KR101635178B1 - LED floodlight with heat dissipation function - Google Patents

LED floodlight with heat dissipation function Download PDF

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Publication number
KR101635178B1
KR101635178B1 KR1020150161466A KR20150161466A KR101635178B1 KR 101635178 B1 KR101635178 B1 KR 101635178B1 KR 1020150161466 A KR1020150161466 A KR 1020150161466A KR 20150161466 A KR20150161466 A KR 20150161466A KR 101635178 B1 KR101635178 B1 KR 101635178B1
Authority
KR
South Korea
Prior art keywords
led
coupled
plate
heat
module
Prior art date
Application number
KR1020150161466A
Other languages
Korean (ko)
Inventor
채승우
Original Assignee
(주)와이앤엘
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Publication date
Application filed by (주)와이앤엘 filed Critical (주)와이앤엘
Priority to KR1020150161466A priority Critical patent/KR101635178B1/en
Application granted granted Critical
Publication of KR101635178B1 publication Critical patent/KR101635178B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21K9/30—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/162—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to traction or compression, e.g. coil springs
    • F21V29/004—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • F21Y2101/02—

Abstract

The present invention relates to an LED projector with a heat emitting function. The LED projector comprises: a heat emitting rod; a Peltier module; and a step-by-step heat emitting configuration made of a door which is automatically opened or closed in accordance with a temperature. Therefore, the LED projector improves a heat emitting structure of an LED module to effectively protect an LED and a PCB from heat of a high temperature.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an LED floodlight with a heat dissipation function,

The present invention relates to an LED light emitter. More particularly, the present invention relates to a LED light emitter, and more particularly, to a LED light emitter having a heat radiator, a Peltier module, and a stepwise heat dissipation structure including a door that is automatically opened and closed according to temperature, The present invention relates to an LED light emitter having a heat dissipation function that can effectively protect PCBs from high temperatures.

Generally, the light emitter is an illuminating device capable of illuminating light of a desired brightness in a relatively wide place indoors or outdoors, and is installed on the outside of these to illuminate architectural structures, memorial structures, various stadiums, and the like.

Such a floodlight is expensive because it has a structure capable of irradiating relatively high luminance light, and is relatively inadequate for application to small memorial structures or landscape lighting.

In consideration of this point, a light emitter using an LED (light emitting diode) has been proposed so that it can be easily applied to a relatively small structure, a landscape lighting, a signboard, etc. In the Utility Model Registration No. 20-0393988, have.

However, in the above-described conventional floodlight, more heat is generated when an LED used as a lamp is used for a high brightness. However, there is a limit to sufficiently cooling the LED, so that the LED is deteriorated and life is greatly shortened.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a heat radiating structure including a heat radiator, a Peltier module, and a door that is automatically opened or closed according to temperature, And it is an object of the present invention to provide an LED light emitter having a heat dissipation function that can effectively protect a PCB from high temperature.

In the LED light emitter having a heat dissipating function according to the present invention, a plurality of LED modules are coupled to the inside of the main body. In the LED module, a PCB having a plurality of LEDs is coupled to the front surface of the LED module, A heat sink is coupled to the rear surface of the coupling plate. The LED module is coupled to a front surface of a mounting plate coupled to the inside of the main body, and a mounting space is formed in the mounting plate so that the coupling plate of the LED module can be fixed by the coupling means A Peltier module is installed on one side of the rear surface of the mounting plate to cool the heat generated in the LED module and a plurality of closely contacted portions are provided on the coupling plate at positions corresponding to the respective LEDs, Holes are formed in the heat dissipation plate, and a plurality of heat dissipation rods are provided in the heat dissipation plate so as to pass through the close holes and to be in close contact with the back surfaces of the respective LEDs. .

According to the LED light emitter having a heat dissipating function according to the present invention, the bonding plate made of aluminum absorbs the heat of the LED on the back surface of the PCB, absorbs the heat radiated from each LED in the heat- It is possible to prevent abnormal operation and breakdown, and it is easier to maintain the light emitter.

1 is a perspective view showing a first embodiment of an LED light projector according to the present invention,
FIG. 2 is an exploded front perspective view of the LED light emitter according to the present invention,
3 is an exploded perspective view of the LED module according to the present invention,
4 is a rear perspective view of an LED light projector according to the present invention,
5 is a plan view showing a second embodiment of the present invention,
6 is a plan view showing a third embodiment of the present invention,
7 is a left side view showing a fourth embodiment of the present invention.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the LED light emitter having a heat radiation function according to the present invention is provided with a rectangular body 10, and the body 10 is supported by a support 11 ) On both sides.

A front cover 20 is detachably attached to a front surface of the main body 10 and a light transmitting cover 21 is coupled to the front cover 20 to diffuse and emit the emitted light to the outside .

As shown in FIG. 2, a plurality of LED modules 100 are provided inside the main body 10 to emit light when power is applied thereto. The LED module 100 includes a main body 10, And a mounting space 13 is formed in the mounting plate 12 so that the mounting plate 40 of the LED module 100 can be fixed to the mounting plate 12 by means of a coupling means such as a bolt Respectively.

3, the LED module 100 is provided at its center with a coupling plate 40 coupled to the installation space 13 of the installation plate 12, and a plurality of And a heat sink 60 is coupled to the rear surface of the coupling plate 40. The heat sink 60 is connected to the PCB 50 through which the LEDs 51 are mounted.

The coupling plate 40 is made of aluminum so as to quickly absorb the heat generated from the LED 51 and has a corresponding space portion 41 having a corresponding shape so that the PCB 50 can be inserted thereinto And a plurality of tightening holes 42 are formed in the coupling space 41 so as to allow the heat of the LED 51 to be discharged to the back side at a position corresponding to the LED 51. [

The heat dissipating rod 61 is screwed into the heat dissipating plate 60 so that the front end of the heat dissipating rod 61 protrudes from the front surface at a predetermined height. And is in close contact with the rear surface of the LED 51.

The heat dissipating rod 61 extends horizontally from the inner side of the main body 10 to the front and rear surfaces and may be formed of iron, aluminum, copper, or the like. It is most preferable to be made of copper (Cu).

In the LED module 100 according to the present invention, the heat dissipating rod 61 protruding from the front surface of the heat dissipating plate 60 is in close contact with the back surface of the LED 51, And the backside space 14 is formed on the rear surface of the main body 10 so that the ventilation of the heat can be performed more quickly.

In the LED light emitter having the heat dissipating function of the present invention having the above-described structure, the bonding plate 40 made of aluminum on the back surface of the PCB 50 absorbs the heat of the LEDs 51, It is possible to prevent overheating of the PCB 50 by absorbing the heat dissipating rod 62 and releasing the heat as quickly as possible.

5, the Peltier module 70 is coupled to one side of the rear surface of the mounting plate 12, so that the heat generated inside the main body 10 can be cooled more effectively have.

The Peltier module 70 is a product using a Peltier element that combines two kinds of conductors and causes a current to flow when one of the contacts generates heat and the temperature rises while the other end absorbs heat to lower the temperature. The detailed description will be omitted.

Also, as a third embodiment of the present invention, the Peltier module 70 may be configured to operate in a variable manner depending on whether heat is generated as shown in FIG.

That is, the Peltier module 70 is coupled to the moving plate 71. The moving plate 71 is provided with a guide part 72, and the guide part 72 is coupled with the mounting plate 12 And a shape memory spring 74 is coupled to the guide 73. As shown in Fig. One end of the shape memory spring 74 is fixed to the back surface of the mounting plate 12 and the other end is fixed to the moving plate 71.

The shape memory spring 74 is made of a shape memory metal that memorizes the shape when the shape is initially formed even if deformation occurs and returns to the shape when the temperature reaches a certain temperature. When the temperature of the mounting plate 12 rises, The Peltier module 70 is brought close to the mounting plate 12 so as to perform the cooling of the PCB 50 by moving the moving plate 71 toward the mounting plate 12. [

When the temperature of the mounting plate 12 is lowered by the cooling effect of the Peltier module 70, the shape memory spring 74 expands to move the moving plate 71 and the Peltier module 70 away from the mounting plate 12 do.

7, the temperature of the inside of the main body 10 can be lowered by connecting a plurality of doors 80 that can be opened and closed to both sides of the main body 10 .

To this end, a plurality of openings 82 are formed on both sides of the main body 10 so as to discharge the inside heat, and a door 80, which is rotated by the hinge 81, A control unit (not shown) rotates the hinge 81 to open the door 80 to exhaust the heat inside the main body 10, and the temperature sensor 83 is connected to the hinge 81, And closes the door 80 when the temperature is lower than a predetermined temperature.

Operation of the hinge 81 through a driving device (not shown) according to the control signal transmitted from the temperature sensor 83 in the control unit can be implemented simply by a general electronic component, and thus a detailed description thereof will be omitted.

As described above, according to the present invention, various heat-dissipating functions are added to the LED light emitter to prevent overheating of the PCB 50 by the plurality of LEDs 51, thereby preventing abnormal operation and malfunction, have.

10: main body 11: support
12: installation plate 13: installation space part
14: rear space part 20: front cover
21: Projection cover 30: Rear cover
40: coupling plate 41: coupling space part
42: Adhering hole 50: PCB (PCB)
51: LED (LED) 60: heat sink
61: heat sink 70: Peltier module
71: moving plate 72:
73: guide 74: shape memory spring
80: Door 81: Hinge
82: opening part 83: temperature sensor
100: LED module

Claims (6)

An LED light emitter in which a plurality of LED modules are coupled to the inside of a main body,
The LCD module 100 includes a PCB 50 having a plurality of LEDs 51 mounted on a front surface of a coupling plate 40. A heat sink 60 is coupled to a rear surface of the coupling plate 40, The LED module 100 is coupled to a front surface of a mounting plate 12 coupled to the inside of the main body 10 and a coupling plate 40 of the LED module 100 is coupled to the mounting plate 12 by coupling means And a Peltier module 70 is installed at one side of the back surface of the mounting plate 12 to cool the heat generated in the LED module 100,
A plurality of adhesion holes 42 are formed in the coupling plate 40 at positions corresponding to the respective LEDs 51 so as to discharge the heat generated from the LED 51 to the backside. Wherein a plurality of heat dissipating rods (61) are coupled to the back surface of each of the LEDs (51) through the contact hole (42).
The method according to claim 1,
Wherein the heat radiating rod (61) is made of any one of iron, aluminum, and copper.
The method according to claim 1,
The Peltier module 70 is coupled to a moving plate 71 having a plurality of guiding parts 72. A guide 73 fixed to the mounting plate 12 is inserted into the guiding part 72,
One end of the guide plate 73 is fixed to the mounting plate 12 so as to move the moving plate 71 and the Peltier module 70 and the other end is moved And a shape memory spring (74) fixed to the plate (71) is provided.
The method according to claim 1,
A plurality of openings 82 are formed on the outer side of the main body 10 and a door 80 is coupled to the opening 82 so as to be rotatable by a hinge 81. The hinge 81 And the temperature sensor (83) is connected to open / close the door (80) according to the set temperature. delete delete
KR1020150161466A 2015-11-18 2015-11-18 LED floodlight with heat dissipation function KR101635178B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150161466A KR101635178B1 (en) 2015-11-18 2015-11-18 LED floodlight with heat dissipation function

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Application Number Priority Date Filing Date Title
KR1020150161466A KR101635178B1 (en) 2015-11-18 2015-11-18 LED floodlight with heat dissipation function

Publications (1)

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KR101635178B1 true KR101635178B1 (en) 2016-06-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101905700B1 (en) * 2017-04-24 2018-10-11 제이비씨씨(주) Led light

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138418U (en) * 1987-03-04 1988-09-12
KR20120031277A (en) * 2012-01-31 2012-04-02 주식회사 랜드스타 Guard light with a led lamp
KR20120134776A (en) * 2011-06-03 2012-12-12 주식회사 포스코엘이디 Optical semiconductor based illuminating apparatus
KR20130091108A (en) * 2012-02-07 2013-08-16 주식회사 디엘에스 Casing device for lighting apparatus using led

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138418U (en) * 1987-03-04 1988-09-12
KR20120134776A (en) * 2011-06-03 2012-12-12 주식회사 포스코엘이디 Optical semiconductor based illuminating apparatus
KR20120031277A (en) * 2012-01-31 2012-04-02 주식회사 랜드스타 Guard light with a led lamp
KR20130091108A (en) * 2012-02-07 2013-08-16 주식회사 디엘에스 Casing device for lighting apparatus using led

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101905700B1 (en) * 2017-04-24 2018-10-11 제이비씨씨(주) Led light

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