KR102269189B1 - LED floor traffic lights with excellent airtightness - Google Patents

Abstract

An objective of the present invention is to prevent damage and breakage of electrical components due to penetration of moisture into the housing, and to significantly extend the service life of a device. The present invention relates to an LED floor traffic light with the excellent airtightness. More specifically, the LED floor traffic light with excellent airtightness according to an embodiment of the present invention includes a housing (1) made of a transparent material, and a PCB board (2) on which an LED chip is integrated.

Description

LED floor traffic lights with excellent airtightness

The present invention relates to an LED floor traffic light having excellent airtightness, and more particularly, moisture and moisture penetrating from the outside as the molding material filled inside the housing is molded while being filled with the molding groove of the airtight member, the molding groove and the molding thereof It is primarily blocked through the molding material filled in the groove, and through the airtight packing formed around the PCB board, excellent airtightness is secured between the airtight member and the PCB board to prevent the penetration of moisture and moisture into the PCB board inside the housing. It relates to an LED floor traffic light with excellent airtightness that can significantly extend the service life of the device by stably preventing damage and breakage of electrical components through ingress of moisture into the housing by blocking it progressively.

In general, a crosswalk is to allow a vehicle to safely cross a road, and is mainly provided at an intersection of a road or other places where there are many road crossings.

A crosswalk traffic light that can periodically display a stop signal and a crosswalk signal is installed in such a crosswalk, and the crosswalk traffic light is installed at a constant height from the floor through a pole.

Although the crosswalk traffic light is installed at the pedestrian's eye level, it is possible to check the signal only when the head is raised, so for example, a pedestrian using a mobile phone with their head down frequently does not recognize the change in the signal quickly. In this case, pedestrians cannot cross despite the crossing signal, or they cross quickly after recognizing the crossing signal and collide with a vehicle frequently.

In order to solve the above problems, in recent years, LED floor traffic lights that are controlled in conjunction with crosswalk traffic lights have been embedded in the floor of the crosswalk so that pedestrians who are bowing their heads can clearly and quickly recognize the change in the signal of the traffic light.

This conventional LED floor traffic light closes the inside of the housing in which the PCB substrate is located from the outside in such a way that the PCB substrate on which the LED chip is integrated is placed inside the housing of a transparent material, and then the molding material is filled in the housing. fixed.

Here, the reason for closing the housing by molding is to prevent the PCB substrate, which is an electrical component, from being damaged or damaged due to moisture, moisture, etc. penetrating from the outside.

However, since the conventional LED floor traffic light has a structure that closes the inside of the housing by molding, it is repeatedly exposed to the temperature difference between day and night and the temperature difference according to the season for a long period of time, and the shrinkage and expansion are repeated, resulting in deformation of the molding. Infiltration of moisture and moisture into the gap between the housing and the molding could not be prevented, so there was a problem in that the service life of the device was rather short.

The present invention has been proposed to solve the various problems as described above, and its object is to prevent moisture and moisture penetrating from the outside due to the molding material being filled inside the housing being molded while being filled with the molding groove of the airtight member; It is first blocked through the molding material filled in the molding groove, and through the airtight packing formed around the PCB board, excellent airtightness is secured between the airtight member and the PCB board, and moisture and moisture are penetrated into the PCB board inside the housing. It is to provide an LED floor traffic light with excellent airtightness that can significantly extend the service life of the device by stably preventing damage and breakage of electrical components through the penetration of moisture into the housing by secondary blocking the device.

In addition, even if a gap occurs between the housing and the molding due to the aging of the molding due to long-term use, the penetration of moisture can be prevented through a number of extension protrusions or extension grooves formed in the molding groove, thereby securing the service life of the device more effectively. It is to provide an LED floor traffic light having excellent airtightness.

In addition, excellent durability and strength of the device secured through the reinforcing rib formed on the housing, and the heat sink formed on the housing to release the high-temperature heat source generated from the PCB substrate, the structure and safety of the device can be secured. It is to provide an LED floor traffic light having airtightness.

The LED floor traffic light having excellent airtightness according to the present invention for achieving the above object includes a housing made of a transparent material having a space therein, but having an open lower part, and an LED chip embedded in the housing to emit a light source to the surroundings. In the LED floor traffic light comprising a PCB board to be integrated, the inside of the housing is molded so that the PCB board built into the housing is closed from the outside,

It is composed of a protruding piece extending downwardly from the upper portion of the housing, and a step formed around the inner circumference of the protruding piece so that the PCB substrate can be placed,

The protruding piece extends apart from the inner surface of the housing so that a sealing member is formed between the protruding piece and the housing inner surface;

When the PCB substrate is closed from the outside by molding into the housing, the molding material is naturally filled and cured into the molding groove, so that the inside and the outside of the housing in which the PCB substrate is located are more firmly closed.

In addition, it is formed to surround the periphery of the PCB substrate, a rubber material sealing in close contact with the step on which the PCB substrate is placed; characterized in that it is configured to further include.

In addition, the heat sink is closely attached to the lower portion of the airtight member and molded together with the PCB substrate;

It is characterized in that the heat sink has a plurality of holes through which the molding material is distributed so that the molding material filled into the housing can be evenly filled into the housing.

In addition, a plurality of extension protrusions or extension grooves vertically spaced apart from each other are formed on one surface of the protruding piece forming the molding groove and the inner surface of the housing.

In addition, a plurality of reinforcing ribs are further formed on the inner surface of the molding groove.

In addition, binding means for inducing stable fixing of the LED floor traffic light buried in the ground by firmly binding the housing;

The binding means supports the housing to be seated on the upper surface, and is formed to extend vertically on both sides of the binding frame, and is in close contact with both sides of the housing seated on the upper side to form side adhesion plates to prevent left and right shaking of the housing; Doedoe extending outwardly from both lower sides of the housing, one or more binding pieces having binding protrusions protruding upwards are formed on the upper end of the housing, and formed on the side contact plate, the housing being seated with the binding frame. A guide path penetrating vertically through the side contact plate is formed so that the binding piece does not interfere with the side contact plate, and a binding path communicating with the guide path is formed in the horizontal direction at the lower portion of the guide path, It is characterized in that the end is configured to include one or more fixing paths in which a binding groove is formed in which the binding protrusion of the binding piece is internally bound.

In addition, a deformation compensation groove of a “∽” shape is further formed on the lower surface of the molding formed inside the housing.

As described above, according to the LED floor traffic light having excellent airtightness according to the present invention, the molding material filled inside the housing is molded while being filled with the molding groove of the airtight member, so that moisture and moisture penetrating from the outside are absorbed into the molding groove and the molding thereof. It is primarily blocked through the molding material filled in the groove, and through the airtight packing formed around the PCB board, excellent airtightness is secured between the airtight member and the PCB board to prevent the penetration of moisture and moisture into the PCB board inside the housing. It is possible to stably prevent damage and breakage of electrical components due to the penetration of moisture into the housing by blocking it gradually, which has the effect of significantly extending the service life of the device.

In addition, even if a gap occurs between the housing and the molding due to the aging of the molding due to long-term use, the penetration of moisture can be prevented through a number of extension protrusions or extension grooves formed in the molding groove, thereby securing the service life of the device more effectively. can have an effect.

In addition, the excellent durability and strength of the device secured through the reinforcing rib formed on the housing, and the heat sink formed on the housing to release the high-temperature heat source generated from the PCB substrate, the structure and safety of the device can be secured there is

1 is a perspective view of an LED floor traffic light having excellent airtightness according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of the LED floor traffic light having excellent airtightness shown in Figure 1;
3 is an AA cross-sectional view of the LED floor traffic light having excellent airtightness shown in FIG.
4 is a view showing an LED floor traffic light having excellent airtightness according to another embodiment of the present invention;
5 is a view showing an LED floor traffic light having excellent airtightness according to another embodiment of the present invention;
6 is a state diagram of the LED floor traffic light having excellent airtightness shown in FIG.

An LED floor traffic light having excellent airtightness according to a preferred embodiment of the present invention will be described in detail based on the accompanying drawings. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the gist of the present invention will be omitted.

1 to 6 show an LED floor traffic light having excellent airtightness according to an embodiment of the present invention, FIG. 1 is a perspective view of an LED floor traffic light having excellent airtightness according to an embodiment of the present invention, FIG. 1 is an exploded perspective view of the LED floor traffic light having excellent airtightness shown in Fig. 3 is an AA cross-sectional view of the LED floor traffic light having excellent air tightness shown in Fig. 1, Fig. 4 is an excellent airtightness according to another embodiment of the present invention 5 is a view showing an LED floor traffic light having an excellent airtightness according to another embodiment of the present invention, FIG. 6 is an LED floor traffic light having excellent air tightness shown in FIG. Each of the usage status diagrams is shown.

As shown in the drawing, the LED floor traffic light 100 having excellent airtightness according to an embodiment of the present invention includes a housing 1 made of a transparent material having a space therein, but having an open lower portion, and the housing 1 It is built in and configured to include a PCB board 2 on which an LED chip emitting a light source is integrated, the inside of the housing 1 is molded 3 and the PCB board 2 built into the housing 1 ) in the LED floor traffic light to be closed from the outside,

It is composed of a protruding piece 11 extending from the top to the bottom inside the housing 1, and a step 12 formed around the inner circumference of the protruding piece 11 so that the PCB substrate 2 can be placed. ,

The protruding piece 11 extends apart from the inner surface of the housing 1 to form an airtight member 10 such that a molding groove 13 is formed between the protruding piece 11 and the inner surface of the housing 1; consists of,

When the PCB substrate 2 is closed from the outside by molding (3) into the housing (1), the molding material is naturally filled and cured into the molding groove (13), and the PCB substrate (2) is located in the housing (1) Make the inside and outside of the enclosure more tightly closed.

Here, in order to mold the inside of the housing 1 as shown in FIG. 6b , the PCB board 2 is formed by filling the molding material in a state where the housing 1 is turned over and the open lower part is exposed to the upper part. The inside of the disposed housing 1 is completely closed from the outside, and at this time, the filling molding material is naturally filled and hardened while flowing into the molding groove 13 of the airtight member 10 .

Accordingly, as shown in FIG. 6c , in order for external moisture (moisture, etc.) to penetrate into the inside of the housing 1 in which the PCB substrate 2 is accommodated, the molding groove 13 of the airtight member 10 is filled with a molding material. ), it is very difficult for external moisture to penetrate inside the housing, so that the electrical PCB board 2 is damaged through dew condensation that may occur inside the housing 1 due to moisture. problems can be safely avoided.

In addition, since the PCB substrate 2 is stably seated on the step 12 of the airtight member 10 and cured while the molding material is filled, the position of the PCB substrate 2 is deformed in the process of filling the molding material By preventing the phenomenon in advance, excellent product quality can be secured.

On the other hand, as shown in Figs. 2 and 3, the rubber material airtight packing 20 is formed to surround the periphery of the PCB substrate 2 and is in close contact with the step 12 on which the PCB substrate 2 is placed. It consists of further including ;.

That is, by improving the airtightness between the airtight member 10 and the PCB board 2 through the airtight packing 20 formed on the periphery of the PCB board 2 as shown in FIG. 6c , the airtight member By firmly preventing moisture from penetrating between (10) and the PCB substrate (2), it is possible to effectively prevent damage to the PCB substrate (2) due to moisture more stably.

On the other hand, as shown in Figs. 2 and 3, the heat sink 30 that is in close contact with the lower portion of the airtight member 10 and is molded (3) together with the PCB substrate 2;

A plurality of holes 31 through which the molding material is distributed are formed in the heat sink 30 so that the molding material filled with the housing 10 can be evenly filled into the housing 1 .

That is, as shown in FIG. 6D , the heat sink 30 receives the high-temperature heat source generated from the PCB substrate 2 and conducts it to the molding 3 formed in the housing 1, and the molding 3 Through this, the heat source of the PCB substrate 2 is induced to be effectively discharged to stably prevent overheating of the PCB substrate 2 .

Here, the heat sink 30 is preferably positioned close to the PCB board 2 in order to effectively conduct heat from the PCB board 2 , and the heat sink 30 is made of an aluminum material having excellent thermal conductivity. ham is good

On the other hand, as shown in FIGS. 2 and 3 , on one surface of the protruding piece 11 forming the molding groove 31 and the inner surface of the housing 1, a plurality of extension protrusions ( 40) or an extension groove is further formed.

That is, when the LED floor traffic light 100 is used for a long period of time, the molding 3 filled in the housing 1 by the external temperature difference (day and night temperature difference, temperature difference according to season, etc.) ) is repeatedly contracted and expanded while the molding 3 is deformed or damaged, so that minute gaps may occur in the molding grooves 13, and these gaps cause penetration of moisture into the housing 1 .

At this time, as shown in FIG. 6D , the length of the path through which moisture must pass through the molding groove 13 is greatly increased by the plurality of extension protrusions 40 or extension grooves formed on the molding groove 13 . By increasing it, it prevents the smooth penetration of moisture that has penetrated into the molding groove 13 to more safely prevent the penetration of moisture into the housing 1 .

Meanwhile, as shown in FIGS. 2 and 3 , a plurality of reinforcing ribs 50 are further formed on the inner surface of the molding groove 13 .

Here, the LED floor traffic light 100 having excellent airtightness of the present invention can be easily damaged or damaged by the impact caused by being stepped on by a person passing the traffic light or a motorcycle, etc., due to the nature of being buried and exposed in the ground, the reinforcement rib (50) ) by strengthening the durability and strength of the housing 1 exposed to the outside through the LED floor traffic light 100 having excellent airtightness of the present invention is induced to be used stably for a long time.

On the other hand, as shown in Fig. 4, by firmly binding the housing (1) to the binding means (60) for inducing stable fixing of the LED floor traffic light buried in the ground;

The binding means (60) supports the housing (1) seated on the upper surface, but is vertically extended on both sides of the housing (1) and is in close contact with both sides of the housing (1) seated on the upper surface to shake the housing (1) from side to side A binding frame 61 on which a side contact plate 611 is formed to prevent . , and a binding protrusion 621 protruding upwardly on the upper end of the end is formed extending outward from both sides of the lower portion of the housing 1 . One or more binding pieces 62 and the binding pieces 62 of the housing 1 that are formed on the side adhesion plate 611 and seated on the binding frame 61 are the side adhesion plates 611 ). A guide path 631 penetrating vertically through the side contact plate 611 is formed so as not to interfere with the side contact plate 611 , and a binding path 632 communicating with the guide path 631 is horizontally formed at a lower portion of the guide path 631 . It is formed in the direction, and the end of the binding path 632 includes at least one fixing path 63 in which a binding groove 632a into which the binding protrusion 621 of the binding piece 62 is internally coupled is formed. .

That is, in the process in which the housing 1 is disposed and seated on the binding frame 61 , the binding piece 62 of the housing 1 guides the fixing path 63 formed on the side contact plate 611 . It descends on the furnace 631 so that the housing 1 is seated and disposed on the binding frame 61 without interference of the side contact plate 611,

Thereafter, the housing 1 is transported horizontally so that the binding piece 62 of the housing 1 enters the binding path 632 of the fixing path 63 to bind, but the binding piece 62 is The binding protrusion 621 is internally and bound to the binding groove 632a of the binding path 632 so that the housing 1 is very firmly bound and fixed to the fixing path 63 through the binding piece 62 . .

Therefore, even if the LED floor traffic light 100 of the present invention exposed to the outside is pressurized to a high weight or exposed to an impact, it is firmly fixed to the binding frame 61 through the binding means 60 for firmly binding the housing 1 Since this is maintained, a phenomenon in which the position of the LED floor traffic light 100 is changed can be stably prevented.

Furthermore, the housing 1 bound to the binding frame 61 is firmly supported on the side through the side contact plate 611 to stably prevent the housing 1 from being deformed in the left and right directions. It is possible to more firmly fix the position of the LED floor traffic light 100 .

Meanwhile, as shown in FIG. 5 , a deformation compensation groove 70 in the shape of “∽” is further formed on the lower surface of the molding formed inside the housing 1 .

That is, a phenomenon in which the molding filled in the housing 1 through the deformation compensation groove 70 contracts and expands minutely due to the external temperature difference (day and night temperature difference, temperature difference according to season, etc.) By compensating, it is possible to minimize deformation or damage to the molding 3 due to repeated contraction and expansion of the molding 2, thereby guiding the device to be used stably for a long period of time.

The LED floor traffic light 100 having excellent airtightness of the present invention having the configuration as described above is molded (3) while the molding material filled in the housing (1) is filled with the molding groove (13) of the airtight member (10). The airtight packing formed on the periphery of the PCB substrate 2 by first blocking moisture and moisture penetrating from the outside through the molding groove 13 and the molding material filled in the molding groove 13 . Through (20), excellent airtightness between the airtight member 10 and the PCB board 2 is secured to secondarily block the penetration of moisture and moisture into the PCB board 2 inside the housing, and the housing (1) It has the effect of significantly extending the service life of the device as it can stably prevent damage and breakage of electrical components through penetration of moisture into the interior.

In addition, even if a gap occurs between the housing 1 and the molding 3 due to the aging of the molding 3 due to long-term use, a plurality of the extension protrusions 40 or extension grooves formed in the molding groove 13 are removed. It is possible to prevent the penetration of moisture through the device, so it has the effect of securing the service life of the device more effectively.

In addition, excellent durability and strength of the device secured through the reinforcing rib 50 formed in the housing 1, and the high temperature heat source formed in the housing 1 and generated in the PCB substrate 2 There is an effect of securing the structure and safety of use of the device through the heat sink 30 .

The LED floor traffic light 100 having excellent airtightness according to an embodiment of the present invention having the above configuration is manufactured and used as follows.

First, as shown in Fig. 6a, in a state in which the housing 1 is turned over so that the lower part of the housing 1 is opened to the upper part, the airtight packing 20 is formed around the step 12 of the airtight member 10. After the substrate 2 is seated, the heat dissipation plate 30 is placed in close contact with the upper portion of the airtight member 10 .

Then, as shown in FIG. 6B , the PCB substrate 2 and the heat sink 30 positioned in the housing 1 are firmly secured through the molding 3 by filling the inside of the housing 1 with a molding material. to be fixed, but to be firmly closed from the inside and outside of the housing 1 in which the PCB substrate 2 is located through the molding 3 while the molding material is filled in the molding groove 13 of the airtight member 10 To complete the production of the LED floor traffic light 100 having an excellent airtightness of the present invention.

Here, the PCB substrate 2 is stably seated on the step 12 of the airtight member 10 so that the position is fixed during the molding process, of course.

When the LED floor traffic light 100 having excellent airtightness manufactured as described above is buried in the ground, as shown in FIG. 6c , the molding groove 13 of the airtight member 10 and the molding groove 13 The airtight member 10 primarily prevents external moisture from penetrating into the housing 1 through the filled watering material, and through the airtight packing 20 formed around the PCB substrate 2 . ) and the PCB substrate (2) by preventing moisture from penetrating into the PCB substrate (2) inside the housing (1) secondarily through excellent airtight maintenance, thereby preventing damage or damage to the electrical device due to moisture to prevent

In addition, as shown in FIG. 6D , a plurality of extension protrusions 40 or extensions formed in the molding groove 13 even if moisture penetrates due to a gap between the molding groove 13 and the molding material due to long-term use. Due to the penetration path of moisture greatly extended by the groove, it is possible to prevent the smooth penetration of moisture, thereby minimizing the penetration of moisture into the housing (1), and the PCB substrate (2) through the heat sink (30). By inducing stable external heat dissipation of the device, it is possible to induce stable use of the device.

Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, which are illustrative and not limited to the above-described embodiments, those of ordinary skill in the art will realize that various modifications and equivalent embodiments are possible therefrom. point can be understood. In addition, it is a matter of course that modifications by those skilled in the art are possible within the scope that does not impair the spirit of the present invention. Accordingly, the scope of claiming the right in the present invention will not be defined within the scope of the detailed description, but will be limited by the claims and its technical spirit to be described later.

1. Housing 2. PCB board
3. Molding
10. Airtight member 11. Protrusion
12. Step 13. Molding groove
20. Airtight packing 30. Heat sink
31. Hole 40. Protrusion
50. Reinforcing ribs 60. Coupling means
61. Binding Frame 611. Side Adhesion Plate
62. Binding piece 621. Binding projection
63. Jeongjeong-ro 631. Guide-way
632. Gyeolgyeol-ro 632a. bond home
70. Deformation compensation groove
100. LED floor traffic light with good airtightness

Claims (7)

It is configured to include a housing (1) made of a transparent material having a space therein but having an open lower part, and a PCB board (2) on which an LED chip that is built in the housing (1) and emits a light source to the periphery is integrated, the In the LED floor traffic light that the inside of the housing (1) is molded (3) so that the PCB board (2) embedded in the housing (1) is closed from the outside,
It is composed of a protruding piece 11 extending from the top to the bottom inside the housing 1, and a step 12 formed around the inner circumference of the protruding piece 11 so that the PCB substrate 2 can be placed. ,
The protruding piece 11 extends apart from the inner surface of the housing 1 to form an airtight member 10 such that a molding groove 13 is formed between the protruding piece 11 and the inner surface of the housing 1; consists of,
When the PCB substrate 2 is closed from the outside by molding (3) into the housing (1), the molding material is naturally filled and cured into the molding groove (13), and the PCB substrate (2) is located in the housing (1) LED floor traffic light with excellent airtightness, characterized in that the inside and outside of the closure are more tightly closed.
The method of claim 1,
Excellent characterized in that it further comprises a; is formed to surround the periphery of the PCB substrate (2) and is made of a rubber material that is in close contact with the step (12) on which the PCB substrate (2) is placed. LED floor traffic light with airtightness.
The method of claim 1,
The heat dissipation plate 30 which is in close contact with the lower portion of the airtight member 10 and is molded (3) together with the PCB substrate 2;
The heat sink 30 has excellent airtightness, characterized in that a plurality of holes 31 through which the molding material is distributed are formed so that the molding material filled with the housing 10 can be evenly filled into the housing 1 LED floor traffic lights.
The method of claim 1,
A plurality of extension protrusions 40 or extension grooves formed vertically spaced apart around one surface of the protruding piece 11 forming the molding groove 31 and the inner surface of the housing 1 are further formed. LED floor traffic light with excellent airtightness.
The method of claim 1,
A plurality of reinforcing ribs (50) are further formed on the inner surface of the molding groove (13).
The method of claim 1,
Binding means (60) for inducing stable fixing of the LED floor traffic light buried in the ground by firmly binding the housing (1);
The binding means 60,
A side contact plate that supports the housing 1 seated on the upper surface, but extends vertically on both sides and is in close contact with both sides of the housing 1 seated on the upper side to prevent left and right shaking of the housing 1 ( A binding frame 61 in which 611 is formed, and
One or more binding pieces 62 extending outward from both sides of the lower portion of the housing 1, and having a binding protrusion 621 protruding upwardly on the upper end of the end;
It is formed on the side contact plate 611, so that the binding piece 62 of the housing 1 seated on the binding frame 61 does not interfere with the side contact plate 611, the side contact plate ( A guide path 631 penetrating vertically 611 is formed, and a binding path 632 communicating with the guide path 631 is formed at a lower portion of the guide path 631 in the horizontal direction, the binding path ( LED having excellent airtightness, characterized in that it comprises one or more fixing furnaces 63 in which a binding groove 632a into which the binding protrusion 621 of the binding piece 62 is internally and bound is formed at the end of the 632). floor traffic lights.
The method of claim 1,
An LED floor traffic light having excellent airtightness, characterized in that the housing (1) is further formed with a deformation compensation groove (70) in the shape of "∽" on the lower surface of the molding formed inside the housing (1).

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