CN203180739U - Novel stator permanent magnet motor and its stator structure - Google Patents
Novel stator permanent magnet motor and its stator structure Download PDFInfo
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- CN203180739U CN203180739U CN 201220732260 CN201220732260U CN203180739U CN 203180739 U CN203180739 U CN 203180739U CN 201220732260 CN201220732260 CN 201220732260 CN 201220732260 U CN201220732260 U CN 201220732260U CN 203180739 U CN203180739 U CN 203180739U
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Abstract
The utility model discloses a novel stator permanent magnet motor and its stator structure. According to the utility model, a plurality of work patterns can be provided, fault-tolerant operation and load capacity can be raised, power density can be increased, and vibration can be reduced. The novel stator permanent magnet motor comprises a stator and a rotor, wherein the stator is composed of a plurality of E-shaped stator sections, permanent magnets, an armature winding and a field winding. The E-shaped stator sections are uniformly arranged in circle direction with notches facing inwards and outwards and are connected together through saturated core magnetic bridges. The field winding winds the saturated core magnetic bridges. Iron core teeth at two sides of each of the E-shaped stator sections which are uniformly arranged in circle direction respectively form stator salient poles. The armature winding winds the stator salient poles. The permanent magnets are embedded and fixed between the E-shaped stator sections which are arranged in the circle direction. Thus, the stator salient poles are divided into two parts by the saturated core magnetic bridges and the permanent magnets. The rotor is a salient pole rotor, salient poles of which are uniformly arranged in circle direction.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of novel stator permanent magnetic type flux switch motor and stator structure thereof, belongs to electric driving arrangement field.
Background technology
Because energy crisis; replace electric excitation to realize that energy-conservation has been trend of the times by permanent magnet excitation; world's common recognition; present general magneto; because permanent magnet is on the rotor, make that its air-gap field is difficult to regulate, this has caused the generation of its intrinsic contradictions; be the contradiction between the maximum speed of breakdown torque and Heng Gongshuaiqu, this also limits it and is applied.
Flux switch motor is the novel electric drive motor that occurred in recent years, can exchange and be with the copped wave ac operation, it is a kind of novel buncher, has speed-regulating range width, the high excellent characteristics of power density, and the easier heat radiation of rotor permanent magnet-type motor of comparing, permanent magnet is reduced be subjected to Temperature Influence, and, permanent magnet and coil windings do not had on the rotor, be the biconvex electrode structure, therefore its is simple in structure firm, and the system reliability height is because permanent magnet places stator, therefore air-gap field is easy to regulate, and makes it be very suitable for speed governing and high-speed cruising.
For regulating air-gap field, the magnetic pass switching electromotor that occurs adopts the technical scheme of permanent magnet excitation and electric excitation and composite excitation at present, permanent magnet excitation, it is unadjustable to have magnetic flux, and defectives such as brow leakage is big, the electricity excitation has bigger current flowing loss, and present composite excitation technical scheme is for realizing excitation regulation, be cost to increase main magnetic circuit saturated all, thereby the increase loss, and in the present technical scheme, place the permanent magnet between the U-shaped stator segment to have bigger eddy current loss, except this, the permanent magnet magnetic flux passes through the air gap closure always, causes very big static torque, and this also is one of main source of torque ripple; Also because the armature winding alternate current operation places the coil windings of stator segment groove to be difficult for heat radiation, influence each other, also limit its load capacity, except this, in the technical scheme of present permanent magnet excitation and composite excitation and electric excitation, brow leakage is bigger.
Summary of the invention
The technical problem that the utility model solves provides the built-in permanent magnet-type motor of a kind of novel stator and stator structure thereof, and it can provide multiple mode of operation, raising fault-tolerant operation, weak magnetic energy power and load capacity, increase power density and reduce vibration.
For addressing the above problem, the utility model adopts following technical scheme:
The built-in permanent magnet-type motor of a kind of novel stator (0) comprising:
Stator (1);
Described stator is salient-pole structure, by stator core, armature winding and excitation winding and built-in permanent magnet (M) are formed, described stator core, ((E11-E12-E13-E14-E15-E16) and saturable core magnetic bridge (10) are formed for S1～S12) or two E type stator segment by E type stator segment, by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the gap of saturable core magnetic bridge between E type stator segment in and form, the saturable core magnetic bridge is in the gap between adjacent two E type stator segments or in stator core alternately to be arranged in the gap between the adjacent E type stator segment, and fixing adjacent two E type stator segments are one so that form two E type stator segments (E11 E12 E13 E14 E15 E16), the position is near the air gap place, middle or away from the air gap place, thus stator salient poles (SP2 SP4 SP6 SP8 SP10 SP12 SP1 SP3 SP5 SP7 SP9 SP11) formed by the outside tooth of adjacent E type stator segment with certain clearance; Described built-in permanent magnet (M), be segmentation permanent magnet (M11 M22 M33 M44 M55, M66 M77 M88), the eddy current loss that in permanent magnet, produces with the armature winding magnetic field that reduces alternation, be built in the gap between the E type stator segment in the stator core with the polarity aligned identical, so that formed the permanent magnet excitation stator salient poles (SP2 SP4 SP6 SP8 SP10 SP12) that has built-in permanent magnet, the magnetizing direction of built-in permanent magnet is for being that with armature winding the space is vertical mutually on the vertical direction of axle, and be wound with redundant excitation winding (PC1～PC5 at built-in permanent magnet, PC11～PC13), the armature winding magnetic field that described redundant excitation winding relies on alternation produces induced current, thereby reach and cause excitation function, the magnetic flux of keeping in the permanent magnet is stable.
Described saturable core magnetic bridge (10) is in saturated or high saturation condition, when saturation condition, regulates air-gap flux, and during high saturation condition, because its magnetic permeability and air are almost identical, its function is the same with the built-in permanent magnet excitation;
Described excitation winding (FC) is wound on the saturable core magnetic bridge (10) in the stator core, so that has formed the adjustable composite excitation stator salient poles (SP1 SP3 SP5 SP7 SP9 SP11) of excitation;
In the described armature winding (C2 C4 C6 C8 C10 C12 C1 C3 C5 C7 C9 C11), armature winding (C2 C4 C6 C8 C10 C12) is wound on the permanent magnet excitation stator salient poles (SP2 SP4 SP6 SP8 SP10 SP12), armature winding (C1 C3 C5 C7 C9 C11) is wound on the adjustable composite excitation stator salient poles of excitation (SP1 SP3 SP5 SP7 SP9 SP11), is embedded in two adjacent grooves of adjacent E type stator segment;
Wherein, can arrange a plurality of saturable core magnetic bridges between the described E type stator segment, to strengthen the excitation regulation performance;
Wherein said saturable core magnetic bridge is " H " type (H);
Wherein, the center tooth (9) in the described E type stator segment does not have winding around, and the increment shape can adopt any form, vibrates to reduce with auxiliary armature winding heat radiation and optimization air-gap field;
Wherein, the punching of being made by permeability magnetic material of described stator core is overrided to form; Described built-in permanent magnet is magnet steel such as ferrite or ferro-aluminum boron;
Wherein, stator and rotor can constitute internal rotor, outer-rotor structure and axial disk electric machine structure,
Inner rotor core, the rotor with salient pole direction is outside, and the stator core notch is inwardly near air gap;
In the outer-rotor structure, the rotor with salient pole direction is inside, and the stator core notch is inwardly near air gap;
In the axial disk electric machine structure, the rotor with salient pole direction vertically, therefore stator rabbet, alternatively, also can make up two stator shaft orientation disc type electric machines in this way vertically near air gap.
Wherein, described stator structure can be radially, axial arranged with parallel with axle transverse arrangement of turbo.
Rotor (R);
Described rotor is salient-pole structure, have a plurality of rotor with salient pole of evenly arranging along circumference, epitrochanterian salient pole is quadratic surface shape (3) near two ends, air gap place, and it is outstanding to two ends, thereby the air gap between the air gap pole-face two ends of formation stator salient poles and the air gap pole-face two ends of rotor with salient pole is that ladder becomes structure, is conducive to reduce torque ripple and vibration.
Wherein, the punching of being made by permeability magnetic material of described rotor is overrided to form.
The built-in permanent magnet-type motor of a kind of novel stator (01) comprising:
Stator (21);
Described stator is salient-pole structure, by stator core, armature winding and excitation winding and built-in permanent magnet and halbach magnet ring are formed, described stator core, by E type stator segment or two E type stator segment (E111-E121-E131-E141-E151-E161) form with saturable core magnetic bridge (101), by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the gap of saturable core magnetic bridge (101) between E type stator segment in and form, alternately arrange in the gap between the adjacent E type stator segment in the gap during the saturable core magnetic bridge is between adjacent two E type stator segments (S111 S121 S131 S141 S151 S161 S171 S181 S191 S201 S211 S221) or in stator core, and fixing adjacent two E type stator segments are one so that form two E type stator segments (E111-E121-E131-E141-E151-E161), the position is near the air gap place, middle or away from the air gap place, thus stator salient poles (SP21 SP22 SP23 SP24 SP25 SP26 SP27 SP28 SP29 SP30 SP31 SP32) formed by two outside teeth of adjacent E type stator segment mutually with certain clearance; Described built-in permanent magnet (M0), be segmentation permanent magnet (M01 M02 M03 M04 M05, M06 M07 M08), the eddy current loss that in permanent magnet, produces with the armature winding magnetic field that reduces alternation, be built in the gap between the E type stator segment in the stator core according to the polar orientation aligned identical, so that formed the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32) that has built-in permanent magnet, the magnetizing direction of permanent magnet is vertical mutually with armature winding space on square with the axis direction, and be wound with redundant excitation winding (PC10 PC20 PC30 PC40 PC50 at built-in permanent magnet, PC110 PC120 PC130), the armature winding magnetic field that described redundant excitation winding relies on alternation produces induced current, thereby reach and cause excitation function, the magnetic flux of keeping in the built-in permanent magnet is stable; Described halbach magnet ring (011) is fixed in stator core yoke portion, the polarity arrangement of halbach magnet ring is identical with polarity in the stator core, the polarity that is corresponding E type stator segment in the stator core is N, then the polarity of Dui Ying halbach magnet ring also is N, can increase the air-gap flux of the corresponding stator segment of motor like this, thereby increase energy density.
Described saturable core magnetic bridge (101) is in saturated or high saturation condition, when saturation condition, regulates air-gap flux, and during high saturation condition, because its magnetic permeability and air are almost identical, its function is the same with permanent magnet excitation;
Described excitation winding (FC01) is wound on the saturable core magnetic bridge (101) in the stator core, so that has formed the adjustable composite excitation stator salient poles (SP21 SP23 SP25 SP27 SP29 SP31) of excitation;
In the described armature winding (C111 C121 C131 C141 C151 C161 C171 C181 C191 C201 C211 C221), armature winding (C121 C141 C161 C181 C201 C221) is wound on the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32), armature winding (C1 C3 C5 C7 C9 C11) is wound on the adjustable composite excitation stator salient poles of excitation (SP21 SP23 SP25 SP27 SP29 SP31), is embedded in two adjacent grooves of adjacent E type stator segment;
Wherein, can arrange a plurality of saturable core magnetic bridges (101) between the described E type stator segment, to strengthen the excitation regulation performance;
Wherein, described saturable core magnetic bridge is " H " type (G);
Wherein, the center tooth (90) in the described E type stator segment does not have winding around, and the increment shape can adopt any form, vibrates to reduce with auxiliary armature winding heat radiation and optimization air-gap field;
Wherein, the punching of being made by permeability magnetic material of described stator core is overrided to form; Described permanent magnet is that ferrite or ferro-aluminum boron equimagnetic steel are made;
Wherein, stator and rotor can constitute internal rotor, outer-rotor structure and axial disk electric machine structure,
Inner rotor core, the rotor with salient pole direction is outside, and the stator core notch is inwardly near air gap;
In the outer-rotor structure, the rotor with salient pole direction is inside, and the stator core notch is inwardly near air gap;
In the axial disk electric machine structure, the rotor with salient pole direction vertically, therefore stator rabbet, alternatively, also can make up two stator shaft orientation disc type electric machines in this way vertically near air gap.
Wherein, described stator structure can be radially, axial arranged with parallel with axle transverse arrangement of turbo.
Rotor (R1);
Described rotor is salient-pole structure, have a plurality of rotor with salient pole of evenly arranging along circumference, epitrochanterian salient pole is quadratic surface shape (4) near two ends, air gap place, and it is outstanding to two ends, thereby the air gap between the air gap pole-face two ends of formation stator salient poles and the air gap pole-face two ends of rotor with salient pole is that ladder becomes structure, is conducive to reduce torque ripple and vibration.
The stator structure of the built-in permanent magnet-type motor of a kind of novel stator is characterized in that, comprising:
Described stator is salient-pole structure, formed by stator core, armature winding and excitation winding and built-in permanent magnet and halbach magnet ring,
Stator core, described stator core, by E type stator segment or two E type stator segment (E111-E121-E131-E141-E151-E161) form with saturable core magnetic bridge (101), by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the gap of saturable core magnetic bridge (101) between E type stator segment in and form, the saturable core magnetic bridge is in the gap between adjacent two E type stator segments (S111 S121 S131 S141 S151 S161 S171 S181 S191 S201 S211 S221) or in stator core alternately to be arranged in the gap between the adjacent E type stator segment, and fixing adjacent two E type stator segments are one so that form two E type stator segments (E111-E121-E131-E141-E151-E161), the position is near the air gap place, middle or away from the air gap place, thus stator salient poles (SP21 SP22 SP23 SP24 SP25 SP26 SP27 SP28 SP29 SP30 SP31 SP32) formed by two outside teeth of adjacent E type stator segment mutually with certain clearance;
Built-in permanent magnet, described built-in permanent magnet (M0), be segmentation permanent magnet (M01 M02 M03 M04 M05, M06 M07 M08), the eddy current loss that in permanent magnet, produces with the armature winding magnetic field that reduces alternation, be built in the gap between the E type stator segment in the stator core according to the polar orientation aligned identical, so that formed the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32) that has built-in permanent magnet, the magnetizing direction of built-in permanent magnet is vertical mutually with armature winding space on square with the axis direction, and be wound with redundant excitation winding (PC10 PC20 PC30 PC40 PC50 at built-in permanent magnet, PC110 PC120 PC130), the armature winding magnetic field that described redundant excitation winding relies on alternation produces induced current, thereby reach and cause excitation function, the magnetic flux of keeping in the built-in permanent magnet is stable;
The Halbach magnet ring, described halbach magnet ring (011) is fixed in stator core yoke portion, the polarity arrangement of halbach magnet ring is identical with polarity in the stator core, the polarity that is corresponding E type stator segment in the stator core is N, then the polarity of Dui Ying halbach magnet ring also is N, can increase the air-gap flux of the corresponding stator segment of motor like this, thereby increase energy density;
Described saturable core magnetic bridge (101) is " H " type, is in saturated or high saturation condition, when saturation condition, regulates air-gap flux, and during high saturation condition, because its magnetic permeability and air are almost identical, its function is the same with permanent magnet excitation;
Excitation winding, described excitation winding (FC01) are wound on the saturable core magnetic bridge (101) in the stator core, so that have formed the adjustable composite excitation stator salient poles (SP21 SP23 SP25 SP27 SP29 SP31) of excitation;
Armature winding, in the described armature winding (C111 C121 C131 C141 C151 C161 C171 C181 C191 C201 C211 C221), armature winding (C121 C141 C161 C181 C201 C221) is wound on the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32), armature winding (C1 C3 C5 C7 C9 C11) is wound on the adjustable composite excitation stator salient poles of excitation (SP21 SP23 SP25 SP27 SP29 SP31), is embedded in two adjacent grooves of adjacent E type stator segment;
Wherein, can arrange a plurality of magnetic saturation bridges (101) between the described E type stator segment, to strengthen the excitation regulation performance;
Wherein, the center tooth (90) in the described E type stator segment does not have winding around, and the increment shape can adopt any form, vibrates to reduce with auxiliary armature winding heat radiation and optimization air-gap field;
Wherein, the punching of being made by permeability magnetic material of described stator core is overrided to form; Described built-in permanent magnet is that ferrite or ferro-aluminum boron equimagnetic steel are made;
Wherein, stator rabbet can wait layout inwardly, outwards and vertically,
Alternatively, also can make up two stator shaft orientation disc type electric machines in this way, namely two notches are back to distinguishing vertically towards air gap;
The utility model built-in permanent magnet-type motor of a kind of novel stator and stator structure thereof are a kind of flux switch motor, change the closed path of magnetic circuit by the magnetic pole its specific structure, thereby output torque externally does work, the existing scheme of comparing, and the utility model obtains following significant beneficial effect:
1) saturable core magnetic bridge and winding excitation winding thereon are except realizing the excitation and magnetic resistance function the same with permanent magnet, the mixed excited magnetic pass that makes permanent magnet excitation and electro-magnetic flux form significantly can be regulated, realize multiple mode of operation, also possesses very high fault-tolerant operation ability, to reduce static torque, reduce vibration;
2) by the permanent magnet of segmentation, reduce the eddy current loss of the permanent magnet inside that the magnetic circuit because of the armature winding magnetic field of alternation and variation produces significantly, thereby obviously raise the efficiency;
3) by the heat conduction function of the center tooth in the E type stator segment, improve the heat-sinking capability of armature winding significantly, and then improve the load capacity of motor significantly;
4) the halbach magnet ring is installed by stator core yoke portion, can improve air gap flux density significantly, and reduce brow leakage, can adopt cheap ferrite as permanent magnet like this.
5) ladder that forms between stator and the rotor with salient pole two ends becomes gap structure, is conducive to reduce torque ripple, thereby reduces vibration and noise.
Description of drawings
Fig. 1 is 12,/10 one kind of built-in permanent magnet-type motor of novel stator and stator (0) structural representation thereof of the utility model first specific embodiment;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is according to 12,/10 one kind of built-in permanent magnet-type motor of novel stator of the present utility model and stator (01) example structure schematic diagram thereof;
Fig. 4 is the halbach ring schematic diagram among Fig. 3;
Fig. 5 is the partial enlarged drawing of Fig. 3.
Embodiment
Now will be by reference to the accompanying drawings, the utility model is further described, provided example of the present utility model in the accompanying drawing.
With reference to figure 1, present embodiment is 12 E type stator segments (S1 S2 S3S4 S5 S6 S7 S8 S9 S10 S11 S12) and 10 built-in permanent magnet-type motors of 12/10 threephase stator (0) that rotor with salient pole is formed, stator (1) is by stator core, armature winding (C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12), excitation winding (FC), built-in permanent magnet (M) and redundant excitation winding (PC1～PC5, PC11～PC13) form, described stator core is made up of E type stator segment and saturable core magnetic bridge (10), the saturable core magnetic bridge of evenly being arranged and being positioned between the E type stator segment along circumference with certain clearance by E type stator segment forms, and the center tooth (9) of E type stator segment does not have the winding around winding; The saturable core magnetic bridge is H type (H); Among this embodiment, the saturable core magnetic bridge replaces fixed and arranged in E type stator segment (S1 S12, S2 S3, S4 S5, S6 S7, S8 S9, S10 S11) between, the E type stator segment that the saturated core magnetic bridge is fixedly linked is one, the two E type stator segments of formation (E11-E12-E13-E14-E15-E16), adjacent E type stator segment both sides tooth has formed two kinds of stator salient poles mutually with certain clearance, be respectively the composite excitation salient pole (SP1 SP3 SP5 SP7 SP9 SP11) and the permanent magnet excitation salient pole (SP2 SP4 SP6 SP8 SP10 SP12) that have the saturable core magnetic bridge, excitation winding (FC) is for concentrating winding, be wound on the saturated core magnetic bridge (10), present embodiment has 6 cover excitation winding, built-in permanent magnet (M) is that (present embodiment has 6 cover M11 M22 M33 M44 M55 groups to the segmentation permanent magnet, 6 cover M66 M77 M88 groups), two set of segmentation set of permanent magnets (M11 M22 M33 M44 M55) are arranged fixed placement in the gap of permanent magnet excitation stator salient poles and composite excitation stator salient poles in the identical mode of polarity respectively with (M66 M77 M88), redundant excitation winding alternately is wound on the segmentation permanent magnet, its axis is identical with excitation winding (FC), like this, when static, polarity in each E type stator segment is identical and replace along stator core, be N-S-N-S ... .., during enforcement, redundant excitation winding can form from closed-loop structure; Armature winding is wound on two kinds of stator salient poles; During enforcement, whenever, formed with the armature winding of a pair of radially relative permanent magnet excitation stator salient poles by the armature winding that is wound in a pair of radially relative composite excitation stator salient poles, so that obtain fault-tolerant ability, the link in parallel of every two pairs of armature winding in mutually, like this, when permanent magnet demagnetized, this was by electric excitation assurance work; The excitation winding (FC) that is wound on the saturable core magnetic bridge is connected in series alternatively, also can control respectively excitation winding like this by being connected in parallel after three groups of radially relative excitation winding series connection, regulates air-gap flux, reaches to cause the high fault tolerance energy; By shown in Figure 1, suppose that three-phase is respectively A/B/C, therefore, A is C1 mutually, C7 and C4, C10, B is C2 mutually, C8 and C5, C11, C is C3 mutually, C9 and C6, C12, so C1 of the on-link mode (OLM) of A phase series connection, the C4 of C7 and series connection, the C10 parallel connection, B is the C2 for connecting mutually, the C5 of C8 and series connection, the C11 parallel connection, C is the C3 for connecting mutually, the C6 of C9 and series connection, the C12 parallel connection, the excitation winding connected mode is two excitation winding series connection back parallel connections that belong to every phase, controls C1 by the electro-magnetic flux that excitation winding produces, the saturation of the saturable core magnetic bridge in the C7 phase stator salient poles reaches the function that causes the adjusting air-gap flux.
Built-in permanent magnet between the described E of being in type stator segment is the segmentation permanent magnet.
Described armature winding is wound on the stator salient poles, places the E type stator segment groove of stator salient poles both sides respectively.
Described saturable core magnetic bridge works in saturated and high saturation condition respectively.
Rotor (R) is salient-pole structure, it is characterized in that, described salient pole two ends are hyperboloid assembly (3), reaches the stator salient poles pole-face two ends of making peace and forms ladder change air gap.
Be the specific embodiment of the built-in permanent magnet-type motor of a kind of novel stator of the present utility model (01) with reference to figure 3, component Name is stator (21), halbach magnet ring (011), E type stator segment (S111 S121 S131 S141 S151 S161 S171 S181 S191 S201 S211 S221), the two E type of E type stator segment center tooth (90) stator segment (E111-E121-E131-E141-E151-E161), saturable core magnetic bridge (101), the H type (G) of saturable core magnetic bridge, stator salient poles (SP21 SP22 SP23 SP24 SP25 SP26 SP27 SP28 SP29 SP30 SP31 SP32), permanent magnet (M0), segmentation permanent magnet (M01 M02 M03 M04 M05, M06 M07 M08), redundant excitation winding (PC10 PC20 PC30 PC40 PC50, PC110 PC120 PC130), permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32), composite excitation stator salient poles (SP21 SP23 SP25 SP27 SP29 SP31), excitation winding (FC01), armature winding (C111 C121 C131 C141 C151 C161 C171 C181 C191 C201 C211 C221).Rotor (R1), hyperboloid assembly (4).
Stator is by stator core, armature winding, excitation winding, permanent magnet and halbach magnet ring are formed, stator core by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the gap of saturable core magnetic bridge between E type stator segment in and form, alternately arrange in the gap between the adjacent E type stator segment in the gap during the saturable core magnetic bridge is between adjacent two E type stator segments or in stator core, and fixing adjacent two the E type stator segments that link to each other with the saturable core magnetic bridge are one so that form pair E type stator segments (E111-E121-E131-E141-E151-E161), the position is near the air gap place or away from the air gap place, thereby forms stator salient poles (SP21 SP22 SP23 SP24 SP25 SP26 SP27 SP28 SP29 SP30 SP31 SP32) by two mutual certain clearance of outside tooth of adjacent E type stator segment; Described built-in permanent magnet (M0), be segmentation permanent magnet (M01 M02 M03 M04 M05, M06 M07 M08), the eddy current loss that in permanent magnet, produces with the armature winding magnetic field that reduces alternation, arrange in the gap between the E type stator segment of fixed placement in stator core, so that formed the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32) that has built-in permanent magnet, the magnetizing direction of built-in permanent magnet is for being that with armature winding the space is vertical mutually on the vertical direction of axle, and be wound with redundant excitation winding (PC10 PC20 PC30 PC40 PC50 at built-in permanent magnet, PC110 PC120 PC130), the armature winding magnetic field that described redundant excitation winding relies on alternation produces induced current, thereby reach and cause excitation function, the magnetic flux of keeping in the permanent magnet is stable.Described halbach magnet ring (011) is fixed in stator core yoke portion, in concrete the enforcement, the polarity arrangement of halbach magnet ring is identical with polarity in the stator core, the polarity that is corresponding E type stator segment in the stator core is N, then the polarity of Dui Ying halbach magnet ring also is N, can increase the air-gap flux of the corresponding stator segment of motor like this, thereby increase energy density.Also can eliminate the brow leakage of built-in permanent magnet in the stator salient poles effectively.
Described saturable core magnetic bridge (101) is in saturated or high saturation condition, during saturation condition, regulates air-gap flux, and during high saturation condition, because its magnetic permeability and air are almost identical, its function is the same with permanent magnet excitation;
Described excitation winding (FC01) is wound on the saturable core magnetic bridge (101) in the stator core, so that has formed the adjustable composite excitation stator salient poles (SP21 SP23 SP25 SP27 SP29 SP31) of excitation;
In the described armature winding (C111 C121 C131 C141 C151 C161 C171 C181 C191 C201 C211 C221), armature winding (C121 C141 C161 C181 C201 C221) is wound on the permanent magnet excitation stator salient poles (SP22 SP24 SP26 SP28 SP30 SP32), armature winding (C1 C3 C5 C7 C9 C11) is wound on the adjustable composite excitation stator salient poles of excitation (SP21 SP23 SP25 SP27 SP29 SP31), is embedded in two adjacent grooves of adjacent E type stator segment;
Wherein, can arrange a plurality of saturable core magnetic bridges (101) between the described E type stator segment, to strengthen the excitation regulation performance;
Wherein, the center tooth (90) in the described E type stator segment does not have winding around, and the increment shape can adopt any form, vibrates to reduce with auxiliary armature winding heat radiation and optimization air-gap field;
Wherein, the punching of being made by permeability magnetic material of described stator core is overrided to form; Described permanent magnet is magnet steel such as ferrite or ferro-aluminum boron;
Wherein, stator and rotor can constitute internal rotor, outer-rotor structure and axial disk electric machine structure,
Inner rotor core, the rotor with salient pole direction is outside, and the stator core notch is inwardly near air gap;
In the outer-rotor structure, the rotor with salient pole direction is inside, and the stator core notch is inwardly near air gap;
In the axial disk electric machine structure, the rotor with salient pole direction vertically, therefore stator rabbet, preferably, also can make up two stator shaft orientation disc type electric machines in this way vertically near air gap.
Wherein, described stator structure can be radially, axial arranged with parallel with axle transverse arrangement of turbo.
Rotor (R1);
Described rotor is salient-pole structure, have a plurality of rotor with salient pole of evenly arranging along circumference, epitrochanterian salient pole is quadratic surface shape (4) near two ends, air gap place, and it is outstanding to two ends, thereby the air gap between the air gap pole-face two ends of formation stator salient poles and the air gap pole-face two ends of rotor with salient pole is that ladder becomes structure, is conducive to reduce torque ripple and vibration.
In addition, also need to illustrate, although specific embodiment of the utility model discloses as mentioned above, but the utility model can be used the flux switch motor of other forms of different rotor salient pole combinations, for example all 12/10 structure with above is similar for other structure applications inner and outer rotors of the present utility model such as 6/8,12/10,12/14 and axial magnetic flux switch motor execution mode, repeats no more here.
Though embodiment of the present utility model has disclosed as above, the utility model is not limited to above-described embodiment, and any those skilled in the art are not in breaking away from the disclosed scope of the utility model, when doing a little change and adjustment.
Claims (1)
1. a novel stator permanent magnetic type electric is characterized in that, comprises stator; Described stator is salient-pole structure, by stator core, armature winding and excitation winding and built-in permanent magnet are formed, described stator core, formed by E type stator segment or two E type stator segment and saturable core magnetic bridge, separating uniform and saturable core magnetic bridge along circumference with certain clearance by E type stator segment or two E type stator segment is positioned in the gap between the E type stator segment along circumference and forms, alternately arrange in the gap between the adjacent E type stator segment in the gap during the saturable core magnetic bridge is between adjacent two E type stator segments or in stator core, and fixing adjacent two E type stator segments are one so that form two E type stator segments, the position is near the air gap place, middle or away from the air gap place, thus stator salient poles formed with certain interval mutually by the outside tooth of adjacent E type stator segment; Described built-in permanent magnet, be the segmentation permanent magnet, arrange in the gap between the E type stator segment of fixed placement in stator core, so that formed the permanent magnet excitation stator salient poles that has built-in permanent magnet, the magnetizing direction of built-in permanent magnet is and the armature winding spatial vertical, and is wound with redundant excitation winding at built-in permanent magnet;
Can arrange a plurality of saturable core magnetic bridges between the described E type stator segment;
Described saturable core magnetic bridge is in saturated or high saturation condition when working;
Described saturated core magnetic bridge is " H " type;
Described armature winding is wound on the stator salient poles, is embedded in two adjacent grooves of adjacent E type stator segment;
Described excitation winding is wound on the saturable core magnetic bridge in the stator core, so that has formed the composite excitation stator salient poles;
The punching that described stator core is made by permeability magnetic material is overrided to form; Described built-in permanent magnet is magnet steel such as ferrite or ferro-aluminum boron;
Rotor; Described rotor is salient-pole structure, have a plurality of rotor with salient pole of evenly arranging along circumference, the punching of being made by permeability magnetic material is overrided to form, epitrochanterian salient pole is the quadratic surface shape near pole-face two ends, air gap place, and to two side-prominent, thereby the air gap that forms between the air gap pole-face two ends of the air gap pole-face two ends of stator salient poles and rotor with salient pole be ladder change structure.
2. novel stator permanent magnetic type electric according to claim 1 is characterized in that, the center tooth in the E type stator segment does not have winding around, and described center tooth end shape is " ⊥ " type or " ⌒ ".
3. novel stator permanent magnetic type electric according to claim 1 is characterized in that, stator and rotor can constitute internal rotor, outer-rotor structure and axial disk electric machine structure,
Inner rotor core, the rotor with salient pole direction is outside, and the stator core notch is inwardly near air gap;
In the outer-rotor structure, the rotor with salient pole direction is inside, and the stator core notch is inwardly near air gap;
In the axial disk electric machine structure, the rotor with salient pole direction vertically, stator rabbet makes up single stator, two stator and many rotor axials of multiple stators disc type electric machine in this way vertically near air gap.
4. novel stator permanent magnetic type electric according to claim 1 is characterized in that, described stator structure can be radially, axial arranged with parallel with axle transverse arrangement of turbo.
5. a novel stator permanent magnetic type electric is characterized in that, comprises stator; Described stator is salient-pole structure, by stator core, armature winding and excitation winding and built-in permanent magnet and halbach magnet ring are formed, described stator core, formed by E type stator segment or two E type stator segment and saturable core magnetic bridge, by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the saturable core magnetic bridge along in the gap of circumference between E type stator segment and form, the saturable core magnetic bridge is in the gap between adjacent two E type stator segments or alternately is arranged in the gap between the adjacent E type stator segment in the stator core, and fixing adjacent two E type stator segments are one so that form two E type stator segments, the position is near air gap, middle or away from the air gap position, thus stator salient poles formed by the outside tooth of adjacent E type stator segment with certain clearance; Described built-in permanent magnet, be the segmentation permanent magnet, arrange in the gap between the E type stator segment of fixed placement in stator core, so that the composite excitation stator salient poles that has built-in permanent magnet and saturable core magnetic bridge and/or the permanent magnet excitation stator salient poles of having only permanent magnet have been formed, the magnetizing direction of built-in permanent magnet is and the armature winding spatial vertical, and is wound with redundant excitation winding at built-in permanent magnet; Described halbach magnet ring is fixed in the yoke portion end of stator core;
Center tooth in the described E type stator segment does not have winding around, and the end shape of center tooth is " ⊥ " type or " ⌒ ";
Can arrange a plurality of saturable core magnetic bridges between the described E type stator segment;
Described saturable core magnetic bridge is in saturated or high saturation condition;
Described saturable core magnetic bridge is " H " type;
Described armature winding is wound on the stator salient poles, is embedded in two adjacent grooves of adjacent E type stator segment;
Described excitation winding for concentrating winding, is wound on the saturable core magnetic bridge in the stator core, so that has formed the composite excitation stator salient poles;
The punching that described stator core is made by permeability magnetic material is overrided to form, and described built-in permanent magnet is magnet steel such as ferrite or ferro-aluminum boron;
Rotor; Described rotor is salient-pole structure, have a plurality of rotor with salient pole of evenly arranging along circumference, the punching of being made by permeability magnetic material is overrided to form, epitrochanterian salient pole pole-face two ends are the quadratic surface shape, and to two side-prominent, thereby the air gap that forms between the air gap pole-face two ends of the air gap pole-face two ends of stator salient poles and rotor with salient pole be ladder change structure.
6. novel stator permanent magnetic type electric according to claim 5, it is characterized in that, the polarity arrangement of halbach magnet ring is identical with polarity in the stator core, the polarity that is corresponding E type stator segment in the stator core is N, then the polarity of Dui Ying halbach magnet ring also is N, and is identical to the layout of the S utmost point.
7. novel stator permanent magnetic type electric according to claim 5 is characterized in that, stator and rotor can constitute internal rotor, outer-rotor structure and axial disk electric machine structure,
In the inner rotor core, the rotor with salient pole direction is outside, and the stator core notch is inwardly near air gap, and the halbach magnet ring radially is fixed in the stator yoke portion end outside;
In the outer-rotor structure, the rotor with salient pole direction is inside, and the stator core notch is inwardly near air gap, and it is inboard that the halbach magnet ring radially is fixed in stator yoke portion end;
In the axial disk electric machine structure, the rotor with salient pole direction vertically, stator rabbet is vertically near breath, the halbach magnet ring is fixed in the stator yoke portion outside vertically, makes up single stator, two stator and many rotor axials of multiple stators disc type electric machine in this way.
8. novel stator permanent magnetic type electric according to claim 5 is characterized in that, described stator structure can be radially, axial arranged with parallel with axle transverse arrangement of turbo.
9. the stator structure of the built-in permanent magnet-type motor of novel stator is characterized in that, comprising:
Stator core, described stator are salient-pole structure, formed by stator core, armature winding and excitation winding and built-in permanent magnet and/or halbach magnet ring,
Described stator core, formed by E type stator segment or two E type stator segment and saturable core magnetic bridge, the saturable core magnetic bridge is " H " type, by E type stator segment or two E type stator segment along circumference separate uniform with certain clearance and the gap of saturable core magnetic bridge between E type stator segment in and form, during the saturable core magnetic bridge is between adjacent two E type stator segments or alternately be arranged in the gap between the adjacent E type stator segment in the stator core, and fixing adjacent two E type stator segments are one so that form two E type stator segments, the position is near the air gap place or away from the air gap place, thereby the outside tooth by adjacent E type stator segment forms two kinds of stator salient poles with certain clearance, a kind of composite excitation stator salient poles that has the saturable core magnetic bridge, a kind of permanent magnet excitation stator salient poles that does not have the saturable core magnetic bridge;
Built-in permanent magnet, described built-in permanent magnet, be segmentation permanent magnet and halbach magnet ring, the segmentation permanent magnet is with in the identical gap that is built in the stator salient poles in the stator core of polarity, the magnetizing direction of built-in permanent magnet is and the armature winding spatial vertical, and is wound with redundant excitation winding at built-in permanent magnet; Described halbach magnet ring is fixed in the yoke portion end of stator core;
Excitation winding, described excitation winding is wound on the saturable core magnetic bridge in the stator core for concentrating winding, so that has formed the composite excitation stator salient poles;
Center tooth in the described E type stator segment does not have winding around, and the increment shape can adopt any form;
Can arrange a plurality of magnetic saturation bridges between the described E type stator segment;
Described saturable core magnetic bridge is in saturated or high saturation condition;
Armature winding, described armature winding is wound on the stator salient poles, is embedded in two adjacent grooves of adjacent E type stator segment;
The folded rock of punching that described stator core is made by permeability magnetic material forms, and described permanent magnet is magnet steel such as ferrite or ferro-aluminum boron.
10. stator structure according to claim 9 is characterized in that, described stator structure can be radially, axially and transverse arrangement of turbo.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220732260 CN203180739U (en) | 2012-12-27 | 2012-12-27 | Novel stator permanent magnet motor and its stator structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220732260 CN203180739U (en) | 2012-12-27 | 2012-12-27 | Novel stator permanent magnet motor and its stator structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066786A (en) * | 2012-12-27 | 2013-04-24 | 周智庆 | Novel stator permanent magnet type motor and stator structure thereof |
| CN109732709A (en) * | 2019-02-01 | 2019-05-10 | 杭州精锋园林工具有限公司 | Hard alloy tooth top square tooth type chain saw and control method |
| EP3540917A4 (en) * | 2016-12-20 | 2020-06-10 | Daikin Industries, Ltd. | Rotary electric machine |
| CN111404289A (en) * | 2020-03-25 | 2020-07-10 | 中国科学院电工研究所 | Magnetic-thermal isolation type stator structure and motor |
-
2012
- 2012-12-27 CN CN 201220732260 patent/CN203180739U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066786A (en) * | 2012-12-27 | 2013-04-24 | 周智庆 | Novel stator permanent magnet type motor and stator structure thereof |
| EP3540917A4 (en) * | 2016-12-20 | 2020-06-10 | Daikin Industries, Ltd. | Rotary electric machine |
| CN109732709A (en) * | 2019-02-01 | 2019-05-10 | 杭州精锋园林工具有限公司 | Hard alloy tooth top square tooth type chain saw and control method |
| CN111404289A (en) * | 2020-03-25 | 2020-07-10 | 中国科学院电工研究所 | Magnetic-thermal isolation type stator structure and motor |
| CN111404289B (en) * | 2020-03-25 | 2021-01-12 | 中国科学院电工研究所 | Magnetic-thermal isolation type stator structure and motor |
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