CN105048669A - Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor - Google Patents

Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor Download PDF

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Publication number
CN105048669A
CN105048669A CN201510472920.8A CN201510472920A CN105048669A CN 105048669 A CN105048669 A CN 105048669A CN 201510472920 A CN201510472920 A CN 201510472920A CN 105048669 A CN105048669 A CN 105048669A
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CN
China
Prior art keywords
rotor
core
pole
magnetic pole
magnetic
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Pending
Application number
CN201510472920.8A
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Chinese (zh)
Inventor
石倩倩
文敬怀
董玉财
邱岳
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Rizhao Dongfang Motor Co Ltd
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Rizhao Dongfang 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.)
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Application filed by Rizhao Dongfang Motor Co Ltd filed Critical Rizhao Dongfang Motor Co Ltd
Priority to CN201510472920.8A priority Critical patent/CN105048669A/en
Publication of CN105048669A publication Critical patent/CN105048669A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel embedded rotor of a permanent magnet motor and a processing method of the novel embedded rotor, relates to the technical field of permanent magnet motors, and particularly belongs to a novel embedded rotor of the permanent magnet motor and a processing method of the novel embedded rotor. The novel embedded rotor comprises a rotating shaft (1), a rotor iron core and a rotor bracket (6), wherein the rotating shaft (1) and the rotor bracket (6) are arranged together; axial constraint on the rotor bracket (6) is realized through a rotor heat sleeve ring (5); the rotor iron core is formed by circular splicing of magnetic pole cores (3) of the rotor bracket; a magnetic pole fixing key groove (10) is formed in the middle of each magnetic pole core; inner grooves are formed in two sides of each magnetic pole core; a magnetic steel groove (9) is composed of two adjacent inner grooves; a magnetic pole fixing key (4) is inlaid into each magnetic pole fixing key groove (10); and magnetic steel (7) is inlaid into each magnetic steel groove (9). The novel embedded rotor has the beneficial effects that the production efficiency is improved; the manufacturing cost is reduced; and volume production is facilitated.

Description

The embedded novel rotor of permanent magnet motor and processing method thereof
Technical field
The present invention relates to permanent magnet motor technical field, belong to the embedded novel rotor of a kind of permanent magnet motor and processing method thereof especially.
Technical background
Magneto adopts embedded structure can solve the centrifugal force problem of surface-mount type and tangential peeling force problem, but existing embedded structure magnetic leakage factor is large, and need to adopt accordingly every magnetic measure, the manufacturing process of motor and manufacturing cost comparatively radial structure increase to some extent.Existing is the principle utilizing the magnetic field of ferromagnetic material saturated every magnetic measure, the object reducing leakage field is reached in order to allow leakage field saturation effects, designer can will produce the narrow as far as possible of the place design of leakage field, cause the weak spot on lamination structure like this, huge centrifugal force can be produced in large torque or high-revolving situation lower magnetic steel, the cracked situation of rotor punching can be caused, reduce running reliability of motor.
Existing rotor punching adopts full slice system rotor structure, then utilize special equipment and manually laminate the whole rotor core of rear formation, the rotor punching structure of this form, stock utilization is low, die life is short, and very high to the closed assembly required precision of iron core, the large weight of volume is large, be unfavorable for transhipment and assembling, be more unfavorable for batch production.
Summary of the invention
The object of the present invention is to provide the embedded novel rotor of a kind of permanent magnet motor and processing method thereof, overcome the deficiency of permanent magnet motor built-in tangential structure magnetic circuit, to reach the object improving punching stock utilization.
The embedded novel rotor of a kind of permanent magnet motor provided by the present invention, has rotating shaft, rotor core and rotor field spider; It is characterized in that, described rotating shaft and rotor field spider are assembled together, and realize axial constraint by rotor shrink ring to rotor field spider; Described rotor core is spliced to form by the pole core circular row being fixed on rotor field spider, and pole core is overrided to form by pole lamination again; Have magnetic pole in the middle part of described pole core and fix keyway, pole core both sides are inner groovy, and two adjacent inner groovies form magnet steel groove; Wherein, magnetic pole retainingf key is embedded in magnetic pole and fixes in keyway, and magnet steel is embedded in magnet steel groove; In addition, described rotor core two ends are provided with magnetic pole baffle plate.
Described pole core is formed every magnetic air gap after being spliced into rotor core, the described working gas gap length being greater than motor every magnetic air gap width.
Provided by the present invention. the processing method of the embedded novel rotor of a kind of permanent magnet motor, is characterized in that, comprise the following steps:
1) the direct punching of pole lamination laminates into pole core, and magnetic pole retainingf key is penetrated magnetic pole fixes in keyway, and entirety carries out the processing of boring hank knotting;
2) rotating shaft and rotor field spider is assembled;
3) independently will be assemblied in successively on rotor field spider by pole core, form complete rotor core;
4) the magnetic pole baffle plate of rotor core one end is installed, magnet steel is embedded in magnet steel groove, after having assembled, other end magnetic pole baffle plate is installed.
The embedded novel rotor of permanent magnet motor provided by the present invention and processing method thereof, the large distance air gap that split-type structural is formed, realize between adjacent two magnetic poles every magnetic, reduce the magnetic leakage factor of magneto built-in tangential magnetic circuit, improve magnet steel utilance, do not need additionally to carry out, every magnetic measure, decreasing manufacturing process, reducing manufacturing cost; Meanwhile, avoid rotor core because of the structural weak point produced every magnetic, improve the operational reliability of motor; Pole lamination stock utilization is high, and manufacture simple, the die life of punching extends greatly, pole core transhipment, easy to assembly, and in sum, the present invention has and enhances productivity, and reduces manufacturing cost, is beneficial to the good effect of batch production.
Accompanying drawing explanation
Fig. 1 is the embedded new type rotor structure schematic diagram of permanent magnet motor;
Fig. 2 is permanent magnet motor embedded novel rotor pole core structural representation;
Fig. 3 is permanent magnet motor embedded novel rotor rotor core structure schematic diagram.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the embedded novel rotor of permanent magnet motor provided by the present invention, comprises rotating shaft 1, rotor core and rotor field spider 6.Wherein, together with described rotating shaft 1 and rotor field spider 6 are linked and packed by hot cover process, key, and by rotor shrink ring 5 pairs of rotor field spider 6 axial constraints; Described rotor core is spliced to form by the pole core circular row being fixed on rotor field spider, and pole core 3 is overrided to form by the direct punching of pole lamination 8 again.Have magnetic pole in the middle part of described pole core and fix keyway 10, pole core both sides are inner groovy, and two adjacent inner groovies form magnet steel groove 9, and wherein, magnetic pole retainingf key 4 is embedded in magnetic pole and fixes in keyway 10, and magnet steel 7 is embedded in magnet steel groove 9; In addition, described rotor core two ends are provided with magnetic pole baffle plate 2.
As shown in Figure 3, pole core 3 is bolted on rotor field spider 6, forms complete rotor core.Pole core 3 is formed every magnetic air gap after being spliced into rotor core, and its width is respectively b2 and b3, and b2 and b3 is much larger than the working gas gap length of motor, reaches every magnetic effect.
The processing method of the embedded novel rotor of permanent magnet motor, comprises the following steps:
1) pole lamination 8 directly punching laminate into pole core 3, and magnetic pole retainingf key 4 is penetrated magnetic pole and fix in keyway 10, entirety is carried out boring hank knotting and is processed;
2) rotating shaft 1 and rotor field spider 6 is assembled;
3) will independently be assemblied on rotor field spider 6 successively by pole core 3, form complete rotor core;
4) the magnetic pole baffle plate 2 of rotor core one end is installed, magnet steel 7 is embedded in magnet steel groove 9, after having assembled, other end magnetic pole baffle plate is installed.

Claims (3)

1. the embedded novel rotor of permanent magnet motor, there is rotating shaft (1), rotor core, rotor field spider (6), it is characterized in that, described rotating shaft (1) and rotor field spider (6) are assembled together, and realize axial constraint by rotor shrink ring (5) to rotor field spider (6); Described rotor core is spliced to form by pole core (3) circular row being fixed on rotor field spider, and pole core (3) is overrided to form by pole lamination (8) again; There is in the middle part of described pole core magnetic pole and fix keyway (10), pole core both sides are inner groovy, and two adjacent inner groovies form magnet steel groove (9), wherein, magnetic pole retainingf key (4) is embedded in magnetic pole and fixes in keyway (10), and magnet steel (7) is embedded in magnet steel groove (9); Described rotor core two ends are provided with magnetic pole baffle plate (2).
2. the embedded novel rotor of a kind of permanent magnet motor according to claim 1, is further characterized in that, is formed every magnetic air gap after described pole core (3) is spliced into rotor core, the described working gas gap length being greater than motor every magnetic air gap width.
3. a processing method for the embedded novel rotor of permanent magnet motor, is characterized in that, comprise the following steps:
1) pole lamination (8) directly punching laminate into pole core (3), and magnetic pole retainingf key (4) is penetrated magnetic pole and fix in keyway (10), entirety is carried out boring hank knotting and is processed;
2) rotating shaft (1) and rotor field spider (6) is assembled;
3) will independently be assemblied on rotor field spider (6) successively by pole core (3), form complete rotor core;
4) the magnetic pole baffle plate (2) of rotor core one end is installed, magnet steel (7) is embedded in magnet steel groove (9), after having assembled, other end magnetic pole baffle plate (2) is installed.
CN201510472920.8A 2015-08-05 2015-08-05 Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor Pending CN105048669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510472920.8A CN105048669A (en) 2015-08-05 2015-08-05 Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510472920.8A CN105048669A (en) 2015-08-05 2015-08-05 Novel embedded rotor of permanent magnet motor and processing method of novel embedded rotor

Publications (1)

Publication Number Publication Date
CN105048669A true CN105048669A (en) 2015-11-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921530A (en) * 2019-03-19 2019-06-21 广东威灵汽车部件有限公司 Rotor, motor, water pump and vehicle
CN112436689A (en) * 2020-12-18 2021-03-02 山东理工大学 Production method of nested drive motor salient pole rotor with backstop function

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2403109A2 (en) * 2010-06-29 2012-01-04 Schaeffler Technologies AG & Co. KG Magnetic assembly, in particular for an electric machine and and method for producing an assembly
CN102412644A (en) * 2011-11-21 2012-04-11 沈阳工业大学 Rotor magnetic pole structure for permanent motor
CN203301269U (en) * 2013-05-20 2013-11-20 毕再兴 Rotor of DC motor and DC motor provided therewith
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
CN204089390U (en) * 2014-09-03 2015-01-07 新安乃达驱动技术(上海)有限公司 Adopt the rotor structure of brushless motor of Interior permanent magnet cutting orientation magnetizing
CN104393730A (en) * 2013-08-05 2015-03-04 通用电气公司 Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof
CN105305681A (en) * 2014-07-17 2016-02-03 西门子公司 Rotor package of rotating motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2403109A2 (en) * 2010-06-29 2012-01-04 Schaeffler Technologies AG & Co. KG Magnetic assembly, in particular for an electric machine and and method for producing an assembly
CN102412644A (en) * 2011-11-21 2012-04-11 沈阳工业大学 Rotor magnetic pole structure for permanent motor
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
CN203301269U (en) * 2013-05-20 2013-11-20 毕再兴 Rotor of DC motor and DC motor provided therewith
CN104393730A (en) * 2013-08-05 2015-03-04 通用电气公司 Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof
CN105305681A (en) * 2014-07-17 2016-02-03 西门子公司 Rotor package of rotating motor
CN204089390U (en) * 2014-09-03 2015-01-07 新安乃达驱动技术(上海)有限公司 Adopt the rotor structure of brushless motor of Interior permanent magnet cutting orientation magnetizing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921530A (en) * 2019-03-19 2019-06-21 广东威灵汽车部件有限公司 Rotor, motor, water pump and vehicle
CN112436689A (en) * 2020-12-18 2021-03-02 山东理工大学 Production method of nested drive motor salient pole rotor with backstop function
CN112436689B (en) * 2020-12-18 2022-09-13 山东理工大学 Production method of nested drive motor salient pole rotor with backstop function

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Application publication date: 20151111