CN110336398A - A kind of energy-efficient rare earth permanent-magnetic generator - Google Patents
A kind of energy-efficient rare earth permanent-magnetic generator Download PDFInfo
- Publication number
- CN110336398A CN110336398A CN201910740855.0A CN201910740855A CN110336398A CN 110336398 A CN110336398 A CN 110336398A CN 201910740855 A CN201910740855 A CN 201910740855A CN 110336398 A CN110336398 A CN 110336398A
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- CN
- China
- Prior art keywords
- magnetic
- hole
- magnetic shoe
- tangential
- radial
- 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.)
- Pending
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 29
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 29
- 230000004907 flux Effects 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- 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
Abstract
The invention discloses a kind of energy-efficient rare earth permanent-magnetic generators, including stator and the rotor being arranged in stator, rotor includes central axis, magnetic yoke, magnetic shoe and two end plates, magnetic yoke is arranged on center shaft, two end plates are respectively placed in magnetic yoke both ends, and magnetic shoe includes radial magnetic shoe and tangential magnetic shoe, and radial magnetic shoe and tangential magnetic shoe are arranged in magnetic yoke, and be arranged along magnetic yoke circumferencial direction interval, air gap is 1.5mm between stator and rotor；Rare earth permanent-magnetic generator of the invention, in the certain situation of rotor volume, placement rare-earth permanent magnet as far as possible all provides higher air gap flux density, and generator speed improves, and realizes the breakthrough of generator maximum power.
Description
Technical field
The invention belongs to electrical generator fields, more specifically to a kind of energy-efficient rare earth permanent-magnetic generator.
Background technique
It is known that traditional electric excitation generator includes rotor, stator etc., magnet exciting coil, excitation are wound in rotor rim
Coil is connected by electric brush slip ring with AVR (automatic voltage regulator), and AVR, which passes to excitation source generation DC current, makes rotor coil
Magnetic field is generated, when rotated, the armature coil of cutting stator generates induced potential in magnetic field.
Traditional electric excitation generator, volume is big, and weight is big, there is slip-ring brush, and low efficiency generates electromagnetic interference.When negative
When carrying variation, the adjusting of voltage will carry out pressure regulation by AVR, so failure is more, rotor electrical excitation return loss ratio accounts for motor
The 55%-65% being all lost, therefore the energy efficiency of generator is difficult to improve, and the type generator amature copper consumption
The 55%-65% of motor whole copper consumption is accounted for, therefore its cost is also higher, copper resource consumption is also big.In addition, both the above generator
Energy efficiency is only 62%-88%, and full electric excitation generator group has been difficult to improve its energy efficiency, it is difficult to reduce its fuel oil and disappear
Consumption, it is more difficult to reduce its CO2 discharge.
Summary of the invention
The purpose of the present invention is to provide a kind of energy-efficient rare earth permanent-magnetic generators, in the certain situation of rotor volume
Under, placement rare-earth permanent magnet as far as possible all provides higher air gap flux density, and generator speed improves, and realizes generator most
Powerful breakthrough.
A kind of energy-efficient rare earth permanent-magnetic generator of technical solution of the present invention, including stator and turn being arranged in stator
Son, the rotor include central axis, magnetic yoke, magnetic shoe and two end plates, and the magnetic yoke is arranged on center shaft, and two end plates are respectively placed in
Magnetic yoke both ends, the magnetic shoe include radial magnetic shoe and tangential magnetic shoe, and the radial direction magnetic shoe and tangential magnetic shoe are arranged in magnetic yoke, and
It is arranged along magnetic yoke circumferencial direction interval, air gap is 1.5m between the stator and rotor.
Preferably, the magnetic yoke is formed by stacking by several magnet yoke blanking sheets.
Preferably, the magnet yoke blanking sheet includes axis hole, radial hole, tangential hole, location hole and mounting hole, the shaft hole diameter
It is adapted with central axis, and is provided with keyway on axis hole, the radial hole and tangential hole are respectively used to fixed radial magnetic shoe and cut
To magnetic shoe, shape is adapted with radial magnetic shoe and tangential magnetic shoe cross-sectional shape respectively, and the location hole and mounting hole are not
Less than two.
Preferably, the location hole is arranged on the outside of axis hole, and the mounting hole is arranged on the outside of radial hole, all location holes
With mounting hole respectively with axis hole center symmetric setting, the two end plates are fixedly connected by mounting hole with magnetic yoke.
Preferably, the radial hole and tangential hole are arranged uniformly at intervals.
Preferably, spacing distance is 2-5mm between the radial hole and tangential hole.
Preferably, the radial magnetic shoe width is twice of tangential magnetic shoe width, and the tangential magnetic shoe length is radial magnetic
Twice of watt length.
The beneficial effect of technical solution of the present invention is:
The energy-efficient rare earth permanent-magnetic generator of one kind of technical solution of the present invention, magnetic shoe include radial magnetic shoe and tangential magnetic
Watt, radial magnetic shoe and tangential magnetic shoe are arranged in magnetic yoke, and are arranged along magnetic yoke circumferencial direction interval, and the design of this structure can
Rare-earth permanent magnet as much as possible can be placed in the case where rotor volume is certain, higher air gap flux density is improved, or
Can be minimized in the case where air gap flux density is certain rotor volume and reduce rare-earth permanent magnet quantity, save material, reduce at
This, improves generator adaptability and application.
The energy-efficient rare earth permanent-magnetic generator of one kind of technical solution of the present invention, air gap is between stator and rotor
1.5m can improve the output of rare earth permanent-magnetic generator energy to greatest extent, improve generator working efficiency, reduce generator certainly
Body loss.
Detailed description of the invention
The rotor structure figure of the energy-efficient rare earth permanent-magnetic generator of one kind of Fig. 1 technical solution of the present invention,
Fig. 2 is magnet yoke blanking sheet structural schematic diagram,
Fig. 3 is rotor cross-section schematic diagram.
Specific embodiment
For convenient for those skilled in the art understand that technical solution of the present invention, now in conjunction with Figure of description to the technology of the present invention side
Case is described further.
As shown in Figure 1 to Figure 3, a kind of energy-efficient rare earth permanent-magnetic generator of technical solution of the present invention, including stator 11
With the rotor 1 being arranged in stator 11, the rotor 1 includes central axis 2, magnetic yoke 12, magnetic shoe and two end plates 3, the magnetic yoke 12
It being set on central axis 2, two end plates 3 are respectively placed in 12 both ends of magnetic yoke, and the magnetic shoe includes radial magnetic shoe 51 and tangential magnetic shoe 61,
The radial direction magnetic shoe 51 and tangential magnetic shoe 61 are arranged in magnetic yoke 12, and are arranged along 12 circumferencial direction interval of magnetic yoke, described fixed
Air gap 12 is 1.5m between son 11 and rotor 1.
Based on the above-mentioned technical proposal, the magnetic shoe of rare earth permanent-magnetic generator includes radial magnetic shoe 51 and tangential magnetic shoe 61, radial direction
Magnetic shoe 51 and tangential magnetic shoe 61 are arranged in magnetic yoke 12, and are arranged along 12 circumferencial direction interval of magnetic yoke, and the design of this structure can
Rare-earth permanent magnet as much as possible can be placed in the case where 1 given volume of rotor, higher air gap flux density is improved, or
Person can minimize 1 volume of rotor in the case where air gap flux density is certain and reduce rare-earth permanent magnet quantity, save material, reduce
Cost improves generator adaptability and application.
Based on the above-mentioned technical proposal, air gap 13 is 1.5m between the stator 11 and rotor 1 of rare earth permanent-magnetic generator, can be most
The raising rare earth permanent-magnetic generator energy of limits exports, and improves generator working efficiency, reduces generator own loss.
Such as Fig. 2, magnetic yoke 12 is formed by stacking by several magnet yoke blanking sheets 4, and magnet yoke blanking sheet 4 includes axis hole 9, radial hole 5, tangential hole
6, location hole 8 and mounting hole 7,9 diameter of axis hole and central axis 2 are adapted, and keyway 10 is provided on axis hole 9, the diameter
Be respectively used to fixed radial magnetic shoe 51 and tangential magnetic shoe 61 to hole 5 and tangential hole 6, shape respectively with radial magnetic shoe 51 and tangential
61 cross-sectional shape of magnetic shoe is adapted, and the location hole 8 and mounting hole 7 are no less than two, and the location hole 8 is arranged in axis hole
9 outsides, the setting of mounting hole 7 is in 5 outside of radial hole, and all location holes 8 and mounting hole 7 are respectively with 9 central symmetry of axis hole
Setting, the two end plates 3 pass through mounting hole 7 by connecting screw and are fixedly connected with magnetic yoke 12.
Based on above-mentioned technical problem, radial magnetic shoe 51 and tangential magnetic shoe 61 are inserted into radial hole 5 and tangential hole 6 respectively, benefit
The fixation that magnetic shoe and hole are realized with the dimension difference between magnetic shoe and hole, does not need external component and is fixed, and then utilizes two
End plate further fixes magnetic shoe in magnetic yoke 12, on the one hand avoids magnetic leakage, on the other hand further magnetic shoe is fixed.
Such as Fig. 2, radial hole 5 and tangential hole 6 are arranged uniformly at intervals, and spacing distance is 2- between radial hole 5 and tangential hole 6
5mm, radial 51 width of magnetic shoe are twice of tangential 61 width of magnetic shoe, and tangential 61 length of magnetic shoe is the two of 51 length of radial magnetic shoe
Times, magnetic shoe mechanism is simple, easy to produce and process, simple process.
As shown in Figure 1 to Figure 3, a kind of energy-efficient rare earth permanent-magnetic generator of technical solution of the present invention, rotor structure are set
Meter, improves magnetic structure, and the structure of re-optimization permanent magnet reduces leakage field, improves the middle low-speed generator energy of permanent magnet generator
Power.
Technical solution of the present invention is exemplarily described invention above in conjunction with attached drawing, it is clear that present invention specific implementation
It is not subject to the restrictions described above, changes as long as using the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out
Into, or it is not improved the conception and technical scheme of invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (7)
1. a kind of energy-efficient rare earth permanent-magnetic generator, including stator and the rotor being arranged in stator, which is characterized in that institute
Stating rotor includes central axis, magnetic yoke, magnetic shoe and two end plates, and the magnetic yoke is arranged on center shaft, and two end plates are respectively placed in magnetic yoke
Both ends, the magnetic shoe include radial magnetic shoe and tangential magnetic shoe, and the radial direction magnetic shoe and tangential magnetic shoe are arranged in magnetic yoke, and along
The setting of magnetic yoke circumferencial direction interval, air gap is 1.5mm between the stator and rotor.
2. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 1, which is characterized in that if the magnetic yoke by
Dry magnet yoke blanking sheet is formed by stacking.
3. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 2, which is characterized in that the magnet yoke blanking sheet
Including axis hole, radial hole, tangential hole, location hole and mounting hole, the shaft hole diameter and central axis are adapted, and are arranged on axis hole
Have a keyway, the radial hole and tangential hole are respectively used to fixed radial magnetic shoe and tangential magnetic shoe, shape respectively with radial magnetic shoe
It is adapted with tangential magnetic shoe cross-sectional shape, the location hole and mounting hole are no less than two.
4. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 3, which is characterized in that the location hole is set
It sets on the outside of axis hole, the mounting hole is arranged on the outside of radial hole, and all location holes and mounting hole are respectively with axis hole center pair
Claim setting, the two end plates are fixedly connected by mounting hole with magnetic yoke.
5. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 3, which is characterized in that the radial hole and
Tangential hole is arranged uniformly at intervals.
6. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 3, which is characterized in that the radial hole and
Spacing distance is 2-5mm between tangential hole.
7. the energy-efficient rare earth permanent-magnetic generator of one kind according to claim 1, which is characterized in that the radial direction magnetic shoe
Width is twice of tangential magnetic shoe width, and the tangential magnetic shoe length is twice of radial magnetic shoe length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740855.0A CN110336398A (en) | 2019-08-12 | 2019-08-12 | A kind of energy-efficient rare earth permanent-magnetic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910740855.0A CN110336398A (en) | 2019-08-12 | 2019-08-12 | A kind of energy-efficient rare earth permanent-magnetic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110336398A true CN110336398A (en) | 2019-10-15 |
Family
ID=68149370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910740855.0A Pending CN110336398A (en) | 2019-08-12 | 2019-08-12 | A kind of energy-efficient rare earth permanent-magnetic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110336398A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545493A (en) * | 2012-01-22 | 2012-07-04 | 浙江大学 | Method for manufacturing rotor of permanent-magnet motor |
| CN204349624U (en) * | 2015-01-29 | 2015-05-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and there is its tangential permanent magnetic synchronous machine |
| CN104979919A (en) * | 2014-04-14 | 2015-10-14 | 孔和平 | 50Hz three-phase AC motor composed of radial magnetic field and radial coreless coil |
| CN210129780U (en) * | 2019-08-12 | 2020-03-06 | 安徽德科电气科技有限公司 | High-efficiency energy-saving rare earth permanent magnet generator |
-
2019
- 2019-08-12 CN CN201910740855.0A patent/CN110336398A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545493A (en) * | 2012-01-22 | 2012-07-04 | 浙江大学 | Method for manufacturing rotor of permanent-magnet motor |
| CN104979919A (en) * | 2014-04-14 | 2015-10-14 | 孔和平 | 50Hz three-phase AC motor composed of radial magnetic field and radial coreless coil |
| CN204349624U (en) * | 2015-01-29 | 2015-05-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and there is its tangential permanent magnetic synchronous machine |
| CN210129780U (en) * | 2019-08-12 | 2020-03-06 | 安徽德科电气科技有限公司 | High-efficiency energy-saving rare earth permanent magnet generator |
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