CN108134489A - 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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- CN108134489A CN108134489A CN201810140427.XA CN201810140427A CN108134489A CN 108134489 A CN108134489 A CN 108134489A CN 201810140427 A CN201810140427 A CN 201810140427A CN 108134489 A CN108134489 A CN 108134489A
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- armature spindle
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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 motor, including：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 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 bent axle anchor point and the armature spindle on bent axle 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 overlap, and the bent axle anchor point and second anchor point overlap.This programme can improve reliability when frequency-changeable compressor starts under backpressure condition.
Description
Technical field
The present invention relates to field of electromechanical technology, the more particularly to assemble method of permanent magnet synchronous motor, assembling device and permanent magnetism
Synchronous motor.
Background technology
Motor is the heart of compressor, and whether motor can smoothly start the operation that can influence compressor, and the group of motor
Dress then directly affects the startup of motor.
At present, the motor of refrigerator frequency-changeable compressor is permanent magnet synchronous motor, and the pump housing is piston compressor, by recent years
The continuous development of variable-frequency driving technique, unloaded and underloading startup are more perfect.But with the requirement of refrigerator machine system
Raising, the generally existing difficulty in starting under backpressure condition, vibration is big, phenomena such as hitting cylinder or even starting failure.Same frequency conversion
Plate drives the compressor with model, and some compressor north Asia startup abilities are preferable, have very poor, so that frequency-changeable compressor exists
The poor reliability started under backpressure condition.
Invention content
An embodiment of the present 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, an embodiment of the present invention provides a kind of assemble method of permanent magnet synchronous motor, including：
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 bent axle anchor point and the armature spindle on bent axle
The second anchor point；
The armature spindle is mounted on the center location, wherein, the axle center weight of the center location and the armature spindle
It closes；
By the rotor and the crankshaft installed on the armature spindle, wherein, the rotor field anchor point and described
First anchor point overlaps, and the bent axle anchor point and second anchor point overlap.
Preferably, the stator field direction for determining determining located stator, including：
Stator field direction is marked on the stator in transduction-driven position stage, wherein, the stator field direction is with turning
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, including：
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
Field direction is identical with 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.
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, including：
Determine the position of the piston 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 bent axle anchor point on bent axle is determined
Before the second anchor point on the armature spindle, further comprise：
When determining that the bent axle is connected with the armature spindle, the center location corresponds to the mapping point on the bent axle；
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 the bent axle anchor point on bent axle and the rotor
The second anchor point on axis, including：
When the bent axle is connected with the armature spindle and connecting rod, determined between the bent axle 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 bent axle
Length, a characterizes the back pressure distance；
It determines under the conditions of the back pressure angle, the relative position of the bent axle and the armature spindle；
Label characterizes the bent axle anchor point of the relative position on the bent axle；
It is marked on the armature spindle, the armature spindle and the bent axle are corresponding with the bent axle anchor point the when being connected
Two anchor points.
Second aspect, an embodiment of the present invention provides a kind of assembling device of permanent magnet synchronous motor, including：
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 of the piston that the center location and piston control module determine, the song on bent axle 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 determines of the motor control module,
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 overlap, the bent axle 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 stator field direction is corresponding with the rotor field direction marked in advance on rotor；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 in preset angle section on the armature spindle
The stator field direction is identical with the stator field direction marked on the stator；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, an embodiment of the present invention provides a kind of permanent-magnet synchronous of any assemble method assembling of first aspect
Motor, including：Stator, armature spindle, bent axle 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 overlaps；
The crankshaft installed on the armature spindle, wherein, pass through the position of backpressure condition lower outer portion piston on the bent axle
The bent axle anchor point determined with the center location is put, with determining that second is fixed by the stator field direction on the armature spindle
Site overlaps；
The rotor is mounted on the armature spindle, wherein, pass through the stator field direction of the stator on the rotor
Determining rotor field direction anchor point, with the first positioning determined on the armature spindle by the stator field direction
Point overlaps.
In embodiments of the present invention, it when assembling permanent magnet synchronous motor, needs to determine installing according to stator field direction
Corresponding rotor field anchor point and the first anchor point when rotor and armature spindle, then determine that armature spindle is corresponding respectively with bent axle
The second anchor point and bent axle anchor point, rotor field anchor point and the first anchor point are overlapped, bent axle anchor point and second is determined
Site overlaps the assembling that motor can be completed.Since rotor, bent axle and armature spindle are the anchor points that are determined respectively in backpressure condition
It assembles afterwards, therefore, starts motor under backpressure condition, can so that positioning when open loop drags is more accurate, so as to subtract
Vibration when small frequency-changeable compressor starts.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology 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 structure diagram for permanent magnet synchronous motor that one embodiment of the invention provides；
Fig. 4 is a kind of structure diagram for permanent magnet synchronous motor assembling device that one embodiment of the invention provides；
Fig. 5 is the structure diagram for another permanent magnet synchronous motor that one embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
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
The all other embodiments obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
As shown in Figure 1, an embodiment of the present invention provides a kind of assemble method of permanent magnet synchronous motor, including：
Step 101：Determine the stator field direction of positioning stage stator；
Step 102：Determine center location of the armature spindle in the stator；
Step 103：Determine the position of backpressure condition lower piston；
Step 104：According to the stator field direction, determine 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, bent axle anchor point on bent axle and described is determined
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 overlap；
Step 107：By the rotor and the crankshaft installed on the armature spindle, wherein, the rotor field positioning
Point and first anchor point overlap, and the bent axle anchor point and second anchor point overlap.
In embodiments of the present invention, it when assembling permanent magnet synchronous motor, needs to determine installing according to stator field direction
Corresponding rotor field anchor point and the first anchor point when rotor and armature spindle, then determine that armature spindle is corresponding respectively with bent axle
The second anchor point and bent axle anchor point, rotor field anchor point and the first anchor point are overlapped, bent axle anchor point and second is determined
Site overlaps the assembling that motor can be completed.Since rotor, bent axle and armature spindle are the anchor points that are determined respectively in backpressure condition
It assembles afterwards, therefore, starts motor under backpressure condition, can so that positioning when open loop drags is more accurate, so as to carry
Reliability when high frequency-changeable compressor starts under backpressure condition.
It is understood that the stator field direction of stator can for the magnetic direction and frequency-changeable compressor of stator interior
To be piston type frequency-changeable compressor.
In an embodiment of the present invention, the stator field direction of the determining positioning stage stator, including：
Stator field direction is marked on the stator in transduction-driven position stage, wherein, the stator field direction is with turning
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, including：
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
Field direction is identical with 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.
In embodiments of the present invention, by frequency conversion drive make positioning stage stator field direction be it is known that and in stator and
Stator field direction is marked on armature spindle, the stator field direction on stator is identical with 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 being installed according to anchor point
To vertical with the stator field direction marked on armature spindle and stator.Due to stator field direction it is vertical with rotor field direction when
Divided ring dragging is most advantageous, therefore creates good condition for open loop dragging, is remarkably improved the startup of frequency-changeable compressor back pressure
Reliability, so as to realize reduce start when the purpose vibrated.
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, it magnetizes beforehand through magnet charger to inverter compressor motor rotor, you can determine
The magnetic pole of rotor, and then can determine rotor field direction, and the internal diameter in rotor marks rotor field direction, can facilitate 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
Profit, so when initial angle between stator field direction and rotor field direction in angle section is [80 °, 100 °], favorably
In the startup 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, including：
Determine the position of the piston 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 adjusts the pressure difference between 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 bent axle and rotor, so that in the motor assembled under starting backpressure condition, can reach and subtract
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].
In embodiments of the present invention, the piston position that determines when being [0.1MPa, 0.5MPa] according to back pressure section, and then really
The position of bent axle and rotor is determined, when starting compressor, according to determining under backpressure condition during due to motor in compressor
What position was installed, it is possible to reduce vibration when backpressure condition frequency-changeable compressor starts.
In an embodiment of the present invention, it in the position according to the center location and the piston, determines on bent axle
Bent axle anchor point and the armature spindle on the second anchor point before, further comprise：
When determining that the bent axle is connected with the armature spindle, the center location corresponds to the mapping point on the bent axle；
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 the bent axle anchor point on bent axle and the rotor
The second anchor point on axis, including：
When the bent axle is connected with the armature spindle and connecting rod, determined between the bent axle 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 bent axle
Length, a characterizes the back pressure distance；
It determines under the conditions of the back pressure angle, the relative position of the bent axle and the armature spindle；
Label characterizes the bent axle anchor point of the relative position on the bent axle；
It is marked on the armature spindle, the armature spindle and the bent axle are corresponding with the bent axle anchor point the when being connected
Two anchor points.
In embodiments of the present invention, when connecting rod is connected with piston and bent axle, be due to the length of connecting rod and bent axle it is known that
So behind the position for determining backpressure condition lower piston, you can determine bent axle and armature spindle relative position, in bent axle and turn
Anchor point is marked respectively on sub- axis, bent axle 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 scheme of the present invention and advantage, with rotor z, stator d, bent axle 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
Include the following steps：
Step 201：Determine 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：Rotor field direction is marked in the internal diameter of rotor z.
Specifically, rotor field direction is marked on rotor z, can cause rotor magnetic of other staff by 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, the stator field direction of the stator d after frequency conversion drive is determined and marked.
Specifically, due to rotor field direction it is known that so according to rotor field direction, you can determine after learning frequency conversion drive
The stator field direction of son, and stator field direction is marked on stator and armature spindle, other staff can be facilitated to confirm
The direction of the magnetic pole and stator field direction and determining armature spindle of stator when mounted.
Step 204：Determine 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 that according to the position of backpressure condition lower piston, determine the relative position position of bent axle and armature spindle.
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, adjustment valve is needed to make 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, the relative position of bent axle q and armature spindle o are determined.
Specifically, due to the position of piston it has been determined that and the length of connecting rod and the length of bent axle that are connected with piston and bent axle
For it is known that it can be determined that when bent axle is connected with armature spindle, the relative position of bent axle and armature spindle, you can in bent axle subscript
Remember bent axle anchor point, the second anchor point corresponding with bent axle anchor point is marked on armature spindle.
Step 207：Determine 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 startup can make positioning more accurate, and the position of rotor will not deviate after positioning, be that the open loop of next step drags
Good condition is created, is remarkably improved the reliability of refrigerator frequency-changeable compressor back pressure startup, shaking when reducing 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, positioning is more accurate, so as to fulfill the purpose vibrated during compressor start is reduced.
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 are conducive to the startup of motor.
Step 210：The bent axle anchor point of label characterization relative position on bent axle q is determined.
Specifically, after the relative position for determining bent axle q and armature spindle o, bent axle anchor point is marked on bent axle q, is convenient for
After installing bent axle according to bent axle anchor point, so that the piston being connected with the bent axle after installation is under backpressure condition, so as to advantageous
In the startup of compressor.
Step 211：The second anchor point corresponding with bent axle anchor point is marked on armature spindle o.
Specifically, after the relative position for determining armature spindle o and bent axle q, according to the assembling characteristic of motor, in armature spindle o
Upper label and corresponding second anchor point of bent axle anchor point, convenient for according to bent axle anchor point and the second anchor point, in armature spindle
Upper installation bent axle can make to be under backpressure condition with the piston that is connected of bent axle after installing, so as 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 the center location mounted on stator d.
Step 213：Rotor z is mounted on armature spindle o, wherein, the first anchor point on armature spindle o on rotor z with turning
Sub- Magnetic oriented point overlaps.
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 overlaps, and can so that the rotor field direction of rotor z and stator field direction are perpendicular after installing, thus is conducive to press
Contracting machine starts.
Step 214：Bent axle q is mounted on armature spindle o, wherein, the second anchor point on armature spindle o and the song on bent axle q
Axis anchor point overlaps.
According to the location determination of backpressure condition lower piston when specifically, due to the anchor point of armature spindle o and bent axle q, because
The second anchor point of armature spindle o with the bent axle anchor point of bent axle q is overlapped, is conducive to when installing bent axle q on armature spindle o by this
The startup of compressor under backpressure condition.
Fig. 3 is the electricity after assembling when adjusting sub- magnetic direction and perpendicular rotor field direction by backpressure condition downward
In addition the structure 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 bent axle, 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, the θ shown in Fig. 3 is 90 °, it is rotor field direction and stator field
Initial angle between direction.
As shown in figure 4, an embodiment of the present invention provides a kind of assembling device of permanent magnet synchronous motor, including：
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 of the determining piston of the center location and piston control module 402, determine on bent axle
Bent axle 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 determining center of circle position of the motor control module 401
It puts, 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 overlap, the bent axle anchor point and second positioning
Point overlaps.
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 bent axle and bent axle anchor point, by rotor field anchor point and the first anchor point weight
It closes, bent axle anchor point and the second anchor point overlap the assembling that motor can be completed.Since rotor, bent axle and armature spindle are in back pressure
It is assembled after the anchor point that condition determines respectively, therefore, starts motor under backpressure condition, can to determine when open loop drags
Position is more accurate, so as to improve reliability when frequency-changeable compressor starts under backpressure condition.
In an embodiment of the present invention, the motor control module, in the stator subscript in transduction-driven position stage
Remember stator field direction, wherein, the stator field direction is corresponding with the rotor field direction marked in advance on rotor；Institute
It states and the stator field direction is marked 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 is identical with the stator field direction marked on the stator；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, an embodiment of the present invention provides a kind of permanent magnet synchronous motor, including：Stator 501, armature spindle 502,
Bent axle 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 overlap；
The bent axle 503 is mounted on the armature spindle 502, wherein, it is lived on the bent axle by backpressure condition lower outer portion
The bent axle anchor point that the position of plug and the center location determine, with being determined on the armature spindle by the stator field direction
Second anchor point overlaps；
The rotor 504 is mounted on the armature spindle 502, wherein, pass through the stator magnet of the stator on the rotor
The rotor field direction anchor point that field direction determines, with determined on the armature spindle by the stator field direction
One anchor point overlaps.
In embodiments of the present invention, when installing rotor and armature spindle, by the stator field direction by stator on rotor
The first anchor point on determining rotor field anchor point and armature spindle overlap and by crankshaft installed when on armature spindle,
And it is determined by the bent axle anchor point determined on armature spindle by backpressure condition lower outer portion piston position and according to stator field direction
The second anchor point overlap, so under backpressure condition start compressor when, can so that positioning when open loop drags is more accurate,
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 by pressure
Reliability during startup.
The each embodiment of the present invention at least has the advantages that：
1st, in an embodiment of the present invention, it 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 is distinguished with bent axle
Corresponding second anchor point and bent axle anchor point overlap rotor field anchor point and the first anchor point, bent axle anchor point and the
Two anchor points overlap the assembling that motor can be completed.Since rotor, bent axle and armature spindle are determined what backpressure condition determined respectively
It is assembled behind site, therefore, starts motor under backpressure condition, can so that positioning when open loop drags is more accurate, so as to
Enough improve reliability when frequency-changeable compressor starts under backpressure condition.
2nd, in an embodiment of the present invention, positioning stage stator field direction is made to be it is known that and fixed by frequency conversion drive
Label stator field direction, the stator field direction on stator and the rotor field direction phase on armature spindle on son and armature spindle
Meanwhile the relative position of rotor and armature spindle is adjusted, the initial angle between rotor field direction and stator field direction is made to exist
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 being installed according to anchor point
To vertical with the stator field direction marked on armature spindle and stator.Due to stator field direction it is vertical with rotor field direction when
Divided ring dragging is most advantageous, therefore creates good condition for open loop dragging, is remarkably improved the startup of frequency-changeable compressor back pressure
Reliability, so as to realize reduce start when the purpose vibrated.
3rd, in an embodiment of the present invention, it magnetizes beforehand through magnet charger to compressor rotor, you can determine
The magnetic pole of rotor, and then can determine rotor field direction, and the internal diameter in rotor marks rotor field direction, can facilitate work
Rotor field direction and the magnetic pole of rotor are determined as personnel.
4th, 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 [80 °, 100 °] is in angle section
Conducive to the startup of backpressure condition down coversion compressor.
5th, 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 adjusts the pressure difference between 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 bent axle 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.
6th, in an embodiment of the present invention, the piston position that determines when being [0.1MPa, 0.5MPa] according to back pressure section, into
And determine the position of bent axle and rotor, when starting compressor, during due to motor in compressor according under backpressure condition really
What fixed position was installed, it is possible to reduce vibration when backpressure condition frequency-changeable compressor starts.
7th, in an embodiment of the present invention, when connecting rod is connected with piston and bent axle, since the length of connecting rod and bent axle is
It is known that so behind the position for determining backpressure condition lower piston, you can bent axle and armature spindle relative position is determined, in bent axle
With anchor point is marked on armature spindle respectively, further according to anchor point install bent axle, under backpressure condition start motor when, change can be reduced
The vibration of frequency compressor on startup.
It should be noted that herein, 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, term " comprising ", "comprising" or its any other variant be intended to it is non-
It is exclusive to include, so that process, method, article or equipment including a series of elements not only include those elements,
But also it including other elements that are not explicitly listed or further includes 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
Also there is other identical factor in the process, method, article or apparatus that includes the element.
It is last it should be noted that：The foregoing is merely presently preferred embodiments of the present invention, is merely to illustrate the skill of the present 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 all contained in protection scope of the present invention.
Claims (10)
1. a kind of assemble method of permanent magnet synchronous motor, which is characterized in that including：
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 bent axle anchor point and the armature spindle on bent axle 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 overlaps, and the bent axle anchor point and second anchor point overlap.
2. assemble method according to claim 1, which is characterized in that
The stator field direction of the determining positioning stage stator, including：
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, including：
The stator field direction is marked on the armature spindle；
Determine the rotor-position of the rotor, wherein, the rotor field direction under the rotor-position is described fixed with being labeled
The stator field side that initial angle between sub- magnetic direction marks in preset angle section, and on the armature spindle
To identical with 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 the identical rotor field direction of the pole orientation；
The rotor field direction is marked in the internal diameter of the rotor.
4. according to the assemble method any in Claims 2 or 3, 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, including：
Determine the position of the piston 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 the assemble method any in claim 1 to 6, which is characterized in that
In the position according to the center location and the piston, the bent axle anchor point on bent axle and the armature spindle are determined
On the second anchor point before, further comprise：
When determining that the bent axle is connected with the armature spindle, the center location corresponds to the mapping point on the bent axle；
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 is determined on the bent axle anchor point and the armature spindle on bent axle
The second anchor point, including：
When the bent axle is connected with the armature spindle and connecting rod, the back of the body between the bent axle 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 bent axle
Degree, a characterize the back pressure distance；
It determines under the conditions of the back pressure angle, the relative position of the bent axle and the armature spindle；
Label characterizes the bent axle anchor point of the relative position on the bent axle；
It is marked on the armature spindle, corresponding with the bent axle anchor point second is fixed when the armature spindle is connected with the bent axle
Site.
8. a kind of assembling device of permanent magnet synchronous motor, which is characterized in that including：
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 of the piston that the center location and piston control module determine, determine that the bent axle on bent axle is determined
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 center location for determining the armature spindle mounted on the motor control module, wherein, institute
The axle center that center location is stated with the armature spindle overlaps；By the rotor and the crankshaft installed on the armature spindle, wherein,
The rotor field anchor point and first anchor point overlap, and the bent axle anchor point and second anchor point overlap.
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, it is described
Stator field direction is corresponding with the rotor field direction marked in advance on rotor；The stator magnet is marked on the armature spindle
Field direction；Determine the rotor-position of the rotor, wherein, the rotor field direction under the rotor-position is described with being labeled
The stator field that initial angle between stator field direction marks in preset angle section, and on the armature spindle
Direction is identical with the stator field direction marked on the stator；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. a kind of permanent magnet synchronous motor of the assemble method assembling described in claim 1 to 7, which is characterized in that including：It is fixed
Son, armature spindle, bent axle 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 on the armature spindle, wherein, on the bent axle by the position of backpressure condition lower outer portion piston and
The bent axle anchor point that the center location determines, with determining the second anchor point by the stator field direction on the armature spindle
It overlaps；
The rotor is mounted on the armature spindle, wherein, it is determined on the rotor by the stator field direction of the stator
Rotor field direction anchor point, with the first anchor point weight determined on the armature spindle by the stator field direction
It closes.
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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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| 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 CN108134489B (en) | 2019-04-30 |
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| CN117646720A (en) * | 2024-01-04 | 2024-03-05 | 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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| CN108134489B (en) | 2019-04-30 |
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