CN205092743U - Variable -frequency three -phase asynchronous electric motor - Google Patents
Variable -frequency three -phase asynchronous electric motor Download PDFInfo
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- CN205092743U CN205092743U CN201520904044.7U CN201520904044U CN205092743U CN 205092743 U CN205092743 U CN 205092743U CN 201520904044 U CN201520904044 U CN 201520904044U CN 205092743 U CN205092743 U CN 205092743U
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Abstract
The utility model relates to a motor technical field, through providing a variable -frequency three -phase asynchronous electric motor, including rotor, stator and variable frequency speed control mechanism, the rotor includes symmetric connection's the first rotor and the second rotor, outside the stator lay in the rotor, the end cover was connected to stator one end, sets up the bearing cap on the end cover, the rotor both ends are connected with the pivot, and one side that the pivot is connected to the rotor is equipped with the fan, and the fan has the housing outward, just the housing is fixed on the stator, variable frequency speed control mechanism includes first converter, second converter, three -phase alternating current net and the 2nd three -phase alternating current net to and the controlling means of first converter of control and second converter, the stator is connected through first converter and three -phase alternating current net, the rotor pass through the second converter with the 2nd three -phase alternating current nets the connection, and then can improve three -phase asynchronous motor's frequency conversion performance.
Description
Technical field
The utility model relates to motor technology field, particularly relates 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.
Utility model content
The utility model, 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 utility model embodiment 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 utility model embodiment, 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 utility model embodiment.
Embodiment
The utility model embodiment, 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.
The utility model embodiment provides 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 described preferred embodiment of the present utility model, 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 utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model 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 |
|---|---|---|---|
| CN201520904044.7U CN205092743U (en) | 2015-11-13 | 2015-11-13 | Variable -frequency three -phase asynchronous electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904044.7U CN205092743U (en) | 2015-11-13 | 2015-11-13 | Variable -frequency three -phase asynchronous electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205092743U true CN205092743U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520904044.7U Expired - Fee Related CN205092743U (en) | 2015-11-13 | 2015-11-13 | Variable -frequency three -phase asynchronous electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205092743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262299A (en) * | 2015-11-13 | 2016-01-20 | 乐山三缘电机有限公司 | Frequency conversion three-phase asynchronous motor |
-
2015
- 2015-11-13 CN CN201520904044.7U patent/CN205092743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262299A (en) * | 2015-11-13 | 2016-01-20 | 乐山三缘电机有限公司 | Frequency conversion three-phase asynchronous motor |
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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 |
Granted publication date: 20160316 Termination date: 20181113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |