CN104061649A - 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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- CN104061649A CN104061649A CN201310086944.0A CN201310086944A CN104061649A CN 104061649 A CN104061649 A CN 104061649A CN 201310086944 A CN201310086944 A CN 201310086944A CN 104061649 A CN104061649 A CN 104061649A
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Abstract
The invention is applicable to the field of household appliance control and provides an air conditioner overhead door control method, a microprocessor and an air conditioner overhead door device. The method comprises the steps as follows: control parameters of a stepping motor at start, running and stop stages are preset according to the torque, the running speed and the lifting travel required by an overhead door during lifting, and the control parameters comprise the motor driving mode, the single pulse frequency and the required pulse number; control modes, including lifting and lowering, of the overhead door are obtained; the corresponding control parameters are called according to the control modes, and motor control commands are correspondingly output at all the stages to control the overhead door to be lifted or lowered. According to the technical scheme, the output torque and the rotating speed of the stepping motor can be adjusted flexibly through presetting of the control parameters, so that the overhead door is stable in running, and start, running and stop noises can be improved effectively; on the other hand, the stepping motor is high in control accuracy, and a limiting switch auxiliary detection part can be omitted, so that the cost is saved.
Description
Technical field
The invention belongs to household electrical appliances control field, relate in particular to a kind of air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device.
Background technology
Conventional air conditioner overhead door adopts synchronous machine drives; by Control synchronous motor energising sequential, realize motor positive and inverse; mate optoelectronic switch to realize spacing and position judgment detection simultaneously; complete and control overhead door lifting action; such as a Chinese patent (patent No. is CN101413708B) discloses a kind of slide door control device and method; need limit switch auxiliary detection sliding door run location, and a plurality ofly set aside some time to guarantee that sliding door closes completely and open by setting.
Existing air-conditioner overhead door device has adopted synchronous motor, output torque is all constant conventionally, in actual moving process, because overhead door required moment in startup, operation and stop phase is different, particularly start and during stop phase required torque ratio larger, make like this that overhead door work is steady, operating noise is large.Especially, when synchronous motor input voltage is lower, output torque is not enough to control overhead door action, because synchronous motor output torque is unadjustable, thereby causes when low-voltage the overhead door possibly cannot regular event.Moreover, existing air-conditioner overhead door device also adopts limit switch auxiliary detection overhead door run location, because the position signalling section of sentencing precision is poor, make that overhead door speed of service fluctuation is large, galloping, and running time be difficult to control, further aggravated overhead door and started and noise during stop phase.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device, the start-up and operation noise that is intended to solve existing conventional air conditioner lowering or hoisting gear is large, operation not steadily, the speed of service and moment is unadjustable, cost is high, be subject to the technical problem of electromagnetic interference.
On the one hand, in the present invention, the rising of the overhead door of air-conditioner and decline are all divided into startup, move and stop three phases, and described overhead door is driven by stepper motor, and described air-conditioner overhead door control method comprises:
According to overhead door required moment, the speed of service and lifting travel in lifting process, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping;
Obtain the control mode of overhead door, comprise and rise or decline;
According to described control mode, call corresponding control parameter, in corresponding output motor control command of each stage, control overhead door and rise or decline.
On the other hand, described microprocessor comprises:
Control preset parameter unit, be used for according to overhead door at the required moment of lifting process, the speed of service and lifting travel, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping;
Control mode acquiring unit, for obtaining the control mode of overhead door, comprises and rises or decline;
Control command performance element, for call corresponding control parameter according to described control mode, controls overhead door in corresponding output motor control command of each stage and rises or decline.
Finally, described air-conditioner overhead door device comprises:
Stepper motor, be installed on the gear on step motor shaft, the tooth bar being meshed with described gear, for locating the guide rail of tooth bar, by rack support the overhead door that is in transmission connection with it, described stepper motor is connected with motor drive ic and described microprocessor in turn.
In technical solution of the present invention, with stepper motor, replaced existing synchronous motor, first according to overhead door required moment in lifting process, the speed of service and lifting travel, setting in advance stepper motor is starting, move and stop the control parameter of this three phases, comprise motor drive mode, single pulse frequency and required pulse number etc. of clapping, wherein motor drive mode and single pulse frequency of clapping have determined stepper motor output torque and rotating speed, therefore can be by preset control parameter flexible modulation stepper motor output torque and rotating speed, overhead door is operated steadily, effectively improve and start, operation and stop noise, and because stepper motor turns over a step angle not receiving a pulse, with respect to synchronous motor, step motor control precision is high, there is stronger anti-outside electromagnetic interference ability, therefore can save limit switch auxiliary detection part in conventional air conditioner overhead door device, saved cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of the air-conditioner overhead door control method that provides of first embodiment of the invention;
Fig. 2 is stepper motor four two four moment-mono-bat pulse frequency graph of relation of clapping with two kinds of type of drive of four phase eight beat mutually;
Fig. 3 is a kind of rising control law schematic diagram of air-conditioner overhead door;
Fig. 4 is a kind of decline control law schematic diagram of air-conditioner overhead door;
Fig. 5 is the block diagram of a kind of microprocessor of providing of second embodiment of the invention;
Fig. 6 is the structure chart of a kind of air-conditioner overhead door device of providing of third embodiment of the invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
embodiment mono-:
Fig. 1 shows the flow process of the air-conditioner overhead door control method that first embodiment of the invention provides, and for convenience of explanation, only shows 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 comprises:
Step S101, according to overhead door required moment, the speed of service and lifting travel in lifting process, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping.
What this step mainly realized is the process of preset control parameter, described control parameter comprises motor drive mode, single pulse frequency and required pulse number etc. of clapping, when stepper motor is selected, by being set, different motor drive modes and single bat pulse frequency just can determine rotating speed and the output torque of motor, overhead door is divided into startup at lifting process, operation and stop this three phases, conventionally start and stop phase need to expire moment enough large, the slow-speed of revolution, smooth running, the requirement of low noise, in the operation phase, moment need to be met larger, the requirement of fast speed, in order to realize the demand, corresponding motor drive mode and the single pulse frequency of clapping of different phase in lifting process need to be set, the present embodiment does not limit concrete motor drive mode of each stage and single pulse frequency of clapping, so long as meet overhead door required moment in lifting process, the demand of the speed of service and lifting travel, described motor drive mode comprises four four bats mutually, four two four clap mutually, four phase eight beat etc.
As a kind of preferred embodiment, in the present embodiment, when preset control parameter, stepper motor is respectively four phase eight beat, four and two four claps and four phase eight beats mutually starting, move and stop this three phases motor drive mode.
Below by the stepper motor four shown in Fig. 2, two four clap with moment-mono-bat pulse frequency relation curve of two kinds of type of drive of four phase eight beat and make a concrete analysis of mutually, figure center line X represents four two four moment-mono-bat pulse frequency relation curves of clapping mutually, and line Y represents moment-mono-bat pulse frequency relation curve of four phase eight beat.
Stepper motor angular speed is as follows with the relational expression of single bat pulse frequency:
The mono-bat of stepper motor angular speed=360* pulse frequency/(speed reducing ratio * number of pole-pairs * drives umber of beats)
Wherein drive umber of beats to equal 4(tetra-two four bats mutually) or 8(four phase eight beat), angular speed is the speed of service of stepper motor, to identical stepper motor, speed reducing ratio, number of pole-pairs are fixed values.By analysis chart 2, we find that stepper motor has following characteristic:
(1) for same angular velocity, four mutually two four clap larger than the moment of four phase eight beat
At point 2 places, type of drive is four two four bat drivings mutually, and it is f that list is clapped pulse frequency
1, angular speed W1=360*f1/(speed reducing ratio * 6*4), moment is Tb;
At point 4 places, type of drive is that four phase eight beat drives, and single bat pulse frequency is f4, angular speed W2=360*f4/(speed reducing ratio * 6*8), moment is Tc;
When setting f
4=2*f
1time, can guarantee that four two four clap and two kinds of modes of four phase eight beat have same angular velocity mutually, as can be seen from the figure four two four bats are larger than the moment of four phase eight beat mutually, that is: Tb>Tc.
(2) identical single pulse frequency of clapping, four two four clap greatlyr than the angular speed of four phase eight beat mutually, and torque is little
At point 2 places, type of drive is four two four bat drivings mutually, single pulse frequency f1 that claps, and moment is Tb;
At point 1 place, type of drive is for being four phase eight beat driving, and list is clapped pulse frequency f1, and moment is Ta;
As can be seen from Figure, during identical single bat pulse frequency f1, four mutually two four moments of clapping be less than the moment of four phase eight beat, i.e. Tb < Ta, in addition according to stepper motor angular speed and single relational expression known four of clapping pulse frequency mutually two four clap larger than the angular speed of four phase eight beat.
When preset control parameter, need to be in conjunction with key elements such as the weight of actual loading, the requirement of operation noise, the lifting speed of service, required drawing torques.If meeting under the prerequisite of actual loading moment and speed, selected point 2 and point 4 can meet the requirements, and the curve characteristic that the present embodiment can be by Fig. 2 and above-mentioned characteristic (1), characteristic (2) further optimization arrange control parameter, specific as follows:
Owing to needing enough large staring torque and requiring smooth running, low noise in startup and stop phase, point 1 is compared with point 2, angular speed is slow, moment is large, running is more steady, thereby selected point 1 replaces point 2, performance is more excellent, in startup and stop phase motor drive mode, be set to four phase eight beat, single pulse frequency of clapping is set to f1;
Owing to needing larger torque and very fast angular speed in the operation phase, suppose that in Fig. 2, torque Tc is the minimum moment that stepper motor needed in the operation phase, point 5 is compared with point 4, moment equates, angular speed is very fast, if point 5 moves right along curve, speed is accelerated, but moment reduces, can not meet moment requirement, point 2 is compared with point 5, moment is larger, but angular speed is slower, for this reason in order to meet moment and the angular speed requirement in the operation phase, can selected point 2 and point 5 between point 3 as the location point of operation phase, replace a little 4, at operation phase motor drive mode, be set to four two four bats mutually, single pulse frequency of clapping is set to f2, according to experiment, the common selection range of f2 is f1<f2<1.8f1.
To sum up, as a kind of preferred control preset parameter mode, in uphill process, startup and motor drive mode corresponding to stop phase are set to four phase eight beat, single pulse frequency of clapping is set to f1, at motor drive mode corresponding to operation phase, be set to four two four bats mutually, single pulse frequency of clapping is set to f2, and f1<f2<1.8f1.Determining motor drive mode and single bat after pulse frequency, stepper motor Output speed has just been determined, control required pulse number in parameter relevant with the operation stroke of the overhead door in each stage, the distance moving divided by individual pulse overhead door with the total kilometres in each stage, for convenience of description, conventionally required pulse number can be converted into pulse duration t(t=required pulse number/mono-bat pulse frequency).In like manner in decline process, startup and motor drive mode corresponding to stop phase are set to four phase eight beat, single pulse frequency of clapping is set to f1 ', at motor drive mode corresponding to operation phase, be set to four two four bats mutually, single pulse frequency of clapping is set to f2 ', and f1 ' <f2 ' <1.8f1 ', is further used as preferred, f2 ' >=f2, f1 ' >=f1.
Step S102, obtain the control mode of overhead door, comprise and rise or decline;
Step S103, according to described control mode, call corresponding control parameter, in corresponding output motor control command of each stage, control overhead door and rise or decline.
After the control preset parameter in each stage of overhead door device, obtain the control mode of current overhead door, such as rising or declining, when for rising, call preset uphill process and control accordingly parameter, in corresponding output motor control command of each stage, control overhead door and rise; When declining, call preset liter, decline process is controlled parameter accordingly, in corresponding output motor control command of each stage, control overhead door and decline.
Concrete, a kind of air-conditioner overhead door rising control law schematic diagram as shown in Figure 3.The startup stage that in figure, [0, the t1] time period being, type of drive is four phase eight beat, and single bat pulse frequency is f1; At t1, during the moment, transfer immediately the operation phase to, at [t1, t2] in the time period, type of drive is four two four bats mutually, single bat pulse frequency is f2, stable operation, at t2, during the moment, transfer immediately stop phase to, at [t2, t3] in the time period, type of drive is four phase eight beat, and at t3, during the moment, overhead door is out of service.A kind of air-conditioner overhead door decline control law schematic diagram as shown in Figure 4, in figure [0, t1 ＇] time period, the startup stage of being, type of drive was four phase eight beat, single bat pulse frequency is f1 ＇, at t1 ＇ constantly time, transfer immediately the operation phase to, at [t1 ＇, t2 ＇] in the time period, type of drive is four two four bats mutually, single to clap pulse frequency be f2 ＇, and stable operation, at t2 ＇ constantly time, transfer immediately stop phase to, at [t2 ＇, t3 ＇] in the time period, type of drive is four phase eight beat, at t3 ＇, during the moment, overhead door is out of service.
As shown in Figure 3 and Figure 4, in order further to reduce overhead door device in the noise problem of beginning and stop phase, as preferred embodiment a kind of, startup stage in, single pulse frequency of clapping cushions gradually and increases to preset single pulse frequency of clapping from 0, in stop phase, single pulse frequency of clapping cushions and reduces to 0 gradually from preset single pulse frequency of clapping, and has avoided like this because stepper motor starts suddenly and cuts out the vibrations noise bringing.This preferred embodiment does not limit concrete frequency buffering variation pattern, its buffer curve can be oblique line, stepped line, camber line etc., such as shown in Figure 3, startup stage process in, single pulse frequency of clapping is increased to f1 by 0 linearity, and is maintained until t1 constantly, in stop phase process, single pulse frequency of clapping takes the lead in maintaining f1 a period of time, and then linearity reduces, until be 0 constantly at t3.
As a kind of preferably can implementation, in step S101, according to required moment of each stage and angular speed, determine single pulse frequency of clapping of stepper motor: uphill process, startup stage stable after single pulse frequency f1=100pps(pps that claps, pulse is per second), single pulse frequency f2=167pps that claps of operation phase, single pulse frequency f1=100pps that claps after stop phase steady running, decline process, startup stage stable after single pulse frequency f1 ＇=125pps that claps, single pulse frequency f2 ＇=200pps that claps of operation phase, single pulse frequency f1 ＇=125pps that claps after stop phase is stable, then according to overhead door device stroke and guarantee to open and close completely, determine the pulse number (being scaled running time) of stepper motor, at uphill process, startup stage running time t1=2s, running time operation phase t2-t1=28s, stop phase t3-t2=2s running time, in decline process, startup stage running time t1 ＇=2s, running time operation phase t2 ＇-t1 ＇=22s, stop phase running time=2s.
After preset parameter, in step S102, obtain the control mode of overhead door, determining the end is to rise or decline, in step S103, when control mode is rising, according to Fig. 3 control law, carry out, [0, 2] in second, in four phase eight beat mode, drive, along with the variation list of time is clapped pulse frequency linear mode and is slowly increased to 100pps, and steady running, after being carved in the time of 2 seconds, transfer immediately the operation phase to, [2, 30] in second, with four, two four clap driving mutually, single bat pulse frequency is 167pps, stable operation, after 30 seconds moment, transfer immediately stop phase to, [30, 32] in second, in four phase eight beat mode, drive, along with the variation list of time is clapped pulse frequency and is progressively reduced to 0, and steady running, 30 seconds then constantly, overhead door is out of service, when control mode is decline, according to Fig. 4 control law, carry out, [0, 2] in second, in four phase eight beat mode, drive, along with the variation list of time is clapped pulse frequency linear mode and is slowly increased to 125pps steady running, in the time of 2 seconds, be carved into, transfer immediately the operation phase to, [2, 24] second with four mutually two four bat modes drive, single bat pulse frequency is 200pps, stable operation, in the time of 24 seconds, be carved into, transfer immediately stop phase to, [24, 26] in second, in four phase eight beat mode, drive, along with the variation list of time is clapped pulse frequency and is progressively reduced to 0, 26 seconds then constantly, overhead door is out of service.
The present embodiment provides a kind of air-conditioner overhead door control method, by preset stepper motor, starting, move and stop the control parameter of this three phases, make output torque and the angular speed of stepper motor adjustable, adapted to moment and the rate request of overhead door in different phase, thereby realized like this stable operation of control overhead door, reduced noise, stepper motor is high compared to synchronous electric mechanism precision simultaneously, there is stronger anti-outside electromagnetic interference ability, therefore can save limit switch auxiliary detection part in conventional air conditioner overhead door device, saved cost.
embodiment bis-:
Fig. 5 shows the structure of the microprocessor that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.As shown in the figure:
The microprocessor that the present embodiment provides comprises:
Control preset parameter unit 501, be used for according to overhead door at the required moment of lifting process, the speed of service and lifting travel, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping;
Control mode acquiring unit 502, for obtaining the control mode of overhead door, comprises and rises or decline;
Control command performance element 503, for call corresponding control parameter according to described control mode, controls overhead door in corresponding output motor control command of each stage and rises or decline.
The functional unit 501-503 correspondence of the microprocessor that the present embodiment provides realized embodiment with in step S101-S103, in the present embodiment, by controlling preset parameter unit 501, set in advance the control parameter of stepper motor in each stage, control mode acquiring unit 502 is after getting the control mode of current overhead door, control command performance element 503 calls corresponding control parameter according to described control mode, controls overhead door rise or decline in corresponding output motor control command of each stage.
embodiment tri-:
Fig. 6 shows the structure of the air-conditioner overhead door device that third embodiment of the invention provides, and for convenience of explanation, also only shows 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 comprises: stepper motor 61, be installed on the gear 62 on step motor shaft, the tooth bar 63 being meshed with described gear, for locating the guide rail 64 of tooth bar, by rack support the overhead door 65 that is in transmission connection with it, described stepper motor 61 is connected with motor drive ic 66 and microprocessor as claimed in claim 67 in turn.In the present embodiment, by microprocessor 67, preset after the control parameter of stepper motor 61, according to overhead door 65 control modes (rise or decline) in corresponding output motor control command of each stage to motor drive ic 66, described motor drive ic 66 again control step motor 61 is made corresponding actions, thereby reaches the object of controlling overhead door 65 even runnings.As a kind of can implementation, described stepper motor 61 is 6 pairs of utmost point stepper motors of 50 series, stepper motor 61 motor shaft under microprocessor 67 and motor drive ic 66 drivings rotates, by the gear 62 on motor shaft and tooth bar 63 engagements, produce transmission, drive overhead door 65 motions, towards motor shaft, look it, motor turns clockwise, overhead door rises, and motor is rotated counterclockwise, and overhead door declines.Preferably, the tooth mouth on described tooth bar is positioned at tooth bar side or centre, and is meshed with the gear on step motor shaft.
To sum up, the present embodiment provides a kind of air-conditioner overhead door control method, microprocessor and air-conditioner overhead door device, in technical solution of the present invention, can be by preset control parameter flexible modulation stepper motor output torque and rotating speed, overhead door is operated steadily, effectively improve and start, move and stop noise, on the other hand, step motor control precision is high, there is stronger anti-outside electromagnetic interference ability, therefore can save limit switch auxiliary detection part in conventional air conditioner overhead door device, save cost.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be in being stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although the present invention has been carried out to more detailed explanation with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified or part technical characterictic is wherein equal to replacement.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. an air-conditioner overhead door control method, the rising of described overhead door and decline and be all divided into startup, move and stop three phases, is characterized in that, described overhead door is driven by stepper motor, described control method comprises:
According to overhead door required moment, the speed of service and lifting travel in lifting process, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping;
Obtain the control mode of overhead door, comprise and rise or decline;
According to described control mode, call corresponding control parameter, in corresponding output motor control command of each stage, control overhead door and rise or decline.
2. air-conditioner overhead door control method as claimed in claim 1, it is characterized in that, in described preset control parameter, stepper motor is respectively four phase eight beat, four two four bat and four phase eight beats mutually at the motor drive mode that starts, moves and stop in this three phases.
3. air-conditioner overhead door control method as claimed in claim 2, is characterized in that, in described preset control parameter, stepper motor is identical in the single pulse frequency of clapping starting with stop phase, and is less than single pulse frequency of clapping of operation phase.
4. air-conditioner overhead door control method as claimed in claim 3, is characterized in that, in described preset control parameter, stepper motor is less than single 1.8 times of clapping pulse frequency of startup and stop phase in single bat pulse frequency of operation phase.
5. air-conditioner overhead door control method as claimed in claim 4, is characterized in that, in each stage, list when single bat pulse frequency when control mode is decline is more than or equal to control mode for rising is clapped pulse frequency.
6. the air-conditioner overhead door control method as described in claim 1-5 any one, it is characterized in that, startup stage in, single clap pulse frequency from 0 gradually buffering increase to preset single pulse frequency of clapping, in stop phase, single pulse frequency of clapping cushions and reduces to 0 gradually from preset single pulse frequency of clapping.
7. a microprocessor, is characterized in that, described microprocessor comprises:
Control preset parameter unit, be used for according to overhead door at the required moment of lifting process, the speed of service and lifting travel, preset stepper motor is starting, is moving and stop the control parameter of this three phases, and described control parameter comprises motor drive mode, single pulse frequency and required pulse number of clapping;
Control mode acquiring unit, for obtaining the control mode of overhead door, comprises and rises or decline;
Control command performance element, for call corresponding control parameter according to described control mode, controls overhead door in corresponding output motor control command of each stage and rises or decline.
8. an air-conditioner overhead door device, is characterized in that, described device comprises:
Stepper motor (61);
Be installed on the gear (62) on described stepper motor (61) axle;
The tooth bar (63) being meshed with described gear (62);
Be used for locating the guide rail (64) of described tooth bar (63);
The overhead door (65) that supports and be in transmission connection with it by described tooth bar (63);
Described stepper motor (61) is connected with motor drive ic (66) and microprocessor as claimed in claim 8 (67) in turn.
9. air-conditioner overhead door device as claimed in claim 8, is characterized in that, the tooth mouth on described tooth bar (63) is positioned at tooth bar side or centre, and is meshed with the gear (62) on stepper motor (61) axle.
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| CN110631244A (en) * | 2019-09-30 | 2019-12-31 | 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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