CN106230338A - Control method and circuit of single-phase motor - Google Patents
Control method and circuit of single-phase motor Download PDFInfo
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- CN106230338A CN106230338A CN201610591896.4A CN201610591896A CN106230338A CN 106230338 A CN106230338 A CN 106230338A CN 201610591896 A CN201610591896 A CN 201610591896A CN 106230338 A CN106230338 A CN 106230338A
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- 238000005859 coupling reaction Methods 0.000 description 3
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/04—Single phase motors, e.g. capacitor motors
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- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a control method and a circuit of a single-phase motor. Wherein, the method comprises the following steps: acquiring the torque to be output of the single-phase motor; determining a torque range in which a torque to be output is located from a plurality of preset torque ranges of the single-phase motor, wherein each torque range corresponds to one winding and one control switch; and controlling the corresponding control switch to be closed according to the torque range of the torque to be output so as to enable the corresponding winding to be used as the working winding of the single-phase motor. The invention solves the technical problems of fixed working torque range of the single-phase motor and limited utilization rate and application range of the motor in the prior art.
Description
Technical field
The present invention relates to monophase machine field, in particular to control method and the circuit of a kind of monophase machine.
Background technology
Monophase machine refers to the little power single phase asynchronous motor powered with single phase alternating current power supply (AC220V), due to single-phase electricity
The output of machine is little, and the rotor of general monophase machine all uses cage rotor, and its stator has a set of Working winding,
Being referred to as main winding, it is in the air gap of monophase machine, just can only produce, the impulsive magnetic field of negative alternation, it is impossible to produce rotating excitation field,
Therefore, starting torque cannot also be produced.In order to make motor air gap can produce rotating excitation field, in addition it is also necessary to have set auxiliary around
Group, referred to as auxiliary winding, the magnetic field produced due to auxiliary winding and the magnetic field of main winding are closed friendship in motor air gap and are produced rotary magnetic
, now motor produces detent torque, and therefore, the rotor of monophase machine could rotate voluntarily.
But, the operation torque scope of current monophase machine is more fixing, as it is shown in figure 1, monophase machine includes main winding
R1, auxiliary winding R2 and start-up capacitance C, main winding R1 is Working winding, the torque that operation torque scope is provided by main winding R1
Scope.A set of winding scheme (including main winding and auxiliary winding) can only corresponding little scope torque output, the utilization of monophase machine
Rate and the scope of application compare limitation.
Fix for the operation torque scope of monophase machine in prior art, the utilization rate of motor and restricted application
Problem, the most not yet proposes effective solution.
Summary of the invention
Embodiments provide control method and the circuit of a kind of monophase machine, single at least to solve in prior art
The operation torque scope of phase motor is fixed, the utilization rate of motor and the technical problem of restricted application.
An aspect according to embodiments of the present invention, it is provided that the control method of a kind of monophase machine, including: obtain single-phase
The torque to be output of motor；From multiple torque ranges that monophase machine is preset, determine the torque range residing for torque to be output,
Wherein, the corresponding winding of each torque range and a control switch；According to the torque range residing for torque to be output, control
Corresponding control switch Guan Bi, so that the winding of correspondence is as the Working winding of monophase machine.
Another aspect according to embodiments of the present invention, additionally provides the control circuit of a kind of monophase machine, including: multiple around
Group, multiple winding parallels are at the two ends of alternating current power supply；Multiple control switchs, and each control switch series is associated in winding and the friendship of correspondence
Between stream power supply；Processor, for obtaining the torque to be output of monophase machine, the multiple torque ranges preset from monophase machine
In, determine the torque range residing for torque to be output, wherein, the corresponding winding of each torque range and a control switch；
Controller, controls switch with multiple and processor is connected, for according to the torque range residing for torque to be output, controlling correspondence
Control switch Guan Bi, so that the winding of correspondence is as the Working winding of monophase machine.
In embodiments of the present invention, the torque to be output of monophase machine can be obtained, multiple turns preset from monophase machine
In square scope, determine the torque range residing for torque to be output, and according to the torque range residing for torque to be output, control correspondence
Control switch Guan Bi so that the winding of correspondence is as the Working winding of monophase machine.It is easily noted that, multiple torque models
Enclose multiple windings of correspondence and control switch, by controlling different control switch Guan Bis, different winding conducts can be selected
Working winding, increases the torque output area of monophase machine, and the operation torque scope solving monophase machine in prior art is solid
Fixed, the utilization rate of motor and the technical problem of restricted application.Therefore, by the above embodiment of the present invention, can make same
Individual monophase machine is attained by optimum Working under multiple torques, improve the torque range of monophase machine, utilization rate and
Applicable performance, reduces energy resource consumption.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of monophase machine according to prior art；
Fig. 2 is the flow chart of the control method of a kind of monophase machine according to embodiments of the present invention；
Fig. 3 is the schematic diagram of the control circuit of a kind of optional monophase machine according to embodiments of the present invention；And
Fig. 4 is the schematic diagram of the control circuit of a kind of monophase machine according to embodiments of the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use
Data can exchange in the appropriate case, in order to embodiments of the invention described herein can with except here diagram or
Order beyond those described is implemented.Additionally, term " includes " and " having " and their any deformation, it is intended that cover
Cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product or equipment are not necessarily limited to
Those steps clearly listed or unit, but can include the most clearly listing or for these processes, method, product
Or intrinsic other step of equipment or unit.
Embodiment 1
According to embodiments of the present invention, it is provided that the embodiment of the method for the control method of a kind of monophase machine, explanation is needed
It is can to perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing,
And, although show logical order in flow charts, but in some cases, can perform with the order being different from herein
Shown or described step.
Fig. 2 is the flow chart of the control method of a kind of monophase machine according to embodiments of the present invention, as in figure 2 it is shown, the party
Method comprises the steps:
Step S202, obtains the torque to be output of monophase machine.
Concrete, above-mentioned torque to be output can be the torque that monophase machine is provided to load, at different operating ring
In border, the torque that load needs is different.
Step S204, from multiple torque ranges that monophase machine is preset, determines the torque range residing for torque to be output,
Wherein, the corresponding winding of each torque range and a control switch.
Concrete, above-mentioned multiple torque ranges can be provided by multiple windings, the corresponding winding of each torque range, no
Different with umber of turn, the number of turn of winding can need to be determined according to the working environment of monophase machine, and the present invention is to this not
Make concrete restriction.When monophase machine works, can only select from multiple windings a winding as Working winding, therefore, often
Individual windings in series one controls switch, is switched on-off by control and determines Working winding, further determines that turning of monophase machine
Square scope.
Optionally, in the above embodiment of the present invention, multiple torque ranges that monophase machine is preset may include that first turn
Square scope and the second torque range, monophase machine may include that the first winding and first that the first torque range is corresponding controls to open
Closing, the second winding and second that the second torque range is corresponding controls switch, and wherein, the number of turn of the first winding and the second winding is not
With.
Step S206, according to the torque range residing for torque to be output, controls corresponding control switch Guan Bi, so that corresponding
Winding as the Working winding of monophase machine.
Optionally, in the above embodiment of the present invention, after controlling corresponding control switch Guan Bi, monophase machine is permissible
Reach optimum Working.
In the optional scheme of one, after determining the torque range residing for the torque that load needs, it may be determined that make
For the winding of Working winding, and controlling the control switch Guan Bi with this windings in series, monophase machine is operated in this winding and is provided
Torque range in, monophase machine is operated in optimal power bracket, both can by load needed for torque, the most permissible
Ensure that input power is moderate, thus reach optimum Working.
Such as, as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.Single-phase electricity
Machine can include winding R1, winding R2, switch S1 and switch S2, and wherein, winding R1 is different with the number of turn of winding R2, winding R1 with
Winding R2 is connected in parallel on the two ends of alternating current power supply U, switch S1 and winding R1 series connection, switch S2 and winding R2 series connection.When winding R1 is
During main winding, winding R2 can be auxiliary winding；When winding R2 is main winding, winding R1 can be auxiliary winding, and therefore, this is single-phase
Motor can include double winding scheme, and double winding can provide different torque ranges, main winding R1 can provide first
Torque range, main winding R2 can provide the second torque range.After getting the torque that load needs, can be according to load
The torque needed determines the torque range residing for this torque, for example, it may be the second torque range, then controls switch S2 Guan Bi,
Winding R2 is as main winding, and winding R1 is as auxiliary winding.
By the above embodiment of the present invention, the torque to be output of monophase machine can be obtained, preset many from monophase machine
In individual torque range, determine the torque range residing for torque to be output, and according to the torque range residing for torque to be output, control
Corresponding control switch Guan Bi, so that the winding of correspondence is as the Working winding of monophase machine.It is easily noted that, Duo Gezhuan
Multiple windings and control that square scope is corresponding switch, and by controlling different control switch Guan Bis, can select different windings
As Working winding, increase the torque output area of monophase machine, solve the operation torque model of monophase machine in prior art
Enclose fixing, the utilization rate of motor and the technical problem of restricted application.Therefore, by the above embodiment of the present invention, can make
Same monophase machine is attained by optimum Working under multiple torques, improves the torque range of monophase machine, utilization rate
And applicable performance, reduce energy resource consumption.
Optionally, in the above embodiment of the present invention, step S206, according to the torque range residing for torque to be output, control
The control switch Guan Bi that system is corresponding, so that the winding of correspondence is as the Working winding of monophase machine, including:
Step S2062, in the case of the torque range residing for torque to be output is the first torque range, controls the first control
System switch Guan Bi, and control the second control and switch off, so that the first winding is as Working winding.
Step S2064, in the case of the torque range residing for torque to be output is the second torque range, controls the second control
System switch Guan Bi, and control the first control and switch off, so that the second winding is as Working winding.
Herein it should be noted that owing to needing a Working winding when monophase machine works, therefore, multiple control switchs
One can only be closed simultaneously, if multiple control switch simultaneously switches off, i.e. monophase machine non-cut-in operation winding, or multiple control
Switch processed is closed at, i.e. monophase machine accesses multiple Working windings, then monophase machine cannot normally start.
In the optional scheme of one, after determining that the torque range described in torque to be output is the first torque range,
May determine that and need the first winding as Working winding, such that it is able to control switch Guan Bi by first, and ensure the second control
Switch is off, and the first winding accesses monophase machine, and the torque output area of monophase machine is the first torque range；?
After determining that the torque range described in torque to be output is the first torque range, it may be determined that need the first winding as work
Winding, such that it is able to control switch Guan Bi by first, and ensures that the second control switch is off, and the first winding accesses single
Phase motor, the torque output area of monophase machine is the first torque range.
Such as, still as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.Obtaining
After getting the torque that load needs, can torque range residing for this torque, if the torque range residing for this torque is the
One torque range, can control to switch S1 Guan Bi, and switch S2 disconnects, and winding R1 is Working winding, and corresponding monophase machine is operated in
In the torque range that winding R1 is provided, monophase machine reaches optimum Working.If the torque range residing for this torque is
Second torque range, can control to switch S2 Guan Bi, and switch S1 disconnects, and winding R2 is Working winding, corresponding monophase machine work
In the torque range that winding R2 is provided, monophase machine reaches optimum Working.
Optionally, in the above embodiment of the present invention, step S204, determine the torque range bag residing for torque to be output
Include:
Step S2042, it is judged that whether torque to be output is in the first torque range.
Step S2044, if torque to be output is in the first torque range, it is determined that the torque that torque to be output is corresponding
Scope is the first torque range.
Step S2046, if torque to be output is not in the first torque range, then judges whether torque to be output is in
In second torque range.
Step S2048, if torque to be output is in the second torque range, it is determined that the torque that torque to be output is corresponding
Scope is the second torque range.
In the optional scheme of one, can be by the torque required for the load of the monophase machine got and the first torque
Scope and the second torque range compare, it is judged that the torque needed for load is in the first torque range or the second torque model
Enclose, can first the torque required for the load of monophase machine be compared with the first torque range, if monophase machine is negative
Within torque required for load is not in the first torque range, the most again by the torque required for the load of monophase machine with
Second torque range compares.
Optionally, in the above embodiment of the present invention, step S204, determine the torque range bag residing for torque to be output
Include:
Step S2041, it is judged that whether torque to be output is more than or equal to the first preset torque.
Step S2043, if torque to be output is more than or equal to the first preset torque, it is determined that corresponding the turning of torque to be output
Square scope is the first torque range.
Step S2045, if torque to be output is less than the first preset torque, then judges whether torque to be output is less than or equal to
Second preset torque.
Step S2047, if torque to be output is less than or equal to the second preset torque, it is determined that corresponding the turning of torque to be output
Square scope is the second torque range.
Concrete, above-mentioned first preset torque can be the minimum torque of the first torque range, above-mentioned second preset torque
Can be the torque capacity of the second preset range, the first torque range be more than the second torque range.
In the optional scheme of one, the minimum torque of bigger torque range can be obtained, and less torque range
Torque capacity, such as, bigger torque range is the first torque range, and less torque range is the second torque range, will load institute
The torque needed compares with minimum torque, it is judged that whether the torque needed for load is more than or equal to minimum torque, if it is, really
Torque needed for fixed load is in bigger torque range, is i.e. in the first torque range, if it is not, then turning needed for determining load
Square is not in bigger torque range, the torque needed for load is compared with torque capacity further, it is judged that needed for load
Whether torque is less than or equal to torque capacity, if it is, the torque needed for determining load is in less torque range, is i.e. in the
Two torque ranges.
Herein it should be noted that in the case of the working environment of monophase machine changes, such as, monophase machine
The first torque range that loading is provided from winding R1 changes to the second torque range that winding R2 is provided, then can disconnect out
Close S1, Guan Bi switch S2, Working winding is become winding R2 from winding R1.
Embodiment 2
According to embodiments of the present invention, the product embodiments of the control circuit of a kind of monophase machine is additionally provided.
Fig. 4 is the schematic diagram of the control circuit of a kind of monophase machine according to embodiments of the present invention, as shown in Figure 4, this electricity
Road includes:
Multiple windings 41, multiple windings 41 are connected in parallel on the two ends of alternating current power supply 40.
Multiple control switches 43, each switch 43 that controls is connected between corresponding winding 41 and alternating current power supply 40.
Optionally, in the above embodiment of the present invention, the multiple torque ranges preset at monophase machine include: the first torque
In the case of scope and the second torque range, multiple windings include: the first winding and the second winding, wherein, and the first winding and
One torque range is corresponding, and the second winding is corresponding with the second torque range, and the number of turn of the first winding and the second winding is different；Multiple controls
Switch processed includes: first controls switch and second controls switch, first control switch series be associated in the first winding and alternating current power supply it
Between, second controls switch series is associated between the second winding and alternating current power supply, and wherein, first controls switch and the first torque range pair
Should, the second control switch is corresponding with the second torque range.
Such as, as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.Single-phase electricity
Machine can include winding R1, winding R2, switch S1 and switch S2, and wherein, winding R1 and winding R2 is connected in parallel on the two of alternating current power supply U
End, winding R1 is different with the number of turn of winding R2, switch S1 and winding R1 series connection, switch S2 and winding R2 series connection.When winding R1 is
During main winding, winding R2 can be auxiliary winding；When winding R2 is main winding, winding R1 can be auxiliary winding, and therefore, this is single-phase
Motor can include double winding scheme, and double winding can provide different torque ranges, main winding R1 can provide first
Torque range, main winding R2 can provide the second torque range.After getting the torque that load needs, can be according to determining
Torque range residing for this torque, for example, it may be the second torque range, then controls switch S2 Guan Bi, winding R2 as main around
Group, winding R1 is as auxiliary winding.
Processor 45, for obtaining the torque to be output of monophase machine, from multiple torque ranges that monophase machine is preset,
Determine the torque range residing for torque to be output, wherein, the corresponding winding of each torque range and control switch.
Concrete, above-mentioned torque to be output can be the torque that monophase machine is provided to load, at different operating ring
In border, the torque that load needs is different.Above-mentioned multiple torque range can be provided by multiple windings, each torque range correspondence one
Individual winding, different umber of turns are different, and the number of turn of winding can need to be determined according to the working environment of monophase machine, this
Bright this is not especially limited.When monophase machine works, can only select from multiple windings a winding as Working winding,
Therefore, each windings in series one controls switch, is switched on-off by control and determines Working winding, further determines that single-phase electricity
The torque range of machine.
Controller 47, controls switch 43 with multiple and processor 45 is connected, for according to the torque residing for torque to be output
Scope, controls corresponding control switch Guan Bi, so that the winding of correspondence is as the Working winding of monophase machine.
In the optional scheme of one, after determining the torque range residing for the torque that load needs, it may be determined that make
For the winding of Working winding, and controlling the control switch Guan Bi with this windings in series, monophase machine is operated in this winding and is provided
Torque range in, monophase machine is operated in optimal power bracket, both can by load needed for torque, the most permissible
Ensure that input power is moderate, thus reach optimum Working.
Such as, still as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.In Fig. 3
Not showing that controller and processor, processor, can be according to turning that load needs after getting the torque that load needs
Square determines the torque range residing for this torque, for example, it may be the second torque range, then controller controls switch S2 Guan Bi, around
R2 is as main winding for group, and winding R1 is as auxiliary winding.
By the above embodiment of the present invention, the torque to be output of monophase machine can be obtained, preset many from monophase machine
In individual torque range, determine the torque range residing for torque to be output, and according to the torque range residing for torque to be output, control
Corresponding control switch Guan Bi, so that the winding of correspondence is as the Working winding of monophase machine.It is easily noted that, Duo Gezhuan
Multiple windings and control that square scope is corresponding switch, and by controlling different control switch Guan Bis, can select different windings
As Working winding, increase the torque output area of monophase machine, solve the operation torque model of monophase machine in prior art
Enclose fixing, the utilization rate of motor and the technical problem of restricted application.Therefore, by the above embodiment of the present invention, can make
Same monophase machine is attained by optimum Working under multiple torques, improves the torque range of monophase machine, utilization rate
And applicable performance, reduce energy resource consumption.
Optionally, in the above embodiment of the present invention, controller 47 includes:
First control module, in the case of the torque range residing for torque to be output is the first torque range, controls
System the first control switch Guan Bi, and control the second control and switch off, so that the first winding is as Working winding.
Second control module, in the case of the torque range residing for torque to be output is the second torque range, controls
System the second control switch Guan Bi, and control the first control and switch off, so that the second winding is as Working winding.
Herein it should be noted that owing to needing a Working winding when monophase machine works, therefore, multiple control switchs
One can only be closed simultaneously, if multiple control switch simultaneously switches off, i.e. monophase machine non-cut-in operation winding, or multiple control
Switch processed is closed at, i.e. monophase machine accesses multiple Working windings, then monophase machine cannot normally start.
In the optional scheme of one, after determining that the torque range described in torque to be output is the first torque range,
May determine that and need the first winding as Working winding, such that it is able to control switch Guan Bi by first, and ensure the second control
Switch is off, and the first winding accesses monophase machine, and the torque output area of monophase machine is the first torque range；?
After determining that the torque range described in torque to be output is the first torque range, it may be determined that need the first winding as work
Winding, such that it is able to control switch Guan Bi by first, and ensures that the second control switch is off, and the first winding accesses single
Phase motor, the torque output area of monophase machine is the first torque range.
Such as, still as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.Obtaining
After getting the torque that load needs, can torque range residing for this torque, if the torque range residing for this torque is the
One torque range, can control to switch S1 Guan Bi, and switch S2 disconnects, and winding R1 is Working winding, and corresponding monophase machine is operated in
In the torque range that winding R1 is provided, monophase machine reaches optimum Working.If the torque range residing for this torque is
Second torque range, can control to switch S2 Guan Bi, and switch S1 disconnects, and winding R2 is Working winding, corresponding monophase machine work
In the torque range that winding R2 is provided, monophase machine reaches optimum Working.
Optionally, in the above embodiment of the present invention, processor 45 includes:
First judge module, is used for judging whether torque to be output is in the first torque range.
First determines module, if be in the first torque range for torque to be output, it is determined that torque pair to be output
The torque range answered is the first torque range.
Second judge module, if be not in the first torque range for torque to be output, then judges torque to be output
Whether it is in the second torque range.
Second determines module, if be in the second torque range for torque to be output, it is determined that torque pair to be output
The torque range answered is the second torque range.
In the optional scheme of one, can be by the torque required for the load of the monophase machine got and the first torque
Scope and the second torque range compare, it is judged that the torque needed for load is in the first torque range or the second torque model
Enclose, can first the torque required for the load of monophase machine be compared with the first torque range, if monophase machine is negative
Within torque required for load is not in the first torque range, the most again by the torque required for the load of monophase machine with
Second torque range compares.
Optionally, in the above embodiment of the present invention, processor 45 includes:
3rd judge module, is used for judging that whether torque to be output is more than or equal to the first preset rotation speed.
3rd determines module, if for torque to be output more than or equal to the first preset rotation speed, it is determined that torque to be output
Corresponding torque range is the first torque range.
Whether 4th judge module, if for torque to be output less than the first preset rotation speed, then judging torque to be output
Less than or equal to the second preset rotation speed.
4th determines module, if for torque to be output less than or equal to the second preset rotation speed, it is determined that torque to be output
Corresponding torque range is the second torque range.
Concrete, above-mentioned first preset torque can be the minimum torque of the first torque range, above-mentioned second preset torque
Can be the torque capacity of the second preset range, the first torque range be more than the second torque range.
In the optional scheme of one, the minimum torque of bigger torque range can be obtained, and less torque range
Torque capacity, such as, bigger torque range is the first torque range, and less torque range is the second torque range, will load institute
The torque needed compares with minimum torque, it is judged that whether the torque needed for load is more than or equal to minimum torque, if it is, really
Torque needed for fixed load is in bigger torque range, is i.e. in the first torque range, if it is not, then turning needed for determining load
Square is not in bigger torque range, the torque needed for load is compared with torque capacity further, it is judged that needed for load
Whether torque is less than or equal to torque capacity, if it is, the torque needed for determining load is in less torque range, is i.e. in the
Two torque ranges.
Optionally, in the above embodiment of the present invention, foregoing circuit also includes:
Electric capacity, one end is connected with the first winding and the first junction point controlling switch, the other end and the second winding and second
The junction point controlling switch connects.
Concrete, the size of electric capacity can be set according to being actually needed of monophase machine, and this is not made to have by the present invention
Body limits.
Optionally, in the above embodiment of the present invention, above-mentioned electric capacity can be the start-up capacitance of monophase machine.
Optionally, in the above embodiment of the present invention, when first controls switch Guan Bi, and the second control switches off, the
One winding parallel, at the two ends of alternating current power supply, is connected in parallel on the two ends of alternating current power supply after the second winding and capacitances in series；When the first control
System switches off, and second when controlling switch Guan Bi, is connected in parallel on the two ends of alternating current power supply after the first winding and capacitances in series, second around
Group is connected in parallel on the two ends of alternating current power supply.
Such as, still as a example by monophase machine as shown in Figure 3, the above embodiment of the present invention is described in detail.Single-phase
Motor can also include start-up capacitance C, and wherein, the junction point of winding R1 and switch S1 is Z1, winding R2 and the connection of switch S2
Point is connected between junction point Z1 and junction point Z2 for Z2, start-up capacitance C.The mutual switching switched by control, so that
Winding R1 and winding R2 can connect with start-up capacitance C in turn, when switch S1 Guan Bi, when switch S2 disconnects, winding R2 and startup
Electric capacity C connects, and in parallel with winding R1, now, winding R1 is Working winding, and monophase machine is operated in first that winding R1 is provided
In torque range；When switch S1 disconnects, and during switch S2, winding R1 connects with start-up capacitance C, in parallel with winding R2, now, winding
R2 is Working winding, and monophase machine is operated in the torque range that winding R2 is provided.
Herein it should be noted that in the case of the working environment of monophase machine changes, such as, monophase machine
The first torque range that loading is provided from winding R1 changes to the second torque range that winding R2 is provided, then can disconnect out
Close S1, Guan Bi switch S2, Working winding is become winding R2 from winding R1.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment
The part described in detail, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be passed through other
Mode realizes.Wherein, device embodiment described above is only schematically, the division of the most described unit, Ke Yiwei
A kind of logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or
Person is desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed is mutual
Between coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, unit or module or communication link
Connect, can be being electrical or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be for personal computer, server or the network equipment etc.) perform the whole of method described in each embodiment of the present invention or
Part steps.And aforesaid storage medium includes: USB flash disk, read only memory (ROM, Read-OnlyMemory), random access memory are deposited
Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can store program code
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (15)
1. the control method of a monophase machine, it is characterised in that including:
Obtain the torque to be output of monophase machine；
From multiple torque ranges that described monophase machine is preset, determine the torque range residing for described torque to be output, wherein,
The corresponding winding of each torque range and a control switch；
According to the torque range residing for described torque to be output, control corresponding control switch Guan Bi, so that the winding of correspondence is made
Working winding for described monophase machine.
Method the most according to claim 1, it is characterised in that at multiple torque range bags that described monophase machine is preset
Include: in the case of the first torque range and the second torque range, described monophase machine includes: described first torque range is corresponding
First winding and first controls switch, and the second winding and second that described second torque range is corresponding controls switch, wherein, described
First winding is different with the number of turn of described second winding.
Method the most according to claim 2, it is characterised in that according to the torque range residing for described torque to be output, control
The control switch Guan Bi that system is corresponding, so that the winding of correspondence is as the Working winding of described monophase machine, including:
In the case of the torque range residing for described torque to be output is described first torque range, controls described first and control
Switch Guan Bi, and control described second control switch off, so that described first winding is as described Working winding；
In the case of the torque range residing for described torque to be output is described second torque range, controls described second and control
Switch Guan Bi, and control described first control switch off, so that described second winding is as described Working winding.
Method the most according to claim 2, it is characterised in that determine the torque range bag residing for described torque to be output
Include:
Judge whether described torque to be output is in described first torque range；
If described torque to be output is in described first torque range, it is determined that the torque model that described torque to be output is corresponding
Enclose for described first torque range；
If described torque to be output is not in described first torque range, then judge whether described torque to be output is in institute
State in the second torque range；
If described torque to be output is in described second torque range, it is determined that the torque model that described torque to be output is corresponding
Enclose for described second torque range.
Method the most according to claim 2, it is characterised in that determine the torque range bag residing for described torque to be output
Include:
Judge that whether described torque to be output is more than or equal to the first preset torque；
If described torque to be output is more than or equal to described first preset torque, it is determined that the torque that described torque to be output is corresponding
Scope is described first torque range；
If described torque to be output less than described first preset torque, then judges that described torque to be output is whether less than or equal to the
Two preset torque；
If described torque to be output is less than or equal to described second preset torque, it is determined that the torque that described torque to be output is corresponding
Scope is described second torque range.
Method the most as claimed in any of claims 1 to 5, it is characterised in that close controlling corresponding control switch
After conjunction, described monophase machine reaches optimum Working.
7. the control circuit of a monophase machine, it is characterised in that including:
Multiple windings, the plurality of winding parallel is at the two ends of alternating current power supply；
Multiple control switchs, and each control switch series is associated between winding and the described alternating current power supply of correspondence；
Processor, for obtaining the torque to be output of monophase machine, from multiple torque ranges that described monophase machine is preset, really
Fixed torque range residing for described torque to be output, wherein, the corresponding winding of each torque range and a control switch；
Controller, controls switch with the plurality of and described processor is connected, for according to turning residing for described torque to be output
Square scope, controls corresponding control switch Guan Bi, so that the winding of correspondence is as the Working winding of described monophase machine.
Circuit the most according to claim 7, it is characterised in that at multiple torque range bags that described monophase machine is preset
Include: in the case of the first torque range and the second torque range,
The plurality of winding includes: the first winding and the second winding, wherein, and described first winding and described first torque range pair
Should, described second winding is corresponding with described second torque range, and described first winding is different with the number of turn of described second winding；
The plurality of control switch includes: first controls switch and second controls switch, and described first controls switch series is associated in institute
Stating between the first winding and described alternating current power supply, described second controls switch series is associated in described second winding and described alternating current power supply
Between, wherein, described first control switch is corresponding with described first torque range, and described second controls to switch and described second turn
Square scope is corresponding.
Circuit the most according to claim 8, it is characterised in that described controller includes:
First control module, in the situation that the torque range residing for described torque to be output is described first torque range
Under, control described first control switch Guan Bi, and control described second control switch off, so that described first winding is as institute
State Working winding；
Second control module, in the situation that the torque range residing for described torque to be output is described second torque range
Under, control described second control switch Guan Bi, and control described first control switch off, so that described second winding is as institute
State Working winding.
Circuit the most according to claim 8, it is characterised in that described processor includes:
First judge module, is used for judging whether described torque to be output is in described first torque range；
First determines module, if be in described first torque range for described torque to be output, it is determined that described in treat defeated
Going out torque range corresponding to torque is described first torque range；
Second judge module, if be not in described first torque range for described torque to be output, then treats described in judgement
Whether output torque is in described second torque range；
Second determines module, if be in described second torque range for described torque to be output, it is determined that described in treat defeated
Going out torque range corresponding to torque is described second torque range.
11. circuit according to claim 8, it is characterised in that described processor includes:
3rd judge module, is used for judging that whether described torque to be output is more than or equal to the first preset rotation speed；
3rd determines module, if for described torque to be output more than or equal to described first preset rotation speed, it is determined that described in treat
The torque range exporting torque corresponding is described first torque range；
4th judge module, if for described torque to be output less than described first preset rotation speed, then judging described to be output
Whether torque is less than or equal to the second preset rotation speed；
4th determines module, if for described torque to be output less than or equal to described second preset rotation speed, it is determined that described in treat
The torque range exporting torque corresponding is described second torque range.
12. according to Claim 8 to the circuit described in any one in 11, it is characterised in that described circuit also includes:
Electric capacity, one end and described first winding and the described first junction point controlling switch are connected, the other end and described second around
Group and described second controls the junction point of switch and connects.
13. circuit according to claim 12, it is characterised in that described electric capacity is the start-up capacitance of described monophase machine.
14. circuit according to claim 12, it is characterised in that
When described first controls switch Guan Bi, and described second control switches off, described first winding parallel is in described exchange
The two ends of described alternating current power supply it are connected in parallel on after the two ends of power supply, described second winding and described capacitances in series；
When described first controls to switch off, during described second control switch Guan Bi, described first winding and described capacitances in series
After be connected in parallel on the two ends of described alternating current power supply, described second winding parallel is at the two ends of described alternating current power supply.
15. circuit according to claim 7, it is characterised in that after controlling corresponding control switch Guan Bi, described list
Phase motor reaches optimum Working.
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| CN201610591896.4A CN106230338B (en) | 2016-07-25 | 2016-07-25 | control method and circuit of single-phase motor |
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| CN201610591896.4A CN106230338B (en) | 2016-07-25 | 2016-07-25 | control method and circuit of single-phase motor |
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| CN106230338B CN106230338B (en) | 2019-04-30 |
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| CN204003546U (en) * | 2014-06-13 | 2014-12-10 | 艾美特电器（深圳）有限公司 | A kind of many gears wind speed electric fan |
| CN204794788U (en) * | 2015-07-08 | 2015-11-18 | 浙江苏泊尔家电制造有限公司 | Range hood and be used for range hood's AC motor drive circuit |
| CN204886778U (en) * | 2015-08-21 | 2015-12-16 | 安徽美芝精密制造有限公司 | Winding auto -change over device of air conditioner, compressor system and motor |
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| JPH05252708A (en) * | 1992-03-03 | 1993-09-28 | Matsushita Electric Ind Co Ltd | Single-phase induction start type synchronous motor |
| CN201533269U (en) * | 2009-06-09 | 2010-07-21 | 中山大洋电机股份有限公司 | Double-speed single-phase alternating current motor |
| CN101985945A (en) * | 2010-10-07 | 2011-03-16 | 叶露微 | Air speed step indicating circuit of electric fan |
| CN203883732U (en) * | 2014-04-30 | 2014-10-15 | 雷勃电气(常州)有限公司 | Electronic centrifugal switch circuit for double-speed motor |
| CN204003546U (en) * | 2014-06-13 | 2014-12-10 | 艾美特电器（深圳）有限公司 | A kind of many gears wind speed electric fan |
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|---|---|
| CN106230338B (en) | 2019-04-30 |
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