CN101552499A - Rotor punching plate of variable-frequency motor - Google Patents
Rotor punching plate of variable-frequency motor Download PDFInfo
- Publication number
- CN101552499A CN101552499A CNA2009100276078A CN200910027607A CN101552499A CN 101552499 A CN101552499 A CN 101552499A CN A2009100276078 A CNA2009100276078 A CN A2009100276078A CN 200910027607 A CN200910027607 A CN 200910027607A CN 101552499 A CN101552499 A CN 101552499A
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- China
- Prior art keywords
- rotor punching
- punching plate
- rotor
- variable
- motor
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- 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.)
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- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a rotor punching plate of a variable-frequency motor, in particular to be used for a 6-pole variable-frequency motor rotor iron core with the central height of 225mm; the rotor punching plate comprises a rotor punching plate body; the punching plate is characterized in that the rotor punching plate body is provided with 64 troughs; the rotor punching plate body and an aluminium are die-cast into a whole to form a cast aluminum rotor. The amount of the matching troughs arranged on the stator punching plate body and the rotor punching plate body of the motor are changed to 54 and 64 respectively, namely, the amount of the stator punching troughs are kept unchangeable and the trough shape of the rotor punching plate is also kept unchangeable, and only the amount of the trough shapes of the rotor punching plates is changed to 64; when in use, the electromagnetic sound of the variable-frequency motor at the frequency section of 175-200Hz can be eliminated, and the whole noise of the motor is obviously reduced simultaneously.
Description
Technical field
The present invention relates to a kind of rotor punching plate of variable-frequency motor, specifically be used for 6 utmost point variable-frequency motor rotor cores of 225mm height of center.
Background technology
Along with frequency converter increasingly extensive application in industrial control field, the use of variable-frequency motor is also increasingly extensive, can say so since variable-frequency motor aspect variable frequency control than the superiority of common electric machine, we all are not difficult to find out the figure of variable-frequency motor every place of using frequency converter.But the intrinsic space harmonics that contains each time time harmonic and motor electromagnetic part in the variable frequency power supply is interfered mutually, forms various magnetic exciting forces.When the electromagnetic force wave frequency consistent with motor body eigentone or near the time, will produce covibration, thereby strengthen noise.Particularly when high frequency, noise is particularly outstanding.
In prior art, it is 54/42 (to be that stator punching is opened 54 grooves that the rotor groove that 6 utmost point motors of 225mm height of center adopt cooperates, rotor punching is opened 42 grooves), groove cooperates variable-frequency motor that the rotor punching produces when 5～175Hz frequency control thus, and motor noise belongs to normal range (NR); Yet the overall noise of motor obviously raises when 175～200Hz.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of electromagnetic sound that can eliminate motor basically is provided, also can make the obvious rotor punching plate of variable-frequency motor that descends of overall noise of motor.
According to technical scheme provided by the invention, a kind of rotor punching plate of variable-frequency motor comprises the rotor punching body, and feature is: be provided with 64 grooves on the rotor punching body.
Compared with the prior art the present invention has the following advantages:
The present invention is because the mating groove that is provided with on the rotor punching body of motor changes 54/64 into, and promptly stator punching groove quantity remains unchanged, and the flute profile of rotor punching also remains unchanged, and just the flute profile quantity with rotor punching changes 64 grooves into; During use, just can eliminate the electromagnetic sound of variable-frequency motor, simultaneously the overall noise of motor has been decreased drastically at 175～200Hz frequency band.
Description of drawings
Fig. 1 is the present invention's 64 groove rotor punching structural representations;
Fig. 2 is a cast-aluminum rotor structural representation of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
The present invention only need change the diel of rotor punching, goes out (Fig. 1) rotor punching with silicon steel sheet on punch press, is provided with 64 grooves 3 on rotor punching body 1.On special-purpose rotor die casting machine, the rotor punching body 1 of some and aluminium 2 are cast into one again and constitute (Fig. 2) cast-aluminum rotor.The present invention program does not change original fit of motor.
Claims (1)
1, a kind of rotor punching plate of variable-frequency motor comprises rotor punching body (1), it is characterized in that: described rotor punching body (1) is provided with 64 grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100276078A CN101552499A (en) | 2009-05-14 | 2009-05-14 | Rotor punching plate of variable-frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100276078A CN101552499A (en) | 2009-05-14 | 2009-05-14 | Rotor punching plate of variable-frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101552499A true CN101552499A (en) | 2009-10-07 |
Family
ID=41156538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100276078A Pending CN101552499A (en) | 2009-05-14 | 2009-05-14 | Rotor punching plate of variable-frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101552499A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801229A (en) * | 2011-05-24 | 2012-11-28 | 永济新时速电机电器有限责任公司 | Low-noise traction motor |
| WO2016183706A1 (en) * | 2015-05-15 | 2016-11-24 | 佛山市威灵洗涤电机制造有限公司 | Three-phase variable frequency electric motor and washing machine |
-
2009
- 2009-05-14 CN CNA2009100276078A patent/CN101552499A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801229A (en) * | 2011-05-24 | 2012-11-28 | 永济新时速电机电器有限责任公司 | Low-noise traction motor |
| WO2016183706A1 (en) * | 2015-05-15 | 2016-11-24 | 佛山市威灵洗涤电机制造有限公司 | Three-phase variable frequency electric motor and washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091007 |