KR101610618B1

KR101610618B1 - Floodlight

Info

Publication number: KR101610618B1
Application number: KR1020150109388A
Authority: KR
Inventors: 김백현; 조민진; 김병오; 김상옥
Original assignee: (주)유양디앤유
Priority date: 2015-08-03
Filing date: 2015-08-03
Publication date: 2016-04-11
Also published as: WO2017023015A1

Abstract

A light projecting or the like which is installed indoors or outdoors to irradiate light of desired brightness is started.
A housing including a hollow front member; A lamp device including a plurality of lamps for irradiating light at a desired position; A PCB installed at a rear portion of the lamp unit and electrically connected to operate the respective lamps; And a heat dissipation device for keeping the heat generated in the lamp device from rising above a predetermined temperature; Wherein the heat dissipation device includes: a heat dissipation plate for fixing an internal configuration of the heat dissipation device; a plurality of pins extending vertically from one side of the heat dissipation plate; and extending from right and left sides of the heat dissipation plate at the center of the other side of the heat dissipation plate, And a plurality of heat pipes extending vertically through a plurality of fins at one side of the heat dissipation plate through left and right side surfaces of the heat dissipation plate.

Description

Floodlight {Floodlight}

This embodiment relates to light projection and the like, and more particularly relates to a light projection or the like including a heat dissipating device for efficiently lowering the heat generated by the lamp and keeping the temperature constant.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Generally, floodlights are installed indoors or outdoors so that light of desired brightness can be inspected in architectural structures, large monuments, various stadiums, various factory facilities, and industrial facilities.

Therefore, in addition to ports and airports, they are used in many parts for sports such as main stadiums, sports arenas (baseball field, basketball court, soccer field, etc.), and industrial floodlights also use such floodlights.

These floodlights are mainly made of high-intensity discharge lamps. The surface where the light is projected is made of glass or acrylic, which is excellent in transmittance. It is installed at an optimal position for enhancing the lighting effect, They are arranged at proper intervals and projected in a desired direction.

In the case of a floodlight used for industrial purposes, the desired area should be intensively illuminated. However, since the distribution of the intensity of illumination is not uniform, the average brightness is lowered and the light is not collected at the center of the illuminated area. Is not obtained.

Since the lighting range of the floodlight is wide, a large amount of heat is generated in proportion to the weight and volume of the lamp, as well as the capacity of the lamp, which is the light source, and the heat is also proportional to each other. It does not meet these requirements.

In general, the light efficiency increases as the heat sink keeps the temperature of the lamp unit low. In the case of a flood light, since the intensity of light becomes stronger as the light efficiency becomes better, the life of the lamp is shortened. Therefore, it is important that the heat sink keeps the temperature of the lamp device at a certain level.

That is, since the temperature in the heat sink influences the maintenance of the luminous flux, if the efficiency of the conventional illumination is 100% at the beginning, the luminous efficiency drops to 80%, 70%, and 60% over time, Replace the luminaire when you have it. However, LED floodlight uses a semiconductor device to solve the problem of efficiency. However, since a lot of heat is generated when assembled with a luminaire, the efficiency of light is lowered or the size of the floodlight increases to remove heat.

In addition, the lamp characteristics vary depending on the place and season in which the floodlight is used, and the part that can solve this problem is an appropriate temperature saturation point in the heat sink. It is very important to keep these saturation points in the heat sink, which can ensure the luminous flux, lumen maintenance and the lifetime of the Switching Mode Power Supply (SMPS).

However, since a saturation point is about 80 ° C to 90 ° C in the case of a generally used 600w transmission light, the size of the heat dissipating device must be larger in order to meet the saturation point.

In this embodiment, in order to remove much heat generated in the lamp, the temperature of the heat-dissipating device is maintained at 80 ° C to 90 ° C, and at the same time, The heat pipe is vertically passed through the plurality of fins so that the temperature of the lamp unit can be rapidly lowered and at the same time the temperature can be kept constant by the influence of the fluid in the heat pipe, To be able to maintain a certain level regardless of time and place.

In addition, in the case of a lamp unit, the lamp unit is divided into a plurality of lamp areas, and the angle of the reflection plate of each lamp area is changed to uniformly improve the illuminance in a wider area to transmit light to a desired illumination area.

According to an aspect of the present embodiment, there is provided an electronic device including: a housing including a hollow front member; A lamp device including a plurality of lamps for irradiating light at a desired position; A PCB installed at a rear portion of the lamp unit and electrically connected to operate the respective lamps; And a heat dissipation device for keeping the heat generated in the lamp device from rising above a predetermined temperature; Wherein the heat dissipation device includes: a heat dissipation plate for fixing an internal configuration of the heat dissipation device; a plurality of pins extending vertically from one side of the heat dissipation plate; and extending from right and left sides of the heat dissipation plate at the center of the other side of the heat dissipation plate, And a plurality of heat pipes extending vertically through a plurality of fins at one side of the heat dissipation plate through left and right side surfaces of the heat dissipation plate.

According to the present embodiment, the heat pipe of the heat dissipating device is provided so as to correspond to the position of the lamp where heat is generated, and the heat pipe is connected between the plurality of fins at the rear portion of the heat dissipating device to quickly recover the heat of the lamp, And the temperature of the light source is constantly maintained by the liquid in the heat pipe. Therefore, the temperature of the lamp is kept constant regardless of the place where the floodlight is used and the season, Thereby saving the life of the lamp.

Further, there is an effect that the lamp device is divided into a plurality of lamp areas, and the angle of the reflector of the lamp is varied according to each lamp area, thereby uniformly illuminating bright light in a wide area.

FIG. 1 is a perspective view of a light projection lamp as a whole combined with the components according to the present embodiment.
Fig. 2 shows an exploded view of a light projection according to this embodiment.
3 is a perspective view showing a heat dissipating device according to the present embodiment.
FIG. 4 is a view showing a correspondence relation between the heat pipe of the heat dissipating device according to the present embodiment and the position of the lamp of the lamp device according to the present embodiment.
5 is a front view showing the lamp unit according to the present embodiment.
FIG. 6 is a cross-sectional view of the lamp unit of FIG. 5 taken along the line P-P 'and a partially enlarged view thereof.
Figure 7 (a) is a view of a lamp including a reflector having a 60 [deg.] Angle according to one embodiment of the present invention.
7 (b) is a view showing a lamp including a reflector having a 30 [deg.] Angle according to another embodiment of the present invention.
7 (c) is a view showing a lamp including a reflector having a 15-degree angle according to another embodiment of the present invention.
8 (a) is a view showing a lamp device in which all the lamp areas have the same angle of 15 degrees and a case where the lamp device is irradiated.
Fig. 8 (b) is a view showing a lamp device in which all the lamp areas have the same angle of 60 [deg.] And a case where the lamp device is irradiated.
Fig. 8 (c) is a view showing a lamp device in which each lamp region has a reflector at a different angle, and a case where the lamp is irradiated.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In describing the constituent elements of this embodiment, first, second, i), ii), a), b) and the like can be used. Such a code is intended to distinguish the constituent element from other constituent elements, and the nature of the constituent element, the order or the order of the constituent element is not limited by the code. It is also to be understood that when an element is referred to as being "comprising" or "comprising", it should be understood that it does not exclude other elements unless explicitly stated to the contrary, do.

Hereinafter, the light emission according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a light projection lamp as a whole combined with the components according to the present embodiment. Fig. 2 shows an exploded view of a light projection according to this embodiment.

1 and 2, elements such as a light emitting element according to this embodiment will be described.

The floodlight 100 according to the present embodiment includes a housing 110, a lamp unit 210, a PCB 220, a frame 220, (240) and a heat sink (250).

The housing 110 includes a front member 120 and a rear cover 130. The front member 120 and the rear cover 130 serve to protect the interior of the light source 100. The front member 120 A PCB 220, a frame 240, and a heat sink 250. The heat sink 250 is mounted on the PCB 220,

The front member 120 according to the present embodiment is an annular member made of a plastic material such as ABS resin and having a hollow center. In order to stably fix the lamp unit 210, the central portion 140 may be included in the upper and lower portions of the hollow portion of the front member 120.

The rear cover 130 is also made of a material similar to that of the front member 120 and is used to protect the heat dissipating device 250 and the like which are internal components to be described below from the external environment. Unlike the front member 120, A plurality of holes are formed in order to facilitate the functioning of the heat dissipating device 250 through convection with the outside air so that the outside air can easily enter the inside of the light emitting lamp 100.

The rear cover 130 is formed such that a central portion of the rear cover 130 is convex outwardly of the light transmitting lamp 100 to receive the heat dissipating device 250.

The lamp unit 210 is a device for irradiating light at a desired position including a plurality of lamps 215. The lamp unit 210 is located at a hollow portion of the front member 120 which is one of the inner structures of the light source 100, I will explain in detail.

A PCB (Printed Circuit Board) 220 is installed at the rear of the lamp unit 210 and is electrically connected to each lamp 215 of the lamp unit 210 and is fixed to the frame 240 installed at the rear.

The PCB 220 is made of a metal material that facilitates heat conduction. Also, the PCB 220 generates an electrical signal so that the lamp is lit. The PCB 220 may be fixed to the frame 240 with screws or the like. A gap pad 230 made of a material having a high thermal conductivity is interposed between the PCB 220 and the surface of the frame 240 to improve heat absorption and waterproof performance.

The frame 240 fixes the PCB 220, the lamp unit 210, the heat dissipating unit 250 and the like, which are internal components of the light emitting lamp 100, with a rectangular plate positioned between the PCB 220 and the heat dissipating unit 250.

The frame 24 has an elongated frame 243 extending vertically in the direction of the rear cover 130 of the frame 240. The elongate frame 243 is attached to the rear cover 130 of the housing 110 130) to stably fix the entire structure of the light-emitting lamp 100.

The heat dissipating device 250 is located at the other end of the internal structure of the light emitting device 100 and is fixed to the back surface of the frame 240 opposite to the surface connected to the PCB 220, So that the heat generated in the lamp unit 210 is prevented from rising to a predetermined temperature or higher.

The light transmitter 100 may include a connecting rod 260 for attaching the light transmitter 100 to the column or the wall in an oblique manner other than the above components and the connecting rod 260 may be coupled by bolts and nuts can do.

The power supply may further include an adapter or a switching mode power supply (not shown) for turning on the lamp 215 of the floodlight 100 of the present embodiment. SMPS), it is possible to convert an applied AC high voltage (110 to 220 V) into a DC power of a required low voltage (for example, about 5 V).

Such a power supply device may be installed apart from the floodlight 100 of this embodiment at a predetermined distance. In such a case, the power supply can supply power to the lamp 215 via the PCB 220 via a wire (not shown).

Wire holes 246 and 255 may be formed in the frame 240 and the heat sink 250 to connect the PCB 220 and the power supply through wires.

3 is a perspective view showing a heat dissipating device according to the present embodiment. FIG. 4 is a view showing a correspondence relation between the heat pipe of the heat dissipating device according to the present embodiment and the position of the lamp of the lamp device according to the present embodiment.

Hereinafter, the configuration and function of the heat dissipating device will be described based on FIGS. 3 and 4. FIG.

The heat dissipating device 250 functions to cool the lamp device 210 and maintain the temperature of the lamp device 210 and the PCB 220 so that the heat generated in the lamp device 210 of the light emitting lamp 100 is no longer raised, A heat pipe 310, a heat pipe 320, and a fin 330. [

The heat dissipating plate 310 is a device for fixing the pin 330 and the heat pipe 320 constituting the heat dissipating device 250 and fixing the heat dissipating device 250 to the frame 240. In this embodiment, The heat radiating plate 310 is a square plate having two heat sinks 310 corresponding to the lamp unit 210 and a heat sink 310 is fixed to a rear portion of the frame 240.

It is preferable that the heat dissipating plate 310 is made of two or more heat dissipating plates 310 rather than one large heat dissipating plate 310 in view of the size thereof and the phenomenon that heat is concentrated in the center region. It is preferable to use aluminum which is light in weight and has high heat transfer.

The heat dissipating plate 310 is formed in a semicircular shape in the inner direction of the heat dissipating plate 310 in consideration of the external shape of the heat pipe 320 on the surface of the heat dissipating plate 310 facing the frame 240, Protrusions 350 may be formed at the upper and lower ends of the heat sink 310 so as to prevent the heat pipes 320 from deviating from their original positions due to an external impact or the like. do.

The fin 330 is formed to be perpendicular to the heat sink 310 on the opposite surface of the heat sink 310 opposite to the frame 240 and has a plurality of thin and wide plate- The pins 330 are arranged in a line. The pin 330 is also preferably made of an aluminum material that is light in weight and has a high heat transfer rate.

The fins 330 are in the form of a thin, wide plate for widening the surface area in contact with the air, and the plate shape may be a rectangular plate shape or a shape in which one corner of the square is obliquely cut as shown in the figure.

In addition, the pin 330 has a plurality of pipe holes 360 through which the heat pipe 320 can pass, and connects the heat pipe 320 therebetween. This effectively transfers the heat generated from the lamp 215 to the pin 330 to efficiently lower the heat of the lamp 215 and also fixes the heat pipe 320.

The heat pipe 320 extends from the central portion of the surface of the heat dissipating plate 310 fixed to the frame 240 to the left and right sides of the heat dissipating plate 310, And extends between the plurality of fins on one side of the heat sink through the side surface.

Specifically, the heat pipes extending from the central portion of the heat sink 310 to the left and right sides of the heat sink are vertically bent in the direction from the left and right sides of the heat sink to the rear lid, And may extend to the center portion of the heat sink through the hole 360 to be formed in a 'C' shape as a whole.

Or the heat pipe 320 may be curved in a semicircular shape at the left and right sides of the heat sink 310 to be inserted into the pipe hole 360 of the pin 330 to be formed in a U shape.

4, the plurality of heat pipes 320 are formed by aligning the heat pipes 320 such that the heat pipes 320 are formed at portions corresponding to the portions where the lamps 215 of the lamp unit 210 are installed, The heat pipe 320 is installed directly on the PCB 220 through the frame 240 and the heat is transferred to the heat pipe 320 through the fast conduction.

The liquid in the heat pipe 320 that has received heat from the lamp unit 210 flows to the heat pipe 320 on the opposite side of the heat dissipating plate 310 and flows through the heat pipe 320 in contact with the outside air and the outside air, And the re-cooled liquid flows to a portion directly contacting the lamp unit 210, and the heat of the lamp unit 210 is repeatedly transmitted, thereby lowering the heat generated in the lamp unit 210.

In this embodiment, the heat pipe 320 is installed at a portion corresponding to each lamp 215 and extends to a portion where the plurality of pins 330 of the heat sink 310 are located, As the liquid flows, the heat is lowered more efficiently.

With this effect, the floodlight according to the present embodiment can be reduced in size and weight by 2/3 or more compared with the conventional floodlight 100, and the temperature of the floodlight 100 can be reduced to 80 to < RTI ID = 90 < 0 > C, thereby maintaining the brightness of the light constant and stably maintaining the life of the lamp.

As shown in the figure, the heat pipe 320 is installed in the portion S of the lamp unit 210 other than the portion corresponding to the lamp 215, and the heat pipe 320 is installed in the lamp unit 210 The heat can be efficiently lowered.

In this case, the heat dissipating plate 310 is formed up and down in addition to the portion corresponding to the size of the lamp unit 210, and the frame 240 is formed to have a size corresponding to the size of the heat dissipating plate 310, The frame 240 may transmit heat to a portion other than the portion where the frame 240 contacts the lamp unit 210 so that the lamp unit 210 is also connected to the lamp unit 210 through the heat pipe 320, 210) is lowered.

2, the heat sink 310 includes a wire hole 255 through which a wire by a power supply device (not shown) can pass, and a wire hole 246 is also formed in the frame 240 at the same position. So that they can be connected from the power supply unit to the PCB 220 through wires.

5 is a front view showing the lamp device according to the present embodiment. FIG. 6 is a cross-sectional view of the lamp unit of FIG. 5 taken along the line P-P 'and a partially enlarged view thereof. 7 is a view illustrating a lamp including a reflector having a different angle according to an embodiment of the present invention. Fig. 8 is a view showing a lamp device in which all lamp areas have a reflector with the same angle, and a case in which the lamp is irradiated and a lamp device in which each lamp area has a reflector at an angle different from that of the lamp;

Hereinafter, the configuration and function of the lamp unit will be described with reference to FIGS. 5 to 8, and a method of utilizing the lamp unit for examining an appropriate ruler will be described.

5 according to an embodiment of the present invention includes two lamp plates 500, each lamp plate 500 being divided into two lamp areas. In each area, a plurality of lamps 215 are mounted. In this embodiment, 30 lamps 215 are included in one lamp area.

Therefore, in the present embodiment, there are 30 lamps 215 in one lamp region, and a total of four such lamp regions. However, this is only one example, and the number of regions and ramps 215 may be varied within a range that is readily apparent to those of ordinary skill in the art.

6, each lamp 215 includes a light source unit 610, a lamp cover 620, and a reflector plate 630. As shown in FIG. The light source unit 610 irradiates light, and a metal halide lamp, a lamp such as sodium, halogen, etc., and an LED lamp used for the light source 100 can be used.

The lamp cover 620 is for protecting the light source unit 610 from the external environment and is disposed on the front surface of the lamp 215 and is made of a transparent glass or acrylic plate member so as not to interfere with the function of the lamp 215 as a light source .

The reflection plate 630 is a part for adjusting the direction of the light source by the lamp 215 and the intensity of the light source. The reflection plate 630 according to the present embodiment is formed by 15 °, 30 °, 60 °, Can be adjusted. However, since this is only one example, the angle of the reflection plate can be modified within a range that can be easily adjusted by a typical technician.

When the angle of the reflector 630 is 15 °, the light source is irradiated in a narrow range, but the intensity of the light source is large and the light source is bright and can be irradiated to a long distance. When the angle of the reflector is 30 ° and 60 °, But the intensity of the light source is small and it is difficult to investigate to a long distance.

5, the lamp unit 210 according to the present embodiment is divided into four lamp regions, and the angle of the reflection plate 630 of the four regions A, B, C, and D is different The light can be controlled efficiently.

In other words, it is more effective and more variously used than the case of using the angle of the reflection plate 630 for each of the lamp regions A, B, C, D rather than using the reflection plate 630 of the same angle in the four lamp regions. . &Lt; / RTI >

For example, when the angles of the reflectors in the areas A to D are set to 15 degrees, as shown in FIG. 8A, it is difficult to irradiate light in a wide range. In the case of FIG. 8B, When the angle is the same or 60 °, light can be irradiated over a wide range, but relatively light intensity can be relatively dark outside the central region.

On the other hand, when the angle of the reflection plate 630 in the A and D regions is 15 degrees and the angle of the reflection plate 630 in the B and C regions is 60 degrees as shown in FIG. 8 (c) At the same time, the whole can be made evenly brighter.

Thus, the desired brightness can be adjusted to a desired position by adjusting the angle of the reflection plate 630 of each of the lamp regions.

The present invention is not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the claims, and all technical ideas considered to be equivalent or equivalent thereto should be construed as being included in the scope of the present invention.

100: Floodlight 110: Housing
210: Lamp unit 220: PCB
240: Frame 250: Heat dissipation device
310: heat sink 320: heat pipe
330: pin

Claims

A housing including a hollow front member;
A lamp device including a plurality of lamps for irradiating light at a desired position;
A PCB installed at a rear portion of the lamp unit and electrically connected to operate the respective lamps;
A gap pad for rapidly transferring heat generated from the lamp unit and the PCB to a heat dissipation device; And
And a heat dissipating device for keeping the heat generated in the lamp device from rising above a predetermined temperature,
The heat dissipating device includes:
A heat sink for fixing the internal structure of the heat dissipating device,
A plurality of pins extending vertically from one side of the heat sink,
And a plurality of heat pipes extending from the center of the other side of the heat radiating plate to left and right side surfaces of the heat radiating plate and passing through the left and right side surfaces of the heat radiating plate perpendicularly to a plurality of fins at one side of the heat radiating plate,
The heat pipe formed on the other side of the heat sink is installed in a position corresponding to a portion of the lamp device where the lamp is installed, and the heat pipe is installed to abut on each lamp portion where heat is generated through the PCB ,
Wherein the lamp unit comprises a plurality of lamp plates, each lamp plate comprising at least two lamp areas, the lamp area comprising a plurality of lamps,
Said lamp comprising:
A light source for irradiating the light, and a reflector for adjusting the direction of the light source and the intensity of the light source,
The reflector may adjust the angle of the reflector to adjust the direction of the light source and the intensity of the light source,
The heat dissipation plate forms a clearance portion S up and down in addition to a portion corresponding to the size of the lamp unit and a frame positioned between the PCB and the heat dissipation unit also has a size corresponding to the size of the heat dissipation plate,
A light pipe or the like provided with a heat pipe in the clearance portion S to transmit heat to a portion other than a portion where the frame abuts the lamp device.

The method according to claim 1,
Wherein the heat sink includes a groove portion having a semicircular shape in a direction toward the inside of the heat sink.

3. The method of claim 2,
And the housing further includes a rear cover for protecting the heat dissipation device.

The method of claim 3,
The rear cover may include a plurality of holes to allow the heat dissipating device to easily contact the outside air.

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3. The method of claim 2,
The frame further comprises an extension frame for fixing with the housing.

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3. The method of claim 2,
The heat sink is made of two or more floodlights.

The method of claim 3,
Wherein the fin includes a pipe hole for receiving the heat pipe,
The heat pipe extends from a central portion of the other side of the heat radiating plate to left and right sides of the heat radiating plate and is vertically bent in the direction of the rear lid from the left and right sides of the heat radiating plate, A light pipe or the like, extending to the central portion of the heat dissipation plate through the pipe hole between the heat pipe and the heat pipe.

The method of claim 3,
Wherein the fin includes a pipe hole for receiving the heat pipe,
The heat pipe extends from a central portion of the heat radiating plate to left and right sides of the heat radiating plate and curves in a semicircular shape at the left and right sides of the heat radiating plate to extend to the central portion of the heat radiating plate through the pipe holes between the pins, .

3. The method of claim 2,
A power supply device electrically connected to the PCB and installed outside; And
Further comprising a wire electrically connecting the PCB and the power supply,
And a light-emitting lamp including wire holes in the heat dissipating device and the frame for passing the wire therethrough.

The method of claim 3,
A floodlight or the like which further includes a connecting block for erecting the light-emitting lamp obliquely or installing it on a column or a wall.

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The method according to claim 1,
And a lamp cover for protecting the light source unit from an external environment.

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