CN204304739U - A kind of digital motor - Google Patents
A kind of digital motor Download PDFInfo
- Publication number
- CN204304739U CN204304739U CN201520007303.6U CN201520007303U CN204304739U CN 204304739 U CN204304739 U CN 204304739U CN 201520007303 U CN201520007303 U CN 201520007303U CN 204304739 U CN204304739 U CN 204304739U
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- outer rotor
- internal rotor
- stator
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to power and control technology field, a kind of digital motor specifically, comprise a stator and interior, outer two rotors, internal rotor is inlaid in outer rotor inside, cavity is provided with between internal rotor and outer rotor, phase transformation magnetic material is loaded in cavity between internal rotor and outer rotor, stator is arranged at outer rotor outside, internal rotor connects motor output shaft, the rotating excitation field that motor is first produced by stator after powered up drives outer rotor to rotate, the rotating excitation field produced by outer rotor again drives internal rotor to rotate, the rotation of final drive motor shaft output kinetic energy, internal rotor produces induction field while rotation, interior, in cavity between outer rotor, load phase metamagnetic materials.This motor has Limited Current, controls temperature rise, soft biography (opening) is dynamic, overload protection and energy-efficient; the real time execution of energy accurate feedback load is dynamic, conveniently arranges the fault alarm of motor, operation, circulation timei; shift length, the automation functions such as direction of rotation.
Description
[technical field]
The utility model relates to power and control technology field, one is applicable to traditional middle and small motor specifically, be specially adapted to that motor frequent starting, load variation are comparatively large, stall moment of torsion is higher, locked rotor current is controlled, need to carry out the digital motor of flexibility of use occasion of equipment displacement, automation, integrated system operation.
[background technology]
Threephase asynchronous machine is different according to rotor structure, can be divided into the induction machine of cage rotor and wound rotor.Squirrel-cage motor structure is simple, reliable, lightweight, low price and efficient energy-saving, is widely used, and its major defect is speed governing difficulty; The rotor of wound motor is the same with stator is provided with three-phase windings, and be connected with outside rheostat by slip ring, brush, can be adjusted starting performance and the rotating speed of motor by standardsizing rheostat resistance, its major defect is the higher and troublesome maintenance of electric machine structure complexity, device rapid wear, price.The application of threephase asynchronous machine traditional at present, mainly adopts the electric control methods such as overcurrent protection, star delta reduced-voltage starting, voltage variable frequency starting.Traditional control method also exists circuit complexity, accessory is numerous, maintenance cost is high problem.Because conventional motors function singleness, technology content are lower, do not possess starting protection, overload protection, signals collecting and feedback function, product is difficult to participate in high-end market competition.Traditional motor technology is difficult to the growth requirement adapting to market.
[summary of the invention]
The purpose of this utility model is the problems existed to solve conventional motors, for the difficult problem solving product up-gradation, a kind of " stator two rotor " structure adopting embedded " outer cage rotor+interior cage rotor " or " outer p-m rotor+interior cage rotor " of design, for digital motor provides good technological innovation scheme.
To achieve these goals, a kind of digital motor is provided, comprise a stator and interior, outer two rotors, internal rotor is inlaid in outer rotor inside, cavity is provided with between internal rotor and outer rotor, phase transformation magnetic material is loaded in cavity between internal rotor and outer rotor, stator is arranged at outer rotor outside, internal rotor connects motor output shaft, the rotating excitation field that motor is first produced by stator after powered up drives outer rotor to rotate, the rotating excitation field produced by outer rotor again drives internal rotor to rotate, the rotation of final drive motor shaft output kinetic energy, internal rotor produces induction field while rotation, in, namely outer rotor automatically adjusts magnetic phase and forms closed magnetic circuit, due to interior, in cavity between outer rotor, load phase metamagnetic materials, motor is made to produce the internal rotor flexibility driving force of outer rotor when being energized and running, the flexibility finally realizing motor shaft power exports.
Described motor concrete structure is as follows:
Motor shaft penetrates internal rotor fixed installation, composition internal rotor assembly, bearing and outside framework oil seal load rotor bearing end plate, composition rotor bearing end board assembly, internal rotor assembly penetrates outer rotor, outer rotor two ends fixed installation rotor bearing end board assembly, phase transformation magnetic material is loaded, composition rotor part in the gap of inner and outer rotors;
The stator coil of coiling embeds stator core, composition stator component;
Bearing loads drive end bearing bracket and rear end cap, composition electric machine casing Cover members;
Shielded signal line connects grating encoder and light current terminal plate, composition sensor element;
Stator component loads electric machine casing, shielded signal line loads electric machine casing through stator core wire casing, rotor part pierces into stator component, electric machine casing Cover members packs into motor shaft by front and back position, is fixed on electric machine casing both ends of the surface, grating encoder is fixed on back end cover for motor through motor shaft, light current terminal plate is arranged in connection box for motor, grating encoder is connected with shielded signal line with light current terminal plate, fan blade loads and is fixed on motor shaft rear portion, rear air cover is fixedly installed in back end cover for motor, link lid, is assembled into machine product.
Described phase metamagnetic materials is as flexible power transmission medium body, and transmission medium body is enclosed in the gap of inner and outer rotors.
Described internal rotor assembly is connected with outer rotor bearing.
Described outer rotor is cage rotor or p-m rotor, and internal rotor is cage rotor.
Described motor has startup and overload protection; under the condition of 2 times of rated input powers, 55Kp/cm2 phase-change material shear stress, 30N/m stall moment of torsion, outer rotor idle running and internal rotor stall, start peak value and overload current all lower than the Rated motor electric current of 2 times.
The utility model compared with the existing technology, its advantage is: the utility model adopts " the stator two rotor " structure of embedded " outer cage rotor+interior cage rotor " or " outer p-m rotor+interior cage rotor ", make motor successively produce the twice asynchronous rotation magnetic field in stator excitation field--outer rotor magnetic field--internal rotor magnetic field after powered up, thus drive internal rotor and motor shaft to rotate and output kinetic energy; Due in the cavity between inner and outer rotors, load the phase metamagnetic materials pressing the modulation of different magnetic field density requirements, when motor is run, outer rotor produces soft drive power to internal rotor, utilize and change the characteristic of phase metamagnetic materials, motor can be made automatically to have Limited Current, control temperature rise, flexibility opens that (biographys) is moved, overload protection and energy-efficient product efficacy; Motor signal source adopts built-in high-resolution position coder, the real time execution of energy accurate feedback load is dynamic, by host computer and standard electrical control system, the automatic control function such as fault alarm, running time, circulation timei, shift length, direction of rotation of motor can be set easily.
[accompanying drawing explanation]
Fig. 1 is front view of the present utility model;
Fig. 2 is that of the present utility model facing cuts open figure;
In figure: 1. motor shaft 2. drive end bearing bracket 3. terminal box 4. forceful electric power wiring pile 5. outside framework oil seal 6. light current terminal plate 7. motor casing 8. rear end cap 9. signal cable 10. fan blade 11. rear air cover 12. grating encoder 13. bearing 14. stator coil 15. outer rotor 16. internal rotor 17. stator core 18. phase metamagnetic materials 19. rotor bearing end plate;
Specify Fig. 2 as Figure of abstract of the present utility model.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model comprises and forms machine product by motor shaft, drive end bearing bracket, terminal box, forceful electric power wiring pile, outside framework oil seal, light current terminal plate, motor casing, rear end cap, shielded signal line, fan blade, rear air cover, grating encoder, bearing, stator coil, outer rotor, internal rotor, stator core, phase metamagnetic materials, rotor bearing end plate and corresponding spare and accessory parts.
Assembling process is specially:
A. motor shaft is penetrated internal rotor fixed installation, composition internal rotor assembly; Bearing and outside framework oil seal load rotor bearing end plate, composition rotor bearing end board assembly; Internal rotor assembly penetrates outer rotor, outer rotor two ends fixed installation rotor bearing end board assembly; Phase transformation magnetic material is loaded, composition rotor part in the gap of inner and outer rotors;
B. the stator coil of coiling embeds stator core, composition stator component;
C. bearing loads drive end bearing bracket and rear end cap, composition electric machine casing Cover members;
D. shielded signal line connects grating encoder and light current terminal plate, composition sensor element;
E. complete machine assembling: stator component loads electric machine casing, shielded signal line loads electric machine casing through stator core wire casing, rotor part pierces into stator component, electric machine casing Cover members packs into motor shaft by front and back position, be fixed on electric machine casing both ends of the surface, grating encoder is fixed on back end cover for motor through motor shaft, light current terminal plate is arranged in connection box for motor, grating encoder is connected with shielded signal line with light current terminal plate, fan blade loads and is fixed on motor shaft rear portion, rear air cover is fixedly installed in back end cover for motor, link lid, be assembled into machine product.
Wherein digital motor is Embedded Double rotor structure, Embedded Double rotor structure is outer cage rotor and interior cage rotor structure or outer p-m rotor and interior cage rotor structure, the rotor part of motor is made up of inner and outer rotors, internal rotor is inlaid in position, outer rotor inner space, internal rotor assembly is connected with outer rotor bearing, phase metamagnetic materials is as flexible power transmission medium body, and transmission medium body is enclosed in the gap of inner and outer rotors.
Claims (6)
1. a digital motor, comprise a stator and interior, outer two rotors, it is characterized in that internal rotor is inlaid in outer rotor inside, cavity is provided with between internal rotor and outer rotor, phase transformation magnetic material is loaded in cavity between internal rotor and outer rotor, stator is arranged at outer rotor outside, internal rotor connects motor output shaft, the rotating excitation field that motor is first produced by stator after powered up drives outer rotor to rotate, the rotating excitation field produced by outer rotor again drives internal rotor to rotate, the rotation of final drive motor shaft output kinetic energy, internal rotor produces induction field while rotation, in, namely outer rotor automatically adjusts magnetic phase and forms closed magnetic circuit, due to interior, in cavity between outer rotor, load phase metamagnetic materials, motor is made to produce the internal rotor flexibility driving force of outer rotor when being energized and running, the flexibility finally realizing motor shaft power exports.
2. a kind of digital motor as claimed in claim 1, it is characterized in that motor concrete structure is as follows: motor shaft penetrates internal rotor fixed installation, composition internal rotor assembly, bearing and outside framework oil seal load rotor bearing end plate, composition rotor bearing end board assembly, internal rotor assembly penetrates outer rotor, outer rotor two ends fixed installation rotor bearing end board assembly, loads phase transformation magnetic material, composition rotor part in the gap of inner and outer rotors;
The stator coil of coiling embeds stator core, composition stator component;
Bearing loads drive end bearing bracket and rear end cap, composition electric machine casing Cover members;
Shielded signal line connects grating encoder and light current terminal plate, composition sensor element;
Stator component loads electric machine casing, shielded signal line loads electric machine casing through stator core wire casing, rotor part pierces into stator component, electric machine casing Cover members packs into motor shaft by front and back position, is fixed on electric machine casing both ends of the surface, grating encoder is fixed on back end cover for motor through motor shaft, light current terminal plate is arranged in connection box for motor, grating encoder is connected with shielded signal line with light current terminal plate, fan blade loads and is fixed on motor shaft rear portion, rear air cover is fixedly installed in back end cover for motor, link lid, is assembled into machine product.
3. a kind of digital motor as claimed in claim 1, it is characterized in that described phase metamagnetic materials is as flexible power transmission medium body, transmission medium body is enclosed in the gap of inner and outer rotors.
4. a kind of digital motor as claimed in claim 1, is characterized in that described internal rotor assembly is connected with outer rotor bearing.
5. a kind of digital motor as claimed in claim 1, it is characterized in that described outer rotor is cage rotor or p-m rotor, internal rotor is cage rotor.
6. a kind of digital motor as claimed in claim 1, is characterized in that described motor has startup and overload protection, at 2 times of rated input powers, 55Kp/cm
2under the condition of the idle running of phase-change material shear stress, 30N/m stall moment of torsion, outer rotor and internal rotor stall, startup peak value and overload current are all lower than the Rated motor electric current of 2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007303.6U CN204304739U (en) | 2015-01-05 | 2015-01-05 | A kind of digital motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007303.6U CN204304739U (en) | 2015-01-05 | 2015-01-05 | A kind of digital motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304739U true CN204304739U (en) | 2015-04-29 |
Family
ID=53110246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007303.6U Expired - Fee Related CN204304739U (en) | 2015-01-05 | 2015-01-05 | A kind of digital motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506001A (en) * | 2015-01-05 | 2015-04-08 | 上海朗汉传动科技有限公司 | Digital motor |
-
2015
- 2015-01-05 CN CN201520007303.6U patent/CN204304739U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506001A (en) * | 2015-01-05 | 2015-04-08 | 上海朗汉传动科技有限公司 | Digital motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9667126B2 (en) | Motor | |
| CN202978667U (en) | Variable-frequency transformer | |
| CN203368290U (en) | Integrated disc type switch reluctance type electromagnetic speed-regulating motor | |
| CN204304739U (en) | A kind of digital motor | |
| CN104506001A (en) | Digital motor | |
| CN203368291U (en) | Integrated disc type permanent-magnetic speed-regulating motor | |
| CN104767331B (en) | A kind of movable stator formula is from speed governing magneto | |
| CN201263116Y (en) | High-efficiency energy-saving rare-earth permanent magnet direct drive device | |
| CN101900364A (en) | DC frequency conversion range hood | |
| CN201146479Y (en) | Starting device for brushless double-feeding motor | |
| CN203423553U (en) | Electric tool with reliable insulation performance | |
| CN215817968U (en) | Small-sized DC motor | |
| CN204237450U (en) | Hoisting crane translation driving device | |
| CN204794611U (en) | Electric motor rotor with flexible transmission function | |
| CN104767322B (en) | A kind of motor speed control device being controlled rotating speed by the adjustment magnetic line of force | |
| CN204012962U (en) | A kind of asynchronous voltage and frequency motor | |
| CN201274429Y (en) | Motor special for oil pump | |
| CN2181768Y (en) | AC variable speed motor | |
| CN207134940U (en) | The electric machine control system that a kind of power-assisted starts | |
| CN204316295U (en) | Pump speed governing three-phase permanent magnet synchronous motor | |
| CN214256088U (en) | Chain saw adopting single-phase switch reluctance motor | |
| CN212231214U (en) | Aeroengine electric starter | |
| CN103001453B (en) | Frequency conversion transformer | |
| CN204886540U (en) | Simple and easy type variable speed dynamo | |
| CN204597740U (en) | A kind of movable stator formula is from speed governing magneto |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20210105 |