CN1031439C - Three-phase induction motor - Google Patents
Three-phase induction motor Download PDFInfo
- Publication number
- CN1031439C CN1031439C CN 92101708 CN92101708A CN1031439C CN 1031439 C CN1031439 C CN 1031439C CN 92101708 CN92101708 CN 92101708 CN 92101708 A CN92101708 A CN 92101708A CN 1031439 C CN1031439 C CN 1031439C
- Authority
- CN
- China
- Prior art keywords
- electric conductor
- rotor
- segment structure
- induction type
- type motor
- 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
- 230000006698 induction Effects 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 239000012212 insulator Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 241000233805 Phoenix Species 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000008111 motor development Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The stator of the three-phase induction motor is identical to that of three-phase asynchronous squirrel-cage motor, and the structure of the rotor is iron core formed by stacking silicon steel sheets fixed on the shaft and sheet-shaped conductors sandwiched between the silicon steel sheets, and a plurality of conductors are axially penetrated and uniformly distributed with each other, and a conductive loop formed by the conductors and the sheet-shaped conductors is separated from the loop by an insulator.
Description
The present invention relates to polyphase induction formula asynchronous motor technical field.
As is generally known, phase asynchronous squirrel-cage motor, because simple in structure, low price, manufacturing, use, easy to maintenance, working stability is reliable, has become to use in all motor and popularize maximum a kind of.But phase asynchronous squirrel-cage motor is still poor owing to starting performance, and speed adjusting performance is poor, and no-load loss is big, temperature rise, and the life-span is short ...Though install various protective devices additional, when, the phase failure poor, overload, still burn unavoidably when power supply quality.
Secondly, DC motor, no doubt performance is good, and temperature rise is low, but and stepless speed regulation.But it needs DC power supply, and the direct current supply loss is big, and inconvenience is promoted and a large amount of the use.
From the seventies, permanent magnet motor research has atavism in the world again, why people pay attention to it again, be because permanent magnet motor is energy-conservation up to 25%, (referring to the electric world) magazine 1984 7 phases the 8th page " permanent magnet synchronous motor general situation of development "), but, the fatal shortcoming of permanent magnet motor: can't replenish the energy to the rotor in the running at work.Overload performance is poor, job insecurity, complex structure, manufacturing, maintenance difficult.The permanent magnetic material costliness, difficult popularizing.The raising of the performance of permanent magnet motor and the decline of cost depend on the further development of permanent magnetic material and technology to a great extent.
Based on the ineffective situation of domestic and international motor development, we propose a cover motor fabrication scheme, with developing motor manufacturing technology frontier.
The objective of the invention is to compose motor and abandon its shortcoming with the various advantages of prior art.Make the performance of existing motor reach perfect.
Accompanying drawing 1 is this triphase induction type motor principle assumption diagram.
Accompanying drawing 2 is accompanying drawing 1 cross section structure figure.
Accompanying drawing 3 is surface texture expanded views vertically of accompanying drawing 1 rotor (2).
In accompanying drawing 1, the structure of stator (1) and common three different The step stator structure of squirrel-cage motor is identical.
The invention provides a kind of triphase induction type motor, form by stator (1) and rotor (2), it is characterized in that: rotor (2) is formed by being fixed on the upward axial multi-segment structure that is provided with of axle (5), every segment structure comprises: the iron core (3) that builds up with silicon steel sheet, be distributed on the circumference of iron core (3) and a plurality of electric conductors (4) that wear vertically and be separately positioned on conducting strip (6) on every segment structure two ends, the same electric conductor of conducting strip (6) (4) is electrically connected and forms the galvanic circle on every segment structure, electric conductor in every segment structure (4) number is an even number, and electric conductor (4) is a copper aluminium mixture, is separated and electrically insulated from one another by insulant (7) between adjacent two sections.
Electric conductor (4) cross sectional shape can be sector hole.
The silicon steel sheet punching of casting electric conductor (4) can be open slot.
When cast aluminum rotor (2), be cast with phoenix leaf (8) at rotor (2) two ends, use with the pectinid of doing in the work.
This triphase induction type motor is characterized in that: the number of rotor (2) electric conductor (4) equates with the number of poles of its stator (1).
Operation principle of the present invention is as follows:
As shown in the figure, the motor of test usefulness is a four-pole motor.Send electricity initial, the rotating magnetic field of stator (1) is rotated in a clockwise direction, then the electric conductor (4) of rotor (2) is subjected to the scanning of stator (1) the N utmost point, electric conductor (4) cutting stator (1) magnetic line of force of rotor (2), by the right-hand rule, produce the electric current that inwardly flows in its electric conductor (4), this electric current is located obstructed to insulant (7), turns to conductor piece (6) stream; Constitute at electric conductor (4) and conductor piece (6) and to form eddy current in the galvanic circle; In like manner, also produce the electric current that the direction that differs from one another flows in its excess-three rotor (2) electric conductor (4), account for rule by spiral, electric current should be set up four rotors (2) work magnetic pole in rotor (2) galvanic circle.The rotary pole NSNS of stator (1) is attracting (2) four work of rotor magnetic pole SNSN rotation, sends a telegraph motivation and moves in a clockwise direction.
Outstanding effect of the present invention is:
Loss is little, and temperature rise is low, and the life-span is long, about energy-conservation amplitude big (30%); Simple in structure, material is general, processing, manufacturing, use, easy to maintenance, and cost is low; Working stability is reliable, not influenced by electrical network, voltage fluctuation, but phase failure operate as normal must not install the heat protection additional, is convenient to promote.Frequency conversion can be carried out stepless speed regulation, and the scope of application is wide, causes this, and it is perfect that motor performance has reached.
Claims (4)
1. triphase induction type motor, form by stator (1) and rotor (2), it is characterized in that: rotor (2) is formed by being fixed on the upward axial multi-segment structure that is provided with of axle (5), every segment structure comprises: the iron core (3) that builds up with silicon steel sheet, be distributed on the circumference of iron core (3) and a plurality of electric conductors (4) that wear vertically and be separately positioned on conducting strip (6) on every segment structure two ends, the same electric conductor of conducting strip (6) (4) is electrically connected and forms the galvanic circle on every segment structure, electric conductor in every segment structure (4) number is an even number, and electric conductor (4) is a copper aluminium mixture, is separated and electrically insulated from one another by insulant (7) between the adjacent two-stage structure.
2. triphase induction type motor according to claim 1 is characterized in that: the cross section of electric conductor (4) is a covering of the fan.
3. triphase induction type motor according to claim 1 is characterized in that: the silicon steel sheet punching of electric conductor (4) is an open slot.
4. triphase induction type motor according to claim 1 is characterized in that: the number of the electric conductor (4) of copper aluminium hybrid conductive body (4) on the arbitrary cross section of rotor (2) equates with its stator (1) number of poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101708 CN1031439C (en) | 1992-03-18 | 1992-03-18 | Three-phase induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101708 CN1031439C (en) | 1992-03-18 | 1992-03-18 | Three-phase induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1076561A CN1076561A (en) | 1993-09-22 |
| CN1031439C true CN1031439C (en) | 1996-03-27 |
Family
ID=4939267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92101708 Expired - Fee Related CN1031439C (en) | 1992-03-18 | 1992-03-18 | Three-phase induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031439C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342626C (en) * | 2001-12-21 | 2007-10-10 | 德昌电机股份有限公司 | Brushless dc motor |
-
1992
- 1992-03-18 CN CN 92101708 patent/CN1031439C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342626C (en) * | 2001-12-21 | 2007-10-10 | 德昌电机股份有限公司 | Brushless dc motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1076561A (en) | 1993-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |