CN202475055U - Rotor punching sheet for permanent magnet reluctance motor - Google Patents
Rotor punching sheet for permanent magnet reluctance motor Download PDFInfo
- Publication number
- CN202475055U CN202475055U CN2011205292328U CN201120529232U CN202475055U CN 202475055 U CN202475055 U CN 202475055U CN 2011205292328 U CN2011205292328 U CN 2011205292328U CN 201120529232 U CN201120529232 U CN 201120529232U CN 202475055 U CN202475055 U CN 202475055U
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- punching sheet
- rotor punching
- motor
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- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a rotor punching sheet for a permanent magnet reluctance motor, comprising a rotor punching sheet arranged inside a stator punching sheet; wherein, an outer edge of the rotor punching sheet is provided with a plurality of arched gaps which are sunk towards an axis center; air gaps are formed among the arched gaps, the outer edge of the rotor punching sheet, and an inner side of the stator punching sheet, the largest air gap is formed between the arched gap and the inner side of the stator punching sheet, the smallest air gap is formed between the outer edge of the rotor punching sheet and the inner side of the stator punching sheet; when electromagnetic wires pass through the spaced air gaps with different sizes, a sine wave magnetic field corresponding to a sine wave of a power supply of the motor is generated. The rotor punching sheet of the utility model has the beneficial effects that: the scheme of the utility model can meet use requirements of many occasions needing for high-speed positioning accuracy, thereby expanding an application range of the motor to a great extent; at the same time, by adopting the rotor punching sheet of the utility model, accurate positioning also can be performed in the case of a high motor rotating speed without adjustment, thereby greatly raising a production efficiency.
Description
Technical field
The utility model relates to the parts on a kind of motor, and especially a kind of rotor punching of permanent-magnet magnetic resistance motor belongs to the electric machine technical field.
Background technology
Motor all is made up of stator, rotor, support, end cap etc., and according to working power, structure and the principle etc. of motor, motor is divided into many types.And the permanent-magnet magnetic resistance motor is widely used in aspects such as servo-drive because of advantages such as its energy density are high, operating efficiency is good, noise is little.In motor, the iron core part of the iron core of stator part and rotor all is the magnetic conduction part of motor, and its service behaviour to motor plays crucial effects.Its shape, size, technological level are determining noise, vibrations, temperature rise and the various energy index of motor.And the stator core of motor and rotor core all are overrided to form by a lot of stator punchings or rotor punching.In the permanent-magnet magnetic resistance motor (shown in accompanying drawing 2), be positioned at the rotor punching 20 of stator punching 10 inside, the inboard formation annulus gap 30 with stator punching 10 behind electrical power, carries out electromagnetic conversion through air gap 30, and mechanical energy is passed by rotor.Because the outer rim of rotor punching 20 is circular, the air gaps 30 that itself and stator punching 10 inboards form also are to equate everywhere, so after electromagnetic wire passed through air gap 30, the magnetic field of generation and the sinusoidal waveform of motor power can not reach well and agree with.This has brought a lot of limitations with regard to the application of giving the permanent-magnet magnetic resistance motor, and some need the occasion of high speed positioning accuracy, like the injection molding machine servo system etc., just can not use.
Summary of the invention
The utility model purpose is a kind of range of application that enlarges motor to be provided, the rotor punching of the permanent-magnet magnetic resistance motor of the instructions for use of the high speed of satisfying the demand positioning accuracy occasion for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of rotor punching of permanent-magnet magnetic resistance motor comprises being positioned at the inner rotor punching of stator punching; On the outer of said rotor punching, have a plurality of arch breach to the axle center depression; Said arch breach, rotor punching outer and stator punching are inboard, form an air gap between the three, and the air gap between arch breach and the stator punching inboard is maximum, and the air gap between rotor punching and the stator punching inboard is minimum; When the air gap that said size is separated by passes through at electromagnetic wire, produce and the sinusoidal wave corresponding sine wave magnetic field of motor power.
Preferably, said arch breach has eight, and is opened in uniform way on the outer of rotor punching, forms a petal shape.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The rotor punching of a kind of permanent-magnet magnetic resistance motor of the utility model scheme; A plurality of arch breach that its outer has; Make that rotor punching is not to equate with the air gap that stator punching forms everywhere; After the energising, the gas length that electromagnetic wire passes through changes by sine wave, produces and the sinusoidal wave corresponding sine wave magnetic field of motor power.Because the waveform of this sine wave magnetic field and the high fit of controller input sine wave shape; Feasible control is more accurate, has satisfied the instructions for use of a lot of needs high speed positioning accuracy occasions, has enlarged the range of application of motor; Simultaneously; Under the very high situation of motor speed, also can accurately locate, and not need adjustment, improve production efficiency greatly.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Wherein: 1, stator punching; 2, rotor punching; 3, arch breach; 3, air gap; 4, minimal air gap; 5, maximum air gap.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
As stated the shape of rotor punching arch v notch v, arrange, quantity; Can utilize the magnetic field of FInite Element emulation motor; Through rotor punching outer change of shape gas length is changed; Thereby the magnetic field intensity between air gap is also changed thereupon, adjust its variation and make it meet sinusoidal wave the variation, thereby make motor set up sine wave magnetic field.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The rotor punching of a kind of permanent-magnet magnetic resistance motor of the utility model scheme; A plurality of arch breach that its outer has; Make that rotor punching is not to equate with the air gap that stator punching forms everywhere; After the energising, the gas length that electromagnetic wire passes through changes by sine wave, produces and the sinusoidal wave corresponding sine wave magnetic field of motor power.Because the waveform of this sine wave magnetic field and the high fit of controller input sine wave shape; Feasible control is more accurate, has satisfied the instructions for use of a lot of needs high speed positioning accuracy occasions, has enlarged the range of application of motor; Simultaneously; Under the very high situation of motor speed, also can accurately locate, and not need adjustment, improve production efficiency greatly.
Below only be the concrete exemplary applications of the utility model, the protection range of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (2)
1. the rotor punching of a permanent-magnet magnetic resistance motor comprises being positioned at the inner rotor punching of stator punching, it is characterized in that: on the outer of said rotor punching, have a plurality of arch breach to the axle center depression; Said arch breach, rotor punching outer and stator punching are inboard, form an air gap between the three, and the air gap between arch breach and the stator punching inboard is maximum, and the air gap between rotor punching and the stator punching inboard is minimum; When the air gap that said size is separated by passes through at electromagnetic wire, produce and the sinusoidal wave corresponding sine wave magnetic field of motor power.
2. the rotor punching of permanent-magnet magnetic resistance motor according to claim 1 is characterized in that: said arch breach has eight, and is opened in uniform way on the outer of rotor punching, forms a petal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205292328U CN202475055U (en) | 2011-12-17 | 2011-12-17 | Rotor punching sheet for permanent magnet reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205292328U CN202475055U (en) | 2011-12-17 | 2011-12-17 | Rotor punching sheet for permanent magnet reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475055U true CN202475055U (en) | 2012-10-03 |
Family
ID=46923179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205292328U Expired - Lifetime CN202475055U (en) | 2011-12-17 | 2011-12-17 | Rotor punching sheet for permanent magnet reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394519A (en) * | 2011-12-17 | 2012-03-28 | 苏州朗高电机有限公司 | Rotor punching of permanent magnet reluctance motor |
-
2011
- 2011-12-17 CN CN2011205292328U patent/CN202475055U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394519A (en) * | 2011-12-17 | 2012-03-28 | 苏州朗高电机有限公司 | Rotor punching of permanent magnet reluctance motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |