KR20090096319A - Light by Pulse Width Modulation control - Google Patents

Light by Pulse Width Modulation control Download PDF

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Publication number
KR20090096319A
KR20090096319A KR1020090015276A KR20090015276A KR20090096319A KR 20090096319 A KR20090096319 A KR 20090096319A KR 1020090015276 A KR1020090015276 A KR 1020090015276A KR 20090015276 A KR20090015276 A KR 20090015276A KR 20090096319 A KR20090096319 A KR 20090096319A
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South Korea
Prior art keywords
led
lamp
reflector
cpu
present
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KR1020090015276A
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Korean (ko)
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최희교
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최희교
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/00—Reflectors for light sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A lamp is provided to improve light emitting efficiency by arranging a reflecting unit having a fixed tilt angle in each LED. A sensor(10) detects an environment change around a lamp. A supply voltage detecting circuit(20) detects a change of a DC voltage. A CPU(40) calculates a duty ratio according to a lamp control algorithm, and outputs a PWM pulse. A constant current drive circuit(50) drives an LED(30) by the PWM pulse received from the CPU. A power supply part(60) supplies a DC voltage. The LED is received in the receiving part. A reflector covers the LED. An inner surface of the reflector is plated with silver and chrome in order to reflect a light of the LED. The reflector is inclined upward with a fixed angle.

Description

ＰＷＭ 펄스제어에 의한 조명등{Light by Pulse Width Modulation control}Light by Pulse Width Modulation control

본 발명은 PWM 펄스제어에 의한 조명등에 관한 것이다. 본 발명은 더욱 상세하게는 복수 개의 LED가 배치된 조명등의 각각의 LED 불빛이 반사수단을 통해 반사되어 발광효율을 향상시킬 수 있도록 한 기술이다. The present invention relates to a lamp by PWM pulse control. More particularly, the present invention is a technology in which each LED light of a lamp having a plurality of LEDs arranged thereon is reflected through reflecting means to improve luminous efficiency.

일반적인 조명등은 정전류 소자를 이용한 제어장치에 의해 제어되며, 여기에 AC 전압을 DC 전압으로 변환시켜 전압 및 전류기능을 부가하는 장치도 많이 사용되고 있다. 이러한 장치에 구성되는 전원장치는 통상적으로 스위칭 변조 전원장치(SMPS : Switching Modulation Power Supply), 어댑터 등으로 출력전력을 확정하여 LED 공급 전원으로 사용할 수 있도록 하며, 특히 저항을 통해 출력전류의 적절한 조절이 가능토록 한다. A general lamp is controlled by a control device using a constant current device, and a device that converts an AC voltage into a DC voltage and adds a voltage and a current function is also used. The power supply of such a device is typically used as a LED supply power by deciding the output power with a Switching Modulation Power Supply (SMPS), an adapter, etc. Make it possible.

상기와 같은 종래 조명등 제어장치는 일반조명 및 반도체장비에서 비젼(VISION)장치의 조명, 광고업계의 컬러 조명, 가로등, 공원등 및 기타 조명이 필요한 부분에 적용되고 있다.Conventional lighting control device as described above has been applied to the lighting (vision) of the general lighting and semiconductor equipment, color lighting of the advertising industry, street lights, park lights and other lighting needs.

그러나 기존의 조명등 제어장치는 공급되는 전원에 램프(메탈, 나트륨 등)를 장착하므로 전력소모가 높고 램프의 수명이 단축되는 단점이 있다. 또한 현재 시판되는 LED 조명 관련제품들도 단순히 저항을 출력전류 조절용으로 구성한 것들이기 때문에 제품의 산포가 크고, 전류 특성으로 인한 전압변화는 물론, 주위 환경 변화에 따라 출력특성이 변화하여 효율적인 조명등 역할에는 한계가 있을 수밖에 없다.However, the conventional lighting controller has a disadvantage that the power consumption is high and the lamp life is shortened because the lamp (metal, sodium, etc.) is mounted on the power supply. In addition, the LED lighting related products on the market are simply configured for output current control, so the distribution of the product is large, and the output characteristics change according to the change of the surrounding environment as well as the voltage due to the current characteristics. There is bound to be a limit.

또한 기존의 조명등은 뚜렷하게 일정범위에 대한 발광효율을 향상시킬 수 있는 기구적인 구조가 개시되어 있지 않다. In addition, the conventional lighting is not disclosed a mechanical structure that can significantly improve the luminous efficiency for a certain range.

따라서 본 발명은 종래 조명등에 관련된 문제점을 개선하기 위하여 이루어진 것으로써, 본 발명의 목적은 조명등용으로 배치된 복수 개의 LED에 각각 상향으로 일정각도를 갖는 반사수단을 통해 발광효율을 향상시킬 수 있도록 한 조명등을 제공하는 것이다.Therefore, the present invention was made to improve the problems associated with the conventional lamps, the object of the present invention is to improve the luminous efficiency through the reflecting means having a predetermined angle upwards to the plurality of LEDs arranged for the lamps, respectively. To provide lighting.

상기 목적을 달성하기 위한 본 발명의 PWM 펄스제어에 의한 조명등은, 수납부에 수납되어 기판에 복수 개가 종횡으로 배치된 LED에 그 내면이 은과 크롬 도금 처리되어 상향 경사지게 형성된 반사갓이 각각 씌워진 것을 특징으로 한다.The illumination lamp according to the PWM pulse control of the present invention for achieving the above object is, the inner side is covered with silver and chrome plated reflector shades formed on the substrate in a plurality of vertically and horizontally arranged on the substrate and covered with a reflection shade, respectively. It is done.

또한 본 발명의 다른 실시예에 따른 조명등은, 일정두께를 갖도록 제조된 기 판에 복수 개가 종횡으로 배치된 LED에 그 내면이 은과 크롬 도금 처리되어 상향 경사지게 성형된 반사부가 기판의 두께 범위내에서 형성된 것을 특징으로 한다.In addition, the lamp according to another embodiment of the present invention, the LED is arranged in a plurality of longitudinally and horizontally arranged on the substrate manufactured to have a constant thickness, the inner surface of the reflector is formed to be inclined upward by silver and chrome plating within the thickness range of the substrate Characterized in that formed.

본 발명의 PWM 펄스제어에 의한 조명등 및 그 제어장치에 따르면 복수 개의 LED 각각에 상향으로 일정각도 경사각을 갖는 반사수단을 통해 LED 불빛의 반사를 증진시켜 발광효율을 향상시킬 수 있다. According to the lamp and the control device according to the PWM pulse control of the present invention can improve the luminous efficiency by improving the reflection of the LED light through the reflecting means having a predetermined angle of inclination upward to each of the plurality of LEDs.

이하, 본 발명의 실시예를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시예에 따른 조명등 제어장치의 구성도, 도 2는 본 발명의 제어장치에 구성되는 CPU에서 제어된 PWM 펄스의 예시도, 도 3은 본 발명의 조명등에 해당되는 공원등 및 보안등의 구성 예시도, 도 4는 본 발명의 조명등에 해당되는 가로등의 구성 예시도, 도 5는 본 발명의 조명등에 구성되는 LED의 배치를 도시한 도면, 도 6은 도 5의 LED에 반사갓이 씌워진 상태를 도시한 도면, 도 7 및 도 8은 각도를 달리하는 반사갓의 형상 예시도, 도 9는 본 발명의 다른 실시예에 따른 반사부를 포함하는 조명등의 사시도이다. 1 is a block diagram of a lighting lamp control apparatus according to an embodiment of the present invention, Figure 2 is an illustration of a PWM pulse controlled by a CPU configured in the control device of the present invention, Figure 3 is a park lamp corresponding to the lighting lamp of the present invention 4 is a diagram illustrating a configuration of a street lamp corresponding to a lamp of the present invention, FIG. 5 is a diagram showing an arrangement of LEDs configured in the lamp of the present invention, and FIG. 6 is a reflection shade on the LED of FIG. 7 and 8 are diagrams illustrating shapes of reflecting shades having different angles, and FIG. 9 is a perspective view of a lamp including a reflecting unit according to another embodiment of the present invention.

본 발명의 조명등 제어장치는 도 1에 도시한 바와 같이 조명등 주위환경변화(온도, 습도 및 반도체 소자 타입 등)를 검출하는 센서(10)와, 본 발명의 장치에 공급되는 DC 전압변화를 검출하는 공급전압검출회로(20)와, 시각적으로 다양한 디 자인 연출이 가능하도록 발광되는 고휘도 LED(White, Red, Green, Blue LED)(30)와, 상기 LED(30) 구동을 위해 조명등 제어알고리즘에 따라 듀티비(Duty Ratio)를 연산하여 예를 들어 도 2에 도시한 바와 같이 제어된 PWM 펄스를 출력하는 CPU(40)와, 상기 CPU(40)로부터 PWM 펄스를 입력받아 LED를 구동하는 정전류 드라이브회로(50)와, 장치 구동용 DC 전압을 제공하는 전원부(POWER)(60)로 구성된다.As shown in FIG. 1, the lamp control apparatus of the present invention includes a sensor 10 that detects a change in ambient conditions (such as temperature, humidity, and semiconductor element type) of a lamp, and a DC voltage change supplied to the apparatus of the present invention. In accordance with the supply voltage detection circuit 20, a high brightness LED (White, Red, Green, Blue LED) (30) that emits light to enable a variety of visual design, and according to a lighting control algorithm for driving the LED (30) CPU 40 for outputting a controlled PWM pulse by calculating a duty ratio, for example, as shown in FIG. 2, and a constant current drive circuit for driving an LED by receiving a PWM pulse from the CPU 40. 50 and a power supply unit 60 for providing a DC voltage for driving the device.

상기 공급전압검출회로(20)는 일반적으로 공지된 저항 등을 이용하여 전압을 분배하여 이를 CPU(40)에 입력함으로써 디지털신호로 변환된 현재의 공급전압을 판단하여 초과 혹은 미달에 따라 적절한 보상이 이루어지도록 하는 부분으로, 예를 들어 DC 공급전압이 정상전압에 미달되는 경우 CPU(40)에 의해 PWM 펄스의 듀티비의 ON TIME을 증가시켜 정전류가 되도록 함으로써 LED(30)의 안정한 동작이 가능토록 한다.The supply voltage detection circuit 20 generally divides a voltage using a known resistor or the like and inputs it to the CPU 40 to determine a current supply voltage converted into a digital signal. For example, when the DC supply voltage is lower than the normal voltage, the CPU 40 increases the ON time of the duty ratio of the PWM pulses to become a constant current so that the stable operation of the LED 30 is possible. do.

또한 상기 CPU(40)는 자체에 내장된 모듈이나 타이머/카운터 등 내부 레지스터를 활용하여 센서(10)와 회로(20)의 검출값에 따라 LED(30)를 정상 구동시키기 위한 보상 처리 후 제어된 PWM 펄스를 발생하는 부분으로, 타이머/카운터 상수값을 세팅하여 듀티비(ON/OFF 출력비율)를 확정한 후 PWM 펄스를 출력한다. In addition, the CPU 40 is controlled after a compensation process for normally driving the LED 30 according to the detection value of the sensor 10 and the circuit 20 by utilizing internal registers such as a module or a timer / counter built in the CPU 40. This part generates the PWM pulse, and sets the timer / counter constant to determine the duty ratio (ON / OFF output ratio) and then output the PWM pulse.

여기서 상기 센서(10)의 역할로는 외부온도 상승으로 인해 방열판 케이스의 열방출속도가 느려져 제품온도가 약간씩 상승하는 것, PWM 펄스에 의한 정전류제어로 인해 반도체소자의 동작 과부하로 온도가 상승하는 것, 장치의 장시간 동작으로 인한 온도가 상승하는 것 등등을 검출하는 기능을 갖는다고 할 수 있을 것이다.Here, the role of the sensor 10 is that the heat release rate of the heat sink case is slowed down due to the increase in external temperature, so that the product temperature rises slightly, and the temperature rises due to the operation overload of the semiconductor device due to the constant current control by the PWM pulse. It may be said that it has a function of detecting that the temperature rises due to the long time operation of the device.

본 발명은 상기와 같은 주요구성과 아울러, LED 구동시 발생되는 열을 흡수 하여 방출하는 방열판, LED 조명등 제어시 선택적으로 사용될 수 있는 배광판 및, 시스템 케이스부 등의 장치가 추가 구성된다.The present invention, in addition to the main configuration as described above, the heat sink for absorbing and dissipating the heat generated when driving the LED, the light distribution plate that can be selectively used in the control of LED lighting, and the system case unit is further configured.

익히 설명한 바와 같이 본 발명의 조명등 구동시 주위환경변화에 대한 보상은 도 1에 도시한 바와 같은 센서(온도, 습도, 조도센서 등)(10), 또는 반도체소자로 구성되어 조도 및 주위환경변화(예를 들어, 온도변화에 따라 저항 값이 변하는 소자 이용) 등을 검출한 값을 CPU(40)에서 입력받아 보상하여 PWM 펄스를 제어하는 방법으로 행해진다. As described above, the compensation for the change in the ambient environment when driving the lamp of the present invention is composed of a sensor (temperature, humidity, illuminance sensor, etc.) 10 or a semiconductor element as shown in FIG. For example, the CPU 40 receives a value detected by the CPU 40 and compensates for the PWM pulse.

상기 CPU(40)로부터 PWM 펄스를 입력받은 정전류 드라이브 회로(50)는 통상적인 환경(상온)에서는 일정한 전류로 LED(30)의 휘도를 안정하게 하지만, LED 소자 특성, 드라이브 소자 등 반도체소자 특성의 변화에 의한 수 mA ~ 수십mA 이상의 전류변화로 인한 LED(30) 휘도의 불안정시에는 CPU(40)에서 일정하게 제어된 PWM 펄스를 입력받아 LED(30)를 구동하므로 밝기를 안정하게 유지시켜 제품의 안정성과 신뢰성을 확보할 수 있다.The constant current drive circuit 50 receiving the PWM pulse from the CPU 40 stabilizes the brightness of the LED 30 with a constant current in a normal environment (room temperature). When the brightness of the LED 30 is unstable due to the current change of several mA to several tens of mA or more due to the change, the LED 30 is driven by receiving a constant controlled PWM pulse from the CPU 40, thereby keeping the brightness stable. It can secure the stability and reliability.

온도상승시 CPU(40)의 보상방법을 설명하면, 예를 들어 PWM 듀티비를 50%(ON) : 50%(OFF)에서 40%(ON) : 50%(OFF)로 제어하여 상승온도가 시간에 비례한 값으로 점차 내려가면서 적정온도가 유지되도록 하는바, 듀티비의 ON TIME이 최초 50%로 설정된 상태에서 온도상승에 따라 예를 들어 48%, 46%, 45% 등으로 하향변화하도록 조절한다. The compensation method of the CPU 40 when the temperature rises is described. For example, the PWM duty ratio is controlled from 50% (ON): 50% (OFF) to 40% (ON): 50% (OFF) so that the rising temperature is increased. The temperature is gradually decreased to a value proportional to the time, so that the appropriate temperature is maintained.The duty ratio is changed to 48%, 46%, 45%, etc. according to the temperature rise while the ON TIME of the duty ratio is initially set to 50%. Adjust.

한편, 본 발명에서는 다양한 디자인과 시인성 확보를 위해 고휘도 LED를 채택하며, 소비전력이 다양하도록(1W, 3W, 5W, 10W, 20W 이상) 구성하여 여러 가지 (일반조명, 공원등, 가로등) 용도로 사용할 수 있도록 한다. 또한 LED(30)는 White를 적용하여 제품에 응용하고 향후 Red, Green, Blue 등 Color LED를 채택하여 다양한 기능의 제품에 적용 가능토록 한다.On the other hand, the present invention adopts a high-brightness LED to secure a variety of designs and visibility, and configured to various power consumption (1W, 3W, 5W, 10W, 20W or more) for various uses (general lighting, park lights, street lights) Make it available. In addition, the LED 30 is applied to the product by applying the white, and in the future to adopt a color LED, such as red, green, blue so that it can be applied to a product of various functions.

한편, LED(30) 구동시 발생 열을 흡수하여 방출하는 방열판(드라이브 PCB에 장착)은 알루미늄 혹은 알루미늄 합금 재질로 제조하며 그 형상은 제품의 종류에 따라 달리하도록 한다. Meanwhile, a heat sink (mounted on the drive PCB) that absorbs and emits heat generated when the LED 30 is driven is made of aluminum or an aluminum alloy, and its shape may vary depending on the type of product.

또한 LED(30) 장착 및 구동용 드라이브 기판(100)은 알루미늄 PCB 또는 FR4 PCB를 사용 제조토록 한다. 고휘도 LED를 적용한 공원등 및 가로등은 열을 흡수하여 방출하는 것이 중요하기 때문에 외장 케이스를 고강도 알루미늄 재질을 사용하여 제조하도록 한다. 알루미늄 PCB는 열 전도성이 우수하여 고휘도 LED 드라이브시 발생되는 열 방출이 용이하므로 도 3 및 도 4에 도시한 공원등 및 가로등에서 제품별로 구분하여 적용하며, FR4 PCB는 일반조명 및 공원등에 주로 사용한다.In addition, the drive substrate 100 for mounting and driving the LED 30 may be manufactured using an aluminum PCB or a FR4 PCB. Park and street lamps with high-brightness LEDs are important for absorbing and dissipating heat. Aluminum PCB has excellent thermal conductivity, so it is easy to dissipate heat generated in high-brightness LED drive, so it is applied to each product in park lights and street lamps shown in FIGS. 3 and 4, and FR4 PCB is mainly used for general lighting and park lights. .

그리고 LED 광원은 직진성이 양호하므로 배광판(ABS 재질)을 구성하지 않아도 필요한 조도를 생성할 수 있으나, 선택적으로 배광판을 적용하여 빛의 각도 및 집중화를 시켜서 제품에 적용할 수도 있다.And since the LED light source has a good straightness, it is possible to generate the required illuminance without configuring the light distribution plate (ABS material), but it can be applied to the product by selectively applying the light distribution plate to angle and concentrate the light.

LED(30)의 발광효율 향상을 위한 구조가 도 5 내지 도 8에 도시되어 있다.A structure for improving luminous efficiency of the LED 30 is shown in FIGS. 5 to 8.

도 5에 도시한 바와 같이 본 발명의 LED(30)는 기판(100)에 복수 개가 종횡으로 배치되며 이들 LED(30)는 본 발명의 제어장치에 전기적으로 연결되어 있다.As shown in FIG. 5, a plurality of LEDs 30 of the present invention are disposed on a substrate 100 vertically and horizontally, and these LEDs 30 are electrically connected to the control device of the present invention.

본 발명의 LED(30)는 일정높이를 갖도록 배치된 수납부(31)에 수납되어 제어장치에 전기적으로 연결되며, 이러한 복수의 LED(30)는 각각 도 6에 도시한 바와 같이 반사갓(70)이 씌워지게 된다. 도 7 및 도 8에 도시한 바와 같이 반사갓(70)의 하부(71)가 균일한 직경의 일정높이를 갖도록 제조되므로 이 부분이 상기 수납부(31) 외주면과 접촉하면서 견고하게 LED(30)를 씌우는 것이다.The LED 30 of the present invention is accommodated in the accommodating part 31 arranged to have a predetermined height and electrically connected to the control device. The plurality of LEDs 30 are reflected shades 70 as shown in FIG. This will be covered. As shown in FIGS. 7 and 8, the lower portion 71 of the reflection shade 70 is manufactured to have a constant height with a uniform diameter, so that the portion contacts the outer circumferential surface of the accommodating portion 31 so that the LED 30 is firmly connected. It is covering.

이러한 반사갓(70)은 LED(30)의 불빛을 반사하도록 그 내면이 은과 크롬 도금 처리된다.The reflector 70 is silver and chrome plated on its inner surface to reflect the light of the LED (30).

또한 반사갓(70)의 상향 경사진 각도는 90°± 5° 및 80°±5° 정도를 적용하고, 하부(71) 높이는 15㎜±3mm 및 20㎜±5㎜ 정도로 설계한다. 이러한 반사갓(70)은 그 형상에 제한이 없으며, 경사각 및 높이 또한 특정하게 한정하는 것은 아니다.In addition, the angle of upward inclination of the reflection shade 70 is applied to about 90 ° ± 5 ° and 80 ° ± 5 °, the lower portion 71 is designed to about 15 mm ± 3 mm and 20 mm ± 5 mm. The reflection shade 70 is not limited in shape, and the inclination angle and height are not particularly limited.

또한 본 발명의 다른 실시예에 따른 반사부(200)가 도 9에 도시되어 있는 바 도 9에 따르면 도 7 및 도 8에 도시된 반사갓(70)의 형상을 일정두께를 갖도록 제조된 기판(100)에 그 두께내에서 자체적으로 성형하고, 이 같이 성형된 반사부(200)의 하단부에 각각 LED(30)를 배치함으로써 도 7 및 도 8의 반사갓(70)과 동일 유사한 기능 수행이 가능토록 한다. In addition, the reflector 200 according to another exemplary embodiment of the present invention is shown in FIG. 9. According to FIG. 9, the substrate 100 manufactured to have a predetermined thickness in the shape of the reflector 70 shown in FIGS. 7 and 8. By molding itself within the thickness thereof, and by placing the LEDs 30 at the lower end of the molded reflector 200, the same function as that of the reflection shade 70 of Figs. .

한편 상기 반사갓(70)과 반사부(200)는 각각 알루미늄 증착을 할 수도 있다. Meanwhile, the reflector 70 and the reflector 200 may be aluminum deposited, respectively.

도 1은 본 발명의 실시예에 따른 조명등 제어장치의 구성도.1 is a block diagram of a lighting control device according to an embodiment of the present invention.

도 2는 본 발명의 제어장치에 구성되는 CPU에서 제어된 PWM 펄스의 예시도.2 is an exemplary diagram of a PWM pulse controlled by a CPU configured in the control device of the present invention.

도 3은 본 발명의 조명등에 해당되는 공원등 및 보안등의 구성 예시도.Figure 3 is an exemplary view of the configuration of the park lights and security lights corresponding to the lighting of the present invention.

도 4는 본 발명의 조명등에 해당되는 가로등의 구성 예시도.Figure 4 is an exemplary view of the configuration of a street lamp corresponding to the lamp of the present invention.

도 5는 본 발명의 조명등에 구성되는 LED의 배치도면.Figure 5 is a layout view of the LED configured in the lamp of the present invention.

도 6은 도 5의 LED에 반사갓이 씌워진 상태도면.6 is a state diagram in which the reflector is covered with the LED of FIG.

도 7 및 도 8은 각도를 달리하는 반사갓의 형상 측면도.7 and 8 are side views of the shape of the reflector with different angles.

도 9는 본 발명의 다른 실시예에 따른 반사부를 포함하는 조명등의 사시도. 9 is a perspective view of a lamp including a reflector according to another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings

10 : 센서 20 : 공급전압 검출회로10 sensor 20 supply voltage detection circuit

30 : LED 40 : CPU30: LED 40: CPU

50 : 정전류 드라이브회로 60 : 전원부(POWER)50: constant current drive circuit 60: power supply (POWER)

70 : 반사갓 200 : 반사부 70: reflection shade 200: reflector

Claims (2)

수납부(31)에 수납되어 기판(100)에 복수 개가 종횡으로 배치된 LED(30)에 그 내면이 은과 크롬 도금 처리되어 상향 경사지게 형성된 반사갓(70)이 각각 씌워진 것을 특징으로 하는 조명등.The LED lamp 30, which is housed in the accommodating part 31 and disposed on the substrate 100 vertically and horizontally, has a reflection shade 70 formed on the inner surface of the LED 30 by being inclined upwardly with silver and chrome plating. 일정두께를 갖도록 제조된 기판(100)에 복수 개가 종횡으로 배치된 LED(30)에 그 내면이 은과 크롬 도금 처리되어 상향 경사지게 성형된 반사부(200)가 기판(100)의 두께 범위내에서 형성된 것을 특징으로 하는 조명등.The reflector 200 formed in a slanted upward direction by silver and chromium plating on the LEDs 30 arranged in a plurality of longitudinally and horizontally on the substrate 100 manufactured to have a predetermined thickness is within the thickness range of the substrate 100. Illumination, characterized in that formed.
KR1020090015276A 2008-03-06 2009-02-24 Light by Pulse Width Modulation control KR20090096319A (en)

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