CN101521416A - Low-noise alternating current (AC) motor - Google Patents
Low-noise alternating current (AC) motor Download PDFInfo
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- CN101521416A CN101521416A CN200810122057A CN200810122057A CN101521416A CN 101521416 A CN101521416 A CN 101521416A CN 200810122057 A CN200810122057 A CN 200810122057A CN 200810122057 A CN200810122057 A CN 200810122057A CN 101521416 A CN101521416 A CN 101521416A
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Abstract
The invention relates to a low-noise alternating current (AC) motor which belongs to the technical field of the manufacturing of motors. The low-noise motor mainly comprises a motor shell (6), a front end cover (16) and a rear end cover (10) which are arranged at the both ends of the motor shell (6) and internally provided with a bearing (2), a rotor core (11) which is provided with a transmission shaft (5) and arranged in the motor shell (6), a plastic sealing stator (17) which consists of a stator core (7) and a winding (12) and is fixed at the inner wall of the motor shell (6), wherein a V-shaped chute(14) is arranged on the circle surface of the rotor core (11) ; the stator core (7) is formed by piling up stator core laminations (13) and 1-3 virtual grooves (15) are arranged on a pole shoe at the bottom of the stator core laminations (13); and wave elastomers (3) are respectively arranged between the bearing (2) and the front end cover (16) and between the bearing (2) and the rear end cover (10). The low-noise AC motor has reasonable whole structure design, provides a thought for lowering the noise of the motor in all aspects such as the rotor, the stator and the assembly of the rotor and the stator and the like and can effectively reduce operation noise of the motor and improve the product quality.
Description
Technical field
The present invention relates to a kind of low noise alternating current machine, belong to the manufacturing technology field of motor.
Background technology
Motor is used more and more wider in people's life, as air conditioner motor, motor for washer, refrigerator motor or the like, so wide application, big consumption like this, make the technology upgrading of motor that considerable economic be arranged, be upgraded to concentrated winding electric machine from traditional distributed winding motor, all can reduce greatly with iron amount and copper consumption, promote Enterprises'Competitiveness, but the noise problem of plastic packaging motor restricts its development always, how effectively to solve the noise problem of concentrating winding electric machine, become the obstacle of concentrating the winding electric machine development to go beyond.
Summary of the invention
The purpose of this invention is to provide a kind of reasonable in designly, simple in structure, can effectively improve the operation noise of motor, the low noise alternating current machine that improves the quality of products.
The present invention is the low noise alternating current machine, comprise casing, place front end housing and the rear end cap of establishing bearing in the casing two ends, place the rotor core of band power transmission shaft in the casing, be fixed in the plastic packaging stator that constitutes by stator core and winding on the casing inner wall, it is characterized in that offering the V-arrangement skewed slot on the periphery of rotor core, the angle of V-arrangement skewed slot is 83～122 degree; Stator core is made of the stator core stamping sheet closed assembly, offers virtual groove on the pole shoe of stator core stamping sheet bottom; Be respectively equipped with the ripple bullet between bearing and front end housing, the rear end cap.
The degree of depth of described V-arrangement skewed slot can be 12 ± 2mm.
The axis hole both sides of described rotor core also can offer the groove concentric with axis hole respectively, and the diameter of groove is 1.2～1.8 times of shaft hole diameter, and the degree of depth is 1.5～2mm.
The offer quantity of described virtual groove on pole shoe can be 1～3.
The two ends up and down of described casing also can be provided with installation foot and installing hole.
The present invention is directed to the source that motor noise takes place, the thinking of comprehensive reduction motor noise is provided from aspects such as rotor, stator, rotor general assemblies, can reduce the noise that motor produces greatly.Compared with prior art, have following outstanding advantage and good effect:
1, on rotor, by offer the V-arrangement skewed slot on the periphery of rotor core, cutting magnetic induction should caused axial force influence when having eliminated the rotor rotation, has improved the stress that rotor winding transverse current causes, can effectively reduce the operation noise of motor.Simultaneously, offer the groove concentric respectively with axis hole in the axis hole both sides of rotor core, in the time of effectively preventing rotor core die casting to the harmful effect of iron core end.
2, on stator, by add virtual groove on the stator core pole shoe, the operation principle of virtual groove is that the frequency of slot ripples is low, the amplitude height; The frequency height, amplitude is low, and the high more hot-tempered sound of amplitude is big more, makes the slot ripples frequency gets higher by adding virtual groove, and amplitude reduces, thereby reduces hot-tempered sound.
3, from the motor general assembly, the rotor axial play reduces motor noise when utilizing the ripple bullet to suppress motor rotation.Because the ripple bullet is given pretightning force of rolling bearing, also eliminated the noise that produces when turn round in the ball gap.
After the improvement of carrying out aspect above-mentioned three, effect of the present invention is significantly to have improved motor noise, makes motor rotation reach maximum low noise.
Description of drawings
Fig. 1 is an overall structure half sectional view of the present invention;
Fig. 2 is a rotor core structure half sectional view of the present invention;
Fig. 3 is a stator iron-core lamination structural representation of the present invention.
Among the figure, 1 is installation foot, and 2 is bearing, and 3 is the ripple bullet, 4 are E shape circle, and 5 is power transmission shaft, and 6 is casing, 7 is stator core, and 8 is installing hole, and 9 is the lead-out wire hole, 10 is rear end cap, and 11 is rotor core, and 12 is winding, 13 is stator core stamping sheet, and 14 is the V-arrangement skewed slot, and 15 is virtual groove, 16 is front end housing, and 17 is plastic packaging stator, and 18 is rotor recesses.
Embodiment
The present invention mainly comprises the casing 6 in band lead-out wire hole 9, place front end housing 16 and the rear end cap 10 of establishing bearing 2 in casing 6 two ends, place the rotor core 11 of band power transmission shaft 5 in the casing 6, be fixed in the plastic packaging stator 17 that is made of stator core 7 and winding 12 on casing 6 inwalls, offering angle a on the periphery of rotor core 11 is the V-arrangement skewed slot 14 of 83～122 degree; Stator core 7 is made of stator core stamping sheet 13 closed assemblies, offers 1～3 virtual groove 15 on the pole shoe of stator core stamping sheet 13 bottoms; Be respectively equipped with ripple bullet 3 between bearing 2 and front end housing 16, the rear end cap 10.The two ends up and down of casing 6 also are provided with installation foot 1 and installing hole 8.The degree of depth of V-arrangement skewed slot 14 is 12 ± 2mm; The axis hole both sides of rotor core 11 offer the groove 18 concentric with axis hole respectively, and the diameter of groove 18 is 1.2～1.8 times of shaft hole diameter, and the degree of depth is 1.5～2mm.
On high velocity ram machine, determine rotor core 11 height as required, because be V-arrangement skewed slot 14, determine the V-arrangement shape so need utilize two cover skewed slot controllers, the V-arrangement size can be selected according to parameter of electric machine performance, again aluminium liquid is injected the aluminium hole afterwards and carry out die casting, take off and touch, promptly finish the making of cast-aluminum rotor, carry out next one operation.To offer V-arrangement skewed slot 14 after the cast-aluminum rotor polishing, be pressed into the power transmission shaft 5 of band E shape circle 4, promptly make rotor core 11.
Determine the height of stator core 7 as required, stator core stamping sheet 13 is carried out die casting, aim at and link closely a little, after punching press is intact, guarantee that virtual groove 15 keeps neat, carries out iron core afterwards and pieces together circle.The dress lining, the major-minor coiling is pieced together circle and is shaped, and anchor ear is pressed into, outlet, intercoil connection connects, and makes stator core 7 at last, again stator core 7 is carried out plastic packaging, forms the plastic packaging assembly, promptly finishes the making of plastic packaging stator 17.
Carry out the motor assembling at last, earlier rotor core 11 is loaded onto bearing 2, behind the plastic packaging stator 17 of packing into; With high speed air gun flushing ripple bullet 3,, put into outside the bearing 2 again, guarantee to set level, load onto forward and backward end cap 16,10, be pressed into, promptly be assembled into low noise alternating current machine of the present invention with the machine of being pressed into to remove the dust of adhesion.
Claims (5)
1, a kind of low noise alternating current machine, comprise casing (6), place front end housing (16) and the rear end cap (10) of establishing bearing (2) in casing (6) two ends, place the rotor core (11) of band power transmission shaft (5) in the casing (6), be fixed in the plastic packaging stator (17) that constitutes by stator core (7) and winding (12) on casing (6) inwall, it is characterized in that offering V-arrangement skewed slot (14) on the periphery of rotor core (11), the angle a of V-arrangement skewed slot (14) is 83～122 degree; Stator core (7) is made of stator core stamping sheet (13) closed assembly, offers virtual groove (15) on the pole shoe of stator core stamping sheet (13) bottom; Be respectively equipped with ripple bullet (3) between bearing (2) and front end housing (16), the rear end cap (10).
2, by the described low noise alternating current machine of claim 1, the degree of depth that it is characterized in that described V-arrangement skewed slot (14) is 12 ± 2mm.
3, by the described low noise alternating current machine of claim 1, the axis hole both sides that it is characterized in that described rotor core (11) also offer the groove concentric with axis hole (18) respectively, the diameter of groove (18) is 1.2～1.8 times of shaft hole diameter, and the degree of depth is 1.5～2mm.
4, by the described low noise alternating current machine of claim 1, it is characterized in that the offer quantity of described virtual groove (15) on pole shoe is 1～3.
5, by the described low noise alternating current machine of claim 1, it is characterized in that the two ends up and down of described casing (6) also are provided with installation foot (1) and installing hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101220573A CN101521416B (en) | 2008-10-31 | 2008-10-31 | Low-noise alternating current (AC) motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101220573A CN101521416B (en) | 2008-10-31 | 2008-10-31 | Low-noise alternating current (AC) motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101521416A true CN101521416A (en) | 2009-09-02 |
| CN101521416B CN101521416B (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101220573A Expired - Fee Related CN101521416B (en) | 2008-10-31 | 2008-10-31 | Low-noise alternating current (AC) motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101521416B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647063A (en) * | 2012-04-25 | 2012-08-22 | 中国船舶重工集团公司第七0四研究所 | Low-vibration and low-noise small-and-medium-sized asynchronous motor |
| CN101702561B (en) * | 2009-11-16 | 2012-08-29 | 段学甫 | Direct-current magnetic reactance type driver |
| CN104600893A (en) * | 2014-12-29 | 2015-05-06 | 卧龙电气集团股份有限公司 | Plastic packaging motor with mounting foot grounding structure |
| CN106160279A (en) * | 2016-08-19 | 2016-11-23 | 湖州南洋电机有限公司 | A kind of V-groove rotor element of band ball bearing |
| CN106286346A (en) * | 2016-09-30 | 2017-01-04 | 依必安派特风机(上海)有限公司 | A kind of axial fan |
| CN108400659A (en) * | 2017-06-28 | 2018-08-14 | 奥克斯空调股份有限公司 | motor and air conditioner |
| CN109921540A (en) * | 2019-04-24 | 2019-06-21 | 安徽皖南新维电机有限公司 | A kind of noise-proofing ac motor and its manufacturing method |
| CN111835145A (en) * | 2020-08-10 | 2020-10-27 | 哈动国家水力发电设备工程技术研究中心有限公司 | Bidirectional full-through-flow permanent magnet generator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2407699B2 (en) * | 1974-02-18 | 1976-08-12 | Siemens AG, 1000 Berlin und 8000 München | FULLY METAL COMPENSATED DC MACHINE |
| JP2004201428A (en) * | 2002-12-19 | 2004-07-15 | Matsushita Electric Ind Co Ltd | Motor |
| EP1684400B1 (en) * | 2005-01-21 | 2008-05-14 | Hitachi, Ltd. | Rotating electric machine |
| FR2887697B1 (en) * | 2005-06-28 | 2010-11-19 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE HAVING LOSS-REDUCING MEANS |
| CN201282370Y (en) * | 2008-10-31 | 2009-07-29 | 卧龙电气集团股份有限公司 | Low noise AC motor |
-
2008
- 2008-10-31 CN CN2008101220573A patent/CN101521416B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702561B (en) * | 2009-11-16 | 2012-08-29 | 段学甫 | Direct-current magnetic reactance type driver |
| CN102647063A (en) * | 2012-04-25 | 2012-08-22 | 中国船舶重工集团公司第七0四研究所 | Low-vibration and low-noise small-and-medium-sized asynchronous motor |
| CN104600893A (en) * | 2014-12-29 | 2015-05-06 | 卧龙电气集团股份有限公司 | Plastic packaging motor with mounting foot grounding structure |
| CN106160279A (en) * | 2016-08-19 | 2016-11-23 | 湖州南洋电机有限公司 | A kind of V-groove rotor element of band ball bearing |
| CN106286346A (en) * | 2016-09-30 | 2017-01-04 | 依必安派特风机(上海)有限公司 | A kind of axial fan |
| CN106286346B (en) * | 2016-09-30 | 2019-11-08 | 依必安派特风机(上海)有限公司 | A kind of axial fan |
| CN108400659A (en) * | 2017-06-28 | 2018-08-14 | 奥克斯空调股份有限公司 | motor and air conditioner |
| CN109921540A (en) * | 2019-04-24 | 2019-06-21 | 安徽皖南新维电机有限公司 | A kind of noise-proofing ac motor and its manufacturing method |
| CN109921540B (en) * | 2019-04-24 | 2024-05-03 | 安徽皖南新维电机有限公司 | Noise-proof AC motor and its manufacturing method |
| CN111835145A (en) * | 2020-08-10 | 2020-10-27 | 哈动国家水力发电设备工程技术研究中心有限公司 | Bidirectional full-through-flow permanent magnet generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101521416B (en) | 2011-03-16 |
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Granted publication date: 20110316 Termination date: 20121031 |