CN105634217A - Mould for manufacturing radial multi-pole molded magnetic rotor of direct-current motor - Google Patents
Mould for manufacturing radial multi-pole molded magnetic rotor of direct-current motor Download PDFInfo
- Publication number
- CN105634217A CN105634217A CN201610194002.8A CN201610194002A CN105634217A CN 105634217 A CN105634217 A CN 105634217A CN 201610194002 A CN201610194002 A CN 201610194002A CN 105634217 A CN105634217 A CN 105634217A
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- China
- Prior art keywords
- ring
- magnetite
- mould
- magnetic field
- cover half
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a mould for manufacturing the radial multi-pole molded magnetic rotor of a direct-current motor. The mould includes a fixed mould and a movable mould; a magnetic field orientation device is arranged between the fixed mould and the movable mould; the magnetic field orientation device comprises an outer check ring and an inner check ring; an annular space formed between the outer check ring and the inner check ring is filled with magnetic field orientation magnets; the magnetic field orientation magnets include an inner-ring magnet loop and an outer-ring magnet loop; a fixed shaft sleeve is arranged in the fixed mould; a guide pillar is arranged in the fixed shaft sleeve; a movable shaft sleeve which is communicated with the upper end surface and the lower end surface of the movable mould is arranged in the movable mould; and the lower end of the guide pillar passes through the movable shaft sleeve. According to the mould of the invention, inner-ring magnets are subject to the excitation effect of outer-ring magnets, so that arc magnetic performance values of the inner-ring magnets can be identical, so that generated waves of the rotor can be square waves, and therefore, process requirements of waveform and performance of molded magnets can be satisfied.
Description
Technical field
The present invention relates to a kind of mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor.
Background technology
Conventional plastic magnetic rotor of DC motor usually adopts the radial magnetite of 6 pieces of NS to produce alignment magnetic field when producing, and the magnetite waveform of generation is sinusoidal wave, being also difficult to make square wave even if being magnetized by two times, cannot meet design requirement.
Summary of the invention
Technical problem to be solved by this invention is: the mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor providing a kind of magnetite waveform that can produce square wave.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor, comprise cover half and it is arranged on the dynamic model below cover half, magnetic field orientating device it is provided with between fixed half and moving half, magnetic field orientating device comprises outer back-up ring and inner shield ring, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring and inner shield ring, described magnetic field orientating magnetite comprises inner ring magnetite ring and outer ring magnetite ring, inner ring magnetite ring by six sizes equal and all in fan-shaped inner ring magnetite around and become, the opposite polarity of adjacent inner coil magnetite and between have gap, single inner ring magnetite is divided into again the identical inner ring magnetite unit of two equal-sized polarity, the divisional plane of two inner ring magnetite unit is close together, outer ring magnetite ring by six sizes equal and all in fan-shaped outer ring magnetite around and become, outer ring magnetite lays respectively at one to one outside inner ring magnetite, and the opposite polarity of corresponding outer ring magnetite and inner ring magnetite, it is provided with in cover half and determines axle sleeve, determine to be provided with in axle sleeve guide pillar, the upper end of cover half is provided with feed plate, the upper end of guide pillar is connected through determining axle sleeve with feed plate, the lower end of the lower end and cover half of determining axle sleeve stretches in inner shield ring, the moving axis cover being connected dynamic model upper surface and lower surface it is provided with in dynamic model, the lower end of guide pillar is passed down through moving axis cover, the upper surface of moving axis cover and dynamic model is stretched in inner shield ring, inner shield ring inwall, the upper surface of dynamic model, the upper surface of moving axis cover, the surface of guide pillar, a rotor cavity is formed between the lower surface of cover half and the lower surface determining axle sleeve, the feeding-passage being provided with on cover half and be connected feed plate and rotor cavity.
The thickness of described magnetic field orientating magnetite is equal with inner shield ring height, the lower surface of cover half and the spacing >=2.3mm of inner shield ring upper surface, the upper surface of dynamic model and the distance >=2.3mm of inner shield ring lower surface.
The radian of described outer ring magnetite is less than the radian of inner ring magnetite.
The invention has the beneficial effects as follows: inner ring magnetite is under the excitation effect of outer ring magnetite, thus makes inner ring magnetite circular arc magnetic property value identical, and the waveform of the rotor produced like this is square wave, thus meets the processing requirement of injection molded magnets waveform and performance.
Accompanying drawing explanation
Fig. 1 is the structure iron of the present invention for the manufacture of the mould of direct-current machine radial multi-pole plastic magnetic rotor;
Fig. 2 is magnetic field orientating device vertical view in Fig. 1.
In figure: 1, cover half, 2, dynamic model, 3, outer back-up ring, 4, inner shield ring, 5, inner ring magnetite, 6, outer ring magnetite, 7, determine axle sleeve, 8, guide pillar, 9, feed plate, 10, moving axis cover, 11, rotor cavity, 12, feeding-passage.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the invention scheme is described in detail.
As depicted in figs. 1 and 2, mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor of the present invention, comprise cover half 1 and it is arranged on the dynamic model 2 below cover half 1, magnetic field orientating device it is provided with between cover half 1 and dynamic model 2, magnetic field orientating device comprises outer back-up ring 3 and inner shield ring 4, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring 3 and inner shield ring 4, described magnetic field orientating magnetite comprises inner ring magnetite ring and outer ring magnetite ring, inner ring magnetite ring by six sizes equal and all in fan-shaped inner ring magnetite 5 around and become, the opposite polarity of adjacent inner coil magnetite 5 and between have gap, single inner ring magnetite 5 is divided into again the identical inner ring magnetite unit of two equal-sized polarity, the divisional plane of two inner ring magnetite unit is close together, outer ring magnetite ring by six sizes equal and all in fan-shaped outer ring magnetite 6 around and become, outer ring magnetite 6 lays respectively at one to one outside inner ring magnetite 5, and the opposite polarity of corresponding outer ring magnetite 6 and inner ring magnetite 5, it is provided with in cover half 1 and determines axle sleeve 7, determine to be provided with in axle sleeve 7 guide pillar 8, the upper end of cover half 1 is provided with feed plate 9, through determining, axle sleeve 7 is connected with feed plate 9 in the upper end of guide pillar 8, the lower end of the lower end and cover half 1 of determining axle sleeve 7 stretches in inner shield ring 4, the moving axis cover 10 being connected dynamic model 2 upper surface and lower surface it is provided with in dynamic model 2, the lower end of guide pillar 8 is passed down through moving axis cover 10, the upper surface of moving axis cover 10 and dynamic model 2 is stretched in inner shield ring 4, inner shield ring 4 inwall, the upper surface of dynamic model 2, the upper surface of moving axis cover 10, the surface of guide pillar 8, a rotor cavity 11 is formed between the lower surface of cover half 1 and the lower surface determining axle sleeve 7, the feeding-passage 12 being provided with on cover half 1 and be connected feed plate 9 and rotor cavity 11.
The thickness of described magnetic field orientating magnetite is highly equal with inner shield ring 4, the lower surface of cover half 1 and the spacing >=2.3mm of inner shield ring 4 upper surface, the upper surface of dynamic model 2 and the distance >=2.3mm of inner shield ring 4 lower surface. The both ends of the surface of such rotor are also in the magnetic field of magnetic field orientating magnetite completely, thus ensure the arrangement of the magnetic in rotor further rationally, obtain qualified rotor.
The radian of described outer ring magnetite 6 is less than the radian of inner ring magnetite 5.
It is an advantage of the invention that: inner ring magnetite 5 is under the excitation effect of outer ring magnetite 6, thus make inner ring magnetite 5 circular arc magnetic property value identical, the waveform moulding the rotor obtained after cooling under the effect of this magnetic field orientating magnetite after magnetic material enters rotor cavity 11 of such melting is square wave, thus meets the processing requirement of injection molded magnets waveform and performance.
Claims (3)
1. for the manufacture of the mould of direct-current machine radial multi-pole plastic magnetic rotor, comprise cover half and it is arranged on the dynamic model below cover half, magnetic field orientating device it is provided with between fixed half and moving half, magnetic field orientating device comprises outer back-up ring and inner shield ring, it is filled with magnetic field orientating magnetite in the annular space formed between outer back-up ring and inner shield ring, it is characterized in that: described magnetic field orientating magnetite comprises inner ring magnetite ring and outer ring magnetite ring, inner ring magnetite ring by six sizes equal and all in fan-shaped inner ring magnetite around and become, the opposite polarity of adjacent inner coil magnetite and between have gap, single inner ring magnetite is divided into again the identical inner ring magnetite unit of two equal-sized polarity, the divisional plane of two inner ring magnetite unit is close together, outer ring magnetite ring by six sizes equal and all in fan-shaped outer ring magnetite around and become, gap is had between the magnetite of adjacent outer ring, outer ring magnetite lays respectively at one to one outside inner ring magnetite, and the opposite polarity of corresponding outer ring magnetite and inner ring magnetite, it is provided with in cover half and determines axle sleeve, determine to be provided with in axle sleeve guide pillar, the upper end of cover half is provided with feed plate, the upper end of guide pillar is connected through determining axle sleeve with feed plate, the lower end of the lower end and cover half of determining axle sleeve stretches in inner shield ring, the moving axis cover being connected dynamic model upper surface and lower surface it is provided with in dynamic model, the lower end of guide pillar is passed down through moving axis cover, the upper surface of moving axis cover and dynamic model is stretched in inner shield ring, inner shield ring inwall, the upper surface of dynamic model, the upper surface of moving axis cover, the surface of guide pillar, a rotor cavity is formed between the lower surface of cover half and the lower surface determining axle sleeve, the feeding-passage being provided with on cover half and be connected feed plate and rotor cavity.
2. the mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor according to claim 1, it is characterized in that: the thickness of described magnetic field orientating magnetite is equal with inner shield ring height, the lower surface of cover half and the spacing >=2.3mm of inner shield ring upper surface, the upper surface of dynamic model and the distance >=2.3mm of inner shield ring lower surface.
3. the mould for the manufacture of direct-current machine radial multi-pole plastic magnetic rotor according to claim 1, it is characterised in that: the radian of described outer ring magnetite is less than the radian of inner ring magnetite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194002.8A CN105634217B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mold of direct current generator radial multi-pole plastic magnetic rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194002.8A CN105634217B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mold of direct current generator radial multi-pole plastic magnetic rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105634217A true CN105634217A (en) | 2016-06-01 |
| CN105634217B CN105634217B (en) | 2018-06-26 |
Family
ID=56048863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610194002.8A Active CN105634217B (en) | 2016-03-31 | 2016-03-31 | For manufacturing the mold of direct current generator radial multi-pole plastic magnetic rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105634217B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003332128A (en) * | 2002-05-15 | 2003-11-21 | Toshiba Corp | Mold for manufacturing magnet, method for manufacturing magnet, anisotropic magnet, and permanent magnet |
| CN201594784U (en) * | 2009-12-28 | 2010-09-29 | 金坛市磁性材料有限公司 | Stator magnetic tile forming die of permanent magnet direct current motor |
| US20150179320A1 (en) * | 2012-09-06 | 2015-06-25 | Mitsubishi Electric Corporation | Production method for permanent magnet, production device for permanent magnet, permanent magnet and rotating electrical device |
| CN105121078A (en) * | 2013-04-10 | 2015-12-02 | 大昭和精机株式会社 | Hydraulic chuck |
| CN205407529U (en) * | 2016-03-31 | 2016-07-27 | 张家港倍恩特磁塑科技有限公司 | A mould for making radial multipolar magnet rotor of moulding of direct current motor |
-
2016
- 2016-03-31 CN CN201610194002.8A patent/CN105634217B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003332128A (en) * | 2002-05-15 | 2003-11-21 | Toshiba Corp | Mold for manufacturing magnet, method for manufacturing magnet, anisotropic magnet, and permanent magnet |
| CN201594784U (en) * | 2009-12-28 | 2010-09-29 | 金坛市磁性材料有限公司 | Stator magnetic tile forming die of permanent magnet direct current motor |
| US20150179320A1 (en) * | 2012-09-06 | 2015-06-25 | Mitsubishi Electric Corporation | Production method for permanent magnet, production device for permanent magnet, permanent magnet and rotating electrical device |
| CN105121078A (en) * | 2013-04-10 | 2015-12-02 | 大昭和精机株式会社 | Hydraulic chuck |
| CN205407529U (en) * | 2016-03-31 | 2016-07-27 | 张家港倍恩特磁塑科技有限公司 | A mould for making radial multipolar magnet rotor of moulding of direct current motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460211A (en) * | 2019-07-16 | 2019-11-15 | 宁波韵升粘结磁体有限公司 | A kind of mold being molded permanent magnet for manufacturing anisotropy |
| CN110460211B (en) * | 2019-07-16 | 2022-02-15 | 宁波韵升粘结磁体有限公司 | Mold for manufacturing anisotropic injection molding permanent magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105634217B (en) | 2018-06-26 |
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