CN101557148A - Single-phase capacitor running motor - Google Patents
Single-phase capacitor running motor Download PDFInfo
- Publication number
- CN101557148A CN101557148A CNA200910039290XA CN200910039290A CN101557148A CN 101557148 A CN101557148 A CN 101557148A CN A200910039290X A CNA200910039290X A CN A200910039290XA CN 200910039290 A CN200910039290 A CN 200910039290A CN 101557148 A CN101557148 A CN 101557148A
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- winding
- stator
- rotor
- motor
- end cover
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- 239000003990 capacitor Substances 0.000 title abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 115
- 238000009434 installation Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000004323 axial length Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 230000010349 pulsation Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The invention relates to a single-phase capacitor running motor. The motor comprises a motor shaft, a rotor, a stator, a front end cover and a rear end cover, wherein the rotor is sleeved on the motor shaft, the stator is sleeved on the outer side of the rotor, the front end cover and the rear end cover which are mutually buckled are arranged on the outer side of the stator, two ends of the motor shaft are arranged on the rear end cover of the front end cover through a bearing, a stator core of the stator is provided with a deep-row groove and a shallow-row groove, a winding of the stator is a centralized winding comprising a first winding and a second winding, coils of the first winding and the second winding are respectively wound in the deep-row groove and the shallow-row groove of the stator core, coils of the first winding wound on the deep-row groove are wound in the forward and reverse directions, coils wound on the shallow-row groove are wound in the forward and reverse directions, and the first winding is connected with the second winding in parallel after being connected with a capacitor in series or the second winding is connected with. The invention can save about 20% of wire, and for the motor with thin iron core and large winding span, the copper consumption of the winding is saved more obviously, and the winding shortens the axial length of the motor, the machine winding is realized in the stator winding manufacture, the processing flow is simplified, and the stator production efficiency is improved; in addition, the concentrated stator adopted by the invention has high winding coefficient, is suitable for motors with different pole numbers and different powers, and has good motor performance.
Description
Technical field
The present invention is a kind of single-phase capacitor-operated motor, and particularly a kind of concentrated winding single-phase capacitor-operated motor belongs to the stator punching invention technology of single-phase capacitor-operated motor.
Background technology
Alternating current machine, fan alternating current machine particularly, what generally adopt is common single-phase capacitor running asynchronous machine, common single-phase capacitor running asynchronous machine adopts distributed winding usually, as shown in Figure 4: the stator slot that the coil both sides of first winding 41 and second winding 42 all stride across some is embedded in non-conterminous two stator slots 431, because stator slot 431 is distributed on the same circumference, the bottom land degree of depth is suitable in other words, for two groups of coils after satisfying first winding 41 and 42 embeddings of second winding foot line have enough spaces of dodging at the iron core notch position, the length that just needs first winding 41 and second winding 42 to stretch out iron core wants enough, be that end winding length is wanted enough, when especially iron core slot 431 is embedded in more copper cash, the end of winding coil needs longer, therefore, end winding length increases, copper consumption increases, especially the iron core external diameter is big, the little motor of thickness unshakable in one's determination, end copper cash proportion surpasses 60% of the used copper cash of motor, in addition, above-mentioned this structure first winding 41 and second winding 42 are located a level on spatial distribution, cannot realize that cross-slot concentrates winding.The winding coil end not only consumes copper material for motor, goes back consumed power, influences electric efficiency, therefore, how to reduce the winding coil end as far as possible, improves the winding coil practical efficiency, and motor performance does not worsen simultaneously, is the direction that research breaks through.
In addition, owing to concentrate winding electric machine more flat, axial dimension shortens, the electric motor end cap height dimension shortens, and can save material, also can save motor mounting space significantly, the common single-phase capacitor running asynchronous machine of winding type appears concentrating on the market, as shown in Figure 5, its motor adopts equal slot type stator core 53, and all the gullet depth and the area of slot type stator core 53 are identical, first winding 51 and second winding 52 are to be wrapped on the stator tooth to link to each other every the tooth trace circle to form, the problem of its existence is that winding distribution ratio is low, and the teeth groove torque fluctuation is big, and electromagnetic torque pulsation is also very big, electric efficiency is low, performance can worsen, and only suitable number of poles is few, the motor that power is little.
Summary of the invention
The objective of the invention is to consider the problems referred to above and a kind of electric motor winding end length that can effectively reduce is provided, and the winding distribution ratio height, the teeth groove torque fluctuation is little, and electromagnetic torque pulsation is little, the single-phase capacitor-operated motor that electric efficiency is high.The present invention can be fit to the motor of different number of poles different capacities, and motor performance is good, and cost is low.
Technical scheme of the present invention is: single-phase capacitor-operated motor of the present invention, include motor shaft, rotor, stator, front end housing and rear end cap, rotor is sleeved on the motor shaft, stator is sleeved on the outside of rotor, the stator outside is front end housing and the rear end cap that fastens mutually, the two ends of motor shaft by Bearing Installation on the front end housing rear end cap, dark emissions groove and the double groove of shallow emissions groove have wherein been made on the stator core of stator, the winding of stator is the centralized winding that includes first winding and second winding, the coil of first winding and second winding is respectively in the dark emissions groove and shallow emissions groove of stator core, adjacent of the coil of first winding on the dark emissions groove forward and reverse around, adjacent of coil on second winding on the shallow emissions groove forward and reverse around, and in parallel behind or the second windings in series electric capacity in parallel behind the first windings in series electric capacity with first winding with second winding.
Above-mentioned rotor is a squirrel-cage rotor.
Above-mentioned rotor is a squirrel-cage bar permanent magnetism asynchronous starting rotor.
Above-mentioned rotor is the magnetic-resistance starting rotor.
The present invention is owing to made double groove on the employing stator core, the winding of stator is the centralized winding that includes first winding and second winding, the coil of first winding and second winding is the structure in the double groove of stator core respectively, its end winding length is short, compare with existing distributed winding, usually can save wire rod about 20%, for thin thickness unshakable in one's determination, the motor that the winding span is big, it is more obvious to save the winding copper consumption, and this winding makes motor shaft to contraction in length, stator winding make the machine of having realized around, simplified work flow, improve stator production efficiency; In addition, the concentrated stator winding that the present invention adopts is compared the winding coefficient height with the concentrated winding of existing common single-phase capacitor running asynchronous machine, the teeth groove torque fluctuation is little, and electromagnetic torque pulsation is little, the electric efficiency height, the motor that can be fit to different number of poles different capacities, and motor performance is good, and cost is low.
Description of drawings
Fig. 1 partly cuts open figure for motor side-looking of the present invention;
Figure 21 is squirrel-cage rotor figure of the present invention;
Figure 22 is squirrel-cage bar asynchronous starting and permanent magnet rotor figure of the present invention;
Figure 23 is magnetic-resistance starting rotor figure of the present invention;
The structural representation of Fig. 3 stator of the present invention;
Figure 31 is the concentrated winding diagram of first winding in the motor of the present invention;
Figure 32 is the concentrated winding diagram of second winding in the motor of the present invention;
Figure 33 is the structural representation of the double groove flute profile of the depth of the present invention stator core;
Figure 34 is the connection layout between stator phase winding of the present invention;
Fig. 4 is the schematic diagram of existing distributed winding;
Figure 41 is the stator core schematic diagram of distributed winding;
Fig. 5 is that equal slot type is concentrated the winding schematic diagram;
Figure 51 is equal slot type stator core schematic diagram.
Embodiment
Embodiment 1:
The embodiment of the invention 1 discloses a kind of fan alternating current machine, be specially the single-phase concentrated winding permagnetic synchronous motor that fan is used, Fig. 1 partly cuts open figure for side-looking of the present invention, single-phase capacitor-operated motor of the present invention, include motor shaft 1, rotor 2, stator 3, front end housing 4 and rear end cap 5, its rotor 2 is sleeved on the motor shaft 1, stator 3 is sleeved on the outside of rotor 2, stator 3 outsides are front end housing 4 and the rear end cap 5 that fastens mutually, the two ends of motor shaft 1 by Bearing Installation on front end housing 4 and rear end cap 5, dark emissions groove 331 and shallow emissions groove 332 double grooves have wherein been made on the stator core 33 of stator 3, the winding of stator 3 is the centralized winding that includes first winding 31 and second winding 32, the coil of first winding 31 and second winding 32 is respectively in the dark emissions groove 331 and shallow emissions groove 332 of stator core 33, adjacent of the coil of first winding 31 on the dark emissions groove 331 forward and reverse around, adjacent of coil on second winding 32 on the shallow emissions groove 332 forward and reverse around, and in parallel behind second winding, the 32 series capacitance C with first winding 32.
Concentrate winding short more a lot of than distributed loop length around the length in one week of iron core teeth, can save wire rod about 20% usually, especially to iron core thin thickness, motor that the winding span is big, it is more obvious to save the winding copper consumption; In addition, this winding adopts the machine coiling, and stator is made and reduced common distributed winding coiling, line of fall operation, improves stator production efficiency; The motor integrated cost is had substantial degradation.
Embedded groove insulation in the double groove structure of the depth finished product electric machine iron core groove, slot liner completely cut off winding opens with iron core, has guaranteed enough electrical strengths.
This structure stator can require to adopt different rotor structures according to motor performance: can be used for rotor is the single-phase capacitor running asynchronous machine of squirrel-cage rotor, squirrel-cage rotor such as Figure 21; Can be used for rotor is the single-phase zone electric capacity AC permanent magnet synchronous motor of cage rotor starting, squirrel-cage bar asynchronous starting rotor such as Figure 22; Can be used for rotor is single-phase zone electric capacity magnetic-resistance starting AC permanent magnet synchronous motor, magnetic-resistance starting rotor such as Figure 23.
Figure 33 is 8 utmost point stator cores, at the motor of different numbers of poles, increases or reduce the corresponding number of teeth, is equally applicable to motors such as 2 utmost points, 4 utmost points, 6 utmost points; For the rotor of Figure 21, Figure 22, Figure 23, corresponding groove number or magnet number need adjust.
During the motor operation, at second winding, 32 series capacitance C, first winding 31 shown in Figure 31 is in parallel with second winding 32 that is in series with capacitor C, as shown in figure 34, inserts power supply again.Adjacent two concentrating coils of first winding 31 shown in Figure 31 are around on the contrary, and electric current flows through concentrates winding to produce impulsive magnetic field in iron core; Same reason, adjacent two concentrating coils of second winding 32 shown in Figure 32 are around on the contrary, and electric current flows through concentrates winding to produce another impulsive magnetic field in iron core; In the stator air gap, produce the magnetic field that certain phase angle difference is arranged separately with another set of first winding 31 shown in Figure 31 after second winding, the 32 serial connection capacitor C shown in Figure 32, two rotating magnetic fields are synthetic, form the elliptical rotating field, rotating magnetic field can drive the rotor rotation of Figure 21, Figure 22, Figure 23 respectively.
Embodiment 2:
Present embodiment is with the difference of embodiment 1: in parallel with second winding 2 behind first winding, the 31 series capacitance C.Other structure is identical with embodiment 1.
Claims (4)
1, a kind of single-phase capacitor-operated motor, include motor shaft (1), rotor (2), stator (3), front end housing (4) and rear end cap (5), its rotor (2) is sleeved on the motor shaft (1), stator (3) is sleeved on the outside of rotor (2), stator (3) outside is front end housing (4) and the rear end cap (5) that fastens mutually, the two ends of motor shaft (1) by Bearing Installation on front end housing (4) and rear end cap (5), it is characterized in that having made dark emissions groove (331) and the double groove of shallow emissions groove (332) on the stator core (33) of stator (3), the winding of stator (3) is for including the centralized winding of first winding (31) and second winding (32), the coil of first winding (31) and second winding (32) is respectively in the dark emissions groove (331) and shallow emissions groove (332) of stator core (33), adjacent of the coil of first winding (31) on the dark emissions groove (331) forward and reverse around, adjacent of coil on second winding (32) on the shallow emissions groove (332) forward and reverse around, and first winding (31) series capacitance (C) back is in parallel with second winding (32) or second winding (32) series capacitance (C) is afterwards in parallel with first winding (32).
2, single-phase capacitor-operated motor according to claim 1 is characterized in that above-mentioned rotor (2) is a squirrel-cage rotor.
3, single-phase capacitor-operated motor according to claim 1 is characterized in that above-mentioned rotor (2) is a squirrel-cage bar permanent magnetism asynchronous starting rotor.
4, single-phase capacitor-operated motor according to claim 1 is characterized in that above-mentioned rotor (2) is the magnetic-resistance starting rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910039290XA CN101557148A (en) | 2009-05-07 | 2009-05-07 | Single-phase capacitor running motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910039290XA CN101557148A (en) | 2009-05-07 | 2009-05-07 | Single-phase capacitor running motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101557148A true CN101557148A (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200910039290XA Pending CN101557148A (en) | 2009-05-07 | 2009-05-07 | Single-phase capacitor running motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101557148A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064648A (en) * | 2010-11-22 | 2011-05-18 | 华北电力大学 | Series capacitors-running single phase permanent magnet synchronous generator |
| CN105375719A (en) * | 2015-12-07 | 2016-03-02 | 佛山市南海区绿智电机设备有限公司 | Plastic-package single-phase alternating-current asynchronous motor |
| CN108199631A (en) * | 2018-02-06 | 2018-06-22 | 华北电力大学 | A kind of single-phase permanent magnet synchronous generator serial capacitors operating control device and method |
| CN110491612A (en) * | 2019-08-20 | 2019-11-22 | 赵小勇 | A kind of motor capacitor and single-phase motor |
-
2009
- 2009-05-07 CN CNA200910039290XA patent/CN101557148A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064648A (en) * | 2010-11-22 | 2011-05-18 | 华北电力大学 | Series capacitors-running single phase permanent magnet synchronous generator |
| CN105375719A (en) * | 2015-12-07 | 2016-03-02 | 佛山市南海区绿智电机设备有限公司 | Plastic-package single-phase alternating-current asynchronous motor |
| CN108199631A (en) * | 2018-02-06 | 2018-06-22 | 华北电力大学 | A kind of single-phase permanent magnet synchronous generator serial capacitors operating control device and method |
| CN110491612A (en) * | 2019-08-20 | 2019-11-22 | 赵小勇 | A kind of motor capacitor and single-phase motor |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20091014 |
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| CB02 | Change of applicant information |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: MIDEA GROUP Co.,Ltd. Address before: 528311 Penglai Road, Beijiao Town, Foshan District, Guangdong, China, Applicant before: Midea Group |
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Free format text: CORRECT: APPLICANT; FROM: MEIDI GROUP CO. LTD. TO: MIDEA GROUP CO., LTD. |