CN208299559U - A kind of rare-earth permanent magnet motor rotor punching - Google Patents
A kind of rare-earth permanent magnet motor rotor punching Download PDFInfo
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- CN208299559U CN208299559U CN201820580567.4U CN201820580567U CN208299559U CN 208299559 U CN208299559 U CN 208299559U CN 201820580567 U CN201820580567 U CN 201820580567U CN 208299559 U CN208299559 U CN 208299559U
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Abstract
The utility model discloses a kind of rare-earth permanent magnet motor rotor punchings, including round rotor punching ontology, the center of rotor punching ontology is equipped with axis hole, rotor punching ontology is along the circumferential direction uniformly provided with several magnetic slot groups, each magnetic slot group includes three magnetic slots, three magnetic slots are distributed in isosceles triangle, the magnetic slot on the bottom edge line of its length direction perpendicular to vertex and the center of circle in the radial section of rotor punching ontology, and the magnetic slot on bottom edge is adjacent with the excircle of rotor punching ontology, magnetic bridge is equipped between the magnetic slot both ends and adjacent magnetic slot of each magnetic slot group.The rare-earth permanent magnet motor rotor punching of the utility model, the magnetic field that the rotor sheet of permanent magnet motor structure is generated by adjacent permanent magnet compared with prior art is stronger more evenly more stable, occupied space is small, the magnetic density of rotor punching is uniform, and then rotor more stable, lower noise in rotation.
Description
Technical field
The utility model relates to motor technology field more particularly to a kind of rotor punchings of rare-earth permanent-magnet electric machine.
Background technique
Rare-earth permanent-magnet electric machine is a kind of novel permanent-magnet motor occurred at the initial stage seventies, due to the high magnetic energy of rare-earth permanent magnet
Long-pending and high-coercive force (especially high intrinsic coercivity), so that rare-earth permanent-magnet electric machine is with small in size, light-weight, high-efficient, special
Property the series of advantages such as good, but also rare-earth permanent-magnet electric machine has been more and more widely used.
Existing rare-earth permanent-magnet electric machine, permanent magnet mostly use greatly built-in rotor magnetic circuit to install, and mechanical strength is preferable, but
There are the reluctance torques of motor it is high, torque pulsation and vibrating noise are larger the problems such as.
Utility model content
In view of the above-mentioned problems, the utility model aim is to provide a kind of rare-earth permanent magnet motor rotor punching, it is existing to solve
There is the problems in technology.
To achieve the goals above, the technical solution of the utility model is as follows:
A kind of rare-earth permanent magnet motor rotor punching, including round rotor punching ontology, the center of the rotor punching ontology
Equipped with axis hole, rotor punching ontology is along the circumferential direction uniformly provided with several magnetic slot groups, and each magnetic slot group includes three magnetic
Steel tank, three magnetic slots are distributed in isosceles triangle, the magnetic slot on bottom edge its length in the radial section of rotor punching ontology
Direction is perpendicular to the line on vertex and the center of circle, and the magnetic slot on bottom edge is adjacent with the excircle of rotor punching ontology, each magnet steel
Magnetic bridge is equipped between the magnetic slot both ends and adjacent magnetic slot of slot group.
A kind of preferred embodiment of the utility model, the rotor punching ontology are equipped with 12 magnetic slot groups.
Another preferred embodiment of the utility model is equipped with a lightening hole between each magnetic slot group and axis hole.
The outer circumferential walls of another preferred embodiment of the utility model, the rotor punching ontology are equipped with several welding
Point.
The inner wall of another preferred embodiment of the utility model, the axis hole is equipped with mark slot.
The rare-earth permanent magnet motor rotor punching of the utility model, compared with prior art the rotor sheet of permanent magnet motor knot
Structure is stronger more evenly more stable by the magnetic field that adjacent permanent magnet generates, and occupied space is small, and the magnetic density of rotor punching is equal
It is even, and then rotor more stable, lower noise in rotation；The efficiency and power factor for improving motor, make same power termination
Electric current becomes smaller, and can accordingly reduce matched controller power, so that system cost be greatly reduced.Using the utility model rotor
The rare-earth permanent-magnet electric machine of punching can be applied to the industries such as new-energy automobile, compressor, water pump.
Detailed description of the invention
Fig. 1 is the utility model rare-earth permanent magnet motor rotor lamination structure schematic diagram.
Specific embodiment
In order to be apparent to the technological means and implementation of the utility model, combined with specific embodiments below further
Illustrate the utility model.
Referring to Fig. 1, the rare-earth permanent magnet motor rotor punching of the utility model, including round rotor punching ontology 10 are described
The center of rotor punching ontology 10 is equipped with axis hole 11, sets that there are two keyway, one of keyways on 11 inner wall of axis hole
It is equipped with mark slot 16, the front and back sides of rotor punching are distinguished when laminating so as to rotor punching, guarantee the punching burr of rotor punching
In one direction.
Several magnetic slot groups for being used to place permanent magnetism, several magnet steel are along the circumferential direction equipped on rotor punching ontology 10
Slot group is distributed uniformly and circumferentially, and is arranged close to the outside of punching ontology.Each magnetic slot group includes three specification phases
Same magnetic slot 12, three magnetic slots 12 are distributed in isosceles triangle, and the magnetic slot 12 of isosceles triangle insole binding is rushed in rotor
Line of its length direction perpendicular to isosceles triangle vertex and the center of circle, and isosceles triangle indsole on the radial section of piece ontology
The magnetic slot 12 on side is adjacent with the excircle of rotor punching ontology 10 (i.e. the vertex of isosceles triangle is close to the center of circle).Each magnet steel
12 both ends of magnetic slot of slot group are equipped with magnetic bridge 13, and also are provided with magnetic bridge between the adjacent magnetic slot 12 of each magnetic slot group
13。
In the utility model, rotor punching ontology 10 is equipped with 12,12 12 magnetic slot groups, totally 36 magnetic slots magnet steel
Slot group is uniformly distributed along the circumferencial direction of punching ontology.
In the utility model, a lightening hole 14 is equipped between each magnetic slot group and axis hole 11.Lightening hole 14
In isosceles triangle, the vertex of isosceles triangle is close to the vertex of magnetic slot group, and the bottom edge of isosceles triangle is close to punching ontology
The center of circle, and base vertical is in the line on vertex and the center of circle.The design of lightening hole can reduce the moment of inertia of rotor, improve rotor
Revolving speed is applied in punching, reduces distortional stress of the rotor in high-speed rotation.
In the utility model, the outer circumferential walls of rotor punching ontology 10 are equipped with several pads 15, to facilitate rotor
Punching ontology 10 is connected and fixed.
The advantages of main feature, working method and the utility model of the utility model has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.
Claims (4)
1. a kind of rare-earth permanent magnet motor rotor punching, it is characterised in that: including round rotor punching ontology (10), the rotor punching
The center of piece ontology (10) is equipped with axis hole (11), and rotor punching ontology (10) is along the circumferential direction uniformly provided with several magnetic slots
Group, each magnetic slot group include three magnetic slots (12), and three magnetic slots (12) are distributed in isosceles triangle, the magnetic slot on bottom edge
(12) line of its length direction perpendicular to vertex and the center of circle, and the magnetic slot on bottom edge in the radial section of rotor punching ontology
(12) adjacent with the excircle of rotor punching ontology (10), magnetic slot (12) both ends of each magnetic slot group and adjacent magnetic slot
(12) magnetic bridge (13) are equipped between；
It is equipped with a lightening hole (14) between each magnetic slot group and axis hole (11), the lightening hole (14) is in isoceles triangle
Shape.
2. rare-earth permanent magnet motor rotor punching according to claim 1, it is characterised in that: on the rotor punching ontology (10)
Equipped with 12 magnetic slot groups.
3. rare-earth permanent magnet motor rotor punching according to claim 1, it is characterised in that: the rotor punching ontology (10)
Outer circumferential walls are equipped with several pads (15).
4. rare-earth permanent magnet motor rotor punching according to claim 1, it is characterised in that: set on the inner wall of the axis hole (11)
Markedness slot (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580567.4U CN208299559U (en) | 2018-04-23 | 2018-04-23 | A kind of rare-earth permanent magnet motor rotor punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820580567.4U CN208299559U (en) | 2018-04-23 | 2018-04-23 | A kind of rare-earth permanent magnet motor rotor punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299559U true CN208299559U (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820580567.4U Active CN208299559U (en) | 2018-04-23 | 2018-04-23 | A kind of rare-earth permanent magnet motor rotor punching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277849A (en) * | 2019-07-12 | 2019-09-24 | 精进电动科技股份有限公司 | A kind of motor rotor punching sheet and rotor |
-
2018
- 2018-04-23 CN CN201820580567.4U patent/CN208299559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277849A (en) * | 2019-07-12 | 2019-09-24 | 精进电动科技股份有限公司 | A kind of motor rotor punching sheet and rotor |
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