CN115875835A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN115875835A CN115875835A CN202211284818.1A CN202211284818A CN115875835A CN 115875835 A CN115875835 A CN 115875835A CN 202211284818 A CN202211284818 A CN 202211284818A CN 115875835 A CN115875835 A CN 115875835A
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- air deflector
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000015654 memory Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/74—Ozone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/20—Sunlight
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides an air conditioner and a control method thereof, wherein the air conditioner comprises a shell provided with an air outlet, an air deflector rotatably arranged at the air outlet and a stepping motor for driving the air deflector to rotate, and the control method comprises the following steps: receiving an air conditioner shutdown instruction; controlling a stepping motor to drive an air deflector to a preset reference angle from a current angle; and controlling the stepping motor to drive the air deflector from the reference angle to the closing angle. The invention solves the problem that the air deflector cannot be closed.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof.
Background
An air deflector for guiding the air outlet direction is usually arranged at the air outlet of the air conditioner, and the air deflector is driven by a stepping motor. When the air conditioner is shut down, the air deflector rotates to a closing angle to shield the air outlet.
After the air conditioner runs for a long time, due to the factors such as self gravity, manual pulling of a user and the like, the air deflector is often not closed in place, and the appearance of the air conditioner is affected.
Therefore, how to reasonably solve the problem of closing the air deflector of the air conditioner becomes a problem which needs to be solved urgently in the field of air conditioners.
Disclosure of Invention
The present invention is directed to solve at least one of the above-mentioned drawbacks of the prior art, and to provide an air conditioner and a control method thereof capable of solving the problem that an air deflector cannot be closed.
In one aspect, the present invention provides a control method for an air conditioner, where the air conditioner includes a casing with an air outlet, an air deflector rotatably disposed at the air outlet, and a stepping motor for driving the air deflector to rotate, and the control method includes the following steps:
receiving an air conditioner shutdown instruction;
controlling the stepping motor to drive the air deflector to a preset reference angle from a current angle;
and controlling the stepping motor to drive the air deflector from the reference angle to a closing angle.
Alternatively, the step of controlling the stepping motor to drive the air deflector from the reference angle to the closing angle may include:
acquiring a first step number which is prestored and is required by the stepping motor to drive the air deflector from the reference angle to the closing angle;
and controlling the stepping motor to operate in the closing direction by the first step number.
Optionally, the control method further includes:
counting the received air conditioner shutdown instruction;
when the count is accumulated to reach a first preset number of times and the air conditioner is shut down, the step after the pre-stored closing step number required for driving the air deflector from the reference angle to the closing angle by the stepping motor is acquired is as follows: and controlling the stepping motor to rotate towards the closing direction by the sum of the first step number and a preset first calibration step number.
Optionally, the air conditioner comprises a stopper configured to: blocking the air deflector when the air deflector rotates to the reference angle; and is provided with
The step of controlling the stepping motor to drive the air deflector from the current angle to a preset reference angle comprises the following steps: and controlling the stepping motor to rotate towards the reference angle until the air deflector touches the stopping part.
Optionally, the reference angle is a limit opening angle of the air deflector.
Optionally, the step of controlling the stepping motor to drive the air deflector from the current angle to a preset reference angle includes:
acquiring a first pre-stored step number required by the stepping motor to drive the air deflector from the reference angle to the closing angle, and an opening step number operated by the stepping motor to drive the air deflector to rotate from the closing angle to the current angle when the air conditioner is started at this time;
and controlling the stepping motor to operate to the reference angle by the difference between the first step number and the opening step number.
Optionally, the control method further includes:
counting the received air conditioner shutdown instruction;
when the count is accumulated to a second preset number of times, in the shutdown process, the steps after the pre-stored first step number required by the stepping motor to drive the air deflector from the reference angle to the closing angle and the opening step number operated by the stepping motor to drive the air deflector to rotate from the closing angle to the current angle when the air conditioner is started up are: and controlling the stepping motor to rotate to the reference angle by subtracting the opening step number from the first step number and adding a preset second calibration step number.
Optionally, the rotation speed of the stepping motor toward the reference angle is less than the rotation speed toward the closing angle.
In another aspect, the present invention provides an air conditioner, including:
a shell which is provided with an air outlet;
the air deflector is rotatably arranged at the air outlet;
the stepping motor is used for controllably driving the air deflector to rotate; and
a controller comprising a processor and a memory, the memory storing a computer program for implementing the control method of the air conditioner according to any one of the above when the computer program is executed by the processor.
Optionally, the air deflector comprises a connecting arm and an air deflector body, the connecting arm is fixed to the housing, and the air deflector body is rotatably mounted on the connecting arm; and is provided with
A blocking portion is arranged on the connecting arm and is configured to: and blocking the air deflector when the air deflector rotates to the reference angle.
In the air conditioner and the control method thereof, when the air conditioner is turned off and needs to close the air deflector, the stepping motor is controlled to drive the air deflector to a preset reference angle, and then the air deflector is rotated to a closing angle from the reference angle. Because the position of the reference angle is fixed, the first step number required from the reference angle to the closing angle is fixed, the stepping motor can just stay at the closing angle only by operating the stepping motor for the first step number towards the closing angle, and the problem that the air deflector is not closed tightly is solved.
Furthermore, in the air conditioner and the control method thereof of the present invention, considering that the stepping motor may lose step when operating for many times, when the number of times of shutdown of the air conditioner reaches the first preset number, calibration is performed once, so that the stepping motor operates in the closing direction from the reference angle by the sum of the first number of steps and the preset first calibration number of steps, so as to ensure that the air deflector can be closed in place better at this time and during subsequent shutdown.
Further, in the air conditioner and the control method thereof of the present invention, the number of steps taken when the air deflector is opened is pre-stored, and when the air conditioner is shut down, the stepping motor is controlled to operate to the reference angle by the difference between the first number of steps and the number of opened steps. And in order to avoid the step loss of the stepping motor during multiple running, when the shutdown frequency of the air conditioner is accumulated to reach a second preset frequency, the air conditioner is calibrated once, and the stepping motor is controlled to run to the reference angle by subtracting the opening step number from the first step number and adding the preset second calibration step number, so that the air deflector can be ensured to run to the reference angle correctly during the current and subsequent shutdown.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of a control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
FIG. 5 is a flow chart of a control method of a further improvement of the embodiment shown in FIG. 4;
fig. 6 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention.
Detailed Description
An air conditioner and a control method thereof according to an embodiment of the present invention will be described with reference to fig. 1 to 6. The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It should be noted that the logic and/or steps shown in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
The flowcharts provided by this embodiment are not intended to indicate that the operations of the method are to be performed in any particular order, or that all the operations of the method are included in each case. Further, the method may include additional operations. Additional variations on the above-described method are possible within the scope of the technical ideas provided by the method of this embodiment.
Fig. 1 is a schematic view of an air conditioner according to an embodiment of the present invention; fig. 2 is a schematic block diagram of an air conditioner according to an embodiment of the present invention; fig. 3 is a schematic diagram of a control method of an air conditioner according to an embodiment of the present invention.
The invention provides a control method of an air conditioner. The air conditioner of the embodiment of the invention can be a wall-mounted air conditioner, a vertical air conditioner, a window air conditioner, a courtyard machine or other various forms of air conditioners, and fig. 1 illustrates an embodiment of the wall-mounted air conditioner.
As shown in fig. 1, the air conditioner according to the embodiment of the present invention includes a housing 10 having an air outlet 12, an air deflector 50 rotatably disposed at the air outlet 12, and a stepping motor 60 for driving the air deflector 50 to rotate. The air outlet 12 is used for sending air flow generated by the air conditioner to adjust indoor air. The supply air flow can be specifically cold air flow, hot air flow, fresh air flow, purified air flow and the like. When the air conditioner is in a shutdown state, the air deflector 50 is at a closing angle to block the air outlet 12 and block external dust and impurities. After the air conditioner is started to operate, the stepping motor 60 drives the air deflector 50 to be opened so as to guide the air flow supplied from the air outlet 12 and change the direction of the air flow.
As shown in fig. 1 to 3, a control method of an air conditioner according to an embodiment of the present invention may generally include the steps of:
step S302: and receiving an air conditioner shutdown instruction.
The user accessible remote controller, control panel, wireless control terminal etc. send the shutdown instruction to the controller of air conditioner, and the controller receives the shutdown instruction after, will close the air conditioner, specifically including closing electrical components such as compressor, also including closing aviation baffle 50, namely drives aviation baffle 50 to the angle of closing.
Step S304: the stepping motor 60 is controlled to drive the air guide plate 50 from the current angle to the preset reference angle.
In this step, the reference angle is a fixed angle that is set in advance.
Step S306: the stepping motor 60 is controlled to drive the air deflector 50 from the reference angle to the closing angle, and the closing process of the air deflector 50 is completed.
In the description of the embodiment of the present invention, for the sake of simplicity, the "reference angle", "closing angle", "current angle", etc. are not only used to indicate the position of the air deflector 50, but also used to describe the corresponding state of the stepping motor 60.
When the conventional air conditioner is turned off, the air deflector is directly driven to a closing angle from a current angle by utilizing the stepping motor. After the air conditioner runs for a long time, the position of the air deflector during the opening period is changed unexpectedly due to the factors of self gravity, manual pulling of a user, step motor loss and the like. When closing, step motor is difficult to drive it to the closed position accurately, appears closing the not in place condition, influences the outward appearance of air conditioner.
In the control method of the embodiment of the present invention, when the air conditioner needs to close the air deflector 50 when the air conditioner is turned off, the stepping motor 60 is controlled to drive the air deflector 50 to a preset reference angle, and then the air deflector is rotated to the closing angle from the reference angle. Therefore, even if the position of the air deflector 50 is accidentally changed during the air conditioner turning-on period, the subsequent turning-off process is not affected, and the stepping motor 60 can more easily and accurately drive the air deflector 50 to the turning-off angle.
In some embodiments, the aforementioned reference angle can be the limit opening angle of the air deflector 50, as shown in fig. 1. That is, the air guide plate 50 rotates from the closed angle to the open direction, and cannot rotate and open continuously after rotating to the reference angle, and at this time, the opening degree of the outlet 12 is the maximum, and the air outlet is most smooth, so that the opening angle is called as the limit opening angle. The rotation direction of the air deflector 50 from the closing angle to the reference angle is defined as positive rotation, and when the air deflector 50 is at any air guiding position, the rotation direction is positive rotation toward the reference angle, which makes the control of the stepping motor 60 simpler. And the wind deflector 50 cannot rotate towards the opening direction when rotating to the reference angle (the limit opening angle), so that the wind deflector can be found more accurately and stays at the reference angle for a short time.
In some embodiments, referring to fig. 1, the air conditioner includes a stopper 521. The stopper 521 is configured to: when the air deflector 50 rotates to the reference angle, the air deflector 50 is blocked, so that the air deflector 50 cannot rotate continuously. Step S304 (step of controlling the stepping motor 60 to drive the air guide plate 50 from the current angle to the preset reference angle) includes: the step motor 60 is controlled to rotate towards the reference angle until the air deflector 50 touches the stopping portion 521. Specifically, a sensing device such as a contact sensor may be disposed to detect the contact between the air deflector 50 and the stop portion 521.
In some optional embodiments, the air conditioner may achieve a higher technical effect by further optimizing and configuring the above steps, and the following describes in detail the control method of the air conditioner of this embodiment in combination with a description of an optional execution flow of this embodiment, where this embodiment is merely an illustration of the execution flow, and in a specific implementation, an execution sequence and an operation condition of a part of steps may be modified according to specific implementation requirements.
Fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
As shown in fig. 4, in a preferred embodiment of the present invention, the control method of the air conditioner sequentially performs the following steps:
step S402: and receiving an air conditioner shutdown instruction.
Step S404: the stepping motor 60 is controlled to drive the air guide plate 50 from the current angle to the preset reference angle.
Step S406: a first pre-stored number of steps required by the stepper motor 60 to drive the air deflector 50 from the reference angle to the closed angle is obtained.
Step S408: the stepper motor 60 is controlled to operate in the closing direction in a first number of steps. The first number of steps is performed just to precisely reach the closing angle of the air deflector 50.
In this embodiment, steps S406 and S408 constitute a detailed step of the aforementioned step "controlling the stepping motor 60 to drive the air guide plate 50 from the reference angle to the closing angle".
In this embodiment, since the first number of steps required from the reference angle to the closing angle is fixed, the stepping motor 60 can be stopped at the closing angle just by operating the stepping motor for the first number of steps toward the closing angle, so that the closing control is more accurate, and the problem that the air deflector 50 is not closed tightly is solved.
Fig. 5 is a flow chart of a control method of further improvement of the embodiment shown in fig. 4.
As shown in fig. 5, in a preferred embodiment of the present invention, a control method of an air conditioner sequentially performs the following steps:
step S502: and receiving an air conditioner shutdown instruction, and counting the received air conditioner shutdown instruction, namely recording that the shutdown is the shutdown for the second time. The shutdown after the air conditioner is powered on for the first time can be recorded as the first shutdown and used as a counting starting point; or the shutdown after the first operation after the air conditioner is stopped for a long period of time (e.g., one or two months) is recorded as the first shutdown as the starting point of the count.
Step S504: the stepping motor 60 is controlled to drive the air guide plate 50 from the current angle to a preset reference angle.
Step S506: and judging whether the accumulated count reaches a first preset number of times. If yes, go to step S508; if not, go to step S512.
Step S508: a first pre-stored number of steps required by the stepper motor 60 to drive the air deflector 50 from the reference angle to the closed angle is obtained.
Step S510: the stepping motor 60 is controlled to operate in the closing direction by the sum of the first step number and a preset first calibration step number.
In this embodiment, in order to avoid step loss caused by multiple operations of the stepping motor 60, when the number of times of shutdown of the air conditioner reaches the first preset number, calibration is performed once, so that the stepping motor 60 is operated in the shutdown direction from the reference angle by the sum of the first number of steps and the preset first calibration number of steps, thereby ensuring that the air deflector 50 can be better closed in place during this and subsequent shutdown.
For example, the first preset number of times may be set as n times, and the first calibration step number may be set as a step. When the air conditioner is turned off for the nth time, the step a is added when the stepping motor 60 rotates towards the closing angle, and one-time calibration is completed. Of course, when the subsequent n +1, n +2 times to the 2n-1 time shutdown, the stepping motor 60 is still turned off according to the first step number, and when the 2n time shutdown is performed, the calibration is performed again, and so on. In summary, a calibration is performed every time the nth x N (N is a positive integer) is turned off.
The test can be carried out on air conditioners of different models, the relation between the shutdown times and the closing effect (the untight closing degree) of the air deflector 50 is confirmed, and the numerical value of the first preset times is reasonably determined. And reasonably determining a reasonable value of the first calibration step number according to the untight closing degree of the first preset times during the previous closing.
Step S512: a first pre-stored number of steps required by the stepper motor 60 to drive the air deflector 50 from the reference angle to the closed angle is obtained.
Step S514: the stepper motor 60 is controlled to operate in the closing direction in a first number of steps.
Since it is determined in step S506 that the count accumulation does not reach the first preset number of times, calibration is not necessary, and thus the stepping motor 60 is still controlled to be turned off according to the first step number.
Fig. 6 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention.
As shown in fig. 6, in some embodiments, the step of controlling the stepping motor 60 to drive the air deflector 50 from the current angle to the preset reference angle is further detailed, and specifically, the control method comprises the following steps:
step S602: and receiving an air conditioner shutdown instruction.
Step S604: the pre-stored first step number required by the stepping motor 60 to drive the air deflector 50 from the reference angle (the limit opening angle) to the closing angle is obtained, and the opening step number operated by the stepping motor 60 to drive the air deflector 50 to rotate from the closing angle to the current angle when the air conditioner is started at this time is obtained.
Step S606: the stepping motor 60 is controlled to operate to the reference angle by the difference between the first step number and the opening step number.
The number of steps required for the stepper motor 60 to drive the air deflector 50 from the closed angle to the reference angle, i.e. the extreme open angle, is equal to the first number of steps. Thus, the first number of steps minus the aforementioned number of opening steps is the number of steps required by the stepper motor 60 to drive the air deflection plate 50 from the current angle to the reference angle.
Further, the received air conditioner shutdown instruction may be counted, and when the count is accumulated to a second preset number, in the shutdown process, the steps after step S604 (i.e. the alternative step of step S606) are: the stepping motor 60 is controlled to operate to the reference angle by a first number of steps minus the number of opening steps plus a preset second calibration number of steps.
In this embodiment, to avoid step loss due to multiple operations of the stepping motor 60, calibration is performed once when the number of times of shutdown of the air conditioner is accumulated to a second preset number. For example, the second preset number of times may be set to m times, and the second calibration step number may be set to b steps. When the air conditioner is turned off for the mth time, b steps are added when the stepping motor 60 rotates towards the reference angle, and one-time calibration is completed. Of course, calibration is not performed until the subsequent shutdown for the m +1 th time and the m +2 th time to the 2m-1 th time, and calibration is performed again until the shutdown for the 2m th time, and so on. In summary, each time the nth × m (N is a positive integer) is turned off, a calibration is performed.
The air conditioners of different models can be tested to confirm the relationship between the shutdown frequency and the closing effect (the air deflector 50 cannot accurately reach the reference angle) of the air deflector, so as to reasonably determine the numerical value of the second preset frequency. And determining a reasonable numerical value of the second calibration step number according to the inaccuracy degree of the second preset time during the previous closing.
In some embodiments, the wind deflector 50 touches the stop portion when rotating to the reference angle, so that the rotation speed is slightly lower to reduce noise. The rotation speed n1 of the stepping motor 60 toward the reference angle may be made smaller than the rotation speed n2 toward the closing angle, for example, 0.3. Ltoreq. N1/n 2. Ltoreq.0.4, so that the noise is reduced to accelerate the closing speed.
Another aspect of the present invention provides an air conditioner.
As shown in fig. 1 and 2, an air conditioner according to an embodiment of the present invention may generally include a case 10, an air guide plate 50, a stepping motor 60, and a controller 800.
The casing 10 is provided with an air outlet 12, and the air outlet 12 is used for sending air supply airflow produced by an air conditioner, specifically, the air supply airflow can be cold air airflow, hot air airflow, fresh air airflow, purified air airflow and the like, so as to adjust indoor air. The air conditioner can form a vapor compression refrigeration cycle system by an evaporator, a condenser, a compressor, a throttling device and other necessary elements so as to output cold air/hot air through a fan and realize refrigeration and heating of indoor environment. For example, for a wall-mounted type air conditioner, it includes an indoor unit and an outdoor unit respectively located indoors and outdoors. The shell is a shell of the indoor unit, and an evaporator and a fan are arranged in the shell. The condenser, the compressor and other necessary components are components of the outdoor unit.
The air deflector 50 is rotatably installed at the outlet 12. When the air conditioner is in a shutdown state, the air deflector 50 is at a closing angle to block the air outlet 12 and block external dust and impurities. After the air conditioner is started to operate, the stepping motor 60 drives the air deflector 50 to be opened so as to guide the air flow supplied from the air outlet 12 and change the direction of the air flow. The stepping motor 60 is used for controllably driving the air deflector 50 to rotate. The stepper motor 60 may be mounted within the housing 10.
The controller 800 includes a processor 810 and a memory 820, the memory 820 stores a computer program 821, and the computer program 821 is used to implement the control method of the air conditioner according to any embodiment of the present invention when the computer program 821 is executed by the processor 810.
The processor 810 in this embodiment may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory 820 is used to store programs executed by the processor 810. The memory 820 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 820 may also be a combination of various memories 820. Since the computer program 821, when executed by the processor 810, implements the processes of the above method embodiments and can achieve the same technical effects, the details are not described herein for avoiding repetition.
In some embodiments, the deflector 50 comprises a connecting arm 52 and a deflector body 51, the connecting arm 52 being fixed to the housing 10, the deflector body 51 being rotatably mounted to the connecting arm 52. The connecting arm 52 is provided with a blocking portion 521 configured to: the wind deflector 50 is blocked when the wind deflector 50 is rotated to the reference angle.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of an air conditioner comprises a shell with an air outlet, an air deflector rotatably arranged at the air outlet and a stepping motor used for driving the air deflector to rotate, and comprises the following steps:
receiving an air conditioner shutdown instruction;
controlling the stepping motor to drive the air deflector to a preset reference angle from a current angle;
and controlling the stepping motor to drive the air deflector from the reference angle to a closing angle.
2. The control method of claim 1, wherein the step of controlling the stepper motor to drive the air deflector from the reference angle to the closed angle comprises:
acquiring a first prestored step number required by the stepping motor to drive the air deflector from the reference angle to the closing angle;
and controlling the stepping motor to operate in the closing direction by the first step number.
3. The control method according to claim 2, further comprising:
counting the received air conditioner shutdown instruction;
when the counting is accumulated to reach a first preset number of times and the air conditioner is shut down, the step after the pre-stored closing step number required for driving the air deflector from the reference angle to the closing angle by the stepping motor is acquired is as follows: and controlling the stepping motor to rotate towards the closing direction by the sum of the first step number and a preset first calibration step number.
4. The control method according to claim 1, wherein
The air conditioner includes a stopper configured to: blocking the air deflector when the air deflector rotates to the reference angle; and is
The step of controlling the stepping motor to drive the air deflector from the current angle to a preset reference angle comprises the following steps: and controlling the stepping motor to rotate towards the reference angle until the air deflector touches the stopping part.
5. The control method according to claim 1, wherein
The reference angle is the limit opening angle of the air deflector.
6. The control method as claimed in claim 5, wherein the step of controlling the stepping motor to drive the air guide plate from the current angle to a preset reference angle comprises:
acquiring a first prestored step number required by the stepping motor to drive the air deflector from the reference angle to the closing angle, and an opening step number operated by the stepping motor to drive the air deflector to rotate from the closing angle to the current angle when the air conditioner is started at this time;
and controlling the stepping motor to operate to the reference angle by the difference between the first step number and the opening step number.
7. The control method according to claim 6, further comprising:
counting the received air conditioner shutdown instruction;
when the count is accumulated to reach a second preset number of times, in the shutdown process, the steps after acquiring the pre-stored first step number required by the stepping motor to drive the air deflector from the reference angle to the closing angle and the opening step number operated by the stepping motor to drive the air deflector to rotate from the closing angle to the current angle when the air conditioner is started at this time are as follows: and controlling the stepping motor to rotate to the reference angle by the first step number, the opening step number and a preset second calibration step number.
8. The control method according to claim 1, wherein
The rotational speed of the stepping motor rotating toward the reference angle is less than the rotational speed rotating toward the closing angle.
9. An air conditioner, comprising:
a shell which is provided with an air outlet;
the air deflector is rotatably arranged at the air outlet;
the stepping motor is used for controllably driving the air deflector to rotate; and
a controller comprising a processor and a memory, the memory storing a computer program for implementing the control method of the air conditioner according to any one of claims 1 to 8 when the computer program is executed by the processor.
10. The air conditioner according to claim 9, wherein
The air deflector comprises a connecting arm and an air deflector body, the connecting arm is fixed on the shell, and the air deflector body is rotatably arranged on the connecting arm; and is provided with
A blocking portion is arranged on the connecting arm and is configured to: and blocking the air deflector when the air deflector rotates to the reference angle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284818.1A CN115875835A (en) | 2022-10-17 | 2022-10-17 | Air conditioner and control method thereof |
| PCT/CN2023/109190 WO2024082752A1 (en) | 2022-10-17 | 2023-07-25 | Air conditioner and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284818.1A CN115875835A (en) | 2022-10-17 | 2022-10-17 | Air conditioner and control method thereof |
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| CN115875835A true CN115875835A (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211284818.1A Pending CN115875835A (en) | 2022-10-17 | 2022-10-17 | Air conditioner and control method thereof |
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| WO (1) | WO2024082752A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082752A1 (en) * | 2022-10-17 | 2024-04-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method therefor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783219B (en) * | 2016-01-06 | 2019-08-27 | 广东美的制冷设备有限公司 | Exhaust apparatus and its control method, the air conditioner indoor unit of air conditioner indoor unit |
| CN107062513B (en) * | 2016-10-20 | 2019-10-25 | 广东美的暖通设备有限公司 | The method for controlling stepping motor and air conditioner of air conditioner |
| JP6869109B2 (en) * | 2017-05-31 | 2021-05-12 | ダイキン インダストリーズ （タイランド） リミテッドＤａｉｋｉｎ Ｉｎｄｕｓｔｒｉｅｓ （Ｔｈａｉｌａｎｄ） Ｌｔｄ． | Air conditioner |
| CN107655168B (en) * | 2017-09-28 | 2020-11-20 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof, and computer-readable storage medium |
| CN109612056B (en) * | 2018-12-19 | 2021-06-11 | 创维空调科技(安徽)有限公司 | Air deflector control method and device and computer readable storage medium |
| JP7252480B2 (en) * | 2021-01-29 | 2023-04-05 | ダイキン工業株式会社 | blower |
| CN112944574B (en) * | 2021-03-09 | 2022-04-08 | 珠海格力电器股份有限公司 | Control method and control device of air conditioner and air conditioning system |
| CN115875835A (en) * | 2022-10-17 | 2023-03-31 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
-
2022
- 2022-10-17 CN CN202211284818.1A patent/CN115875835A/en active Pending
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2023
- 2023-07-25 WO PCT/CN2023/109190 patent/WO2024082752A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082752A1 (en) * | 2022-10-17 | 2024-04-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method therefor |
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| WO2024082752A1 (en) | 2024-04-25 |
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