CN105402864A - Air capacity control method and air capacity control device of air conditioner, and air conditioner - Google Patents
Air capacity control method and air capacity control device of air conditioner, and air conditioner Download PDFInfo
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- CN105402864A CN105402864A CN201511029311.1A CN201511029311A CN105402864A CN 105402864 A CN105402864 A CN 105402864A CN 201511029311 A CN201511029311 A CN 201511029311A CN 105402864 A CN105402864 A CN 105402864A
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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
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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
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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
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/62—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air capacity control method and an air capacity control device of an air conditioner, and the air conditioner. The air capacity control method of the air conditioner comprises the steps of controlling the blower motor of the air conditioner to run at a preset rotation speed; detecting the current working current of the blower motor; judging whether the current working current of the blower motor is larger than or equal to a predetermined current value corresponding the preset rotation speed or not; on the premise that the current working current of the blower motor is smaller than the predetermined current value corresponding the preset rotation speed, gradually changing the rotation speed of the blower motor till the current working current of the blower motor is larger than or equal to the predetermined current value corresponding the current rotation speed; on the premise that the current working current of the blower motor is smaller than the predetermined current value corresponding the current rotation speed, determining the current actual static pressure of the air conditioner according to the current rotation speed and the current working current of the blower motor; determining a target rotation speed corresponding to the current actual static pressure according to the current actual static pressure of the air conditioner and controlling the air conditioner to run at the target rotation speed. In this way, the air volume of the air conditioner is controlled within a predetermined range.
Description
Technical field
The present invention relates to air-conditioner technical field, in particular to air quantity controller and a kind of air-conditioner of a kind of air quantity control method of air-conditioner, a kind of air-conditioner.
Background technology
Air pipe type air-conditioner is mainly used in building engineering field, because the difference of installation environment, the duct length installed differs greatly usually, namely there is the requirement of different static pressure.If static pressure is widely different, and air supply motor rotating speed can not make corresponding adjustment, then can cause air outlet air quantity off-design air quantity, affect room comfortableness.In addition, air-cooled ducted air conditioner arranges several air outlet usually, if wherein part air port is closed, also can cause the change of Integral static pressure, if air supply motor rotating speed can not adjust automatically according to load, can cause air outlet air quantity off-design value equally.Traditional air-cooled ducted air conditioner arranges several static pressure dial-ups, rotating speeds corresponding different respectively, after air-cooled ducted air conditioner installation, corresponding static pressure dial-up is adjusted to according to duct length by installation personnel, this method to some extent solves the impact that brings of duct length difference, but its control accuracy poor, cannot self-adaptative adjustment be accomplished, once after static pressure dial-up fixes, air supply motor rotating speed also can be fixed, and cannot take into account the situation that part air port is closed.
For the problems referred to above, propose in correlation technique and to run a default rotating speed when first start, and then the electric current detecting air supply motor realizes the control of permanent wind amount, this method can better realize permanent Boiler pressure control, but the static pressure scope of air pipe type air-conditioner is usually all very wide, when static pressure scope is wider, a preset rotation speed cannot take into account the collection of current of electric at all.If preset rotation speed is less than normal, then can meet static pressure lower time current of electric collection, but when static pressure is higher, can cause that the current of electric that collects is irregular to follow, when static pressure is large especially, even not collect current of electric; When preset rotation speed is bigger than normal, can meet static pressure higher time current of electric collection, but when static pressure is less, motor overload protection can be there is, cannot the problem of testing of electric motors electric current.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is the Boiler pressure control scheme proposing a kind of new air-conditioner, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all automatically can be kept to operate, improve the comfort level in room.
Another object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of air quantity control method of air-conditioner, comprising: when receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed; Detect the current working current of described air supply motor, and judge whether the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with described preset rotation speed;
When judging that the current working current of described air supply motor is more than or equal to the predetermined power value corresponding with described preset rotation speed, determine according to described preset rotation speed and described current working current the actual static pressure that described air-conditioner is current;
When judging that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor; When the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current;
The actual static pressure current according to described air-conditioner determines the rotating speed of target corresponding with described current actual static pressure; Control described air supply motor to run with described rotating speed of target, so that the air output of described air-conditioner is maintained in preset range.
The air quantity control method of air-conditioner according to an embodiment of the invention, due to when the rotating speed of air supply motor is fixed, along with the increase of static pressure, the operating current of air supply motor can reduce gradually, when static pressure increases to a certain degree, the Changing Pattern that the operating current of air supply motor shows with static pressure change can be destroyed, and operating current also likely can be caused to gather inaccurate and cannot meet actual requirement.Therefore, when air supply motor runs with preset rotation speed, if the current working current of air supply motor is less than the predetermined current value corresponding with preset rotation speed, then can by changing the rotating speed of air supply motor, the predetermined current value corresponding with the current rotating speed of air supply motor is more than or equal to make the current working current of air supply motor, and then can guarantee that the actual static pressure determined according to current rotating speed and the current working current of air supply motor has higher precision, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all can be automatically kept to operate, improve the comfort level in room.
The air quantity control method of air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed;
Before controlling the step that the air supply motor of described air-conditioner runs with preset rotation speed, also comprise: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed;
Progressively change the step of the rotating speed of described air supply motor, specifically comprise: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
Wherein, preferably, when receiving the instruction starting air-conditioner, the air supply motor that can control air-conditioner runs with the minimum speed of pre-stored.
According to one embodiment of present invention; also comprise: when controlling described air supply motor and running with described preset rotation speed; if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
In this embodiment; if air-conditioner preset rotation speed of choosing when starting is excessive and cause air-conditioner to occur stoppage protection; a less rotating speed then can be selected again to start air-conditioner as preset rotation speed; until the preset rotation speed chosen can not cause air-conditioner to occur stoppage protection, avoid and choose larger preset rotation speed when air-conditioner starts and cause air-conditioner enter stoppage protection state and cannot start.
According to one embodiment of present invention, the step of the actual static pressure that described air-conditioner is current is determined according to the current rotating speed of described air supply motor and current working current, specifically comprise: according to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
Wherein, the relation of operating current and static pressure can be determined in the following manner: when air supply motor runs with described current rotating speed, detect the operating current of air supply motor in multiple different static pressure under each hydrostatic pressure condition, and then matching is carried out to the operating current of air supply motor under each hydrostatic pressure condition of multiple different static pressure and detection, to obtain the relation curve of electric current and static pressure, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, the actual static pressure current according to described air-conditioner determines the step of the rotating speed of target corresponding with described current actual static pressure, specifically comprise: the actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determine described rotating speed of target.
Wherein, static pressure can be determined in the following manner from the relation of rotating speed: under each hydrostatic pressure condition in multiple different static pressure, regulate the rotating speed of air supply motor, predetermined air output is maintained to make the air output of air-conditioner under each hydrostatic pressure condition, and then matching is carried out to the rotating speed of the air supply motor regulated under multiple different static pressure and each hydrostatic pressure condition, to obtain the relation curve of static pressure and rotating speed, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, progressively change the step of the rotating speed of described air supply motor, specifically comprise: the rotating speed progressively increasing described air supply motor.
Embodiment according to a second aspect of the present invention, also proposed a kind of air quantity controller of air-conditioner, comprising: the first control unit, and for when receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed; Current detecting unit, for detecting the current working current of described air supply motor; Judging unit, for judging whether the current working current of the described air supply motor that described current detecting unit detects is more than or equal to the predetermined current value corresponding with described preset rotation speed; Second control unit, for when described judging unit judges that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until described current detecting unit detects that the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor; First determining unit, during for judging that the current working current of described air supply motor is more than or equal to the predetermined power value corresponding with described preset rotation speed at described judging unit, the actual static pressure that described air-conditioner is current is determined according to described preset rotation speed and described current working current, or during for being more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor in the current working current of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current; Second determining unit, determines the rotating speed of target corresponding with described current actual static pressure for the actual static pressure current according to described air-conditioner; Described first control unit also for, control described air supply motor and run with described rotating speed of target, so that the air output of described air-conditioner is maintained in preset range.
The air quantity controller of air-conditioner according to an embodiment of the invention, due to when the rotating speed of air supply motor is fixed, along with the increase of static pressure, the operating current of air supply motor can reduce gradually, when static pressure increases to a certain degree, the Changing Pattern that the operating current of air supply motor shows with static pressure change can be destroyed, and operating current also likely can be caused to gather inaccurate and cannot meet actual requirement.Therefore, when air supply motor runs with preset rotation speed, if the current working current of air supply motor is less than the predetermined current value corresponding with preset rotation speed, then can by changing the rotating speed of air supply motor, the predetermined current value corresponding with the current rotating speed of air supply motor is more than or equal to make the current working current of air supply motor, and then can guarantee that the actual static pressure determined according to current rotating speed and the current working current of air supply motor has higher precision, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all can be automatically kept to operate, improve the comfort level in room.
The air quantity controller of air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: memory cell, for the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed; Described first control unit also for: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed; Described second control unit progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
Wherein, preferably, when receiving the instruction starting air-conditioner, the air supply motor that can control air-conditioner runs with the minimum speed of pre-stored.
According to one embodiment of present invention; described first control unit also for: when controlling described air supply motor and running with described preset rotation speed; if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
In this embodiment; if air-conditioner preset rotation speed of choosing when starting is excessive and cause air-conditioner to occur stoppage protection; a less rotating speed then can be selected again to start air-conditioner as preset rotation speed; until the preset rotation speed chosen can not cause air-conditioner to occur stoppage protection, avoid and choose larger preset rotation speed when air-conditioner starts and cause air-conditioner enter stoppage protection state and cannot start.
According to one embodiment of present invention, described first determining unit specifically for: according to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
Wherein, the relation of operating current and static pressure can be determined in the following manner: when air supply motor runs with described current rotating speed, detect the operating current of air supply motor in multiple different static pressure under each hydrostatic pressure condition, and then matching is carried out to the operating current of air supply motor under each hydrostatic pressure condition of multiple different static pressure and detection, to obtain the relation curve of electric current and static pressure, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, described second determining unit is specifically for the actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determines described rotating speed of target.
Wherein, static pressure can be determined in the following manner from the relation of rotating speed: under each hydrostatic pressure condition in multiple different static pressure, regulate the rotating speed of air supply motor, predetermined air output is maintained to make the air output of air-conditioner under each hydrostatic pressure condition, and then matching is carried out to the rotating speed of the air supply motor regulated under multiple different static pressure and each hydrostatic pressure condition, to obtain the relation curve of static pressure and rotating speed, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, described second control unit progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: the rotating speed progressively increasing described air supply motor.
Embodiment according to a third aspect of the present invention, also proposed a kind of air-conditioner, comprising: the air quantity controller of the air-conditioner according to any one of above-described embodiment.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic flow diagram of the air quantity control method of air-conditioner according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of the air quantity controller of air-conditioner according to an embodiment of the invention;
Fig. 3 shows the schematic block diagram of the air quantity control system of air-conditioner according to an embodiment of the invention;
Fig. 4 shows the schematic flow diagram of the air quantity control method of air-conditioner according to another embodiment of the invention;
Fig. 5 shows according to an embodiment of the invention when the rotating speed of air supply motor is R1, the relation schematic diagram of the static pressure of air-conditioner and the operating current of air supply motor.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of the air quantity control method of air-conditioner according to an embodiment of the invention.
As shown in Figure 1, the air quantity control method of air-conditioner according to an embodiment of the invention, comprising:
Step 102, when receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed;
Step 104, detects the current working current of described air supply motor, and judges whether the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with described preset rotation speed;
Step 106, when judging that the current working current of described air supply motor is more than or equal to the predetermined power value corresponding with described preset rotation speed, determines according to described preset rotation speed and described current working current the actual static pressure that described air-conditioner is current;
Step 108, when judging that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor;
Step 110, when the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current;
Step 112, the actual static pressure current according to described air-conditioner determines the rotating speed of target corresponding with described current actual static pressure;
Step 114, controls described air supply motor and runs with described rotating speed of target, to be maintained in preset range by the air output of described air-conditioner.
Due to when the rotating speed of air supply motor is fixed, along with the increase of static pressure, the operating current of air supply motor can reduce gradually, when static pressure increases to a certain degree, the Changing Pattern that the operating current of air supply motor shows with static pressure change can be destroyed, and operating current also likely can be caused to gather inaccurate and cannot meet actual requirement.Therefore, when air supply motor runs with preset rotation speed, if the current working current of air supply motor is less than the predetermined current value corresponding with preset rotation speed, then can by changing the rotating speed of air supply motor, the predetermined current value corresponding with the current rotating speed of air supply motor is more than or equal to make the current working current of air supply motor, and then can guarantee that the actual static pressure determined according to current rotating speed and the current working current of air supply motor has higher precision, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all can be automatically kept to operate, improve the comfort level in room.
The air quantity control method of air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed;
Before controlling the step that the air supply motor of described air-conditioner runs with preset rotation speed, also comprise: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed;
Progressively change the step of the rotating speed of described air supply motor, specifically comprise: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
Wherein, preferably, when receiving the instruction starting air-conditioner, the air supply motor that can control air-conditioner runs with the minimum speed of pre-stored.
According to one embodiment of present invention; also comprise: when controlling described air supply motor and running with described preset rotation speed; if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
In this embodiment; if air-conditioner preset rotation speed of choosing when starting is excessive and cause air-conditioner to occur stoppage protection; a less rotating speed then can be selected again to start air-conditioner as preset rotation speed; until the preset rotation speed chosen can not cause air-conditioner to occur stoppage protection, avoid and choose larger preset rotation speed when air-conditioner starts and cause air-conditioner enter stoppage protection state and cannot start.
According to one embodiment of present invention, the step of the actual static pressure that described air-conditioner is current is determined according to the current rotating speed of described air supply motor and current working current, specifically comprise: according to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
Wherein, the relation of operating current and static pressure can be determined in the following manner: when air supply motor runs with described current rotating speed, detect the operating current of air supply motor in multiple different static pressure under each hydrostatic pressure condition, and then matching is carried out to the operating current of air supply motor under each hydrostatic pressure condition of multiple different static pressure and detection, to obtain the relation curve of electric current and static pressure, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, the actual static pressure current according to described air-conditioner determines the step of the rotating speed of target corresponding with described current actual static pressure, specifically comprise: the actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determine described rotating speed of target.
Wherein, static pressure can be determined in the following manner from the relation of rotating speed: under each hydrostatic pressure condition in multiple different static pressure, regulate the rotating speed of air supply motor, predetermined air output is maintained to make the air output of air-conditioner under each hydrostatic pressure condition, and then matching is carried out to the rotating speed of the air supply motor regulated under multiple different static pressure and each hydrostatic pressure condition, to obtain the relation curve of static pressure and rotating speed, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, progressively change the step of the rotating speed of described air supply motor, specifically comprise: the rotating speed progressively increasing described air supply motor.
Fig. 2 shows the schematic block diagram of the air quantity controller of air-conditioner according to an embodiment of the invention.
As shown in Figure 2, the air quantity controller 200 of air-conditioner according to an embodiment of the invention, comprising: the first control unit 202, current detecting unit 204, judging unit 206, second control unit 208, first determining unit 210 and the second determining unit 212.
Wherein, the first control unit 202, for when receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed; Current detecting unit 204, for detecting the current working current of described air supply motor; Judging unit 206, for judging whether the current working current of the described air supply motor that described current detecting unit 204 detects is more than or equal to the predetermined current value corresponding with described preset rotation speed; Second control unit 208, for when described judging unit 206 judges that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until described current detecting unit 204 detects that the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor; First determining unit 210, for when described judging unit 206 judges that the current working current of described air supply motor is more than or equal to the predetermined power value corresponding with described preset rotation speed, the actual static pressure that described air-conditioner is current is determined according to described preset rotation speed and described current working current, or during for being more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor in the current working current of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current; Second determining unit 212, determines the rotating speed of target corresponding with described current actual static pressure for the actual static pressure current according to described air-conditioner; Described first control unit 202 also for, control described air supply motor and run with described rotating speed of target, so that the air output of described air-conditioner is maintained in preset range.
Due to when the rotating speed of air supply motor is fixed, along with the increase of static pressure, the operating current of air supply motor can reduce gradually, when static pressure increases to a certain degree, the Changing Pattern that the operating current of air supply motor shows with static pressure change can be destroyed, and operating current also likely can be caused to gather inaccurate and cannot meet actual requirement.Therefore, when air supply motor runs with preset rotation speed, if the current working current of air supply motor is less than the predetermined current value corresponding with preset rotation speed, then can by changing the rotating speed of air supply motor, the predetermined current value corresponding with the current rotating speed of air supply motor is more than or equal to make the current working current of air supply motor, and then can guarantee that the actual static pressure determined according to current rotating speed and the current working current of air supply motor has higher precision, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all can be automatically kept to operate, improve the comfort level in room.
The air quantity controller 200 of air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: memory cell 214, for the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed; Described first control unit 202 also for: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed; Described second control unit 208 progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
Wherein, preferably, when receiving the instruction starting air-conditioner, the air supply motor that can control air-conditioner runs with the minimum speed of pre-stored.
According to one embodiment of present invention; described first control unit 202 also for: when controlling described air supply motor and running with described preset rotation speed; if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
In this embodiment; if air-conditioner preset rotation speed of choosing when starting is excessive and cause air-conditioner to occur stoppage protection; a less rotating speed then can be selected again to start air-conditioner as preset rotation speed; until the preset rotation speed chosen can not cause air-conditioner to occur stoppage protection, avoid and choose larger preset rotation speed when air-conditioner starts and cause air-conditioner enter stoppage protection state and cannot start.
According to one embodiment of present invention, described first determining unit 210 specifically for: according to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
Wherein, the relation of operating current and static pressure can be determined in the following manner: when air supply motor runs with described current rotating speed, detect the operating current of air supply motor in multiple different static pressure under each hydrostatic pressure condition, and then matching is carried out to the operating current of air supply motor under each hydrostatic pressure condition of multiple different static pressure and detection, to obtain the relation curve of electric current and static pressure, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, described second determining unit 212 is specifically for the actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determines described rotating speed of target.
Wherein, static pressure can be determined in the following manner from the relation of rotating speed: under each hydrostatic pressure condition in multiple different static pressure, regulate the rotating speed of air supply motor, predetermined air output is maintained to make the air output of air-conditioner under each hydrostatic pressure condition, and then matching is carried out to the rotating speed of the air supply motor regulated under multiple different static pressure and each hydrostatic pressure condition, to obtain the relation curve of static pressure and rotating speed, or directly obtain corresponding corresponding lists.
According to one embodiment of present invention, described second control unit 208 progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: the rotating speed progressively increasing described air supply motor.
The invention allows for a kind of air-conditioner (not shown), comprising: the air quantity controller 200 of air-conditioner as shown in Figure 2.
In sum, object of the present invention mainly accurately cannot realize the technical problem of permanent wind amount output according to static pressure change in order to solve air pipe type air-conditioner, proposing can by arranging more than 2 or 2 preset rotation speed, realizes also accurately to realize the technical scheme of permanent Boiler pressure control when static pressure is wider.For ease of setting forth, below in conjunction with Fig. 3 to Fig. 5, set forth technical scheme of the present invention for 2 preset rotation speed:
Fig. 3 shows the schematic block diagram of the air quantity control system of air-conditioner according to an embodiment of the invention.
As shown in Figure 3, the air quantity control system 300 of air-conditioner according to an embodiment of the invention, comprising: current acquisition module 302, memory module 304 and central processing unit 306.
Wherein, current acquisition module 302 is for gathering the operating current of the air supply motor of air pipe type air-conditioner; Memory module 304 realizes operating current-static pressure curve equation corresponding to preset rotation speed, each preset rotation speed or form, the storage of comparing current values, rotating speed-static pressure curve equation or form; Central processing unit 306 realizes the overall control to whole system, calls formula in memory module or form, data compare and calculate, send running speed signal etc. to air supply motor.
Concrete control flow as shown in Figure 4, comprising:
Step 402: air-conditioner receives start run signal.
Step 404: first the air supply motor of air-conditioner runs with the first preset rotation speed R1 preset.
Step 406: the current working current L1 detecting air supply motor.
Step 408: contrasted with the electric current L1 ' that compares preset in memory module by the current working current L1 of the air supply motor detected, if L1 >=L1 ', then performs step 410; If L1<L1 ', then perform step 412.
Step 410, substitutes into the operating current-static pressure relation curve formula under the first good preset rotation speed of matching in memory module or form by L1, obtain the actual static pressure A that air-conditioner is current.
Step 412: the air supply motor of air-conditioner runs with the second preset rotation speed R2 preset.
Step 414: the current working current L2 detecting air supply motor, is greater than at this hypothesis L2 the comparison electric current L2 ' preset in memory module.
Step 416: L2 is substituted into the operating current-static pressure relation curve formula under the second good preset rotation speed of matching in memory module or form, obtains the actual static pressure A that air-conditioner is current.
Step 418: actual static pressure A current for air-conditioner is substituted into the rotating speed-static pressure relation curve formula or form that in memory module, matching is good, the motor speed B be maintained required for permanent wind amount.
Step 420: air supply motor runs with rotating speed B.
Specifically, air pipe type air-conditioner receive start run signal time, air supply motor first in M minute with memory module in preset first preset rotation speed R1 run, the span of M is 1 minute ~ 10 minutes, and preferably, the value of M is 3 ~ 5 minutes.
Further, current detection module detects the consumption operating current L1 of air supply motor automatically; Central processing unit calls this consumption operating current L1 and compares with the electric current L1 ' that compares preset in memory module, if L1 >=L1 ', then this operating current is substituted into the electric current-static pressure relation curve formula under the first preset rotation speed that in memory module, matching is good or form, obtain current actual static pressure; If L1<L1 ', central processing unit sends instruction to air supply motor and runs with the second preset rotation speed R2 preset in memory module.
Further, the span that air supply motor runs N minute, N with R2 rotating speed is 1 minute ~ 10 minutes, and preferably, the value of N is 3 ~ 5 minutes.
Further, current detection module detects the consumption operating current L2 of air supply motor automatically, owing to being described to preset two tachometer values in this embodiment, therefore when this hypothesis is run with the second preset rotation speed R2 when air supply motor, the consumption operating current L2 of air supply motor is more than or equal to the comparison electric current L2 ' preset in memory module.Central processing unit calls this consumption operating current L2 and operating current-static pressure relation curve formula under L2 being substituted into the second preset rotation speed that in memory module, matching is good or form, obtains current actual static pressure.
Further, this static pressure is substituted into the rotating speed-static pressure relation curve formula or form preset in memory module by central processing unit, calculates and keeps required air supply motor rotating speed corresponding to permanent wind amount, controls air supply motor afterwards and runs with this rotating speed.
Wherein, in the step 402 shown in Fig. 4, receive start run signal, completed by the button on remote controller key, line control machine button or air-conditioner control panel.
Step 404 is specially central processing unit and sends instruction to air pipe type air-conditioner air supply motor, with the first preset rotation speed R1 running preset in memory module.
Step 406 is specially current detection module and detects the current consumption operating current L1 of air pipe type air-conditioner air supply motor.Testing electric current will carry out after air supply motor runs M minute with R1, and object guarantees that air supply motor is stable, and the span of M is 1 minute ~ 10 minutes, and preferably, the value of M is 3 ~ 5 minutes.
Step 408 and step 410 are specially and are contrasted with the electric current L1 ' that compares preset in memory module by the air pipe type air-conditioner air supply motor operating current L1 detected, if L1 >=L1 ', this operating current is substituted into the electric current-static pressure relation curve formula under the first preset rotation speed that in memory module, matching is good or form, obtain current actual static pressure; Wherein, relatively electric current L1 ' is the numerical value stored in advance in a storage module, when air supply motor runs R1, along with the increase of static pressure, motor working current reduces gradually, when static pressure large to a certain extent time, the Changing Pattern that motor working current shows with static pressure change can be destroyed, or operating current gathers inaccurate and cannot meet actual requirement, therefore arranges and compares this parameter of electric current L1 ', be used for judging whether to need to change preset rotation speed.
Wherein, operating current under first preset rotation speed-static pressure relation curve formula or form, be when air supply motor runs the first preset rotation speed R1 preset in memory module, obtained by the corresponding data matching of some groups of static pressure and operating current or directly list draws.Step 408 calls the testing result of operating current detection module by central processing unit and carries out operating current and compare, and calls the electric current-static pressure relation curve formula in memory module or form, by calculating current actual static pressure simultaneously.Such as, as R1=1200rpm, found through experiments static pressure and operating current exists corresponding relation as shown in table 1:
| Rotating speed R1 (rpm) | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 |
| Static pressure (Pa) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 |
| Operating current (A) | 2.8 | 2.71 | 2.57 | 2.44 | 2.31 | 2.18 | 2.07 | 1.93 | 1.78 | 1.64 | 1.3 | 0.82 |
Table 1
According to the data shown in table 1, matching obtains the curve shown in Fig. 5.Suppose comparison electric current the L1 '=1.6A when storing in memory module, when air supply motor runs with preset rotation speed 1200rpm, the motor working current L1=2.35A detected, the relatively known L1 >=L1 ' of size of L1 and L1 ', therefore operating current-static pressure corresponding relation when can adopt the first preset rotation speed R1 is to calculate current static pressure.By the known current static pressure of table 1 between 30Pa ~ 40Pa, can select nearby principle, namely L1 is near 2.31A, thinks that current static pressure is 40PA, also can between 30Pa ~ 40Pa select linear interpolation method, show that current static pressure is 36.92Pa.More accurate way is by data in above table, by data fitting, and operating current-static pressure relation curve when obtaining preset rotation speed R1, preferred least square method carries out matching, such as, obtain following formula according to the data fitting shown in table 1:
y＝-77.031x+217.8；
Wherein, x is the operating current of air supply motor, and y is static pressure.The operating current of the air supply motor detected is substituted into above-mentioned formula, and can directly calculate current static pressure, computational accuracy is higher.
Embodiments of the invention are not limited to this, such as can according to arranging 5 ~ 100 static pressures divided equally or do not divide equally between the maximum static pressure of air pipe type air-conditioner and 0 static pressure, and obtaining 5 ~ 100 groups of electric currents-static pressure corresponding relation by above-mentioned experiment method, formation is similar to the parameter form of table 1 and then draws corresponding fitting formula.
Can find from table 1 and Fig. 5, when static pressure is between 0 ~ 90Pa, there is good Changing Pattern in data; When static pressure is at more than 100Pa, operating current obviously changes with the Changing Pattern of static pressure; When static pressure has been difficult to accurately measure working current value after 110Pa, therefore need to improve the rotating speed of air supply motor, with job search electric current again with the Changing Pattern of static pressure, thus judged current static pressure.
Step 412 shown in Fig. 4 is specially central processing unit and sends instruction to air pipe type air-conditioner air supply motor, and with the second preset rotation speed R2 running preset in memory module, wherein R2 numerical value is greater than R1.
Step 414 is specially operating current detection module and detects the current consumption operating current L2 of air pipe type air-conditioner air supply motor.Testing electric current will carry out after air supply motor runs N minute with R2, and object guarantees that motor is stable, and the span of N is 1 minute ~ 10 minutes, and preferably, the value of N is 3 ~ 5 minutes.
Step 416 is specially and the air pipe type air-conditioner air supply motor operating current L2 that detects is substituted into electric current-static pressure relation curve formula under the second preset rotation speed that in memory module, matching is good or form, obtains current actual static pressure.Such as, as R2=1450rpm, found through experiments static pressure and operating current exists corresponding relation as shown in table 2:
| Rotating speed R2 (rpm) | 1450 | 1450 | 1450 | 1450 | 1450 |
| Static pressure (Pa) | 100 | 110 | 120 | 130 | 140 |
| Operating current (A) | 3.13 | 3.00 | 2.86 | 2.71 | 2.58 |
Table 2
Such as, when air supply motor runs with preset rotation speed 1450rpm, the motor working current detected is 2.9A, by the known current static pressure of table 2 between 110Pa ~ 120Pa, can select nearby principle, namely L2 is near 2.86A, thinks that current static pressure is 120Pa, also can between 110Pa ~ 120Pa select linear interpolation method, show that current static pressure is 117.1Pa.More accurate way is according to the data in table 2, by data fitting, and electric current-static pressure relation curve when obtaining preset rotation speed R2, preferred least square method carries out matching, such as, obtain following formula according to the data fitting in table 2:
y＝-71.902x+325.4；
Wherein, x is air supply motor operating current, and y is static pressure.Then the air supply motor operating current detected is substituted into this formula and can directly calculate current static pressure, precision is higher.
Embodiments of the invention are not limited to this, such as can according to arranging 5 ~ 100 static pressures divided equally or do not divide equally between the maximum static pressure of air pipe type air-conditioner and 0 static pressure, and obtaining 5 ~ 100 groups of electric currents-static pressure corresponding relation by above-mentioned experiment method, formation is similar to the parameter form of table 2 and then draws corresponding fitting formula.
Step 418 shown in Fig. 4 is specially and actual static pressure A current for the air-conditioner obtained is substituted into the rotating speed-static pressure relation curve formula or form that in memory module, matching is in advance good, calculates the rotating speed in order to keep required for constant wind quantity.
Wherein, rotating speed-static pressure relation curve formula is under in maintenance, air quantity is the prerequisite of design air flow, is obtained or directly list draws by the corresponding data matching of some groups of static pressure and rotating speed.For high wind shelves, certain air duct type air conditioning indoor machine, high wind shelves design air flow is 2000 cubes ms/h, and found through experiments under different static pressure, the rotating speed realized corresponding to this air quantity is as shown in table 3:
| Static pressure (Pa) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 |
| Rotating speed (rpm) | 840 | 890 | 940 | 990 | 1040 | 1080 | 1130 | 1170 | 1210 | 1250 | 1290 | 1330 | 1370 | 1410 | 1440 |
Table 3
Such as, when the static pressure calculated is 94Pa, can nearby principle be selected, namely near 90Pa, select rotating speed corresponding to 90Pa and 1250rpm to run, also can between 90Pa and 100Pa select linear interpolation method, draw and need to run with 1266rpm.More accurate way is according to the data shown in table 3, and by data fitting, obtain rotating speed-static pressure relation curve formula during high wind shelves, preferred least square method carries out matching, such as, obtain following formula according to the data fitting shown in table 3:
y＝4.2857x+859；
Wherein x is static pressure, and y is air supply motor tachometer value.The static pressure calculated is substituted into the air supply motor rotating speed that this formula directly can calculate needs, precision is higher.
Step 420 shown in Fig. 4 is specially central processing unit and sends instruction, and the rotating speed that air pipe type air-conditioner air supply motor is calculated with step 418 runs, until receive stopping signal.After performing this instruction, about can guaranteeing that the air quantity of air pipe type air-conditioner under current static pressure remains on design air flow.
Those skilled in the art, it is to be appreciated that the above embodiment of the present invention has set forth the control program of air-conditioner being carried out to permanent wind amount for 2 preset rotation speed, for more than 2 preset rotation speed, is equally applicable to the technical scheme of above-described embodiment.Namely when air supply motor runs with rotating speed R1, when the operating current L1 of air supply motor is less than the comparison electric current L1 ' stored in memory module, the rotating speed of air supply motor is adjusted to R2, now, if the operating current L2 of air supply motor is less than the comparison electric current L2 ' stored in memory module, then the rotating speed of air supply motor is adjusted to R3, and continue the operating current L3 of air supply motor to compare with the electric current L3 ' that compares corresponding to rotating speed R3 stored in memory module, and repeat above-mentioned steps, until when air supply motor runs with rotating speed Rn, its operating current Ln is more than or equal to when comparing electric current Ln ', Ln is substituted into the electric current-static pressure relation curve formula under the good rotating speed Rn of matching in memory module or form, obtain the actual static pressure A of air-conditioner, then actual static pressure A is substituted into the rotating speed-static pressure relation curve formula or form that in memory module, matching is good, the motor speed B be maintained required for permanent wind amount, and then control air supply motor runs with rotating speed B.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of Boiler pressure control scheme of new air-conditioner, achieve the accurate control to air-conditioner permanent wind amount within the scope of wider static pressure, guarantee that air pipe type air-conditioner is when installing the airduct of different length, permanent wind amount all automatically can be kept to operate, improve the comfort level in room.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. an air quantity control method for air-conditioner, is characterized in that, comprising:
When receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed;
Detect the current working current of described air supply motor, and judge whether the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with described preset rotation speed; If so, then determine according to described preset rotation speed and described current working current the actual static pressure that described air-conditioner is current;
When judging that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor;
When the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current;
The actual static pressure current according to described air-conditioner determines the rotating speed of target corresponding with described current actual static pressure;
Control described air supply motor to run with described rotating speed of target, so that the air output of described air-conditioner is maintained in preset range.
2. the air quantity control method of air-conditioner according to claim 1, is characterized in that, also comprises: the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed;
Before controlling the step that the air supply motor of described air-conditioner runs with preset rotation speed, also comprise: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed;
Progressively change the step of the rotating speed of described air supply motor, specifically comprise: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
3. the air quantity control method of air-conditioner according to claim 2, is characterized in that, also comprises:
When controlling described air supply motor and running with described preset rotation speed, if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
4. the air quantity control method of air-conditioner according to claim 1, is characterized in that, determines the step of the actual static pressure that described air-conditioner is current, specifically comprise according to the current rotating speed of described air supply motor and current working current:
According to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
5. the air quantity control method of air-conditioner according to claim 1, is characterized in that, the actual static pressure current according to described air-conditioner determines the step of the rotating speed of target corresponding with described current actual static pressure, specifically comprises:
The actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determine described rotating speed of target.
6. the air quantity control method of air-conditioner according to any one of claim 1 to 5, is characterized in that, progressively changes the step of the rotating speed of described air supply motor, specifically comprises:
Progressively increase the rotating speed of described air supply motor.
7. an air quantity controller for air-conditioner, is characterized in that, comprising:
First control unit, for when receiving the instruction starting air-conditioner, the air supply motor controlling described air-conditioner runs with preset rotation speed;
Current detecting unit, for detecting the current working current of described air supply motor;
Judging unit, for judging whether the current working current of the described air supply motor that described current detecting unit detects is more than or equal to the predetermined current value corresponding with described preset rotation speed;
Second control unit, for when described judging unit judges that the current working current of described air supply motor is less than the predetermined current value corresponding with described preset rotation speed, progressively change the rotating speed of described air supply motor, until described current detecting unit detects that the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor;
First determining unit, for when described judging unit judges that the current working current of described air supply motor is more than or equal to the predetermined current value corresponding with described preset rotation speed, the actual static pressure that described air-conditioner is current is determined according to described preset rotation speed and described current working current, or
During for being more than or equal to the predetermined current value corresponding with the current rotating speed of described air supply motor in the current working current of described air supply motor, determine according to the current rotating speed of described air supply motor and current working current the actual static pressure that described air-conditioner is current;
Second determining unit, determines the rotating speed of target corresponding with described current actual static pressure for the actual static pressure current according to described air-conditioner;
Described first control unit also for, control described air supply motor and run with described rotating speed of target, so that the air output of described air-conditioner is maintained in preset range.
8. the air quantity controller of air-conditioner according to claim 7, is characterized in that, also comprises:
Memory cell, for the multiple rotating speed of pre-stored, and the predetermined current value corresponding with each rotating speed;
Described first control unit also for: choose arbitrary rotating speed in described multiple rotating speed as described preset rotation speed;
Described second control unit progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: in described multiple rotating speed, choose corresponding rotating speed, to change the rotating speed of described air supply motor.
9. the air quantity controller of air-conditioner according to claim 8, is characterized in that, described first control unit also for:
When controlling described air supply motor and running with described preset rotation speed, if described air-conditioner enters stoppage protection state, then choose be less than described arbitrary rotating speed in described multiple rotating speed other rotating speed as described preset rotation speed.
10. the air quantity controller of air-conditioner according to claim 7, is characterized in that, described first determining unit specifically for:
According to the current working current of described air supply motor, and correspond to the described operating current of current rotating speed and the relation of static pressure, determine the actual static pressure that described air-conditioner is current.
The air quantity controller of 11. air-conditioners according to claim 7, is characterized in that, described second determining unit specifically for:
The actual static pressure current according to described air-conditioner, and the static pressure of pre-stored and the relation of rotating speed, determine described rotating speed of target.
The air quantity controller of 12. air-conditioners according to any one of claim 7 to 11, it is characterized in that, described second control unit progressively changes the operation of the rotating speed of described air supply motor, specifically comprises: the rotating speed progressively increasing described air supply motor.
13. 1 kinds of air-conditioners, is characterized in that, comprising: the air quantity controller of the air-conditioner according to any one of claim 7 to 12.
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| CN105402864B (en) | 2018-03-27 |
| WO2017113541A1 (en) | 2017-07-06 |
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