KR20150074579A - Ship luminaires used for pole environment - Google Patents

Abstract

The present invention relates to a heat generating structure of an LED lighting device for a polar environment, and more particularly, to a heat emitting structure of an LED lighting device for a polar environment, which comprises an LED light emitting part for integrating one or more LED chips on a substrate and emitting light when external power is supplied, And a glass bulb which is coupled to the case and protects the LED light emitting unit, the glass bulb being made of a transparent material having a lower opening,
And a heat transfer part extending from a lower periphery of the glass bulb to an inner central direction and being in contact with an upper surface of the substrate and having a center hole formed therein so that the LED chip penetrates through the glass bulb.
By transferring the heat to the glass bulb through the heat transfer part that is in direct contact with the substrate radiating through the LED chip, it is possible to stably prevent the icing phenomenon that may occur on the surface of the glass bulb when the ship is sailing under a subzero environment An excellent light output can be easily secured, and it can be used in a subzero environment.
Further, since the heat generated by the LED chip is transferred to the heat transfer part in a state where the heat loss to the outside is minimized by using the heat transfer panel, icing phenomenon that may occur on the surface of the glass sphere can be prevented more stably .
In addition, since it is possible to provide more excellent illuminance under the environment of the LED light emitting part, it can be effectively applied to a ship exposed to a sub-zero environment.

Description

{Ship luminaires used for pole environment}

[0001] The present invention relates to a heat generating structure of a ship LED lamp for polar environments, and more particularly, to a heat generating structure of a ship LED lamp for polar environments. More specifically, heat is transferred to a glass bulb through a heat transfer portion directly contacting with a substrate, The present invention relates to a heating structure of an LED lighting fixture for a polar environment, which can be used in a subzero environment by easily preventing an icing phenomenon that may occur on the surface of a glass sphere when navigating in an environment.

In general, incandescent lamps and fluorescent lamps are mainly used as luminaries used in ships. Incandescent lamps are used in ships operating at sub-zero temperatures, such as polar environments. The reason is that the incandescent lamp of the filament type which is turned on by the glow discharge is used for the fluorescent lamp because the lamp can not be lit at a temperature of minus 25 ° C. or less.

Further, the incandescent lamp is characterized in that the filament is irradiated with high-temperature radiant heat (about 2000 ° C.) around the filament, and the heat is used to prevent the incandescent lamp from being damaged It is possible to prevent the icing phenomenon and to prevent the light transmission from being interrupted due to icing so that the illuminance can be prevented from being lowered. Thus, it is widely used as a luminaire for a ship.

However, since the use life of the incandescent lamp is too short, frequent replacement of the incandescent lamp is required, which is very inconvenient to use and has a disadvantage in that it is not economical because of low energy efficiency.

In order to compensate for the above disadvantages of incandescent lamps and to consider the domestic circumstances in which the incandescent lamps are prohibited from being sold and imported to URANA in 2014, LEDs using LEDs as replacement lamps of the incandescent lamps are emerging.

However, since the lamp using the LED does not have any radiant heat, there is no means for preventing icing from occurring on the surface of the glass bulb, which is a problem in that it is difficult to use in a ship navigating in a subzero environment.

Therefore, it is urgent to develop an LED luminaire that can be easily applied to a ship navigating in a sub-zero environment.

The present invention has been proposed in order to solve the above-described problems, and it is an object of the present invention to provide a heat transfer device, in which heat is transferred to a glass bulb through a heat transfer portion directly contacting with a substrate, It is possible to stably prevent the icing phenomenon that may occur on the surface of the glass bulb during the sailing in the environment, thereby providing an excellent heat output of the LED lighting fixture for the polar environment, which can be applied in a subzero environment .

Furthermore, since the heat generated from the LED chip is transferred to the heat transfer part in a state in which the heat loss to the outside is minimized by using the heat transfer panel, the icing phenomenon that may occur on the surface of the glass ball can be prevented more stably. And to provide a heating structure of a ship LED lighting fixture.

In addition, it is possible to provide a more excellent illuminance in the environment of the LED light emitting part, and thus it is possible to effectively apply the present invention to a ship exposed to a sub-zero environment.

According to an aspect of the present invention, there is provided a heat emitting structure of an LED lighting fixture for a polar environment, comprising: an LED light emitting unit that emits light when at least one LED chip is integrated in a substrate and power is supplied thereto; And a glass bulb made of a transparent material that is coupled to the case and protects the LED light emitting unit, the lower portion of the glass bulb being transparent,

And a heat transfer part extending from a lower periphery of the glass bulb to an inner center direction and being in contact with an upper surface of the substrate, the center hole being formed at an inner center thereof so that the LED chip penetrates,

And the heat transferred to the substrate is transferred to the glass bulb through the heat transfer unit by contacting the heat conduction unit with the substrate radiating from the LED chip, thereby forming ice on the surface of the glass bulb in a zero- thereby preventing an ice accretion phenomenon.

A first heat transfer panel having excellent thermal conductivity is coated on the upper surface of the substrate in contact with the heat transfer portion to collect the heat of the substrate on the first heat transfer panel so as to minimize external loss And is conducted to the heat transfer portion.

Also, a second heat transfer panel having a high thermal conductivity is coated on the lower surface of the LED chip, which is in contact with the substrate, to rapidly collect heat emitted from the LED chip through the second heat transfer panel, .

The second heat conductive panel formed on the lower surface of the LED chip may be connected to a second heat conductive panel formed on another LED chip or may be connected to the first heat conductive panel and connected to the first heat conductive panel, So that the heat is transferred to the first heat transfer panel quickly and efficiently.

In addition, the heat transfer panel is formed of a ceramic material having excellent thermal conductivity.

As described above, according to the heating structure of the ship LED lighting device for polar environment according to the present invention, since the heat is transferred to the glass bulb through the heat transfer portion directly contacting with the substrate, the heat radiating through the LED chip is transmitted, It is possible to stably prevent the icing phenomenon that may occur on the surface of the glass sphere when navigating in the environment, thereby securing an excellent light output and applying it in a subzero environment.

Further, since the heat generated by the LED chip is transferred to the heat transfer part in a state where the heat loss to the outside is minimized by using the heat transfer panel, icing phenomenon that may occur on the surface of the glass sphere can be prevented more stably .

In addition, since it is possible to provide more excellent illuminance under the environment of the LED light emitting part, it can be effectively applied to a ship exposed to a sub-zero environment.

1 is a perspective view of a heating structure of an LED lighting fixture for polar environments according to an embodiment of the present invention;
Fig. 2 is an exploded perspective view of the heating structure of the ship LED lamp for the polar environment shown in Fig.
Figure 3 is an AA cross-sectional view of the heating structure of the ship LED fixture for polar environments shown in Figure 1
Fig. 4 is an explanatory view showing the state of use of the heating structure of the ship LED lamp for the polar environment shown in Fig. 1

The heating structure of a ship LED lighting fixture for polar environments according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Detailed descriptions of well-known functions and constructions that may be unnecessarily obscured by the gist of the present invention will be omitted.

FIG. 1 is a perspective view of a heating structure of an LED lighting fixture for polar environments according to an embodiment of the present invention, FIG. 1 is a perspective view of a heat emitting structure of an LED lighting fixture for a polar environment, Fig. 2 is an exploded perspective view of the heat generating structure of the LED lighting fixture for polar environment shown in Fig. 1, Fig. 3 is an AA sectional view of the heating structure of the LED lighting fixture for polar environment shown in Fig. 1, And the state of use of the heating structure of the LED lighting fixture for the polar environment shown in FIG.

As shown in the drawing, the heat generating structure 100 of a ship LED lighting device for polar environments according to an embodiment of the present invention is characterized in that one or more LED chips 1b are integrated on a substrate 1a, A case 2 in which the LED light emitting part 1 is embedded and a case 2 which is coupled to the case 2 to protect the LED light emitting part 1, In a ship luminaire including a glass ball (3) made of a material,

And a center hole 11 is formed at an inner center of the glass bulb 3 so that the LED chip 1b penetrates through the center of the glass bulb 3, (10).

That is, as shown in FIG. 4, when the LED light emitting unit 1 is turned on and heat is emitted from the LED chip 1b, heat is conducted from the substrate 1a on which the LED chip 1b is integrated, The substrate 1a and the heat transfer portion 10 are in direct contact with each other to conduct heat and conduct the heat to the glass bulb 3 so that ice can be generated on the surface of the glass bulb 3 in a zero- thereby preventing the phenomenon of ice accretion so that the light source of the LED light emitting unit 1 is easily provided to the periphery.

2 and 3, a first heat transfer panel 20 having excellent thermal conductivity is formed on the upper surface of the substrate 1a in contact with the heat transfer portion 10,

As shown in FIG. 4, the heat of the substrate 1a is quickly conducted to the heat transfer unit 10 by being conducted by the first heat transfer panel 20, It is preferable that the icemaking phenomenon of the glass bulb 3 is more effectively prevented by inducing efficient heat conduction which minimizes loss to the outside in the process of being conducted to the glass bulb 10.

As shown in FIGS. 2 and 3, a second heat transfer panel 30 having a high thermal conductivity is further formed on the lower surface of the LED chip 1b, which is in contact with the substrate 1a,

The heat emitted from the LED chip 1b is rapidly collected through the second heat conductive panel 30 and transferred to the substrate 1a as shown in FIG. It is possible to induce efficient heat conduction in which loss to the outside is minimized in the process of heat conduction to the substrate 1a.

2 and 3, the second heat conductive panel 30 formed on the lower surface of the LED chip 1b includes a second heat conductive panel 30 formed on the other LED chip 1b, 4, the heat emitted from the LED chip 1b is transmitted to the first heat conductive panel 20 through the heat conductive panels 20, 30 more quickly And is efficiently transferred to the heat transfer portion 10 so as to be conducted to the glass bulb 3.

Here, the heat conductive panels 20 and 30 are made of a ceramic material having excellent thermal conductivity. However, the heat conductive panels 20 and 30 are not limited to this, and carbon or aluminum materials having excellent thermal conductivity may be selectively used. Of course.

The heat generating structure 100 of the ship LED lighting device for polar environments according to the present invention having the above-described components has a structure in which the heat transfer portion 10 (not shown) directly contacting the substrate 1a on which the heat radiated through the LED chip 1b is conducted, (3), it is possible to stably prevent the icing phenomenon that may occur on the surface of the glass bulb (3) when the ship sails in a subzero environment, thereby facilitating excellent light output So that it can be used in a sub-zero environment.

Furthermore, since the heat generated by the LED chip 1b is rapidly conducted to the heat transfer part 10 in a state in which heat loss to the outside is minimized by using the heat transfer panels 20 and 30, 3) can be prevented more stably.

In the meantime, since the LED light source can provide more excellent illuminance in a sub-zero environment as shown in the following figure, the heating structure 100 of the LED lighting unit for the polar environment of the present invention is very useful for ships exposed to sub- It is advantageous to apply it effectively.

[Pic] Roughness characteristics according to temperature

The heating structure 100 of an LED lighting fixture for polar environments according to an embodiment of the present invention having the above structure operates as follows.

First, as shown in FIG. 4, when the LED light emitting unit 1 is turned on and heat is emitted from the LED chip 1b, heat is conducted from the substrate 1a on which the LED chip 1b is integrated, The heat transfer part 10 which is in direct contact with the glass substrate 1a conducts heat to the glass bulb 3 to conduct ice accretion which may occur on the surface of the glass bulb 3 in a zero- So that the light source of the LED light emitting unit 1 is easily irradiated to the periphery.

4, a first heat transfer panel 20 positioned between the substrate 1a and the heat transfer portion 10, and a second heat transfer panel 20 disposed between the substrate 1a and the LED chip 1b. The heat generated by the LED chip 1b can be promptly and efficiently conducted to the heat transfer portion 10 by the heat transfer panel 30 to thereby reliably prevent icing on the surface of the glass bulb 3.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. You will understand the point. It goes without saying that variations can be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the scope of claim of the present invention is not limited within the scope of the detailed description, but will be defined by the following claims and technical ideas thereof.

1. Light emitting portion 1a. Board
1b. LED chip 2. Case
3. Glass ball
10. Heat transfer part 11. Center hole
20. First heat transfer panel 30. Second heat transfer panel
100. Heating structure of LED light fixture for polar environment

Claims (5)

A case 2 in which the LED light emitting part 1 is housed, and a case 2 in which one or more LED chips 1b are integrated on the substrate 1a to emit light when external power is supplied. And a glass bulb (3) made of a transparent material, which is coupled to the LED light emitting part (1) to protect the LED light emitting part (1)
And a center hole 11 is formed at an inner center of the glass bulb 3 so that the LED chip 1b penetrates through the center of the glass bulb 3, (10)
The heat transferred from the LED chip 1b to the substrate 1a and the heat transfer portion 10 are transferred to the substrate 1a through the heat transfer portion 10, 3 so as to prevent the occurrence of ice accretion on the surface of the glass bulb 3 in an environment of zero temperature.
The method according to claim 1,
A first heat transfer panel 20 having excellent thermal conductivity is coated on the upper surface of the substrate 1a in contact with the heat transfer portion 10,
Wherein heat of the substrate (1a) is quickly collected in the first heat transfer panel (20) so as to minimize external loss and is conducted to the heat transfer part (10).
3. The method of claim 2,
A second heat conductive panel 30 having a high thermal conductivity is formed on a lower surface of the LED chip 1b in contact with the substrate 1a,
And the heat emitted from the LED chip (1b) is quickly collected through the second heat transfer panel (30) and transferred to the substrate (1a).
The method of claim 3,
The second heat conductive panel 30 formed on the lower surface of the LED chip 1b is connected to or connected to the second heat conductive panel 30 formed on the other LED chip 1b, 20 so that the heat emitted from the LED chip 1b can be quickly and efficiently conducted to the first heat transfer panel 20.
The method of claim 3,
The heat transfer panels (20, 30)
Wherein the heat emitting structure of the ship LED lighting device for polar environments is formed of a ceramic material having excellent thermal conductivity.

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