CN107534342A - Electric rotating motivation and compressor - Google Patents
Electric rotating motivation and compressor Download PDFInfo
- Publication number
- CN107534342A CN107534342A CN201580078919.5A CN201580078919A CN107534342A CN 107534342 A CN107534342 A CN 107534342A CN 201580078919 A CN201580078919 A CN 201580078919A CN 107534342 A CN107534342 A CN 107534342A
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- China
- Prior art keywords
- coiling
- core
- electric rotating
- rotating motivation
- stator
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
Abstract
The rotary electric machine for being installed on compressor has：Main shaft；Rotor, the rotor insert for main shaft；And stator, the stator have with the circular outer circumferential side for being located at rotor, stator：Core, the core are laminated multiple electromagnetic steel plates and formed；Insulator, the insulator are respectively arranged on one end and the other end in the axial direction of core；And coil, the coil are will to be formed between wire insulator at one end and the insulator of the other end via core coiling, each insulator has：Winding section, the winding section is diametrically by wire coiling；And outside wall portions, the outside wall portions are located at the outside diameter of winding section, before coiling in the state of, the inner surfaces of the outside wall portions rolls the flare rake angle tiltedly set relative to footpath axially outward.
Description
Technical field
The present invention relates to the electric rotating motivation with stator and compressor, the stator possesses what is be made up of stacked steel plate
Core.
Background technology
In recent years, as electric rotating motivation, in order to realize minitype high-performance, the series excitation of brushless DC motor has largely been used
Formula motor.Electric rotating motivation has stator in the outer circumferential side of the rotor for main shaft insertion, and the stator possesses by stacked steel plate
The core of composition.For using electric rotating motivation for the compressor of power source, from higher performance, heat resistance reinforcing and
For the oil resistivity and resistance to refrigerant of refrigerator oil and refrigerant reinforcing it is such from the viewpoint of, improve necessity of reliability
Property increase.Raising for the reliability of compressor, the generally known occupation efficiency for improving coil is effective.Accounted for as raising
The method of duty factor, it is known that by form coil wire fitly arrange and coiling in insulator correction winding (referring for example to
Patent document 1~4).
In the case where being corrected winding, in order to ensure productivity ratio, precision is advantageously controlled the wire rotated at high speed
And the motion of stacked steel plate is important.In patent document 1, a kind of method for winding is disclosed, in the method for winding,
It is provided with insulator as the guiding groove of coiling guiding piece to limit the motion of wire.In patent document 2, disclose wire
The overlapping gimmick for being wound in stator core.
In addition, the insulator described in patent document 3 is provided with the face faced with core of the protuberance prominent to internal diameter side
Recess, it is configured to roll tiltedly to external diameter in coiling so as to be formed at the inner wall part of the internal side diameter end of protuberance.It is known that as
Lower technology：By adjusting tension force during coiling as described in Patent Document 4, so as to suppress contact of the wire in coiling with insulator
Power, the destruction to wire insulation envelope is reduced, so as to the raising of reliability to be realized.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2006-115565 publications
Patent document 2：No. 478888 publications of Japanese Patent No.
Patent document 3：Japanese Unexamined Patent Publication 2013-162619 publications
Patent document 4：Japanese Unexamined Patent Publication 2010-200396 publications
The content of the invention
The invention problem to be solved
In addition, the core of stator is stacked steel plate due to being made up of as described above, so applied in the coiling of coil
Winding deflation (the Japanese that the stacking thickness of core shrinks in the axial direction is produced in the presence of power：Roll up Parties り).But in patent document 1
In structure described in~4, follow the stacking thickness change of the core caused by winding tightens, the outside wall portions of insulator can than with footpath
Rolled to orthogonal plane to internal diameter oblique.Therefore, when forming periphery of the Wire-wound of coil in outside wall portions, wire and outer wall
Portion conflicts or contact, occurs to hinder the state of affairs as the state of affairs of correction winding or the insulating film of damage wires.Therefore, the phase
The outside wall portions for suppressing insulator are hoped to hinder the coiling of coil.
The present invention be in view of above-mentioned problem and make, its object is to provide suppress insulator outside wall portions hinder coil
Coiling electric rotating motivation and compressor.
For solving the scheme of problem
The rotary electric machine of the present invention has：Main shaft；Rotor, the rotor is inserted with main shaft；And stator, the stator
With the circular outer circumferential side for being located at rotor, stator has：Core, the core are laminated multiple electromagnetic steel plates and formed；Insulator,
The insulator is respectively arranged on one end and the other end in the axial direction of core；And coil, the coil are insulation at one end
Coiling is carried out to wire via core between son and the insulator of the other end and formed, each insulator has：Winding section, it is described around
Line portion is diametrically by wire coiling；And outside wall portions, the outside wall portions are located at the outside diameter of winding section, before coiling is carried out
In the state of, the inner surface of the outside wall portions is relative to outer incline angle tilt of the footpath side axially outward to set.
Invention effect
According to the present invention, multiple insulators have outside wall portions, and the outside wall portions are before coiling is carried out, from footpath axially outward
Side is with outer incline angle tilt set in advance, so even if the stacking thickness that insulator follows the core caused by winding tightens becomes
Change and rolled tiltedly to internal diameter, because the amount at angle of inclination beyond outside wall portions rolls tiltedly to external diameter, so insulator can be suppressed
Outside wall portions hinder the coiling of coil.
Brief description of the drawings
Fig. 1 is the longitudinal section for the compressor for showing schematically embodiments of the present invention 1.
Fig. 2 is the longitudinal section for showing schematically the electric rotating motivation that Fig. 1 compressor has.
Fig. 3 is the sectional elevation along Fig. 2 line A-A.
Fig. 4 is the vertical profile of the state before the coiling in the construction for show schematically the stator that Fig. 1 rotary electric machine has
View.
Fig. 5 is the vertical profile of the state after the coiling in the construction for show schematically the stator that Fig. 1 rotary electric machine has
View.
Before Fig. 6 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 2 contains
The longitudinal section of state.
After Fig. 7 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 2 contains
The longitudinal section of state.
Before Fig. 8 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 3 contains
The longitudinal section of state.
After Fig. 9 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 3 contains
The longitudinal section of state.
Before Figure 10 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 4 contains
The longitudinal section of state.
After Figure 11 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 4 contains
The longitudinal section of state.
Before Figure 12 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 5 contains
The longitudinal section of state.
After Figure 13 is the coiling in the construction for show schematically the stator that the compressor of embodiments of the present invention 5 contains
The longitudinal section of state.
Figure 14 is that the vertical profile of the state before the coiling in the construction for show schematically the stator that conventional compressor contains regards
Figure.
Figure 15 is that the vertical profile of the state after the coiling in the construction for show schematically the stator that conventional compressor contains regards
Figure.
Figure 16 is the longitudinal section of the problem involved by inner wall part and outside wall portions for illustrating Figure 15 rotor.
Figure 17 is the longitudinal section for illustrating the problem involved by the winding section of Figure 15 rotor.
Embodiment
[embodiment 1]
Fig. 1 is the longitudinal section for the compressor for showing schematically present embodiment 1.Compressor 10 is for example by screw compressor
Form, be the kind of refrigeration cycle for the various industrial machines such as refrigerator, freezer, air-conditioning device, refrigeration facility and water heater
One of inscape.Compressor 10 sucks the refrigerant circulated in kind of refrigeration cycle, is compressed and makes it high as high temperature
The state of pressure and discharge.
As shown in figure 1, compressor 10 has：Closed container 20, the closed container 20 form the outer wheels of compressor 10
It is wide；Refrigerant gas is drawn into closed container 20 by suction line 30, the suction line 30；And discharge pipe 40, the discharge pipe
40 discharge the refrigerant gas after compression.Compressor 10 has in closed container 20：Compression mechanical part 50, the compressor
The compression refrigerant of structure portion 50；Electric rotating motivation 60, the electric rotating motivation 60 makes the rotation driving of main shaft 21, so as to drive compressor
Structure portion 50；And oil pump 22, the oil pump 22 are impregnated in lubricating oil 22a located at the end of the side of electric rotating motivation 60 of main shaft 21.
Closed container 20 is made up of the housing or casing of hermetic type, houses compression mechanical part 50 and electric rotating motivation 60.Main shaft 21
By the rotation driving of electric rotating motivation 60.
Compression mechanical part 50 has：Fixed scroll 51, the fixed scroll 51 are provided with fixed scroll body 51a；And
Scroll 52 is swung, the swing scroll 52, which is provided with, swings scroll body 52a.Electric rotating motivation 60 has：Rotor 61, described turn
Son 61 inserts for main shaft 21；And stator 70, the stator 70 is with the circular outer circumferential side for being located at rotor 61.Stator 70 has：
Core 71, the core 71 are laminated multiple electromagnetic steel plates and formed；Insulator 80, the insulator 80 are respectively arranged on the axle of core 71
Upward one end and the other end；And coil 72, the coil 72 are the insulators of insulator 80 at one end and the other end
Coiling is carried out to wire via core 71 between 80 and formed.Core 71 is stacked steel plate, is to be laminated multiple electromagnetic steel plates and form
's.The wire for forming coil 72 is for example made up of electromagnetic wire, and its surface is by insulating film covering (not shown).
In addition, compressor 10 has hermetic terminal 24, the hermetic terminal 24 is welded in closed container 20, for that will draw
Line 23 is fetched into the outside of closed container 20 from the stator 70 of electric rotating motivation 60, is electrically connected with external power source.In addition, in Fig. 1
In, as compressor 10, exemplified with the hermetic type screw compressor of longitudinal type, but the hermetic type of horizontal arrangement type can also be used to be vortexed
Compressor.In addition, as compressor 10, blade-tape compressor can also be used.
Next, the action to compressor 10 illustrates.When being energized to hermetic terminal 24, stator 70 and rotor 61 produce
Raw torque, main shaft 21 rotate.When main shaft 21 rotates, the swing scroll 52 combined with main shaft 21 starts to rotate, with fixed whirlpool
The co-operating of rotating part 51 and start the compression of refrigerant gas.Now, refrigerant gas is attracted from suction line 30, is flowed into close
Close in container 20, sucked and compressed by the compression mechanical part 50 formed by fixed scroll 51 and swing scroll 52, afterwards
The refrigerant loop of the outside of closed container 20 is discharged to via discharge pipe 40.In addition, when main shaft 21 rotates, oil pump 22 is driven
Attract lubricating oil 22a, be lubricated by the fuel feeding path 21a, fuel feeding to each bearing etc. in main shaft 21, afterwards again
Return to the bottom of closed container 20.
Next, reference picture 2 and Fig. 3, enter in more detail to the rotor 61 and stator 70 for forming electric rotating motivation 60
Row explanation.Fig. 2 is the longitudinal section for showing schematically the electric rotating motivation 60 that compressor 10 has.Fig. 3 is the A-A along Fig. 2
The sectional elevation of line.Stator 70 has the core 71 of ring-type, and the core 71 of the ring-type will be made up of high permeability materials such as iron
What electromagnetic steel plate was laminated.Core 71 has：The back yoke portion 71a of ring-type；And multiple teeth portion 71b, the multiple teeth portion 71b from
Back yoke portion 71a is prominent to internal diameter side.Multiple teeth portion 71b are circumferentially configured.In teeth portion 71b axial one end and the other end
Insulator 80 is each configured with, the insulator 80 is formed by ester moulding.Coil 72, lead are wound with insulator 80
23 are connected to coil 72, and the lead 23 is the connecting line being connected with power supply.Coil 72 (is joined via the winding section 81 of insulator 80
According to Fig. 4) coiling is in teeth portion 71b.
Rotor 61 has：Boss 61a, the boss 61a be by the steel plate being made up of high permeability materials such as iron stacking and
Into；Peripheries of the magnet insertion holes 61b, the magnet insertion holes 61b along boss 61a is provided with and magnetic pole phase in a circumferential direction
When quantity；Permanent magnet 61c, it is embedded in magnet insertion holes 61b, forms the field pole of electric rotating motivation 60；And end
Plate 61d, the end plate 61d is made up of nonmagnetic material, located at boss 61a axial both ends.In addition, rotor 61 has：It is flat
Weighed counterweight 61e, and the counterweight 61e is disposed on the one end in boss 61a axial direction or the end plate 61d at both ends；
And rivet 61f, rivet 61f insertion boss 61a, end plate 61d and the counterweight 61e.That is, in rotor 61, end plate
61d, boss 61a and counterweight 61e are fastened by rivet 61f.
Next, reference picture 4 and Fig. 5, the structure of insulator 80 is specifically described.Fig. 4 is to show schematically electric rotating
The longitudinal section of the state before coiling in the construction for the stator 70 that motivation 60 has.Insulator 80 has winding section (insulator
Teeth portion) 81, the winding section 81 makes coil 72 and teeth portion 71b insulate, form the wire of coil 72 diametrically coiling in this around
Line portion 81.In addition, at insulator 80, tooth is respectively arranged on to the inner wall part 82 and outside wall portions 83 extended from the direction that core 71 leaves
Portion 71b internal side diameter and outside diameter.In present embodiment 1, winding section 81 mutually connects with inner wall part 82, winding section 81 with it is outer
Wall portion 83 also mutually connects.
Inner wall part 82 prevents coil 73 from collapsing (Japanese to internal side diameter：Collapse れ Ru), outside wall portions 83 prevent coil 73 to external diameter
Side collapses.Therefore, inner wall part 82 and the axial height of outside wall portions 83 are higher than the axial height of winding section 81.In addition, for interior
For the height of wall portion 82 and outside wall portions 83, outside wall portions 83 are typically set to that the situation higher than inner wall part 82 is more, in Fig. 4
And same structure is show also in Fig. 5, but it is not limited to this.That is, for example, it is also possible to by inner wall part 82 and outside wall portions 83
It is set as equal height, inner wall part 82 can also be set to higher than outside wall portions 83.Outside wall portions 83 are located at the outer of winding section 81
Footpath side, under the state (before coiling) before carrying out coiling, relative to footpath side axially outward with flare rake angle set in advance
θoTilt.That is, outside wall portions 83 are relative to tilt angle theta beyond the plane S orthogonal with radial directionoTilt.Outer incline angle, θoIt is configured to
Benchmark tilt angle thetaMAXMore than, the benchmark tilt angle thetaMAXIt is according to the stacking thickness of core 71 and stacking number and fixed
The external diameter and internal diameter of son 70 are come obtained from calculating.
Fig. 5 is that the vertical profile of the state after the coiling in the construction for show schematically the stator 70 that electric rotating motivation 60 has regards
Figure.Winding during by the core 71 after coiling due to coiling, which tightens, causes stacking thickness to be reduced with being gone towards internal side diameter, phase
Tilt angle theta is formed for plane T (contact surface of core 71 and insulator 80 before coiling) orthogonal to the axial direction.
Herein, to tilt angle theta and benchmark tilt angle thetaMAXIllustrate.The amount tightened is wound not due to core 71
It can turn into more than the summation in gap between the stacking of core 71 being made up of stacked steel plate, so the maximum as tilt angle theta
Benchmark tilt angle thetaMAXIt can be obtained by following formula 1.
[formula 1]
In above-mentioned formula 1, H [mm] is the stacking thickness of the core 71 as stacked steel plate.X [opening] is the electromagnetism for forming core 71
The stacking number of steel plate.δ [mm] is the gap (gap between stacking) between the electromagnetic steel plate of stacking.For stator 70
External diameter,For the internal diameter of stator 70.For the outer incline angle, θ of present embodiment 1oFor, in order to avoid forming
The wire of coil 72 contacts with insulator 80, and as the benchmark tilt angle theta that will be obtained by formula 1MAXSetting as lower limit
(θo≥θMAX).In addition, tilt angle theta turns into benchmark tilt angle thetaMAX(θ≤θ belowMAX)。
When core 71 due to winding tightens and during gradient angle, θ, outside wall portions 83 also follow the inclination of core 71 and inside
Footpath rolls oblique tilt angle theta.But the outside wall portions 83 in present embodiment 1 are that have to be used as benchmark in outside diameter before coiling
Tilt angle thetaMAXOuter incline angle, θ aboveoThe inclined shape of amount, so outside wall portions 83 will not be located at the rotation rail of wire
On road.That is, as shown in figure 5, the side (inner surface) of plane T orthogonal to the axial direction and the internal side diameter of outside wall portions 83 institute into
Angle be less than 90 degree.Therefore, it is possible to avoid in the coiling based on correction winding, what is wound near outside wall portions 83 leads
Line contacts with outside wall portions 83.
As described above, multiple insulators 80 of electric rotating motivation 60 have outside wall portions 83, described before coiling is carried out
Outside wall portions 83 roll oblique outer incline angle, θ relative to footpath axially outwardo.Therefore, even if insulator 80 follows winding and tightens institute
The stacking thickness change of the core of cause and rolled to internal diameter it is oblique, because outside wall portions 83 to external diameter roll oblique outer incline angle, θoAmount,
So the coiling that outside wall portions 83 hinder coil 72 can be suppressed.Therefore, according to electric rotating motivation 60, can avoid be wound in around
The wire in line portion 81 and outside wall portions 83 conflict for main cause the random line of winding and wire surface insulating film damage
Wound.
That is, according to electric rotating motivation 60 and compressor 10, high-precision correction winding can be realized, so can realize
The raising of moyor.Further, since wire does not contact with outside wall portions 83, so can make threading speed high speed, so energy
Enough realize the raising of productivity ratio.The manufacture deterioration of the insulating film of wire can also be suppressed, so carrying for reliability can be realized
It is high.
In the compressor 10 for carrying electric rotating motivation 60, temperature environment in compressor 10 by refrigerant gas or
The influence of the heating of stator 70 etc..Therefore, according to operating condition, the temperature in compressor 10 may be -50 DEG C~150 DEG C, institute
To need to ensure reliability in wide temperature band.For the wire of the coil 72 covered by the insulating film based on resin material
For, it particularly must assure that reliability during high temperature, it is necessary to the damage of insulating film when avoiding coiling.
Particularly, according to nearest refrigerant trend, mix refrigerant, such as HFC- comprising HFO-1123 are being used
During 32 refrigerant, it is desirable to which the temperature tackled in compressor 10 rises, it is desirable to moyor is improved by high-precision correction winding,
The damage of insulating film during by reducing coiling improves reliability, and the HFO-1123 has the temperature and pressure during compression
Power rises the contour property of R410A, R407C, R404A refrigerant used than ever.
For this point, in the electric rotating motivation 60 and compressor 10 in present embodiment 1, caused by consideration coiling
The deformation of core 71, outside wall portions 83 are made to tilt outer incline angle, θ in advanceo, so can precision be corrected winding well, so
The raising of moyor can be realized.In addition, insulating film damage when can prevent coiling, so improving reliability.Cause
This, compressor 10 can be used by the HFO-1123 unitary system cryogens formed or the mix refrigerant comprising HFO-1123
Deng being used as the refrigerant circulated in kind of refrigeration cycle.
In addition, in Fig. 4 and Fig. 5 example, the entirety for being configured to outside wall portions 83 is in outer incline angle, θo, but can also
The side (contact surface with coil 72) for being configured to the only internal side diameter of outside wall portions 83 is in outer incline angle, θo.That is, outside wall portions 83
Section for example can also be taper.In addition, the side of the internal side diameter of outside wall portions 83 can also be the curved surface to external diameter lateral bend.I.e.
Make to use above-mentioned each structure, the wire that can also prevent from forming coil 72 contacts with insulator 80.
Alternatively, it is also possible to be configured to only conflict with forming the wire of coil 72 the one of the side of the internal side diameter of outside wall portions 83
Part is in outer incline angle, θo.That is, such as leading section of outside wall portions 83 and the outside wall portions 83 can also with the contact site of coil 72
In different angles of inclination, in addition, the side of the internal side diameter of outside wall portions 83 and outside diameter can also be curved surface.So also can
Prevent wire from conflicting with insulator 80.But the thickness of outside wall portions 83 needs the strong of the tension force when considering that coiling can be born
Set on the basis of release property and burn when degree and shaping etc..
[embodiment 2]
Then, based on Fig. 6 and Fig. 7, the electric rotating motivation of present embodiment 2 is illustrated.Fig. 6 and Fig. 7 difference
Before the coiling in the construction for show schematically the stator that the compressor of present embodiment 2 contains and coiling after state it is vertical
Sectional view.For with for the identical structure member of embodiment 1, using identical reference, omitting the description.
The insulator 180 of present embodiment 2 has：Winding section 181, the winding section 181 are configured the wire of coil 72
Coiling；Inner wall part 182, the inner wall part 182 is located at the internal side diameter of winding section 181, before coiling, relative to footpath side axially outward
Tilt tilted angle, θ set in advancei；Outside wall portions 83, the outside wall portions 83 are located at the outside diameter of winding section 181, relative to
The plane S orthogonal with radial direction tilts outer incline angle, θo.The inner surface of inner wall part 182 has the interior lower edge positioned at the side of core 71
The portion 182a and interior Inner Front End portion 182b positioned at front end.
The tilted angle, θ of inner wall part 182iAs long as to avoid angle, θ d as under using can avoid contacting with rotor 61
Limit value and the benchmark tilt angle theta that will be obtained by above-mentioned formula 1MAXSetting (θ d≤θ as higher limiti≤θMAX).In addition,
By benchmark tilt angle thetaMAXTilted angle, θ is set as lower limitiSituation (θi>θMAX) under, inner wall part 182 turns into
The state being projected on the swing-around trajectory of the wire of coiling in its vicinity, so wire can not be avoided to conflict with insulator 180.
In addition, setting can avoid what is contacted with rotor 61 from avoiding angle, θ d so that inner wall part 182 before coiling it is interior
The distance of interior lower edge portion 182a and interior Inner Front End portion 182b radial direction is inwall internal oblique amount DiFor rotor 61 with it is interior under
Edge part 182a distance (beeline with rotor 61) Dmin(D abovemin≤Di).If so set, after coiling
The rotor 61 and interior Inner Front End portion 182b distance of radial direction just turn into more than 0, so inner wall part 182 can be prevented to internal side diameter
It is prominent, avoid rotor 61 from being contacted with inner wall part 182.
For the insulator 180 in present embodiment 2, before coiling is carried out, inner wall part 182 to
External diameter direction tilts tilted angle, θ in advancei, outside wall portions 83 tilt outer incline angle, θ to the outer directiono.Therefore, it is possible to avoid
Inner wall part 182 and outside wall portions 83, the conductive contact with coilings near them.That is, as shown in fig. 7, with axial direction just
The side angulation of the internal side diameter of the side and outside wall portions 83 of the plane T of friendship and the outside diameter of inner wall part 182 turns into 90
Below degree.In addition, insulator 180 is configured to inwall internal oblique amount DiFor the distance of rotor 61 and interior lower edge portion 182a
DminMore than, so rotor 61 can be avoided to be contacted with inner wall part 182.
Therefore, the electric rotating motivation and compressor in present embodiment 2, can realize the correction of higher precision around
Group, so the raising of moyor can be realized.In addition, wire does not contact with inner wall part 182 and outside wall portions 83, so can
Realize the raising of the productivity ratio of the high speed based on threading speed.Moreover, the manufacture deterioration of the insulating film of wire can be suppressed,
So with rotor 61 can be avoided to contact such effect with inner wall part 182, the raising of reliability can be realized.
In addition, in Fig. 6 and Fig. 7 example, the entirety for employing inner wall part 182 is in tilted angle, θiSuch knot
Structure, but can also individually set the side of the inclination of the side of the outside diameter of inner wall part 182 and the internal side diameter of inner wall part 182
Tilt.That is, as long as the angle of inclination of the side of the internal side diameter of inner wall part 182, which is set to after coiling, makes interior Inner Front End portion 182b not
Contacted with rotor 61.In addition, as long as be set to can be in θ at the angle of inclination of the side of the outside diameter of inner wall part 182i<θ's
In the range of avoid and conductive contact during coiling.
Alternatively, it is also possible to be configured to only conflicting with forming the wire of coil 72 for the side of the outside diameter of inner wall part 182
A part is in tilted angle, θi.That is, for example, the leading section of inner wall part 182 from the contact site of coil 72 can also be in different
Angle of inclination, in addition, the side of the internal side diameter of inner wall part 182 and outside diameter can also be curved surface.It so can also prevent from leading
Line conflicts with insulator 80, and rotor 61 can be avoided to be contacted with inner wall part 182.But in the case of as described above form,
Release property and burn when the intensity of tension force of the thickness needs of inner wall part 182 when considering that coiling can be born and shaping etc.
On the basis of set.
[embodiment 3]
Then, based on Fig. 8 and Fig. 9, the electric rotating motivation of present embodiment 3 is illustrated.Fig. 8 and Fig. 9 difference
Before the coiling in the construction for show schematically the stator that the compressor of present embodiment 3 contains and coiling after state it is vertical
Sectional view.For with for the identical structure member of embodiment 1 and 2, using identical reference, omitting the description.
The insulator 280 of present embodiment 3 has：Winding section 281, the winding section 281 is by wire coiling；Inner wall part
182, the inner wall part 182 is located at the internal side diameter of winding section 281, before coiling, is rolled relative to footpath axially outward tiltedly tilted
Angle, θi；And outside wall portions 83, the outside wall portions 83 are located at the outside diameter of winding section 281, relative to the plane S orthogonal with radial direction
Tilt outer incline angle, θo.In addition, the tilted angle, θ for inner wall part 182iAnd the outer incline angle, θ of outside wall portions 83o's
It is identical with above-mentioned embodiment 1 and 2 for setting.
In addition, in present embodiment 3, the thickness for being configured to winding section 281 is thickening towards internal side diameter.That is, winding section 281
Axial coiling face 281a relative to plane T-shaped orthogonal to the axial direction into tilt angle theta t in coiling face set in advance.At this
In embodiment 3, the component of tension force diametrically during in order to not produce coiling, coiling face tilt angle theta t and benchmark are set to
Tilt angle thetaMAXEqual (θ t=θMAX)。
For the insulator 280 in present embodiment 3, before coiling is carried out, inner wall part 182 to
External diameter direction tilts tilted angle, θi, outside wall portions 83 tilt outer incline angle, θ to the outer directiono, so inner wall part can be avoided
182 and outside wall portions 83 with they nearby coilings conductive contact.In addition, insulator 280 is configured to inwall internal oblique amount
Di is rotor 61 and interior lower edge portion 182a distance DminMore than, so rotor 61 can also be avoided to be connect with inner wall part 182
Touch.
In present embodiment 3, the axial coiling face 281a of winding section 281 is in relative to plane T orthogonal to the axial direction
Coiling face tilt angle theta t.Therefore, it is possible to be configured to coiling face 281a and plane orthogonal to the axial direction after coiling as shown in Figure 9
T is parallel.That is, the contraction of the core 71 when winding section 281 follows coiling and tilt, so as to after coiling coiling face tilt angle theta t
It is cancelled, coiling face 281a turns into the state parallel with plane T.In addition, the amount that winding during coiling tightens is in wound around coil 72
First layer time point it is stable, substantially constantization in the layer after the coiling second layer.That is, in coiling first layer
Time point, coiling face 281a turn into the state almost parallel with plane T.Therefore, according to the electric rotating motivation of present embodiment 3,
Can be in the state of coiling face 281a and plane T be almost parallel, the later layer of the coiling second layer, so can prevent radially
The component of tension force during upper generation coiling, it can prevent coiling from skidding and the state of affairs as coiling collapse occurs.
More than, electric rotating motivation and compressor in present embodiment 3, can realize the correction of higher precision around
Group, so the raising of moyor can be realized.Further, since wire does not contact with inner wall part 182 and outside wall portions 83, so
The raising of the productivity ratio of the high speed based on threading speed can be realized.Moreover, the manufacture of the insulating film of wire can be suppressed
Deterioration, additionally it is possible to avoid contacting with rotor 61, so the raising of reliability can be realized.In addition, understand to be made up of stacked steel plate
The stacking thickness of core 71 be not limited to the amount of the gap delta between coiling after-contraction all stacking, the outside diameter of core 71 can also shrink.Cause
This, coiling face tilt angle theta t can also be set to than benchmark tilt angle thetaMAXSmall constant angle set in advance.
[embodiment 4]
Then, based on Figure 10 and Figure 11, the electric rotating motivation of present embodiment 4 is illustrated.Figure 10 and Figure 11
Before the coiling in the construction for show schematically the stator that the compressor of present embodiment 4 contains respectively and coiling after state
Longitudinal section.The rotary electric machine of present embodiment 4 has following characteristics：Meet conflicting for insulator and wire during coiling
Amplitude is necessary condition of less than half such correction winding of the line footpath of wire.For with the identical knot of embodiment 1~3
For structure part, using identical reference, omit the description.
The insulator 380 of present embodiment 4 has：Winding section 381, the winding section 381 is by wire coiling；Inner wall part
82, the inner wall part 82 is located at the internal side diameter of winding section 381；And outside wall portions 383, the outside wall portions 383 are located at winding section 381
Outside diameter, tilt outer incline angle, θ set in advance relative to radially orthogonal plane So.The inner surface tool of outside wall portions 83
There are the outer interior lower edge portion 383a and the outer Inner Front End portion 383b positioned at front end positioned at the side of core 71.Core 71 after coiling due to
The influence for the tension force that winding during coiling tightens, stacking thickness is reduced with being gone towards internal side diameter, relative to orthogonal to the axial direction
The inclined angle, θs of plane T.
Outer incline angle, θoCounted than the external diameter and internal diameter of the stacking thickness according to core 71 and stacking number and stator
Benchmark tilt angle theta obtained from calculationMAX(θ0<θMAX) small, also, the outer interior lower edge portion 383a of the outside wall portions 383 after coiling
Distance with outer Inner Front End portion 383b radial direction is outer wall internal oblique amount DoIt is set as below the radius of wire.
Herein, when the height of the side (contact surface with coil 72) of the internal side diameter of outside wall portions 383 is set into L0When, outer wall
Internal oblique amount DOL can be expressed as0× sin (θ-θ0).That is, in present embodiment 4, it is set to by the radius of wireWhen, set outer incline angle, θoSo thatSuch relation is set up, so as to
Can be by outer wall internal oblique amount DOIt is set to below the radius of wire.Therefore, it is possible to rushing insulator and coiling during coiling
Prominent amplitude is suppressed to less than half of the line footpath of wire, so can realize around linear raising, and ensures the insulation of wire
The reliability of envelope.
[embodiment 5]
Then, based on Figure 12 and Figure 13, the electric rotating motivation of present embodiment 5 is illustrated.Figure 12 and Figure 13
After being respectively state and the coiling before the coiling in the construction for show schematically the stator that the compressor of present embodiment 5 contains
State longitudinal section.For with for the identical structure member of embodiment 1~4, using identical reference, omitting
Explanation.
The insulator 480 of present embodiment 5 has：Winding section 481, the winding section 481 is by wire coiling；Inner wall part
482, the inner wall part 482 is located at the internal side diameter of winding section 381, before coiling, rolls relative to footpath axially outward and tiltedly sets in advance
Fixed tilted angle, θi；And outside wall portions 83, the outside wall portions 83 are located at the outside diameter of winding section 481.Outside inner wall part 482
Surface has the inside and outside lower edge portion 482a and the inside and outside leading section 482b positioned at front end positioned at the side of core 71.Core after coiling
71 due to coiling when winding tighten tension force influence, stacking thickness reduced with being gone towards internal side diameter, relative to axle
To the orthogonal inclined angle, θs of plane T.
Tilted angle, θiCounted than the external diameter and internal diameter of the stacking thickness according to core 71 and stacking number and stator
Benchmark tilt angle theta obtained from calculationMAX(θ greatlyi>θMAX), also, the inside and outside lower edge portion 482a of the inner wall part 482 after coiling
Distance with inside and outside leading section 482b radial direction is that inwall external diameter tilt quantity Dio is set as below the radius of wire.
Herein, when the height of the side (contact surface with coil 72) of the outside diameter of inner wall part 482 is set into LiWhen, inwall
External diameter tilt quantity Dio can be expressed as Li×sin(θi- θ).That is, in embodiment 5, tilted angle, θ is setiSo thatSuch relation is set up, so as to which inwall external diameter tilt quantity Dio to be set to lead
Below the radius of line.Therefore, it is possible to which insulator to be suppressed to the half of the line footpath of wire with the amplitude that conflicts of coiling during coiling
Hereinafter, so can realize around linear raising, and the reliability of the insulating film of wire is ensured.
(effect of embodiment 1~5)
Herein, 14~Figure 17 of reference picture, be described in more detail by the electric rotating motivation in above-mentioned embodiment 1~5 and
The effect that compressor obtains.Figure 14 and Figure 15 is in the construction for show schematically the stator that conventional compressor contains respectively
The longitudinal section of state before coiling and after coiling.Figure 16 is the inner wall part and outside wall portions institute for illustrating Figure 15 rotor
The longitudinal section for the problem being related to.Figure 17 is the longitudinal section for illustrating the problem involved by the winding section of Figure 15 rotor.
First, winding deflation is illustrated.The core 71 being made up of stacked steel plate is to be laminated multiple electromagnetic steel plates
And form, so producing gap delta between some stackings between each electromagnetic steel plate.In coiling, the tension force conduct of wire is put on
The external force of compressed core 71 plays a role in the axial direction, so gap delta narrows between stacking, so, using the total backlash amount of core 71 to be upper
Limit, shrinks in core 71.The contraction is to wind to tighten.In addition, coil 72 is applied only to the teeth portion 71b of core 71, so
Wind deflation amount and become big from back yoke portion 71a to teeth portion 71b front end, so core 71 turns into the inclined shape of radially inward.This
Outside, as described above, tightening in winding has after the time point winding deflation amount stabilization of coiling first layer, the second layer substantially
Such feature is not changed.
The method tightened as the winding for suppressing core 71, it is known that following method：It is provided with the electromagnetic steel plate for forming core more than 71
The circle of individual point or the ca(u)lk (Japanese of V-shaped：カ シ メ) portion, pressure is applied to be held back by punching press etc. in stacking
Seam, so as to radially and be axially fixed on the two directions.But even with the above method, because pressure discharges
Resilience afterwards, so being difficult to make winding tighten as 0.In addition, it is also known that by increasing the intrusion or quantity in ca(u)lk portion, from
And ca(u)lk power is improved, and suppress resilience, the method for reducing gap between stacking, but adding the intrusion in ca(u)lk portion or quantity
In the case of, increase caused axial vortex flow, moyor in stacked steel plate in the driving of electric rotating motivation can be produced
Problem as decline.Therefore, it is desirable to mitigate electric rotating motivation as the above-mentioned embodiment 1~5 for the influence that winding tightens.
In addition, the outside wall portions 983 of insulator 980 are preferably parallel with swing-around trajectory R during coiling.Therefore, in the past, such as Figure 14
It is shown, before coiling in the state of, formed with insulator 980 in a manner of making outside wall portions 983 parallel with swing-around trajectory R.But
In winding process, winding is produced as described above and is tightened, for the amount of contraction of core 71, internal side diameter is bigger than outside diameter.Therefore,
Also diametrically tilted therewith in the posture for the insulator 980 that one end of core 71 and the other end are set as winding stand.That is,
As shown in figure 15, winding section 981, inner wall part 982 and outside wall portions 983 also tilt the axial end of core 71 relative to axially just
The amount for the tilt angle theta that the plane T of friendship is in.
Therefore, in conventional structure, in coiling, the wire 72a of coil 72 is being formed by near outside wall portions 983
When (reference picture 16), wire 72a conflicts with insulator 980 at high speed, so the motion of uncontrollable coiling, can not be corrected
Winding.Further, since wire 72a conflict with outside wall portions 983 and can damage wires 72a insulating film, so exist productivity ratio,
The problem of reliability these two aspects.Further, in conventional structure, inner wall part 982 with the internal diameter of stator 70 it is protruded above and with
Rotor 61 contacts.In addition, as shown in figure 17, the winding that winding section 981 follows core tightens and tilted, so when producing coiling
The component TSd of tension force TS and the direction slid to coiling to axial direction.Therefore, the wire 72a of coiling is to component TSd direction
Skid, coiling collapse occurs.
For this point, electric rotating motivation and compressor in the respective embodiments described above, due to multiple insulators
80th, 180,280,380 and 480 have outside wall portions, and before coiling, the outside wall portions are rolled relative to footpath axially outward and tiltedly set in advance
Fixed outer incline angle, θo, so even if insulator 80,180,280,380 and 480 follows the core 71 caused by winding tightens
Stacking thickness change and rolled to internal diameter oblique, outside wall portions 83 and 383 also roll oblique outer incline angle, θ to external diameteroAmount, institute
The damage for the wire 72a that tiltedly, can prevent from forming coil 72 is rolled to internal diameter due to winding tightens so that outside wall portions can be suppressed
Wound etc..
In addition, the respective embodiments described above are the preferable concrete examples in electric rotating motivation and compressor, guarantor of the invention
Shield scope is not limited to these modes.For example, in the respective embodiments described above, with benchmark tilt angle thetaMAXOn the basis of, setting
Outer incline angle, θoAnd tilted angle, θi, but this is not limited to, can also be with to benchmark tilt angle thetaMAXAdd or
On the basis of value obtained from subtracting defined threshold value (amount of contraction according to gap delta between stacking etc. and determine threshold value), setting is outside
Tilt angle thetaoAnd tilted angle, θi。
Description of reference numerals
10：Compressor；20：Closed container；21：Main shaft；21a：Fuel feeding path；22：Oil pump；22a：Lubricating oil；23：Draw
Line；24：Hermetic terminal；30：Suction line；40：Discharge pipe；50：Compression mechanical part；51：Fixed scroll；51a：Fixed scroll
Body；52：Swing scroll；52a：Swing scroll body；60：Electric rotating motivation；61：Rotor；61a：Boss；61b：Magnet inserts
Hole；61c：Permanent magnet；61d：End plate；61e：Counterweight；61f：Rivet；70：Stator；71：Core；71a：Back yoke portion；71b：Tooth
Portion；72：Coil；72a：Wire；73：Coil；80、180、280、380、480、980：Insulator；81、181、281、381、481、
981：Winding section；82、182、482、982：Inner wall part；83、383、983：Outside wall portions；182a：Interior lower edge portion；182b：It is interior
Inner Front End portion；281a：Coiling face；383a：Lower edge portion in outer；383b：Outer Inner Front End portion；482a：Inside and outside lower edge portion；
482b：Inside and outside leading section；Di：Inwall internal oblique amount；Dio：Inwall external diameter tilt quantity；Dmin：Distance；Do：Outer wall internal oblique
Amount；R：Swing-around trajectory；S：Plane；T：Plane；TS：Tension force；TSd：Component；δ：Gap between stacking；θ：Angle of inclination；θMAX：Benchmark
Angle of inclination；θd：Avoid angle；θi：Introversion rake angle；θo：Flare rake angle；θt：Coiling face angle of inclination.
Claims (14)
1. a kind of electric rotating motivation, wherein,
The rotary electric machine has：Main shaft；Rotor, the rotor insert for the main shaft；And stator, the stator is with circle
Ring-type is located at the outer circumferential side of the rotor,
The stator has：Core, the core are laminated multiple electromagnetic steel plates and formed；Insulator, the insulator are set respectively
In one end in the axial direction of the core and the other end；And coil, the coil are the insulators by wire at one end
Formed between the insulator of the other end via the core coiling,
Each insulator has：Winding section, the winding section is diametrically by the wire coiling；And outside wall portions, it is described
Outside wall portions are located at the outside diameter of the winding section, in the state of before carrying out the coiling, the inner surface phase of the outside wall portions
The flare rake angle tiltedly set is rolled for footpath axially outward.
2. electric rotating motivation according to claim 1, wherein,
Compared with before the coiling, the core after the coiling is laminated thickness and reduced with being gone towards internal side diameter, phase
For the inclined angle of plane orthogonal to the axial direction,
The flare rake angle is more than the angle of inclination.
3. electric rotating motivation according to claim 2, wherein,
Angle of inclination on the basis of the angle of inclination, the benchmark angle of inclination are according to the stacking thickness of the core and stacking
The external diameter and internal diameter of number and the stator are come obtained from calculating.
4. electric rotating motivation according to claim 1, wherein,
The flare rake angle is less than according to the stacking thickness of the core and is laminated the external diameter of number and the stator and interior
Footpath come benchmark angle of inclination obtained from calculating,
The inner surface of the outside wall portions has positioned at the outer interior lower edge portion of the core side and positioned at the outer Inner Front End portion of front end,
The distance of the outer interior lower edge portion and the radial direction in the outer Inner Front End portion after the coiling is outer wall tilt quantity, is
Below the radius of the wire.
5. the electric rotating motivation described in any one in Claims 1 to 4, wherein,
The entirety of the outside wall portions has the flare rake angle.
6. the electric rotating motivation described in any one in Claims 1 to 5, wherein,
Multiple insulators also have an inner wall part, and the inner wall part is located at the internal side diameter of the winding section, the coiling it
Before in the state of, the outer surface of the inner wall part rolls the introversion rake angle tiltedly set relative to footpath axially outward.
7. electric rotating motivation according to claim 6, wherein,
The introversion rake angle is the stacking thickness and the external diameter and internal diameter of stacking number and the stator according to the core
Below benchmark angle of inclination obtained from calculating.
8. electric rotating motivation according to claim 7, wherein,
The inner surface of the inner wall part has positioned at the interior lower edge portion of the core side and positioned at the interior Inner Front End portion of front end,
The distance of the interior lower edge portion and the radial direction in the interior Inner Front End portion before the coiling is inwall internal oblique
Amount, it is more than the distance of the rotor and the interior lower edge portion.
9. electric rotating motivation according to claim 6, wherein,
The introversion rake angle is more than according to the stacking thickness of the core and is laminated the external diameter of number and the stator and interior
Footpath come benchmark angle of inclination obtained from calculating,
The outer surface of the inner wall part has positioned at the inside and outside lower edge portion of the core side and positioned at the inside and outside leading section of front end,
The distance of the inside and outside lower edge portion and the radial direction of inside and outside leading section after the coiling is inwall external diameter tilt quantity, is
Below the radius of the wire.
10. the electric rotating motivation described in any one in claim 6~9, wherein,
The entirety of the inner wall part has the introversion rake angle.
11. the electric rotating motivation described in any one in claim 1~10, wherein,
The axial coiling face of the winding section is in coiling face angle of inclination set in advance relative to plane orthogonal to the axial direction.
12. electric rotating motivation according to claim 11, wherein,
The coiling face angle of inclination be equal to according to the stacking thickness of the core and be laminated the external diameter of number and the stator with
And internal diameter is come benchmark angle of inclination obtained from calculating.
13. a kind of compressor, wherein,
The compressor has：Closed container, the closed container form shell；Compression mechanical part, the compression mechanical part are matched somebody with somebody
It is placed in the closed container, convection body is compressed；And electric rotating motivation, the electric rotating motivation are configured at described closed
In container, make the main shaft rotation driving, so as to drive the compression mechanical part,
As the electric rotating motivation, the electric rotating motivation described in any one in claim 1~12 is installed.
14. compressor according to claim 13, wherein,
The compressor is used by the HFO-1123 unitary system cryogens formed or the mix refrigerant comprising HFO-1123.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/062981 WO2016174768A1 (en) | 2015-04-30 | 2015-04-30 | Rotary motor and compressor |
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| Publication Number | Publication Date |
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| CN107534342A true CN107534342A (en) | 2018-01-02 |
| CN107534342B CN107534342B (en) | 2019-07-12 |
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| JP (1) | JP6362771B2 (en) |
| CN (1) | CN107534342B (en) |
| GB (1) | GB2553463B (en) |
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| CN111316539B (en) * | 2017-09-20 | 2022-03-22 | 松下知识产权经营株式会社 | Insulator, stator including the same, and motor including the same |
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- 2015-04-30 GB GB1716742.0A patent/GB2553463B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107534342B (en) | 2019-07-12 |
| GB201716742D0 (en) | 2017-11-29 |
| JPWO2016174768A1 (en) | 2017-11-30 |
| WO2016174768A1 (en) | 2016-11-03 |
| GB2553463B (en) | 2021-07-28 |
| GB2553463A (en) | 2018-03-07 |
| JP6362771B2 (en) | 2018-07-25 |
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