CN1319246C - Motor stator and rotor core - Google Patents
Motor stator and rotor core Download PDFInfo
- Publication number
- CN1319246C CN1319246C CNB2004100274582A CN200410027458A CN1319246C CN 1319246 C CN1319246 C CN 1319246C CN B2004100274582 A CNB2004100274582 A CN B2004100274582A CN 200410027458 A CN200410027458 A CN 200410027458A CN 1319246 C CN1319246 C CN 1319246C
- Authority
- CN
- China
- Prior art keywords
- punching
- iron core
- sheet
- electric machine
- labeled slots
- 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.)
- Expired - Lifetime
Links
- 238000004080 punching Methods 0.000 claims abstract description 38
- 238000009826 distribution Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 230000001788 irregular Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000004907 flux Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention discloses a motor stator and rotor core (5) which comprises a plurality of punching sheets (1) which are stacked, wherein each punching sheet is a ring-shaped sheet, the outer periphery of the punching sheet is provided with a mark slot (3), and the inner periphery of the punching sheet is provided with a wire winding sheet (2). The present invention is characterized in that the mark slots (3) on the punching sheets are randomly distributed on the outer periphery of the core (5). the influenced degree of the mark slots to the uniformity of the magnetic field in the high-power motor stator and rotor core is reduced by optimizing magnetic field distribution.
Description
[technical field]
The present invention relates to a kind of electric machine rotor iron core, particularly relate to a kind of heavy-duty motor stator and rotor cores that Distribution of Magnetic Field is optimized.
[background technology]
Stator, the rotor core of motor are generally laminated structure, and in its manufacture process, master operation comprises that silicon steel sheet (mostly is 0.5mm, four big technologies such as 0.35mm) shearing, punching punching out, the processing of punching surface insulation and iron core pressure mounting.Wherein, applied billot of punching and coiled strip adopt plate shearing machine and slitting mill to cut out respectively according to technological requirement and form; The punching punching out is one critical process, its crudy directly influences performance unshakable in one's determination, usually adopt special-purpose punching device such as High-Speed Automatic forcing press or ordinary press, the silicon steel sheet of shearing is carried out punching out, obtain similar punching 1 as shown in Figure 1, described punching 1 is a kind of cyclic structure, evenly go out some coiling sheets 2 on the inner periphery, in addition, heavy-duty motor is because volume is bigger, and the coiling sheet is more, and the difficulty that rolls off the production line is also complicated, so general rotor punching designs underlined groove 3, and generates in excircle upper punch system simultaneously in the punching out process; The punching surface insulation is handled and is adopted method of lacquering.
Iron core pressure mounting technology is the important procedure of making unshakable in one's determination, adopts proprietary press mounting tool and press usually.Be the physical dimension accuracy that guarantees to press-fit, small-sized or low-power machine is normally put into slot wedge, and is made punching keep alignment between each coiling sheet 2; And, then adopt the groove lining bar to position usually for heavy-duty motor.Like this, in the electric machine rotor iron core 4 of general underlined groove, labeled slots 3 all are to be alignment or symmetrical distribution, as shown in Figure 2, then the groove lining bar is placed in one, to keep flute profile neat, again welding is suppressed in the punching 1 of having good positioning, thereby finished unshakable in one's determination 4 manufacturing.
At present, the production technology industry of aforesaid electric machine rotor iron core is still being used, but, process is to magnetic circuit analysis in the iron core, because the magnetic flux in the magnetic field is the physical quantity that and area have substantial connection, so having added the punching of labeled slots will certainly exert an influence to the uniformity coefficient of magnetic flux in the iron core, and in heavy-duty motor, when particularly magnetic flux is very high, influence can be apparent in view, thereby cause the unbalanced phenomenon of magnetic flux distributions in the magnetic field, and then influence motor properties, make that motor oscillating is big, noise is big.
Therefore, be necessary existing iron core is optimized to avoid above-mentioned situation.
[summary of the invention]
Technical problem to be solved by this invention is, a kind of electric machine rotor iron core is provided, and its Distribution of Magnetic Field is optimized, and makes the magnetic flux distributions integral body in the magnetic field present balanced state.
For solving the problems of the technologies described above, a kind of electric machine rotor iron core of the present invention, it comprises the punching that a plurality of closed assemblies are compressed together, each punching is ring segment and has labeled slots on its excircle and having the coiling sheet on the circumference within it, can be between each punching by coiling sheet positioned in alignment, it is characterized in that: the labeled slots in each punching are irregular mixed and disorderly distribution on the outer surface of iron core.
Preferably, in the relative position difference of the labeled slots of two end punchings (1) of described iron core.
The present invention has the following advantages:
Described electric machine rotor iron core, because its Distribution of Magnetic Field is optimized, and the uniformity that can reduce magnetic field in the heavy-duty motor stator and rotor cores is subjected to the labeled slots effect.
[description of drawings]
The present invention is further detailed explanation in conjunction with example with reference to the accompanying drawings:
Fig. 1 is the structure chart of electric machine rotor punching;
Fig. 2 is the structure chart of existing electric machine rotor iron core;
Fig. 3 is the structure chart of electric machine rotor iron core of the present invention.
[embodiment]
Below the present invention is made further instruction.
See also Fig. 3, electric machine rotor iron core 5 of the present invention, via punching 1 closed assembly and the compacting form, and the inner periphery upper punch of punching 1 be shaped on the coiling sheet 2, the excircle upper punch is shaped on labeled slots 3.Become 5 o'clock unshakable in one's determination at punching 1 closed assembly, observe from the side, the labeled slots 3 in the punching 1 are irregular mixed and disorderly distribution on unshakable in one's determination 5.
For producing such electric machine rotor iron core 5, its stacking technique flow process is as follows:
When carrying out lamination, punching 1 adopts coiling sheet 2 location, promptly by between coiling sheet 2, putting into slot wedge, and without labeled slots 3 location.In this process, each punching 1 is that only the coiling sheet 2 on the inner periphery is alignment and arranges, and labeled slots 3 and do not require aligned, like this, iron core 5 sides from closed assembly, labeled slots 3 be not according to regularly or be evenly, symmetrical expression ground distributes, and presents random mixed and disorderly distribution.
After stacking technique is finished, through the compacting welding, can finish the manufacturing of electric machine rotor iron core 5 again.
The electric machine rotor iron core 5 that manufacturing is finished carries out down line process again, at this moment, distinguishes the order that rolls off the production line by labeled slots 3, can produce the rotor of motor.
In addition, labeled slots 3 should be differentiated in two ends of unshakable in one's determination 5, and to play mark two ends unshakable in one's determination, it can be the mode that an end adopts several labeled slots alignment.
By such optimal way, magnetic flux in the magnetic field can not arranged because of the location notch alignment, and on a certain unit are, produce the phenomenon of magnetic flux inequality, otherwise, the mixed and disorderly telltale mark groove that distributes can carry out suitable compensation to the magnetic flux on a certain unit are, thereby has guaranteed the evenness of Distribution of Magnetic Field on the whole.
The foregoing description just embodies the preferred version of technical solution of the present invention, those skilled in the art to wherein some part some changes that may make all embodied principle of the present invention, belong within protection scope of the present invention.
Claims (2)
1, a kind of electric machine rotor iron core (5), comprise a plurality of closed assemblies punching compressed together (1), each punching (1) is ring segment and has labeled slots (3) on its excircle and having coiling sheet (2) on the circumference within it, by coiling sheet (2) positioned in alignment, it is characterized in that: the labeled slots (3) in each punching (1) are irregular mixed and disorderly distribution on the outer surface of (5) unshakable in one's determination between each punching (1).
2, electric machine rotor iron core as claimed in claim 1 is characterized in that: in the relative position difference of the labeled slots (3) of two end punchings (1) of described iron core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274582A CN1319246C (en) | 2004-05-31 | 2004-05-31 | Motor stator and rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274582A CN1319246C (en) | 2004-05-31 | 2004-05-31 | Motor stator and rotor core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1705184A CN1705184A (en) | 2005-12-07 |
| CN1319246C true CN1319246C (en) | 2007-05-30 |
Family
ID=35577592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100274582A Expired - Lifetime CN1319246C (en) | 2004-05-31 | 2004-05-31 | Motor stator and rotor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1319246C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989770A (en) * | 2010-08-12 | 2011-03-23 | 许晓华 | Motor stator structure |
| CN103795160A (en) * | 2011-12-31 | 2014-05-14 | 许晓华 | Casting-aluminum rotor |
| CN103840582B (en) * | 2012-11-23 | 2017-11-24 | 德昌电机(深圳)有限公司 | Motor and its rotor |
| JP2016187253A (en) | 2015-03-27 | 2016-10-27 | 株式会社三井ハイテック | Laminate iron core and manufacturing method of the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365132A (en) * | 1993-05-27 | 1994-11-15 | General Electric Company | Lamination for a dynamoelectric machine with improved cooling capacity |
| CN1049534C (en) * | 1991-05-20 | 2000-02-16 | 三洋电机株式会社 | Electric motor stator and their production method |
| JP2002142390A (en) * | 2000-11-06 | 2002-05-17 | Matsushita Electric Ind Co Ltd | Motor and compressor using the same |
-
2004
- 2004-05-31 CN CNB2004100274582A patent/CN1319246C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049534C (en) * | 1991-05-20 | 2000-02-16 | 三洋电机株式会社 | Electric motor stator and their production method |
| US5365132A (en) * | 1993-05-27 | 1994-11-15 | General Electric Company | Lamination for a dynamoelectric machine with improved cooling capacity |
| JP2002142390A (en) * | 2000-11-06 | 2002-05-17 | Matsushita Electric Ind Co Ltd | Motor and compressor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1705184A (en) | 2005-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |