CN103166346A - Magnetic steel group for IPM type permanent magnet motor rotor of hermetic compressor - Google Patents
Magnetic steel group for IPM type permanent magnet motor rotor of hermetic compressor Download PDFInfo
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- CN103166346A CN103166346A CN2011104285020A CN201110428502A CN103166346A CN 103166346 A CN103166346 A CN 103166346A CN 2011104285020 A CN2011104285020 A CN 2011104285020A CN 201110428502 A CN201110428502 A CN 201110428502A CN 103166346 A CN103166346 A CN 103166346A
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Abstract
The invention relates to a magnetic steel group for an IPM type permanent magnet motor rotor of a hermetic compressor. The magnetic steel group is arranged in a magnetic steel tank and located on the permanent magnet motor rotor. The magnetic steel group is the combination of the magnetic steel with high residual magnetism and low HCJ, the magnetic steel with low residual magnetism and high HCJ, the magnetic steel with equal residual magnetism and equal HCJ, the magnetic steel with high residual magnetism and high HCJ, the magnetic steel with low residual magnetism and low HCJ, the magnetic steel with equal residual magnetism and high HCJ, and the magnetic steel with equal residual magnetism and low HCJ. Compared with the prior art, the magnet thickness and the magnet length are optimized so that the problem of demagnetization can be solved. Thus, magnet is operated at the best operating point so that the problem that the magnet is prone to demagnetization under high load can be solved, and the efficiency of a permanent magnet motor is increased by 1-2%.
Description
Technical field
The present invention relates to the permanent magnet machine rotor assembly, especially relate to a kind of IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor.
Background technology
At present, magneto adopts the same magnet of remanent magnetism, HCJ and thickness substantially, when using this kind magnet, the demagnetization phenomenon often easily occurs in the both sides of magnet Width.In order to make the operating mode that magneto more can enduring high capacity and to have efficient operation characteristic, need to adopt different-thickness, different length, different remanent magnetism, the magnet combination of different HCJ is installed and is solved this phenomenon, but the magnet steel combination that How to choose is suitable, this is problem demanding prompt solution.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of optimization magnet thickness to solve magnet demagnetization phenomenon for the defective that overcomes above-mentioned prior art existence, makes magnet operate in the IPM formula permanent magnet machine rotor magnet steel group of the hermetic compressor under best operating point.
Purpose of the present invention can be achieved through the following technical solutions:
The IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arranges and is opened on permanent magnet machine rotor in the magnet steel groove, it is characterized in that, described magnet steel group is the magnet steel of high remanent magnetism and low HCJ, the magnet steel of low remanent magnetism and high HCJ, the magnet steel of equal remanent magnetism and HCJ, the magnet steel of high remanent magnetism and high HCJ, the magnet steel of low remanent magnetism and low HCJ, the combination that the magnet steel of equal remanent magnetism and high HCJ and the magnet steel of equal remanent magnetism and low HCJ consist of.
Described magnet steel groove quantity be 1 or more than, evenly be arranged on the inside of permanent magnet machine rotor, consist of some pole pairs.
Be provided with the magnet steel of low remanent magnetism and high HCJ in described magnet steel groove, the magnet steel of high remanent magnetism and low HCJ is set in the both sides of the magnet steel that hangs down remanent magnetism and high HCJ, and the Thickness Ratio of the magnet steel of low remanent magnetism and high HCJ and the magnet steel of high remanent magnetism and low HCJ is (0.5-0.8): 1.
Be provided with the magnet steel of equal remanent magnetism and HCJ in described magnet steel groove, be provided with the equal remanent magnetism of thickening and the magnet steel of HCJ in its both sides, the Thickness Ratio of two kinds of magnet steel is (0.5-0.8): 1.
Be provided with the magnet steel of low remanent magnetism and low HCJ in described magnet steel groove, both sides are provided with the magnet steel of high remanent magnetism and high HCJ, and the Length Ratio of the magnet steel of low remanent magnetism and low HCJ and the magnet steel of high remanent magnetism and high HCJ is greater than 1.
Be provided with the magnet steel of equal remanent magnetism and high HCJ in described magnet steel groove, both sides are provided with the magnet steel of equal remanent magnetism and low HCJ, and the Length Ratio of the magnet steel of the magnet steel of equal remanent magnetism and low HCJ and equal remanent magnetism and high HCJ is greater than 1.
Compared with prior art, the present invention is according to remanent magnetism, HCJ parameter select magnet, and the optimization magnet thickness solves magnet demagnetization phenomenon, make magnet operate under best operating point, thereby can solve magnet in the demagnetization phenomenon that the high load capacity lower magnet easily occurs, make magneto improved efficiency 1～2%.
Description of drawings
Fig. 1 is structural representation of the present invention in embodiment 1;
Fig. 2 is structural representation of the present invention in embodiment 2;
Fig. 3 is structural representation of the present invention in embodiment 3;
Fig. 4 is structural representation of the present invention in embodiment 4.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
The IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arrange and are opened on permanent magnet machine rotor 1 in the magnet steel groove, its structure as shown in Figure 1, magnet steel groove quantity is not limit, and evenly is arranged on the inside of permanent magnet machine rotor 1.
Be provided with the magnet steel 2 of a low remanent magnetism and high HCJ in each magnet steel groove, the magnet steel 3 of high remanent magnetism and low HCJ is set in the both sides of the magnet steel 2 that hangs down remanent magnetism and high HCJ, and the magnet steel 2 of low remanent magnetism and high HCJ is 0.5: 1 with the Thickness Ratio of the magnet steel 3 of high remanent magnetism and low HCJ.
Embodiment 2
The IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arrange and are opened on permanent magnet machine rotor 1 in the magnet steel groove, its structure as shown in Figure 2, magnet steel groove quantity is not limit, and evenly is arranged on the inside of permanent magnet machine rotor 1.
Be provided with the magnet steel 4 of an equal remanent magnetism and HCJ in each magnet steel groove, the Thickness Ratio that is provided with 5, two kinds of magnet steel of magnet steel of the equal remanent magnetism of thickening and HCJ in its both sides is 0.8: 1.
Embodiment 3
The IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arrange and are opened on permanent magnet machine rotor 1 in the magnet steel groove, its structure as shown in Figure 3, magnet steel groove quantity is not limit, and evenly is arranged on the inside of permanent magnet machine rotor 1.
Be equipped with the magnet steel 6 of low remanent magnetism and low HCJ in each magnet steel groove, both sides are provided with the magnet steel 7 of high remanent magnetism and high HCJ, and the width ratio of the magnet steel 6 of low remanent magnetism and low HCJ and the magnet steel 7 of high remanent magnetism and high HCJ is greater than 1.
The IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arrange and are opened on permanent magnet machine rotor 1 in the magnet steel groove, its structure as shown in Figure 4, magnet steel groove quantity is not limit, and evenly is arranged on the inside of permanent magnet machine rotor 1.
Be equipped with the magnet steel 8 of equal remanent magnetism and high HCJ in each magnet steel groove, both sides are provided with the magnet steel 9 of equal remanent magnetism and low HCJ, and the width ratio of the magnet steel 8 of equal remanent magnetism and low HCJ and the magnet steel 9 of equal remanent magnetism and high HCJ is greater than 1.
Claims (6)
1. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor, this magnet steel group arranges and is opened on permanent magnet machine rotor in the magnet steel groove, it is characterized in that, described magnet steel group is the magnet steel of high remanent magnetism and low HCJ, the magnet steel of low remanent magnetism and high HCJ, the magnet steel of equal remanent magnetism and HCJ, the magnet steel of high remanent magnetism and high HCJ, the magnet steel of low remanent magnetism and low HCJ, the combination that the magnet steel of equal remanent magnetism and high HCJ and the magnet steel of equal remanent magnetism and low HCJ consist of.
2. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor according to claim 1, is characterized in that, described magnet steel groove be 1 or more than, evenly be arranged on the inside of permanent magnet machine rotor.
3. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor according to claim 1, it is characterized in that, be provided with the magnet steel of low remanent magnetism and high HCJ in described magnet steel groove, the magnet steel of high remanent magnetism and low HCJ is set in the both sides of the magnet steel that hangs down remanent magnetism and high HCJ, and the Thickness Ratio of the magnet steel of low remanent magnetism and high HCJ and the magnet steel of high remanent magnetism and low HCJ is (0.5-0.8): 1.
4. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor according to claim 1, it is characterized in that, be provided with the magnet steel of equal remanent magnetism and HCJ in described magnet steel groove, be provided with the equal remanent magnetism of thickening and the magnet steel of HCJ in its both sides, the Thickness Ratio of two kinds of magnet steel is (0.5-0.8): 1.
5. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor according to claim 1, it is characterized in that, be provided with the magnet steel of low remanent magnetism and low HCJ in described magnet steel groove, both sides are provided with the magnet steel of high remanent magnetism and high HCJ, and the Length Ratio of the magnet steel of low remanent magnetism and low HCJ and the magnet steel of high remanent magnetism and high HCJ is greater than 1.
6. the IPM formula permanent magnet machine rotor magnet steel group of hermetic compressor according to claim 1, it is characterized in that, be provided with the magnet steel of equal remanent magnetism and high HCJ in described magnet steel groove, both sides are provided with the magnet steel of equal remanent magnetism and low HCJ, and the Length Ratio of the magnet steel of the magnet steel of equal remanent magnetism and low HCJ and equal remanent magnetism and high HCJ is greater than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104285020A CN103166346A (en) | 2011-12-19 | 2011-12-19 | Magnetic steel group for IPM type permanent magnet motor rotor of hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104285020A CN103166346A (en) | 2011-12-19 | 2011-12-19 | Magnetic steel group for IPM type permanent magnet motor rotor of hermetic compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103166346A true CN103166346A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104285020A Pending CN103166346A (en) | 2011-12-19 | 2011-12-19 | Magnetic steel group for IPM type permanent magnet motor rotor of hermetic compressor |
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| CN (1) | CN103166346A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451828A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | A permanent magnet motor, a rotor and a permanent magnet thereof |
| CN108880040A (en) * | 2018-08-30 | 2018-11-23 | 包头瑞祥稀土科技有限公司 | A kind of anti-demagnetization magnet steel of rare-earth permanent-magnet electric machine high temperature resistant |
| CN112117846A (en) * | 2019-06-19 | 2020-12-22 | 上海海立电器有限公司 | Special-shaped permanent magnet structure of motor rotor and compressor |
| CN113113990A (en) * | 2021-04-07 | 2021-07-13 | 上海大学 | Permanent magnet pole of built-in permanent magnet motor rotor and PC value evaluation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516915A (en) * | 2002-03-20 | 2004-07-28 | ͬ�Ϳ�ҵ��ʽ���� | Permanent magnet type motor and compressor using it |
| CN2862478Y (en) * | 2005-10-31 | 2007-01-24 | 上海日立电器有限公司 | Magnetic-iron built-in type permanent magnetic synchro speed regulation motor rotor |
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
-
2011
- 2011-12-19 CN CN2011104285020A patent/CN103166346A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516915A (en) * | 2002-03-20 | 2004-07-28 | ͬ�Ϳ�ҵ��ʽ���� | Permanent magnet type motor and compressor using it |
| CN2862478Y (en) * | 2005-10-31 | 2007-01-24 | 上海日立电器有限公司 | Magnetic-iron built-in type permanent magnetic synchro speed regulation motor rotor |
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451828A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | A permanent magnet motor, a rotor and a permanent magnet thereof |
| CN108880040A (en) * | 2018-08-30 | 2018-11-23 | 包头瑞祥稀土科技有限公司 | A kind of anti-demagnetization magnet steel of rare-earth permanent-magnet electric machine high temperature resistant |
| CN112117846A (en) * | 2019-06-19 | 2020-12-22 | 上海海立电器有限公司 | Special-shaped permanent magnet structure of motor rotor and compressor |
| CN113113990A (en) * | 2021-04-07 | 2021-07-13 | 上海大学 | Permanent magnet pole of built-in permanent magnet motor rotor and PC value evaluation method thereof |
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Application publication date: 20130619 |