CN106705392A - Air conditioner and motor stalling detection device and door panel control system thereof - Google Patents
Air conditioner and motor stalling detection device and door panel control system thereof Download PDFInfo
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- CN106705392A CN106705392A CN201710008092.1A CN201710008092A CN106705392A CN 106705392 A CN106705392 A CN 106705392A CN 201710008092 A CN201710008092 A CN 201710008092A CN 106705392 A CN106705392 A CN 106705392A
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- magnet ring
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a motor stalling detection device of an air conditioner. The motor stalling detection device comprises a magnetic ring, x Hall detection modules and a control unit. The magnetic ring is fixed to a rotating assembly of a motor; and a magnetized face of the magnetic ring is full of P N-magnetic-poles and Q S-magnetic-poles, wherein P and Q are integers greater than one. The x Hall detection modules are arranged to be close to the magnetic ring; and when the rotating assembly of the motor rotates, the x Hall detection modules induct magnetic pole change of the magnetic ring so that x induction signals can be generated correspondingly, and x is an integer greater than one. The control unit is connected with the x Hall detection modules and judges the state of the motor according to the x induction signals, and thus whether the motor is stalled or not can be effectively judged; and in addition, by means of the magnetic ring and the multiple Hall detection modules, detection time can be shortened, and detection sensitivity can be enhanced. In addition, the motor stalling detection device is small in occupied space, low in cost, convenient to mount, long in service life, stable and reliable. The invention further discloses a door panel control system of the air conditioner and the air conditioner.
Description
Technical field
The present invention relates to air-conditioner technical field, motor rotation blockage detection means, the Yi Zhongkong of more particularly to a kind of air-conditioner
Adjust the door-plate control system and a kind of air-conditioner of device.
Background technology
As the popularization and each product of intelligent automation are to quality and pursuit attractive in appearance, household electrical appliance such as cabinet air-conditioner
In, it is increasing to use slide switch door gear, the actuating unit of such sliding door to be generally motor.In motor operation course
In, in the event of stall, then now mechanism is in interference state, so can be to motor in itself and electrical equipment causes damage.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention
One purpose is the motor rotation blockage detection means for proposing a kind of air-conditioner, can effective detection motor whether stall, and detection
Sensitivity is high.
It is another object of the present invention to the door-plate control system for proposing a kind of air-conditioner.A further object of the present invention
It is to propose a kind of air-conditioner.Another object of the present invention is to propose a kind of air-conditioner.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of motor rotation blockage detection means of air-conditioner,
Including：Magnet ring, the magnet ring is fixed on the runner assembly of motor, and P N magnetic pole and Q S are full of on the face of magnetizing of the magnet ring
Magnetic pole, wherein, P, Q are the integer more than 1；X Hall detection components, the x Hall detection components are consolidated near the magnet ring
It is fixed to set, the x Hall detection components sense in the runner assembly rotation of the motor pole change of the magnet ring with
Correspondence generation x road feel induction signals, x is the integer more than 1；Control unit, described control unit and the x Hall detection components
It is connected, described control unit judges the state of the motor according to the x induced signal.
The motor rotation blockage detection means of the air-conditioner for proposing according to embodiments of the present invention, is existed by x Hall detection components
The pole change of reaction magnetic ring is with correspondence generation x road feel induction signals when the runner assembly of motor is rotated, and then control unit is according to x
Individual induced signal judges the state of motor such that it is able to effectively judge whether motor occurs stall, in order to take corresponding in time
Rotation of the measure to motor is adjusted, it is to avoid mechanism is damaged, and can be shortened with multiple Hall detection components by magnet ring
Detection time, lifts detection sensitivity.Also, the device occupies little space, it is with low cost, be easily installed, it is long service life, steady
It is fixed reliable.
In addition, motor rotation blockage detection means according to the above embodiment of the present invention can also have following additional technology special
Levy：
According to one embodiment of present invention, the runner assembly of the motor is travelling gear or drive shaft.
According to one embodiment of present invention, the centre of the magnet ring is provided with fixing hole, with by the fixing hole and institute
State the runner assembly riveted of motor.
According to one embodiment of present invention, the face of magnetizing of the magnet ring is for magnet ring peripheral side or magnet ring internal end surface.
According to one embodiment of present invention, the quantity of the N magnetic poles and the S magnetic poles is equal, and the equal institute of quantity
State N magnetic poles and the S magnetic poles interval setting one by one.
According to one embodiment of present invention, the P N magnetic poles and the Q S magnetic poles are set in wide mode.
According to one embodiment of present invention, the x Hall detection components are according to the N magnetic poles and the S magnetic poles
Number sum staggers predetermined angle.
According to one embodiment of present invention, the predetermined angle is determined according to below equation：
D=360 °/(P+Q)/x+n*2*360 °/(P+Q)
Wherein, d is the predetermined angle, and P is the number of the N magnetic poles, and Q is the number of the S magnetic poles, x for it is described suddenly
The number of your detection components, n is any positive integer.
According to one embodiment of present invention, the power end of the x Hall detection components by first resistor with it is pre-
If power supply is connected, the earth terminal ground connection of the x Hall detection components, power end and the ground connection of the x Hall detection components
First electric capacity in parallel between end, wherein, the test side of each Hall detection components senses the pole change of the magnet ring, each
The output end of Hall detection components exports corresponding induced signal.
According to one embodiment of present invention, the motor rotation blockage detection means of described air-conditioner also includes x output electricity
Road, the x output circuit is connected with the output end of the x Hall detection components, and each output circuit includes：The of series connection
Two resistance and 3rd resistor, the second resistance of the series connection and one end of 3rd resistor are connected with the default power supply, the string
The second resistance of connection and the other end of 3rd resistor are connected with described control unit, the second resistance and 3rd resistor of the series connection
Between there are node, the node and corresponding Hall detection components output end be connected.
According to one embodiment of present invention, the Hall detection components are fixed in the air conditioner body.
According to one embodiment of present invention, the Hall detection components generate the first induced signal when just to N magnetic poles,
And the second induced signal is generated when just to S magnetic poles, the x road feels induction signal constructs the combination of y kinds level state, y>X, it is described
Control unit includes：Timer, the timer be used in the y kinds detection state combination of every kind of level state it is lasting when
Between carry out timing, and the reclocking when level state combination changes；Control chip, the control chip and the timing
Device is connected, and the control chip judges the electricity when the duration that any number of level state is combined preset time threshold is more than
Machine stall.
According to one embodiment of present invention, the quantity y of the level state combination is the quantity x of the induced signal
2 times.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of door-plate control system of air-conditioner, bag
Include；Motor, the motor is used to drive the door-plate of the air-conditioner；The motor rotation blockage detection means of described air-conditioner, it is described
The motor rotation blockage detection means of air-conditioner be used for detect the motor whether stall, to judge whether the door-plate runs into obstacle
Thing.
The door-plate control system of the air-conditioner for proposing according to embodiments of the present invention, can by above-mentioned motor rotation blockage detection means
Judge whether door-plate runs into barrier such that it is able to effectively judge whether door-plate runs into barrier, in order to take corresponding in time
The movement of measure end of door plate is adjusted, it is to avoid mechanism is damaged, and can be shortened with multiple Hall detection components by magnet ring
Detection time, lifts detection sensitivity, prevents from damaging user and for example clamps finger etc., lifts the experience of user.Also,
The device occupies little space, it is with low cost, be easily installed, it is long service life, reliable and stable.
To reach above-mentioned purpose, another aspect of the invention embodiment proposes a kind of air-conditioner, including described air-conditioner
Motor rotation blockage detection means.
The air-conditioner for proposing according to embodiments of the present invention, by above-mentioned motor rotation blockage detection means, can effectively judge
Whether motor there is stall, and detection sensitivity is high, occupy little space, it is with low cost, be easily installed, long service life, stabilization
It is reliable.
To reach above-mentioned purpose, further aspect of the present invention embodiment proposes a kind of air-conditioner, including described air-conditioner
Door-plate control system.
Whether the air-conditioner for proposing according to embodiments of the present invention, by above-mentioned door-plate control system, effectively judge door-plate
Run into barrier, and detection sensitivity is high, occupy little space, it is with low cost, be easily installed, it is long service life, reliable and stable, prevent
Only user is damaged and for example clamp finger etc., lift the experience of user.
Brief description of the drawings
Fig. 1 is the block diagram of the motor rotation blockage detection means of air-conditioner according to embodiments of the present invention；
Fig. 2 is the structural representation of magnet ring according to an embodiment of the invention, wherein, magnet ring is magnetized using side；
Fig. 3 is the structural representation of magnet ring according to an embodiment of the invention, wherein, magnet ring is magnetized using end face；
Fig. 4 is the structural representation of the motor rotation blockage detection means of air-conditioner according to an embodiment of the invention, wherein,
Magnet ring is magnetized using side；
Fig. 5 is the structural representation of the motor rotation blockage detection means of air-conditioner according to an embodiment of the invention, wherein,
Magnet ring is magnetized using end face；
Fig. 6 is the block diagram of the motor rotation blockage detection means of air-conditioner according to an embodiment of the invention；
Fig. 7 is the waveform diagram of the induced signal of Hall detection components output according to an embodiment of the invention, its
In, there is no stall in motor；
Fig. 8 is the waveform diagram of the induced signal of Hall detection components output according to an embodiment of the invention, its
In, there is stall at the t1 moment in motor；
Fig. 9 is the circuit theory diagrams of Hall detection components according to an embodiment of the invention；
Figure 10 is the block diagram of the door-plate control system of air-conditioner according to embodiments of the present invention；
Figure 11 is the schematic diagram of the door-plate of air-conditioner according to an embodiment of the invention；
Figure 12 is the schematic diagram of the installation site of motor according to an embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The motor rotation blockage detection means of air-conditioner, the door-plate control system of air-conditioner and sky in the description embodiment of the present invention
Before adjusting device, the door-plate occlusion detection technology in correlation technique is simply introduced first.
Correlation technique discloses a kind of door-plate occlusion detection device, i.e., install gratings strips additional on slidable door-plate, and
Gratings strips both sides install luminous tube and light-receiving tube additional respectively, and height electricity is produced by the interval translucency of gratings strips during door-plate proper motion
Flat pulse feedback signal, retardance can be monitored whether by the detection to high level or low duration.But, applicant
It was found that, its problem for existing is that this apparatus structure is complicated, need to install device additional in grating both sides, and difficulty is larger, and grating is with door-plate also
Need certain interval.Further, since using photovoltaic principals, to avoid the multiple factors such as ambient light interference so that the printing opacity of grating
Can not be excessively narrow and small with shading gap, so caused adverse consequences is to lengthen the low and high level duration of feedback pulse, from
And the detection time for blocking is lengthened, detection sensitivity reduction, meeting last very long of keenly feeling if finger is clamped makes user difficult
To receive.
Correlation technique also discloses a kind of door-plate occlusion detection device, and it utilizes inductance with electric capacity antiresonant circuit in folder
Firmly cause the principle of parallel circuit impedance variations after barrier by inductance value changes, detected whether using impedance detection circuit
Barrier blocks sliding door.But, it has been found that its exist problem be, detect device service life it is limited and with
The elongated rear function of run time is likely to failure, because inductance used by parallel circuit is the sheet metal with Copper Foil cabling, inductance
Sheet deformation caused by barrier when value changes are derived from retardance, and when sliding door closure every time all sheet metal can seriously squeezed
Pressure, deformation, it is long this repeatedly, sheet metal can cause expendable deformation or thoroughly damage and make detection disabler.And, this
The scheme of kind detection device is only applicable to single sided switched door gear, it is impossible to for bilateral door opening/closing apparatus, because work can not be installed on
On dynamic sliding door, and it is only applicable to the retardance in door closing procedure, it is impossible to detect the retardance in door opening process.
Based on this, the embodiment of the present invention proposes a kind of motor rotation blockage detection means of new air-conditioner, the door of air-conditioner
Panel control system and air-conditioner.
Below with reference to the accompanying drawings motor rotation blockage detections of the 1-9 to describe the air-conditioner of one aspect of the present invention embodiment proposition is filled
Put.
As Figure 1-5, the motor rotation blockage detection means of the air-conditioner of the embodiment of the present invention includes：Magnet ring 10, x Hall
Detection components 20 and control unit 30.
Wherein, magnet ring 10 is fixed on the runner assembly of motor, and P N magnetic pole and Q S are full of on the face of magnetizing of magnet ring 10
Magnetic pole, wherein, P, Q are the integer more than 1；X Hall detection components 20 are fixedly installed near magnet ring 10, x Hall detection group
With correspondence generation x road feel induction signals, x is more than 1 to the pole change of the reaction magnetic ring 10 when the runner assembly of motor is rotated of part 20
Integer；Control unit 30 is connected with x Hall detection components 20, and control unit 30 judges motor according to x induced signal
State.
It should be noted that x Hall detection components 20 can correspond to the face setting of magnetizing of magnet ring 10, and x Hall is examined
Surveying component 20 can be close to magnet ring 10 but not contact, in the range of the magnetic field induction of magnet ring 10.
Specifically, when motor is rotated, magnet ring 10 is rotated with motor, and x Hall detection components 20 are maintained static,
The N magnetic poles magnetized on face and S magnetic poles of magnet ring 10 pass sequentially through each Hall detection components 20, and x Hall detection components 20 are felt
The pole change of magnet ring 10 is answered so as to export x road feels induction signal such as low and high level pulse train, when motor is according to preset rotation speed
The x road feels induction signal exported during rotation will meet corresponding rule, and x Hall detection components 20 are felt when motor stops rotation
The magnetic pole answered will keep constant, and x road feel induction signals will be unable to meet corresponding rule, and thus, control unit 30 is according to x sense
Induction signal judges the state of motor, and whether such as motor occurs stall.
According to one embodiment of present invention, motor can be stepper motor, and stepper motor can use opened loop control, and control is single
Whether unit 30 can occur stall by the structure detection stepper motor of magnet ring and multiple Hall detection components, prevent stepper motor from holding
It is continuous to be in interference state, prevent to motor in itself and product operation has a negative impact.
According to one embodiment of present invention, the runner assembly of motor is travelling gear or drive shaft.That is, magnet ring
10 can be fixed in the travelling gear of motor or drive shaft, so that, when motor is rotated, magnet ring 10 can concomitant rotation.
It should be noted that when motor drives the door-plate of air-conditioner, if through multiple travelling gears between motor and door-plate,
Magnet ring 10 can be preferably fixed to be close to the travelling gear at door-plate end.
Specifically, as shown in Figure 2-5, the centre of magnet ring 10 is provided with fixing hole 101, with by fixing hole 101 and motor
Runner assembly riveted, so that can be with runner assembly synchronous axial system.That is, magnet ring 10 can be by fixing hole 101 and motor
Travelling gear or drive shaft riveted.In addition, magnet ring 10 also can directly make a part with travelling gear.
Also, according to one embodiment of present invention, Hall detection components 20 can be fixed in air conditioner body.Thus,
Integral installation is convenient, it is to avoid bring routing problem.
Further, according to one embodiment of present invention, as shown in Figure 2-5, on magnet ring 10 N magnetic poles and S magnetic poles number
Measure equal, i.e. P=Q, and the equal N magnetic poles of quantity and S magnetic poles interval setting one by one.
That is, can be spaced on circular magnetic loop 10 full of N magnetic poles and S magnetic poles, when motor is rotated, N magnetic poles and S magnetic
Pole can will export right alternately across each Hall detection components 20, each Hall detection components 20 according to the pole change for sensing
The induced signal answered.
Also, according to one embodiment of present invention, P N magnetic pole and Q S magnetic pole can be set in wide mode, that is,
Say, the width of each the N magnetic pole on magnet ring 10 and each S magnetic pole is equal.
It should be noted that the width of N magnetic poles and S magnetic poles is more narrow better on the premise of magnetic field intensity is ensured, for example may be used
Accomplish 1-2 millimeters, depending on sensed parameter of the magnetic field intensity requirement according to Hall detection components 20.Magnetic pole on magnet ring 10 is N magnetic
Pole is alternate with S magnetic poles, and N magnetic poles are related with the size of magnet ring 10 to the total number of S magnetic poles, and the size of magnet ring 10 is bigger, N magnetic poles with
The total number of S magnetic poles is more, and detection sensitivity is higher.
According to one embodiment of present invention, Hall detection components 20 can be corresponding according to the magnetic pole type generation for sensing
Induced signal, i.e. Hall detection components 20 generate the first induced signal when just to N magnetic poles, and is generated when just to S magnetic poles
Two induced signals, such as the first induced signal can be low level for high level and the second induced signal, and the first induced signal can
For low level and the second induced signal can be high level, the level state of the first induced signal and the second induced signal can be according to suddenly
The type of your detection components 20 determines.
So, when N magnetic poles and S magnetic poles are alternately across Hall detection components 20, Hall detection components 20 will export stabilization
Low and high level pulse train, and x roads low and high level pulse train cycle fix and identical, dutycycle be 50%.
Thus, the N magnetic poles and S magnetic poles on magnet ring 10 can accomplish very intensive (magnet pole widths can accomplish 1-2mm), sensitivity
Height, can improve the frequency of feedback pulse, so as to shorten detection time, improve detection sensitivity.And, based on Hall effect
Should, it is reliable and stable, low, impulse waveform stabilization is disturbed, low and high level saltus step is rapid.
A specific embodiment of the invention, as shown in Figure 2-5, the face of magnetizing of magnet ring 10 for magnet ring peripheral side or
Magnet ring internal end surface.That is, magnet ring 10 has, side is magnetized and end face magnetizes two kinds of forms, is as shown in Figure 2 and Figure 4 side
Magnetize, N magnetic poles and S pole piece spacings can be full of the periphery of magnet ring 10, wherein, in such as Fig. 2 and Fig. 4, left side is top view, right
Side is front view；As shown in Figure 3 and Figure 5 for end face magnetizes, can be by the end face of N magnetic poles and S pole piece spacings full of magnet ring 10.At this
In inventive embodiments, preferable end face magnetizes, from thinner, the material-saving that can be done magnet ring 10, reduces cost.
According to one embodiment of present invention, such as Hall sensor of Hall detection components 20 can use paster and plug-in type
Two kinds of packing forms, Hall detection components 20 are each attached to be fixed in air conditioner main body on pcb board and by pcb board, positioned at magnetic
The side of ring 10, near magnet ring but noncontact, can be in induction range in magnetic field.
Wherein, as shown in figure 5, the magnet ring 10 that the Hall detection components 20 of patch-type can magnetize with end face is engaged；Such as Fig. 4
Shown, the magnet ring 10 that the Hall detection components 20 of plug-in type can magnetize with side is engaged.In embodiments of the present invention, preferably
The Hall detection components 20 of patch-type, because in manufacture craft, patch-type positioning is more accurate, so that detection error can be reduced, and
Automated assembly can be easy to using patch-type, assembling speed is lifted.
According to one embodiment of present invention, x Hall detection components 20 can be according to N magnetic poles and the number sum of S magnetic poles
Stagger predetermined angle.Specifically, the predetermined angle that staggers between two adjacent Hall detection components 20 can be made.
That is, x Hall detection components 20 can stagger arrangement distribution, the x magnetic of the matching magnet ring 10 of Hall detection components 20
The width of pole total number and each magnetic pole staggers predetermined angle, so that the x road feels that x Hall detection components 20 are exported respectively should be believed
Number stagger successively preset phase angle, so that, detection sensitivity is lifted at double.As illustrated in figures 4-5, with three Hall detection components 20
As a example by, stagger predetermined angle between the Hall detection components 20A on the left side and the Hall detection components 20B of centre, and centre is suddenly
Also stagger predetermined angle between your the detection components 20B and Hall detection components 20C on the right, also, is turned clockwise with magnet ring 10
As a example by dynamic, the Hall detection components 20A preset phases on the delayed left side of induced signal that middle Hall detection components 20B is exported
Angle, the Hall detection components 20B preset phases angle of the delayed centre of induced signal of the Hall detection components 20C outputs on the right.
Specifically, predetermined angle can be determined according to below equation：
D=360 °/(P+Q)/x+n*2*360 °/(P+Q)
Wherein, d is predetermined angle, and P is the number of N magnetic poles, and Q is the number of S magnetic poles, and x is the number of Hall detection components,
N is any positive integer.
It should be noted that n is the arbitrary integer more than or equal to 1, as long as the determination of concrete numerical value meets Hall detection group
Part 20 will not spatially be interfered in arrangement.
Specifically, with the magnetic pole total number P+Q=24 of magnet ring 10, as a example by the number x=3 of Hall detection components 20, n takes 1,
Calculating predetermined angle can obtain d=35 °, i.e., stagger 35 ° between two neighboring Hall detection components 20.More specifically, as Fig. 4-5 institute
Show, stagger 35 ° between the Hall detection components 20A on the left side and the Hall detection components 20B of centre, and centre Hall detection group
Also stagger 35 ° between part 20B and the Hall detection components 20C on the right, it is correspondingly, middle when magnet ring 10 is rotated clockwise
The induced signal of Hall detection components 20B outputs is delayed relative to the induced signal that the Hall detection components 20A on the left side is exported
60 °, the induced signal of the Hall detection components 20C outputs on the right is relative to the sensing that middle Hall detection components 20B is exported
60 ° of signal lag.
According to one embodiment of present invention, Hall detection components 20 generate the first induced signal when just to N magnetic poles, and
The second induced signal is generated when just to S magnetic poles, x road feel induction signals construct the combination of y kinds level state, y>x.Wherein, according to
One embodiment of the present of invention, the quantity y of level state combination can be 2 times of the quantity x of induced signal, i.e. y=2x.
As shown in fig. 6, control unit 30 includes：Timer 301 and control chip 302.
Wherein, timer 301 is used to carry out timing to the duration of every kind of level state combination in y kind detection states,
And the reclocking when level state combination changes；Control chip 302 is connected with timer 301, control chip 302 also with
X Hall detection components 20 are connected, and control chip 302 is more than Preset Time threshold in the duration that any number of level state is combined
Motor rotation blockage is judged during value.
That is, the width of the magnetic pole total number of x Hall detection components 20 matching magnet ring 10 and each magnetic pole staggers
Predetermined angle, i.e., the x road feels induction signal that x Hall detection components 20 are exported respectively staggers preset phase angle successively, thus same
Moment can form different level state combinations.Control chip 302 is by detecting that the duration that each level state is combined is
It is no more than preset time threshold be can determine whether motor whether stall.Thus, stagger arrangement is distributed using multiple Hall detection components, can be entered
One step shortens detection time at double, can reach the effect for reducing detection time at double.
Specifically, when motor is rotated, the runner assembly of motor drives the synchronous axial system of magnet ring 10, x Hall detection group
Part 20 is maintained static, and the N magnetic poles and S magnetic poles on magnet ring 10 are alternately across x Hall detection components 20, x Hall detection components
20 produce the low and high level pulse train that dutycycle is 50% respectively.
Two neighboring Hall detection components 20 stagger according to d=360 ° of above-mentioned formula/(P+Q)/x+n*2*360 °/(P+Q)
Predetermined angle, correspondingly, two neighboring Hall detection components 20 can obtain differing the waveform at 180 °/x phase angles.Thus, it is possible to
A cycle in the waveform of every road is divided into the combination of 2x kinds level state, also, the duration tn that every kind of level state is combined
It is 1/x, the i.e. tn=1/r/p/x of the duration of the high level state or low level state of any road signal, wherein, r is magnetic
The rotating speed of ring 10, when magnet ring is arranged on travelling gear, the rotating speed of magnet ring 10 can be according to the rotating speed of motor and gear transmission velocity ratio
It is calculated, when motor is stepper motor and magnet ring is arranged on drive shaft, the rotating speed of magnet ring 10 can be according to step angle and driving
Pulse period is calculated.Thus, stagger arrangement is distributed using multiple Hall detection components, further can at double shortens detection time,
Detection time can be reduced how many times for example with how many Hall sensors.
As shown in fig. 7, with x=3, as a example by d=35 °, three Hall detection components 20 are exportable respectively to lag 60 ° of phase angles
60 ° delayed relative to the output waveform of Hall detection components 20A of three road waveforms, the i.e. output waveform of Hall detection components 20B, suddenly
60 ° delayed relative to the output waveform of Hall detection components 20B of the induced signal of output of your detection components 20C.Thus, it is possible to handle
A cycle is divided into six kinds of level states combinations in per road waveform, i.e., six kinds level state combinations are respectively 100,110,111,
011st, 001,000, wherein, 1 represents high level, and 0 represents low level, also, the duration tn of every kind of level state combination is
The high level of any road signal or the 1/3, tn=1/r/p/3 of the duration of low level state, wherein r turning for magnet ring 10
Speed, so that detection sensitivity improves three times.
When motor occurs stall and stops operating, each corresponding magnetic pole of Hall detection components 20 no longer changes, so
The output level of each Hall detection components 20 can be continuously high level or be continuously low level.As shown in figure 8, motor is in t1
There is stall and recover at the t2 moment in the moment, tn is the duration of every kind of level state combination when there is no stall, and td is pre-
If time threshold, when there is stall, the level state that three road waveforms remain current is constant, sentences when the duration td is more than
It is set to motor and stall occurs.Wherein, the span of preset time threshold td=k*tn, k is 1-4, preferably 1.5.
As described above, the embodiment of the present invention detection motor whether stall method it is as follows：
The open detection function of control chip 302 when motor is rotated, and control timer 301 to start timing, control chip
302 can gather the x induced signal of the output of Hall detection components 20, when any one road feel induction signal occurs low and high level saltus step
Control timer 301 resets, and control chip 302 can determine whether whether the clocking value of timer 301 is more than preset time threshold td, such as
The clocking value of fruit timer 301 is more than preset time threshold td, then judge that motor occurs stall, the output stall of control chip 302
Protection signal, with actuating motor protection act, such as controlled motor stops operating or rotates backward；If the meter of timer 301
Duration is less than or equal to preset time threshold td, then judge that motor does not occur stall, and control chip 302 can control motor and continue positive
Rotate.
In addition, a specific embodiment of the invention, as shown in figure 9, the power end of x Hall detection components 20 is equal
It is connected with default power supply VCC such as+5V by first resistor R1, the x earth terminal ground connection of Hall detection components 20, x Hall
First electric capacity C1 in parallel between the power end of detection components 20 and earth terminal, wherein, the detection of each Hall detection components 20
The output end of the pole change of reaction magnetic ring, each Hall detection components 20 is held to export corresponding induced signal.
Further, as shown in figure 9, the motor rotation blockage detection means of air-conditioner also includes x output circuit 40, x defeated
Go out circuit 40 to be connected with the output end of x Hall detection components 20, each output circuit 40 includes：The electricity of second resistance R2 and the 3rd
Resistance R3, second resistance R2 and 3rd resistor R3 are connected in series, one end of the second resistance R2 and 3rd resistor R3 of series connection with it is default
Power supply VCC is connected, and the other end and the control unit 30 of the second resistance R2 and 3rd resistor R3 of series connection are the phase of control chip 302
Even, there is node, the output of node and corresponding Hall detection components 20 between the second resistance R2 and 3rd resistor R3 of series connection
End is connected.
Wherein, second resistance R2 is pull-up resistor, and 3rd resistor R3 is current-limiting resistance.
That is, each Hall detection components 20 can power for 5V, so that each exportable width of Hall detection components 20
It is worth the low and high level pulse train for 5V, each low and high level pulse train is supplied to control unit by corresponding output circuit
30, control unit 30 can carry out timing to the duration of the level state of x roads low and high level pulse train combination, and pass through
Whether timing time there is stall with the multilevel iudge motor of preset time threshold.
To sum up, the motor rotation blockage detection means of the air-conditioner for proposing according to embodiments of the present invention, by x Hall detection group
The pole change of part reaction magnetic ring when the runner assembly of motor is rotated is with correspondence generation x road feel induction signals, and then control unit
The state of motor is judged according to x induced signal such that it is able to effectively judge whether motor occurs stall, in order to take in time
Rotation of the corresponding measure to motor is adjusted, it is to avoid mechanism is damaged, and can with multiple Hall detection components by magnet ring
Shorten detection time, lift detection sensitivity.Also, the device occupies little space, it is with low cost, be easily installed, service life
It is long, reliable and stable.
The door-plate control system of the air-conditioner of another aspect of the present invention embodiment proposition is described with reference to Figure 10-12.
Figure 10 is the block diagram of the door-plate control system of air-conditioner according to embodiments of the present invention.As Figure 10-12 institute
Show, the door-plate control system of air-conditioner includes；The motor rotation blockage detection means 200 of motor 100 and air-conditioner.
Wherein, motor 100 is used to drive the door-plate 300 of air-conditioner.Specifically, have slidably on the cabinet-type air conditioner of air-conditioner
Door-plate 300, when air-conditioner starts, the control device of air-conditioner can drive door-plate 300 open by motor 100, work as air-conditioning
The control device of air-conditioner can drive door-plate 300 to close by motor 100 when device is closed, so as to lift the aesthetics of product.Its
In, when door-plate 300 is one, door-plate 300 can be opened to side；When door-plate 300 is two, door-plate 300 can be opened to both sides.
A specific example of the invention, motor 100 can be stepper motor.
The motor rotation blockage detection means 200 of air-conditioner be used for detect motor 100 whether stall, whether to judge door-plate 300
Run into barrier.
Specifically, motor rotation blockage detection means 200 may include magnet ring, x Hall detection components and control unit.Magnet ring is consolidated
It is scheduled on the runner assembly of motor 100, P N magnetic pole and Q S magnetic pole is full of on the face of magnetizing of magnet ring, wherein, P, Q are more than 1
Integer；X Hall detection components are fixedly installed near magnet ring, for example, be fixedly installed in air conditioner body, x Hall inspection
The pole change of component reaction magnetic ring when the runner assembly of motor 100 is rotated is surveyed with correspondence generation x road feel induction signals, x is big
In 1 integer；Control unit judges the state of motor 100 according to x induced signal.
Based on this, when door-plate 300 is moved to enabling direction or direction of closing the door, the runner assembly of motor 100 drives magnet ring
Synchronous axial system, alternately across x Hall detection components, x Hall detection components are exported the N magnetic poles and S magnetic poles on magnet ring respectively
The low and high level pulse train of stabilization, dutycycle is 50%.
The magnetic pole total number of x Hall detection components matching magnet ring and the width of each magnetic pole stagger predetermined angle, i.e. x
The x road feels induction signal that Hall detection components are exported respectively staggers preset phase angle successively, thus synchronization can form different
Level state is combined.
When door-plate 300 blocks, for example, there is foreign matter to block door-plate 300 or finger is stretched in when wherein accidentally, motor 100
Stop operating, each corresponding magnetic pole of Hall detection components no longer changes, and the output level of each Hall detection components can continue
For high level or it is continuously low level.Control unit is by detecting whether the duration that each level state is combined exceedes in advance
If time threshold be can determine whether motor whether stall so that door-plate control system judges whether door-plate 300 runs into barrier.
Whether barrier is run into thereby, it is possible to effective detection door-plate 300, and shortens detection time, can quickly obtain door-plate
Retardance information, accomplish that slight touching can detect the effect for blocking, so as to take the motion of corresponding strategy end of door plate to enter in time
Row adjustment, it is to avoid cause to damage to mechanism, while improve user experience satisfaction.
To sum up, the door-plate control system of the air-conditioner for proposing according to embodiments of the present invention, is detected by above-mentioned motor rotation blockage
Device can determine whether whether door-plate runs into barrier such that it is able to effectively judge whether door-plate runs into barrier, in order to adopt in time
The movement for taking corresponding measure end of door plate is adjusted, it is to avoid mechanism is damaged, and by magnet ring and multiple Hall detection components
Detection time can be shortened, detection sensitivity is lifted, prevented from damaging user and for example clamped finger etc., lift the body of user
Test.Also, the device occupies little space, it is with low cost, be easily installed, it is long service life, reliable and stable.
Another aspect of the invention embodiment proposes a kind of air-conditioner, including the air-conditioner of above-described embodiment motor rotation blockage
Detection means.
The air-conditioner for proposing according to embodiments of the present invention, by above-mentioned motor rotation blockage detection means, can effectively judge
Whether motor there is stall, and detection sensitivity is high, occupy little space, it is with low cost, be easily installed, long service life, stabilization
It is reliable.
Further aspect of the present invention embodiment proposes a kind of air-conditioner, including the door-plate of the air-conditioner of above-described embodiment is controlled
System.
Whether the air-conditioner for proposing according to embodiments of the present invention, by above-mentioned door-plate control system, effectively judge door-plate
Run into barrier, and detection sensitivity is high, occupy little space, it is with low cost, be easily installed, it is long service life, reliable and stable, prevent
Only user is damaged and for example clamp finger etc., lift the experience of user.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (16)
1. the motor rotation blockage detection means of a kind of air-conditioner, it is characterised in that including：
Magnet ring, the magnet ring is fixed on the runner assembly of motor, and P N magnetic pole and Q S are full of on the face of magnetizing of the magnet ring
Magnetic pole, wherein, P, Q are the integer more than 1；
X Hall detection components, the x Hall detection components are fixedly installed near the magnet ring, the x Hall detection group
Part senses the pole change of the magnet ring when the runner assembly of the motor is rotated with correspondence generation x road feel induction signals, and x is big
In 1 integer；
Control unit, described control unit is connected with the x Hall detection components, and described control unit is according to described x sense
Induction signal judges the state of the motor.
2. the motor rotation blockage detection means of air-conditioner according to claim 1, it is characterised in that wherein, the motor
Runner assembly is travelling gear or drive shaft.
3. the motor rotation blockage detection means of air-conditioner according to claim 2, it is characterised in that wherein, the magnet ring
Centre is provided with fixing hole, with by the runner assembly riveted of the fixing hole and the motor.
4. the motor rotation blockage detection means of air-conditioner according to claim 2, it is characterised in that the face of magnetizing of the magnet ring
It is magnet ring peripheral side or magnet ring internal end surface.
5. the motor rotation blockage detection means of air-conditioner according to claim 1, it is characterised in that wherein, the N magnetic poles and
The quantity of the S magnetic poles is equal, and the equal N magnetic poles of quantity and the S magnetic poles interval setting one by one.
6. the motor rotation blockage detection means of air-conditioner according to claim 1, it is characterised in that the P N magnetic poles and institute
Q S magnetic pole is stated to be set in wide mode.
7. the motor rotation blockage detection means of air-conditioner according to claim 1, it is characterised in that the x Hall detection
Component staggers predetermined angle according to the number sum of the N magnetic poles and the S magnetic poles.
8. the motor rotation blockage detection means of air-conditioner according to claim 7, it is characterised in that determined according to below equation
The predetermined angle：
D=360 °/(P+Q)/x+n*2*360 °/(P+Q)
Wherein, d is the predetermined angle, and P is the number of the N magnetic poles, and Q is the number of the S magnetic poles, and x is examined for the Hall
The number of component is surveyed, n is any positive integer.
9. the motor rotation blockage detection means of air-conditioner according to claim 1, it is characterised in that the x Hall detection
The power end of component is connected by first resistor with default power supply, the earth terminal ground connection of the x Hall detection components, described
First electric capacity in parallel between the x power end of Hall detection components and earth terminal, wherein, the detection of each Hall detection components
The pole change of the end sensing magnet ring, the output end of each Hall detection components exports corresponding induced signal.
10. the motor rotation blockage detection means of air-conditioner according to claim 9, it is characterised in that also including x output electricity
Road, the x output circuit is connected with the output end of the x Hall detection components, and each output circuit includes：
The second resistance and 3rd resistor of series connection, the second resistance of the series connection and one end of 3rd resistor and the default power supply
It is connected, the second resistance of the series connection and the other end of 3rd resistor are connected with described control unit, the second electricity of the series connection
There is node, the node is connected with the output end of corresponding Hall detection components between resistance and 3rd resistor.
The motor rotation blockage detection means of 11. air-conditioners according to claim 1, it is characterised in that the Hall detection group
Part is fixed in the air conditioner body.
The motor rotation blockage detection means of 12. air-conditioners according to claim 1, it is characterised in that the Hall detection group
Part generates the first induced signal when just to N magnetic poles, and the second induced signal is generated when just to S magnetic poles, and the x road feels should be believed
Number construct the combination of y kinds level state, y>X, described control unit includes：
Timer, based on timer duration of every kind of level state combination in the y kinds detection state carries out
When, and the reclocking when level state combination changes；
Control chip, the control chip is connected with the timer, and the control chip is combined in any number of level state
Duration judges the motor rotation blockage when being more than preset time threshold.
The motor rotation blockage detection means of 13. air-conditioners according to claim 12, it is characterised in that wherein, the level
The quantity y of combinations of states is 2 times of the quantity x of the induced signal.
A kind of door-plate control system of 14. air-conditioners, it is characterised in that including；
Motor, the motor is used to drive the door-plate of the air-conditioner；
The motor rotation blockage detection means of the air-conditioner according to any one of claim 1-13, the motor of the air-conditioner is blocked up
Turn detection means for detect the motor whether stall, to judge whether the door-plate runs into barrier.
15. a kind of air-conditioners, it is characterised in that the motor including the air-conditioner according to any one of claim 1-13 is blocked up
Turn detection means.
A kind of 16. air-conditioners, it is characterised in that the door-plate control system including air-conditioner according to claim 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710008092.1A CN106705392B (en) | 2017-01-05 | 2017-01-05 | Air conditioner and motor locked rotor detection device and door plant control system thereof |
| PCT/CN2017/118012 WO2018126909A1 (en) | 2017-01-05 | 2017-12-22 | Air conditioner and detection control device and method for moving parts in air conditioner |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201710008092.1A CN106705392B (en) | 2017-01-05 | 2017-01-05 | Air conditioner and motor locked rotor detection device and door plant control system thereof |
Publications (2)
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| CN106705392A true CN106705392A (en) | 2017-05-24 |
| CN106705392B CN106705392B (en) | 2022-03-25 |
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| CN201710008092.1A Active CN106705392B (en) | 2017-01-05 | 2017-01-05 | Air conditioner and motor locked rotor detection device and door plant control system thereof |
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