CN105024469A - Rotor iron core, rotor and motor - Google Patents
Rotor iron core, rotor and motor Download PDFInfo
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- CN105024469A CN105024469A CN201510511695.4A CN201510511695A CN105024469A CN 105024469 A CN105024469 A CN 105024469A CN 201510511695 A CN201510511695 A CN 201510511695A CN 105024469 A CN105024469 A CN 105024469A
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Abstract
The invention is applicable to the field of motors, and discloses a rotor iron core, a rotor and a motor. The rotor iron core comprises an iron core body and is characterized in that the iron core body is formed by laminating at least two iron core split bodies along the axial direction, each iron core split body is provided with a plurality of magnetic slots which are arranged at intervals along the circumferential direction, and the adjacent iron core split bodies are laminated and connected in a mode that center lines of the magnetic slots are mutually staggered by an angle in the circumferential direction. According to the invention, at least two iron core split bodies are adopted to be laminated along the axial direction so as to form the iron core body, and the magnetic slot center lines of the iron core split bodies are enabled to be mutually staggered by an angle in the circumferential direction, thereby enabling magnetic steel, which are accommodated and positioned in each magnetic slot, to form a magnetic pole which is bent and extends along the axial direction of the rotor iron core, and thus effectively reducing the rotor slot pitch of the motor. In addition, the rotor disclosed by the invention is simple in structure and easy to manufacture and assemble.
Description
Technical field
The invention belongs to machine field, particularly relate to rotor core, there is the rotor of this rotor core and there is the motor of this rotor.
Background technology
In a kind of motor of conventional art, rotor adopts Interior permanent magnet structural design, and namely its rotor core is provided with the outer magnetic bridge being resisted against magnet steel radial outside, like this, due to the existence of outer magnetic bridge, therefore makes rotor leakage serious; And its rotor to adopt straight groove structure (rotor along the straight path parallel with rotor core central shaft extend to the other end from one end of rotor core) design also unreasonable, thus make this motor exist in a particular application rotor torque greatly, motor fluctuation of service, problem that motor operational shock noise is large.
In order to solve the technical problem existed in above-mentioned conventional art motor, prior art proposes scheme magnet steel groove being designed to skewed slot, and the skew lines track that namely its rotor edge and rotor core central shaft are a slanted angle extends to the other end from one end of rotor core.It utilizes the design of flume structure, although reach the object reducing rotor torque, and, still there is manufacture and the large problem of assembly difficulty at embody rule in this rotor structure.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide rotor core, rotor and motor, which solve the existing technical problem that rotor existence manufactures and assembly difficulty is large reducing rotor torque.
For achieving the above object, the technical solution used in the present invention is: rotor core, comprise iron core body, described iron core body is overrided to form vertically by least two iron core splits, each described iron core split is all provided with several circumferentially spaced magnetic grooves, each adjacent described iron core split is carried out laminating connection in mutually the stagger mode of an angle of circumference with the center line of each described magnetic groove.
Preferably, each described iron core split being also provided with several divides outer rim the recessed outer magnetic bridge breach extending to each described magnetic groove from described iron core respectively.
Preferably, each described iron core split all comprises rotor yoke that circumference closes and several are convexly equipped in rotor tooth on described rotor yoke, all encloses the described magnetic groove of formation one described in arbitrary neighborhood between rotor tooth.
Preferably, be also provided with between described rotor yoke with described rotor tooth quantity identical with described rotor tooth quantity every magnetic bridge, respectively described to be connected between each described rotor tooth and described rotor yoke every magnetic bridge.
Preferably, the described thickness extended along described iron core split circumference every magnetic bridge is 0.5 ~ 1.5mm.
Preferably, each described iron core split all also comprises the quantity support convex tendon identical with described magnetic groove quantity, and each described support convex tendon is convexly equipped in each described magnetic groove respectively along described rotor yoke, and each described support convex tendon and respectively described to be circumferentially arranged alternately every magnetic bridge.
Preferably, above-mentioned rotor core also comprises and is injected and molded in this external outer injection moulding portion of described iron core.
Preferably, being communicated with so that the technique groove of described outer injection moulding portion injection mo(u)lding with each described magnetic groove respectively away from the end face of described rotor yoke is all also arranged with of each described rotor tooth.
Further, present invention also offers rotor, it comprises above-mentioned rotor core and several accommodating magnet steel be positioned in each described magnetic groove respectively.
Further, present invention also offers motor, it stator comprising above-mentioned rotor and coordinate with described rotor turns.
Rotor core provided by the invention, rotor and motor, laminate vertically by adopting at least two pieces of iron core splits and form iron core body, and make each adjacent iron cores split carry out laminating connection in mutually the stagger mode of an angle of circumference with the center line of each magnetic groove, like this, magnetic groove by each iron core split is staggered mutually is connected to form the rotor that axially bending is arranged, thus make the accommodating magnet steel be positioned in each magnetic groove form the oblique magnetic pole axially bending extension along rotor core, and then effectively reduce the rotor tooth pitch of motor.To be staggered in circumference by magnetic groove in each iron core split realize because it form oblique magnetic pole, therefore, the manufacture of its rotor core and assembling all than being easier to, easy.
Accompanying drawing explanation
Fig. 1 is the perspective view of the iron core body that the embodiment of the present invention provides;
Fig. 2 is the main view plane schematic diagram of the iron core body that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It should be noted that, when element is called as on " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.When an element is known as " connection " another element, it can be directly connect another element or may there is centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower, the top in following examples, end, is only relative concept or be reference with the normal operating condition of product each other, and should not be regarded as have restrictive.
As depicted in figs. 1 and 2, the rotor core that the embodiment of the present invention provides, comprise iron core body 1, iron core body 1 is overrided to form vertically by least two iron core splits 11, each iron core split 11 is all provided with several circumferentially spaced magnetic grooves 111, each adjacent iron cores split 11 is carried out laminating connection in mutually the stagger mode of an angle of circumference with the center line of each magnetic groove 111, and the magnetic groove 111 that in each iron core split 11, center line staggers mutually is combined to form the rotor 110 that the bending of several axis along iron core body 1 extends, namely rotor 110 is equivalent to extend to the other end along a bending structural line track from one end of rotor core, herein, rotor 110 can be an overall continuous print groove and also can be the discontinuous groove of segmentation.The rotor core that the embodiment of the present invention provides, laminate vertically by adopting at least two pieces of iron core splits 11 and form iron core body 1, and make each adjacent iron cores split 11 carry out laminating connection in mutually the stagger mode of an angle of circumference with the center line of each magnetic groove 111, like this, magnetic groove 111 by each iron core split 11 is staggered mutually is connected to form the rotor 110 that axially bending is arranged, thus make the accommodating magnet steel (not shown) be positioned in each magnetic groove 111 be axially bend along rotor core the oblique magnetic pole extended, and then effectively reduce rotor 110 tooth pitch of motor.Realized in the circumference angle that staggers by magnetic groove 111 in each iron core split 11 because it forms oblique magnetic pole, therefore, the manufacture of its rotor core and assembling all than being easier to, easy.
Particularly, rotor 110 is axially combined to form along iron core body 1 by the magnetic groove 111 that different iron core split 11 is staggered mutually, in the present embodiment, each magnetic groove 111 being combined to form rotor 110 is interconnected, and namely rotor 110 is an overall continuous print groove.Of course, in embody rule, each magnetic groove 111 being combined to form rotor 110 may also be disconnected, and namely rotor 110 is the discontinuous groove of segmentation.
Preferably, magnetic groove 111 extends to the other end along one and the straight path of iron core split 11 centerline axis parallel from one end of iron core split 11, namely the magnetic groove 111 in each iron core split 11 is all straight trough, like this, can make the structure of each magnetic groove 111 all fairly simple, be easy to manufacture shaping, thus be beneficial to and reduce the manufacture difficulty of rotor core.
Preferably, iron core body 1 is only overrided to form vertically by two iron core splits 11, like this, both the rotor 110 of circumference bending extension had been formed by these two iron core splits 11, the relatively simple for structure of rotor core can be made again, also can be beneficial to the manufacture and assembly technology that simplify rotor core simultaneously, and then be beneficial to the manufacture and assembly difficulty that reduce rotor core.Of course, in embody rule, iron core body 1 also can be laminated by plural iron core split 11 and make.
Preferably, laminating each iron core split 11 forming iron core body 1 is the identical structure of structure, and magnetic groove 111 center line of adjacent iron cores split 11 only need be made mutually to stagger an angle when laminating in order to the rotor 110 forming axially bending, like this, in embody rule, be equivalent to only to manufacture a kind of iron core split 11, several this kind of iron core split 11 just can be adopted to laminate the iron core body 1 being formed and have the rotor 110 of axial bending, thus decrease the material variety quantity forming rotor core, be beneficial to the manufacture process simplifying rotor core.Of coursing, in embody rule, also can be set to the not identical structure of structure by laminating each iron core split 11 forming iron core body 1.
Preferably, each iron core split 11 is also provided with several respectively from the recessed outer magnetic bridge breach 112 extending to each magnetic groove 111 of iron core split 11 outward flange.The setting of outer magnetic bridge breach 112, be equivalent to the outer magnetic bridge opening rotor core, make the magnetic linkage of magnet steel more through stator winding linkage, and then decrease the leakage field of rotor, improve the effective rate of utilization of rotor flux dramatically, finally reach the object improving motor fan-out capability.
Preferably, each iron core split 11 all comprises rotor yoke 113 that circumference closes and several are convexly equipped in rotor tooth 114 on rotor yoke 113, all encloses formation magnetic groove 111 between arbitrary neighborhood rotor tooth 114.The rotor core that the present embodiment provides is inner rotor core (rotor core is positioned at the inner side of stator core), and each rotor tooth 114 is all located at the outside of rotor yoke 113.
Preferably, be also provided with between rotor yoke 113 with rotor tooth 114 quantity identical with rotor tooth 114 quantity every magnetic bridge 115, be respectively connected between each rotor tooth 114 and rotor yoke 113 every magnetic bridge 115.Every the setting of magnetic bridge 115, the effect connecting rotor tooth 114 and rotor yoke 113 can be played, and the effect reducing rotor leakage and strengthen the anti-demagnetization capability of motor can be played.
Preferably, the thickness extended along iron core split 11 circumference every magnetic bridge 115 is 0.5 ~ 1.5mm.Adopt this numerical Design scope, the circumferential thickness b every magnetic bridge 115 can be made thinner, thus make the magnetic on magnetic bridge 115 close more saturated than being easier to, effectively serve the effect every magnetic, and then reach the object reducing the magnetic flux leakage that magnet steel produces on rotor core.
More preferably, the thickness b extended along rotor core circumference every magnetic bridge 115 is 1mm, and like this, it is better every magnetic effect that it obtains, and the manufacture difficulty that can reduce every magnetic bridge 115 and the Forming Quality improved every magnetic bridge 115.
Preferably, each iron core split 11 all also comprises the quantity support convex tendon 116 identical with magnetic groove 111 quantity, and each convex tendon 116 that supports is convexly equipped in each magnetic groove 111 respectively along rotor yoke 113, and respectively supports convex tendon 116 and be respectively circumferentially arranged alternately at interval every magnetic bridge 115.Support the setting of convex tendon 116, supporting and location effect can be played to magnet steel on the one hand, on the other hand because its thickness is also thinner, therefore also play certain minimizing rotor leakage effect.
Preferably, iron core split 11 is overrided to form by punching, and its manufacture process is simple, convenient, and cost is low, is beneficial to production in enormous quantities.Certainly, in embody rule, iron core split 11 also can integrally casting shaping.
Preferably, above-mentioned rotor core also comprises the outer injection moulding portion (not shown) be injected and molded in outside iron core body 1.The setting in outer injection moulding portion, the structural strength of rotor core can be improved, and effectively can improve magnet steel and be installed on solid and reliable property in magnetic groove 111, thus the situation preventing high speed operation of motor lower magnetic steel to fly out in magnetic groove 111 occurs, and improves stability and security reliability that motor runs.
Preferably, the formation material in outer injection moulding portion specifically can be non-magnetic plastic material, like this, the formation in outer injection moulding portion can be made can not to cause the increase of rotor leakage, effectively ensure that the magnetic flux utilance of rotor.
Preferably, being communicated with each magnetic groove 111 so that the technique groove 117 of outer injection moulding portion injection mo(u)lding respectively away from the end face of rotor yoke 113 is all also arranged with of each rotor tooth 114, namely each stator tooth is provided with two technique grooves 117, and the circumferential both sides being communicated with the magnetic groove 111 of these stator tooth both sides respectively that two technique grooves 117 are located at this stator tooth are respectively arranged.The setting of technique groove 117, can be convenient to the injection mo(u)lding in injection moulding portion on the one hand, can be beneficial to the material cost reducing rotor core on the other hand.
Further, the embodiment of the present invention additionally provides rotor, and it comprises above-mentioned rotor core and several accommodating magnet steel (not shown) be positioned in each magnetic groove 111 respectively, and the quantity of magnet steel is identical with the quantity of magnetic groove 111.The magnet steel that the present embodiment provides is preferably straight plate, its structure is simple, be easy to manufacture, and due to magnetic groove 111 each in different iron core split 11 be mutually stagger an angle, therefore, each magnet steel in different iron core split 11 is extended in bending in the axial direction, namely define the magnetic pole of bending, thus effectively reduce rotor 110 tooth pitch, improve the performance of rotor.
Further, the embodiment of the present invention additionally provides motor, it shell (not shown) comprising above-mentioned rotor, the stator (not shown) coordinated with rotor turns and be located at outside rotor and stator.The motor that the present embodiment provides is specially magneto, and it is owing to have employed above-mentioned rotor, therefore, effectively reduce the leakage field of rotor on the one hand, improve the fan-out capability of motor; Simplify the structure of motor on the other hand, reduce the manufacturing difficulty of motor.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. rotor core, comprise iron core body, it is characterized in that: described iron core body is overrided to form vertically by least two iron core splits, each described iron core split is all provided with several circumferentially spaced magnetic grooves, each adjacent described iron core split is carried out laminating connection in mutually the stagger mode of an angle of circumference with the center line of each described magnetic groove.
2. rotor core as claimed in claim 1, is characterized in that: each described iron core split is also provided with several and divides outer rim the recessed outer magnetic bridge breach extending to each described magnetic groove from described iron core respectively.
3. rotor core as claimed in claim 1 or 2, it is characterized in that: each described iron core split all comprises rotor yoke that circumference closes and several are convexly equipped in rotor tooth on described rotor yoke, all encloses the described magnetic groove of formation one described in arbitrary neighborhood between rotor tooth.
4. rotor core as claimed in claim 3, is characterized in that: be also provided with between described rotor yoke with described rotor tooth quantity identical with described rotor tooth quantity every magnetic bridge, be connected between each described rotor tooth and described rotor yoke every magnetic bridge described in each.
5. rotor core as claimed in claim 4, is characterized in that: the described thickness extended along described iron core split circumference every magnetic bridge is 0.5 ~ 1.5mm.
6. rotor core as claimed in claim 4, it is characterized in that: each described iron core split all also comprises the quantity support convex tendon identical with described magnetic groove quantity, each described support convex tendon is convexly equipped in each described magnetic groove respectively along described rotor yoke, and each described support convex tendon and respectively described to be circumferentially arranged alternately every magnetic bridge.
7. rotor core as claimed in claim 3, is characterized in that: also comprise and be injected and molded in this external outer injection moulding portion of described iron core.
8. rotor core as claimed in claim 7, is characterized in that: being communicated with so that the technique groove of described outer injection moulding portion injection mo(u)lding with each described magnetic groove respectively away from the end face of described rotor yoke is all also arranged with of each described rotor tooth.
9. rotor, is characterized in that: comprise rotor core as described in any one of claim 1 to 8 and several respectively accommodating be positioned each as described in magnet steel in magnetic groove.
10. motor, is characterized in that: the stator comprising rotor as claimed in claim 9 and coordinate with described rotor turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511695.4A CN105024469A (en) | 2015-08-19 | 2015-08-19 | Rotor iron core, rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511695.4A CN105024469A (en) | 2015-08-19 | 2015-08-19 | Rotor iron core, rotor and motor |
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| Publication Number | Publication Date |
|---|---|
| CN105024469A true CN105024469A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511695.4A Pending CN105024469A (en) | 2015-08-19 | 2015-08-19 | Rotor iron core, rotor and motor |
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| Country | Link |
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| CN (1) | CN105024469A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357026A (en) * | 2016-09-26 | 2017-01-25 | 威灵（芜湖）电机制造有限公司 | Self-staring motor rotor, self-starting permanent magnet motor and household electric appliance |
| CN112583153A (en) * | 2019-09-30 | 2021-03-30 | 安徽威灵汽车部件有限公司 | Rotor of motor, driving motor and vehicle |
| CN113193673A (en) * | 2018-05-31 | 2021-07-30 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN113364175A (en) * | 2021-05-25 | 2021-09-07 | 浙江亚特电器有限公司 | Modularized embedded motor rotor and motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1223658A1 (en) * | 2001-01-12 | 2002-07-17 | Siemens Aktiengesellschaft | Permanent magnet Rotor with reduced flux leakage |
| CN102545425A (en) * | 2010-12-28 | 2012-07-04 | 中山大洋电机股份有限公司 | Rotor assembly structure of skewed magnetic stripe |
| CN102638119A (en) * | 2012-04-24 | 2012-08-15 | 河北科技大学 | Permanent magnet motor rotor with small output torque ripple |
| CN104011975A (en) * | 2011-12-23 | 2014-08-27 | 博泽沃尔兹堡汽车零部件有限公司 | Rotor blade set of electric motor |
-
2015
- 2015-08-19 CN CN201510511695.4A patent/CN105024469A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1223658A1 (en) * | 2001-01-12 | 2002-07-17 | Siemens Aktiengesellschaft | Permanent magnet Rotor with reduced flux leakage |
| CN102545425A (en) * | 2010-12-28 | 2012-07-04 | 中山大洋电机股份有限公司 | Rotor assembly structure of skewed magnetic stripe |
| CN104011975A (en) * | 2011-12-23 | 2014-08-27 | 博泽沃尔兹堡汽车零部件有限公司 | Rotor blade set of electric motor |
| CN102638119A (en) * | 2012-04-24 | 2012-08-15 | 河北科技大学 | Permanent magnet motor rotor with small output torque ripple |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357026A (en) * | 2016-09-26 | 2017-01-25 | 威灵（芜湖）电机制造有限公司 | Self-staring motor rotor, self-starting permanent magnet motor and household electric appliance |
| CN106357026B (en) * | 2016-09-26 | 2019-10-25 | 威灵（芜湖）电机制造有限公司 | Self-starting rotor, self-starting magneto and household electrical appliance |
| CN113193673A (en) * | 2018-05-31 | 2021-07-30 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN112583153A (en) * | 2019-09-30 | 2021-03-30 | 安徽威灵汽车部件有限公司 | Rotor of motor, driving motor and vehicle |
| CN112583153B (en) * | 2019-09-30 | 2022-03-01 | 安徽威灵汽车部件有限公司 | Rotor of motor, driving motor and vehicle |
| CN113364175A (en) * | 2021-05-25 | 2021-09-07 | 浙江亚特电器有限公司 | Modularized embedded motor rotor and motor |
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Application publication date: 20151104 |