CN105262299A - Frequency conversion three-phase asynchronous motor - Google Patents
Frequency conversion three-phase asynchronous motor Download PDFInfo
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- CN105262299A CN105262299A CN201510775013.0A CN201510775013A CN105262299A CN 105262299 A CN105262299 A CN 105262299A CN 201510775013 A CN201510775013 A CN 201510775013A CN 105262299 A CN105262299 A CN 105262299A
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Abstract
The invention relates to the technical field of motors and provides a frequency conversion three-phase asynchronous motor. The frequency conversion three-phase asynchronous motor comprises a rotor, a stator and a frequency conversion speed control mechanism. The rotor comprises a first rotor and a second rotor which are symmetrically connected. The stator is positioned outside the rotor, and one end of the stator is connected with an end cover. The end cover is provided with a bearing cap. Two ends of the rotor are connected with rotating shafts. One side, connected with the rotating shaft, of the rotor is provided with a fan. The fan is externally provided with a cover housing. The covering housing is fixed on the stator. The frequency conversion speed control mechanism comprises a first frequency converter, a second frequency converter, a first three-phase alternating current power grid, a second three-phase alternating current power grid, and a control device which controls the first frequency converter and the second frequency converter. The stator is connected with the first three-phase alternating current power grid through the first frequency converter. The rotor is connected with the second three-phase alternating current power grid through the second frequency converter. Therefore, the frequency conversion performance of the three-phase asynchronous motor can be improved.
Description
Technical field
The present invention relates to motor technology field, particularly relate to a kind of frequency-changing three-phase asynchronous motor.
Background technology
Existing threephase asynchronous all adopts frequency conversion type speed adjusting gear, but existing frequency conversion type threephase asynchronous easily produces covibration, thus the normal use of impact.
Therefore, the technical problem of the frequency conversion poor-performing of threephase asynchronous of the prior art.
Summary of the invention
The present invention, by providing a kind of frequency-changing three-phase asynchronous motor, solves the technical problem of the frequency conversion poor-performing of threephase asynchronous in prior art, and then achieves the technique effect of the frequency conversion performance that can improve this threephase asynchronous.
In order to solve the problems of the technologies described above, the technical scheme of the embodiment of the present invention is as follows:
A kind of frequency-changing three-phase asynchronous motor, comprise rotor, stator and frequency variable speed-adjusting mechanism, described rotor comprises the first rotor and second rotor of symmetrical connection, described stator is positioned at outside rotor, stator one end connects end cap, end cap arranges bearing cap, described two ends of rotor is connected with rotating shaft, the side of rotor connection rotating shaft is provided with fan, case is had outside fan, and described case is fixed on described stator, described frequency variable speed-adjusting mechanism comprises the first frequency converter, second frequency converter, first three-phase alternating current electrical network and the second three-phase alternating current electrical network, and control the control device of the first frequency converter and the second frequency converter, described stator is connected with the first three-phase alternating current electrical network by the first frequency converter, described rotor is connected with described second three-phase alternating current electrical network by the second frequency converter.
Further, described case is provided with ventilation hole.
Further, described the first rotor is connected by connecting portion with the second rotor.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
Owing to adopting rotor in this frequency-changing three-phase asynchronous motor, stator and frequency variable speed-adjusting mechanism, this rotor comprises the first rotor and second rotor of symmetrical connection, this stator is positioned at outside rotor, stator one end connects end cap, end cap arranges bearing cap, this two ends of rotor connection rotating shaft, rotor side is provided with fan, case is had outside fan, this case is fixed on stator, frequency variable speed-adjusting mechanism comprises the first frequency converter, second frequency converter, first three-phase alternating current electrical network and the second three-phase alternating current electrical network, and control the control device of the first frequency converter and the second frequency converter, stator is connected with the first three-phase alternating current electrical network by the first frequency converter, rotor is connected with described second three-phase alternating current electrical network by the second frequency converter, solve the technical problem of the frequency conversion poor-performing of threephase asynchronous in prior art, and then achieve the technique effect of the frequency conversion performance that can improve threephase asynchronous.
Accompanying drawing explanation
Fig. 1 is the module diagram of frequency-changing three-phase asynchronous motor in the embodiment of the present invention.
Embodiment
The embodiment of the present invention, by providing a kind of frequency-changing three-phase asynchronous motor, solves the technical problem of the frequency conversion poor-performing of threephase asynchronous in prior art, and then achieves the technique effect of the frequency conversion performance that can improve this threephase asynchronous.
In order to solve the problems of the technologies described above, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
Embodiments provide a kind of frequency-changing three-phase asynchronous motor, as shown in Figure 1, this threephase asynchronous comprises rotor 10, stator 20 and frequency variable speed-adjusting mechanism, this rotor 10 comprises the first rotor 101 and second rotor 102 of symmetrical connection, this stator 20 is positioned at outside this rotor 10, this stator 20 one end connects end cap 201, end cap 201 is arranged bearing cap 202, this rotor 10 two ends connection rotating shaft 103, 104, the side of rotor 10 connection rotating shaft 103 is provided with fan 105, this fan 105 is outside equipped with case 106, this case 106 is fixed on stator 20, this frequency variable speed-adjusting mechanism comprises the first frequency converter 301, second frequency converter 302, first three-phase alternating current electrical network 303 and the second three-phase alternating current electrical network 304, and control the control device 305 of the first frequency converter 301 and the second frequency converter 302, this stator 20 is connected with the first three-phase alternating current electrical network 303 by the first frequency converter 301, this rotor 10 is connected with the second three-phase alternating current electrical network 304 by the second frequency converter 302, the regulating and controlling to this frequency variable speed-adjusting mechanism can be realized.This first rotor 101 is connected by the connecting portion arranged on opposite sides with the second rotor 102.
Easily producing electromagnetic noise, electric current is unstable, rotor loss is large technical problem to overcome existing motor, adopt two joint rotors, the first rotor and the second rotor, and this two joints rotor being connected by the connector on relative two sides, avoids rotor loss.
The fan, case etc. of above-mentioned employing, can effectively dispel the heat.
Above-mentionedly all facilitation is played to the frequency conversion performance of this threephase asynchronous, thus improve frequency conversion performance.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. a frequency-changing three-phase asynchronous motor, it is characterized in that, comprise rotor, stator and frequency variable speed-adjusting mechanism, described rotor comprises the first rotor and second rotor of symmetrical connection, described stator is positioned at outside rotor, stator one end connects end cap, end cap arranges bearing cap, described two ends of rotor is connected with rotating shaft, the side of rotor connection rotating shaft is provided with fan, case is had outside fan, and described case is fixed on described stator, described frequency variable speed-adjusting mechanism comprises the first frequency converter, second frequency converter, first three-phase alternating current electrical network and the second three-phase alternating current electrical network, and control the control device of the first frequency converter and the second frequency converter, described stator is connected with the first three-phase alternating current electrical network by the first frequency converter, described rotor is connected with described second three-phase alternating current electrical network by the second frequency converter.
2. frequency-changing three-phase asynchronous motor according to claim 1, is characterized in that, described case is provided with ventilation hole.
3. frequency-changing three-phase asynchronous motor according to claim 1, is characterized in that, described the first rotor is connected by connecting portion with the second rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775013.0A CN105262299A (en) | 2015-11-13 | 2015-11-13 | Frequency conversion three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775013.0A CN105262299A (en) | 2015-11-13 | 2015-11-13 | Frequency conversion three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105262299A true CN105262299A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510775013.0A Pending CN105262299A (en) | 2015-11-13 | 2015-11-13 | Frequency conversion three-phase asynchronous motor |
Country Status (1)
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| CN (1) | CN105262299A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382560A (en) * | 2001-02-28 | 2002-12-04 | 株式会社日立制作所 | Machine tool |
| CN2662524Y (en) * | 2003-11-27 | 2004-12-08 | 盘锦辽河油田恒泰利建安工程有限公司 | Composite rotor high starting torque induction motor |
| CN102223037A (en) * | 2011-05-17 | 2011-10-19 | 宁玉泉 | Novel variable-speed salient-pole synchronous motor and huge rotary frequency converter |
| US20130257054A1 (en) * | 2012-03-29 | 2013-10-03 | General Electric Company | Gas Turbine - Variable Frequency Transformer Power Systems and Methods |
| CN205092743U (en) * | 2015-11-13 | 2016-03-16 | 乐山三缘电机有限公司 | Variable -frequency three -phase asynchronous electric motor |
-
2015
- 2015-11-13 CN CN201510775013.0A patent/CN105262299A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382560A (en) * | 2001-02-28 | 2002-12-04 | 株式会社日立制作所 | Machine tool |
| CN2662524Y (en) * | 2003-11-27 | 2004-12-08 | 盘锦辽河油田恒泰利建安工程有限公司 | Composite rotor high starting torque induction motor |
| CN102223037A (en) * | 2011-05-17 | 2011-10-19 | 宁玉泉 | Novel variable-speed salient-pole synchronous motor and huge rotary frequency converter |
| US20130257054A1 (en) * | 2012-03-29 | 2013-10-03 | General Electric Company | Gas Turbine - Variable Frequency Transformer Power Systems and Methods |
| CN205092743U (en) * | 2015-11-13 | 2016-03-16 | 乐山三缘电机有限公司 | Variable -frequency three -phase asynchronous electric motor |
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Address after: Willow town of Wutongqiao District 614000 in Sichuan province Leshan City Traffic Street No. 68 Applicant after: LESHAN SANYUAN ELECTRICAL MACHINERY CO., LTD. Address before: Willow town of Wutongqiao District 614000 in Sichuan province Leshan City Traffic Street No. 8 Applicant before: LESHAN SANYUAN ELECTRICAL MACHINERY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
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| RJ01 | Rejection of invention patent application after publication |