KR102495645B1 - Information outputting apparatus - Google Patents

Abstract

An information output device according to an embodiment includes an electric permanent magnet unit through which current flows; a plate whose position relative to the electric permanent magnet unit changes; a housing that surrounds the electric permanent magnet unit and the plate and has one side open; and an output unit that rises or descends through the open portion of the housing, wherein the relative position of the permanent magnet unit and the plate is changed according to the direction of current flowing through the electric permanent magnet unit, so that the upper end of the output unit is connected to the housing. can rise or fall.

Description

Information output device {INFORMATION OUTPUTTING APPARATUS}

The description below relates to an information output device.

An electromagnet is a magnet made using the principle that a magnetic field is formed around a wire when current flows through it. The magnitude of this magnetic field is proportional to the current and inversely proportional to the square of the distance from the conductor. A solenoid is a tightly wound cylindrical wire in a coil shape. The magnetic field generated by this solenoid is almost 0 outside the solenoid, and a nearly uniform magnetic field is generated inside the solenoid, and both ends represent the S pole and the N pole, respectively.

In particular, the permanent magnet may be applied to a holding device or an actuator, and may be used to attach a target made of a magnetic material such as iron using magnetic force by applying a high current. Korean Patent Laid-open Publication No. 10-2020-0099534 (August 24, 2020) discloses a technical concept of an actuator including an electromagnet and an operating method thereof.
The above background art is possessed or acquired by the inventor in the process of deriving the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention.

delete

An object of one embodiment is to provide an information output device capable of being turned on and off according to a current direction.

An information output device according to an embodiment includes an electric permanent magnet unit through which current flows; a plate whose position relative to the electric permanent magnet unit changes; a housing that surrounds the electric permanent magnet unit and the plate and has one side open; and an output unit that rises or descends through the open portion of the housing, wherein the relative position of the permanent magnet unit and the plate is changed according to the direction of current flowing through the electric permanent magnet unit, so that the output unit rises with respect to the housing. Or you can descend.

The electric permanent magnet unit may include a static magnet; a reversible magnet having smaller coercivity than the static magnet; and a core providing a magnetic force path through which the magnetic field formed by the static magnet and the reversible magnet passes.

The reversible magnet is wound with a solenoid coil, and the direction of current flowing through the solenoid coil may be changed.

In the reversible magnet, as the direction of the current flowing through the solenoid coil is changed, the magnetization direction of the reversible magnet may be changed.

In the information output device, the plate is fixed to the housing, the electric permanent magnet unit is movably connected with respect to the plate, and the output unit is connected to the electric permanent magnet unit so that it can move integrally.

In the information output device, the electric permanent magnet unit is fixed to the housing, the plate is movably connected with respect to the electric permanent magnet unit, and the output unit is connected to the plate so as to be movable integrally.

The plate may have a tapered corner portion, and the core may be formed in a shape conforming to the corner portion of the plate.

The static magnet and the reversible magnet may be stacked in a direction in which the output unit moves.

The static magnet and the reversible magnet may be arranged side by side in a direction perpendicular to a direction in which the output unit moves.

The static magnet may be a neodymium (NdFeB) magnet.

The reversible magnet may be an AlNiCo magnet.

The information output device may further include an elastic body providing elastic restoring force in a direction in which a distance between the electric permanent magnet unit and the plate increases.

According to an embodiment, an information output device including a static magnet, a reversible magnet whose magnetization direction is switched according to a direction in which an external current flows, and an output unit includes, when the external current flows in a first direction, the static magnet and When the magnetization direction of the reversible magnet is reversed and the external current flows in a second direction opposite to the first direction, the magnetization directions of the static magnet and the reversible magnet coincide, and the output unit When the external current flows in the first direction, the information output device may output first information, and when the external current flows in the second direction, the information output device may output second information.

In a state in which the first information is output, the state in which the first information is output is maintained even if the external current does not flow, and in a state in which the second information is output, the second information is output even if the external current does not flow. status can be maintained.

The information output device may include a core in which the static magnet and the reversible magnet are disposed; a plate whose position relative to the core changes; and a housing surrounding the static magnet, the reversible magnet, and the plate and having one side open, wherein the output unit outputs the first information or the first information by moving up or down through the open part of the housing. 2 information can be output.

One of the core and the plate may be fixed to the housing, the other may be movably connected with respect to the housing, and the output unit may be connected to the other and integrally driven.

An information output device according to an embodiment includes a housing having one side opened; an electropermanent magnet unit disposed inside the housing and having current flowing therein; and a pin that ascends or descends through the open portion of the housing by an attractive force generated between the electric permanent magnet units according to a direction of current flowing through the electric permanent magnet unit, wherein the pin rises with respect to the housing. Or by descending, information can be output.

An information output device according to an embodiment can be turned on or off by changing the direction of current, and can not consume power when maintained in an on or off mode.

1 is an information output device according to an embodiment.
2 is a diagram showing the principle of an information output device according to an embodiment.
3 is a diagram showing how an information output device is driven according to an exemplary embodiment.
4 is a diagram showing how an information output device is driven according to an exemplary embodiment.
5 is a diagram illustrating an example in which an information output device according to an embodiment is utilized.
6 is a diagram illustrating a horizontally arranged and driven information output device according to an exemplary embodiment.
7 is a diagram illustrating a vertically arranged and driven information output device according to an exemplary embodiment.
8 is a diagram illustrating a horizontal arrangement and a fixed type information output device according to an embodiment.
9 is a diagram illustrating a vertically arranged and fixed type information output device according to an exemplary embodiment.

Hereinafter, embodiments will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the embodiment, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment, the detailed description will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

Components included in one embodiment and components having common functions will be described using the same names in other embodiments. Unless stated to the contrary, descriptions described in one embodiment may be applied to other embodiments, and detailed descriptions will be omitted to the extent of overlap.

1 is an information output device according to an embodiment, and FIG. 2 is a diagram showing the principle of the information output device according to an embodiment.

1 and 2, the information output device 1 includes a static magnet 111 and a reversible magnet 112 whose magnetization direction is switched according to the direction in which an external current flows. And, as the direction in which the external current flows is switched, the information output device 1 can be turned on and off. For example, when an external current flows in a specific direction, the output unit 14 rises or falls with respect to the housing 13, thereby outputting information. According to this structure, power may be consumed only when the on-off mode is switched, and no power may be consumed when the on-off mode is maintained. A more specific driving principle will be described later with reference to FIG. 2 .

A plurality of information output devices 1 may constitute one assembly, and at least a portion of the plurality of information output devices 1 included in one assembly may be turned on or off, thereby delivering various and specific information. . For example, the information output device 1 may utilize braille. A braille board according to an embodiment may include a plurality of braille characters, and at least some braille characters among the plurality of braille characters may have a structure of an information output device 1 to be described later. For example, the information output device 1 may include an electropermanent magnet unit (EPM unit) 11, a plate 12, a housing 13, an output unit 14, and an elastic body 16. there is.

The electric permanent magnet unit 11 uses a difference in coercive force between two permanent magnets having the same magnetic density but different coercive force, a switch that changes magnetic poles by winding a coil around a permanent magnet having a relatively weak coercive force and flowing an electric current. The magnetic field can be turned on and off by operating as . Current may flow inside. For example, the electric permanent magnet unit 11 may include a static magnet 111 , a reversible magnet 112 , a core 113 and a solenoid coil 114 .

The static magnet 111 is a permanent magnet having high coercivity and may be referred to as a hard magnet. The static magnet 111 may be surrounded and supported by the core 113 . For example, the static magnet 111 may be a neodymium (NdFeB) magnet.

The reversible magnet 112 is a permanent magnet having low coercivity and may be referred to as a soft magnet. The reversible magnet 112 may have less coercivity than the static magnet 111 . That is, it can be understood that the magnetization direction of the reversible magnet 112 is easily changed by an external magnetic field compared to the static magnet 111 . For example, the reversible magnet 112 is wound with a solenoid coil 114, and the direction of current flowing through the solenoid coil 114 may be changed. As the direction of the current flowing through the solenoid coil 114 is changed, the magnetization direction of the reversible magnet 112 may be changed. For example, the reversible magnet 112 may be an AlNiCo magnet.

Meanwhile, as shown in FIG. 1 , the solenoid coil may be provided in a structure in which not only the reversible magnet 112 but also the static magnet 111 are wound together. Even in this structure, by considering the difference in coercivity between the reversible magnet 112 and the static magnet 111, by appropriately adjusting the strength of the current flowing through the solenoid coil, the electric permanent magnet unit 11 is turned on and off. can make it In other words, the strength of the current for the solenoid coil 115 to generate the electromagnetic force corresponding to the coercive force of the reversible magnet 112 is referred to as the “first strength”, and the current for generating the electromagnetic force corresponding to the coercive force of the static magnet 111 When the intensity of is referred to as “second intensity”, the magnetization direction of the reversible magnet 112 may be changed by applying a current having an intensity greater than the first intensity and less than the second intensity to the solenoid coil.

The core 113 may have an inner space accommodating the static magnet 111 and the reversible magnet 112 . The positive electrode of the static magnet 111 and the positive electrode of the reversible magnet 112 may be interviewed on both inner walls of the core 113, respectively. Through this structure, a magnetic field passing through the core 113 can be formed. For example, the core 113 may be formed of a ferromagnetic material such as iron.

The position of the plate 12 relative to the electric permanent magnet unit 11 may change. For example, the plate 12 may be formed of a ferromagnetic material such as iron. For example, the information output device 1 may include a structure in which one of the plate 12 or the electric permanent magnet unit 11 is fixed and the other one moves. For example, the plate 12 and the electric permanent magnet unit 11 may be connected via an elastic body 16 disposed therebetween, and when the information output device 1 is turned on or off, by manpower. They can come closer to each other or move away by elasticity. In this case, the elastic body 16 may be formed of a non-magnetic body.

The elastic body 16 may be disposed between the plate 12 and the electric permanent magnet unit 11 . For example, the elastic body 16 may include a spring or a sponge.

For example, as shown in FIG. 1 , the plate 12 may have a tapered corner portion, and the core 113 may be formed in a shape conforming to the plate 12 . For example, the plate 12 has a shape in which the cross-sectional area decreases toward the static magnet, the core 113 has a shape in which the cross-sectional area decreases toward the plate 12, and the end of the plate 12 And ends of the core 113 may be molded to each other. For example, the end of the plate 12 and the end of the core 113 may have a shape having an inclination of 45 degrees. According to this structure at 45 degrees to each other, the area of the surface where the core 113 and the plate 12 come into contact is widened, so that the magnetic field can be efficiently transmitted.

The housing 13 surrounds the electric permanent magnet unit 11 and the plate 12, and one side may be open. For example, the housing 13 may be formed of a non-magnetic material. The housing 13 may provide a space in which the output unit 14 can slide.

The output unit 14 can rise or fall through the open portion of the housing 13 . For example, the output unit 14 is a part movable with respect to the housing 13 among the electric permanent magnet unit 11 and the plate 12 (eg, the electric permanent magnet unit 11 based on FIG. 1) and By being connected, it is movable relative to the housing 13 . For example, the output unit 14 may be formed of a non-magnetic material. The output unit 14 may maintain at least two or more states. For example, a state in which the output unit 14 is lowered may be referred to as a "first state", and a state in which the output unit 14 is raised may be referred to as a "second state". In addition, since the abnormal state can be confirmed through visual or tactile senses, the user's sensory information that can be sensed in each state can be referred to as “first information” and “second information”. In other words, the information output device can output information through the state change of the output unit 14, and once the state is changed, the information output can be maintained even without the supply of external power.

Referring to FIG. 2, the electric permanent magnet unit 11 includes a static magnet 111 and a reversible magnet 112 whose magnetization direction is switched according to the direction in which an external current flows, and an external current (eg, a solenoid coil ( 114) flows in the first direction, the magnetization directions of the static magnet and the reversible magnet are reversed, and when the external current flows in the second direction opposite to the first direction, the static magnet and the reversible magnet The magnetization directions may be matched.

For example, according to the law of clockwise screw, the current flowing in the solenoid coil 114 flows in a direction (first direction) surrounding the reversible magnet 112 such that the thumb of the right hand faces to the right. In this case, the N pole of the static magnet 111 may be disposed on the left side while the N pole of the reversible magnet 112 may be formed on the right side (left side view of FIG. 2). According to this configuration, when current flows in the first direction, the magnetization directions of the static magnet 111 and the reversible magnet 112 are reversed, and the magnetic field formed by the static magnet 111 and the reversible magnet 112 is One closed curve is formed, and at this time, the attractive force may not act on the plate 12 .

Conversely, when the current flowing through the solenoid coil 114 flows in a direction (second direction) surrounding the reversible magnet 112 such that the thumb of the right hand faces the left side, the N pole of the static magnet 111 is placed on the left side And, the N pole of the reversible magnet 112 may also be formed on the left side (right side view of FIG. 2). According to this configuration, when the current flows in the second direction, the magnetization directions of the static magnet 111 and the reversible magnet 112 become the same, so that the magnetic fields formed by the static magnet 111 and the reversible magnet 112 are A closed curve passing through the plate 12 is formed, and at this time, an attractive force may act on the plate 12 .

That is, in the plate 12, the generation of attraction between the electric permanent magnet units 11 varies depending on the direction of the current flowing through the electric permanent magnet unit 11, so that the relative strength of the permanent magnet unit 11 and the plate 12 varies. Location may vary. At this time, one of the core 113 and the plate 12 (eg, the core 113) is fixed to the housing 13, and the other one (eg, the plate 12) is moved relative to the housing 13. can possibly be connected. In addition, the output unit 14 is connected to the other one (for example, the plate 12) movably connected with respect to the housing 13 and driven integrally, so that the upper end of the output unit 14 is connected to the housing 13. can rise or fall.

3 is a diagram showing how an information output device is driven according to an exemplary embodiment.

Referring to FIG. 3 , the plate 12 of the information output device 1 is fixed to the housing 13, the electric permanent magnet unit 11 is movably connected with respect to the plate 12, and the output unit 14 ) is connected to the electric permanent magnet unit 11 and can move integrally.

4 is a diagram showing how an information output device is driven according to an exemplary embodiment.

Referring to Fig. 4, the electric permanent magnet unit 11 of the information output device 2 is fixed to the housing 13, the plate 12 is movably connected with respect to the electric permanent magnet unit 11, and the output The part 14 is connected to the plate 12 and can move integrally.

5 is a diagram illustrating an example in which an information output device according to an embodiment is utilized.

Referring to FIG. 5 , the information output device 3 may include an electric permanent magnet unit 31 , a housing 33 , a pin 35 and an elastic body 36 .

The housing 33 may provide a sliding space in which the pin 35 is slidable.

The electric permanent magnet unit 31 may be fixed in position relative to the housing 33 , for example. For example, the electric permanent magnet unit 31 may be fixed to a support structure formed in the middle of the sliding space of the housing 33 .

The pin 35 may have an accommodation space capable of accommodating at least a part of the electric permanent magnet unit 31 and the supporting structure connected thereto. For example, one side (eg, a lower portion) of the accommodating space of the pin 35 based on the electric permanent magnet unit 31 may be formed of a ferromagnetic material, and the opposite side thereof may be formed of a non-magnetic material.

The elastic body 36 is disposed between one wall (for example, a bottom wall or an upper wall) of the accommodation space of the pin 35 and the electric permanent magnet unit 31, so that the pin 35 is moved by the elastic restoring force of the elastic body 36. A specific initial position of can be maintained. For example, the elastic body 36 may be formed of a non-magnetic material.

(i) First, when the information output device 3 is in an off mode, the pin 35 is moved near the bottom of the housing 33 by the weight of the pin 35 and the elastic force of the elastic body 36. can be located (ii) Next, when a current momentarily flows inside the electric permanent magnet unit 31 (eg, a solenoid coil surrounding a reversible magnet), an attractive force is generated between the electric permanent magnet unit 31 and the bottom of the pin 35 Thus, the pin 35 can move toward the electric permanent magnet unit 31 whose position is fixed. That is, the pin 35 rises and is exposed from the housing 33, so that the user can recognize the pin 35 that has risen. (iii) Conversely, when a current in the opposite direction is momentarily applied to the electric permanent magnet unit 31, the attractive force between the electric permanent magnet unit 31 and the pin 35 disappears and the elastic restoring force of the elastic body 36 The pin 35 may descend.

6 is a diagram illustrating a horizontally arranged and driven information output device according to an exemplary embodiment.

Referring to FIG. 6 , in the information output device 4, a pair of magnets 111 and 112 may be disposed in a horizontal direction, and an electric permanent magnet unit 41 may be driven in a vertical direction together with an output unit 14. there is. For example, the information output device 4 may include an electric permanent magnet unit 41 , a plate 12 , a housing (not shown) and an output unit 14 . For the sake of understanding the internal structure, it should be noted that the illustration of the housing is omitted.

The electric permanent magnet unit 41 may include a static magnet 111, a reversible magnet 112, a core 113, and a solenoid coil (no sign). Here, the static magnet 111 and the reversible magnet 112 may be arranged side by side in a direction perpendicular to the direction in which the output unit 14 moves.

The plate 12 is fixed relative to the housing, and the electric permanent magnet unit 41 is movable relative to the plate 12 .

The output unit 14 is connected to the electric permanent magnet unit 41 and can move integrally.

7 is a diagram illustrating a vertically arranged and driven information output device according to an exemplary embodiment.

Referring to FIG. 7 , in the information output device 1, a pair of magnets may be disposed in a vertical direction, and an electric permanent magnet unit may be driven together with an output unit. Static magnets and reversible magnets may be stacked along the direction in which the output unit moves. The plate is fixed to the housing, and the electric permanent magnet unit and the output unit fixed thereto are movable relative to the plate.

8 is a diagram illustrating a horizontal arrangement and a fixed type information output device according to an embodiment.

Referring to FIG. 8 , in the information output device 5, a pair of magnets in the electric permanent magnet unit 41 may be horizontally disposed, and the plate 12 and the output unit 14 may be driven together. The electric permanent magnet unit 41 is fixed relative to the housing, and the plate 12 and the output unit fixed thereto are movable relative to the housing.

9 is a diagram illustrating a vertically arranged and fixed type information output device according to an exemplary embodiment.

Referring to FIG. 9 , in the information output device 2, a magnet may be vertically disposed, and a plate may be driven together with an output unit. The electric permanent magnet unit is fixed relative to the housing, and the plate and the output unit fixed thereto are movable relative to the housing.

As described above, although the embodiments have been described with limited drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the described method, and/or components of the described structure, device, etc. may be combined or combined in a different form from the described method, or other components or equivalents may be used. Appropriate results can be achieved even if substituted or substituted by

Claims (17)

Electricity comprising a core in which a current flows, a static magnet, a reversible magnet having a smaller coercivity than the static magnet, and a magnetic force path through which a magnetic field formed by the static magnet and the reversible magnet passes permanent magnet unit;
a plate whose position relative to the electric permanent magnet unit changes;
a housing that surrounds the electric permanent magnet unit and the plate and has one side open;
an output unit that rises or descends through the open portion of the housing, penetrates the plate, and is connected to the electric permanent magnet unit;
an elastic body provided between the static magnet and the plate and pressing the plate to be supported by the housing; and
Including a solenoid coil surrounding the reversible magnet,
The information output device according to the direction of the current flowing through the solenoid coil, the relative position of the permanent magnet unit and the plate is changed, so that the output part rises or falls with respect to the housing.
According to claim 1,
The reversible magnet,
The information output device characterized in that the magnetization direction of the reversible magnet is changed as the direction of the current flowing through the solenoid coil is changed.
According to claim 1,
The plate has a shape with tapered corners,
The information output device, characterized in that the core is formed in a shape that matches the corner portion of the plate.
According to claim 2,
The information output device according to claim 1, wherein the static magnet and the reversible magnet are stacked in a direction in which the output unit moves.
According to claim 1,
The static magnet,
An information output device characterized in that it is a neodymium (NdFeB) magnet.
According to claim 1,
The reversible magnet,
An information output device characterized in that it is an AlNiCo magnet.
An information output device including a static magnet, a reversible magnet whose magnetization direction is switched according to a direction in which an external current flows, and an output unit connected to the static magnet,
When the external current flows in a first direction, magnetization directions of the static magnet and the reversible magnet are reversed;
When the external current flows in a second direction opposite to the first direction, magnetization directions of the static magnet and the reversible magnet coincide,
The output unit outputs first information when the external current flows in the first direction, and outputs second information when the external current flows in the second direction. characterized in that,
The information output device,
a core in which the static magnet and the reversible magnet are disposed;
a plate whose position relative to the core changes;
a housing that surrounds the static magnet, the reversible magnet, and the plate and has one side open;
a solenoid coil surrounding the reversible magnet; and
Further comprising an elastic body provided between the plate and the static magnet,
The information output device according to claim 1 , wherein the output unit outputs the first information or the second information by ascending or descending through the open portion of the housing.
According to claim 7,
In a state in which the first information is output, a state in which the first information is output is maintained even if the external current does not flow,
In the state in which the second information is output, even if the external current does not flow, the state in which the second information is output is maintained. delete delete delete delete delete delete delete delete delete

Images