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

Abstract

The application provides an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner. The air conditioner outdoor unit comprises a casing, an outdoor heat exchanger, an outdoor fan, a louver assembly and a driving member. The outdoor heat exchanger and the outdoor fan are arranged in the casing. The outdoor heat exchanger is located at the air outlet side of the outdoor fan. The casing is provided with an outdoor air inlet and an outdoor air outlet. The louver assembly is arranged at the outdoor air outlet. The louver assembly comprises a connecting rod and a plurality of blades. One end of the blade is rotatably connected with the connecting rod, and the other end of the blade is rotatably connected with the casing. The driving member can drive the connecting rod to reciprocate along a first direction, so that the plurality of blades rotate relative to the casing to adjust the air outlet direction of the outdoor air outlet. By rotatably connecting the two ends of the blade with the casing and the connecting rod respectively, and driving the connecting rod to reciprocate along the first direction by the driving member, the plurality of blades rotate relative to the casing to adjust the air outlet direction of the outdoor air outlet, so that the heat exchange efficiency is ensured when the air conditioner operates in the cooling mode, and the cooling capacity of the air conditioner is avoided to be insufficient.

Description

Technical Field

[0001] This application belongs to the field of air conditioning technology, and in particular relates to an outdoor unit of an air conditioner, an air conditioner, and a method for controlling the air conditioner. Background Technology

[0002] The outdoor unit of an air conditioner has an air outlet and an air inlet. Because the air outlet has a fixed air outlet angle, hot air blown out of the condenser in cooling mode will be drawn in through the air inlet. This prevents the air conditioner from dissipating heat from the condenser by drawing in cold air, resulting in a decrease in the overall cooling capacity of the air conditioner and insufficient cooling capacity. Summary of the Invention

[0003] This application provides an outdoor unit for an air conditioner, an air conditioner, and a control method for the air conditioner to solve the problem of insufficient cooling capacity in existing outdoor units for air conditioners.

[0004] In a first aspect, embodiments of this application provide an outdoor unit for an air conditioner. The outdoor unit includes a casing, an outdoor heat exchanger, an outdoor fan, a louver assembly, and a drive component. The outdoor heat exchanger and the outdoor fan are both disposed within the casing. The outdoor heat exchanger is located on the air outlet side of the outdoor fan. The casing has an outdoor air inlet and an outdoor air outlet. The louver assembly is disposed at the outdoor air outlet. The louver assembly includes a connecting rod and multiple blades. One end of each blade is rotatably connected to the connecting rod, and the other end of each blade is rotatably connected to the casing. The drive component can drive the connecting rod to reciprocate along a first direction, so that the multiple blades rotate relative to the casing to adjust the air outlet direction of the outdoor air outlet.

[0005] Optionally, the edge of the outdoor air outlet is provided with a first shaft hole, the connecting rod is provided with a second shaft hole, and the two ends of the blade are respectively provided with a first rotating shaft and a second rotating shaft. The first rotating shaft is rotatably inserted into the corresponding first shaft hole, and the second rotating shaft is rotatably inserted into the corresponding second shaft hole.

[0006] Optionally, the driving component is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod, and the connecting rod is connected to the telescopic rod of the hydraulic cylinder, the telescopic rod of the pneumatic cylinder, or the push rod of the electric push rod.

[0007] Optionally, when the driving component is a hydraulic cylinder, the end of the telescopic rod of the hydraulic cylinder is provided with a connecting notch, and one end of the connecting rod is provided with a connecting protrusion corresponding to the connecting notch. The connecting protrusion is inserted into the connecting notch and connected to the telescopic rod by a fastener.

[0008] Optionally, when the driving component is a cylinder, the end of the cylinder's telescopic rod is provided with a connecting notch, and one end of the connecting rod is provided with a connecting protrusion corresponding to the connecting notch. The connecting protrusion is inserted into the connecting notch and connected to the telescopic rod by a fastener.

[0009] Optionally, when the driving component is an electric push rod, the push rod end of the electric push rod is provided with a connection notch, and one end of the connecting rod is provided with a connection protrusion corresponding to the connection notch. The connection protrusion is inserted into the connection notch and connected to the push rod by a fastener.

[0010] Optionally, a first connecting hole is provided on each of the two opposite sidewalls of the connecting notch, and a second connecting hole is provided on the connecting protrusion. The second connecting hole and the two first connecting holes are connected by fasteners.

[0011] Optionally, the driving component is a motor, which is connected to the connecting rod via a transmission assembly to drive the connecting rod to reciprocate along the first direction.

[0012] Optionally, the transmission assembly includes a gear and a rack, the rack being disposed on the connecting rod and extending along the first direction, the gear being connected to the output shaft of the motor, and the gear meshing with the rack.

[0013] Optionally, the outdoor heat exchanger is U-shaped, and the U-shaped outdoor heat exchanger includes a main body and bent portions formed by bending at both ends of the main body.

[0014] Optionally, a first temperature sensor for detecting the outdoor air temperature is provided at the outdoor air outlet, and a third temperature sensor for detecting the outdoor air temperature is provided at the outdoor air inlet.

[0015] Secondly, embodiments of this application also provide an air conditioner, the air conditioner including an outdoor unit as described in any of the above claims.

[0016] Thirdly, embodiments of this application also provide a method for controlling an air conditioner, which is applied to the air conditioner described above.

[0017] Optionally, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet of the outdoor unit and a second temperature sensor installed at the indoor air outlet of the indoor unit; the method includes the following steps:

[0018] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly blades is a first preset angle β1, 0°<β1≤45°;

[0019] The first real-time temperature is continuously acquired through the first temperature sensor, and the second real-time temperature is continuously acquired through the second temperature sensor.

[0020] If the difference between the first real-time temperature and the second real-time temperature is not less than T1, then the opening angle α of the louver assembly is the second preset angle β2, where 90°≤β2≤145°, and 20℃<T1<25℃.

[0021] Optionally, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet of the outdoor unit and a third temperature sensor installed at the outdoor air inlet of the outdoor unit; the method includes the following steps:

[0022] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly blades is a first preset angle β1, 0°<β1≤45°;

[0023] The first real-time temperature is continuously acquired through the first temperature sensor, and the third real-time temperature is continuously acquired through the third temperature sensor.

[0024] If the difference between the first real-time temperature and the third real-time temperature is not less than T2, then the opening angle α of the louver assembly is the second preset angle β2, where 90°≤β2≤145° and 10℃<T2<15℃.

[0025] Optionally, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet of the outdoor unit, a second temperature sensor installed at the indoor air outlet of the indoor unit, and a third temperature sensor installed at the outdoor air inlet of the outdoor unit; the method includes the following steps:

[0026] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly blades is a first preset angle β1, 0°<β1≤45°;

[0027] The first real-time temperature is continuously acquired through the first temperature sensor, the second real-time temperature is continuously acquired through the second temperature sensor, and the third real-time temperature is continuously acquired through the third temperature sensor.

[0028] If the difference between the first real-time temperature and the second real-time temperature is not less than T1, and / or the difference between the first real-time temperature and the third real-time temperature is not less than T2, or the difference between the first real-time temperature and the second real-time temperature is less than T1 and the difference between the first real-time temperature and the third real-time temperature is less than T2 and the difference is less than a preset difference, then the opening angle α of the louver assembly is a second preset angle β2, where 90°≤β2≤145°, 20℃<T1<25℃, and 10℃<T2<15℃.

[0029] The air conditioner outdoor unit, air conditioner, and air conditioner control method provided in this application embodiment are configured such that the two ends of the blades are rotatably connected to the casing and the connecting rod, respectively. The driving component can drive the connecting rod to reciprocate along a first direction, so that multiple blades rotate relative to the casing to adjust the air outlet direction of the outdoor air outlet. Thus, when the air conditioner is running in cooling mode, when the outdoor air outlet blows out cold air, the blades are controlled to rotate to an angle of 0° to 45° with the surface of the casing where the outdoor air outlet is located, so that the cold air blown out of the outdoor air outlet is immediately drawn into the outdoor air inlet, accelerating air circulation, enhancing heat exchange efficiency, and increasing the cooling capacity of the air conditioner. When the outdoor air outlet blows out hot air, the blades are controlled to rotate to an angle of 90° to 145° with the surface of the casing where the outdoor air outlet is located, so that the hot air blown out of the outdoor air outlet is not immediately drawn into the outdoor air inlet, but the outdoor air inlet begins to draw in nearby cold air, ensuring heat exchange efficiency and avoiding insufficient cooling capacity of the air conditioner. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0032] Figure 1 This is a partial structural diagram of the outdoor unit of an air conditioner provided in an embodiment of this application, omitting the casing.

[0033] Figure 2 This is a schematic diagram of the casing in the open blade state, as provided in an embodiment of this application.

[0034] Figure 3 for Figure 2 The diagram shows an enlarged view of part A of the casing.

[0035] Figure 4 for Figure 3 The diagram shows an enlarged view of part B of the casing.

[0036] Figure 5 This is a schematic diagram of the casing when the blades are in the closed state, as provided in an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of the structure of an outdoor unit of an air conditioner when the blades are opened to a first preset angle, as provided in an embodiment of this application.

[0038] Figure 7 for Figure 6 The diagram shows the structure of the outdoor unit of the air conditioner from another perspective.

[0039] Figure 8 This is a schematic diagram of the structure of an outdoor unit of an air conditioner when the blades are opened to the second preset angle, as provided in an embodiment of this application.

[0040] Figure 9 for Figure 8 The diagram shows the structure of the outdoor unit of the air conditioner from another perspective.

[0041] Figure 10 This is a schematic diagram of the structure of the louver assembly provided in the embodiments of this application.

[0042] Figure 11 for Figure 10 The diagram shows an enlarged view of part C of the venetian blind assembly.

[0043] Explanation of icon numbers:

[0044] 100. Housing; 101. Outdoor air inlet; 102. Outdoor air outlet; 103. First shaft hole; 200. Outdoor heat exchanger; 210. Main body; 220. Bending part; 300. Outdoor fan; 400. Louver assembly; 410. Connecting rod; 411. Second shaft hole; 412. Connecting protrusion; 413. Second connecting hole; 420. Blade; 421. First rotating shaft; 422. Second rotating shaft; 500. Hydraulic cylinder; 510. Telescopic rod; 511. Connecting notch; 512. First connecting hole. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] This application provides an outdoor unit for an air conditioner, such as... Figures 1-11As shown, the outdoor unit of the air conditioner provided in this embodiment includes a housing 100, an outdoor heat exchanger 200, an outdoor fan 300, a louver assembly 400, and a drive component. The drive component is installed on the housing 100. The outdoor heat exchanger 200 and the outdoor fan 300 are both disposed inside the housing 100. The outdoor heat exchanger 200 is located on the air outlet side of the outdoor fan 300. An outdoor air inlet 101 and an outdoor air outlet 102 are provided on the housing 100. The louver assembly 400 is disposed at the outdoor air outlet 102. The louver assembly 400 includes a connecting rod 410 and multiple blades 420. One end of the blades 420 is rotatably connected to the connecting rod 410, and the other end of the blades 420 is rotatably connected to the housing 100. The connecting rod 410 is connected to the output end of the drive component. The drive component can drive the connecting rod 410 to reciprocate along a first direction, so that the multiple blades 420 rotate relative to the housing 100 to adjust the air outlet direction of the outdoor air outlet 102.

[0047] The outdoor unit of the air conditioner provided in this application embodiment has blades 420 whose two ends are respectively rotatably connected to the casing 100 and the connecting rod 410. The driving component can drive the connecting rod 410 to reciprocate along a first direction, so that multiple blades 420 rotate relative to the casing 100 to adjust the air outlet direction of the outdoor air outlet 102. Thus, when the air conditioner is running in cooling mode, when the outdoor air outlet 102 blows out cold air, the blades 420 are controlled to rotate to an angle (i.e., the opening angle α of the blades 420) between themselves and the surface of the casing 100 where the outdoor air outlet 102 is located is 0° to 45°, so that cold air flows from the indoor unit. When hot air is blown out of the outdoor air outlet 102, it is immediately drawn into the outdoor air inlet 101, which accelerates air circulation, enhances heat exchange efficiency, and increases the cooling capacity of the air conditioner. When hot air is blown out of the outdoor air outlet 102, the blades 420 are controlled to rotate to an angle of 90° to 145° with the surface of the casing 100 where the outdoor air outlet 102 is located (i.e., the opening angle α of the blades 420). This ensures that the hot air blown out of the outdoor air outlet 102 is not immediately drawn into the outdoor air inlet 101, while the outdoor air inlet 101 begins to draw in nearby cold air, ensuring heat exchange efficiency and avoiding insufficient cooling capacity of the air conditioner.

[0048] The outdoor air outlet 102 is equipped with a first temperature sensor for detecting the outdoor air outlet temperature, and the outdoor air inlet 101 is equipped with a third temperature sensor for detecting the outdoor air inlet temperature. Thus, the opening angle of the louver assembly 400 blades 420 can be adjusted by monitoring the air outlet temperature of the outdoor air outlet 102 and the air inlet temperature of the outdoor air inlet 101.

[0049] It is understandable that when the air conditioner is off, the blades 420 of the louver assembly 400 are closed, and the blades 420 of the louver assembly 400 and the surface of the casing 100 are on the same plane (i.e., the blades 420 are in a state of sealing the outdoor air outlet 102). Figure 5As shown; when the air conditioner is turned on, the blades 420 of the louver assembly 400 control the opening and closing angle according to the instructions of the control system. When the air conditioner is turned on, the dual-shaft motor of the outdoor fan 300 drives the axial fan of the outdoor fan 300 to rotate. At this time, the air is blown out through the fins of the outdoor heat exchanger 200 by the axial fan and blown out through the outdoor air outlet 102. Since the air conditioner has just started, the air blown out through the outdoor heat exchanger 200 (which acts as a condenser in cooling mode) is cold air. To accelerate air circulation and enhance heat exchange efficiency, the control drive unit moves the connecting rod 410 of the louver assembly 400 along the first direction, so that the angle between the blade 420 and the surface of the housing 100 (i.e., the opening angle α of the blade 420) is β1, where 0° < β1 ≤ 45°. The smaller β1 is, the faster the air circulation. This is because air is immediately drawn into the outdoor air inlet 101 on the housing 100 as soon as it is blown out from the outdoor air outlet 102 (the air movement path is shortened). The air circulation path is as follows: Figure 6 and Figure 7 As shown.

[0050] After the air conditioner has been running for a while, cold air is already blowing out from the indoor side. Due to the heat exchange function of the outdoor heat exchanger 200, the air blown out by the axial fan through the fins of the outdoor heat exchanger 200 is hot air. If the angle between the blades 420 of the louver assembly 400 and the surface of the casing 100 (i.e., the opening angle α of the blades 420) is maintained at β1, the hot air will be quickly sucked into the outdoor air inlet 101 on the casing 100 (the smaller β1 is, the faster the air circulation). This is because the air is immediately sucked into the outdoor air inlet 101 on the casing 100 as soon as it is blown out from the louver blades 420 (the movement path of the air is shortened). At this time, the hot air has been sucked into the vicinity of the outdoor heat exchanger 200 for heat exchange. Since the hot air cannot effectively cool the outdoor heat exchanger 200 (only cold air can cool it), the entire air conditioner is in an abnormal state. At this time, based on the detection of the ambient temperature sensor, the control system controls the linkage 410 driven by the drive component to move in the first direction, so that the angle between the blade 420 and the surface of the casing 100 (i.e., the opening angle α of the blade 420) is β2, 90°≤β2≤145°. The larger β2 is, the slower the air circulation, because the direction of the air blowing out from the outdoor air outlet 102 is opposite to the direction of the air intake from the outdoor air inlet 101 (the air movement path becomes longer). The outdoor air inlet 101 on the casing 100 begins to draw in nearby cold air to effectively cool the outdoor heat exchanger 200 and ensure heat exchange efficiency. The airflow path is as follows: Figure 8 and Figure 9 As shown.

[0051] When the air conditioner is turned off, the louver assembly 400's blades 420 automatically close, preventing mosquitoes from entering the outdoor unit's casing 100 and facilitating the cleaning of the outdoor unit.

[0052] Optionally, the number of blades 420 in each louver assembly 400 can be two, three, or more, depending on the size of the outdoor air outlet 102. For example, as shown... Figure 10 As shown, each louver assembly 400 includes five blades 420, which are arranged along the length of the connecting rod 410. The two ends of each blade 420 are rotatably connected to the housing 100 and the connecting rod 410, respectively. Thus, when the driving member drives the connecting rod 410 to move in the first direction, the five blades 420 can rotate relative to the housing 100, thereby adjusting the air outlet direction of the outdoor air outlet 102.

[0053] Specifically, in combination Figure 3 and Figure 10 As shown, the outdoor air outlet 102 has a first shaft hole 103 along its edge, and the connecting rod 410 has a second shaft hole 411. The blades 420 have a first rotating shaft 421 and a second rotating shaft 422 at both ends. The first rotating shaft 421 is rotatably inserted into the corresponding first shaft hole 103, and the second rotating shaft 422 is rotatably inserted into the corresponding second shaft hole 411. This allows the blades 420 to rotate relative to the housing 100, thereby adjusting the airflow direction of the outdoor air outlet 102. Specifically, the outdoor air outlet 102 has multiple first shaft holes 103 along its edge, and the connecting rod 410 has multiple second shaft holes 411. The first rotating shafts 421 of the multiple blades 420 are rotatably inserted into the multiple first shaft holes 103 one-to-one, and the second rotating shafts 422 of the multiple blades 420 are rotatably inserted into the multiple second shaft holes 411 one-to-one.

[0054] Optionally, there can be multiple louver assemblies 400 and one driving component. One driving component can drive the connecting rods 410 of multiple louver assemblies 400 to reciprocate simultaneously along the first direction. By using a single driving component to drive the connecting rods 410 of multiple louver assemblies 400, the number of driving components is reduced, lowering equipment costs. Alternatively, there can be multiple louver assemblies 400 and multiple driving components. Multiple driving components can drive the connecting rods 410 of multiple louver assemblies 400 to reciprocate along the first direction in a one-to-one correspondence. This allows for zoned control based on terminal monitoring, enabling free adjustment of the rotation angle of the blades 420 of any louver assembly 400, achieving precise control, and effectively improving the cooling capacity of the air conditioner. Optionally, the driving component can be a hydraulic cylinder 500, a pneumatic cylinder, or an electric push rod, selected according to actual needs. The driving component is mounted and fixed to the housing 100 via a mounting bracket.

[0055] When the driving component is a hydraulic cylinder 500, the connecting rod 410 is connected to the telescopic rod 510 of the hydraulic cylinder 500. When the telescopic rod 510 of the hydraulic cylinder 500 moves in extension and retraction, it will drive the connecting rod 410 to reciprocate along the first direction. When the connecting rod 410 moves along the first direction, it will drive the multiple blades 420 on it to rotate relative to the housing 100, thereby changing the air outlet direction of the outdoor air outlet 102.

[0056] Specifically, when the driving component is a hydraulic cylinder 500, the end of the telescopic rod 510 of the hydraulic cylinder 500 has a connecting notch 511, and one end of the connecting rod 410 has a connecting protrusion 412 corresponding to the connecting notch 511. The connecting protrusion 412 is inserted into the connecting notch 511 and connected to the telescopic rod 510 by fasteners. The two opposite sidewalls of the connecting notch 511 are respectively provided with first connecting holes 512, and the connecting protrusion 412 is provided with a second connecting hole 413. The second connecting hole 413 and the two first connecting holes 512 are connected by fasteners (such as pins, screws, or bolts) to achieve a detachable connection between the connecting rod 410 and the telescopic rod 510 of the hydraulic cylinder 500, facilitating the maintenance and replacement of the louver assembly 400. In other words, the connecting rod 410 and the telescopic rod 510 of the hydraulic cylinder 500 are connected by fasteners that sequentially pass through the first connecting hole 512, the second connecting hole 413, and the other first connecting hole 512.

[0057] When the driving component is a cylinder, the connecting rod 410 is connected to the telescopic rod 510 of the cylinder. When the telescopic rod 510 of the cylinder moves in extension and retraction, it will drive the connecting rod 410 to reciprocate along the first direction. When the connecting rod 410 moves along the first direction, it will drive the multiple blades 420 on it to rotate relative to the housing 100, thereby changing the air outlet direction of the outdoor air outlet 102.

[0058] Specifically, when the driving component is a cylinder, the end of the cylinder's telescopic rod 510 has a connecting notch 511, and one end of the connecting rod 410 has a connecting protrusion 412 corresponding to the connecting notch 511. The connecting protrusion 412 is inserted into the connecting notch 511 and connected to the telescopic rod 510 by fasteners. The connecting notch 511 has two opposite sidewalls with first connecting holes 512, and the connecting protrusion 412 has a second connecting hole 413. The second connecting hole 413 and the two first connecting holes 512 are connected by fasteners (e.g., pins, screws, or bolts) to achieve a detachable connection between the connecting rod 410 and the cylinder's telescopic rod 510, facilitating the maintenance and replacement of the louver assembly 400. In other words, the connecting rod 410 and the cylinder's telescopic rod 510 are connected by fasteners that sequentially pass through one of the first connecting holes 512, the second connecting hole 413, and the other first connecting hole 512.

[0059] When the driving component is an electric push rod, the connecting rod 410 is connected to the push rod of the electric push rod. When the push rod of the electric push rod extends or retracts, it will drive the connecting rod 410 to reciprocate along the first direction. When the connecting rod 410 moves along the first direction, it will drive the multiple blades 420 on it to rotate relative to the housing 100, thereby changing the air outlet direction of the outdoor air outlet 102.

[0060] Specifically, when the driving component is an electric push rod, the push rod end of the electric push rod has a connecting notch 511, and one end of the connecting rod 410 has a connecting protrusion 412 corresponding to the connecting notch 511. The connecting protrusion 412 is inserted into the connecting notch 511 and connected to the push rod by a fastener. The connecting notch 511 has two opposite sidewalls with first connecting holes 512, and the connecting protrusion 412 has a second connecting hole 413. The second connecting hole 413 and the two first connecting holes 512 are connected by fasteners (e.g., pins, screws, or bolts) to achieve a detachable connection between the connecting rod 410 and the push rod of the electric push rod, facilitating the maintenance and replacement of the louver assembly 400. In other words, the connecting rod 410 and the push rod of the electric push rod are connected by fasteners that sequentially pass through one of the first connecting holes 512, the second connecting hole 413, and the other first connecting hole 512.

[0061] Optionally, the driving component can also be a motor, which is connected to the connecting rod 410 via a transmission assembly to drive the connecting rod 410 to reciprocate along a first direction. In some embodiments of this application, the transmission assembly includes a gear and a rack. The rack is disposed on the connecting rod 410 and extends along the first direction. The gear is connected to the output shaft of the motor, and the gear meshes with the rack. When the motor drives the gear to rotate, the rack meshing with the gear will drive the connecting rod 410 to move along the first direction. When the connecting rod 410 moves along the first direction, it will drive the multiple blades 420 on it to rotate relative to the housing 100, thereby changing the air outlet direction of the outdoor air outlet 102. Of course, in other embodiments, the transmission assembly can also include a synchronous belt and a synchronous pulley set, or the transmission assembly can also include a chain and a sprocket set, as long as the transmission connection between the motor and the connecting rod 410 can be achieved.

[0062] Optionally, the outdoor heat exchanger 200 is U-shaped, comprising a main body 210 and bent portions 220 formed by bending at both ends of the main body 210. By setting the outdoor heat exchanger 200 into a U-shaped structure, compared with a traditional straight-plate condenser, this application significantly improves heat exchange efficiency and increases the cooling capacity of the air conditioner by adding two bent portions 220 for heat exchange, while keeping the size of the casing 100 unchanged.

[0063] Specifically, such as Figure 2 , Figures 5-9As shown, the housing 100 has a cuboid structure, which includes a front, a back, two sides, a top, and a bottom. The front, back, two sides, top, and bottom surround a cavity in which the outdoor heat exchanger 200 and the outdoor fan 300 are housed. The front and back are positioned opposite each other, the top and bottom are positioned opposite each other, and the two sides are positioned opposite each other. There are three outdoor air outlets 102, one of which is located on the back of the housing 100, and the other two are located on the two sides of the housing 100. Each of the two sides of the housing 100 also has an outdoor air inlet 101. The main body 210 of the outdoor heat exchanger 200 faces the outdoor air outlet 102 on the back, and the two bent parts 220 of the outdoor heat exchanger 200 face the outdoor air outlets 102 on the two sides. When the outdoor fan 300 is running, it draws air into the casing 100 from the outdoor air inlet 101 and blows it toward the outdoor heat exchanger 200. The air blown out by the outdoor fan 300 passes through the fins of the outdoor heat exchanger 200 to dissipate heat from the outdoor heat exchanger 200. Finally, the dissipated air is blown out of the casing 100 through the outdoor air outlet 102.

[0064] Understandably, in Figure 2 , Figures 5-9 In the illustrated embodiment, louver assemblies 400 are provided only at the outdoor air outlets 102 on the two sides of the housing 100; however, in other embodiments, louver assemblies 400 may also be provided at the outdoor air outlets 102 on the back of the housing 100, or outdoor air outlets 102 and louver assemblies 400 may also be provided on the top surface of the housing 100.

[0065] This application also provides an air conditioner, which includes an outdoor unit. The specific structure of the outdoor unit is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0066] This application also provides a method for controlling an air conditioner. This method is applied to the air conditioner provided in this application. The specific implementation of this air conditioner control method will be described in detail below.

[0067] Example 1

[0068] In this embodiment 1, the air conditioner also includes a first temperature sensor installed at the outdoor air outlet 102 of the outdoor unit. The first temperature sensor is used to detect the temperature of the air blown from the outdoor air outlet 102 and is connected to the air conditioner's control system. The air conditioner in this embodiment also includes a second temperature sensor installed at the indoor air outlet of the indoor unit. The second temperature sensor is used to detect the temperature of the air blown from the indoor air outlet and is connected to the air conditioner's control system. Specifically, the control method of this air conditioner includes the following steps:

[0069] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly 400 blades 420 is a first preset angle β1, where 0° < β1 ≤ 45°. As can be seen from the air conditioner structure of the above embodiment, when the opening angle α of the louver assembly 400 blades 420 is the first preset angle β1, air is immediately drawn into the outdoor air inlet 101 on the casing 100 as soon as it is blown out from the outdoor air outlet 102 (the air movement path is shortened), thereby accelerating air circulation and enhancing heat exchange efficiency. The air circulation path is as follows: Figure 6 and Figure 7 As shown.

[0070] A first real-time temperature is continuously acquired by a first temperature sensor, and a second real-time temperature is continuously acquired by a second temperature sensor. The first and second real-time temperatures are transmitted to the air conditioner's control system, which adjusts the opening angle α of the louver assembly 400's blades 420 based on the difference between the first and second real-time temperatures.

[0071] If the difference between the first real-time temperature and the second real-time temperature is not less than T1, then the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, where 90°≤β2≤145°, and 20℃<T1<25℃. As can be seen from the air conditioning structure of the above embodiment, when the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, the direction in which air is blown out from the outdoor air outlet 102 is opposite to the direction of air intake from the outdoor air inlet 101 (the air movement path becomes longer), and the outdoor air inlet 101 on the casing 100 begins to draw in nearby cold air to effectively cool the outdoor heat exchanger 200, ensuring heat exchange efficiency. The airflow path is as follows: Figure 8 and Figure 9 As shown.

[0072] Alternatively, in this embodiment, all blades 420 of the louver assembly 400 are closed after the air conditioner is turned off, which can prevent debris and small insects from entering the air conditioner outdoor unit, thereby keeping the air conditioner outdoor unit clean.

[0073] In this embodiment 1, the opening angle of the louver assembly 400 blades 420 is adjusted by monitoring the air outlet temperature of the outdoor air outlet 102 and the indoor air outlet, so that the air conditioner can work in the best condition.

[0074] Example 2

[0075] In this embodiment 2, the air conditioner also includes a first temperature sensor installed at the outdoor air outlet 102 of the outdoor unit. The first temperature sensor is used to detect the temperature of the air blown out of the outdoor air outlet 102 and is connected to the air conditioner's control system. The air conditioner in this embodiment also includes a third temperature sensor installed at the outdoor air inlet 101 of the outdoor unit. The third temperature sensor is used to detect the temperature of the air entering the outdoor air inlet 101 and is connected to the air conditioner's control system. Specifically, the control method of this air conditioner includes the following steps:

[0076] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly 400 blades 420 is a first preset angle β1, where 0° < β1 ≤ 45°. As can be seen from the air conditioner structure of the above embodiment, when the opening angle α of the louver assembly 400 blades 420 is the first preset angle β1, air is immediately drawn into the outdoor air inlet 101 on the casing 100 as soon as it is blown out from the outdoor air outlet 102 (the air movement path is shortened), thereby accelerating air circulation and enhancing heat exchange efficiency. The air circulation path is as follows: Figure 6 and Figure 7 As shown.

[0077] A first real-time temperature is continuously acquired by a first temperature sensor, and a third real-time temperature is continuously acquired by a third temperature sensor. The first and third real-time temperatures are transmitted to the air conditioner's control system, which adjusts the opening angle α of the louver assembly 420 based on the difference between the first and third real-time temperatures.

[0078] If the difference between the first real-time temperature and the third real-time temperature is not less than T2, then the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, where 90°≤β2≤145°, and 10℃<T2<15℃. As can be seen from the air conditioning structure of the above embodiment, when the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, the direction in which air is blown out from the outdoor air outlet 102 is opposite to the direction of air intake from the outdoor air inlet 101 (the air movement path becomes longer). The outdoor air inlet 101 on the casing 100 begins to draw in nearby cold air to effectively cool the outdoor heat exchanger 200, ensuring heat exchange efficiency. The airflow path is as follows: Figure 8 and Figure 9 As shown.

[0079] Alternatively, in this embodiment, all blades 420 of the louver assembly 400 are closed after the air conditioner is turned off, which can prevent debris and small insects from entering the air conditioner outdoor unit, thereby keeping the air conditioner outdoor unit clean.

[0080] In this embodiment 2, the opening angle of the louver assembly 400 blades 420 is adjusted by monitoring the air outlet temperature of the outdoor air outlet 102 and the air inlet temperature of the outdoor air inlet 101, so that the air conditioner can work in the best condition.

[0081] Example 3

[0082] In this embodiment 3, the air conditioner also includes a first temperature sensor installed at the outdoor air outlet 102 of the outdoor unit. The first temperature sensor is used to detect the temperature of the air blown out of the outdoor air outlet 102 and is connected to the air conditioner's control system. The air conditioner in this embodiment also includes a second temperature sensor installed at the indoor air outlet of the indoor unit. The second temperature sensor is used to detect the temperature of the air blown out of the indoor air outlet and is connected to the air conditioner's control system. The air conditioner in this embodiment also includes a third temperature sensor installed at the outdoor air inlet 101 of the outdoor unit. The third temperature sensor is used to detect the temperature of the air entering the outdoor air inlet 101 and is connected to the air conditioner's control system. Specifically, the control method of this air conditioner includes the following steps:

[0083] After the air conditioner starts operating in cooling mode, the opening angle α of the louver assembly 400 blades 420 is a first preset angle β1, where 0° < β1 ≤ 45°. As can be seen from the air conditioner structure of the above embodiment, when the opening angle α of the louver assembly 400 blades 420 is the first preset angle β1, air is immediately drawn into the outdoor air inlet 101 on the casing 100 as soon as it is blown out from the outdoor air outlet 102 (the air movement path is shortened), thereby accelerating air circulation and enhancing heat exchange efficiency. The air circulation path is as follows: Figure 6 and Figure 7 As shown.

[0084] A first real-time temperature is continuously acquired by a first temperature sensor, a second real-time temperature is continuously acquired by a second temperature sensor, and a third real-time temperature is continuously acquired by a third temperature sensor. The first, second, and third real-time temperatures are transmitted to the air conditioner's control system, which adjusts the opening angle α of the louver assembly 400's blades 420 based on the difference between the three real-time temperatures.

[0085] If the difference between the first real-time temperature and the second real-time temperature is not less than T1, and / or the difference between the first real-time temperature and the third real-time temperature is not less than T2, or the difference between the first real-time temperature and the second real-time temperature is less than T1 and the difference between the first real-time temperature and the third real-time temperature is less than T2 and the difference is less than a preset difference, where the difference being less than the preset difference means that the difference between the first real-time temperature and the second real-time temperature is less than the preset difference and the difference between the first real-time temperature and the third real-time temperature is less than the preset difference, for example, the preset difference is 2℃. If the above conditions are met, then the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, where 90°≤β2≤145°, 20℃<T1<25℃, and 10℃<T2<15℃. As can be seen from the air conditioning structure of the above embodiment, when the opening angle α of the blades 420 of the louver assembly 400 is the second preset angle β2, the direction of the air blowing out from the outdoor air outlet 102 is opposite to the direction of the air intake of the outdoor air inlet 101 (the air movement path becomes longer). The outdoor air inlet 101 on the casing 100 begins to draw in nearby cold air to effectively cool the outdoor heat exchanger 200 and ensure heat exchange efficiency. The airflow path is as follows: Figure 8 and Figure 9 As shown.

[0086] Alternatively, in this embodiment, all blades 420 of the louver assembly 400 are closed after the air conditioner is turned off, which can prevent debris and small insects from entering the air conditioner outdoor unit, thereby keeping the air conditioner outdoor unit clean.

[0087] In this embodiment 3, the opening angle of the louver assembly 400 blades 420 is adjusted by monitoring the air outlet temperature of the outdoor air outlet 102 and the indoor air outlet, as well as the air inlet temperature of the outdoor air inlet 101, so that the air conditioner can work in the best condition.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more features. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0090] The above provides a detailed description of the outdoor air conditioning unit, air conditioner, and air conditioning control method provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An outdoor unit for an air conditioner, characterized in that, The device includes a housing (100), an outdoor heat exchanger (200), an outdoor fan (300), a louver assembly (400), and a drive unit. The outdoor heat exchanger (200) and the outdoor fan (300) are both disposed inside the housing (100). The outdoor heat exchanger (200) is located on the air outlet side of the outdoor fan (300). The housing (100) has an outdoor air inlet (101) and an outdoor air outlet (102). The louver assembly (400) is disposed at the outdoor air outlet (102). The louver assembly (400) includes a connecting rod (410) and a plurality of blades (420). One end of the blade (420) is rotatably connected to the connecting rod (410), and the other end of the blade (420) is rotatably connected to the housing (100). The driving member can drive the connecting rod (410) to reciprocate along a first direction so that the plurality of blades (420) rotate relative to the housing (100) to adjust the air outlet direction of the outdoor air outlet (102). The outdoor air outlet (102) and the outdoor air inlet (101) are provided on the same side of the housing (100); When the air conditioner is in cooling mode, when the outdoor air outlet (102) blows out cold air, the drive unit can drive the connecting rod (410) to control the blade (420) to rotate to an angle of 0°~45° with the surface of the casing (100) where the outdoor air outlet (102) is located; when the outdoor air outlet (102) blows out hot air, the drive unit can drive the connecting rod (410) to control the blade (420) to rotate to an angle of 90°~145° with the surface of the casing (100) where the outdoor air outlet (102) is located.

2. The outdoor unit of the air conditioner according to claim 1, characterized in that, The outdoor air outlet (102) has a first shaft hole (103) on its edge, the connecting rod (410) has a second shaft hole (411), and the blade (420) has a first rotating shaft (421) and a second rotating shaft (422) at its two ends respectively. The first rotating shaft (421) is rotatably inserted into the corresponding first shaft hole (103), and the second rotating shaft (422) is rotatably inserted into the corresponding second shaft hole (411).

3. The outdoor unit of the air conditioner according to claim 1 or 2, characterized in that, The driving component is a hydraulic cylinder (500), a pneumatic cylinder, or an electric push rod, and the connecting rod (410) is connected to the telescopic rod (510) of the hydraulic cylinder (500), the telescopic rod (510) of the pneumatic cylinder, or the push rod of the electric push rod.

4. The outdoor unit of the air conditioner according to claim 3, characterized in that, When the driving component is a hydraulic cylinder (500), the telescopic rod (510) of the hydraulic cylinder (500) has a connection notch (511) at its end, and one end of the connecting rod (410) is provided with a connection protrusion (412) corresponding to the connection notch (511). The connection protrusion (412) is inserted into the connection notch (511) and connected to the telescopic rod (510) by fasteners. When the driving component is a cylinder, the end of the telescopic rod (510) of the cylinder is provided with a connection notch (511), and one end of the connecting rod (410) is provided with a connection protrusion (412) corresponding to the connection notch (511). The connection protrusion (412) is inserted into the connection notch (511) and connected to the telescopic rod (510) by fasteners. When the driving component is an electric push rod, the push rod end of the electric push rod is provided with a connection notch (511), and one end of the connecting rod (410) is provided with a connection protrusion (412) corresponding to the connection notch (511). The connection protrusion (412) is inserted into the connection notch (511) and connected to the push rod by a fastener.

5. The outdoor unit of the air conditioner according to claim 4, characterized in that, The two opposite sidewalls of the connecting notch (511) are respectively provided with a first connecting hole (512), and the connecting protrusion (412) is provided with a second connecting hole (413). The second connecting hole (413) and the two first connecting holes (512) are connected by fasteners.

6. The outdoor unit of the air conditioner according to claim 1 or 2, characterized in that, The driving component is a motor, which is connected to the connecting rod (410) via a transmission assembly to drive the connecting rod (410) to reciprocate along the first direction.

7. The outdoor unit of the air conditioner according to claim 6, characterized in that, The transmission assembly includes a gear and a rack, the rack being disposed on the connecting rod (410) and extending along the first direction, the gear being connected to the output shaft of the motor, and the gear meshing with the rack.

8. The outdoor unit of the air conditioner according to claim 1 or 2, characterized in that, The outdoor heat exchanger (200) is U-shaped, and the U-shaped outdoor heat exchanger (200) includes a main body (210) and bent portions (220) formed by bending at both ends of the main body (210).

9. The outdoor unit of the air conditioner according to claim 1 or 2, characterized in that, A first temperature sensor for detecting the outdoor air temperature is provided at the outdoor air outlet (102), and a third temperature sensor for detecting the outdoor air temperature is provided at the outdoor air inlet (101).

10. An air conditioner, characterized in that, The air conditioner includes an outdoor unit as described in any one of claims 1 to 9.

11. A method for controlling an air conditioner, characterized in that, Applied to the air conditioner as described in claim 10, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet (102) of the outdoor unit of the air conditioner, and a second temperature sensor installed at the indoor air outlet of the indoor unit of the air conditioner; the method includes the following steps: After the air conditioner starts operating in cooling mode, the opening angle α of the blades (420) of the louver assembly (400) is a first preset angle β1, 0°<β1≤45°; The first real-time temperature is continuously acquired through the first temperature sensor, and the second real-time temperature is continuously acquired through the second temperature sensor. If the difference between the first real-time temperature and the second real-time temperature is not less than T1, then the opening angle α of the blades (420) of the louver assembly (400) is the second preset angle β2, where 90°≤β2≤145°, and 20℃<T1<25℃.

12. A method for controlling an air conditioner, characterized in that, Applied to the air conditioner as described in claim 10, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet (102) of the outdoor unit of the air conditioner, and a third temperature sensor installed at the outdoor air inlet (101) of the outdoor unit of the air conditioner; the method includes the following steps: After the air conditioner starts operating in cooling mode, the opening angle α of the blades (420) of the louver assembly (400) is a first preset angle β1, 0°<β1≤45°; The first real-time temperature is continuously acquired through the first temperature sensor, and the third real-time temperature is continuously acquired through the third temperature sensor. If the difference between the first real-time temperature and the third real-time temperature is not less than T2, then the opening angle α of the blades (420) of the louver assembly (400) is the second preset angle β2, where 90°≤β2≤145° and 10℃<T2<15℃.

13. A method for controlling an air conditioner, characterized in that, Applied to the air conditioner as described in claim 10, the air conditioner further includes a first temperature sensor installed at the outdoor air outlet (102) of the outdoor unit of the air conditioner, a second temperature sensor installed at the indoor air outlet of the indoor unit of the air conditioner, and a third temperature sensor installed at the outdoor air inlet (101) of the outdoor unit of the air conditioner; the method includes the following steps: After the air conditioner starts operating in cooling mode, the opening angle α of the blades (420) of the louver assembly (400) is a first preset angle β1, 0°<β1≤45°; The first real-time temperature is continuously acquired through the first temperature sensor, the second real-time temperature is continuously acquired through the second temperature sensor, and the third real-time temperature is continuously acquired through the third temperature sensor. If the difference between the first real-time temperature and the second real-time temperature is not less than T1, and / or the difference between the first real-time temperature and the third real-time temperature is not less than T2, or the difference between the first real-time temperature and the second real-time temperature is less than T1 and the difference between the first real-time temperature and the third real-time temperature is less than T2 and the difference is less than a preset difference, then the opening angle α of the blades (420) of the venetian blind assembly (400) is a second preset angle β2, where 90°≤β2≤145°, 20℃<T1<25℃, and 10℃<T2<15℃.

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