CN110061602A - Rotor structure and permanent magnet excitation motor - Google Patents
Rotor structure and permanent magnet excitation motor Download PDFInfo
- Publication number
- CN110061602A CN110061602A CN201811597992.5A CN201811597992A CN110061602A CN 110061602 A CN110061602 A CN 110061602A CN 201811597992 A CN201811597992 A CN 201811597992A CN 110061602 A CN110061602 A CN 110061602A
- Authority
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- China
- Prior art keywords
- rotor
- permanent magnet
- tooth
- stator
- yoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention belongs to technical field of motor manufacture, a kind of rotor structure and permanent magnet excitation motor are disclosed.Wherein, the rotor structure includes rotor yoke, circular array is alternately distributed in multiple the first rotor teeth and multiple second rotor tooths on rotor yoke, and the first rotor permanent magnet is equipped between adjacent the first rotor tooth and the second rotor tooth, and the second rotor tooth is equipped with the second rotor permanent magnet.In this way, by the second rotor tooth instead of the dosage of part permanent magnet, reduce the dosage of permanent magnet, improve unit volume lower rotor part tooth and permanent magnet with specific density, and then the utilization rate of permanent magnet is improved, in addition, the first rotor permanent magnet by the second rotor tooth opposite sides can realize poly- magnetic effect, the magnetic loading of motor is substantially increased, so that the output torque of unit magnet volume is highly improved.
Description
Technical field
The invention belongs to technical field of motor manufacture, are to be related to a kind of rotor structure and permanent magnet excitation electricity more specifically
Machine.
Background technique
The problems such as with energy crisis, global warming, becomes increasingly conspicuous, and human society is faced with stern challenge.Production,
The utilization of Transportation electrification and new energy becomes our inevitable choices.Key equipment of the motor as energy converting between mechanical,
The quality of its overall performance directly affects efficiency of energy utilization.With the development of permanent-magnet material, magneto technology is in electricity
Electrical automobile, industry transmission, field of wind power generation are widely used.
Magneto includes stator structure and rotor structure, and existing rotor structure is that annular array is alternately distributed in rotor
Rotor tooth and permanent magnet on iron core, i.e., be equipped with permanent magnet between two adjacent rotor tooths, and this rotor structure was using
Lower, the lesser problem of unit magnet volume output torque that there are permanent magnet utilization rates in journey.
Summary of the invention
The purpose of the present invention is to provide a kind of rotor structures, it is intended to which the rotor structure for solving existing magneto exists forever
Magnet utilization rate is low, the lesser technical problem of unit magnet volume output torque.
To achieve the goals above, the technical solution adopted by the present invention is that: rotor structure, the rotor structure further include being in
Annular array be alternately distributed on the rotor yoke multiple the first rotor teeth and multiple second rotor tooths, adjacent described first turn
It is equipped with the first rotor permanent magnet for magnetizing between sub- tooth and second rotor tooth, the is offered on second rotor tooth
Two rotor slots are equipped with the second rotor permanent magnet in second rotor slot.
Further, along the rotor yoke radial direction: the length of each the first rotor tooth is equal to each described second turn
The sum of the length of sub- tooth and each second rotor permanent magnet.
Further, the rotor yoke, which is equipped with, is packed into each institute for guiding each the first rotor permanent magnet to correspond
State the multiple location structures in the first rotor slot and positioned.
Further, the location structure is the location hole being opened on the rotor yoke, each location hole difference one
One corresponds to each the first rotor permanent magnet close to one end of the rotor yoke.
Further, it is additionally provided on the rotor yoke described in two for guiding the opposite sides of second rotor tooth
Conducting structure of the magnetic line of force far from one side direction of rotor yoke that the first rotor permanent magnet generates.
Further, the conducting structure is the multiple conductance slots being opened on the rotor yoke, each conductance slot point
It Yi Yiduiying not be in the side of each second rotor tooth.
Further, it is additionally provided on each the first rotor tooth and is located at each the first rotor tooth opposite sides for fixed
The first rotor permanent magnet protrusion.
The present invention also provides a kind of permanent magnet excitation motor, including stator structure and it is built in the stator structure
Rotor structure, the rotor structure be rotor structure as described above.
Further, the stator structure includes that stator yoke, circular array are alternately distributed in more in the stator yoke
A stator tooth and multiple armature winding, the stator structure further includes multiple fixed for magnetizing to each armature winding
Sub- permanent magnet, each stator permanent magnet are arranged in a one-to-one correspondence in the side of each armature winding.
Further, the number of pole-pairs of the armature winding is Pw, the number of pole-pairs of the stator permanent magnet is Zs, the armature
The number of phases of winding is m phase, the number of pole-pairs P of armature winding described in m phase, the armature windingwAnd the stator permanent magnet is extremely right
Number is ZsIt should meet:Wherein, LCD (Zs, Pw) it is ZsWith PwGreatest common divisor；K is positive integer.
The beneficial effect of rotor structure provided by the invention is: compared with prior art, rotor structure of the invention leads to
It crosses and multiple the first rotor teeth and multiple second rotor tooths is set on rotor yoke, each the first rotor tooth and the second rotor tooth are in a ring
Array is alternately distributed, and the first rotor permanent magnet is arranged between each the first rotor tooth and each second rotor tooth, and at each second turn
Second rotor permanent magnet is set on sub- tooth, in this way, the second rotor permanent magnet, the second rotor tooth, the second rotor tooth opposite sides
The first rotor permanent magnet combination is integral between two neighboring the first rotor tooth, improve unit volume lower rotor part tooth with
Permanent magnet matches specific density, reduces the dosage of permanent magnet, and then improve the utilization rate of permanent magnet, in addition, passing through second turn
The first rotor permanent magnet of sub- tooth opposite sides can realize poly- magnetic effect, substantially increase the magnetic loading of motor, so that unit magnetic
The output torque of body volume is highly improved.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required practical attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the one of the present embodiment
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of rotor structure schematic diagram that the embodiment of the present invention proposes；
Fig. 2 is another rotor structure schematic diagram that the embodiment of the present invention proposes；
Fig. 3 is the enlarged drawing of A in Fig. 2 of proposition of the embodiment of the present invention；
Fig. 4 is the length ratio of the first rotor tooth that the embodiment of the present invention proposes and the second rotor tooth and the second rotor permanent magnet
Compared with figure；
Fig. 5 is the structural schematic diagram for the permanent magnet excitation motor that the embodiment of the present invention proposes.
Wherein, each appended drawing reference in figure:
1- rotor structure；11- rotor yoke；12- the first rotor tooth；The second rotor tooth of 13-；14- the first rotor permanent magnet；
The second rotor permanent magnet of 15-；16- location structure；17- conducting structure；18- protrusion；
2- stator structure；21- stator yoke；22- armature winding；23- stator slot；24- stator permanent magnet；25- stator tooth.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.
It is only phase each other in addition, it should also be noted that, positional terms such as left and right, upper and lower in the embodiment of the present invention
It is reference to concept or with the normal operating condition of product, and should not be regarded as restrictive below in conjunction with specific
Realization of the invention is described in detail in embodiment.
As shown in Fig. 1~5, the present embodiment proposes a kind of rotor structure 1, including rotor yoke 11, sets on the rotor yoke 11
There are multiple the first rotor teeth 12 and multiple second rotor tooths 13, each the first rotor tooth 12 and each second rotor tooth 13 array annular in shape
It is alternately disposed on rotor yoke 11, the first rotor permanent magnet 14 is equipped between adjacent the first rotor tooth 12 and the second rotor tooth 13,
The second rotor permanent magnet 15 is equipped on the second rotor tooth 13.In the present embodiment, the second rotor permanent magnet 15, the first rotor tooth
12, the first rotor permanent magnet 14 of 13 opposite sides of the second rotor tooth is combined into one and is wholy set in two neighboring the first rotor tooth
Between 12, i.e., the dosage of permanent magnet is reduced, is improved instead of the dosage part of part permanent magnet by the second rotor tooth 13
Unit volume lower rotor part tooth and permanent magnet match specific density, and then improve the utilization rate of permanent magnet, in addition, passing through the second rotor
The first rotor permanent magnet 14 of 13 opposite sides of tooth can realize poly- magnetic effect, substantially increase the magnetic loading of motor, so that unit
The output torque of magnet volume is highly improved.
Preferably, in the present embodiment, there is the first rotor slot between adjacent the first rotor tooth 12 and the second rotor tooth 13
(attached drawing is not made), the first rotor permanent magnet 14 are set in the first rotor slot, offer the second rotor on the second rotor tooth 13
Slot (attached drawing is not made), second rotor permanent magnet 15 are set in the second rotor slot, certainly, in the present embodiment, above-mentioned first
Rotor permanent magnet 14 can also be arranged by other means with the second rotor permanent magnet 15, not limit uniquely herein.
Preferably, in the present embodiment example, the second rotor slot is opened in second one end of rotor tooth 13 far from rotor yoke 11.
Preferably, the first rotor permanent magnet 14 is applied glue by mode for dispensing glue on the first rotor permanent magnet 14
It is then placed into the first rotor slot, the second rotor permanent magnet 15 can also be by mode for dispensing glue, by the second rotor permanent magnet 15
It is installed in the second rotor slot.It, can be quickly and easily by the first rotor permanent magnet 14 and the second rotor permanent magnet by dispensing mode
The correspondence of body 15 is installed in the first rotor slot and the second rotor slot.Certainly, in the present embodiment, above-mentioned the first rotor permanent magnet
14, the second rotor permanent magnet 15 can also be corresponded to by other means and is installed in above-mentioned the first rotor slot and the second rotor slot, this
Place does not limit uniquely.
Preferably, above-mentioned second rotor slot is set as dovetail channel-shaped, in this way, can be preferably solid by the second rotor permanent magnet 15
Due in above-mentioned second rotor slot.Certainly, above-mentioned second rotor slot can also be other shapes, not limit uniquely herein.
Further, it please refers to shown in Fig. 1 and Fig. 4, a kind of specific embodiment party as rotor structure provided by the invention
Formula, above-mentioned each the first rotor tooth 12 are equal to each second rotor tooth 13 and the second rotor forever along the length of 11 radial direction of rotor yoke
The sum of the length of magnet 15.It is arranged in this way, so that rotor structure 1 is more regular, easy to process and subsequent installation.When
So, in the present embodiment, according to the actual situation and specific requirements, the length of above-mentioned the first rotor tooth 12 is also greater than or less than the
The sum of the length of two rotor tooths 13 and the second rotor permanent magnet 15, is not construed as limiting herein.
Further, refering to Figure 1, a kind of specific embodiment as rotor structure provided by the invention, on
It states and is additionally provided with multiple location structures 16 on rotor yoke 11.The bootable the first rotor permanent magnet 14 of each location structure 16 is filled in first
In rotor slot.Preferably, in the present embodiment, above-mentioned each location structure 16 is the location hole being opened on rotor yoke 11, each fixed
Position hole is corresponded respectively in above-mentioned each the first rotor permanent magnet 14 close to one end of rotor yoke 11.In this way, passing through setting positioning
Hole can be used for guiding and positioning above-mentioned the first rotor permanent magnet 14 and be filled in the first rotor slot, by the way that location hole is set to the
One rotor permanent magnet 14 avoids one end magnetic force of the first rotor permanent magnet 14 close to rotor yoke 11 close to one end of rotor yoke 11
Line be closed and form " short circuit " circuit, improve the effect of poly- magnetic so that the output torque of unit magnet volume obtain it is biggish
It is promoted.Certainly, above-mentioned location structure 16 may be alternatively provided as limited block or other structures, not limit uniquely herein.
Preferably, above-mentioned location hole setting triangular in shape, certainly, in this embodiment, above-mentioned location hole can also rounded, water chestnut
The setting of the shapes such as shape, rectangle, does not limit uniquely herein.
It further, should refering to Figure 1, a kind of specific embodiment as rotor structure provided by the invention
Conducting structure 17 is additionally provided on rotor yoke 11, in this way, by setting conducting structure 17, to force each second rotor tooth 13 adjacent
The magnetic line of force that the opposite the first rotor permanent magnet 14 to magnetize in two sides generates passes through second turn of the second rotor tooth 13 and radial magnetizing
Sub- permanent magnet 15 is directed to far from 11 side of rotor yoke, improves poly- magnetic effect.Preferably, in the present embodiment, above-mentioned conducting
Structure 17 is the conductance slot being opened on rotor yoke 11, and each conductance slot is corresponded respectively in the second rotor tooth 13 close to rotor yoke
11 side.In this way, it is short through rotor yoke 11 to generate the magnetic line of force so as to avoid the first rotor permanent magnet 14 by opening up conductance slot
Road enhances poly- magnetic effect.
Preferably, the U-shaped setting of above-mentioned conductance slot, further, above-mentioned second rotor permanent magnet 15, the second rotor tooth 13
The first rotor permanent magnet 14 of opposite sides combines U-shaped setting, and the second rotor magnet 15 radially magnetizes, the second rotor tooth
The first rotor permanent magnet 14 of 13 opposite sides is opposite to magnetize, in this way, conducting structure 17 is equipped in rotor yoke, to prevent first
The magnetic field of rotor permanent magnet 14 forms " short circuit " circuit by rotor yoke 11, forces first turn of the adjacent two sides of the second rotor tooth 13
It is moved towards far from 11 side of rotor yoke, thus by the second rotor tooth 13 and the second rotor permanent magnet 15 in sub- 14 magnetic field of permanent magnet
Just " poly- magnetic effect " is formd.Certainly, in the present embodiment, according to the actual situation and specific requirements, above-mentioned conductance slot can also be in V
Type setting or other shapes setting etc., above-mentioned the first rotor permanent magnet 14, the second rotor permanent magnet 15 can also be in other shapes
Shape setting, does not limit uniquely herein.
Further, it please refers to shown in Fig. 2 and Fig. 3, a kind of specific embodiment party as rotor structure provided by the invention
Formula, above-mentioned each the first rotor tooth 12 are additionally provided with protrusion 18, specifically, are offered on the first rotor slot for protrusion 18 and with first
The opening that rotor permanent magnet 14 contacts (attached drawing is not made).In this way, by setting protrusion, so as to each the first rotor of fixation
The first rotor permanent magnet 14 of 12 opposite sides of tooth.Specifically, in the present embodiment, above-mentioned each raised 18 it is respectively arranged on above-mentioned
One opposite end of the rotor tooth 12 far from 11 side of rotor yoke, so as to be supported respectively positioned at 12 opposite sides of the first rotor tooth
The first rotor permanent magnet 14, so that the first rotor permanent magnet 14 is preferably fixed in the first rotor slot.Certainly, above-mentioned raised 18
It may also be arranged on any other place on the first rotor tooth 12, do not limit uniquely herein.
Referring to Fig. 5, additionally providing a kind of permanent magnet excitation motor in the present invention, which includes stator structure
2, above-mentioned rotor structure 1 is built-in in the stator structure 2, which is rotor structure 1 described above, is not made herein
It repeats.In this way, being built in stator structure 2 by rotor structure 1, be based on " bidirectional magnetic field mudulation effect ", i.e., stator field with
Rotor field is modulated into magnetic field harmonics abundant, and stable energy conversion is realized by the interaction of magnetic field harmonics.
Further, referring to Fig. 5, a kind of specific embodiment as rotor structure provided by the invention, above-mentioned fixed
Minor structure 2 includes stator yoke 21, which is equipped with stator tooth 25 and armature winding 22, each stator tooth 25 and each armature around
22 circular arrays of group are alternately distributed in stator yoke 21, in addition, said stator structure 2 further includes multiple stator permanent magnets 24,
Each stator permanent magnet 24 is arranged in a one-to-one correspondence in the side of armature winding 22.In this way, convenient for passing through stator permanent magnet 24 to armature
Winding 22 magnetizes.Preferably, there is stator slot 23, which can be placed between two adjacent stator tooths 25
In the stator slot 23, certainly, above-mentioned armature winding 22 can also be set to by other means between two stator tooths 25, herein not
Make unique limit.
In the present invention, said stator magnetic field is modulated into magnetic field harmonics abundant, above-mentioned rotor magnetic by the first rotor tooth 12
Field is modulated into magnetic field harmonics abundant by stator tooth 25, these numbers of pole-pairs are identical and the identical harmonic interactions of revolving speed are realized surely
Fixed energy conversion.
In the present invention, for ease of description, the number of pole-pairs of above-mentioned armature winding 22 is set as Pw, said stator is extremely right
Number, number of stator slots, the number of pole-pairs of stator permanent magnet and number of stator teeth are set as Zs, the above-mentioned the first rotor number of teeth, the second rotor
The rotor magnet number of pole-pairs that the number of teeth and two the first rotor permanent magnets 14 are combined into single second rotor permanent magnet 15 is all provided with
For Zr, then above-mentioned 22 number of pole-pairs P of armature windingw, 24 number of pole-pairs Z of stator permanent magnets, rotor magnet number of pole-pairs ZrThe relationship of satisfaction
For Pw=| Zs-Zr|, specific in the present embodiment, above-mentioned Zr=10, Zs=12, then Pw=2, in this way, the rotor permanent magnet of 10 pairs of pole
Magnetic field is modulated into the harmonic field of 2 pairs of pole by 12 stator tooths, and at the same time, the stator permanent magnet field of 12 pairs of pole is by 10 first turn
Sub- tooth is modulated into the harmonic field of 2 pairs of pole, at this point, when armature winding 22 is passed through the three-phase symmetrical alternating current of certain frequency, electricity
Modulated 2 pairs of pole harmonic wave magnetic is distinguished with stator tooth 25 and the first rotor tooth 12 simultaneously in 2 pairs of Polar armature magnetic fields that pivot electric current generates
Stable torque output is realized in field interactions, completes the conversion of energy.For example, when the motor is motor, injected frequency
For 20HZThree-phase symmetrical electric current when, armature supply generate rotating excitation field revolving speed be 60*20/2=600r/min, rotor
It will be rotated with the speed of 120r/min, when the motor is generator, when external force drives rotor with the speed rotation of 120r/min,
It is 20H that armature winding, which will issue frequency,ZAlternating current.
Preferably, when armature winding 22 injects symmetrical alternating current electricity, the rotating excitation field revolving speed that armature winding 22 generates is denoted as
Ωw, the revolving speed of rotor structure 1 is denoted as ΩrSize meet size relation beSo as to pass through rotor structure 1
Revolving speed show that armature winding 22 generates the revolving speed of rotating excitation field, it is of course also possible to generate rotating excitation field by armature winding 22
Revolving speed obtains the revolving speed of rotor structure 1.
Preferably, the number of phases of above-mentioned armature winding 22 is m phase, then armature winding 22, armature winding 22 described in m phase is extremely right
Number PwAnd the number of pole-pairs of stator permanent magnet 25 is ZsIt should meet:Wherein, LCD (Zs, Pw) it is ZsWith Pw's
Greatest common divisor；K is positive integer.In this way, when meeting above-mentioned relation formula, for the subsequent energy conversion between rotor structure 1
It provides and guarantees.
Preferably, said stator yoke 21, stator tooth 25 are folded along its respective axial direction by the preferable silicon steel sheet of magnetic property
It presses, above-mentioned rotor yoke 11, the first rotor tooth 12, the second rotor tooth 13 are each along it also by the preferable silicon steel sheet of magnetic property
From axial direction be overrided to form.
In the present invention, above-mentioned permanent magnet excitation motor utilizes stator structure 2 except through " bidirectional magnetic field mudulation effect "
The magnetic field harmonics work generated with rotor structure 1 is outer, by setting rotor structure 1 described above for rotor structure 1, so that
The rotor structure 1 generates poly- magnetic effect, improves the magnetic loading of motor by a relatively large margin, the torque density of motor is improved, with this
Meanwhile the output torque of unit magnet volume is significantly improved, the dosage of permanent magnet is reduced, the manufacture of motor is thereby reduced
Cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. rotor structure, including rotor yoke, which is characterized in that the rotor structure further includes that circular array is alternately distributed in institute
State the multiple the first rotor teeth and multiple second rotor tooths on rotor yoke, the adjacent the first rotor tooth and second rotor tooth
Between be equipped with the first rotor permanent magnet for magnetizing, offer the second rotor slot on second rotor tooth, described second turn
The second rotor permanent magnet is equipped in pilot trench.
2. rotor structure as described in claim 1, which is characterized in that along the rotor yoke radial direction: each described first turn
The length of sub- tooth is equal to the sum of the length of each second rotor tooth and each second rotor permanent magnet.
3. rotor structure as claimed in claim 2, which is characterized in that the rotor yoke is equipped with for guiding each described first
Rotor permanent magnet corresponds the multiple location structures for being fitted into each the first rotor slot and positioning.
4. rotor structure as claimed in claim 3, which is characterized in that the location structure is to be opened on the rotor yoke
Location hole, each location hole are corresponded respectively in each the first rotor permanent magnet close to one end of the rotor yoke.
5. rotor structure as claimed in claim 4, which is characterized in that be additionally provided on the rotor yoke for guiding described second
The magnetic line of force that the first rotor permanent magnet of two of the opposite sides of rotor tooth generates is far from one side direction of rotor yoke
Conducting structure.
6. rotor structure as claimed in claim 5, which is characterized in that the conducting structure is to be opened on the rotor yoke
Conductance slot, each conductance slot are corresponded respectively in the side of each second rotor tooth.
7. such as rotor structure as claimed in any one of claims 1 to 6, which is characterized in that be additionally provided on each the first rotor tooth
Protrusion for the fixed the first rotor permanent magnet for being located at each the first rotor tooth opposite sides.
8. permanent magnet excitation motor exists including stator structure and the rotor structure being built in the stator structure, feature
In the rotor structure is rotor structure as described in any one of claim 1 to 7.
9. permanent magnet excitation motor as claimed in claim 8, which is characterized in that the stator structure includes stator yoke, in a ring
Array be alternately distributed in the stator yoke multiple stator tooths and multiple armature winding, the stator structure further include for pair
Multiple stator permanent magnets that each armature winding magnetizes, each stator permanent magnet are arranged in a one-to-one correspondence in each electricity
The side of pivot winding.
10. permanent magnet excitation motor as claimed in claim 8, which is characterized in that the number of pole-pairs of the armature winding is Pw, described
The number of pole-pairs of stator permanent magnet is Zs, the number of phases of the armature winding is m phase, armature winding described in m phase, the armature winding
Number of pole-pairs PwAnd the number of pole-pairs of the stator permanent magnet is ZsIt should meet:Wherein, LCD (Zs, Pw) be
ZsWith PwGreatest common divisor；K is positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597992.5A CN110061602B (en) | 2018-12-26 | 2018-12-26 | Rotor structure and permanent magnet excitation motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597992.5A CN110061602B (en) | 2018-12-26 | 2018-12-26 | Rotor structure and permanent magnet excitation motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110061602A true CN110061602A (en) | 2019-07-26 |
| CN110061602B CN110061602B (en) | 2020-07-24 |
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|---|---|---|---|
| CN201811597992.5A Active CN110061602B (en) | 2018-12-26 | 2018-12-26 | Rotor structure and permanent magnet excitation motor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019597A1 (en) * | 2006-08-31 | 2010-01-28 | Abb Oy | Rotor for a permanent-magnet electrical machine |
| CN202524195U (en) * | 2012-01-09 | 2012-11-07 | 美的威灵电机技术（上海）有限公司 | Same-polarity type rotor of rotary motor |
| CN102801237A (en) * | 2011-05-26 | 2012-11-28 | 三星电子株式会社 | Rotor core, module used for rotor core, rotor and motor |
| CN207977873U (en) * | 2018-01-11 | 2018-10-16 | 南方科技大学 | A kind of magneto |
-
2018
- 2018-12-26 CN CN201811597992.5A patent/CN110061602B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100019597A1 (en) * | 2006-08-31 | 2010-01-28 | Abb Oy | Rotor for a permanent-magnet electrical machine |
| CN102801237A (en) * | 2011-05-26 | 2012-11-28 | 三星电子株式会社 | Rotor core, module used for rotor core, rotor and motor |
| CN202524195U (en) * | 2012-01-09 | 2012-11-07 | 美的威灵电机技术（上海）有限公司 | Same-polarity type rotor of rotary motor |
| CN207977873U (en) * | 2018-01-11 | 2018-10-16 | 南方科技大学 | A kind of magneto |
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| Publication number | Publication date |
|---|---|
| CN110061602B (en) | 2020-07-24 |
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