CN106685115A - Permanent magnet synchronous AC servo motor - Google Patents
Permanent magnet synchronous AC servo motor Download PDFInfo
- Publication number
- CN106685115A CN106685115A CN201610593185.0A CN201610593185A CN106685115A CN 106685115 A CN106685115 A CN 106685115A CN 201610593185 A CN201610593185 A CN 201610593185A CN 106685115 A CN106685115 A CN 106685115A
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- motor
- permanent magnet
- motor shaft
- 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
Links
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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
The invention discloses a permanent magnet synchronous AC servo motor including a motor housing, a stator, a rotor, a detection element and a motor shaft. The motor is arranged in the motor housing. The rotor is arranged in an outer layer of the motor shaft. A stator is arranged in an outer layer of the rotor. The detection element is arranged at the tail end of the motor shaft. The detection element is arranged coaxial with the motor shaft. A permanent magnet is nested in the rotor. The stator is provided with a stator tooth socket. A three-phase winding is embedded in the stator socket. A wiring box is also fixed mounted at the upper end of the motor housing. The motor provided by the invention is reasonable in structure, small in size and low in cost. With the polygonal structure of the stator, heat dissipation of the motor is facilitated. Magnetic force distribution is uniform. The detection element can detect the angular position, the displacement and the rotation speed of the motor, so as to provide the absolute position information, the position feedback volume and the speed feedback volume of the rotor. The use effect is improved. At the same time, maintenance and installation are convenient.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of permanent magnet synchronous ac servomotor.
Background technology
DC servo motor was once widely used in CNC feeding servo system, and it has good good speed and turns
Square characteristic, but its complex structure, manufacturing cost is high, volume is big and motor brush easily weares and teares, and diverter can be produced
Spark, the capacity and use occasion for making DC servo motor is restricted.AC servo motor does not have brush and diverter etc. to tie
The shortcoming of structure, and with the development of new power switching device, special IC, computer technology and control algolithm etc.,
Promote the development of AC driving circuit so that the governor control characteristics of AC synchronous sampling is suitable for NC Machine Tools Feeding Serve system
The requirement of system.Modern NC Machine Tool is all inclined to has watched driving, the big substituted DC servo drive of AC synchronous sampling using exchange
Gesture.
Alternating current generator have AC induction motor and ac synchronous motor point, AC induction motor simple structure, capacity be big,
Price is low, is commonly used as the motor of main motion, and permanent magnet synchronous ac servomotor is used as the motor of feed motion.
The content of the invention
It is an object of the invention to provide a kind of rational in infrastructure, small volume, low cost, easy to control, using effect is good forever
Magnetic-synchro AC servo motor.
The present invention is achieved through the following technical solutions：
A kind of permanent magnet synchronous ac servomotor, including motor housing, stator, rotor, detecting element and motor shaft, the motor
Inside the shell is provided with motor shaft, and the motor shaft outer layer is provided with rotor, and the rotor outer layer is provided with stator, and the motor shaft end sets
There is detecting element, the detecting element is coaxially disposed with motor shaft, permanent magnet is inlaid with the rotor, set on the stator
There is stator teeth groove, the stator teeth groove is embedded with three-phase windings, and the motor housing upper end is also installed with rosette.
Further, the rotor is built up by several punchings, and permanent magnet is inlaid with punching.
Further, the stator is built up by several punchings, and punching is in polygonized structure.
Further, the number of pole-pairs of the rotor composition is identical with the number of pole-pairs that stator is constituted.
Further, the permanent magnet is alnico alloy or ferritic alloy or Nd Fe B alloys.
Further, the detecting element is pulse codr.
The invention has the beneficial effects as follows：The electric machine structure that the present invention is gone out is reasonable, small volume, low cost, by stator
Polygonized structure is conducive to the radiating of motor, and magnetic force distribution is uniform, and detecting element can detect angle position, displacement and the rotation of motor
Rotary speed, to provide absolute location information, position feedback quantity and the velocity feedback quantity of rotor, improves using effect, meanwhile,
Safeguard easy for installation.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the profile of the present invention.
Wherein：Motor housing, 2, motor shaft, 3, rotor, 4, stator, 5, detecting element, 6, three-phase windings, 7, rosette.
Specific embodiment
Illustrate below in conjunction with the accompanying drawings to be described further the present invention.
As shown in Figure 1 and 2, a kind of permanent magnet synchronous ac servomotor, including motor housing 1, stator 4, rotor 3, detection unit
Motor shaft 2 is provided with part 5 and motor shaft 2, motor housing 1, the outer layer of motor shaft 2 is provided with rotor 3, and the outer layer of rotor 3 is provided with stator 4,
The end of motor shaft 2 is provided with detecting element 5, and detecting element 5 is coaxially disposed with motor shaft 2, and on rotor 3 permanent magnet is inlaid with, fixed
Son 4 is provided with stator teeth groove, and stator teeth groove is embedded with three-phase windings 6, and the upper end of motor housing 1 is also installed with rosette 7.
In the present embodiment, rotor 3 is built up by several punchings, and permanent magnet is inlaid with punching.
In the present embodiment, stator 4 is built up by several punchings, and punching is in polygonized structure.
In the present embodiment, the number of pole-pairs of the composition of rotor 3 is identical with the number of pole-pairs that stator is constituted.
In the present embodiment, permanent magnet is alnico alloy or ferritic alloy or Nd Fe B alloys.
In the present embodiment, detecting element 5 is pulse codr.
Rationally, small volume, low cost is conducive to motor to the electric machine structure that the present invention is gone out by the polygonized structure of stator
Radiating, magnetic force distribution is uniform, the angle position of the detectable motor of detecting element, displacement and rotary speed, to provide rotor
Absolute location information, position feedback quantity and velocity feedback quantity, improve using effect, meanwhile, safeguard easy for installation.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of permanent magnet synchronous ac servomotor, including motor housing, stator, rotor, detecting element and motor shaft, its feature
It is：Motor shaft is provided with the motor housing, the motor shaft outer layer is provided with rotor, and the rotor outer layer is provided with stator, institute
State motor shaft end and be provided with detecting element, the detecting element is coaxially disposed with motor shaft, and on the rotor permanent magnetic is inlaid with
Ferrum, the stator is provided with stator teeth groove, and the stator teeth groove is embedded with three-phase windings, the also fixed peace in the motor housing upper end
Equipped with rosette.
2. a kind of permanent magnet synchronous ac servomotor according to claim 1, it is characterised in that：The rotor is by several
Punching builds up, and permanent magnet is inlaid with punching.
3. a kind of permanent magnet synchronous ac servomotor according to claim 1, it is characterised in that：The stator is rushed by several
Piece builds up, and punching is in polygonized structure.
4. a kind of permanent magnet synchronous ac servomotor according to claim 1, it is characterised in that：It is extremely right that the rotor is constituted
Number is identical with the number of pole-pairs of stator composition.
5. a kind of permanent magnet synchronous ac servomotor according to claim 1, it is characterised in that：The permanent magnet is aluminum nickel
Cobalt alloy or ferritic alloy or Nd Fe B alloys.
6. a kind of permanent magnet synchronous ac servomotor according to claim 1, it is characterised in that：The detecting element is pulse
Encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593185.0A CN106685115A (en) | 2016-07-26 | 2016-07-26 | Permanent magnet synchronous AC servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593185.0A CN106685115A (en) | 2016-07-26 | 2016-07-26 | Permanent magnet synchronous AC servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685115A true CN106685115A (en) | 2017-05-17 |
Family
ID=58839195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610593185.0A Pending CN106685115A (en) | 2016-07-26 | 2016-07-26 | Permanent magnet synchronous AC servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450423A (en) * | 2020-04-03 | 2020-07-28 | 北京易康医疗科技有限公司 | Radiotherapy accelerator capable of rotating in whole circle and using method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014115A (en) * | 1998-06-16 | 2000-01-14 | Mitsubishi Electric Corp | Action detector for rotating/direct-acting combined motor |
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| CN202034842U (en) * | 2011-05-13 | 2011-11-09 | 广州市佳茂机电有限公司 | Permanent magnet synchronous servo motor for elevator |
| CN205017192U (en) * | 2015-08-13 | 2016-02-03 | 苏州德能电机有限公司 | Synchronous servo motor of high -efficient, energy -saving three -phase |
-
2016
- 2016-07-26 CN CN201610593185.0A patent/CN106685115A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014115A (en) * | 1998-06-16 | 2000-01-14 | Mitsubishi Electric Corp | Action detector for rotating/direct-acting combined motor |
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| CN202034842U (en) * | 2011-05-13 | 2011-11-09 | 广州市佳茂机电有限公司 | Permanent magnet synchronous servo motor for elevator |
| CN205017192U (en) * | 2015-08-13 | 2016-02-03 | 苏州德能电机有限公司 | Synchronous servo motor of high -efficient, energy -saving three -phase |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450423A (en) * | 2020-04-03 | 2020-07-28 | 北京易康医疗科技有限公司 | Radiotherapy accelerator capable of rotating in whole circle and using method thereof |
| CN111450423B (en) * | 2020-04-03 | 2021-07-23 | 山东省肿瘤防治研究院（山东省肿瘤医院） | Radiotherapy accelerator capable of rotating in whole circle and using method thereof |
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Legal Events
| 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 |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |