CN204991340U - Multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body - Google Patents
Multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body Download PDFInfo
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- CN204991340U CN204991340U CN201520740142.1U CN201520740142U CN204991340U CN 204991340 U CN204991340 U CN 204991340U CN 201520740142 U CN201520740142 U CN 201520740142U CN 204991340 U CN204991340 U CN 204991340U
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Abstract
The utility model relates to a multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body belongs to miniature permanent -magnet machine technical field. The device including the U -shaped that adopts electrician's pure iron to make magnetize yoke, the ring of waiting to magnetize, the coil that magnetizes, step -by -step rotary mechanism, the power magnetizes. U -shaped that the solid was placed magnetizes the yoke and can be based on the number of poles that magnetizes, the magnetic ring thickness of the ring of waiting to magnetize, different its shapes of adjustment of magnet magnetism material coercive force with highly provide the purpose that the coil that magnetizes of placing needs in sufficient space took the magnetic saturation to. The U -shaped magnetizes the yoke to be installed on rotary platform and can be automatically extremely to divide other to magnetize to each of magnetic ring, realizes the automation of magnetizing, and the device is applicable in various sizes, and magnetizing of various number of poles magnetic rings has advantages such as adaptability is good.
Description
Technical field
The utility model belongs to minitype permanent magnet motor technical field, particularly a kind of minitype permanent magnet motor ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer.
Background technology
The magnetic shoe that the many employings of tradition minitype permanent magnet motor are mounted in stator or rotor yoke produces excitation field, such a construction increases the complexity of assembly technology, and is unfavorable for the performance optimizing motor.In recent years, the multi-pole ring magnet excitation technology of appearance simplifies manufacturing process, and optimizes the performance of motor.In Chinese patent CN1193170A, a kind of device magnetized to circular permanent magnet is proposed, this device can magnetize to two poles or quadrupole magnet, and the object reducing cogging torque of permanent magnet motor is reached by well-designed cartridge shape, but this magnetizer to magnetize cartridge owing to will place in magnet ring inside, therefore can not be little and the magnet ring that radial thickness is large carries out multipole magnetization to small size especially internal diameter.According to the knowledge of Electrical Motor, rotating speed and the magnetic pole logarithm of motor are inversely proportional to, and slowspeed machine adopts multi-pole magnet-ring, can save mechanical reduction gear like this, very easy during use, therefore need perfect further to the research of bead multipole magnetization.
In Chinese patent CN1264140A, propose a kind of multi-electrode fixture for magnetization, adopt the equally distributed more than one pair of chuck that magnetizes in magnet ring outer radial to carry out entirety to magnet ring to magnetize, although the cartridge that magnetizes is arranged on the periphery of magnet ring by this structure, but for magnetizing more than 10 extremely above magnet rings, magnetic pole installing space is still aobvious narrow and small, can not ensure high-coercivity magnet to fill saturated, therefore can not realize the saturation magnetization to multi-pole magnet.
Summary of the invention
Goal of the invention:
For the shortcoming and defect that current Miniature permanent magnet magnet ring multipole magnetization device exists, the purpose of this utility model is to provide a kind of micromachine permanent magnetic ring multipole segmentation magnetizer, by adopting three-dimensional magnetic structure, respectively each magnetic pole one section of one section of ground of magnet ring is magnetized respectively, the energy that single magnet charger is provided is all for the magnetic saturation of a magnetic pole, guarantee the magnetic efficiency of magnet ring, many number of magnetic poles are realized to reach, magnet ring thickness is high, the magnetically saturated object of the magnet ring that magnetic material coercive force is high.
Technical scheme:
A kind of ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer, it is characterized in that: this device comprise U-shaped magnetize yoke, magnetizing coil, stepping rotating mechanism, magnetize power supply, wherein the U-shaped yoke that magnetizes comprises magnetic yoke body, interior pole-face and outer pole-face, interior pole-face and outer pole-face are respectively towards the inner side and outer side of ring to be magnetized, magnetic yoke body forms magnetic conductive loop together with inside and outside pole-face, and magnetizing coil is installed in the space that U-shaped magnetizes in the middle of yoke two-arm; The U-shaped yoke that magnetizes spatially is placed, and bottom has an axle stretched out to be connected with stepping rotating mechanism; The power supply that magnetizes connects magnetizing coil provides pulsed field magnetization electric current for magnetizing coil.
The magnetize interior pole-face of yoke and outer pole-face of U-shaped makes arc-shaped respectively, and in the face of the inner side and outer side of ring to be magnetized, U-shaped region shared by yoke pole-face circular arc of magnetizing is π/p, and wherein p is the number of pole-pairs of ring to be magnetized.
The U-shaped yoke that magnetizes is overrided to form by electrical pure iron or the good electrical sheet of magnetic property.
Magnetizing coil is that hollow copper wire is wrapped in U-shaped and magnetizes in yoke.
The angle that stepping rotating mechanism rotates at every turn is the number of poles of 2 π/magnet ring.
Magnetize power supply by capacitor array pulsed field magnetization electric power generating composition.
Magnetizing coil is wrapped in U-shaped and magnetizes on the right arm of yoke, and the two ends of magnetizing coil are connected to magnetizes on power supply.
The U-shaped yoke that magnetizes is arranged on rotation platform, and ring to be magnetized is along with the rotation platform synchronous rotary of its underpart.
Advantage and effect:
The three-dimensional U-shaped placed magnetizes yoke can according to the number of poles that magnetizes of ring to be magnetized, magnet ring thickness, and magnet magnetic material coercitive difference its shape of adjustment and the magnetizing coil highly providing enough space placements to need take magnetically saturated object to.U-shaped yoke is arranged on rotation platform can automatically divide other to magnetize to each pole of magnet ring, and realize the automation of magnetizing, this device is applicable to various sizes, magnetizing of various number of poles magnet ring, has the advantage that adaptability is good.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is that U-shaped magnetizes yoke schematic diagram.
Description of reference numerals:
1.U shape magnetize yoke, 2. ring to be magnetized, 3. magnetizing coil, 4. to magnetize pole-face, 13. outer pole-faces in power supply, 5. stepping rotating mechanism, 6. rotation platform, 11. magnetic yoke bodies, 12..
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
The utility model provides a kind of micromachine permanent magnetic ring multipole segmentation magnetizer, by adopting three-dimensional magnetic structure, respectively each magnetic pole one section of one section of ground of magnet ring is magnetized respectively, the energy that single magnet charger is provided is all for the magnetic saturation of a magnetic pole, guarantee the magnetic efficiency of magnet ring, thus realizing many number of magnetic poles, magnet ring thickness is high, the magnetic saturation of the magnet ring that magnetic material coercive force is high.
As depicted in figs. 1 and 2, described ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer comprise U-shaped magnetize yoke 1, magnetizing coil 3, stepping rotating mechanism 5, magnetize power supply 4, wherein the U-shaped yoke 1 that magnetizes comprises magnetic yoke body 11, interior pole-face 12 and outer pole-face 13, interior pole-face 12 and outer pole-face 13 are respectively towards the inner side and outer side of ring 2 to be magnetized, magnetic yoke body 11 forms magnetic conductive loop together with inside and outside pole-face, and magnetizing coil 3 is installed in the space that U-shaped magnetizes in the middle of yoke two-arm; The U-shaped yoke that magnetizes spatially is placed, and bottom has an axle stretched out to be connected with stepping rotating mechanism 5, and the angle of ring 2 to be magnetized adjusts by stepping rotating mechanism 5; The power supply 4 that magnetizes connects magnetizing coil 3 for magnetizing coil provides pulsed field magnetization electric current.Produce high-intensity magnetic field, treat the ring that magnetizes and carry out saturation magnetization.To magnetize magnetic field for alternately producing N, S pole at inside and outside pole-face, the power supply that magnetizes can be magnetizing coil adjustment polarity as required.
The magnetize interior pole-face 12 of yoke 1 and outer pole-face 13 of U-shaped makes arc-shaped respectively, in the face of the inner side and outer side of ring 2 to be magnetized, pole-face takes up space and can determine according to body number of poles to be magnetized, according to the difference of circumpolar logarithm to be magnetized, the angle that U-shaped magnetizes shared by yoke pole-face circular arc is also different, U-shaped region shared by yoke 1 pole-face circular arc of magnetizing is π/p, and wherein p is the number of pole-pairs of ring to be magnetized.
The U-shaped yoke 1 that magnetizes is overrided to form by electrical pure iron or the good electrical sheet of magnetic property.
Magnetizing coil 3 magnetizes in yoke 1 for hollow copper wire is wrapped in U-shaped.The space that U-shaped magnetizes in the middle of yoke two-arm provides installing space for magnetizing coil 3; Magnetizing coil 2 adopts hollow copper pipe coiling on U-shaped magnetizes yoke to form; Magnetizing coil 3 for hollow copper wire can be beneficial to heat radiation.
Stepping rotating mechanism 5 can adjust the angle of each stepping according to the number of poles of body to be magnetized, the angle that stepping rotating mechanism 5 rotates at every turn is the number of poles of 2 π/magnet ring.(such as magnetize to four pole magnet rings, the angle that step rotation device rotates at every turn is 90 °, and concerning an ends of the earth magnet ring magnet ring, the angle that step rotation device rotates at every turn is 45 °)
Magnetize power supply 4 by capacitor array pulsed field magnetization electric power generating composition, and this power supply can adjust the polarity that magnetizes as required automatically.
Magnetizing coil 3 is wrapped in U-shaped and magnetizes on the right arm of yoke 1, and the two ends of magnetizing coil 3 are connected to magnetizes on power supply 4.
The U-shaped yoke 1 that magnetizes is arranged on rotation platform 6, and ring 2 to be magnetized is along with rotation platform 6 synchronous rotary of its underpart.
Magnetizing coil is arranged on U-shaped and magnetizes in yoke, U-shaped in a vertical angle the spending of plane that yoke and ring to be magnetized place of magnetizing is placed, arc-shaped is made respectively in the both sides of yoke, in the face of the interior outside of ring to be magnetized, U-shaped yoke space pole-face (circular arc) shared by relative with both sides inside and outside magnet ring of magnetizing is π/p, and wherein p is the number of pole-pairs of ring to be magnetized.
Arrange the wire diameter of magnetizing coil and the number of turn according to the difference of ring thickness to be magnetized and the number of number of pole-pairs to produce sufficiently high magnetic field and make magnet ring generation magnetic saturation.Place the space of magnetizing coil to improve, what the three-dimensional yoke that magnetizes of placing can design very highly meets the demands, this just without placement parallel inside and outside magnet ring magnetize yoke time lay the restriction in magnetizing coil space.Magnetize two circular arc pole-faces and the ring to be magnetized of yoke of described U-shaped leaves a very little gap, and this gap can not be too large in order to avoid leakage field is too much, again can not be too little in order to avoid hinder the relative motion of yoke and ring to be magnetized.
For improving permanent magnetic ring saturation magnetic induction to be filled, the U-shaped yoke that magnetizes is made up of electrical pure iron.
Described magnetizing coil 3 is made up of smooth being wound in U-shaped yoke of hollow copper pipe, is connected with circulating water to cool magnetizer when magnetizing in hollow copper pipe.
The power supply 4 that magnetizes adopts and carries out trickle charge to capacitor array and put soon, reaches the object producing powerful pulsed magnetic field instantaneously.
U-shaped magnetizes inside yoke has an axle stretched out to be fixed on stepping rotating mechanism, and when after the magnetization completing a pole, namely yoke forwards the position at next magnetic pole place to.Here to note carrying out before next magnetic pole magnetizes, needing the polarity of magnetizing coil to exchange, complete magnetizing of this magnetic pole to produce with contrary magnetic field above.By that analogy, respectively N-S-N-is completed to magnet ring ... magnetizing of-S-N-S pole.
Stepping rotating mechanism and U-shaped yoke link together, and rotate for axle does stepping with ring central axis to be magnetized, the angle often walking rotation changes with the change of number of magnetic poles, and as filled 24 pole magnet rings, step angle just sets π/12 radian.When forwarding next pole to, before beginning of magnetizing, need the polarity changing magnetizing coil, namely original positive pole receives the negative pole of the power supply that magnetizes, and negative pole reconfiguration is originally to the positive pole of the power supply that magnetizes at every turn.Then control capacitor array electric discharge of magnetizing, produce powerful pulse current in magnetizing coil, moment produces sufficiently high magnetic field between U-shaped yoke two pole-faces, and magnetization permanent magnetic ring, completes and magnetize.Just forward next pole to again after completing the magnetizing of this pole, repeat previous step.
Claims (8)
1. a ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer, it is characterized in that: this device comprises U-shaped and to magnetize yoke (1), magnetizing coil (3), stepping rotating mechanism (5), the power supply that magnetizes (4), wherein the U-shaped yoke (1) that magnetizes comprises magnetic yoke body (11), interior pole-face (12) and outer pole-face (13), interior pole-face (12) and outer pole-face (13) are respectively towards the inner side and outer side of ring to be magnetized (2), magnetic yoke body (11) forms magnetic conductive loop together with inside and outside pole-face, and magnetizing coil (3) is installed in the space that U-shaped magnetizes in the middle of yoke two-arm; The U-shaped yoke that magnetizes spatially is placed, and bottom has an axle stretched out to be connected with stepping rotating mechanism (5); The power supply (4) that magnetizes connects magnetizing coil (3) provides pulsed field magnetization electric current for magnetizing coil.
2. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, it is characterized in that: the magnetize interior pole-face (12) of yoke (1) and outer pole-face (13) of U-shaped makes arc-shaped respectively, in the face of the inner side and outer side of ring to be magnetized (2), U-shaped region shared by yoke (1) pole-face circular arc of magnetizing is π/p, and wherein p is the number of pole-pairs of ring to be magnetized.
3. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, is characterized in that: the U-shaped yoke (1) that magnetizes is overrided to form by electrical pure iron or the good electrical sheet of magnetic property.
4. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, is characterized in that: magnetizing coil (3) magnetizes in yoke (1) for hollow copper wire is wrapped in U-shaped.
5. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, is characterized in that: the angle that stepping rotating mechanism (5) rotates at every turn is the number of poles of 2 π/magnet ring.
6. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, is characterized in that: the power supply that magnetizes (4) is by capacitor array pulsed field magnetization electric power generating composition.
7. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, it is characterized in that: magnetizing coil (3) is wrapped in U-shaped and magnetizes on the right arm of yoke (1), the two ends of magnetizing coil (3) are connected on the power supply that magnetizes (4).
8. ring shape binding neodymium iron boron magnetic body multipole segmentation magnetizer according to claim 1, is characterized in that: the U-shaped yoke (1) that magnetizes is arranged on rotation platform (6), and ring to be magnetized (2) is along with rotation platform (6) synchronous rotary of its underpart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740142.1U CN204991340U (en) | 2015-09-23 | 2015-09-23 | Multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740142.1U CN204991340U (en) | 2015-09-23 | 2015-09-23 | Multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body |
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| Publication Number | Publication Date |
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| CN204991340U true CN204991340U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520740142.1U Expired - Fee Related CN204991340U (en) | 2015-09-23 | 2015-09-23 | Multipolar segmentation magnetizer of annular bonding neodymium iron boron magnetism body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097183A (en) * | 2015-09-23 | 2015-11-25 | 沈阳工业大学 | Annular bonding neodymium iron boron magnet multi-pole segmented magnetizing device |
| CN110189884A (en) * | 2019-06-04 | 2019-08-30 | 浙江英洛华磁业有限公司 | A kind of small pole span multipole magnetization method of plane |
-
2015
- 2015-09-23 CN CN201520740142.1U patent/CN204991340U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097183A (en) * | 2015-09-23 | 2015-11-25 | 沈阳工业大学 | Annular bonding neodymium iron boron magnet multi-pole segmented magnetizing device |
| CN110189884A (en) * | 2019-06-04 | 2019-08-30 | 浙江英洛华磁业有限公司 | A kind of small pole span multipole magnetization method of plane |
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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: 20160120 Termination date: 20170923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |