Ground-mounted Traffic Light Device

Abstract

A floor-mounted traffic light device is disclosed. The present invention comprises a printed circuit board having a plurality of light sources installed on its upper surface, a traffic light housing in which the printed circuit board is installed, and a lens panel installed inside the traffic light housing and positioned above the plurality of light sources. According to the present invention, not only can condensation be prevented through the lens panel installed inside the traffic light housing, but user visibility can also be improved through light diffusion to the outside through the lens panel installed above the light sources, such as LEDs.

Description

Technology Field

[0001] The present invention relates to a floor-mounted traffic light device, and more specifically, to a floor-mounted traffic light device that not only prevents condensation through a lens panel installed inside the traffic light housing, but also improves user visibility through light diffusion to the outside through a lens panel installed above a light source such as an LED. Background Technology

[0002] Floor-mounted traffic light devices installed on the ground near the crosswalk waiting line are widely used to support pedestrian safety at crosswalks.

[0003] Meanwhile, such floor-mounted traffic light devices have a problem in that the external visibility of light emitted from light sources, such as LEDs, is reduced due to condensation occurring inside caused by the temperature difference between the inside and outside.

[0004] In addition, ground-mounted traffic light devices have a problem in that they fail to adequately perform their function of supporting pedestrian safety, as light visibility is reduced due to various external factors, such as submersion in rainwater during rain, in addition to internal condensation.

[0005] The foregoing description is provided merely as related art to aid in understanding the present invention, and does not imply that the foregoing description can be applied as prior art related to the present invention. The problem to be solved

[0006] Accordingly, the objective of the present invention is to provide a floor-mounted traffic light device that not only prevents condensation through a lens panel installed inside the traffic light housing, but also improves user visibility through light diffusion to the outside through a lens panel installed above a light source such as an LED.

[0007] The problems to be solved by the present invention are not limited to the problems mentioned, and include other technical problems that can be clearly understood by those skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0008] A floor-mounted traffic light device according to the present invention for achieving the above objective comprises: a printed circuit board having a plurality of light sources installed on its upper surface; a traffic light housing in which the printed circuit board is installed; and a lens panel installed inside the traffic light housing and positioned above the plurality of light sources.

[0009] Preferably, the lower surface of the lens panel is characterized by having hemispherical grooves formed at positions corresponding to the light source.

[0010] In addition, the above-mentioned hemispherical groove is characterized by being filled with a transparent waterproofing agent.

[0011] In addition, the upper surface of the lens panel is characterized by having a hemispherical protrusion formed at a position corresponding to the hemispherical groove.

[0012] Additionally, the device is provided with coupling holes to which the hemispherical protrusions are each coupled, and further includes a coupling panel coupled to the upper surface of the lens panel. Effects of the invention

[0013] According to the present invention, not only can condensation be prevented through a lens panel installed inside a traffic light housing, but user visibility can also be improved through light diffusion to the outside through a lens panel installed above a light source such as an LED.

[0014] The effects of the present invention are not limited to the effects mentioned, and include other effects that can be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0015] FIG. 1 is a drawing showing the external structure of a traffic light housing in a floor-mounted traffic light device according to one embodiment of the present invention. FIG. 2 is a drawing showing the internal structure of a traffic light housing in a floor-mounted traffic light device according to one embodiment of the present invention. FIG. 3 is a drawing showing the structure of the upper surface of a lens panel installed in the internal space of a traffic light housing in FIG. 2, and FIG. 4 is a drawing showing the structure of the lower surface of the lens panel in FIG. 3. FIG. 5 is a drawing showing the structure of a coupling panel that is coupled and installed on the upper surface of the lens panel in FIG. 3. FIG. 6 is a drawing showing the state in which the coupling panel of FIG. 5 is coupled and installed on the upper surface of the lens panel of FIG. 3. FIG. 7 is a drawing showing the state in which the lens panel of FIG. 6 is installed in the internal space of the traffic light housing of FIG. 2. FIG. 8 is a drawing showing a printed circuit board installed in the internal space of the signal light housing in FIG. 7. FIG. 9 is a drawing showing the state in which the printed circuit board of FIG. 8 is installed in the internal space of the traffic light housing of FIG. 7. FIG. 10 is a drawing showing the internal structure visible through a light-transmitting panel in a floor-mounted traffic light device according to one embodiment of the present invention. FIGS. 11 and FIGS. 12 are drawings showing the process of installing a power housing in the internal space of the traffic light housing in FIG. 9. FIG. 13 is a drawing showing the state in which the waterproofing treatment of the traffic light housing in FIG. 12 is completed, and FIG. 14 is a drawing showing the state in which the traffic light housing in FIG. 13 is coupled to a mounting bracket. Specific details for implementing the invention

[0016] The present invention will be described in more detail below with reference to the drawings. It should be noted that identical components in the drawings are denoted by the same reference numerals wherever possible. Furthermore, detailed descriptions of known functions and configurations that could unnecessarily obscure the essence of the invention are omitted.

[0017] FIG. 1 is a drawing showing the external structure of a traffic light housing (100) in a floor-mounted traffic light device according to one embodiment of the present invention, and FIG. 2 is a drawing showing the internal structure of a traffic light housing (100) in a floor-mounted traffic light device according to one embodiment of the present invention.

[0018] As shown in FIG. 1, in the signal light housing (100) of a floor-mounted signal light device according to one embodiment of the present invention, a light-transmitting panel (110) that transmits light from a light source (450), such as an LED, to the outside may have a non-slip member (115) formed protruding therefrom to prevent a pedestrian from slipping when stepping on the signal light housing (100).

[0019] Meanwhile, a printed circuit board (400) of FIG. 8 may be installed in the internal space of a traffic light housing (100) as in FIG. 2, and a stacked structure may be formed in which the printed circuit board (400) is additionally installed while the coupling panel (300) of FIG. 5 and the lens panel (200) of FIG. 3 and FIG. 4 are first installed inside.

[0020] FIG. 3 is a drawing showing the structure of the upper surface of a lens panel (200) installed in the internal space of the traffic light housing (100) in FIG. 2, and FIG. 4 is a drawing showing the structure of the lower surface of the lens panel (200) in FIG. 3.

[0021] As shown in FIG. 4, a plurality of hemispherical grooves (255) are formed on the lower surface of the lens panel (200), and as shown in FIG. 3, hemispherical protrusions (250) are formed on the upper surface of the lens panel (200) at positions corresponding to the formation locations of the hemispherical grooves (255).

[0022] Specifically, as the lower surface of the plate-shaped panel portion (230) in the lens panel (200) made of a transparent or translucent synthetic resin is molded to form a hemispherical groove (255), a hemispherical projection (250) may be formed protrudingly on the upper surface of the panel portion (230) at a position corresponding to the hemispherical groove (255).

[0023] FIG. 5 is a diagram showing the structure of a coupling panel (300) that is coupled and installed on the upper surface of the lens panel (200) in FIG. 3. As shown in FIG. 5, the coupling panel (300) has a grid-like structure in which a plurality of coupling holes (350) are continuously formed in the horizontal and vertical directions.

[0024] As shown in FIG. 6, when a coupling panel (300) is coupled to the upper surface of a lens panel (200), a pair of hemispherical protrusions (250) formed adjacently on the upper surface of the lens panel (200) are each inserted into the coupling hole (350) of the coupling panel (300), thereby maintaining an exposed state to the outside.

[0025] In this way, by inserting the hemispherical protrusions (250) of the lens panel (200) into each coupling hole (350) of the coupling panel (300), the coupling panel (300) forms a closely coupled state with the panel portion (230) of the lens panel (200).

[0026] Meanwhile, in assembling and producing a floor-mounted traffic light device according to the present invention, the manufacturer may first attach the coupling panel (300) to the upper surface of the lens panel (200) so that the hemispherical projection (250) of the lens panel (200) is inserted into the coupling hole (350) of the coupling panel (300) as shown in FIG. 6, and then attach the lens panel (200) with the coupling panel (300) installed on its upper surface in this manner to the lower surface of the light-transmitting panel (110) through the open lower part of the traffic light housing (100) as shown in FIG. 7.

[0027] As a result, a coupling panel (300) is installed adjacent to the lower surface of the light-transmitting panel (110) of the traffic light housing (100), and a lens panel (200) is installed so as to be in close contact with the lower surface of the coupling panel (300), and as shown in FIG. 7, a state is formed in which the hemispherical groove (255) on the lower surface of the lens panel (200) is exposed to the outside through the open lower part of the traffic light housing (100).

[0028] Specifically, the manufacturer may fix the lens panel (200) to the light-transmitting panel (110) by inserting the fixed frame (120), which is formed in a rectangular shape protruding from the lower surface of the light-transmitting panel (110) as in FIG. 2, into the coupling groove (210), which is formed in a rectangular shape along the perimeter of the lens panel (200) on the upper surface of the lens panel (200) as in FIG. 3.

[0029] Meanwhile, in carrying out the present invention, the manufacturer may pre-apply an adhesive such as silicone or epoxy along the perimeter of the connection of the lens panel (200) in FIG. 7 inside the traffic light housing (100) so that the lens panel (200) can be more firmly fixed and installed inside the traffic light housing (100).

[0030] Next, the manufacturer may form an installation structure of the printed circuit board (400) inside the traffic light housing (100) as shown in FIG. 9 by installing the printed circuit board (400) of FIG. 8 through the open lower part of the traffic light housing (100) as shown in FIG. 7 so as to overlap it with a predetermined spacing on the lower surface of the lens panel (200) in which a hemispherical groove (255) is formed.

[0031] Specifically, as shown in FIG. 8, a plurality of light sources (450), such as LEDs, are installed on the upper surface of the printed circuit board (400), and as shown in FIG. 9, a power supply module (410) that supplies power to the light sources (450) and a power cable (415) that connects the power supply module (410) to an external power source are installed on the lower surface of the printed circuit board (400).

[0032] Meanwhile, in the installation state as in FIG. 9, a plurality of light sources (450) provided on the upper surface of the printed circuit board (400) are installed so as to face each of the plurality of hemispherical grooves (255) formed on the lower surface of the lens panel (200) in FIG. 7 at a predetermined distance in the vertical direction.

[0033] According to the present invention, a lens panel (200) and a coupling panel (300) are installed in the gap space between a plurality of light sources (450) and the lower surface of a light-transmitting panel (110) of a traffic light housing (100) to occupy the gap space, thereby minimizing the air filling the gap space, and thus preventing condensation from forming in the space due to the temperature difference between the inside and outside of the floor-mounted traffic light device.

[0034] Specifically, according to the present invention, a coupling panel (300) is additionally installed between the upper surface of the lens panel (200) and the lower surface of the light-transmitting panel (110) as shown in FIG. 6, thereby further minimizing the air filling the gap between the plurality of light sources (450) and the lower surface of the light-transmitting panel (110).

[0035] In addition, in carrying out the present invention, the manufacturer may completely prevent condensation from forming in the gap space due to the temperature difference between the inside and outside of the floor-mounted traffic light device by filling the gap space between the lower surface of the lens panel (200) and the upper surface of the printed circuit board (400) with a transparent or translucent waterproofing agent such as epoxy, thereby filling the gap space between the printed circuit board (400) and the lower surface of the light-transmitting panel (110).

[0036] Meanwhile, when a waterproofing agent is filled in this manner, a transparent or translucent waterproofing agent is filled into the internal space of a hemispherical groove (255) that is spaced upward from the light source (450) at a position corresponding to each light source (450), so that each hemispherical groove (255) functions as a hemispherical lens structure that diffuses light irradiated from the light source (450) located at the bottom.

[0037] In this way, the lens panel (200) installed on the upper part of the printed circuit board (400) is provided at a position corresponding to each light source (450) installed on the printed circuit board (400) and performs the function of an optical lens panel (200) through a hemispherical groove (255) filled with a waterproofing agent inside.

[0038] As such, according to the present invention, as shown in FIG. 10, a coupling panel (300) is installed at the bottom of a light-transmitting panel (110) of a traffic light housing (100), a lens panel (200) having a hemispherical protrusion (250) is installed at the bottom of the coupling panel (300), and a plurality of light sources (450) are installed at the bottom of the lens panel (200), thereby forming a layered structure that prevents condensation from occurring inside the traffic light housing (100) and, at the same time, significantly increases the visibility of the floor-mounted traffic light device through the light diffusion action through the lens panel (200).

[0039] In addition, according to the present invention, as shown in FIG. 10, the lower circumference of a hemispherical projection (250) that functions as a lens structure by being filled with a transparent waterproofing agent inside is covered by the inner surface of the coupling hole (350) in the coupling panel (300), so that the coupling panel (300) blocks the lateral irradiation of light irradiated outward through the hemispherical projection (250) and induces irradiation in the upward direction, thereby performing the function of further improving the user's light visibility.

[0040] Meanwhile, in carrying out the present invention, a spacer (270) is formed protrudingly on the lower surface of the lens panel (200) as shown in FIG. 4, so that when the printed circuit board (400) is installed on the lower surface of the lens panel (200), the protruding end of the spacer (270) is coupled to the upper surface of the printed circuit board (400), thereby allowing the upper surface of the printed circuit and the lower surface of the lens panel (200) to be spaced apart by the protruding length of the spacer (270).

[0041] Accordingly, the upper end of a light source (450), such as an LED, installed on the upper surface of a printed circuit board (400) is not inserted into the interior of a hemispherical groove (255) of a lens panel (200) and can be installed spaced apart from the lower surface of the lens panel (200) by a predetermined length.

[0042] In addition, in carrying out the present invention, a coupling pin (290) may be formed protrudingly on the lower surface of the lens panel (200) as shown in FIG. 4, so that the manufacturer may insert the coupling pin (290) into a pin hole (430) formed at a corresponding position on the printed circuit board (400), thereby fixing the installation position of the printed circuit board (400) on the lower surface of the lens panel (200).

[0043] In addition, in carrying out the present invention, as shown in FIG. 2, a plurality of inclined sections (130), which are bar-shaped wedge structures that are extended in the horizontal direction and have a cross-sectional shape of a right triangle, may be provided on the lower surface of the light-transmitting panel (110) of the traffic light housing (100) at a predetermined distance apart in the vertical direction.

[0044] In this case, as shown in FIGS. 9 and 10, with a printed circuit board (400) installed inside the traffic light housing (100), light sources (450) arranged in a continuous horizontal direction and hemispherical protrusions (250) located above each light source (450) are positioned below the inclined section (130). As a result, light irradiated from each light source (450) passes through the hemispherical protrusions (250) and is then irradiated to the outside of the light-transmitting panel (110) through the inclined surface (i.e., the surface including the hypotenuse of the right triangle) of the inclined section (130) which has a cross-sectional shape of a right triangle.

[0045] In this way, light irradiated to the outside of the light-emitting panel (110) through the inclined surface of the inclined section (130) forms a predetermined angle of inclination with the upper surface of the light-emitting panel (110), which forms a plane with the ground in the construction state of the floor-mounted traffic light device, thereby providing improved visibility to users standing on the crosswalk.

[0046] Meanwhile, in an installation state as in FIG. 9, the manufacturer may be able to install a power housing (500) for fixing a printed circuit board (400) inside the traffic light housing (100) by inserting it through the open lower part of the traffic light housing (100) as in FIG. 11, thereby attaching it to the traffic light housing (100) as in FIG. 12.

[0047] In carrying out the present invention, as shown in FIG. 11, a fixing member (510) that is coupled to a fixing groove (140) formed on the lower edge of the signal light housing (100) as shown in FIG. 9 may be formed protrudingly on the side perimeter of the power housing (500), thereby allowing the power housing (500) and the signal light housing (100) to form a more robust connection.

[0048] In addition, in carrying out the present invention, as shown in FIGS. 11 and 12, the power housing (500) may be provided with a gripper (530) for securing the power cable (415) in a fitting manner.

[0049] In addition, in carrying out the present invention, as shown in FIG. 12, open grooves (150) may be formed on both the left and right sides of the open bottom of the traffic light housing (100), so that the power cable (415) can be connected to the outside through the open grooves (150) without interfering with the traffic light housing (100), as shown in FIG. 12.

[0050] Meanwhile, in carrying out the present invention, the manufacturer may complete the waterproofing treatment for the floor-mounted traffic light device by filling the internal space of the traffic light housing (100), which is divided through the structure of the power housing (500) as shown in FIG. 13, with a waterproofing agent (600) such as epoxy.

[0051] In addition, when constructing a floor-mounted traffic light device manufactured in this manner, the builder may combine the traffic light housing (100) of FIG. 13 with the upper part of a steel frame having a 'U'-shaped cross-section as shown in FIG. 14, and the mounting bracket (700) may be installed buried underground so that only the upper surface of the traffic light housing (100) is exposed above the ground.

[0052] The terms used in this invention are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0053] Although preferred embodiments and applications of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments and applications described above. Furthermore, various modifications can be made by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0054] 100: Traffic light housing, 110: Floodlight panel, 115: Anti-slip device, 120: Fixed frame, 130: Inclined groove, 140: Fixed groove, 150: Open groove, 200: Lens panel, 210: Connecting groove, 230: Panel part, 250: Hemispherical projection, 255: Hemispherical groove 270: Spacer, 290: Connecting pin, 300: Joining panel, 350: Joining hole, 400: Printed circuit board, 410: Power supply module, 415: Power cable, 430: Pinhole, 450: Light source, 500: Power housing, 510: Fixing device, 530: Grabbing device, 600: Waterproofing agent, 700: Stand.

Claims

Claim 1 A printed circuit board (400) having a plurality of light sources (450) installed on its upper surface; a signal light housing (100) in which the printed circuit board (400) is installed inside; A floor-mounted traffic light device comprising a lens panel (200) installed inside the traffic light housing (100) and spaced apart from the upper portion of the plurality of light sources (450), wherein the plurality of light sources (450) are installed so as to face each other at a predetermined vertical distance from each other through a plurality of hemispherical grooves (255) formed on the lower surface of the lens panel (200), and a coupling hole (350) to which a hemispherical protrusion (250) formed on the upper surface of the lens panel (200) is each coupled, and further comprising a coupling panel (300) coupled to the upper surface of the lens panel (200), wherein the lower portion of the hemispherical protrusion (250) is covered by the inner surface of the coupling hole (350), thereby blocking lateral irradiation of light irradiated to the outside through the hemispherical protrusion (250). Claim 2 A floor-mounted signal light device according to claim 1, wherein the hemispherical groove (255) is filled with a transparent waterproofing agent. Claim 3 A floor-mounted signal light device according to claim 1, wherein the hemispherical projection (250) is formed at a position corresponding to the hemispherical groove (255) on the upper surface of the lens panel (200). Claim 4 A floor-mounted traffic light device according to claim 1, wherein the lower surface of the light-transmitting panel (110) that transmits light from the light source (450) to the outside in the traffic light housing (100) is provided with an inclined section (130) that causes the light from the light source (450) to be irradiated to the outside while forming an angle of inclination with the ground.

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