CN106154871B - A real-time display control method for the blockage degree of ventilation ducts of electrical equipment - Google Patents
A real-time display control method for the blockage degree of ventilation ducts of electrical equipment Download PDFInfo
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- CN106154871B CN106154871B CN201510152342.XA CN201510152342A CN106154871B CN 106154871 B CN106154871 B CN 106154871B CN 201510152342 A CN201510152342 A CN 201510152342A CN 106154871 B CN106154871 B CN 106154871B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000003068 static effect Effects 0.000 claims abstract description 108
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000009897 systematic effect Effects 0.000 claims description 33
- 239000000178 monomer Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 17
- 238000013461 design Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 230000005389 magnetism Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Control Of Multiple Motors (AREA)
- Ventilation (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a real-time display control method for the blockage degree of a ventilating duct of electrical equipment, which is characterized by comprising the following steps: the control method comprises the following steps: A) the operation parameter detection circuit inputs the real-time operation parameters of the motor into the microprocessor; B) the microprocessor estimates the current static pressure value PAR in the current ventilating duct according to the real-time operation parameters of the motor; C) the microprocessor divides the current static pressure value PAR by the designed maximum static pressure PARmax to calculate the real-time static pressure percentage; D) the microprocessor displays the real-time static pressure percentage by means of a display device to indicate the degree of blockage of the ventilation duct. The device can intuitively know the blockage condition of the air duct in time, clear up the blockage in the air duct in time, perfect the performance of the product and improve the cost performance of the product.
Description
Technical field:
The present invention relates to a kind of ventilation shaft chocking-up degree real-time display control methods of electrical equipment.
Background technique:
In the room ventilation pipeline of domestic air conditioning, static pressure often changes as time goes by, such as because pipeline
Dust stratification or plugged filter.Static pressure also because the installation of pipeline is different and when the nominal system in often higher than manufacturer laboratory
Standard static pressure.Permanent Boiler pressure control can bring constant air quantity to user in these cases, thus in extensive hydrostatic pressure condition
The effect of the lower comfortable ventilation of maintenance, refrigeration or heating, and system operation is made to reach energy-efficient.
In addition, the problem of the field of smoke exhaust ventilator equally exists permanent Boiler pressure control because with floor difference or
Oil circuit is overstock, and external static pressure is different, and how constant air quantity is brought to user under different static pressure, thus extensive
Hydrostatic pressure condition under maintain comfortable ventilation, this is to we have proposed higher requirement, as the oil of the accumulation in air duct increases,
Air duct can slowly block.
As external static pressure constantly increases, when external static pressure is greater than design maximum static pressure, the air quantity of output is just no longer constant,
This is that client is unwanted.It is therefore necessary to reflect air duct static pressure situation in time, so that user can know air duct situation in time, and
The air duct Shi Qingli tamper maintains permanent Boiler pressure control.
Summary of the invention:
The object of the present invention is to provide a kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment, can and
Shi Zhiguan knows the situation of air duct blocking, clears up the tamper inside air duct in time, improves the performance of product, improve the property of product
Valence ratio.
The purpose of the present invention is what is be achieved by following technical proposals.
A kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment, it is characterised in that: the control
Method includes the following 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 current ventilation shaft of motor real time execution parameter estimation；
C) current static pressure PAR is calculated real-time static pressure percentage divided by design maximum static pressure PARmax by microprocessor；
D) microprocessor shows real-time static pressure percentage using display device, to indicate the chocking-up degree of ventilation shaft.
Display device described above is made of multiple LED diodes, by real-time static pressure percentage 0%-100% model
It is divided into multistage in enclosing to cooperate multiple LED diode operations.
The static pressure percentage of the first order described above corresponds to all LED diodes and does not all work, the static pressure hundred of the second level
Divide, the static pressure percentage corresponding first LED diode of the third level and second LED more glittering than corresponding first LED diode
Diode is all glittering, the corresponding first LED diode of the static pressure percentage of the fourth stage, second LED diode and third LED
Diode is all glittering, the static pressure percentage of level V corresponding first LED diode, second LED diode, third LED
Diode, the 4th bis- pole LED are all glittering.
Electrical equipment described above is range hood or pipeline air-conditioning.
Microprocessor described above has a permanent wind amount control unit, according to the gear air quantity Q of the user person of choosing, micro- place
Device driving motor and wind wheel rotation are managed, the air quantity for sucking or exporting is kept constant.
The corresponding static pressure PARmin of the minimum power input Pmin of permanent wind amount control unit described above, maximal input
The corresponding static pressure PARmax of Pmax, according to the detection parameters for being currently operating in permanent wind amount: real-time input power P0 is calculated currently
Static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
Electrical equipment described above includes ventilation shaft, motor, wind wheel, power unit, display device and system control
Device, system controller drive with the main control wiring board for realizing electrical equipment function itself, main control wiring board driving motor
Wind wheel rotation, the rotation of wind wheel drive the air flowing of ventilation shaft, in which: the motor is one without electric machine controller
Motor monomer, including shaft, permanent magnet rotor component, stator module and case component install permanent magnet in permanent magnet rotor component,
Permanent magnet rotor component and stator module form magnetic coupling, and stator module includes stator core and the coil on stator core
Winding；Layout has systematic microprocessor, inverter circuit and motor operating parameter detection circuit on the main control wiring board, transports
Motor real time execution parameter is input to systematic microprocessor by row electrical parameter detection circuit, and the output end control of systematic microprocessor is inverse
The output end on power transformation road, inverter circuit is connect with coil windings；The step A, step B, step C, micro- place described in step D
Reason device refers to systematic microprocessor.
Electrical equipment described above includes ventilation shaft, motor, wind wheel, power unit, display device and system control
Device, system controller have the main control wiring board for realizing electrical equipment function itself, and setting system is micro- on main control wiring board
Processor, in which: the motor includes electric machine controller and motor monomer, motor monomer include shaft, permanent magnet rotor component,
Stator module and case component install permanent magnet in permanent magnet rotor component, and permanent magnet rotor component and stator module form magnetic coupling,
Stator module includes stator core and the coil windings on stator core；Layout has motor on the electric machine controller
Microprocessor, inverter circuit and motor operating parameter detection circuit, operational parameter detection circuit are defeated by motor real time execution parameter
Enter to motor microprocessor, the output end control inverter circuit of motor microprocessor, the output end and coil windings of inverter circuit
Connection；Motor microprocessor is connect with systematic microprocessor to be in communication with each other, the step A, step B, step C, described in step D
Microprocessor refer to motor microprocessor.
Compared with prior art, the present invention having the effect that
1) motor real time execution parameter is input to microprocessor using operational parameter detection circuit by the present invention；Microprocessor
According to the current static pressure PAR inside the current ventilation shaft of motor real time execution parameter estimation；Microprocessor is by current static pressure
PAR calculates real-time static pressure percentage divided by design maximum static pressure PARmax；Microprocessor is shown quiet in real time using display device
Percentage is pressed, to indicate the chocking-up degree of ventilation shaft.User can intuitively know the situation of air duct blocking in time, clear up wind in time
Tamper inside road improves the performance of product, improves the cost performance of product.
2) display device described above is made of multiple LED diodes, by real-time static pressure percentage 0%-100%'s
It is divided into multistage in range to cooperate multiple LED diode operations, the static pressure percentage of the first order described above corresponds to all
LED diode does not all work, and the corresponding first LED diode of the static pressure percentage of the second level is glittering, the static pressure percentage of the third level
Corresponding first LED diode and second LED diode are all glittering, corresponding first LED bis- of the static pressure percentage of the fourth stage
Pole pipe, second LED diode and third LED diode are all glittering, corresponding first LED bis- of the static pressure percentage of level V
Pole pipe, second LED diode, third LED diode, the 4th bis- pole LED are all glittering.Scheme is simple, easy to accomplish, at
This is low.
3) microprocessor has 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 rotation, keep constant the air quantity for sucking or exporting, permanent wind amount control unit described above
The minimum power input Pmi n corresponding static pressure PARmax of corresponding static pressure PARmi n, maximal input Pmax, according to working as
Detection parameters of the preceding work in permanent wind amount: real-time input power P0 calculates current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
It being calculated using above-mentioned formula, can guarantee computational accuracy substantially, algorithm is simple, and it is easy to accomplish, reduce cost.
4) motor described in is a motor monomer without electric machine controller, and being laid out on the main control wiring board has
Systematic microprocessor, inverter circuit and motor operating parameter detection circuit, operational parameter detection circuit join motor real time execution
Number is input to systematic microprocessor, and the output end of systematic microprocessor controls inverter circuit, the output end and coil of inverter circuit
Winding connection；The step A, step B, step C, microprocessor refers to systematic microprocessor described in step D, can be maximum
Limit reduces product cost.
Detailed description of the invention:
Fig. 1 is one theory structure schematic diagram of the embodiment of the present invention；
Scheme of installation of Fig. 2 embodiment of the present invention one in air conditioning applications；
Fig. 3 is the perspective view of motor monomer of the present invention；
Fig. 4 is the cross-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 is that Fig. 5 is corresponding implementing circuit block diagram；
Fig. 7, which is the embodiment of the present invention one, measures to obtain the amount matched curve of family's permanent wind by experiment；
Fig. 8 is the structural schematic diagram 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 perspective view 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.
Specific embodiment:
Below by specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Embodiment one:
As shown in Figure 1 and Figure 2, inner in a typical ventilation shaft (abbreviation air duct), it is mounted with a blower system (such as
Air conditioner), with " motor monomer+wind wheel " replacement in figure, there are also airstrainer in pipeline, when electric motor starting, starts air blast, by
Related with room number in the quantity of air outlet and air intake vent, pipeline designs also ununified standard, while airstrainer
There may also be different pressure drops, if to obtain constant air quantity there must be a good technical solution.
A kind of (air-conditioning) ventilation shaft chocking-up degree real-time display control method of electrical equipment of the invention, the electricity
Device equipment includes motor, wind wheel, power unit and system controller, and system controller is with realization electrical equipment function itself
Main control wiring board, main control wiring board driving motor drive wind wheel rotation, in which: the motor monomer is one without control
The motor monomer of device processed, including shaft, permanent magnet rotor component, stator module and case component are installed forever in permanent magnet rotor component
Magnet, permanent magnet rotor component and stator module form magnetic coupling, and stator module includes stator core and on stator core
Coil windings；Layout has systematic microprocessor, inverter circuit and motor operating parameter detection on the main control wiring board
Motor real time execution parameter is input to systematic microprocessor, the output of systematic microprocessor by circuit, operational parameter detection circuit
End control inverter circuit, the output end of inverter circuit are connect with coil windings.
As shown in Figure 3, Figure 4, above-mentioned motor is motor monomer 1, and the motor monomer 1 includes stator module 12, rotor
Component 13 and case component 11, stator module 13 are mounted on case component 11, and motor monomer 1 is equipped with detection rotor-position
Hall sensor 14 (rotor position measurement circuit), rotor assembly 13 are sleeved on inside or the outside composition of stator module 12,
Rotor position measurement circuit detection rotor-position signal is simultaneously input to systematic microprocessor, and bus current detection circuit will test
Bus circuit is input to systematic microprocessor, and DC bus-bar voltage is input to systematic microprocessor by busbar voltage detection circuit,
Systematic microprocessor controls inverter circuit, and inverter circuit controls the power on/off of each phase coil winding of stator module 12.Rotor position
Set a part that measuring circuit, bus current detection circuit, busbar voltage detection circuit are motor operating parameter detection circuits.
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 measurement circuit 14
3 Hall sensors are generally used, 3 Hall sensors detect the rotor-position in 360 degree of electrical angle period respectively, and every turn
The energization that 120 degree of electrical angles change each phase coil winding of a stator module 12 is crossed, 3 phase, 6 step control model is formed.It exchanges defeated
Enter (AC I NPUT) after the full-wave rectifying circuit being made of diode D7, D8, D9, D10, is exported in one end of capacitor C1
DC bus-bar voltage Vbus, DC bus-bar voltage Vbus is related with input ac voltage, the voltage of exchange input (AC I NPUT)
After determination, the line voltage UP of 3 phase windings is PWM copped wave output voltage, and it is inverse that UP=Vbus*w, w are that systematic microprocessor is input to
The duty ratio of the pwm signal on power transformation road, changing line voltage UP can change DC bus current I bus, and inverter circuit is by electronics
Switching tube Q1, Q2, Q3, Q4, Q5, Q6 composition, the control terminal of electronic switching tube Q1, Q2, Q3, Q4, Q5, Q6 are respectively by microprocessor
6 road pwm signals (P1, P2, P3, P4, the P5, P6) control of output, inverter circuit are also connected with resistance R1 for detecting bus current I
Bus, bus current detection circuit are transmitted to systematic microprocessor after converting the detection bus current I bus of resistance R1.Motor
Input power control is controlled by electronic switching tube Q7,1 road pwm signal -- i.e. P0 of microprocessor output, to control electronic switch
The turn-on time of pipe Q7, to control power input to machine.Power input to machine is equal to DC bus current I bus multiplied by direct current mother
Line voltage Vbus.The signal that the revolving speed V Hall sensor of motor detects respectively is calculated.
Assuming that establishing permanent wind amount control unit in systematic microprocessor, the control letter of permanent wind amount is arranged in permanent wind amount control unit
Number P=f (n), wherein P is power input to machine, and n is motor operation revolving speed, and the control function P=f (n) of permanent wind amount is to obtain in this way
: initial data is first acquired, if adjusting always from low static pressure to high static pressure, this static pressure is wanted at least one target air volume
The practical static pressure range that application can be covered allows motor to be in constant speed control, and by adjusting electricity during regulating static
It is target air volume that the machine revolving speed n and real-time input power Pi of motor, which keeps air quantity, and records motor steady-state speed n at this time and correspondence
The real-time input power Pi of motor and decompression data PAR, in this way, for certain dry target air volume, all produce one group of revolving speed n and
The real-time input power Pi of motor, then generates each target air volume pair in several target air volumes by the method for curve matching
Answer a function P=f (n).Permanent wind amount control function relational expression P=f (n) can be second order function: P=C1+C2×n+C3
×n2, specific derivation process can be shown in patent announcement CN104180858A in application in 2014 of my company, title: Yi Zhongfeng
There are the detailed control function P=f (n) for introducing and how establishing permanent wind amount in the method for electromechanical machine measurement air quantity, the inside.As long as control
Revolving speed n and motor two parameters of real-time input power Pi can realize permanent Boiler pressure control.
It is lower to indicate that we test the experimental data that discharge quantity of fan is 1200CFM.
The curve matching figure such as Fig. 7 is established using above-mentioned table.Obtain the control function P=f (n) of permanent wind amount.
Assuming that the minimum power input Pmin of permanent wind amount control unit corresponding static pressure PARmin, maximal input Pmax
Corresponding static pressure PARmax, according to the detection parameters for being currently operating in permanent wind amount: real-time input power P0 calculates current static pressure
Value PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
The corresponding static pressure PARmin=0 of minimum power input Pmin=90.2 in Fig. 7；Maximal input Pmax=
128.6 corresponding static pressure PARmax=40, rotor position measurement circuit, bus current detection circuit, busbar voltage detection circuit
Signal is sent to systematic microprocessor, obtains current revolving speed n0 and real-time input power P0 in real time；The above parameter is substituted into
Above-mentioned formula obtains the current static pressure PAR inside current ventilation shaft.
A kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment of the invention, it is characterised in that: institute
The control method stated includes the following 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 current ventilation shaft of motor real time execution parameter estimation
PAR；
C) current static pressure PAR is calculated real-time static pressure percentage divided by design maximum static pressure PARmax by systematic microprocessor
Than；
D) systematic microprocessor shows real-time static pressure percentage using display device, to indicate the blocking journey of ventilation shaft
Degree.
As shown in figure 8, display device is made of multiple LED diodes, by real-time static pressure percentage 0%-100% model
It is divided into multistage in enclosing to cooperate multiple LED diode operations.Can using real-time static pressure percentage in 0%-20% as the first order,
Using real-time static pressure percentage in 20%-40% as the second level, using real-time static pressure percentage in 40%-60% as the third level,
Using real-time static pressure percentage in 6%-80% as the fourth stage, using real-time static pressure percentage in 80%-100% as level V,
The static pressure percentage of the first order corresponds to all LED diodes and does not all work, corresponding first LED bis- of the static pressure percentage of the second level
Pole pipe is glittering, and the corresponding first LED diode of static pressure percentage of the third level and second LED diode are all glittering, the fourth stage
The corresponding first LED diode of static pressure percentage, second LED diode and third LED diode it is all glittering, level V
Static pressure percentage corresponding first LED diode, second LED diode, third LED diode, the 4th bis- pole LED
It is all glittering.
Embodiment two:
As shown in Fig. 9, Figure 10, Figure 11, smoke exhaust ventilator of the invention include ventilation shaft, motor, wind wheel, power unit,
Display device and system controller, system controller is with the main control wiring board for realizing electrical equipment function itself, main control
Systematic microprocessor is set on wiring board, in which: the motor includes electric machine controller and motor monomer, and motor monomer includes
Shaft, permanent magnet rotor component, stator module and case component, install permanent magnet in permanent magnet rotor component, permanent magnet rotor component and
Stator module forms magnetic coupling, and stator module includes stator core and the coil windings on stator core；The electricity
Layout has motor microprocessor, inverter circuit and motor operating parameter detection circuit, operational parameter detection circuit on machine controller
Motor real time execution parameter is input to motor microprocessor, the output end of motor microprocessor controls inverter circuit, inversion electricity
The output end on road is connect with coil windings；Motor microprocessor is connect with systematic microprocessor to be in communication with each other.
For motor by electric machine controller 2 and motor monomer 1, the motor monomer 1 includes stator module 12, rotor assembly 13
With case component 11, stator module 13 is mounted on case component 11, and the Hall that motor monomer 1 is equipped with detection rotor-position passes
Sensor 14, rotor assembly 13 are sleeved on inside or the outside composition of stator module 12, and electric machine controller 2 includes control 22 He of box
It is mounted on the control circuit board 21 of 22 the inside of control box, control circuit board 21 generally comprises motor microprocessor, bus current inspection
Slowdown monitoring circuit, busbar voltage detection circuit, inverter circuit and rotor position measurement circuit 14 (i.e. Hall sensor), rotor-position are surveyed
Amount circuit detection rotor-position signal is simultaneously input to motor microprocessor, and the bus circuit that bus current detection circuit will test is defeated
Enter to motor microprocessor, DC bus-bar voltage is input to motor microprocessor, motor micro process by busbar voltage detection circuit
Device controls inverter circuit, and inverter circuit controls the power on/off of each phase coil winding of stator module 12.
The ventilation shaft chocking-up degree real-time display control method of smoke exhaust ventilator of the present invention, it is characterised in that: the control
Method processed includes the following 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 current ventilation shaft of motor real time execution parameter estimation
PAR；
C) current static pressure PAR is calculated real-time static pressure percentage divided by design maximum static pressure PARmax by motor microprocessor
Than；
D) real-time static pressure percentage is sent to systematic microprocessor by motor microprocessor, and systematic microprocessor utilizes display dress
The real-time static pressure percentage of display is set, to indicate the chocking-up degree of ventilation shaft.
Above-mentioned display device is made of multiple LED diodes, and real-time static pressure percentage is divided in the range of 0%-100%
At multistage to cooperate multiple LED diode operations, the static pressure percentage of the first order corresponds to all LED diodes and does not all work, the
The corresponding first LED diode of the static pressure percentage of second level is glittering, the corresponding first LED diode of the static pressure percentage of the third level
It is all glittering with second LED diode, the static pressure percentage of the fourth stage corresponding first LED diode, second LED diode
It is all glittering with third LED diode, the static pressure percentage of level V corresponding first LED diode, second bis- pole LED
Pipe, third LED diode, the 4th bis- pole LED are all glittering.
Assuming that establishing permanent wind amount control unit in motor microprocessor, the control letter of permanent wind amount is arranged in permanent wind amount control unit
Number P=f (n), wherein P is power input to machine, and n is motor operation revolving speed, and the control function P=f (n) of permanent wind amount is to obtain in this way
: initial data is first acquired, if adjusting always from low static pressure to high static pressure, this static pressure is wanted at least one target air volume
The practical static pressure range that application can be covered allows motor to be in constant speed control, and by adjusting electricity during regulating static
It is target air volume that the machine revolving speed n and real-time input power Pi of motor, which keeps air quantity, and records motor steady-state speed n at this time and correspondence
The real-time input power Pi of motor and decompression data PAR, in this way, for certain dry target air volume, all produce one group of revolving speed n and
The real-time input power Pi of motor, then generates each target air volume pair in several target air volumes by the method for curve matching
Answer a function P=f (n).
Assuming that the minimum power input Pmin of permanent wind amount control unit corresponding static pressure PARmin, maximal input Pmax
Corresponding static pressure PARmax, according to the detection parameters for being currently operating in permanent wind amount: real-time input power P0 calculates current static pressure
Value PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)
Signal is sent to the micro- place of motor by rotor position measurement circuit, bus current detection circuit, busbar voltage detection circuit
Device is managed, current revolving speed n0 and real-time input power P0 in real time is obtained；The above parameter is substituted into above-mentioned formula, is currently led to
Current static pressure PAR inside air piping.
Claims (8)
1. a kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment, it is characterised in that: the controlling party
Method includes the following steps:
A) motor real time execution parameter is input to microprocessor by operational parameter detection circuit, and microprocessor has a permanent wind amount
Control unit, according to the gear air quantity Q that user selects, microprocessor driven motor and wind wheel rotation suck ventilation shaft
Or the air quantity of output is kept constant, the control function P=f (n) of permanent wind amount is arranged in permanent wind amount control unit, and wherein P is motor
Input power, n are motor operation revolving speeds；
B) microprocessor is according to the current static pressure PAR inside the current ventilation shaft of motor real time execution parameter estimation, permanent wind amount
The minimum power input Pmin of the control unit corresponding static pressure PARmax of corresponding static pressure PARmin, maximal input Pmax,
According to the detection parameters for being currently operating in permanent wind amount: real-time input power P0 calculates current static pressure PAR:
PAR=(P0-Pmin) ÷ (Pmax-Pmin) × (PARmax-PARmin)；
C) current static pressure PAR is calculated real-time static pressure percentage divided by design maximum static pressure PARmax by microprocessor；
D) microprocessor shows real-time static pressure percentage using display device, to indicate the chocking-up degree of ventilation shaft.
2. a kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment according to claim 1, special
Sign is: display device is made of multiple LED diodes, real-time static pressure percentage is divided into the range of 0%-100% more
Grade is to cooperate multiple LED diode operations.
3. a kind of ventilation shaft chocking-up degree real-time display control method of electrical equipment according to claim 2, special
Sign is: the static pressure percentage of the first order corresponds to all LED diodes and does not all work, the static pressure percentage corresponding first of the second level
A LED diode is glittering, and the corresponding first LED diode of static pressure percentage of the third level and second LED diode are all glittering,
The corresponding first LED diode of the static pressure percentage of the fourth stage, second LED diode and third LED diode are all glittering,
The static pressure percentage of level V corresponding first LED diode, second LED diode, third LED diode, the 4th
LED diode is all glittering.
4. a kind of ventilation shaft chocking-up degree real-time display controlling party of electrical equipment according to claim 1 or 2 or 3
Method, it is characterised in that: the electrical equipment is range hood or pipeline air-conditioning.
5. a kind of ventilation shaft chocking-up degree real-time display controlling party of electrical equipment according to claim 1 or 2 or 3
Method, it is characterised in that: permanent wind amount control function relational expression P=f (n) is second order function: P=C1+C2×n+C3×n2。
6. a kind of ventilation shaft chocking-up degree real-time display controlling party of electrical equipment according to claim 1 or 2 or 3
Method, it is characterised in that: what the control function P=f (n) of permanent wind amount was obtained by: initial data is first acquired, at least one
Target air volume is adjusted always from low static pressure to high static pressure, this static pressure wants the practical static pressure range that can cover application, quiet adjusting
During pressure, motor is allowed to be in constant speed control, and keep wind by adjusting motor speed n and the real-time input power Pi of motor
Amount is target air volume, and records motor steady-state speed n at this time and the real-time input power Pi of corresponding motor and static pressure data
PAR produces one group of revolving speed n and the real-time input power Pi of motor, then passes through song in this way, being directed to several target air volumes
The method of line fitting generates each target air volume in several target air volumes and corresponds to a function P=f (n).
7. a kind of ventilation shaft chocking-up degree real-time display controlling party of electrical equipment according to claim 1 or 2 or 3
Method, it is characterised in that: the electrical equipment includes ventilation shaft, motor, wind wheel, power unit, display device and system control
Device processed, system controller is with the main control wiring board for realizing electrical equipment function itself, main control wiring board driving motor band
Dynamic wind wheel rotation, the rotation of wind wheel drive the air flowing of ventilation shaft, in which: the motor is one without motor control
The motor monomer of device, including shaft, permanent magnet rotor component, stator module and case component install permanent magnetism in permanent magnet rotor component
Body, permanent magnet rotor component and stator module form magnetic coupling, and stator module includes stator core and on stator core
Coil windings；Layout has systematic microprocessor, inverter circuit and motor operating parameter detection electricity on the main control wiring board
Motor real time execution parameter is input to systematic microprocessor, the output end of systematic microprocessor by road, operational parameter detection circuit
Inverter circuit is controlled, the output end of inverter circuit is connect with coil windings；The step A, step B, step C, described in step D
Microprocessor refer to systematic microprocessor.
8. a kind of ventilation shaft chocking-up degree real-time display controlling party of electrical equipment according to claim 1 or 2 or 3
Method, it is characterised in that: the electrical equipment includes ventilation shaft, motor, wind wheel, power unit, display device and system control
Device processed, system controller have the main control wiring board for realizing electrical equipment function itself, system are arranged on main control wiring board
Microprocessor, in which: the motor includes electric machine controller and motor monomer, and motor monomer includes shaft, p-m rotor group
Part, stator module and case component, permanent magnet is installed in permanent magnet rotor component, and permanent magnet rotor component and stator module form magnetic lotus root
It closes, stator module includes stator core and the coil windings on stator core；There is layout on the electric machine controller
Motor microprocessor, inverter circuit and motor operating parameter detection circuit, operational parameter detection circuit join motor real time execution
Number is input to motor microprocessor, and the output end of motor microprocessor controls inverter circuit, the output end and coil of inverter circuit
Winding connection；Motor microprocessor is connect with systematic microprocessor to be in communication with each other, the step A, step B, step C, step D
The microprocessor refers to motor microprocessor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152342.XA CN106154871B (en) | 2015-03-31 | 2015-03-31 | A real-time display control method for the blockage degree of ventilation ducts 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152342.XA CN106154871B (en) | 2015-03-31 | 2015-03-31 | A real-time display control method for the blockage degree of ventilation ducts of electrical equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN106154871A CN106154871A (en) | 2016-11-23 |
| CN106154871B true CN106154871B (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510152342.XA Active CN106154871B (en) | 2015-03-31 | 2015-03-31 | A real-time display control method for the blockage degree of ventilation ducts of electrical equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106154871B (en) |
| WO (1) | WO2016155270A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044671B (en) * | 2017-03-24 | 2023-09-12 | 欧派家居集团股份有限公司 | Pressure sensing speed increasing control method, high static pressure fan system and range hood |
| 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 |
| CN112168065B (en) * | 2020-09-29 | 2023-04-28 | 追觅创新科技(苏州)有限公司 | Method, device, apparatus and storage medium for determining blockage of air duct in cleaning equipment |
| 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 |
| CN115508630B (en) * | 2021-06-23 | 2025-02-18 | 芜湖美的智能厨电制造有限公司 | Range hood detection method, device and range hood |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106154871A (en) | 2016-11-23 |
| WO2016155270A1 (en) | 2016-10-06 |
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