KR102582767B1 - Magnetic field generator for reducing stress of sheet and system thereof - Google Patents

Abstract

An invention regarding a magnetic field generating device and magnetic field generating system for reducing sheet tension is disclosed. The magnetic field generating device for reducing sheet tension according to the present invention includes a first moving plate having a plurality of first magnet modules, a plurality of second magnet modules, and the first moving plate so that the sheet portion is moved and self-oriented. a second moving plate disposed opposite to the first moving plate and the second moving plate, helically coupled to the first moving plate and the second moving plate, and adjusting the magnetic force by adjusting the distance between the first moving plate and the second moving plate in the direction of rotation. Accordingly, it includes a rotating shaft that moves the first moving plate and the second moving plate in opposite directions, and a driving part coupled to the rotating shaft to provide rotational power to the rotating shaft, wherein the first moving plate includes the first Halbach The plurality of first magnet modules of the Halbach array are arranged at first intervals along the moving direction of the seat portion, and the second moving plate has the plurality of second magnet modules of the second Halbach array. It may be arranged at first intervals along the direction of movement of the sheet portion.

Description

Magnetic field generator and magnetic field generation system for reducing sheet tension {MAGNETIC FIELD GENERATOR FOR REDUCING STRESS OF SHEET AND SYSTEM THEREOF}

The present invention relates to a magnetic field generating device and a magnetic field generating system for reducing sheet tension, and more specifically, to a magnetic field generating device and a magnetic field generating system for reducing sheet tension that can variously and precisely control the intensity of magnetic force.

Recently, with the development and distribution of mobile tools and electric motors, high-capacity energy sources are required, and a representative example is lithium secondary batteries. Currently, carbon materials such as graphite and hard carbon are used as negative electrode active materials (negative electrode materials) for lithium secondary batteries.

In the case of graphite, the theoretical capacity defined by the first stage structure C6Li formed through an intercalation reaction is 372 mAh/g, and although the capacity of the battery has been increased by increasing its utilization rate, it is already reaching its limit. . In addition, in the case of hard carbon, it is possible to obtain a capacity higher than the theoretical capacity of graphite, but it is difficult to realize a high capacity secondary battery due to reasons such as lower initial efficiency and lower electrode density compared to graphite. For this reason, it has been proposed to use silicon, which exhibits a high theoretical capacity of 4200 mAh/g by alloying with lithium, as a new material to replace carbon-based materials as a negative electrode active material.

After the anode material is coated on the film, the anode material is aligned using magnetic force in a magnetic orientation device. As the self-orientation of the negative electrode material is formed uniformly, the charging speed of the secondary battery becomes significantly faster.

In addition, the magnetic orientation method of the anode material can be oriented at various strengths of magnetic force depending on the secondary battery applied to the vehicle type. In addition, the self-orientation speed of the anode material varies depending on the time exposed to magnetic force, the transport speed of the anode material film, and the viscosity of the anode material material. Therefore, there is a need for a magnetic field generator that can adjust the self-orientation time and the intensity of magnetic force depending on the type of secondary battery.

The background technology of the present invention is disclosed in Japanese Patent Application Publication No. 2011-054230 (published on March 17, 2011, title of the invention: magnetic field alignment device and magnetic recording medium manufacturing method).

The present invention was created to improve the above problems, and the purpose of the present invention is to provide a magnetic field generating device and a magnetic field generating system for reducing sheet tension that allow various and precise control of the strength of magnetic force.

The magnetic field generating device for reducing sheet tension according to the present invention includes a first moving plate provided with a plurality of first magnet modules, a plurality of second magnet modules, and the first moving plate so that the seat portion is moved and self-oriented. a second moving plate disposed opposite to the first moving plate and the second moving plate, helically coupled to the first moving plate and the second moving plate, and adjusting the magnetic force by adjusting the distance between the first moving plate and the second moving plate in the direction of rotation. Accordingly, it includes a rotating shaft that moves the first moving plate and the second moving plate in opposite directions, and a driving part coupled to the rotating shaft to provide rotational power to the rotating shaft, wherein the first moving plate includes the first Halbach The plurality of first magnet modules of the Halbach array are arranged at first intervals along the moving direction of the seat portion, and the second moving plate has the plurality of second magnet modules of the second Halbach array. It may be arranged at first intervals along the direction of movement of the sheet portion.

In the present invention, the plurality of first magnet modules are arranged in the order in which they are arranged along the moving direction of the seat portion and are shifted at a second interval in a direction perpendicular to the moving direction of the seat portion, and the plurality of second magnet modules are, It may be arranged in the order arranged along the moving direction of the seat portion and shifted at a second interval in a direction perpendicular to the moving direction of the seat portion.

In the present invention, the first magnet module includes a first magnet of the first pole and a second magnet of the second pole sequentially arranged alternately in a direction perpendicular to the direction of movement of the sheet portion at a third interval, and the second magnet In the magnet module, the second magnet of the second pole and the first magnet of the first pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval, and the first magnet module and the second magnet are sequentially arranged at a third interval. The magnet module may be arranged so that different polarities face each other in the direction of movement.

The present invention is fixedly coupled to the first movable plate or the second movable plate, is provided between the first movable plate and the second movable plate, and applies a repulsive force to the first movable plate and the second movable plate. It may further include a repulsive force approving unit.

The present invention is provided on the outside of the first movable plate, a first fixed plate to which the rotation axis is rotatably coupled, provided on the outside of the second movable plate, and arranged to be spaced apart from the first fixed plate, It further includes a second fixed plate to which a rotating shaft is rotatably coupled, and a fixed shaft fixed between the first fixed plate and the second fixed plate and to which the first moving plate and the second moving plate are movably coupled. can do.

The present invention provides a first spiral portion on the outer surface of the rotating shaft with a thread formed up to one end based on the central portion of the rotating shaft, and a second spiral portion formed with a screw thread rotating in a direction opposite to the rotation direction of the first spiral portion up to the other end. It may include a spiral portion.

In the present invention, when the first moving plate and the second moving plate are close to each other, a magnetic field is applied between the first moving plate and the second moving plate to cause an attractive force between the first moving plate and the second moving plate. Wealth can be formed.

The magnetic field generating system for reducing sheet tension according to the present invention includes a plurality of magnetic field generating devices that apply magnetic force so that the cathode material coated on the sheet portion is oriented in the same direction, and the magnetic field generating devices include: 1 A first moving plate equipped with a first magnet module of a Halbach array, a second magnet module of a second Halbach array, and the sheet portion is moved and faces the first moving plate so as to be magnetically oriented. a second moving plate disposed so as to be helically coupled to the first moving plate and the second moving plate, and adjusting the magnetic force by adjusting the gap between the first moving plate and the second moving plate according to the direction of rotation. It includes a rotating shaft that moves the first moving plate and the second moving plate in opposite directions, and a driving part coupled to the rotating shaft to provide rotating power to the rotating shaft.

In the present invention, the plurality of magnetic field generating devices may be arranged at a second interval shifted in the vertical direction of the moving direction of the sheet portion in the order in which they are arranged along the moving direction of the sheet portion.

In the present invention, the first magnet module includes a first magnet of the first pole and a second magnet of the second pole sequentially arranged alternately in a direction perpendicular to the direction of movement of the sheet portion at a third interval, and the second magnet In the magnet module, the second magnet of the second pole and the first magnet of the first pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval, and the first magnet module and the second magnet are sequentially arranged at a third interval. The magnet module may be arranged so that different polarities face each other in the direction of movement.

The present invention is fixedly coupled to the first movable plate or the second movable plate, is provided between the first movable plate and the second movable plate, and applies a repulsive force to the first movable plate and the second movable plate. It may further include a repulsive force approving unit.

The present invention is provided on the outside of the first movable plate, a first fixed plate to which the rotation axis is rotatably coupled, provided on the outside of the second movable plate, and arranged to be spaced apart from the first fixed plate, It further includes a second fixed plate to which a rotating shaft is rotatably coupled, and a fixed shaft fixed between the first fixed plate and the second fixed plate and to which the first moving plate and the second moving plate are movably coupled. can do.

According to the present invention, by configuring the first moving plate and the second moving plate with magnet modules in a Halbach arrangement, an overall uniform magnetic force can be formed and the strength of the magnetic force can be sufficiently secured.

Additionally, according to the present invention, since the distance between the first and second moving plates is adjusted, the strength of the magnetic force between the first and second moving plates can be accurately and quickly adjusted.

Additionally, according to the present invention, since the strength of the magnetic force is accurately controlled between the first moving plate and the second moving plate, the transfer speed of the sheet portion can be adjusted so that the magnetic orientation of the negative electrode material is sufficiently formed.

Figure 1 is a perspective view schematically showing a magnetic field generator for reducing sheet tension according to an embodiment of the present invention.
Figure 2 is a front view showing a magnetic field generating device for reducing sheet tension according to an embodiment of the present invention.
Figure 3 is an exploded perspective view schematically showing a magnetic field generator for reducing sheet tension according to an embodiment of the present invention.
Figure 4 is a diagram for explaining the first moving plate and the second moving plate of the magnetic field generating device according to an embodiment of the present invention.
Figure 5 is a diagram for explaining the arrangement of the first magnet module and the second magnet module according to an embodiment of the present invention.
Figure 6 is a diagram for explaining the Halbach arrangement of the first magnet module and the second magnet module according to an embodiment of the present invention.
Figure 7 is a diagram for explaining the formation of a uniform magnetic space according to an embodiment of the present invention.
Figure 8 is a cross-sectional view showing a first embodiment of a repulsive force application part in a magnetic field generating device according to an embodiment of the present invention.
Figure 9 is a cross-sectional view showing a second embodiment of the repulsive force application part in the magnetic field generating device according to an embodiment of the present invention.
Figure 10 is a cross-sectional view and an enlarged view showing an operating state in which attractive force is applied between magnets in the magnetic field generating device according to an embodiment of the present invention.
Figure 11 is a cross-sectional view and an enlarged view showing an operating state in which a repulsive force is applied between magnets in the magnetic field generating device according to an embodiment of the present invention.
Figure 12 is a diagram for explaining a magnetic field generation system for reducing sheet tension according to another embodiment of the present invention.
FIG. 13 is a diagram for explaining the arrangement of the magnetic field generator shown in FIG. 12.
14 is a perspective view schematically showing the magnetic field generator shown in FIG. 12.

Hereinafter, an embodiment of a magnetic field generating device and a magnetic field generating system for reducing sheet tension according to the present invention will be described with reference to the attached drawings. In the process of explaining the cathode material magnetic field generator, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a perspective view schematically showing a magnetic field generating device for reducing sheet tension according to an embodiment of the present invention, Figure 2 is a front view showing a magnetic field generating device for reducing sheet tension according to an embodiment of the present invention, Figure 3 is an exploded perspective view schematically showing a magnetic field generator for reducing sheet tension according to an embodiment of the present invention, and Figure 4 is a first moving plate and a second movement of the magnetic field generator according to an embodiment of the present invention. A diagram for explaining the plate, Figure 5 is a diagram for explaining the arrangement of the first magnet module and the second magnet module according to an embodiment of the present invention, and Figure 6 is a diagram for explaining the first magnet module according to an embodiment of the present invention. and a diagram for explaining the Halbach arrangement of the second magnet module. FIG. 7 is a diagram for explaining the formation of a uniform magnetic space according to an embodiment of the present invention.

1 to 3, the magnetic field generator 10 for reducing sheet tension according to an embodiment of the present invention includes a first moving plate 100, a second moving plate 200, a rotating shaft 300, It includes a repulsive force application unit 400, a first fixing plate 500, a second fixing plate 600, a fixing shaft 700, and a driving unit 800, and the magnetic field generator 10 includes a cathode material applied to the cathode material film. It may be a device that applies magnetic force to the sheet portion 50 so that the negative electrode material in the coated sheet portion 50 is oriented in the same direction.

The first moving plate 100 is provided horizontally in a flat plate shape, and has a plurality of first magnet modules 110a, 110b, 110c,..., 110n, hereinafter referred to as '110' on the upper surface, as shown in FIG. ) may be provided. The plurality of first magnet modules 110 may be horizontally coupled to the first moving plate 100 in a flat plate shape. As shown in FIG. 5, the plurality of first magnet modules 110 are arranged at first intervals along the moving direction of the seat portion 50, and move in the order in which they are arranged along the moving direction of the seat portion 50. It may be arranged at a second interval shifted in the vertical direction. The first magnet module 110 may have a straight shape with a first Halbach array. The first Halbach array is an arrangement of the first magnet module 110, and the magnetic force flux of the first magnet module 110 is increased through the Halbach array, enabling high efficiency.

The first magnet module 110 includes a plurality of magnets, and the first magnet of the first pole and the second magnet of the second pole are sequentially spaced at a third interval in the vertical direction of the moving direction of the seat portion 50. They can be arranged alternately. Hereinafter, for convenience of explanation, the first pole will be referred to as the N pole and the second pole will be referred to as the S pole. For example, as shown in FIG. 6, the first magnet module 110 has a first Halbach array of N-pole magnets, bridges, S-pole magnets, and bridges alternating in the horizontal direction of the moving direction of the seat portion 50. It can be arranged as follows. Here, the bridge may mean a space where magnetic force lines do not emerge from the surface of the magnet.

Since the first magnet module 110 has a Halbach arrangement, compared to the existing arrangement (the first moving plate 100 is the N pole and the second moving plate 200 is the S pole), the magnetic flux density in the normal direction is 1.4 times. As it becomes larger, a larger eddy current can be generated. When an eddy current occurs, Lorentz force, or magnetic force, is generated. A drag-force is also generated by the Lorentz force, and the drag-force refers to a force that acts in the opposite direction to the direction of propulsion of the first magnet module 110.

The second moving plate 200 is disposed opposite to the first moving plate 100 so that it is self-oriented as the sheet portion 50 passes through it. The second moving plate 200, like the first moving plate 100, has a flat plate shape and is provided horizontally on the upper side of the second moving plate 200. The first moving plate 100 and the second moving plate 200 are arranged in parallel to face each other. For example, the first moving plate 100 and the second moving plate 200 may be arranged horizontally or vertically. When the first moving plate 100 and the second moving plate 200 are arranged horizontally, the seat portion 50 passes between the first moving plate 100 and the second moving plate 200 in a horizontal state. can do. When the first movable plate 100 and the second movable plate 200 are arranged vertically, the seat portion 50 is vertical and the first movable plate 100 and the second movable plate 200 move between them. You can pass.

As shown in FIG. 4, a plurality of second magnet modules (210a, 210b, 210c,..., 210n, hereinafter referred to as '210') may be provided on the lower surface of the second moving plate 200. The plurality of second magnet modules 122 may be horizontally coupled to the second moving plate 200 in a flat plate shape. As shown in FIG. 5, the plurality of second magnet modules 210 are arranged at first intervals along the moving direction of the seat portion 50, and are arranged in the order in which they are arranged along the moving direction of the seat portion 50. It may be arranged at a second interval shifted in the direction perpendicular to the moving direction of (50). The second magnet module 210 may have a straight shape with a second Halbach array. The second Halbach array is in the form of an array of second magnet modules 210, and the magnetic force flux of the second magnet module 210 is increased through the second Halbach array, enabling high efficiency.

The second magnet module 210 includes a plurality of magnets, and the second magnet of the second pole and the first magnet of the first pole are sequentially spaced at a third interval in the vertical direction of the moving direction of the seat portion 50. They can be arranged alternately. For example, as shown in FIG. 6, the second magnet module 210 may have a second Halbach array of S-pole magnets, bridges, N-pole magnets, and bridges alternately arranged in the horizontal direction of the moving direction. Here, the bridge may mean a space where magnetic force lines do not emerge from the surface of the magnet.

Since the second magnet module 210 has a second Halbach arrangement, compared to the existing arrangement (the first moving plate 100 is the N pole and the second moving plate 200 is the S pole), the magnetic flux density in the normal direction is Since it becomes more than 1.4 times larger, a larger eddy current can be generated. When an eddy current occurs, Lorentz force, or magnetic force, is generated. A drag-force is also generated by the Lorentz force, and the drag-force refers to a force that acts in the opposite direction to the direction of propulsion of the second magnet module 210.

By configuring the first magnet module 110 and the second magnet module 210 in a Halbach arrangement, a magnetic field is formed in the internal space of the first magnet module 110 and the second magnet module 210. When the sheet portion 50 moves into the internal space where a magnetic field is formed, a large tension is applied to the sheet portion 50. Then, it is impossible to produce the sheet portion 50 due to large tension.

Accordingly, the first moving plate 100 may be provided with a plurality of first magnet modules 110, and the second moving plate 200 may be provided with a plurality of second magnet modules 210. There is a change in magnetic force at the inlet and outlet of the first magnet module 110 and the second magnet module 210, and there is no change in magnetic force inside the first magnet module 110 and the second magnet module 210, so the seat part There is almost no tension in (50).

If a plurality of first magnet modules 110 and second magnet modules 210 are arranged, the magnetic flux applied to the sheet portion 50 passing through a plurality of magnetic spaces may not be uniform. Accordingly, the first magnet module 110 and the second magnet module 210 are arranged at a certain interval (second interval) in the vertical direction of the moving direction of the seat portion 50 in the order in which they are arranged along the moving direction of the seat portion 50. It can be placed by shifting. For example, as shown in (a) of Figure 7, the first magnet module 2 (110b) is placed lower than the first magnet module 1 (110a), and the first magnet module 3 (110c) is placed lower than the first magnet module 1 (110a). It can be placed lower than module 2 (110b). In this way, if the first magnet module 110 and the second magnet module 210 are shifted at a certain interval (second interval) and arranged uniformly in space, a low magnetic flux region is finally created in the first magnet module 1 (110a). It can be made higher in the first magnet module 2 (110b). By adding up these magnetic fluxes, the magnetic flux can be made uniform as shown in Figure 7(b).

The first magnet module 110 is disposed on the upper surface of the first moving plate 100, and the second magnet module 210 is disposed on the lower surface of the second moving plate 200. The first magnet module 110 and the second magnet module 210 are formed in the shape of a square plate. Since the first magnet module 110 and the second magnet module 210 are applied to the magnetic field generating device 10, there is no need to use additional energy to generate magnetic force in the sheet portion 50.

The first moving plate 100 and the second moving plate 200 are provided with magnet modules in a Halbach arrangement, thereby forming an overall uniform magnetic force and ensuring sufficient strength of the magnetic force.

The rotation axis 300 is perpendicular to the first moving plate 100 and the second moving plate 200, and sequentially passes through the first moving plate 100 and the second moving plate 200 to form the first moving plate ( 100) and is spirally coupled to the second moving plate 200. The first movable plate 100 and the second movable plate 200 are simultaneously moved in opposite directions according to the axis rotation direction of the rotation shaft 300.

The rotation shaft 300 includes a first spiral portion 310 and a second spiral portion 320.

The first spiral portion 310 is provided on the outer surface of the rotating shaft 300, and a thread is formed from the central portion of the rotating shaft 300 to one end.

To elaborate, the first spiral portion 310 is formed with a screw thread that rotates in one direction from the central portion of the rotating shaft 300 to the lower end of the rotating shaft 300. Accordingly, the first moving plate 100, which is helically coupled to the first helical portion 310, moves up and down along the first helical portion 310 according to the forward/reverse rotation direction of the rotation shaft 300.

The second spiral portion 320 is provided on the outer surface of the rotating shaft 300, and a thread is formed from the central portion of the rotating shaft 300 to the other end.

To elaborate, the second spiral portion 320 is formed with a screw thread that rotates in a direction opposite to the rotation direction of the first spiral portion 310 from the center of the rotation shaft 300 to the upper end of the rotation shaft 300. Accordingly, the second moving plate 200, which is helically coupled to the second helical portion 320, moves up and down along the second helical portion 320 according to the forward/reverse rotation direction of the rotation shaft 300.

The rotation axis 300 is rotated in one direction to raise the first moving plate 100, and at the same time, the second moving plate 200 is lowered so that the first moving plate 100 and the second moving plate 200 When they approach each other, the first magnet module 110 and the second magnet module 210 provided on the first moving plate 100 and the second moving plate 200, respectively, also come close to each other while facing each other.

Between the first magnet module 110 and the second magnet module 210 facing each other and approaching each other, that is, between the first moving plate 100 and the second moving plate 200, the first moving plate 100 and the second moving plate 100 An attractive force between the moving plates 200 acts to form a magnetic field application unit 900 in which a magnetic field is generated.

As the sheet part 50 passes through the magnetic field application part 900, where a magnetic field is generated by the force of attraction between the first magnet module 110 and the second magnet module 210, which are adjacent to each other, the material is arranged by the magnetic field, Sorted.

At this time, the rotation shaft 300 is rotated in the reverse direction so that the first moving plate 100 descends, and at the same time, the second moving plate 200 rises to separate the first moving plate 100 and the second moving plate 200. ) are separated from each other, the first magnet module 110 and the second magnet module 210 provided on the first moving plate 100 and the second moving plate 200, respectively, also move away from each other while facing each other. Since the attractive force no longer acts between the first magnet 110 and the second magnet 210, the magnetic field is released.

The repulsive force applicator 400 is applied to the first magnet module 110 when the rotation axis 300 is rotated in the reverse direction in order to separate the first moving plate 100 and the second moving plate 200 that are close to each other. ) and the second magnet module 210, so that a repulsive force is applied to the first moving plate 100 and the second moving plate 200, so that the first magnet module 110 and the second magnet module 210 ) serves to offset the attractive force between the

The repulsive force applicator 400 is fixedly coupled to the first movable plate 100 or the second movable plate 200 and is provided between the first movable plate 100 and the second movable plate 200.

The first fixed plate 500 is provided outside the first movable plate 100. The first fixed plate 500 has a flat plate shape and is located below the first movable plate 100 and is horizontally seated on the floor.

The rotating shaft 300 is perpendicular to the first fixed plate 500 and passes vertically downward through the upper surface of the first fixed plate 500, and the lower end of the rotating shaft 300 is rotatable about the first fixed plate 500. are combined.

The second fixed plate 600 is provided outside the second movable plate 200. The second fixing plate 600 is arranged to be vertically spaced apart from the first fixing plate 500. The second fixed plate 600 has a flat plate shape and is located on top of the second moving plate 200.

The rotation shaft 300 is perpendicular to the second fixing plate 600 and passes vertically upward through the lower surface of the second fixing plate 600, and the upper end of the rotation shaft 300 is rotatable about the second fixing plate 600. are combined.

The fixing shaft 700 is fixedly coupled between the first fixing plate 500 and the second fixing plate 600 and supports the second fixing plate 600 vertically. The lower end of the fixing shaft 700 is coupled to the upper surface of the first fixing plate 500, and the upper end of the fixing shaft 700 is fixedly coupled to the lower surface of the second fixing plate 600.

The fixed shaft 700 vertically passes through the first moving plate 100 and the second moving plate 200, and the first moving plate 100 and the second moving plate 200 move on the fixed shaft 700. Possibly combined. To elaborate, the fixed shaft 700 guides the sliding up and down movements of the first and second movable plates 100 and 200 that move up and down.

The driving unit 800 is provided on the outer surface of the second fixing plate 600 and is coupled to the rotating shaft 300 to provide rotational power to the rotating shaft 300. The driving unit 800 is seated on the upper surface of the second fixing plate 600 and is fixedly coupled to the second fixing plate 600. The driving unit 800 may be configured to include a motor and a reducer. The rotational force of the motor is transmitted to the reducer, and the rotational power of the motor is provided to the rotation shaft 300 connected to the reducer.

As the driving unit 800 provides rotational power to the rotating shaft 300, the gap between the first moving plate 100 and the second moving plate 200 is adjusted, so the first moving plate 100 and the second moving plate ( 200), the strength of the magnetic force can be adjusted accurately and quickly. In addition, the sheet portion 50 of various types of secondary batteries required according to the vehicle type can be manufactured. Additionally, since the strength of the magnetic force is accurately controlled between the first moving plate 100 and the second moving plate 200, the transfer speed of the sheet portion 50 can be adjusted so that the magnetic orientation of the anode material is sufficiently formed.

Figure 8 is a cross-sectional view showing a first embodiment of a repulsive force application part in a magnetic field generating device according to an embodiment of the present invention.

Referring to Figure 8, the repulsive force applicator 400 according to the first embodiment of the present invention will be composed of a housing portion 410, an elastic member 420, a fixed block 430, and a moving block 440. You can.

The housing portion 410 is hollow and has openings formed at both ends. The housing portion 410 is installed vertically between the first movable plate 100 and the second movable plate 200, orthogonal to the first movable plate 100 and the second movable plate 200.

The elastic member 420 is accommodated inside the housing portion 410 and is installed in the longitudinal direction of the housing portion 410. At this time, the elastic member 420 may be a coil spring.

The fixing block 430 is fixedly coupled to one end of the opening of the housing portion 410 and supports one side of the elastic member 420. At this time, the other side of the elastic member 420 accommodated inside the housing portion 410 may be exposed to the outside through an opening at the other end of the housing portion 410.

The moving block 440 is partially inserted into the inside of the housing part 410 through the other end opening of the housing part 410 and elastically supports the other side of the elastic member 420. The moving block 440 is slidably moved in and out of the housing portion 410 through the other end opening of the housing portion 410 by the elasticity of the elastic member 420.

A coupling portion 441 may be provided on the outer surface of the moving block 440. To elaborate, a convex protrusion is formed to protrude from the lower surface of the moving block 440, so that the protrusion can be pressed into a coupling groove formed on the outer surface of the first moving plate 100 or the second moving plate 200. Accordingly, the moving block 440 may be coupled to the first moving plate 100 or the second moving plate 200.

As another embodiment, a concave coupling groove in which coupling members such as bolts and screws are spirally coupled may be formed on the lower surface of the moving block 440. Accordingly, the movable block 440 may be fixed to the first movable plate 100 or the second movable plate 200 by a coupling member.

The repulsive force applicator 400 according to the first embodiment of the present invention is provided on the fixed block 430 and the moving block 440 to limit the moving distance of the moving block 440 when the elastic member 420 is contracted. It may be configured to further include protrusions 431 and 442.

The limiting protrusion includes a first limiting protrusion 431 formed on the outer surface of the fixed block 430 and a second limiting protrusion 442 formed on the outer surface of the moving block 440. The first limiting protrusion 431 and the second limiting protrusion 442 protrude from the fixed block 430 and the moving block 440, respectively, and face each other on the inside of the housing portion 410. At this time, the protrusion length of the first limiting protrusion 431 and the protruding length of the second limiting protrusion 442 may be formed differently.

When the moving block 440 is moved to the inside of the housing part 410 and the elastic member 420 is contracted inside the housing part 410, the free end of the first limiting protrusion 431 and the second limiting protrusion 442 ) As the free ends of the blocks contact each other, the moving distance of the moving block 440 is limited.

Figure 9 is a cross-sectional view showing a second embodiment of the repulsive force application part in the magnetic field generating device according to an embodiment of the present invention.

Referring to Figure 9, the repulsive force applicator 400 according to the second embodiment of the present invention includes a housing portion 450, an elastic member 460, a first moving block 470, and a second moving block 480. It can be configured to include.

The housing portion 450 is hollow and has openings at both ends. The housing portion 450 is installed vertically between the first movable plate 100 and the second movable plate 200 and perpendicular to the first movable plate 100 and the second movable plate 200.

The elastic member 460 is accommodated inside the housing portion 450 and is installed in the longitudinal direction of the housing portion 450. The elastic member 460 may be a coil spring. At this time, one side and the other side of the elastic member 460 accommodated inside the housing portion 450 may be exposed to the outside through one end opening and the other end opening of the housing portion 450, respectively.

The first moving block 470 is partially inserted into the inside of the housing part 450 through one end opening of the housing part 450 and elastically supports one side of the elastic member 460. The first moving block 470 is slidably moved in and out of the housing portion 450 through one end opening of the housing portion 450 by the elasticity of the elastic member 460.

The second moving block 480 is partially inserted into the inside of the housing part 450 through the other end opening of the housing part 450 and elastically supports the other side of the elastic member 460. The second moving block 480 is slidably moved in and out of the housing portion 450 through the other end opening of the housing portion 450 by the elasticity of the elastic member 460.

A coupling portion 481 may be provided on the outer surface of the second moving block 480. To elaborate, a convex protrusion is formed to protrude from the lower surface of the second moving block 480, so that the protrusion can be pressed into a coupling groove formed on the outer surface of the first moving plate 100 or the second moving plate 200. Accordingly, the second moving block 480 may be coupled to the first moving plate 100 or the second moving plate 200.

As another embodiment, a concave coupling groove in which coupling members such as bolts and screws are spirally coupled may be formed on the lower surface of the second moving block 480. Accordingly, the second moving block 480 may be fixed to the first moving plate 100 or the second moving plate 200 by a coupling member.

The repulsive force applicator 400 according to the second embodiment of the present invention is provided on the first moving block 470 and the second moving block 480, and when the elastic member 460 is contracted, the first moving block 470 and It may further include limiting protrusions 471 and 482 that limit the moving distance of the second moving block 480.

The limiting protrusion includes a first limiting protrusion 471 formed on the outer surface of the first movable block 470 and a second limiting protrusion 482 formed on the outer surface of the second movable block 480. The first limiting protrusion 471 and the second limiting protrusion 482 are formed to protrude from the first moving block 470 and the second moving block 480 and face each other on the inside of the housing portion 450. At this time, the protrusion length of the first limiting protrusion 471 and the protruding length of the second limiting protrusion 482 may be formed differently.

When the first moving block 470 and the second moving block 480 are moved inside the housing portion and the elastic member 460 is contracted inside the housing portion 450, the free end of the first limiting protrusion 471 and As the free ends of the second limiting protrusions 482 come into contact with each other, the moving distances of the first moving block 470 and the second moving block 480 are limited.

The operation process of the magnetic field generating device 10 according to an embodiment of the present invention configured as described above will be described as follows.

Figure 10 is a cross-sectional view and an enlarged view showing an operating state in which an attractive force is applied between magnets in the magnetic field generating device according to an embodiment of the present invention, and Figure 11 is a cross-sectional view and an enlarged view showing a repulsive force applied between magnets in the magnetic field generating device according to an embodiment of the present invention. This is a cross-sectional and enlarged view showing the operating state.

10 and 11, when the drive unit 800 is driven and the rotational power of the motor is transmitted to the rotation shaft 300 through the reducer, the rotation shaft 300 is rotated in one direction, and the first moving plate 100 ) and the second moving plate 200 are close to each other.

A magnetic field application unit 900 in which a magnetic field is generated is formed as an attractive force acts between the first magnet module 110 and the second magnet module 210 that face each other and are close to each other. As the sheet portion 50 passes through the magnetic field application unit 900, the sheet portion 50 is aligned and aligned by the magnetic field.

At this time, as the first moving plate 100 and the second moving plate 200 approach, the elastic member of the repulsive force application unit 400 installed vertically between the first moving plate 100 and the second moving plate 200 ( 420 is contracted inside the housing portion 410 by sliding the movable block 440 to the inside of the housing portion 410 under the pressure of the first movable plate 100 and the second movable plate 200.

When the driving unit 800 is driven again so that the rotating shaft 300 rotates in the reverse direction and the rotational power of the motor is transmitted to the rotating shaft 300 through the reducer, the first movement is performed by the elastic restoring force of the contracted elastic member 420. While applying a repulsive force to the plate 100 and the second moving plate 200, the first magnet module ( 110) and the second magnet module 210 cancel out the attractive force.

The magnetic field generator 10 according to an embodiment of the present invention can offset the attractive force between the first magnet module 110 and the second magnet module 210 by using the elastic restoring force of the elastic member 420, so that the motor By reducing the load on the motor and reducer, the capacity of the motor and reducer can be reduced, and manufacturing and operating costs can be reduced by miniaturizing the equipment.

FIG. 12 is a diagram for explaining a magnetic field generating system for reducing sheet tension according to another embodiment of the present invention, and FIG. 13 is a diagram for explaining the arrangement of the magnetic field generating device shown in FIG. 12.

Referring to FIG. 12, the magnetic field generating system for reducing sheet tension according to another embodiment of the present invention includes a coating device (1) and a plurality of magnetic field generating devices (20a, 20b, 20c,...,20n, hereinafter '20). ') and a drying device (2).

The coating device 1 coats the negative electrode material on the negative electrode material film. The state in which the negative electrode material is coated on the negative electrode material film is referred to as the sheet portion 50. The sheet portion 50 discharged from the coating device 1 is transferred to the magnetic field generating device 20.

The magnetic field generator 20 applies magnetic force to the sheet portion 50 so that the cathode material in the sheet portion 50 is oriented in the same direction. The magnetic field generating devices 20 may be arranged at regular intervals (second intervals) shifted in the vertical direction of the moving direction of the seat portion 50 in the order in which they are arranged along the moving direction of the seat portion 50.

For example, a case where the magnetic field generator 20 is comprised of a first magnetic field generator 20a, a second magnetic field generator 20b, and a third magnetic field generator 20c as shown in FIG. 13 will be described. I decided to do it. In this case, the first magnetic field generator 20a, the second magnetic field generator 20b, and the third magnetic field generator 20c may be arranged in that order along the moving direction of the sheet portion 50. At this time, the second magnetic field generator 20b is placed lower or higher than the first magnetic field generator 20a, and the third magnetic field generator 20c is placed lower or higher than the second magnetic field generator 20b. It can be.

The sheet portion 50 that is magnetically aligned in the magnetic field generating device 20 is transferred to the drying device 2.

The drying device 2 dries the self-oriented sheet portion 50 to maintain the anode material in an oriented state.

Figure 14 is a perspective view schematically showing the magnetic field generator shown in Figure 12.

Referring to FIG. 14, the magnetic field generating device 20 according to another embodiment of the present invention includes a first moving plate 1100, a second moving plate 1200, a rotating shaft 300, a repulsive force application unit 400, and a first moving plate 1100. 1 It includes a fixing plate 500, a second fixing plate 600, a fixing shaft 700, and a driving unit 800, and the self-alignment device has the same negative electrode material in the sheet portion 50 coated with the negative electrode material on the negative electrode material film. It may be a device that applies magnetic force to the sheet portion 50 so that it is oriented in one direction.

The first moving plate 1100 is provided horizontally in a flat plate shape, and a first magnet module 1110 of a first Halbach array may be provided on its upper surface. In the first magnet module 1110, the first magnet of the first pole and the second magnet of the second pole may be sequentially arranged alternately in a direction perpendicular to the moving direction of the seat portion 50 at a third interval.

The second moving plate 1200 is provided horizontally in the shape of a flat plate, and has a second magnet module 1210 of a second Halbach arrangement on its lower surface, and moves the sheet portion 50 to be self-oriented as it moves. It may be disposed opposite to the plate 1100. In the second magnet module 1210, the second magnet of the second pole and the first magnet of the first pole may be sequentially arranged alternately in a direction perpendicular to the moving direction of the seat portion 50 at a third interval.

The first magnet module 1110 and the second magnet module 1210 may be arranged so that their different polarities face each other in the direction of movement of the seat portion 50.

For detailed descriptions of the rotation shaft 300, the repulsive force application unit 400, the first fixing plate 500, the second fixing plate 600, the fixing shaft 700, and the driving unit 800, refer to FIGS. 1 to 11. I decided to do it.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand.

Therefore, the true technical protection scope of the present invention should be determined by the claims.

1: Coating device 2: Drying device
10, 20: magnetic field generator 50: seat part
100: first moving plate 110: first magnet module
200: second moving plate 210: second magnet module
300: rotation axis 310: first spiral portion
320: second spiral portion 400: repulsive force application portion
410, 450: Housing portion 420, 460: Elastic member
430: Fixed block 431, 442, 471, 482: Limiting protrusion
440: moving block 441, 481: coupling part
470: 1st moving block 480: 2nd moving block
500: first fixing plate 600: second fixing plate
700: Fixed shaft 800: Drive part
900: Magnetic field authorization unit

Claims (12)

A first moving plate provided with a plurality of first magnet modules;
a second moving plate provided with a plurality of second magnet modules and disposed opposite to the first moving plate so that the seat portion is moved and self-oriented;
It is spirally coupled to the first moving plate and the second moving plate, and the first moving plate and the second moving plate are moved according to the direction of rotation to adjust the magnetic force by adjusting the gap between the first moving plate and the second moving plate. a rotation axis that moves the plates in opposite directions; and
It includes a driving part coupled to the rotating shaft and providing rotational power to the rotating shaft,
In the first moving plate, the plurality of first magnet modules of a first Halbach array are arranged at first intervals along the moving direction of the seat portion,
In the second moving plate, the plurality of second magnet modules in a second Halbach arrangement are arranged at first intervals along the moving direction of the seat portion,
The plurality of first magnet modules are,
arranged at a second interval shifted in a direction perpendicular to the moving direction of the seat portion in the order arranged along the moving direction of the seat portion,
The plurality of second magnet modules are,
A magnetic field generating device for reducing sheet tension, characterized in that it is arranged in an order arranged along the moving direction of the sheet part and shifted at a second interval in a direction perpendicular to the moving direction of the sheet part.
delete According to paragraph 1,
The first magnet module is,
The first magnet of the first pole and the second magnet of the second pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval,
The second magnet module is,
The second magnet of the second pole and the first magnet of the first pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval,
A magnetic field generating device for reducing sheet tension, characterized in that the first magnet module and the second magnet module are arranged so that different polarities face each other in the moving direction.
According to paragraph 1,
It is fixedly coupled to the first movable plate or the second movable plate, is provided between the first movable plate and the second movable plate, and applies a repulsive force to the first movable plate and the second movable plate. A magnetic field generator for reducing sheet tension, characterized in that it further includes a part.
According to paragraph 1,
a first fixed plate provided outside the first moving plate and rotatably coupled to the rotating shaft;
a second fixed plate provided outside the second moving plate, spaced apart from the first fixed plate, and rotatably coupled to the rotation shaft; and
A magnetic field generator for reducing sheet tension, further comprising a fixed axis fixed between the first fixed plate and the second fixed plate and movably coupled to the first moving plate and the second moving plate. .
According to clause 5,
The outer surface of the rotating shaft includes a first spiral portion with a thread formed up to one end with respect to the central portion of the rotating shaft, and a second spiral portion with a screw thread formed up to the other end in a direction opposite to the rotation direction of the first spiral portion. A magnetic field generator for reducing sheet tension, characterized in that:
According to paragraph 1,
When the first moving plate and the second moving plate are close to each other, a magnetic field applying portion is formed between the first moving plate and the second moving plate where an attractive force between the first moving plate and the second moving plate acts. A magnetic field generator for reducing sheet tension, characterized in that.
As a magnetic field generation system,
It includes a plurality of magnetic field generators that apply magnetic force so that the negative electrode material coated on the sheet portion is oriented in the same direction,
The magnetic field generator is,
A first moving plate provided with a first magnet module of a first Halbach array;
a second moving plate provided with a second magnet module in a second Halbach arrangement, and disposed opposite to the first moving plate so that the sheet portion is moved and self-oriented;
It is spirally coupled to the first moving plate and the second moving plate, and the first moving plate and the second moving plate are moved according to the direction of rotation to adjust the magnetic force by adjusting the gap between the first moving plate and the second moving plate. a rotation axis that moves the plates in opposite directions; and
A driving unit coupled to the rotating shaft and providing rotational power to the rotating shaft,
The plurality of magnetic field generators,
A magnetic field generating system for reducing sheet tension, characterized in that the magnetic field generation system is arranged at a second interval shifted in a direction perpendicular to the moving direction of the seat portion in the order arranged along the moving direction of the seat portion.
delete According to clause 8,
The first magnet module is,
The first magnet of the first pole and the second magnet of the second pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval,
The second magnet module is,
The second magnet of the second pole and the first magnet of the first pole are sequentially arranged alternately in a direction perpendicular to the moving direction of the sheet portion at a third interval,
A magnetic field generation system for reducing sheet tension, wherein the first magnet module and the second magnet module are arranged so that different polarities face each other in the moving direction.
According to clause 8,
The magnetic field generator is,
It is fixedly coupled to the first movable plate or the second movable plate, is provided between the first movable plate and the second movable plate, and applies a repulsive force to the first movable plate and the second movable plate. A magnetic field generation system for reducing sheet tension, characterized in that it further includes a part.
According to clause 8,
The magnetic field generator is,
a first fixed plate provided outside the first moving plate and rotatably coupled to the rotating shaft;
a second fixed plate provided outside the second moving plate, spaced apart from the first fixed plate, and rotatably coupled to the rotation shaft; and
A magnetic field generation system for reducing sheet tension, further comprising a fixed axis fixed between the first fixed plate and the second fixed plate and movably coupled to the first moving plate and the second moving plate. .