CN103812248A - Electrical machine and rotor therefor - Google Patents
Electrical machine and rotor therefor Download PDFInfo
- Publication number
- CN103812248A CN103812248A CN201310548401.6A CN201310548401A CN103812248A CN 103812248 A CN103812248 A CN 103812248A CN 201310548401 A CN201310548401 A CN 201310548401A CN 103812248 A CN103812248 A CN 103812248A
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- rotor
- rotor core
- motor
- permanent magnet
- groove
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to an electrical machine (100), in particular power and torque of a rotor core (112) are increase to reduce the weight and volume of the structural elements. As proposed by the present invention, a rotatable rotor (110) with an annular ring is rotatable around a rotation axis, an annular magnetically permeable rotor core showing at lest substantially annular of the rotor is provided with at leaste one groove (116 ), and in at least one of the at least one groove, permanent magnets (117,118) in pairs to each other at an obtuse, with its vertex in the directed at the axis of rotation angle (119) and by a continuous magnetically non-conductive first space portion (120) are disposed spaced apart and the rotor core is designed at least in one of its circular cylindrical smooth outer surface (113) at least substantially adjacent second chamber portion (121) at least virtually completely constantly being formed continuously magnetically conductive.
Description
Technical field
The present invention relates to a kind of motor that comprises stator and rotor.The invention still further relates to a kind of rotor for this motor.
Background technology
By the known a kind of reluctance motor of EP 0 889 574 B1.This motor comprises stator and the rotor with armature winding, described armature winding is arranged on the inner periphery of stator, described rotor is radially arranged inside stator certain interval with interval, wherein, rotor comprises rotor core, it has the interpole region between magnetic pole and magnetic pole, and comprise multiple permanent magnets, they are arranged in rotor like this, the magnetic flux of permanent magnet and the magnetic flux extending along interpole region direction of armature winding are repelled each other, wherein, each magnetic pole is defined between two permanent magnets.
Therefore, this patent documentation relates to a kind of motor, wherein jointly uses by the driving of reluctance force with by the driving that is arranged in the power on the permanent magnet in rotor.At this, utilize the characteristic of the machine of permanent magnet excitation, it has constant moment of torsion and in the larger range of speeds, has higher efficiency.But the efficiency of the machine of permanent magnet excitation declines when with less load running.Because the driving by reluctance force has advantage in this respect, so above-mentioned two kinds of type of drive are combined in a machine.This machine is preferred for the drive system in transport facility, the efficiency of wherein having relatively high expectations, high temperature reliability and in larger velocity interval with variable speed operation.
In order to utilize reluctance force, described machine has the rotor with uneven rotor core, and described rotor core is alternately designed with projection and groove along rotor circumference face.Groove in rotor core produces larger air gap between rotor and stator along these directions, the direction that therefore produces less air gap therefore less magnetic resistance along the magneto resistive ratio of the air gap of these directions along the projection in rotor core is larger.Show in addition along rotor circumference face and change other possibility of magnetic resistance, by so-called magnetic irregularity degree, it is by the non magnetic conducting region of rotor core inside and therefore not surperficial and be only included in it and internally arrange at it.
In patent documentation EP 0 889 574 B1, especially Figure 21 to Figure 24 shows the example of composite type magnetic resistance and permanent-magnet machines.This has been recorded, and in order to occur and to use magneto resistance effect, magnetic resistance is non-uniformly distributed on rotor circumference face essentially.At this, in the time that the magnetic flux along rotor circumference face poor (being that magnetic flux distribution changes) increases, the moment of torsion of engine and the increase of output power.For this reason, need to be larger along the poor of magnetic conductance ability of rotor circumference face.According to quoted patent documentation, the machinery requirement moving by reluctance force has large as far as possible air gap or non magnetic conducting region in rotor core, and they can only be arranged in rotor core with larger gauge.
In patent documentation EP 0 889 574 B1, also described a kind of magnetic resistance type rotary machine with permanent magnet, it is furnished with a permanent magnet device in each interpole region, and wherein, interpole region is parallel to the tangent line orientation on rotor surface.This permanent magnet device respectively with unique permanent magnet can be regarded as identical with this configuration effect, and wherein two permanent magnets are directly arranged abreast with the angle of 180 ° each other.
Described in also having illustrated in its Figure 19 and Figure 20, EP 0 889 574 B1 there is the form of implementation of the magnetic resistance type rotary machine of permanent magnet, between every two permanent magnets, there is an inner air region, wherein, add and optionally between identical permanent magnet, near rotor circumference face, arranging the air section that another is relatively large.Open by the baffle for separating of the magnetic conducting of adjacent permanent magnet in inner air region.
Known a kind of according to the electric rotating machine of permanent magnet and magnetic resistance principle by EP 1 414 131 B1.Fig. 4 and Figure 13 illustrate the rotor with four utmost points, and the described utmost point has interpole region betwixt.Described interpole region is by non magnetic inserts and be arranged in the permanent magnet formation in rotor, described non magnetic inserts has higher magnetic resistance, i.e. higher magnetic resistance, and be furnished with respectively two permanent magnets around described non magnetic inserts, described permanent magnet is directed each other with the angle of 90 °, and described permanent magnet is because its less relative permeability (being almost 1) has higher magnetic resistance equally.In air gap by the magnetic flux that both also produced by permanent magnet by magnetic resistance between rotor and stator, along the larger nonunf ormity of rotor circumference face, improve the power of machine.
Described permanent magnet arrangement and patent documentation EP 0 889 574 B1 and following also by the US7 further setting forth, the arrangement in 804,216B2 is similar.
EP 1 414 131 B1 also show rotor, wherein have inner air region on permanent magnet side adjacent one another are.These air sections are opened by the baffle for separating of magnetic conducting mutually.
At US7, in 804,216B2, describe a kind of according to the electric rotating machine of permanent magnet and magnetic resistance principle.Fig. 1, Fig. 2 and Fig. 3 illustrate the rotor with four utmost points, and the described utmost point has interpole region betwixt.Described interpole region is by non magnetic inserts and be arranged in the permanent magnet formation in rotor, and described non magnetic inserts has higher magnetic resistance, i.e. higher magnetic resistance, and described permanent magnet has higher magnetic resistance equally.In the higher region of magnetic resistance, magnetic flux reduces.Thus, also obtain the uneven distribution of magnetic flux along rotor circumference face at this, and therefore improved the power of machine.
But at US7, in 804,216B2, also show according to a kind of flexible program of the electric rotating machine of permanent magnet and magnetic resistance principle, it has the rotor with permanent magnet, and described permanent magnet is arranged with the angle that is greater than 90 °.These permanent magnets are also arranged in interpole region (opening near the fringe region its outer peripheral face forms by rotor core in this interpole region) and around described opening.
US7,804,216B2 also shows a kind of rotor, wherein equally in the other inner air region that exists of adjacent permanent magnet.Described inner air region does not contact mutually.
Patent documentation DE 10 2,005 047 771 A1 show a kind of rotor arrangement, and its advantageous applications, in brushless DC motor or permanent-magnet synchronous electric motor, and has groove arranged in pairs, and permanent magnet is arranged in groove.Every two grooves between there is magnetic flux part.These magnetic flux parts are equivalent to the position in interpole region in aforementioned patent document with respect to the position of permanent magnet device.Respectively with the groove of magnetic flux part adjacency therein side end be connected by otch.These otch form non magnetic conducting or the area of space of magnetic conducting rarely only, its directly with two permanent magnet adjacency that are arranged in adjacent with it otch.
This patent documentation also shows brushless DC motor or the permanent-magnet synchronous electric motor with rotor, and described rotor comprises 12 radially directed permanent magnets that are evenly distributed on periphery.Described permanent magnet becomes the acute angle of 30 ° at least substantially each other.
In this patent documentation, do not mention and occurring or use reluctance force.
All motors of describing in the prior art all have larger quality and the larger structural volume of underusing.
Summary of the invention
Technical problem to be solved by this invention is, improves the motor of aforementioned type, thus realize reduce machine construction element especially rotor core quality and reduce volume, improve power and the moment of torsion of machine simultaneously.
This technical problem solves by a kind of motor by the present invention, it comprises ringwise stator substantially, be furnished with at least one stator winding along the inner periphery of described stator, substantially be arranged in the rotor that can rotate around rotation in stator, described rotor has the rotor core of ringwise magnetic conducting at least substantially, wherein, described rotor core has at least almost cylindrically symmetrically smooth outer peripheral face, in rotor core, be provided with at least one groove and at least one of described at least one groove, permanent magnet is each other in upcountry arranging and be spaced apart from each other by the first area of space of continuous non magnetic conducting towards the obtuse angle of rotation orientation with summit over the ground, and described rotor core is in addition at least being designed at least almost magnetic conducting completely in adjacent second space region at least to a great extent with its outer peripheral face.
Within the scope of the invention, be designed to annular stator and also can regard the drum shape scale of stator as, wherein, the length dimension of stator and rotor and machine on the whole vertically the direction of rotation (along) observe and do not limited to by the design structure according to motor of the present invention.
According to the present invention, the outer peripheral face of rotor, i.e. its outer circumference surface, is designed to column shaped rotating smooth and in geometry, be rendered as exactly at least to a great extent thus cylindrically symmetrically, and it does not have groove and/or projection at least substantially.
Within the scope of the invention, permanent magnet each other obtuse-angulate paired layout be the mutually orientation of " V " shape of two permanent magnets of every pair of permanent magnet.At this, rotation is pointed at the tip of " V " of " V " shape orientation, and the periphery of rotor core is pointed in the end on the limit of " V ".Obtuse angle is the angle between 90 ° to 180 °.
According to definition, permanent magnet arranged in pairs is by the first area of space each interval of continuous non magnetic conducting, and described a first area of space completely permanent magnet from the paired permanent magnet being arranged in obtuse angle extends to another permanent magnet.Between relevant permanent magnet, form thus the first area of space of continuous non magnetic conducting, each side towards structure summit, obtuse angle of each relevant permanent magnet and this first area of space adjacency.The first area of space of non magnetic conducting is preferably designed for a part for groove.
Because rotor core is at least being designed at least almost magnetic conducting completely in adjacent second space region at least to a great extent with its outer peripheral face, at least near rotor core outer peripheral face except described for or there is the region the groove of permanent magnet arranged in pairs without other non magnetic conducting, namely especially do not there is air section.The magnetic conductive material of rotor core is at least designed at least almost completely solid at this place.
Realize the rotor with composite type magnetic resistance and permanent magnet excitation by the present invention, wherein, produced reluctance force by the reeded design of rotor core tool; Be arranged in permanent magnet wherein and be equally non magnetic conducting.
The present invention is by described Feature Combination, especially the Feature Combination of rotor core, for motor has been realized light make, simultaneously by shown in magnetic resistance and being combined in of driving of permanent magnet in the larger range of speeds, produced higher power density and larger moment of torsion.Especially obtain at this rotor core that volume is very little.
Design according to a kind of preferred development by motor of the present invention, described rotor at least almost all has permanent magnet in each described at least one groove.Particularly preferably be, in each groove, be arranged in pairs two permanent magnets, therefore realize driving moment by the reluctance force that produced by magneto resistance effect with by the power being produced by permanent magnet excitation by the effect between magnetic field of permanent magnet and at least one stator winding with each groove simultaneously.
According to by the another kind of form of implementation of motor of the present invention, with described at least one pair of becomes at least one pair of permanent magnet in the permanent magnet of obtuse angle layout to adjoin mutually the three space zones that is furnished with at least one non magnetic conducting away from a side on its summit, obtuse angle.Therefore, on at least one end, corner (pointing to the end of outer peripheral face) of " V " of " V " of permanent magnet arranged in pairs shape orientation, there is the region of same non magnetic conducting as at least one three space zones at relevant permanent magnet side, magnetic flux by this region from this lateral deflection and avoid thus direct magnetic short circuit.The three space zones of especially described at least one non magnetic conducting is designed to a part for each attached groove equally, therefore towards first and three space zones of associated recesses with can be fabricated to common groove for the area of space that holds permanent magnet.
At this, according to a kind of preferred development design of motor, described at least one groove design is to have and the angular structure of described at least one pair of permanent magnet adaptation being arranged in obtuse angle, and is namely similarly obtuse angle moulding, wherein, the angle between angle and permanent magnet arranged in pairs is identical.Frictional fit ground supports permanent magnets more safely remains in rotor core and derives power, the especially centrifugal force in motor emerged in operation thus.Except the junction of first and three space zones of permanent magnet and non magnetic conducting, described at least one groove at least substantially form fit ground around the permanent magnet being contained in wherein, so that guiding magnetic field line best.
By in the another kind of preferred implementing form of motor of the present invention, at least one of first and/or three space zones of described at least one non magnetic conducting is designed to air section.Because described area of space is only taken out and left a blank by the material of rotor core, fill air, realize simple especially structure and the manufacture with low cost of rotor designed according to this invention.In this design, described at least one first and/or preferably also can be designed to can be for the cooling duct of cooling circulation of air and thus can be simultaneously advantageously in simple mode in three space zones.
By in the another kind of preferred implementing form of motor of the present invention, at least one of first and/or three space zones of described at least one non magnetic conducting is at least in part with the solid-state and/or liquid material filling of non magnetic conducting.This solid-state non magnetic conductive material can be advantageously used in the dimensionally stable that makes rotor core, and can not affect the magnetic properties of rotor core.The non magnetic conducting of described type and preferably also nonconducting liquid can be advantageously used in cooling.In a kind of favourable expansion design of form of implementation of the present invention, first and/or the three space zones lining that are described at least one non magnetic conducting by non magnetic conducting and preferred also nonconducting solid-state material.In this lining inside, liquid material can be set, namely preferably using non magnetic conducting and particularly preferably also nonconducting fluid as cooling agent.
According to by the favourable form of implementation of another kind of motor of the present invention, described permanent magnet each other in described at least one groove, arrange over the ground the summit that forms upcountry towards the value at the obtuse angle of rotation orientation in the angular range of 110 ° to 170 °.At this, the value of described angle is preferably in the angular range of 130 ° to 150 °.The value of related angle is particularly preferably in the angular range of 135 ° to 145 °.Especially the angle that is worth (ideal value is 140 °) in the aforementioned angular range in minimum makes to have best power by motor of the present invention.
In by the favourable design of the another kind of motor of the present invention, described rotor has the gauge radially directed with respect to described rotation, and described gauge and rotor core are with respect to the ratio of the external diameter of rotation little (klein gegen ü ber).According to the term definition in mathematics and the general use of technical field and in conjunction with the present invention, its implication refers to the meaning of " at least approx little at least ten times ".
At this, the rotor core gauge radially directed with respect to rotation is preferably less than rotor core with respect to 15% of the external diameter of rotation.Particularly preferably, the rotor core gauge radially directed with respect to rotation is less than rotor core with respect to 10% of the external diameter of rotation.The rotor core gauge radially directed with respect to rotation is most preferably less than rotor core with respect to 8% of the external diameter of rotation.
In by a kind of favourable expansion design of motor of the present invention, the gauge radially directed with respect to described rotation of described rotor core is 16mm to 20mm.At this, the gauge radially directed with respect to rotation of rotor core is preferably 18mm.This is than the little a lot of rotor core gauge of known configuration mode for the motor that starts described type herein.
By combining according to feature of the present invention, obtain the motor of described type in surprising mode, it can realize higher-wattage in compared with lesser trochanter core gauge and compared with high pulling torque irrealizable so far.At this, the gauge of special selection is only best 16 to 20mm time.
According to the favourable design of another kind of pressing motor of the present invention, described rotor comprises the armature spindle that is at least substantially cydariform hollow-core construction, and described armature spindle is surrounded with rotation at least substantially with one heart by described rotor core.This armature spindle that is designed to hollow shaft is preferably designed for thin wall-type.Rotor core is preferably installed or is fitted on this armature spindle.Form on the whole thus simple structure, stable, weight is less and the rotor structure of shared small volume, and forms design thus and have the motor of this rotor.
According to by the previous designs scheme of motor of the present invention, especially can, at internal rotor, in armature spindle, obtain additional structure space.Therefore according to a kind of preferred development design of the present invention, the described armature spindle that is at least substantially cydariform hollow-core construction is designed for and holds the member that at least one and described motor are coupled, in particular for holding the drive member by the drive unit of described motor operation.
Therefore, the structure space obtaining according to the inside of the rotor of this expansion of the present invention design design advantageously fully for the structural detail of the coefficient member of this motor or the Vidacare corp that moved by motor, obtain compactness, the structure that firm and weight is less for whole drive unit thus.
The drive unit of design preferably can use in motor vehicle like this, especially in electric vehicle structure, particularly in hybrid power bassinet structure.Advantageously, coupling equipment can conserve space and weight be arranged in hollow shaft.Form thus compact, firm but lighter make, this is meaningful and preferred for motor vehicle.
Start described technical problem herein and also solve by a kind of rotor, it is for the aforementioned motor designing according to mode of the present invention and its favourable and preferred design and expansion.
Accompanying drawing explanation
Shown in the drawings and elaborating below embodiments of the invention.In the accompanying drawings:
Fig. 1 illustrate according to example of motor of the present invention with schematic sectional view and
Fig. 2 illustrates according to the partial enlarged drawing of the motor of Fig. 1.
Embodiment
In Fig. 1, use Reference numeral 100 at an embodiment according to motor of the present invention shown in the signal drawing in side sectional elevation along machine rotation 111 directions.Described motor 100 has annular stator 101, is furnished with multiple stator winding 103 along its inner peripheral surface 102 in the groove 104 of design for this reason.By the groove 104 also referred to as winding space, in the material of stator 101, form dentation pole shoe 105 according to known mode own along the inner peripheral surface 102 of stator 101; Be furnished with stator winding 103 around each pole shoe 105.Described stator winding 103 can galvanization, preferably so described electric current, magnetic field that its generation is distributed around rotation 111 rotatably along the inner peripheral surface 102 of stator 101 controlled.
Fluted 116 in rotor core 112 indoor designs, wherein every two permanent magnets 117,118 are each other in being arranged as over the ground obtuse angle 119.At this, rotation 111 is upcountry pointed on 119Yi Qi summit, angle.Two each other permanent magnet 117,118 arranged in pairs arrange spaced reciprocally by the first area of space 120 of continuous non magnetic conducting.
In addition, rotor core 112 is at least being designed at least almost magnetic conducting completely continuously in adjacent second space region 121 at least to a great extent with its outer peripheral face 113.This realizes in the following manner, rotor core 112 in this second space region along column shaped rotating symmetrically smooth outer peripheral face 113 formed by the material of magnetic conducting continuously.
Figure 2 illustrates according to the partial enlarged drawing of the motor of Fig. 1, wherein, the element shown in Figure 1 of having described is still furnished with identical Reference numeral.At this, according to the motor of Fig. 1 100 local two pole spans that comprise rotor 110 shown in figure 2.
In Fig. 2, be furnished with the three space zones 122 of non magnetic conducting in the side that permanent magnet 117,118 arranged in pairs deviates from its summit, obtuse angle in obtuse angle.Three space zones 122 is the same with the first area of space 120 also directly and permanent magnet 117,118 adjacency.
In an illustrated embodiment, first and three space zones be designed to air section in simple mode.These regions preferably can be for guiding cooling air or for other gas of cooled rotor core 112.In the flexible program of this embodiment, these regions also can be by the solid material of non magnetic conducting lining completely or partially, or can using non magnetic conducting and preferably also nonconducting fluid introduce this region as cooling agent.
According to a kind of preferred size design of the motor of illustrated embodiment, adopt following size:
Described permanent magnet 117,118 in the angular range of 110 ° to 170 °, is preferably 130 ° to 150 ° each other in the value of arranging the angle 119 forming over the ground in described at least one groove 116, is particularly preferably 135 ° to 145 °, and ideal situation is 140 °.
Described rotor 112 has the gauge 123 radially directed with respect to described rotation 111, described gauge and rotor core are less with respect to the external diameter (measuring on outer peripheral face 113) of rotation, preferably be less than rotor core 112 external diameter 124 15%, particularly preferably be less than 10%, be most preferably less than 8%.At this, the gauge 123 of rotor core is 16mm to 20mm, is preferably 18mm.For this reason, in Fig. 2, represent the half of external diameter with Reference numeral 125.
The pole-face of permanent magnet 117,118 spacing 126 is each other preferably 4.5mm to 5.5mm, especially 5mm, and pole-face width 127 is preferably 14mm to 17mm, especially 15.5mm.
Between two pairs of permanent magnets 117,118, maintain the spacing 128 more important for the structure of magnetic pole of rotor 110, it is 5.5mm to 7.5mm, especially 6.5mm.
The wall thickness 129 that is designed to the armature spindle 114 of hollow shaft is 5mm or less, is preferably about 3 to 4mm.Between the outer peripheral face 113 of rotor core 112 and the three space zones 122 adjacent with permanent magnet 117 or 118, be provided with the wall thickness 130 less with the ratio of the gauge 123 of rotor core 112; Shown in wall thickness be preferably 1.0mm to 1.8mm, especially 1.4mm.
Preferably can be for the hybrid drive of road vehicle or electric drive according to the motor of previous embodiment.At this, the structure space 115 of armature spindle 114 inside preferably can be for separating of shaft coupling.Other structural detail that is used for the drive train of moving by motor can be arranged on this structure space equally.At this, with the external diameter 124 of the large percentage of the gauge 123 of rotor core 112 by lever arm and possibility that a large amount of permanent magnets 117,118 are installed realized motor compared with high pulling torque and higher-wattage.
In first and the three space zones 120,122 on permanent magnet 117,118 sides (being preferably air groove) both for increasing reluctance torque, also for guiding near magnetic field line permanent magnet 117,118, and therefore equally for increasing the torque being produced by 117,118 effects of this permanent magnet.
List of numerals
100 motors
101 stators
The inner peripheral surface of 102 stators 101
103 stator winding
The groove for stator winding 103 in 104 stators 101
105 pole shoes
110 rotors
111 rotations
112 rotor cores
The outer peripheral face of 113 rotor cores 112
114 armature spindles
The structure space of 115 armature spindle 114 inside
116 grooves
117 permanent magnets
118 permanent magnets
Obtuse angle between 119 permanent magnets 117 and 118
The first area of space between 120 permanent magnets 117 and 118
The 121 second space regions adjacent with outer peripheral face 113
122 with permanent magnet 117 or 118 adjacent three space zones
The gauge of 123 rotor cores 112
The external diameter of 124 rotor cores 112
The half of 125 rotor core 112 external diameters
The pole-face spacing of 126 permanent magnets 117,118
The pole-face width of 127 permanent magnets 117,118
128 two permanent magnets are to 117,118 spacing
The wall thickness of 129 armature spindles 114
Claims (12)
1. a motor (100), comprises
Substantially ringwise stator (101), is furnished with at least one stator winding (103) along the inner periphery (102) of described stator, and
Substantially be arranged in the rotor (110) that can rotate around rotation (111) in stator (101), described rotor has the rotor core (112) of ringwise magnetic conducting at least substantially,
Wherein, described rotor core (112) has at least almost cylindrically symmetrically smooth outer peripheral face (113),
In rotor core (112), be provided with at least one groove (116) and
In at least one of described at least one groove (116), permanent magnet (117,118) each other in upcountry arrange towards the obtuse angle of rotation orientation with summit over the ground (119) and be spaced apart from each other by first area of space (120) of continuous non magnetic conducting and
Described rotor core (112) is in addition at least being designed at least almost magnetic conducting completely in adjacent second space region (121) at least to a great extent with its outer peripheral face (113).
2. by motor claimed in claim 1 (100), it is characterized in that, described rotor (110) at least almost all has permanent magnet (117,118) in each described at least one groove (116).
3. by the motor (100) described in claim 1 or 2, it is characterized in that, with described at least one pair of become obtuse angle arrange permanent magnet (117,118) at least one pair of permanent magnet (117,118) adjoin the three space zones (122) that is furnished with at least one non magnetic conducting away from a side on its summit, obtuse angle.
4. by the described motor (100) of one of claims 1 to 3, it is characterized in that, described at least one groove (116) is designed to have the angular structure adaptive with described at least one pair of permanent magnet being arranged in obtuse angle (117,118).
5. by the motor (100) described in claim 3 or claim 3 and 4, it is characterized in that first and/or the three space zones (120 of described at least one non magnetic conducting; 122) at least one is designed to air section.
6. by the motor (100) described in claim 3 or claim 3 and 4, it is characterized in that first and/or the three space zones (120 of described at least one non magnetic conducting; 122) at least one filled with the solid-state and/or liquid material of non magnetic conducting at least in part.
7. by the one or more of described motors (100) of aforementioned claim, it is characterized in that, described permanent magnet (117,118) each other in described at least one groove (116), arrange over the ground the summit that forms upcountry towards the value at the obtuse angle (119) of rotation orientation in the angular range of 110 ° to 170 °, be preferably 130 ° to 150 °, be particularly preferably 135 ° to 145 °.
8. by the one or more of described motors (100) of aforementioned claim, it is characterized in that, described rotor (112) has the gauge (123) radially directed with respect to described rotation, described gauge and rotor core (112) are little with respect to the ratio of the external diameter (124) of rotation, described gauge (123) be preferably less than rotor core (112) external diameter (124) 15%, particularly preferably be less than rotor core (112) external diameter (124) 10%, most preferably be less than rotor core (112) external diameter (124) 8%.
9. by motor claimed in claim 8 (100), it is characterized in that, the gauge (123) radially directed with respect to described rotation of described rotor core (112) is 16mm to 20mm, is preferably 18mm.
10. by the one or more of described motors (100) of aforementioned claim, it is characterized in that, described rotor (110) comprises the armature spindle (114) that is at least substantially cydariform hollow-core construction, and described armature spindle is surrounded with rotation at least substantially with one heart by described rotor core (112).
11. by the motor (100) described in claim, it is characterized in that, the described armature spindle (114) that is at least substantially cydariform hollow-core construction is designed for and holds the member that at least one and described motor (100) are coupled, in particular for holding the drive member by the drive unit of described motor (100) operation.
12. 1 kinds for by the rotor (110) of the one or more of described motors (100) of aforementioned claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210022152 DE102012022152A1 (en) | 2012-11-10 | 2012-11-10 | Electric machine e.g. brushless direct current (DC) motor used for drive systems in e.g. motor vehicle, has permanent magnet formed in pairs in recess and is mutually spaced apart in continuous magnetically non-conductive space |
| DE102012022152.5 | 2012-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103812248A true CN103812248A (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310548401.6A Pending CN103812248A (en) | 2012-11-10 | 2013-11-07 | Electrical machine and rotor therefor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103812248A (en) |
| DE (1) | DE102012022152A1 (en) |
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| CN107359714A (en) * | 2016-05-04 | 2017-11-17 | 大众汽车有限公司 | Rotor for motor |
| CN107938255A (en) * | 2017-11-07 | 2018-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Washing machine |
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|---|---|---|---|---|
| DE102015213624A1 (en) * | 2015-07-20 | 2017-01-26 | Robert Bosch Gmbh | Permanently energized electric machine with optimized geometry |
| KR102199538B1 (en) * | 2016-08-04 | 2021-01-07 | 콘티넨탈 오토모티브 게엠베하 | Rotors for brushless electric machines and brushless electric machines |
| JP6503016B2 (en) * | 2017-06-21 | 2019-04-17 | ファナック株式会社 | Rotor and rotating electric machine |
| CN107404170B (en) * | 2017-09-11 | 2024-05-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet motor and rotor structure thereof |
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| CN107359714A (en) * | 2016-05-04 | 2017-11-17 | 大众汽车有限公司 | Rotor for motor |
| CN107938255A (en) * | 2017-11-07 | 2018-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Washing machine |
| CN107938255B (en) * | 2017-11-07 | 2023-11-07 | 珠海格力节能环保制冷技术研究中心有限公司 | washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012022152A1 (en) | 2014-05-15 |
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