CN203896072U - Permanent magnetic synchronous generator rotor sheet for 4-pole cart - Google Patents
Permanent magnetic synchronous generator rotor sheet for 4-pole cart Download PDFInfo
- Publication number
- CN203896072U CN203896072U CN201420270710.1U CN201420270710U CN203896072U CN 203896072 U CN203896072 U CN 203896072U CN 201420270710 U CN201420270710 U CN 201420270710U CN 203896072 U CN203896072 U CN 203896072U
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- CN
- China
- Prior art keywords
- sipes
- synchronous generator
- permanent magnet
- generator rotor
- rotor 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.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a permanent magnet synchronous generator rotor sheet for a 4-pole cart. The permanent magnet synchronous generator rotor sheet comprises a rotor sheet body, a plurality of wide grooves and narrow grooves for storing permanent magnets are evenly formed in the rotor sheet body, tensioning holes are formed between the wide grooves and the narrow grooves, and cutoff bridges are arranged on outer sides of the wide grooves. Leakage flux of a motor can be effectively reduced, the utilization rate of the permanent magnets is improved, the number of the permanent magnets is reduced, and motor material cost is lowered.
Description
Technical field
The utility model relates to the punching of a kind of automobile permanent magnet synchronous generator rotor, particularly relates to a kind of 4 utmost point automobile permanent magnet synchronous generator rotor punchings, belongs to electric field of components.
Background technology
In recent years, automobile permanent magnet synchronous generator because its efficiency high, low speed power supply performance is good, voltage regulation is low, the advantage such as simple in structure, reliable operation, stable performance more and more applied.The rotor punching of car permanent magneto has surface-type and built-in two kinds of forms, and wherein the application of built-in rotor punching is comparatively extensive.Built-in rotor punching leakage field is larger, and the effective rate of utilization of permanent magnet is lower, has increased the material cost of motor.
For reducing leakage field, existing car permanent magneto arranges every magnetic bridge on rotor punching, but every magnetic effect not obvious, and rotor punching reliability is low.
Summary of the invention
Goal of the invention:
The purpose of this utility model is to propose one can reduce leakage field, can ensure again mechanical strength, 4 utmost point automobile permanent magnet synchronous generator rotor punchings that reliability is high.
Technical scheme:
A kind of 4 utmost point automobile permanent magnet synchronous generator rotor punchings, comprise rotor punching body, it is characterized in that: on rotor punching body, be evenly provided with multiple for placing sipes and the narrow groove of permanent magnet, between sipes and narrow groove, be provided with tension hole, have bridge cut-off in the arranged outside of sipes.
On rotor punching body excircle, be evenly provided with sipes, be equipped with narrow groove in the left and right sides, inner side of each sipes.
The quantity of described sipes and narrow groove is corresponding with motor pole number.
Advantage and effect:
This 4 utmost point automobile permanent magnet synchronous generator rotor punchings of the utility model, have the following advantages and beneficial effect:
(1) adopt bridge cut-off structure, effectively reduced rotor leakage field;
(2) effectively ensure mechanical strength, reliability is high;
(3) utilance of raising permanent magnet, reduces permanent magnet consumption, reduces motor material cost.
brief description of the drawings:
Fig. 1 is overall structure schematic diagram of the present utility model.
Description of reference numerals:
In figure: 1-sipes, the narrow groove of 2-, 3-strains hole, 4-bridge cut-off, 5-rotor punching body.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the utility model is i.e. 4 utmost point automobile permanent magnet synchronous generator rotor punchings of rotor punching that are applied on car permanent magneto, rotor punching is completely circular structure, comprise rotor punching body 5, it is characterized in that: on rotor punching body 5, be evenly provided with multiple for placing sipes 1 and the narrow groove 2 of permanent magnet, between described sipes 1 and narrow groove 2, be provided with tension hole 3, for punching axial tightening; There is bridge cut-off 4 in the arranged outside of described sipes 1, effectively reduced rotor leakage field.
On rotor punching body 5 excircles, be evenly provided with sipes 1, be equipped with narrow groove 2 in the left and right sides, inner side of each sipes 1.Sipes 1 arranges with narrow groove 2 intervals, the inner side of the corresponding sipes 1 in end of adjacent two narrow grooves 2.
The quantity of described sipes 1 and narrow groove 2 is corresponding with motor pole number.
The quantity in described tension hole 3 is also corresponding with the number of poles of motor, and the diameter in tension hole 3 can be arranged between 5～10mm, now best results, and tension Kong Tai little affect the tension intensity of rotor punching, strains Kong Tai great, can affect the leakage field of motor.
The width of described bridge cut-off 4 is a, and the width of described sipes 1 is b, and the width of bridge cut-off 4 and sipes 1 width should meet: a=
b, the width of bridge cut-off 4 is 2/3rds of sipes 1 width.Mechanical strength is set so high, effective every magnetic.
When the utility model uses:
Current existing rotor punching, without bridge cut-off, is ined succession, and leakage field phenomenon is serious, the utility model in sipes 1 arranged outside bridge cut-off 4, efficiently solve this problem.
Rotor punching described in the utility model in use, the permanent magnet being arranged in sipes 1 and narrow groove 2 outwards sends total magnetic flux, total magnetic flux is main flux and leakage flux sum, and wherein main flux is useful magnetic flux, and leakage flux is harmful magnetic flux, leakage flux is that main flux is fewer more, more unfavorable to motor, after the arranged outside bridge cut-off 4 of sipes 1, effectively stop leakage field, reduce leakage flux, the main flux that motor sends is increased greatly.So just can reduce the consumption of permanent magnet, effectively save the production cost of motor.
Claims (3)
1. utmost point automobile permanent magnet synchronous generator rotor punching, comprise rotor punching body (5), it is characterized in that: on rotor punching body (5), be evenly provided with multiple for placing sipes (1) and the narrow groove (2) of permanent magnet, between sipes (1) and narrow groove (2), be provided with tension hole (3), have bridge cut-off (4) in the arranged outside of sipes (1).
2. a kind of 4 utmost point automobile permanent magnet synchronous generator rotor punchings according to claim 1, it is characterized in that: on rotor punching body (5) excircle, be evenly provided with sipes (1), be equipped with narrow groove (2) in the left and right sides, inner side of each sipes (1).
3. a kind of 4 utmost point automobile permanent magnet synchronous generator rotor punchings according to claim 1 and 2, is characterized in that: described sipes (1) is corresponding with motor pole number with the quantity of narrow groove (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270710.1U CN203896072U (en) | 2014-05-26 | 2014-05-26 | Permanent magnetic synchronous generator rotor sheet for 4-pole cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270710.1U CN203896072U (en) | 2014-05-26 | 2014-05-26 | Permanent magnetic synchronous generator rotor sheet for 4-pole cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896072U true CN203896072U (en) | 2014-10-22 |
Family
ID=51722426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270710.1U Expired - Fee Related CN203896072U (en) | 2014-05-26 | 2014-05-26 | Permanent magnetic synchronous generator rotor sheet for 4-pole cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956844A (en) * | 2014-05-26 | 2014-07-30 | 沈阳工业大学 | Permanent magnet synchronous generator rotor sheet for 4-pole cart |
| CN108667172A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor and the method for manufacturing rotor |
-
2014
- 2014-05-26 CN CN201420270710.1U patent/CN203896072U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956844A (en) * | 2014-05-26 | 2014-07-30 | 沈阳工业大学 | Permanent magnet synchronous generator rotor sheet for 4-pole cart |
| CN108667172A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor and the method for manufacturing rotor |
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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 |
Granted publication date: 20141022 Termination date: 20170526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |