KR101784460B1

KR101784460B1 - Stack type linear synchronous motor

Info

Publication number: KR101784460B1
Application number: KR1020150155724A
Authority: KR
Inventors: 임재원; 하창완; 김창현; 한형석
Original assignee: 한국기계연구원
Priority date: 2015-11-06
Filing date: 2015-11-06
Publication date: 2017-10-11
Also published as: KR20170053344A

Abstract

The present invention provides a stacked linear synchronous motor capable of improving propulsion.
According to an aspect of the present invention, there is provided a stacked linear synchronous motor including: a stator including a plurality of electromagnet layers separated from each other; and a plurality of support frames inserted between the electromagnet layers and a plurality Wherein the permanent magnets are fixedly installed to penetrate the support frame and face the electromagnet layer disposed on the upper portion and the layer disposed on the lower portion.

Description

[0001] STACK TYPE LINEAR SYNCHRONOUS MOTOR [0002]

The present invention relates to a linear synchronous motor, and more particularly to a stacked linear synchronous motor.

Linear synchronous motors are generally efficient and have a greater propulsion power than linear induction motor systems. However, in the case of a linear synchronous motor, there is a problem that magnetic saturation occurs or a leakage magnetic field is generated, and efficiency is lowered.

Conventional linear motors have a slender rectangular parallelepiped-like structure. Accordingly, in order to generate a high driving force, the width of the linear motor must be increased or the length thereof must be increased. However, when the width or the length of the linear motor is increased as described above, a spatial limitation arises.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stacked linear synchronous motor capable of improving driving force and maximizing space utilization.

According to an aspect of the present invention, there is provided a stacked linear synchronous motor including: a stator including a plurality of electromagnet layers separated from each other; and a plurality of support frames inserted between the electromagnet layers and a plurality Wherein the permanent magnets are fixedly installed to penetrate the support frame and face the electromagnet layer disposed on the upper portion and the layer disposed on the lower portion.

Wherein the electromagnet layers comprise first electromagnets and second electromagnets staggered in the stacking direction of the electromagnet layers, and the first electromagnets and the second electromagnets are stacked.

The first electromagnets are arranged in parallel along the moving direction of the mover, and include a first coil surrounding the first core and the first core, and the second electromagnets are arranged in parallel along the moving direction of the mover And a second coil surrounding the second core and the second core.

The first core may include a first winding section around which the first coil is wound and a first protrusion protruding from the first winding section and inserted between the second coil.

The second core may include a second winding section around which the second coil is wound and a second protrusion protruding from the second winding section and inserted between the first coil and the second coil.

The first electromagnet and the second electromagnet may be formed to extend in the width direction of the support frame.

Further, the mover includes a pulling frame connecting the plurality of support frames, wherein the pulling frame includes a connector for connecting and fixing the lead members protruding in the moving direction of the mover from the support frame, And a connecting bar protruding in the moving direction of the mover.

The stacked linear synchronous motor further includes a housing which is formed by a tube having both ends opened in the longitudinal direction and encloses the stator and the mover, and a supporting rod supporting the stator may be installed on the inner wall of the housing.

The guide rail may be fixed to the housing, and the guide rail may include a fixed rail fixed to an inner wall of the housing, a sliding rail coupled to the fixed rail, and a sliding rail fixed to the mover.

1 is a perspective view illustrating a linear synchronous motor according to an embodiment of the present invention.
2 is a longitudinal sectional view showing a linear synchronous motor according to an embodiment of the present invention.
3 is a perspective view illustrating a stator and a mover of a linear synchronous motor according to an embodiment of the present invention.
4 is a perspective view showing a part of a stator of a linear synchronous motor and a mover together according to an embodiment of the present invention.
5 is a perspective view illustrating a mover of a linear synchronous motor according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a magnetic field between a stator and a mover according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

FIG. 1 is a perspective view illustrating a linear synchronous motor according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view illustrating a linear synchronous motor according to an embodiment of the present invention.

1 and 2, the linear synchronous motor 100 according to the present embodiment includes a stator 20 including a plurality of electromagnet layers 21, 22, and 23, and a plurality of permanent magnets 35 A housing 50 enclosing the stator 20 and the mover 30; a side support member 41 for supporting a side end of the stator 20; a guide rail 42 for supporting the mover 30; .

The housing 50 may be a rectangular tube having both ends opened in the longitudinal direction, and the side end supporting member 41 and the guide rail 42 are fixed to the housing 50. The side support members 41 are fixed to the inner wall of the housing 50 and support the stator 20 via a support rod 45. The housing 50 is provided with a plurality of side end supporting members 41 which are elongated in the moving direction of the mover 30 (y-axis direction). The side support members 41 are arranged in the laminating direction (z-axis direction) so as to support the electromagnet layers 21, 22, 23 arranged in a stacked manner. In the housing 50, a support plate 48 is fixedly installed at both longitudinal ends of the stator 20 to support the stator 20.

The guide rail 42 includes a fixed rail 42a fixed to the housing and a sliding rail 42b slidably coupled to the fixed rail 42a. The sliding rail 42b is fixed to the mover 30 and guides the movement of the mover 30. The guide rails 42 support both side ends of the mover 30 and are formed so as to extend in the moving direction of the mover 30.

FIG. 3 is a perspective view showing a stator and a mover of a linear synchronous motor according to an embodiment of the present invention, FIG. 4 is a perspective view showing a part of a stator and a mover of the linear synchronous motor according to an embodiment of the present invention, 5 is a perspective view illustrating a mover of a linear synchronous motor according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view illustrating a magnetic field between a stator and a mover according to an embodiment of the present invention.

3 to 6, the stator 20 includes a plurality of electromagnet layers 21, 22, and 23, and the electromagnet layers 21, 22, and 23 include electromagnet layers 21 and 22 The first and second electromagnets 60 and 70 are staggered in the stacking direction of the first and second electromagnets 60 and 60, respectively. The first electromagnets 60 and the second electromagnets 70 are stacked, and the first electromagnets 60 are disposed on top of the second electromagnets 70.

The first electromagnets 60 are arranged in the same plane and arranged side by side along the moving direction of the mover 30. The first electromagnets 60 are arranged in the same plane and arranged side by side along the moving direction of the mover 30.

The first electromagnets 60 include a first core 61 and a first coil 62 surrounding the first core 61. The second electromagnets 70 include a second core 71 and a second And a second coil 72 surrounding the core 71. Three-phase currents are applied to the first coil 62 and the second coil 72, respectively.

The first electromagnet 60 is formed to extend in the width direction of the housing 50. The first core 61 is fixed to the side end supporting member 41 via the support rod 45. [ The second electromagnet 70 is formed so as to extend in the width direction (x-axis direction) of the housing 50. The second core 71 is fixed to the side end supporting member 41 via the supporting rod 45 .

The first core 61 includes a first winding portion 61a wound with the first coil 62 and a first protrusion 61b protruding from the first winding portion 61a and inserted between the second coil 72, . The second core 71 has a second winding portion 71a around which the second coil 72 is wound and a second protrusion portion 71b protruding from the second winding portion 71a and inserted between the first coil 62 71b.

The first protrusions 61b protrude downward and the second protrusions 71b protrude upward while the first electromagnets 60 and the second electromagnets 70 are staggered, Is inserted between the second electromagnets 70 and the second core 71 is inserted between the first electromagnets 60.

6, when the first electromagnet 60 and the second electromagnet 70 are staggered and the cores are inserted into each other, the first electromagnets 60 and the second electromagnets 60 are disposed on the permanent magnets 35 disposed on the upper portion, Since the first and second electromagnets 70 and 70 have magnetic forces and the first and second electromagnets 60 and 70 have magnetic forces even to the permanent magnets 35 disposed at the lower portion, 100) is improved as well as the waste of magnetic force is reduced and the efficiency is improved. And more electromagnets can be placed in a limited space.

4 and 5, the mover 30 includes a plurality of support frames 34 inserted between the electromagnet layers 21, 22 and 23 and a plurality of support frames 34 fixed to the support frames 34. [ Permanent magnets 35, as shown in FIG. The support frame 34 is in the form of a rectangular frame and the permanent magnets 35 are fixed to the support frame 34 so as to penetrate the support frame 34. The plurality of support frames 34 are arranged in parallel with each other and the permanent magnets 35 face the electromagnet layers 21, 22 and 23 disposed at the upper portion and the electromagnet layers 21, 22 and 23 disposed at the lower portion Respectively.

The mover 30 further includes a traction frame 32 connected to a plurality of support frames 34 wherein the traction frame 32 is secured to the support frame 34 to support the support frames 34. The traction frame 32 includes a connector 32b for connecting and fixing the lead members 32a and the lead member 32a projecting in the moving direction of the mover from the support frame 34 and a connector 32b for connecting the lead 32a to the connector 32b in the moving direction of the mover And includes a protruding connection bar 32c.

The lead member 32a has a rectangular bar shape and protrudes from the center of the support frame 34 in the width direction. The connector 32b is disposed perpendicular to the lead member 32a and connects the lead members 32a. The connecting bar 32c is fixed to the connector 32b and connects the mover 30 with the object to be conveyed. Here, the object to be transported may be a bogie, and objects other than bogie may be directly connected to the connection bar.

The support frame 34 is fixed to the sliding rail 42b and moves along the sliding rail 42b. When the three-phase current is applied to the first electromagnets 60 and the second electromagnets 70, the first electromagnets 60 and the second electromagnets 70 apply magnetic force to the permanent magnets 35, (30) can move with respect to the stator (20).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

100: Linear synchronous motor 20: Stator
21, 22, 23: electromagnet layer 48: support plate
30: mover 32: tow frame
32a: lead member 32b: connector
32c: connecting bar 34: supporting frame
35: permanent magnet 41: side end supporting member
42: guide rail 42a: fixed rail
42b: sliding rail 45: support rod
50: housing 60: first electromagnet
61: first core 61a: first winding part
61b: first protrusion 62: first coil
70: second electromagnet 71: second core
71a: second winding part 71b: second projection
72: second coil

Claims

A stator comprising a plurality of electromagnet layers spaced apart from each other;
A mover comprising a plurality of support frames inserted between the electromagnet layers and a plurality of permanent magnets fixed to the support frames;
Lt; / RTI >
Wherein the permanent magnets are fixedly installed to penetrate the support frame and face an electromagnet layer disposed on the upper portion and a layer disposed on the lower portion,
The electromagnet layer
And first electromagnets and second electromagnets staggered in a stacking direction of the electromagnet layers,
Wherein the first electromagnets and the second electromagnets are stacked,
A first protrusion protruding from the first winding section in the first core of the first electromagnet is inserted between the second coils of the second electromagnet,
A second protrusion protruding from the second winding section in the second core of the second electromagnet is inserted between the first coils of the first electromagnet,
Wherein the first coil and the second coil are partially stacked.

delete

The method according to claim 1,
The first electromagnets
And are arranged side by side along the moving direction of the mover,
The first coil
A first core and a second core surrounding the first core,
The second electromagnets
And are arranged side by side along the moving direction of the mover,
The second coil
And surrounds the second core and the second core.

The method of claim 3,
And the first coil is wound around the first winding portion of the first core.

5. The method of claim 4,
And the second coil is wound on the second winding section of the second core.

The method of claim 3,
Wherein the first electromagnet and the second electromagnet are formed to extend in the width direction of the support frame.

The method of claim 3,
Wherein the movable frame includes a pull frame for connecting the plurality of support frames, the pull frame including a connector for connecting and fixing the lead members protruding from the support frame in the moving direction of the mover, And a connecting bar protruding in the moving direction.

The method according to claim 1,
Wherein the stacked linear synchronous motor further comprises a housing which is formed by a tube whose both ends are opened in the longitudinal direction and which surrounds the stator and the mover, and a supporting rod supporting the stator is provided on the inner wall of the housing.

9. The method of claim 8,
Wherein the guide rail is fixed to the housing, and the guide rail includes a fixed rail fixed to an inner wall of the housing, and a sliding rail slidably coupled to the fixed rail and fixed to the mover.