CN107171470A - A kind of rotor sheet of permanent magnet motor structure - Google Patents
A kind of rotor sheet of permanent magnet motor structure Download PDFInfo
- Publication number
- CN107171470A CN107171470A CN201710565189.2A CN201710565189A CN107171470A CN 107171470 A CN107171470 A CN 107171470A CN 201710565189 A CN201710565189 A CN 201710565189A CN 107171470 A CN107171470 A CN 107171470A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- rotor punching
- motor structure
- sheet
- 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
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
-
- 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
- H02K2201/15—Sectional machines
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of rotor sheet of permanent magnet motor structure, it includes the rotor punching that silicon steel sheet, welding groove, permanent magnet and locating slot split are formed, the center of the rotor punching offers axis hole, wherein, the rotor punching has 24 grooves, and the rotor punching outside diameter is 255mm~260mm, and the width of rebate of the groove is 16mm~18mm, there is 2mm~5mm closed section, adjacent two slot distance is 1mm~3mm between the upper top surface and rotor punching of notch are cylindrical.Magnetic field that above-mentioned rotor sheet of permanent magnet motor structure is produced by adjacent permanent magnet it is stronger it is more stable evenly; shared space is smaller; make full use of permanent magnet; under protection intensity, from the magnetic field ability of the moderate raising motor of notch, stable electric current is produced; in the case where optimizing rational structure design; so that the magnetic density of rotor punching is uniform, and then more stable during rotor rotation, lower noise and saving material.
Description
Technical field
The present invention relates to a kind of rotor punching, more particularly, to a kind of rotor sheet of permanent magnet motor structure.
Background technology
The permanent magnet of rotor structure is located at internal rotor, has ferromagnetic material between permanent magnetism external surface and stator core inner circle
The pole shoe that (being typically lamination silicon steel sheet) is made, so as to help to improve the overload capacity and power of motor using reluctance torque
Density, and it is easy to weak magnetism speed expansion.Therefore such rotor is widely used by magneto institute.
But it is due to the relative position between the magnetic field of permanent magnet generation in rotor and permanent magnet leakage field space and permanent magnet
There is relation, if there is big discrepancy position between permanent magnet, the waste to material can be caused.
The content of the invention
It is an object of the invention to provide a kind of rotor sheet of permanent magnet motor structure, it, which has, produces field homogeneity, takes
The characteristics of space is small and improves motor performance, to solve the above mentioned problem that rotor punching is present in the prior art.
For up to this purpose, the present invention uses following technical scheme：
A kind of rotor sheet of permanent magnet motor structure, it includes what silicon steel sheet, welding groove, permanent magnet and locating slot split were formed
Rotor punching, the center of the rotor punching offers axis hole, wherein, the rotor punching has 24 grooves, the rotor punching
Outside diameter is 255mm~260mm, and the width of rebate of the groove is outside 16mm~18mm, the upper top surface and rotor punching of notch
There is 2mm~5mm closed section, adjacent two slot distance is 1mm~3mm between circle.
Especially, the shaft hole diameter is 175mm~180mm.
Especially, the rotor punching is fixed after laminating by welding groove, and the length of the welding groove is 8mm~9mm,
Width is 8mm~9mm.
Especially, a diameter of 1mm~2mm of the fillet of the notch, length is 4mm~6mm, and fillet is a diameter of directly over it
4mm~6mm.
Beneficial effects of the present invention are that the rotor sheet of permanent magnet motor structure is by adjacent permanent magnet compared with prior art
The magnetic field of generation it is stronger it is more stable evenly shared space is smaller, makes full use of permanent magnet, under protection intensity, select
The magnetic field ability of the moderate raising motor of notch, produces stable electric current, in the case where optimizing rational structure design so that rotor is rushed
The magnetic density of piece is uniform, and then rotor is more stable when rotating, lower noise and saving material.
Brief description of the drawings
Fig. 1 is the structural representation for the rotor sheet of permanent magnet motor structure that the specific embodiment of the invention 1 is provided.
In figure：
1st, silicon steel sheet；2nd, permanent magnet；3rd, axis hole；4th, welding groove；5th, locating slot.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1, Fig. 1 is the knot for the rotor sheet of permanent magnet motor structure that the specific embodiment of the invention 1 is provided
Structure schematic diagram.
In the present embodiment, a kind of rotor sheet of permanent magnet motor structure includes silicon steel sheet 1, permanent magnet 2, welding groove 4 and positioning
The rotor punching of the formation of groove 5, several rotor punchings are plugged on shop bolt, separated by a distance in punching to have gap, institute
Rotor punching is stated with 24 grooves, the outside diameter of the rotor punching is 255mm-260mm, and the width of rebate of the groove is
16mm-18mm, the upper top surface of notch is to the cylindrical closed section with 2mm-5mm of rotor punching, and adjacent two slot distance is 1mm-
3mm, the magnetic field of generation is stronger evenly, more stable during work, can reduce noise, improves motor performance.
The permanent magnet 2 is arranged in groove, and the center of the rotor punching offers axis hole 3, the welding groove 4 and fixed
Position groove 5 be may be contained within the inwall of the axis hole 3, and the rotor punching is fixed after laminating by welding groove 4, and welding groove 4 is grown
Spend for 8mm-9mm, width is 8mm-9mm.The positioning of rotor punching is easy in the setting of the locating slot 5, makes the folded of rotor punching
It is fixed relatively reliable.
The a diameter of 1mm-2mm of notch fillet of the groove, length is 3mm-4mm, a diameter of 4mm- of fillet directly over it
6mm。
Above example is the general principle and characteristic for elaborating the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (4)
1. a kind of rotor sheet of permanent magnet motor structure, it includes turn that silicon steel sheet, welding groove, permanent magnet and locating slot split are formed
Sub- punching, the center of the rotor punching offers axis hole, it is characterised in that the rotor punching has 24 grooves, the rotor
Punching outside diameter is 255mm~260mm, and the width of rebate of the groove is 16mm~18mm, and upper top surface and the rotor of notch are rushed
There is 2mm~5mm closed section, adjacent two slot distance is 1mm~3mm between piece is cylindrical.
2. rotor sheet of permanent magnet motor structure according to claim 1, it is characterised in that the shaft hole diameter is 175mm
~180mm.
3. rotor sheet of permanent magnet motor structure according to claim 1, it is characterised in that after the rotor punching is laminated
Fixed by welding groove, the length of the welding groove is 8mm~9mm, and width is 8mm~9mm.
4. rotor sheet of permanent magnet motor structure according to claim 1, it is characterised in that the fillet of the notch is a diameter of
1mm~2mm, length is 4mm~6mm, a diameter of 4mm~6mm of fillet directly over it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565189.2A CN107171470A (en) | 2017-07-12 | 2017-07-12 | A kind of rotor sheet of permanent magnet motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565189.2A CN107171470A (en) | 2017-07-12 | 2017-07-12 | A kind of rotor sheet of permanent magnet motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171470A true CN107171470A (en) | 2017-09-15 |
Family
ID=59823798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710565189.2A Pending CN107171470A (en) | 2017-07-12 | 2017-07-12 | A kind of rotor sheet of permanent magnet motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171470A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038893A (en) * | 2018-08-16 | 2018-12-18 | 明程电机技术（深圳）有限公司 | High speed rotor punching |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767306A (en) * | 2015-04-29 | 2015-07-08 | 南车株洲电力机车研究所有限公司 | Motor rotor and iron core thereof |
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
-
2017
- 2017-07-12 CN CN201710565189.2A patent/CN107171470A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767306A (en) * | 2015-04-29 | 2015-07-08 | 南车株洲电力机车研究所有限公司 | Motor rotor and iron core thereof |
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038893A (en) * | 2018-08-16 | 2018-12-18 | 明程电机技术（深圳）有限公司 | High speed rotor punching |
| CN109038893B (en) * | 2018-08-16 | 2020-04-28 | 明程电机技术（深圳）有限公司 | High-speed rotor punching sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
|
| RJ01 | Rejection of invention patent application after publication |