JP6385239B2 - Illuminated panel - Google Patents

Description

The present invention relates to a structure of an electric decoration panel, more specifically, to an electric decoration panel structure characterized by a heat dissipating structure portion of the electric decoration panel in which an LED light emitting element and an IC chip are continuously arranged.

  The lighting panel itself with a built-in illuminant has existed for a long time. Since it has a light emitter itself, it can be seen even at night, and is also an important advertising medium.

  Since LED light emitting elements have recently been used cheaply and easily, various forms of light emission have been proposed and implemented, and it is no longer as expensive as the former neon sign. There are even cases where electrical panels are used in the scene of enjoying the decoration.

A typical example of the lighting panel itself is that a light emitting body is arranged outwardly in a rectangular parallelepiped having a thickness of several tens to several tens of centimeters. It can be confirmed by reflected light. In that case, monochromatic light is often used.
In addition to this, various methods have been proposed in which the surroundings of the description to be appealed are bordered with light. In this case, there are also commercially available ones that use various colors instead of monochromatic light and that can be changed automatically or manually, and those that blink instead of staying on.

JP 2004-361628 A

In this way, the light emission by the LED, the change of the emission color, the change and control of the blinking time, etc. are processed by a component called an IC chip and transmitted to the LED light emitting element. Made in As is well known, an LED light emitting element hardly generates heat even when energized, but an IC chip easily generates heat. Therefore, if the heat radiation is not performed properly, it may malfunction or cause disconnection or fire.
Further, since the heat generation amount of the IC chip increases as the signal processing becomes complicated, it is difficult to give a complicated light emission pattern to the LED, and as a result, the change of the light emission pattern has to be poor.

In order to cope with the heat generation of the IC chip, a method called a heat sink is adopted in which a material having high thermal conductivity is brought into contact with the heat generation portion and the temperature is lowered by heat dissipation. In order to improve the performance of the heat sink, it is necessary to increase the surface area. Therefore, usually, plates and rods called fins are formed into a sword mountain shape or a bellows shape.
However, the electrical panel is often only a few centimeters thick, and there are many cases where it is not possible to secure a space for storing the fins.

Therefore, the present inventor has finally made the present invention as a result of intensive studies in view of these points, and the feature thereof is that it has a panel base and a transparent body surrounding the peripheral surface of the panel base. An LED tape body, which is a panel and has an air gap between the outer peripheral portion of the panel base and the peripheral portion of the transparent body, and in which LED light emitting elements and IC chips are arranged in order, has a radially outward direction as an irradiation direction. It is arranged on the peripheral surface side of the panel base so as to be fitted around the gap so as to circulate, and the back surface of the panel is fitted on the inner peripheral surface of the LED tape from the gap and contacts the IC chip. And a heat radiating plate formed by a heat radiating portion that is a portion along the back surface of the panel, and the heat absorbing portion and the heat radiating portion are integrated in a T-shaped cross section .

  That is, in this invention, this electrical decoration panel has the LED light emitting element which makes an irradiation direction radial outward. Therefore, the direction in which the light is irradiated is not suitable for those who observe this panel from the front. (It should be noted that the electrical decoration panel of the present invention has an LED light-emitting element whose irradiation direction is a radially outward direction, and the light-emitting element irradiated in the front direction simultaneously with such a light-emitting element. Does not deny having

Since the LED tape body installed on the base circulates in the radial outward direction as the irradiation direction, the front and back surfaces of the tape body are in a positional relationship of being perpendicular to the front surface or the back surface of the panel body. Therefore, it also means that the heat radiating plate in surface contact with the IC chip arranged on the tape body is also in a positional relationship of being perpendicular to the front surface or the back surface of the panel body.
In the present invention, this right-angled portion corresponds to the panel thickness. As described above, the panel thickness is often several centimeters, and it is difficult to secure a sufficient space for heat dissipation.
Therefore, the back surface is bent at right angles (that is, 90 ° and 270 °) to have a T-shaped cross section, which is the greatest feature of the present invention. The vertical bar part of “T” fits into the gap between the base and the transparent body, and the horizontal bar part of “T” follows along the back of the panel. As a function, the vertical bar part emits the IC chip. The amount of heat is absorbed, and the horizontal bar portion dissipates the amount of heat. The vertical bar portion is referred to as a heat absorbing portion, and the horizontal bar portion is referred to as a heat radiating portion.
The material of the heat sink is not particularly limited, but aluminum, copper, brass, etc. are suitable materials in the present invention.

The inventor has conducted various experiments in search of a structure for radiating heat, but initially the heat radiating plate has a structure of only the vertical bar portion (that is, the heat absorbing portion) . In this case, by increasing the thickness of the heat sink, a certain degree of effect was obtained in the case of short-time operation, but it cannot be used for a long time, and a complicated light emission pattern can be obtained. When the treatment was performed, only a very insufficient effect was obtained.

  Next, the present inventor tried and experimented with a heat sink that was bent at a right angle on the back surface to have a cross-sectional “L” shape. Then, a much higher effect was obtained. However, this was not enough and was not satisfactory. It can be said that the intended purpose has been achieved only when the cross section has a “T” shape.

  In addition, when the LED tape body in which the LED light emitting element and the IC chip are arranged in order is rotated around the radial outward direction as the irradiation direction, a transparent body exists on the periphery of the base, and thus the emitted light is transparent. It penetrates the body part and goes out from the end face. Then, if the end surface of a transparent body is processed into frosted glass, for example, it will diffusely reflect in an end surface part and the reflected light can be visually recognized from the front. In appearance, the light source appears to be in the ground glass. However, there is a transparent body between the ground glass-like part and the base part, and since there are no wires or other parts in or through this transparent body, understand what principle emits light It can't be done and gives the impression that it is a mysterious lighting panel. Therefore, this mystery leads to a high appealing effect.

  In addition, about the LED tape body and controller which are employ | adopted for the electrical decoration panel which concerns on this invention, it does not limit at all and you may utilize the typical thing marketed. It is another object of the present invention to efficiently diffuse the heat generated by the IC chip even if the light emission pattern is increased or complicated, but this does not mean that the light emission pattern must be increased or complicated. . Therefore, even if the light emission is multicolored, it is not an absolute condition.

An LED tape body is fixed to the base. A transparent body is disposed on the periphery of the base. And since this base is a part corresponded to a center part when an electrical decoration panel is seen from the front, it is not limited in this invention, For example, a poster, a picture, etc. will be installed in this part. Therefore, they may be made of a material that transmits light to some extent and lighted up from the back side. In this case, if the LED tape body is used, the light irradiation direction of the LED light emitting element is “inward” instead of radially outward.

The present invention is a panel having a panel base and a transparent body surrounding the peripheral surface of the panel base, and there is a gap between the outer peripheral part of the panel base and the peripheral part of the transparent body, An LED tape body in which an LED light emitting element and an IC chip are arranged in order is arranged on the peripheral surface side of the panel base so as to fit in the gap so as to circulate radially outward. On the back surface, a heat sink formed by a heat absorbing portion that fits into the inner peripheral surface of the LED tape from the gap and contacts the IC chip and a heat radiating portion that is a portion along the back surface of the panel is provided, The heat-absorbing part and the heat-dissipating part are integrated in a T-shaped cross section , which is an extremely advanced invention having the following effects.

(1) Since the heat generated by the IC chip can be effectively dissipated, the risk of malfunction or breakage is reduced even as an electrical decoration panel having a complex color pattern.
(2) Since the heat radiating plate has a T-shaped cross section, it can be easily adopted even if it is an electric decoration panel that is not often thick.

It is a general | schematic disassembled perspective view which shows an example of the electrical decoration panel which concerns on this invention. It is a schematic sectional drawing which shows a part of example of the electrical decoration panel which concerns on this invention.

FIG. 1 shows an example of an electrical decoration panel 1 (hereinafter referred to as the present invention panel 1) according to the present invention. This figure is a schematic exploded perspective view showing a state in which the panel 1 of the present invention is viewed from the back side. As is apparent from the figure, the present invention panel 1 of this example has a base 2, an LED tape body 3, a transparent body 4, and a heat sink 5.
The transparent body 4 has a structure surrounding the periphery of the base 2, but the inner peripheral surface of the transparent body 4 and the outer peripheral surface of the base 2 are separated from each other, and almost all of the LED tape body 3 is in the gap. A part of the heat sink 5 is stored. Further, the back side outer peripheral ridge line portion of the transparent body 4 is chamfered to form a slope 41. The surface of the slope 41 is roughened into a ground glass shape.

  The LED tape body 3 is formed by sequentially arranging an LED light emitting element 31 and an IC chip 32, and there are a control board, a power cord, and the like at the end, but they are not shown in the figure. .

The heat radiating plate 5 is a member that covers the entire gap between the inner circumferential surface of the transparent body 4 and the outer circumferential surface of the base 2 and is partially fitted into the gap. It has a T-shaped cross section and includes a heat radiating portion 51 and a heat absorbing portion 52. As a function, the heat of the IC chip absorbed by the heat absorbing portion 52 is released from the heat radiating portion 51 to the outside, and therefore the heat absorbing portion 52 is in contact with the back surface of the LED tape body 3.
In the figure, the heat radiating plate 5 is formed by connecting four straight members, but is not limited thereto.

FIG. 2 is a sectional view showing a part of the panel 1 of the present invention. It is clear that the base 2 and the transparent body 4 are not in contact with each other and that a gap 7 is provided, and that the right-angled portion 52 of the LED tape body 3 and the heat sink 5 is accommodated in the gap 7. ing.
The light emitted from the LED light emitting element 31 of the LED tape body 3 is directed from the base 2 toward the transparent body 4, passes through the transparent portion, hits the inclined surface 41, and is irregularly reflected here. The observer cannot recognize the light beam passing through the transparent body and recognizes only the irregularly reflected light.
In addition, since it is not preferable that an observer visually recognizes an actual light source, it is preferable to cover the gap 7 portion between the base 2 and the transparent body 4 with the covering body 6 from the front side of the panel 1 of the present invention. In this example, an aluminum foil tape with an adhesive was used as the covering 6.

DESCRIPTION OF SYMBOLS 1 Electric decoration panel 2 Base 3 LED tape body 31 LED light emitting element 32 IC chip 4 Transparent body 41 Slope 5 Radiation plate 51 Heat radiation part 52 Heat absorption part 6 Covering part
7 gap

Claims (3)

A panel having a panel base and a transparent body surrounding the peripheral surface of the panel base, and there is a gap between the outer peripheral part of the panel base and the peripheral part of the transparent body, An LED tape body in which IC chips are arranged in order is arranged on the peripheral surface side of the panel base so as to fit in the gap so as to circulate with the radial outward direction as the irradiation direction. A heat sink formed by a heat absorbing portion that fits into the inner peripheral surface of the LED tape from the gap and contacts the IC chip and a heat radiating portion that is a portion along the back surface of the panel is provided, and the heat absorbing portion and the heat absorbing portion The heat dissipating part is integrated in a T-shaped cross section . The electric panel according to claim 1, wherein the heat radiating plate is made of aluminum, copper, or brass. 3. The electrical decoration panel according to claim 1, wherein the back surface side outer peripheral ridge line portion of the transparent body is chamfered to form a slope, and the slope is roughened into a ground glass shape. 4.

Images