An air conditioner and its control method

Abstract

The present invention discloses an air conditioner and its control method. The device includes: a wind guiding mechanism comprising a first wind guiding plate and a second wind guiding plate; the second wind guiding plate having a wind guiding panel and a driving device; being matched with the second wind guiding plate, a first rotating shaft, a second rotating shaft and a driving device are provided; wherein, the first rotating shaft is the rotating shaft of the wind guiding panel, and the first rotating shaft is assembled on the bottom shell of the indoor unit of the air conditioner; the rotating part of the wind guiding panel is sleeved on the first rotating shaft to enable the wind guiding panel to rotate around the first rotating shaft during the sweeping movement of the second wind guiding plate; the second rotating shaft is the driving shaft of the wind guiding panel; the second rotating shaft is arranged between the driving part of the wind guiding panel and the driving device and is used for controlling the movement of the wind guiding panel to perform a sweeping movement. In this solution, by separately arranging the rotating shaft and the driving shaft of the small wind guiding plate and controlling the sweeping process of the small wind guiding plate according to the current of the driving motor of the small wind guiding plate, the jitter of the small wind guiding plate is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner and a control method thereof, and more particularly to a distributed air supply air conditioner and a control method thereof. Background Art

[0002] In related solutions, most of the wall-mounted air conditioners have a single air outlet, and the direction of the air flow for cooling and heating is changed by the air deflector. However, to ensure a good user experience, the design requires that the cold air blows upward during cooling so that the cold air naturally falls; and the warm air blows downward during heating so that the warm air warms the feet first. Therefore, the design of a distributed air supply air conditioner has become the general trend. To achieve distributed air supply, some proposed distributed air supply air conditioners have large and small air deflectors (i.e., a large air deflector and a small air deflector). However, during the air outlet adjustment process of the small air deflector, when the wind forces acting on the upper and lower surfaces of the small air deflector are uneven, the small air deflector will vibrate, which easily generates noise and affects the user experience of using the air conditioner.

[0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The first object of the present invention is to provide an air conditioner to solve the problem that the distributed air supply air conditioner has large and small air deflectors, and the small air deflector vibrates during the air sweeping process, affecting the user experience, and achieve the effect of avoiding the vibration of the small air deflector by separately arranging the rotation shaft and the drive shaft of the small air deflector, which is beneficial to improving the user experience.

[0005] The second object of the present invention is to provide a control method for an air conditioner to solve the problem that the distributed air supply air conditioner has large and small air deflectors, and the small air deflector vibrates during the air sweeping process, affecting the user experience, and achieve the effect of avoiding the vibration of the small air deflector by separately arranging the rotation shaft and the drive shaft of the small air deflector and controlling the air sweeping process of the small air deflector according to the current of the drive motor of the small air deflector, which is beneficial to improving the user experience.

[0006] The present invention provides an air conditioner, which has an indoor unit with a single air outlet. A wind guiding mechanism is provided at the single air outlet, and the wind guiding mechanism includes a first wind guiding plate and a second wind guiding plate. The first wind guiding plate can adjust the air outlet direction of the single air outlet, and the second wind guiding plate can perform up-and-down air sweeping within the air outlet range of the single air outlet to achieve the up-and-down air sweeping function of the air conditioner. The second wind guiding plate has a wind guiding panel and a driving device. A first rotating shaft and a second rotating shaft are provided to match the wind guiding panel. Among them, the first rotating shaft is the rotating shaft of the wind guiding panel, and the first rotating shaft is assembled on the bottom case of the indoor unit of the air conditioner. The wind guiding panel has a rotating part, and the rotating part of the wind guiding panel is sleeved on the first rotating shaft to make the wind guiding panel rotate around the first rotating shaft during the air sweeping movement of the second wind guiding plate. The second rotating shaft is the driving shaft of the wind guiding panel. The wind guiding panel also has a driving part, and the second rotating shaft is arranged between the driving part of the wind guiding panel and the driving device to drive the wind guiding panel to move so that the wind guiding panel performs an air sweeping movement.

[0007] In some embodiments, the driving device includes a driving motor and a driving mechanism. Among them, the driving motor is fixedly arranged on the bottom case of the indoor unit of the air conditioner, and the driving mechanism is arranged between the shaft of the driving motor and the second rotating shaft.

[0008] In some embodiments, the driving mechanism includes a link mechanism.

[0009] In some embodiments, the link mechanism includes a first link and a second link. One end of the first link is connected to the shaft of the driving motor, and the other end of the first link is connected to one end of the second link. The other end of the second link is connected to the second rotating shaft.

[0010] In some embodiments, the driving mechanism further includes a sliding swing rod mechanism.

[0011] In some embodiments, the sliding swing rod mechanism includes a driving link. A guide groove is formed on the driving link, and during the air sweeping movement of the second wind guiding plate, the second rotating shaft slides in the guide groove.

[0012] Matched with the above air conditioner, on the other hand, the present invention provides a control method for an air conditioner, including: when the driving device of the second air deflector includes a driving motor, after the air conditioner is turned on, the indoor fan of the air conditioner is started, and the second air deflector performs a sweeping movement according to the current sweeping mode of the second air deflector, obtaining the current of the driving motor of the second air deflector, denoted as the driving current of the driving motor; obtaining the duration of the peak value of the driving current of the driving motor, denoted as the peak current duration of the driving motor; and obtaining the rotation speed of the indoor fan of the air conditioner; wherein, when the second air deflector just starts to perform a sweeping movement after the air conditioner is turned on, the current sweeping mode of the second air deflector is a preset sweeping mode; determining the peak value of the driving current of the driving motor, and determining whether the peak value of the driving current of the driving motor is greater than a set current; the set current is the current of the driving motor of the second air deflector during the normal sweeping movement of the second air deflector; if it is determined that the peak value of the driving current of the driving motor is greater than the set current, then controlling the process of the second air deflector performing a sweeping movement according to at least one of the peak current duration of the driving motor and the rotation speed of the indoor fan; if it is determined that the peak value of the driving current of the driving motor is less than or equal to the set current, then controlling the second air deflector to continue to perform a sweeping movement according to the current sweeping mode of the second air deflector.

[0013] In some embodiments, controlling the process of the second air deflector performing a sweeping movement according to at least one of the peak current duration of the driving motor and the rotation speed of the indoor fan includes: determining whether the peak current duration of the driving motor is greater than a set time; if it is determined that the peak current duration of the driving motor is greater than the set time, then determining the sweeping mode opposite to the sweeping direction in the current sweeping mode of the second air deflector as the new current sweeping mode of the second air deflector; and controlling the second air deflector to perform a sweeping movement according to the new current sweeping mode of the second air deflector; wherein, when the peak current duration of the driving motor is greater than the set time for the first time after the air conditioner is turned on, the new current sweeping mode of the second air deflector is the sweeping mode opposite to the sweeping direction in the preset sweeping mode; if it is determined that the peak current duration of the driving motor is less than or equal to the set time, then controlling the process of the second air deflector performing a sweeping movement according to the rotation speed of the indoor fan.

[0014] In some embodiments, controlling the process of the second air deflector performing a sweeping motion according to the rotation speed of the indoor fan includes: determining whether the rotation speed of the indoor fan is greater than a set rotation speed; if it is determined that the rotation speed of the indoor fan is greater than the set rotation speed, then controlling the rotation speed of the indoor fan to decrease by a set ratio, controlling the indoor fan to operate at the decreased rotation speed, and controlling the second air deflector to continue performing the sweeping motion according to the current sweeping mode of the second air deflector; if it is determined that the rotation speed of the indoor fan is less than or equal to the set rotation speed, then controlling the second air deflector to open to a set maximum air volume position, controlling the second air deflector to stop performing the sweeping operation, and sending a reminder message that a fault has occurred in the air conditioner.

[0015] Thus, in the solution of the invention, for a distributed air supply air conditioner with a single air outlet and double air deflectors (i.e., a large air deflector and a small air deflector), the rotation axis and the drive axis of the small air deflector (i.e., the second air deflector) are separately arranged. Since the distance between the rotation axis and the drive axis is relatively large, the control force of the drive device of the small air deflector on the movement of the small air deflector is effectively increased, and the control force of the drive device of the small air deflector on the movement of the small air deflector is effectively increased, suppressing the generation of jitter.

[0016] Furthermore, in the solution of the invention, for a distributed air supply air conditioner with a single air outlet and double air deflectors (i.e., a large air deflector and a small air deflector), the rotation axis and the drive axis of the small air deflector (i.e., the second air deflector) are separately arranged, and during the sweeping process of the small air deflector, the current of the drive motor of the small air deflector is detected. When the peak value of the current of the drive motor of the small air deflector is greater than the current of the drive motor during the normal operation of the small air deflector, if the duration of the current peak value is greater than a set time, then control the small air deflector to perform a reverse sweeping motion; if the duration of the current peak value is less than or equal to the set time, then reduce the wind speed when the wind speed of the indoor fan is relatively high, open the small air deflector to the maximum air volume position when the wind speed of the indoor fan is relatively low, control the small air deflector to stop sweeping and report a fault. Thus, by separately arranging the rotation axis and the drive axis of the small air deflector and controlling the sweeping process of the small air deflector according to the current of the drive motor of the small air deflector, the jitter of the small air deflector can be avoided, which is beneficial to better improving the user experience.

[0017] Other features and advantages of the present invention will be described in the following description, and some of them will become obvious from the description or be understood by implementing the present invention.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0019] Figure 1 It is a front view structural schematic diagram of an embodiment of the indoor unit of an air conditioner;

[0020] Figure 2 An upward view structural schematic diagram of an embodiment of the indoor unit of an air conditioner;

[0021] Figure 3 A structural schematic diagram of an embodiment of the driving structure of the second air deflector 22 in the indoor unit of an air conditioner, that is, a structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the downward air outlet state;

[0022] Figure 4 An intermediate cross-sectional structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the downward air outlet state;

[0023] Figure 5 A structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the distributed air supply state;

[0024] Figure 6 An intermediate cross-sectional structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the distributed air supply state;

[0025] Figure 7 A structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the upward air outlet state;

[0026] Figure 8 An intermediate cross-sectional structural schematic diagram of an embodiment of the indoor unit of an air conditioner in the upward air outlet state;

[0027] Figure 9 A structural schematic diagram of an embodiment of the second air deflector 22 in the indoor unit of an air conditioner;

[0028] Figure 10 A flowchart schematic diagram of an embodiment of the control method of a distributed air supply air conditioner;

[0029] Figure 11 A position schematic diagram of the driving device when the second air deflector 22 in the indoor unit of an air conditioner blows upward;

[0030] Figure 12 A position schematic diagram of the driving device when the second air deflector 22 in the indoor unit of an air conditioner supplies air in a distributed manner;

[0031] Figure 13 A position schematic diagram of the driving device when the second air deflector 22 in the indoor unit of an air conditioner blows downward;

[0032] Figure 14 A flowchart schematic diagram of an embodiment of the control method of the air conditioner of the present invention;

[0033] Figure 15 A flowchart schematic diagram of an embodiment of controlling the sweeping movement of the second air deflector 22 according to at least one of the peak current duration of the driving motor 6 and the rotation speed of the indoor fan in the method of the present invention;

[0034] Figure 16 A flowchart of an embodiment for controlling the process of the second air deflector 22 to perform a sweeping motion according to the rotational speed of the indoor fan in the method of the present invention;

[0035] Figure 17 A schematic structural diagram of the shaking angle A of the second air deflector 22 and the distance R between the rotating shaft and the driving shaft in the indoor unit of the air conditioner.

[0036] In combination with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0037] 11 - Panel; 12 - Panel body; 21 - First air deflector; 22 - Second air deflector; 31 - First rotating shaft; 32 - Second rotating shaft; 41 - First connecting rod; 42 - Second connecting rod; 43 - Driving connecting rod; 5 - Bottom case; 6 - Driving motor. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] In the distributed air - supply air conditioner of the related solution, the small air deflector drive is located on the rotating shaft of the small air deflector's movement. When the small air deflector is in the middle position, the air blown out from the air duct will pass through the upper and lower surfaces of the small air deflector. Under the action of the wind force, the uneven forces on the upper and lower surfaces will cause the small air deflector to fluctuate along the rotating shaft, resulting in relatively large vibrations. And due to the existence of this phenomenon, the small air deflector cannot be fixed in the middle position, and the air volume adjustment for up - and - down air supply cannot be achieved.

[0040] In order to at least solve the problem of the air deflector shaking of the small air deflector during air - supply adjustment, the solution of the present invention proposes a distributed air - supply air conditioner, specifically a distributed air - supply air conditioner with a single air outlet and double air deflectors (i.e., a large air deflector and a small air deflector), and designs a new driving device for the small air deflector. The rotating shaft and the driving shaft of the small air deflector are separately arranged. Since the distance between the rotating shaft and the driving shaft is relatively large, it effectively increases the control force of the driving device of the small air deflector on the movement of the small air deflector, suppresses the generation of shaking, can effectively solve the problem of the small air deflector shaking during air - supply adjustment, and at the same time can also solve the problem of air volume adjustment for distributed air supply, realizing stepless adjustment of the air volume for distributed air supply.

[0041] According to an embodiment of the present invention, an air conditioner is provided. SeeFigure 1 Schematic structural diagram of an embodiment of the device of the present invention. The air conditioner may include: The air conditioner has an indoor unit, and the indoor unit has a single air outlet. A wind guiding mechanism is provided at the single air outlet. The wind guiding mechanism includes a first wind guiding plate 21 and a second wind guiding plate 22. The first wind guiding plate 21 is a large wind guiding plate, and the second wind guiding plate 22 is a small wind guiding plate. The first wind guiding plate 21 can adjust the air outlet direction of the single air outlet, and the second wind guiding plate 22 can perform up and down air sweeping within the air outlet range of the single air outlet to realize the up and down air sweeping function of the air conditioner. Specifically, Figure 1 Front view structural schematic diagram of an embodiment of the indoor unit of an air conditioner. A novel distributed air supply wall-mounted air conditioner proposed by the solution of the present invention. The air guiding part of the air conditioner is composed of two air guiding plates, namely a first air guiding plate 21 and a second air guiding plate 22. The first air guiding plate 21 is a large air guiding plate, and the second air guiding plate 22 is a small air guiding plate, which can effectively increase the air supply distance when the air blows upward. Among them, the large air guiding plate can adjust the air outlet direction of the air conditioner, and the small air guiding plate can perform up and down air sweeping within the air outlet range of the air conditioner. As Figure 1 shown, the first wind guiding plate 21 is located on the front of the wall-mounted unit of the air conditioner and below the panel 11. The first wind guiding plate 21 (i.e., the large wind guiding plate) is pushed out by the driving device of the large wind guiding plate. Figure 2 Bottom view structural schematic diagram of an embodiment of the indoor unit of an air conditioner. As Figure 2 shown, when the wall-mounted unit of the air conditioner is in the normal hanging state, the second wind guiding plate 22 (i.e., the small wind guiding plate) is located on the lower side of the panel body 12 of the wall-mounted unit of the air conditioner. The movement direction of the second wind guiding plate 22 is an inward rotation type, that is, when the second wind guiding plate 22 is opened, the main body of the second wind guiding plate 22 rotates towards the direction of the internal air duct of the panel body 1 of the wall-mounted unit, and the movement track of the second wind guiding plate 22 is always inside the air duct.

[0042] In the solution of the present invention, the second wind guiding plate 22 has a wind guiding panel and a driving device. Matched with the wind guiding panel, a first rotating shaft 31 and a second rotating shaft 32 are provided.

[0043] Among them, the first rotating shaft 31 is the rotating shaft of the wind guiding panel, and the first rotating shaft 31 is assembled on the bottom shell of the indoor unit of the air conditioner. The wind guiding panel has a rotating part (such as the part of the wind guiding panel that contacts the housing of the wall-mounted unit. Specifically, reference can be made to Figure 9 the example shown, one end of the wind guiding panel). The rotating part of the wind guiding panel is sleeved on the first rotating shaft 31 so that the wind guiding panel rotates around the first rotating shaft 31 during the air sweeping movement of the second wind guiding plate 22.

[0044] The second rotating shaft 32 is the drive shaft of the air guiding panel. The air guiding panel further has a driving part (such as a part on the air guiding panel that can be driven, specifically, reference can be made to Figure 9 the example shown in the middle part of the air guiding panel), and the second rotating shaft 32 is arranged between the driving part of the air guiding panel and the driving device, and is used to drive the air guiding panel to move so that the air guiding panel performs a sweeping movement.

[0045] Specifically, Figure 3 FIG. is a schematic structural diagram of an embodiment of the driving structure of the second air guiding plate 22 in the indoor unit of an air conditioner, that is, a schematic structural diagram of an embodiment in the downward air outlet state of the indoor unit of the air conditioner. As Figure 3 shown, the second air guiding plate 22 mainly consists of an air guiding plate surface, a first rotating shaft 31 and a second rotating shaft 32. Figure 9 FIG. is a schematic structural diagram of an embodiment of the second air guiding plate 22 in the indoor unit of an air conditioner. As Figure 9 shown, the first rotating shaft 31 is a moving rotating shaft, that is, the first rotating shaft 31 is assembled with the bottom shell 5 of the wall-mounted machine, and the second air guiding plate 22 rotates around the first rotating shaft 31 during the movement. The second rotating shaft 32 is a control shaft, and the second rotating shaft 32 is connected to the driving device (i.e., the control mechanism of the second air guiding plate 22) of the second air guiding plate 22 to control the movement of the second air guiding plate 22.

[0046] A distributed air supply air conditioner proposed by the solution of the present invention is specifically a distributed air supply air conditioner with a single air outlet and double air guiding plates, and a new type of driving device for the small air guiding plate is designed for this air conditioner. The rotating shaft and the driving shaft of the small air guiding plate are separately arranged. Since the distance between the rotating shaft and the driving shaft is relatively large, the control force of the driving device of the small air guiding plate on the movement of the small air guiding plate is effectively increased, the generation of jitter is suppressed, the jitter problem of the small air guiding plate during air outlet adjustment can be effectively solved, and at the same time, the air volume adjustment problem of distributed air supply can be solved, and stepless adjustment of the air volume of distributed air supply can be realized.

[0047] In some embodiments, the driving device (i.e., the driving device of the second air guiding plate 22) includes: a driving motor 6 and a driving mechanism. Among them, the driving motor 6 is fixedly arranged on the bottom shell of the indoor unit of the air conditioner, such as the driving motor 6 is fixedly arranged on the bottom shell 5 of the indoor unit of the air conditioner. The driving mechanism is arranged between the shaft of the driving motor 6 and the second rotating shaft 32.

[0048] In the solution of the present invention, the design difference between the driving device of the second air deflector 22 of the distributed air supply air conditioner (i.e., the driving device of the second air deflector 22) and the driving device of the small air deflector of the air conditioner in the related solution is that: in the solution of the present invention, the driving shaft of the second air deflector 22 (i.e., the second rotating shaft 32) and the rotating shaft (i.e., the first rotating shaft 31) are independently designed. In the related solution, the rotating shaft and the driving shaft of the small air deflector are integrally arranged. The disadvantage is that it is necessary to use gears to transmit motion and torque to the rotating shaft. Whenever there is a gap in the motion transmission, it will result in a certain angle of rotational clearance. This rotational angle is transmitted to the side of the air deflector far from the rotation axis, and a large linear velocity motion will be generated. Since the second air deflector 22 of this air conditioner is an inward-rotating type, during its movement in the middle process, the second air deflector 22 will penetrate into the air duct, and the air flow velocity in the air duct is relatively large. In the design of the related solution, the transmission shaft of the small air deflector (i.e., the driving shaft) is located at the first rotating shaft 31, and the driving motion mechanism of the small air deflector has a weak control force on the small air deflector. Due to reasons such as structural gaps, under the action of the air flow (i.e., the air blown out by the air conditioner's blower through the air duct), the small air deflector will vibrate. This structural gap is the gap existing between gears and between the gear and the small air deflector during the transmission process in the related solution where the driving method is that the motor transmits motion and torque to the rotating shaft of the small air deflector through gear transmission to drive the small air deflector to rotate. In the solution of the present invention, the rotating shaft (i.e., the first rotating shaft 31) and the driving shaft (i.e., the second rotating shaft 32) are separated, and the distance between the rotating shaft (i.e., the first rotating shaft 31) and the driving shaft (i.e., the second rotating shaft 32) is relatively large, effectively increasing the control force of the driving device of the second air deflector 22 (such as the mechanism composed of the first connecting rod 41 and the second connecting rod 42 or the sliding swing rod mechanism) on the movement of the second air deflector 22 and suppressing the generation of vibration.

[0049] Among them, Figure 17 It is a schematic structural diagram of the vibration angle A of the second air deflector 22 in the indoor unit of the air conditioner and the distance R between the rotating shaft and the driving shaft. Refer to Figure 17 the example shown. When the motion gap of the driving mechanism is transmitted to the driving shaft of the air deflector, there will be a stroke distance X, and this stroke distance X should be equal to Figure 17In the example shown, for the arc length, the jitter angle of the second air deflector 22 is A, and the stroke distance X must exist in the design. To avoid or reduce jitter, it is required that the jitter angle A of the second air deflector 22 be as small as possible. With a fixed arc length, when the distance R is larger, the jitter angle A of the second air deflector 22 is smaller. In the design of related solutions, when the rotation axis coincides with the drive axis, the jitter angle A of the second air deflector 22 will be very large. Since the clearance stroke is only a few millimeters, as long as the distance R and the stroke distance X are not in the same order of magnitude, the anti-jitter effect can be achieved. The clearance is only a few millimeters, so as long as a distance R not less than ten to twenty millimeters is appropriately given. However, the larger the distance R, the larger the drive mechanism needs to be, so the size of the distance R needs to be determined according to the specific design.

[0050] In some embodiments, the drive mechanism includes: a linkage mechanism. Preferably, the linkage mechanism includes: a first link 41 and a second link 42. Wherein, one end of the first link 41 is connected to the shaft of the drive motor 6, and the other end of the first link 41 is connected to one end of the second link 42. The other end of the second link 42 is connected to the second rotating shaft 32.

[0051] Specifically, as Figure 3 shown, the control mechanism (i.e., the drive device or the drive device) of the second air deflector 22 is mainly composed of a drive motor 6, a first link 41, and a second link 42. Wherein, the drive motor 6 is fixed to the bottom case 5 of the wall-mounted unit of the air conditioner by screws. One end of the first link 41 is connected to the shaft of the drive motor 6, one end of the second link 42 is connected to the other end of the first link 41, and the other end of the second link 42 is connected to the second rotating shaft 32 of the second air deflector 22.

[0052] The solution of the present invention is a distributed air supply wall-mounted unit designed with a single air outlet (i.e., one air outlet). The wall-mounted unit uses the second air deflector 22 to divert the air blown out of the air outlet to different air outlet directions to achieve distributed air supply. Among them, different air outlet directions include: a downward air outlet direction, an upward air outlet direction, and a distributed air outlet direction. Figure 4 For a schematic middle cross-sectional structure diagram of an embodiment when the indoor unit of the air conditioner is in the downward air outlet state, as Figure 3 and Figure 4 shown, when in the heating mode, the air conditioner blows downward. At this time, the second air deflector 22 is in the highest position, and the first air deflector 21 is closed. At this time, all the air is blown out from the lower air outlet to achieve carpet heating. At this time, the drive device of the second air deflector 22 rotates the first link 41 counterclockwise to the highest position (that is, when the second air deflector 22 moves to the upper limit position during downward air outlet, as Figure 4 shown, the air blows out in the direction of the arrow).

[0053] Figure 7The figure is a schematic structural diagram of an embodiment of an indoor unit of an air conditioner in an upward air outlet state. Figure 8 It is a schematic middle sectional view structural diagram of an embodiment of an indoor unit of an air conditioner in an upward air outlet state. As Figure 7 and Figure 8 shown, when in the cooling mode, the air conditioner blows air upward. At this time, the second air deflector 22 is at the lowest position (at the marked position in Figure 8 at this time, which is the lowest position of the movement of the air deflector. It can be viewed in comparison with the highest position), the first air deflector 21 is opened. At this time, all the air blows upward through the first air deflector 21 to achieve shower cooling. At this time, the driving device of the second air deflector 22 rotates the first connecting rod 41 clockwise to the lowest position (when the first connecting rod 41 moves to the lowest position, the second air deflector 22 also moves to the lowest position).

[0054] Figure 5 The figure is a schematic structural diagram of an embodiment of an indoor unit of an air conditioner in a distributed air supply state. Figure 6 It is a schematic middle sectional view structural diagram of an embodiment of an indoor unit of an air conditioner in a distributed air supply state. As Figure 5 and Figure 6 shown, when performing distributed air supply, at this time the first air deflector 21 is opened, and the second air deflector 22 is between the upper limit position (i.e., the highest position) and the lower limit position (i.e., the lowest position). In the design of the driving device of the second air deflector 22, stepless adjustment of the second air deflector 22 between the upper limit position and the lower limit position can be achieved (i.e., there is no gear limit and it can be fixed at any position in the stroke), and the up and down air output of the distributed air supply can be adjusted. The total air volume at the air outlet can be adjusted from 0 to the maximum air volume according to the motor speed. In the solution of the present invention, the second air deflector can be freely adjusted between the two limit positions to adjust the ratio of the up and down air output, so stepless adjustment of the air volume can be achieved. Among them, the highest position and the lowest position in the above-mentioned cooling mode and heating mode are set as the default start settings. That is to say, when the cooling mode is turned on, the second air deflector 22 will be automatically set to the lowest position, but the user can use the remote control to adjust the actual position of the second air deflector 22 to make the second air deflector 22 stop at any position between the highest position and the lowest position.

[0055] In some embodiments, the driving mechanism further includes: a sliding swing rod mechanism. Preferably, the sliding swing rod mechanism includes: a driving connecting rod 43. A guide groove is provided on the driving connecting rod 43. During the process of the second air deflector 22 performing a sweeping movement, the second rotating shaft 32 slides in the guide groove.

[0056] In the solution of the present invention, the driving device of the second air deflector 22 is changed from a link mechanism to a sliding swing rod mechanism. The sliding swing rod mechanism consists of three parts, namely a driving motor 6, a driving link 43, and a moving part air deflector (i.e., the second air deflector 22). One end of the driving link 43 is directly connected to the rotating shaft of the driving motor 6 (i.e., the first rotating shaft 31). A guide groove is formed in the middle part of the driving link 43. During the movement, the second rotating shaft 32 of the second air deflector 22 slides in the guide groove of the driving link 43. The second air deflector 22 can only rotate around the first rotating shaft 31 of the second air deflector 22 (the movement rotation axis of the second air deflector 22 is always the first rotating shaft 31). Therefore, under the action of the torque of the driving motor 6 perpendicular to the driving link 43, the second air deflector 22 is driven to rotate.

[0057] Figure 11 It is a schematic diagram of the position of the driving device when the second air deflector 22 in the indoor unit of the air conditioner blows out air. As Figure 11 shown, the driving link 43 is a link, and a groove is formed on the link. The middle part of the driving link 43 is a general reference, that is, a certain section on the link, and the length dimension is determined according to the specific part dimensions. The position of the driving device when the second air deflector 22 blows out air during the movement is as Figure 11 shown, the position of the driving device when the second air deflector 22 distributes air during the movement is as Figure 12 shown, and the position of the driving device when the second air deflector 22 blows out air downward during the movement is as Figure 13 shown.

[0058] By adopting the technical solution of the present invention, for a distributed air supply air conditioner with a single air outlet and double air deflectors (i.e., a large air deflector and a small air deflector), the rotation axis and the driving axis of the small air deflector (i.e., the second air deflector) are separately arranged. Since the distance between the rotation axis and the driving axis is relatively large, the control force of the driving device of the small air deflector on the movement of the small air deflector is effectively increased, and the control force of the driving device of the small air deflector on the movement of the small air deflector is effectively increased, thereby suppressing the generation of jitter.

[0059] According to an embodiment of the present invention, a control method for an air conditioner corresponding to the air conditioner is also provided. As Figure 14 shown in the flowchart of an embodiment of the method of the present invention. The control method of the air conditioner may include: step S110 to step S140.

[0060] In step S110, when the driving device of the second air deflector 22 includes a driving motor 6, after the air conditioner is turned on, the indoor fan of the air conditioner starts, and the second air deflector 22 performs a sweeping movement according to the current sweeping mode of the second air deflector 22, obtain the current of the driving motor 6 of the second air deflector 22, which is recorded as the driving current of the driving motor 6; obtain the duration of the peak value of the driving current of the driving motor 6, which is recorded as the peak current duration of the driving motor 6; and obtain the rotation speed of the indoor fan of the air conditioner. Wherein, when the second air deflector 22 just starts to perform a sweeping movement after the air conditioner is turned on, the current sweeping mode of the second air deflector 22 is a preset sweeping mode.

[0061] In step S120, determine the peak value of the driving current of the driving motor 6, and determine whether the peak value of the driving current of the driving motor 6 is greater than a set current. The set current is the current of the driving motor 6 of the second air deflector 22 during the normal sweeping movement of the second air deflector 22.

[0062] In step S130, if it is determined that the peak value of the driving current of the driving motor 6 is greater than the set current, then control the process of the second air deflector 22 performing a sweeping movement according to at least one of the peak current duration of the driving motor 6 and the rotation speed of the indoor fan.

[0063] In step S140, if it is determined that the peak value of the driving current of the driving motor 6 is less than or equal to the set current, then control the process of the second air deflector 22 performing a sweeping movement according to the current sweeping mode of the second air deflector 22, that is, control the second air deflector 22 to continue to perform a sweeping movement according to the current sweeping mode of the second air deflector 22.

[0064] Specifically, Figure 10 is a schematic flow chart of an embodiment of the control method for a distributed air supply air conditioner. A motion control method proposed by the solution of the present invention, that is, the control method for a distributed air supply air conditioner, is used to suppress the jitter problem during the movement of the second air deflector 22. As Figure 10 shown, a control method for a distributed air supply air conditioner proposed by the solution of the present invention includes:

[0065] Step 1: After the air conditioner is turned on and running, the second air deflector 22 starts to perform a sweeping movement, and then step 2 is executed.

[0066] Step 2: When the second air deflector 22 starts the sweeping movement, detect the current of the drive motor 6 of the second air deflector 22 (for example, the detection of the current of the drive motor 6 of the second air deflector 22 can be achieved through electronic components), and determine whether the current of the drive motor 6 of the second air deflector 22 is greater than the current A of the drive motor 6 when the second air deflector 22 runs smoothly: If yes, execute Step 3; otherwise, control the second air deflector 22 to perform normal sweeping movement.

[0067] In some embodiments, for the specific process of controlling the sweeping movement of the second air deflector 22 according to at least one of the peak current duration of the drive motor 6 and the rotation speed of the indoor fan in step S130, refer to the following exemplary description.

[0068] The following combines Figure 15 As shown in the schematic flowchart of an embodiment of the method of the present invention for controlling the sweeping movement of the second air deflector 22 according to at least one of the peak current duration of the drive motor 6 and the rotation speed of the indoor fan, the specific process of controlling the sweeping movement of the second air deflector 22 according to at least one of the peak current duration of the drive motor 6 and the rotation speed of the indoor fan in step S140 is further described, including: steps S210 to S230.

[0069] Step S210, determine whether the peak current duration of the drive motor 6 is greater than the set time.

[0070] Step S220, if it is determined that the peak current duration of the drive motor 6 is greater than the set time, then determine the sweeping mode opposite to the sweeping direction in the current sweeping mode of the second air deflector 22 as the new current sweeping mode of the second air deflector 22. And control the second air deflector 22 to perform sweeping movement according to the new current sweeping mode of the second air deflector 22, and then return to continue obtaining the current of the drive motor 6 of the second air deflector 22, continue obtaining the duration of the peak of the drive current of the drive motor 6, and continue obtaining the rotation speed of the indoor fan of the air conditioner. The second sweeping direction is the sweeping direction opposite to the first sweeping direction. Among them, when the peak current duration of the drive motor 6 is greater than the set time for the first time after the air conditioner is turned on, the new current sweeping mode of the second air deflector 22 is the sweeping mode opposite to the sweeping direction in the preset sweeping mode.

[0071] Step S230, if it is determined that the peak current duration of the drive motor 6 is less than or equal to the set time, then control the sweeping movement of the second air deflector 22 according to the rotation speed of the indoor fan.

[0072] Such as Figure 10As shown, a control method for a distributed air supply air conditioner proposed by the solution of the present invention further includes:

[0073] Step 3: When the second air deflector 22 vibrates, the resistance received by the drive motor 6 of the second air deflector 22 will fluctuate. Therefore, the current of the drive motor 6 of the second air deflector 22 will also fluctuate. When it is detected that the peak value of the current fluctuation of the drive motor 6 of the second air deflector 22 is greater than the current A of the drive motor 6 during the normal operation of the second air deflector 22 (i.e., the current A of the drive motor 6 when the second air deflector 22 operates smoothly), step 4 is executed at this time.

[0074] Step 4: Further judge the duration of the peak current when the peak value of the current fluctuation of the drive motor 6 of the second air deflector 22 is greater than the current A of the drive motor 6 during the normal operation of the second air deflector 22. Judge whether the duration of the peak current is greater than the set value △t (△t can be set through experimental tests according to different models, usually 1-2s is sufficient): If so, step 5 is executed; otherwise, step 6 is executed.

[0075] In some embodiments, the specific process of controlling the process of the second air deflector 22 performing a sweeping motion according to the rotation speed of the indoor fan in step S230 is as follows in the following exemplary description.

[0076] The following combines Figure 16 As shown, a schematic flowchart of an embodiment of controlling the process of the second air deflector 22 performing a sweeping motion according to the rotation speed of the indoor fan in the method of the present invention further illustrates the specific process of controlling the process of the second air deflector 22 performing a sweeping motion according to the rotation speed of the indoor fan in step S230, including: step S310 to step S330.

[0077] Step S310: Determine whether the rotation speed of the indoor fan is greater than the set rotation speed, and the set rotation speed is, for example, 1100 r / min.

[0078] Step S320: If it is determined that the rotation speed of the indoor fan is greater than the set rotation speed, then after controlling the rotation speed of the indoor fan to be reduced by a set proportion, control the indoor fan to operate at the reduced rotation speed, and control the second air deflector 22 to continue to perform a sweeping motion according to the current sweeping mode of the second air deflector 22, and then return to continue to obtain the current of the drive motor 6 of the second air deflector 22, continue to obtain the duration of the peak value of the drive current of the drive motor 6, and continue to obtain the rotation speed of the indoor fan of the air conditioner.

[0079] Step S330: If it is determined that the rotation speed of the indoor fan is less than or equal to the set rotation speed, then control the second air deflector 22 to open to the set maximum air volume position, control the second air deflector 22 to stop performing a sweeping operation, and send a reminder message that the air conditioner has a fault.

[0080] Specifically, as Figure 10 shown, a control method for a distributed air supply air conditioner proposed by the solution of the present invention further includes:

[0081] Step 5: When the peak current duration is greater than the set value Δt, at this time, it is the stall caused by the second air deflector 22 moving to the stroke limit position (the stroke limit position is the general term for the upper limit position and the lower limit position, and is also the highest position and the lowest position). At this time, control the second air deflector 22 to move in the reverse direction to continue sweeping, and return to Step 2 to continue detecting and circularly judging the driving current of the second air deflector 22.

[0082] Step 6: If the peak current duration is less than the set value Δt, at this time, it is the second air deflector 22 that shakes. At this time, judge the speed of the fan (i.e., the indoor fan), and judge whether the fan speed is greater than the set speed (such as 1100 r / min): If so, execute Step 7, otherwise execute Step 8.

[0083] Step 7: When the fan speed is relatively fast, such as when the fan speed exceeds 1100 r / min (only a reference value, which can be appropriately adjusted according to experiments on different models), at this time, the fan speed is relatively high, reduce the fan speed by 5%, and return to Step 2 to continue detecting.

[0084] Step 8: If the fan speed is lower than 1100 r / min, at this time, the fan speed is relatively low and the second air deflector 22 shakes. At this time, open the second air deflector 22 to the maximum, stop sweeping, and display an error message to prompt the user to repair. The error here is to prompt the user that the anti-shake measure fails, which may be due to an excessive driving gap, resulting in an abnormality in the driving mechanism, and prompt the user to repair. However, at this time, it is still possible not to perform the sweeping operation and not to shut down, but only to prompt the user.

[0085] Since the processing and functions implemented by the method of this embodiment are basically corresponding to the embodiments, principles and examples of the aforementioned air conditioner, for the parts not described in detail in the description of this embodiment, reference can be made to the relevant descriptions in the aforementioned embodiments, and details will not be repeated here.

[0086] Adopting the technical solution of this embodiment, for a distributed air supply air conditioner with a single air outlet and double air deflectors (i.e., large and small air deflectors), the rotation shaft and the drive shaft of the small air deflector (i.e., the second air deflector) are separately arranged. During the process of the small air deflector sweeping the air, the current of the drive motor of the small air deflector is detected. When the peak value of the current of the drive motor of the small air deflector is greater than the current of the drive motor during the normal operation of the small air deflector, if the duration of the current peak value is greater than the set time, the small air deflector is controlled to move in the reverse direction for air sweeping; if the duration of the current peak value is less than or equal to the set time, when the wind speed of the indoor fan is high, the wind speed is reduced for operation, and when the wind speed of the indoor fan is low, the small air deflector is opened to the position of the maximum air volume, and the small air deflector is controlled to stop air sweeping and a fault is reported. This effectively increases the control force of the drive device of the small air deflector on the movement of the small air deflector, suppresses the generation of jitter, can effectively solve the jitter problem of the small air deflector during air outlet adjustment, and at the same time can also solve the air volume adjustment problem of distributed air supply, realizing stepless adjustment of the air volume of distributed air supply.

[0087] In summary, it is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0088] The above are only the embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An air conditioner, characterized in that, The air conditioner has an indoor unit, and the indoor unit has a single air outlet; a wind guiding mechanism is provided at the single air outlet, and the wind guiding mechanism includes a first wind guiding plate (21) and a second wind guiding plate (22); the first wind guiding plate (21) can adjust the air outlet direction of the single air outlet, and the second wind guiding plate (22) can perform up and down air sweeping within the air outlet range of the single air outlet to realize the up and down air sweeping function of the air conditioner; The second wind guiding plate (22) has a wind guiding panel and a driving device; a first rotating shaft (31) and a second rotating shaft (32) are provided to match the wind guiding panel; wherein, The first rotating shaft (31) is the rotating shaft of the wind guiding panel, and the first rotating shaft (31) is assembled on the bottom case of the indoor unit of the air conditioner; the wind guiding panel has a rotating part, and the rotating part of the wind guiding panel is sleeved on the first rotating shaft (31) so that the wind guiding panel rotates around the first rotating shaft (31) during the air sweeping movement of the second wind guiding plate (22); The second rotating shaft (32) is the driving shaft of the wind guiding panel; the wind guiding panel also has a driving part, and the second rotating shaft (32) is arranged between the driving part of the wind guiding panel and the driving device for driving the wind guiding panel to move so that the wind guiding panel performs air sweeping movement; By separately arranging the rotating shaft and the driving shaft of the second wind guiding plate (22) and controlling the air sweeping process of the second wind guiding plate (22) according to the current of the driving motor of the second wind guiding plate (22).

2. The air conditioner according to claim 1, wherein The driving device includes: a driving motor (6) and a driving mechanism; wherein, The driving motor (6) is fixedly arranged on the bottom case of the indoor unit of the air conditioner; the driving mechanism is arranged between the shaft of the driving motor (6) and the second rotating shaft (32).

3. The air conditioner according to claim 2, wherein The driving mechanism includes: a link mechanism.

4. The air conditioner according to claim 3, wherein The link mechanism includes: a first link (41) and a second link (42); wherein, One end of the first link (41) is connected to the shaft of the driving motor (6), and the other end of the first link (41) is connected to one end of the second link (42); the other end of the second link (42) is connected to the second rotating shaft (32).

5. The air conditioner according to claim 2, characterized in that, The driving mechanism further includes: a sliding swing rod mechanism.

6. The air conditioner according to claim 5, characterized in that, The sliding swing rod mechanism includes: a driving link (43); a guide groove is formed in the driving link (43), and during the air sweeping movement of the second wind guiding plate (22), the second rotating shaft (32) slides in the guide groove.

7. A control method for an air conditioner according to any one of claims 1 to 6, characterized in that, Including: When the driving device of the second wind guiding plate (22) includes a driving motor (6), after the air conditioner is turned on, the indoor fan of the air conditioner is started, and the second wind guiding plate (22) performs air sweeping movement according to the current air sweeping mode of the second wind guiding plate (22), obtain the current of the driving motor (6) of the second wind guiding plate (22), which is recorded as the driving current of the driving motor (6); obtain the duration of the peak value of the driving current of the driving motor (6), which is recorded as the peak current duration of the driving motor (6); And obtain the rotation speed of the indoor fan of the air conditioner; wherein, when the second air deflector (22) starts to perform the sweeping movement after the air conditioner is turned on, the current sweeping mode of the second air deflector (22) is a preset sweeping mode; Determine the peak value of the driving current of the driving motor (6), and determine whether the peak value of the driving current of the driving motor (6) is greater than the set current; the set current is the current of the driving motor (6) of the second air deflector (22) during the normal sweeping movement of the second air deflector (22); If it is determined that the peak value of the driving current of the driving motor (6) is greater than the set current, then control the process of the second air deflector (22) performing the sweeping movement according to at least one of the peak current duration of the driving motor (6) and the rotation speed of the indoor fan; If it is determined that the peak value of the driving current of the driving motor (6) is less than or equal to the set current, then control the second air deflector (22) to continue to perform the sweeping movement according to the current sweeping mode of the second air deflector (22).

8. The control method of the air conditioner according to claim 7, wherein Controlling the process of the second air deflector (22) performing the sweeping movement according to at least one of the peak current duration of the driving motor (6) and the rotation speed of the indoor fan includes: Determine whether the peak current duration of the driving motor (6) is greater than the set time; If it is determined that the peak current duration of the driving motor (6) is greater than the set time, then determine the sweeping mode opposite to the sweeping direction in the current sweeping mode of the second air deflector (22) as the new current sweeping mode of the second air deflector (22); and control the second air deflector (22) to perform the sweeping movement according to the new current sweeping mode of the second air deflector (22); wherein, when the peak current duration of the driving motor (6) is greater than the set time for the first time after the air conditioner is turned on, the new current sweeping mode of the second air deflector (22) is the sweeping mode opposite to the sweeping direction in the preset sweeping mode; If it is determined that the peak current duration of the driving motor (6) is less than or equal to the set time, then control the process of the second air deflector (22) performing the sweeping movement according to the rotation speed of the indoor fan.

9. The control method of the air conditioner according to claim 8, wherein Controlling the process of the second air deflector (22) performing the sweeping movement according to the rotation speed of the indoor fan includes: Determine whether the rotation speed of the indoor fan is greater than the set rotation speed; If it is determined that the rotation speed of the indoor fan is greater than the set rotation speed, then control the rotation speed of the indoor fan to be reduced by a set ratio, control the indoor fan to operate at the reduced rotation speed, and control the second air deflector (22) to continue to perform the sweeping movement according to the current sweeping mode of the second air deflector (22); If it is determined that the rotational speed of the indoor fan is less than or equal to the set rotational speed, after controlling the second air deflector (22) to open to the set maximum air volume position, control the second air deflector (22) to stop the sweeping operation, and send a reminder message indicating that a fault has occurred in the air conditioner.

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