KR101382110B1 - Led traffic signal display equipment having a heatsink and hinge - Google Patents

Abstract

An LED signal display device having a heat radiation and hinge structure according to the present invention includes: an LED module; a light guide plate that has an internal groove formed on the rear portion of both ends to insert the LED module and converts a light path to uniformly output the light emitted from the LED module to the front portion thereof, wherein the LED module is inserted into the internal groove; a heat radiating means provided on one region of the internal groove at which the LED module is fixed, to transmit the heat generated from the LED module to outside; a side cover to be fixed by inserting the light guide plate and both side surface portions of the heat radiating means; an internal support means disposed between one surface of the heat radiating means and the side cover and transmitting the heat from the heat radiating means; and a rear support plate disposed on the rear surface portion of the light guide plate to protect the light guide plate from the outside by fixing and coupling with the side cover and the internal support means.

Description

LED signal display device having heat dissipation and hinge structure {LED traffic signal display equipment having a heatsink and hinge}

The present invention relates to an LED signal display device having a heat dissipation and a hinge structure, and provides a structure for inserting an LED module into a light guide plate to protect heat from external shock and vibration and to efficiently dissipate heat generated from the LED module. The present invention relates to a heat dissipation and hinge structure LED signal display device having a heat dissipation structure, and having a day-light filter having a hinge structure.

In general, traffic signs installed on the road display various visual information required for the safe movement of vehicles and pedestrians, and regulatory signs and roads that limit the types of vehicles or human traffic, the way and direction of the road, etc. There are many different types of signs, including signs that tell you how to use and directions, and signs that tell you what to do, including road conditions.

Conventional traffic signs are mainly installed on horizontal posts or horizontally mounted supports at a predetermined height above the road. Since the conventional traffic signs are made of metal plates, certain display contents such as figures and characters are designed. It was relatively easy to identify the contents of a sign in bright surroundings, but it was difficult to identify the contents of a sign in the dark, such as at night, and it was difficult to know that the sign was installed at a long distance.

As a result, a separate lighting device for illuminating the traffic sign was installed at night, but this is a method of recognizing the content of the sign through the reflected light of the light that illuminates the entire surface of the sign. As the lighting intensity increases, the sign itself becomes more perceptible, but the reflected light decreases the content identification.

In addition, although traffic signs with lamps installed inside a box-shaped panel made of a translucent material are used, this is also a method of recognizing the contents of the sign by the light emitted through the entire translucent display surface of the sign, so the recognition of the sign itself is It is high, but content identification is deteriorated.

In order to solve this problem, there has been suggested a traffic sign arranged a plurality of LEDs in the form of a pattern for displaying a predetermined information. Since only the picture part consisting of LEDs emits light to display the contents of the entire surface of the sign, the power consumption is small, and the viewability is wide and the drawing is clearly displayed at a long distance. have. In addition, by installing a lighting LED in the lower part of the sign can be used as a lighting means to replace the existing street light.

1 to 3 schematically show the structure of a conventional LED signal display device. As shown in Figure 1, the partial light emission method using the optical fiber, using one or several LEDs using some of the LED and the optical fiber to collect the light at the end of the LED to form a shape of the shape to emit light It is a method of emitting light by arranging out of high brightness sheet paper. It collects the light of the LED module and delivers the light to the desired place through the optical fiber, which consumes less power, but it is difficult to emit the signal sign on the front surface and only partially emits light, which makes it difficult to realize the exact shape of the signal display and the thickness of the enclosure is wide. have.

In addition, as shown in FIG. 2, the LEDs are arranged in front of the lower end of the LED and emit light. The LED modules are arranged on the lower front of the LED to be uniformly disposed to emit light through the light diffusion sheet. This is because the number of LED module is used a lot, there is a problem that power consumption, price increase and the thickness of the enclosure is wide.

In addition, as shown in Figure 3, the LED module is located on the side of the light guide plate is inserted into the LED light into the transparent light guide plate and then the light is reflected on the lower concave-convex portion and the reflective sheet is a method of emitting all of the front high-brightness sheet. . It can evenly distribute the light of the LED module to the front side and reduce the thickness of the enclosure, but the LED module is located between the light guide plate and the enclosure, which makes the LED array structure difficult and external shock is transmitted directly from the enclosure. There is an issue that is easy to go.

The technical problem to be solved by the present invention is to provide a structure for inserting the LED module inside the light guide plate to protect the external shock and vibration and at the same time LED signal display having a heat dissipation structure that can effectively dissipate heat generated from the LED module To provide a device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. It will be possible.

LED signal display device having a heat dissipation structure according to the present invention for solving the above technical problem, LED module; A light guide plate having an inner groove formed at a rear end of both ends to insert the LED module, and converting a light path to uniformly output the light emitted from the LED module inserted into the inner groove to the front part; Heat dissipation means provided in one region of the inner groove to which the LED module is fixed to transfer heat generated from the LED module to the outside; A side cover which fixes and inserts both side portions of the light guide plate and the heat dissipation means; Internal support means provided between one surface of the heat dissipation means and the side cover to transfer heat of the heat dissipation means; And a rear support plate provided at a rear portion of the light guide plate to be fixedly coupled to the side cover and the inner support means to protect the light guide plate from the outside.

Here, in particular, the front portion of the light guide plate and the light diffusion sheet for uniformly diffusing the light emitted from the light guide plate; A protective sheet for protecting the light diffusion sheet; A rear surface of the light guide plate and a reflective sheet for reflecting the light emitted from the LED module to the front; It is characterized in that it further comprises a power cable connected to apply power to the LED module.

Here, in particular, the heat dissipation means is characterized in that one side is fixed to the lower portion of the LED module and the other side is formed to be bent in a or b shape to contact the outer surface of the inner groove.

Here, in particular, it is characterized in that it further comprises a bolt and nut fixedly penetrating through the inner support means, the side cover and the back support plate.

Here, in particular, the LED signal display unit is characterized in that it further comprises a camera module for photographing the surrounding traffic conditions and the LED floodlight for providing lighting for the camera module to photograph the surrounding traffic conditions.

In addition, the LED signal display device having a heat dissipation structure according to the present invention, the first LED signal display unit provided on one surface of the LED signal display device; A second LED signal display unit provided on the other surface of the LED signal display device; Fastening by a fixing screw provided between the rear surface of the first LED signal display portion and the rear surface of the second LED signal display portion and penetrating the inner support means of the first LED signal display portion and the inner support means of the second LED signal display portion. It is characterized in that it comprises a honeycomb support means for supporting by.

Herein, in particular, each of the first LED signal display unit and the second LED signal display unit includes an LED module; A light guide plate having an inner groove formed at a rear end of both ends to insert the LED module, and converting a light path to uniformly output the light emitted from the LED module inserted into the inner groove to the front part; Heat dissipation means provided in one region of the inner groove to which the LED module is fixed to transfer heat generated from the LED module to the outside; Side covers for inserting and fixing both side portions of the light guide plate and the heat dissipation means; And an inner support means provided between one surface of the heat dissipation means and the side cover to transfer heat of the heat dissipation means.

Here, in particular, the front portion of the light guide plate and the light diffusion sheet for uniformly diffusing the light emitted from the light guide plate; A protective sheet for protecting the light diffusion sheet; A rear surface of the light guide plate and a reflective sheet for reflecting the light emitted from the LED module to the front; A power cable connected to apply power to the LED module; And it is characterized in that it further comprises a vibration absorbing plate provided between the side cover and the light guide plate.

Here, in particular, the heat dissipation means is characterized in that one side is fixed to the lower portion of the LED module and the other side is formed to be bent in a or b shape to contact the outer surface of the inner groove.

Here, in particular, it is characterized in that it further comprises a bolt and nut fixedly penetrating through the side portion and the inner support means of the side cover.

Here, in particular, further comprising a camera module provided at the bottom of the first LED signal display unit and the second LED signal display unit for photographing the surrounding traffic conditions and an LED flood light for providing illumination for the camera module. There is a characteristic.

Here, the camera module is characterized in that the day-night filter that is changed while rotating with a filter corresponding to the day or night is provided.

According to the present invention, it is possible to efficiently dissipate heat generated from the LED module while protecting the external shock and vibration by providing a structure for inserting the LED module inside the light guide plate.

1 to 3 schematically show the structure of a conventional LED signal display device.
4 is a diagram schematically illustrating a structure of an LED signal display device having a heat dissipation and a hinge structure according to a first embodiment of the present invention.
5 is an enlarged view of a configuration of area A of FIG. 4.
FIG. 6 is a view schematically illustrating a structure of an LED signal display device having a heat dissipation and a hinge structure according to a second embodiment of the present invention; FIG.
7 is an enlarged view of a portion B of FIG. 6.
8 is an enlarged view of a portion C of FIG. 6.
FIG. 9 illustrates driving of the day-night filter mounted to the camera of FIG. 6; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a view schematically illustrating a structure of an LED signal display device having a heat dissipation and hinge structure according to a first embodiment of the present invention, and FIG. 5 is an enlarged view of the configuration of region A of FIG. 4.

As shown in FIG. 4, the LED signal display device having a heat dissipation and hinge structure according to the first embodiment of the present invention includes an LED module 405, a light guide plate 403, a heat dissipation means 404, and a side cover ( 406, the inner support means 409, the rear protective plate 408, the light diffusion sheet 402, the protective sheet 401, and the power cable 407.

The light guide plate 403 has internal grooves formed at rear ends of both ends to insert the LED module 405, and light is uniformly output to the front part of the light emitted from the LED module 405 inserted into the internal grooves. Will transform the path of.

More specifically, the light guide plate 403 is formed as an inner groove in the c-shape at the rear end of both ends so that the LED module 405 is inserted into the inner groove. Here, the LED module 405 disposed in the inner groove can be protected from external shock and vibration.

The light path output from the LED module 405 is reflected by the reflector provided on the rear side while the light output by the LED module 405 inserted into the corner of the light guide plate 403 is evenly distributed on the light guide plate. The light guide plate 405 is uniformly emitted to the front surface of the light guide plate 405.

Here, a light diffusion sheet 402 for uniformly diffusing the light emitted from the light guide plate 405, a protective sheet 401 for protecting the light diffusion sheet 402, and the light guide plate may be provided on the front portion of the light guide plate 405. It is preferable to further include a reflective sheet 411 on the rear portion of the 405 to reflect the light emitted from the LED module 405 to the front portion.

The heat dissipation means 404 is provided in one region of the inner groove to which the LED module 405 is fixed to transfer heat generated from the LED module 405 to the outside. Here, the heat dissipation means 404 is provided between the one surface of the inner groove of the light guide plate 405 and the lower portion of the LED module 405 is formed in a structure that can directly transfer the heat generated from the LED module 405 have.

More specifically, the heat dissipation means 404 is bent in a or b shape so that one surface is fixed to the lower portion of the LED module 405 and the other surface is in contact with the outer surface of the inner groove. At this time, the portion of the heat dissipation means 404 is in contact with the outer surface connected to the inner groove of the light guide plate 405 is disposed to be in direct contact with the inner support means (409) to receive heat from the inside to be discharged to the outside To help.

The side cover 406 inserts and fixes both side portions of the light guide plate 405 and the heat dissipation means 404. That is, the side cover 406 is a fastening portion for protecting from an external impact.

The inner support means 409 is provided between one surface of the heat dissipation means 404 and the side cover 406 to transfer heat of the heat dissipation means 404. Here, the inner support means is provided in close contact with the inner space between the side cover 406 and the heat dissipation means 404 in a c-shaped structure serves to transfer heat to the outside.

The rear support plate 408 is provided on the rear portion of the light guide plate 405 to be fixed to the side cover 406 and the internal support means 409 to protect the light guide plate 405 from the outside. Here, it is preferable to form a cable hole in the rear support plate 408 so that the power cable 407 connected to apply power to the LED module 404 penetrates.

Here, the inner support means 409, the side cover 406 and the rear support plate 408 further comprises a bolt and nut 410 for fastening through them.

On the other hand, although not shown in the drawings may be provided at the bottom of the LED signal display unit may include a camera module for photographing the surrounding traffic conditions and the LED flood light for providing illumination for the camera module.

6 is a diagram schematically illustrating a structure of an LED signal display device having a heat dissipation and hinge structure according to a second embodiment of the present invention, and FIG. 7 is an enlarged view of a portion B of FIG. 6. 8 is an enlarged view of a portion C of FIG. 6.

As shown in FIG. 6, an LED signal display device having a heat dissipation and hinge structure according to a second embodiment of the present invention includes a first LED signal display unit 610 provided on one surface of the LED signal display device, and the LED. The second LED signal display unit 620 provided on the other surface of the signal display device 610 and the rear surface of the first LED signal display unit 610 and the rear surface of the second LED signal display unit 620 and the first Honeycomb support means 630 is fastened by a fixing screw passing through the internal support means of the LED signal display unit 610 and the internal support means of the second LED signal display unit 620. do.

In the first LED signal display unit 610 and the second LED signal display unit 620, the signal display device shown in FIG. 4 is disposed on both sides.

In the first LED signal display unit 610 and the second LED signal display unit 620, an internal groove is formed in the rear end of both ends to insert the LED module and the LED module (604, 624), inserted into the internal groove Light guide plates 601 and 621 for converting light paths to uniformly output the light emitted from the LED modules 604 and 624 to the front part, and provided in one region of the inner groove to which the LED modules 604 and 624 are fixed. Heat dissipation means 606 and 626 for transferring heat generated from 604 and 624 to the outside, side covers 605 and 625 for inserting and fixing both side portions of the light guide plates 601 and 621 and the heat dissipation means 606 and 626 and one surface of the heat dissipation means. And an inner support means provided between the side cover and transferring heat of the heat dissipation means.

In addition, a light diffusion sheet 602 and 622 for uniformly diffusing the light emitted from the light guide plates 601 and 621, a protective sheet protecting the light diffusion sheets 602 and 622, and the light guide plates 601 and 621 on the front parts of the light guide plates 601 and 621. The rear portion of the reflective sheet 603 for reflecting the light emitted from the LED module (604, 624) to the front portion, a power cable connected to apply power to the LED module (604, 624) and vibration absorption provided between the side cover and the light guide plate The plate 609 will be further included.

Here, the description of the same configuration as in FIG. 4 will be omitted with reference to FIG. 4.

Meanwhile, bolts and nuts 608 and 628 for fixing and fastening through side surfaces of the side covers 605 and 625 and the inner support means 607 and 627 are further provided.

The honeycomb support means 630 is provided between the rear surface of the first LED signal display unit 610 and the rear surface of the second LED signal display unit 620 and the internal support means of the first LED signal display unit 610 ( 607 and the second LED signal display unit 620 by the fixing screw penetrating through the inner support means 627 is supported.

More specifically, since the honeycomb support means 630 is light in weight and has high support strength, the honeycomb support means 630 can form a thin thickness and a structure of the overall device.

In addition, by applying the honeycomb support means 630 it is possible to quickly dissipate heat transferred from the heat dissipation means (606, 626). That is, the honeycomb support means 630 is formed in a honeycomb-like structure, the area is wide to emit heat quickly.

Meanwhile, as shown in FIG. 8, a camera module 801 and the camera module 801 which are provided at the lower ends of the first LED signal display unit 610 and the second LED signal display unit 620 to photograph surrounding traffic conditions. It may further include an LED floodlight (802) for providing illumination for the shooting, the camera module 801 is provided with a day-night filter (803, 804) is changed while rotating with a filter corresponding to day or night It is desirable to be.

FIG. 9 is a view illustrating driving of a day-night filter mounted on the camera of FIG. 6. As shown in FIG. 9, the day filter and the night filter are disposed at 90 degree intervals, and change according to the day or night setting. At this time, the day filter and the night filter are rotated at intervals of 90 degrees by the drive unit of the hinge structure.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of course, this is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims that follow.

Description of the Related Art
403, 601, 621 --- Light guide plate 404, 606, 626 --- Heat dissipation means
405, 604, 624 --- LED module 406, 605, 625 --- side cover
408 --- Rear guard 409 --- Internal support
410 --- Fastening part 630 --- Honeycomb support means

Claims (12)

In the LED signal display device,
An LED module;
A light guide plate having an inner groove formed at a rear end of both ends to insert the LED module, and converting a light path to uniformly output the light emitted from the side to the front part by the LED module inserted into the inner groove;
Heat dissipation means provided in one region of the inner groove to which the LED module is fixed to transfer heat generated from the LED module to the outside;
A side cover which fixes and inserts both side portions of the light guide plate and the heat dissipation means;
Internal support means provided between one surface of the heat dissipation means and the side cover to transfer heat of the heat dissipation means; And
A rear support plate provided on the rear portion of the light guide plate to be fixedly coupled to the side cover and the inner support means to protect the light guide plate from the outside;
The heat dissipation means is a LED signal display device having a heat dissipation and hinge structure, characterized in that the one side is fixed to the lower portion of the LED module and the other side is bent in a or b shape so as to contact the outer surface of the inner groove.
The method according to claim 1,
A light diffusion sheet that uniformly diffuses light emitted from the light guide plate on a front portion of the light guide plate;
A protective sheet for protecting the light diffusion sheet;
A rear surface of the light guide plate and a reflective sheet for reflecting the light emitted from the LED module to the front;
LED signal display device having a heat dissipation and hinge structure further comprises a power cable connected to apply power to the LED module.


delete The method according to claim 1,
The LED signal display device having a heat dissipation and hinge structure further comprises a bolt and nut fixedly penetrating through the inner support means, the side cover and the rear support plate.
The method according to claim 1,
A camera module provided at the bottom of the LED signal display unit to photograph surrounding traffic conditions;
LED signal display device having a heat dissipation and a hinge structure further comprising a LED floodlight for providing illumination for the camera module photographing.
In the double-sided LED signal display device,
A first LED signal display unit provided on one surface of the LED signal display device;
A second LED signal display unit provided on the other surface of the LED signal display device;
Fastening by a fixing screw provided between the rear surface of the first LED signal display portion and the rear surface of the second LED signal display portion and penetrating the inner support means of the first LED signal display portion and the inner support means of the second LED signal display portion. Including means for supporting honeycomb,
In each of the first LED signal display unit and the second LED signal display unit,
An LED module;
A light guide plate having an inner groove formed at a rear end of both ends to insert the LED module, and converting a light path to uniformly output the light emitted from the side to the front part by the LED module inserted into the inner groove;
Heat dissipation means provided in one region of the inner groove to which the LED module is fixed to transfer heat generated from the LED module to the outside;
Side covers for inserting and fixing both side portions of the light guide plate and the heat dissipation means; And
An LED signal display device having a heat dissipation and hinge structure provided between one surface of the heat dissipation means and the side cover and including an internal support means for transferring heat of the heat dissipation means.


delete The method according to claim 6,
A light diffusion sheet that uniformly diffuses light emitted from the light guide plate on a front portion of the light guide plate;
A protective sheet for protecting the light diffusion sheet;
A rear surface of the light guide plate and a reflective sheet for reflecting the light emitted from the LED module to the front;
A power cable connected to apply power to the LED module; And
LED display device having a heat dissipation and hinge structure further comprises a vibration absorbing plate provided between the side cover and the light guide plate.
The method according to claim 6,
The heat dissipation means is a LED signal display device having a heat dissipation and hinge structure, characterized in that the one side is fixed to the lower portion of the LED module and the other side is bent in a or b shape so as to contact the outer surface of the inner groove.
The method according to claim 6,
The LED signal display device having a heat dissipation and hinge structure further comprising a bolt and nut fixedly penetrating through the side portion and the inner support means of the side cover.
The method according to claim 6,
A camera module provided at a lower end of the first LED signal display unit and the second LED signal display unit to photograph surrounding traffic conditions;
LED signal display device having a heat dissipation and a hinge structure further comprising a LED floodlight for providing illumination for the camera module photographing.
12. The method of claim 11,
LED camera display device having a heat dissipation and hinge structure characterized in that the camera module is provided with a day-night filter that is changed while rotating with a filter corresponding to day or night.

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