JP3163928U - LED traffic signal - Google Patents

Abstract

The present invention provides an LED traffic signal device capable of effectively suppressing snow accretion, icing, frost adhesion, freezing, and the like and obtaining good visibility. An LED traffic signal device comprising a traffic signal body 2 that houses a signal lamp assembly 1 and a gutter 3 provided on the front surface of the traffic signal body 2 so as to cover the upper portion of a lens 103. In the vicinity of the vent hole 105 of the printed circuit board protection cover 104, a far-infrared sheet heating sheet 4A for heating the lens 103 using far-infrared rays is made of a metal thin plate 4B made of steel or stainless steel and an aluminum thin plate 4C. The heat generating plate 4 made of a three-layer laminate sandwiched between and is arranged so that the metal thin plate 4B made of steel or stainless steel is on the side of the vent hole 105, and the ridge 3 is laid using a far infrared ray. 3 is formed of a three-layer laminated structure in which a far-infrared planar heating sheet for heating 3 is sandwiched between thin steel plates made of steel or stainless steel. It is characterized in. [Selection] Figure 2

Description

  The present invention relates to an LED (light-emitting diode) traffic signal device that can effectively prevent snow accretion, icing, and frost adhesion and obtain good visibility.

A traffic signal is an indispensable device for ensuring safety of road traffic and smoothing the flow of traffic.
In Japan, which is long in the north and south, except for the southern countries, the traffic lights have become snowy, icy, or frosty in winter, etc. It is a hindrance to traffic. In particular, during snowfall, there are many obstacles that make it difficult to see the signal lights due to snow and ice pillars that adhere to the fence of traffic lights and hang down, and if one step is mistaken, a major accident occurs.

In the past, snow and icicles that were attached to or dropped from traffic lights installed in snowy areas or at high altitudes were manually removed. It was a work that required a lot of effort.
For this reason, for example, a projecting part is attached to the top of a traffic light, and a circular tube hood with a weight attached to an annular frame is fitted on the top, and the snow is separated and removed by sliding down. A hood snow-snow removal device has been proposed (Patent Document 1).

However, there has been a demand for a traffic signal device that can more effectively suppress snow accretion, icing, frost adhesion, freezing, and the like and obtain good visibility.
In particular, LED traffic signals that have been introduced in recent years are excellent in energy efficiency and low power consumption, but because they generate less heat than conventional ones, they are less likely to melt snow. There was a problem and there was a need for improvement.

Registered Utility Model No. 3072584

  The present invention has been made to solve the above-described conventional problems, and its object is to effectively suppress snow accretion, icing, frost adhesion, freezing, etc., and obtain good visibility. It is to provide an LED traffic signal that can be used.

That is, in the present invention according to claim 1, a plurality of LEDs are arranged on a printed circuit board, a lens is mounted in front of the LEDs, and a printed circuit board protection cover having a vent hole is provided at the rear of the printed circuit board. An LED signal light assembly provided;
A traffic signal body housing the signal light assembly therein;
A hook provided on the front surface of the traffic signal body so as to cover the upper portion of the lens;
LED traffic signal with
In the traffic signal body, near the vent hole of the printed circuit board protective cover,
A heating plate composed of a three-layer laminate in which a far-infrared sheet heating sheet for heating the lens using far-infrared light is sandwiched between a steel sheet or a steel sheet made of stainless steel and an aluminum sheet, Or arrange so that a metal thin plate made of stainless steel is on the vent hole side,
The kite is formed of a three-layer laminated structure in which a far-infrared sheet heating sheet for heating the kite using far infrared rays is sandwiched between thin steel plates made of steel or stainless steel. An LED traffic signal is provided.
The present invention according to claim 2 provides the LED traffic signal device according to claim 1, wherein the far-infrared sheet heating sheet is obtained by laminating a heating element impregnated with a nanocarbon coating material with an insulating sheet. It is.
The present invention according to claim 3 provides the LED traffic signal device according to claim 1 or 2, wherein the far-infrared planar heating sheet generates heat by energization from an AC power source.
The present invention according to claim 4 is the invention according to claim 1 or 2, wherein the far-infrared planar heating sheet generates heat by energization from a rechargeable battery storing electric power obtained by a photovoltaic power generation panel. An LED traffic signal is provided.

The LED traffic signal device of the present invention can effectively prevent snow accretion, icing, frost adhesion, freezing, and the like, and obtain good visibility.
That is, according to the present invention, the far-infrared planar heating sheet generates heat, emits far-infrared rays, warms the kite and LED signal lamp, and adheres to the kite or falls down from the kite, such as snow and icicles. It is possible to remove snow, icing and frost, and to suppress (prevent) their adhesion, and to obtain good visibility.
In particular, if the far-infrared sheet heating sheet is heated by energization from a rechargeable battery (DC power supply) that stores the power obtained from a solar power generation panel, which is clean energy, it must match the environment and energy saving. Become.
Therefore, according to the present invention, it can be effectively used to ensure traffic safety and smooth traffic flow.

It is a perspective view showing one mode of the present invention. FIG. 2 is a sectional view taken along line XX in FIG. 1. FIG. 2 is an exploded explanatory view of FIG. 1. It is explanatory drawing which shows an example of the "three-layer laminated body" which pinched | interposed the far-infrared planar heat generating sheet 4A with the steel thin plate 4B made from steel or stainless steel, and the aluminum thin plate 4C. It is explanatory drawing which shows one example of the "three-layer laminated structure 5" which pinched | interposed the far-infrared planar heat generating sheet 5A with the metal thin plate 5B made from steel or stainless steel. The far-infrared planar heat generating sheet 4A in the “three-layer laminate” constituting the heat generating plate 4 by the energization from the rechargeable battery (battery) 7 storing the electric power obtained by the solar power generation panel 6 and the bag 3 It is explanatory drawing which shows the LED traffic signal A of the system which heats the far-infrared planar heating sheet | seat 5A in the three-layer laminated structure to form.

The present invention relates to an LED traffic signal,
An LED signal light assembly in which a large number of LEDs are arranged on a printed circuit board, a lens is mounted in front of the LEDs, and a printed circuit board protective cover having a vent hole is provided behind the printed circuit board;
A traffic signal body housing the signal light assembly therein;
A hook provided on the front surface of the traffic signal body so as to cover the upper portion of the lens;
LED traffic signal with
In the traffic signal body, near the vent hole of the printed circuit board protective cover,
A heating plate composed of a three-layer laminate in which a far-infrared sheet heating sheet for heating the lens using far-infrared light is sandwiched between a steel sheet or a steel sheet made of stainless steel and an aluminum sheet, Or arrange so that a metal thin plate made of stainless steel is on the vent hole side,
The kite is formed of a three-layer laminated structure in which a far-infrared sheet heating sheet for heating the kite using far infrared rays is sandwiched between thin steel plates made of steel or stainless steel. To do.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional explanatory view taken along the line XX of FIG. FIG. 3 is an exploded explanatory view of FIG.

In the figure, symbol A is the LED traffic signal device of the present invention.
The LED traffic signal A according to the present invention includes an LED signal lamp assembly 1, a traffic signal body 2, and a gutter 3, and is characterized by its internal structure.

In general, a traffic signal device is a device that indicates a signal such as a progress / stop signal in order to ensure traffic safety on a road or a railroad or to smooth a traffic flow.
The LED traffic signal A is not particularly limited as long as it is a traffic signal such as a road traffic signal or a railroad traffic signal. Examples of the traffic signal for roads include a traffic signal for vehicles, a traffic signal for pedestrians, a traffic signal for bicycles, and a traffic signal for trams.
The shape of the LED traffic signal A may be a vertical traffic signal or a horizontal traffic signal.

  In the figure, an LED traffic signal device composed of one LED / lens (ie, one signal light) is shown, but the present invention is not limited to this. For example, a red signal, a yellow signal, and a blue signal 3 It may be composed of a signal light of two colors, such as a signal light of a color or a signal light for a pedestrian.

An LED signal light assembly (assembled part) 1 constituting the LED traffic signal A of the present invention has a printed circuit board 101, an LED 102, a lens 103, and a printed circuit board protective cover 104.
Specifically, the LED signal light assembly 1 has a large number of LEDs 102 arranged circumferentially on a printed circuit board 101, a lens 103 is mounted in front of the LED 102, and a vent hole 105 is disposed behind the printed circuit board 101. Is provided with a printed circuit board protective cover 104. The vent hole 105 is provided in the printed circuit board protective cover 104 for heat dissipation.
As such an LED signal lamp assembly 1, a commonly used one can be used.
The printed circuit board protection cover 104 is usually made of steel or stainless steel, but may be made of plastic as necessary.

The traffic signal body 2 is a housing that accommodates the LED signal lamp assembly 1 as described above, and has a substantially square shape with rounded corners as seen from FIG. 1 when viewed from the front, for example. Of course, it is not limited to this, You may have a different shape by the kind etc. of LED traffic signal.
The traffic signal body 2 is usually made of aluminum or stainless steel, but the cage 3 may be made of plastic.

Further, the LED traffic signal A shown in FIG. 1 has a substantially inverted U-shaped ridge 3 when viewed from the front. However, the shape of the ridge is not necessarily limited to this.
The substantially inverted U-shaped ridge 3 is found in many traffic signals. However, in the present invention, the ridge portion is slightly shorter and has excellent visibility. The substantially inverted U-shaped ridge 3 is provided on the front surface of the traffic light body 2 so as to cover the upper portion of the lens 103 of the LED signal lamp assembly 1.

The LED traffic signal device of the present invention is an LED traffic signal device comprising the LED signal light assembly 1, the traffic signal body 2, and the eaves 3 as described above.
A far-infrared sheet heating sheet 4A for heating the lens 103 using far-infrared rays is made of steel or stainless steel in the traffic signal body 2 and in the vicinity of the vent hole 105 of the printed circuit board protective cover 104. The heat generating plate 4 made of a three-layer laminate sandwiched between the metal thin plate 4B and the aluminum thin plate 4C is disposed so that the steel or stainless steel metal thin plate 4B is on the vent hole 105 side.
The cage 3 is formed by a three-layer laminated structure 5 in which a far-infrared sheet heating sheet 5A for heating the cage 3 using far infrared rays is sandwiched between thin steel plates 5B made of steel or stainless steel. It is characterized by that.

That is, the LED traffic signal of the present invention is
A far-infrared sheet heating sheet 4A for heating the lens 103 using far-infrared rays is made of steel or stainless steel in the traffic signal body 2 and in the vicinity of the vent hole 105 of the printed circuit board protective cover 104. The heat generating plate 4 made of a three-layer laminate sandwiched between the metal thin plate 4B and the aluminum thin plate 4C is disposed so that the metal thin plate 4B made of steel or stainless steel is on the air vent 105 side,
The cage 3 is formed by a three-layer laminated structure 5 in which a far-infrared sheet heating sheet 5A for heating the cage 3 using far infrared rays is sandwiched between thin steel plates 5B made of steel or stainless steel. is doing.

  In the case of using an existing LED traffic signal device including the LED signal light assembly 1, the traffic signal body 2, and the eaves 3, it is in the traffic signal body 2 and in the vicinity of the vent hole 105 of the printed circuit board protection cover 104. In addition, the heat generating plate 4 as described above is disposed, and, as described above, the far-infrared sheet heating sheet 5A for heating the reed 3 using far infrared rays is made of steel or stainless steel. What is necessary is just to replace | exchange for the cage | basket formed with the three-layer laminated structure 5 pinched | interposed with the metal thin plates 5B made from steel.

  Here, the heat generating plate 4 made of a three-layer laminate is made of a steel sheet or a stainless steel sheet metal plate 4B and an aluminum sheet plate 4C made of a far infrared sheet heating sheet 4A for heating the lens 103 using far infrared rays. The “three-layer laminate” sandwiched between and is molded into a predetermined shape (in the figure, a quadrangular shape when viewed from the front).

The far-infrared planar heating sheet 4A is for heating the lens 103 using far-infrared rays. Unlike the heat conduction heating by the heating wire or the like, the heating by the far infrared sheet heating sheet 4A is the heat ray propagation heating by the far infrared ray, and therefore only through the vent hole 105 provided in the printed circuit board protective cover 104. In addition, even through the printed circuit board protective cover 104 itself, the lens 103 has a function of far-infrared rays, which has a greater effect of preventing visual interference due to snow / icing, frost adhesion, freezing, and the like. Even if the printed circuit board protective cover 104 is not made of steel or stainless steel, but is made of plastic, about 50% of the steel or stainless steel made of far infrared rays can be passed. I know it.
Specifically, as the far-infrared planar heat generating sheet 4A, a heating element impregnated with a nanocarbon paint in a cloth and laminated with an insulating sheet (planar heating element) is used. This is a thin and soft sheet-like heater having a thickness of about 0.8 mm.

As shown in FIG. 4, the far-infrared sheet heating sheet 4A forms a “three-layer laminate” sandwiched between a thin metal plate 4B made of steel or stainless steel and an aluminum thin plate 4C. The heat generating plate 4 composed of the “three-layer laminate” is arranged in the traffic signal main body 2 such that the steel or stainless steel thin metal plate 4B is on the vent hole 105 side.
The aluminum thin plate 4C has a meaning as a heat insulating plate, and far infrared rays irradiated from the far-infrared sheet heating sheet 4A pass through the metal thin plate 4B made of steel or stainless steel in the first layer and move forward. The printed circuit board protective cover 104 is intensively oriented in the direction of the vent hole 105.

The far-infrared sheet heating sheet 4A is converted and irradiated with far-infrared rays with a far-infrared radiation rate of 95% or more by a current from a power source as described below, and therefore consumes less power. Furthermore, since this far-infrared planar heating sheet 4A is thin and soft, it can be bent freely. Since the maximum surface temperature of this far-infrared sheet heating sheet 4A is 30 to 35 ° C., it is safe.
Far-infrared rays generated from the far-infrared planar heating sheet 4A are safe and safe far-infrared rays having a wavelength of 6 to 12 μm and no harmful electromagnetic waves.

This far-infrared sheet heating sheet 4A is cut into an appropriate size, electrodes are provided at both ends, and this is connected to a power source to emit far-infrared rays and only through the vent hole 105 provided in the printed circuit board protective cover 104. In addition, the lens 103 can be warmed through the printed circuit board protective cover 104 itself.
In use, the far-infrared planar heating sheet 4A is excellent in durability and requires less maintenance cost.

Further, in the present invention, the far-infrared sheet heating sheet 5A for heating the saddle 3 using far-infrared rays as shown in FIG. 5 is made of steel or stainless steel. The three-layer laminated structure 5 is sandwiched between the thin plates 5B.
Here, the far-infrared planar heating sheet 5A used for the “three-layer laminated structure 5” is the same as the far-infrared planar heating sheet 4A used for the heating plate 4 composed of the three-layer laminate as described above. .
Therefore, by forming the flange 3 with the “three-layer laminated structure 5” in which the far-infrared sheet heating sheet 5A is sandwiched between the metal thin plates 5B made of steel or stainless steel, electrodes are provided at both ends, By connecting this to a power source, far infrared rays can be emitted and the basket 3 itself can be warmed.

In the present invention, the far-infrared sheet heating sheet 5A has a “three-layer structure laminate 5” sandwiched between steel or stainless steel thin metal plates 5B on both sides when viewed from the front. It is formed in a substantially inverted U-shaped ridge 3.
By using the form of “three-layer structure laminate 5” in which the both sides of the far-infrared sheet heating sheet 5A are sandwiched between thin steel plates 5B made of steel or stainless steel, the far-infrared sheet heating sheet 5A hangs down, Short circuit can be prevented.
The metal thin plate 5B is a thin plate made of steel or stainless steel. Although the thickness of the metal thin plate 5B is not specifically limited, Usually, it is about 1-2 mm.

Examples of the power source for the far-infrared sheet heating sheet 4A and the far-infrared sheet heating sheet 5A include direct current (DC) 12V or 24V in addition to alternating current (AC) 100V or 200V.
That is, the far-infrared planar heating sheet 4A and the far-infrared planar heating sheet 5A may generate heat when energized from an AC power supply, or may be obtained from a solar power generation panel that is clean energy, for example. It may generate heat by energization from a rechargeable battery (DC power supply) that stores electric power. In the latter case, maintenance is free. In either case, the specifications and mounting positions of the far-infrared sheet heating sheet 4A and the far-infrared sheet heating sheet 5A are the same.
FIG. 6 shows the far-infrared surface heat generation in the “three-layer laminate” constituting the heat generating plate 4 by energization from the rechargeable battery (battery) 7 storing the electric power obtained by such a solar power generation panel 6. It is explanatory drawing which shows the LED traffic signal apparatus A of the system which heats the sheet | seat 4A and the far-infrared planar heating sheet | seat 5A in the three-layer laminated structure which forms the eaves 3. FIG.

3 is an exploded view of the LED traffic signal device of the present invention shown in FIG.
FIG. 3 shows that the traffic signal body 2 is formed by integrating the traffic signal front cover 2A and the traffic signal back cover 2B.
First, the hook 3 is attached to the front upper portion of the traffic signal front cover 2A.
Next, the LED signal lamp assembly 1 is accommodated inside the traffic signal body 2, that is, between the traffic signal front cover 2A and the traffic signal back cover 2B in FIG. The lens 103 of the LED signal lamp assembly 1 is protruded from the gap 201 provided in the traffic signal front cover 2A.
Further, a far-infrared surface for heating the lens 103 using far-infrared rays inside the traffic signal body 2 and in the vicinity of the vent hole 105 of the printed circuit board protective cover 104 and on the front surface of the traffic signal back cover 2B. A heat generating plate 4 made of a three-layer laminate in which a sheet-shaped heat generating sheet 4A is sandwiched between a steel thin plate 4B made of steel or stainless steel and an aluminum thin plate 4C is disposed.

In the present invention, the auxiliary heat generating plate 9 is further attached to the upper surface 202 of the traffic signal body 2, thereby further removing snow, icing and frost, or suppressing (preventing) their adhesion, Good visibility can be obtained.
This auxiliary heat generating plate 9 is the same as the “three-layer laminated structure 5” forming the flange 3 and sandwiching the far-infrared sheet heat generating sheet 5A between the thin metal plates 5B made of steel or stainless steel. It is formed with.

  Although a sensor for detecting snow / icing or frost adhesion can be provided, a bimetal thermostat 10 is usually used. The bimetal thermostat combines a temperature sensor and automatic temperature control. Using such a bimetal type thermostat 10, for example, when the temperature is lowered to 5 ° C. or lower, the power is turned on to generate heat, and when the temperature is set to 15 ° C., the power is turned off. Otherwise, it will be energy-saving without energization. As shown in the figure, the thermostat 10 is attached to the inside of the cage 3.

  If such an LED traffic signal A of the present invention is installed in a snowy area or a high altitude, for example, when the temperature falls, for example, when the temperature falls below 5 ° C, the bimetal thermostat 10 works. When the power is turned on, the far-infrared sheet heating sheet generates heat, radiates far-infrared rays, warms not only the kite but also the LED signal lights, and removes snow and icicles that adhere to the kite or hang down from the kite. It is possible to remove snow accretion, icing, and frost, or to prevent (prevent) their adhesion and obtain good visibility. When the temperature rises, for example, when the temperature reaches 15 ° C., the power is turned off.

  Therefore, according to the present invention, it is possible to provide an LED traffic signal capable of effectively suppressing snow accretion, icing, frost adhesion, freezing, etc., and obtaining good visibility. It can be used effectively to ensure traffic safety and smooth traffic flow.

A: Traffic signal 1: LED signal light assembly 101: Printed circuit board 102: LED
DESCRIPTION OF SYMBOLS 103: Lens 104: Printed circuit board protective cover 105: Air vent 2: Traffic signal body 2A: Traffic signal front cover 2B: Traffic signal back cover 201: Air gap 202: Upper surface of traffic signal body 3: 庇 4: Heat generation plate 4A: Far-infrared surface heat generation Sheet 4B: Metal thin plate 4C: Aluminum thin plate 5: Three-layer laminated structure 5A: Far-infrared sheet heating sheet 5B: Metal thin plate 6: Solar power generation panel 7: Rechargeable battery (battery)
8: Signal lamp mounting frame 9: Heating plate for auxiliary 10: Thermostat

Claims (4)

An LED signal light assembly in which a large number of LEDs are arranged on a printed circuit board, a lens is mounted in front of the LEDs, and a printed circuit board protective cover having a vent hole is provided behind the printed circuit board;
A traffic signal body housing the signal light assembly therein;
A hook provided on the front surface of the traffic signal body so as to cover the upper portion of the lens;
LED traffic signal with
In the traffic signal body, near the vent hole of the printed circuit board protective cover,
A heating plate composed of a three-layer laminate in which a far-infrared sheet heating sheet for heating the lens using far-infrared light is sandwiched between a steel sheet or a steel sheet made of stainless steel and an aluminum sheet, Or arrange so that a metal thin plate made of stainless steel is on the vent hole side,
The kite is formed of a three-layer laminated structure in which a far-infrared sheet heating sheet for heating the kite using far infrared rays is sandwiched between thin steel plates made of steel or stainless steel. LED traffic signal.   2. The LED traffic signal device according to claim 1, wherein the far-infrared planar heat generating sheet is obtained by laminating a heating element impregnated with a nanocarbon paint into a cloth with an insulating sheet.   The LED traffic signal device according to claim 1 or 2, wherein the far-infrared planar heat generating sheet generates heat by energization from an AC power source.   The LED traffic signal device according to claim 1 or 2, wherein the far-infrared planar heat generating sheet generates heat by energization from a rechargeable battery storing electric power obtained by a solar power generation panel.

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