CN204597664U - Rotor yoke iron - Google Patents
Rotor yoke iron Download PDFInfo
- Publication number
- CN204597664U CN204597664U CN201520299103.2U CN201520299103U CN204597664U CN 204597664 U CN204597664 U CN 204597664U CN 201520299103 U CN201520299103 U CN 201520299103U CN 204597664 U CN204597664 U CN 204597664U
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- China
- Prior art keywords
- groove
- axis
- magnetic resistance
- rotor yoke
- yoke iron
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of rotor yoke iron is applicable to install for multiple permanent magnet, and rotates around an axis.This rotor yoke iron comprises a central part, an outer around portion around this central part, and a connecting portion be arranged between this central part and this outer around portion.This outer around portion forms multiple the outer of described permanent magnet installation that supply respectively and runs through groove.This connecting portion formed multiple respectively with described outer run through groove diametrically in run through groove, and be multiplely crossed on two corresponding adjacent outer magnetic resistance groove unit run through between groove.Each magnetic resistance groove unit comprises at least two magnetic resistance grooves separately arranged by the radial direction of this axis along, and each magnetic resistance groove is extend along the magnetic line of force path that corresponding two adjacent permanent magnets produce perpendicular to the cross sectional shape of this axis.By running through the design of groove and described magnetic resistance groove unit in described, making the magnetic line of force intensive and concentrating, to improve magnetic field intensity towards this outer around portion.
Description
Technical field
The utility model relates to a kind of rotor of permanent magnet motor, particularly relates to a kind of rotor yoke iron of this rotor.
Background technology
Consult Fig. 1, the rotor of public Open permanent magnet motor (permanent-magnet motor) in TaiWan, China patent publication No. 201240282.This rotor comprises a rotor core 1 (that is, general alleged rotor yoke iron) rotated around an axis 11, and 16 permanent magnets 2 be arranged in this rotor core 1.This rotor core 1 has magnetic field intensity when 8000A/m by multiple, and flux density B8000 is at more than 1.65T, and coercive force formed in a stacked at the steel plate of more than 100A/m.
This rotor core 1 comprises central part 12, the outer around portion 13 around this central part 12 around this axis 11, and a connecting portion 14 be arranged between this central part 12 and this outer around portion 13.This outer around portion 13 forms eight and runs through groove unit 131 outward.Run through groove unit 131 angularly at intervals around this axis 11 outside each, and extend along the direction of this axis 11 parallel.Each is outer run through groove unit 131 have two install for two permanent magnets 2 respectively run through groove 1311 outward separately, and the described outer groove 1311 that runs through matches V-shaped arrangement.This connecting portion 14 is formed in eight and runs through groove 141.Run through groove 141 in each angularly at intervals around this axis 11, and extend along the direction of this axis 11 parallel, and be crossed on corresponding two and adjacently run through between groove unit 131 outward.
By the structural design of this rotor core 1 and selecting of material, the rotating speed of this rotor is improved, and then improves the Driving Torque of this permanent magnet motor, and the running efficiency of permanent magnet motor is promoted.But the magnetic line of force 3 of this rotor can be dispersed towards the directional spreding of this axis 11, and to each other loosely, and cause magnetic field intensity not good and lifting that the is Driving Torque of this permanent magnet motor is obstructed, then affect the running efficiency of this permanent magnet motor.
Summary of the invention
The purpose of this utility model is to provide a kind of energy concentration magnetic line of force and the rotor yoke iron improving magnetic field intensity.
The utility model rotor yoke iron is applicable to install for multiple permanent magnet, and rotates around an axis.This rotor yoke iron comprises a central part, an outer around portion around this central part, and a connecting portion be arranged between this central part and this outer around portion.This outer around portion is formed multiple angularly at intervals around this axis, and runs through groove for described the outer of permanent magnet installation respectively.This connecting portion is formed in this central part of multiple vicinity and runs through groove, and the magnetic resistance groove unit of this outer around portion of multiple vicinity.Run through groove in described angularly at intervals around this axis, and run through groove diametrically outward with described respectively.Described magnetic resistance groove unit is angularly at intervals around this axis, and each magnetic resistance groove unit is crossed on corresponding two adjacently runs through between groove outward, and comprise at least two magnetic resistance grooves separately arranged by the radial direction of this axis along, and each magnetic resistance groove is extend along the magnetic line of force path that corresponding two adjacent permanent magnets produce perpendicular to the cross sectional shape of this axis.
In rotor yoke iron of the present utility model, described magnetic resistance groove unit, described in run through groove and the described outer groove that runs through extends along the direction of this axis parallel.
In rotor yoke iron of the present utility model, each magnetic resistance groove is curved perpendicular to the cross sectional shape of this axis, and the arc top of this arc is compared to two opposite ends this axis more contiguous of this arc.
In rotor yoke iron of the present utility model, the arc length of the described magnetic resistance groove of each magnetic resistance groove unit is increased progressively gradually by the direction towards this axis.
In rotor yoke iron of the present utility model, each is outer runs through groove and comprises one and to arrange for corresponding permanent magnet and to be limited in interior storage tank portion, and two respectively by outward extending magnetic resistance groove portion, the both sides in this storage tank portion.
In rotor yoke iron of the present utility model, each is outer runs through groove and also comprises two extension slot portions separately, and by the side in this storage tank portion of this axis contiguous towards this Axis Extension, described extension slot portion is respectively adjacent to described magnetic resistance groove portion.
In rotor yoke iron of the present utility model, run through groove in each triangular in shape perpendicular to the cross sectional shape of this axis, and this leg-of-mutton wherein summit and corresponding this is outer runs through groove diametrically.
The beneficial effects of the utility model are: by running through the design of groove and described magnetic resistance groove unit in described, make the magnetic line of force intensive and concentrate towards this outer around portion, and reduce magnetic resistance (magnetic reluctance) to improve magnetic flux density (magnetic flux), then improve magnetic field intensity.
Accompanying drawing explanation
Fig. 1 is a kind of end view of rotor in the past, illustrates that multiple permanent magnet is mounted in a rotor core;
Fig. 2 is the end view of an embodiment of the utility model rotor yoke iron;
Fig. 3 is the partial side view of an amplification, illustrates and runs through groove outside one of them in this embodiment;
Fig. 4 is a magnetic line of force distribution map, and the magnetic line of force distribution situation of the permanent magnet motor being provided with this embodiment is described; And
Fig. 5 is a magnetic line of force distribution map, illustrates and is provided with the magnetic line of force distribution situation that lacks a permanent magnet motor of the rotor yoke iron of magnetic group groove unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Consult Fig. 2,3 and 4, an embodiment of the utility model rotor yoke iron 3 is applicable to install for ten permanent magnets 7, and can rotate around an axis 31 relative to a stator 8.This rotor yoke iron 3 goes out the rotor in a permanent magnet motor with the construction of described permanent magnet 7.This rotor yoke iron 3 is a cylinder, and comprises a central part 4, outer around portion 6 around this central part 4, and a connecting portion 5 be arranged between this central part 4 and this outer around portion 6.
The perforation 41 that the direction that this central part 4 defines this axis 31 parallel extends.This perforation 41 can wear for a rotating shaft (not shown) of this permanent magnet motor, drives this rotor yoke iron 3 to rotate.
This outer around portion 6 forms ten and runs through groove 61 outward.Running through groove 61 outside described is angularly at intervals around this axis 31, and extends along the direction of this axis 31 parallel, and installs for described permanent magnet 7 respectively.The described outer number running through groove 61 is not limited to ten, can be two, three, four, eight or 12 etc.
The quantity that groove 61 is run through in the present embodiment China and foreign countries is identical with the quantity of permanent magnet 7, runs through groove 61 and comprise magnetic resistance groove portion 612 of 611, two, a storage tank portion outside each, and two extension slot portions 613 (see Fig. 3).This storage tank portion 611 is arranged for a permanent magnet 7, and makes in this permanent magnet 7 is limited in, can avoid coming off from this storage tank portion 611 when this rotor yoke iron 3 rotates.Described magnetic resistance groove portion 612 is stretched out by the both sides in this storage tank portion 611 respectively.Described magnetic resistance groove portion 612 can be equipped with air, maybe can fill one and be limited in the described outer viscose material (not shown) run through in groove 61 respectively securely to make described permanent magnet 7.Described extension slot portion 613 is spaced apart and be respectively adjacent to described magnetic resistance groove portion 612, and is extended towards this axis 31 by the side of this axis 31 contiguous in this storage tank portion 611.Described extension slot portion 613 can be used as the force place utilizing an instrument (not shown) to remove or install described permanent magnet 7.In addition, when described magnetic resistance groove portion 612 is filled with this viscose material, described extension slot portion 613 can be used as the excessive glue space of this viscose material, avoids this viscose material to flow to the surface of this rotor yoke iron 3, and need carry out clean.
This connecting portion 5 is formed in this central part 4 of ten vicinities and runs through groove 51, and the magnetic resistance groove unit 52 of ten these outer around portion 6 of vicinity.The number running through groove 51 and described magnetic resistance groove unit 52 in described is not limited to ten, can be two, three, four, eight or 12 etc.
Run through groove 51 in described to extend along the direction of this axis 31 parallel, and angularly at intervals around this axis 31, and run through groove 61 diametrically outward with described respectively.Groove 51 is run through triangular in shape perpendicular to the cross sectional shape of this axis 31 in each, and this leg-of-mutton wherein summit this outer around portion 6 contiguous run through groove 61 diametrically with corresponding this is outer.Groove 51 is run through because being equipped with air in described, make its magnetic resistance compared to large around it, thus the described magnetic line of force 9 can be forced to advance toward the direction that magnetic resistance is minimum, therefore, every two adjacent in run through groove 51 can match make the path of the described magnetic line of force 9 be limited in described in run through between groove 51 and this outer around portion 6, and can not disperse towards this axis 31, then make the described magnetic line of force 9 concentrate and comparatively dense to each other.
Described magnetic resistance groove unit 52 extends along the direction of this axis 31 parallel, and angularly at intervals around this axis 31.Each magnetic resistance groove unit 52, because being equipped with air, making magnetic resistance compared to large around it, thus forces the described magnetic line of force 9 to be advanced toward the direction that magnetic resistance is minimum, then makes the described magnetic line of force 9 intensive and concentrates towards this outer around portion 6.Each magnetic resistance groove unit 52 is crossed on corresponding two and adjacently runs through between groove 61 outward, and comprise at least two magnetic resistance grooves 521 separately arranged by the radial direction of this axis 31 along, that is, two opposite ends of each magnetic resistance groove 521 are respectively adjacent to corresponding two and adjacent run through groove 61 outward, and be curved perpendicular to the cross sectional shape of this axis 31, and extend along the magnetic line of force path that corresponding two adjacent permanent magnets 7 produce.The arc top of the arc of each magnetic resistance groove 521 is more be close to this axis 31 and arc length is increased progressively gradually by the direction towards this axis 31 compared to two opposite ends.
Consult Fig. 4 and 5, compared to the rotor yoke iron (see Fig. 5) lacking described magnetic group groove unit 52, the present embodiment, by running through the design of groove 51 and described magnetic resistance groove unit 52 in described, really makes the described magnetic line of force 9 intensive and concentrates towards this outer around portion 6.
In sum, by running through the design of groove 51 and described magnetic resistance groove unit 52 in described, making the described magnetic line of force 9 intensive and concentrating towards this outer around portion 6, and reducing magnetic resistance to improve magnetic flux density, then improving magnetic field intensity.In the rotor being applied to this permanent magnet motor, the Driving Torque of this permanent magnet motor can be made to improve, then promote the running efficiency of this permanent magnet motor, so really can the purpose of this utility model be reached.
Claims (7)
1. a rotor yoke iron, be applicable to install for multiple permanent magnet, and rotate around an axis, this rotor yoke iron comprises a central part; An outer around portion, around this central part, and is formed multiple angularly at intervals around this axis, and runs through groove for described the outer of permanent magnet installation respectively; And a connecting portion, be arranged between this central part and this outer around portion, and formed multiple in run through groove, this central part contiguous, and angularly at intervals around this axis, and run through groove diametrically outward with described respectively; It is characterized in that:
This connecting portion also forms multiple magnetic resistance groove unit, this outer around portion contiguous, and angularly at intervals around this axis, each magnetic resistance groove unit is crossed on corresponding two and adjacently runs through between groove outward, and comprise at least two magnetic resistance grooves separately arranged by the radial direction of this axis along, and each magnetic resistance groove is extend along the magnetic line of force path that corresponding two adjacent permanent magnets produce perpendicular to the cross sectional shape of this axis.
2. rotor yoke iron according to claim 1, is characterized in that: described magnetic resistance groove unit, described in run through groove and the described outer groove that runs through extends along the direction of this axis parallel.
3. rotor yoke iron according to claim 1, is characterized in that: each magnetic resistance groove is curved perpendicular to the cross sectional shape of this axis, and the arc top of this arc is compared to two opposite ends this axis more contiguous of this arc.
4. rotor yoke iron according to claim 3, is characterized in that: the arc length of the described magnetic resistance groove of each magnetic resistance groove unit is increased progressively gradually by the direction towards this axis.
5. rotor yoke iron according to claim 1, is characterized in that: each is outer runs through groove and comprise one and to arrange for corresponding permanent magnet and to be limited in interior storage tank portion, and two respectively by outward extending magnetic resistance groove portion, the both sides in this storage tank portion.
6. rotor yoke iron according to claim 5, it is characterized in that: run through groove outside each and also comprise two extension slot portions separately, by this axis contiguous in this storage tank portion side towards this Axis Extension, described extension slot portion is respectively adjacent to described magnetic resistance groove portion.
7. rotor yoke iron according to claim 1, is characterized in that: run through groove in each triangular in shape perpendicular to the cross sectional shape of this axis, and this leg-of-mutton wherein summit and corresponding this is outer runs through groove diametrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299103.2U CN204597664U (en) | 2015-05-11 | 2015-05-11 | Rotor yoke iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299103.2U CN204597664U (en) | 2015-05-11 | 2015-05-11 | Rotor yoke iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597664U true CN204597664U (en) | 2015-08-26 |
Family
ID=53933773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520299103.2U Expired - Fee Related CN204597664U (en) | 2015-05-11 | 2015-05-11 | Rotor yoke iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026597A (en) * | 2016-07-11 | 2016-10-12 | 江苏大学 | Built-in magnetic barrier type magnetic field enhanced permanent magnet brushless motor |
-
2015
- 2015-05-11 CN CN201520299103.2U patent/CN204597664U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026597A (en) * | 2016-07-11 | 2016-10-12 | 江苏大学 | Built-in magnetic barrier type magnetic field enhanced permanent magnet brushless motor |
| CN106026597B (en) * | 2016-07-11 | 2018-08-21 | 江苏大学 | Built-in magnetic hinders formula magnetic-field-enhanced permanent-magnetic brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180511 |