CN2907044Y - Rotor structure of external rotor motor - Google Patents
Rotor structure of external rotor motor Download PDFInfo
- Publication number
- CN2907044Y CN2907044Y CN 200620104810 CN200620104810U CN2907044Y CN 2907044 Y CN2907044 Y CN 2907044Y CN 200620104810 CN200620104810 CN 200620104810 CN 200620104810 U CN200620104810 U CN 200620104810U CN 2907044 Y CN2907044 Y CN 2907044Y
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- CN
- China
- Prior art keywords
- rotor
- wheel hub
- motor
- magnetic steel
- external
- 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 rotor structure of an outer rotor type motor rotor, comprising a wheel hub and a magnetic steel sheet which is arranged in the wheel hub, wherein, the magnetic steel sheet is evenly arranged in the inner circle of the wheel hub, the magnetic steel sheet is designed with a certain inclined angle to form the inclination in correspondence with the straight slot of the stator, by matching the inclined magnetic steel on the rotor with the straight slot of the stator, the magnetic field action force of the motor accumulates and releases gradually along the motion of rotor during operation, and the magnetic components distorts gradually and then recovers gradually so as to eliminate the electromagnetic noise and also eliminate the influence of the electromagnetic noise on the human body.
Description
Technical field
The utility model relates to electric vehicle motor, is meant the rotor structure of external-rotor motor especially.
Background technology
The electric vehicle motor that present people generally use mostly is external-rotor motor greatly, and the rotor of motor and the structure of stator are respectively that internal stator is provided with straight trough, and the magnet steel that external rotor is provided with vertical bar matches.Adopt above-mentioned such structure, have following defective: when machine operation, in the time of the electromagnetic component stress deformation, exist the sudden change that strain energy of distortion gathers and discharges, make to have electromagnetic noise in the process that is engaged in motor rotation of rotor groove.
The utility model content
The purpose of this utility model is to provide a kind of rotor structure of external-rotor motor, and is constant in other performance index of motor, under the situation that material cost does not increase, and the electromagnetic noise when having eliminated machine operation effectively.
For achieving the above object, be achieved by the following technical solution:
The rotor structure of external-rotor motor, form by wheel hub and the magnetic links that is arranged in the wheel hub, the uniform wheel hub inner ring that is fixed on of magnetic links wherein is characterized in that: described magnetic links design has certain angle of inclination, forms and the corresponding gradient of stator straight trough.
Described magnetic links that have with the angle of inclination vertical-horizontal azimuth axis be 10 the degree-45 the degree.
Adopt the rotor structure of the external-rotor motor of said structure, utilize the cooperation of epitrochanterian slanted bar magnet steel and stator straight trough, in the time of work, motion along with rotor, the action of a magnetic field power of motor is little by little gathered and is discharged, electromagnetic component little by little is out of shape and little by little recovers, thereby eliminated electromagnetic noise, has also eliminated the influence that electromagnetic noise for a long time brings human body effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model rotor;
Fig. 2 is the front view of the utility model rotor structure upper magnetic steel sheet;
Fig. 3 is the vertical view of the utility model rotor structure upper magnetic steel sheet;
Fig. 4 is a stator structure schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, the rotor structure of external-rotor motor is made up of wheel hub 1 and the magnetic links 2 that is arranged in the wheel hub, wherein the magnetic links 2 uniform wheel hub inner rings that are fixed on, the end face of each magnetic links 2 has corresponding radian, and magnetic links forms circumference in wheel hub 1 inner ring.
Shown in Fig. 2,3,4, the design of described magnetic links have certain angle of inclination, magnetic links that have with the angle of inclination vertical-horizontal azimuth axis be 10 degree-45 degree.Optimum execution mode is that the angle of inclination is 12 degree, thereby forms and stator 3 straight troughs 4 corresponding gradients.
Utilize the cooperation of epitrochanterian slanted bar magnet steel 2 and stator straight trough 4, in the time of work, motion along with rotor, the action of a magnetic field power of motor is little by little gathered and is discharged, electromagnetic component little by little is out of shape and little by little recovers, thereby eliminated electromagnetic noise, also eliminated the influence that electromagnetic noise for a long time brings human body effectively.
Claims (2)
1, the rotor structure of external-rotor motor, comprise wheel hub and be arranged on the interior magnetic links of wheel hub, the uniform wheel hub inner ring that is fixed on of magnetic links wherein is characterized in that: described magnetic links design has certain angle of inclination, forms and the corresponding gradient of stator straight trough.
2, the rotor structure of external-rotor motor as claimed in claim 1 is characterized in that: described magnetic links that have with the angle of inclination vertical-horizontal azimuth axis be 10 the degree-45 the degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104810 CN2907044Y (en) | 2006-06-19 | 2006-06-19 | Rotor structure of external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620104810 CN2907044Y (en) | 2006-06-19 | 2006-06-19 | Rotor structure of external rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2907044Y true CN2907044Y (en) | 2007-05-30 |
Family
ID=38115689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620104810 Expired - Fee Related CN2907044Y (en) | 2006-06-19 | 2006-06-19 | Rotor structure of external rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2907044Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769815A (en) * | 2014-01-13 | 2014-05-07 | 浙江今飞电动车轮有限公司 | Electric car rear wheel hub and manufacturing method thereof |
-
2006
- 2006-06-19 CN CN 200620104810 patent/CN2907044Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769815A (en) * | 2014-01-13 | 2014-05-07 | 浙江今飞电动车轮有限公司 | Electric car rear wheel hub and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |