CN203457031U - Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device - Google Patents
Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device Download PDFInfo
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- CN203457031U CN203457031U CN201320564186.4U CN201320564186U CN203457031U CN 203457031 U CN203457031 U CN 203457031U CN 201320564186 U CN201320564186 U CN 201320564186U CN 203457031 U CN203457031 U CN 203457031U
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Abstract
The utility model provides a flat plate type magnet-gathering type magnetic circuit structure for a permanent magnetic eddy current transmission device, and belongs to the technical field of permanent magnetic transmission. Compared with the flat plate type permanent magnetic eddy current transmission device employing a discrete magnetic circuit structure, the flat plate type magnet-gathering type magnetic circuit structure for the permanent magnetic eddy current transmission device is advantageous in that the generated torque or transmitted power by unit quality permanent magnetic materials is larger or higher. The flat plate type magnet-gathering type magnetic circuit structure comprises a permanent magnet rotor and an eddy current conductor rotor which are coaxially arranged, each permanent magnet set comprises two to five magnets tightly contacted, the numbers of the magnets included in each permanent magnet set in the same magnetic coupling ring are the same, the magnets are radially distributed along a flat plate surface of a permanent magnet rotor disc, the magnetization polarity directions of the magnets in the same permanent magnet set are the same, the magnetization polarity directions of the adjacent permanent magnet sets are opposite, the radial width of an eddy current ring is larger than the maximum radial width of a corresponding magnetic coupling ring, the internal diameter of the eddy current ring is smaller than the minimum internal diameter of the corresponding magnetic coupling ring, and the external diameter of the eddy current ring is larger than the maximum external diameter of the corresponding magnetic coupling ring.
Description
Technical field
The utility model belongs to permanent magnet transmission technical field, particularly a kind of square position type magnetism-gathering magnetic line structure that can be used for permanent magnetic vortex drive device.
Background technology
Permanent-magnet eddy current drive technology originates from improvement and the development of permanent-magnet synchronous drive technology.When permanent-magnet synchronous in early days sealing drive technology is applied among the equipment such as magnetic drive pump and magnetic drives blender, often run into Yin Gaowen, corrosion or overload and the frequent rough sledding such as de-coupling, therefore may cause the problems such as permanent magnet on the driven rotor in device interior destroys, demagnetization.For solving this class problem, ring of eddy technology is arisen at the historic moment, and its basic structure is exactly that the permanent magnet on driven rotor is removed, and replaces by the ring of eddy of making without nonmagnetic electrically conductive material (being generally copper).The basic functional principle of permanent-magnet eddy current drive technology is: when the magnet rotor with permanent magnet is when doing relative motion with the conductor rotor of conductor disc (ring of eddy) because of speed discrepancy, generation eddy current is responded in the magnetic field that magnet rotor produces in conductor disc, and then eddy current produces again Induced magnetic field in conductor disc, Induced magnetic field in this conductor disc and the stationary magnetic field of permanent magnet interact, just between magnet rotor and conductor rotor, produce coupling torque, thereby reach the object of transmitting motion-promotion force.The version of permanent magnetic vortex drive device mainly contains two kinds of socket type peace dish-types at present, its application form mainly comprise there is flexible startup, the permanent magnet eddy current coupling of blocking rotation, limit torque and damping vibration-isolating characteristic and by regulating air gap distance (square position type) or coupling area (socket type) to realize the permanent-magnet eddy current speed regulator that regulates driving torque function.Wherein square position type permanent-magnet eddy current speed regulator and shaft coupling, have that axial profile size is little, axial adjustment distance is short, conductor disc good cooling results, be suitable for the high-power transmission of large torque, can realize and limit torque and stall to take off the features such as coupling, especially favored.
Magnetic structure design is the key problem in technology of permanent magnetic vortex drive device, the quality of magnetic circuit performance can be directly connected to permanent magnetic vortex drive device use material number, the size of overall volume is, the quality of the height of manufacturing cost and service behaviour.So far, the magnetic structure design of square position type permanent magnetic vortex drive device (comprising speed regulator and shaft coupling) mostly adopts discrete magnetic structure, on the surface of permanent magnet rotor square position, along even circumferential, even numbered blocks permanent magnet is set, each piece magnet magnetizes vertically, adjacent two magnet magnetic direction are contrary, and distance relatively far apart.In recent years, along with reduction the popularization and application of high performance permanent magnetic materials cost, and the development of the modern technology that magnetizes, magnetic structure Optimization Theory is also developed rapidly, is improved and applied, and novel magnetic structure emerges in multitude.Modern magnetic structure design theory and method is applied to permanent-magnet eddy current drive technology, and exploitation is applicable to the novel magnetic circuit of permanent magnetic vortex drive device, improves the service behaviour of permanent magnetic vortex drive device, imperative.
Utility model content
The problem existing for prior art, the utility model provides a kind of square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device, adopt this magnetic structure to compare with adopting the square position type permanent magnetic vortex drive device of discrete magnetic structure, the moment of torsion that unit mass (volume) permanent magnetic material can produce or transmission more powerful, still less, overall structure size is less for permanent magnetic material used, and weight is lighter, manufacturing cost is lower, and in work, the eddy current loss of autophage still less.
To achieve these goals, the utility model adopts following technical scheme, and a kind of square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device comprises permanent magnet rotor and the eddy current conductor rotor of coaxial setting; Described permanent magnet rotor is comprised of permanent magnet rotor dish and even number set permanent magnet group, and permanent magnet group is arranged on surface, permanent magnet rotor dish square position, and is uniformly distributed in a circumferential direction, forms magnetic coupling ring; Described eddy current conductor rotor is comprised of conductor rotor dish and ring of eddy, and ring of eddy is that annular is dull and stereotyped, and ring of eddy is arranged on surface, conductor rotor dish square position, and ring of eddy is corresponding with the magnetic coupling ring on permanent magnet rotor dish; Be characterized in, described permanent magnet group is comprised of the magnet of two to five close contacts, and the magnet quantity that each group permanent-magnet group in same magnetic coupling ring comprises is identical, and every block of magnet all distributes along permanent magnet rotor dish square position radial surface; When described permanent magnet group is comprised of two blocks of magnet, the acute angle that the magnetizing direction of two blocks of magnet and permanent magnet rotor dish square position surface normal form all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of three blocks of magnet, the magnetizing direction of middle magnet is identical with permanent magnet rotor dish square position surface normal direction, the acute angle that the magnetizing direction of both sides magnet and permanent magnet rotor dish square position surface normal form all≤30 °, and angle is identical, the intersection point of the magnetizing direction of both sides magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of four blocks of magnet, the magnetizing direction of middle two blocks of magnet and the acute angle that permanent magnet rotor dish square position surface normal forms be equal≤and 15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side, acute angle that magnetizing direction and the permanent magnet rotor dish square position surface normal of the two blocks of magnet in outside form is equal≤and 40 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of five blocks of magnet, the magnetizing direction of middle magnet is identical with permanent magnet rotor dish square position surface normal direction, the acute angle that the magnetizing direction of its adjacent both sides magnet and permanent magnet rotor dish square position surface normal form all≤20 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side, the acute angle that the magnetizing direction of outermost two blocks of magnet and permanent magnet rotor dish square position surface normal form all≤45 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; Magnet in the same group permanent-magnet group polar orientation that magnetizes is identical, the opposite polarity directions that magnetizes of adjacent permanent group; The radial width of ring of eddy is greater than the maximum radial width of corresponding magnetic coupling ring, and the internal diameter of ring of eddy is less than the minimum diameter of corresponding magnetic coupling ring, and the external diameter of ring of eddy is greater than the maximum outside diameter of corresponding magnetic coupling ring.
Described magnet is identical along permanent magnet rotor dish square position radial surface width, and the magnetic coupling ring internal diameter forming is identical, external diameter is identical, and magnet is identical and end face alignment along permanent magnet rotor dish square position surface normal direction thickness.
The cross section of described magnet is tile fragment shape, trapezoidal or rectangle.
Close contact or leave gap between described adjacent permanent group, fills non-magnetic isolating pad if leave in ，Ze gap, gap, and non-magnetic isolating pad adopts non-magnet material.
The beneficial effects of the utility model:
Adopt magnetic structure of the present utility model to compare with adopting the square position type permanent magnetic vortex drive device of discrete magnetic structure, in the situation that producing same moment of torsion or transmitting same power, permanent magnetic material used still less, overall structure size is less, weight is lighter, manufacturing cost is lower, the moment of torsion that unit mass (volume) permanent magnetic material can produce or transmission more powerful, in work, the eddy current loss of autophage still less.This has also fully reflected the direct benefit that outstanding magnetic structure design can bring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the square position type magnetism-gathering magnetic line structure embodiment mono-for permanent magnetic vortex drive device of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the C-C cutaway view of Fig. 2;
Fig. 4 is the D-D cutaway view of Fig. 2;
Fig. 5 is the structural representation of the square position type magnetism-gathering magnetic line structure embodiment bis-for permanent magnetic vortex drive device of the present utility model;
Fig. 6 is the B-B cutaway view of Fig. 5;
Fig. 7 is the E-E cutaway view of Fig. 6;
Fig. 8 is that permanent magnet group of the present utility model is by the schematic diagram of the magnetism-gathering magnetic line structure of four magnet compositions;
Fig. 9 is the F-F cutaway view of Fig. 8;
In figure, 1--prime mover driven axle, 2--permanent magnet rotor dish, ring permanent magnet group in 3--, 4--outer shroud permanent magnet group, 5--outer shroud ring of eddy, ring ring of eddy in 6--, 7--conductor rotor dish, 8--load rotating shaft, permanent magnet in the middle of ring in 9--, 30 ° of angle permanent magnets of ring in 10--, the non-magnetic isolating pad of 11--, permanent magnet in the middle of 12--outer shroud, 15 ° of angle permanent magnets of 13--outer shroud, 14--outer shroud 45° angle permanent magnet, 15--connecting shaft conductor rotor dish, 16--ring of eddy, 17--attachment screw, 18--rotor disk connecting plate, 19--hollow conductor rotor disk, 20-hollow permanent magnet rotor dish, 21--15 ° of angle permanent magnet, 22-eddy current conductor rotor, 23-permanent magnet rotor, 24--permanent magnet group.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment mono-:
The square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device of the present embodiment adopts two magnetic coupling ring structures.
As shown in Figures 1 to 4, a kind of square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device, comprise as the permanent magnet rotor 23 of power rotor with as the eddy current conductor rotor 22 of driven rotor, permanent magnet rotor 23 is by encircling permanent magnet group 3 in 2,12 groups, permanent magnet rotor dish and 16 groups of outer shroud permanent magnet groups 4 form, inner and outer rings permanent magnet group is bonded and fixed on permanent magnet rotor dish 2 surfaces, square position by magnetic-conductive adhesive, and be uniformly distributed in a circumferential direction, form inside and outside magnetic coupling ring; Permanent magnet rotor dish 2 is disc-shape, by Armco iron, is made.Eddy current conductor rotor 22 is comprised of conductor rotor dish 7, interior ring ring of eddy 6 and outer shroud ring of eddy 5, and inner and outer rings ring of eddy is fixedly installed on conductor rotor dish 7 surfaces, square position; Conductor rotor dish 7 is made by permeability magnetic material Q235A; Described interior ring ring of eddy 6 and outer shroud ring of eddy 5 are annular flat board, are all made of copper.
As shown in Figures 2 and 3, the bar magnet that described interior ring permanent magnet group 3 is long tile fragment shape by three cross sections forms, and comprises the middle permanent magnet 9 of ring and the 30 ° of angle permanent magnets 10 of interior ring that are arranged on its both sides in one; In the middle of interior ring, the magnetizing direction of permanent magnet 9 is identical with permanent magnet rotor dish 2 square position surface normal directions, in two, encircle the acute angle that the magnetizing direction of 30 ° of angle permanent magnets 10 and permanent magnet rotor dish 2 square position surface normals form and be 30 °, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; The polar orientation that magnetizes of three blocks of magnet in same group in ring permanent magnet group 3 is identical, the opposite polarity directions that magnetizes of adjacent interior ring permanent magnet group 3; Every block of magnet in interior ring permanent magnet group 3 all distributes along permanent magnet rotor dish 2 square position radial surfaces, described magnet is identical along permanent magnet rotor dish 2 square position radial surface width, and the interior magnetic coupling ring internal diameter forming is identical, external diameter is identical, magnet is identical and end face alignment along permanent magnet rotor dish 2 square position surface normal direction thickness; In same group, encircle in permanent magnet group 3 close contact between adjacent magnets, between adjacent interior ring permanent magnet group 3, be provided with non-magnetic isolating pad 11.
As shown in Figure 2 and Figure 4, described outer shroud permanent magnet group 4 is that trapezoidal bar magnet forms by five cross sections, comprises the middle permanent magnet 12 of an outer shroud, is arranged on outer shroud middle permanent magnet 12 both sides the 15 ° of angle permanent magnets 13 of two outer shrouds that are in direct contact with it and is arranged on outermost two blocks of outer shroud 45° angle permanent magnets 14; In the middle of outer shroud in every group of outer shroud permanent magnet group 4, the magnetizing direction of permanent magnet 12 is all identical with permanent magnet rotor dish 2 square position surface normal directions, the acute angle that the magnetizing direction of 15 ° of angle permanent magnets 13 of two outer shrouds and permanent magnet rotor dish 2 square position surface normals form is 15 °, and the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; The acute angle that the magnetizing direction of two blocks of outer shroud 45° angle permanent magnets 14 and permanent magnet rotor dish 2 square position surface normals form is 45 °, and the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; The polar orientation that magnetizes of five blocks of magnet in same group of outer shroud permanent magnet group 4 is identical, the opposite polarity directions that magnetizes of adjacent outer shroud permanent magnet group 4; Every block of magnet in outer shroud permanent magnet group 4 is all along permanent magnet rotor dish 2 square position radial distribution, described magnet is identical along permanent magnet rotor dish 2 square position radial surface width, and the outer magnetic coupling ring internal diameter forming is identical, external diameter is identical, magnet is identical and end face alignment along permanent magnet rotor dish 2 square position surface normal direction thickness; Close contact between adjacent magnets in same group of outer shroud permanent magnet group 4, close contact between adjacent outer shroud permanent magnet group 4.
The internal diameter of interior ring ring of eddy 6 is less than the internal diameter of the interior magnetic coupling ring on permanent magnet rotor dish 2, and the external diameter of interior ring ring of eddy 6 is greater than the external diameter of the interior magnetic coupling ring on permanent magnet rotor dish 2; The internal diameter of outer shroud ring of eddy 5 is less than the internal diameter of the outer magnetic coupling ring on permanent magnet rotor dish 2, and the external diameter of outer shroud ring of eddy 5 is greater than the external diameter of the outer magnetic coupling ring on permanent magnet rotor dish 2.
Below in conjunction with accompanying drawing, a use procedure of the present utility model is described:
During work, permanent magnet rotor 23 coaxially arranges with eddy current conductor rotor 22, inner and outer rings permanent magnet group in permanent magnet rotor 23 respectively with eddy current conductor rotor 23 on inner and outer rings ring of eddy be face-to-face setting, between permanent magnet rotor 23 and eddy current conductor rotor 22, leave in the axial direction air gap as movement clearance or for regulating magnetic field intensity.On permanent magnet rotor dish 2, conductor rotor dish 7, be provided with axle sleeve, permanent magnet rotor dish 2 is connected with prime mover (as motor) driving shaft 1 by axle sleeve, and conductor rotor dish 7 is connected with load (as blower fan, water pump) rotating shaft 8 by axle sleeve.
In the course of work, first prime mover driven axle 1 drives power rotor (permanent magnet rotor 23) to rotate, and now not yet motion of driven rotor (eddy current conductor rotor 22) and load rotating shaft 8 thereof; The opposite polarity directions that magnetizes due to two adjacent groups permanent magnet group in permanent magnet rotor 23, therefore when permanent magnet rotor 23 and eddy current conductor rotor 22 motion for the relative rotation, the inner and outer rings permanent magnet group in permanent magnet rotor 23 can form alternating magnetic field in the inner and outer rings ring of eddy in eddy current conductor rotor 22; Because inner and outer rings ring of eddy is to be become by conductor material copper, the alternating magnetic field that inner and outer rings permanent magnet group produces can generate the eddy current of alternation within it, and then this eddy current produces Induced magnetic field again in inner and outer rings ring of eddy; In Induced magnetic field and permanent magnet rotor 23, the stationary magnetic field of inner and outer rings permanent magnet group interacts, and just between two rotors, produces coupling torque, thereby drives driven rotor and load rotating shaft 8 thereof to do rotatablely move identical with power rotor direction; After this, in load rotating shaft 8 output torques one regularly, between power rotor and driven rotor, keep certain speed discrepancy, power rotor is faster than driven rotor rotating speed all the time, the two remains motion for the relative rotation, thereby maintaining all the time above-mentioned coupling process, between two rotors, reaching the object of transmitting motion-promotion force.
Embodiment bis-:
Every group of magnetic structure of the square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device of the present embodiment all adopts single magnetic coupling ring structure.
As shown in Figures 5 to 7, a kind of square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device, comprise as the permanent magnet rotor 23 of driven rotor with as the eddy current conductor rotor 22 of power rotor, permanent magnet rotor 23 is comprised of the hollow permanent magnet rotor dish 20 and the permanent magnet group 24 that are arranged between connecting shaft conductor rotor dish 15 and hollow conductor rotor disk 19, permanent magnet group 24 is bonded and fixed on hollow permanent magnet rotor dish 20 surfaces, square position by magnetic-conductive adhesive respectively, and be uniformly distributed in a circumferential direction, form magnetic coupling ring, hollow permanent magnet rotor dish 20 is coaxial, parallel and symmetrically arranged two hollow circular disk body, by Armco iron, made, in each hollow circular disk body, be provided with 18 group permanent-magnet groups 24, and position is symmetrical, described eddy current conductor rotor 22 is comprised of connecting shaft conductor rotor dish 15, ring of eddy 16, attachment screw 17, rotor disk connecting plate 18 and hollow conductor rotor disk 19, connecting shaft conductor rotor dish 15 is connected with rotor disk connecting plate 18 by attachment screw 17 respectively with hollow conductor rotor disk 19, and ring of eddy 16 is separately positioned on connecting shaft conductor rotor dish 15 and hollow conductor rotor disk 19 surfaces, square position, connecting shaft conductor rotor dish 15 is connecting shaft disc-shaped structure, and hollow conductor rotor disk 19 is open circles disk-shaped structure, and the two is made by permeability magnetic material Q235A, described ring of eddy 16 is that annular is dull and stereotyped, is made of copper.
The bar magnet that described permanent magnet group 24 is rectangle by two cross sections forms, by 15 ° of angle permanent magnets 21, formed, the acute angle that the magnetizing direction of two blocks of 15 ° of angle permanent magnets 21 and hollow permanent magnet rotor dish 20 square position surface normals form is 15 °, the intersection point of the magnetizing direction of two blocks of magnet is arranged on corresponding ring of eddy 16 1 sides, the polar orientation that magnetizes of two blocks of magnet in same group permanent-magnet group 24 is identical, the opposite polarity directions that magnetizes of adjacent permanent group 24.Every block of magnet in permanent magnet group 24 all distributes along hollow permanent magnet rotor dish 20 square position radial surfaces, described magnet is identical along hollow permanent magnet rotor dish 20 square position radial surface width, and the magnetic coupling ring internal diameter forming is identical, external diameter is identical, magnet is identical and end face alignment along hollow permanent magnet rotor dish 20 square position surface normal direction thickness; Close contact between adjacent 15 ° of angle permanent magnets 21 in same group permanent-magnet group, is 20 ° of angles between adjacent permanent group.
The internal diameter that is arranged on connecting shaft conductor rotor dish 15 and the hollow conductor rotor disk 19 lip-deep ring of eddies 16 in square position is less than respectively the internal diameter of the magnetic coupling ring on hollow permanent magnet rotor dish 20, and external diameter is greater than the external diameter of the magnetic coupling ring on hollow permanent magnet rotor dish 20.
The schematic diagram of the magnetism-gathering magnetic line structure that permanent magnet group 24 forms by four blocks of magnet as shown in Figure 8, Figure 9.
Below in conjunction with accompanying drawing, a use procedure of the present utility model is described:
During work, permanent magnet rotor 23 coaxially arranges with eddy current conductor rotor 22, permanent magnet rotor 23 mediates, the both sides that the connecting shaft conductor rotor dish 15 of eddy current conductor rotor 22 and hollow conductor rotor disk 19 are separately positioned on hollow permanent magnet rotor dish 20, ring of eddy 16 respectively with hollow permanent magnet rotor dish 20 on permanent magnet group 24 be face-to-face setting, between connecting shaft conductor rotor dish 15, hollow conductor rotor disk 19 and hollow permanent magnet rotor dish 20, leave respectively in the axial direction air gap as movement clearance, and two air-gap separations equate.On hollow permanent magnet rotor dish 20, be provided with axle sleeve, hollow permanent magnet rotor dish 20 is connected with load (as blower fan, water pump) rotating shaft 8 by axle sleeve, on connecting shaft conductor rotor dish 15, be provided with axle sleeve, connecting shaft conductor rotor dish 15 is connected with prime mover (as motor) driving shaft 1 by axle sleeve.
In the course of work, first prime mover driven axle 1 drives power rotor (eddy current conductor rotor 22) to rotate, and now not yet motion of driven rotor (permanent magnet rotor 23) and load rotating shaft 8 thereof; Because the polar orientation that magnetizes of two adjacent groups permanent magnet group 24 in permanent magnet rotor 23 is contrary, so when permanent magnet rotor 23 and eddy current conductor rotor 22 motion for the relative rotation, the ring of eddy 16 interior formation alternating magnetic field of permanent magnet group 24 meetings in eddy current conductor rotor 22 in permanent magnet rotor 23; Because ring of eddy 16 is to be become by conductor material copper, the alternating magnetic field that permanent magnet group 24 produces can generate the eddy current of alternation within it, and then this eddy current produces Induced magnetic field again in ring of eddy 16; In Induced magnetic field and permanent magnet rotor 23, the stationary magnetic field of permanent magnet group 24 interacts, just between connecting shaft conductor rotor dish 15 and hollow permanent magnet rotor dish 20, hollow conductor rotor disk 19 and hollow permanent magnet rotor dish 20, produce coupling torque respectively, thereby drive driven rotor and load rotating shaft 8 thereof to do rotatablely move identical with power rotor direction; After this, in load rotating shaft 8 output torques one regularly, between power rotor and driven rotor, keep certain speed discrepancy, power rotor is faster than driven rotor rotating speed all the time, the two remains motion for the relative rotation, thereby maintaining all the time above-mentioned coupling process, between two rotors, reaching the object of transmitting motion-promotion force.
Claims (4)
1. for a square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device, comprise permanent magnet rotor and the eddy current conductor rotor of coaxial setting; Described permanent magnet rotor is comprised of permanent magnet rotor dish and even number set permanent magnet group, and permanent magnet group is arranged on surface, permanent magnet rotor dish square position, and is uniformly distributed in a circumferential direction, forms magnetic coupling ring; Described eddy current conductor rotor is comprised of conductor rotor dish and ring of eddy, and ring of eddy is that annular is dull and stereotyped, and ring of eddy is arranged on surface, conductor rotor dish square position, and ring of eddy is corresponding with the magnetic coupling ring on permanent magnet rotor dish; It is characterized in that, described permanent magnet group is comprised of the magnet of two to five close contacts, and the magnet quantity that each group permanent-magnet group in same magnetic coupling ring comprises is identical, and every block of magnet all distributes along permanent magnet rotor dish square position radial surface; When described permanent magnet group is comprised of two blocks of magnet, the acute angle that the magnetizing direction of two blocks of magnet and permanent magnet rotor dish square position surface normal form all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of three blocks of magnet, the magnetizing direction of middle magnet is identical with permanent magnet rotor dish square position surface normal direction, the acute angle that the magnetizing direction of both sides magnet and permanent magnet rotor dish square position surface normal form all≤30 °, and angle is identical, the intersection point of the magnetizing direction of both sides magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of four blocks of magnet, the magnetizing direction of middle two blocks of magnet and the acute angle that permanent magnet rotor dish square position surface normal forms be equal≤and 15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side, acute angle that magnetizing direction and the permanent magnet rotor dish square position surface normal of the two blocks of magnet in outside form is equal≤and 40 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; When described permanent magnet group is comprised of five blocks of magnet, the magnetizing direction of middle magnet is identical with permanent magnet rotor dish square position surface normal direction, the acute angle that the magnetizing direction of its adjacent both sides magnet and permanent magnet rotor dish square position surface normal form all≤20 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side, the acute angle that the magnetizing direction of outermost two blocks of magnet and permanent magnet rotor dish square position surface normal form all≤45 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on ring of eddy one side; Magnet in the same group permanent-magnet group polar orientation that magnetizes is identical, the opposite polarity directions that magnetizes of adjacent permanent group; The radial width of ring of eddy is greater than the maximum radial width of corresponding magnetic coupling ring, and the internal diameter of ring of eddy is less than the minimum diameter of corresponding magnetic coupling ring, and the external diameter of ring of eddy is greater than the maximum outside diameter of corresponding magnetic coupling ring.
2. the square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device according to claim 1, it is characterized in that described magnet is identical along permanent magnet rotor dish square position radial surface width, and the magnetic coupling ring internal diameter forming is identical, external diameter is identical, magnet is identical and end face alignment along permanent magnet rotor dish square position surface normal direction thickness.
3. the square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device according to claim 1, the cross section that it is characterized in that described magnet is tile fragment shape, trapezoidal or rectangle.
4. the square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device according to claim 1, it is characterized in that between described adjacent permanent group close contact or leave gap, if leave gap, in gap, fill non-magnetic isolating pad, non-magnetic isolating pad adopts non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564186.4U CN203457031U (en) | 2013-09-11 | 2013-09-11 | Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564186.4U CN203457031U (en) | 2013-09-11 | 2013-09-11 | Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device |
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| CN203457031U true CN203457031U (en) | 2014-02-26 |
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|---|---|---|---|
| CN201320564186.4U Withdrawn - After Issue CN203457031U (en) | 2013-09-11 | 2013-09-11 | Flat plate type magnet-gathering type magnetic circuit structure for permanent magnetic eddy current transmission device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607097A (en) * | 2013-09-11 | 2014-02-26 | 辽阳泰科雷诺科技有限公司 | Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device |
| CN107947526A (en) * | 2017-12-28 | 2018-04-20 | 南京工程学院 | High-efficient axial magnetic flow permanent magnet eddy-current coupling with slit slot structure |
| CN110649784A (en) * | 2019-09-30 | 2020-01-03 | 合肥工业大学 | Disc type permanent magnet eddy current coupling |
-
2013
- 2013-09-11 CN CN201320564186.4U patent/CN203457031U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607097A (en) * | 2013-09-11 | 2014-02-26 | 辽阳泰科雷诺科技有限公司 | Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device |
| CN103607097B (en) * | 2013-09-11 | 2015-12-02 | 辽阳泰科雷诺科技有限公司 | A kind of square position type magnetism-gathering magnetic line structure for permanent magnetic vortex drive device |
| CN107947526A (en) * | 2017-12-28 | 2018-04-20 | 南京工程学院 | High-efficient axial magnetic flow permanent magnet eddy-current coupling with slit slot structure |
| CN110649784A (en) * | 2019-09-30 | 2020-01-03 | 合肥工业大学 | Disc type permanent magnet eddy current coupling |
| CN110649784B (en) * | 2019-09-30 | 2020-08-07 | 合肥工业大学 | Disc type permanent magnet eddy current coupling |
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