CN104930666A - Method and device for start control of DC fan in air conditioner indoor unit - Google Patents
Method and device for start control of DC fan in air conditioner indoor unit Download PDFInfo
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- CN104930666A CN104930666A CN201510372743.6A CN201510372743A CN104930666A CN 104930666 A CN104930666 A CN 104930666A CN 201510372743 A CN201510372743 A CN 201510372743A CN 104930666 A CN104930666 A CN 104930666A
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- fan
- duty cycle
- air conditioner
- initial duty
- room unit
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F2013/247—Active noise-suppression
Abstract
The invention discloses a method and a device for start control of a DC fan in an air conditioner indoor unit. The method comprises the following steps: S1, receiving a DC fan start command; S2, according to the start command, controlling the DC fan to start in an initial duty ratio; S3, detecting feedback information of the DC fan; S4, according to the feedback information, determining whether the DC fan starts successfully; S5, and if the DC fan is determined not to start successfully, improving the initial duty ratio according to a preset rule, and executing the steps S3-S5 repeatedly, until the DC fan starts successfully. The method for start control of a DC fan in an air conditioner indoor unit can reduce start noise of the DC fan.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly the startup control method of DC fan and device in a kind of air conditioner room unit.
Background technology
At present, being the successful startup controlling DC fan in indoor apparatus of air conditioner, is a larger value usually by the duty cycle adjustment of PWM (PulseWidth Modulation, pulse width modulation) voltage when DC fan starts.But, the dutycycle of PWM voltage is larger, and the rotating speed of DC fan is also larger, starts DC fan with larger dutycycle, mean that original off-duty DC fan wants moment to start with larger rotating speed, when therefore DC fan starts, very large noise can be produced.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the startup control method proposing DC fan in a kind of air conditioner room unit, can reduce the startup noise of DC fan.
The startup control method of DC fan in the indoor set of embodiment according to a first aspect of the present invention, comprises the following steps: S1, receive DC fan enabled instruction; S2, control described DC fan according to described enabled instruction and start with initial duty cycle; S3, detect the feedback information of described DC fan; S4, judge whether described DC fan starts successfully according to described feedback information; If S5 judges that described DC fan does not start successfully, then promote described initial duty cycle according to preset rules, and repeat described step S3-S5, until described DC fan starts successfully.
According to the startup control method of DC fan in the air conditioner room unit of the embodiment of the present invention, control DC fan with less initial duty cycle to start, and when the unsuccessful startup of DC fan, promote initial duty cycle gradually by preset rules, until DC fan starts successfully.Thereby, it is possible to the startup of DC fan in Duty ratio control air conditioner room unit little as far as possible, thus start DC fan with less rotating speed, substantially reduce startup noise.
In addition, in indoor set according to the above embodiment of the present invention, the startup control method of DC fan can also have following additional technical characteristic:
According to one embodiment of present invention, describedly promote described initial duty cycle according to preset rules and specifically comprise: promote described initial duty cycle according to predetermined period with default step-length.
According to one embodiment of present invention, described predetermined period and default step-length is determined according to the performance parameter of described DC fan and the toggle speed of described DC fan.
According to one embodiment of present invention, described initial duty cycle is 14-16%.
In the air conditioner room unit of embodiment according to a second aspect of the present invention, the startup control device of DC fan, comprising: receiver module, for receiving DC fan enabled instruction; Control module, starts with initial duty cycle for controlling described DC fan according to described enabled instruction; Detection module, for detecting the feedback information of described DC fan; According to described feedback information, judge module, for judging whether described DC fan starts successfully; Hoisting module, if for judging that described DC fan does not start successfully, then promote described initial duty cycle according to preset rules, until described DC fan starts successfully.
According to the startup control device of DC fan in the indoor set of the embodiment of the present invention, control DC fan with less initial duty cycle to start, and when the unsuccessful startup of DC fan, promote initial duty cycle gradually by preset rules, until DC fan starts successfully.Thereby, it is possible to the startup of DC fan in Duty ratio control air conditioner room unit little as far as possible, thus start DC fan with less rotating speed, substantially reduce startup noise.
In addition, in indoor set according to the above embodiment of the present invention, the startup control device of DC fan can also have following additional technical characteristic:
According to one embodiment of present invention, described hoisting module specifically for: promote described initial duty cycle according to predetermined period with default step-length.
According to one embodiment of present invention, described predetermined period and default step-length is determined according to the performance parameter of described DC fan and the toggle speed of described DC fan.
According to one embodiment of present invention, described initial duty cycle is 14-16%.
Accompanying drawing explanation
Fig. 1 is the flow chart of the startup control method of DC fan in air conditioner room unit according to an embodiment of the invention;
Fig. 2 be according to an embodiment of the invention step-length on the schematic diagram of the impact that DC fan starts;
Fig. 3 be according to an embodiment of the invention the cycle on the schematic diagram of the impact that DC fan starts;
Fig. 4 is the structured flowchart of the startup control device of DC fan in air conditioner room unit according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Fig. 1 is the flow chart of the startup control method of DC fan in air conditioner room unit according to an embodiment of the invention.
As shown in Figure 1, the startup control method of DC fan in the air conditioner room unit of the embodiment of the present invention, comprises the following steps:
S1, the enabled instruction of reception DC fan.
S2, according to enabled instruction control DC fan start with initial duty cycle.
In one embodiment of the invention, blower fan is started by control PWM voltage.In one embodiment of the invention, less dutycycle can be selected as the initial duty cycle of PWM voltage, such as, initial duty cycle can be decided to be 14-16%.
In addition, in one embodiment of the invention, also can by the ordinary course of things, the minimum duty cycle of the PWM voltage that DC fan can be made successfully to start is as initial duty cycle.Wherein, initial duty cycle is relevant with the performance of DC fan, and for the DC fan of different model, because performance is different, namely starting resistor and load etc. are different, so can start minimum duty cycle and the initial duty cycle difference of the PWM voltage of DC fan.In various embodiments, for the DC fan of different model, the initial duty cycle controlling the PWM voltage that it starts obtains by experiment.
The feedback information of S3, detection DC fan.
In one embodiment of the invention, ruuning situation can be fed back by DC fan in real time, such as, can feed back the information such as rotating speed.
S4, judge whether DC fan starts successfully according to feedback information.
For example, can judge whether to start successfully, if the rotating speed of DC fan is 0 according to the rotary speed information of DC fan feedback, then judge that DC fan does not start successfully, otherwise judge that DC fan starts successfully, DC fan normally can run according to relevant control then.
If S5 judges that DC fan does not start successfully, then promote initial duty cycle according to preset rules, and repeated execution of steps S3-S5, until DC fan starts successfully.
In one embodiment of the invention, selected initial duty cycle may not reach the numerical value that blower fan is successfully started, and the minimum duty cycle that the DC fan of a certain model can be made successfully to start obtained by experiment, may be not enough to DC fan is successfully started along with factors such as the changes of the wearing and tearing of DC fan or environment.Therefore, when DC fan does not start successful, initial duty cycle should be promoted.In one embodiment of the invention, initial duty cycle can be promoted according to predetermined period with default step-length, such as, every 1s, initial duty cycle can be improved 2%.Often promote an initial duty cycle, according to the information of DC fan Real-time Feedback, capital judges whether it starts successfully, if DC fan does not start successfully, then continue to promote initial duty cycle in next cycle with default fixed step size, until DC fan starts successfully, DC fan normally can run according to relevant control then.
In one embodiment of the invention, predetermined period and default step-length can affect the actual duty cycle of fan starting and start consuming time.Particularly, by according to predetermined period respectively with step-length b1, b2, bn and respectively according to cycle t1, t2, tn promotes initial duty cycle with default step-length and verifies the actual duty cycle that the size of predetermined period and default step-length starts DC fan and startup concrete impact consuming time, wherein, step-length b1>b2> ... >bn, cycle t1<t2< ... <tn, n are positive integer.For example, Fig. 2 is when promoting initial duty cycle according to predetermined period with step-length b1-b4, the actual duty cycle that step-length and DC fan start and start relation schematic diagram consuming time, wherein step-length b1>b2>>b3Great T.GreaT.GTb4, start T1<T2<T3<T4 consuming time, as shown in Figure 2, when the cycle is fixed, step-length is larger, the actual duty cycle that DC fan starts is larger, and it is consuming time shorter that DC fan starts.Fig. 3 is when promoting initial duty cycle according to cycle t1-t4 with default step-length, the actual duty cycle that cycle and DC fan start and start relation schematic diagram consuming time, wherein cycle t1<t2<t3<t4, starts P1<P2<P3<P4 consuming time.As shown in Figure 3, when step-length is fixed, the size in cycle does not almost affect the actual duty cycle that DC fan starts, and comparatively large on the impact consuming time of DC fan startup, and the cycle is larger, and it is consuming time longer that DC fan starts.Therefore, can according to the toggle speed determination predetermined period of the performance parameter of DC fan and DC fan and default step-length.
According to the startup control method of DC fan in the air conditioner room unit of the embodiment of the present invention, control DC fan with less initial duty cycle to start, and when the unsuccessful startup of DC fan, promote initial duty cycle gradually by preset rules, until DC fan starts successfully.Thereby, it is possible to the startup of DC fan in Duty ratio control air conditioner room unit little as far as possible, thus start DC fan with less rotating speed, substantially reduce startup noise.
For realize above-described embodiment air conditioner room unit in the startup control method of DC fan, the present invention also proposes the startup control device of DC fan in a kind of air conditioner room unit.
Fig. 4 is the structured flowchart of the startup control device of DC fan in air conditioner room unit according to an embodiment of the invention.
As shown in Figure 4, the startup control device of DC fan in the air conditioner room unit of the embodiment of the present invention, comprising: receiver module 10, control module 20, detection module 30, judge module 40 and hoisting module 50.
Wherein, receiver module 10 is for receiving DC fan enabled instruction.
Control module 20 starts with initial duty cycle for controlling DC fan according to enabled instruction.
In one embodiment of the invention, control module 20 starts blower fan by control PWM voltage.In one embodiment of the invention, less dutycycle can be selected as the initial duty cycle of PWM voltage, such as, initial duty cycle can be decided to be 14-16%.
In addition, in one embodiment of the invention, also can by the ordinary course of things, the minimum duty cycle of the PWM voltage that DC fan can be made successfully to start is as initial duty cycle.Wherein, initial duty cycle is relevant with the performance of DC fan, and for the DC fan of different model, because performance is different, namely starting resistor and load etc. are different, so can start minimum duty cycle and the initial duty cycle difference of the PWM voltage of DC fan.In various embodiments, for the DC fan of different model, the initial duty cycle controlling the PWM voltage that it starts obtains by experiment.
Detection module 30 is for detecting the feedback information of DC fan.
In one embodiment of the invention, ruuning situation can be fed back by DC fan in real time, such as, can feed back the information such as rotating speed.
Judge module 40 is for judging according to feedback information whether DC fan starts successfully.
For example, judge module 40 can judge whether to start successfully, if the rotating speed of DC fan is 0 according to the rotary speed information of DC fan feedback, then judge that DC fan does not start successfully, otherwise judge that DC fan starts successfully, DC fan normally can run according to relevant control then.
If hoisting module 50 is for judging that DC fan does not start successfully, then promote initial duty cycle, until DC fan starts successfully according to preset rules.
In one embodiment of the invention, selected initial duty cycle may not reach the numerical value that blower fan is successfully started, and the minimum duty cycle that the DC fan of a certain model can be made successfully to start obtained by experiment, may be not enough to DC fan is successfully started along with factors such as the changes of the wearing and tearing of DC fan or environment.Therefore, when DC fan does not start successful, initial duty cycle should be promoted by hoisting module 50.In one embodiment of the invention, initial duty cycle can be promoted according to predetermined period with default step-length, such as, every 1s, initial duty cycle can be improved 2%.Often promote an initial duty cycle, the feedback information that judge module 40 all can detect according to detection module 30 judges whether DC fan starts successfully, if DC fan does not start successfully, then continue to promote initial duty cycle in next cycle with default fixed step size, until DC fan starts successfully, DC fan normally can run according to relevant control then.
In one embodiment of the invention, predetermined period and default step-length can affect the actual duty cycle of fan starting and start consuming time.Particularly, by according to predetermined period respectively with step-length b1, b2, bn and respectively according to cycle t1, t2, tn promotes initial duty cycle with default step-length and verifies the actual duty cycle that the size of predetermined period and default step-length starts DC fan and startup concrete impact consuming time, wherein, step-length b1>b2> ... >bn, cycle t1<t2< ... <tn, n are positive integer.For example, Fig. 2 is when promoting initial duty cycle according to predetermined period with step-length b1-b4, the actual duty cycle that step-length and DC fan start and start relation schematic diagram consuming time, wherein step-length b1>b2>>b3Great T.GreaT.GTb4, start T1<T2<T3<T4 consuming time, as shown in Figure 2, when the cycle is fixed, step-length is larger, the actual duty cycle that DC fan starts is larger, and it is consuming time shorter that DC fan starts.Fig. 3 is when promoting initial duty cycle according to cycle t1-t4 with default step-length, the actual duty cycle that cycle and DC fan start and start relation schematic diagram consuming time, wherein cycle t1<t2<t3<t4, starts P1<P2<P3<P4 consuming time.As shown in Figure 3, when step-length is fixed, the size in cycle does not almost affect the actual duty cycle that DC fan starts, and comparatively large on the impact consuming time of DC fan startup, and the cycle is larger, and it is consuming time longer that DC fan starts.Therefore, can according to the toggle speed determination predetermined period of the performance parameter of DC fan and DC fan and default step-length.。
According to the startup control device of DC fan in the air conditioner room unit of the embodiment of the present invention, control DC fan with less initial duty cycle to start, and when the unsuccessful startup of DC fan, promote initial duty cycle gradually by preset rules, until DC fan starts successfully.Thereby, it is possible to the startup of DC fan in Duty ratio control air conditioner room unit little as far as possible, thus start DC fan with less rotating speed, substantially reduce startup noise.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (8)
1. the startup control method of DC fan in air conditioner room unit, is characterized in that, comprise the following steps:
S1, the enabled instruction of reception DC fan;
S2, control described DC fan according to described enabled instruction and start with initial duty cycle;
S3, detect the feedback information of described DC fan;
S4, judge whether described DC fan starts successfully according to described feedback information;
If S5 judges that described DC fan does not start successfully, then promote described initial duty cycle according to preset rules, and repeat described step S3-S5, until described DC fan starts successfully.
2. the startup control method of DC fan in air conditioner room unit as claimed in claim 1, is characterized in that, describedly promotes described initial duty cycle according to preset rules and specifically comprises:
Described initial duty cycle is promoted with default step-length according to predetermined period.
3. the startup control method of DC fan in air conditioner room unit as claimed in claim 1, is characterized in that, determine described predetermined period and default step-length according to the performance parameter of described DC fan and the toggle speed of described DC fan.
4. the startup control method of DC fan in air conditioner room unit as claimed in claim 1, it is characterized in that, described initial duty cycle is 14-16%.
5. the startup control device of DC fan in air conditioner room unit, is characterized in that, comprising:
Receiver module, for receiving DC fan enabled instruction;
Control module, starts with initial duty cycle for controlling described DC fan according to described enabled instruction;
Detection module, for detecting the feedback information of described DC fan;
According to described feedback information, judge module, for judging whether described DC fan starts successfully;
Hoisting module, if for judging that described DC fan does not start successfully, then promote described initial duty cycle according to preset rules, until described DC fan starts successfully.
6. the startup control device of DC fan in air conditioner room unit as claimed in claim 5, is characterized in that, described hoisting module specifically for:
Described initial duty cycle is promoted with default step-length according to predetermined period.
7. the startup control device of DC fan in air conditioner room unit as claimed in claim 5, is characterized in that,
Described predetermined period and default step-length is determined according to the performance parameter of described DC fan and the toggle speed of described DC fan.
8. the startup control device of DC fan in air conditioner room unit as claimed in claim 5, it is characterized in that, described initial duty cycle is 14-16%.
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| CN201510372743.6A CN104930666B (en) | 2015-06-29 | 2015-06-29 | The startup control method and device of DC fan in air conditioner room unit |
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| CN201510372743.6A CN104930666B (en) | 2015-06-29 | 2015-06-29 | The startup control method and device of DC fan in air conditioner room unit |
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| CN106765974A (en) * | 2017-01-03 | 2017-05-31 | 青岛海信日立空调系统有限公司 | A kind of DC fan control method and device, air-conditioner |
| CN109185207A (en) * | 2018-08-13 | 2019-01-11 | 深圳市正德智控股份有限公司 | The starting method and its control unit of heavy duty negative-pressure air fan |
| CN109489207A (en) * | 2018-11-19 | 2019-03-19 | 奥克斯空调股份有限公司 | A kind of electric motor starting control method, device and air conditioner |
| CN113187753A (en) * | 2021-04-28 | 2021-07-30 | 广州彩熠灯光股份有限公司 | Fan control device and lamp |
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| CN109489207B (en) * | 2018-11-19 | 2019-10-11 | 奥克斯空调股份有限公司 | A kind of electric motor starting control method, device and air conditioner |
| CN113187753A (en) * | 2021-04-28 | 2021-07-30 | 广州彩熠灯光股份有限公司 | Fan control device and lamp |
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| CN104930666B (en) | 2018-02-06 |
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