WO2016125922A1 - Dispositif d'éclairage à del - Google Patents

Dispositif d'éclairage à del Download PDF

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Publication number
WO2016125922A1
WO2016125922A1 PCT/KR2015/001069 KR2015001069W WO2016125922A1 WO 2016125922 A1 WO2016125922 A1 WO 2016125922A1 KR 2015001069 W KR2015001069 W KR 2015001069W WO 2016125922 A1 WO2016125922 A1 WO 2016125922A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
voltage
led lighting
led
flexible circuit
Prior art date
Application number
PCT/KR2015/001069
Other languages
English (en)
Korean (ko)
Inventor
박은숙
Original Assignee
박은숙
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박은숙 filed Critical 박은숙
Priority to PCT/KR2015/001069 priority Critical patent/WO2016125922A1/fr
Publication of WO2016125922A1 publication Critical patent/WO2016125922A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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

Definitions

  • the present invention relates to an LED lighting device, and more particularly, to attach a flexible printed circuit board (FPCB) in which a light emitting diode array (LED array) is disposed to a heat dissipation member having a circular or curved surface. It relates to an LED lighting device that can be irradiated in a radial form.
  • FPCB flexible printed circuit board
  • LED array light emitting diode array
  • a light emitting diode is a semiconductor device that emits light by flowing a current through a compound such as gallium arsenide.
  • a small number of carriers are injected using a p-n junction structure of a semiconductor and emit light by recombination thereof.
  • the LED has high efficiency of converting electric energy into light energy, which can save up to 90% of energy, and is attracting attention as a next-generation light source that can replace incandescent and fluorescent lamps with energy efficiency of only 5%.
  • the LED consists of a structure in which positive charge particles, called electrons and holes, combine at the center of the electrode to emit photons of light when an electric current passes through a conductive material attached to the upper and lower electrodes. Different.
  • White LEDs can be used as lighting fixtures and are used for lightings such as headlights of vehicles as well as indoor lighting.
  • the LED used for the headlights of the vehicle is arranged such that the light is directed forward or upward in the direction of travel of the vehicle.
  • the LED is attached to the heat dissipation member, and the heat dissipation member to which the LED is attached is installed on the lighting reflector of the vehicle.
  • the LED is attached to the upper end of the heat dissipation member to emit light upward or attached to the front end of the heat dissipation member to emit light forward.
  • the conventional heat dissipation member has a simple structure such that the LED is attached only to the upper end or the front end. In this case, the amount of light reflected by the LED light reflecting plate of the vehicle is low, the headlights are weak, and when a plurality of LEDs are used to make up for the problem, heat generation increases and there is a problem in that the headlights frequently fail.
  • the present invention was devised to solve the above problems, and an object of the present invention is to provide an LED lighting device that allows the headlights to be bright when manufacturing the headlights of the vehicle using the LEDs.
  • another object of the present invention is to provide an LED lighting device that can effectively release the heat generated by the plurality of LEDs when configuring the headlights of the vehicle using the plurality of LEDs.
  • the LED lighting apparatus is a support portion that is in close contact with the outer periphery of the light reflecting plate hole, a connection portion attached to the upper portion of the support portion is installed, the conductive wire is installed, the attachment portion extending to the connection portion and the stepped portion and the connection portion, A flexible printed circuit board including a plurality of light emitting diodes attached to the attachment portion is disposed, and a head portion extending from the attachment portion to a stepped portion of the attachment portion and forming a top portion.
  • the LED lighting apparatus includes a heat dissipation member having a circular or curved surface, and a flexible circuit board on which a plurality of light emitting diodes are disposed and attached to the circular or curved surface of the heat dissipating member.
  • the light generated from the plurality of LEDs disposed on the flexible printed circuit board is formed in all directions through a structure in which the flexible printed circuit board is wrapped and attached to a heat radiating member having a circular or curved surface. Radiating has the effect of being evenly reflected on the illumination reflector. As a result, the headlights of the vehicle are much brighter and more efficient than the conventional structure.
  • the LED is attached to the heat dissipation member having a circular or curved surface, the heat generated from the LED can be effectively released through the heat dissipation member.
  • FIG. 1 is a perspective view of a heat radiation member of the LED lighting apparatus according to the present invention.
  • Figure 2 is a side view and a bottom view of the heat dissipation member of the LED lighting apparatus according to the present invention.
  • FIG. 3 is a view showing a flexible circuit board of the LED lighting apparatus according to the present invention.
  • FIG. 4 is a perspective view of the LED lighting apparatus according to the present invention.
  • 1 and 2 show the heat radiation member of the LED lighting device.
  • the heat dissipation member is a structure for dissipating heat generated from the LED to the outside, and the LED is attached to the heat dissipation member, and the heat dissipation member having the LED is inserted into the hole of the lighting reflector.
  • the heat dissipation member may include a support part 1 and a support part 1 which are in close contact with the outer circumference of the hole of the light reflection plate when the heat dissipation part 9 is inserted into the hole of the light reflection plate (not shown).
  • a connecting portion 3 attached to the center portion, an attaching portion 5 extending with the connecting portion 3 and the step 15, and a head portion 7 extending with the attaching portion 5 and the step forming the uppermost portion.
  • a heat dissipation part 9 connected to the lower part of the support part 1 and inserted into the hole of the lighting reflecting plate.
  • the attaching part 5 is attached to the flexible printed circuit board 40 (see FIG. 3) having a plurality of LEDs disposed thereon, and to fix the flexible printed circuit board 40 wrapped and attached to the circumferential surface of the attaching part 5.
  • a coupling hole 13 into which a screw is inserted is formed at the upper end of the attachment portion 5.
  • connection part 3 is formed with a conductive wire hole 11 into which a conductive wire for supplying power to the flexible circuit board 40 is inserted.
  • the heat dissipation part 9 is formed in a structure having a large surface area so that heat generated from the LED can be effectively released.
  • a hole 17 is formed in the lower portion of the heat dissipation part 9 so that the conductive wire inserted through the conductive wire hole 11 of the connection part 3 can come out.
  • FIG. 3 illustrates a flexible circuit board attached to a heat dissipation member.
  • the flexible printed circuit board is a flexible printed circuit board (PCB), which is formed in a strip form so as to be wrapped and attached along the circumferential surface of the attachment portion 5 having a curved surface.
  • PCB flexible printed circuit board
  • Ground pads 26 corresponding to the ( ⁇ ) poles are formed on both ends of the flexible circuit board 40, and holes 24 are formed in the ground pads 26. This hole 24 corresponds to the engagement hole 13 of the attachment part 5.
  • Voltage supply pads 20 corresponding to the positive poles are formed under both ends of the flexible circuit board 40. Conductors are soldered to the voltage supply pad 20 to supply power to the flexible printed circuit board 40 through the conductors.
  • the flexible circuit board 40 has a circuit pattern 28 through which current flows, and a resistor 28 and an LED 30 are disposed on the circuit pattern 28.
  • the resistor 28 is made of a material such as carbon, silver, or copper, and is formed using a printing method or a plasma deposition method.
  • the LED 30 is disposed by mounting the LED chip on the circuit pattern 28 and then connecting the LED chip to the pads on the circuit pattern 28. And it is molded with a light transmitting material on the wired LED 30.
  • the light transmissive material includes a phosphor that converts the light color of the LED as an insulating material such as resin.
  • LEDs 30 are disposed on the flexible printed circuit board 40.
  • the four left LEDs and the four right LEDs are connected in series, and the left four series arrays and the right side are connected.
  • Four serial arrays are connected in parallel to each other.
  • 12V and 24V are used for the car voltage.
  • the number of LEDs used in the car depends on the car voltage. That is, the number of LEDs is determined such that the sum of the LED drop voltages is smaller than the vehicle voltage.
  • the resistance value can be determined according to the resistance drop voltage 1.5V and the LED current use.
  • the voltage of the battery (battery) is not constant and the voltage changes according to the amount of current contained therein. If the voltage drops below a certain amount, the battery will be adversely affected, and in extreme cases, the battery may not be used at all.
  • the battery has a full charge voltage and a discharge end voltage and is related to the life of the battery.
  • the battery voltage value commonly used in the vehicle is not important, but the actual full charge voltage value of the battery, the startable voltage value of the vehicle, and the end voltage value of the battery discharge are important.
  • the number n of LEDs arranged in series on the flexible circuit board 40 may be determined by the following Equation 1 in consideration of this point.
  • A is a voltage capable of starting the vehicle
  • B is a voltage of the fully charged state
  • Vf is a drop voltage of the light emitting diode
  • the value of A is greater than the discharge end voltage and less than the voltage of the fully charged state.
  • the car voltage is 12V
  • this is simply a common value, which is 14.4V of full charge voltage, 12.5V of startable voltage and 10.8V of discharge end voltage.
  • the LED's drop voltage is 2V to 3.6V.
  • Figure 4 shows an LED lighting apparatus according to the present invention.
  • the flexible circuit board 40 is wrapped and attached around the curved surface of the attachment portion 5 of the heat dissipation member, and the hole 24 and the attachment portion on the ground pad 26 of the flexible circuit board 40 are attached.
  • the coupling holes 13 in (5) coincide with each other so that the flexible circuit board 40 is fixed by inserting the screw 52 through the coupling hole 13 and the hole 24.
  • the conductive wire 50 is electrically connected to the voltage supply pad 20 of the flexible circuit board 40 by soldering 54, and the conductive wire 50 connected to the voltage supply pad 20 is connected to the connection portion 3.
  • soldering 54 Through the ball 11 of the connection into the interior of the connection portion 3 is exited through the hole 17 formed in the lower end of the support (9).
  • the ground pad 26 forms a ground and the voltage supply pad 20 forms a positive pole so that the terminal portion 56 of the conductive wire 50 exposed to the outside of the heat dissipation member is connected to the vehicle power source.
  • the LED lighting apparatus illustrated in FIG. 4 is inserted into and fixed in the hole of the lighting reflecting plate of the vehicle and used as the headlight, and the LED light is radiated in a radial direction based on the straight direction of the vehicle.
  • the present invention can be widely used in the field of LED lighting, and particularly useful in the headlight device of an automobile.

Abstract

La présente invention concerne un dispositif d'éclairage à DEL et, plus particulièrement, un dispositif d'éclairage à DEL capable de régler un angle de rayonnement d'une DEL par fixation d'une carte de circuit imprimé flexible (FPCB), dans laquelle un réseau de DEL est disposé, à un élément de rayonnement de chaleur possédant des surfaces circulaires ou incurvées. À cet effet, le dispositif d'éclairage à DEL selon la présente invention comprend : une partie de support qui entre en contact étroit avec la périphérie extérieure d'un trou de réflecteur d'éclairage ; une partie de branchement qui est fixée à une partie supérieure de la partie de support et dans laquelle un trou de fil est disposé ; une partie de fixation qui s'étend depuis la partie de branchement et qui présente un étage par rapport à la partie de branchement ; une FPCB dans laquelle une pluralité de DEL fixées à la partie de fixation est disposée ; et une partie tête qui s'étend depuis la partie de fixation, qui présente un étage par rapport à la partie de fixation et qui forme la partie supérieure.
PCT/KR2015/001069 2015-02-02 2015-02-02 Dispositif d'éclairage à del WO2016125922A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/001069 WO2016125922A1 (fr) 2015-02-02 2015-02-02 Dispositif d'éclairage à del

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/001069 WO2016125922A1 (fr) 2015-02-02 2015-02-02 Dispositif d'éclairage à del

Publications (1)

Publication Number Publication Date
WO2016125922A1 true WO2016125922A1 (fr) 2016-08-11

Family

ID=56564250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/001069 WO2016125922A1 (fr) 2015-02-02 2015-02-02 Dispositif d'éclairage à del

Country Status (1)

Country Link
WO (1) WO2016125922A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090114680A (ko) * 2008-04-30 2009-11-04 박내규 Ｌｅｄ 모듈 및 ｌｅｄ 모듈을 사용하여 조립된 ｌｅｄ램프
WO2012102589A2 (fr) * 2011-01-28 2012-08-02 Park Sang Suk Ampoule électrique à led
WO2013089521A1 (fr) * 2011-12-16 2013-06-20 삼성전자주식회사 Structure de dissipation de chaleur pour appareil d'éclairage et appareil d'éclairage
WO2014148805A1 (fr) * 2013-03-18 2014-09-25 Kim Young Wan Dispositif d'éclairage à del
US20140376248A1 (en) * 2012-03-12 2014-12-25 Icepipe Corporation Led lighting device and vehicle headlight having same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090114680A (ko) * 2008-04-30 2009-11-04 박내규 Ｌｅｄ 모듈 및 ｌｅｄ 모듈을 사용하여 조립된 ｌｅｄ램프
WO2012102589A2 (fr) * 2011-01-28 2012-08-02 Park Sang Suk Ampoule électrique à led
WO2013089521A1 (fr) * 2011-12-16 2013-06-20 삼성전자주식회사 Structure de dissipation de chaleur pour appareil d'éclairage et appareil d'éclairage
US20140376248A1 (en) * 2012-03-12 2014-12-25 Icepipe Corporation Led lighting device and vehicle headlight having same
WO2014148805A1 (fr) * 2013-03-18 2014-09-25 Kim Young Wan Dispositif d'éclairage à del

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