CN104333155A - Rotor iron core convenient to produce - Google Patents

Rotor iron core convenient to produce Download PDF

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Publication number
CN104333155A
CN104333155A CN201410567189.2A CN201410567189A CN104333155A CN 104333155 A CN104333155 A CN 104333155A CN 201410567189 A CN201410567189 A CN 201410567189A CN 104333155 A CN104333155 A CN 104333155A
Authority
CN
China
Prior art keywords
iron core
lamination
convenient
rivet hole
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410567189.2A
Other languages
Chinese (zh)
Inventor
周建华
严其斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU MOEN MOTOR CO Ltd
Original Assignee
HANGZHOU MOEN MOTOR CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU MOEN MOTOR CO Ltd filed Critical HANGZHOU MOEN MOTOR CO Ltd
Priority to CN201410567189.2A priority Critical patent/CN104333155A/en
Publication of CN104333155A publication Critical patent/CN104333155A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/32Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium

Abstract

The invention discloses a rotor iron core convenient to produce. The rotor iron core comprises a plurality of iron core sheets which are superposed together. Each iron core sheet is provided with a plurality of rivet holes convenient to run through and heat dissipation holes; the iron core sheets are uniformly distributed and superposed to form three iron core groups which are connected together. Each iron core group is formed by the plurality of same iron core sheets; each iron core sheet is provided with two groups of uniformly-distributed rivet holes; meanwhile, each iron core sheet is provided with two key grooves; and the iron core sheet is provided with a balance hole in the circumference of the heat dissipation hole. The rotor iron core has the advantages of reducing production labor hour, simplifying manufacture steps, reducing production cost wholly, being convenient for rivets to pass through, being stable in motor operation, being small in torque pulsation and motor noise, simplifying dynamic balance correction work load, and reducing manufacture cost of the motor.

Description

A kind of rotor core being convenient to manufacture
Technical field
The present invention relates to field of mechanical technique, about a kind of rotor, especially about a kind of rotor core being convenient to manufacture.
Background technology
Rotor core (magnetic core) plays the important and pivotal role inside whole motor, and it is used for increasing the magnetic flux of inductance coil, has realized the maximum conversion of electromagnetic power.Widely, stepping motor, AC/DC motor, reducing motor, external rotor electric machine, motor with cup rotor, synchronous asynchronous motor etc. has and utilizes more widely its range of application.For finished product motor, the effect that motor iron core plays inside motor accessory is more crucial.Want to allow the overall performance of a motor be improved, just need the performance promoting motor iron core.Usual this performance can adopt the material improving core stamping, adjusts the permeability of its material, and the mode such as size of iron loss controlled well solves.A good motor iron core needs, by the metal stamping die of precision, to adopt the techniques such as automatic riveting, then utilize the punching press of high precision punch table out.The benefit done like this is, farthest can ensure the integrity degree of the plane of its product, farthest ensure its Product Precision.Visible, the finished product motor that will ensure at present, requires all higher to the technology and equipment of its whole manufacture, so not only cause production cost high, and good ratio defective product is low, most of rotor core still easily occurs that vibration amplitude is large, the defects such as balance quality is not ideal enough.
Although as Chinese patent literature discloses a kind of rotor core structure [patent No.: 200920045258.8] of motor, it comprises in squirrel cage induction motor, can reduce motor electromagnetic noise.It mainly comprises first paragraph rotor core and second segment rotor core, and feature is: described first paragraph rotor core and second segment rotor core adopt short-circuited conducting sleeve to be connected.The present invention is simple, compact and reasonable for structure, and action effect is obvious; When not change structure material, under guarantee motor Energetic characteristic acceptance condition, adopt and be provided with short-circuited conducting sleeve on rotor core; When motor starting, two sections of rotor cores direction is due on the contrary, and the harmonic wave that the electromagnetic noise produced produces is cancelled out each other, and slackens electromagnetic noise.Although it has simple, compact and reasonable for structure, action effect is obvious; When not change structure material, under guarantee motor Energetic characteristic acceptance condition, adopt and be provided with short-circuited conducting sleeve on rotor core; When motor starting, two sections of rotor cores direction is due to the series of advantages such as contrary; But it is due to the restriction of structure, 3 iron core group therefore still needing multiple mould to make in the process manufactured form a rotor core group by mutual stack combinations again, cause its production efficiency low, do not possess the market competitiveness.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of reasonable in design, the rotor core that long service life, stability are high.
For achieving the above object, present invention employs following technical proposal: a kind of rotor core being convenient to manufacture, comprise the lamination that several are superimposed, described lamination is provided with several and is convenient to through rivet hole and louvre, described lamination uniform distribution is overlapped into three iron core group linked together, and is followed successively by the first iron core group, the second iron core group and the 3rd iron core group; It is characterized in that, each iron core group forms by several laminations, described each lamination is equipped with two groups of uniform rivet holes, often organizing rivet hole is 4, each lamination is provided with two keyways simultaneously, two keyways in a circumferential direction in 45 °-55 ° distributions, a rivet hole wherein in one group of rivet hole and one of them keyway in same radius, a rivet hole of other one group of rivet hole then with another one keyway in same radius.
Described lamination is provided with several louvres.
Described lamination is circumferentially provided with a balancing hole at louvre, rotor core can be made to assemble the amount of unbalance after joining and reduce.
In described two groups uniform rivet holes, the adjacent uniform rivet hole of each uniform rivet hole and other a group is 2 °-8 ° with the angle of the straight line formed with lamination SMIS respectively.
Compared with prior art, the invention has the advantages that: the invention has the advantages that: 3 iron core group that 1, the design of rivet hole and keyway can make a secondary Lamination mould make form a rotor core group by mutual stack combinations, reduction manufacturing man-hours, simplify manufacturing step, overall reduction manufacturing cost; 2, rivet hole and the design of keyway can run through with rivet after 3 rotor core groups can be made to superpose; 3, that motor can be made to run is more steady for the rotor core structure of syllogic, torque pulsation and motor noise less.4, balancing hole be arranged so that the amount of unbalance of rotor core group in assembling process significantly reduces, simplify the workload of dynamic balance calibration, reduce the manufacturing cost of motor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
As shown in Figure 1, a kind of rotor core being convenient to manufacture, comprise the lamination 1 that several are superimposed, described lamination 1 is provided with several and is convenient to through rivet hole 2 and louvre 3, described lamination 1 uniform distribution is overlapped into three iron core group linked together, and is followed successively by the first iron core group, the second iron core group and the 3rd iron core group; The rotor structure of three iron core group compositions can make motor run more steadily, and torque pulsation is less.Each iron core group forms by several laminations 1, described each lamination 1 is equipped with two groups of uniform rivet holes 2, often organizing rivet hole is 4, each lamination 1 is provided with two keyways simultaneously, two keyways are in a circumferential direction in 45 ° of distributions, a rivet hole 2 wherein in one group of rivet hole and one of them keyway are in same radius, a rivet hole 2 of other one group of rivet hole and another one keyway are in same radius, lamination is circumferentially provided with a balancing hole 4 at louvre 3, rotor core can be made to assemble the amount of unbalance after joining reduce.Often organizing uniform rivet hole 2 is evenly distributed on lamination 1, and in these two groups uniform rivet holes 2, each uniform rivet hole 2 and the adjacent uniform rivet hole 2 of other a group are 2 ° with the angle of the straight line formed with lamination 1 SMIS respectively.Be provided with the groove being convenient to install inside described iron core group, be namely provided with groove in each lamination 1, just can realize forming iron core group by aligned recesses.In addition, iron core group is provided with balancing hole 4.If whole rotor vibration amplitude is excessive, configure corresponding balance weight by balancing hole 4, just can reduce vibrations.
Embodiment two
As shown in Figure 1, a kind of rotor core being convenient to manufacture, comprise the lamination 1 that several are superimposed, described lamination 1 is provided with several and is convenient to through rivet hole 2 and louvre 3, described lamination 1 uniform distribution is overlapped into three iron core group linked together, and is followed successively by the first iron core group, the second iron core group and the 3rd iron core group, each iron core group forms by several laminations 1, described each lamination 1 is equipped with two groups of uniform rivet holes 2, often organizing rivet hole 2 is 4, each lamination 1 is provided with two keyways simultaneously, two keyways are in a circumferential direction in 55 ° of distributions, a rivet hole 2 wherein in one group of rivet hole and one of them keyway are in same radius, a rivet hole 2 of other one group of rivet hole and another one keyway are in same radius, lamination 1 is circumferentially provided with a balancing hole 4 at louvre, rotor core can be made to assemble the amount of unbalance after joining reduce.Often organizing uniform rivet hole 2 is evenly distributed on lamination 1, and in these two groups uniform rivet holes 2, each uniform rivet hole 2 and the adjacent uniform rivet hole 2 of other a group are 8 ° with the angle of the straight line formed with lamination 1 SMIS respectively.Be provided with the groove being convenient to install inside described iron core group, be namely provided with groove in each lamination, just can realize forming iron core group by aligned recesses.In addition, iron core group is provided with balancing hole 4.If whole rotor vibration amplitude is excessive, configure corresponding balance weight by balancing hole, just can reduce vibrations.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. be convenient to the rotor core of manufacture for one kind, comprise the lamination that several are superimposed, described lamination is provided with several and is convenient to through rivet hole, described lamination uniform distribution is overlapped into three iron core group linked together, and is followed successively by the first iron core group, the second iron core group and the 3rd iron core group; It is characterized in that, each iron core group forms by several laminations, described each lamination is equipped with two groups of uniform rivet holes, often organizing rivet hole is 4, each lamination is provided with two keyways simultaneously, two keyways in a circumferential direction in 45 °-55 ° distributions, a rivet hole wherein in one group of rivet hole and one of them keyway in same radius, a rivet hole of other one group of rivet hole then with another one keyway in same radius.
2., according to a kind of rotor core being convenient to manufacture described in claim 1, it is characterized in that, described lamination is provided with several louvres.
3. according to a kind of rotor core being convenient to manufacture described in claim 1, it is characterized in that, lamination is circumferentially provided with a balancing hole at louvre, rotor core can be made to assemble the amount of unbalance after joining and reduce.
4. according to a kind of rotor core being convenient to manufacture described in claim 1, it is characterized in that, in described two groups uniform rivet holes, the adjacent uniform rivet hole of each uniform rivet hole and other a group is 2 °-8 ° with the angle of the straight line formed with lamination SMIS respectively.
CN201410567189.2A 2014-10-21 2014-10-21 Rotor iron core convenient to produce Pending CN104333155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410567189.2A CN104333155A (en) 2014-10-21 2014-10-21 Rotor iron core convenient to produce

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410567189.2A CN104333155A (en) 2014-10-21 2014-10-21 Rotor iron core convenient to produce

Publications (1)

Publication Number Publication Date
CN104333155A true CN104333155A (en) 2015-02-04

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CN201410567189.2A Pending CN104333155A (en) 2014-10-21 2014-10-21 Rotor iron core convenient to produce

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104617695A (en) * 2015-02-11 2015-05-13 苏州和鑫电气股份有限公司 Permanent magnet motor single-key-groove rotor punching sheet capable of being used at multiple angles
CN112134425A (en) * 2020-08-12 2020-12-25 浙江迪贝电气股份有限公司 Method for manufacturing rotor core of permanent magnet motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009296841A (en) * 2008-06-09 2009-12-17 Toyota Motor Corp Rotary electric machine
CN101917075A (en) * 2010-05-18 2010-12-15 李春光 Punching sheet magnetic pole permanent magnet motor rotor
CN202384865U (en) * 2011-12-15 2012-08-15 南昌康富电机技术有限公司 Overall rotor sheet structure of high-speed generator non-salient pole
CN203180674U (en) * 2013-03-28 2013-09-04 新动力电机(荆州)有限公司 Permanent-magnet synchronous motor rotor beneficial to dynamic balance of rotor
CN203850942U (en) * 2014-05-28 2014-09-24 华域汽车电动系统有限公司 Four-segmented inclined-pole permanent magnet motor rotor formed by single punching sheets
CN204168021U (en) * 2014-10-21 2015-02-18 杭州摩恩电机有限公司 A kind of rotor core being convenient to manufacture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009296841A (en) * 2008-06-09 2009-12-17 Toyota Motor Corp Rotary electric machine
CN101917075A (en) * 2010-05-18 2010-12-15 李春光 Punching sheet magnetic pole permanent magnet motor rotor
CN202384865U (en) * 2011-12-15 2012-08-15 南昌康富电机技术有限公司 Overall rotor sheet structure of high-speed generator non-salient pole
CN203180674U (en) * 2013-03-28 2013-09-04 新动力电机(荆州)有限公司 Permanent-magnet synchronous motor rotor beneficial to dynamic balance of rotor
CN203850942U (en) * 2014-05-28 2014-09-24 华域汽车电动系统有限公司 Four-segmented inclined-pole permanent magnet motor rotor formed by single punching sheets
CN204168021U (en) * 2014-10-21 2015-02-18 杭州摩恩电机有限公司 A kind of rotor core being convenient to manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
戴文进、徐龙权: "《电机学》", 29 February 2008 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104617695A (en) * 2015-02-11 2015-05-13 苏州和鑫电气股份有限公司 Permanent magnet motor single-key-groove rotor punching sheet capable of being used at multiple angles
CN112134425A (en) * 2020-08-12 2020-12-25 浙江迪贝电气股份有限公司 Method for manufacturing rotor core of permanent magnet motor

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Application publication date: 20150204