CN102828967B - High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump - Google Patents
High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump Download PDFInfo
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- CN102828967B CN102828967B CN201110157446.1A CN201110157446A CN102828967B CN 102828967 B CN102828967 B CN 102828967B CN 201110157446 A CN201110157446 A CN 201110157446A CN 102828967 B CN102828967 B CN 102828967B
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Abstract
The invention discloses a high temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump which comprises a pump cover, an impeller, a pump body, a pump shaft, an inner magnetic rotor, a fan, an outer fan, a stator winding, a shell, a rear cover, a motor, a shield and a rear shaft. The pump shaft is inserted on the pump body; the impeller is arranged at one end of the pump shaft; the pump cover is connected with the pump body; the impeller is arranged in a cavity body formed by the pump cover and the pump body; the inner magnetic rotor is clamped on the pump shaft; a seal isolation sleeve is connected on the pump body; the inner magnetic rotor is positioned in the seal isolation sleeve; one end of the shell is connected with the pump body and the other end of the shell is connected onto the rear cover by a bolt; the rear cover is connected onto the rear shaft; the stator winding is arranged on the inner side wall of the shell; the motor is arranged on the shell; the motor is connected with the stator winding; the fan is fixedly connected on the rear shaft; the outer fan is fixedly connected on the pump shaft; the shield is connected with the shell; and the outer fan is positioned in the shield. The high temperature resistance rare earth permanent magnet brushless DC self-priming pump has the characteristics of simple structure, long service life, high efficiency, high temperature resistance, corrosion resistance and low noise.
Description
Technical field
The present invention relates to pumping unit field, refer more particularly to a kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming.
Background technique
Current existing high-temperature resistant pump is broadly divided into three classes:
One, direct current generator+magnetic drive pump device; Need additional permanent magnet i.e. outer magnet rotor and interior magnet rotor, cost is high, complex structure, and volume is large, and original permanent magnet is due to the high easily demagnetization of machine operation ambient temperature; Magnetic drive pump is due to the effect of two cover magnet steel, and the practical efficiency of motor is not high.
Two, have brush straightway pump, mainly use carbon brush, but to there is brush wear resistance very poor simultaneously, working life is short, be integrated design, brush damage after can only scrap and can not keep in repair, cost is also high.
Three, brushless dc pump, due to motor part and the heat radiation of thermal source fan-free, temperature is transmitted to motor from front motor cover, easily causes burn-down of electric motor; Another kind of hot high temperature is transmitted to stator interior from interior seal isolation cover simultaneously, causes motor overheating, also easily causes burn-down of electric motor.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art and provide a kind of structure simple, realizing low cost, high efficiency, corrosion-resistant, high temperature resistant, long service life, novel rare earth permanent magnet brushless DC self-priming pump easy to maintenance.
The present invention realizes in the following way:
A kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming, include pump cover 1, impeller 2, the pump housing 3, pump shaft 6, pump shaft 6 is arranged on the pump housing 3; Impeller 2 is located at one end of pump shaft 6, and pump cover 1 is connected with the pump housing 3, and impeller 2 is located in the cavity that pump cover 1 and the pump housing 3 formed; It is characterized in that: also include interior magnet rotor 7, fan blade 9, external wind wheel 10, staor winding 12, housing 14, bonnet 15, motor 16, guard shield 18, rear axle 20;
Interior magnet rotor 7 is arranged on pump shaft 6 by snap ring 17, and is positioned at the right side of the pump housing 3; The pump housing 3 is connected with seal isolation cover 13, interior magnet rotor 7 is positioned at seal isolation cover 13;
Housing 14 one end is connected with the pump housing 3, and the other end bolt is connected on bonnet 15; Bonnet 15 is connected on rear axle 20 by bearing, and is positioned at the right side of magnet rotor 7; The madial wall of housing 14 is provided with staor winding 12, and it is positioned at the periphery of magnet rotor 7; Housing 14 is provided with motor 16, and it is connected with staor winding 12;
Fan blade 9 is fixedly connected on rear axle 20, and between seal isolation cover 13 and bonnet 15; External wind wheel 10 is fixedly connected on rear axle 20, and is positioned at the right side of bonnet 15; Rear axle 20 is connected with drive unit;
Guard shield 18 is connected with housing 14, and is positioned at the right-hand member of the pump housing 3; External wind wheel 10 is positioned at guard shield 18.
Described motor 16 is equiped with magnification circuit plate 19.
Described interior magnet rotor 7 is equiped with interior magnet steel 8; Staor winding 12 is equiped with Hall switch 11.
Described fan blade 9 is equiped with magnet steel 91.
Described bonnet 15 is Openworks shape, and housing 14 is Openworks shape.
Amplification circuit 19 of the present invention is installed in top or the rear portion of motor 16.
The present invention is rotated with the magnet steel 8 on interior magnet rotor 7 by the Hall element 11 on staor winding 12 and the amplification circuit on motor 16 19, does magnetic field intercepts action; Magnet steel 8 rotational synchronization drives pump shaft 6 to rotate, and because impeller 2 and pump shaft 6 are fixed, impeller 2 rotates, and impeller 2 centrifugal action in liquid medium, realizes the conveying of liquid.
Structure of the present invention is simple, easy to operate, practical, and in utilizing, the axle of magnet rotor replaces motor shaft, removes bearing and bearing support and connects, utilize motor coil magnetic field and interior magnet rotor magnetic field to act on mutually, realizes pump simultaneously and operate; By the sink of fan blade, housing and bonnet, realize DC Brushless Motor pump energy long-play under high temperature resistant condition, and do not affect working efficiency.
In sum, interior magnet rotor of the present invention is rotor and the power of pump, and realizing directly is connected drives, without revealing.With effective combination of brushless motor, greatly reduce cost of production, improve working life, simplified structure, realize high efficiency, reach high temperature resistant, corrosion-resistant, the effect such as low noise.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention.
Embodiment
Now by reference to the accompanying drawings, the specific embodiment of the invention is described in detail in detail:
As shown in Figure 1, a kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming, includes pump cover 1, impeller 2, the pump housing 3, pump shaft 6, and pump shaft 6 is arranged on the pump housing 3; Impeller 2 is located at one end of pump shaft 6, and pump cover 1 is connected with the pump housing 3, and impeller 2 is located in the cavity that pump cover 1 and the pump housing 3 formed; It is characterized in that: also include interior magnet rotor 7, fan blade 9, external wind wheel 10, staor winding 12, housing 14, bonnet 15, motor 16, guard shield 18, rear axle 20;
Interior magnet rotor 7 is arranged on pump shaft 6 by snap ring 17, and is positioned at the right side of the pump housing 3; The pump housing 3 is connected with seal isolation cover 13, interior magnet rotor 7 is positioned at seal isolation cover 13;
Housing 14 one end is connected with the pump housing 3, and the other end bolt is connected on bonnet 15; Bonnet 15 is connected on rear axle 20 by bearing, and is positioned at the right side of magnet rotor 7; The madial wall of housing 14 is provided with staor winding 12, and it is positioned at the periphery of magnet rotor 7; Housing 14 is provided with motor 16, and it is connected with staor winding 12;
Fan blade 9 is fixedly connected on rear axle 20, and between seal isolation cover 13 and bonnet 15; External wind wheel 10 is fixedly connected on rear axle 20, and is positioned at the right side of bonnet 15; Rear axle 20 is connected with drive unit;
Guard shield 18 is connected with housing 14, and is positioned at the right-hand member of the pump housing 3; External wind wheel 10 is positioned at guard shield 18.
Described motor 16 is equiped with magnification circuit plate 19.
Described interior magnet rotor 7 is equiped with interior magnet steel 8; Staor winding 12 is equiped with Hall switch 11.
Described fan blade 9 is equiped with magnet steel 91.
Described bonnet 15 is Openworks shape, and housing 14 is Openworks shape.
Amplification circuit 19 of the present invention is installed in top or the rear portion of motor 16.
The present invention is rotated with the magnet steel 8 on interior magnet rotor 7 by the Hall element 11 on staor winding 12 and the amplification circuit on motor 16 19, does magnetic field intercepts action; Magnet steel 8 rotational synchronization drives pump shaft 6 to rotate, and because impeller 2 and pump shaft 6 are fixed, impeller 2 rotates, and impeller 2 centrifugal action in liquid medium, realizes the conveying of liquid.
Seal isolation of the present invention cover 13 has that magnetic permeability is good, resistance value is large, corrosion-resistant, resistant to elevated temperatures material is made; Owing to being Spielpassung between seal isolation cover 13 and staor winding 12, such liquid medium high temperature cannot be directly transferred on staor winding 12, thus realizes the low-temperature working environment of staor winding 12.
Magnet steel 91 on fan blade 9 of the present invention is made up of soft magnetic material and small volume permanent magnetic steel, and soft magnetic material and small volume permanent magnetic steel form and be fixed on fan blade 9, when staor winding 12 obtains signal, rotate between magnet steel 91 and staor winding 12; Rotating speed and motor 16 rotary speed phase, rotate after flowing air flows into from the openwork hole of bonnet 15, air through fan blade 9 aeolian currents through staor winding 12 and seal isolation cover 13 between gap, and after through housing 14 openwork hole discharge motor 16 outside; High temperature in such seal isolation cover 13 just makes its temperature reduce by the flowing of air, play thermolysis to motor 16; Thus realize the normal operation of DC brushless motor 16.
Interior magnet rotor 7 of the present invention adopts corrosion-resistant, exotic material to make.Pump shaft 6 adopts the material such as pottery, silicon nitride to make.The present invention has lacked a set of inside and outside magnet rotor compared with original direct current magnetic drive pump, so the present invention has high temperature resistant, corrosion-resistant, efficiently, and the characteristic of low cost; And the conduction oil of high temperature resistant≤350 DEG C can be realized.
Claims (4)
1. a high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming, includes pump cover (1), impeller (2), the pump housing (3), pump shaft (6), and pump shaft (6) is arranged on the pump housing (3); Impeller (2) is located at one end of pump shaft (6), and pump cover (1) is connected with the pump housing (3), and impeller (2) is located in the cavity that pump cover (1) and the pump housing (3) formed; It is characterized in that: also include interior magnet rotor (7), fan blade (9), external wind wheel (10), staor winding (12), housing (14), bonnet (15), motor (16), guard shield (18), rear axle (20);
Interior magnet rotor (7) is arranged on pump shaft (6) by snap ring (17), and is positioned at the right side of the pump housing (3); The pump housing (3) is connected with seal isolation cover (13), interior magnet rotor (7) is positioned at seal isolation cover (13);
Housing (14) one end is connected with the pump housing (3), and the other end bolt is connected on bonnet (15); Bonnet (15) is connected on rear axle (20) by bearing, and is positioned at the right side of magnet rotor (7); The madial wall of housing (14) is provided with staor winding (12), and it is positioned at the periphery of magnet rotor (7); Housing (14) is provided with motor (16), and it is connected with staor winding (12);
Fan blade (9) is fixedly connected on rear axle (20), and is positioned between seal isolation cover (13) and bonnet (15); External wind wheel (10) is fixedly connected on rear axle (20), and is positioned at the right side of bonnet (15); Rear axle (20) is connected with drive unit;
Guard shield (18) is connected with housing (14), and is positioned at the right-hand member of the pump housing (3); External wind wheel (10) is positioned at guard shield (18).
2. a kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming according to claim 1, is characterized in that: described motor (16) is equiped with magnification circuit plate (19).
3. a kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming according to claim 1, is characterized in that: described interior magnet rotor (7) is equiped with interior magnet steel (8); Staor winding (12) is equiped with Hall switch (11).
4. a kind of high-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming according to claim 1, is characterized in that: described fan blade (9) is equiped with magnet steel (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110157446.1A CN102828967B (en) | 2011-06-13 | 2011-06-13 | High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110157446.1A CN102828967B (en) | 2011-06-13 | 2011-06-13 | High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump |
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| Publication Number | Publication Date |
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| CN102828967A CN102828967A (en) | 2012-12-19 |
| CN102828967B true CN102828967B (en) | 2015-02-18 |
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| CN201110157446.1A Active CN102828967B (en) | 2011-06-13 | 2011-06-13 | High temperature resistance rare earth permanent magnet brushless DC (Direct Current) self-priming pump |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929951B (en) * | 2015-06-05 | 2019-01-15 | 东莞市弘胜机电有限公司 | Energy saving DC frequency-changing water pump and its control method |
| CN109139490B (en) * | 2018-06-13 | 2020-05-15 | 上海尧禹智能泵阀有限公司 | Non-magnet idling-resistant integrated modular temperature-resistant corrosion-resistant high-lift self-priming pump |
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| EP0387743A1 (en) * | 1989-03-16 | 1990-09-19 | Gec Alsthom Moteurs Sa | Enclosed air cooled electrical motor and its manufacturing method |
| CN2190835Y (en) * | 1993-11-10 | 1995-03-01 | 文登市第二电机厂 | Semi closed inner fixed axial flow fan asynchronous motor |
| JPH07111751A (en) * | 1993-10-08 | 1995-04-25 | Ebara Corp | Magnet pump |
| CN1159090A (en) * | 1995-11-27 | 1997-09-10 | 株式会社日立制作所 | Totally-enclosed type motor |
| CN1374734A (en) * | 2001-03-08 | 2002-10-16 | 徐志瑶 | Double-cooling fan-type triphase AC variable frequency speed-regulating motor and its reforming technology |
| JP2004229390A (en) * | 2003-01-22 | 2004-08-12 | Hitachi Ltd | Rotary electric machine and its manufacturing method |
| CN2924103Y (en) * | 2006-06-20 | 2007-07-18 | 温州市腾宇泵阀制造有限公司 | High-power horizontal magnetic driven centrifugal pump |
| CN101447700A (en) * | 2008-12-26 | 2009-06-03 | 广东省东莞电机有限公司 | Low-voltage large-power motor and method for increasing power |
| CN201332347Y (en) * | 2008-11-27 | 2009-10-21 | 郑云峰 | Brushless motor water pump |
| CN202091211U (en) * | 2011-06-13 | 2011-12-28 | 福建省福安市力德泵业有限公司 | High-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming pump |
-
2011
- 2011-06-13 CN CN201110157446.1A patent/CN102828967B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0387743A1 (en) * | 1989-03-16 | 1990-09-19 | Gec Alsthom Moteurs Sa | Enclosed air cooled electrical motor and its manufacturing method |
| JPH07111751A (en) * | 1993-10-08 | 1995-04-25 | Ebara Corp | Magnet pump |
| CN2190835Y (en) * | 1993-11-10 | 1995-03-01 | 文登市第二电机厂 | Semi closed inner fixed axial flow fan asynchronous motor |
| CN1159090A (en) * | 1995-11-27 | 1997-09-10 | 株式会社日立制作所 | Totally-enclosed type motor |
| CN1374734A (en) * | 2001-03-08 | 2002-10-16 | 徐志瑶 | Double-cooling fan-type triphase AC variable frequency speed-regulating motor and its reforming technology |
| JP2004229390A (en) * | 2003-01-22 | 2004-08-12 | Hitachi Ltd | Rotary electric machine and its manufacturing method |
| CN2924103Y (en) * | 2006-06-20 | 2007-07-18 | 温州市腾宇泵阀制造有限公司 | High-power horizontal magnetic driven centrifugal pump |
| CN201332347Y (en) * | 2008-11-27 | 2009-10-21 | 郑云峰 | Brushless motor water pump |
| CN101447700A (en) * | 2008-12-26 | 2009-06-03 | 广东省东莞电机有限公司 | Low-voltage large-power motor and method for increasing power |
| CN202091211U (en) * | 2011-06-13 | 2011-12-28 | 福建省福安市力德泵业有限公司 | High-temperature-resistant rare-earth permanent-magnet brushless direct current self-priming pump |
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| CN102828967A (en) | 2012-12-19 |
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