CN205566051U - Electric motor - Google Patents
Electric motor Download PDFInfo
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- CN205566051U CN205566051U CN201521135418.XU CN201521135418U CN205566051U CN 205566051 U CN205566051 U CN 205566051U CN 201521135418 U CN201521135418 U CN 201521135418U CN 205566051 U CN205566051 U CN 205566051U
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- Prior art keywords
- air gap
- gap groove
- rotor
- motor
- groove
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- 239000012762 magnetic filler Substances 0.000 claims description 34
- 230000004907 flux Effects 0.000 claims description 7
- 210000003361 heart septum Anatomy 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 30
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 9
- 229910001172 neodymium magnet Inorganic materials 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
Abstract
The utility model discloses an electric motor, including the stator with hold the rotor in the stator. The tip in an at least air gap groove of rotor is for skew predetermined distance of the main part rather than the next -door neighbour and/or predetermined angle. The utility model discloses in, the tip through the air gap groove on the rotor with electric motor is for skew predetermined distance of the main part rather than the next -door neighbour and/or predetermined angle to reduce electric motor's torque ripple effectively, and can not increase the complexity of electric motor's stator or rotor.
Description
Technical field
The utility model relates to a kind of motor, particularly relates to a kind of permanent magnetism assist in synchronization magnetic resistance electricity
Motivation.
Background technology
In the prior art, in order to reduce adjustable frequency motor cost, generally use variable frequency induction electricity
Motivation or reluctance motor replace rare-earth permanent magnet motor.For variable frequency induction motor, its
Although the cost of adjustable frequency motor can be reduced, but motor efficiency can be reduced.For magnetic resistance
Motor, although it can reduce the cost of adjustable frequency motor, but needs bigger electric current,
Add the cost of frequency converter, thus add the cost that motor is overall with frequency converter.
Additionally, in the prior art, for reluctance motor, as depicted in figs. 1 and 2, exist
A plurality of air gap groove 21 it is formed with on its rotor 20.Every air gap groove 21 have end 21a and
Main part 21b with this end 21a next-door neighbour.In the prior art shown in Fig. 1 and Fig. 2,
The end 21a of air gap groove 21 is mutually aligned with corresponding main part 21b, and this can largely
The optimization design of upper restrictions motor, makes the torque ripple of motor to reduce further.
In the prior art, in order to reduce the torque ripple of motor, generally use uneven gas
Gap.Although using non-uniform gap can reduce the torque ripple of motor, but use uneven
Even air gap adds the complexity of stator or rotor, and is difficult to measure motor air gap.
Utility model content
The purpose of this utility model aims to solve the problem that the above-mentioned problems in the prior art and defect
At least one aspect.
A purpose of the present utility model is to provide a kind of motor, and it can be effectively reduced
The torque ripple of motor, and the stator of motor or the complexity of rotor will not be increased.
Another purpose of the present utility model is to provide a kind of motor, and it can drop effectively
The cost of low adjustable frequency motor, and ensure that motor has higher efficiency.
According to an aspect of the present utility model, it is provided that a kind of motor, including stator and receiving
Rotor in the stator.Wherein, the end of at least one air gap groove of rotor is relative to tight with it
Adjacent main part skew preset distance and/or predetermined angular.
According to the embodiment of an exemplary of the present utility model, rotor includes around the most in the heart
Every many groups air gap groove of distribution, and often group air gap groove includes being spaced cloth along the radial direction of rotor
The a plurality of air gap groove put.
According to the embodiment of another exemplary of the present utility model, often in group air gap groove at least
Article one, at least one end of air gap groove is predetermined relative to the main part skew of corresponding air gap groove
Distance and/or predetermined angular.
According to the embodiment of another exemplary of the present utility model, often in group air gap groove except
The end of other air gap groove outside one air gap groove of the outermost radial outside being positioned at rotor is relative
Main part skew preset distance and/or predetermined angular in corresponding air gap groove.
According to the embodiment of another exemplary of the present utility model, often in group air gap groove at least
Article one, at least one end of air gap groove relative to the main part of corresponding air gap groove towards or remote
From one group of adjacent air gap groove skew preset distance and/or predetermined angular.
According to the embodiment of another exemplary of the present utility model, air gap groove is generally U-shaped,
V-type or circular arc type；Or, often in group air gap groove, each bar air gap groove has identical or different shape
Shape；Or, rotor includes four groups, six groups or eight groups of air gap grooves；Or, often group air gap groove bag
Include the radial direction spaced apart two or three air gap groove along rotor.
According to the embodiment of another exemplary of the present utility model, the often difference in group air gap groove
Offset distance or the angle of the end of air gap groove are equal or unequal；Or, often in group air gap groove
The offset direction of end of different air gap groove identical or differ；Or, same air gap groove
The offset distance of two ends or angle equal or unequal；Or, same air gap groove
The offset direction of two ends is identical or differs；Or, two adjacent groups air gap groove is symmetrical
Or it is asymmetric；Or, the corresponding end of two the corresponding air gap grooves in two adjacent groups air gap groove
Offset distance or the angle in portion are equal or unequal；Or, the correspondence in two adjacent groups air gap groove
The offset direction of corresponding end of two air gap grooves identical or differ.
According to the embodiment of another exemplary of the present utility model, the end of air gap groove and and its
The main part of next-door neighbour is interconnected or is spaced from each other preset space length, and preset space length is more than or equal to
0.5mm and less than or equal to 0.8mm.
According to the embodiment of another exemplary of the present utility model, being close to end of air gap groove
Main part extend along camber line, and end is relative to the curved edge line of corresponding main part
Tangent offset preset distance and/or predetermined angular.
According to the embodiment of another exemplary of the present utility model, in two adjacent groups air gap groove
Distance W between the summit, end of the air gap groove of inner side and the radius R of rotor and air gap
The ratio of groove group number 2p meets following relation: 0.065≤W/ (2 π R/2p)≤0.09.
According to the embodiment of another exemplary of the present utility model, the flux path two ends end of rotor
Maximum electrical angle θ of center, portion angle meets following relation: 124 °≤θ≤140 °.
According to the embodiment of another exemplary of the present utility model, being close to end of air gap groove
Main part extend along camber line, and end is relative to the curved edge line of corresponding main part
Tangent offset preset distance and/or predetermined angular.
According to the embodiment of another exemplary of the present utility model, at least one gas of rotor
Slot is put into magnetic fillers.
According to the embodiment of another exemplary of the present utility model, fill out in same air gap groove
It is filled with one or more magnetic fillers.
According to the embodiment of another exemplary of the present utility model, magnetic fillers is dilute for comprising
The ferrite magnetite of earth elements and/or sintered Nd-Fe-B permanent magnet magnetite.
According to the embodiment of another exemplary of the present utility model, motor is frequency-changeable compressor
Use motor.
Gas in the embodiment of the utility model each exemplary aforementioned, on the rotor of motor
The end of slot offsets preset distance and/or predetermined angular relative to its immediate main part,
Thus change the relative position between air gap groove and the stator slot on stator on rotor, and change
Become the magnetic line of force distribution in magnetic field such that it is able to reach to be effectively reduced the torque ripple of motor
Effect, and the stator of motor or the complexity of rotor will not be increased.
In the embodiment of exemplary more of the present utility model, at the air gap of the rotor of motor
Groove is put into magnetic fillers, thus is effectively improved the efficiency of motor.
By below with reference to accompanying drawing to the utility model description, of the present utility model its
Its purpose and advantage will be apparent to, and can help to be fully understood by the utility model.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the rotor of a kind of reluctance motor of the prior art, Qi Zhongwei
Magnetic fillers is filled in the air gap groove of rotor；
Fig. 2 shows the schematic diagram of the rotor of a kind of reluctance motor of the prior art, Qi Zhongyi
Through being filled with magnetic fillers in the air gap groove of rotor；
Fig. 3 shows the rotor of the reluctance motor according to first embodiment of the present utility model
Schematic diagram, does not fills magnetic fillers in the air gap groove of rotor；
Fig. 4 shows the rotor of the reluctance motor according to first embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Fig. 5 shows the schematic diagram of the reluctance motor according to first embodiment of the present utility model；
Fig. 6 shows the rotor of the reluctance motor according to the second embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Fig. 7 shows the rotor shown in Fig. 6, wherein indicates the mid portion of the air gap groove of rotor
Breadth Maximum with two side portions；
Fig. 8 shows the rotor of the reluctance motor according to the 3rd embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Fig. 9 shows the rotor of the reluctance motor according to the 4th embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 10 shows the rotor of the reluctance motor according to the 5th embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 11 shows the rotor of the reluctance motor according to sixth embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 12 shows the rotor shown in Figure 11, wherein indicates the two adjacent groups air gap groove of rotor
In the air gap groove of inner side summit, end between distance and the radius of rotor；
Figure 13 shows the rotor shown in Figure 11, wherein indicates the end, flux path two ends of rotor
The maximum electrical angle of center angle and flux path two ends end center point；
Figure 14 shows the summit, end of the air gap groove of inner side in rotor two adjacent groups air gap groove
Between distance and the radius of rotor and air gap groove group number and motor torque fluctuation between pass
System；
Figure 15 shows the rotor of the reluctance motor according to the 7th embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 16 shows the rotor of the reluctance motor according to the 8th embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 17 shows the rotor of the reluctance motor according to the 9th embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 18 shows the rotor of the reluctance motor according to the tenth embodiment of the present utility model
Schematic diagram, is the most filled with magnetic fillers in the air gap groove of rotor；
Figure 19 shows the rotor of the reluctance motor according to the 11st embodiment of the present utility model
Schematic diagram, the most in the air gap groove of rotor, be filled with magnetic fillers；With
Figure 20 shows the rotor of the reluctance motor according to the 12nd embodiment of the present utility model
Schematic diagram, the most in the air gap groove of rotor, be filled with magnetic fillers.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is made into one
Step specific description.In the description, the instruction of same or analogous drawing reference numeral is same or similar
Parts.Following referring to the drawings explanation to the utility model embodiment is intended to this practicality newly
The overall utility model design of type explains, and is not construed as of the present utility model one
Plant and limit.
It addition, in the following detailed description, for ease of explaining, elaborate many concrete thin
Save to provide the comprehensive understanding to present disclosure embodiment.It should be apparent, however, that one or more enforcements
Example can also be carried out in the case of not having these details.In other cases, known
Construction and device diagrammatically embody to simplify accompanying drawing.
First embodiment
Fig. 3 shows the rotor 120 of the reluctance motor according to first embodiment of the present utility model
Schematic diagram, the most in the air gap groove 121 of rotor 120 fill magnetic fillers 122；
Fig. 4 shows showing of the rotor 120 of the reluctance motor according to first embodiment of the present utility model
It is intended to, in the air gap groove 121 of rotor 120, has the most been filled with magnetic fillers 122；
Fig. 5 shows the schematic diagram of the reluctance motor according to first embodiment of the present utility model.
In the embodiment of an exemplary of the present utility model, disclose a kind of reluctance electric
Machine.As it is shown in figure 5, this motor mainly includes stator 110, rotor 120 and coil 130.
Rotor 120 is contained in the receiving chamber of stator 110, and coil 130 is contained in the appearance of stator 110
Receive in the coil groove on the sidewall in chamber.
As Fig. 3 clearly illustrates, in the illustrated embodiment, at least one gas of rotor 120
The end 121a of slot 121 offsets predetermined distance d relative to its immediate main part 121b.
In the embodiment shown in Fig. 3 and Fig. 4, rotor 120 includes dividing around wherein heart septum
Four groups of air gap grooves of cloth, and often group air gap groove includes that the radial direction along rotor is spaced apart
Article three, air gap groove.However, it is noted that the utility model is not limited to the embodiment of diagram, turn
Son can also include four groups, six groups, eight groups or more groups of air gap grooves, and often organizes air gap groove also
Two, four or more a plurality of air gap groove can be included.
In the embodiment shown in Fig. 3 and Fig. 4, often group air gap groove in except outermost gas
The end 121a of other air gap groove 121 outside slot is relative to its immediate main part
121b offsets predetermined distance d.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, the outermost in air gap groove is often organized
Air gap groove entirety V-shaped, often group air gap groove in addition to outermost air gap groove
Other air gap groove 121 is overall U-shaped.In the illustrated embodiment, often organize in air gap groove
Outermost air gap groove does not connects in centre, is separated by rotor material, as such, it is possible to anti-spline
Son is by excessive hollow out, to ensure that rotor has enough mechanical strengths.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, the different gas in air gap groove are often organized
The offset distance d of the end 121a of slot 121 is equal, and often organizes the difference in air gap groove
The offset direction of the end of air gap groove is identical, such as both facing to one group of adjacent air gap groove skew.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, two adjacent groups air gap groove is the most right
Claim.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, right in two adjacent groups air gap groove
The offset distance of the end of two the air gap grooves 121 answered is equal.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, right in two adjacent groups air gap groove
The offset direction of the corresponding end 121a of two the air gap grooves 121 answered is identical.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, the end 121a of air gap groove 121
It is interconnected with its immediate main part 121b.
As shown in Figure 3 and Figure 4, in the illustrated embodiment, air gap groove 121 and end
The main part 121b of 121a next-door neighbour linearly extends.
As shown in Fig. 3, Fig. 4 and Fig. 5, at least one air gap groove 121 of rotor 120
Put into magnetic fillers 122.In the illustrated embodiment, only at the often group air gap of rotor 220
Two air gap grooves 121 of the inner side in groove put into magnetic fillers 122.
As shown in Fig. 3, Fig. 4 and Fig. 5, be filled with in same air gap groove 121 one piece or
Polylith magnetic fillers 122.In an embodiment of the present utility model, magnetic fillers can
Think the ferrite magnetite and/or sintered Nd-Fe-B permanent magnet magnetite comprising rare earth element.If
Use sintered Nd-Fe-B permanent magnet magnetite, can use without Dy (dysprosium) or Dy poor
Sintered Nd-Fe-B permanent magnet magnetite, it is for instance possible to use the sintered NdFeB of Dy content≤3%
Permanent magnet magnetite.
In an embodiment of the present utility model, the motor shown in Fig. 3 to Fig. 5 can be
Frequency-changeable compressor motor.
Second embodiment
Fig. 6 shows the rotor 220 of the reluctance motor according to the second embodiment of the present utility model
Schematic diagram, the most in the air gap groove 221 of rotor 220, be filled with magnetic fillers
222；Fig. 7 shows the rotor 220 shown in Fig. 6, wherein indicates the air gap groove of rotor 220
The mid portion of 221 and the Breadth Maximum of two side portions.
As Fig. 6 clearly illustrates, in the illustrated embodiment, at least one gas of rotor 220
The end 221a of slot 221 offsets predetermined distance d relative to its immediate main part 221b
And predetermined angle.
In the embodiment shown in Fig. 6 and Fig. 7, rotor 220 includes dividing around wherein heart septum
Four groups of air gap grooves of cloth, and often group air gap groove includes that the radial direction along rotor is spaced apart
Article three, air gap groove.
In the embodiment shown in Fig. 6 and Fig. 7, the often air gap groove of the centre in group air gap groove
The end 221a of 221 offsets predetermined distance d with pre-relative to its immediate main part 221b
Determine angle [alpha].In the embodiment shown in Fig. 6 and Fig. 7, often inner side in group air gap groove
The end of air gap groove only offsets predetermined angle and the most cheap relative to its immediate main part
Predetermined distance d, often the end of the outermost air gap groove in group air gap groove does not offsets.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, the outermost in air gap groove is often organized
Air gap groove overall in circular arc, often in group air gap groove in addition to outermost air gap groove
Other air gap groove 221 is overall U-shaped.
In the illustrated embodiment, as shown in Figure 6 and Figure 7, outermost and the air gap of inner side
Groove does not connects in centre, is separated by rotor material, as such, it is possible to prevent rotor by excessive hollow out,
To ensure that rotor has enough mechanical strengths.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, the different gas in air gap groove are often organized
The offset distance d and deviation angle α of the end 221a of slot 221 are equal, and often organize gas
The offset direction of the end of the different air gap groove in slot is identical, such as both facing to adjacent one group
Air gap groove offsets.And minimum range Q1 and different air gap between different air gap groove end after skew
Ratio Q1/Q2 >=0.95 of spacing Q2 of groove body, to ensure not affect q after implementing skew
The degree of saturation of axle magnetic circuit.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, two adjacent groups air gap groove can phase
The most symmetrical.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, right in two adjacent groups air gap groove
The offset distance d and deviation angle α of the end of two the air gap grooves 221 answered can be equal.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, right in two adjacent groups air gap groove
The offset direction of the corresponding end 221a of two the air gap grooves 221 answered is identical.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, the end 221a of air gap groove 221
It is interconnected with its immediate main part 221b.
As shown in Figure 6 and Figure 7, in the illustrated embodiment, air gap groove 221 and end
The main part 221b of 221a next-door neighbour linearly extends.
As shown in Figure 6 and Figure 7, at least one air gap groove 221 of rotor 220, magnetic is put into
Property filler 222.In the illustrated embodiment, only in the often group air gap groove of rotor 220
A middle air gap groove 221 puts into magnetic fillers 222.
As shown in Figure 6 and Figure 7, in same air gap groove 221, it is filled with one or more magnetic
Property filler 222, the such as two side portions at similar U-shaped air gap groove respectively place one piece of magnetic
Filler 222.In an embodiment of the present utility model, magnetic fillers 222 can be
Comprise ferrite magnetite and/or the sintered Nd-Fe-B permanent magnet magnetite of rare earth element.Fig. 6 to Fig. 7
Shown motor can be frequency-changeable compressor motor.
As Fig. 7 clearly illustrates, in the illustrated embodiment, the often group air gap groove of rotor 220
In the Breadth Maximum of mid portion of one the air gap groove 221 in centre be h1, two side portions
Breadth Maximum is h2.In the embodiment of an exemplary of the present utility model, middle one
Air gap groove 221 meets following relation: 1.5≤h1/h2≤2.5.In the illustrated embodiment, magnetic
The both sides of one the air gap groove 221 in centre that property filler 222 is only filled with in often organizing air gap groove
In Fen.
3rd embodiment
Fig. 8 shows the rotor 320 of the reluctance motor according to the 3rd embodiment of the present utility model
Schematic diagram, the most in the air gap groove 321 of rotor 320, be filled with magnetic fillers.
The 3rd embodiment shown in Fig. 8 and the main region of the second embodiment shown in Fig. 6 and Fig. 7
It is not that the structure of air gap groove is different.
In the 3rd embodiment shown in Fig. 8, an often air gap of the inner side in group air gap groove
The main part 321b with end 321a next-door neighbour of groove 321 extends along camber line, and end 321a
The tangent offset predetermined angle of the curved edge line relative to corresponding main part 321b.Remove
Outside this, the 3rd embodiment shown in Fig. 8 is basic with the second embodiment shown in Fig. 6 and Fig. 7
Identical.
4th embodiment
Fig. 9 shows the rotor 420 of the reluctance motor according to the 4th embodiment of the present utility model
Schematic diagram, the most in the air gap groove 421 of rotor 420, be filled with magnetic fillers
422。
The 4th embodiment shown in Fig. 9 and the main region of the first embodiment shown in Fig. 3 and Fig. 4
It is not that the quantity often organizing air gap groove is different.
In the 4th embodiment shown in Fig. 9, often group air gap groove only includes two air gap grooves 421,
And in every air gap groove 421, it is filled with magnetic fillers 422.
5th embodiment
Figure 10 shows the rotor of the reluctance motor according to the 5th embodiment of the present utility model
The schematic diagram of 520, has the most been filled with magnetic in the air gap groove 521 of rotor 520 and has filled
Thing.
The 5th embodiment shown in Figure 10 is main with the first embodiment shown in Fig. 3 and Fig. 4
Difference is that the structure of air gap groove is different.
In the 5th embodiment shown in Figure 10, the often outermost air gap groove in group air gap groove
V-shaped with middle air gap groove entirety, and the air gap groove of the every inner side in group air gap groove
Overall U-shaped.
In the illustrated embodiment, as shown in Figure 10, air gap groove can not connect in centre,
Separated by rotor material, as such, it is possible to prevent rotor by excessive hollow out, to ensure that rotor has
Enough mechanical strengths.
Sixth embodiment
Figure 11 shows the rotor of the reluctance motor according to sixth embodiment of the present utility model
The schematic diagram of 620, has the most been filled with magnetic in the air gap groove 621 of rotor 620 and has filled
Thing；Figure 12 shows the rotor 620 shown in Figure 11, wherein indicates adjacent the two of rotor 620
Distance W and the half of rotor between the summit, end of the air gap groove of inner side in group air gap groove
Footpath R；Figure 13 shows the rotor shown in Figure 11, wherein indicates the flux path two ends end of rotor
Maximum electrical angle θ of center, portion angle and flux path two ends end center point A.
Sixth embodiment shown in Figure 11-Figure 13 and the first embodiment shown in Fig. 3 and Fig. 4
Differ primarily in that the structure of air gap groove is different.
In the sixth embodiment shown in Figure 11-Figure 13, often of the centre in group air gap groove
The outer side edges of the air gap groove 621 end 621a outside relative to its immediate main part 621b
While offset the first offset distance d1 and the first deviation angle α 1, and often group air gap groove in
Between the inner side edge of an air gap groove 621 end 621a relative to its immediate main part
The inner side edge of 621b offsets the second offset distance d2 and the second deviation angle α 2.Often group air gap groove
In the outer side edges of air gap groove 621 end 621a of inner side relative to its immediate
Outer side edges skew the 3rd offset distance d3 and the 3rd deviation angle α 3 of main part 621b, and
And the inner side edge of the every air gap groove 621 end 621a of inner side in group air gap groove is relative
Inner side edge in its immediate main part 621b offsets the 4th offset distance d4 and the 4th skew
Angle [alpha] 4.
In an embodiment of the present utility model, the first offset distance d1 can equal to or not
Equal to the 3rd offset distance d3, and the second offset distance d2 can be equal or different to the 4th
Offset distance d4.First deviation angle α 1 can be equal or different to the 3rd deviation angle α 3,
And the second deviation angle α 2 can be equal or different to the 4th deviation angle α 4.
In an embodiment of the present utility model, the first offset distance d1, the second offset distance
Can be equal to each other can also that from d2, the 3rd offset distance d3 and the 4th offset distance d4
This.First deviation angle α the 1, second deviation angle α 2, the 3rd deviation angle α 3 and
Four deviation angle α 4 can be equal to each other can also be each other.
In an embodiment of the present utility model, aforementioned offset distance d1, d2, d3, d4
Meet following relation: 0 ＜ d1≤1.5mm, 0 ＜ d2≤1.5mm, 0 ＜ d3≤1.5mm,
0 ＜ d4≤1.5mm.Aforementioned deviation angle α 1, α 2, α 3, α 4 meet following relation: 0 ＜ α 1≤30 °,
0 ＜ α 2≤30 °, 0 ＜ α 3≤30 °, 0 ＜ α 4≤30 °.
In an embodiment of the present utility model, as shown in Figure 12 and Figure 13, can pass through
Appropriate design aforementioned offset distance d1, d2, d3, d4 and aforementioned deviation angle α 1, α 2, α 3,
α 4 so that the summit, end of the air gap groove of inner side in the two adjacent groups air gap groove of rotor 620
Between distance W and the radius R of rotor and air gap groove group number 2p ratio meet such as ShiShimonoseki
System: 0.065≤W/ (2 π R/2p)≤0.09 (such as Figure 14)；And/or make flux path two ends end
Maximum electrical angle θ of center, portion angle meets following relation: 124 °≤θ≤140 °.
In the illustrated embodiment, the offset direction of aforementioned offset distance d1, d2, d3, d4
Identical, and the offset direction of aforementioned deviation angle α 1, α 2, α 3, α 4 is identical.
7th embodiment
Figure 15 shows the rotor of the reluctance motor according to the 7th embodiment of the present utility model
The schematic diagram of 720, has the most been filled with magnetic in the air gap groove 721 of rotor 720 and has filled
Thing.
The 7th embodiment shown in Figure 15 is main with the first embodiment shown in Fig. 3 and Fig. 4
Difference is that the structure of air gap groove is different.
In the 7th embodiment shown in Figure 15, an end of the air gap groove 721 of inner side
721a is relative to corresponding main part 721b skew preset distance and/or predetermined angular, inner side
Another end of air gap groove 721 do not offset, and except inner side air gap groove 721 it
The end of other outer air gap groove does not offsets.
8th embodiment
Figure 16 shows the rotor of the reluctance motor according to the 8th embodiment of the present utility model
The schematic diagram of 820, has the most been filled with magnetic in the air gap groove 821 of rotor 820 and has filled
Thing.
The 8th embodiment shown in Figure 16 is main with the first embodiment shown in Fig. 3 and Fig. 4
Difference is that the structure of air gap groove is different.
In the 8th embodiment shown in Figure 16, an end 821a of middle air gap groove 821
It is different from another end 821a relative to distance and the/angle of corresponding main part 821b skew
The distance of skew and/angle, i.e. the skew of two end 821a of middle air gap groove 821
Distance is different with/angle.
9th embodiment
Figure 17 shows the rotor of the reluctance motor according to the 9th embodiment of the present utility model
The schematic diagram of 920, has the most been filled with magnetic in the air gap groove 921 of rotor 920 and has filled
Thing.
The 9th embodiment shown in Figure 17 is main with the first embodiment shown in Fig. 3 and Fig. 4
Difference is that the structure of air gap groove is different.
In the 9th embodiment shown in Figure 17, an end 921a of middle air gap groove 921
Towards lateral offset, another end 921a is towards offset inboard, i.e. middle air gap groove
The offset direction of two end 921a of 921 is different.
Tenth embodiment
Figure 18 shows the rotor of the reluctance motor according to the tenth embodiment of the present utility model
The schematic diagram of 1020, is the most filled with magnetic in the air gap groove 1021 of rotor 1020
Filler.
The tenth embodiment shown in Figure 18 is main with the first embodiment shown in Fig. 3 and Fig. 4
Difference is that the structure of air gap groove is different.
In the tenth embodiment shown in Figure 18, two adjacent groups air gap groove is asymmetrically to each other.As
Shown in Figure 18, the end of corresponding two the air gap grooves 1021 in centre in two adjacent groups air gap groove
Offset distance and the angle of 1021a are unequal, and in the correspondence in two adjacent groups air gap groove
Between the offset direction of end 1021a of two air gap grooves 1021 also differ.
11st embodiment
Figure 19 shows the rotor of the reluctance motor according to the 11st embodiment of the present utility model
The schematic diagram of 1120, is the most filled with magnetic in the air gap groove 1121 of rotor 1120 and fills out
Fill thing.
The 11st embodiment shown in Figure 19 and the master of the first embodiment shown in Fig. 3 and Fig. 4
Distinguish and be that the structure of air gap groove is different.
In the 11st embodiment shown in Figure 19, two ends of middle air gap groove 1121
1121a offsets the first offset distance d1 and the first deviation angle α 1.The air gap groove 1121 of inner side
Two end 1121a only offset the second deviation angle α 2.
In the illustrated embodiment, the first deviation angle α 1 can be inclined equal or different to second
Move angle [alpha] 2.
12nd embodiment
Figure 20 shows the rotor of the reluctance motor according to the 12nd embodiment of the present utility model
The schematic diagram of 1220, is the most filled with magnetic in the air gap groove 1221 of rotor 1220
Filler.
The 12nd embodiment shown in Figure 20 and the master of the first embodiment shown in Fig. 3 and Fig. 4
Distinguish and be that the structure of air gap groove is different.
In the 12nd embodiment shown in Figure 20, middle air gap groove 1221 and inner side
The end 1221a of air gap groove 1221 interconnects mutually with the main part 1221b of corresponding air gap groove
Logical, but predetermined spaced, preset space length is more than or equal to 0.5mm and less than or equal to 0.8mm.
As such, it is possible to prevent rotor by excessive hollow out, to ensure that rotor has enough mechanical strengths,
Further, it is also possible to prevent leakage field.
It will be understood to those skilled in the art that embodiment described above is all exemplary
, and those skilled in the art can make improvements, described in various embodiments
Structure conflict in terms of not recurring structure or principle in the case of can carry out free group
Close.
Although the utility model being illustrated in conjunction with accompanying drawing, but the enforcement disclosed in accompanying drawing
Example is intended to the utility model preferred embodiment illustrative, and it is not intended that right
A kind of restriction of the present utility model.
Although some embodiments of this overall utility model design are shown and explanation, this area
Ordinarily skilled artisan will understand that, without departing substantially from the principle of this overall utility model design and spirit
In the case of, these embodiments can be made a change, scope of the present utility model with claim and
Their equivalent limits.
It should be noted that word " includes " being not excluded for other element or step, word " " or " one
Individual " be not excluded for multiple.It addition, any element numbers of claim should not be construed as limiting this
The scope of utility model.
Claims (17)
1. a motor, it is characterised in that including:
Stator；With
Rotor, is contained in described stator,
The end of at least one air gap groove of described rotor is relative to its immediate main part skew preset distance and/or predetermined angular.
Motor the most according to claim 1, it is characterised in that:
Described rotor includes the many groups air gap groove around the distribution of wherein heart septum, and often organizes described air gap groove and include the spaced apart a plurality of air gap groove of radial direction along described rotor.
Motor the most according to claim 2, it is characterised in that:
At least one end often organizing at least one air gap groove in described air gap groove offsets preset distance and/or predetermined angular relative to the main part of corresponding air gap groove.
Motor the most according to claim 3, it is characterised in that:
The end of other air gap groove in addition to often organizing an air gap groove of the outermost radial outside except being positioned at described rotor in described air gap groove offsets preset distance and/or predetermined angular relative to the main part of corresponding air gap groove.
Motor the most according to claim 3, it is characterised in that:
At least one end often organizing at least one air gap groove in described air gap groove offsets preset distance and/or predetermined angular relative to the main part of corresponding air gap groove towards or away from one group of adjacent air gap groove.
Motor the most according to claim 3, it is characterised in that: described air gap groove is U-shaped, V-type or circular arc type.
Motor the most according to claim 3, it is characterised in that: often organize each bar air gap groove in described air gap groove and there is identical or different shape.
Motor the most according to claim 3, it is characterised in that: described rotor includes four groups, six groups or eight groups of air gap grooves.
Motor the most according to claim 3, it is characterised in that: often organize described air gap groove and include the radial direction spaced apart two or three air gap groove along described rotor.
Motor the most according to claim 3, it is characterised in that:
Offset distance or the angle of often organizing the end of different air gap groove in described air gap groove are equal or unequal；
Or, the offset direction of the end often organizing the different air gap groove in described air gap groove is identical or differs；
Or, offset distance or the angle of two ends of same air gap groove are equal or unequal；
Or, the offset direction of two ends of same air gap groove is identical or differs；
Or, two adjacent groups air gap groove is symmetrical or asymmetric；
Or, offset distance or the angle of the corresponding end of two the corresponding air gap grooves in two adjacent groups air gap groove are equal or unequal；
Or, the offset direction of the corresponding end of two the corresponding air gap grooves in two adjacent groups air gap groove is identical or differs.
11. motor according to claim 3, it is characterised in that:
The end of described air gap groove and its immediate main part are interconnected or are spaced from each other preset space length, and described preset space length is more than or equal to 0.5mm and less than or equal to 0.8mm.
12. motor according to claim 3, it is characterised in that:
The main part being close to described end of described air gap groove extends along camber line, and described end is relative to the tangent offset preset distance of the curved edge line of corresponding main part and/or predetermined angular.
13. according to the motor according to any one of claim 2-12, it is characterised in that:
Distance W and the ratio of the radius R of rotor and air gap groove group number 2p between the summit, end of the air gap groove of inner side in two adjacent groups air gap groove meet following relation: 0.065≤W/ (2 π R/2p)≤0.09.
14. motor according to claim 13, it is characterised in that:
Maximum electrical angle θ of center, end, the flux path two ends angle of described rotor meets following relation: 124 °≤θ≤140 °.
15. according to the motor according to any one of claim 1-12, it is characterised in that: at least one air gap groove of described rotor, put into magnetic fillers.
16. motor according to claim 15, it is characterised in that: in same air gap groove, it is filled with one or more magnetic fillers.
17. motor according to claim 16, it is characterised in that: described motor is frequency-changeable compressor motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135418.XU CN205566051U (en) | 2015-12-29 | 2015-12-29 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135418.XU CN205566051U (en) | 2015-12-29 | 2015-12-29 | Electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205566051U true CN205566051U (en) | 2016-09-07 |
Family
ID=56822864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521135418.XU Withdrawn - After Issue CN205566051U (en) | 2015-12-29 | 2015-12-29 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205566051U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106936284A (en) * | 2015-12-29 | 2017-07-07 | 丹佛斯（天津）有限公司 | Motor |
| CN108321952A (en) * | 2018-03-16 | 2018-07-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
| CN108321955A (en) * | 2018-03-16 | 2018-07-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
| CN108321954A (en) * | 2018-03-16 | 2018-07-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
| CN108321953A (en) * | 2018-03-16 | 2018-07-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
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| CN108336842A (en) * | 2018-03-16 | 2018-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
| CN108336844A (en) * | 2018-03-16 | 2018-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
| CN108390483A (en) * | 2018-03-16 | 2018-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor structure, permanent magnetism assist in synchronization reluctance motor and electric vehicle |
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-
2015
- 2015-12-29 CN CN201521135418.XU patent/CN205566051U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20240416 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20240416 |