CN106154871A - A kind of ventilation shaft chocking-up degree real-time display control method of electric equipment - Google Patents
A kind of ventilation shaft chocking-up degree real-time display control method of electric equipment Download PDFInfo
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- CN106154871A CN106154871A CN201510152342.XA CN201510152342A CN106154871A CN 106154871 A CN106154871 A CN 106154871A CN 201510152342 A CN201510152342 A CN 201510152342A CN 106154871 A CN106154871 A CN 106154871A
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- motor
- microprocessor
- static pressure
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- ventilation shaft
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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
- F24F11/70—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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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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
Abstract
The invention discloses the real-time display control method of ventilation shaft chocking-up degree of a kind of electric equipment, it is characterised in that: described control method comprises the steps: A) motor real time execution parameter is input to microprocessor by operational parameter detection circuit；B) microprocessor is according to the current static pressure PAR inside the motor current ventilation shaft of real time execution parameter estimation；C) current static pressure PAR is calculated real-time static pressure percentage ratio divided by design maximum static pressure PARmax by microprocessor；D) microprocessor utilizes display device to show real-time static pressure percentage ratio, to represent the chocking-up degree of ventilation shaft.It can the most intuitively know the situation that air channel blocks, and the tamper inside cleaning air channel, improves the performance of product, improve the cost performance of product in time.
Description
Technical field:
The present invention relates to the real-time display control method of ventilation shaft chocking-up degree of a kind of electric equipment.
Background technology:
In the room ventilation pipeline of domestic air conditioning, static pressure changes the most as time goes by, such as
Because dust deposited in pipeline or plugged filter.Static pressure also because the installation of pipeline is different often higher than manufacturer real
Test the standard static pressure during nominal system of room.Permanent Boiler pressure control can bring constant in these cases to user
Air quantity, thus under hydrostatic pressure condition widely, maintain comfortable ventilation, the effect freezed or heat, and make
System is run and is reached energy-efficient.
It addition, equally exist the problem of permanent Boiler pressure control in the field of smoke exhaust ventilator, because along with floor not
With or the overstocking of oil circuit, outside static pressure is different, how to bring constant under different static pressure to user
Air quantity, thus under hydrostatic pressure condition widely, maintain comfortable ventilation, this is to we have proposed higher wanting
Asking, along with oily the increasing of the accumulation in air channel, air channel can slowly block.
Along with outside static pressure constantly increases, when outside static pressure is more than design maximum static pressure, and the air quantity of output is the most not
The most constant, this is that client is unwanted.It is therefore necessary to reflect air channel static pressure situation in time, in order to Yong Huneng
Know air channel situation in time, in time cleaning air channel tamper, maintain permanent Boiler pressure control.
Summary of the invention:
The ventilation shaft chocking-up degree that it is an object of the invention to provide a kind of electric equipment shows controlling party in real time
Method, can the most intuitively know the situation that air channel blocks, and the tamper inside cleaning air channel, improves product in time
Performance, improve product cost performance.
It is an object of the invention to be achieved by following technical proposals.
A kind of ventilation shaft chocking-up degree real-time display control method of electric equipment, it is characterised in that: described
Control method comprise the steps:
A) motor real time execution parameter is input to microprocessor by operational parameter detection circuit；
B) microprocessor is according to the current static pressure inside the motor current ventilation shaft of real time execution parameter estimation
PAR；
C) current static pressure PAR is calculated real-time static pressure hundred divided by design maximum static pressure PARmax by microprocessor
Proportion by subtraction；
D) microprocessor utilizes display device to show real-time static pressure percentage ratio, to represent the blocking journey of ventilation shaft
Degree.
Display device described above is made up of multiple LED diodes, by real-time static pressure percentage ratio at 0%-100%
In the range of be divided into multistage to coordinate multiple LED diode operation.
The corresponding all of LED diode of the static pressure percentage ratio of the first order described above does not all work, the second level quiet
Corresponding first the LED diode of pressure percentage ratio is glittering, corresponding first LED bis-of the static pressure percentage ratio of the third level
Pole pipe and second LED diode are the most glittering, corresponding first the LED diode of the static pressure percentage ratio of the fourth stage,
Second LED diode and the 3rd LED diode are the most glittering, the static pressure percentage ratio correspondence first of level V
Individual LED diode, second LED diode, the 3rd LED diode, the 4th LED bis-pole are all dodged
Bright.
Electric equipment described above is range hood or pipeline air-conditioning.
Microprocessor described above is with a permanent wind amount control unit, according to the gear air quantity Q of the user person of choosing,
Microprocessor driven motor and wind wheel rotate, and make ventilation shaft suck or the air quantity of output keeps constant.
The static pressure PARmin that minimum power input Pmin of permanent wind amount control unit described above is corresponding, maximum
The static pressure PARmax that input power Pmax is corresponding, the detection parameter according to being currently operating in permanent wind amount: input in real time
Power P 0 calculates current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
Electric equipment described above include ventilation shaft, motor, wind wheel, power pack, display device and
System controller, system controller with realizing the main control wiring board of the function of electric equipment own, main control
Wiring board drives driven by motor wind wheel to rotate, and rotating of wind wheel drives the air of ventilation shaft to flow, wherein: institute
The motor stated is the motor monomer of a not charged machine controller, including rotating shaft, permanent magnet rotor component, stator
Assembly and case component, permanent magnet rotor component is installed permanent magnet, permanent magnet rotor component and stator module and is formed
Magnetic coupling, stator module includes stator core and the coil windings being wound on stator core；Described master control
On wiring board processed, layout has systematic microprocessor, inverter circuit and motor operating parameter testing circuit, runs ginseng
Motor real time execution parameter is input to systematic microprocessor by number testing circuit, the outfan of systematic microprocessor
Controlling inverter circuit, the outfan of inverter circuit is connected with coil windings；Described step A, step B, step
Rapid microprocessor described in C, step D refers to systematic microprocessor.
Electric equipment described above include ventilation shaft, motor, wind wheel, power pack, display device and
System controller, system controller with realizing the main control wiring board of the function of electric equipment own, main control
Systematic microprocessor is set on wiring board, wherein: described motor includes electric machine controller and motor monomer,
Motor monomer includes rotating shaft, permanent magnet rotor component, stator module and case component, and permanent magnet rotor component is pacified
Dress permanent magnet, permanent magnet rotor component and stator module form magnetic coupling, and stator module includes stator core and volume
The coil windings being wound on stator core；On described electric machine controller, layout has motor microprocessor, inversion
Circuit and motor operating parameter testing circuit, motor real time execution parameter is input to by operational parameter detection circuit
Motor microprocessor, the outfan of motor microprocessor controls inverter circuit, the outfan of inverter circuit and line
Circle winding connects；Motor microprocessor is connected with systematic microprocessor and is in communication with each other, described step A, step
Microprocessor described in B, step C, step D refers to motor microprocessor.
The present invention compared with prior art, has the effect that
1) present invention utilizes operational parameter detection circuit that motor real time execution parameter is input to microprocessor；Micro-
Processor is according to the current static pressure PAR inside the motor current ventilation shaft of real time execution parameter estimation；Micro-process
Current static pressure PAR is calculated real-time static pressure percentage ratio divided by design maximum static pressure PARmax by device；Micro-process
Device utilizes display device to show real-time static pressure percentage ratio, to represent the chocking-up degree of ventilation shaft.User can and
Shi Zhiguan knows the situation that air channel blocks, and the tamper inside cleaning air channel, improves the performance of product in time,
Improve the cost performance of product.
2) display device described above is made up of multiple LED diodes, is existed by real-time static pressure percentage ratio
It is divided into multistage to coordinate multiple LED diode operation in the range of 0%-100%, the first order described above
The corresponding all of LED diode of static pressure percentage ratio does not all work, corresponding first LED of the static pressure percentage ratio of the second level
Diode is glittering, corresponding first the LED diode of the static pressure percentage ratio of the third level and second LED diode
The most glittering, corresponding first the LED diode of the static pressure percentage ratio of the fourth stage, second LED diode and the
Three LED diodes are the most glittering, corresponding first the LED diode of the static pressure percentage ratio of level V, second
LED diode, the 3rd LED diode, the 4th LED bis-pole are the most glittering.Scheme is simple, easily realizes,
Low cost.
3) microprocessor is with a permanent wind amount control unit, according to the gear air quantity Q of the user person of choosing, micro-place
Reason device drives motor and wind wheel to rotate, and makes ventilation shaft suck or the air quantity of output keeps constant, above-mentioned
The static pressure PARmi n corresponding for minimum power input Pmi n of described permanent wind amount control unit, maximal input
Static pressure PARmax corresponding for Pmax, the detection parameter according to being currently operating in permanent wind amount: input power P0 in real time
Calculate current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
Utilizing above-mentioned formula to calculate, substantially can guarantee that computational accuracy, algorithm is simple, easily realizes, and reduces cost.
4) motor described in is the motor monomer of a not charged machine controller, described main control wiring board
Upper layout has systematic microprocessor, inverter circuit and motor operating parameter testing circuit, operational parameter detection electricity
Motor real time execution parameter is input to systematic microprocessor by road, and the outfan of systematic microprocessor controls inversion
Circuit, the outfan of inverter circuit is connected with coil windings；Described step A, step B, step C, step
Rapid microprocessor described in D refers to systematic microprocessor, can reduce product cost to greatest extent.
Accompanying drawing illustrates:
Fig. 1 is embodiments of the invention one theory structure schematic diagrams；
Fig. 2 embodiment of the present invention one is at the scheme of installation of air conditioning applications；
Fig. 3 is the axonometric chart of motor monomer of the present invention；
Fig. 4 is the sectional view of motor monomer of the present invention；
Fig. 5 is the circuit block diagram of the embodiment of the present invention one；
Fig. 6 be Fig. 5 be corresponding implementing circuit block diagram；
Fig. 7 is that the embodiment of the present invention one records to obtain family's permanent wind amount matched curve by experiment；
Fig. 8 is the structural representation of the display device of the embodiment of the present invention one；
Fig. 9 is the theory structure schematic diagram of the embodiment of the present invention two；
Figure 10 is the axonometric chart of the motor of the embodiment of the present invention two；
Figure 11 is the structure sectional view of the motor of the embodiment of the present invention two.
Detailed description of the invention:
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment one:
As shown in Figure 1 and Figure 2, inner at a typical ventilation shaft (abbreviation air channel), it is mounted with a drum
Wind system (such as air conditioner), replaces with " motor monomer+wind wheel " in figure, also has airstrainer in pipeline,
Air blast is started during electric motor starting, owing to air outlet is relevant with room number with the quantity of air intake vent, the design of pipeline
The most unified standard, airstrainer is likely to different pressure drops simultaneously, if to obtain constant
Air quantity must have a good technical scheme.
A kind of (air-conditioning) ventilation shaft chocking-up degree real-time display control method of the electric equipment of the present invention, institute
The electric equipment stated includes motor, wind wheel, power pack and system controller, and system controller is with realization
The main control wiring board of the function of electric equipment own, main control wiring board drives driven by motor wind wheel to rotate, its
In: described motor monomer is the motor monomer of a not tape controller, including rotating shaft, permanent magnet rotor component,
Stator module and case component, permanent magnet rotor component is installed permanent magnet, permanent magnet rotor component and stator module
Forming magnetic coupling, stator module includes stator core and the coil windings being wound on stator core；Described
On main control wiring board, layout has systematic microprocessor, inverter circuit and motor operating parameter testing circuit, fortune
Motor real time execution parameter is input to systematic microprocessor by line parameter testing circuit, systematic microprocessor defeated
Going out end and control inverter circuit, the outfan of inverter circuit is connected with coil windings.
As shown in Figure 3, Figure 4, above-mentioned motor is motor monomer 1, and described motor monomer 1 includes stator pack
Part 12, rotor assembly 13 and case component 11, stator module 13 is arranged on case component 11, motor
Monomer 1 is provided with the Hall element 14 (rotor position measurement circuit) of detection rotor-position, rotor assembly
13 inner sides being sleeved on stator module 12 or outside composition, rotor position measurement electric circuit inspection rotor-position is believed
Number and be input to systematic microprocessor, it is micro-that the bus circuit of detection is input to system by bus current testing circuit
Processor, DC bus-bar voltage is input to systematic microprocessor, the micro-process of system by busbar voltage testing circuit
Device controls inverter circuit, and inverter circuit controls the power on/off of each phase coil winding of stator module 12.Rotor position
Put measuring circuit, bus current testing circuit, busbar voltage testing circuit are motor operating parameter testing circuits
A part.
As shown in Figure 5, Figure 6, it is assumed that PM motor is 3 phase brushless direct current permanent magnetic synchronous motors, rotor-position
Measuring circuit 14 typically uses 3 Hall elements, 3 Hall elements to detect one 360 degree electricity respectively
The rotor-position in angle cycle, often turn over 120 degree of electrical angles change each phase coil of stator modules 12 around
The energising of group, forms 3 phase 6 step control models.Exchange input (AC I NPUT) through by diode D7,
After the full-wave rectifying circuit of D8, D9, D10 composition, export DC bus-bar voltage Vbus in one end of electric capacity C1,
DC bus-bar voltage Vbus is relevant with input ac voltage, after the voltage of exchange input (AC I NPUT) determines,
The line voltage UP of 3 phase windings is PWM copped wave output voltage, and UP=Vbus*w, w are systematic microprocessor inputs
To the dutycycle of the pwm signal of inverter circuit, change line voltage UP and can change DC bus current I bus,
Inverter circuit is made up of electronic switching tube Q1, Q2, Q3, Q4, Q5, Q6, electronic switching tube Q1, Q2, Q3,
Q4, Q5, Q6 control end exported by microprocessor respectively 6 road pwm signals (P1, P2, P3, P4,
P5, P6) control, inverter circuit is also connected with resistance R1 for detecting bus current I bus, and bus current detects
Circuit is sent to systematic microprocessor after being changed by the detection bus current I bus of resistance R1.Motor input work
Rate controls to be controlled by electronic switching tube Q7,1 road pwm signal--the i.e. P0 of microprocessor output, controls electricity
The ON time of sub-switching tube Q7, to control power input to machine.Power input to machine is equal to dc bus electricity
Stream I bus is multiplied by DC bus-bar voltage Vbus.The signal that the rotating speed V Hall element of motor detects respectively calculates
Obtain.
Assuming to set up permanent wind amount control unit at systematic microprocessor, permanent wind amount control unit arranges permanent wind amount
Control function P=f (n), wherein P is power input to machine, and n is motor running speed, the control of permanent wind amount
Function P=f (n) processed is obtained by: first gather initial data, if at least 1 target air volume, from
Low static pressure is adjusted to high static pressure always, and this static pressure wants to contain the actual static pressure scope of application, quiet in regulation
During pressure, allow motor be in constant speed control, and inputted in real time by regulation motor speed n and motor
Power P i keeps air quantity to be target air volume, and the motor recording motor steady-state speed n now and correspondence is real-time
Input power Pi and blood pressure lowering data PAR, so, for certain dry target air volume, all create one group of rotating speed
N and real-time input power Pi of motor, then produce in several target air volume every by the method for curve matching
One corresponding function P=f (n) of target air volume.Permanent wind amount control function relational expression P=f (n) can be one
Individual second order function: P=C1+C2×n+C3×n2, concrete derivation can be shown in that my company was in Shen in 2014
Patent announcement CN104180858A please, title: a kind of blower motor measures the method for air quantity,
The inside has how detailed introduction sets up control function P=f (n) of permanent wind amount.As long as control rotating speed n and
Two parameters of real-time input power Pi of motor just can realize permanent Boiler pressure control.
Lower expression we test the experimental data that discharge quantity of fan is 1200CFM.
Above-mentioned table is utilized to set up such as the curve fitted figure of Fig. 7.Obtain control function P=f (n) of permanent wind amount.
Assume the static pressure PARmin that minimum power input Pmin of permanent wind amount control unit is corresponding, maximal input
Static pressure PARmax corresponding for Pmax, the detection parameter according to being currently operating in permanent wind amount: input power P0 in real time
Calculate current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
The static pressure PARmin=0 that in Fig. 7, minimum power input Pmin=90.2 is corresponding；Maximal input Pmax=128.6
Corresponding static pressure PARmax=40, rotor position measurement circuit, bus current testing circuit, busbar voltage detect
Signal is delivered to systematic microprocessor by circuit, obtains the most real-time rotating speed n0 and real-time input power P0；
Above parameter is substituted into above-mentioned formula, obtains the current static pressure PAR inside current ventilation shaft.
The real-time display control method of ventilation shaft chocking-up degree of a kind of electric equipment of the present invention, its feature exists
In: described control method comprises the steps:
A) motor real time execution parameter is input to systematic microprocessor by operational parameter detection circuit；
B) systematic microprocessor is according to the current static pressure inside the motor current ventilation shaft of real time execution parameter estimation
Value PAR；
C) current static pressure PAR is calculated the most quiet divided by design maximum static pressure PARmax by systematic microprocessor
Pressure percentage ratio；
D) systematic microprocessor utilizes display device to show real-time static pressure percentage ratio, to represent the stifled of ventilation shaft
Plug degree.
As shown in Figure 8, display device is made up of multiple LED diodes, by real-time static pressure percentage ratio at 0%-100%
In the range of be divided into multistage to coordinate multiple LED diode operation.Can be by real-time static pressure percentage ratio at 0%-20%
As the first order, using real-time static pressure percentage ratio at 20%-40% as the second level, real-time static pressure percentage ratio is existed
40%-60% as the third level, using real-time static pressure percentage ratio at 6%-80% as the fourth stage, by real-time static pressure percentage
All do not work as level V, the static pressure percentage ratio all of LED diode of correspondence of the first order than at 80%-100%,
Corresponding first the LED diode of the static pressure percentage ratio of the second level is glittering, the static pressure percentage ratio correspondence of the third level the
One LED diode and second LED diode are the most glittering, corresponding first of the static pressure percentage ratio of the fourth stage
LED diode, second LED diode and the 3rd LED diode are the most glittering, the static pressure percentage of level V
Than corresponding first LED diode, second LED diode, the 3rd LED diode, the 4th LED
Two poles are the most glittering.
Embodiment two:
As shown in Fig. 9, Figure 10, Figure 11, the smoke exhaust ventilator of the present invention includes ventilation shaft, motor, wind
Wheel, power pack, display device and system controller, system controller is with realizing the merit of electric equipment own
The main control wiring board of energy, main control wiring board arranges systematic microprocessor, wherein: described motor bag
Including electric machine controller and motor monomer, motor monomer includes rotating shaft, permanent magnet rotor component, stator module and machine
Shell component, permanent magnet rotor component is installed permanent magnet, permanent magnet rotor component and stator module and forms magnetic coupling,
Stator module includes stator core and the coil windings being wound on stator core；On described electric machine controller
Layout has motor microprocessor, inverter circuit and motor operating parameter testing circuit, operational parameter detection circuit
Motor real time execution parameter is input to motor microprocessor, and the outfan of motor microprocessor controls inversion electricity
Road, the outfan of inverter circuit is connected with coil windings；Motor microprocessor is connected phase with systematic microprocessor
Intercommunication.
Motor by electric machine controller 2 and motor monomer 1, described motor monomer 1 include stator module 12,
Rotor assembly 13 and case component 11, stator module 13 is arranged on case component 11, and motor monomer 1 is pacified
Equipped with detection rotor-position Hall element 14, rotor assembly 13 be sleeved on stator module 12 inner side or
Forming outside person, electric machine controller 2 includes controlling box 22 and being arranged on the control circuit controlled inside box 22
Plate 21, control circuit board 21 generally comprises motor microprocessor, bus current testing circuit, busbar voltage inspection
Slowdown monitoring circuit, inverter circuit and rotor position measurement circuit 14 (i.e. Hall element), rotor position measurement circuit
Detection rotor-position signal is also input to motor microprocessor, and bus current testing circuit is by the bus electricity of detection
Road is input to motor microprocessor, and DC bus-bar voltage is input to the micro-process of motor by busbar voltage testing circuit
Device, motor microprocessor controls inverter circuit, and inverter circuit controls each phase coil winding of stator module 12
Power on/off.
The real-time display control method of ventilation shaft chocking-up degree of smoke exhaust ventilator of the present invention, it is characterised in that: institute
The control method stated comprises the steps:
A) motor real time execution parameter is input to motor microprocessor by operational parameter detection circuit；
B) motor microprocessor is according to the current static pressure inside the motor current ventilation shaft of real time execution parameter estimation
Value PAR；
C) current static pressure PAR is calculated the most quiet divided by design maximum static pressure PARmax by motor microprocessor
Pressure percentage ratio；
D) real-time static pressure percentage ratio is delivered to systematic microprocessor by motor microprocessor, and systematic microprocessor utilizes
Display device shows real-time static pressure percentage ratio, to represent the chocking-up degree of ventilation shaft.
Above-mentioned display device is made up of multiple LED diodes, by real-time static pressure percentage ratio in the scope of 0%-100%
Inside it is divided into multistage to coordinate multiple LED diode operation, the corresponding all of LED of the static pressure percentage ratio of the first order
Diode does not all work, and corresponding first the LED diode of the static pressure percentage ratio of the second level is glittering, the third level quiet
Pressure corresponding first the LED diode of percentage ratio and second LED diode are the most glittering, the static pressure hundred of the fourth stage
Corresponding first the LED diode of proportion by subtraction, second LED diode and the 3rd LED diode are the most glittering,
The static pressure percentage ratio of level V corresponding first LED diode, second LED diode, the 3rd LED
Diode, the 4th LED bis-pole are the most glittering.
Assuming to set up permanent wind amount control unit at motor microprocessor, permanent wind amount control unit arranges permanent wind amount
Control function P=f (n), wherein P is power input to machine, and n is motor running speed, the control of permanent wind amount
Function P=f (n) processed is obtained by: first gather initial data, if at least 1 target air volume, from
Low static pressure is adjusted to high static pressure always, and this static pressure wants to contain the actual static pressure scope of application, quiet in regulation
During pressure, allow motor be in constant speed control, and inputted in real time by regulation motor speed n and motor
Power P i keeps air quantity to be target air volume, and the motor recording motor steady-state speed n now and correspondence is real-time
Input power Pi and blood pressure lowering data PAR, so, for certain dry target air volume, all create one group of rotating speed
N and real-time input power Pi of motor, then produce in several target air volume every by the method for curve matching
One corresponding function P=f (n) of target air volume.
Assume the static pressure PARmin that minimum power input Pmin of permanent wind amount control unit is corresponding, maximum input
The static pressure PARmax that power P max is corresponding, the detection parameter according to being currently operating in permanent wind amount: input power in real time
P0 calculates current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
Rotor position measurement circuit, bus current testing circuit, that signal is delivered to motor by busbar voltage testing circuit is micro-
Processor, obtains the most real-time rotating speed n0 and real-time input power P0；Above parameter is substituted into above-mentioned formula,
Obtain the current static pressure PAR inside current ventilation shaft.
Claims (8)
1. the real-time display control method of ventilation shaft chocking-up degree of an electric equipment, it is characterised in that: institute
The control method stated comprises the steps:
A) motor real time execution parameter is input to microprocessor by operational parameter detection circuit；
B) microprocessor is according to the current static pressure inside the motor current ventilation shaft of real time execution parameter estimation
PAR；
C) current static pressure PAR is calculated real-time static pressure hundred divided by design maximum static pressure PARmax by microprocessor
Proportion by subtraction；
D) microprocessor utilizes display device to show real-time static pressure percentage ratio, to represent the blocking journey of ventilation shaft
Degree.
The ventilation shaft chocking-up degree of a kind of electric equipment the most according to claim 1 shows control in real time
Method, it is characterised in that: display device is made up of multiple LED diodes, is existed by real-time static pressure percentage ratio
It is divided into multistage to coordinate multiple LED diode operation in the range of 0%-100%.
The ventilation shaft chocking-up degree of a kind of electric equipment the most according to claim 2 shows controlling party in real time
Method, it is characterised in that: the corresponding all of LED diode of the static pressure percentage ratio of the first order does not all work, the second level
Corresponding first the LED diode of static pressure percentage ratio glittering, corresponding first LED of the static pressure percentage ratio of the third level
Diode and second LED diode are the most glittering, corresponding first LED bis-pole of the static pressure percentage ratio of the fourth stage
Pipe, second LED diode and the 3rd LED diode are the most glittering, and the static pressure percentage ratio of level V is corresponding
First LED diode, second LED diode, the 3rd LED diode, the 4th LED bis-pole
The most glittering.
4. the ventilation shaft chocking-up degree according to a kind of electric equipment described in claim 1 or 2 or 3 is real-time
Display control method, it is characterised in that: described electric equipment is range hood or pipeline air-conditioning.
5. the ventilation shaft chocking-up degree according to a kind of electric equipment described in claim 1 or 2 or 3 is real-time
Display control method, it is characterised in that: microprocessor, with a permanent wind amount control unit, selects according to user
The gear air quantity Q of person, microprocessor driven motor and wind wheel rotate, and makes ventilation shaft suck or output
Air quantity keeps constant.
6. the ventilation shaft chocking-up degree according to a kind of electric equipment described in claim 1 or 2 or 3 is real-time
Display control method, it is characterised in that: corresponding quiet of minimum power input Pmin of permanent wind amount control unit
Pressure PARmin, static pressure PARmax corresponding for maximal input Pmax, according to being currently operating in permanent wind amount
Detection parameter: in real time input power P0 calculates current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
7. the ventilation shaft chocking-up degree according to a kind of electric equipment described in claim 1 or 2 or 3 is real-time
Display control method, it is characterised in that: described electric equipment includes ventilation shaft, motor, wind wheel, electricity
Source part, display device and system controller, system controller is with the master realizing the function of electric equipment own
Control circuit board, main control wiring board drives driven by motor wind wheel to rotate, and the rotation of wind wheel drives ventilation shaft
Air flowing, wherein: described motor is the motor monomer of a not charged machine controller, including rotating shaft,
Permanent magnet rotor component, stator module and case component, permanent magnet rotor component is installed permanent magnet, p-m rotor
Assembly and stator module form magnetic coupling, and stator module includes stator core and the line being wound on stator core
Circle winding；On described main control wiring board, layout has systematic microprocessor, inverter circuit and motor to run ginseng
Number testing circuit, motor real time execution parameter is input to systematic microprocessor, is by operational parameter detection circuit
The outfan of system microprocessor controls inverter circuit, and the outfan of inverter circuit is connected with coil windings；Described
Step A, step B, step C, microprocessor described in step D refer to systematic microprocessor.
8. the ventilation shaft chocking-up degree according to a kind of electric equipment described in claim 1 or 2 or 3 is real-time
Display control method, it is characterised in that: described electric equipment includes ventilation shaft, motor, wind wheel, electricity
Source part, display device and system controller, system controller is with the master realizing the function of electric equipment own
Control circuit board, main control wiring board arranges systematic microprocessor, wherein: described motor includes motor
Controller and motor monomer, motor monomer includes rotating shaft, permanent magnet rotor component, stator module and case component,
Permanent magnet, permanent magnet rotor component and stator module are installed in permanent magnet rotor component and form magnetic coupling, stator module
Including stator core and the coil windings being wound on stator core；On described electric machine controller, layout has electricity
Machine microprocessor, inverter circuit and motor operating parameter testing circuit, operational parameter detection circuit is real by motor
Time operational factor be input to motor microprocessor, the outfan of motor microprocessor controls inverter circuit, inversion
The outfan of circuit is connected with coil windings；Motor microprocessor is connected with systematic microprocessor and is in communication with each other,
Microprocessor described in described step A, step B, step C, step D refers to motor microprocessor.
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| CN201510152342.XA CN106154871B (en) | 2015-03-31 | 2015-03-31 | A kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment |
| PCT/CN2015/090338 WO2016155270A1 (en) | 2015-03-31 | 2015-09-23 | Real-time display control method for ventilation duct clogging degree of electrical appliance |
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| CN201510152342.XA CN106154871B (en) | 2015-03-31 | 2015-03-31 | A kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment |
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| CN109357360A (en) * | 2018-09-27 | 2019-02-19 | 四川长虹空调有限公司 | The dirty stifled situation detection of air conditioner filter screen and air quantity control method |
| CN109357382A (en) * | 2018-09-27 | 2019-02-19 | 四川长虹空调有限公司 | Air-conditioning constant air capacity control |
| CN110657476A (en) * | 2019-09-30 | 2020-01-07 | 佛山市顺德区美的洗涤电器制造有限公司 | Estimation method of air duct parameters of range hood and range hood |
| CN112168065A (en) * | 2020-09-29 | 2021-01-05 | 追创科技(苏州)有限公司 | Method, device and apparatus for determining blockage of air duct in cleaning equipment and storage medium |
| CN113405220A (en) * | 2021-06-18 | 2021-09-17 | 佛山市顺德区美的电子科技有限公司 | Air outlet equipment and air duct detection method thereof |
| CN113864999A (en) * | 2021-09-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Air conditioning system energy consumption prediction method and device and air conditioning system |
| CN115508630A (en) * | 2021-06-23 | 2022-12-23 | 芜湖美的智能厨电制造有限公司 | Smoke exhaust ventilator detection method and device and smoke exhaust ventilator |
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| CN113405220A (en) * | 2021-06-18 | 2021-09-17 | 佛山市顺德区美的电子科技有限公司 | Air outlet equipment and air duct detection method thereof |
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Also Published As
| Publication number | Publication date |
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| WO2016155270A1 (en) | 2016-10-06 |
| CN106154871B (en) | 2019-05-31 |
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