CN110401280A - A kind of high speed permanent magnet motor rotor with solid magnet steel - Google Patents
A kind of high speed permanent magnet motor rotor with solid magnet steel Download PDFInfo
- Publication number
- CN110401280A CN110401280A CN201910622404.7A CN201910622404A CN110401280A CN 110401280 A CN110401280 A CN 110401280A CN 201910622404 A CN201910622404 A CN 201910622404A CN 110401280 A CN110401280 A CN 110401280A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- high speed
- permanent magnet
- motor rotor
- speed permanent
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Abstract
The invention belongs to technical field of motors, are related to a kind of high speed permanent magnet motor rotor more particularly to a kind of high speed permanent magnet motor rotor with solid magnet steel.Including magnet steel (3), left axle end (1), right axle end (4) and protective case (2)；The present invention reduces linear velocity, in favor of improving motor speed, because linear velocity is directly proportional to rotor diameter, reducing rotor diameter can effectively reduce linear velocity by reducing rotor diameter.The high speed permanent magnet motor rotor uses unitary solid magnet steel, is only made of four parts, so structure is simple, small in size, power density is high, and structural stability is good, is suitable for the high rotation speed operation of motor and improves power of motor.The high speed permanent magnet motor rotor has many advantages, such as that structure is simple, rotor diameter is small, linear velocity is low, high mechanical strength, structural stability are good, power density is high, and this structure is conducive to improve motor speed and power.
Description
Technical field
The invention belongs to technical field of motors, it is related to a kind of high speed permanent magnet motor rotor, more particularly to a kind of with solid
The high speed permanent magnet motor rotor of magnet steel.
Background technique
Permanent magnet machine rotor generally uses silicon steel sheet repeatedly to make, and silicon steel sheet is internally embedded magnet steel, constitutes salient pole or non-salient pole
Rotor structure, this structure cause rotor diameter larger, and linear velocity is higher when high revolving speed, are unfavorable for improving motor speed；Have
Using piecemeal magnet steel, structure is complicated, when motor speed is higher, generates biggish centrifugal force, influences rotor stability, also unfavorable
In raising motor speed and power.
Summary of the invention
The object of the invention: constructing a kind of rotor structure of magneto, and rotor diameter is reduced 40% or so, reduces linear speed
Degree, in favor of improving motor speed, because linear velocity is directly proportional to rotor diameter, reducing rotor diameter can effectively reduce line
Speed.The high speed permanent magnet motor rotor neither uses silicon steel sheet, does not also use piecemeal magnetic steel structure, but uses whole real
Heart magnet steel is only made of four parts, so structure is simple, small in size, power density is high, and structural stability is good, is suitable for electricity
The high rotation speed operation of machine and raising power of motor.
A kind of technical solution of the present invention: high speed permanent magnet motor rotor with solid magnet steel, which is characterized in that including magnet steel
3, left axle end 1, right axle end 4 and protective case 2；The left axle end 1 and right axle end 4 is Step Shaft, and one end of major diameter is equipped with and magnetic
The groove that steel 3 cooperates, magnet steel 3 are mounted in the groove at left axle end 1, right axle end 4, constitute magnet steel shaft end component；The protective case 2
Elastic conjunction is outside the magnet steel shaft end component.
Left axle end 1, right axle end 4 and the protective case is all made of high-intensitive non-magnet material.
The solid magnet steel is generally cylindrical, and magnetizing direction is radially parallel magnetization.
The other end groove at the left axle end 1, right axle end 4 is coaxially provided with through-hole and coaxial with bigger diameter end.
The path port diameter at the right axle end 4 is greater than through-hole diameter.
The magnet steel primary is fixed as that left axle end 1 and 4 temperature of right axle end are first heated to 220 DEG C -260 DEG C, is then inserted in
Magnet steel 3 forms an assembly, rapid forcing functions.
The temperature is heated to 245 DEG C.
2 temperature of protective case is heated to 220 DEG C -260 DEG C, then described 2 sets of protective case in magnet steel shaft end component
On, rapid forcing functions.
The temperature is heated to 245 DEG C.
The invention has the advantages that: the high speed permanent magnet motor rotors with structure is simple, rotor diameter is small, linear velocity
The advantages that low, high mechanical strength, structural stability are good, power density is high, this structure are conducive to improve motor speed and power.
Detailed description of the invention
Fig. 1 is the high speed permanent magnet motor rotor cross-sectional view, side view and F-F, G-G cross-sectional view.
Fig. 2 is the high speed permanent magnet motor rotor explosive view.
Fig. 3 is the cross-sectional view and its sectional view along A-A at the left axle end 1 with "u"-shaped.
Fig. 4 is the cross-sectional view and its B-B direction cross-sectional view of the whole magnet steel 3 with central through hole.
The cross-sectional view and its C-C that Fig. 5 is protective case 2 are to cross-sectional view.
The cross-sectional view and its D-D that Fig. 6 is the right axle end 4 with "u"-shaped are to cross-sectional view.
Specific embodiment
Fig. 1 is the high speed permanent magnet motor rotor assemble cross-section, and Fig. 2 is the high speed permanent magnet motor rotor component
Exploded sectional view, the high speed permanent magnet motor rotor component by left axle end 1 (Fig. 3), protective case 2 (Fig. 5), magnet steel 3 (Fig. 4),
Right axle end 4 (Fig. 6) composition.
The magnet steel 3 (Fig. 4) is whole cylinder, and magnetizing direction is radially parallel magnetization.
The left axle end 1 (Fig. 3) and right axle end 4 (Fig. 6) has "u"-shaped, fixes for magnet steel primary, described
The outer diameter of the internal diameter of "u"-shaped and the magnet steel 3 is using interference fit." U " of the magnet steel 3 mounted in left axle end 1, right axle end 4
Shape inside configuration constitutes magnet steel shaft end component；2 elastic conjunction of protective case is outside the magnet steel shaft end component.
When assembly, left axle end 1 and 4 temperature of right axle end are first heated to 220 DEG C -260 DEG C, optimum temperature is 245 DEG C, then
It is inserted in magnet steel 3, forms an assembly, rapid forcing functions avoid magnet steel 3 from demagnetizing, and the primary for completing magnet steel 3 is fixed.
The internal diameter of the protective case 2 and the magnet steel shaft end component outer diameter are using interference fit.When assembly, first institute
2 temperature of protective case stated is heated to 220 DEG C -260 DEG C, and optimum temperature is 245 DEG C, then described 2 sets of protective case in magnet steel
On the component of shaft end, rapid forcing functions avoid magnet steel 3 from demagnetizing, and thus complete the high speed permanent magnet motor rotor assembly.
Left axle end 1, right axle end 4 and the protective case 2 is all made of high-intensitive non-magnet material.
The other end groove at the left axle end 1, right axle end 4 is coaxially provided with through-hole and coaxial with bigger diameter end.
The path port diameter at the right axle end 4 is greater than through-hole diameter, and the through hole connecting with path port is equipped with interior
Screw thread, it is complete for alinco assembled, then blocked with bolt etc., in order to avoid entering foreign matter in through-hole, also can according to need for connecting
Mechanical load.
Left axle end 1, right axle end 4 path end outer circle be equipped with spline housing for connecting mechanical load.
Claims (9)
1. a kind of high speed permanent magnet motor rotor with solid magnet steel, which is characterized in that including magnet steel (3), left axle end (1), the right side
Shaft end (4) and protective case (2)；The left axle end (1) and right axle end (4) is Step Shaft, and one end of major diameter is equipped with and magnet steel (3)
The groove of cooperation, magnet steel (3) are mounted in the groove of left axle end (1), right axle end (4), constitute magnet steel shaft end component；The protection
(2) elastic conjunction is covered outside the magnet steel shaft end component.
2. a kind of high speed permanent magnet motor rotor with solid magnet steel as described in claim 1, which is characterized in that the left side
Shaft end (1), right axle end (4) and protective case are all made of high-intensitive non-magnet material.
3. a kind of high speed permanent magnet motor rotor with solid magnet steel as described in claim 1, which is characterized in that the reality
Heart magnet steel is generally cylindrical, and magnetizing direction is radially parallel magnetization.
4. a kind of high speed permanent magnet motor rotor with solid magnet steel as described in claim 1, which is characterized in that the left side
Shaft end (1), right axle end (4) other end groove be coaxially provided with through-hole and coaxial with bigger diameter end.
5. a kind of high speed permanent magnet motor rotor with solid magnet steel as claimed in claim 4, which is characterized in that the right side
The path port diameter of shaft end (4) is greater than through-hole diameter.
6. a kind of high speed permanent magnet motor rotor with solid magnet steel as described in claim 1, which is characterized in that the magnet steel
Primary is fixed as that left axle end (1) and right axle end (4) temperature is first heated to 220 DEG C -260 DEG C, is then inserted in magnet steel (3), is formed
One assembly, rapid forcing functions.
7. a kind of high speed permanent magnet motor rotor with solid magnet steel as claimed in claim 6, which is characterized in that the temperature
It is heated to 245 DEG C.
8. a kind of high speed permanent magnet motor rotor with solid magnet steel as described in claim 1, which is characterized in that the protection
Set (2) temperature is heated to 220 DEG C -260 DEG C, and then the protective case (2) is covered on the component of magnet steel shaft end, is forced rapidly cold
But.
9. a kind of high speed permanent magnet motor rotor with solid magnet steel as claimed in claim 8, which is characterized in that the temperature
It is heated to 245 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622404.7A CN110401280A (en) | 2019-07-09 | 2019-07-09 | A kind of high speed permanent magnet motor rotor with solid magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622404.7A CN110401280A (en) | 2019-07-09 | 2019-07-09 | A kind of high speed permanent magnet motor rotor with solid magnet steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110401280A true CN110401280A (en) | 2019-11-01 |
Family
ID=68324456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622404.7A Pending CN110401280A (en) | 2019-07-09 | 2019-07-09 | A kind of high speed permanent magnet motor rotor with solid magnet steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110401280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042946A (en) * | 2021-11-26 | 2022-02-15 | 南方科技大学 | Mandrel of ultrahigh-speed air static pressure spindle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050099079A1 (en) * | 2003-11-10 | 2005-05-12 | Calnetix | Permanent magnet rotor construction wherein relative movement between components is prevented |
| CN104953740A (en) * | 2014-03-27 | 2015-09-30 | 三菱电机株式会社 | Rotor shaft and manufacturing method thereof, and electrical scanner using rotor shaft |
| CN105245065A (en) * | 2015-11-24 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Assembly equipment for rotor and rotor assembly method |
| CN105471137A (en) * | 2016-01-11 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotating shaft structure of permanent magnet motor and assembling method of the rotating shaft structure |
| CN109768687A (en) * | 2019-01-23 | 2019-05-17 | 北京智拓博科技有限公司 | A kind of permanent magnet machine rotor and its manufacturing method and motor and air blower |
-
2019
- 2019-07-09 CN CN201910622404.7A patent/CN110401280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050099079A1 (en) * | 2003-11-10 | 2005-05-12 | Calnetix | Permanent magnet rotor construction wherein relative movement between components is prevented |
| CN104953740A (en) * | 2014-03-27 | 2015-09-30 | 三菱电机株式会社 | Rotor shaft and manufacturing method thereof, and electrical scanner using rotor shaft |
| CN105245065A (en) * | 2015-11-24 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Assembly equipment for rotor and rotor assembly method |
| CN105471137A (en) * | 2016-01-11 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotating shaft structure of permanent magnet motor and assembling method of the rotating shaft structure |
| CN109768687A (en) * | 2019-01-23 | 2019-05-17 | 北京智拓博科技有限公司 | A kind of permanent magnet machine rotor and its manufacturing method and motor and air blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042946A (en) * | 2021-11-26 | 2022-02-15 | 南方科技大学 | Mandrel of ultrahigh-speed air static pressure spindle |
| CN114042946B (en) * | 2021-11-26 | 2022-09-27 | 南方科技大学 | Dabber of hypervelocity air static electricity main shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191101 |