CN205509797U - A mould for making direct current motor moulds magnet rotor - Google Patents
A mould for making direct current motor moulds magnet rotor Download PDFInfo
- Publication number
- CN205509797U CN205509797U CN201620259256.9U CN201620259256U CN205509797U CN 205509797 U CN205509797 U CN 205509797U CN 201620259256 U CN201620259256 U CN 201620259256U CN 205509797 U CN205509797 U CN 205509797U
- Authority
- CN
- China
- Prior art keywords
- earth permanent
- permanent magnet
- cover half
- inner shield
- magnetic field
- 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.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a produce that wave form magnetic surface is long -pending big, the magnetic flow is big, a mould for making direct current motor moulds magnet rotor of the standard sinusoidal wave rotor of infinite close, including cover half and movable mould, be provided with the magnetic field orientation device between cover half and the movable mould, the magnetic field orientation device includes outer retaining ring and interior retaining ring, the annular space who forms between outer retaining ring and the interior retaining ring fills there is the magnetic field orientation magnetite, the magnetic field orientation magnetite is formed around being in the same place by the rare earth permanent magnet that four sizes equal, adjacent rare earth permanent magnet's polarity is opposite gapped between and, a single rare earth permanent magnet is divided into an even number polarity identical's that the size equals rare earth permanent magnet unit again, be provided with the dead axle cover in the cover half, be provided with the guide pillar in the dead axle cover, be provided with the moving axis cover of intercommunication movable mould up end and lower terminal surface in the movable mould, the lower extreme of guide pillar passes the moving axis cover downwards. The utility model has the advantages that: the wave form magnetic surface that this rotor produced is long -pending big, and the magnetic flow is big more, and it is sinusoidal wave that the wave form is close to the standard more.
Description
Technical field
This utility model relates to a kind of mould for manufacturing plastic magnetic rotor of DC motor.
Background technology
Customary DC motor plastic magnetic rotor generally uses the high temperature resistant rare-earth permanent magnet of strong magnetic to produce alignment magnetic field producing when, and wherein rare-earth permanent magnet is four pieces and respectively in sector, adjacent rare-earth permanent magnet opposite polarity, as it is shown in figure 1, the waveform magnetic surface that the rotor so produced produces amasss little, magnetic flux is little, crest is the sharpest, after the installation of such rotor, the structure of performance is that Motor torque is little, and electric current is little, efficiency is low, power consumption is big, waveform deviation sine wave, shows as motor noise big.
Utility model content
Technical problem to be solved in the utility model is: provides a kind of and can produce that waveform magnetic surface is long-pending big, magnetic flux big, the mould for manufacturing plastic magnetic rotor of DC motor of infinite approach standard sine wave rotor.
nullFor solving above-mentioned technical problem，The technical solution adopted in the utility model is: a kind of mould for manufacturing plastic magnetic rotor of DC motor，Including cover half and be arranged on the dynamic model below cover half，Magnetic field orientating device it is provided with between described fixed half and moving half，Magnetic field orientating device includes outer back-up ring and inner shield ring，It is filled with magnetic field orientating Magnetitum in the annular space formed between outer back-up ring and inner shield ring，Magnetic field orientating Magnetitum is centered around by four equal-sized rare-earth permanent magnets and is formed together，The opposite polarity of adjacent rare-earth permanent magnet and between have gap，Single rare-earth permanent magnet is divided into again the rare earth permanent magnet body unit that the equal-sized polarity of even number is identical，The side of adjacent rare earth permanent magnet body unit is close together，Dead axle set it is provided with in cover half，It is provided with guide pillar in dead axle set，The upper end of cover half is provided with feedboard，The upper end of guide pillar is connected through dead axle set with feedboard，The lower end of dead axle set and the lower end of cover half are stretched in inner shield ring，Connection dynamic model upper surface and the moving axis set of lower surface it is provided with in dynamic model，The lower end of guide pillar is passed down through moving axis set，The upper surface of moving axis set 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 set，The surface of guide pillar、A rotor cavity is formed between the lower surface of the lower surface of cover half and dead axle set，The feeding-passage being provided with on cover half and connect feedboard and rotor cavity.
The thickness of described rare-earth permanent magnet is equal with inner shield ring height, the lower surface of cover half and the distance >=2.3mm of the spacing >=2.3mm of inner shield ring upper surface, the upper surface of dynamic model and inner shield ring lower surface.
The beneficial effects of the utility model are: the waveform magnetic surface that this rotor produces is long-pending big, and in the case of rare-earth permanent magnet width allows, the rare-earth permanent magnet element number being divided into is the most, magnetic surface is long-pending the biggest, magnetic flux is the biggest, and waveform is the closer to standard sine wave, after rotor installation, under identical table magnetic, moment of torsion is big, and electric current is little, and efficiency is high, energy-saving effect is obvious, and motor noise is little.
Accompanying drawing explanation
Fig. 1 is the oscillogram that background technology rotor produces；
Fig. 2 is that this utility model is for manufacturing the structure chart of the mould of plastic magnetic rotor of DC motor；
Fig. 3 is the magnetic field orientating device top view of Fig. 2；
Fig. 4 is the oscillogram that the rotor that this utility model is produced produces.
In figure: 1, cover half, 2, dynamic model, 3, outer back-up ring, 4, inner shield ring, 5, rare earth permanent magnet body unit, 6, dead axle set, 7, guide pillar, 8, feedboard, 9, moving axis set, 10, rotor cavity, 11, feeding-passage.
Detailed description of the invention
Below in conjunction with the accompanying drawings, specific embodiments of the present utility model is described in detail.
nullAs shown in Figures 2 and 3，Mould for manufacturing plastic magnetic rotor of DC motor described in the utility model，Including cover half 1 be arranged on the dynamic model 2 below cover half 1，It is provided with magnetic field orientating device between described cover half 1 and dynamic model 2，Magnetic field orientating device includes outer back-up ring 3 and inner shield ring 4，It is filled with magnetic field orientating Magnetitum in the annular space formed between outer back-up ring 3 and inner shield ring 4，Magnetic field orientating Magnetitum is centered around by four equal-sized rare-earth permanent magnets and is formed together，The opposite polarity of adjacent rare-earth permanent magnet and between have gap，Single rare-earth permanent magnet is divided into again the rare earth permanent magnet body unit 5 that the equal-sized polarity of even number is identical，The side of adjacent rare earth permanent magnet body unit 5 is close together，Dead axle set 6 it is provided with in cover half 1，It is provided with guide pillar 7 in dead axle set 6，The upper end of cover half 1 is provided with feedboard 8，The upper end of guide pillar 7 is connected through dead axle set 6 with feedboard 8，The lower end of dead axle set 6 and the lower end of cover half 1 are stretched in inner shield ring 4，The moving axis set 9 of connection dynamic model 2 upper surface and lower surface it is provided with in dynamic model 2，The lower end of guide pillar 7 is passed down through moving axis set 9，The upper surface of moving axis set 9 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 set 9，The surface of guide pillar 7、A rotor cavity 10 is formed between the lower surface of the lower surface of cover half 1 and dead axle set 6，The feeding-passage 11 being provided with on cover half 1 and connect feedboard 8 and rotor cavity 10.
The thickness of described rare-earth permanent magnet is the most equal with inner shield ring 4, the lower surface of cover half 1 and the distance >=2.3mm of the spacing >=2.3mm of inner shield ring 4 upper surface, the upper surface of dynamic model 2 and inner shield ring 4 lower surface.In so the both ends of the surface of rotor are also completely in the magnetic field that rare-earth permanent magnet produces, thus the magnetic powder arrangement being further ensured that in rotor is rationally, obtains qualified rotor.
Work process of the present utility model is: producing when, rare earth permanent magnet knows from experience the radiation magnetic circuit producing a Guan Bi, after the magnetic moulding material melted is entered in rotor cavity 10 by feedboard 8 and feeding-passage 11, ferromagnetic oxide powder in magnetic moulding material by radiation magnetic circuit effect under in rotor cavity 10 rearrangement, qualified rotor is just obtained after the cooling of equimagnetic moulding material, as shown in Figure 4, the waveform magnetic surface that this rotor produces is long-pending big, in the case of rare-earth permanent magnet width allows, the rare-earth permanent magnet element number being divided into is the most, magnetic surface is long-pending the biggest, magnetic flux is the biggest, waveform is the closer to standard sine wave, after rotor installation, under identical table magnetic, moment of torsion is big, electric current is little, efficiency is high, energy-saving effect is obvious, motor noise is little.
Claims (2)
- null1. for manufacturing the mould of plastic magnetic rotor of DC motor，Including cover half and be arranged on the dynamic model below cover half，It is characterized in that: between described fixed half and moving half, be provided with magnetic field orientating device，Magnetic field orientating device includes outer back-up ring and inner shield ring，It is filled with magnetic field orientating Magnetitum in the annular space formed between outer back-up ring and inner shield ring，Magnetic field orientating Magnetitum is centered around by four equal-sized rare-earth permanent magnets and is formed together，The opposite polarity of adjacent rare-earth permanent magnet and between have gap，Single rare-earth permanent magnet is divided into again the rare earth permanent magnet body unit that the equal-sized polarity of even number is identical，The side of adjacent rare earth permanent magnet body unit is close together，Dead axle set it is provided with in cover half，It is provided with guide pillar in dead axle set，The upper end of cover half is provided with feedboard，The upper end of guide pillar is connected through dead axle set with feedboard，The lower end of dead axle set and the lower end of cover half are stretched in inner shield ring，Connection dynamic model upper surface and the moving axis set of lower surface it is provided with in dynamic model，The lower end of guide pillar is passed down through moving axis set，The upper surface of moving axis set 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 set，The surface of guide pillar、A rotor cavity is formed between the lower surface of the lower surface of cover half and dead axle set，The feeding-passage being provided with on cover half and connect feedboard and rotor cavity.
- Mould for manufacturing plastic magnetic rotor of DC motor the most according to claim 1, it is characterized in that: the thickness of described rare-earth permanent magnet is equal with inner shield ring height, the lower surface of cover half and the distance >=2.3mm of the spacing >=2.3mm of inner shield ring upper surface, the upper surface of dynamic model and inner shield ring lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620259256.9U CN205509797U (en) | 2016-03-31 | 2016-03-31 | A mould for making direct current motor moulds magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620259256.9U CN205509797U (en) | 2016-03-31 | 2016-03-31 | A mould for making direct current motor moulds magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509797U true CN205509797U (en) | 2016-08-24 |
Family
ID=56734213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620259256.9U Expired - Fee Related CN205509797U (en) | 2016-03-31 | 2016-03-31 | A mould for making direct current motor moulds magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205509797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656262A (en) * | 2016-03-31 | 2016-06-08 | 张家港倍恩特磁塑科技有限公司 | Die used for manufacturing magneto-plastic rotor of direct-current motor |
-
2016
- 2016-03-31 CN CN201620259256.9U patent/CN205509797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656262A (en) * | 2016-03-31 | 2016-06-08 | 张家港倍恩特磁塑科技有限公司 | Die used for manufacturing magneto-plastic rotor of direct-current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |