KR102561889B1 - A reclamation type signal lamp of the ground with the freeze protection function - Google Patents

Abstract

A floor-type walking traffic light having an anti-freeze function is disclosed. The floor-type walking traffic light having an anti-freezing function of the present invention includes a main body buried and installed at the boundary between a road and a sidewalk where a crosswalk is installed; A support module installed in a horizontal state on the upper part of the main body and having a plurality of LED installation parts formed on an upper surface inclined at a predetermined angle toward a pedestrian direction; An LED module installed separately in the LED installation part of the support module, turned on in conjunction with the crosswalk traffic light, and emitting light toward the pedestrian by the LED installation part; a cover installed to completely cover the upper part of the main body; and a heating module capable of maintaining the internal air between the main body and the cover at a constant temperature in winter.
According to the present invention, by operating the heating module in the winter season when the temperature drops rapidly, it is possible to maintain the internal air at a constant temperature required for smooth operation of the electrical device, thereby preventing damage and damage to the electrical device to prevent malfunction. However, the service life can be extended.

Description

A reclamation type signal lamp of the ground with the freeze protection function}

The present invention relates to a floor-type walking signal light having an anti-freezing function, and more particularly, to a floor-type walking signal light having a freezing-preventing function capable of preventing malfunction due to a decrease in temperature in winter.

In general, crosswalks are provided so that pedestrians can safely cross the road on which vehicles travel, and are mainly provided around intersections of roads or other places where there are many road crossers.

In such a crosswalk, it is common to have a crosswalk signal light that can periodically display a stop signal and a crosswalk signal, and the crosswalk signal light is installed at a certain height from the floor using a support.

Although the crosswalk traffic lights are installed at the eye level of the pedestrian, it is difficult to check the signal when the head is lowered, so it is easy to check the signal of the crosswalk traffic light when the pedestrian uses the mobile phone with the head down because the pedestrian is not aware of the surrounding situation. In order to prevent this, floor traffic lights are installed to provide additional signal information to pedestrians by turning on a walking signal on the floor of the waiting line at the crosswalk.

In particular, recently, floor-type walking traffic lights have been proposed that provide red and green lights to pedestrians in conjunction with crosswalk traffic lights so that a pedestrian with his head down can more clearly grasp when to cross the crosswalk and when to stop.

However, conventional floor-type walking traffic lights have a structural problem of shortening their lifespan and causing malfunctions by inducing damage and damage to electrical devices due to the influence of temperature drop in the winter season.

Republic of Korea Patent Registration No. 10-2265680 (registered on June 10, 2021)

The technical problem of the present invention is a floor type having an anti-freezing function that can prevent malfunction or damage to electrical devices by constructing a heating structure capable of maintaining a stable temperature required for operation of electrical devices in the winter season when the temperature drops rapidly. to provide pedestrian traffic lights.

The technical problem to be achieved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

The technical problem is a main body buried and installed at the boundary between a road and a sidewalk where a crosswalk is installed; A support module installed in a horizontal state on the upper part of the main body and having a plurality of LED installation parts formed on an upper surface inclined at a predetermined angle toward a pedestrian direction; An LED module installed separately in the LED installation part of the support module, turned on in conjunction with the crosswalk traffic light, and emitting light toward the pedestrian by the LED installation part; a cover installed to completely cover the upper part of the main body; and a heating module capable of maintaining the internal air between the main body and the cover at a constant temperature in winter.

The heating module includes a plurality of tube heaters installed at regular intervals below the support module and generating heat according to the supply of power; a temperature sensor installed to measure the temperature within the cover; and a control unit that receives information from the temperature sensor and controls the tube heater to operate when the temperature within the cover drops rapidly.

The tube heater is characterized in that the filament is formed by twisting the heating wire or carbon fiber in a spiral form, or the filament is formed by twisting the heating wire or carbon fiber in a grid-like shape and sealed inside the glass tube in a vacuum.

The LED installation unit is disposed long along the longitudinal direction at regular intervals from each other on the top of the support module, and the LED module is independently divided and installed in the LED installation unit, so that individual replacement is possible in case of failure.

The LED installation unit is characterized in that it is formed to be inclined at an angle of 10 degrees in the pedestrian direction with respect to the horizontal plane so as to increase pedestrian visibility without interfering with the driving of the vehicle driver.

The cover has a diffusion pattern having a concavo-convex structure capable of diffusing light emitted from the LED module over the entire inner area, and a plurality of anti-slip protrusions are formed on the upper surface thereof to prevent pedestrians from slipping from rain or snow. characterized by being

The cover is characterized in that it is formed of a high-strength synthetic resin of a translucent material to protect the support module and the LED module from external impact, and to maximize the light of the LED module to radiate to the pedestrian.

According to the present invention, by operating the heating module in the winter season when the temperature drops rapidly, it is possible to maintain the air inside the cover at a constant temperature required for smooth operation of the electrical device, thereby preventing damage and damage to the electrical device and malfunctioning. It has the effect of prolonging the service life while preventing it in advance.

1 is a perspective view showing a floor-type walking traffic light having an anti-freeze function according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view showing the inside of the floor-type walking traffic light shown in Figure 1;
3 is a perspective view showing a tube heater constituting a heating module of the floor-type walking traffic light shown in FIG. 1;
4 is a cross-sectional view showing the inside of a floor-type walking traffic light having an anti-freezing function according to a second embodiment of the present invention.
Figure 5 is a perspective view showing a heating module of the floor-type walking traffic light shown in Figure 4;
6 is a perspective view showing a frictional heat generating part of the heating module shown in FIG. 5;
7 is a cross-sectional view for explaining the heating principle of the floor-type walking traffic light according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

Example 1

1 and 2, the floor-type walking traffic light having an anti-freezing function according to the present invention includes a main body 100, a support module 200, an LED module 300, a cover 400, And includes a heating module (500).

At least one or more floor-type walking traffic lights according to the present invention are installed in a line at the boundary between the roadway and the sidewalk of the crosswalk, and these floor-type walking traffic lights have a structure that is controlled in conjunction with the crosswalk traffic lights.

The main body 100 is buried and installed at the boundary between a road and a sidewalk where a crosswalk is installed. A support module 200, an LED module 300, a cover 400, and a heating module 500 are installed in the body 100.

The support module 200 is installed in a horizontal state on the upper part of the main body 100 . The support module 200 is formed with a plurality of LED installation parts 210 inclined at a predetermined angle toward the pedestrian direction on the upper surface so that the plurality of LED modules 3 can be divided and installed. The LED installation unit 210 has a structure that is disposed long along the longitudinal direction at a predetermined interval from each other on top of the support module 200 .

The LED installation unit 210 is formed to be inclined at an angle of 10 degrees toward the pedestrian with respect to the horizontal plane so as to increase the visibility of the pedestrian without interfering with the driver's driving. Here, the reason why the LED installation part 210 is formed to be inclined at an angle of 10 degrees in the direction of the guide is that it must be designed to be inclined at 10 degrees in the direction of the sidewalk according to the standard guidelines for auxiliary devices for floor-type walking traffic lights passed by the National Police Agency in March 2019. to satisfy the requirements.

Here, the number of LED installation units 210 is not limited to the number shown in the drawing, and may be added or subtracted as needed when designing the structure of the floor-type walking traffic light.

The LED module 300 is installed in the LED installation part 210 of the support module 200 . This LED module 300 has a structure that is turned on in conjunction with a crosswalk traffic light. For example, the LED module 300 is controlled in conjunction with a crosswalk signal light to turn on in red when a vehicle signal is applied and to turn on in green when a walking signal is received.

The LED module 300 is divided and installed in the plurality of LED installation parts 210 formed on the upper part of the support module 200, and accordingly, the height deviation between the LED module 300 and the cover 400 can be minimized. Therefore, the light of the LED module 300 passing through the cover 400 is uniformly luminous over the entire area of the cover 400, so that glare of pedestrians or drivers can be prevented.

That is, the conventional LED module is formed as an integral structure and is installed at an angle of 10 degrees to the upper part of the main body. Due to this structure, a severe height deviation may occur between the inclined lower area and the inclined upper area of the LED module based on the cover. Inevitably, when the surface of the cover emits light, severe glare occurs on the surface of the cover corresponding to the inclined lower area of the LED module due to the height difference between the cover and the LED module, which not only causes inconvenience to pedestrians but also hinders the driver's driving. interfered

Therefore, in the present embodiment, the LED module 300 is divided and installed in the plurality of LED installation parts 210 formed in the support module 200 to minimize the height deviation between the LED module 300 and the cover 400, so that the cover 400 ), surface light emission of uniform luminance without glare can be achieved over the entire surface area of the cover 400.

The cover 400 is installed to completely cover the top of the main body 100 . The cover 400 has a diffusion pattern 410 having a concavo-convex structure capable of diffusing light emitted from the LED module 300 over the entire inner area. The diffusion pattern 410 has a structure in which the light of the LED module 300 passing through the cover 400 is refracted and reflected in a single direction and diffused widely.

Here, since the diffusion pattern 410 is a well-known technique widely applied by those skilled in the art, a detailed description thereof will be omitted.

The cover 400 has a plurality of non-slip protrusions 420 formed on the upper surface. The non-slip protrusion 420 protrudes from the surface of the cover 400 in an embossed structure, thereby preventing a pedestrian from slipping from rain or snow.

The cover 400 protects the support module 200 and the LED module 300 from external impact and is formed of high-strength synthetic resin of a translucent material so as to maximize the light emitted from the LED module 300 to pedestrians.

2 and 3, the heating module 500 is installed to maintain the internal air between the main body 100 and the cover 400 at a constant temperature in winter, a plurality of tube heaters 510, It includes a temperature sensor 520 and a controller 530.

A plurality of tube heaters 510 are installed at regular intervals under the support module 200 and generate heat according to the supply of power. To this end, the tube heater 510 has a structure in which a filament is formed by twisting a heating wire or carbon fiber in a spiral form, or a filament is formed by twisting a heating wire or carbon fiber in a lattice shape to form a vacuum inside a glass tube. .

The temperature sensor 520 is installed to measure the temperature within the cover 400 . That is, the temperature sensor 520 measures the temperature in the lid 400 in real time and transmits the measured temperature to the control unit 530 .

The controller 530 receives information from the temperature sensor 520 and controls the tube heater 510 to operate when the temperature inside the main body 100 and the cover 400 drops rapidly.

The heating module 500 configured as described above maintains the internal air between the main body 100 and the cover 400 at a constant temperature by the tube heater 510, the temperature sensor 520, and the control unit 530 during the winter season, thereby maintaining a floor type. It has a structure that can prevent freezing of electrical devices installed inside the pedestrian traffic light.

Here, although the tube heater 510 has been proposed as a heating means of the heating module 500, a planar heating element may be applied instead of the tube heater 510 as another embodiment of the present invention.

Hereinafter, an operating state of a floor-type walking signal light having an anti-freeze function according to an embodiment of the present invention will be described.

When the internal temperature between the main body 100 and the cover 400 drops rapidly due to external temperature changes in winter, electrical devices such as the LED module 300 are damaged and damaged due to the temperature drop, so that they cannot function properly. do.

When the above situation occurs, the temperature sensor 520 constituting the heating module 500 measures the internal temperature between the main body 100 and the cover 400 in real time and transmits it to the controller 530. The control unit 530 raises the internal temperature between the main body 100 and the lid 400 to a certain temperature or higher so as to stably operate the tube heater according to information from the temperature sensor 520 .

Accordingly, electrical devices such as the LED module 300 are prevented from malfunctioning or damage due to an increase in internal temperature between the main body 100 and the cover 400 and can be stably operated.

As described above, the floor-type walking traffic light having an anti-freezing function according to an embodiment of the present invention can maintain a stable temperature necessary for the operation of electrical devices by the heating module 500 in the winter season when the temperature drops rapidly. Malfunction or damage to electrical devices can be prevented.

Second embodiment

Referring to FIG. 4, the floor-type walking traffic light having an anti-freeze function according to the present embodiment includes a main body 100, a support module 200, an LED module 300, a cover 400, and a heating element. module 600.

Since the configuration of the body 100, the support module 200, the LED module 300, and the cover 400 is the same as that of the first embodiment of the present invention, hereinafter, the heating module 600 only to be explained.

Also, the heating module 600 has a structure using frictional heat, and has a different structure from the heating module 500 using the tube heater 510 described in the first embodiment of the present invention.

5 and 6, the heating module 600 is installed to maintain the internal air between the body 100 and the cover 400 at a constant temperature in the winter when the temperature drops rapidly, and the heating housing ( 610), a frictional heat generator 620, a heat sink 630, a temperature sensor 640, and a control unit 650.

The heating housing 610 is formed in a rectangular hollow shape with an open top and is installed between the main body 100 and the support module 200. A frictional heat generator 620 and a heat sink 630 are installed in the heating housing 610 . The temperature sensor 640 and the control unit 650 are installed inside the cover 400, and the temperature sensor 640 is electrically connected to the control unit 650.

The frictional heat generator 620 is installed to generate frictional heat inside the heating housing 610, and includes a drive shaft 622, a driven shaft 624, and a heat generating member 628.

The driving shaft 622 is installed to be connected to the driving motor 621 in the heating housing 610. That is, the drive shaft 622 has a structure in which the drive motor 621 operated under the control of the control unit 650 rotates to generate frictional heat.

The driven shaft 624 is installed so as to be adjacent to the drive shaft 622 inside the heating housing 610 . The driven shaft 624 is interlocked with the driving shaft 622 to rotate. At least two or more driven shafts 624 are installed inside the heating housing 610 . This is to maximize the heat dissipation effect of the heating housing 610, and the number of driven shafts 624 may be increased or decreased according to the installation environment of the floor-type walking traffic light.

Here, the drive shaft 622 and the driven shaft 624 are connected by gears or belts so as to rotate interlockingly, and the drive shaft and driven shaft of this embodiment have a structure connected via a gear 626. That is, a mutually meshing gear 626 is installed on the drive shaft 622 and the driven shaft 624, and thus the drive shaft 622 and the driven shaft 624 can be interlocked.

The heat generating member 628 is for generating frictional heat when the drive shaft 622 and the driven shaft 624 rotate. To this end, the heat generating member 628 is fixed to the heating housing 610 as a heat sink 400 so as to be coupled to the drive shaft 622 and the driven shaft 624 at regular intervals along the longitudinal direction. At this time, the heat generating member 628 may be formed as a bearing.

That is, when the driving shaft 622 and the driven shaft 624 rotate, the heat generating member 628 generates frictional heat by the heat generating member 628 and dissipates the frictional heat by the heat sink 630 to cover the cover 400. It has a structure that can maintain the internal air at a constant temperature required for the operation of electrical equipment.

The heat sink 630 is installed on the heating housing 610 to transfer the frictional heat generated in the heating housing 610 toward the support module 200 . That is, the heat dissipation plate 630 is installed to be charged inside the heating housing 610 so as to block the outflow of frictional heat generated by the frictional heat generating unit 620 to areas other than the support module 200 . Accordingly, while minimizing loss of frictional heat by the filling structure of the heat sink 630 , heat conduction is performed only through the heat sink 630 , thereby increasing heat dissipation efficiency. In this case, the heat sink 630 may be formed of copper or aluminum material having excellent thermal conductivity.

A heat transfer hole 632 capable of transferring heat in the heating housing 610 toward the support module 200 is formed on a surface of the heat sink 630 corresponding to the heat generating member 628 . Unlike the indirect method by the surface heat conduction of the heat sink 630, the heat transfer hole 632 can directly transfer frictional heat toward the support module 200, thereby further maximizing the heating effect.

The temperature sensor 640 is installed to measure the temperature in the cover 400. The temperature sensor 640 measures the temperature in the cover 400 in real time during the winter season and transmits it to the controller 650 .

The controller 650 is installed inside the cover 400 to be electrically connected to the temperature sensor 640. The controller 650 receives information from the temperature sensor 640 and controls the frictional heat generating unit 620 to operate when the temperature of the lid 400 drops rapidly. That is, when the internal temperature of the lid 400 drops rapidly, the control unit 650 operates the frictional heat generating member 628 to generate frictional heat, resulting in malfunction due to freezing or bursting of electrical devices mounted inside the floor-type walking signal light. This will prevent breakage.

In the present embodiment, a heating module using frictional heat is presented as a heating structure for preventing freezing and bursting of electrical devices, but as another embodiment of the present invention, a heating structure using a heater or a planar heating element may also be applied.

Hereinafter, the operating state of the floor-type walking signal light having an anti-freezing function according to the present invention will be described.

Referring to FIG. 7 , when the internal temperature of the floor-type walking traffic light drops rapidly due to a decrease in temperature in winter, the temperature sensor 640 measures the internal temperature of the cover 400 and transmits the measurement to the control unit 650.

The controller 650 receives information from the temperature sensor 640 and operates the frictional heat generating member 628 . Then, the frictional heat generating member 628 generates frictional heat from the heat generating member 628 according to the rotation of the drive shaft 622 and the driven shaft 624 .

The heat dissipation plate 630 gradually dissipates heat toward the support module 200 due to the temperature difference between the heating housing 610 and the cover 400, so that the internal temperature of the cover 400 is at a constant temperature due to the frictional heat of the frictional heat generating unit 620. can rise to Accordingly, electrical devices such as the LED module 300 are prevented from freezing and can be operated normally. At this time, the heat transferred to the cover 400 through the heat dissipation plate 630 is dissipated in an indirect manner by surface heat conduction and in a direct manner through the heat transfer hole 632, thereby maximizing the heat dissipation effect.

As described above, the floor-type walking traffic light having an anti-freeze function according to the present invention operates the heating module 600 during the winter season when the temperature drops rapidly to direct the air inside the cover 400 to the smooth operation of electrical devices. By being able to maintain a required constant temperature, it is possible to extend the service life while preventing malfunction by preventing damage and breakage of electrical devices.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should belong to the claims of the present invention.

100: body
200: support module
210: LED installation part
300: LED module
400: cover
410: diffusion pattern
420: non-slip protrusion
500: heating module
510: tube heater
520: temperature sensor
530: control unit

Claims (7)

A main body buried and installed at the boundary between a road and a sidewalk where a crosswalk is installed;
It has the same height as a whole, the bottom is installed horizontally on the inner upper part of the main body, and the upper part is formed with a plurality of LED installation parts having a structure that is repeatedly inclined at a predetermined angle toward the pedestrian direction;
LED modules each of which is separately installed in the LED installation part of the support module, and is turned on in conjunction with a crosswalk traffic light, and emits light toward a pedestrian by the LED installation part;
a cover installed to completely cover the upper part of the main body; and
It includes; a heating module capable of maintaining the internal air between the main body and the cover at a constant temperature in winter,
When the LED module emits light, the height deviation between the LED module and the cover is minimized by the shape and installation structure of the support module, so that the entire surface area of the cover has a uniform luminance without glare caused by light emitted from the LED module. A floor-type walking traffic light having an anti-freezing function, characterized in that light can be made .
According to claim 1,
The heating module,
A plurality of tube heaters installed under the support module at regular intervals and generating heat according to the supply of power;
a temperature sensor installed to measure the temperature within the cover; and
A floor-type walking traffic light having an anti-freezing function, characterized in that it comprises a; controller for receiving information from the temperature sensor and controlling the tube heater to operate when the temperature in the cover drops rapidly.
According to claim 2,
The tube heater,
Floor walking with anti-freeze function, characterized in that the filament is formed by twisting the heating wire or carbon fiber in a spiral form, or the filament is formed by twisting the heating wire or carbon fiber in a grid-like form and vacuum sealed inside the glass tube. Traffic Light.
According to any one of claims 1 to 3,
The LED installation part,
Floor-type walking traffic light, characterized in that it is disposed along the longitudinal direction at regular intervals from each other on the upper part of the support module, and the LED module is independently divided and installed in the LED installation part, so that individual replacement is possible in case of failure.
According to claim 1,
The LED installation portion is a floor-type walking traffic light, characterized in that formed to be inclined at an angle of 10 degrees in the pedestrian direction with respect to the horizontal surface so as to increase pedestrian visibility without interfering with the driving of the vehicle driver.
According to claim 1,
The cover has a diffusion pattern having a concavo-convex structure capable of diffusing light emitted from the LED module over the entire inner area, and a plurality of anti-slip protrusions are formed on the upper surface thereof to prevent pedestrians from slipping from rain or snow. Floor-type walking traffic lights, characterized in that being.
According to claim 1,
The cover is a floor-type walking traffic light, characterized in that formed of a high-strength synthetic resin of a translucent material to protect the support module and the LED module from external impact, and to maximize the light of the LED module to radiate to the pedestrian.