CN203942357U - A kind of embedded rotor structure - Google Patents
A kind of embedded rotor structure Download PDFInfo
- Publication number
- CN203942357U CN203942357U CN201420336344.5U CN201420336344U CN203942357U CN 203942357 U CN203942357 U CN 203942357U CN 201420336344 U CN201420336344 U CN 201420336344U CN 203942357 U CN203942357 U CN 203942357U
- Authority
- CN
- China
- Prior art keywords
- stop hook
- radial groove
- arc limit
- magnetic inductive
- left stop
- 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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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of embedded rotor structure, comprise rotor core and some permanent magnets, rotor core comprises and is provided with the annular ring of central shaft hole and the some magnetic inductive blocks that protrude from annular ring outside, between adjacent two magnetic inductive blocks, form radial groove, permanent magnet is arranged on radial groove the inside, on the both sides magnetic inductive block of the peristome of radial groove, protrude respectively left stop hook and right stop hook, it is characterized in that: the length of left stop hook is greater than the length of right stop hook, the left stop hook of peristome and the distance L of right stop hook at same radial groove are 1.5mm to 2.3mm, this is simple in structure, reasonable in design, the back emf waveform of rotor is steady, operational efficiency is high, there is the larger market competitiveness.
Description
Technical field
The utility model relates to a kind of embedded rotor structure, belongs to machine field.
Background technology
Embedded rotor comprises rotor core and some permanent magnets at present, rotor core comprises and is provided with the annular ring of central shaft hole and the some magnetic inductive blocks that protrude from annular ring outside, between adjacent two magnetic inductive blocks, form radial groove, permanent magnet is arranged on radial groove the inside, on the both sides magnetic inductive block of the peristome of radial groove, protrude respectively stop hook, but the embedded rotor of this structure is because design is unreasonable, cause magnetic field uneven, the waveform of back electromotive force has distortion, affect the operational efficiency of rotor, and rotor torque pulsation is large, loss is high.
Utility model content
Main purpose of the present utility model is to provide a kind of embedded rotor structure, and this is simple in structure, reasonable in design, and the back emf waveform of rotor is steady, and operational efficiency is high, has the larger market competitiveness.
Above-mentioned purpose is achieved by the following technical solution:
A kind of embedded rotor structure, comprise rotor core and some permanent magnets, rotor core comprises and is provided with the annular ring of central shaft hole and the some magnetic inductive blocks that protrude from annular ring outside, between adjacent two magnetic inductive blocks, form radial groove, permanent magnet is arranged on radial groove the inside, on the both sides magnetic inductive block of the peristome of radial groove, protrude respectively left stop hook and right stop hook, it is characterized in that: the length of left stop hook is greater than the length of right stop hook, is 1.5mm to 2.3mm in the left stop hook of peristome and the distance L of right stop hook of same radial groove.
Left stop hook described above and right stop hook all comprise outer arc limit, inner arc limit and be connected to outer arc limit and inner arc limit between trimming, outer arc limit and inner arc limit are all to using the center O of rotor core as the center of circle.
Left stop hook described above and the inner arc limit of right stop hook compress the lateral surface of permanent magnet.
In the middle of the bottom of radial groove described above, be provided with boss, the medial surface of permanent magnet is bearing on the end face of boss.
The quantity of magnetic inductive block described above is 10, and magnetic inductive block is circumferentially evenly distributed on the outside of annular ring.
The diameter D of rotor core described above is 70mm to 100mm.
The utility model compared with prior art tool has the following advantages:
1) length of left stop hook is greater than the length of right stop hook, in the left stop hook of peristome and the distance L of right stop hook of same radial groove, is 1.5mm to 2.3mm, and this is simple in structure, reasonable in design, the back emf waveform of rotor is steady, and operational efficiency is high, has the larger market competitiveness;
2) left stop hook and right stop hook all comprise outer arc limit, inner arc limit and be connected to outer arc limit and inner arc limit between trimming, outer arc limit and inner arc limit are all to using the center O of rotor core as the center of circle, reasonable in design, and effectively guiding magnetic field line distributes, make magnetic circuit balance, improve rotor efficiency;
3) the inner arc limit of left stop hook and right stop hook compresses the lateral surface of permanent magnet, in the middle of the bottom of radial groove, is provided with boss, and the medial surface of permanent magnet is bearing on the end face of boss, simple in structure, and the installation of permanent magnet is fastening, is difficult for getting loose.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A partial enlarged drawing in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment mono-: as depicted in figs. 1 and 2, the utility model is a kind of embedded rotor structure, comprise rotor core 1 and some permanent magnets 2, rotor core 1 comprises and is provided with the annular ring 11 of central shaft hole and the some magnetic inductive blocks 12 that protrude from annular ring 11 outsides, between adjacent two magnetic inductive blocks 12, form radial groove 13, permanent magnet 2 is arranged on radial groove 13 the insides, on the both sides magnetic inductive block 12 of the peristome 131 of radial groove 13, protrude respectively left stop hook 121 and right stop hook 122, the length of left stop hook 121 is greater than the length of right stop hook 122, the left stop hook 121 of peristome 131 and the distance L of right stop hook 122 at same radial groove 13 are 1.5mm to 2.3mm, by the left stop hook 121 on magnetic inductive block 12 or right stop hook 122 guiding magnetic field lines, distribute, make Distribution of Magnetic Field balance, improve rotor operation efficiency.Preferred distance L is between 1.9mm to 2.1mm.Left stop hook 121 and right stop hook 122 all comprise outer arc limit 123, inner arc limit 124 and be connected to outer arc limit 123 and inner arc limit 124 between trimming 125, outer arc limit 123 and inner arc limit 124 are all to using the center O of rotor core 1 as the center of circle.The inner arc limit 124 of left stop hook 121 and right stop hook 122 compresses the lateral surface of permanent magnet 2.In the middle of the bottom of radial groove 13, be provided with boss 132, the medial surface of permanent magnet 2 is bearing on the end face of boss 132.The quantity of magnetic inductive block 12 is 10, and magnetic inductive block 12 is circumferentially evenly distributed on the outside of annular ring 11.The diameter D of rotor core 1 is 70mm to 100mm.The diameter D of preferred rotor core 1 is between 80mm to 85mm.
Principle of the present utility model is: the length of left stop hook is greater than the length of right stop hook, the left stop hook of peristome and the distance L of right stop hook at same radial groove are 1.5mm to 2.3mm, this is simple in structure, reasonable in design, the back emf waveform of rotor is steady, operational efficiency is high, has the larger market competitiveness.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (6)
1. an embedded rotor structure, comprise rotor core (1) and some permanent magnets (2), rotor core (1) comprises and is provided with the annular ring (11) of central shaft hole and the some magnetic inductive blocks (12) that protrude from annular ring (11) outside, between adjacent two magnetic inductive blocks (12), form radial groove (13), permanent magnet (2) is arranged on radial groove (13) the inside, on the both sides magnetic inductive block (12) of the peristome (131) of radial groove (13), protrude respectively left stop hook (121) and right stop hook (122), it is characterized in that: the length of left stop hook (121) is greater than the length of right stop hook (122), the left stop hook (121) of peristome (131) and the distance L of right stop hook (122) in same radial groove (13) are 1.5mm to 2.3mm.
2. a kind of embedded rotor structure according to claim 1, it is characterized in that: left stop hook (121) and right stop hook (122) all comprise outer arc limit (123), inner arc limit (124) and be connected to outer arc limit (123) and inner arc limit (124) between trimming (125), outer arc limit (123) and inner arc limit (124) are all to using the center O of rotor core (1) as the center of circle.
3. a kind of embedded rotor structure according to claim 2, is characterized in that: the inner arc limit (124) of left stop hook (121) and right stop hook (122) compresses the lateral surface of permanent magnet (2).
4. according to a kind of embedded rotor structure described in claim 1 or 2 or 3, it is characterized in that: in the middle of the bottom of radial groove (13), be provided with boss (132), the medial surface of permanent magnet (2) is bearing on the end face of boss (132).
5. a kind of embedded rotor structure according to claim 4, is characterized in that: the quantity of described magnetic inductive block (12) is 10, and magnetic inductive block (12) is circumferentially evenly distributed on the outside of annular ring (11).
6. a kind of embedded rotor structure according to claim 5, is characterized in that: the diameter D of rotor core (1) is 70mm to 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336344.5U CN203942357U (en) | 2014-06-23 | 2014-06-23 | A kind of embedded rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336344.5U CN203942357U (en) | 2014-06-23 | 2014-06-23 | A kind of embedded rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203942357U true CN203942357U (en) | 2014-11-12 |
Family
ID=51861644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336344.5U Expired - Fee Related CN203942357U (en) | 2014-06-23 | 2014-06-23 | A kind of embedded rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203942357U (en) |
-
2014
- 2014-06-23 CN CN201420336344.5U patent/CN203942357U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: LI JIAQI Free format text: FORMER NAME: XIE GUOZHU |
|
| CB03 | Change of inventor or designer information |
Inventor after: Li Jiaqi Inventor after: Qi Meiling Inventor after: Xie Guozhu Inventor after: Wang Yiling Inventor before: Xie Guozhu Inventor before: Qi Meiling Inventor before: Li Jiaqi Inventor before: Wang Yiling |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIE GUOZHU QI MEILING LI JIAQI WANG YILING TO: LI JIAQI QI MEILING XIE GUOZHU WANG YILING |
|
| CP03 | Change of name, title or address |
Address after: Printing factory dormitory 410500 Xiangyin County of Hunan Province town of Xianfeng County Road Patentee after: Li Jiaqi Patentee after: Qi Meiling Patentee after: Xie Guozhu Patentee after: Wang Yiling Address before: Gaotangling town Lei Feng Road community labor Road 410000 in Hunan province Changsha Wangcheng District No. 68 Patentee before: Xie Guozhu Patentee before: Qi Meiling Patentee before: Li Jiaqi Patentee before: Wang Yiling |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |