CN101539150B - Ventilator driven by single-phase electric motor - Google Patents
Ventilator driven by single-phase electric motor Download PDFInfo
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- CN101539150B CN101539150B CN2009100388482A CN200910038848A CN101539150B CN 101539150 B CN101539150 B CN 101539150B CN 2009100388482 A CN2009100388482 A CN 2009100388482A CN 200910038848 A CN200910038848 A CN 200910038848A CN 101539150 B CN101539150 B CN 101539150B
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- impeller
- motor
- winding
- ventilator
- phase
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- 238000004804 winding Methods 0.000 claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000004080 punching Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a ventilator driven by a single-phase electric motor, comprising impeller and the electric motor for directly driving the impeller. The impeller is of an axial flow type and has a diameter within 400mm, 3 to 6 blades and the rated power higher than or equal to 900 r/m or the impeller is of a centrifugal type and has a diameter within 200mm, 25 to 50 blades and the rated power higher than or equal to 950 r/m; the electric motor has a length-diameter ratio within 0.6, an inner squirrel-cage rotor and an inclined stator groove within 1, wherein a stator comprises 8 grooves of iron core and windings with inserted lines in 2 phases and 4 stages, and all stages of phase groups uniformly span by 1 groove. The design can simplify the technology, lowers the cost and improves the shaking condition of part products in the start process.
Description
Technical field
The present invention relates to the ventilator that a kind of single phase motor drives, relate in particular to cooperating of its mechanical structure and electromagnetic structure.
Background technique
The ventilator of daily-use electrical appliance is usually by the direct drives impeller of single phase motor, industry always for reducing its cost or/and improve its performance effort, comprise the jitter problem of the ventilator start-up course that solves the bigger and inconvenient balance of impeller inertia.
Summary of the invention
Technical problem to be solved by this invention is, proposes the ventilator that a kind of single phase motor drives, and it can further reduce its cost or improve its performance with respect to traditional design, comprises the jitter problem that portioned product is overcome its start-up course.
One of technological scheme that the present invention solve the technical problem is, the ventilator that a kind of single phase motor drives comprises the impeller and the direct motor of drives impeller; And:
---impeller is an axial flow, and diameter is in the 400mm, and the number of blade is less than 8, and rated speed is not less than 900r/m;
---the motor slenderness ratio is in 0.6, and in interior cage rotor and oblique stator slot 1 groove, stator comprises iron core and winding, and described iron core is 8 grooves; Described winding rule is two-phase 4 utmost points, and it is 1 groove that each utmost point is organized equal span mutually.
Two of the technological scheme that the present invention solve the technical problem is, the ventilator that a kind of single phase motor drives comprises the impeller and the direct motor of drives impeller; And:
---impeller is centrifugal, and diameter is in the 200mm, the number of blade 25～50, and rated speed is not less than 950r/m;
---the motor slenderness ratio is in 0.6, and in interior cage rotor and oblique stator slot 1 groove, stator comprises iron core and winding, and described iron core is 8 grooves; The winding rule is two-phase 4 utmost points, and it is 1 groove that each utmost point is organized equal span mutually.
The traditional design ventilator adopts at least 16 grooves and range winding usually and repels few groove and short distance winding with single phase motor.Mainly be, few groove construction cost is low, and but harmonic wave is serious, and the short distance winding can improve harmonic wave, and but to have reduced winding coefficient unfavorable in cost.The design turns harm into good and sharp its institute's profit dexterously, for impeller diameter is in the 400mm, axial fan or impeller diameter that the number of blade 3～6 and rated speed are not less than 900r/m are in the 200mm, the number of blade 25～50 and rated speed are not less than the centrifugal fan of 950r/m, in its 100～400r/m interval, resonant frequency place, utilize 2 mutually 4 pole motor mechanical properties make 3 subharmonic strengthen more outstanding maximum in this interval because of number of stator slots and rotor chute are less to increase considerably moment, thereby improve impeller acceleration at this moment to cross interval of resonance rapidly, improve the situation of start-up course resonance shake.Simultaneously, half of span 1 groove influences less apart from winding to 3 subharmonic, but because of making the remarkable minimizing of resistance can offset winding coefficient, the end shortening descends to the influence of iron core utilization in slenderness ratio more after a little while, so that still can keep the performance of motor at the specified operating point of ventilator, and few groove and half is apart from all simplifying technology, and especially the end shortening economizes copper so that reduce cost.
Further the described stator core stamping sheet of design is square 4 jiaos of profiles that circular arc arranged or/and one in the two-phase of described motor winding is access to power supply again with being in series with another after capacitor is in parallel.The former makes full use of punching and opens material and increase mass of system, makes between the resonance region more near the peak point of motor 3 subharmonic, and the latter compares traditional circuit 3 stronger subharmonic effects, all helps further improving the jitter conditions of start-up course.
Preferably further the described motor of the design rotor resistance of converting principal phase is in 1.5 times of principal phase winding resistance.This restriction further helps harmonic effect and appears at low velocity zone and cross the required moment of resonance region with raising, avoids coming across high velocity to influence specified continuous ride quality.
Description of drawings
Fig. 1 is the present invention the 1st embodiment's ventilator structure master Visual figure;
Fig. 2 is the present invention's the 1st embodiment's ventilator stator punching schematic representation;
Fig. 3 is the present invention's the 1st embodiment's ventilator developed winding diagram.
Embodiment
The present invention's the 1st embodiment's ventilator structure as shown in Figure 1.This is a family expenses small-power axial flow ventilation fan, mainly comprise the motor 2 that is fixed in casing 10, be connected in this motor output shaft have 4 blades (not shown, as also to can be designed as 3,5,6 or 7 blades) by the blast requirement and diameter is the impeller 1 of 300mm; Rated speed 1300r/m; Motor 2 is an inner rotor motor, comprises stator 3 and has 31 remain silent groove and oblique 1.75 rotor (skewed slot is counted the situation of visual exam gained combination property and suitably adjusted, but not more than 1 stator slot) cage rotor 4; Stator 3 comprises the iron core of being made up of 8 teeth 5, and per tooth is respectively around a coil part 6 with Insulating frame.
Fig. 3 is seen in winding construction and wiring.Principal phase winding m1-m2 by sequence number on the symmetry axis that is positioned at iron core 5 punchings 4 straightway (see figure 2)s be 1,3,5,7 (see figure 3)s 4 coil parts on totally 4 teeth be composed in series by 4 utmost points; Parafacies winding a1-a2 by sequence number on the symmetry axis that is positioned at 4 jiaos of arc section (see figure 2)s of iron core 5 punchings be 2,4,6,8 (see figure 3)s 4 coil parts on totally 4 teeth be composed in series by 4 utmost points.Behind the parafacies winding a1-a2 shnt capacitor with principal phase m1-m2 series connection toward the 220V ac power supply.Certainly, also can adopt behind the conventional parafacies winding a1-a2 series capacitor and the principal phase winding m1-m2 mode that is access to power supply in parallel.
The present invention the 2nd embodiment is a household centrifugal ventilator, and impeller diameter is 200mm, the number of blade 32 (high if blast requires, can design more multiple-blade, but not more than 50), use the motor identical, but rated speed rises to 1380r/m with the 1st embodiment.
Voltage rating and mechanical output and the rated speed of impeller in actual aeration structure thereof according to ventilator, motor is carried out Electromagnetic Design, external diameter in the stator for example, folded thick, isoparametric calculating of the grooved of grooved and umber of turn and cage rotor and end ring and adjustment, comprise and be not more than the principal phase winding resistance by the rotor resistance that makes motor convert principal phase (embodiment of the invention product motor is converted the rotor resistance of principal phase and principal phase winding resistance about equally, all be about 200 ohm), can be with reference to single-phase capacitor operation motor design datas such as " small and special electric machine is designed program " (Shanghai small and special electric machine research institute chief editors, Shanghai science tech publishing house July nineteen eighty-three the 1st edition).
Claims (5)
1. the ventilator that drives of a single phase motor comprises the impeller and the direct motor of drives impeller; It is characterized in that:
---described impeller is an axial flow, and diameter is in the 400mm, and the number of blade is less than 8, and rated speed is not less than 900r/m;
---described motor slenderness ratio is in 0.6, and in interior cage rotor and oblique 1 stator slot distance, stator comprises iron core and winding, and described iron core is 8 grooves; Described winding rule is two-phase 4 utmost points, and it is 1 groove that each utmost point is organized equal span mutually.
2. the ventilator that drives of a single phase motor comprises the impeller and the direct motor of drives impeller; It is characterized in that:
---described impeller is centrifugal, and diameter is in the 200mm, the number of blade 25～50, and rated speed is not less than 950r/m;
---described motor slenderness ratio is in 0.6, and in interior cage rotor and oblique 1 stator slot distance, stator comprises iron core and winding, and described iron core is 8 grooves; The winding rule is two-phase 4 utmost points, and it is 1 groove that each utmost point is organized equal span mutually.
3. according to claim 1 or the described ventilator of claim 2, it is characterized in that: described stator core stamping sheet is square 4 jiaos of circumference profiles that circular arc is arranged, and the facewidth such as 8 grooves are uniform.
4. according to claim 1 or the described ventilator of claim 2, it is characterized in that: one in the two-phase of described motor winding is access to power supply again with being in series with another after capacitor is in parallel.
5. according to claim 1 or the described ventilator of claim 2, it is characterized in that: the rotor resistance that described motor is converted principal phase is in 1.5 times of principal phase winding resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100388482A CN101539150B (en) | 2009-04-21 | 2009-04-21 | Ventilator driven by single-phase electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100388482A CN101539150B (en) | 2009-04-21 | 2009-04-21 | Ventilator driven by single-phase electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101539150A CN101539150A (en) | 2009-09-23 |
| CN101539150B true CN101539150B (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100388482A Expired - Fee Related CN101539150B (en) | 2009-04-21 | 2009-04-21 | Ventilator driven by single-phase electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101539150B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828975B (en) * | 2012-07-06 | 2015-05-06 | 江门市金羚排气扇制造有限公司 | Low-power ventilator |
| CN105864085B (en) * | 2016-05-02 | 2017-07-18 | 江门市金羚排气扇制造有限公司 | A kind of partition type ventilation fan |
| CN113464445B (en) * | 2021-07-16 | 2022-08-23 | 浙江大学 | Modularized integrated low-noise centrifugal pump and design method thereof |
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2009
- 2009-04-21 CN CN2009100388482A patent/CN101539150B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101539150A (en) | 2009-09-23 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGMEN JINLING MOTOR CO., LTD. Free format text: FORMER OWNER: YE LUWEI Effective date: 20130208 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Yongneng Inventor after: Qin Yuzhang Inventor after: Yao Mei Inventor after: Chen Meiling Inventor after: Zhang Qiang Inventor after: Chan Danzhong Inventor after: Qu Changzhao Inventor after: Ye Luwei Inventor before: Ye Luwei |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YE LUWEI TO: LIANG YONGNENG QIN YUZHANG YAO MEI CHEN MEILING ZHANG QIANG TAN DANZHONG OU CHANGZHAO YE LUWEI Free format text: CORRECT: ADDRESS; FROM: 529020 JIANGMEN, GUANGDONG PROVINCE TO: 529085 JIANGMEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130208 Address after: 529085 Guangdong city of Jiangmen province Tangxia Mashan town of Pengjiang District feet Patentee after: Jiangmen Jinling Motor Co., Ltd. Address before: 529020, one of the 4 gardens in Causeway Bay, Causeway East Road, Pengjiang District, Guangdong, Jiangmen 102, China Patentee before: Ye Luwei |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140421 |