CN107171462A - Motor and the compressor with the motor - Google Patents
Motor and the compressor with the motor Download PDFInfo
- Publication number
- CN107171462A CN107171462A CN201710521707.0A CN201710521707A CN107171462A CN 107171462 A CN107171462 A CN 107171462A CN 201710521707 A CN201710521707 A CN 201710521707A CN 107171462 A CN107171462 A CN 107171462A
- Authority
- CN
- China
- Prior art keywords
- motor
- stator
- rotor
- core
- summit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses motor and the compressor with the motor.The motor includes：Stator, stator includes stator core and stator winding, and stator core has multiple circumferentially-spaced stator slots opened along stator core, and the overall diameter of wherein stator core is Φ 1 and interior diameter is Φ 2；And rotor, rotor includes rotor core and multiple permanent magnets, the overall diameter of rotor core is Φ 3, the number of magnetic poles of rotor is P, θ=360/P, the cross section of each permanent magnet has first summit and the second summit in the center of circle of the cross section away from rotor core, first summit is located in first straight line with the center of circle, second summit is located in second straight line with the center of circle, the angle of first straight line and second straight line is α, and wherein motor meets condition (a), (b) and at least one in (c)：(a) outer of the cross section of rotor core is complete circle；(b) α/θ=0.58 0.9；(c) (Φ 3 of Φ 2) 1 millimeter of/2=0.35 millimeters.The rotor has that cost of material is low, the low advantage of totle drilling cost.
Description
Technical field
The present invention relates to machine field, in particular it relates to which motor, further relates to the compressor with the motor.
Background technology
Existing rotary compressor is used as power source using permagnetic synchronous motor.The existing electricity using concentration volume structure
Machine does not only exist the defect of the close irrational distribution of magnetic, causes motor overall loss irrational distribution and iron loss is larger, and exists
The big defect of noise.
In order that the magnetic of motor it is close be reasonably distributed, noise it is low, the stator of motor uses multi-groove structure, to make the magnetic of motor
It is close be reasonably distributed, noise it is low.But, the stator with multi-groove structure has that manufacture efficiency is low, manufacture difficulty is big, manufacturing cost is high
Defect.Because the process costs of the stator with multi-groove structure rise, therefore the totle drilling cost of motor is caused to rise.
The content of the invention
The invention aims to overcome the problem of prior art is present there is provided motor and the compression with the motor
Machine, the motor has the advantages that cost of material is low.
First aspect present invention provides motor, and described motor includes according to a first aspect of the present invention：Stator, the stator
Including stator core and the stator winding being wrapped on the stator core, the stator core has multiple along the stator iron
The circumferentially-spaced stator slot opened of core, wherein the overall diameter of the stator core is Φ 1, the interior diameter of the stator core is Φ
2；And rotor, the relatively described stator of the rotor is rotatably arranged, and the rotor includes rotor core and multiple permanent magnets, institute
Rotor core is stated provided with multiple permanent magnet troughs, multiple permanent magnets are located in multiple permanent magnet troughs correspondingly,
The overall diameter of the rotor core is Φ 3, and the number of magnetic poles of the rotor is P, θ=360/P, the cross section of each permanent magnet
First summit and the second summit in the center of circle with the cross section away from the rotor core, first summit and the center of circle
In first straight line, second summit and the center of circle are located in second straight line, the first straight line and described second straight
The angle of line is α, wherein the motor meets condition (a), (b) and at least one in (c)：(a) horizontal stroke of the rotor core
The outer in section is complete circle；(b) α/θ=0.58-0.9；(c) (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters.
Outer by the cross section for making rotor core is complete circle, so as to reduce the air gap of motor.Pass through
Make (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters, so that the air gap of motor can also be reduced.Thus there is multiple-grooved knot with existing
The motor of the stator of structure is compared, and motor according to embodiments of the present invention need to only use less permanent magnet, so as to reduce electricity
The cost of material of machine, and then reduce the totle drilling cost of motor.
Moreover, by making α/θ=0.58-0.9, so as to reduce the pole embrace of motor.Thus have with existing
The motor of the stator of multi-groove structure is compared, and motor according to embodiments of the present invention need to only use less permanent magnet, so as to
The cost of material of motor is reduced, and then reduces the totle drilling cost of motor.
Motor according to embodiments of the present invention by meeting at least one in above-mentioned condition (a), (b) and (c) so that with
The motor of the existing stator with multi-groove structure is compared, and motor need to only use less permanent magnet, it is possible thereby to reduce motor
Cost of material, and then reduce motor totle drilling cost.
That is, the motor of the existing stator with multi-groove structure has the motor phase for concentrating volume structure with existing
Than, have the advantages that magnetic it is close be reasonably distributed, noise it is low, but have the shortcomings that process costs are high (and then cause totle drilling cost high).
Motor according to embodiments of the present invention is by meeting above-mentioned condition (a), (b) and at least one in (c), so as to keep magnetic close
It is reasonably distributed, in the case of the advantage that noise is low, reduces the cost of material of motor, thus reduces the totle drilling cost of motor.In other words,
The mode of motor according to embodiments of the present invention reduction cost of material, come the rising of the process costs of offsetting motor, so as to keep away
The totle drilling cost for exempting from motor rises, even declines the totle drilling cost of motor, to improve the competitiveness of motor and compressor.
Therefore, motor according to embodiments of the present invention have that cost of material is low, totle drilling cost is low, magnetic it is close be reasonably distributed, noise
Low advantage.
Preferably, α/θ=0.6-0.8.
Preferably, (Φ 2- Φ 3) -0.6 millimeter of/2=0.4 millimeters.
Preferably, the quantity of the stator slot is S, 36≤S≤102.
Preferably, 48≤S≤72.
Preferably, the Φ 1=0.55-0.7 of Φ 2/.
Preferably, the Φ 1=0.58-0.65 of Φ 2/.
Preferably, the width of the notch of each stator slot is H, 0≤H≤0.6 millimeter.
Preferably, two side walls of each stator slot are parallel to each other, and the stator winding is rectangle.
Second aspect of the present invention provides compressor, and described compressor includes according to a second aspect of the present invention：Housing；And electricity
Machine, the motor is the motor according to first aspect present invention, and the motor is located in the housing.
Compressor according to embodiments of the present invention is by setting motor described according to a first aspect of the present invention, so as to have
Cost of material is low, totle drilling cost is low, magnetic it is close be reasonably distributed, the advantage that noise is low.
Brief description of the drawings
Fig. 1 is the structural representation of the stator of motor according to embodiments of the present invention；
Fig. 2 is the structural representation of the rotor of motor according to embodiments of the present invention；
Fig. 3 is the sectional view of compressor according to embodiments of the present invention.
Description of reference numerals
Compressor 1,
Motor 10, housing 20, cylinder 30, base bearing 40, supplementary bearing 50, bent axle 60, piston 70,
Stator 110, stator core 111, stator winding 112, stator slot 113, notch 114, side wall 115, inner end wall 116,
Outer end wall 117,
Rotor 120, rotor core 121, permanent magnet 122, permanent magnet trough 123,
First summit M1, the second summit M2, first straight line L1, second straight line L2, center of circle O
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings rotor 120 according to embodiments of the present invention is described.As shown in Fig. 2 according to embodiments of the present invention
Rotor 120 include rotor core 121 and multiple permanent magnets 122.Rotor core 121 is provided with multiple permanent magnet troughs 123, multiple
Permanent magnet 122 is located in multiple permanent magnet troughs 123 correspondingly.
The number of magnetic poles of rotor 120 is P, θ=360/P.The cross section of each permanent magnet 122 has away from rotor core 121
Cross section center of circle O the first summit M1 and the second summit M2, the first summit M1 and center of circle O be located on first straight line L1, the
Two summit M2 and center of circle O is located on second straight line L2, and first straight line L1 and second straight line L2 angle is α.Wherein, motor 10 is expired
Sufficient condition (a), (b) and at least one in (c)：
(a) outer of the cross section of rotor core 121 is complete circle,
(b) α/θ=0.58-0.9.
The outer of the cross section of rotor core 121 is that complete circle refers to：On the outer of the cross section of rotor core 121
Any point the overall diameter Φ 3 of rotor core 121 is equal to center of circle O distance.That is, the horizontal stroke of rotor core 121
The outer in section is to be not provided with the structures such as projection, groove on circle, the outer of the cross section of rotor core 121.
Outer by the cross section for making rotor core 121 is complete circle, so as to reduce the air gap of motor 10.
Thus compared with the rotor of the motor of the existing stator with multi-groove structure, 120 need of rotor according to embodiments of the present invention
Using less permanent magnet, so as to reduce the cost of material of rotor 120, and then the totle drilling cost of motor 10 is reduced.
Moreover, by making α/θ=0.58-0.9, so as to reduce the pole embrace of motor 10.Thus with existing tool
The rotor for having the motor of the stator of multi-groove structure is compared, and rotor 120 according to embodiments of the present invention need to use less permanent magnetism
Body, so as to reduce the cost of material of rotor 120, and then reduces the totle drilling cost of motor 10.
Rotor 120 according to embodiments of the present invention by meeting at least one in above-mentioned condition (a) and (b) so that with
The rotor of the motor of the existing stator with multi-groove structure is compared, and rotor 120 need to use less permanent magnet, it is possible thereby to
The cost of material of rotor 120 is reduced, and then reduces the totle drilling cost of motor 10.
That is, the motor of the existing stator with multi-groove structure has the motor phase for concentrating volume structure with existing
Than, have the advantages that magnetic it is close be reasonably distributed, noise it is low, but have the shortcomings that process costs are high (and then cause totle drilling cost high).
Rotor 120 according to embodiments of the present invention is turned by meeting at least one in above-mentioned condition (a) and (b) so as to reduce
The cost of material of son 120, thus reduces the totle drilling cost of motor 10.In other words, rotor 120 according to embodiments of the present invention reduction
The mode of cost of material, come the rising of the process costs of offsetting motor 10, so as to avoid the totle drilling cost of motor 10 from rising, even make
The totle drilling cost of motor 10 declines, to improve the competitiveness of motor 10 and compressor 1.
Therefore, rotor 120 according to embodiments of the present invention has that cost of material is low, the low advantage of totle drilling cost.
Below with reference to the accompanying drawings motor 10 according to embodiments of the present invention is described.As shown in Figure 1-Figure 3, according to present invention implementation
The motor 10 of example includes stator 110 and rotor 120.
Stator 110 includes stator core 111 and the stator winding 112 being wrapped on stator core 111.Stator core 111
With multiple circumferentially-spaced stator slots 113 opened along stator core 111, the overall diameter of stator core 111 is Φ 1, stator iron
The interior diameter of core 111 is Φ 2.
The relative stator 110 of rotor 120 is rotatably arranged, and rotor 120 includes rotor core 121 and multiple permanent magnets 122.
Rotor core 121 is provided with multiple permanent magnet troughs 123, and multiple permanent magnets 122 are located at multiple permanent magnet troughs 123 correspondingly
It is interior.
The overall diameter of rotor core 121 is Φ 3, and the number of magnetic poles of rotor 120 is P, θ=360/P.Each permanent magnet 122
Cross section have away from rotor core 121 cross section center of circle O the first summit M1 and the second summit M2, the first summit M1 with
Center of circle O is located on first straight line L1, and the second summit M2 and center of circle O is located on second straight line L2, first straight line L1 and second straight line
L2 angle is α.Wherein, motor 10 meets condition (a), (b) and at least one in (c)：
(a) outer of the cross section of rotor core 121 is complete circle,
(b) α/θ=0.58-0.9,
(c) (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters.
Outer by the cross section for making rotor core 121 is complete circle, so as to reduce the air gap of motor 10.
By making (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters, so that the air gap of motor 10 can also be reduced.Thus have with existing
The motor of the stator of multi-groove structure is compared, and 10, motor according to embodiments of the present invention need to use less permanent magnet, so as to
To reduce the cost of material of motor 10, and then reduce the totle drilling cost of motor 10.
Moreover, by making α/θ=0.58-0.9, so as to reduce the pole embrace of motor 10.Thus with existing tool
The motor for having the stator of multi-groove structure is compared, and 10, motor according to embodiments of the present invention need to use less permanent magnet, so that
The cost of material of motor 10 can be reduced, and then reduces the totle drilling cost of motor 10.
Motor 10 according to embodiments of the present invention by meeting at least one in above-mentioned condition (a), (b) and (c) so that
Compared with the motor of the existing stator with multi-groove structure, 10, motor need to use less permanent magnet, it is possible thereby to reduce
The cost of material of motor 10, and then reduce the totle drilling cost of motor 10.
That is, the motor of the existing stator with multi-groove structure has the motor phase for concentrating volume structure with existing
Than, have the advantages that magnetic it is close be reasonably distributed, noise it is low, but have the shortcomings that process costs are high (and then cause totle drilling cost high).
Motor 10 according to embodiments of the present invention is by meeting above-mentioned condition (a), (b) and at least one in (c), so as to keep magnetic
It is close to be reasonably distributed, in the case of the advantage that noise is low, the cost of material of motor 10 is reduced, the totle drilling cost of motor 10 is thus reduced.
In other words, the mode of motor 10 according to embodiments of the present invention reduction cost of material, to offset the process costs of motor 10
Rise, so as to avoid the totle drilling cost of motor 10 from rising, even decline the totle drilling cost of motor 10, to improve motor 10 and compression
The competitiveness of machine 1.
Therefore, motor 10 according to embodiments of the present invention has that cost of material is low, totle drilling cost is low, magnetic is close is reasonably distributed, makes an uproar
The low advantage of sound.
As shown in Figure 1-Figure 3, in some embodiments of the invention, compressor 1 includes housing 20 and motor 10, motor 10
It is located in housing 20.Compressor 1 according to embodiments of the present invention is by setting motor 10, so that with cost of material is low, assembly
This low, magnetic is close to be reasonably distributed, the low advantage of noise.
Specifically, motor 10 can be permagnetic synchronous motor, and compressor 1 can be rotary compressor.
As shown in figure 3, compressor 1 can also include cylinder 30, base bearing 40, supplementary bearing 50, bent axle 60 and piston 70.Gas
Cylinder 30, base bearing 40, supplementary bearing 50, bent axle 60 and piston 70 can be known and sharp can be pacified in a known manner
Motor 10, sharp can also be arranged in housing 20 by dress in a known manner, because these are unrelated with present invention point, because
This is no longer described in detail.
Motor 10 includes stator 110 and rotor 120.Stator 110 includes stator core 111 and is wrapped in stator core 111
On stator winding 112.The relative stator 110 of rotor 120 is rotatably arranged, rotor 120 include rotor core 121 and it is multiple forever
Magnet 122.
Preferably, stator winding 112 can be made up of flat type copper wire, i.e., stator winding 112 can use flat type copper wire.Can profit
Stator winding 112 is wrapped on stator core 111 in a known manner, because stator winding 112 is wrapped in stator core 111
On mode it is unrelated with present invention point, therefore no longer describe in detail.Can sharp relative stator 110 in a known manner
Rotor 120 is rotatably arranged, because this is unrelated with present invention point, therefore is no longer described in detail.
The overall diameter of stator core 111 is Φ 1, and the interior diameter of stator core 111 is Φ 2, the Φ 1=0.55-0.7 of Φ 2/.
By making the Φ 1=0.55-0.7 of Φ 2/, compare so as to increase splitting for motor 10, and two neighboring stator slot 113 can be increased
Beeline B1, thus it can be prevented that the magnetic field of motor 10 is easily saturated, so as to improve the performance of motor 10.
Preferably, the Φ 1=0.58-0.65 of Φ 2/, it is possible thereby to which further splitting for increase motor 10 is compared, and can increase phase
The beeline B1 of adjacent two stator slots 113, so as to further prevent the magnetic field of motor 10 to be easily saturated, so as to enter
One step improves the performance of motor 10.
As shown in figure 1, multiple circumferentially-spaced stator slots opened along stator core 111 can be provided with stator core 111
113, i.e., multiple stator slots 113 can be located on stator core 111 along circumferentially-spaced turn up the soil of stator core 111, each stator
Groove 113 can radially extending along stator core 111.Preferably, multiple stator slots 113 can along stator core 111 circumference
Equally spacedly it is located on stator core 111.
Preferably, the quantity of stator slot 113 is S, 36≤S≤102.It is possible thereby in the reduction noise of motor 10, make motor
10 magnetic is close be reasonably distributed in the case of, do not make the process costs of motor 10 too high.It is further preferred that 48≤S≤72, thus may be used
In the case where efficiently controlling the process costs of motor 10, to reduce the noise of motor 10 as far as possible, make close point of the magnetic of motor 10
Cloth is more reasonable, even if motor 10 has higher cost performance.
As shown in figure 1, two side walls 115 of each stator slot 113 are parallel to each other, stator winding 112 can be rectangle.By
This can make the structure of stator 110 more reasonable.
Preferably, each stator slot 113 can be rectangular or square, i.e., the cross section of each stator slot 113 can be
Rectangular or square, the cross section of each stator slot 113 can be perpendicular to the axial direction of stator 110.
As shown in figure 1, each stator slot 113 can include two side walls 115 and inner end wall 116 and outer end wall 117, i.e.,
The top and bottom of stator slot 113 can be opened wide.Wherein, above-below direction is perpendicular to Fig. 1 paper direction.In Fig. 1, on this
Lower direction can be identical with the axial direction of stator 110, i.e., the above-below direction can parallel to stator 110 axial direction.
Notch 114 can be not provided with each stator slot 113, i.e., the edge of the cross section of each stator slot 113 is closing
's.In addition, can also be provided with notch 114 on each stator slot 113, i.e., the edge of the cross section of each stator slot 113 has at least
Can be unlimited at one.
The width of the notch 114 of each stator slot 113 is H, it is preferable that 0≤H≤0.6 millimeter.Wherein, H=0 refers to often
Notch 114 is not provided with individual stator slot 113.As H=0, the noise of motor 10 is relatively low, but the performance of motor 10 is slightly worse.Work as H
When being not equal to 0, better performances of motor 10, but the noise of motor 10 is slightly larger, and H is bigger, the performance of motor 10 it is better and
Noise is bigger.By making H be less than or equal to 0.6, so as to which in the case of the noise of controlled motor 10, motor is improved as far as possible
10 performance.
As shown in figure 1, notch 114 can be located in the inner end wall 116 of stator slot 113.
The overall diameter of rotor core 121 is Φ 3, and the number of magnetic poles of rotor 120 is P, θ=360/P.Rotor core 121 has
Multiple permanent magnet troughs 123, multiple permanent magnets 122 are located in multiple permanent magnet troughs 123 correspondingly.That is, permanent magnet
122 quantity can be equal to the quantity of permanent magnet trough 123, and a permanent magnet 122 can be located in a permanent magnet trough 123.
Preferably, multiple permanent magnet troughs 123 can equally spacedly be located at rotor core 121 along the circumference of rotor core 121
On.Correspondingly, multiple permanent magnets 122 can be equally spacedly located on rotor core 121 along the circumference of rotor core 121.
The cross section of each permanent magnet 122 and the cross section of rotor core 121 can be located in approximately the same plane, Mei Geyong
The cross section of magnet 122 and the cross section of rotor core 121 can be perpendicular to the axial directions of rotor 120.
The cross section of each permanent magnet 122 have the center of circle O of the cross section away from rotor core 121 the first summit M1 and
Second summit M2, i.e. the first summit M1 and the second summit M2 are compared to other summits of the cross section of permanent magnet 122, adjacent rotor iron
The outer of the cross section of core 121.First summit M1 and center of circle O are located on first straight line L1, and the second summit M2 and center of circle O is located at the
On two straight line L2, first straight line L1 and second straight line L2 angle is α.
That is, center of circle O is the first circular center of circle, the first summit M1 and the second summit M2 are in first circle
Two points, α is the central angle corresponding to the first circular minor arc being located between the first summit M1 and the second summit M2.
Wherein, motor 10 meets condition (a), (b) and at least one in (c)：
The outer of the cross section of condition (a) rotor core 121 is complete circle,
Condition (b) α/θ=0.58-0.9,
Condition (c) (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters.
Thus compared with the motor of the existing stator with multi-groove structure, 10 need of motor according to embodiments of the present invention
Using less permanent magnet, so as to reduce the cost of material of motor 10, and then the totle drilling cost of motor 10 is reduced.
Preferably, (Φ 2- Φ 3) -0.6 millimeter of/2=0.4 millimeters.It is possible thereby to make the size of the air gap of motor 10 more
Rationally, so as to further reduce the permanent magnet used needed for motor 10, so as to the raw material of further reduction motor 10
Cost, and then further reduce the totle drilling cost of motor 10.
It is further preferred that (Φ 2- Φ 3) -0.55 millimeter of/2=0.45 millimeters.It is possible thereby to make the big of the air gap of motor 10
It is small more rationally to reduce the permanent magnet used needed for motor 10 so as to further, so as to further reduction motor 10
Cost of material, and then further reduce motor 10 totle drilling cost.
Most preferably ,/2=0.52 millimeters of (Φ 2- Φ 3).It is possible thereby to make the size of the air gap of motor 10 more reasonable,
So as to further reduce the permanent magnet used needed for motor 10, so as to the cost of material of further reduction motor 10,
And then further reduce the totle drilling cost of motor 10.
Preferably, α/θ=0.6-0.8.It is possible thereby to make the pole embrace of motor 10 more reasonable, so as to further
The permanent magnet used needed for motor 10 is reduced, so as to the cost of material of further reduction motor 10, and then is further reduced
The totle drilling cost of motor 10.
It is further preferred that α/θ=0.65-0.75.It is possible thereby to make the pole embrace of motor 10 more reasonable, so as to
The permanent magnet used needed for motor 10 is further reduced, so as to the cost of material of further reduction motor 10, and then enters one
The totle drilling cost of step reduction motor 10.
Most preferably, α/θ=0.68.It is possible thereby to make the pole embrace of motor 10 more reasonable, so as to further
The permanent magnet used needed for motor 10 is reduced, so as to the cost of material of further reduction motor 10, and then is further reduced
The totle drilling cost of motor 10.
As shown in figure 1, in some examples of the present invention, heat emission hole 118, heat emission hole can be provided with stator core 111
118 are located between two neighboring stator slot 113 in the circumference of stator core 111, and heat emission hole 118 is in the footpath of stator core 111
It is located at the outside of stator slot 113 upwards.Wherein, the beeline of two neighboring stator slot 113 is B1, heat emission hole 118 and stator
The beeline of groove 113 is B2, B2 >=B1/2.
By setting the heat emission hole 118 being located between two neighboring stator slot 113 on stator core 111, so as to
Make stator core 111 that there is larger flow area.It is possible thereby to the stator winding preferably to being wrapped on stator core 111
112 are radiated, so that the reliability of motor 10 and compressor 1 can be not only improved, and can be with lifting motor 10 and compression
The performance of machine 1.
Moreover, by making B2 >=B1/2, so as to ensure that the magnetic field of motor 10 is unaffected, to ensure motor 10
Magnetic circuit is normally run.
Therefore, stator core 111 according to embodiments of the present invention has the advantages that flow area is big, thermal diffusivity is good, so that
The reliability of motor 10 and compressor 1 can be not only improved, and can be with the performance of lifting motor 10 and compressor 1.
Correspondingly, the stator 110 provided with stator 110, motor 10 and compressor 1 are with flow area is big, thermal diffusivity is good, can
The advantages of by property height, superior performance.
Because each stator slot 113 can radially extending along stator core 111, therefore two neighboring stator slot 113
Beeline B1 for two neighboring stator slot 113 the inner (end at the center of the adjacent stator iron core 111 of stator slot 113) it
Between distance.Specifically, the beeline B1 of two neighboring stator slot 113 is the side wall 115 of two neighboring stator slot 113
The distance between the inner.
The beeline B2 of heat emission hole 118 and stator slot 113 determines for the edge of heat emission hole 118 with the remote of stator slot 113
Beeline between the summit at the center of sub- iron core 111.With reference to Fig. 1, with stator slot 113 for rectangular channel or square groove
Exemplified by, beeline B2 is described further.Stator slot 113 has four summits, and two summits of stator slot 113 are (outer
Summit) center away from stator core 111, one in two outer dead centres of the edge of heat emission hole 118, heat emission hole 118
Edge and two outer dead centres in this distance between one be beeline B2.
Heat emission hole 118 can be circular hole, elliptical aperture, polygonal hole etc., the i.e. cross section of heat emission hole 118 can be it is circular,
Ellipse, polygon etc..
In one embodiment of the invention, the quantity of stator slot 113 is S, and the quantity of heat emission hole 118 is N, wherein 0 ＜ N
≤S.That is, the quantity of heat emission hole 118 is not more than the quantity of stator slot 113.It is possible thereby to ensure stator core 111
In the case of radiating effect, be not provided with excessive heat emission hole 118, so as to efficiently control the technique of stator core 111 into
This.
Preferably, can be provided with a heat emission hole 118 between two neighboring stator slot 113.In other words, heat emission hole 118
Quantity can be equal to the quantity of stator slot 113, and in the circumference of stator core 111, stator slot 113 and heat emission hole 118 can be handed over
For setting.It is possible thereby in the case where efficiently controlling the process costs of stator core 111, further improve stator core
111 radiating effect.
As shown in figure 1, in the specific example of the present invention, two neighboring stator slot 113 can be relative to first pair
Claim line symmetrical, the center of heat emission hole 118 can be located on first line of symmetry.
Specifically, on the cross section of stator core 111, the cross section of two neighboring stator slot 113 can be relative to
First line of symmetry is symmetrical, and the center of the cross section of heat emission hole 118 can be located on first line of symmetry.Thus heat emission hole 118
The radiating effect of stator winding 112 in two stator slots 113 adjacent thereto is substantially the same, so as to further raising
The radiating effect of stator core 111.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected to by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of motor, it is characterised in that including：
Stator, the stator includes stator core and the stator winding being wrapped on the stator core, the stator core tool
There are multiple circumferentially-spaced stator slots opened along the stator core, wherein the overall diameter of the stator core is Φ 1, it is described fixed
The interior diameter of sub- iron core is Φ 2；With
Rotor, the relatively described stator of the rotor is rotatably arranged, and the rotor includes rotor core and multiple permanent magnets, institute
Rotor core is stated provided with multiple permanent magnet troughs, multiple permanent magnets are located in multiple permanent magnet troughs correspondingly,
The overall diameter of the rotor core is Φ 3, and the number of magnetic poles of the rotor is P, θ=360/P, the cross section of each permanent magnet
First summit and the second summit in the center of circle with the cross section away from the rotor core, first summit and the center of circle
In first straight line, second summit and the center of circle are located in second straight line, the first straight line and described second straight
The angle of line is α, wherein the motor meets condition (a), (b) and at least one in (c)：
(a) outer of the cross section of the rotor core is complete circle,
(b) α/θ=0.58-0.9,
(c) (Φ 2- Φ 3) -1 millimeter of/2=0.35 millimeters.
2. motor according to claim 1, it is characterised in that α/θ=0.6-0.8.
3. motor according to claim 1, it is characterised in that (Φ 2- Φ 3) -0.6 millimeter of/2=0.4 millimeters.
4. motor according to claim 1, it is characterised in that the quantity of the stator slot is S, 36≤S≤102.
5. motor according to claim 4, it is characterised in that 48≤S≤72.
6. motor according to claim 1, it is characterised in that the Φ 1=0.55-0.7 of Φ 2/.
7. motor according to claim 6, it is characterised in that the Φ 1=0.58-0.65 of Φ 2/.
8. motor according to claim 1, it is characterised in that the width of the notch of each stator slot is H, 0≤H≤
0.6 millimeter.
9. motor according to claim 1, it is characterised in that two side walls of each stator slot are parallel to each other, institute
Stator winding is stated for rectangle.
10. a kind of compressor, it is characterised in that including：
Housing；With
Motor, the motor is the motor according to any one of claim 1-9, and the motor is located in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521707.0A CN107171462A (en) | 2017-06-30 | 2017-06-30 | Motor and the compressor with the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521707.0A CN107171462A (en) | 2017-06-30 | 2017-06-30 | Motor and the compressor with the motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171462A true CN107171462A (en) | 2017-09-15 |
Family
ID=59827268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710521707.0A Pending CN107171462A (en) | 2017-06-30 | 2017-06-30 | Motor and the compressor with the motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171462A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482811A (en) * | 2017-09-30 | 2017-12-15 | 广东威灵电机制造有限公司 | For built-in motor rotor core and there is its built-in motor |
| CN110620455A (en) * | 2018-06-20 | 2019-12-27 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497803U (en) * | 1977-12-22 | 1979-07-10 | ||
| CN103986261A (en) * | 2014-04-10 | 2014-08-13 | 西北工业大学 | Method for improving gap flux density waveform of permanent magnet synchronous motor |
| CN106487122A (en) * | 2016-11-24 | 2017-03-08 | 广东美芝精密制造有限公司 | Stator, motor and compressor |
| CN106816977A (en) * | 2017-03-31 | 2017-06-09 | 广东美芝制冷设备有限公司 | Compressor and its magneto |
| CN206834859U (en) * | 2017-06-30 | 2018-01-02 | 广东美芝制冷设备有限公司 | Motor and the compressor with the motor |
-
2017
- 2017-06-30 CN CN201710521707.0A patent/CN107171462A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497803U (en) * | 1977-12-22 | 1979-07-10 | ||
| CN103986261A (en) * | 2014-04-10 | 2014-08-13 | 西北工业大学 | Method for improving gap flux density waveform of permanent magnet synchronous motor |
| CN106487122A (en) * | 2016-11-24 | 2017-03-08 | 广东美芝精密制造有限公司 | Stator, motor and compressor |
| CN106816977A (en) * | 2017-03-31 | 2017-06-09 | 广东美芝制冷设备有限公司 | Compressor and its magneto |
| CN206834859U (en) * | 2017-06-30 | 2018-01-02 | 广东美芝制冷设备有限公司 | Motor and the compressor with the motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482811A (en) * | 2017-09-30 | 2017-12-15 | 广东威灵电机制造有限公司 | For built-in motor rotor core and there is its built-in motor |
| CN107482811B (en) * | 2017-09-30 | 2023-08-22 | 广东威灵电机制造有限公司 | Rotor core for built-in motor and built-in motor having the same |
| CN110620455A (en) * | 2018-06-20 | 2019-12-27 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor |
| CN110620455B (en) * | 2018-06-20 | 2021-07-06 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107147224A (en) | Stator core and stator, motor and compressor with the stator core | |
| US20160056672A1 (en) | Permanent magnet motor | |
| EP3159903A1 (en) | Resonant high current density transformer | |
| CN107171462A (en) | Motor and the compressor with the motor | |
| US11777346B2 (en) | Rotor assembly and motor | |
| CN205647046U (en) | Permanent magnet of motor and motor, compressor that has it | |
| US9564778B2 (en) | Stator core | |
| BR102012016288A2 (en) | LAMINAR SEGMENT FOR ELECTRIC MOTOR SEGMENTED STATOR | |
| CN105846630A (en) | Permanent magnet motor and compressor with permanent magnet motor | |
| CN207134882U (en) | Stator module, motor and compressor | |
| CN205864083U (en) | The permanent magnet of motor and there is its motor, compressor | |
| CN207559701U (en) | Stator core and stator, motor and compressor with the stator core | |
| CN206834859U (en) | Motor and the compressor with the motor | |
| WO2018090415A1 (en) | Rotor and permanent magnet synchronous motor having same, refrigerator compressor, and dish washer | |
| KR101525222B1 (en) | Interior Permanent Magnet Synchronous Machine | |
| EP3358713A1 (en) | Motor | |
| CN109792174A (en) | Motor and conditioner | |
| US11114908B2 (en) | Rotor for electric motor, electric motor and compressor | |
| CN105743233A (en) | Permanent magnet of motor, and motor and compressor equipped with same | |
| CN106849425A (en) | Rotor core, motor, compressor and dish-washing machine for motor | |
| CN108711968A (en) | Rotor assembly and motor | |
| US10658890B2 (en) | Rotor for rotating electric machines | |
| CN204442126U (en) | Stator module and the compressor with it | |
| CN206364609U (en) | stator punching and stator and compressor | |
| CN204145099U (en) | Stator punching and the compressor electric motor with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |