KR101115316B1 - illumination lamp case for light emitting diode of light source - Google Patents

Abstract

The present invention relates to a lamp case using a light emitting diode as a light source.
The present invention disclosed in the LED lighting and the like consisting of a body provided with a heat sink and the optical module portion, and a transparent cover coupled to the lower surface of the body to transmit the light of the optical module portion to the ground, at least one through opening is formed on the top A top cover coupled to an upper portion of the body to cover a heat sink from the outside; Removably coupled to the through-opening to include a cover plate for discharging the high heat of the internal space provided by the body and the top cover to the outside and blocking the inflow of foreign matter, the top cover, at least on both side walls facing each other It is arranged at equal intervals, characterized in that it comprises an air flow inlet and discharge the outside air to make the heat exchange with the heat sink in the interior space provided by the body and the top cover.
As such, the high heat generated when the LED emits heat is exchanged with the cold air that flows in through the air distribution unit, and then quickly discharged to the outside to maximize heat dissipation efficiency. There is an advantage to be cut off from the plate.

Description

Illumination lamp case for light emitting diode of light source}

The present invention relates to, for example, a lighting fixture such as a street lamp or a security lamp installed in a roadway, sidewalk, and a park, and more particularly, a light emitting diode (LED) (hereinafter referred to as an LED) is a light source. In the luminaire used for lighting, high heat generated when LED is emitted is quickly dissipated into the atmosphere without staying in the case, while blocking the inflow of external moisture and foreign substances, thereby preventing the LED from being exposed to high heat and electrical shorts. The present invention relates to a light case for an LED light source that prevents burnout, shortening of life and malfunction.

In general, in the roads where cars are driven and in human walks, it is possible to make traffic safe at night while making it easier to identify the pia. Halogen lamps for crime prevention and night scenes in parks, back roads, and multi-generational buildings. Light fixtures such as mercury lamps, sodium lamps, metal halide lamps or street lamps or security lamps are installed at regular intervals.

Lighting fixtures using such lamps are a high-voltage discharge type requiring complex structures such as inverter circuits and ballasts, and the demand is also rapidly falling due to low brightness and short lifespan as compared to high power consumption.

To this end, compared to light sources using high-voltage discharge in recent years, it has a long lifespan, low power consumption, high luminance of light, and structurally safe light of various colors such as red, green, blue, etc. Monochromatic light can generate white light, and since mercury and other discharge gas are not used, many lighting lamps using environmentally friendly LEDs (LEDs) as light sources have been proposed and implemented in various forms.

In general, such a conventional lighting device having an LED as a light source is generally composed of a combination of an optical module unit, a body, a top cover, a transparent cover, etc., which are composed of a plurality of LEDs. For example, a heat sink made of aluminum (Al) is attached, and the heat sink made of aluminum absorbs and radiates high heat generated from the optical module unit, thereby maintaining the function of the LED above a certain level and preventing the burnout of the LED. It plays a role.

In addition, the lower surface of the body is, for example, a transparent cover made of polyester (PET) or glass material is installed, such a transparent cover is combined in a shape surrounding the body with the top cover, rain water, dust, pests, etc. By blocking inflow of foreign matter into the lamp case in advance, it serves to prevent the burnout and safety accident of the optical module unit due to electrical short circuit.

However, as described above, the top cover and the transparent cover of the lighting fixture using the conventional LED as a light source provide an advantage of blocking the problem that external foreign matters are introduced into the interior of the lighting case in advance. The high heat generated by the light emission of the module part serves as a major factor that prevents easy emission to the outside of the case.

Therefore, after a predetermined time after the light emission of the optical module unit, the temperature in the case is rapidly increased, and even if the light is turned off, the internal temperature does not fall below an appropriate temperature for a long time. This is because even though the heat sink absorbs and radiates the high heat generated in the optical module unit, the heat dissipation space is limited to the sealed space of the case, not in the air, and the high heat stays in the case.

As such, when the high heat generated by the optical module unit and the high heat generated by the heat sink are not directly radiated to the air and stay in the sealed space of the case for a long time, for example, a plurality of LEDs arranged in the optical module unit and driving the same The element of the control circuit for such a problem is not only easily damaged or malfunctioned by this high temperature, but also the illuminance is greatly reduced, and also the service life is shortened due to the deterioration characteristics and the maintenance cost is high.

Of course, it is also conceivable to install the heat sink outside of the case so as to be in contact with the outside air, but in this case, since rainwater or foreign matter is introduced into the case along the heat sink and causes an electrical short. However, even though the above-mentioned problems are recognized, specific countermeasures have not been prepared.

Accordingly, the present invention has been made under the above-described background, and an object of the present invention is to enable high heat generated during the light emission of an LED to be immediately released into the air without staying in the case, thereby reducing the unexpected burnout and lifespan of the LED. To provide a lamp case for the LED light source to block in advance, the lamp case, the outside air flows into the case in one part of the case, for example, a part of the top cover can be released immediately after heat exchange with the heat sink. By means of having an air distribution means.

Another object of the present invention is to provide a light case for the LED light source for blocking the inflow of external rainwater and foreign matter to prevent the safety accident and the malfunction of the LED in advance, the lamp case, A part, for example, a part of the top cover is achieved by providing a cover plate having a porous structure that releases high heat in the case to the outside and blocks external rainwater and foreign matter from entering.

It is still another object of the present invention to provide an LED light source case for protecting an LED by maintaining airtightness from water vapor or moisture coming from the ground, which is one part of the case, for example, the optical module unit It is achieved by forming a key groove so as to surround the optical module portion at one portion of the body to be coupled, and inserting an airtight packing in the key groove, and then pressing and compressing with a transparent cover to maintain the airtightness.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

According to the LED lighting source case according to the present invention for achieving the above objects, a plurality of heat sinks are arranged on the upper surface and the lower surface corresponding to the optical module is coupled to the body fixed to the support and the body, and In the LED lighting lamp made of a transparent cover coupled to the lower surface of the body to transmit the light of the optical module portion to the ground,

A top cover having at least one through opening formed thereon and coupled to an upper portion of the body to cover the heat sink from the outside;

Removably coupled to the through opening of the top cover includes a cover plate for discharging the high heat of the internal space provided by the body and the top cover to the outside and block the inflow of foreign matter,

The top cover is formed at least at both sides of the mutually opposite sidewalls are arranged at equal intervals to include an air flow unit for introducing and discharge the outside air to achieve heat exchange with the heat sink in the interior space provided by the body and the top cover It features.

Optionally, the air flow unit may include a plurality of support pieces vertically arranged at equal intervals on both sidewalls of the top cover; And a plurality of vent holes formed to penetrate between the support pieces to introduce external air into the internal space and discharge the external air so that the introduced air does not stay in the internal space.

Optionally, the body is formed integrally with the heat sink or formed separately from the heat sink, characterized in that coupled to the heat sink.

Optionally, the lower surface of the body is characterized in that the airtight member for waterproof and dustproof to the optical module unit is formed.

Preferably, the airtight member includes: a key groove formed in a lower surface of the body to surround the optical module unit; A hollow portion for shock absorption is formed at an upper portion, and both sides of the lower portion are formed of a combination of packings fitted into the key grooves to prevent wings from being separated from the key grooves vertically outward.

As described above, the airflow means is provided on both sidewalls of the top cover, and a cover plate having a porous structure is provided on the top cover, and the body has an airtight member for maintaining the airtightness of the optical module. Unexpected malfunction, shortened life and burnout of LEDs due to high heat generated during inflow of foreign materials and foreign matters can be prevented, as well as safety accidents due to electrical short circuits.

According to the LED lighting source case of the present invention, the air distribution means for forming a portion of the top cover, for example, both sidewalls for the high heat generated by the drive of the optical module unit by introducing the outside air to discharge, The cover plate which emits high heat generated by the driving of the optical module unit to the outside and blocks external rainwater, moisture and foreign matters from being introduced, and the body is provided with an airtight member for maintaining airtightness in the case.

In the case of the illuminating lamp case for the light source of the present invention, through the interlocking action of the air distribution means and the cover plate, the high heat generated by the drive of the optical module unit is easily discharged to the outside without staying in the case, and also external rain water Since the inflow of moisture or foreign matter, including the various components contained in the case, such as a circuit block, a plurality of LED elements, etc. can be prevented in advance unexpected malfunction, shorten the life, burnout, and by electrical short Safety accidents can be prevented beforehand.

1A is an exploded perspective view of a lamp case for an LED light source according to an embodiment of the present invention;
1B is an exploded perspective view of an LED light source case according to another embodiment of the present invention;
FIG. 2 is an exploded perspective view showing the body and the transparent cover of FIG. 1A and FIG. 1B upside down; FIG.
3 is a cross-sectional view showing a combination of the lamp case for the LED light source of Figure 1a,
Figure 4 is a perspective view of the combination of the lamp case for the LED light source of Figure 1a,
Figure 5 is a perspective view of the combination of the lamp case for the LED light source of Figure 1b,
Figure 6 is a perspective view of another embodiment of the optical module unit coupled to the heat sink and the body in the LED light source case for light according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the LED lighting source case according to the present invention through the following.

In the LED lighting source case according to the present embodiment, as shown in Figures 1 to 5, the body 10, the top cover 20 and the transparent plate 52, for example, glass or polyester material of the metal material It consists of a combination of the transparent cover 50 made of a support plate 54 of the.

At this time, the body 10 is made of a material such as a metal having excellent thermal conductivity, for example, aluminum (Al), and forms an elliptical shape.

On the lower surface of the elliptical body 10, a printed circuit board (PCB) 72 in which a control circuit for controlling the blinking of the LED and a power supply circuit for supplying power is implemented is coupled, for example, bolted and fixed. The front surface of the printed circuit board 72 is composed of a plurality of LEDs, the optical module unit 70 for emitting light by receiving external power is disposed. The LED of the optical module unit 70 generates heat while emitting light based on power supplied through the printed circuit board 72.

And a plurality of heat sinks 30 are formed integrally arranged on the upper surface of the body 10. Here, the plurality of heat sinks 30 are formed to be the same or somewhat larger than the area of the printed circuit board 72, and absorbs the heat generated by the optical module unit 70 and applied to the printed circuit board 72 in detail later. The heat is dissipated to the space 12 provided by the combination of the top cover 20 and the body 10 to be described. That is, the plurality of heat sinks 30 described above are integrally formed with the body 10 having excellent thermal conductivity, and the heat is applied to the printed circuit board 72 because the thermal conductivity is higher than that of the printed circuit board 72. It absorbs from (10) and dissipates heat.

In addition, the top cover 20 described above is fixed to the upper portion of the body 10, for example, in an elliptical shape, for example, is fixed by being coupled with a bolt. The top cover 20 is discharged directly to the outside without staying after the outside air flows into the space 12 provided by the body 10 and the top cover 20 at least on both side walls facing each other. Air flow units 22 are formed at equal intervals so as to be formed, and at least one or more semi-elliptical through-openings, for example, two through-openings 22c and 22d are formed on the upper portion thereof. The cover plates 40 and 42 to be described are joined.

As shown in FIG. 1A, the air flow units 22 of the top cover 20 are arranged vertically at equal intervals on both sidewalls of the top cover 20, and the other ends thereof are integrally connected to each other. It is formed to penetrate between the support piece 22a and the support pieces 22a so that the outside air flows into the space 12 and is discharged back to the outside so that the introduced air does not stay in the space 12. It is composed of a plurality of vent holes 22b, or as another embodiment, as shown in Figure 1b, the other end of the support piece 22a is configured to be disconnected from each other.

The support piece 22a of the air flow unit 22 shown in FIGS. 1A and 1B is formed to be longer than the length of the heat sink 30 so that a plurality of heat sinks 30 may be accommodated when the body 10 is coupled to the body 10. It also serves to form a space 12, and also serves to absorb heat transferred from the printed circuit board 72 to the body 10 by surface contact with the body 10 to radiate heat by contact with external air. do. Therefore, the top cover 20, on which the support piece 22a is formed, may also be implemented with a material such as a metal having excellent thermal conductivity, for example, aluminum (Al).

In addition, as shown in FIGS. 1A and 1B, the plurality of vent holes 22b provided between the support pieces 22a are formed into the inner space 12 provided by the top cover 20 and the body 10. Air is introduced to perform heat exchange in contact with the plurality of heat sinks 30, or serves to allow the heat-exchanged hot air of the internal space 12 to be released into the atmosphere.

Therefore, vent holes 22b of the air flow units 22 are provided on both sidewalls of the top cover 20 to face each other, and are generated in the optical module unit 70 and transferred to the heat sink 30 through the body 10. By heat-exchanging the high heat with the outside cold air and then immediately discharged to the atmosphere, the air in the space 12 in which the plurality of heat sinks 30 are located is cooled, whereby the heat generated in the optical module unit 70 The heat dissipation efficiency is increased.

On the other hand, in the through openings 22c and 22d of the top cover 20 described above, high heat of the internal space 12 generated by the driving of the optical module unit 70 is discharged to the outside, and rainwater or dust from the outside is discharged. The cover plates 40 and 42 for blocking foreign substances such as back from being introduced into the inner space 12 in which the heat sink 30 is located are coupled.

The cover plates 40 and 42 form a semi-ellipse like the through openings 22c and 22d. In this case, the cover plates 40 and 42 are inserted through the through openings 22c and 22d of the top cover 20 and fixed to the bottom surface of the top cover 20, for example, coupled by bolts. .

As described above, the cover plate 40, 42 is coupled to the top cover 20, the top cover 20 is fixed to the upper portion of the body 10 after driving the optical module unit 70 heat sink High heat is generated in the space 12 in which the 30 is located. This high heat is a heat exchange with the cold air of the outside introduced through the vent hole 22b of the air flow unit 22 and the heat exchanged air is again discharged through the vent holes 22b of the air flow unit 22 and In addition, since the emission is performed through the cover plates 40 and 42, the heat dissipation efficiency of the heat generated by the optical module unit 70 is greatly increased. Here, the cover plate 40, 42 of the present invention forms a porous structure.

At this time, the pores of the cover plates 40, 42 maintain a size smaller than the particles of dust, for example, while the cover plates 40, 42 release the high heat generated in the internal space 12 to the outside. It should be able to extinguish the role of appropriately blocking external foreign substances such as pests and inflow of rainwater.

On the other hand, the airtight member 60 for waterproofing and dustproofing the optical module unit 70 is formed on one surface, for example, the lower surface of the body 10 described above.

At this time, the airtight member 60 is a key groove 64 formed in the lower surface of the body 10 so as to surround the optical module unit 70, as shown in Figure 2 and 3, and the hollow for absorbing shock on the upper The portion 62c is formed, and on both sides of the lower portion, wings 62a and 62b for preventing separation from the key groove 64 are opened in a vertical outward direction and are formed of a combination of the packing 62 fitted into the key groove 64. When the packing 62 is inserted into the key groove 64, the wings 62a and 62b of both sides which are opened outward are naturally retracted inward due to the surface contact with the key groove 64, thereby making the insertion. You lose. If the packing 62 is to be separated again, both sides of the blades 62a and 62b make strong friction while making surface contact with the key groove 64, thereby causing the wings 62a and 62b to both sides. Is forced outward and eventually, the packing 62 is not easily separated.

On the other hand, in the state in which the packing 62 as described above in the key groove 64 formed on the body 10, the body of the oval-shaped transparent cover 50 for transmitting the light emitted from the optical module unit 70 to the ground Fixing to the lower part of (10), for example, by fixing with a bolt.

In this case, the transparent cover 50 is formed of, for example, a combination of a transparent plate 52 made of glass or polyester, and a metal support plate 54 supporting the transparent plate 52. When the transparent cover 50 is coupled to the packing 62 when it is combined with the body 10 of FIGS. 1A and 1B, the transparent cover 50 is not only prevented from entering moisture into the optical module unit 70 but also from the outside. Since the applied vibration is sufficiently relaxed by the hollow portion 62c of the packing 62, the vibration to the optical module unit 70 is not transmitted, and parts such as the LED and the control circuit are not damaged. In addition, glass or polyester transparent plate 52 is also protected from external vibration.

The assembly of the LED light source for the light source of the present invention thus assembled is fixed to the support 80 which is horizontally connected to the ground on the post of a street lamp or a supplementary lamp by using a coupling hole 10a formed in the body 10. Is achieved by giving.

6 is a perspective view of another embodiment of the optical module unit coupled to the body and the heat sink in the LED light source case for the light source according to the present invention, as described above, the body 10 is integrally formed with a plurality of heat sinks 30 The heat generated from the module unit 70 may be absorbed and radiated. Alternatively, as shown in FIG. 6, a part of the heat sink 30 may be separately manufactured and coupled to the body 10. In this case, each of the separated heat sinks 30 is used in combination with the printed circuit board 72 provided with the optical module unit 70. In this case, the high heat generated in the optical module unit 70 is absorbed by the plurality of separated heat sinks 30 through the printed circuit board 72, and the heat sink 30 absorbing heat is absorbed in the internal space 12. After the heat exchange with the outside air is discharged to the outside through the air flow section 22 and the cover plate 40, 42, the heat dissipation efficiency of the heat generated in the optical module unit 70 is increased to the various parts in the case For example, the control circuit, the plurality of LEDs, and the like are protected from deterioration characteristics, thereby preventing malfunction and extending the life.

On the other hand, as a comparative example, the conventional technology, that is, the high heat generated from the optical module unit is not directly radiated into the air, but stays in the sealed space of the case for a long time, and the plurality of LEDs arranged in the optical module unit for driving the same Unlike damaging the elements of the control circuit, the present invention is provided with air distribution means on both sidewalls of the top cover, and a cover plate having a porous structure on the upper side, and an airtight member for maintaining the airtightness of the optical module unit on the body. It can be seen that the production by providing.

In this result, according to the present invention, the high heat generated during the light emission of the LED is heat-exchanged with the external cold air introduced through the air distribution means immediately after being discharged to the outside through the air distribution means and cover plate and also rain water, dust, etc. The same external foreign matter is blocked from the cover plate and does not flow into the case, thereby preventing the unexpected malfunction, shortening and burning of the LED, as well as safety accidents due to electrical short circuits.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

10: body 20: top cover
22: air distribution part 22a: support piece
22b: vent hole 30: heat sink
40, 42: cover plate 50: transparent cover
52: transparent plate 54: support plate
60: airtight member 62: packing
62a, 62b: wing 70: optical module

Claims (7)

Several heat sinks are arranged on the upper surface, and the lower surface corresponding to the optical module unit is coupled to the body fixedly installed on the support, and the transparent cover that is coupled to the lower surface of the body to transmit the light of the optical module unit to the ground. In the LED lighting that was made,
(1) a top cover having at least one through opening formed thereon and coupled to an upper portion of the body to cover the heat sink from the outside; And
(2) a cover plate detachably coupled to the through opening of the top cover to discharge the high heat of the internal space provided by the body and the top cover to the outside and block foreign substances from entering the outside;
The top cover,
(3) an air distribution unit which is formed on at least two opposite sidewalls at equal intervals and which introduces and discharges external air so as to exchange heat with the heat sink in the inner space provided by the body and the top cover; Lamp case for LED light source.
The method according to claim 1,
The cover plate is a lamp case for an LED light source, characterized in that a porous structure.
The method according to claim 1,
The air distribution unit,
A plurality of support pieces arranged vertically at equal intervals on both sidewalls of the top cover; And
The light source for the LED light source, characterized in that made of a combination of a plurality of ventilation holes formed between the support pieces to inject the outside air into the inner space and the outside air is discharged to the outside so as not to stay in the inner space case.
The method according to claim 1,
The air distribution unit,
LEDs, which are formed through both sidewalls of the top cover at equal intervals and are provided with a plurality of vent holes for introducing external air into the inner space and discharging the introduced air to the outside so as not to stay in the inner space. Lighting case for light source.
The method according to claim 1,
The body is formed integrally with the heat sink or formed separately from the heat sink, the lamp case for an LED light source, characterized in that coupled to the heat sink.
The method according to claim 1 or 5,
LED light source case for the lower surface of the body characterized in that the airtight member for waterproof and dustproof to the optical module unit is formed.
The method of claim 6,
The hermetic member,
A key groove formed in a lower surface of the body to surround the optical module unit;
LED light source case for a light source, characterized in that the hollow portion for shock absorption is formed on the upper side and the lower side of the key groove for preventing the departure from the key groove is formed in a combination of the packing is fitted in the key groove.

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