CN207098982U - Motor drive, motor and air conditioner - Google Patents
Motor drive, motor and air conditioner Download PDFInfo
- Publication number
- CN207098982U CN207098982U CN201690000372.7U CN201690000372U CN207098982U CN 207098982 U CN207098982 U CN 207098982U CN 201690000372 U CN201690000372 U CN 201690000372U CN 207098982 U CN207098982 U CN 207098982U
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- Prior art keywords
- motor
- quadratic function
- motor drive
- waveform
- linear function
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- 238000012887 quadratic function Methods 0.000 claims abstract description 47
- 238000012886 linear function Methods 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 abstract description 36
- 238000004804 winding Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- AWWAHRLLQMQIOC-UHFFFAOYSA-N [Fe].[Sm] Chemical compound [Fe].[Sm] AWWAHRLLQMQIOC-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model provides motor drive, motor and air conditioner.Motor possesses：Stator；Rotor, the rotor, which is disposed relative to stator, to be rotated；And drive circuit substrate, the drive circuit substrate, which has, to be applied the power supply IC of driving voltage to stator and generates the control IC of the pwm signal for being controlled to power supply IC.By controlling the pwm signal of IC generations to be generated using analog sine, analog sine is generated using linear function and quadratic function.
Description
Technical field
It the utility model is related to the motor for possessing the substrate for being provided with circuit block, the electricity being driven to the motor
Motivation drive device and the air conditioner for possessing the motor.
Background technology
The motor that pressure fan as indoor set or outdoor unit to being equipped on air conditioner is driven, following special
A kind of structure with drive circuit substrate is disclosed in sharp document 1, wherein, above-mentioned drive circuit substrate be equipped with Hall IC,
Inverter IC and for inverter IC switch element is carried out pulse width modulation (Pulse Width Modulation,
Be expressed as below " PWM ") control unit i.e. microcomputer.In order to carry out PWM controls, it is necessary to use to inverter IC switch element
Sine wave signal.In the case of by control of the microcomputer to realize motor, in existing air conditioner, by sine wave signal
Value read as list data and be stored in private memory (Read Only Memory, be expressed as below " ROM ").
Patent document 1：Japanese Unexamined Patent Publication 2014-230363 publications
As described above, in the prior art, in the case of by control of the microcomputer to realize motor, it is necessary to by sine
The value of ripple signal is pre-stored within ROM as list data.In this case, it is necessary to which more ROM capacity, has cost increasing
Add, the problem of size increase.In the case of by controls of the special IC (hereinafter referred to as " control IC ") to realize motor,
Same list data is also required to, similar problem can be produced.
Utility model content
The utility model is in view of above-mentioned condition and completed that its object is to obtain one kind to reduce to generating PWM
The size for the form that signal value needed for signal is kept, so as to suppress the motor of the increase of the increase of cost and size
And air conditioner.
In order to solve above-mentioned problem and reached purpose, the feature of the motor drive involved by the utility model exists
In possessing and apply the driving element of driving voltage to motor and generate the control of the pwm signal for controlling driving element
Element, control element generate pwm signal using the waveform of linear function and quadratic function has been used.
Also, the motor drive involved by the utility model is characterised by, in waveform, linear function it is oblique
The absolute value of rate is 1, the absolute value of the differential coefficient of the quadratic function at switching point when linear function switches with quadratic function
For 1, the absolute value of the crest of quadratic function is 1.
Also, the motor drive involved by the utility model is characterised by, the ripple beyond using crest for 1
In the case of shape, the multiplying power for being formed as desired peak value is integrally multiplied by waveform.
Also, the motor drive involved by the utility model is characterised by, α is being set to be more than 0 ° and is being less than
During 90 ° of arbitrary real number, waveform switches in α and 180 ° of+α from linear function to quadratic function, in 180 ° of-α and
Switch during 360 ° of-α from quadratic function to linear function.
Also, the motor drive involved by the utility model is characterised by, motor is threephase motor, α
It is set in the range of 25.5 °~34 °.
Also, the motor drive involved by the utility model is characterised by, α is set at 27 °~31.5 °
In the range of.
Also, the motor drive involved by the utility model is characterised by, when N is set into natural number, electricity
Motivation is the motor of 5N poles, and α is set in the range of 13 °~22.5 °.
Also, the motor drive involved by the utility model is characterised by, the value of quadratic function will be by that will count
Number devices output valve be the 1st output valve and make counter output valve delay after the 2nd output valve over-and-over addition and generate.
Also, the motor involved by the utility model is characterised by, above-mentioned motor drive is built-in with.
Also, the air conditioner involved by the utility model is characterised by, above-mentioned motor is equipped with.
According to the utility model, following effect can be played：It can reduce and the signal value needed for generation pwm signal is entered
The size for the form that row is kept, so as to suppress the increase of the increase of cost and size.
Brief description of the drawings
Fig. 1 is the sectional view of the motor involved by embodiment.
Fig. 2 is the outside drawing for the air conditioner for showing to be equipped with the motor involved by embodiment.
In the case that Fig. 3 is the circuit block for the drive circuit substrate for visually confirming to be configured at embodiment from anti-load-side
Plan.
In the case that Fig. 4 is the circuit block for visually confirming to be configured at the drive circuit substrate of embodiment from load-side
Plan.
Fig. 5 is the partial sectional view at the position that the power supply source IC in the drive circuit substrate of embodiment is carried.
Fig. 6 is the block diagram of the electrical connection for the drive circuit component for showing embodiment.
Fig. 7 is the circuit diagram of the structure of the inside for the power supply IC for showing embodiment.
Fig. 8 is the block diagram of the structure of the inside for the control IC for showing embodiment.
Fig. 9 is the block diagram of the structure for the inside for showing the analog sine generating unit shown in Fig. 8.
Figure 10 is the figure illustrated to the shape of the waveform of analog sine.
Figure 11 is the chart for the change for being shown with the higher hamonic wave containing ratio in the case of analog sine.
Figure 12 is the block diagram of the structure for the inside for showing the quadratic function value calculating part shown in Fig. 9.
Figure 13 is to exporting the figure illustrated come generation method when generating quadratic function value using counter.
Figure 14 is the side view cutaway drawing of another for showing the motor involved by embodiment.
Figure 15 is visually to confirm to be configured at the situation of the circuit block of the drive circuit substrate shown in Figure 14 from anti-load-side
Under plan.
In the case that Figure 16 is the circuit block for visually confirming to be configured at the drive circuit substrate shown in Figure 14 from load-side
Plan.
Figure 17 be the drive circuit component for showing to be driven motor be not built in the case of motor one
The figure of individual example.
Embodiment
Hereinafter, based on accompanying drawing to the motor drive involved by embodiment of the present utility model, motor and
Air conditioner is described in detail.In addition, the utility model is not limited by following embodiment.
Embodiment
Fig. 1 is the sectional view of the motor involved by present embodiment.Fig. 2 is to show to be equipped with involved by present embodiment
Motor air conditioner outside drawing.
Air conditioner 300 shown in Fig. 2 possesses the indoor set 300a and outdoor unit 300b being connected with indoor set 300a.In room
Interior machine 300a is equipped with the fan used for indoor machine for eliminating diagram, and the fan 310 of outdoor unit is equipped with outdoor unit 300b.On
The driving source for stating fan uses the motor 100 shown in Fig. 1.In addition, in fig. 2, as electronic involved by present embodiment
The application examples of machine and be illustrated air conditioner, but be not limited to air conditioner, can also apply to pressure fan, ventilation fan, machine
Various electrical equipments headed by bed etc..
Next, the structure of the motor 100 involved by present embodiment is illustrated.Motor 100 is as shown in Figure 1
It is configured to that there is molded stator 1, rotor assembled portion 18 and support 25 as main constituting portion.Illustrated as motor 100
Go out the DC Brushless Motor by Driven by inverter.
The rotating shaft 10 as the rotary shaft of motor 100 is through with the central part of rotor assembled portion 18.In motor 100
Rotating shaft 10 be equipped with the load of motor 100.If the air conditioner shown in Fig. 2, then it is equipped with as load used for indoor machine
The fan 310 of fan or outdoor unit.
Molded stator 1 is formed as the cylindrical shape centered on rotating shaft 10, by stator assembled portion 3 with being filled with moulded resin
Moulded resin portion 2 is formed.
Stator assembled portion 3 is stator 5, drive circuit substrate 4 and connector 6 one in the inscape of motor 100
The body formed position formed.Mounted member i.e. Hall IC 21, power supply IC22 and control are equipped with drive circuit substrate 4
IC23.Hereinafter, the circuit block for being equipped on drive circuit substrate 4 is properly termed as " drive circuit component ".Drive circuit base
Plate 4 is integrally sealed in passing by moulded resin with stator 5.Thus, it is equipped on the power supply IC22 of drive circuit substrate 4 radiating
Property improve, power supply IC22 maximum output improves.Further, since power supply IC22 thermal diffusivity improves, the thus damage of motor 100
Losing reduces.But because drive circuit substrate 4 etc. is the weaker construction of intensity, therefore preferably carry out low pressure molding, as with
In the moulded resin, unsaturated polyester resin etc. for using drive circuit substrate 4 and the integrally formed moulded resin portion 2 of stator 5
Thermosetting resin is proper.In addition, the details of drive circuit component will be described later.
Moulded resin portion 2 forms the outline of motor 100, and forms housing 19 in the substrate side surfaces of molded stator 1.
Housing 19 in a manner of surrounding the outer ring of load side bearing 16 to the load side bearing 16 to support.
The recess 26 of mortar shape is provided with moulded resin portion 2, the recess 26 of the mortar shape is formed so that and will can turned
Sub- assembled portion 18 from be arranged at fan even load opposite side (Fig. 1 right side in the side (hereinafter referred to as " load-side ") carried
Hand side, hereinafter referred to as " anti-load-side ") opening portion 29 to housing inside molded stator 1.In addition, opening portion 29 is in Fig. 1
It is provided with the part of support 25.Support 25 to the metal of electric conductivity for example by carrying out punch process to manufacture.
Stator 5 is made up of winding 7, stator core 8 and insulator 9, and stator core 8 is by being 0.1~0.7mm by thickness
The electromagnetic steel plate punching of left and right becomes band and is laminated by ca(u)lk, welding and bonding etc. to make.The stator of the banding
Iron core 8 possesses the multiple teeth for eliminating diagram, and insulator 9 has been applied on tooth.Insulator 9 is for example using polybutylene terephthalate tree
The thermoplastic resins such as fat (Poly Butylene Terephthalate, be expressed as below " PBT ") and with the one of stator core 8
Shaping or split shaping.The winding 7 of concentratred winding is wound with the tooth for applying insulator 9.If connect multiple concentratred windings
Winding 7, then for example form the winding of single Y types connection of three-phase.However, it is possible to think Distributed Winding.
Rotor assembled portion 18 is rotor 15, load side bearing 16 and anti-load-side in the inscape of motor 100
The position that bearing 17 combines.
Rotor 15 is configured to have：Rotating shaft 10；It is arranged at the circular rotor insulation portion 12 of the peripheral part of rotating shaft 10；Ring
Around the outer circumferential side for being arranged at rotor insulation portion 12 and with the permanent magnet i.e. rotor magnet 13 of 8 opposed arranging of stator core；And
The position detecting magnet 11 being arranged on the axis direction of rotating shaft 10 between rotor magnet 13 and drive circuit substrate 4.
Rotor 15 is rotated freely centered on rotating shaft 10, and revolving force is obtained by the rotating excitation field from stator core 8
So as to transmit torque to rotating shaft 10, pair load being directly or indirectly connected with rotating shaft 10 is driven.
Rotor insulation portion 12 be in order to rotating shaft 10 and rotor magnet 13 are insulated and rotating shaft 10 and stator core 8 are insulated and
Set.Rotor magnet 13, rotating shaft 10 and position detecting magnet 11 are exhausted by the rotor by vertical molding machine injection molding
Edge 12 and be integrally formed.Rotor insulation portion 12 uses thermoplastic resin.As thermoplastic resin, can exemplify PBT and
Polyphenylene sulfide (Poly Phenylene Sulfide, be expressed as below " PPS "), but be suitable for use of in above-mentioned PBT or
Coordinate resin obtained by glass-filled agent in PPS.Rotor insulation portion 12 forms dielectric layer.
Rotor magnet 13 using in thermoplastic resin mictomagnetism material and be molded resin magnet, rare earth element magnet,
Or ferrite sintered body magnet.Neodymium or samarium iron can be exemplified as rare earth element magnet.
On the axis direction of rotating shaft 10, load side bearing 16 is installed in the load-side (Fig. 1 left side) of rotating shaft 10,
Anti- load-side (Fig. 1 right side) is provided with anti-load side bearing 17.Rotating shaft 10 is by above-mentioned load side bearing 16 and anti-load-side
Bearing 17 rotatably supports.
It is, for example, ball bearing to load side bearing 16, is configured to possess：The inner ring 16a integratedly rotated with rotating shaft 10；It is embedding
Enter the outer ring 16b of the inner peripheral surface of housing 19；Configure multiple rolling element 16c between above-mentioned inner ring, outer ring；For making rolling
The lubricating oil (omitting diagram) that body 16c rolls with lubrication ground；And for enclosing the sealing plate (omitting diagram) of lubricating oil.It is interior
Circle 16a, outer ring 16b, rolling element 16c and sealing plate are typically made up of the conducting metal such as iron.Sealing plate is fixed in outer
16b is enclosed, and is rotated together with the 16b of outer ring.In addition, sealing plate electrically connects with outer ring 16b, but do not contacted with inner ring 16a.
Anti- load side bearing 17 also by with load side bearing 16 it is same in a manner of formed.The composition of anti-load side bearing 17 will
Element is also identical with loading the inscape of side bearing 16 or equivalent, and description is omitted.
When rotor assembled portion 18 is inserted from the opening portion 29 of molded stator 1 to recess 26, the negative of rotating shaft 10 is installed on
Carry side bearing 16 and be assembled in housing 19.Moreover, one end insertion housing 19 of the rotating shaft 10 of load side bearing 16 side, in the rotating shaft
10 are provided with above-mentioned fan etc..On the other hand, anti-load side bearing 17 is installed in the other end of rotating shaft 10, when the quilt of support 25
When being pressed into the inner peripheral portion in moulded resin portion 2 and being embedded in a manner of blocking opening portion 29, the anti-side bearing 17 that loads is assembled in
The inner side of the support 25.
In drive circuit substrate 4 formed with the through hole 8a penetrated for rotating shaft 10 and load side bearing 16.Formed with passing through
Through hole 8a drive circuit substrate 4 is held in insulator 9.Drive circuit substrate 4 is disposed on the axis direction of rotating shaft 10
Load between side bearing 16 and winding 7, and vertically configured relative to axis direction.In addition, mentioned here vertically not must
Must be relative to the axis direction of rotating shaft 10 into 90 degree, can also be from 90 degree of deviations.
Next, 3~Fig. 7 of reference picture accompanying drawing is to being equipped on the detailed feelings of the drive circuit component of drive circuit substrate 4
Condition illustrates.Fig. 3 is visually to confirm to be configured at the feelings of the circuit block of the drive circuit substrate 4 shown in Fig. 1 from anti-load-side
Plan under condition, in the case that Fig. 4 is the circuit block for visually confirming to be configured at same drive circuit substrate 4 from load-side
Plan.Fig. 5 is the partial sectional view at the position that the power supply source IC22 in drive circuit substrate 4 is carried.Fig. 6 is to show driving electricity
The block diagram of the electrical connection of circuit unit.Fig. 7 is the circuit diagram of the structure for the inside for showing power supply IC22.
As shown in figure 3, drive circuit substrate 4 anti-load-side be the side of stator 5 be equipped with Hall IC 21, power supply IC22 with
And control IC23.Hall IC 21 is the magnetic pole position sensor for detecting the rotation position of rotor 15, is with Hall element etc.
Represent.Control IC23 to be the detection information based on Hall IC 21 and generate the pwm signal for carrying out PWM controls to power supply IC22
Control element.Power supply IC22 is the driving element for applying driving voltage to the winding 7 of stator 5, is dissipated as shown in Figure 5 via the 1st
Thermal image is radiating pattern 30 and is equipped on drive circuit substrate 4.In addition, the power supply IC22 shown in Fig. 3 is pasting type, can
Together installed with Hall IC 21 and control IC23 by one side Reflow Soldering process.In addition, power supply IC22 and control IC23
It can be used as driving IC and being integrally formed.
As shown in figure 4, the load-side in drive circuit substrate 4 is provided with for making the heat spreader as caused by power supply IC22
The radiating pattern 32 as the 2nd radiating pattern.As shown in figure 5, in order to make it easy to transmit the heat as caused by power supply IC22,
Power supply IC22 is connected with radiating pattern 32 via radiating pattern 30 and through hole 34, wherein, above-mentioned radiating pattern 30 is passed by heat
The high metal of conductance is formed, and above-mentioned through hole 34 is injected with the high metal of pyroconductivity.The metal high as pyroconductivity, can
Illustrate copper or silver etc..In addition, connector 6, Hall IC 21, power supply IC22 shown in Fig. 3~Fig. 5 and control IC23's matches somebody with somebody
Seated position is an example, also allows to be formed as other configurations certainly.
Hall IC 21, power supply IC22 and the control IC23 for being equipped on drive circuit substrate 4 are connected in the manner depicted in FIG. 6
And motor 100 is driven.Illustrate in more detail, the positional information for including rotor 15 detected by Hall IC 21
Signal be position of magnetic pole signal be input to control IC23.The rotary speed for indicating rotor 15 is also assigned to control IC23
Rotary speed instruction (also referred to as " rotational speed command ").Control IC23 based on the position of magnetic pole signal from Hall IC 21 and come
Rotary speed instruction from outside, generates the pwm signal for being controlled to power supply IC22 and is given to power supply IC22.
As shown in fig. 7, power supply IC22 is configured to include inverter circuit 114 and arm drive circuit 116.Inverter circuit
114 go up the switch element 114a of underarm by 3 Dui that will be driven to the winding 7 (reference picture 1) of the three-phase in motor 100
~114f is bridged and formed.Switch element 114a, 114d in switch element 114a~114f form the upper underarm of U phases, switch
Element 114b, 114e form the upper underarm of V phases, and switch element 114c, 114f form the upper underarm of W phases.
The mutual tie point of switch element of upper underarm is brought out and is connected with stator as exchange end.On the other hand, on
The mutual tie point of arm is brought out as DC terminal with the mutual tie point of underarm and is connected with rectification circuit 112.Rectification circuit
The alternating voltage of source power supply 110 is converted to DC voltage and puts on inverter circuit 114 by 112.IC23 generations are controlled to use
The pwm signal of PWM drivings is carried out in switch element 114a~114f to upper underarm and exports it to arm drive circuit 116.
Be provided with to switch element 114a~114c of upper arm upper arm drive circuit 116a being driven in arm drive circuit 116 and
The underarm drive circuit 116b being driven to switch element 114d~114f of underarm.Upper arm drive circuit 116a and underarm
Drive circuit 116b is driven based on pwm signal to the switch element of driven object.By to switch element 114a~
114f is driven, and the DC voltage for carrying out self-rectifying circuit 112 is converted into the alternating voltage of changeable frequency.Exchange after conversion
Voltage is applied in winding 7 via the winding terminals 24 (reference picture 1) for electrically connecting drive circuit substrate 4 with winding 7, electronic
Machine 100 is driven.In addition it is also possible to the power supply IC22 being explained above and control IC23 are structured to motor
100 motor drives being driven.
Next, 8~Figure 13 of reference picture accompanying drawing, to the major part involved by the motor 100 of present embodiment
Structure, action and effect illustrate.Fig. 8 is the block diagram of the structure of the inside for the control IC23 for showing present embodiment, Fig. 9
It is the block diagram of the structure for the inside for showing the analog sine generating unit 50 shown in Fig. 8, Figure 10 is the waveform to analog sine
The figure that illustrates of shape, Figure 11 is the figure for the change for being shown with the higher hamonic wave containing ratio in the case of analog sine
Table, Figure 12 are the block diagrams of the structure for the inside for showing the quadratic function value calculating part 54 shown in Fig. 9, and Figure 13 is to using counter
Export the figure illustrated come generation method when generating quadratic function value.
As shown in figure 8, include analog sine generating unit 50 and PWM signal generation section 70 in control IC23 inside.
Analog sine generating unit 50 generates analog sine described later and exported to PWM signal generation section 70.PWM signal generation section 70
It is enter to the position of magnetic pole signal from Hall IC 21.In addition, in the inside of PWM signal generation section 70, generation has and magnetic pole position
The carrier wave of confidence synchronization.PWM signal generation section 70 is used for switch by compared with carrier wave, being generated to analog sine
Element 114a~114f carries out the pwm signal of PWM controls.In addition, the generation method of pwm signal is known, omit herein
It is further to describe in detail.
As shown in figure 9, analog sine generating unit 50 includes linear function value calculating part 52, quadratic function value calculating part 54
And functional value selector 56.Linear function value calculating part 52 generates the output valve proportionally increased or decreased with the elapsed time
That is linear function value, and export to functional value selector 56.Quadratic function value calculating part 54 is generated relative to the elapsed time into two
The output valve of the relation of secondary function is quadratic function value, and is exported to functional value selector 56.Functional value selector 56 receives one
Secondary functional value and quadratic function value simultaneously selects any of which side and exported to outside.
In fig.9, the output of functional value selector 56 is analog sine wave number.That is, analog sine wave number is to select once
In the quadratic function value that the linear function value and quadratic function value calculating part 54 that functional value calculating part 52 is generated are generated
Output valve obtained by either one.
Counter can be exemplified as linear function value calculating part 52.It can realize in the following way：Counter to
The quantity of the clock pulses used in calculating processing is counted, and regard value obtained by counting as output valve.In addition, secondary letter
The structure in numerical computations portion 54 will be described later.
The appearance for the waveform that analog sine generating unit 50 is generated is shown in Figure 10.In Fig. 10, represented by heavy line
Waveform be the quadratic function that quadratic function value calculating part 54 is generated waveform, by thick dashed line represent waveform be a letter
The waveform for the linear function that numerical computations portion 52 is generated.
That is, in the waveform shown in Figure 10, there is the 1st feature as shown below.
(a) waveform formation of the certain angle before and after zero crossing is linear function, by angle in addition by generation
Waveform formation is the analog sine of quadratic function.
According to above-mentioned 1st feature, mould can be generated using simple function as linear function and quadratic function
Intend sine wave, therefore pwm signal can be generated using the waveform of linear function and quadratic function has been used.As a result, it is possible to subtract
Small control IC circuit scale, it can obtain suppressing the effect of the increase of cost and the increase of size.In addition, replacing
IC is controlled using in the case of microcomputer, due to ROM capacity can be reduced, therefore can obtain and control IC identical effects.
In addition, in the waveform shown in Figure 10, there is the 2nd feature as shown below.
(b) slope of linear function is " 1 " or " -1 ", i.e. the absolute value of the slope of linear function is " 1 ".
(c) differential of the quadratic function in switching point when linear function switches with quadratic function, C portions and F portions
Coefficient is " 1 ", and the differential coefficient of the quadratic function in D portions and E portions is " -1 ".When i.e., linear function switches with quadratic function
The absolute value of the differential coefficient of quadratic function at switching point is equal with the absolute value of the slope of linear function, is " 1 ".
(d) absolute value (hereinafter referred to as " peak value ") of the crest of quadratic function is " 1 ".
In addition, as analog sine, in the case where needing to use peak value to be the waveform beyond " 1 ", as long as to Figure 10
The value of shown normalization waveform is multiplied by the multiplying power for being formed as desired peak value.For example, it is " 3 " needing peak value
Waveform in the case of, as long as making the output valve of the waveform shown in Figure 10 integrally be changed into 3 times.
According to above-mentioned 2nd feature, mould can be generated using simple function as linear function and quadratic function
Intend sine wave, therefore pwm signal can be generated using the waveform of linear function and quadratic function has been used.As a result, it is possible to subtract
Small control IC circuit scale, it can obtain suppressing the effect of the increase of cost and the increase of size.In addition, replacing
IC is controlled using in the case of microcomputer, ROM capacity can be reduced, therefore can obtain and control IC identical effects.
In addition, in the waveform shown in Figure 10, there is the 3rd feature as shown below.
(e) using the arbitrary real number α more than 0 ° and less than 90 °, and set from linear function cut in the following way
Change into quadratic function and from quadratic function switch to linear function when angle (hereinafter referred to as " commuting angle ").
(i) value of analog sine is timing
The commuting angle switched from linear function towards quadratic function：α
The commuting angle switched from quadratic function towards linear function：180 ° of-α
(ii) when the value of analog sine is bears
The commuting angle switched from linear function towards quadratic function：180°+α
The commuting angle switched from quadratic function towards linear function：360 ° of-α
That is, in the case where α to be set to the arbitrary real number more than 0 ° and less than 90 °, the waveform of analog sine is at 0 °
In the range of~360 °, switch in α and 180 ° of+α from linear function to quadratic function, in 180 ° of-α and 360 ° of-α
Switch from quadratic function to linear function.
According to above-mentioned 3rd feature, in Fig. 10, be formed as the waveform of the point symmetry centered on the point of 180 ° of angle, and
And be formed as with respect to 90 ° and 180 ° of angle and the straight line line symmetrical waveform parallel with the longitudinal axis, therefore as be described hereinafter
Shown in Figure 11, the small analog sine of higher hamonic wave containing ratio can be generated.
Change using commuting angle α as the higher hamonic wave containing ratio of parameter is shown in Figure 11.In fig. 11, solid line represents total high
Subharmonic distortion rate (Total Harmonic Distortion, be expressed as below " THD "), single dotted broken line represent 3 subharmonic
Distortion rate (hereinafter referred to as " 3 distortion rates "), double dot dash line represent the distortion rate (hereinafter referred to as " 5 distortion rates ") of 5 subharmonic.
In addition, dotted line represents the distortion rate of a larger side in maximum distortion rate, i.e. 3 time distortion rate and 5 distortion rates.In addition, THD, 3
Secondary distortion rate and 5 distortion rates are the desired values of the degree for the distortion for representing signal.THD is that higher harmonic component is integrally relative
In the ratio between fundamental wave component, 3 distortion rates be 3 subharmonic compositions relative to the ratio between fundamental wave component, 5 distortion rates be 5 subharmonic into
Split-phase is for the ratio between fundamental wave component.
In addition, the embodiment being formed as：In the case where motor 100 is threephase motor, with the above-mentioned 1st
In the waveform of~the 3 feature, preferably α is set in the range of 25.5 °~34 °.
In the case that α is set in the range of 25.5 °~34 °, as shown in figure 11,3 distortion rates are less than 1%.It is special
It is not in the case of threephase motor, it is known that 3 noises easily occur.Therefore, in the case of threephase motor, if by α
25.5 °~34 ° are set in, then turns into situation about being driven using the less analog sine of 3 subharmonic, can obtain can
Reduce the effect of noise.
In addition, the embodiment being formed as：In the waveform with above-mentioned 1st~the 3rd feature, preferably α is set in
In the range of 27 °~31.5 °.
In the case where being set in α in the range of 27 °~31.5 °, as shown in figure 11, THD is less than 1%.Therefore, if making
With the analog sine being set in α in the range of 27 °~31.5 ° come drive motor, then except relevant with threephase motor
The effect above outside, additionally it is possible to obtain that the noise beyond 3 subharmonic can be reduced, the effect of running efficiency can also be improved in addition
Fruit.
In addition, the embodiment being formed as：When motor is the magnet that rotor has (N × 5) pole (N is natural number)
In the case of motor (hereinafter referred to as " 5N pole motors "), preferably α is set in the range of 13 °~22.5 °.
In the case that α is set in the range of 13 °~22.5 °, as shown in figure 11,5 distortion rates are less than 0.36%.
Particularly in the case of 5N pole motors, it is known that the noise of 5 times easily occur.Therefore, in the case of 5N pole motors, if
α is set in 13 °~22.5 °, then turns into using the few analog sine of 5 subharmonic come situation about being driven, can obtain
The effect of noise can be reduced.
As quadratic function value calculating part 54, as shown in figure 12, counter 54a, adder 54b and delay can be utilized
Portion 54c is realized.Counter 54a is counted to the quantity of clock pulses and exported to adder 54b.Adder 54b output
Value i.e. the 1st output valve is back to adder 54b after portion 54c delays are delayed by.The 2nd output valve being delayed by after portion 54c delays
It is the 1st output valve over-and-over addition in adder 54b and counter 54a output valve, and inputs again to delay portion 54c.Now,
It is that output counter 54a output valve is that counter is defeated in positive scope in the value of analog sine as shown in Figure 13 bottom
Go out the value that value count downwards (countdown), in the scope that the value of analog sine is negative, output counter output
Value is counted up the value of (count up).Zero cross point thereby, it is possible to generate counter output valve is analog sine
Peak value Figure 13 top shown in waveform.
Structure according to Figure 12, due to and be not used multiplier, so the shortening of operation time can be realized.Cause
This, in the case of by controlling controls of the IC to realize motor, can obtain reducing control IC circuit scale
Effect.In addition, in the case of by control of the microcomputer to realize motor, the shortening of operation time can be realized, therefore
The effect of microcomputer that need not be expensive can be obtained.In addition, in the case where carrying out the control of motor, angle gradually is used
Sinusoidal wave number it is sufficient that.For example, if angular resolution is 1 °, according to 1 ° of analog sine wave number, 2 ° of analog sine
Wave number, 3 ° of analog sine wave number ..., the such order of 360 ° of analog sine wave number, generate the simulation untill 360 °
Sinusoidal wave number.So, the generation method of the analog sine wave number involved by present embodiment is provided with circuit block possessing
Useful in the motor of substrate, the air-supply motor that is particularly suitable in the outdoor unit and indoor set of air conditioner and
Electric motor for compressor in the outdoor unit of air conditioner.
In addition, the structure shown in the embodiment of the above only shows an example of content of the present utility model,
It can be combined with other known technologies, can be in the range of purport of the present utility model not be departed from, to structure yet
A part is omitted, changed.
For example, Figure 14 is the side view cutaway drawing of another of the motor involved by present embodiment, Figure 15 is from anti-negative
The plan in the case that the circuit block for being configured at the drive circuit substrate 4 shown in Figure 14 is observed in side is carried, Figure 16 is from load
Side observation is configured at the plan in the case of the circuit block of the drive circuit substrate 4 shown in Figure 14.In Fig. 1, using as
The power supply IC22 of mounted member is equipped on anti-load-side, but as shown in Figure 14 and Figure 16, will be used as wire type (lead
Type) the power supply IC27 of part is equipped on load-side.Self-evident, the motor of this structure is also contained in of the present utility model
In purport.In the case of the power supply IC for wire type, the power supply IC for being only configured at load-side can be by one side Reflow Soldering
Process is installed.
Figure 17 is the situation for showing not being built in the drive circuit component that motor 100 is driven motor 100
Under an example figure, and the indoor set base that drive circuit component is equipped in the indoor set 300a shown in Fig. 2 is shown
The example of plate 320.Machine substrate 320 is equipped with power supply IC22 and control IC23 indoors.Position of magnetic pole from Hall IC 21
Signal is input to control IC23.Control rotating speeds of the IC23 based on the position of magnetic pole signal from Hall IC 21 and from outside
Instruction, generates the pwm signal for being controlled to power supply IC22 and is given to power supply IC22.Action afterwards as described above that
Sample is carried out, and omits detailed description herein.
In addition, in the present embodiment, the control with magnetic pole position sensor for possessing Hall IC is illustrated, but
Certainly it can also apply to the so-called sensorless strategy for not possessing the magnetic pole position sensors such as Hall IC.
Description of reference numerals
1：Molded stator；2：Moulded resin portion；3：Stator assembled portion；4：Drive circuit substrate；5：Stator；6：Connector；
7：Winding；8：Stator core；8a：Through hole；9：Insulator；10：Rotating shaft；11：Position detecting magnet；12：Rotor insulation portion；
13：Rotor magnet；15：Rotor；16：Load side bearing；16a：Inner ring；16b：Outer ring；16c：Rolling element；17：Anti- load side axle
Hold；18：Rotor assembled portion；19：Housing；21：Hall IC (magnetic pole position sensor)；22：Power supply IC (driving elements：Attachment portion
Part)；23：Control IC (control element)；24：Winding terminals；25：Support；26：Recess；27：Power supply IC (driving elements：Leads
Type part)；29：Opening portion；30：Radiating pattern (the 1st radiating pattern)；32：Radiating pattern (the 2nd radiating pattern)；34：Insertion
Hole；50：Analog sine generating unit；52：Linear function value calculating part；54：Quadratic function value calculating part；54a：Counter；
54b：Adder；54c：Delay portion；56：Functional value selector；70：PWM signal generation section；100：Motor；110：Commercial electricity
Source；112：Rectification circuit；114：Inverter circuit；114a~114f：Switch element；116：Arm drive circuit；116a：Upper arm drives
Dynamic circuit；116b：Underarm drive circuit；300：Air conditioner；300a：Indoor set；300b：Outdoor unit；310：Fan；320：It is indoor
Machine substrate.
Claims (10)
- A kind of 1. motor drive, for being driven to motor, it is characterised in that possess：Driving element, the driving element apply driving voltage to the motor；AndControl element, the control element generate for control the driving element, using having used linear function and secondary letter The pwm signal of several waveform generations.
- 2. motor drive according to claim 1, it is characterised in thatIn the waveform,The absolute value of the slope of the linear function is 1,The differential coefficient of the quadratic function at switching point when the linear function switches with the quadratic function it is absolute It is worth for 1,The absolute value of the crest of the quadratic function is 1.
- 3. motor drive according to claim 2, it is characterised in thatIn the case where using the crest being the waveform beyond 1, waveform is integrally multiplied by for being formed as desired peak value Multiplying power.
- 4. according to motor drive according to any one of claims 1 to 3, it is characterised in thatWhen α to be set to the arbitrary real number more than 0 ° and less than 90 °,The waveform switches in α and 180 ° of+α from the linear function to the quadratic function, in 180 ° of-α and Switch during 360 ° of-α from the quadratic function to the linear function.
- 5. motor drive according to claim 4, it is characterised in thatThe motor is threephase motor,The α is set in the range of 25.5 °~34 °.
- 6. motor drive according to claim 4, it is characterised in thatThe α is set in the range of 27 °~31.5 °.
- 7. motor drive according to claim 4, it is characterised in thatWhen N is set into natural number, the motor is the motor of 5N poles,The α is set in the range of 13 °~22.5 °.
- 8. according to motor drive according to any one of claims 1 to 3, it is characterised in thatThe value of the quadratic function is by being the 1st output valve by the output valve of counter and postponing the output valve of the counter Rear the 2nd output valve over-and-over addition and generate.
- A kind of 9. motor, it is characterised in thatIt is built-in with motor drive according to any one of claims 1 to 3.
- A kind of 10. air conditioner, it is characterised in thatIt is equipped with the motor described in claim 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/064508 WO2017199302A1 (en) | 2016-05-16 | 2016-05-16 | Electric motor drive device, electric motor, and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098982U true CN207098982U (en) | 2018-03-13 |
Family
ID=60324959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000372.7U Expired - Fee Related CN207098982U (en) | 2016-05-16 | 2016-05-16 | Motor drive, motor and air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6537716B2 (en) |
| CN (1) | CN207098982U (en) |
| WO (1) | WO2017199302A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135934A (en) * | 2020-02-27 | 2022-09-30 | 三菱电机株式会社 | Outdoor unit and air conditioning device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019110734A (en) * | 2017-12-20 | 2019-07-04 | 日本電産株式会社 | Motor device and motor system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106176A (en) * | 1988-10-12 | 1990-04-18 | Mitsubishi Electric Corp | Pulse width modulation inverter |
| JPH02241370A (en) * | 1989-03-13 | 1990-09-26 | Fujitsu General Ltd | Calculating method for pwm waveform of inverter control |
| JP2001238484A (en) * | 2000-02-22 | 2001-08-31 | Matsushita Electric Ind Co Ltd | Inverter apparatus |
| JP4016681B2 (en) * | 2002-03-18 | 2007-12-05 | ヤマハ株式会社 | Effect imparting device |
| JP3888272B2 (en) * | 2002-09-25 | 2007-02-28 | 株式会社日立製作所 | AC motor control device and semiconductor device |
| JP4552466B2 (en) * | 2004-03-12 | 2010-09-29 | 株式会社日立製作所 | AC motor control device, 2-chip inverter and one-chip inverter. |
-
2016
- 2016-05-16 CN CN201690000372.7U patent/CN207098982U/en not_active Expired - Fee Related
- 2016-05-16 JP JP2018517944A patent/JP6537716B2/en not_active Expired - Fee Related
- 2016-05-16 WO PCT/JP2016/064508 patent/WO2017199302A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135934A (en) * | 2020-02-27 | 2022-09-30 | 三菱电机株式会社 | Outdoor unit and air conditioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6537716B2 (en) | 2019-07-03 |
| WO2017199302A1 (en) | 2017-11-23 |
| JPWO2017199302A1 (en) | 2018-08-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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