CN104061649B - Air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device - Google Patents
Air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device Download PDFInfo
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- CN104061649B CN104061649B CN201310086944.0A CN201310086944A CN104061649B CN 104061649 B CN104061649 B CN 104061649B CN 201310086944 A CN201310086944 A CN 201310086944A CN 104061649 B CN104061649 B CN 104061649B
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Abstract
The present invention is applicable to home wiring control field, provide a kind of air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device, described method includes: according to moment, the speed of service and lifting travel that overhead door is required in lifting process, preset motor is starting, is running and stop the control parameter in these three stage, and described control parameter includes motor drive mode, single bat pulse frequency and required pulse number；Obtain the control mode of overhead door, including rising or declining；Call according to described control mode and control parameter accordingly, control overhead door in each stage correspondence output motor control command and rise or fall.In technical solution of the present invention, can be by reset control parameter flexible motor output torque and rotating speed, overhead door is operated steadily, effectively improve startup, run and stop noise, on the other hand, step motor control precision is high, can save limit switch auxiliary detection part, save cost.
Description
Technical field
The invention belongs to home wiring control field, particularly relate to a kind of air-conditioner overhead door control method, microprocessor and
Air-conditioner overhead door device.
Background technology
Conventional air conditioner overhead door uses synchronous machine drives, realizes electricity by Control synchronous motor energising sequential
Machine rotating, coupling photoswitch is to realize spacing and position judgment detection simultaneously, completes to control overhead door lifting action, such as
One Chinese patent (Patent No. CN101413708B) discloses a kind of slide door control device and method, needs limit switch auxiliary
Help detection sliding door run location, and guarantee that sliding door completely closes and opens by setting multiple setting aside some time.
Existing air-conditioner overhead door device have employed synchronous motor, and output torque is the most all constant, transports in reality
During row, owing to overhead door is different in the moment started, operation is required with in stop phase, particularly starting and stopping rank
During section, required torque ratio is relatively big, so makes that overhead door work is unstable, operating noise is big.Particularly, defeated when synchronous motor
Enter voltage relatively low time, output torque be not enough to control overhead door action, owing to synchronous motor output torque is unadjustable, thus lead
Cause the overhead door when low-voltage possibly cannot be operating normally.Furthermore, existing air-conditioner overhead door device also uses limit switch
Auxiliary detection overhead door run location, due to the position signalling section of sentencing precision difference so that the fluctuation of the overhead door speed of service is big, operating
Unstable, and the time of running be difficult to control, be further exacerbated by overhead door at the noise started and during stop phase.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of air-conditioner overhead door control method, microprocessor with
And air-conditioner overhead door device, it is intended to solve the startup of existing conventional air conditioner lowering or hoisting gear and operation noise is big, run injustice
Surely, the speed of service and moment is unadjustable, cost is high, easily by the technical problem of electromagnetic interference.
On the one hand, in the present invention, the raising and lowering of the overhead door of air-conditioner is all divided into startup, runs and stops three rank
Section, described overhead door is by step motor drive, and described air-conditioner overhead door control method includes:
According to moment, the speed of service and lifting travel that overhead door is required in lifting process, preset motor exists
Starting, run and stop the control parameter in these three stage, described control parameter includes motor drive mode, single bat pulse frequency
And required pulse number；
Obtain the control mode of overhead door, including rising or declining；
Call according to described control mode and control parameter accordingly, control in each stage correspondence output motor control command
Overhead door rises or falls.
On the other hand, described microprocessor includes:
Control preset parameter unit, for moment, the speed of service and the liter required in lifting process according to overhead door
Fall stroke, preset motor is starting, is running and stop the control parameter in these three stage, and described control parameter includes motor
Type of drive, single bat pulse frequency and required pulse number；
Control mode acquiring unit, for obtaining the control mode of overhead door, including rising or declining；
Control command performance element, controls parameter, in each stage pair accordingly for calling according to described control mode
Answer output motor control command to control overhead door to rise or fall.
Finally, described air-conditioner overhead door device includes:
Tooth bar that motor, the gear being installed on step motor shaft are meshed with described gear, for positioning tooth bar
Guide rail, by rack support the overhead door that is in transmission connection therewith, described motor be sequentially connected with motor drive ic and
Described microprocessor.
In technical solution of the present invention, instead of existing synchronous motor with motor, first according to overhead door in lifting
Moment, the speed of service and lifting travel needed for during, pre-sets motor and is starting, running and stop these three
The control parameter in stage, including motor drive mode, single bat pulse frequency and required pulse number etc., wherein motor driving side
Formula and single pulse frequency of clapping determine motor output torque and rotating speed, therefore can be by reset control parameter flexible
Motor output torque and rotating speed so that overhead door operates steadily, effectively improve startup, run and stop noise, and
Owing to motor turns over a step angle, relative to synchronous motor, step motor control precision not receiving a pulse
Height, has stronger anti-outside electromagnetic interference ability, therefore can save limit switch auxiliary in conventional air conditioner overhead door device
Detection part, has saved cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of the air-conditioner overhead door control method that first embodiment of the invention provides；
Fig. 2 is that motor four phase double four claps the moment with two kinds of type of drive of four phase eight beat-mono-bat pulse frequency relation
Curve chart；
Fig. 3 is that a kind of rising of air-conditioner overhead door controls rule schematic diagram；
Fig. 4 is that a kind of decline of air-conditioner overhead door controls rule schematic diagram；
Fig. 5 is the block diagram of a kind of microprocessor that second embodiment of the invention provides；
Fig. 6 is the structure chart of a kind of air-conditioner overhead door device that third embodiment of the invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Embodiment one:
Fig. 1 shows the flow process of the air-conditioner overhead door control method that first embodiment of the invention provides, for the ease of saying
Bright, illustrate only the part relevant to the embodiment of the present invention.As shown in the figure:
The air-conditioner overhead door control method that the present embodiment provides includes:
Step S101, according to overhead door moment, the speed of service and lifting travel required in lifting process, preset step
Entering motor and starting, running and stop the control parameter in these three stage, described control parameter includes motor drive mode, single bat
Pulse frequency and required pulse number.
This step is mainly accomplished that the process of reset control parameter, described control parameter include motor drive mode, list
Clap pulse frequency and required pulse number etc., when motor is selected, by arranging different motor drive modes and list
Clapping pulse frequency and just may decide that rotating speed and the output torque of motor, overhead door is divided into startup at lifting process, runs and stop
The these three stage, generally start and stop phase needs that full moment is sufficiently large, the slow-speed of revolution, smooth running, the requirement of low noise,
Need to meet that moment is relatively big, the requirement of fast speed in the operation phase, in order to realize the demand, need to arrange in lifting process
Motor drive mode corresponding to different phase and single clap pulse frequency, the present embodiment does not limit each stage concrete motor and drives
Mode and single bat pulse frequency, as long as meet overhead door required moment, the speed of service and lifting travel in lifting process
Demand, described motor drive mode include four phases four clap, four phases double four bats, four phase eight beats etc..
As a kind of preferred implementation, in the present embodiment, when reset control parameter, motor is starting, is running
It is respectively four phase eight beat with stopping these three stage motor drive mode, four double four claps and four phase eight beats mutually.
The moment with two kinds of type of drive of four phase eight beat-mono-bat is clapped below by motor four phase shown in Fig. 2 double four
Pulse frequency relation curve is made a concrete analysis of, and figure center line X represents that moment-mono-bat pulse frequency relation that four phases double four are clapped is bent
Line, line Y represents moment-mono-bat pulse frequency relation curve of four phase eight beat.
Motor angular velocity is as follows with the relational expression of single bat pulse frequency:
Motor angular velocity=360* mono-bat pulse frequency/(speed reducing ratio * number of pole-pairs * drives umber of beats)
Umber of beats is wherein driven to clap equal to 4(tetra-phase double four) or 8(four phase eight beat), the operation speed of the i.e. motor of angular velocity
Degree, to identical motor, speed reducing ratio, number of pole-pairs are fixed values.By analysis chart 2, it has been found that motor have with
Lower characteristic:
(1) for same angular velocity, four phases double four are clapped bigger than the moment of four phase eight beat
At point 2, type of drive is that four phases double four clap driving, and single pulse frequency of clapping is f1, angular velocity W1=360*f1/(subtracts
Speed ratio * 6*4), moment is Tb；
At point 4, type of drive is that four phase eight beat drives, and single pulse frequency of clapping is f4, and angular velocity W2=360*f4/(slows down
Ratio * 6*8), moment is Tc；
When setting f4=2*f1Time, it is ensured that four phases double four are clapped and four phase eight beat two ways has same angular velocity, from figure
In can be seen that four phases double four are clapped bigger than the moment of four phase eight beat, it may be assumed that Tb > Tc.
(2) identical single bat pulse frequency, four phases double four are clapped bigger than the angular velocity of four phase eight beat, and torque is little
At point 2, type of drive is that four phases double four clap driving, and pulse frequency f1 clapped by list, and moment is Tb；
At point 1, type of drive drives for four phase eight beat, and single bat pulse frequency f1, moment is Ta；
It is seen that during identical single bat pulse frequency f1, the moment that four phases double four are clapped is less than the moment of four phase eight beat,
I.e. Tb ＜ Ta, understands double four bats of four phases according further to motor angular velocity and single relational expression clapping pulse frequency and compares four phase eight beat
Angular velocity big.
When reset control parameter, need to combine the weight of actual loading, run noise requirements, the lifting speed of service, institute
Need the key elements such as drawing torque.If on the premise of meeting actual loading moment and speed, selected point 2 and point 4 can conform to
Asking, the present embodiment can control ginseng by the curve characteristic of Fig. 2 and above-mentioned characteristic (1), characteristic (2) optimal design-aside further
Number, specific as follows:
Owing to starting and stop phase needs sufficiently large staring torque and require smooth running, low noise, point 1 with
Point 2 is compared, and angular velocity is slow, moment is big, operating is more steady, thus selected point 1 replacement point 2, performance is more excellent, is i.e. starting and is stopping
Motor drive mode is set to four phase eight beat by the stage, and single pulse frequency of clapping is set to f1；
Owing to needing larger torque and very fast angular velocity in the operation phase, it is assumed that in Fig. 2, torque Tc is that motor is in fortune
The minimum moment that row order section needs, point 5 is compared with point 4, and moment is equal, and angular velocity is very fast, if point 5 moves right along curve, speed
Degree is accelerated, but moment reduces, it is impossible to meet torque requirement, and point 2 is compared with point 5, and moment is relatively big, but angular velocity is relatively slow, for this is
Meet in the moment of operation phase and angular velocity requirement, can be using the point 3 between selected point 2 and point 5 as the position of operation phase
Putting and a little replace a little 4, i.e. in the operation phase, motor drive mode is set to double four bats of four phases, single pulse frequency of clapping is set to
F2, according to experiment, the usual selection range of f2 is f1 < f2 < 1.8f1.
To sum up, preferably control preset parameter mode as one, in uphill process, start corresponding with stop phase
Motor drive mode is set to four phase eight beat, and single pulse frequency of clapping is set to f1, at the motor drive mode that the operation phase is corresponding
Being set to double four bats of four phases, single pulse frequency of clapping is set to f2, and f1 < f2 < 1.8f1.Determining motor drive mode and list
Clapping after pulse frequency, motor Output speed determines that, control the required pulse number in parameter then with each stage
The operation stroke of overhead door relevant, the distance that moved divided by individual pulse overhead door with the total kilometres in each stage, for
Facilitate description, required pulse number generally can be converted into pulse duration t(t=required pulse number/mono-bat pulse
Frequency).In like manner during declining, start the motor drive mode corresponding with stop phase and be set to four phase eight beat, single bat arteries and veins
Rushing frequency configuration is f1 ', is set to double four bats of four phases at the motor drive mode that the operation phase is corresponding, and single pulse frequency of clapping is arranged
For f2 ', and f1 '<f2 '<1.8f1 ', it is further used as preferably, f2 '>=f2, f1 '>=f1.
Step S102, the control mode of acquisition overhead door, including rising or declining；
Step S103, call according to described control mode and control parameter accordingly, in each stage correspondence output motor control
System order controls overhead door and rises or falls.
After the control preset parameter in each stage of overhead door device, obtain the control mode of current overhead door,
Such as rise or decline, when for rising, calling preset uphill process and control parameter accordingly, defeated in each stage correspondence
Go out motor control command and control overhead door rising；When for declining, call preset liter, decline process controls parameter accordingly,
Control overhead door in each stage correspondence output motor control command to decline.
Concrete, a kind of air-conditioner overhead door as shown in Figure 3 rises and controls rule schematic diagram.[0, the t1] time period in figure
For startup stage, type of drive is four phase eight beat, and single pulse frequency of clapping is f1；When the t1 moment, transfer the operation phase immediately to, i.e.
At [t1, t2] in the time period, type of drive is double four bats of four phases, and single pulse frequency of clapping is f2, stable operation, when the t2 moment,
Transferring stop phase immediately to, i.e. at [t2, t3] in the time period, type of drive is four phase eight beat, and when the t3 moment, overhead door stops
Run.A kind of air-conditioner overhead door as shown in Figure 4 declines and controls rule schematic diagram, and in figure, [0, the t1 ＇] time period is for starting rank
Section, type of drive is four phase eight beat, and single pulse frequency of clapping is f1 ＇, when the t1 ＇ moment, transfers the operation phase immediately to, i.e. exists
[t1 ＇, t2 ＇], in the time period, type of drive is double four bats of four phases, and single pulse frequency of clapping is f2 ＇, and stable operation, in the t2 ＇ moment
Time, transfer stop phase immediately to, i.e. at [t2 ＇, t3 ＇] in the time period, type of drive is four phase eight beat, when the t3 ＇ moment, lifting
Door is out of service.
As shown in Figure 3 and Figure 4, starting and the noise problem of stop phase to reduce overhead door device further, making
For one preferred embodiment, startup stage in, single clap pulse frequency from 0 gradually buffering increase to preset list and clap pulse frequency
Rate, in stop phase, single pulse frequency of clapping is clapped pulse frequency from preset list and is gradually buffered and reduce to 0, this avoid due to
Motor starts suddenly and cuts out the vibrations noise brought.This preferred embodiment does not limit concrete frequency buffering change side
Formula, its buffer curve can be oblique line, stepped line, camber line etc., such as it is shown on figure 3, startup stage during, single clap pulse
Frequency is increased linearly to f1 by 0, and maintains to the t1 moment, and during stop phase, single pulse frequency of clapping takes the lead in maintaining f1 mono-section
Time, the most linearly reduce, until being 0 in the t3 moment.
As one preferably can implementation, in step S101, determine according to moment and angular velocity needed for each stage
Pulse frequency clapped by the list of motor: uphill process, startup stage stably after single clap pulse frequency f1=100pps(pps, pulse
Per second), operation phase single bat pulse frequency f2=167pps, single bat pulse frequency f1=100pps after stop phase steady running；
Decline process, startup stage stably after single clap pulse frequency f1 ＇=125pps, the operation phase is single claps pulse frequency f2 ＇=200pps,
Stop phase stably after single pulse frequency f1 ＇=125pps that claps, then according to overhead door device stroke and guarantee to fully open and close
Close, determine the pulse number (being scaled the operation time) of motor, at uphill process, startup stage run time t1=2s, fortune
Row stage running time t2-t1=28s, stop phase run time t3-t2=2s, decline process, startup stage run the time
T1 ＇=2s, operation phase operation time t2 ＇-t1 ＇=22s, stop phase runs time=2s.
After preset parameter, obtain the control mode of overhead door in step s 102, it is judged that be on earth rise or under
Fall, in step s 103, when control mode is for rising, controls rule execution according to Fig. 3, with four phase eight beat within [0, the 2] second
Mode drives, and change list over time is clapped pulse frequency linear mode and is slowly increased to 100pps, and steady running, when 2 seconds
Transferring the operation phase after being carved into immediately to, clap with four phases double four and drive within [2, the 30] second, single pulse frequency of clapping is 167pps, stable
Run, after 30 second moment, transfer stop phase immediately to, drive with four-phase eight-step mode within [30, the 32] second, change over time
Changing single pulse frequency of clapping and be gradually decreased to 0, and steady running, 30 second moment, then overhead door was out of service；When control mode is
During decline, controlling rule execution according to Fig. 4, drive with four-phase eight-step mode within [0, the 2] second, arteries and veins clapped by change list over time
Rushing frequency linearity mode and be slowly increased to 125pps steady running, 2 second moment arrived, and transferred the operation phase immediately to, in [2,24]
Driving in the double four bat modes of four phases in second, single pulse frequency of clapping is 200pps, stable operation, and 24 second moment arrived, and transferred to immediately and stopping
In the only stage, driving with four-phase eight-step mode within [24, the 26] second, change list over time is clapped pulse frequency and is stepped down to 0,
26 second moment, then overhead door was out of service.
Present embodiments provide a kind of air-conditioner overhead door control method, by preset motor starting, run and
Stop the control parameter in these three stage, make the output torque of motor and angular velocity adjustable, adapted to overhead door and existed
The moment of different phase and rate request, so it is achieved thereby that control overhead door stable operation, reduce noise, simultaneously stepping
Motor is high compared to synchronous motor precision, has stronger anti-outside electromagnetic interference ability, therefore can save conventional air conditioner
In overhead door device, limit switch auxiliary detection part, has saved cost.
Embodiment two:
Fig. 5 shows the structure of the microprocessor that second embodiment of the invention provides, for convenience of description, illustrate only with
The part that the embodiment of the present invention is relevant.As shown in the figure:
The microprocessor that the present embodiment provides includes:
Control preset parameter unit 501, for the moment required in lifting process according to overhead door, the speed of service and
Lifting travel, preset motor is starting, is running and stop the control parameter in these three stage, and described control parameter includes electricity
Machine type of drive, single bat pulse frequency and required pulse number；
Control mode acquiring unit 502, for obtaining the control mode of overhead door, including rising or declining；
Control command performance element 503, controls parameter, in each stage accordingly for calling according to described control mode
Corresponding output motor control command controls overhead door and rises or falls.
The functional unit 501-503 correspondence of microprocessor that the present embodiment provides achieve embodiment with in step
S101-S103, in the present embodiment, pre-sets the motor control in each stage by controlling preset parameter unit 501
Parameter, control mode acquiring unit 502 after the control mode getting current overhead door, control command performance element 503
Call according to described control mode and control parameter accordingly, control overhead door in each stage correspondence output motor control command and rise
Or decline.
Embodiment three:
Fig. 6 shows the structure of the air-conditioner overhead door device that third embodiment of the invention provides, for convenience of description, also
Illustrate only the part relevant to the embodiment of the present invention.
As shown in Figure 6, the air-conditioner overhead door device that this enforcement provides includes: motor 61, be installed on motor
Tooth bar 63 that gear 62 on axle is meshed with described gear, for positioning the guide rail 64 of tooth bar, by rack support and passing therewith
The overhead door 65 being dynamically connected, described motor 61 is sequentially connected with motor drive ic 66 and micro-place as claimed in claim
Reason device 67.In the present embodiment, preset the control parameter of motor 61 by microprocessor 67 after, control according to overhead door 65
Mode processed (rise or decline) is driven to motor drive ic 66, described motor in each stage correspondence output motor control command
Dynamic chip 66 controls motor 61 again and makes corresponding actions, thus reaches to control the purpose of overhead door 65 even running.As
One can implementation, described motor 61 be 50 series 6 to pole motor, motor 61 is at microprocessor 67 and electricity
Machine driving chip 66 drives lower motor shaft to rotate, and is engaged with tooth bar 63 by the gear 62 on motor shaft and produces transmission,
Driving overhead door 65 to move, regard it towards motor shaft, motor turns clockwise, and overhead door rises, and motor rotates counterclockwise, lifting
Door declines.Preferably, the tooth mouth on described tooth bar is positioned at tooth bar side or centre, and nibbles mutually with the gear on step motor shaft
Close.
To sum up, a kind of air-conditioner overhead door control method, microprocessor and air-conditioner overhead door are present embodiments provided
Device, in technical solution of the present invention, can be by reset control parameter flexible motor output torque and rotating speed so that
Overhead door operates steadily, and effectively improves startup, runs and stop noise, and on the other hand, step motor control precision is high, has
Stronger anti-outside electromagnetic interference ability, therefore can save limit switch auxiliary test section in conventional air conditioner overhead door device
Point, save cost.
It will appreciated by the skilled person that all or part of step realizing in above-described embodiment method is permissible
Instructing relevant hardware by program to complete, described program can be stored in a computer read/write memory medium
In, described storage medium, such as ROM/RAM, disk, CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, although with reference to aforementioned reality
Executing example and the present invention has carried out explanation in greater detail, for a person skilled in the art, it still can be to aforementioned each reality
Execute the technical scheme described in example modify or wherein portion of techniques feature is carried out equivalent.All the present invention's
Any amendment, equivalent and the improvement etc. made within spirit and principle, should be included within the scope of the present invention.
Claims (6)
1. an air-conditioner overhead door control method, the raising and lowering of described overhead door is all divided into startup, runs and stop three
The individual stage, it is characterised in that described overhead door is by step motor drive, and described control method includes:
According to moment, the speed of service and lifting travel that overhead door is required in lifting process, preset motor starting,
Run and stop the control parameter in these three stage, described control parameter include motor drive mode, single clap pulse frequency and
Required pulse number；
Obtain the control mode of overhead door, including rising or declining；
Call according to described control mode and control parameter accordingly, control lifting in each stage correspondence output motor control command
Door rises or falls；
In described preset control parameter, motor is at the motor drive mode started, run and stop in the these three stage
Be respectively four phase eight beat, four phases double four are clapped and four phase eight beat；
Motor is identical with the list of stop phase bat pulse frequency in startup, and claps pulse frequency less than the list of operation phase；
The motor list in the operation phase is clapped pulse frequency and is clapped 1.8 times of pulse frequency less than the list started with stop phase.
2. air-conditioner overhead door control method as claimed in claim 1, it is characterised in that in each stage, control mode is
Pulse frequency clapped by the list that list during decline is clapped when pulse frequency is to rise more than or equal to control mode.
3. air-conditioner overhead door control method as claimed in claim 1 or 2, it is characterised in that startup stage in, single clap arteries and veins
Rush frequency from 0 gradually buffering increase to preset list and clap pulse frequency, in stop phase, single pulse frequency of clapping is clapped from preset list
Pulse frequency gradually buffers and reduces to 0.
4. a microprocessor, it is characterised in that described microprocessor includes:
Control preset parameter unit, for the moment required in lifting process according to overhead door, the speed of service and lifting row
Journey, preset motor is starting, is running and stop the control parameter in these three stage, and described control parameter includes that motor drives
Mode, single bat pulse frequency and required pulse number；
Control mode acquiring unit, for obtaining the control mode of overhead door, including rising or declining；
Control command performance element, controls parameter accordingly for calling according to described control mode, defeated in each stage correspondence
Go out motor control command control overhead door to rise or fall；
In described preset control parameter, motor is at the motor drive mode started, run and stop in the these three stage
Be respectively four phase eight beat, four phases double four are clapped and four phase eight beat；
Motor is identical with the list of stop phase bat pulse frequency in startup, and claps pulse frequency less than the list of operation phase；
The motor list in the operation phase is clapped pulse frequency and is clapped 1.8 times of pulse frequency less than the list started with stop phase.
5. an air-conditioner overhead door device, it is characterised in that described device includes:
Motor (61)；
The gear (62) being installed on described motor (61) axle；
The tooth bar (63) being meshed with described gear (62)；
For positioning the guide rail (64) of described tooth bar (63)；
The overhead door (65) supported by described tooth bar (63) and be in transmission connection therewith；
Described motor (61) has been sequentially connected with motor drive ic (66) and microprocessor as claimed in claim 4
(67)。
6. air-conditioner overhead door device as claimed in claim 5, it is characterised in that the tooth mouth on described tooth bar (63) is positioned at tooth
Bar side or centre, and be meshed with the gear (62) on motor (61) axle.
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| CN201310086944.0A CN104061649B (en) | 2013-03-18 | 2013-03-18 | Air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device |
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| CN104913470B (en) * | 2015-05-29 | 2017-11-14 | 广东美的制冷设备有限公司 | Air cleaning facility and its air quantity control method and air quantity controller |
| CN109764484B (en) * | 2019-01-21 | 2020-07-03 | 奥克斯空调股份有限公司 | Sliding door control method and device, air conditioner and computer readable storage medium |
| CN110631244B (en) * | 2019-09-30 | 2020-12-18 | 广东美的制冷设备有限公司 | Door body control method, door body, computer storage medium and air conditioner |
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| JP2010043844A (en) * | 2008-07-18 | 2010-02-25 | Daikin Ind Ltd | Indoor unit of air conditioner |
| CN102538162A (en) * | 2011-08-04 | 2012-07-04 | 广东美的电器股份有限公司 | Door open/close structure of floor type air conditioner |
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| CN104061649A (en) | 2014-09-24 |
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