CN106849401B - A kind of flywheel energy storage motor for electric vehicle - Google Patents
A kind of flywheel energy storage motor for electric vehicle Download PDFInfo
- Publication number
- CN106849401B CN106849401B CN201710079777.5A CN201710079777A CN106849401B CN 106849401 B CN106849401 B CN 106849401B CN 201710079777 A CN201710079777 A CN 201710079777A CN 106849401 B CN106849401 B CN 106849401B
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- tooth
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- permanent magnet
- rotor
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention discloses a kind of flywheel energy storage motor for electric vehicle, and six stator tooths are distributed uniformly and circumferentially on stator case inner surface, and six stator tooths are coaxially cased with rotor；By stator tooth yoke and a radially projecting center tooth, identical end tooth forms each stator tooth with two, one piece of permanent magnet is respectively embedded on the stator tooth yoke of the middle of the two adjacent teeth of the center tooth and end tooth of each stator tooth, two pieces of equal cutting orientation magnetizings of permanent magnet on one stator tooth, magnetizing direction is opposite and is directed to center tooth, it is wound with winding in each center tooth, be separated by 180 ° of two groups of windings while being passed through electric current or turn-off current；14 rotor tooths are distributed uniformly and circumferentially on rotor, the magnetic field that permanent magnet generates and the magnetic field that winding generates are superimposed, primary magnetic field is by being embedded in permanent magnet generation on the stator teeth, as long as being passed through lesser electric current in winding generates biggish torque, the adjustable suspending power of electric current in winding is adjusted.
Description
Technical field
The present invention relates to flying wheel battery and technical field of motors, are particularly used for the bearing-free flywheel energy storage of electric car
Motor.
Background technique
The chemical cell service life used in electric car is lower, and old and useless battery has pollution to environment, and flying wheel battery is in the longevity
It orders and to all with good performance in the influence of environment.The mechanical bearing of conventional flywheel inside battery is in flywheel high speed rotation
There are problems that abrasion and temperature rise, and the efficiency of flying wheel battery can be reduced, therefore traditional machine is substituted using bearing-free motor
Tool bearing electric machine.Bearing-free motor is in conjunction with magnetic bearing and electric motors function in a kind of New-type electric machine of one, traditional bearing-free electricity
There is double winding inside machine, generates torque and suspending power respectively, it can by the size and phase that adjust the electric current in double winding
To control the size of torque and the size of suspending power, therefore bearing-free motor is not necessarily to bearing support in normal work, very suitable
It shares in fields such as high speed situations such as flywheel energy storage, aerospace.
There are torque winding and this double winding of suspending windings inside traditional bearing-free motor, double winding generates number of pole-pairs phase
Poor one magnetic field is respectively intended to generate torque and suspending power.There are the following problems for the bearing-free motor of this structure:Nothing
There is double winding inside bearing electric machine, and double winding is placed in same group of slot, causes electric machine structure complicated.Double winding
The magnetic field coupling of generation is complicated, and double winding electric current will meet certain relationship, be unfavorable for controlling.
Summary of the invention
The contents of the present invention are to propose a kind of structure letter to solve the problems, such as that existing flying wheel battery bearing-free motor exists
The flywheel energy storage motor for electric vehicle of single only a set of winding does not have magnetic field coupling phenomenon, structure and all simple, the energy of control
Instead of traditional bearing-free motor.
The technical solution adopted by the present invention is that: most external of the present invention is cylindric stator case, stator case inner surface
On be distributed uniformly and circumferentially six stator tooths, six stator tooths are coaxially cased with rotor；Each stator tooth is by stator tooth yoke
And identical end tooth forms a radially projecting center tooth with two, in the center tooth of each stator tooth and the phase of end tooth
One piece of permanent magnet is respectively embedded on the stator tooth yoke of the middle of two adjacent teeth, two pieces of permanent magnets on a stator tooth tangentially fill
Magnetic, magnetizing direction is opposite and is directed to center tooth, is wound with winding in each center tooth, it is same to be separated by 180 ° of two groups of windings
When be passed through electric current or turn-off current；14 rotor tooths, the outer surface and centre of rotor tooth are distributed uniformly and circumferentially on rotor
There are radial air gaps between the inner surface of tooth and two end teeth.
Further, arc angle shared by each stator tooth be 40 °, the center line of the center tooth of the same stator tooth with
Angle is 20 ° between the relatively far lateral side of two end teeth.
The beneficial effects of the present invention are:
1, the stator in the present invention has permanent magnet, and the magnetic field that permanent magnet generates and the magnetic field that winding generates are superimposed, main
Want magnetic field to be generated by being embedded in permanent magnet on the stator teeth, as long as therefore be passed through in winding lesser electric current generate it is larger
Torque, adjust winding in the adjustable suspending power of electric current.
2, six groups of coils are uniformly distributed inside motor, the coil on each tooth can be passed through different size of electric current, but phase
Being powered every 180 ° of two groups of coils, the time started is identical as conduction time is terminated, and suspending power control is got up relatively simple.
3, the present invention has many advantages, such as that small in size, structure is simple, control is easy, and the application is applied to can in flying wheel battery
The control difficulty of flying wheel battery motor internal is effectively reduced, flying wheel battery practicability is further enhanced.
Detailed description of the invention
Fig. 1 is a kind of main structure figure of flywheel energy storage motor for electric vehicle of the present invention；
Fig. 2 is the schematic enlarged-scale view of single stator tooth in Fig. 1；
Fig. 3 is the working principle of the invention figure shown in Fig. 1；
Fig. 4 is when two groups of windings in Fig. 1 are powered, other four without energization winding institute, permanent magnet is produced on the stator teeth
The distribution map of magnetisation pulling force；
Figure label and title are as follows: 1. stator cases；2. stator tooth；3. permanent magnet；4. winding；5. rotor；6. permanent magnet
The magnetic field of generation；7. the magnetic field that winding generates；8. the magnetic pull that permanent magnet generates；9. stator tooth yoke；10. rotor tooth.
Specific embodiment
Referring to Fig. 1, most external of the present invention is stator case 1, and stator case 1 is the cylindrical shape of boring, stator case 1
Material be non-magnetic aluminium.It is distributed uniformly and circumferentially the stator tooth 2 of six E shapes on 1 inner surface of stator case, six
Stator tooth 2 is coaxially cased with rotor 5, rotor 5 and the central axis having the same of stator case 1, between rotor 5 and stator tooth 2 there are
Radial air gap.
Referring to fig. 2, each stator tooth 2 is by stator tooth yoke 9 and radially towards three tooth groups of central axis direction protrusion
At these three teeth are a center tooth K2 and two identical end tooth K1, K3 respectively, and end tooth K1, K3 are at the both ends of E shape structure.
It is located at the both ends of stator tooth yoke 9, center tooth K2 is located at the middle of two end teeth K1, K3.Center tooth K2 and two end tooth K1,
The internal diameter of K3 is equal.
Arc angle shared by each stator tooth 2 is 40 °, i.e., the span of stator tooth yoke 9 is 40 °.Each stator tooth yoke 9
ThicknesswFor 6 ~ 10mm.In center tooth K2 and two end teeth K1, K3, the center line of the center tooth of the same stator tooth 2 and two
Angle between the relatively far lateral side of end toothαIt is 20 °, wherein the facewidth of center tooth K2w 1For 8 ~ 12mm, the width of two end teeth K1, K3
It spends equal, isw 2,w 2Forw 1Half.The radial height phase of each tooth of center tooth K2 and two end teeth K1, K3
Deng heighthFor 14 ~ 10mm.The material of stator tooth 2 is that the silicon steel plate stacking of magnetic conduction forms, in each stator tooth 2, in
One piece of permanent magnet is respectively embedded on the stator tooth yoke 9 of the middle of two teeth of the arbitrary neighborhood of raker tooth K2 and two end teeth K1, K3
3, therefore, two pieces of permanent magnets 3 are embedded on a stator tooth 2, this equal cutting orientation magnetizing of two pieces of permanent magnets 3, magnetizing direction is on the contrary, and
It is directed toward center tooth K2.The tangential width of every piece of permanent magnet 3w 3It is 1.5 ~ 2.5mm, the radial height of permanent magnet 3 is equal to stator tooth
The radial thickness of yoke 9w, the internal-and external diameter of the internal-and external diameter and stator tooth yoke 9 of every piece of permanent magnet 3 is equal to each other.
Winding 4 is wound on the center tooth K2 of each stator tooth 2, the electric current of the winding 4 on each center tooth K2 is big
It is small individually to adjust, but two groups of windings 4 for being separated by 180 ° will be passed through electric current or turn-off current simultaneously.
The material of rotor 5 is the silicon steel sheet of magnetic conduction, is formed by silicon steel plate stacking.It is distributed uniformly and circumferentially on rotor 5
14 rotor tooths 10, the radial height of each rotor tooth 10 are 6 ~ 10mm, in the facewidth and stator tooth 2 of each rotor tooth 10 in
Raker tooth K2The facewidth it is equal, be equal tow 1.The outer surface of rotor tooth 10 and center tooth K2, two end teeth K1, K3 inner surface between be
There are radial air gap.
Referring to Fig. 3, the loop A 1, the position A2 in winding 4 are corresponding, face each other, and when energization, permanent magnet 4 generates magnetic field
6, winding 4 generates magnetic field 7.The magnetic field path that two pieces of permanent magnets 4 on the same stator tooth 2 generate is followed successively by first permanent magnet
4, center tooth K2, rotor tooth 10, end tooth K1, K3, second piece of permanent magnet 4, the magnetic that the magnetic circuit and permanent magnet 4 that winding 4 generates generate
Road is identical.Wherein permanent magnet 4 generates primary magnetic field, and loop A 1, A2 are passed through electric current simultaneously, when the electric current phase that loop A 1, A2 are passed through
Whens equal, suspending power is not generated at this time；When the electric current that loop A 1 is passed through is greater than the electric current in loop A 2, upward hang is generated at this time
Buoyancy；When the electric current that loop A 1 is passed through is less than the electric current in loop A 2, downward suspending power is generated.Similarly, control can be passed through
The size of current in coil B1, the B2 and aspectant coil C1, C2 to face each other is made to adjust edgexSuspension on axis
Power.
Referring to fig. 4, when loop A 1, A2 are powered, when other four sets of coils B1, B2, C1, C2 are not powered, coil B1, C1
The magnetic pull that permanent magnet 4 on the stator tooth 2 at place generates is that y-axis direction is cancelled out each other along the vertical direction, and the two generates one
Horizontally a left side is the resultant force in negative direction of the x-axis, the magnetic pull edge that the permanent magnet 4 on the stator tooth 2 where coil B2, C2 generates
Y-axis direction is cancelled out each other, the resultant force in the two generation one along the x-axis direction, therefore total resultant force is zero.
According to the above, the present invention can be realized.To those skilled in the art without departing substantially from spirit of the invention
Other changes and modifications with making in the case where protection scope, are included within the scope of the present invention.
Claims (6)
1. a kind of flywheel energy storage motor for electric vehicle, most external is cylindric stator case (1), it is characterized in that: stator case
Six stator tooths (2) are distributed uniformly and circumferentially on body (1) inner surface, six stator tooths (2) are coaxially cased with rotor (5)；Often
All by stator tooth yoke (9) and a radially projecting center tooth, identical end tooth forms a stator tooth (2) with two, every
One piece of permanent magnet is respectively embedded on the stator tooth yoke (9) of the middle of the two adjacent teeth of the center tooth and end tooth of a stator tooth (2)
(3), two pieces of equal cutting orientation magnetizings of permanent magnet (3) on a stator tooth (2), magnetizing direction is opposite and is directed to center tooth, every
It is all wound with winding (4) in one center tooth, be separated by 180 ° of two groups of windings (4) while being passed through electric current or turn-off current；Rotor (5)
On be distributed uniformly and circumferentially the interior of 14 rotor tooths (10), the outer surface of rotor tooth (10) and center tooth and two end teeth
There are radial air gaps between surface.
2. a kind of flywheel energy storage motor for electric vehicle according to claim 1, it is characterized in that: each stator tooth (2) is shared
Arc angle be 40 °, the center line of the center tooth of the same stator tooth (2) and two end teeth it is equal compared with angle between far lateral side
It is 20 °.
3. a kind of flywheel energy storage motor for electric vehicle according to claim 2, it is characterized in that: the internal diameter of permanent magnet (3) with
The internal diameter of stator tooth yoke (9) is equal, and the outer diameter of permanent magnet (3) is equal with the outer diameter of stator tooth yoke (9).
4. a kind of flywheel energy storage motor for electric vehicle according to claim 2, it is characterized in that: center tooth and two end teeth
Internal diameter is equal, and the width of two end teeth is the half of the facewidth of center tooth, the facewidth and center tooth of each rotor tooth (10)
The facewidth it is equal.
5. a kind of flywheel energy storage motor for electric vehicle according to claim 3, it is characterized in that: every piece permanent magnet (3) is cut
It is 1.5 ~ 2.5mm to width, the radial thickness of stator tooth yoke (9) is 6 ~ 10mm.
6. a kind of flywheel energy storage motor for electric vehicle according to claim 4, it is characterized in that: the facewidth of center tooth be 8 ~
The radial height of 12mm, center tooth and two end teeth is 14 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079777.5A CN106849401B (en) | 2017-02-15 | 2017-02-15 | A kind of flywheel energy storage motor for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079777.5A CN106849401B (en) | 2017-02-15 | 2017-02-15 | A kind of flywheel energy storage motor for electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106849401A CN106849401A (en) | 2017-06-13 |
| CN106849401B true CN106849401B (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079777.5A Active CN106849401B (en) | 2017-02-15 | 2017-02-15 | A kind of flywheel energy storage motor for electric vehicle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102069579B1 (en) * | 2018-02-12 | 2020-01-23 | 엘지전자 주식회사 | Motor drive apparatus for reducing weight load of rotation axis |
| CN109149798B (en) * | 2018-09-20 | 2020-12-15 | 山东理工大学 | Permanent magnet synchronous motor of wound stator core of electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5714548B2 (en) * | 2011-12-22 | 2015-05-07 | ヤマハ発動機株式会社 | Rotating electrical machine |
| CN102570647B (en) * | 2012-02-13 | 2013-10-30 | 中国矿业大学 | Hybrid excitation flux reversal motor |
| CN103066719B (en) * | 2012-12-14 | 2016-01-20 | 江苏大学 | A kind of magneticfocusing stator permanent magnetic type vernier motor |
| CN105827028B (en) * | 2016-05-06 | 2018-02-27 | 江苏大学 | A kind of electric vehicle flywheel battery five degree of freedom axial magnetic flux bearing-free motor |
| CN106100272B (en) * | 2016-06-20 | 2018-06-01 | 江苏大学 | A kind of double-salient-pole magnetic flux controllable motor of few rare earth tooth yoke complementation |
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| CN106849401A (en) | 2017-06-13 |
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