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
- permanent magnet
- synchronous generator
- generator rotor
- groove
- rotor
- 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
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 230000005291 magnetic effect Effects 0.000 title description 8
- 238000004080 punching Methods 0.000 claims description 27
- 230000004907 flux Effects 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
本实用新型公开了一种4极车用永磁同步发电机转子冲片，包括转子冲片本体，在转子冲片本体上均匀设置有多个用于放置永磁体的宽槽和窄槽，宽槽与窄槽之间设置有拉紧孔，在宽槽的外侧设置有断桥。本实用新型能够有效减小电机的漏磁，提高永磁体的利用率，减少永磁体用量，降低电机材料成本。
The utility model discloses a permanent magnet synchronous generator rotor punch for a 4-pole vehicle. A tension hole is arranged between the groove and the narrow groove, and a broken bridge is arranged outside the wide groove. The utility model can effectively reduce the flux leakage of the motor, improve the utilization rate of the permanent magnet, reduce the consumption of the permanent magnet and reduce the material cost of the motor.
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)
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170526 |