CN1317810C - Frequency conversion electrical motor - Google Patents
Frequency conversion electrical motor Download PDFInfo
- Publication number
- CN1317810C CN1317810C CNB031240720A CN03124072A CN1317810C CN 1317810 C CN1317810 C CN 1317810C CN B031240720 A CNB031240720 A CN B031240720A CN 03124072 A CN03124072 A CN 03124072A CN 1317810 C CN1317810 C CN 1317810C
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- CN
- China
- Prior art keywords
- rotor
- motor
- stator
- cup
- frequency
- 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 - Lifetime
Links
- 238000006243 chemical reaction Methods 0.000 title abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 25
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 241000239290 Araneae Species 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention relates to a frequency conversion motor which aims to solve a technical problem of providing a frequency conversion motor with an AC asynchronous motor and an AC generator mutually sheathed in a composite mode. The motor has the advantages of compact structure, small volume, light weight, little material consumption, low manufacture cost and convenient operation. In order to solve the problem, the present invention has a technical scheme that a motor stator is fixed in a casing, and a cup-shaped rotor which is similar to a cup is arranged in the motor stator; a rotor cage is formed by distributing cage guide strips on the outer surface of the cup-shaped rotor, and the rotor cage and the motor stator form an AC asynchronous motor; rotor magnetic steel which is composed of rare earth permanent magnetic poles is uniformly arranged on the inner surface of the cup-shaped rotor, the rotor magnetic steel are used as an outer rotor of an AC generator, and a generator inner stator which is embedded with a winding is fixed in the outer rotor; the cup-shaped rotor is connected with fixed shafts which are fixed in shaft holes of a rear end cover and a front end cover through a rotor bracket and a bearing which are arranged on both ends of the cup-shaped rotor. The present invention can be used as a power supply for providing three-phase low voltage power (including medium frequency and power frequency).
Description
Technical field
The present invention relates to motor, especially a kind of variable-frequency motor.As the three-phase low tension power-supply device of (comprising intermediate frequency, power frequency) is provided, as providing power for dress immersible concrete vibrator in the motor.
Background technology
At present providing the power-supply device of three-phase low tension both at home and abroad generally all is the frequency conversion unit, send three-phase intermediate frequency low tension with a coaxial configuration three-phase of drive or single-phase intermediate frequency low voltage generator during promptly by a three-phase or monopole asynchronous motor energising running, so be called unit.Its shortcoming is that volume is big, Heavy Weight, consumptive material is many, price is expensive, use is inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is: the mutually compound variable-frequency motor of pressing cover of a kind of AC asynchronous motor and alternating current generator is provided, and this electric machine structure compactness, volume is little, in light weight, consumptive material is few, low cost of manufacture, easy to use.
The technical solution adopted in the present invention is: variable-frequency motor has casing, rear end cap, front end housing, motor cable, its design feature is at the casing internal fixation motor stator to be arranged, motor stator is built-in with the cup-shaped rotor of a likeness in form cup, its outer surface is distributed with the mouse cage sliver and forms the rotor mouse cage, constitutes an AC asynchronous motor with motor stator; At the even rotor magnetic steel that distributes and constitute of cup-shaped rotor inner surface by the rare earth permanent magnet magnetic pole, external rotor as alternating current generator, one of its internal fixation be embedded with winding the generator internal stator, the rotor field spider of cup-shaped rotor by being contained in its two ends and bearing be fixed on rear end cap and be connected with fixed axis in the front end housing axis hole.
The number of pole-pairs of the equally distributed rare earth permanent magnet magnetic pole of described cup-shaped rotor inner surface becomes the multiple relation with the number of pole-pairs of AC asynchronous motor stator winding.
Three phase windings of the stator of described AC asynchronous motor are joined the polyphase windings of the internal stator of alternating current generator, also can join single-phase winding.
The single-phase winding of the stator of described AC asynchronous motor is joined the polyphase windings of the internal stator of alternating current generator, also can join single-phase winding.
The frequency f of described alternating current generator
2=f
1* P
2/ P
1* (1-S); F in the formula
1Be the operating frequency of motor, P
1Be motor stator number of pole-pairs, P
2Be the number of pole-pairs of generator external rotor, S is the revolutional slip of AC asynchronous motor.
The invention has the beneficial effects as follows: the present invention overlaps from the appearance just asynchronous motor with compound mutually the pressing of AC asynchronous motor and alternating current generator, and its function is the same with the frequency conversion unit, when asynchronous motor energising running, just can obtain the three-phase low tension simultaneously.Compact conformation, volume are little, in light weight, in the past must two frequency conversion unit that the people could remove movingly, and the present invention only people of need just can lift; Consumable quantity is few, and manufacturing cost is with regard to corresponding reduction; Easy to use, safe and reliable to operation.
Description of drawings
Fig. 1 is a main cutaway view of the present invention.
Embodiment
As shown in the figure, present embodiment comprises rear end cap 1, motor cable 2, AC asynchronous motor stator 3 (hereinafter to be referred as motor stator), cup-shaped rotor 4, mouse cage sliver 5, rotor magnetic steel 6, alternating current generator internal stator 7 (hereinafter to be referred as the generator internal stator), front end housing 8, bearing 9,12, rotating shaft 10, rotor field spider 11, fan 13 and casing 14.Rotor magnetic steel 6 material selection rare earth permanent magnets wherein.
Motor stator 3 is fixed on the inwall of casing 14, one cup-shaped rotor 4 that can rotate and be similar to cup in stator is arranged in it, the outer surface of cup-shaped rotor is inlayed mouse cage sliver 5 equably to form the rotor mouse cage, and the rotor mouse cage cooperates AC asynchronous motor of formation with motor stator 3.Inner surface at cup-shaped rotor 4 then distributes equably with the rotor magnetic steel 6 of rare earth permanent magnet magnetic pole formation, it is as the external rotor of alternating current generator, have the generator internal stator 7 that builds up with electrical sheet of winding one of cup-shaped rotor 4 internal fixation, this internal stator and above-mentioned external rotor be common to constitute an alternating current generator.The fixed axis 10 of cup-shaped rotor 4 is located on the axial line of generator internal stator 7, is connected with fixed axis 10 with bearing 9,12 by the rotor field spider 11 that is contained in cup-shaped rotor 4 two ends, in the axis hole of the two ends of fixed axis 10 fixing insertion rear end cap 1 and front end housing 8.
The number of pole-pairs of the equally distributed rare earth permanent magnet magnetic pole of cup-shaped rotor 4 inner surfaces becomes the multiple relation with the number of pole-pairs of AC asynchronous motor stator 3 windings.
Three phase windings of the stator 3 of AC asynchronous motor can be joined the heterogeneous or single-phase winding of three-phase of the internal stator 7 of alternating current generator.
The single-phase winding of the stator 3 of AC asynchronous motor also can be joined the heterogeneous or single-phase winding of three-phase of the internal stator 7 of alternating current generator.
The frequency f of alternating current generator
2=f
1* P
2/ P
1* (1-S); F in the formula
1Be the operating frequency of motor, P
1Be motor stator number of pole-pairs, P
2Be the number of pole-pairs of generator external rotor, S is the revolutional slip of AC asynchronous motor.
Claims (7)
1. variable-frequency motor, have casing (14), rear end cap (1), front end housing (8), motor cable (2), it is characterized in that: motor stator (3) is arranged at casing (14) internal fixation, motor stator is built-in with the cup-shaped rotor (4) of a likeness in form cup, its outer surface is distributed with mouse cage sliver (5) and forms the rotor mouse cage, constitutes an AC asynchronous motor with motor stator (3); At the even rotor magnetic steel (6) that distributes and constitute of cup-shaped rotor (4) inner surface by the rare earth permanent magnet magnetic pole, external rotor as alternating current generator, one of its internal fixation be embedded with winding generator internal stator (7), the rotor field spider (11) of cup-shaped rotor (4) by being contained in its two ends and bearing (9,12) be fixed on rear end cap (1) and be connected with fixed axis (10) in front end housing (8) axis hole.
2. variable-frequency motor according to claim 1 is characterized in that: the number of pole-pairs of the equally distributed rare earth permanent magnet magnetic pole of described cup-shaped rotor (4) inner surface becomes the multiple relation with the number of pole-pairs of AC asynchronous motor stator (3) winding.
3. variable-frequency motor according to claim 1 and 2 is characterized in that: three phase windings of the stator of described AC asynchronous motor (3) are joined the polyphase windings of the internal stator (7) of alternating current generator.
4. variable-frequency motor according to claim 1 and 2 is characterized in that: three phase windings of the stator of described AC asynchronous motor (3) are joined the single-phase winding of the internal stator (7) of alternating current generator.
5. variable-frequency motor according to claim 1 and 2 is characterized in that: the single-phase winding of the stator of described AC asynchronous motor (3) is joined the polyphase windings of the internal stator (7) of alternating current generator.
6. variable-frequency motor according to claim 1 and 2 is characterized in that: the single-phase winding of the stator of described AC asynchronous motor (3) is joined the single-phase winding of the internal stator (7) of alternating current generator.
7. variable-frequency motor according to claim 1 and 2 is characterized in that: the frequency f of described alternating current generator
2=f
1* P
2/ P
1* (1-S); F in the formula
1Be the operating frequency of motor, P
1Be motor stator number of pole-pairs, P
2Be the number of pole-pairs of generator external rotor, S is the revolutional slip of AC asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031240720A CN1317810C (en) | 2003-04-29 | 2003-04-29 | Frequency conversion electrical motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031240720A CN1317810C (en) | 2003-04-29 | 2003-04-29 | Frequency conversion electrical motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1445916A CN1445916A (en) | 2003-10-01 |
| CN1317810C true CN1317810C (en) | 2007-05-23 |
Family
ID=27815035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031240720A Expired - Lifetime CN1317810C (en) | 2003-04-29 | 2003-04-29 | Frequency conversion electrical motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1317810C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124491A1 (en) * | 2008-04-09 | 2009-10-15 | Wang Zhiping | A motor with auxiliary funtion of power generation |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299567B (en) * | 2008-06-17 | 2010-04-21 | 东南大学 | Non-coupled electric stepless gear motor body topological structure |
| CN102195421A (en) * | 2011-04-22 | 2011-09-21 | 刘荣甫 | Multistage radial magnetic field motor |
| JP6393916B2 (en) | 2014-02-20 | 2018-09-26 | 北田回転機関合同会社 | Electric rotating machine |
| JP5750682B1 (en) * | 2014-02-20 | 2015-07-22 | 北田 保雄 | Electric rotating machine |
| CN109450205B (en) * | 2019-01-08 | 2024-06-11 | 中铁电气化局集团有限公司 | AC motor for converting three-phase symmetrical AC into single-phase AC |
| CN114614644B (en) * | 2022-03-24 | 2024-05-24 | 西安交通大学 | Rotary frequency tripling electric energy conversion device and working method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479679Y (en) * | 2001-04-16 | 2002-02-27 | 师围田 | Generating and electric integral machine for power for cars and ships |
| CN2632935Y (en) * | 2003-04-29 | 2004-08-11 | 程宏 | Frequency variable motor |
-
2003
- 2003-04-29 CN CNB031240720A patent/CN1317810C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479679Y (en) * | 2001-04-16 | 2002-02-27 | 师围田 | Generating and electric integral machine for power for cars and ships |
| CN2632935Y (en) * | 2003-04-29 | 2004-08-11 | 程宏 | Frequency variable motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124491A1 (en) * | 2008-04-09 | 2009-10-15 | Wang Zhiping | A motor with auxiliary funtion of power generation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1445916A (en) | 2003-10-01 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU MICRO-PHOTOELECTRON CO., LTD. Free format text: FORMER OWNER: CHENG HONG Effective date: 20100419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310002 ROOM 701, NO.1, LINGSHOUSI LANE, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 311100 NO.512, HONGFENG ROAD, YUHANG ECONOMIC DEVELOPMENT ZONE, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100419 Address after: 311100 No. 512 Hongfeng Road, Yuhang Economic Development Zone, Zhejiang, Hangzhou, China Patentee after: HANGZHOU WEIGUANG ELECTRONIC Co.,Ltd. Address before: 310002, room 1, 701 Temple Lane, Hangzhou, Zhejiang, Lingshou Patentee before: Cheng Hong |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 311100 No. 365 Zhong Xing Road, Yuhang Economic Development Zone, Hangzhou, Zhejiang Patentee after: HANGZHOU WEIGUANG ELECTRONIC Co.,Ltd. Address before: 311100 No. 512 Hongfeng Road, Yuhang Economic Development Zone, Zhejiang, Hangzhou, China Patentee before: HANGZHOU WEIGUANG ELECTRONIC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| CX01 | Expiry of patent term |