CN205195450U - Single -Phase permanent -Magnet motor - Google Patents
Single -Phase permanent -Magnet motor Download PDFInfo
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- CN205195450U CN205195450U CN201520700831.XU CN201520700831U CN205195450U CN 205195450 U CN205195450 U CN 205195450U CN 201520700831 U CN201520700831 U CN 201520700831U CN 205195450 U CN205195450 U CN 205195450U
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Abstract
The utility model provides a single -Phase permanent -Magnet motor, including the rotor of stator with stator rotation relatively, the stator includes stator core and winds locates the winding on the stator core, this stator core includes range upon range of first stator chip and second stator chip, a plurality of first wire winding portion that first stator chip includes first outer loop portion, inwards stretch out from first outer loop portion, from the first end terminal that every first wire winding portion end was stretched to two weeks sides, form the first trough opening between adjacent first end terminal, second stator chip include a plurality of and the first wire winding portion superpose that corresponds of inwards stretching out to superpose second outer loop portion, from second outer loop portion along the motor shaft with first outer loop portion second wire winding portion, from every second wire winding portion end to two weeks second end terminals that stretch and first end terminal superpose that correspond that incline, adjacent second end terminal forms second groove opening within a definite time, second groove open -ended width is greater than the first trough open -ended width. The utility model discloses it produces vibrations and noise to have reduced owing to the existence of big notch among the prior art.
Description
Technical field
The utility model relates to a kind of electric machine, particularly relates to a kind of electric machine with the stator core of stepped construction.
Background technology
The motor stator core of the electric machine of prior art adopts monolithic construction, and namely the outer portion of stator core and teeth portion are molded as one formula structure simultaneously, establish large notch to facilitate coiling between the pole shoe of adjacent fingers.The electric machine of this kind of structure, the existence due to large notch can cause motor to produce larger location torque, thus produces vibrations and noise.And by the restriction of large notch, positioning starting angle is little, start poor reliability.
In view of this, the utility model aims to provide a kind of electric machine of novel improved startup reliability.
Utility model content
The utility model provides a kind of electric machine, this electric machine comprise stator and can relative stator rotate rotor; Described stator comprises stator core and is set around the winding on described stator core: described stator core comprises the first stacked stator chip and the second stator chip; The first pole shoe that wherein said first stator chip comprises the first outer portion, stretch to two weeks sides from some first winding sections that described first outer portion is inwardly stretched out, from each first winding section end, forms the first channel opening between adjacent described first pole shoe; The second pole shoe that described second stator chip comprises the second outer portion, stretch to two weeks sides from some second winding sections that described second outer portion is inwardly stretched out, from each second winding section end, forms the second channel opening between adjacent described second pole shoe; Described first outer portion and described second outer portion are along motor shaft to stacked, and the first winding section and the second corresponding winding section are along motor shaft to stacked, and the first pole shoe and corresponding second pole shoe are along motor shaft to stacked.
As a kind of preferred version, the width of described second channel opening and the width of described first channel opening unequal.
As a kind of preferred version, the part that each second pole shoe is positioned at the second corresponding center line both sides, winding section is asymmetric about described second winding section center line.
As a kind of preferred version, the partial-length that each second pole shoe is positioned at the second corresponding center line both sides, winding section is different, or each second pole shoe inner surface of being positioned at the part of the second corresponding center line both sides, winding section is change to the distance of rotor center.
As a kind of preferred version, the inner peripheral surface of the first pole shoe of described first stator chip is positioned on same periphery.
As a kind of preferred version, also comprise the positioning hole groove be arranged on the first pole shoe, and each described positioning hole groove is not identical to the distance of adjacent two described first winding sections.
As a kind of preferred version, the quantity of described positioning hole groove is equal with the number of poles of the permanent-magnet pole of described rotor.
As a kind of preferred version, described positioning hole groove is the groove of the inner peripheral surface being exposed to described first pole shoe.
As a kind of preferred version, described positioning hole groove is the hole between the outer surface and inner peripheral surface of described first pole shoe.
As a kind of preferred version, the inner peripheral surface of described first pole shoe and the inner peripheral surface of described second pole shoe are circumferentially same.
As a kind of preferred version, described first winding section and described first outer portion discretely-formed; Described second winding section and described second outer portion discretely-formed.
As a kind of preferred version, described first stator chip is spliced along stator circumference by some first core assemblies, and each described first core assembly comprises one section of first arc yoke portion, stretches out described first winding section from described first arc yoke portion, stretch out described first pole shoe from the radial extremity of described first winding section to circumferential both sides; Described second stator chip is spliced along stator circumference by some second core assemblies, and each described second core assembly comprises one section of second arc yoke portion, stretches out described second winding section from described second arc yoke portion, stretch out described second pole shoe from the radial extremity of described second winding section to circumferential both sides.
As a kind of preferred version, between described first pole shoe and rotor, form air gap; The width of described first channel opening is greater than 0 and is less than 4 times of described air gap minimum thickness.
As a kind of preferred version, the permanent-magnet pole that described rotor comprises rotor magnetic core and arranges along described rotor magnetic core circumference; The outer surface of described rotor core is provided with some axially extended grooves, and each groove is positioned at the boundary of two permanent-magnet poles.
As a kind of preferred version, the outer surface of described rotor magnetic core and the inner peripheral surface of described first pole shoe or the second pole shoe are concentric circless; The thickness of described permanent magnet reduces from circumferential center gradually to two ends.
Electric machine of the present utility model adopts the stacked formation stator core of multiple stator chip of different structure, can obtain the advantage of different stator core lamella and overcome or weaken the shortcoming that one chip causes.
In order to further understand feature of the present utility model and technology contents, refer to following about detailed description of the present utility model and accompanying drawing, but institute's accompanying drawing only provide reference and explanation use, is not used for being limited the utility model.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electric machine of the utility model first embodiment;
Fig. 2 is the schematic diagram after electric machine shown in Fig. 1 removes shell;
Fig. 3 is the rough schematic view that electric machine shown in Fig. 1 removes after shell, stator winding, rotor shaft etc.
Fig. 4 is the schematic diagram of the first stator chip of the electric machine shown in Fig. 1.
Fig. 5 is the schematic diagram of the second stator chip of the electric machine shown in Fig. 1.
Fig. 6 is the rotor magnetic core of the electric machine shown in Fig. 1 and the schematic diagram of permanent magnet thereof.
Fig. 7 is the schematic diagram of the first stator chip that the utility model second embodiment provides.
Fig. 8 is the schematic diagram of the rotor magnetic core that provides of the utility model second embodiment and permanent magnet thereof.
Fig. 9 is the schematic diagram of the rotor magnetic core that provides of the utility model the 3rd embodiment and permanent magnet thereof.
Figure 10 is the schematic diagram of the first stator chip that the utility model the 3rd embodiment provides.
Figure 11 is the schematic diagram of the first stator chip, rotor magnetic core and the permanent magnet thereof that the utility model the 4th embodiment provides.
Figure 12 is the schematic diagram of the first stator chip that the utility model the 4th embodiment provides.
Figure 13 is the schematic diagram of the second stator chip that the utility model the 4th embodiment provides.
Figure 14 is the schematic diagram of the second stator chip that the utility model the 5th embodiment provides.
Embodiment
Below in conjunction with accompanying drawing, by describing in detail embodiment of the present utility model, will make the technical solution of the utility model and other beneficial effects apparent.Accompanying drawing only provides reference and explanation use, is not used for being limited the utility model.The size shown in accompanying drawing is only used to be convenient to clear description, and does not limit proportionate relationship.
First embodiment
Refer to Fig. 1 to Fig. 5, the electric machine 10 that the utility model provides comprises stator 20 and can the rotor 50 that rotates of relative stator.
This stator 20 comprise the cylindrical case 21 of one end open, the end cap 23 being installed to shell 21 openend, the stator core 30 be installed in shell 21, be installed to stator core 30 insulation coil holder 38 and to be set around on stator core and the winding 39 supported by insulation coil holder 38.This stator core 30 is laminated with some second stator chips 320 by some first stator chips 310; Wherein this first stator chip 310 the first pole shoe 315 of comprising the first outer portion 311, extending to two weeks sides from some first winding sections 313 that the first outer portion is inwardly stretched out, from each first winding section 313 end, forms the first channel opening 317 between the first adjacent pole shoe 315; The second pole shoe 325 that this second stator chip 320 comprises the second outer portion 321, extend to two weeks sides from some second winding sections 323 that this second outer portion is inwardly stretched out, from each second winding section 323 end, the width forming the second channel opening 327, second channel opening 327 between the second adjacent pole shoe 325 is greater than the width of the first channel opening 317; This first outer portion 311 and the second outer portion 321 are along motor shaft to stacked, and the first winding section 313 and the second corresponding winding section 323 are along motor shaft to stacked, and the first pole shoe 315 and corresponding second pole shoe 325 are along motor shaft to stacked.In the specific implementation, above-mentioned first stator chip 310 and the second stator chip 320 stacked by predetermined design interval.The utility model does not limit the quantity of the first stator chip and the second stator chip, its interval mode also can according to requiring to carry out predetermined design, such as the first stator chip and the second stator chip one by one interval are arranged, or two two or three second stator chips of the first stator chip interval etc.In the embodiment shown in fig. 3, adopt the first stator chip and the second stator chip spaced mode one by one, it should be noted that the quantity of stator chip is not limited to 3 layers.
Winding 39 is set around along motor shaft on the first winding section 313 after stacked and the second winding section 323, and the coil holder 38 that insulated between winding 39 and stator core 30 is isolated.Rotor 50 is contained in the receiving space that jointly surrounds along motor shaft to the first pole shoe 315 after stacked and the second pole shoe 325, along motor shaft to the first pole shoe 315 after stacked and form radial air gap 41 between the second pole shoe 325 and rotor 50.
Rotor 50 comprises rotating shaft 51, rotor magnetic core 53 and several permanent-magnet poles 55; Wherein, rotating shaft 51 is passed and is fixed together with rotor magnetic core 53 in the middle of rotor magnetic core 53.Rotating shaft 51 one end is installed to the end cap 23 of stator by bearing 24, and the other end is installed to the bottom of the cylindrical case 21 of stator by another bearing, thus realize rotor can relative to stator rotation.
As shown in Figure 6, the permanent-magnet pole 55 in the present embodiment is formed by some pieces of permanent magnets 56, such as, be 4 pieces.The outer surface of this rotor magnetic core 53 is provided with some axially extended grooves 54, and each groove 54 is positioned at the boundary of two permanent magnets 56, to reduce magnetic dispersion.These some pieces of arc-shaped permanent magnets 56 are installed to the outer surface of rotor magnetic core 53.In the present embodiment, the inner surface of the first pole shoe 315 and the second pole shoe 325 is positioned at on the concentric circles that is the center of circle of rotor 50 center; The outer surface of all permanent magnets 56 is positioned at on the face of cylinder that is the center of circle, rotor 50 center, thus forms even air gap between stator pole shoes 315,325 and rotor permanent magnet pole.Preferably, the width of the first channel opening 317 is greater than 0, and is less than or equal to 4 times of air gap 41 thickness; In the utility model, the thickness of air gap 41 refers to the radial thickness of air gap.
As shown in Figure 4, in the first stator chip, the first pole shoe 315 (comprising radially corresponding first winding section place) between adjacent first winding section is also provided with positioning hole groove 318, the number of positioning hole groove 318 is equal with the number of poles of the number of poles of stator, rotor permanent magnet pole or be the integral multiple of rotor permanent magnet pole number of poles, is 4 in the present embodiment.In the present embodiment, stator winding adopts centralized winding, and therefore, winding section quantity equals the number of poles of stator.In alternative, winding section quantity can be the integral multiple of stator poles, such as 2 times, 3 times etc.
Each positioning hole groove 318 is not identical to the distance of adjacent two the first winding sections 313, and positioning hole groove 318 is partial to one of them first adjacent winding section, the symmetrical centre of the misalignment of positioning hole groove 318 wherein adjacent first winding section.Positioning hole groove 318 is mainly used in controlling the position relative to stator when rotor stops, and avoids rotor to be parked in dead-centre position.
When motor be in non-"on" position also namely initial position time, due to the impact by positioning hole groove, the center line that the pole axis of rotor magnetic pole departs from corresponding stator winding portion also i.e. stator pole axis, thus rotor is positioned at depart from dead-centre position place.The angle that the pole axis of rotor magnetic pole and stator pole axis are formed is called and starts angle.In the present embodiment, this startup angle is greater than 45 degree of electrical degrees and is less than 135 degree of electrical degrees, and when motor stator winding passes to the electric current in a direction, rotor 50 can start from a direction; When motor stator winding passes to rightabout electric current, rotor 50 can start the other way around.Understandably, when starting angle and equaling 90 degree of electrical degrees, rotor 50 starts all than being easier to towards both direction, also namely the most easily realizes twocouese and starts.When starting angle and departing from 90 degree of electrical degrees, a rotor court wherein direction startup can be easier to than starting towards other direction.The application's utility model people finds through many experiments, and when starting angle and being in 45 degree of electrical degrees to 135 degree electrical degree scopes, the reliability that rotor starts towards both direction is all relatively good.
In the present embodiment, the second stator chip is symmetrical chip, and the part that each second pole shoe is positioned at the second corresponding center line both sides, winding section is symmetrical about described second winding section center line.Preferably, as shown in Figure 5, the radial thickness of the second pole shoe 325 of the second stator chip reduces gradually from the direction of the second winding section 323 to the second channel opening 327, and the magnetic resistance of the second pole shoe 325 is increased gradually from the second winding section to the direction of the second channel opening 327.
Above-mentioned first stator chip 310 and the second stator chip 320 can be made up of the soft magnetic material with magnetic property, such as by magnetic conduction chip (industry commonly uses silicon steel sheet) along motor shaft to being laminated.When the first stator chip 310 and the second stator chip 320 stacked time, the center of this first channel opening 317 is corresponding with the center of the second channel opening 327 overlapping; In the present embodiment, the centre position of the first channel opening 317, second channel opening 327 all between adjacent two the first winding sections 323, winding section 313/ second.
Second embodiment
Please refer to Fig. 7, with a upper embodiment unlike, in order to improve the winding efficiency of winding 39, first stator core is spliced along stator circumference by some first core assemblies 300, and each first core assembly 300 comprises one section of first arc yoke portion 311b, stretches out the first winding section 313 from the first arc yoke portion 310b, stretch out the first pole shoe 315 from the radial extremity of the first winding section 313 to circumferential both sides.In the present embodiment, each first core assembly 300 has first winding section 313 and corresponding first pole shoe 315.Understandably, each first core assembly also can have the first winding section 313 more than 1 and corresponding first pole shoe 315.Although not display in figure, second stator core is also be spliced along stator circumference by several second core assemblies identical with the first core assembly 300 shape, and each second core assembly comprises one section of second arc yoke portion, stretches out the second winding section from the second arc yoke portion, stretch out the second pole shoe from the radial extremity of the second winding section to circumferential both sides.
In the specific implementation, first by the first core assembly and the second core assembly stacked together, then installing insulating coil holder, and carry out the winding of winding; After completing winding winding, by being stitched together of this several the first core assembly stacked together and the second core assembly, thus obtain the stator core with stator winding.
In the present embodiment, the joint in the first arc yoke portion of adjacent first core assembly is provided with concaveconvex structure.Specifically, when arranging concaveconvex structure, groove screens 314 can be set each first core assembly respectively for the two ends in the first arc yoke portion being spliced into the first outer portion, and the protruding buckle 312 matched with this groove screens 314; This groove screens 314 is embossed card mouth structure with this protruding buckle 312; Equally, also can concaveconvex structure be set at the joint in the second arc yoke portion of adjacent second core assembly.
Because stator core is spliced by some first core assemblies stacked together and the second core assembly, therefore, the width between the first channel opening of adjacent first pole shoe or the second channel opening of the second pole shoe can be very little.In the utility model, the width of the first channel opening refers to the distance between adjacent two the first pole shoes; The width of the second channel opening refers to the distance between adjacent two the second pole shoes.
As shown in Figure 8, in the present embodiment, the annular permanent magnet pole 65 that rotor 60 comprises rotor magnetic core 63 and arranges along periphery of rotor, the outer surface of this annular permanent magnet pole 65 is concentric with the inner peripheral surface of the first pole shoe, the second pole shoe, thus air gap 41 is between even air gap.Particularly, the inner surface of this first pole shoe and the second pole shoe is positioned at on the concentric circles that is the center of circle of rotor 60 center.The outer surface 56 of annular permanent magnet pole 65 in cylindric, and is positioned at on the concentric circles that is the center of circle of rotor 60 center, thus forms even air gap between the first internal ring portion inner peripheral surface, permanent-magnet pole outer surface.
Annular permanent magnet pole 65 can be formed by one piece of annular permanent magnet 66, and annular permanent magnet 66 is installed to the outer surface of rotor magnetic core 63; The outer surface of this rotor magnetic core is provided with some axially extended grooves 64, and each groove 64 is positioned at the boundary of two permanent-magnet poles, to reduce magnetic dispersion.
3rd embodiment
As shown in Figure 9, in the present embodiment, rotor comprises several permanent-magnet poles 75 arranged along this periphery of rotor, and the outer surface of each permanent-magnet pole is cambered surface, and the outer surface of described permanent-magnet pole reduces toward two ends to the distance of rotor center gradually from circumferential center; Stator can be the stator in previous embodiment, when the inner surface of the first pole shoe and the second pole shoe be positioned at rotor center be the concentric circles cylinder in the center of circle time, symmetrical non-homogeneous air gap will be formed between the inner peripheral surface of permanent-magnet pole 75 and the first pole shoe, the second pole shoe.Preferably, symmetrical non-homogeneous air gap maximum ga(u)ge is more than 1.5 times of its minimum thickness.Preferably, the width of the first channel opening 317 is greater than 0, and is less than or equal to 4 times of non-homogeneous air gap minimum thickness.
Each permanent-magnet pole 75 can be formed by one piece of permanent magnet 76, and rotor also comprises rotor magnetic core 73, and this permanent magnet 76 is installed to the outer surface of rotor magnetic core 73; The outer surface of rotor magnetic core is provided with some axially extended grooves 74, and each groove 74 is positioned at the boundary of two permanent-magnet poles 75, to reduce magnetic dispersion.
Refer to Figure 10, in the present embodiment, in order to improve the winding efficiency of winding 39, stator core is the same with the second embodiment can adopt split-type structural, particularly, and the first winding section 313 and the first outer portion 311 discretely-formed.Equally, the second winding section 323 and the second outer shroud 321 discretely-formed; In the present embodiment, the second winding section 323 second pole shoe 325 corresponding with it is one overall, and this entirety is separated with the second outer portion 321.When concrete operations, by the first winding section 313 and the second winding section 323 stacked; Then installing insulating coil holder, and carry out the winding of winding; Simultaneously can by the first outer portion 311 and the second outer portion 321 stacked formation cylinder; The first winding section 313 after completing winding winding and the second winding section 323 are installed to by the first outer portion 311 and the stacked cylinder formed of the second outer portion 321, obtain the stator core with winding.
4th embodiment
Please refer to Figure 11, in the present embodiment, rotor 80 comprises several permanent-magnet poles 85 arranged along this periphery of rotor, the outer surface of each permanent-magnet pole is cambered surface, wherein each permanent-magnet pole 85 is formed by one piece of permanent magnet, this permanent magnet is installed to the outer surface of rotor magnetic core 83, and the outer surface of described permanent-magnet pole reduces toward two ends to the distance of rotor center gradually from circumferential center.The outer surface of rotor magnetic core 83 is provided with some axially extended grooves 84, and each groove 84 is positioned at the boundary of two permanent-magnet poles 85, to reduce magnetic dispersion.The thickness of the permanent magnet in the present embodiment is uniform, and the outer surface of rotor magnetic core 83 reduces to the distance of rotor center gradually from circumferential center toward two ends, and the outer surface form fit of the inner peripheral surface of permanent magnet and rotor magnetic core 83; Can alternatively, the outer surface of rotor magnetic core 83 be positioned at rotor center be the center of circle the face of cylinder on, the non-uniform thickness of permanent magnet, thickness reduces from circumferential center gradually toward two ends.
As shown in figure 12, with above-described embodiment unlike, in the present embodiment, the first stator chip does not establish positioning hole groove, and the inner surface of the first pole shoe is positioned on a concentric circles cylinder.Now, to be positioned at the part of the second corresponding center line both sides, winding section asymmetric about described second winding section center line for each second pole shoe of the second stator chip.Particularly, as shown in figure 13, in the present embodiment, the width of the part 325a of pole shoe 325 on the left of winding section 323 is greater than the width of the part 325b of pole shoe 325 on the right side of winding section 323, the inner surface of the second pole shoe 325 is change to the distance of rotor center, increase gradually as the inner surface of each the second pole shoe 325 passes through to the distance of rotor center along motor circumference, thus the air gap between rotor is increased to the other end along motor circumference gradually from one end of the second pole shoe, thus the effect of rotor fixed position can be realized, therefore, no longer positioning hole groove can be set.
5th embodiment
As shown in figure 14, in the present embodiment, the length that second pole shoe 325 of the second stator chip is positioned at the part of center line both sides, winding section is unequal, now the inner surface of the second pole shoe 325 also can be positioned at rotor center be the center of circle the face of cylinder on, namely the inner surface of the second pole shoe 325 is constant to the distance of rotor center, so arranges and the initial position of rotor can be made equally to depart from dead-centre position.In the present embodiment, the second channel opening 327 of the second stator chip also can adopt small-rabbet, and width is equal to or less than the width of the first channel opening 317.
The electric machine that the utility model embodiment is lifted, adopt the first stator chip and the stacked formation stator core of the second stator chip of different structure, decrease in prior art and produce vibrations and noise due to the existence of excessive notch, improve the reliability of electric motor starting.In addition, during startup, required starting angular and location torque can need convenient adjustment by design, thus reduce or avoid startup dead point, improve the reliability of electric motor starting, as can be conveniently adjusted electric motor starting angle by the position of adjustment pole shoe depression, when starting angle Q and being greater than 45 degree of electrical degrees and being less than 135 degree of electrical degrees, this rotor can realize twocouese and start; First channel opening width of the first stator core is less than or equal to 4 times of air gap thickness, avoids and arranges large notch between the portion of adjacent stators tooth pole in prior art and cause magnetic resistance to suddenly change, thus can reduce the location torque of motor; When stator core adopts split-type structural, make high-efficiency winding machine can be adopted to carry out coiling before winding section and outer portion are assembled, coiling production efficiency is high.
Understandably, the rotor of previous embodiment and stator can cooperatively interact, and namely the rotor of each embodiment can coordinate the stator of all embodiments, and the stator of each embodiment also can coordinate the rotor of all embodiments.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (14)
1. an electric machine, comprise stator and can relative stator rotate rotor; Described stator comprises stator core and is set around the winding on described stator core, and described rotor comprises some permanent-magnet poles, it is characterized in that: described stator core comprises stacked variform first stator chip and the second stator chip; The first pole shoe that wherein said first stator chip comprises the first outer portion, extend to two weeks sides from some first winding sections that described first outer portion is inwardly stretched out, from each first winding section end, forms the first channel opening between adjacent described first pole shoe; The second pole shoe that described second stator chip comprises the second outer portion, extend to two weeks sides from some second winding sections that described second outer portion is inwardly stretched out, from each second winding section end, forms the second channel opening between adjacent described second pole shoe; Described first outer portion and described second outer portion are along motor shaft to stacked, and the first winding section and the second corresponding winding section are along motor shaft to stacked, and the first pole shoe and corresponding second pole shoe are along motor shaft to stacked.
2. electric machine as claimed in claim 1, is characterized in that, the width of described second channel opening and the width of described first channel opening unequal.
3. electric machine as claimed in claim 1, is characterized in that, the part that each second pole shoe is positioned at the second corresponding center line both sides, winding section is asymmetric about described second winding section center line.
4. electric machine as claimed in claim 3, it is characterized in that, the partial-length that each second pole shoe is positioned at the second corresponding center line both sides, winding section is different, or each second pole shoe inner surface of being positioned at the part of the second corresponding center line both sides, winding section is change to the distance of rotor center.
5. the electric machine as described in any one of Claims 1-4, is characterized in that, the inner peripheral surface of the first pole shoe of described first stator chip is positioned on same periphery.
6. electric machine as claimed in claim 1, it is characterized in that, also comprise the positioning hole groove be arranged on the first pole shoe, and each described positioning hole groove is not identical to the distance of adjacent two described first winding sections.
7. electric machine as claimed in claim 6, is characterized in that, the quantity of described positioning hole groove is equal with the number of poles of the permanent-magnet pole of described rotor or be the integral multiple of rotor permanent magnet pole number of poles.
8. electric machine as claimed in claim 6, is characterized in that, described positioning hole groove is the groove of the inner peripheral surface being exposed to described first pole shoe or is the stealthy hole between the outer surface and inner peripheral surface of described first pole shoe.
9. electric machine as claimed in claim 1, it is characterized in that, the inner peripheral surface of described first pole shoe and the inner peripheral surface of described second pole shoe are positioned on the same face of cylinder.
10. electric machine as claimed in claim 1, is characterized in that, described first winding section and described first outer portion discretely-formed; Described second winding section and described second outer portion discretely-formed.
11. electric machine as claimed in claim 1, is characterized in that:
Described first stator chip is spliced along stator circumference by some first core assemblies, and each described first core assembly comprises one section of first arc yoke portion, described first winding section of stretching out from described first arc yoke portion, described first pole shoe from the radial extremity of described first winding section to circumferential both sides that stretch out from;
Described second stator chip is spliced along stator circumference by some second core assemblies, and each described second core assembly comprises one section of second arc yoke portion, stretches out described second winding section from described second arc yoke portion, stretch out described second pole shoe from the radial extremity of described second winding section to circumferential both sides.
12. electric machine as claimed in claim 1, it is characterized in that, described first pole shoe and the second pole shoe surround a receiving space jointly, described rotor is positioned at this receiving space, form air gap between described first pole shoe and rotor permanent magnet pole, the width of described first channel opening is greater than 0 and is less than 4 times of described air gap minimum thickness.
13. electric machine as claimed in claim 1, it is characterized in that, described first pole shoe and the second pole shoe surround a receiving space jointly, described rotor is positioned at this receiving space, and the outer surface of described permanent-magnet pole and the inner peripheral surface of described first pole shoe or the second pole shoe lay respectively on two concentric circles cylinders.
14. electric machine as claimed in claim 1, it is characterized in that, the inner peripheral surface of described first pole shoe or the inner peripheral surface of the second pole shoe are positioned on a face of cylinder, and the outer surface of described permanent-magnet pole reduces to two ends to the distance of rotor center gradually from circumferential center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700831.XU CN205195450U (en) | 2015-09-10 | 2015-09-10 | Single -Phase permanent -Magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520700831.XU CN205195450U (en) | 2015-09-10 | 2015-09-10 | Single -Phase permanent -Magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205195450U true CN205195450U (en) | 2016-04-27 |
Family
ID=55788395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520700831.XU Expired - Fee Related CN205195450U (en) | 2015-09-10 | 2015-09-10 | Single -Phase permanent -Magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205195450U (en) |
-
2015
- 2015-09-10 CN CN201520700831.XU patent/CN205195450U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20210910 |