CN203406696U - Permanent-magnet synchronous motor and motor rotor thereof - Google Patents
Permanent-magnet synchronous motor and motor rotor thereof Download PDFInfo
- Publication number
- CN203406696U CN203406696U CN201320512204.4U CN201320512204U CN203406696U CN 203406696 U CN203406696 U CN 203406696U CN 201320512204 U CN201320512204 U CN 201320512204U CN 203406696 U CN203406696 U CN 203406696U
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- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- storage tank
- accommodating groove
- synchronous motor
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- 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 - Lifetime
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Abstract
The utility model provides a motor rotor which comprises a rotor core arranged on a rotating shaft, an accommodating groove arranged on magnetic poles of the rotor core, and a permanent magnet installed in the accommodating groove. The motor rotor further comprises reinforcing ribs which are arranged in the accommodating groove to divide the accommodating groove into a plurality of branch accommodating grooves, are used for fixing the permanent magnet and have a magnetic isolation effect. In the application, the accommodating groove is divided into a plurality of branch accommodating grooves by the reinforcing ribs. During actual installation, the permanent magnet matched with the accommodating groove is arranged, the arranged reinforcing ribs provide a force exertion point for the permanent magnet, namely, the force exertion point provided by the added reinforcing ribs for the centrifugal force of the permanent magnet prevents the permanent magnet from falling off the accommodating groove, thereby improving the stability of fixation of the permanent magnet in the accommodating groove and improving the running stability of a permanent-magnet synchronous motor. The utility model further provides a permanent-magnet synchronous motor equipped with the motor rotor.
Description
Technical field
The utility model relates to technical field of motors, particularly a kind of permagnetic synchronous motor and rotor thereof.
Background technology
Along with permagnetic synchronous motor exploitation and control technology ripe gradually, and the development of permanent magnet aspect performance and industrialization, every field is increasing to interest and the demand of employing permagnetic synchronous motor, particularly permanent magnetic synchronous frequency-conversion speed-regulating motor.At present, permagnetic synchronous motor is widely used in the fields such as various servomotors, wind power generation field and petroleum drilling and mining and driving motor for electric automobile.
In prior art, for the permanent magnet fixed form of permanent-magnetic synchronous motor rotor, be generally surface-mount type and built-in, wherein, surface-mount type is for sticking on permanent magnet on the surface of rotor.When permagnetic synchronous motor is worked, rotor rotates, and make to be arranged in its surperficial permanent magnet, rotates thereupon.And built-in in rotor core, offer one can accommodating permanent magnet storage tank, by storage tank, realizes fixing permanent magnet.But, for the equal larger permagnetic synchronous motor of rotating speed and power, the specification that its permanent magnet needs is larger, in rotation process the centrifugal force of permanent magnet all act on both sides on magnetic bridge, continuous increase along with rotating speed, make cannot meet the effect of offsetting permanent magnet centrifugal force every magnetic bridge, cause the unstable of permagnetic synchronous motor motion.
Therefore, how realizing fixing to permanent magnet, to improve the stability of permagnetic synchronous motor high-speed cruising, is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of rotor, makes the stable fixing of permanent magnet, to improve the stability of permagnetic synchronous motor high-speed cruising.Another object of the present utility model is to provide a kind of permagnetic synchronous motor with above-mentioned rotor.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of rotor, storage tank on each magnetic pole that comprise the rotor core that is arranged in rotating shaft, is opened in described rotor core, with for being arranged on the permanent magnet in described storage tank, wherein: also comprise: be arranged in described storage tank, move described storage tank is divided into some parts of storage tanks, and for described permanent magnet is fixed, and there is the reinforcement of separated magnetic effect.
Preferably, in above-mentioned rotor, the radial arrangement along described rotor core in described storage tank has two described reinforcements.
Preferably, in above-mentioned rotor, the degree of depth of described storage tank is identical with the axial length of described permanent magnet.
Preferably, in above-mentioned rotor, also comprise for blocking the notch of described storage tank, for to described permanent magnet spacing every magnetic shutter.
Preferably, in above-mentioned rotor, described is corrosion resistant plate every magnetic shutter.
, comprise rotor, it is characterized in that, described rotor is the rotor described in above-mentioned any one.
The utility model provides a kind of rotor, storage tank on each magnetic pole that comprise the rotor core that is arranged in rotating shaft, is opened in rotor core, with for being arranged on the permanent magnet in storage tank, wherein also comprise: be arranged in storage tank, storage tank is divided into some minutes storage tanks, and for permanent magnet is fixed, and there is the reinforcement of separated magnetic effect.In the application, by reinforcement, storage tank is isolated into several minute storage tank, the permanent magnet matching with storage tank by setting when actual installation, the reinforcement arranging provides impetus for permanent magnet, the impetus that the centrifugal force that the reinforcement increasing is permanent magnet provides, prevent that permanent magnet from coming off in storage tank, thereby improved being arranged on the fixing stability of permanent magnet in storage tank, thereby improved the stability of permagnetic synchronous motor operation.
Accompanying drawing explanation
The partial structurtes schematic diagram of the rotor that Fig. 1 provides for the utility model embodiment.
Embodiment
Core of the present utility model is to provide a kind of rotor, makes the stable fixing of permanent magnet, to improve the stability of permagnetic synchronous motor high-speed cruising.Another object of the present utility model is to provide a kind of permagnetic synchronous motor with above-mentioned rotor.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Please refer to shown in Fig. 1, the utility model embodiment discloses a kind of rotor, storage tank (not shown) on each magnetic pole that comprise the rotor core 1 that is arranged in rotating shaft 3, is opened in rotor core 1 and for being arranged on the permanent magnet 2 in storage tank, wherein also comprise: be arranged in storage tank, storage tank is divided into some minutes storage tanks, and for permanent magnet 2 is fixed, and there is the reinforcement 11 of separated magnetic effect.
In the application, by reinforcement 11, storage tank is isolated into several storage tanks, the permanent magnet 2 matching with storage tank by setting when actual installation, the reinforcement 11 arranging provides impetus for permanent magnet 2, the impetus that the centrifugal force that the reinforcement 11 increasing is permanent magnet 2 provides, prevent that permanent magnet 2 from coming off in storage tank, improved the stability of permagnetic synchronous motor operation.
In specific embodiment, radial arrangement along rotor core 1 in storage tank has two reinforcements 11, by two reinforcements 11, storage tank is divided into three little storage tanks, the reinforcement 11 increasing, for corresponding permanent magnet 2 provides impetus, has further improved the fixing stability of permanent magnet 2.It will be appreciated by persons skilled in the art that in practice and can to the number of reinforcement 11, arrange according to the power of permagnetic synchronous motor and rotating speed, and all in protection range.
Preferably, the position of reinforcement 11 in storage tank needs according to when working, and the distribution of the centrifugal force that permanent magnet produces is arranged.
Further, in embodiment, it is identical with the axial length of permanent magnet 2 that the degree of depth of storage tank is set to, and permanent magnet 2 can be placed in storage tank completely, for the degree of depth of storage tank, can arrange according to different needs, at this, is not specifically limited.
On the basis of technique scheme, the rotor providing in the application also comprises for blocking the axial notch of storage tank, for to permanent magnet 2 carry out axial limiting every magnetic shutter (not shown), by notch being sealed every magnetic shutter, thereby prevent that permanent magnet 2 from, when rotating with rotor core 1, departing from storage tank., be only to provide a kind ofly for the fixing mode of permanent magnet 2 herein, in practice, also can have adopted other modes to carry out spacing to permanent magnet 2.
Preferably, every magnetic shutter, be set to corrosion resistant plate.
When carrying out concrete design of electrical motor, meeting under the prerequisite of motor electromagnetic performance and rotor manufacture process requirement, maximum speed according to motor when moving, the centrifugal force of permanent magnet 2 and each pole wheel iron core self carries out stress analysis calculating to the effect of rotor core 1, guarantee reinforcement 11 and be positioned at meeting the demands every the suffered stress value of magnetic bridge 12 of storage tank two ends, determining reinforcement 11 and every the size of magnetic bridge 12 simultaneously.By design, guarantee reinforcement 11 and meet the demands every magnetic bridge 12 intensity and motor electromagnetic performance, and leaving certain margin of safety, finally guaranteeing motor reliability of operation.
The utility model embodiment also provides a kind of permagnetic synchronous motor, and it comprises rotor, particularly, the rotor that this rotor provides for above-described embodiment, therefore, the permagnetic synchronous motor with this electronics rotor also has above-mentioned all technique effects, and this is no longer going to repeat them.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a rotor, storage tank on each magnetic pole that comprise the rotor core (1) that is arranged in rotating shaft (3), is opened in described rotor core (1), with for being arranged on the permanent magnet (2) in described storage tank, it is characterized in that: also comprise: be arranged in described storage tank, so that described storage tank is divided into some minutes storage tanks, and for described permanent magnet (2) is fixed, and there is the reinforcement (11) of separated magnetic effect.
2. rotor according to claim 1, is characterized in that, the radial arrangement along described rotor core (1) in described storage tank has two described reinforcements (11).
3. rotor according to claim 2, is characterized in that, the degree of depth of described storage tank is identical with the axial length of described permanent magnet.
4. according to the rotor described in claim 1-3 any one, it is characterized in that, also comprise for blocking the notch of described storage tank, for to described permanent magnet (2) spacing every magnetic shutter.
5. rotor according to claim 4, is characterized in that, described is corrosion resistant plate every magnetic shutter.
6. a permagnetic synchronous motor, comprises rotor, it is characterized in that, described rotor is the rotor described in the claims 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512204.4U CN203406696U (en) | 2013-08-21 | 2013-08-21 | Permanent-magnet synchronous motor and motor rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512204.4U CN203406696U (en) | 2013-08-21 | 2013-08-21 | Permanent-magnet synchronous motor and motor rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406696U true CN203406696U (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512204.4U Expired - Lifetime CN203406696U (en) | 2013-08-21 | 2013-08-21 | Permanent-magnet synchronous motor and motor rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401332A (en) * | 2013-08-21 | 2013-11-20 | 南车株洲电机有限公司 | Permanent-magnet synchronous motor and motor rotor |
-
2013
- 2013-08-21 CN CN201320512204.4U patent/CN203406696U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401332A (en) * | 2013-08-21 | 2013-11-20 | 南车株洲电机有限公司 | Permanent-magnet synchronous motor and motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |