WO2011049298A2 - Moteur linéaire - Google Patents

Moteur linéaire Download PDF

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Publication number
WO2011049298A2
WO2011049298A2 PCT/KR2010/006342 KR2010006342W WO2011049298A2 WO 2011049298 A2 WO2011049298 A2 WO 2011049298A2 KR 2010006342 W KR2010006342 W KR 2010006342W WO 2011049298 A2 WO2011049298 A2 WO 2011049298A2
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WO
WIPO (PCT)
Prior art keywords
permanent magnet
module
armature
modules
pole
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PCT/KR2010/006342
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English (en)
Korean (ko)
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WO2011049298A3 (fr
Inventor
김홍중
Original Assignee
주식회사 성진로얄모션
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Publication of WO2011049298A2 publication Critical patent/WO2011049298A2/fr
Publication of WO2011049298A3 publication Critical patent/WO2011049298A3/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type

Definitions

  • the present invention relates to a linear motor that generates a linear motion.
  • a linear motor that is, a linear motor
  • a linear motor has a structure in which thrust is generated between a mover and a stator facing in a straight line shape.
  • Permanent magnet type linear motors have a fixed magnet on either the mover or the stator and send alternating polyphase power to the other side so that electromagnetic forces act between them to generate thrust in a certain direction.
  • the applicant of the present invention proposed a linear motor of a new structure through the application number 10-2009-0090806 on September 25, 2009, which offsets the strong magnetic attraction force between the pole of the armature core and the permanent magnet.
  • a cylindrical linear electric motor was proposed as the structure.
  • the secondary member which is a stator
  • the primary member which is a movable member
  • the stage 51 performs a linear motion in accordance with the guide of the guide rail 52 and the slide 53.
  • deflection may occur due to the load of the permanent magnet itself. do.
  • the cross-section of the secondary member is enlarged to have a structure that increases the cross-sectional secondary moment (the material exhibits the resistance to deformation when bending force is applied). Therefore, there is a limit in system configuration that satisfies a given condition.
  • the linear motor for long distance conveyance is mainly used for a planar linear motor that deploys a rotary motor and spreads it on a straight line. do.
  • the present invention was created to solve the above problems, and an object of the present invention is to alleviate the problem of magnetic attraction force of the flat plate linear motor, and to solve the deflection caused by the load of the permanent magnet itself as a secondary member.
  • the present invention provides a linear motor capable of long-distance transfer.
  • Linear motor for achieving the above object, comprises a primary member including a plurality of armature module, a secondary member including a plurality of permanent magnet module and a support mechanism
  • Each armature module has two or more salient poles projecting from the arc-shaped magnetic body toward the secondary member, and coils in which currents of the same phase flow through each salient pole are wound, and each permanent magnet module includes salient poles included in each armature module.
  • the permanent magnets having the same number of poles are arranged, and have a predetermined phase difference such that thrust due to the traveling magnetic field is generated by using S armature modules arranged in the direction of travel and P permanent magnet modules that are multiples of 2 as one unit. Power is applied to each armature module and either one of the primary member or the secondary member is moved by the generated thrust with the mover. The other is that the stator is fixed to the support mechanism.
  • the coil may be wound such that neighboring poles in each armature module have different polarities.
  • each permanent magnet in each permanent magnet module may be arranged to be a different pole from the neighboring permanent magnets.
  • each permanent magnet in each permanent magnet module may be fixed to the magnetic surface or embedded within the magnetic body.
  • neighboring permanent magnet modules may be spaced at regular intervals or nonmagnetic materials may be installed therebetween.
  • the magnetic body of the armature module is advantageously at least linearly symmetrical structure
  • the magnetic body of the armature module is an arc shape, a polygonal arc shape consisting of a portion of a polygonal ring, a combination shape of different polygonal arcs, or at least one arc and at least one It can be any combination of polygonal arc shapes.
  • the salient pole of the armature module may be disposed on the magnetic body at least in line symmetry, the salient pole may be arranged in the point symmetry or in the vertical direction and the left and right direction symmetry.
  • the magnetic material of the armature module may be an arc shape of the shape surrounding the secondary member.
  • the secondary member may be assembled by fitting the permanent magnet module to at least one of the inner pipe and the outer pipe having a length in the advancing direction.
  • each permanent magnet in each permanent magnet module is different in polarity from neighboring permanent magnets in the travel direction.
  • the length of the primary member or the secondary member is longer than the length of one unit consisting of the S armature module and the P permanent magnet module.
  • S is determined as one of multiples of a constant that determines the predetermined phase difference
  • the constant may be an odd number of three or more.
  • the constant is 3 and the (S, P) may be any one of (3, 2), (3, 4), (9, 8), (9, 10).
  • the constant is 3 and S is 9, when three currents having a phase difference of 120 degrees are U, V, and W, respectively, nine consecutive armature modules are supplied with a current of UVWUVWUVW or a current of UuUVvVWwW. Can be supplied, where the lowercase letter is in reverse with the uppercase letter.
  • the magnetic material of the armature module may be formed in a stratified form.
  • the linear electric motor may further include a guide mechanism for moving the mover while each salient pole and each permanent magnet corresponding thereto maintain a constant gap.
  • the guide mechanism may consist of a guide rail and a roller or slide, the guide rail may be mounted to the stator or support mechanism and the roller or slide may be mounted to the mover.
  • the guide mechanism may be arranged at least linearly, at least one of the guide mechanism may be disposed between the salient pole and the salient pole.
  • each armature module may be formed on both ends of the arc of the magnetic body auxiliary auxiliary poles without sensing the coil, the auxiliary permanent magnet may be formed at a position corresponding to the auxiliary protrusion in each permanent magnet module.
  • the stator consists of a plurality of pieces, and each piece listed in the direction of travel of the mover may be secured to the support mechanism via a fastening tool.
  • Linear motor according to an embodiment of the present invention can solve the problem of the wear of the guide by the magnetic attraction force commonly generated in the flat plate linear motor, it is possible to obtain a large capacity thrust or a high feed speed with a small size, Since each element is modular, there is an advantage that it is easy to assemble and can be modified in various forms.
  • the linear motor according to the embodiment of the present invention has the advantage of solving the problem of sagging due to the load of the secondary member, and can be used for long distance transport.
  • FIG. 1 illustrates an embodiment of an armature module of an inner magnet type linear electric motor having a permanent magnet as the secondary member inside and an armature as the primary member outside,
  • Figure 2 shows an embodiment of a permanent magnet module of the inner magnet linear motor
  • FIG. 3 illustrates the principle of generating linear thrust by a combination of the armature module and the permanent magnet module of FIGS. 1 and 2;
  • Figure 6 shows a cross section of a linear motor according to another embodiment of the present invention
  • FIG. 7 shows an embodiment of a transfer device in which a stage is mounted on a primary member consisting of an armature module U, an armature module V, an armature module W,
  • FIG. 8 illustrates an example of a method of connecting power to an armature module.
  • FIG. 11 illustrates embodiments in which the number of salient poles formed in the armature module is varied.
  • FIG. 12 illustrates an embodiment in which a guide mechanism for allowing the primary member to smoothly move in a travel direction is installed.
  • Figure 14 shows an embodiment in which the guide mechanism is installed in another form
  • FIG. 16 illustrates an embodiment in which the primary member is configured in a mold form
  • FIG. 17 illustrates an example in which a curved section electric motor is formed by arranging a curved section in a secondary member.
  • Figure 18 shows a simplified configuration of a servo system for driving a linear motor according to the present invention.
  • the linear motor according to the present invention except for the cross-sectional shape of the armature module and the permanent magnet module, the driving principle is almost the same as the driving principle of the linear motor described in the application number 10-2009-0090806, the first application number 10-2009 The structure and driving principle of the cylindrical linear motor described in -0090806 will be described.
  • the cylindrical linear electric motor described in Application No. 10-2009-0090806 may comprise a primary member, a secondary member and a support mechanism.
  • 1 and 2 show an armature and a permanent magnet of an inner magnet type linear electric motor having a permanent magnet as a secondary member inside and an armature as a primary member outside.
  • the primary member is composed of a plurality of armature modules 10 arranged in a line in the advancing direction, as shown in Figure 1, each armature module 10 in a radial direction to the ring-shaped magnetic core (1)
  • the coil 3 may be wound around four or more protrusions 2 protruding from each other.
  • the ring shape is not limited to the circular ring, and may be used as a rectangular ring, an octagonal ring, or the like, such as a rectangular shape, an octagonal shape, etc. forming a closed circuit.
  • the secondary member is composed of a plurality of permanent magnet modules 20 arranged at predetermined intervals in the advancing direction, and each permanent magnet module 20 includes a protrusion 2 wound around the coil 3.
  • the permanent magnets 4 can be formed in the circumferential direction with the same number of poles as the number of poles.
  • each armature module 10 a current is supplied to the coil 3 so that a traveling magnetic field is formed in each of the salient poles 2 on which the coils 3 are wound.
  • the coil 3 of the at least one armature module 10 includes a current having a phase difference from that of the other armature module 10 so that the thrust is generated by the suction force and the repulsive force between the corresponding permanent magnets 4. Can be supplied.
  • the support mechanism is connected to the stator using either the primary member or the secondary member as the stator and the rest as the mover so that the movable member maintains a constant gap between the pole 2 of the armature module 10 and the permanent magnet 4. Proceed relative to the stator.
  • the magnetic poles of neighboring poles 2 in the armature module 10 are different from each other so that magnetic flux of high density flows smoothly between the poles 2 of the armature module and the corresponding permanent magnets 4.
  • the polarity of the first salient pole and the third salient pole is the same in the clockwise direction from the predetermined reference position, and the second salient pole and the fourth salient pole are the same.
  • Each of the protrusions 2 may be wound by the coil 3 so that the poles have the same polarity.
  • the permanent magnet yoke and the second permanent magnet and the fourth permanent magnet to which the magnetic flux from the first or third salient pole corresponds
  • the cores can then reenter the first and third salient poles to form a flux closure loop.
  • the core 1 can be manufactured in an unstructured form, thereby reducing the production cost. In addition, mass production is possible with a more durable structure.
  • the core 1 manufactured in the laminated form is used to reduce the eddy current loss and hysteresis loss generated in the core 1. Can be reduced.
  • each permanent magnet module 20 has the same number as the salient poles 2 of the armature module 10, that is, four or more even number of permanent magnets 4 are arranged in the circumferential direction to form a ferromagnetic material. It is fixed to the yoke 5 and is arranged to be another pole between neighboring permanent magnets 3. At this time, each of the permanent magnets 3 enters the yoke 5 or passes through the corresponding permanent magnet 4 to which the magnetic flux from the salient pole 2 on which the coil 3 is wound corresponds.
  • the center direction that is, the radial direction, that is, magnetized in the outer circumference N pole / inner circumference S pole or the outer circumference S pole / inner circumference N pole. Since the direction of the permanent magnet magnetic field is formed in the circumferential center direction, and becomes perpendicular to the direction in which thrust is generated (moving direction of the actuator), the efficiency of the magnetic circuit is high.
  • Neighboring permanent magnet modules 20A and 20B are spaced apart at regular intervals or arranged with a non-magnetic spacer 6 interposed therebetween, so as to be a different pole between the two permanent magnets 4 positioned at corresponding positions in the circumferential direction. Is placed.
  • the permanent magnet module A 20A is formed with a permanent magnet 4 in the order of NSNS from a reference position in the circumferential direction, and the permanent magnet module adjacent to the permanent magnet module A 20A.
  • the permanent magnets 4 are formed in the B 20B in the SNSN order of opposite polarity. End stators 7 may be disposed at both ends of the secondary member.
  • FIG. 3 illustrates a principle in which thrust in a linear direction is generated by a combination of two or more armature modules 10 and two or more permanent magnet modules 20 described in FIGS. 1 and 2. Part of the cut section.
  • U, V, and W represent the poles 2 positioned at the same position with respect to the circumferential direction in the armature modules 10U, 10V, and 10W of FIG. 1, and S / N are the protrusions U, V.
  • FIG. Lists the permanent magnet (3) placed in the position opposite to W.
  • a single phase current may be supplied to a coil of each armature module 10, and three phase currents may be applied using one arm of three armature modules 10U, 10V, and 10W. . That is, in the three-phase case, a current having a phase difference of 120 degrees from a neighboring module is supplied to the coils of the armature modules 10U, 10V, and 10W.
  • the dolpoles U and W which have become S poles with smaller magnetic force than the N pole of the dolpole V, exert repulsive and suction forces on the permanent magnet S pole and the permanent magnet N pole, respectively, but cancel each other and do not affect the traveling direction.
  • the permanent magnet moves by 2/3 pole intervals, and this time, the pole pole W is positioned between the poles S and N of the permanent magnets.
  • a current of 120 degrees in phase is applied to the coil of each pole pole.
  • the alternating current of the peak value (P) flows to the wound coil in the (+) direction so that the protrusion W becomes the N pole, and the coil wound around the protrusions U and V has a peak value (P) / square root (2) magnitude in the (-) direction.
  • the alternating current flows through and U and V become S poles.
  • the N pole pole W moves the permanent magnet to the right by applying suction to the permanent magnet S pole and a repulsive force to the permanent magnet N pole.
  • the pole pole U which is smaller than the N pole of the pole pole W, becomes a S pole with a magnetic force smaller than the N pole.
  • V applies suction and repulsive force to the permanent magnet N pole and the permanent magnet S pole, respectively, but cancel each other out.
  • the permanent magnet moves to the right. That is, the three-phase current applied to each armature module generates a moving magnetic field in the salient poles U, V, and W, thereby generating a thrust moving to the right in the moving magnet.
  • the protrusions U, V, and W assume that the coils are wound in the same direction, but the coils may be wound in the opposite direction to the protrusions placed at the corresponding positions of the neighboring armature modules.
  • U and W can be wound in the same direction
  • V can be wound in the opposite direction to U and W.
  • power having a phase difference can be supplied to generate a thrust to move the permanent magnet in the same direction. have.
  • the thrust for moving the permanent magnets is increased in proportion to the sum of the surface areas of the protrusions and the permanent magnets, and in proportion to the number of armature modules 10 arranged in the traveling direction, and applied to the coil. It also has a proportional relationship with the magnitude of the current, the number of turns of the coil winding the pole, and the magnitude of the magnetic force of the permanent magnet.
  • the first example of FIG. 3 is an example of the basic combination of the armature module three phase and the permanent magnet two poles
  • the second example of FIG. 3 is an example of the armature module three phase and the permanent magnet four pole combination which is an extension of the first combination.
  • the principle of generating thrust is the same, and a combination of three-phase and eight-poles is also possible.
  • thrust occurs based on a combination of the number S of armature modules that are multiples of the motor constant and the number P of permanent magnet modules that are multiples of 2 (N pole and S pole), where the motor constant is a three-phase power source.
  • the motor constant is a three-phase power source.
  • driving an armature in case of driving with a three- or five-phase power source, it is generally set to an odd number of three or more, and the phase difference of the current applied to the coil of each armature module is determined by the motor constant.
  • Table 1 lists the combination of armature modules and permanent magnet modules for three-phase motors, where nine armature modules and eight or ten permanent magnet modules are advantageous in terms of efficiency or ripple.
  • the primary member or the plurality of armature modules composed of a plurality of armature modules
  • One of the secondary members of the permanent magnet module must be configured to be longer than the unit length to secure an effective distance capable of generating a thrust for moving the mover.
  • the length of the overlap between the primary member and the secondary member is longer than the unit length (the number of armature modules or the number of permanent magnet modules is P or more) to ensure the effective distance for generating thrust.
  • the thrust may increase in proportion to the overlap length.
  • the core 1 of the armature module 10 is circular, but a polygon of point symmetry or line symmetry is possible, for example, hexagonal, octagonal, or pentagonal, and the outer shape of the core 1 for a safe posture. It may be in the form of a square, a through hole may be formed in the corner of the rectangular core (1) in order to facilitate the coupling with the neighboring armature module (10).
  • the four slot type motor has four salient poles in the circumferential direction
  • eight thrust poles are formed. It can be transformed into slot type motor.
  • the number of protrusions is increased instead of raising the cross-sectional area of the poles, the amount of magnetic flux can be increased while maintaining the thickness of the core, which is advantageous for miniaturization of the motor or improvement of thrust.
  • FIG. 1 to 3 show an embodiment of the inner magnet type in which the primary member of the armature module is located outside the secondary member of the permanent magnet module, but FIG. 4 shows that the armature module has a permanent magnet module inside thereof. An embodiment of an outer permanent magnet linear motor located outside is illustrated.
  • the operation principle is the same as that of the inner magnet type, except that the salient pole is formed to protrude from the core in the radial direction (radiation) and the permanent magnet opposed to the salient pole is fixed inside the ring-shaped yoke.
  • FIG. 1 and 4 illustrate an embodiment in which three-phase current is applied to each armature module 10 of the primary member in the order of UVW, UVW, and UVW, but instead, three-phase current in the order of UuU, VvV, and WwW. It is also possible to apply, where the lower case means that the current in the opposite phase to the upper case is supplied.
  • the primary member is composed of independent armature modules (not ferromagnetic material, which is the same material as the core of the primary member), they are independent of each armature module if the same size of power is provided to each armature module. This flow causes less variation in thrust generated through each armature module, resulting in less ripple in thrust. Since the magnetic flux is distributed evenly through each salient pole without being biased to a specific salient pole, even though the cross-sectional area of the core of the armature module is small, many fluxes can flow.
  • the magnetic flux flows between the armature modules by independent magnetic circuits, there is no magnetic flux flowing in the same direction as the moving direction of the mover, so that the magnetic flux flows only in the direction perpendicular to the traveling direction, so that leakage is independent of thrust.
  • the magnetic flux is small and the motor efficiency can be improved.
  • the linear motor described in the application No. 10-2009-0090806 has a structure in which the armature module surrounds the permanent magnet module in a ring shape, and in the movable coil type motor, the secondary member of the permanent magnet is fixed only at both ends, so that high precision is achieved in a short section.
  • the transfer device that requires a long distance
  • the secondary member is applied to a long-distance transfer device, the deflection phenomenon may occur due to the load of the permanent magnet itself.
  • the cross section of the motor (progression direction) so that the secondary member can all be grounded in the traveling direction or supported on the floor at regular intervals.
  • FIG. 5 illustrates a linear motor according to an embodiment of the present invention.
  • the linear electric motor according to the present invention like the linear electric motors of FIGS. 1 to 3, includes a primary member composed of a plurality of armature modules arranged in a line in a travel direction, and a plurality of permanent magnet modules disposed at predetermined intervals in a travel direction. It may be configured to include a secondary member, and a support mechanism, the secondary member and the support mechanism may be combined into one.
  • the armature module according to the present invention unlike the armature module of FIG. 1 that forms a closed circuit in a ring shape, has an arc in which the circumferential section of the magnetic ring is omitted in the armature module of FIG. 1.
  • a plurality of protrusions protrude toward the permanent magnet module so as to be at least linearly symmetrical (centered on the BB ′ line) on the magnetic core having an arc shape or C shape, and coils are wound around each of the poles.
  • the arc may be an arc that is part of a circle, may be part of a non-circular polygonal closed loop, for example, a hexagonal, octagonal, or pentagonal ring, a combination of polygonal arcs or a polygonal arc. It is also possible to form a combination of and an arc, which is advantageously at least linearly symmetrical.
  • the placement of a plurality of salient poles symmetrically about the center of the permanent magnet module is advantageous to offset the magnetic suction forces generated between the salient poles and the permanent magnets. It is advantageous to arrange a plurality of salient poles so as to be linearly symmetrical with respect to the vertical direction).
  • the permanent magnet module has a shape in which the permanent magnets having the same number of poles as the number of the poles wound around the coil in the armature module are placed at positions facing the corresponding poles.
  • the secondary member composed of a plurality of permanent magnet modules may be fixed to the support mechanism (base) or to the support mechanism at regular intervals over the entire section in the advancing direction, and as shown in FIG. 5, the secondary member
  • the base serving as a support mechanism for fixing the can be fixed to the floor through a plurality of fixing bolts aligned in the advancing direction from side to side with respect to the secondary member.
  • FIG. 6 is a cross-sectional view of a linear motor according to another embodiment of the present invention.
  • the armature module and the permanent magnet module of FIG. 5 are basic models in which coils are wound around all the poles.
  • the poles P1 or P4 are located farthest in the circumferential direction from the center of the C-shaped magnetic body. Since the magnetic flux flowing only toward the neighboring poles P2 or P3 close to the center of the C-shaped magnetic body is generated, that is, the closed loop of the magnetic flux is formed only in one direction at the pole pole P1 (or P4). Can't let this flow.
  • the auxiliary permanent poles P0 and P5 without coils are formed at both ends of the C-shaped magnetic body in the armature module, and the auxiliary permanent magnet at the position corresponding to the auxiliary protrusion in the permanent magnet module.
  • auxiliary salient pole type model so that the closed loop of magnetic flux can be formed in both directions even in the salient pole P1 or P4 which is located farthest in the circumferential direction from the center of the C-shaped magnetic body among the coiled salient poles. Can be.
  • the auxiliary permanent magnet of the permanent magnet module may be omitted.
  • a roller is formed on the primary member and a guide rail is formed on the secondary member so that the primary member can move in the advancing direction while maintaining a constant gap between the protrusion of the primary member and the corresponding permanent magnet of the secondary member.
  • Guide rail a plurality of rollers and guide rail pairs may be formed in a line symmetrical form around the BB 'line.
  • the rollers are formed between the salient poles in the armature module, and likewise the guide rails are formed between the permanent magnets in the permanent magnet module.
  • the armature module U, the armature module V, and the armature module W can be used as a transfer device by mounting a stage thereon.
  • FIG. 8 illustrates an example of a method of connecting power to an armature module.
  • the U-phase armature module is composed of a C-shaped magnetic body and a plurality of protrusions (four in FIG. 8) protrude in the direction toward the secondary member, and coils U1, U2, U3, U4 is wound up
  • the V phase armature module and the W phase armature module have the same structure as the U phase armature module.
  • connection method of the coil can be selected according to the design specification, such as series connection, parallel connection, serial and parallel connection.
  • the coils of the armature module may be wound so that neighboring poles may form different magnetic poles when currents of the same phase flow.
  • U2 and U4 may be wound counterclockwise.
  • neighboring salient poles may be connected so that different magnetic poles are formed.
  • FIG. 9 shows an example of a method of assembling a secondary member of a linear electric motor according to the present invention.
  • the permanently arranged permanent magnet module A and the permanent magnet module B have different poles between the two permanent magnets in corresponding positions, and a spacer is disposed between the permanent magnet modules so that neighboring permanent magnet modules maintain a constant distance. can do.
  • Permanent magnet modules and spacers can be embedded in the outer pipe or fitted into the inner pipe to simplify assembly and protect the permanent magnet.
  • only one of the inner pipe and the outer pipe may be used, or both.
  • the inner and outer pipes may be made of nonmagnetic material, or weak magnetic material may be used to reduce ripple.
  • the permanent magnet may be attached to the yoke surface of the magnetic material or embedded in the yoke. It is also possible to wear a permanent magnet protective cover to protect the permanent magnet attached to the yoke surface.
  • FIG. 11 illustrates embodiments in which the number of salient poles formed in the armature module is varied.
  • the salient poles are arranged in the point-symmetrical form in the ring-shaped armature module so that the magnetic attraction force generated between the salient poles and the permanent magnets is cancelled. Therefore, four or more even salient poles should be formed in the armature module.
  • a C-shaped armature module having at least linear symmetry is employed to prevent sagging while lengthening a secondary member composed of a plurality of permanent magnet modules.
  • the salient poles can be arranged to achieve symmetrical line symmetry in a state where the C-shaped armature module faces the open portion of the C-shaped downwards, and as shown in FIG. 11, the number of salient poles is 2; It is also possible to arrange more than one or an odd number.
  • the remaining even number of salient poles may be arranged to be vertically symmetrical and left-right linearly symmetrical to the extent possible.
  • the remaining number of even salient poles except for one salient pole is disposed symmetrically so that the left and right components of the magnetic suction force cancel each other (the one salient pole is as in FIG. Likewise, it is disposed at a position where magnetic suction force of the left and right components does not occur), and the vertical direction component of the magnetic suction force generated by the even number of salient poles (exactly between the salient poles and the corresponding permanent magnets) except for one salient pole
  • the magnetic suction force having only the vertical component generated in the one salient pole may be disposed at a position such that the magnetic suction force can be canceled as much as possible.
  • the position of the salient poles, the number of windings wound around the salient poles, and the strength of the permanent magnets corresponding to the salient poles may be adjusted so that the magnetic suction force generated between the salient poles and the corresponding permanent magnets cancel each other. have.
  • FIG. 12 illustrates an embodiment in which a guide mechanism for allowing a primary member, which is a mover, to move smoothly in a moving direction is installed.
  • a guide mechanism composed of a roller and a guide rail is illustrated.
  • the guide mechanism can be a guide rail and a roller, a guide rail and a slide.
  • the C-shaped magnetic body of the armature module extends to the vicinity of the base supporting the primary member even after the protrusion furthest from the center of the C-shape, and the rollers constituting the guide mechanism are mounted at the extended end thereof.
  • the guide rail is arrange
  • the roller is arrange
  • the spacer When the spacer is inserted to maintain a predetermined distance from the neighboring armature module, the spacer may have a cross-sectional shape similar to that of the armature module, and the roller may be mounted at the same position as the armature module for smooth movement of the primary member.
  • the rollers may be mounted only on the spacers between the armature modules without the rollers mounted on the armature module.
  • FIG 13 shows an embodiment in which the guide mechanism is installed in another form.
  • rollers are mounted at the center and the end of the C-shaped magnetic body, respectively, the guide rails corresponding to the rollers in the center are mounted on the secondary member, and the guide rails corresponding to the rollers or the slides at the ends fix the secondary members. Is mounted on the base.
  • the magnetic body forming the armature module can be extended to support the rollers or slides even after the salient pole farthest from the center of the C shape, and the armature module is placed after the salient pole farthest from the center of the C shape. It is also possible to extend the magnetic material and other materials to support the rollers or slides.
  • Fig. 14 shows an embodiment in which the guide mechanism is provided in another form, and is an embodiment in which the guide mechanism is mounted on the inside and the outside of the C-shaped magnetic body, respectively.
  • the roller and the guide rail are mounted on the inside of the C-shaped magnetic body, and the slide and the guide rail are mounted on the outside, and the outer guide rail is mounted on the base fixing the secondary member.
  • the rollers (or slides) are attached to the primary member which is the mover, and the guide rails are the secondary members or 2 which are the stators. It may be attached to a support mechanism for fixing the vehicle member.
  • the guide mechanism it is advantageous to arrange the guide mechanism so as to be linearly symmetrical when viewed from a cross section perpendicular to the advancing direction of the electric motor.
  • FIG. 15 illustrates an embodiment in which a secondary member consisting of a plurality of pieces is fixed to a base.
  • the pieces forming the secondary member are arranged in a traveling direction and each piece is fixed to a base using a fastening tool such as a fixing bolt.
  • a fastening tool such as a fixing bolt.
  • the fixing bolt may be fixed to the permanent magnet module or to a spacer disposed between the permanent magnet modules rather than the permanent magnet module.
  • FIG. 16 illustrates an embodiment in which the primary member is formed in a mold.
  • the primary member consists of an armature module U, an armature module V, and an armature module W
  • a spacer having a hole is arranged to maintain a constant distance between each armature module, and the magnetic core of each armature module.
  • the armature modules U, V, W, and spacers may be assembled through a through bolt in a predetermined number of holes, and then molded using a nonmagnetic material to form a mold primary member. Therefore, the magnetic material and the coil of the armature module can be prevented from being exposed to the outside.
  • FIG. 17 illustrates an example in which a curved drive type electric motor is configured by arranging a curved section on a secondary member.
  • the track for the mover (primary member) of the motor can be formed in various shapes such as circular or elliptical, and two or more primary members can be placed on the track to It can also be used as a mover driven type.
  • 5 to 17 illustrate embodiments in which the secondary member is fixed to the support mechanism and the primary member is movable, but the present invention is not so limited, and the primary member is fixed to the support mechanism and the secondary member is Embodiments of becoming a mover are also possible.
  • the cross section of the electric motor has been described for the embodiment of the shape (inner magnet type) in which the armature module wraps the permanent magnet module, the present invention is limited thereto. 4, an embodiment in which the cross section of the electric motor has a shape (outer magnet type) in which the permanent magnet module surrounds the armature module is possible.
  • the secondary member may be fixed to the support mechanism so that the primary member is a mover, or the primary member may be fixed to the support mechanism and the secondary member may be a mover.
  • Figure 18 shows a simplified configuration of a servo system for driving a linear motor according to the present invention. Other elements except for the linear motor in FIG. 18 may be used as they are applied to the conventional linear motor.
  • the servo system includes a drive amplifier for generating a current to be applied to the motor, a current sensor for detecting a current applied to the motor from the drive amplifier, a linear sensor for detecting a position or moving speed of the linear motor mover, a current sensor and / or a linear sensor. It may be configured to include a controller for controlling the driving amplifier according to the control command based on the signal detected by the.
  • the driving amplifier may include a converter for converting an AC power into a direct current and an inverter for generating a current required to drive a motor.
  • the inverter generates a power source suitable for the driving method of the linear motor according to the present invention, for example, two-phase alternating current, three-phase alternating current, two-phase rectified current, three-phase rectified current, and the like to be applied to the armature module of the linear motor.
  • a power source suitable for the driving method of the linear motor according to the present invention, for example, two-phase alternating current, three-phase alternating current, two-phase rectified current, three-phase rectified current, and the like to be applied to the armature module of the linear motor.
  • the amplitude of the current, frequency, etc. can be changed to adjust the position of the mover, the speed, the magnitude of the thrust for moving the mover, and the like.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

La présente invention porte sur un moteur linéaire. Selon un mode de réalisation de la présente invention, un moteur linéaire peut comprendre : un élément primaire comprenant une pluralité de modules d'induit ; un élément secondaire comprenant une pluralité de modules d'aimant permanent ; et un élément support. Chaque module d'induit comprend au moins deux pôles saillants qui font saillie sur un corps magnétique incurvé en direction de l'élément secondaire, des bobines à travers lesquelles circule un courant de même phase sont bobinés sur chaque pôle saillant, chaque module d'aimant permanent possède des aimants permanents, qui ont un nombre de pôles égal à celui des pôles saillants inclus dans chaque module d'induit, S modules d'induit disposés dans une direction de mouvement et P modules d'aimant permanent (où P est un multiple de 2) sont groupés en une unité, une énergie électrique ayant une différence de phase prédéterminée pour générer une force motrice au moyen de champs magnétiques mobiles est appliquée à chaque module d'induit et l'un ou l'autre de l'élément primaire ou de l'élément secondaire, constituant l'excitateur, est mis en mouvement par la force motrice engendrée, tandis que l'autre, constituant le stator, est fixé à l'élément support. De cette façon, on peut réaliser un moteur qui résout les problèmes provoqués par l'attraction magnétique, qui est facile à assembler et qui est d'un haut rendement et autorise un déplacement sur de longues distances.
PCT/KR2010/006342 2009-10-20 2010-09-16 Moteur linéaire WO2011049298A2 (fr)

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KR1020090099828A KR100964539B1 (ko) 2009-10-20 2009-10-20 선형 전동기
KR10-2009-0099828 2009-10-20

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WO2011049298A3 WO2011049298A3 (fr) 2011-07-14

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP3261235A1 (fr) * 2016-06-23 2017-12-27 LG Electronics Inc. Moteur alternatif à flux transversal et compresseur alternatif le comprenant
CN116388434A (zh) * 2022-11-21 2023-07-04 上海果栗自动化科技有限公司 定子及输送系统

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101732636B1 (ko) 2010-08-23 2017-05-24 주식회사 코베리 선형 전동기
KR101798548B1 (ko) * 2011-03-08 2017-12-12 주식회사 코베리 선형 전동기
CN103163038B (zh) * 2013-04-02 2014-11-26 山东大学 电磁驱动高速切削模拟实验装置
JP6559235B2 (ja) * 2015-05-29 2019-08-14 株式会社安川電機 搬送システム及び搬送設備構築方法
JP7048392B2 (ja) * 2018-03-30 2022-04-05 株式会社島精機製作所 横編機
KR102457073B1 (ko) * 2021-01-18 2022-10-24 주식회사 에스엔이노베이션 왕복동 스위치드 릴럭턴스 모터 구동식 엔진
CN113084536A (zh) * 2021-04-12 2021-07-09 南通佳润精密科技有限公司 一种角度可调的机床设备用磁悬浮导轨
KR102612375B1 (ko) * 2021-04-28 2023-12-11 주식회사 코베리 전동기

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980025941A (ko) * 1996-10-07 1998-07-15 김광호 직선운동형 스위치드 릴럭턴스 모터
JP4492118B2 (ja) * 2003-12-16 2010-06-30 株式会社安川電機 リニアモータおよび吸引力相殺形リニアモータ
KR100694673B1 (ko) * 2005-05-06 2007-03-14 주식회사 맥시스 원통형 영구자석을 이용한 리니어 모터
JP2008193760A (ja) * 2007-01-31 2008-08-21 Tsubakimoto Chain Co リニアモータ
EP2091137B1 (fr) * 2008-02-18 2014-06-25 Siemens Aktiengesellschaft Partie primaire et machine électrique linéaire dotée d'une compensation d'ondulation de force
KR20090094536A (ko) * 2008-03-03 2009-09-08 (주)이심기술 공작기계용 리니어모터

Cited By (5)

* Cited by examiner, † Cited by third party
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EP3261235A1 (fr) * 2016-06-23 2017-12-27 LG Electronics Inc. Moteur alternatif à flux transversal et compresseur alternatif le comprenant
EP3691097A1 (fr) * 2016-06-23 2020-08-05 LG Electronics Inc. Moteur alternatif à flux transversal et compresseur alternatif le comprenant
US10862383B2 (en) 2016-06-23 2020-12-08 Lg Electronics Inc. Transverse flux reciprocating motor and reciprocating compressor having a transverse flux reciprocating motor
CN116388434A (zh) * 2022-11-21 2023-07-04 上海果栗自动化科技有限公司 定子及输送系统
CN116388434B (zh) * 2022-11-21 2024-02-20 果栗智造(上海)技术股份有限公司 定子及输送系统

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TW201136107A (en) 2011-10-16
WO2011049298A3 (fr) 2011-07-14

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