CN108134489B - Assemble method, assembling device and the permanent magnet synchronous motor of permanent magnet synchronous motor - Google Patents
Assemble method, assembling device and the permanent magnet synchronous motor of permanent magnet synchronous motor Download PDFInfo
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- CN108134489B CN108134489B CN201810140427.XA CN201810140427A CN108134489B CN 108134489 B CN108134489 B CN 108134489B CN 201810140427 A CN201810140427 A CN 201810140427A CN 108134489 B CN108134489 B CN 108134489B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention provides the assemble method of permanent magnet synchronous motor, assembling device and permanent magnet synchronous motors, comprising: determines the stator field direction of positioning stage stator；Determine center location of the armature spindle in the stator；Determine the position of backpressure condition lower piston；According to the stator field direction, the first anchor point on the rotor field anchor point and the armature spindle on rotor is determined；According to the position of the center location and the piston, the second anchor point on the crankshaft anchor point and the armature spindle on crankshaft is determined；The armature spindle is mounted on the center location, wherein the center location is overlapped with the axle center of the armature spindle；By the rotor and the crankshaft installed on the armature spindle, wherein the rotor field anchor point and first anchor point are overlapped, and the crankshaft anchor point and second anchor point are overlapped.This programme can be improved reliability when frequency-changeable compressor starts under backpressure condition.
Description
Technical field
The present invention relates to field of electromechanical technology, the in particular to assemble method of permanent magnet synchronous motor, assembling device and permanent magnetism
Synchronous motor.
Background technique
Motor is the heart of compressor, and whether motor can smoothly start the operation that will affect compressor, and the group of motor
Dress then directly affects the starting of motor.
Currently, the motor of refrigerator frequency-changeable compressor is permanent magnet synchronous motor, the pump housing is piston compressor, by recent years
The continuous development of variable-frequency driving technique, unloaded and underloading starting are more perfect.But with the requirement of refrigerator machine system
Raising, the generally existing difficulty in starting under backpressure condition, vibration is big, hits cylinder, or even phenomena such as starting failure.Same frequency conversion
Plate drives the compressor with model, and some compressor north Asia starting abilities are preferable, has very poor, so that frequency-changeable compressor exists
The poor reliability started under backpressure condition.
Summary of the invention
The embodiment of the invention provides the assemble method of permanent magnet synchronous motor, assembling device and permanent magnet synchronous motors, can
Improve reliability when frequency-changeable compressor starts under backpressure condition.
In a first aspect, the embodiment of the invention provides a kind of assemble methods of permanent magnet synchronous motor, comprising:
Determine the stator field direction of positioning stage stator；
Determine center location of the armature spindle in the stator；
Determine the position of backpressure condition lower piston；
According to the stator field direction, determine that first on the rotor field anchor point and the armature spindle on rotor is fixed
Site；
According to the position of the center location and the piston, determine on the crankshaft anchor point and the armature spindle on crankshaft
The second anchor point；
The armature spindle is mounted on the center location, wherein the axle center of the center location and armature spindle weight
It closes；
By the rotor and the crankshaft installed on the armature spindle, wherein the rotor field anchor point and described
First anchor point is overlapped, and the crankshaft anchor point and second anchor point are overlapped.
Preferably, the stator field direction of the determining located stator, comprising:
On the stator in transduction-driven position stage mark stator field direction, wherein the stator field direction with turn
The rotor field direction marked in advance on son is corresponding；
It is described according to the stator field direction, determine on the rotor field anchor point and the armature spindle on rotor
One anchor point, comprising:
The stator field direction is marked on the armature spindle；
Determine the rotor-position of the rotor, wherein rotor field direction and labeled institute under the rotor-position
State the stator magnet that the initial angle between stator field direction marks in preset angle section, and on the armature spindle
The stator field direction marked on field direction and the stator is identical；
Label characterizes the rotor field anchor point of the rotor-position on the rotor；
The first anchor point corresponding with the rotor field anchor point is marked on the armature spindle.
Preferably, before the stator field direction of the determining stator, further comprise:
It magnetizes in advance to rotor；
Determine the magnetic pole of the rotor after magnetizing；
Determine the identical rotor field direction of the pole orientation；
The rotor field direction is marked in the internal diameter of the rotor.
Preferably, the angle section is [80 °, 100 °].
Preferably, before the position of the determining backpressure condition lower piston, further comprise:
According to preset back pressure section, the pressure difference between piston exhaust side and air inlet side is adjusted；
The position of the determining backpressure condition lower piston, comprising:
Determine the position of the piston described under the pressure difference.
Preferably, the back pressure section is [0.1MPa, 0.5MPa].
Preferably, in the position according to the center location and the piston, the crankshaft anchor point on crankshaft is determined
Before the second anchor point on the armature spindle, further comprise:
When determining that the crankshaft is connected with the armature spindle, the center location corresponds to the mapping point on the crankshaft；
Determine the back pressure distance between the position of the piston and the mapping point；
The position according to the center location and the piston determines crankshaft anchor point and the rotor on crankshaft
The second anchor point on axis, comprising:
When the crankshaft is connected with the armature spindle and connecting rod, determined between the crankshaft and connecting rod according to the following formula
Back pressure angle:
Wherein, the θ characterizes the back pressure angle, and the b characterizes the length of the connecting rod, and the c characterizes the crankshaft
Length, a characterizes the back pressure distance；
Determine the relative position of the crankshaft and the armature spindle under the conditions of back pressure angle；
Label characterizes the crankshaft anchor point of the relative position on the crankshaft；
It is marked on the armature spindle, the armature spindle and the crankshaft are corresponding with the crankshaft anchor point the when being connected
Two anchor points.
Second aspect, the embodiment of the invention provides a kind of assembling devices of permanent magnet synchronous motor, comprising:
Motor control module, for determining the stator field direction of positioning stage stator；Determine armature spindle in the stator
In center location；According to the stator field direction, determine on the rotor field anchor point and the armature spindle on rotor
First anchor point；According to the position for the piston that the center location and piston control module determine, the song on crankshaft is determined
The second anchor point on axis anchor point and the armature spindle；
The piston control module, for determining the position of backpressure condition lower piston；
Module is installed, for the armature spindle to be mounted on the center location that the motor control module determines,
In, the center location is overlapped with the axle center of the armature spindle；By the rotor and the crankshaft installed on the armature spindle,
Wherein, the rotor field anchor point and first anchor point are overlapped, the crankshaft anchor point and the second anchor point weight
It closes.
Preferably, the motor control module, for marking stator field side on the stator in transduction-driven position stage
To, wherein the rotor field direction marked in advance on the stator field direction and rotor is corresponding；In the armature spindle subscript
Remember the stator field direction；Determine the rotor-position of the rotor, wherein rotor field direction under the rotor-position with
Initial angle between the labeled stator field direction marks on the armature spindle in preset angle section
The stator field direction marked on the stator field direction and the stator is identical；The label characterization institute on the rotor
State the rotor field anchor point of rotor-position；Corresponding with the rotor field anchor point first is marked to determine on the armature spindle
Site.
The third aspect, the embodiment of the invention provides a kind of permanent-magnet synchronous of any assemble method assembling of first aspect
Motor, comprising: stator, armature spindle, crankshaft and rotor；
The armature spindle is mounted in the stator, wherein the axle center of the center location of the stator and the armature spindle
It is overlapped；
The crankshaft installed is on the armature spindle, wherein passes through the position of backpressure condition lower outer portion piston on the crankshaft
The crankshaft anchor point determined with the center location is set, determines that second is fixed by the stator field direction on the armature spindle
Site is overlapped；
The rotor is mounted on the armature spindle, wherein passes through the stator field direction of the stator on the rotor
Determining rotor field direction anchor point, first positioning determining with the stator field direction is passed through on the armature spindle
Point is overlapped.
In embodiments of the present invention, it when assembling permanent magnet synchronous motor, needs installed according to the determination of stator field direction
Corresponding rotor field anchor point and the first anchor point when rotor and armature spindle, then determine that armature spindle is respectively corresponded with crankshaft
The second anchor point and crankshaft anchor point, rotor field anchor point and the first anchor point are overlapped, crankshaft anchor point and second is determined
Site is overlapped the assembling that motor can be completed.Since rotor, crankshaft and armature spindle are the anchor points determined respectively in backpressure condition
It assembles afterwards, therefore, starts motor under backpressure condition, positioning when can open loop be dragged is more acurrate, so as to subtract
Vibration when small frequency-changeable compressor starts.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow chart of the assemble method for permanent magnet synchronous motor that one embodiment of the invention provides；
Fig. 2 is the flow chart of the assemble method for another permanent magnet synchronous motor that one embodiment of the invention provides；
Fig. 3 is a kind of structural schematic diagram for permanent magnet synchronous motor that one embodiment of the invention provides；
Fig. 4 is a kind of structural schematic diagram for permanent magnet synchronous motor assembling device that one embodiment of the invention provides；
Fig. 5 is the structural schematic diagram for another permanent magnet synchronous motor that one embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of assemble methods of permanent magnet synchronous motor, comprising:
Step 101: determining the stator field direction of positioning stage stator；
Step 102: determining center location of the armature spindle in the stator；
Step 103: determining the position of backpressure condition lower piston；
Step 104: according to the stator field direction, determining on the rotor field anchor point and the armature spindle on rotor
The first anchor point；
Step 105: according to the position of the center location and the piston, determining crankshaft anchor point on crankshaft and described
The second anchor point on armature spindle；
Step 106: the armature spindle is mounted on the center location, wherein the center location and the armature spindle
Axle center be overlapped；
Step 107: by the rotor and the crankshaft installed on the armature spindle, wherein the rotor field positioning
Point and first anchor point are overlapped, and the crankshaft anchor point and second anchor point are overlapped.
In embodiments of the present invention, it when assembling permanent magnet synchronous motor, needs installed according to the determination of stator field direction
Corresponding rotor field anchor point and the first anchor point when rotor and armature spindle, then determine that armature spindle is respectively corresponded with crankshaft
The second anchor point and crankshaft anchor point, rotor field anchor point and the first anchor point are overlapped, crankshaft anchor point and second is determined
Site is overlapped the assembling that motor can be completed.Since rotor, crankshaft and armature spindle are the anchor points determined respectively in backpressure condition
It assembles afterwards, therefore, starts motor under backpressure condition, positioning when can open loop be dragged is more acurrate, so as to mention
Reliability when high frequency-changeable compressor starts under backpressure condition.
It is understood that the stator field direction of stator is that the magnetic direction of stator interior and frequency-changeable compressor can
To be piston type frequency-changeable compressor.
In an embodiment of the present invention, the stator field direction of the determining positioning stage stator, comprising:
On the stator in transduction-driven position stage mark stator field direction, wherein the stator field direction with turn
The rotor field direction marked in advance on son is corresponding；
It is described according to the stator field direction, determine on the rotor field anchor point and the armature spindle on rotor
One anchor point, comprising:
The stator field direction is marked on the armature spindle；
Determine the rotor-position of the rotor, wherein rotor field direction and labeled institute under the rotor-position
State the stator magnet that the initial angle between stator field direction marks in preset angle section, and on the armature spindle
The stator field direction marked on field direction and the stator is identical；
Label characterizes the rotor field anchor point of the rotor-position on the rotor；
The first anchor point corresponding with the rotor field anchor point is marked on the armature spindle.
In embodiments of the present invention, positioning stage stator field direction is made by frequency conversion drive it is known that and in stator and
Stator field direction is marked on armature spindle, the stator field direction on stator is identical as the rotor field direction on armature spindle
When, the relative position of rotor and armature spindle is adjusted, makes the initial angle between rotor field direction and stator field direction pre-
If angle section in (for example, angle section be [85 °, 95 °]), i.e. rotor field direction is opposite with stator field direction vertical
Directly, then to rotor and armature spindle anchor point is marked, can both makes the corresponding rotor field side of rotor after installing according to anchor point
To vertical with the stator field direction marked on armature spindle and stator.When vertical with rotor field direction due to stator field direction
Divided ring dragging is most advantageous, therefore creates good condition for open loop dragging, is remarkably improved the starting of frequency-changeable compressor back pressure
Reliability, the purpose vibrated when reducing starting so as to realize.
It is understood that rotor field direction is the magnetic direction of internal rotor.
In an embodiment of the present invention, before the stator field direction of the determining stator, further comprise:
It magnetizes in advance to rotor；
Determine the magnetic pole of the rotor after magnetizing；
Determine the identical rotor field direction of the pole orientation；
The rotor field direction is marked in the internal diameter of the rotor.
In embodiments of the present invention, magnet charger is first passed through in advance to magnetize to inverter compressor motor rotor, that is, can determine
The magnetic pole of rotor, and then can determine rotor field direction, and rotor field direction is marked in the internal diameter of rotor, it can be convenient work
Rotor field direction and the magnetic pole of rotor are determined as personnel.
In an embodiment of the present invention, the angle section is [80 °, 100 °].
In embodiments of the present invention, due to when stator field direction is vertical with rotor field direction divided ring dragging most have
Benefit, so initial angle between stator field direction and rotor field direction is when angle section is [80 °, 100 °], favorably
In the starting of backpressure condition down coversion compressor.
In an embodiment of the present invention, before the position of the determining backpressure condition lower piston, further comprise:
According to preset back pressure section, the pressure difference between piston exhaust side and air inlet side is adjusted；
The position of the determining backpressure condition lower piston, comprising:
Determine the position of the piston described under the pressure difference.
In embodiments of the present invention, in order to avoid the positioning stage under backpressure condition, rotor, which will appear, to be turned
To suitable position or at the end of positioning, the position of rotor changes, and is in backpressure condition lower piston so needing first to adjust
Position, i.e. pressure difference between adjustment piston exhaust side and air inlet side, and then can determine the piston position after adjustment pressure difference, according to
Piston position is the position that can determine crankshaft and rotor, so as to can reach and subtract in the motor assembled under starting backpressure condition
The purpose of the vibration of small frequency-changeable compressor.
In an embodiment of the present invention, the back pressure section is [0.1MPa, 0.5MPa].
It in embodiments of the present invention, is the piston position determined when [0.1MPa, 0.5MPa] according to back pressure section, and then really
The position for determining crankshaft and rotor, when starting compressor, according to the determination under backpressure condition when due to motor in compressor
What position was installed, it is possible to reduce the vibration when starting of backpressure condition frequency-changeable compressor.
In an embodiment of the present invention, it in the position according to the center location and the piston, determines on crankshaft
Crankshaft anchor point and the armature spindle on the second anchor point before, further comprise:
When determining that the crankshaft is connected with the armature spindle, the center location corresponds to the mapping point on the crankshaft；
Determine the back pressure distance between the position of the piston and the mapping point；
The position according to the center location and the piston determines crankshaft anchor point and the rotor on crankshaft
The second anchor point on axis, comprising:
When the crankshaft is connected with the armature spindle and connecting rod, determined between the crankshaft and connecting rod according to the following formula
Back pressure angle:
Wherein, the θ characterizes the back pressure angle, and the b characterizes the length of the connecting rod, and the c characterizes the crankshaft
Length, a characterizes the back pressure distance；
Determine the relative position of the crankshaft and the armature spindle under the conditions of back pressure angle；
Label characterizes the crankshaft anchor point of the relative position on the crankshaft；
It is marked on the armature spindle, the armature spindle and the crankshaft are corresponding with the crankshaft anchor point the when being connected
Two anchor points.
In embodiments of the present invention, when connecting rod is connected with piston and crankshaft, be due to the length of connecting rod and crankshaft it is known that
So can determine crankshaft and armature spindle relative position behind the position for determining backpressure condition lower piston, in crankshaft and turn
Anchor point is marked respectively on sub- axis, crankshaft is installed further according to anchor point, when starting motor under backpressure condition, can reduce frequency conversion pressure
The vibration of contracting machine on startup.
In order to which what is be more clear illustrates technical solution of the present invention and advantage, with rotor z, stator d, crankshaft q and armature spindle o
For, a kind of permanent magnet synchronous motor assemble method provided in an embodiment of the present invention is described in detail, as shown in Fig. 2, specifically
The following steps are included:
Step 201: determining the rotor field direction of the rotor z after magnetizing.
Specifically, it needs to magnetize to compressor rotor by magnet charger in advance, determines the magnetic pole of rotor z, i.e.,
It can determine the rotor field direction of rotor z.
Step 202: marking rotor field direction in the internal diameter of rotor z.
Specifically, rotor field direction is marked on rotor z, other staff can be made to pass through the rotor magnetic of label
Field direction determines the magnetic pole of rotor, and the stator field direction of stator d is determined according to the rotor field direction of label.
Step 203: according to rotor field direction, determining and mark the stator field direction of the stator d after frequency conversion drive.
Specifically, due to rotor field direction it is known that so according to rotor field direction, it can be learnt that fixed after frequency conversion drive
The stator field direction of son, and stator field direction is marked on stator and armature spindle, it can be convenient other staff confirmation
The magnetic pole of stator and stator field direction, and determine the direction of armature spindle during installation.
Step 204: determining the pressure difference between piston intake side and exhaust side whether in preset back pressure section.
Specifically, it is determined that the pressure difference between piston intake side and exhaust side can determine whether piston is in backpressure condition
Under, so as to determine the relative position position of crankshaft and armature spindle according to the position of backpressure condition lower piston.
Step 205: if pressure difference not in back pressure section, adjusts the pressure difference of exhaust side and air inlet side to back pressure section, and
Determine the position of piston.
Specifically, when piston is not under backpressure condition, needing to adjust valve makes exhaust side with air inlet side pressure difference pre-
If pressure difference section [0.1MPa, 0.5MPa] in so that piston be under backpressure condition, and position that is fixed and marking piston.
Step 206: according to the position of piston, determining the relative position of crankshaft q Yu armature spindle o.
Specifically, due to the position of piston it has been determined that and the length of length of connecting rod and crankshaft that is connected with piston and crankshaft
For it is known that it can be determined that the relative position of crankshaft and armature spindle can be in crankshaft subscript when crankshaft is connected with armature spindle
Remember crankshaft anchor point, the second anchor point corresponding with crankshaft anchor point is marked on armature spindle.
Step 207: determining the position of rotor z, wherein labeled rotor field direction and labeled stator field side
Initial angle between is in preset angle section.
Specifically, the position of rotor is adjusted, so that the initial angle between the magnetic direction of rotor and stator field direction
In angle section [80 °, 100 °], i.e., so that stator field direction and rotor field direction Relative vertical, and motor at this time
The position fixing process of starting, can make to position more acurrate, and the position of rotor will not deviate after positioning, be that the open loop of next step drags
Good condition is created, the reliability of refrigerator frequency-changeable compressor back pressure starting is remarkably improved, reduces vibration when compressor start
It is dynamic.
Step 208: the rotor field anchor point of label characterization rotor-position on rotor.
Specifically, the rotor field anchor point for characterizing this position is marked on the rotor for determine position, it can be according to mark
After the rotor field anchor point installation rotor of note, rotor field direction and stator field direction are perpendicular, so that motor opens
In dynamic position fixing process, more acurrate, to vibrate when to realizing reduction compressor start purpose is positioned.
Step 209: the first anchor point corresponding with rotor field anchor point is marked on armature spindle.
Specifically, the first anchor point of label on armature spindle can install armature spindle and rotor according to the first anchor point
Afterwards, so that rotor field direction and stator field direction are perpendicular, thus be conducive to the starting of motor.
Step 210: the crankshaft anchor point of label characterization relative position on determining crankshaft q.
Specifically, after determining the relative position of crankshaft q and armature spindle o, crankshaft anchor point is marked on crankshaft q, is convenient for
After installing crankshaft according to crankshaft anchor point, so that the piston being connected with the crankshaft after installation is under backpressure condition, thus favorably
In the starting of compressor.
Step 211: the second anchor point corresponding with crankshaft anchor point is marked on armature spindle o.
Specifically, after determining the relative position of armature spindle o and crankshaft q, according to the assembling characteristic of motor, in armature spindle o
It is upper to mark the second anchor point corresponding with crankshaft anchor point, it is convenient for according to crankshaft anchor point and the second anchor point, in armature spindle
Upper installation crankshaft can make to be under backpressure condition with the piston that is connected of crankshaft after installing, to be conducive to opening for compressor
It is dynamic.
Step 212: armature spindle o is mounted in stator d, wherein the center location of stator d is overlapped with the axle center of armature spindle o.
Specifically, according to the assembling characteristic of motor, armature spindle o needs to be mounted on the center location of stator d.
Step 213: rotor z is mounted on armature spindle o, wherein is turned on the first anchor point and rotor z on armature spindle o
Sub- Magnetic oriented point is overlapped.
Specifically, when installing rotor z on armature spindle o, by the rotor field anchor point of rotor z and the first of armature spindle o
Anchor point is overlapped, and the rotor field direction and stator field direction of rotor z after installing can be made perpendicular, thus is conducive to press
The starting of contracting machine.
Step 214: crankshaft q is mounted on armature spindle o, wherein the song on the second anchor point and crankshaft q on armature spindle o
Axis anchor point is overlapped.
It is determined when specifically, due to the anchor point of armature spindle o and crankshaft q according to the position of backpressure condition lower piston, because
The second anchor point of armature spindle o is overlapped with the crankshaft anchor point of crankshaft q, is conducive to when installing crankshaft q on armature spindle o by this
The starting of compressor under backpressure condition.
Fig. 3 is the electricity when lowering the sub- magnetic direction of adjusting and perpendicular rotor field direction by backpressure condition, after assembling
In addition the structural schematic diagram of machine also shows external piston and connecting rod in Fig. 3；
301 be piston, 302 be connecting rod, 303 be stator, 304 be rotor, 305 be armature spindle, 306 be crankshaft, 307 for turn
Son magnetic pole, 308 be the magnetic direction of stator, 309 be the coincidence point of rotor field anchor point and the first anchor point, 310 be song
The coincidence point of axis anchor point and the second anchor point, in addition, θ shown in Fig. 3 is 90 °, it is rotor field direction and stator field
Initial angle between direction.
As shown in figure 4, the embodiment of the invention provides a kind of assembling devices of permanent magnet synchronous motor, comprising:
Motor control module 401, for determining the stator field direction of positioning stage stator；Determine armature spindle described fixed
Center location in son；According to the stator field direction, determine on the rotor field anchor point and the armature spindle on rotor
The first anchor point；According to the position for the piston that the center location and piston control module 402 determine, determine on crankshaft
Crankshaft anchor point and the armature spindle on the second anchor point；
The piston control module 402, for determining the position of backpressure condition lower piston；
Module 403 is installed, for the armature spindle to be mounted on the center of circle position that the motor control module 401 determines
It sets, wherein the center location is overlapped with the axle center of the armature spindle；By the rotor and the crankshaft installed in the rotor
On axis, wherein the rotor field anchor point and first anchor point are overlapped, the crankshaft anchor point and second positioning
Point is overlapped.
In embodiments of the present invention, when assembling permanent magnet synchronous motor, motor control module is needed according to fixed installation module
Sub- magnetic direction determines corresponding rotor field anchor point and the first anchor point when installing rotor and armature spindle, then determines
Armature spindle the second anchor point corresponding with crankshaft and crankshaft anchor point, by rotor field anchor point and the first anchor point weight
It closes, crankshaft anchor point and the second anchor point are overlapped the assembling that motor can be completed.Since rotor, crankshaft and armature spindle are in back pressure
It is assembled after the anchor point that condition determines respectively, therefore, starts motor under backpressure condition, determine when can open loop be dragged
Position is more acurrate, so as to improve reliability when frequency-changeable compressor starts under backpressure condition.
In an embodiment of the present invention, the motor control module, for the stator subscript in the transduction-driven position stage
Remember stator field direction, wherein the rotor field direction marked in advance on the stator field direction and rotor is corresponding；Institute
It states and marks the stator field direction on armature spindle；Determine the rotor-position of the rotor, wherein turn under the rotor-position
Initial angle between sub- magnetic direction and the labeled stator field direction is in preset angle section, and described turn
The stator field direction marked on sub- axis and the stator field direction marked on the stator are identical；In the rotor
Upper label characterizes the rotor field anchor point of the rotor-position；Label and the rotor field anchor point on the armature spindle
Corresponding first anchor point.
As shown in figure 5, the embodiment of the invention provides a kind of permanent magnet synchronous motors, comprising: stator 501, armature spindle 502,
Crankshaft 503 and rotor 504；
The armature spindle 502 is mounted in the stator 501, wherein the center location of the stator and the armature spindle
Axle center be overlapped；
The crankshaft 503 is mounted on the armature spindle 502, wherein living by backpressure condition lower outer portion on the crankshaft
The crankshaft anchor point that the position of plug and the center location determine is determined with the stator field direction is passed through on the armature spindle
Second anchor point is overlapped；
The rotor 504 is mounted on the armature spindle 502, wherein passes through the stator magnet of the stator on the rotor
The rotor field direction anchor point that field direction determines, with pass through that the stator field direction determines on the armature spindle the
One anchor point is overlapped.
In embodiments of the present invention, when installing rotor and armature spindle, the stator field direction of stator will be passed through on rotor
The first anchor point on determining rotor field anchor point and armature spindle is overlapped, and by crankshaft installed when on armature spindle,
And the determining crankshaft anchor point of backpressure condition lower outer portion piston position will be passed through on armature spindle and determined according to stator field direction
The second anchor point be overlapped, so under backpressure condition start compressor when, positioning when can open loop be dragged is more acurrate,
So as to improve reliability when frequency-changeable compressor starts under backpressure condition.
It is understood that being equipped with the device of the permanent magnet synchronous motor, described device can be improved under the conditions of being pressed
Reliability when starting.
The each embodiment of the present invention at least has the following beneficial effects:
1, it in an embodiment of the present invention, when assembling permanent magnet synchronous motor, needs to be determined according to stator field direction
Corresponding rotor field anchor point and the first anchor point when rotor and armature spindle are installed, then determine that armature spindle and crankshaft are distinguished
Rotor field anchor point and the first anchor point are overlapped, crankshaft anchor point and the by corresponding second anchor point and crankshaft anchor point
Two anchor points are overlapped the assembling that motor can be completed.Since rotor, crankshaft and armature spindle are determined what backpressure condition determined respectively
It being assembled behind site, therefore, starts motor under backpressure condition, positioning when can open loop be dragged is more acurrate, so as to
Enough improve reliability when frequency-changeable compressor starts under backpressure condition.
2, positioning stage stator field direction in an embodiment of the present invention, is made by frequency conversion drive it is known that and fixed
Stator field direction, the stator field direction on stator and the rotor field direction phase on armature spindle are marked on son and armature spindle
Meanwhile the relative position of rotor and armature spindle is adjusted, so that the initial angle between rotor field direction and stator field direction is existed
In preset angle section (for example, angle section is [85 °, 95 °]), i.e., rotor field direction is opposite with stator field direction hangs down
Directly, then to rotor and armature spindle anchor point is marked, can both makes the corresponding rotor field side of rotor after installing according to anchor point
To vertical with the stator field direction marked on armature spindle and stator.When vertical with rotor field direction due to stator field direction
Divided ring dragging is most advantageous, therefore creates good condition for open loop dragging, is remarkably improved the starting of frequency-changeable compressor back pressure
Reliability, the purpose vibrated when reducing starting so as to realize.
3, magnet charger in an embodiment of the present invention, is first passed through in advance to magnetize to compressor rotor, that is, can determine
The magnetic pole of rotor, and then can determine rotor field direction, and rotor field direction is marked in the internal diameter of rotor, it can be convenient work
Rotor field direction and the magnetic pole of rotor are determined as personnel.
4, in an embodiment of the present invention, due to when stator field direction is vertical with rotor field direction divided ring dragging most
Favorably, so the initial angle between stator field direction and rotor field direction has when angle section is [80 °, 100 °]
Conducive to the starting of backpressure condition down coversion compressor.
5, in an embodiment of the present invention, in order to avoid the positioning stage under backpressure condition, rotor will appear not
The position of rotor changes at the end of suitable position can be gone to or positioned, and lives so needing first to adjust to be under backpressure condition
The position of plug, i.e. pressure difference between adjustment piston exhaust side and air inlet side, and then can determine the piston position after adjustment pressure difference,
It is the position that can determine crankshaft and rotor according to piston position, so that in the motor assembled under starting backpressure condition, Neng Gouda
To the purpose for the vibration for reducing frequency-changeable compressor.
It 6, is in an embodiment of the present invention, the piston position determined when [0.1MPa, 0.5MPa] according to back pressure section, into
And determine the position of crankshaft and rotor, when starting compressor, when due to motor in compressor according under backpressure condition really
What fixed position was installed, it is possible to reduce the vibration when starting of backpressure condition frequency-changeable compressor.
7, in an embodiment of the present invention, when connecting rod is connected with piston and crankshaft, since the length of connecting rod and crankshaft is
It is known that so can determine crankshaft and armature spindle relative position, in crankshaft behind the position for determining backpressure condition lower piston
With anchor point is marked on armature spindle respectively, further according to anchor point install crankshaft, under backpressure condition start motor when, change can be reduced
The vibration of frequency compressor on startup.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is existed without necessarily requiring or implying between these entities or operation
Any actual relationship or order.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or equipment for including a series of elements not only includes those elements,
It but also including other elements that are not explicitly listed, or further include solid by this process, method, article or equipment
Some elements.In the absence of more restrictions, the element limited by sentence " including a 〃 〃 ", it is not excluded that
There is also other identical factors in the process, method, article or apparatus that includes the element.
Finally, it should be noted that the foregoing is merely presently preferred embodiments of the present invention, it is merely to illustrate skill of the invention
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., are included within the scope of protection of the present invention.
Claims (10)
1. a kind of assemble method of permanent magnet synchronous motor characterized by comprising
Determine the stator field direction of positioning stage stator；
Determine center location of the armature spindle in the stator；
Determine the position of backpressure condition lower piston；
According to the stator field direction, the first positioning on the rotor field anchor point and the armature spindle on rotor is determined
Point；
According to the position of the center location and the piston, on the crankshaft anchor point and the armature spindle on crankshaft is determined
Two anchor points；
The armature spindle is mounted on the center location, wherein the center location is overlapped with the axle center of the armature spindle；
By the rotor and the crankshaft installed on the armature spindle, wherein the rotor field anchor point and described first
Anchor point is overlapped, and the crankshaft anchor point and second anchor point are overlapped.
2. assemble method according to claim 1, which is characterized in that
The stator field direction of the determining positioning stage stator, comprising:
Stator field direction is marked on the stator in transduction-driven position stage, wherein on the stator field direction and rotor
The rotor field direction marked in advance is corresponding；
It is described according to the stator field direction, determine that first on the rotor field anchor point and the armature spindle on rotor is fixed
Site, comprising:
The stator field direction is marked on the armature spindle；
Determine the rotor-position of the rotor, wherein rotor field direction under the rotor-position with it is labeled described fixed
The stator field side that initial angle between sub- magnetic direction marks in preset angle section, and on the armature spindle
To identical as the stator field direction marked on the stator；
Label characterizes the rotor field anchor point of the rotor-position on the rotor；
The first anchor point corresponding with the rotor field anchor point is marked on the armature spindle.
3. assemble method according to claim 2, which is characterized in that
Before the stator field direction of the determining stator, further comprise:
It magnetizes in advance to rotor；
Determine the magnetic pole of the rotor after magnetizing；
Determine rotor field identical with the direction of magnetic pole direction；
The rotor field direction is marked in the internal diameter of the rotor.
4. assemble method according to claim 2, which is characterized in that
The angle section is [80 °, 100 °].
5. assemble method according to claim 1, which is characterized in that
Before the position of the determining backpressure condition lower piston, further comprise:
According to preset back pressure section, the pressure difference between piston exhaust side and air inlet side is adjusted；
The position of the determining backpressure condition lower piston, comprising:
Determine the position of the piston described under the pressure difference.
6. assemble method according to claim 5, which is characterized in that
The back pressure section is [0.1MPa, 0.5MPa].
7. according to claim 1 to any assemble method in 6, which is characterized in that
In the position according to the center location and the piston, the crankshaft anchor point and the armature spindle on crankshaft are determined
On the second anchor point before, further comprise:
When determining that the crankshaft is connected with the armature spindle, the center location corresponds to the mapping point on the crankshaft；
Determine the back pressure distance between the position of the piston and the mapping point；
The position according to the center location and the piston determines on the crankshaft anchor point and the armature spindle on crankshaft
The second anchor point, comprising:
When the crankshaft is connected with the armature spindle and connecting rod, the back between the crankshaft and connecting rod is determined according to the following formula
Press angle:
Wherein, the θ characterizes the back pressure angle, and the b characterizes the length of the connecting rod, and the c characterizes the length of the crankshaft
Degree, a characterize the back pressure distance；
Determine the relative position of the crankshaft and the armature spindle under the conditions of back pressure angle；
Label characterizes the crankshaft anchor point of the relative position on the crankshaft；
It is marked on the armature spindle, corresponding with the crankshaft anchor point second determines when the armature spindle and the crankshaft are connected
Site.
8. a kind of assembling device of permanent magnet synchronous motor characterized by comprising
Motor control module, for determining the stator field direction of positioning stage stator；Determine armature spindle in the stator
Center location；According to the stator field direction, first on the rotor field anchor point and the armature spindle on rotor is determined
Anchor point；According to the position for the piston that the center location and piston control module determine, determine that the crankshaft on crankshaft is fixed
The second anchor point on site and the armature spindle；
The piston control module, for determining the position of backpressure condition lower piston；
Module is installed, for the armature spindle to be mounted on the center location that the motor control module determines, wherein institute
Center location is stated to be overlapped with the axle center of the armature spindle；By the rotor and the crankshaft installed on the armature spindle, wherein
The rotor field anchor point and first anchor point are overlapped, and the crankshaft anchor point and second anchor point are overlapped.
9. assembling device according to claim 8, which is characterized in that
The motor control module, for marking stator field direction on the stator in transduction-driven position stage, wherein described
The rotor field direction marked in advance on stator field direction and rotor is corresponding；The stator magnet is marked on the armature spindle
Field direction；Determine the rotor-position of the rotor, wherein rotor field direction under the rotor-position with it is labeled described
The stator field that initial angle between stator field direction marks in preset angle section, and on the armature spindle
The stator field direction marked on direction and the stator is identical；Label characterizes the rotor-position on the rotor
Rotor field anchor point；The first anchor point corresponding with the rotor field anchor point is marked on the armature spindle.
10. the permanent magnet synchronous motor of any assemble method assembling in a kind of claim 1 to 7, which is characterized in that packet
It includes: stator, armature spindle, crankshaft and rotor；
The armature spindle is mounted in the stator, wherein the center location of the stator is overlapped with the axle center of the armature spindle；
The crankshaft installed is on the armature spindle, wherein on the crankshaft by the position of backpressure condition lower outer portion piston and
The crankshaft anchor point that the center location determines, determines the second anchor point by the stator field direction on the armature spindle
It is overlapped；
The rotor is mounted on the armature spindle, wherein is determined on the rotor by the stator field direction of the stator
The rotor field anchor point, on the armature spindle by the stator field direction determine the first anchor point be overlapped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810140427.XA CN108134489B (en) | 2018-02-11 | 2018-02-11 | Assemble method, assembling device and the permanent magnet synchronous motor of permanent magnet synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140427.XA CN108134489B (en) | 2018-02-11 | 2018-02-11 | Assemble method, assembling device and the permanent magnet synchronous motor of permanent magnet synchronous motor |
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| CN108134489B true CN108134489B (en) | 2019-04-30 |
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| CN117646720B (en) * | 2024-01-04 | 2024-06-14 | 青岛三源泰科电子科技有限公司 | High back pressure starting adjustment method and system for piston compressor |
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| CN102788038A (en) * | 2012-08-24 | 2012-11-21 | 北京中科科仪股份有限公司 | Method for suppressing nonlinear force of magnetic suspension molecular pump |
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| CN106385117A (en) * | 2016-11-29 | 2017-02-08 | 安徽美芝制冷设备有限公司 | Motor used for compressor and compressor |
| WO2017175945A1 (en) * | 2016-04-06 | 2017-10-12 | Lg Electronics Inc. | Motor-operated compressor |
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| CN102788038A (en) * | 2012-08-24 | 2012-11-21 | 北京中科科仪股份有限公司 | Method for suppressing nonlinear force of magnetic suspension molecular pump |
| CN105190001A (en) * | 2013-03-15 | 2015-12-23 | 新动力概念有限公司 | Stirling cycle machine |
| CN104410239A (en) * | 2014-11-13 | 2015-03-11 | 广东威灵电机制造有限公司 | Motor, magnet ring magnetizing tool and magnetizing method of motor |
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| CN108134489A (en) | 2018-06-08 |
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