CN210957951U - Permanent magnet motor rotor punching sheet - Google Patents
Permanent magnet motor rotor punching sheet Download PDFInfo
- Publication number
- CN210957951U CN210957951U CN201922300773.2U CN201922300773U CN210957951U CN 210957951 U CN210957951 U CN 210957951U CN 201922300773 U CN201922300773 U CN 201922300773U CN 210957951 U CN210957951 U CN 210957951U
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- China
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- magnetic steel
- steel groove
- rotor punching
- permanent magnet
- motor rotor
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Abstract
The utility model provides a permanent-magnet machine rotor punching, through the recess that 8 outside-in are sunken at body edge equipartitions, make to constitute the magnet steel groove unit of placing the magnet steel between the adjacent recess to set up a plurality of looks spaced rectangle magnet steel grooves on every magnet steel groove unit, make every on the magnet steel groove unit the limit in the magnet steel groove outside is located same straight line, makes to be provided with between the adjacent magnet steel groove and separates the magnetic bridge, makes can realize the interval change of rotational speed through the mode of placing the magnet steel in the magnet steel groove of difference, improves the commonality of rotor punching.
Description
Technical Field
The utility model relates to a permanent-magnet machine field especially relates to a permanent-magnet machine rotor punching.
Background
The permanent magnet motor rotor is provided with the permanent magnet magnetic poles, which are generally called as magnetic steels, so that the magnetic field of the permanent magnet motor can be maintained without external energy after the permanent magnet motor is manufactured, the structure is simple, the reliability is high, the efficiency is high, and the application is wide.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's shortcoming, providing a permanent-magnet machine rotor punching that can adapt to different rotational speed intervals.
In order to achieve the above object, the present invention adopts a technical solution that a permanent magnet motor rotor punching sheet includes:
the body is in a disc shape;
8 grooves which are sunken from outside to inside are uniformly distributed on the edge of the body;
a magnetic steel groove unit for placing magnetic steel is formed between the adjacent grooves;
all be equipped with a plurality of looks spaced magnet steel grooves on every magnet steel groove unit, the magnet steel groove is the rectangle, every on the magnet steel groove unit the limit in the magnet steel groove outside is located same straight line, is provided with between the adjacent magnet steel groove and separates the magnetic bridge.
Preferably, the number of the magnetic steel slots on each magnetic steel slot unit is 3.
Further preferably, the magnetic steel grooves at the two ends are symmetrically distributed on two sides of the center line of the magnetic steel groove unit, and the center line of the magnetic steel groove unit is a connecting line between the center point of the outer contour of the magnetic steel groove and the center of the body.
Further preferably, the straight line is perpendicular to the center line of the magnetic steel slot unit.
Further preferably, the area of the magnetic steel slot in the middle is larger than the sum of the areas of the magnetic steel slots at the two ends.
Preferably, the width of the magnetic isolation bridge ranges from 1 mm to 1.5 mm.
Preferably, the body center department is provided with the shaft hole, set up the keyway on the shaft hole.
Further preferably, the body is provided with a plurality of bolt holes near the edge, the bolt holes are located on a connecting line between the bottom edge of the groove and the center of the body, and the bottom edge of the groove is the side edge of the groove near the center of the body.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model provides a permanent-magnet machine rotor punching, through the recess that 8 outside-in are sunken at body edge equipartitions, make to constitute the magnet steel groove unit of placing the magnet steel between the adjacent recess to set up a plurality of looks spaced rectangle magnet steel grooves on every magnet steel groove unit, make every on the magnet steel groove unit the limit in the magnet steel groove outside is located same straight line, makes to be provided with between the adjacent magnet steel groove and separates the magnetic bridge, makes can realize the interval change of rotational speed through the mode of placing the magnet steel in the magnet steel groove of difference, improves the commonality of rotor punching.
Drawings
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is a schematic view of magnetic steel installation in the 3000-6000 rpm range of the present invention.
FIG. 3 is a schematic view of the magnetic steel installation of the present invention in the range of 0-3000 rpm.
Wherein: 100. a body; 101. a shaft hole; 1011. a keyway; 102. bolt holes; 200. a groove; 300. a magnetic steel unit; 301. a first magnetic steel slot; 302. a second magnetic steel slot; 303. a third magnetic steel groove; 400. a magnetic isolation bridge; 500. and (5) magnetic steel.
Detailed Description
The technical scheme of the utility model is further explained by the following figures:
as shown in fig. 1, the utility model provides a permanent-magnet machine rotor punching, include: the magnetic steel groove structure comprises a body 100, the body 100 is a circular sheet-shaped part, 8 grooves 200 which are recessed from outside to inside are uniformly distributed at the edge of the body 100, the uniform distribution means that the grooves are uniformly distributed along the center of the body 100 in an annular shape, magnetic steel groove units 300 for placing magnetic steel 500 are formed between adjacent grooves 200, each magnetic steel groove unit 300 is provided with 3 magnetic steel grooves which are spaced from each other, namely a first magnetic steel groove 301, a second magnetic steel groove 302 and a third magnetic steel groove 303, the first magnetic steel groove 301 and the third magnetic steel groove 303 are positioned at two ends of the magnetic steel groove unit 300, the second magnetic steel groove 302 is positioned in the middle of the magnetic steel groove unit 300, the magnetic steel grooves are rectangular, the first magnetic steel groove 301 and the third magnetic steel groove 303 are the same in size and are symmetrically distributed at two sides of the center line of the magnetic steel groove unit 300, the center line of the magnetic steel groove 300 means a connecting line between the midpoint of the outer contour line of the magnetic steel groove 300 and the center of the body 100, The outermost sides of the second magnetic steel groove 302 and the third magnetic steel groove 303 are positioned on the same straight line, and the straight line is perpendicular to the central line of the magnetic steel groove 300; on the same magnetic steel slot unit 300, magnetic isolation bridges 400 are arranged between a first magnetic steel slot 301 and a second magnetic steel slot 302 and between a second magnetic steel slot 302 and a third magnetic steel slot 303, the width range of the magnetic isolation bridges 400 is 1-1.5mm, in the embodiment, the width of the magnetic isolation bridges 400 is 1.25mm, different from the width of the magnetic isolation bridges 400, the isolation bridge between the first magnetic steel slot 301 and the third magnetic steel slot 303 on the adjacent magnetic steel slot unit 300 is composed of a groove 200 and the outer edge of the magnetic steel slot unit 300, the area of the second magnetic steel slot 302 is larger than the sum of the area of the first magnetic steel slot 301 and the area of the third magnetic steel slot 303, a shaft hole 101 for placing a rotor shaft is arranged at the center of the body 100, a key groove 1011 matched with a key on the rotor shaft is also arranged on the shaft hole 101, in order to fix the stacked multi-piece body 100, a plurality of bolt holes 102 are also arranged on the body 100, the bolt holes 102 are arranged near the edge of the body 100, the bolt hole 102 is located on a connecting line between the middle point of the bottom edge of the groove 200 and the center of the body 100, and the bottom edge of the groove 200 is the side edge of the groove 200 close to the center of the body 100.
The following is a description of the usage of the present invention.
When the magnetic steel 500 is installed in the magnetic steel slot, if the rotation speed interval of the motor is 3000-6000 revolutions, only the magnetic steel 500 is installed in the second magnetic steel slot 302, and if the rotation speed interval of the motor is 0-3000 revolutions, the magnetic steel 500 is installed in all the first magnetic steel slot 301, the second magnetic steel slot 302 and the third magnetic steel slot 303, and of course, the winding of the stator needs to be correspondingly changed.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A permanent magnet motor rotor punching sheet comprises:
the body is in a disc shape;
8 grooves which are sunken from outside to inside are uniformly distributed on the edge of the body;
a magnetic steel groove unit for placing magnetic steel is formed between the adjacent grooves;
the method is characterized in that:
all be equipped with a plurality of looks spaced magnet steel grooves on every magnet steel groove unit, the magnet steel groove is the rectangle, every on the magnet steel groove unit the limit in the magnet steel groove outside is located same straight line, is provided with between the adjacent magnet steel groove and separates the magnetic bridge.
2. The permanent magnet motor rotor punching sheet according to claim 1, characterized in that: the number of the magnetic steel grooves on each magnetic steel groove unit is 3.
3. The permanent magnet motor rotor punching sheet according to claim 2, characterized in that: the magnetic steel grooves at two ends are symmetrically distributed on two sides of the center line of the magnetic steel groove unit, and the center line of the magnetic steel groove unit is a connecting line between the center point of the outer contour of the magnetic steel groove and the center of the body.
4. The permanent magnet motor rotor punching sheet according to claim 3, characterized in that: the straight line is perpendicular to the central line of the magnetic steel groove unit.
5. The permanent magnet motor rotor punching sheet according to claim 2, characterized in that: the area of the magnetic steel groove in the middle is larger than the sum of the areas of the magnetic steel grooves at the two ends.
6. The permanent magnet motor rotor punching sheet according to claim 1, characterized in that: the width range of the magnetic isolation bridge is 1-1.5 mm.
7. The permanent magnet motor rotor punching sheet according to claim 1, characterized in that: the body center department is provided with the shaft hole, set up the keyway on the shaft hole.
8. The permanent magnet motor rotor punching sheet according to any one of claims 1-7, characterized in that: the bolt holes are located on a connecting line of the bottom edge of the groove and the center of the body, and the bottom edge of the groove is the side edge of the groove close to the center of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300773.2U CN210957951U (en) | 2019-12-19 | 2019-12-19 | Permanent magnet motor rotor punching sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922300773.2U CN210957951U (en) | 2019-12-19 | 2019-12-19 | Permanent magnet motor rotor punching sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210957951U true CN210957951U (en) | 2020-07-07 |
Family
ID=71383062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922300773.2U Active CN210957951U (en) | 2019-12-19 | 2019-12-19 | Permanent magnet motor rotor punching sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210957951U (en) |
-
2019
- 2019-12-19 CN CN201922300773.2U patent/CN210957951U/en active Active
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