panel (133) to the right side panel (134); or, When the real-time wind direction is the third wind direction, each of the first louver blades (1312) is controlled to be in a fully open state, each of the second louver blades (1322) is controlled to be opened to an eleventh preset angle, and each of the third louver blades (1332) is controlled to be opened to a twelfth preset angle, so that each air outlet on the air conditioner outdoor unit is in a seventh state, and the third wind direction is the direction in which the external airflow blows from the rear side panel (132) to the front side panel (131); or, When the real-time wind direction is the fourth wind direction, each of the first louver blades (1312) is controlled to open to a thirteenth preset angle, each of the second louver blades (1322) is controlled to be in a fully open state, and each of the third louver blades (1332) is controlled to open to a fourteenth preset angle, so that each air outlet on the air conditioner outdoor unit is in an eighth state, and the fourth wind direction is the direction in which the external airflow blows from the front side panel (131) to the rear side panel (132).

10. The control method according to claim 9, characterized in that: When the real-time particle concentration N is higher than the preset particle concentration value and each air outlet on the air conditioner outdoor unit is in the first state, the second state, the third state and the fourth state: Obtaining the heat exchange efficiency of the outdoor unit of the air conditioner; When the heat exchange efficiency of the air conditioner outdoor unit is high, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to decrease; or, When the heat exchange efficiency of the air conditioner outdoor unit is low, the corresponding eighth preset angle, ninth preset angle, tenth preset angle, eleventh preset angle, twelfth preset angle, thirteenth preset angle and fourteenth preset angle are controlled to increase.

Images