JP5175632B2 - Information display device - Google Patents

Description

  The present invention relates to an information display device that can be viewed by illuminating an information display unit with illumination even in a dark place such as at night.

  Conventionally, power is supplied from a commercial power source to an apparatus that illuminates the information display unit by illumination, such as an internal illumination display board. In addition, there is known a device that turns on illumination with electric power generated by natural forces such as sunlight and wind power for power saving and environmental protection.

Patent Document 1 discloses an information display device that stores electric power generated by a solar power generator and uses it for illumination.
JP-A-6-348214

  However, when power supplied from a commercial power source is used, the environmental load increases and wiring for supplying power is required. In the case of natural power generation, solar power cannot be generated at night, and the amount of power generation on cloudy or rainy days is reduced due to weather, and wind power cannot be generated in windless or light wind conditions. There was a problem of being easily affected by.

  Accordingly, it is an object of the present invention to provide an information display device that does not require electrical wiring for supplying commercial power without using commercial power and is not easily affected by the natural environment.

The present invention provides a display unit having a display panel for displaying information, illumination means for illuminating the display unit, and an internal unit that is installed inside the display unit. When external vibration is applied, vibration energy is converted into electric power. a vibration generating unit for converting a power storage device to be stored electric power for driving the illuminating means, are fixed on the ground, comprising a post for supporting the display unit in a position away from the ground, the said illuminating means Is driven by the electric power generated by the vibration power generation unit or the electric power generated by the vibration power generation unit and stored in the power storage device, and the vibration power generation unit is disposed in the display unit and generates a magnetic field. A coil capable of entering and exiting a magnetic field generated by the magnet, and one of the magnet and the coil is fixed to the display unit, and the other is supported by the display unit through an elastic means so as to vibrate. Characterized by generating an induced current by electromagnetic induction by the said and the magnet coil is relatively moved.

  According to the present invention, the vibration power generation unit generates power using not only natural vibrations but also vibrations generated by automobiles, pedestrians, and the like that can predict a certain amount of traffic. There are few. Therefore, it is possible to obtain an information display device that does not require electrical wiring for supplying commercial power and is not easily affected by the natural environment.

  Hereinafter, an information display device 100 according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of an information display device according to an embodiment of the present invention, and FIG. 2 is a right side view of FIG.

  The information display device 100 includes a display unit 10 that displays information such as a symbol mark and a logo, and a column 12 that holds the display unit 10. The information display device 100 is an internally illuminated information display device that emits light from the inside to cause the display unit 10 to emit light.

  The column 12 is columnar and is fixed to the ground and holds the display unit 10. There may be two columns 12 or one column 12 as in this embodiment. Moreover, the column 12 may not be provided depending on the embodiment as in the case of being attached to the wall of the store.

  The display unit 10 is a box shape formed by a support frame 14, a display plate 11 that displays information, an illumination unit 13 that irradiates the display plate 11, and power generation by vibration of the display unit 10, and power to the illumination unit 13. A vibration power generation unit 20 to be supplied and a power storage device (not shown) for storing the generated power are provided. The display unit 10 includes an illumination unit 13 inside, and irradiates the display plate 11 from the inside.

  The support frame 14 is a box-frame type outer frame of the display unit 10, and both sides of the support frame 14 are hollow for attaching the display plate 11. The support frame 14 is connected to and held by the column 12.

  The display board 11 is a transparent substantially square acrylic board that displays a brand logo, a house mark, or the like. The display board 11 is provided in the cavities on both sides of the support frame 14 of the display unit 10. The display plate 11 may be made of glass, film, vinyl, cloth, paper, or the like having transparency, in addition to the acrylic plate. When the direction in which the display board 11 is desired to be shown is limited to one direction, the display board 11 may be provided on only one side of the display unit 10. The display board 11 can take various modes depending on the shape of information to be displayed such as a rectangle or a circle other than a square.

  The lighting unit 13 includes a light emitting diode (LED) with low power consumption and high luminance, and a light emitting diode driving circuit that is a constant current circuit for causing the light emitting diode to emit light with power stored in the power storage device.

  The power storage device stores the power generated by the vibration power generation unit 20 and supplies the stored power to the light emitting diode drive circuit. In addition to using a secondary battery such as a lead storage battery or a nickel metal hydride battery, an electric double layer capacitor may be used for the power storage device.

  Hereinafter, the vibration power generation unit 20 provided in the display unit 10 will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a configuration diagram of the power generation device according to the embodiment of the present invention, and FIG. 4 is a plan view of a magnetic material used for power generation in FIG.

  The vibration power generation unit 20 is provided inside the display unit 10 and generates electric power for driving the illumination unit 13 when vibration is applied. The vibration power generation unit 20 includes a magnetic body 31 connected to the magnet 32 and a coil 21, and generates an induced current due to electromagnetic induction when the coil 21 enters and exits between the magnetic bodies 31.

  The magnet 32 is fixed to the support frame 14 of the display unit 10. The magnet 32 is a permanent magnet such as a ferrite magnet or a strong neodymium magnet. The magnet 32 is connected to a magnetic body 33 for connection to a magnetic body 31 used for power generation.

  The magnetic body 31 includes an N-pole magnetic body 31a having a rectangular parallelepiped shape and provided with a cylindrical hole, and a cylindrical S-pole magnetic body 31b. The magnetic body 31 is fixed to the support frame 14. The diameter of the hole provided in the N-pole magnetic body 31a is larger than the diameter of the S-pole magnetic body 31b.

  The N pole magnetic body 31 a of the magnetic body 31 is connected to the N pole of the magnet 32, and the S pole magnetic body 31 b is connected to the S pole of the magnet 32. Specifically, the N pole magnetic bodies 31a of the plurality of magnetic bodies 31 are connected in series to the adjacent N pole magnetic bodies 31a so that all the N pole magnetic bodies 31a have N pole magnetism, Each of the S pole magnetic bodies 31b of the plurality of magnetic bodies 31 is connected in parallel to the S pole of the magnet 32, so that all the S pole magnetic bodies 31b have S pole magnetism.

  In the cylindrical hole provided in the N-pole magnetic body 31a of the magnetic body 31, the S-pole magnetic body 31b having a cylindrical shape with a smaller diameter than the hole is disposed with a certain gap. Therefore, a magnetic field 31c is generated between the N pole magnetic body 31a and the S pole magnetic body 31b of the magnetic body 31.

  A plurality of coils 21 are formed by winding conductive wires in a cylindrical shape, and a plurality of coils 21 are provided corresponding to the magnetic field 31 c provided on the magnetic body 31. The coil 21 generates an induced current due to electromagnetic induction by entering and exiting a magnetic field generated in the magnetic body 31. As the number of turns of the coil 21 increases, the generated induced current increases, but the weight increases. It is preferable that the vibration can be most effectively used in the balance between the number of turns of the coil 21 and the weight depending on the vibration characteristics of the place where the information display device 100 is installed.

  The coil 21 is fixed to a diaphragm 23 that is held on the support frame 14 so as to be able to vibrate by a mechanical spring 24 as elastic means. A plurality of coils 21 are provided corresponding to the number of magnetic fields 31 c provided on the magnetic body 31, and are connected in series by connection wiring 22.

  The diaphragm 23 is an elongated rectangular plate and fixes a plurality of coils 21 used for power generation. The vibration plate 23 is supported by the support frame 14 via a mechanical spring 24 so as to vibrate, and vibrates inside the display unit 10 due to vibration of the information display device 100.

  The mechanical springs 24 are provided at both ends of the vibration plate 23 in the longitudinal direction, and hold the vibration plates 23 to which the coils 21 are fixed to the support frame 14 so as to be able to vibrate. The mechanical spring 24 is preferably a coil spring that preferably has a small spring constant, vibrates with a small force, and hardly vibrates.

  The vibration power generation unit 20 can be arranged vertically or horizontally depending on the vibration characteristics of the place where the information display device 100 is installed. By measuring the vibration characteristics of a place to be installed in advance and arranging it in a manner suitable for the place, the vibration can be effectively converted into electric power. For example, when the information display device 100 is installed as a sign at a gas station along a road with heavy traffic, the coil 21 causes the magnetic field 31c of the magnetic body 31 due to vertical vibration of the ground that occurs when a large vehicle passes. It is preferable to arrange the coil 21 of the vibration power generation unit 20 so that the central axis thereof, that is, the vibration direction is perpendicular to the ground. In addition, when installed in an urban area where the building wind blows strongly, the coil 21 can vibrately enter and exit the magnetic field 31c of the magnetic body 31 by vibration when the display unit 10 is swung sideways by the wind. It is preferable to arrange so that the vibration direction of the coil 21 of the vibration power generation unit 20 is horizontal to the ground.

  FIG. 5 is a configuration diagram of a vibration power generation unit according to another embodiment of the present invention, and FIG. 6 is a plan view of a magnetic material used for power generation in FIG.

  The vibration power generation unit 50 includes a magnetic body 41 and a plurality of magnetic bodies 51, and includes the same number of coils 21 as the magnetic fields 41 c and 51 c provided on the magnetic bodies 41 and 51 in parallel.

  The magnetic body 41 is composed of an S pole magnetic body 41a having a rectangular parallelepiped shape and provided with a cylindrical hole, and a columnar N pole magnetic body 41b. The magnetic body 41 is fixed to the support frame 14. The diameter of the hole provided in the S pole magnetic body 41a is larger than the diameter of the N pole magnetic body 41b.

  The magnetic body 51 has a rectangular parallelepiped shape and is composed of an S pole magnetic body 51a provided with two columnar holes arranged in the longitudinal direction, and a columnar N pole magnetic body 51b. The magnetic body 51 is fixed to the support frame 14. The diameter of the hole provided in the S pole magnetic body 51a is larger than the diameter of the N pole magnetic body 51b.

  The S pole magnetic body 41a of the magnetic body 41 provided at the end is connected to the S pole of the magnet 32, and the N pole magnetic body 51b of the magnetic body 51 provided at the opposite end is connected to the N pole of the magnet 32, respectively. Is done. When the S-pole magnetic body 41a has S-pole magnetism, the N-pole magnetic body 41b provided at regular intervals inside the holes formed in the S-pole magnetic body 41a has N-pole magnetism. The N pole magnetic body 41b is connected to the N pole magnetic body 51b of the adjacent magnetic body 51 by the magnetic body 33, and the connected N pole magnetic body 51b has N pole magnetism. By repeating this, all the S pole magnetic bodies 41a and 51a have S pole magnetism, and all the N pole magnetic bodies 41b and 51b have N pole magnetism.

  The coil 21 is provided corresponding to the magnetic fields 31c and 51c generated between the S pole magnetic bodies 41a and 51a provided on the magnetic bodies 41 and 51 and the N pole magnetic bodies 41b and 51b. Coil 21 is provided in parallel to a power storage device (not shown). In this way, a plurality of coils 21 may be connected in parallel to the power storage device, and the induced current generated in each coil 21 may be individually sent to the power storage device.

  Hereinafter, a case where the information display device 100 is turned on will be described.

  In order to put the information display device 100 in a lighting state, in addition to a mode in which a switch is provided and the light is manually turned on, a mode in which a timer is provided and the light is turned on at a set time or a brightness sensor is provided and the light is automatically turned on when the surroundings are dark An aspect may be sufficient.

  When the information display device 100 vibrates due to ground vibration or wind vibration, the display unit 10 also vibrates. The diaphragm 23 provided inside the display unit 10 is displaced by the vibration, and the diaphragm 23 continues to vibrate by the restoring force of the mechanical spring 24 that holds the diaphragm 23.

  When the diaphragm 23 vibrates, the coil 21 fixed to the diaphragm 23 also vibrates, and the coil 21 approaches or separates from the magnetic body 31. The coil 21 repeatedly enters and exits the magnetic field 31c of the magnetic body 31 fixed to the display unit 10 by vibration. Then, an induction current due to electromagnetic induction is generated in the coil 21, and the generated electric power is stored in the power storage device.

  The electric power stored in the power storage device is supplied to the light emitting diode drive circuit, and the light emitting diode of the illumination unit 13 provided in the display unit 10 is turned on. The light emitted from the light emitting diode illuminates the display board 11, and the brand logo, the house mark, etc. displayed on the display board 11 appear to shine from the outside.

  In addition to the case where the display board 11 displays a brand logo, a house mark, etc., when the display board 11 displays an emergency evacuation site, for example, even if an earthquake occurs at night, A large amount of electric power is stored by a large vibration, and the display board 11 can be irradiated to guide to an emergency evacuation site even if a power failure occurs thereafter.

  The display board 11 is attached to a high position by a support column 12, and the wind near the display board 11 often blows stronger than the wind near the ground. In addition to the mode of generating power using the vibration generated by the strong wind, the coil 21 can be vibrated by utilizing the change in the internal pressure of the display unit 10 caused by the wind received by the display panel 11. . Further, it is possible to generate electric power with a piezoelectric element by utilizing a change in internal pressure of the display unit 10.

  According to the above embodiment, the following effects are produced.

  Since the information display device 100 generates power by various vibrations such as vibration of the installed ground and wind, it is possible to generate a sufficient amount of power for lighting the lighting unit at night, and to supply commercial power No need for electrical wiring. Further, the mode of vibration often has a certain characteristic depending on the place where the information display device 100 is installed. By providing the vibration power generation unit 20 according to the mode, information display that is not easily affected by the natural environment is displayed. A device can be obtained.

  Hereinafter, an information display device 200 according to another embodiment of the present invention will be described with reference to FIGS.

  7 is a front view of an information display device according to another embodiment of the present invention, and FIG. 8 is a right side view of FIG.

  The information display device 200 includes a vibration power generation unit 20, a solar power generator 201, and a wind power generator 202.

  The information display device 200 does not need to turn on the internal lighting unit during a bright day, and normally turns on the lighting unit only at night. However, depending on the environment in which the information display device 200 is installed, vibrations from automobiles traveling on the road and vibrations caused by wind are sparse, and it cannot be expected that constant vibrations will occur every day, so that sufficient electric energy can be obtained. Sometimes not. In such a case, a method of supplying commercial power to power that is insufficient for the amount of power generated by vibration is also conceivable, but in this way, another natural power generation device is provided and power is generated in a hybrid manner with the vibration power generation unit 20. Can take.

  The solar power generator 201 generates electric power when irradiated with sunlight. Since the solar power generator 201 is most efficient when receiving sunlight vertically, the direction and the elevation angle are set according to the direction of the sun with respect to the place to be set. The gyromill type wind power generator 202 generates electric power by a power generator (not shown) when the blade 202a is rotated by the wind. The solar power generator 201 and the wind power generator 202 are connected to a power storage device, and the generated power is stored in the power storage device.

  In addition to housing the vibration power generation unit 20 in the display unit 10 as in the present embodiment, the display unit 10 may not include all the devices of the vibration power generation unit 20. For example, the diaphragm 23 may be provided outside the display unit 10 and the diaphragm 23 may receive wind directly, or the solar power generator 201 may be attached to the diaphragm 23 provided outside.

  According to the above configuration, since the lighting unit can be driven by the total amount of power generated by the vibration power generation unit 20, the solar power generator 201, and the wind power generator 202, the lighting time of the lighting unit can be extended.

  Below, the other aspect of a vibration electric power generation unit is demonstrated.

  FIG. 9 is a schematic view of a vibration power generation unit according to another embodiment of the present invention.

  The vibration power generation unit 300 includes a coil 321 and a magnetic body 331. The coil 321 enters and leaves a magnetic field 331c generated in the magnetic body 331, and generates an induced current due to electromagnetic induction. The vibration power generation unit 300 is connected to the information display device 100 provided in the vicinity and supplies the generated power.

  The magnetic body 331 has a large rectangular shape, and the N-pole magnetic body 331a of the magnetic body 331 includes four long holes in a matrix of two rows and two columns. In each of the four long holes, the S-pole magnetic bodies 331b are arranged at regular intervals. When the N pole magnetic body 331a is connected to the N pole of the magnet 32 and the S pole magnetic body 331b is connected to the S pole of the magnet 32, a magnetic field is generated between the N pole magnetic body 331a and the S pole magnetic body 331b. .

  The coil 321 is fixed to the lower surface of a rectangular diaphragm 323 having substantially the same size as the magnetic body 331. A plurality of coils 321 are provided corresponding to the magnetic field 331c generated between the N-pole magnetic body 331a and the S-pole magnetic body 331b of the magnetic body 331.

  The vibration power generation unit 300 is used on the ground. The magnetic body 331 is fixed to the ground, and a vibration plate 323 to which the coil 321 is fixed is placed so as to be able to vibrate. The diaphragm 323 vibrates when an automobile, a pedestrian, or the like passes above, and generates an induced current due to electromagnetic induction when the coil 321 enters and exits the magnetic field of the magnetic body 331 in an oscillating manner. The generated current passes through the electrical wiring provided in the column 12 of the information display device 100, is stored in the power storage device provided in the display unit 10, and drives the illumination unit 13. In addition to the mode of using the vibration of the diaphragm 323 as in the present embodiment, the coil 321 may be vibrated with respect to the magnetic body 331 using the deflection of the diaphragm 323.

  Thus, when the area where the vibration power generation unit 300 is installed is large, large electric power can be obtained by arranging the magnetic field of the magnetic body 331 and the coil 321 in a matrix.

  FIG. 10 is a schematic view of a magnetic body in a large vibration power generation unit.

  The magnetic body 431 includes an N-pole magnetic body 431a and an S-pole magnetic body 431b, and generates a magnetic field 431c therebetween. The N-pole magnetic body 431a and the S-pole magnetic body 431b draw a continuous meandering curve in the form of a hairpin curve that reciprocates between the left and right ends on a rectangular plane, and are opposed to each other with a certain interval so as to follow the curve. doing. A magnetic field 431c is generated between the N-pole magnetic body 431a and the S-pole magnetic body 431b.

  When a coil (not shown) that is formed corresponding to the magnetic field 431c provided between the N-pole magnetic body 431a and the S-pole magnetic body 431b and is held by the elastic means so as to be able to vibrate is brought in and out by vibration, an induced current caused by electromagnetic induction Is generated.

  Thus, large electric power can be obtained also by maximizing the length of a coil in the surface which arrange | positions the magnetic body 431 and a coil.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

  For example, the present invention can be applied to an external illumination type information display device that irradiates the display unit from the outside instead of the internal illumination type information display device as in the present embodiment.

  The information display device according to the present invention can be used for an internal illumination display plate that emits light from the inside, an external illumination display plate that emits light from the outside, and the like.

It is a front view of the information display device concerning an embodiment of the invention. It is a right view in FIG. It is a block diagram of the vibration electric power generation unit which concerns on embodiment of this invention. It is a top view of the magnetic body used for the electric power generation in FIG. It is a block diagram of the vibration electric power generation unit which concerns on other embodiment of this invention. It is a top view of the magnetic body used for the electric power generation in FIG. It is a front view of the information display apparatus which concerns on other embodiment of this invention. It is a right view in FIG. It is the schematic of the vibration electric power generation unit which concerns on the other embodiment of this invention. It is the schematic of the magnetic body in a large oscillating power generation unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Information display apparatus 10 Display part 11 Display board 13 Illumination unit 14 Support frame 20 Vibration power generation unit 21 Coil 22 Connection wiring 24 Mechanical spring 31 Magnetic body 31a N pole magnetic body 31b S pole magnetic body 31c Magnetic field 32 Magnet 33 Magnetic body 41 Magnetic Body 51 Magnetic body 201 Solar power generator 202 Wind power generator 321 Coil 331 Magnetic body 431 Magnetic body

Claims (4)

A display unit having a display panel for displaying information;
Illuminating means for illuminating the display unit;
A vibration power generation unit that is installed inside the display unit and converts vibration energy into electric power when external vibration is applied;
A power storage device for storing electric power for driving the illumination means;
A post fixed to the ground and supporting the display unit at a position away from the ground ,
The illumination means is driven by electric power generated by the vibration power generation unit, or by electric power generated by the vibration power generation unit and stored in the power storage device,
The vibration power generation unit includes:
A magnet that is disposed within the display unit and generates a magnetic field;
A coil capable of entering and exiting the magnetic field generated by the magnet,
One of the magnet and the coil is fixed to the display unit, and the other is supported by the display unit through an elastic means so as to vibrate,
An information display device characterized in that an induced current by electromagnetic induction is generated by relatively moving the magnet and the coil . The vibration power generation unit is provided so that the relative movement direction of the magnet and the coil is perpendicular to the ground,
The display unit vibrates with vertical vibration of the ground, so that the magnet and the coil move relatively,
The information display device according to claim 1 , wherein an induced current is generated by electromagnetic induction . The vibration power generation unit is provided such that the relative movement direction of the magnet and the coil is horizontal to the ground,
When the display unit vibrates horizontally with wind force, the magnet and the coil move relatively,
The information display device according to claim 1 , wherein an induced current is generated by electromagnetic induction . The illumination means comprises a light emitting diode;
Information display device as claimed in any one of claims 1 to 3 characterized by irradiating from the inside of the panel by the light emitting diode.