CN105162298A - Non-salient pole type outer rotor magnetic resistance type magnetic coupler - Google Patents
Non-salient pole type outer rotor magnetic resistance type magnetic coupler Download PDFInfo
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- CN105162298A CN105162298A CN201510714798.0A CN201510714798A CN105162298A CN 105162298 A CN105162298 A CN 105162298A CN 201510714798 A CN201510714798 A CN 201510714798A CN 105162298 A CN105162298 A CN 105162298A
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Abstract
The invention relates to a non-salient pole type outer rotor magnetic resistance type magnetic coupler. The outer circumferential face of a cylindrical inner rotor (2) is fixedly connected with inner rotor magnetic steel (4). The inner rotor magnetic steel (4) is in a cylindrical shape. An inner layer gap (7) is formed between the outer circumferential face of the inner rotor magnetic steel (4) and a shielding cover (1). An outer layer gap (8) is formed between the outer circumferential face of the shielding cover (1) and the inner circumferential face of an outer rotor (5). The outer rotor (5) is in a cylindrical shape. Multiple sets of open grooves (6) are formed in the cylindrical outer rotor (5). The inner rotor magnetic steel (4) at least comprises a pair of permanent magnets. All the tile-shaped permanent magnets are sequentially and tightly attached, radial magnetizing or parallel magnetizing is adopted for all the tile-shaped permanent magnets, and the magnetizing directions of every two adjacent permanent magnets are opposite. The non-salient pole type outer rotor magnetic resistance type magnetic coupler is used.
Description
Technical field
The present invention relates to a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling.
Background technology
Existing magnetic coupling can be divided into magneto by operation principle, squirrel-cage and reluctance type.The feature of magneto magnetic coupling is: inside and outside two rotors are all containing permanent magnet, force density is large, transmission efficiency is high, but due to the restriction of permanent magnet Curie temperature, this type of magnetic coupling can not be applied to high temperature occasion, and the organic adhesive that permanent magnet technique for sticking uses has pollution to the fluid media (medium) residing for work; A rotor in squirrel-cage magnetic coupling is the mouse cage that conductor is formed, not containing permanent magnet, can be used for high temperature occasion, but its operation principle is similar to induction machine, can electric current be induced when transmission in mouse cage and cause extra loss, transmission efficiency is reduced, and induced electricity fail to be convened for lack of a quorum and cause the electrochemical reaction of working media; A rotor in reluctance type magnetic coupling is only made up of permeability magnetic material, not containing permanent magnet, both may be used for high temperature occasion, the efficiency higher than mouse-cage type magnetic coupling can be obtained again, existing reluctance type magnetic coupling is salient-pole structure, when rotating in fluid media (medium), resistance is comparatively large, and overall transmission efficiency can be caused low.
Summary of the invention
The object of this invention is to provide a kind of structure adopting permanent magnet rotor to match with non-salient pole type reluctance rotor.Rotor with non-salient poles containing permanent magnet, can not work in high temperature fluid medium; The not conductor such as cupric, aluminium, without ohmic loss, transmission efficiency is high; Internal rotor and external rotor all adopt the silicon steel sheet stack that punching press is good molded, and without assembling adhering part, overall mechanical strength is large, can be used for a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling of high speed conditions.
above-mentioned object is realized by following technical scheme:
A kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling, its composition comprises: external rotor 5, housing 1, internal rotor 2, described internal rotor 2 is cylindrical, the inner peripheral surface of described cylindrical internal rotor 2 is fixedly installed on power transmission shaft 3, the outer circumference surface of described cylindrical internal rotor 2 is fixedly connected with internal rotor magnetic steel 4, described internal rotor magnetic steel 4 is tile shape, and arrange one week along internal rotor 2, interior lamellar spacing 7 is provided with between the outer circumference surface of described internal rotor magnetic steel 4 and housing 1, outer lamellar spacing 8 is provided with between the outer circumference surface of described housing 1 and the inner peripheral surface of external rotor 5, described external rotor 5 is cylindrical shape, described cylindrical shape external rotor 5 has vertically many group flutings 6, described internal rotor magnetic steel 4 comprises at least one pair of tile shape permanent magnet, all tile shape permanent magnets are closely affixed setting successively, all tile shape permanent magnets are radial magnetizing or parallel magnetization, and two often adjacent tile shape permanent magnet magnetizing directions are contrary.
Described a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling, described many groups fluting 6 is arranged relative to power transmission shaft 3 Central Symmetry, often organize fluting 6 and comprise multipair deep-slotted chip breaker, described multipair deep-slotted chip breaker is arranged relative to power transmission shaft 3 Central Symmetry, often organizes the convex arc surface rotor 5 outer circumference surface setting all toward the outside of the multipair deep-slotted chip breaker of fluting 6.
Described a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling, often organize deep-slotted chip breaker and connect adjacent NS pole, the group number of fluting is equal with outer rotor permanent magnet number of pole-pairs.
Described a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling, interior lamellar spacing 7 between the outer circumference surface of described internal rotor magnetic steel 4 and housing 1 is 0.7 ~ 3mm, and the outer lamellar spacing 8 between the outer circumference surface of described housing 1 and the inner peripheral surface of external rotor 5 is 0.7 ~ 3mm.
Described a kind of non-salient pole type internal rotor reluctance type magnetic coupling, described internal rotor 2 and external rotor 5 are formed by the silicon steel sheet stack that punching press is good is molded.
beneficial effect:
1. external rotor of the present invention adopts permeability magnetic material to form, and not containing permanent magnet, can work in high temperature fluid medium; The not conductor such as cupric, aluminium, without ohmic loss, transmission efficiency is up to 85-95%.
2. internal rotor of the present invention and external rotor all adopt the silicon steel sheet stack that punching press is good molded, and overall mechanical strength is large, can be used for the operating mode of high turn up 2000-20000rpm; Rotor with non-salient poles, without assembling adhering part, does not use the organic materials such as bonding agent and auxiliary material, and pollution-free to fluid media (medium) residing during work, rotor with non-salient poles does not produce induced current, can not cause the electrochemical reaction of fluid media (medium).
3. the present invention's rotary resistance in fluid media (medium) is little, the feature that transmission efficiency is high, compared to salient pole reluctance rotor, non-salient pole reluctance rotor in a fluid high-speed motion time can make fluid resistance torque reduce more than 80%.
accompanying drawing illustrates:
Accompanying drawing 1 is that this of the present inventionly prolongs axial section structural representation.
Accompanying drawing 2 is A-A cutaway views of accompanying drawing 1.
embodiment:
embodiment 1
A kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling, its composition comprises: external rotor 5, housing 1, internal rotor 2, described internal rotor 2 is cylindrical, the inner peripheral surface of described cylindrical internal rotor 2 is fixedly installed on power transmission shaft 3, the outer circumference surface of described cylindrical internal rotor 2 is fixedly connected with internal rotor magnetic steel 4, described internal rotor magnetic steel 4 is tile shape, and arrange one week along internal rotor 2, interior lamellar spacing 7 is provided with between the outer circumference surface of described internal rotor magnetic steel 4 and housing 1, outer lamellar spacing 8 is provided with between the outer circumference surface of described housing 1 and the inner peripheral surface of external rotor 5, described external rotor 5 is cylindrical shape, described cylindrical shape external rotor 5 has vertically many group flutings 6, described internal rotor magnetic steel 4 comprises at least one pair of tile shape permanent magnet, all tile shape permanent magnets are closely affixed setting successively, all tile shape permanent magnets are radial magnetizing or parallel magnetization, and two often adjacent tile shape permanent magnet magnetizing directions are contrary.
embodiment 2
A kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling described in embodiment 1, described many groups fluting 6 is arranged relative to power transmission shaft 3 Central Symmetry, often organize fluting 6 and comprise multipair deep-slotted chip breaker, described multipair deep-slotted chip breaker is arranged relative to power transmission shaft 3 Central Symmetry, often organizes the convex arc surface rotor 5 outer circumference surface setting all toward the outside of the multipair deep-slotted chip breaker of fluting 6.Fluting makes non-salient pole external rotor have asymmetry on magnetic circuit, can produce the saliency of similar salient-pole structure rotor in non-salient pole structure, thus produces reluctance torque, realizes magnetic couple.
embodiment 3
A kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling described in embodiment 2, often organize deep-slotted chip breaker and connect adjacent NS pole, the group number of fluting is equal with outer rotor permanent magnet number of pole-pairs.By arranging deep-slotted chip breaker, when inner and outer rotors relative position is changed, the magnetic resistance change rate difference of permanent magnet magnetic line of force closed magnetic circuit is maximum, thus produces maximum reluctance torque.
embodiment 4
A kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling described in embodiment 1, interior lamellar spacing 7 between the outer circumference surface of described internal rotor magnetic steel 4 and housing 1 is 0.7 ~ 3mm, and the outer lamellar spacing 8 between the outer circumference surface of described housing 1 and the inner peripheral surface of external rotor 5 is 0.7 ~ 3mm.First the setting in gap can ensure the isolation transmission by housing of inner and outer rotors under certain assembly precision; The more important thing is when can ensure that reluctance rotor works in high temperature fluid medium, p-m rotor can arrange flabellum and fluting carries out pressures Air flow to gap, avoids permanent magnet Yin Wendu too high and produces and demagnetize.
embodiment 5
A kind of non-salient pole type internal rotor reluctance type magnetic coupling described in embodiment 1, described internal rotor 2 and external rotor 5 are formed by the silicon steel sheet stack that punching press is good is molded.
operation principle is: when external rotor is static, permanent magnet in internal rotor magnetic steel sets up magnetic field, the magnetic line of force forms closed-loop path by permeability magnetic material part between the groove of slotting in the permanent magnet on external rotor magnet steel, internal rotor, external rotor, and this closed path is the part that in magnetic circuit, magnetic resistance is minimum; When external rotor rotates, between internal rotor and external rotor, relative position changes, and the magnetic resistance of magnetic circuit can become large; Because the magnetic line of force always closes, so can produce reluctance torque between internal rotor and external rotor, to hinder the relative motion between internal rotor and external rotor along the path that magnetic resistance is minimum; Reluctance torque finally can make inner and outer rotors keep being synchronized with the movement, thus completes non-contact type magnetic transmission.
External rotor is slotted vertically; Fluting segmentation is carried out, the connection width that certain gap ensures external rotor material is left between every section of fluting, the selection connecting width should carry out calculation and check according to the strength of materials, can not produce obvious deformation and fracture to meet the combined stress that when magnetic coupling works, carry-over moment and centrifugal force when rotating produce.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (5)
1. a non-salient pole type circuit outer rotor reluctance type magnetic coupling, its composition comprises: external rotor (5), housing (1), internal rotor (2), it is characterized in that: described internal rotor (2) is for cylindrical, the inner peripheral surface of described cylindrical internal rotor (2) is fixedly installed on power transmission shaft (3), the outer circumference surface of described cylindrical internal rotor (2) is fixedly connected with internal rotor magnetic steel (4), described internal rotor magnetic steel (4) is tile shape, and along internal rotor (2) arrangement one week, interior lamellar spacing (7) is provided with between the outer circumference surface of described internal rotor magnetic steel (4) and housing (1), outer lamellar spacing (8) is provided with between the outer circumference surface of described housing (1) and the inner peripheral surface of external rotor (5), described external rotor (5) is cylindrical shape, described cylindrical shape external rotor (5) has vertically and organizes fluting (6) more, described internal rotor magnetic steel (4) comprises at least one pair of tile shape permanent magnet, all tile shape permanent magnets are closely affixed setting successively, all tile shape permanent magnets are radial magnetizing or parallel magnetization, and two often adjacent tile shape permanent magnet magnetizing directions are contrary.
2. a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling according to claim 1, it is characterized in that: many groups of described flutings (6) are arranged relative to power transmission shaft (3) Central Symmetry, often organize fluting (6) and comprise multipair deep-slotted chip breaker, described multipair deep-slotted chip breaker is arranged relative to power transmission shaft (3) Central Symmetry, often organizes convex arc surface rotor (5) the outer circumference surface setting all toward the outside of the multipair deep-slotted chip breaker of fluting (6).
3. a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling according to claim 2, is characterized in that: often organize deep-slotted chip breaker and connect adjacent NS pole, the group number of fluting is equal with outer rotor permanent magnet number of pole-pairs.
4. a kind of non-salient pole type circuit outer rotor reluctance type magnetic coupling according to claim 1, it is characterized in that: the interior lamellar spacing (7) between the outer circumference surface of described internal rotor magnetic steel (4) and housing (1) is 0.7 ~ 3mm, the outer lamellar spacing (8) between the outer circumference surface of described housing (1) and the inner peripheral surface of external rotor (5) is 0.7 ~ 3mm.
5. a kind of non-salient pole type internal rotor reluctance type magnetic coupling according to claim 1, is characterized in that: described internal rotor (2) and external rotor (5) are formed by the silicon steel sheet stack that punching press is good is molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714798.0A CN105162298A (en) | 2015-10-29 | 2015-10-29 | Non-salient pole type outer rotor magnetic resistance type magnetic coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714798.0A CN105162298A (en) | 2015-10-29 | 2015-10-29 | Non-salient pole type outer rotor magnetic resistance type magnetic coupler |
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| CN105162298A true CN105162298A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510714798.0A Pending CN105162298A (en) | 2015-10-29 | 2015-10-29 | Non-salient pole type outer rotor magnetic resistance type magnetic coupler |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290546A (en) * | 1997-02-13 | 1998-10-27 | Daido Steel Co Ltd | Structure for preventing cogging of rotary electric machine |
| CN201027950Y (en) * | 2007-04-09 | 2008-02-27 | 刘新广 | Magnetic resistance transmission device |
| CN102611220A (en) * | 2012-03-14 | 2012-07-25 | 哈尔滨工业大学 | Magnetic positioner for unilateral permanent magnet |
| CN103683771A (en) * | 2013-12-05 | 2014-03-26 | 东南大学 | Like pole type inductor motor hiding salient pole |
-
2015
- 2015-10-29 CN CN201510714798.0A patent/CN105162298A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290546A (en) * | 1997-02-13 | 1998-10-27 | Daido Steel Co Ltd | Structure for preventing cogging of rotary electric machine |
| CN201027950Y (en) * | 2007-04-09 | 2008-02-27 | 刘新广 | Magnetic resistance transmission device |
| CN102611220A (en) * | 2012-03-14 | 2012-07-25 | 哈尔滨工业大学 | Magnetic positioner for unilateral permanent magnet |
| CN103683771A (en) * | 2013-12-05 | 2014-03-26 | 东南大学 | Like pole type inductor motor hiding salient pole |
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Application publication date: 20151216 |