KR20120135616A - A cell type road sign board which the dew is not formed at the led illuminating device - Google Patents

Abstract

PURPOSE: An LED(Light Emitting Diode) internal lighting cell type road sign for preventing dew condensation is provided to prevent the occurrence of a dark portion on the road sign, thereby facilitating the identification of the road sign for a driver. CONSTITUTION: An LED internal lighting cell type road sign(100) for preventing dew condensation comprises a fixing frame(10), a transparent protecting plate(20), a road sign sheet(30), a first hollow frame(40), a luminous board(50), a light spreading part(60), a reflection sheet(70), a rear protecting plate(80), and an air vent(90). The transparent protecting plate is inserted into a receiving part(11) and placed on a hitch projection(12) in the fixing frame. The road sign sheet is attached to the front of the transparent protecting plate and stuck to the hitch projection. The first hollow frame is closely installed at the rear of the transparent protecting plate for forming a first space(41) in the receiving part of the fixing frame. The luminous board is isolatedly placed in the rear of the first hollow frame and equipped with LED(51) and a first through hole(53). The light spreading part is closely installed between the first hollow frame and the luminous board. The light spreading part prevents the occurrence of the dark portion on the road sign sheet by widely spreading the emitted light of the LED. The reflection sheet is attached to the rear of the luminous board for enhancing luminance efficiency and equipped with a third through hole(71) corresponding to the first through hole. The rear protecting plate protects the transparent protecting board, the luminous board, and the light spreading part. The rear protecting plate is isolatedly placed in the rear of the reflection sheet and equipped with a plurality of fourth through holes(85). The air vent is coupled to the fourth through hole of the rear protection plate.

Description

A cell type road sign board which the dew is not formed at the LED illuminating device}

The present invention relates to a cell type road sign for preventing internal condensation of LEDs, and more particularly, a light diffusing portion having a plurality of concave lens-shaped concave portions formed on a front surface of a light emitting board, that is, a portion of which light is blocked by a heat sink. In addition, the light may be transmitted to the road signs located at the edges of the light emitting board, and thus, dark areas may be prevented from occurring on the road signs, thereby facilitating the driver to easily identify the road signs. Forming a space portion, and by forming an air vent connected to the first and second space portion to circulate the outside air to the first and second space portion to eliminate the temperature difference between the inside and outside of the road sign to prevent condensation and frost phenomenon Self-luminous paint table that can reduce manufacturing cost and maintenance cost through simple configuration and heat-free configuration It relates to a plate.

Currently, road signs for directional guidance are provided on roads through which vehicles pass, such as highways and national roads, and road signs are displayed to realize road guidance by displaying letters and symbols on the road signs.

In addition, road signs have condensation, which is caused by dew on road guide signs due to the temperature difference between day and night in the transitional season. When dew drops to below zero at night time, dew condensation freezes. As a result, frost is attached to road signs.

Accordingly, condensation and frost appear on the road signs, which makes them appear cloudy. This reduces the ability of drivers to recognize the text and directions of the information signs. That is, despite the bad weather conditions, there is a problem in that the visibility of the road sign is lowered and thus the actual guide function is lost.

Thus, in order to solve such a problem, a road sign having a structure that attaches a hot wire to the back of the road sign has been proposed in Korean Utility Model Publication No. 002469.

However, such a conventional road sign uses a preheating method, and it is difficult to transfer heat evenly to the surface of the road sign, and heat loss itself is reduced due to heat loss in the process of transferring heat from the back surface of the road sign to the surface. There was a problem of maintaining the temperature of the very high, accordingly, not only a lot of power consumption is required, but also a high risk of fire due to local overheating phenomenon.

In addition, there is a problem in that the attachment portion of the high-brightness reflective paper falls or deforms due to such local heating phenomenon, and in order to prevent heat from leaking to the rear surface where the heating wire is installed, additional insulation means must be additionally installed on the rear surface of the road sign plate. There was a problem that the configuration is complicated.

In addition, the road sign is a surface-emitting lighting means, that is, a number of road signs using a light-emitting board has been applied for a patent, but the situation is not actually commercialized, because the reason is because the size and weight of the light emitting board is limited .

In other words, the size of the road sign is 4,000mm in width and 2,800mm in length, whereas the light emitting board can only be manufactured in width up to 1,200mm and length up to 2,400mm. In order to match the size of the light emitting board to the sign, the light emitting board had to be used as a cell type (cell type) of the checkerboard shape.

However, since the heat sink is installed on the edge of the light emitting board to protect the LED, there is a problem in that light cannot be emitted from the edge of the light emitting board. Accordingly, a dark area is formed on the paint cover sheet so that the driver Often there were difficulties in identifying signs.

The present invention has been invented to solve the above problems, by installing a light diffusing portion formed with a plurality of concave lens-shaped concave portion on the front surface of the light emitting board, that is, the part that is covered by the heat sink, that is, the edge of the light emitting board It is also possible to transmit light to road signs located at, thereby preventing dark spots on the road signs, thereby providing a cell type road sign for preventing condensation inside the LED that enables the driver to easily identify the road signs. .

In addition, the present invention forms the first and second spaces therein, and by forming an air vent connected to the first and second spaces to circulate outside air to the first and second spaces, Condensation and frost can be prevented by eliminating the temperature difference, and the purpose is to provide a cell type road sign for condensation prevention of LED internal lighting that can reduce manufacturing and maintenance costs through simple configuration and heat-free configuration. There is this.

LED interior lighting condensation prevention cell type road sign of the present invention for achieving the above object is a fixing frame forming a receiving portion therein and comprises a locking step; A transparent protective plate inserted into a receiving portion of the fixed frame and protecting the inside from an external impact; A road cover sheet attached to the front surface of the transparent protective plate and installed in close contact with the locking step and displaying a road name; A first hollow frame installed in close contact with a rear surface of the transparent protective plate such that a first space is formed in the accommodation portion of the fixed frame; A plurality of light emitting boards spaced apart from the rear of the first hollow frame and arranged in plurality, wherein the LEDs are installed to emit light and constitute a first through hole penetrating the front and rear surfaces; A second through hole corresponding to the first through hole of the light emitting board is formed to be closely installed between the first hollow frame and the light emitting board, and a plurality of concave lens-shaped recesses are formed on the front to emit light of the LED. Light diffusion unit to prevent the dark portion on the road sign sheet by wide spread; A reflection sheet attached to a rear surface of the light emitting board to enhance light emission efficiency and configured to form a third through hole corresponding to the first through hole; It is coupled to the fixed frame to protect the transparent protective plate attached to the road sign sheet and the light emitting board attached to the reflective sheet and the light diffusion, but the reinforcement protrusion to the front to form a second space portion in the receiving portion to the rear of the reflective sheet A rear protective plate disposed spaced apart from each other and comprising a plurality of fourth through holes; The air vent is coupled to the fourth through hole of the rear protective plate; and the condensation is prevented by the circulation of the air and the outside air of the first and second spaces, and the light emission efficiency is improved.

In the LED display panel of the present invention, the cell-type road sign for preventing condensation of light is provided on the front surface of the light emitting board by installing a light diffusion part formed with a plurality of concave lens-shaped recesses, so that the light is obscured by the heat sink, that is, located at the edge of the light emitting board. Light can also be transmitted to the road signs, which prevents dark areas from occurring on the road signs, thereby allowing the driver to easily identify the road signs.

In addition, since the first and second spaces are formed inside, an air vent connected to the first and second spaces can be configured to circulate outside air to the first and second spaces, thereby eliminating the temperature difference between the inside and the outside of the road sign. It is possible to prevent condensation and frost phenomenon, it is a useful invention that can reduce the manufacturing cost and maintenance cost through a simple configuration and heat-free configuration.

1 is a plan view showing a cell type road sign for preventing condensation inside the LED of the present invention.
Fig. 2 is an enlarged view of a portion A in Fig. 1; Fig.
Figure 3 is a cross-sectional view showing a separate cell type road sign for preventing condensation inside the LED of the present invention.

Hereinafter, the structure of the present invention will be described.

The LED internal lighting condensation prevention cell type road sign 100 of the present invention is installed in the city center or national road through which the vehicle passes, and provides road information to the driver of the vehicle, and guides the direction of the road using letters, figures, and numbers. 1 to 3, the fixed frame 10, the transparent protective plate 20, the road sign sheet 30, the first hollow frame 40, and the light emitting board 50 are illustrated. And a light diffusion unit 60, a reflective sheet 70, a rear protective plate 80, and an air vent 90.

First, the fixed frame 10 has a transparent protective plate 20, a road sign sheet 30, a first hollow frame 40, a light emitting board 50, a light diffuser 60, and reflections therein. The seat 70 constitutes a receiving part 11 into which the seat 70 is inserted, and the front end of the seating step 12 prevents each component installed in the receiving part 11 from being separated from the fixing frame 10. It is characterized in that it is configured, by being combined with the rear protective plate 80 serves to protect the respective components inserted into the receiving portion (11).

In addition, the transparent protective plate 20 is inserted into the receiving portion 11 of the fixed frame 10 to be seated on the engaging step 12, and at the same time protects the inside from the external impact in all directions and at the same time fixed frame 10 ) It transmits the light of the light emitting board 50 installed therein to the outside to allow the driver to easily check the road information, and is preferably made of high-strength anti-ballistic reinforcement or tempered glass to withstand the strong impact. Do.

In addition, the road sign sheet 30 is attached to the front surface of the transparent protective plate 20 to be installed in close contact with the locking step 12, the road guide phrases, figures and traffic guide so that the driver can collect road information The mark is displayed.

In addition, the first hollow frame 40 is installed in close contact with the rear surface of the transparent protective plate 20 so that the first space portion 41 through which air can be circulated is formed in the receiving portion 11 of the fixed frame 10. It can be easily achieved through a conventional hollow ring.

In addition, the light emitting boards 50 are spaced apart from the rear of the first hollow frame 40 and are arranged in plurality. The LEDs 51 are installed, and the light emitting boards 50 emit light by the light emitted from the LEDs 51. The board 50 is adapted to self-luminous.

Therefore, according to the light emitting board 50, even when the weather conditions are bad at night or the weather light of the light emitting board 50 that emits itself through the transparent protective plate 20 to illuminate the road sign sheet 30 so that the driver It is possible to facilitate identification of the road information displayed on the road sign sheet 30.

In addition, the light emitting board 50 is characterized in that the first through-hole 53 penetrating the front, back, characterized in that, according to the first through-hole 53, the outside air to the first space portion 41 Inflow is made of air circulation.

In addition, the light diffusion unit 60 is installed in close contact between the first hollow frame 40 and the light emitting board 50, the front of the LED 51 by forming a plurality of recessed lens-shaped recesses (63). By spreading the luminous light of the broad) to prevent the dark portion on the road sign sheet 30, which is installed on both edges of the light emitting board 50, the heat sink 52 for protecting the LED (51) To resolve the local darkness caused by

In addition, the light diffusion unit 60 is characterized in that the second through-hole 61 corresponding to the first through-hole 53 formed in the light emitting board 50 is formed, the second through-hole 61 Through) it is possible to circulate the outside air to the first space portion (41).

In addition, the reflective sheet 70 is attached to the rear surface of the light emitting board 50 to increase the efficiency of light emission, and the third corresponding to the first through-hole 33 for easy circulation of the outside air It is characterized in that the through-hole 41 is configured.

In addition, the rear protection plate 80 is configured to form a reinforcement protrusion 83 in the front so that the second space portion 81 is formed in the receiving portion 11 to be spaced apart to the rear of the reflective sheet 70 in the fixed frame It is coupled to the (10), and serves to protect the light emitting board 50 and the light diffusion unit 60 is attached to the protective cover plate 20 and the reflective sheet 70 is attached to the road sign sheet 30, The rear protection plate 80 may be spaced apart from the rear protection plate 80 by additionally inserting the second hollow frame 82 between the rear protection plate 80 and the reflective sheet 70.

Here, the coupling of the rear protection plate 80 and the fixed frame 10 may be easily achieved through a conventional coupling method such as bolt coupling or rivet coupling, coupling of the fixed frame 10 and the rear protection plate 80. The site is preferably waterproofed by conventional methods.

In addition, the rear protective plate 80 is characterized in that a plurality of fourth through holes 85 for circulation of the outside air, there is no restriction according to the installation position of the fourth through holes 85, but preferably In this case, it may be preferable that the air is easily circulated by configuring a position corresponding to the third through hole 71 of the reflective sheet 70.

In addition, according to the fourth through-hole 85, the outside air is circulated to the first and second spaces 41 and 81, and the internal / external temperature difference of the cell type road sign 100 for preventing LED internal lighting condensation of the present invention. Does not occur, and as a result, condensation and frost does not occur.

In addition, the air vent 90 is coupled to the fourth through hole 85 of the rear protective plate 80, the cell type road for preventing the condensation of the LED internal lighting condensation of the present invention only pure air excluding the moisture and foreign matter contained in the atmosphere. Air in the first and second space portions 41 and 81 formed between the transparent protective plate 20, the light diffusion unit 60, and the reflective sheet 70 and the rear protective plate 80 by flowing into the sign 100. It is a configuration to circulate the outside air.

In addition, the air vent (90) is a hollow welding coupler (91) welded to the fourth through-hole 85, and a hollow hermetic coupler (95) screwed to the outer diameter of the welding coupler (91) And a filter inserted between the welding coupler 91 and the hermetic coupler 95 to prevent water from flowing into the receiving portion 11 of the fixed frame 10 through the fourth through hole 85. 99).

 In this case, the hollow welding coupler 91 is preferably welded while being inserted into the fourth through hole 85 of the rear protective plate 80 so as not to have a gap to penetrate moisture. It can also be achieved by screwing, etc., when waterproofing should be done when screwing.

In addition, the filter 99 is preferably made of a functional material having a function such as a high attack or a high attack so that easy ventilation and complete blockage of water, thereby, the road sign of the present invention even in rainy weather Penetration of water into the interior will be prevented.

Looking at the operation according to the configuration as described above are as follows.

First, the road sign sheet 30 on which the road information is displayed is attached to the front of the transparent protective plate 20, and then the transparent protective plate 20 is inserted into the receiving portion 11 of the fixing frame 10 to the transparent protective plate ( The road sign sheet 30 attached to 20 is brought into close contact with the locking step 12 of the fixed frame 10.

Thereafter, the first hollow frame 40 is inserted into the receiving portion 11 of the fixed frame 10 so that the first hollow frame 40 is brought into close contact with the rear surface of the transparent protective plate 20, and then the concave portion. By inserting the light diffusing unit 60 into the receiving unit 11 so that the 63 faces the front surface so that the transparent protective plate 20 and the light diffusing unit 60 are spaced apart from each other inside the fixing frame 10. The first space part 41 is formed between the transparent protective plate 20 and the light diffusion part 60.

Thereafter, a plurality of light emitting boards 50 having the reflective sheet 70 attached to the rear surface of the light emitting board 50 is inserted into the receiving portion 11 of the fixed frame 10 so that the light emitting board 50 may After being in close contact with the rear surface, the second hollow frame 82 is inserted into the accommodating part 11, and the rear protective plate 80 is in close contact with the second hollow frame 82 so that the reflective sheet 70 and the rear protective plate ( After the second space portion 81 is formed between the 80, the rear protection plate 80 and the fixing frame 10 are installed in combination, and then the fourth through hole 85 formed in the rear protection plate 80. Weld air vent (90) on the floor.

Here, the air vent 90 is screwed to the weld coupler 91 and the hermetic coupler 95 in a state in which the filter 99 is sandwiched between the weld coupler 91 and the hermetic coupler 95. Although the welding coupler 91 may be welded to the fourth through hole 85 of the rear protective plate 80, the welding coupler 91 may be welded to the fourth through hole 85. After welding, it is preferable to sequentially combine the filter 99 and the hermetic coupler 95.

According to this, the air is well circulated by the filter 99 made of a functional material having a function such as a high attack or a high attack, and moisture is prevented from entering the outside to prevent condensation and sex. Since not only can the driver easily identify the road sign 100, but also can be manufactured through a simple configuration, and no damage is caused by heat, thereby reducing production costs and maintenance costs. It becomes possible.

In addition, in order to protect the LED 51, a portion where local darkness occurs in the light emitting board 50 by the heat dissipation plate 52 installed at both edges of the light emitting board 50 is formed on the front surface of the light emitting board 50. Since the light diffusion by the concave portion 63 of the light diffusing portion 60 is formed in close contact can be eliminated, the road sign sheet 30 can be prevented from forming a dark portion, thereby driving at night The driver can easily obtain the information of the road sign 100 without difficulty.

In addition, the present invention has been described with a specific embodiment limited, but is not limited to the specific embodiment and the accompanying drawings, various changes and modifications will be possible within the scope without departing from the spirit of the present invention, these changes are All belong to the scope of the present patent will be apparent from the appended claims.

10: fixed frame 11: receiving portion
12: hanging step 20: transparent protective plate
30: road sign sheet 40: the first hollow frame
41: first space part 50: light emitting board
51: LED 52: heat sink
53: first through hole 60: light diffusion unit
61: second through hole 63: recess
70: reflective sheet 71: third through hole
80: rear protective plate 81: the second space
82: second hollow frame 83: reinforcement protrusion
85: fourth through hole 90: air vent
91: welded joints 95: sealed joints
99: filter 100: road sign

Claims (3)

A fixing frame 10 forming an accommodating part 11 therein and constituting a locking step 12;
A transparent protective plate 20 inserted into the receiving part 11 of the fixed frame 10 to protect the inside from an external impact;
A road cover sheet 30 attached to the front surface of the transparent protective plate 20 and installed in close contact with the locking step 12 and displaying a road name;
A first hollow frame 40 installed in close contact with a rear surface of the transparent protective plate 20 so that a first space portion 41 is formed in the accommodation portion 11 of the fixed frame 10;
The light emitting board 50 which is spaced apart from the rear of the first hollow frame 40 and arranged in a plurality, wherein the LED 51 is installed to emit light, and constitutes a first through hole 53 penetrating the front and rear surfaces. ;
A second through hole 61 corresponding to the first through hole 53 of the light emitting board 50 is formed to be closely installed between the first hollow frame 40 and the light emitting board 50. A light diffusion unit 60 forming a plurality of concave portions 63 having a concave lens shape to diffuse the light emitted by the LED 51 to prevent dark parts from occurring on the road sign sheet 30;
A reflection sheet 70 attached to a rear surface of the light emitting board 50 to enhance the efficiency of light emission and constituting a third through hole 71 corresponding to the first through hole 53;
Is coupled to the fixed frame 10 to protect the light emitting board 50 and the light diffusion unit 60 is attached to the transparent protective plate 20 and the reflective sheet 70 is attached to the road sign sheet 30, the receiving portion The rear protective plate constituting the reinforcement protrusions 83 to the front to be spaced apart to the rear of the reflective sheet 70 so as to form the second space portion 81 in the front (11), the plurality of fourth through holes (85) ( 80);
An air vent 90 coupled to the fourth through hole 85 of the rear protection plate 80 to prevent condensation from being generated by circulation of air and outside air in the first and second space parts 41 and 81. Cell-type road signs for preventing condensation inside LEDs, which are characterized by high light emission efficiency.
The method of claim 1, wherein the air vent 90 is a hollow welding joint 91 is welded to the fourth through-hole 85 and the hollow seal screwed to the outer diameter of the welding joint 91 It is inserted between the coupler (95), the welding coupler 91 and the hermetic coupler (95) that the water flows into the receiving portion 11 of the fixed frame 10 through the fourth through hole (85). The cell type road sign for preventing condensation inside the LED, which is characterized by consisting of a filter (99).
The method of claim 2, wherein the filter 99 is well ventilated, the cell type road sign for preventing internal light condensation of the LED, characterized in that made of a material that is blocked the inflow of moisture.

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