KR102094420B1 - Floodlight with heat dissipation module using convection - Google Patents

Abstract

The present invention relates to a floodlight having a heat dissipation module utilizing natural convection and, more specifically, to a floodlight having a heat dissipation module utilizing natural convection, which can maximize a heat dissipation effect by improving the structure of a heat dissipation module so that heat generated during the operation of a lighting module disposed in a floodlight can be quickly dissipated to the outside using natural convection, can reduce the size and volume of the heat dissipation module and increase the heat dissipation effect so that the overall volume and weight of the floodlight can be reduced to increase productivity and utilization, and can extend the lifespan of the lighting module by the increased heat dissipation effect. The floodlight of the present invention comprises: a housing formed in the form of an enclosure with an open lower portion, and having a convection movement hole formed in the center to vertically penetrate therethrough; an illumination module disposed on the open lower portion of the housing; a heat dissipation module provided in the housing to discharge the heat generated during the operation of the lighting module to the outside; a cover coupled to the housing to protect a front surface of the lighting module, and having a diffusion pattern for diffusing the light emitted from the lighting module; a stabilizer supplying power to the lighting module; and a fixing bracket enabling the stabilizer to be located upward from an upper end of the housing.

Description

Floodlight with heat dissipation module using convection

The present invention relates to a floodlight equipped with a heat dissipation module utilizing natural convection, and more specifically, the heat dissipation module so that heat generated during the operation of the lighting module disposed in the floodlight can be quickly discharged to the outside using natural convection. By improving the structure, the heat dissipation effect is maximized, and the size and volume of the heat dissipation module can be reduced while increasing the heat dissipation effect, thereby reducing the volume and weight of the entire floodlight to increase productivity and utilization, and increasing the heat dissipation effect to improve the life of the lighting module. It relates to a floodlight equipped with a heat dissipation module utilizing a natural convection that can be extended.

In general, the floodlight is to irradiate the light of the lighting module to the outside by applying power to the lighting module disposed therein, has a variety of applications depending on the capacity of the placed lighting module.

These floodlights are installed in factories that manufacture and manufacture products, indoor gymnasiums with dome-shaped ceilings, theatres, and the ceiling of performance halls, or are installed in stadiums where sports such as soccer and baseball are played. It can be carried out and can be installed on fishing boats, fishing boats, large tankers, ships, etc., and is installed on a lighthouse and used to guide ships at night.

As the lighting module used in such a floodlight, a light-emitting diode (LED) having a low power and high luminance characteristics and having high directivity of irradiated light is mainly used, and such LEDs are being widely used due to the above characteristics.

However, in the case of a large floodlight, many LEDs are mounted on the PCB. In order to irradiate high-luminance light in a small area, the number of LEDs mounted on the PCB has to be increased or the gap between the mounted LEDs has to be narrowed.

At this time, the conventional large-sized floodlight is essentially equipped with a heat sink, that is, a heat dissipation module, for discharging heat generated during operation of the LED to the outside.

In the general heat dissipation module, a plurality of heat dissipation fins are arranged at an outer circumferential surface of the housing where the lighting module is disposed to conduct heat generated from the LEDs, and the conducted heat is discharged to the outside by heat dissipation fins in contact with the outside air.

However, the heat dissipation fins disposed on the outer circumferential surface of the housing could not expect a discharge effect other than simply discharging the conducted heat to the outside.

In addition, in order to increase the emission effect, metals such as copper and aluminum having high thermal conductivity must be used as heat dissipation fins, thereby increasing production costs for manufacturing floodlights, which in turn leads to an increase in purchasing costs purchased by consumers.

Republic of Korea Utility Model No. 20-0377622 (registered on February 23, 2005) Republic of Korea Registered Patent No. 10-1089797 (published on July 26, 2011) Republic of Korea Registered Patent No. 10-1426293 (registered on July 29, 2014)

The present invention is proposed to solve the above problems, and a heat dissipation module utilizing natural convection that can improve the heat dissipation effect by improving the structure of the heat dissipation module for dissipating heat generated during operation of the lighting module to the outside. The purpose is to provide a provided floodlight.

In addition, although the structure of the heat dissipation module is improved, the heat generated from the lighting module using natural convection can be quickly discharged to the outside by penetrating the cold air at the bottom through the convection portholes penetrated up and down in the center to increase the heat dissipation effect. The purpose is to provide a floodlight equipped with a heat dissipation module utilizing natural convection.

In addition, it is an object of the present invention to provide a floodlight equipped with a heat dissipation module utilizing natural convection, which can increase the heat dissipation effect even if the inner heat dissipation fin and the outer heat dissipation fin constituting the heat dissipation module are formed of a non-metallic material.

In addition, the lighting module constituting the present invention is composed of a plurality of LEDs mounted on a PCB, and the PCBs are formed independently of each other so that each of the housings is detachably coupled to replace only the LEDs mounted on the PCB in case of failure. The objective is to provide a floodlight equipped with a heat dissipation module utilizing natural convection, thereby reducing the cost of maintenance.

In order to achieve the above object, the present invention, the lower portion is made of an open enclosure shape, the housing is formed with a convection movement hole penetrating up and down in the center; An illumination module disposed under the opened lower portion of the housing; A heat dissipation module provided in the housing to discharge heat generated during the operation of the lighting module to the outside; It is coupled to the housing to protect the front of the lighting module, the cover is formed with a diffusion pattern for diffusing the light emitted from the lighting module; A ballast for supplying power to the lighting module; And a fixing bracket for arranging the ballast so as to be positioned upward from the top of the housing.

In addition, the heat dissipation module is disposed in the center of the convection hole and the inner support ring, the center of which is penetrated up and down, one end is coupled to the outer circumferential surface of the inner support ring, the other end is coupled to the inner circumferential surface of the convection mover, a plurality of The inner heat-radiating fins, which are disposed at mutually spaced intervals to form inner heat-dissipating holes between adjacent pairs, are disposed at positions spaced outwardly from the outer rim of the housing and have an outer support ring with a center penetrating up and down, and an upper surface of the housing. A plurality of radially arranged, one end is coupled to the inner circumferential surface of the outer support ring, and a plurality of are disposed at mutually spaced intervals to include an outer heat-dissipating fin having an outer heat-dissipating hole formed between adjacent pairs.

At this time, the inner heat sink fin and the outer heat sink fin are each characterized in that they are formed in a streamlined shape having a curvature in order to widen the contact area with the atmosphere, guide the moving direction of the natural convection to move, and increase the moving speed.

In addition, the lighting module is made of a PCB, and a plurality of LEDs mounted on the PCB, the PCB is characterized in that each of the plurality of independently made to each other is detachably coupled to the housing.

In addition, the fixing bracket is fixed to the upper surface of the housing and a pair of coupling pieces arranged symmetrically to each other, a pair of vertical pieces bent upward from the ends of the coupling pieces, and connecting the upper ends of the vertical pieces It is characterized in that a horizontal space and an arrangement space formed between the vertical and horizontal pieces to place a ballast are formed.

In addition, the horizontal piece is characterized in that the bent piece is bent upward so as to form a space for natural convection to move between the ballast placed in the arrangement space to release the heat generated in the ballast.

The present invention made as described above has the effect of maximizing the heat dissipation effect by being released to natural convection through cold air passing through the convection hole formed in the center of the housing, the heat generated from the lighting module disposed in the housing.

In addition, the present invention is formed by forming the inner and outer radiating fins in a streamlined manner, thereby increasing the heat dissipation efficiency by widening the area where the cold air at the bottom of the housing contacts the inner radiating fin and the outer radiating fin, and guiding the direction in which the outside air moves in a streamlined manner. There is an effect of increasing the heat dissipation effect by dissipating heat generated from the lighting module to the outside by increasing the moving speed of the outside air so that the outside air moving upwards rises in the form of a whirlwind.

In addition, even if the inner heat sink fin and the outer heat sink fin are formed of a non-metallic material, the heat dissipation effect can be increased through natural convection, thereby reducing the cost required for manufacturing, thereby increasing economic efficiency.

1 is an exemplary view showing a floodlight equipped with a heat dissipation module utilizing natural convection according to the present invention.
Figure 2 is an illustration showing an exploded floodlight equipped with a heat dissipation module utilizing natural convection according to the present invention.
3 is an exemplary view showing a floodlight equipped with a heat dissipation module utilizing natural convection according to the present invention from a different angle.
Figure 4 is an exemplary view showing a heat dissipation module according to the present invention.

Hereinafter, other objects and features of the present invention in addition to the above object will be apparent through the description of the embodiment with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

Hereinafter, a preferred embodiment of a floodlight equipped with a heat dissipation module utilizing natural convection according to the present invention will be described with reference to the accompanying drawings.

In the following description, the floodlight according to the present invention is disposed in an upper direction from the ground and is described according to an embodiment for irradiating light downward, but is not limited thereto.

That is, in the following description, an embodiment in which the light irradiated from the lighting module is irradiated downward is described, but the light irradiated from the lighting module may be arranged to face upward.

First, the floodlight 1 equipped with a heat dissipation module utilizing natural convection according to the present invention includes a housing 10, a lighting module 20 disposed inside the housing 10, and the housing 10 ) Is provided in the heat dissipation module 30 for dissipating heat generated during the operation of the lighting module 20 to the outside, and protecting the lighting module 20 and simultaneously diffusing the light irradiated from the lighting module 20 A cover 40 having a diffusion pattern 41 and a stabilizer 50 for supplying power to the lighting module 20 and a fixing bracket for fixing the stabilizer 50 above the housing 10 (60).

The housing 10 is made of an open-type enclosure, a convection movement hole 12 penetrated vertically in the center, and an illumination module 20 is disposed under the open bottom.

The housing 10 is capable of being modified in various forms in addition to the circular shapes shown in FIGS. 1 and 2, and is not limited to the illustrated shapes.

The convection movement hole 12 is formed to penetrate vertically from the center of the housing as shown in FIGS. 1 and 2, and external air having a relatively low temperature compared to the heat generated from the lighting module 20 is located at the bottom of the housing. The heat generated from the lighting module is quickly discharged to the outside by natural convection while passing from the top.

In the drawings, reference numeral 13 is a socket 13 to which the plug provided in the ballast 50 to be described later is coupled.

The lighting module 20 is disposed under the open lower portion of the housing 10 and operates by the applied power and signal, the PCB 21 and a plurality of LEDs 22 mounted on the PCB 21 It includes.

At this time, the PCB 21 is made of a plurality of independently of each other, each of which is detachably coupled to the housing 10.

That is, as shown in FIG. 2, a pair of semi-circular shapes are detachably coupled to the housing 10 independently of each other, and a plurality of LEDs 22 are radially disposed on each PCB 21.

The PCB 21 made as described above is operated in the state of being coupled to the housing to operate the LED 22 according to the applied power and signal to irradiate light, and in the process of replacing the LED 22 having an abnormality during operation, the corresponding LED Since only the PCB 21 on which the 22 is mounted is removed from the housing 10 and can be replaced, it is possible to reduce the cost required for maintenance.

Here, in addition to the embodiment shown in FIG. 2, the PCB 21 is composed of more objects, and by mounting a plurality of LEDs 22 on each PCB 21, the LEDs 22 are detachably coupled to the housing. ) Can reduce the cost of maintenance.

At this time, each PCB (21) is further formed with a coupling hole (21a) for fixing screws for separation and coupling with the housing (10).

The heat dissipation module 30 is for discharging the heat generated during the operation of the lighting module 20 to the outside, the convection moving hole 12 is disposed in the center of the housing and the center is penetrated vertically through the inner support ring (31), the inner circumferential surface of the inner support ring (31) and both ends are respectively disposed on the inner circumferential surface of the convection moving hole (12) and a plurality of spaced apart from each other, the inner radiating hole (33) between the adjacent pair The formed inner heat-radiating fin 32, the outer supporting ring 34 disposed at a position spaced apart from the outer rim of the housing 10, and a plurality of radially disposed on the upper surface of the housing 10, one end of the It is fixed to the outer support ring 34 and includes an outer heat-radiating fin (35) with an outer heat-radiating hole (36) formed between adjacent pairs.

The inner support ring 31 is disposed at a position spaced apart from the inner circumferential surface of the convection movement hole 12 as shown in FIGS. 1 to 4.

The inner support ring 31 is configured to be formed in a ring shape penetrated up and down as shown to allow outside air to pass through.

The inner radiating fin 32 is fixed to the housing 10 at one end, and fixed at the other end to the inner support ring 31, a plurality of which are disposed at mutually spaced locations on the outer circumferential surface of the housing 10. An inner heat-radiating hole 33 is formed between the pair.

The inner heat dissipation fin 32 is configured to dissipate heat generated from the lighting module 20 by moving it toward the convection hole and the inner support ring 31, and spaced apart a plurality of inner heat dissipation fins 32 to increase the heat dissipation effect. Arranged in a position and allowing the outside air to pass through the inner heat-radiating hole 33 formed therebetween, the heat conducted to the inner heat-radiating fins 32 can be discharged through the moving outside air.

The outer support ring 34 is disposed at a position spaced apart from the outer rim of the housing 10 and is formed in a ring shape with a top and bottom formed therethrough.

A space through which outside air passes is formed between the outer support ring 34 and the outer rim of the housing 10 so that heat generated in the lighting module is dissipated by the moving outside air.

The outer radiating fin 35 is a plurality of radially disposed on the upper surface of the housing 10 to receive heat generated during the operation of the lighting module 20 and discharge it to the outside.

The outer heat-radiating fins 35 are formed in the form of pins protruding upward from the upper surface of the housing 10, respectively, as shown in the figure, and a plurality of radially spaced mutually spaced pairs between the adjacent outer heat-radiating fins 35 The outer heat-radiating hole 36 through which the outside air passes is formed.

The outer heat-dissipating hole 36 is a space formed between a pair of adjacent outer heat-dissipating pins 35 and the outer frame of the housing 10 and the inner circumferential surface of the outer support ring 34, while the outside air passes and the outer heat-dissipating pin 35 It is possible to increase the heat dissipation effect by dissipating heat conducted to the outside and dissipating it to the outside.

The heat dissipation module 23 made as described above simultaneously heats the heat generated from the lighting module 20 together with the convection moving hole 12 formed in the housing 10 through the inner radiating hole 33 and the outer radiating hole 36. It maximizes the heat dissipation effect by making it come into contact with the outside air, and at the same time, it forms a streamlined shape with the inner radiating fin 32 and the outer radiating fin 35 to increase the heat dissipation efficiency, thereby discharging the high heat formed by the plurality of LEDs to the outside. It maximizes the heat dissipation effect.

On the other hand, the inner heat-radiating fins 32 and the outer heat-radiating fins 35 are each formed in a streamlined shape having a constant curvature to guide the moving direction of the outside air, increase the moving speed, and widen the contact area with the atmosphere. More preferred.

That is, the inner heat-radiating fin 32 and the outer heat-radiating fin 35 each contact the outside air after the heat generated in the lighting module 20 is conducted to release heat, and in order to release heat, the contact area with the outside air is widened as much as possible. It is preferable that the heat dissipation effect can be increased by increasing the circulation speed of the outside air by increasing the moving speed of the atmosphere.

To this end, the inner radiating fins 32 and the outer radiating fins 35 are respectively formed in a streamlined shape, so that cold air at the bottom of the housing 10 passes through the inner radiating holes 33 and the outer radiating holes 36 to cool the heat. Increase the heat dissipation efficiency by increasing the area where the air comes into contact with the inner and outer heat-radiating fins, and guide the direction in which the outside air moves in a streamlined manner, so that the outside air moving upwards in the housing rises in the form of a whirlwind, thereby increasing the movement speed of the outside air. It can be done.

That is, the outside air in the upper portion of the housing takes the form of a whirlwind through the inner radiating fins 32 and the outer radiating fins 35, so that the movement speed increases and the cold air at the bottom of the housing moves upward through the convection moving hole 12. It is possible to quickly release the heat of the lighting module 20 to the outside, thereby increasing the heat dissipation effect.

The cover 40 is fixed to the lighting module 20 to the housing 10 and diffuses light irradiated from the lighting module 20 at the same time, and protects the lighting module 20 from foreign substances and moisture. It is to increase the range and length of light diffusion.

To this end, the cover 40 is formed with a diffusion pattern 41 for diffusing and increasing the range and length of light.

The diffusion pattern 41 is formed to protrude toward the direction in which light is irradiated, but to continuously protrude to diffuse glare from the LED 22 to prevent glare due to the straightness of the light irradiated from the LED (FIG. 2, see the original enlargement).

In addition, by increasing the diffusion range of the light irradiated from the LED 22 and the distance irradiated through the diffusion pattern 41, light can be irradiated over a wide range with a relatively small number of LEDs 22, thereby improving economic efficiency. At the same time, since the number of the lighting modules 20 is small, there is an advantage of lowering the temperature of heat generation.

The stabilizer 50 is disposed at a position spaced upward from the upper surface of the housing 10 through the fixing bracket 60, by mounting in the bent interior of the fixing bracket 60, it is possible to increase the space utilization , It is to stably supply the power required by the LED (22).

Since the ballast 50 is the same as a known ballast, the internal structure and detailed operation relationship will be omitted.

The fixing bracket 60 is for fixing the stabilizer 50 at a position spaced apart from the upper side of the housing 10, and is fixed to the upper surface of the housing 10 through a fixing screw and disposed symmetrically to each other A pair of engaging pieces 61, a pair of vertical pieces 62 bent upward from the ends of the engaging pieces 61, and a horizontal piece 63 connecting the upper ends of the vertical pieces 62 and An arrangement space 64 is formed between the vertical piece 62 and the horizontal piece 63 to place the stabilizer 50.

The coupling piece 61 is for detachably coupling the fixing bracket 60 to the housing 10, and a coupling hole for screw angle fixing is formed.

The vertical piece 62 is formed to be bent upward from the end of the coupling piece 61 and a through hole 62a through which the outside air for discharging heat generated during the operation of the stabilizer 50 passes through the outside air is formed. .

The horizontal piece 63 connects the upper end of the vertical piece 62, and a fixing link 65 is disposed on the upper surface.

The fixing link 65 is a connection link for connecting a driving unit disposed on the ceiling when the floodlight according to the present invention is placed on the ceiling.

Here, the horizontal piece 63 forms a placement space 64 in which the stabilizer 50 is disposed between the pair of vertical pieces 62, and forms a spaced apart from the upper surface of the stabilizer to be stabilized ( 50) and the horizontal piece (63) is not in close contact with each other to form a spaced bent piece (63a) is capable of discharging the heat generated in the ballast (50) using external air is further formed.

On the other hand, the fixing bracket 60 made as described above minimizes the space required for placing the ballast by placing the stabilizer 50 in the arrangement space 64 formed between the vertical piece 62 and the horizontal piece 63. Since it is possible to reduce the load on the lighting unit, protect the ballast exposed to the outside from foreign substances, and since the ballast is exposed to the outside in a protected state, the time required for the maintenance of the ballast can be shortened. .

As described above, the present invention has been described by specific matters such as specific components, etc. and limited embodiments and drawings, but is provided to help the overall understanding of the present invention, and the present invention is not limited to the above embodiments , Those skilled in the art to which the present invention pertains can make various modifications and variations from these descriptions.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims, as well as the claims described below, will belong to the scope of the spirit of the present invention.

1: Floodlight equipped with heat dissipation module utilizing natural convection
10: housing
12: Convection mobile
20: lighting module
21: PCB 22: LED
30: heat dissipation module
31: inner support ring 32: inner heat release pin
33: inner radiator hole 34: outer support ring
35: outer radiating fin 36: outer radiating hole
40: cover
41: diffusion pattern
50: ballast
60: fixing bracket
61: coupling piece 62: vertical piece
63: horizontal 64: arrangement space

Claims (7)

The housing 10 is formed in the shape of an enclosure with an open lower portion and a convection moving hole 12 penetrated vertically in the center;
An illumination module 20 disposed at an open lower portion of the housing 10;
A heat dissipation module 30 provided in the housing 10 to discharge heat generated during the operation of the lighting module 20 to the outside;
A cover 40 coupled to the housing 10 to protect the front surface of the lighting module 20 and having a diffusion pattern 41 for diffusing light emitted from the lighting module 20;
A ballast 50 for supplying power to the lighting module 20; And
The stabilizer (50) includes a fixing bracket (60) for arranging to be positioned above the upper end of the housing (10),
The heat dissipation module 30 is disposed in the center of the convection movement hole 12 and the inner support ring 31 with a center penetrating up and down,
One end is coupled to the outer circumferential surface of the inner support ring 31, the other end is coupled to the inner circumferential surface of the convection moving hole 12, and a plurality of them are disposed at mutually spaced intervals to form an inner radiating hole 33 between adjacent pairs. Heat dissipation fins 32,
The outer support ring 34 is disposed at a position spaced apart from the outer edge of the housing 10 and the center penetrated up and down,
A plurality of radially disposed on the upper surface of the housing 10, one end is coupled to the inner circumferential surface of the outer support ring 34, and a plurality of are disposed at mutual intervals to form an outer heat-dissipating hole 36 between adjacent pairs. It includes a radiating fin 35,
The fixing bracket 60 is fixed to the upper surface of the housing 10 and a pair of coupling pieces 61 are disposed symmetrically to each other,
A pair of vertical pieces 62 formed by bending upward from the ends of the coupling pieces 61 and having through-holes 62a through which the heat generated during the operation of the stabilizer 50 passes through the outside air passes through the outside air. )and,
The horizontal piece 63 connecting the upper end of the vertical piece 62 and
An arrangement space 64 is formed between the vertical piece 62 and the horizontal piece 63 and the stabilizer 50 is disposed.
The horizontal piece 63 forms an arrangement space 64 in which the stabilizer 50 is disposed between the pair of vertical pieces 62, and forms a space spaced apart from the upper surface of the stabilizer 50 to form a stabilizer 50 ) And the horizontal piece (63) is not in close contact, and a space where a convection can be moved is formed to utilize a natural convection characterized in that a bending piece (63a) bent upward is formed so that heat generated from the stabilizer (50) is released. Floodlight with one heat dissipation module. delete The method according to claim 1,
The inner heat-radiating fins 32 and the outer heat-radiating fins 35 are each formed in a streamlined shape having a constant curvature in order to widen the contact area with the atmosphere, guide the direction of movement of convection to move, and increase the speed of movement. A floodlight equipped with a heat dissipation module utilizing natural convection. The method according to claim 1,
The lighting module 20 is a PCB (21),
It consists of a plurality of LED (22) mounted on the PCB (21),
The PCB (21) is made of a plurality of independent of each other, the housing 10, each of which is detachably coupled to the floodlight equipped with a heat dissipation module utilizing natural convection. delete delete The method according to claim 1,
The stabilizer 50 is disposed in the arrangement space 64 formed between the vertical piece 62 and the horizontal piece 63, and is formed in a bent inner space of the fixing bracket to minimize the space area. Floodlight equipped with heat dissipation module utilizing natural convection.

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