JP6896256B2 - Energy-reduced light emitting braille block - Google Patents

Description

The present invention relates to an energy- reduced light emitting Braille block.

Braille blocks are blocks having irregularities on the surface so that visually impaired people can easily grasp dangerous areas, and are mainly provided on subway movement routes and landings, pedestrian crossings, ramps, stairs, and the like.

Such Braille blocks are usually painted in yellow for easy recognition. However, there is a problem that it is difficult to visually recognize the Braille block, especially in the rainy or snowy weather outdoors at night.

Here, a Braille block has been developed and partially applied so that a light emitter is provided so that it can be easily visually recognized. Such a light emitting Braille block has an LED built in the protruding portion of the Braille block, and the light of this LED is projected to the outside so that a pedestrian can recognize that it is a danger zone where the Braille block exists. ..

In particular, with the recent increase in the use of smartphones, pedestrians do not pay attention to the conditions and traffic lights of surrounding roads, so accidents are increasing while crossing pedestrian crossings. Therefore, there is a demand for a function of providing an LED on a Braille block attached to the entrance of a pedestrian crossing to display the current pedestrian crossing signal.

However, since the conventional light emitting Braille block has LEDs attached to each protruding portion, there is a problem that the number of LEDs installed is large and the power consumption is high.

Therefore, there is a demand for a new light emitting Braille block that can reduce power consumption.

The matters described as the background art are intended to make it easier to understand the background of the present invention, and correspond to the prior art already known to those having ordinary knowledge in the art. It must not be accepted as an admission.

KR10-2009-0125488A (2009.12.07) JP2004-003163A (2004.01.08)

The present invention is for solving the above-mentioned problems, and an object of the present invention is to provide an energy-reduced light-emitting Braille block that can be applied both day and night and consumes less power.

The energy-reducing light-emitting Braille block according to an embodiment of the present invention is a block cover in which a plurality of protrusions through which light can be transmitted are formed on the upper surface; A light emitting module that transmits one or two of light and red light so that the protrusion represents one of green, red, and yellow colors; and between the block cover and the light emitting module. Includes a light-shielding plate that is inserted into and formed in the form of a flat plate made of an opaque material that does not allow light to pass through, and has through holes having a shape corresponding to the shape of the protrusion of the block cover.

In the light emitting module, a plurality of light guide patterns are engraved on the lower surface, and a flat plate-shaped refracting portion formed of a material that transmits light; provided on one side surface of the refracting portion, and green inside the refracting portion. A light emitting unit that irradiates one or two of the light and the red light; and a reflecting plate that is provided on the lower surface of the refracting unit and reflects the light emitted from the light emitting unit; The more irradiated light is scattered by the light guide pattern and can be transmitted to the protrusion.

The light emitting portion includes a plurality of first light emitting elements that generate green light alternately arranged along one side corner of the refracting portion; and a plurality of second light emitting elements that generate red light; And the refracting portion so as to be able to release the heat generated by the first light emitting element and the second light emitting element to the outside and prevent the light generated by the light emitting element from being transmitted to the side surface of the refracting portion. It can include a radiator plate provided along the corner of the.

The refracting portion is formed by laminating a first plate and a second plate having a light guide pattern engraved on the lower surface thereof, and the heat radiating plate wraps a part of the side surface and the upper and lower surfaces of the refracting portion. The first light emitting element and the second light emitting element are provided in the central portion inside the heat sink, and the first light emitting element and the second light emitting element are provided. The inside of the heat radiating plate is filled with a transparent resin, and the first light emitting element and the second light emitting element can be sealed.

By using the energy-reducing light-emitting Braille block according to the embodiment of the present invention, the Braille block is lit in green, red, and yellow using less energy, so that the Braille block is effective for pedestrians regardless of the weather during the day and night. Can be recognized as a target.

FIG. 3 is a perspective view of an energy-reducing light emitting Braille block according to an embodiment of the present invention. An exploded perspective view of an energy-reducing light emitting Braille block according to an embodiment of the present invention. Sectional view of the light emitting module. Side sectional view and top view of the refracting part. The drawing which shows the light emitting element provided in the heat sink.

Hereinafter, the energy-reduced light emitting Braille block according to the preferred embodiment of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the examples described below, and may be embodied in various forms that differ from each other, and the following description is provided to fully inform the scope of the invention.

The energy-reducing light-emitting Braille block 10 according to an embodiment of the present invention has a block cover 100 in which a plurality of protrusions 112 capable of transmitting light are formed on the upper surface, and protrusions provided inside the block cover 100. Light emission module 200 and block cover 100 and light emission that transmit one or two of green light and red light to 112 so that the protrusion 112 represents one of green, red, and yellow colors. Includes a shading plate 300 that is inserted between modules 200 and is formed in the form of a flat plate of opaque material that does not transmit light, and has through holes 310 having a shape corresponding to the shape of the protrusion 112 of the block cover 100. It is composed.

The block cover 100 includes a block-shaped upper case 110 whose lower side is open and a block-shaped lower case 120 whose upper side is open, and is formed by combining such an upper case 110 and a lower case 120. A light emitting module 200 and a light shielding plate 300 are provided in the internal space.

The upper case 110 is formed by including a block-shaped base portion 111 and a plurality of protrusions 112 formed so as to project from the upper surface of the base portion 111, and the light generated by the light emitting module 200 emits the protrusions 112. It is preferable that at least the protrusion 112 is made of a material capable of transmitting light so that light can be transmitted.

At this time, the base portion 111 and the protrusion 112 can be integrally formed by the upper case 110 for the convenience of manufacturing. In this case, the base portion 111 and the protrusion 112 may be made of a material capable of transmitting light as a whole.

The hues of the base portion 111 and the protrusion 112 are preferably a yellowish color like a general Braille block, and are preferably formed semitransparently so as not to directly irradiate too strong light.

The lower case 120 is usually buried under the ground, and the material and form thereof are not particularly limited, but preferably, the lower case 120 is formed in an opaque black hull shape and transmits light through the lower case 120. Should be minimized.

The shape of the protrusion 112 may be formed in, for example, a hemispherical shape, a cylindrical shape, a truncated cone shape, a rod shape, or the like, or may be deformed as necessary. It is preferable that the surface of the protrusion 112 is further formed with irregularities in order to prevent sliding.

The light emitting module 200 is provided inside the block cover 100 and transmits light to the protrusions 112 of the block cover 100 so that the protrusions 112 shine in various hues. The light emitting module 200 selectively generates one or two of green light and red light, thereby transmitting green, red, and yellow light in which green and red are combined to the protrusion 112. Make the protrusion 112 glow green, red and yellow.

On the other hand, in order to prevent the light generated by the light emitting module 200 from being transmitted to a place other than the protrusion 112 of the block cover 100, it is preferable to separately provide a light shielding plate 300 between the block cover 100 and the light emitting module 200. More precisely, the light-shielding plate 300 is provided between the lower side surface inside the upper case 110 and the upper side surface of the light emitting module 200.

The light-shielding plate 300 is made of an opaque material capable of blocking the light generated by the light emitting module 200, and a plurality of through holes 310 having a shape corresponding to the protrusion 112 of the block cover 100 are formed. Due to the shape of the light-shielding plate 300, the light generated by the light emitting module 200 is emitted only to the through-hole 310 formed in the light-shielding plate 300, and thus only the protrusion 112 formed at the position corresponding to the through-hole 310. Is irradiated with light, and only the protrusion 112 of the block cover 100 shines.

Looking at the light emitting module 200 in more detail, the light emitting module 200 has a flat plate-shaped refracting portion 210 and a refracting portion 210 in which a plurality of light guide patterns 213 are engraved on the lower surface and formed of a material that transmits light. A light emitting unit 220 provided on one side and irradiating one or two of green light and red light inside the refracting unit 210, and a light emitting unit 220 provided on the lower surface of the refracting unit 210 and irradiated from the light emitting unit 220. It is formed including a reflecting plate 230 that reflects light.

The material of the refracting portion 210 is transparent and is not particularly limited as long as it can transmit light, but for example, a plate material made of an acrylic material may be provided.

The light guide pattern 213 formed on the refracting portion 210 is a hemispherical or hemi-elliptical spherical engraved portion, and is formed on the lower surface of the refracting portion 210. The light generated by the light emitting element 221 and radiated to the inside of the refracting portion 210 is scattered at the boundary surface of the light guide pattern 213, and the light scattered in this way passes through the upper side surface of the refracting portion 210 and is blocked. It is transmitted to the protrusion 112 of the cover 100.

A plurality of the light guide patterns 213 are provided so as to form one scattering pattern 214, and such a scattering pattern 214 is formed in a shape corresponding to the shape of the protrusion 112 of the block cover 100. Is preferable. That is, by forming the shape and number of the scattering pattern 214 and the shape and number of the protrusion 112 of the block cover 100 to be the same, the light scattered by each scattering pattern 214 is individually formed on each protrusion 112. To be supplied.

At this time, it is preferable that each scattering pattern 214 is formed with a high density of the light guide pattern 213 in the central portion and a low density of the light guide pattern 213 in the peripheral portion. By making the density of the light guide pattern 213 different in this way, the light scattered by the scattering pattern 214 and transmitted to the protrusion 112 of the block cover 100 can be more concentrated in the center of the protrusion 112. Through this, the protrusion 112 can be effectively made to shine even with a small amount of light.

By scattering the light generated by the light emitting elements integrally installed in this way by the respective scattering patterns 214 and transmitting the light to the protrusions 112, separate lighting fixtures, for example, LEDs can be attached to the protrusions 112 of the block cover 100. it is possible not only to reduce the power consumption compared to providing, LED by can provide a soft scattered light as compared to irradiation of light directly Runode, can transmit signals in a peaceful illumination ..

The refracting portion 210 may be formed in the form of one plate material, but preferably, the refracting portion 210 may be formed by laminating two plate materials composed of the first plate 211 and the second plate 212. At this time, a light guide pattern 213 is formed on the lower surfaces of the first plate 211 and the second plate 212, respectively.

By forming the refracting portion 210 by laminating two plate materials composed of the first plate 211 and the second plate 212 in this way, the refracting portion 210 was scattered by the light guide pattern 213 of the first plate 211 laminated underneath. Since the light is scattered again by the light guide pattern 213 of the second plate 212 on which the light is laminated, uniform and soft light can be created, so that each protrusion 112 of the block cover 100 shines with uniform brightness. Can be done. At this time, it is more preferable that the first plate 211 and the second plate 212 are in close contact with each other.

The light emitting unit 220 is provided on the side surface of the refracting unit 210 and irradiates the refracting unit 210 with light, and at the same time, serves to fix the first plate 211 and the second plate 212 forming the refracting unit 210 in close contact with each other.

The light emitting unit 220 includes a light emitting element 221 composed of a plurality of first light emitting elements 221a for generating green light and a plurality of second light emitting elements 221b for generating red light, and heat generated by the light emitting element 221. Is included in the heat radiating plate 222 provided along the corner of the refracting portion 210 so as to prevent the light generated by the light emitting element 221 from being transmitted to the side surface of the refracting portion 210.

The heat radiating plate 222 is provided at each corner of the refracting portion 210, is formed so as to have a channel-type cross-sectional structure, and accommodates the end portions of the corners of the refracting portion 210 inside. At this time, the heat sink 222 is divided into a first heat sink 222a in which the light emitting element 221 is provided and a second heat sink 222b in which the light emitting element 221 is not provided.

Both the first heat sink 222a and the second heat sink 222b have a channel-type cross section and are formed in the same shape so as to accommodate the corners of the refracting portion 210, but only inside the first heat sink 222a. There is a difference in that the light emitting element 221 is provided. When the refracting portion 210 is formed in the form of a square plate material, a first heat radiating plate 222a is provided at any one of the four corners, and a second heat radiating plate 222b is provided at each of the remaining three corners.

Since the first heat sink 222a and the second heat sink 222b are made of a metal material and have high thermal conductivity, the heat generated by the light emitting element 221 can be effectively discharged and the light reflectance is high. Therefore, it is possible to prevent the light generated by the light emitting element 221 from being transmitted to the outside through the side surface of the refracting portion 210.

The first light emitting element 221a and the second light emitting element 221b are alternately provided inside the first heat radiating plate 222a, and the first heat radiating plate 222a provided with the light emitting element 221 in this way is placed on one side corner of the refracting portion 210. By providing the light, green and / or red light can be transmitted from one side corner of the refracting portion 210.

When the light emitting element 221 is provided inside the first heat radiating plate 222a, the center of the light emitting element 221 is aligned with the center of the refracting portion 210 formed by laminating the first plate 211 and the second plate 212. Is preferable. By matching the heights of the center of the light emitting element 221 and the refracting portion 210 in this way, the light generated by the light emitting element 221 is irradiated to the inside of the refracting portion 210 to the maximum extent.

On the other hand, since the electric circuit of the light emitting element 221 is exposed as it is and is vulnerable to external humidity, the light emitting element 221 is provided inside the first heat radiating plate 222a, and then the transparent resin 223 is filled to form the light emitting element 221. It is preferable to seal it. In addition to this, by applying the resin adhesive 224 to the contact surface between the end of the first heat sink 222a and the refracting portion 210, the first heat sink 222a and the refracting portion 210 are joined, and at the same time, the external moisture is more clearly expressed. Can be blocked.

The reflector 230 has a configuration capable of reflecting light, and may be provided in the form of a reflective film, for example, and may be attached to the lower surface of the refracting portion 210.

The energy-reducing light-emitting Braille block provided as described above, for example, by lighting the same color as the pedestrian crossing signal light, allows pedestrians using smartphones to receive the current pedestrian crossing signal without looking at the pedestrian crossing signal light. It has the effect of preventing accidents by being able to recognize and choose to walk or stop.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, a person having ordinary knowledge in the technical field to which the present invention belongs does not change the technical idea or essential features of the present invention. Can be understood to be implemented in another specific form.

Therefore, it should be understood that the examples described above are exemplary in all respects and are not limiting. The scope of the present invention appears in the claims described later from the detailed description above, and the meaning and scope of the claims and all modifications or modified forms derived from the concept of equality thereof are included in the scope of the present invention. Must be interpreted as included.

10: Energy-reduced light emitting Braille block
100: Block cover 110: Upper case
111: Base 112: Protrusion
120: Lower case 200: Light emitting module
210: Refractive part 211: First plate
212: Second plate 213: Light guide pattern
214: Scattering pattern 220: Light emitting part
221: Light emitting element 221a: First light emitting element
221b: Second light emitting element 222: Heat sink
223: Transparent resin 224: Resin adhesive
230: Reflector 300: Shading plate
310: Through hole

Claims (4)

A block cover with multiple protrusions on the upper surface that allow light to pass through;
Provided inside the block cover to transmit one or two of green light and red light to the protrusion so that the protrusion represents one of green, red, and yellow colors. A through hole that is inserted between the block cover and the light emitting module and is formed in the form of a flat plate made of an opaque material that does not transmit light and has a shape corresponding to the shape of the protrusion of the block cover. An energy-reducing light-emitting Braille block that includes a light-shielding plate formed. The light emitting module
A flat plate-shaped refracting part formed of a material that transmits light and has a plurality of light guide patterns engraved on the lower surface;
A light emitting unit provided on one side surface of the refracting portion and irradiating one or two of green light and red light inside the refracting portion; and a light emitting portion provided on the lower surface of the refracting portion. Includes a reflector that reflects more illuminated light;
The energy-reducing light-emitting Braille block according to claim 1, wherein the light emitted from the light-emitting portion is scattered by the light guide pattern and transmitted to the protrusion. The light emitting unit
A plurality of first light emitting elements that generate green light alternately arranged along one side corner of the refracting portion; a plurality of second light emitting elements that generate red light; and the first light emitting element. Along the corners of the refracting portion so that the heat generated by the element and the second light emitting element can be released to the outside and the light generated by the light emitting element can be prevented from being transmitted to the side surface of the refracting portion. The energy-reducing light-emitting Braille block according to claim 2, further comprising a heat-dissipating plate provided. The refracting portion is formed by laminating a first plate and a second plate having a light guide pattern engraved on the lower surface of each.
The heat sink is formed so as to have a channel-shaped cross section so as to wrap a part of the side surface and the upper and lower surfaces of the refracting portion.
The first light emitting element and the second light emitting element are provided in the central portion inside the heat sink.
3. The third aspect of the present invention is that the inside of the first light emitting element and the heat sink provided with the second light emitting element is filled with a transparent resin to seal the first light emitting element and the second light emitting element. The energy-reducing light-emitting braille block described in.

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