KR100959041B1 - Electromagnet for magnetic levitation vehicle - Google Patents

Electromagnet for magnetic levitation vehicle Download PDF

Info

Publication number
KR100959041B1
KR100959041B1 KR1020100023132A KR20100023132A KR100959041B1 KR 100959041 B1 KR100959041 B1 KR 100959041B1 KR 1020100023132 A KR1020100023132 A KR 1020100023132A KR 20100023132 A KR20100023132 A KR 20100023132A KR 100959041 B1 KR100959041 B1 KR 100959041B1
Authority
KR
South Korea
Prior art keywords
magnetic
electromagnet
rail
magnetic levitation
unit
Prior art date
Application number
KR1020100023132A
Other languages
Korean (ko)
Inventor
김차현
안영목
Original Assignee
(주) 세스
(주)신한전자
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주) 세스, (주)신한전자 filed Critical (주) 세스
Priority to KR1020100023132A priority Critical patent/KR100959041B1/en
Application granted granted Critical
Publication of KR100959041B1 publication Critical patent/KR100959041B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/03—Electric propulsion by linear motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/04—Magnetic suspension or levitation for vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/08—Sliding or levitation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G54/00—Non-mechanical conveyors not otherwise provided for
    • B65G54/02—Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/30—Tracks for magnetic suspension or levitation vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Abstract

PURPOSE: An electromagnet of a magnetic levitation transfer apparatus is provided to prevent the flux concentration due to the bending of a rail by forming a magnetic flux blocking groove on the upper side of a magnetic part. CONSTITUTION: An electromagnet(100) comprises a base part(110), a coil(120), a magnetic part(130), and a rotating part. The coil is wound in the base part. The magnetic part is vertically combined in both sides of the base part. A fastening part is inserted into a binding hole of the magnetic part in order to combine the magnetic part in the base part. The upper side of the magnetic part is convex. A plurality of magnetic flux blocking grooves(140) are formed in the upper side of the magnetic part. The rotating unit rotates the base part according to the movement of a magnetic levitation vehicle.

Description

Electromagnet of magnetic levitation feeder {Electromagnet for magnetic levitation vehicle}

The present invention relates to an electromagnet of a magnetic levitation conveying device, more specifically, the magnetic flux blocking groove is formed on the upper surface of the magnetic force acting on the rail and the attraction force to prevent the magnetic flux is concentrated when the magnetic levitation conveying body is propelled. To an electromagnet of a magnetic levitation conveying device.

The magnetic levitation conveying device is a device that floats a conveying body on a rail by using magnetic force. The magnetic levitation conveying device has no contact between the conveying body and the rail, so the noise and vibration are very low and the high speed can be maintained.

In order for the magnetically levitated vehicle to move, two forces are required to raise the carrier from the rail and to move the carrier in the desired direction. The method of floating the conveying body on the rail can be largely divided into an electrodynamic suspension using the repulsive force of the magnet anode and an electromagnetic suspension using the attractive force between the magnet and the magnetic body. In general, repulsion has advantages in terms of control over suction, but at low speeds, the magnetic flux induced by the coil is not sufficient to float the carrier, and wheels should be used at speeds below about 100 km / h. On the other hand, the suction type is complicated to maintain the balance by controlling the floating force of the conveying body, but it has the advantage that it can be injured at low speed.

In the case of the suction type magnetic levitation transfer device, it is important how the attraction force between the electromagnet and the magnetic body is affected, which affects the magnetic flux density of the electromagnet. The magnetic flux density of the electromagnet may vary depending on the structure of the rail. The magnetic force is inversely proportional to the square of the distance, so it is sensitive to minute changes in distance. Particularly, in the part where the rail is not horizontal, the magnetic flux of the electromagnet is directed toward the rail close to the minute distance difference between the rail and the electromagnet. That is, the magnetic flux tends to occur in a specific direction due to the bending of the rail.

When the magnetic flux is generated, it is difficult to expect accurate guiding force and flotation force. Therefore, the maglev carrier body is difficult to balance, and in severe cases, the maglev carrier body may fall out of control and fall. Even if the magnetically levitated vehicle does not fall, the flux tendency can cause serious problems in the control of the magnetic levitated vehicle. Therefore, there is a growing interest in a technology that can prevent the magnetic flux of the electromagnet, regardless of whether the rail is horizontal.

It is an object of the present invention to provide an electromagnet of a magnetic levitation conveying device capable of preventing magnetic flux tendency regardless of the rail structure.

In order to achieve the above object, the electromagnet of the magnetic levitation transfer apparatus according to the embodiment of the present invention includes a base and a magnetic force. The coil is wound around the base. The magnetic force is coupled perpendicularly to both sides of the base. The magnetic force acts on the rail and the attraction force. The magnetic flux blocking groove is formed on the upper surface of the magnetic force portion.

Electromagnet of the magnetic levitation transfer apparatus according to an embodiment of the present invention can be formed convex the upper surface of the magnetic force.

Electromagnet of the magnetic levitated conveying apparatus according to an embodiment of the present invention may be formed with a plurality of magnetic flux blocking groove formed in the upper surface of the magnetic force portion in the width direction of the magnetic force portion.

Electromagnet of the magnetic levitation transfer apparatus according to an embodiment of the present invention may further include a rotating part. The rotating part may rotate the base part according to the movement of the magnetically levitated conveying body.

Electromagnet of the magnetic levitation transfer apparatus according to the present invention can prevent the magnetic flux is concentrated when the magnetic levitation carrier is propelled by the magnetic flux blocking groove is formed on the upper surface of the magnetic force. Therefore, it is possible to easily control the magnetic levitation conveyer regardless of the structure of the rail portion.

1 is a perspective view showing an electromagnet of the magnetic levitation transfer apparatus according to an embodiment of the present invention.
2 is a cross-sectional view showing an electromagnet of the magnetic levitation transfer apparatus according to an embodiment of the present invention.
3 is a view showing a longitudinal cross section of the electromagnet according to the embodiment of the present invention.
4 is a view showing a cross-section in the width direction of the electromagnet according to the embodiment of the present invention.
5 is a view showing an electromagnet of the magnetic levitation conveying apparatus having a rotating part according to an embodiment of the present invention.
6 is a view conceptually showing a magnetic levitation transfer device equipped with an electromagnet according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it is noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated.

1 is a perspective view showing an electromagnet of the magnetic levitation transfer device according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing an electromagnet of the magnetic levitation transfer device according to an embodiment of the present invention.

As shown in Figure 1 and 2, the electromagnet 100 of the magnetic levitation transfer apparatus according to an embodiment of the present invention includes a base 110, a coil 120, a magnetic force 130.

The base 110 becomes the base of the electromagnet 100. The coil 120 is wound around the base 110. The number of turns of the coil 120 depends on the flotation force of the desired electromagnet 100. The coil 120 is wound in the longitudinal direction of the base 110.

The magnetic force 130 is vertically coupled to both sides of the base 110. That is, the magnetic force unit 130 is coupled to the left and right sides of the base 110, respectively. The magnetic force unit 130 may have a coupling hole 131 for coupling with the base 110. The fastening means 132 such as a screw is inserted into the coupling hole 131 formed in the magnetic force 130 to couple the magnetic force 130 to the base 110. In the present embodiment, the magnetic force unit 130 and the base unit 110 are separately formed and coupled, but in another embodiment, the magnetic unit 130 and the base unit 110 may be integrally formed.

When the electromagnet 100 is mounted on the magnetically levitated conveying body, the upper surface 133 of the magnetic force unit 130 faces the rail unit. The upper surface 133 of the magnetic force unit 130 is the rail and the attraction force acts by the magnetic force, the conveying body is floating by this attraction force. The magnetic levitation conveying body may be various conveying means such as a magnetic levitation train, a model magnetic levitation train, a magnetic levitation conveying body for a clean room.

In the present embodiment, the magnetic flux blocking groove 140 is formed on the upper surface 133 of the magnetic force unit 130. In one embodiment, the magnetic flux blocking groove 140 may be formed in plural in the width direction of the magnetic force unit 130. The number and size of the magnetic flux blocking grooves 140 may vary depending on the width and length of the magnetic force unit 130.

The magnetic flux blocking groove 140 blocks the magnetic flux of the magnetic force portion 130 from being directed toward the rail portion. That is, since the magnetic flux that is directed in a specific direction does not exceed the magnetic flux blocking groove 140 formed in the magnetic force unit 130, the magnetic flux in the upper surface 133 of the magnetic force unit 130 by the magnetic flux blocking groove 140 It is isolated in a blocked space. Therefore, magnetic flux tendency is prevented as a whole of the magnetic force unit 130.

3 is a view showing a longitudinal cross section of the electromagnet according to an embodiment of the present invention, Figure 4 is a view showing a cross section in the width direction of the electromagnet according to an embodiment of the present invention.

3 and 4, the electromagnet 100 according to the embodiment of the present invention may convexly form the upper surface 133 of the magnetic force unit 130. There are a number of ways to convex the upper surface 133 of the magnetic force unit 130, but in this embodiment, the upper surface 133 of the magnetic force unit 130 is formed to have a constant curved surface in the longitudinal direction, the width It is formed to have a constant curved surface in the direction. For example, FIG. 3 illustrates that the upper surface 133 of the magnetic force unit 130 has a curved surface having a radius R1 in the longitudinal direction, and FIG. 4 illustrates the upper surface 133 of the magnetic force unit 130. It is shown to have a curved surface with a radius of R2 in the width direction. The curved surface radius in each direction may vary depending on the size of the magnetic force unit 130, and the curved surface may be formed in one or both of the longitudinal direction and the width direction.

When the upper surface 133 of the magnetic force unit 130 is convex, the center of the force acting on the electromagnet 100 is collected at the center of the upper surface 133 of the magnetic force unit 130. As a result, the guiding force of the electromagnet 100 is increased, so that the control of the magnetically levitated conveying body is easy.

5 is a view showing that the electromagnet of the magnetic levitation conveying apparatus according to an embodiment of the present invention is mounted on the magnetic levitation conveying body.

As shown in FIG. 5, the electromagnet 100 according to the embodiment of the present invention may surround the coil with the case 121. When the coil is surrounded by the case 121, the appearance is neat, and it is possible to prevent the coil from being damaged while the magnetic levitation conveyer 200 is in operation.

The electromagnet 100 is mounted on the lower inner surface of the conveying body 200. In this case, the upper surface 133 of the magnetic part 130 of the electromagnet 100 is mounted to face upward. The electromagnet 100 may be fixedly mounted to the fixing frame 150 and coupled to the magnetic levitation carrier 200. In order to fix the electromagnet 100 to the fixing frame 150, a screw hole may be drilled in the electromagnet 100 and the fixing frame 150, and the screw 151 may be fastened.

The electromagnet 100 may have a rotating unit 160. The rotating unit 160 may be attached to the lower portion of the electromagnet 100. In this embodiment, the rotating unit 160 is a bearing, but is not limited thereto, and may be various devices capable of rotating the electromagnet 100 according to the movement of the magnetically levitated conveying body 200. In the present embodiment, the rotating unit 160 is positioned below the fixing frame 150 and is coupled to the fixing frame 150 and the magnetic levitating carrier 200 through the bolt 161 and the nut 162.

As such, when the electromagnet 100 is mounted to the magnetic levitation carrier 200 through the rotating unit 160, the fixing frame 150 rotates according to the movement of the magnetic levitation carrier 200, and the fixing frame 150 rotates. As a result, the entire electromagnet 100 is rotated. Therefore, when the conveying member 200 passes the curved portion of the rail portion, the electromagnet 100 rotates along the curve of the rail portion. Therefore, even in a curved portion of the rail, the suction force and the guide force between the electromagnet 100 and the rail portion do not change.

6 is a view conceptually showing a magnetic levitation transfer device equipped with an electromagnet according to an embodiment of the present invention.

As shown in FIG. 6, the magnetic levitation conveying apparatus 1000 according to the present exemplary embodiment includes a train unit 1100 and a rail unit 1200. The train unit 1100 floats and moves a predetermined distance from the rail unit 1200.

The train unit 1100 includes an electromagnet 1110 on the lower inner surface. In the present embodiment, the electromagnet 1110 is located on both sides of the lower inner surface of the train unit 1100, but the number of the electromagnet 1110 may vary depending on the size of the train unit 1100. The electromagnet 1110 is mounted to face the suction part 1221 of the rail part 1200 to face each other.

The rail part 1200 includes a support part 1210, a rail plate 1220, and a fixing part 1230. The support 1210 is erected perpendicular to the ground. The width of the support part 1210 depends on the size and weight of the train part 1110 moving along the rail part 1200. The rail plate 1220 is vertically coupled to both sides of the support 1210 at the top of the support 1210. That is, the rail plate 1220 is horizontal to the ground. In another embodiment, the support 1210 and the rail plate 1220 may be integrally formed. The fixing part 1230 may be coupled to the lower portion of the support part 1210. The fixing part 1230 is vertically coupled to both sides of the support part 1210 and in contact with the ground. The fixing part 1230 allows the rail part 1200 to be firmly fixed to the ground. In the present embodiment, the length of the fixing part 1230 is longer than the width of the train part 1100, so that it withstands vibration caused by the propulsion of the train part 1100 well and the train part when the rail part 1200 is curved. The rail unit 1200 does not move even when the movement of the 1100 is performed. The support part 1210 and the fixing part 1230 may also be integrally formed. In another embodiment, the support 1110, the rail plate 1220, and the fixing part 1230 may be integrally formed.

In the present embodiment, the electromagnet 1110 is used for the suction type magnetic levitation transfer device 1000. Accordingly, the suction part 1221 protrudes from the lower ends of both ends of the rail plate 1220. The suction part 1221 may be formed of a material (for example, a metal such as steel) that can be easily attached to the electromagnet 1110, and does not need to be formed of a separate permanent magnet or electromagnet. This is to reduce the cost, considering that the suction portion 1221 should be formed continuously along the rail portion 1200, if the suction portion 1221 is formed of a permanent magnet or an electromagnet will be expensive. In this embodiment, the suction part 1221 has a shape where the edge protrudes toward the electromagnet 1110 and the center is concave. That is, the suction part 1221 becomes a shape similar to '∩' . Accordingly, the electromagnet 1110 is provided such that the magnetic force portion faces the edge of the suction portion 1221 and the base portion faces the center of the suction portion 1221. This shape increases guidance and enhances steering.

In order for the train unit 1100 to float and propel, an electric current flows through the electromagnet 1110 so that the electromagnet 1110 becomes magnetic. When the electromagnet 1110 is a magnetic strip, an attractive force acts between the electromagnet 1110 and the suction part 1221, and thus the electromagnet 1110 rises toward the suction part 1221. When the electromagnet 1110 is injured, the train unit 1100 is injured, and the injured train unit 1100 is propelled by a propulsion means such as a linear motor.

When the electromagnet 1110 rises, the gap sensor 1120 keeps the gap between the electromagnet 1110 and the suction part 1221 constant. To this end, the gap sensor 1120 recognizes between the electromagnet 1110 and the suction unit 1221 100 to 10000 times per second, and adjusts the interval by adjusting the amount of current flowing through the electromagnet 1110. In general, a plurality of gap sensors 1120 are installed in close proximity to each other in consideration of a seam portion of the rail unit 1200.

In this embodiment, the train unit 1100 is supplied with power in a non-contact manner. For this purpose, the high frequency feed line 1240 is installed along the top surface of the support part 1210 in the rail part 1200. The high frequency feed line 1240 may be a litz cable. Litz cable is a wire in which a thin enameled wire or a polyurethane wire of about 0.1 mm in diameter is coated with a special insulator or wrapped with silk thread. Litz cable is intended to physically increase the surface area, and electrically improves the frequency characteristics by reducing the skin effect.

The train unit 1100 includes a pickup coil 1130 at the center of the bottom surface. The pickup coil 1130 may have a shape having both side surfaces and an upper surface. That is, the pickup coil 1130 has a shape similar to '∩' . The pickup coil 1130 is installed such that the high frequency feed line 1240 is positioned in a space formed by both side surfaces and the upper surface of the pickup coil 1130. The upper surface of the pickup coil 1130 should be spaced apart from the high frequency feed line 1240 even when the train unit 1100 is not injured, and both sides of the pickup coil 1130 may be injured even when the train unit 1100 is injured. It should be long enough to surround the high frequency feed line 1240. Therefore, the pick-up coil 1130 may receive power from the high frequency feed line 1240 without contact, regardless of whether the train unit 1100 is injured.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to easily explain the technical contents and help the understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

100: electromagnet 110: base
120: coil 130: magnetic portion
133: upper surface 140: magnetic flux blocking groove
150: fixing frame 160: rotating part
1000: Maglev transfer device 1100: Train section
1110: electromagnet 1120: gap sensor
1130: pickup coil 1200: rail portion
1210: support portion 1220: rail plate
1230 fixed part 1240 high frequency feed line

Claims (4)

Base; And
And a magnetic force coupled vertically to both sides of the base and acting on a rail and an attractive force.
The magnetic flux blocking groove is formed on the upper surface of the magnetic force portion,
The magnetic flux blocking groove is electromagnet of the magnetic levitation transfer device, characterized in that formed in the width direction of the magnetic force portion. The method of claim 1,
Electromagnet of the magnetic levitation transfer device, characterized in that the upper surface of the magnetic force portion is convex. delete The method according to claim 1 or 2,
Electromagnet of the magnetic levitation conveying apparatus, characterized in that it further comprises a rotating portion for rotating the base portion in accordance with the movement of the magnetic levitation conveying body.
KR1020100023132A 2010-03-16 2010-03-16 Electromagnet for magnetic levitation vehicle KR100959041B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100023132A KR100959041B1 (en) 2010-03-16 2010-03-16 Electromagnet for magnetic levitation vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100023132A KR100959041B1 (en) 2010-03-16 2010-03-16 Electromagnet for magnetic levitation vehicle

Publications (1)

Publication Number Publication Date
KR100959041B1 true KR100959041B1 (en) 2010-05-20

Family

ID=42281923

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100023132A KR100959041B1 (en) 2010-03-16 2010-03-16 Electromagnet for magnetic levitation vehicle

Country Status (1)

Country Link
KR (1) KR100959041B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117609A (en) * 1987-10-30 1989-05-10 Toshiba Corp Carrying mechanism in non-contact system
KR20050091126A (en) * 2004-03-10 2005-09-15 한국전기연구원 Magnetically levitated transportation system with increased guidance force
KR20060042772A (en) * 2004-11-10 2006-05-15 한국전기연구원 Levitation system using longitudinal flux to increase guidance force

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117609A (en) * 1987-10-30 1989-05-10 Toshiba Corp Carrying mechanism in non-contact system
KR20050091126A (en) * 2004-03-10 2005-09-15 한국전기연구원 Magnetically levitated transportation system with increased guidance force
KR20060042772A (en) * 2004-11-10 2006-05-15 한국전기연구원 Levitation system using longitudinal flux to increase guidance force

Similar Documents

Publication Publication Date Title
CN111373097B (en) Permanent magnetic suspension train adopting passive low-frequency electromagnetic stabilization
CA2437223A1 (en) Monorail system
KR101544383B1 (en) Magnetic levitation system having switch for guide elctromagnetic and stoping method thereof
KR20150068092A (en) Magnetic levitation system comprising propulsion electromagnet having guiding function
KR940005452A (en) Maglev Transfer Device
KR101009465B1 (en) Magnetic levitation system and magnetic levitation method using halbach array
KR101197257B1 (en) Magnetic levitation conveyance system having enhanced stop performance
US3931767A (en) Magnetic suspension railway
KR101764861B1 (en) Magnetic levitation train having active damper
KR100985159B1 (en) Apparatus for electromagnetic suspension levitation vehicle model
JP7083886B2 (en) Transport device and transport path
KR100959041B1 (en) Electromagnet for magnetic levitation vehicle
JP4838271B2 (en) Magnetic levitation mechanism
KR101698955B1 (en) Magnetic levitation system having location mark
KR101182354B1 (en) Magnetic levitation conveyance system having spring
KR20140087677A (en) Magnetic levitation system having slanted permanent magnet
KR101623475B1 (en) Magnetic levitation system having inclined permanent magnet
KR101685619B1 (en) Magnetic levitation system having eccentricity compensation electromagnet
KR100985162B1 (en) Apparatus for magnetic levitation vehicle
KR100857915B1 (en) Flatcar for magnetically lavitated vehicle
KR101031852B1 (en) Magnetically levitated transportation system with over hanging type structure
JPH0669246B2 (en) Levitating, guiding and propulsion combination device for induction repulsion type magnetic levitation railway
KR100864818B1 (en) Compensation device for gap disturbance in maglev system
KR101623474B1 (en) Magnetic levitation system having slanted electromagnet
KR101031853B1 (en) Magnetically levitated transportation system

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
N231 Notification of change of applicant
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130425

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140222

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20150224

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee