KR101238416B1 - Light emmiting diode module - Google Patents

Light emmiting diode module Download PDF

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Publication number
KR101238416B1
KR101238416B1 KR1020100123675A KR20100123675A KR101238416B1 KR 101238416 B1 KR101238416 B1 KR 101238416B1 KR 1020100123675 A KR1020100123675 A KR 1020100123675A KR 20100123675 A KR20100123675 A KR 20100123675A KR 101238416 B1 KR101238416 B1 KR 101238416B1
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South Korea
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printed circuit
circuit board
hole
lead pin
pad
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KR1020100123675A
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Korean (ko)
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KR20120062418A (en
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임정혁
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엘이디라이텍(주)
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238Arrangement or mounting of circuit elements integrated in the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015Fastening arrangements intended to retain light sources
    • F21V19/0025Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10Details of semiconductor or other solid state devices to be connected
    • H01L2924/11Device type
    • H01L2924/12Passive devices, e.g. 2 terminal devices
    • H01L2924/1204Optical Diode
    • H01L2924/12041LED
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10106Light emitting diode [LED]

Abstract

본 발명은 LED모듈에 관한 것으로서, 다수의 전극 패드가 형성되고 상기 각 전극 패드와 연결된 회로패턴이 인쇄 형성된 인쇄회로기판과, 상기 전극 패드에 단자들이 접합 되어 상기 인쇄회로기판상에 실장되는 LED칩과, 상기 회로패턴과 연결되고 상기 인쇄회로기판의 상하를 관통하는 스루홀의 가장자리에 형성된 용융 패드와, 상기 LED칩에 전원을 공급하도록 외부전원과 연결되고 상기 스루홀에 삽입되며 상기 용융 패드와 용융 접합에 의해 상기 스루홀에 고정되어 상기 인쇄회로기판상에 실장 되는 리드핀이 마련된 커넥터를 구비한다.
본 발명에 따른 LED모듈에 의하면 전원 공급용 커넥터를 인쇄회로기판에 고정하기 위해 리드핀을 인쇄회로기판의 저면에서 납땜고정하고 인쇄회로기판의 저면으로 돌출된 리드핀의 하부를 제거하는 공정이 생략됨으로써 제조 시간 및 비용을 절감할 수 있는 장점이 있다.
The present invention relates to an LED module, comprising: a printed circuit board having a plurality of electrode pads formed thereon and printed circuit patterns connected to the electrode pads; and an LED chip mounted on the printed circuit board by bonding terminals to the electrode pads. And a melting pad formed at an edge of a through hole connected to the circuit pattern and penetrating through the top and bottom of the printed circuit board, and connected to an external power source to be supplied with power to the LED chip and inserted into the through hole to melt the melt pad. And a connector provided with a lead pin fixed to the through hole by bonding and mounted on the printed circuit board.
According to the LED module according to the present invention, in order to fix the power supply connector to the printed circuit board, the solder pin is fixed on the bottom of the printed circuit board and the process of removing the lower part of the lead pin protruding to the bottom of the printed circuit board is omitted. This has the advantage of reducing manufacturing time and costs.

Description

LED모듈{Light emmiting diode module}LED module {Light emmiting diode module}

본 발명은 LED모듈에 관한 것으로 외부로부터 전원을 공급받아 기판상에 실장된 전기부품에 전원을 공급되게 하는 커넥터가 인쇄회로기판에 실장된 구조를 갖는 LED모듈에 관한 것이다.The present invention relates to an LED module having a structure in which a connector is mounted on a printed circuit board so that power is supplied to an electric component mounted on a substrate by receiving power from the outside.

인쇄회로기판에는 각종 전기부품들이 설치되는데 대표적인 예로는 조명을 위한 LED램프의 리드 프레임을 인쇄회로기판의 상하를 관통하는 스루홀에 삽입하고 기판의 저면에서 리드핀을 납땜하여 설치하거나, LED칩들을 인쇄회로기판의 표면상에 실장하는 것이 일반적이다.Various electrical components are installed on the printed circuit board. For example, a lead frame of an LED lamp for lighting is inserted into a through hole penetrating the top and bottom of the printed circuit board, and soldered lead pins are installed on the bottom surface of the printed circuit board. It is common to mount on the surface of a printed circuit board.

이러한 인쇄회로기판에는 LED칩 또는 LED램프를 포함한 각종 전기부품들에 전원을 공급하거나 다른 전기부품들과의 연결을 위한 커넥터가 설치된다.The printed circuit board is provided with a connector for supplying power to various electrical components including LED chips or LED lamps or for connecting to other electrical components.

이러한 커넥터는 암커넥터와 수커넥터로 구분되며, 암커넥터와 수커넥터는 서로 대응되는 것으로 일반적으로 수커넥터가 암커넥터에 삽입결합되고, 암커넥터가 인쇄회로기판상에 설치된다. 암커넥터에는 인쇄회로기판상의 전극패턴에 전기접속되는 각각의 단자핀이 형성되어 있으며 단자핀의 일부는 암커넥터의 하우징 내부에 절곡된 상태로 내장되어 있고 나머지 일부는 하우징의 외부로 돌출되어 인쇄회로기판에 마련된 스루홀에 삽입된다. 스루홀에 삽입된 단자핀은 인쇄회로기판의 저면에서 납땜을 통해 고정되며 인쇄회로기판의 저면으로 돌출되는 부분은 제거된다.Such a connector is divided into a female connector and a male connector, and the female connector and the male connector correspond to each other. In general, the male connector is inserted and coupled to the female connector, and the female connector is installed on the printed circuit board. The female connector has respective terminal pins electrically connected to the electrode patterns on the printed circuit board. Some of the terminal pins are bent inside the housing of the female connector, and some of the terminal pins are protruded out of the housing to protrude the printed circuit. It is inserted into the through hole provided in the board | substrate. The terminal pin inserted into the through hole is fixed by soldering at the bottom of the printed circuit board, and the portion protruding to the bottom of the printed circuit board is removed.

이와 같이 인쇄회로기판상에 각종 전기부품을 실장하고 전원 커넥터를 설치하는 과정에는 커넥터의 단자핀을 납땜 이음하는 공정과, 각종 전기부품들을 기판의 표면에 실장시키는 공정을 거쳐야 하므로 하나의 모듈을 제작하는데 서로 다른 공정이 요구된다. 즉, 모듈의 제조과정이 복잡해지고 각각의 공정에 필요한 장비들 또한 별도로 구비되어야 하므로 모듈의 제조 단가가 증가하는 문제점이 있다.As described above, in the process of mounting various electrical components on the printed circuit board and installing the power connector, a process of soldering and connecting terminal pins of the connector and mounting of various electrical components on the surface of the board must be performed. Different processes are required to do this. That is, since the manufacturing process of the module is complicated and the equipment necessary for each process must be provided separately, the manufacturing cost of the module increases.

상기와 같은 문제점을 해결하기 위한 것으로, 인쇄회로기판에 커넥터를 설치하는데 인쇄회로기판의 저면에서 커넥터의 리드핀을 납땜 이음하는 과정과 인쇄회로기판 저면으로 돌출된 리드핀의 하단을 제거하는 공정을 생략하여 모듈의 제작 시간 및 복잡성을 줄일 수 있는 LED모듈을 제공하는 데 그 목적이 있다.In order to solve the above problems, there is a process of installing a connector on a printed circuit board, the solder joint of the lead pin of the connector at the bottom of the printed circuit board and the process of removing the bottom of the lead pin protruding to the bottom of the printed circuit board The purpose is to provide an LED module that can be omitted to reduce the production time and complexity of the module.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 LED모듈은 다수의 전극 패드가 형성되고 상기 각 전극 패드와 연결된 회로패턴이 인쇄 형성된 인쇄회로기판과, 상기 전극 패드에 단자들이 접합 되어 상기 인쇄회로기판상에 실장되는 LED칩과, 상기 회로패턴과 연결되고 상기 인쇄회로기판의 상하를 관통하는 스루홀의 가장자리에 형성된 용융 패드와, 상기 LED칩에 전원을 공급하도록 외부전원과 연결되고 상기 스루홀에 삽입되며 상기 용융 패드와 용융 접합에 의해 상기 스루홀에 고정되어 상기 인쇄회로기판상에 실장 되는 리드핀이 마련된 커넥터를 구비한다.LED module according to the present invention for achieving the above object is a printed circuit board is formed with a plurality of electrode pads and the printed circuit pattern connected to each electrode pad, the terminals are bonded to the electrode pad and the printed circuit board An LED chip mounted on the substrate, a melting pad formed at an edge of a through hole connected to the circuit pattern and penetrating the top and bottom of the printed circuit board, and connected to an external power source to supply power to the LED chip and inserted into the through hole And a connector provided with lead pins fixed to the through holes by melt bonding and mounted on the printed circuit board.

상기 용융 패드는 상기 인쇄회로기판의 상면으로부터 스루홀의 내측면까지 확장 형성된다.The melt pad extends from an upper surface of the printed circuit board to an inner surface of the through hole.

상기 리드핀에는 상기 스루홀에 삽입되는 깊이를 제한하는 스토퍼가 형성된다.The lead pin is formed with a stopper for limiting the depth to be inserted into the through hole.

상기 스토퍼는 상기 용융 패드와 용융 접합 될 수 있게 납과 주석, 은, 구리, 인, 금, 니켈 중 적어도 하나 이상이 혼합된 합금으로 이루어진다.The stopper is made of an alloy in which at least one or more of lead, tin, silver, copper, phosphorus, gold, and nickel are mixed to be fusion-bonded with the melt pad.

본 발명에 따른 LED모듈에 의하면 전원 커넥터를 인쇄회로기판에 고정하기 위해 리드핀을 인쇄회로기판의 저면에서 납땜고정하고 인쇄회로기판의 저면으로 돌출된 리드핀의 하부를 제거하는 공정이 생략됨으로써 제조 시간 및 비용을 절감할 수 있는 장점이 있다.The LED module according to the present invention is manufactured by eliminating the process of fixing the lead pins on the bottom of the printed circuit board to fix the power connector to the printed circuit board and removing the lower part of the lead pin protruding to the bottom of the printed circuit board. This has the advantage of saving time and money.

도 1은 본 발명에 따른 LED모듈의 제1실시 예를 나타낸 부분 분리 사시도이고,
도 2는 도 1에 도시된 LED모듈의 단면도이며,
도 3은 본 발명에 따른 LED모듈의 제2실시 예를 나타낸 단면도이고,
도 4는 본 발명에 다른 LED모듈의 제3실시 예를 나타낸 단면도이다.
1 is a partially separated perspective view showing a first embodiment of an LED module according to the present invention;
2 is a cross-sectional view of the LED module shown in FIG.
3 is a cross-sectional view showing a second embodiment of the LED module according to the present invention;
4 is a cross-sectional view showing a third embodiment of the LED module according to the present invention.

이하 첨부된 도면을 참조하면서, 본 발명의 바람직한 실시 예에 따른 LED모듈에 대하여 더욱 자세하게 설명한다.Hereinafter, with reference to the accompanying drawings, it will be described in more detail with respect to the LED module according to an embodiment of the present invention.

도 1에는 본 발명에 따른 LED모듈이 도시되어 있다.1 shows an LED module according to the present invention.

도 1을 참조하면 LED모듈은 인쇄회로기판(100)과, LED칩(200)과, 용융 패드(300)와, 소켓형 커넥터(400)를 구비한다.Referring to FIG. 1, the LED module includes a printed circuit board 100, an LED chip 200, a melting pad 300, and a socket type connector 400.

인쇄회로기판(100)의 상면(100a)에는 도전성 물질로 이루어지고, 소정의 패턴을 가지며, LED칩(200)의 전극 단자(210)들과 용융 접합 되는 전극 패드들이 다수 마련되며, 각 전극 패드에 연결되어 전기신호를 전달하는 회로패턴이 형성되어 있다. 그리고, 인쇄회로기판(100)의 상면(100a) 일 측에는 상하를 관통하는 스루홀(130)이 마련되고, 스루홀(130)의 가장자리를 감싸는 방향으로 형성된 용융 패드(300)가 마련되어 있다.The upper surface 100a of the printed circuit board 100 is made of a conductive material, has a predetermined pattern, and is provided with a plurality of electrode pads that are melt-bonded with the electrode terminals 210 of the LED chip 200, and each electrode pad is provided. A circuit pattern is formed which is connected to and transmits an electric signal. In addition, a through hole 130 penetrating up and down is provided at one side of the upper surface 100a of the printed circuit board 100, and a melting pad 300 is formed in a direction surrounding the edge of the through hole 130.

용융 패드(300)는 후술 되는 소켓형 커넥터(400)의 리드핀(410)과 용융 접합 되어 소켓형 커넥터(400)를 인쇄회로기판(100)상에 실장시키기 위한 것으로, 전기전도성을 갖는 금속 소재로 형성되고, 도 1에 도시된 바와 같이 인쇄회로기판(100)의 스루홀(130)을 감싸는 형상으로 스루홀(130)의 가장자리 부분을 따라 인쇄회로기판(100)의 상면(100a)에 적층 또는 코팅형성된다. The melt pad 300 is melt-bonded with the lead pins 410 of the socket-type connector 400 to be described later to mount the socket-type connector 400 on the printed circuit board 100, and has a metal material having electrical conductivity. 1 and stacked on the upper surface 100a of the printed circuit board 100 along the edge of the through hole 130 in a shape surrounding the through hole 130 of the printed circuit board 100 as illustrated in FIG. 1. Or a coating is formed.

용융 패드(300)는 금속 상호간을 이음 결합시키는데 사용되는 땜납으로 융점이 비교적 낮은 납-주석계 합금의 연랍(soft solder) 또는 연랍에 비하여 녹는점이 높고 충격에 견디는 힘이 강한 구리-아연 합금인 황동납, 금-은-구리의 3가지 원소들이 혼합된 합금인 금랍, 구리-은 합금 또는 이것에 아연·주석·카드뮴 등을 첨가한 은랍을 포함하는 경랍(hard solder) 등을 적용할 수 있다.The melt pad 300 is a solder used to jointly join metals, and is a brass or a copper-zinc alloy having a higher melting point and higher impact resistance than a soft solder or a wax of a lead-tin alloy having a relatively low melting point. Gold and silver-copper alloys containing three elements of lead and gold-silver-copper, or hard solders including zinc, tin, cadmium, and silver wax may be used.

인쇄회로기판(100)에는 LED칩(200)에 전원을 공급하도록 스루홀(130)에 삽입된 상태에서 용융 패드(300)와 용융 접합 되어 회로패턴에 전기신호를 전달하기 위한 리드핀(410)이 마련된 소켓형 커넥터(400)가 설치된다.The lead pin 410 is melt-bonded with the melt pad 300 in the state of being inserted into the through hole 130 to supply power to the LED chip 200 in the printed circuit board 100 to transmit an electrical signal to the circuit pattern. The provided socket type connector 400 is installed.

도면에 도시되어 있지 않지만, 인쇄회로기판(100)의 타 측에는 다수의 인쇄회로기판(100)을 연결하여 사용할 수 있게 일 측에 설치되는 소켓형 커넥터(400)와 끼움 접속되는 플러그형 커넥터(500)를 인쇄회로기판(100)상에 설치할 수도 있다.Although not shown in the drawings, the other side of the printed circuit board 100, the plug-type connector 500 is fitted and connected to the socket-type connector 400 is installed on one side to connect and use a plurality of printed circuit board 100 ) May be installed on the printed circuit board 100.

소켓형 커넥터(400)는 다수의 제1접속핀(미도시)들이 마련된 플러그형 커넥터(500)가 끼워지는 것으로 다수의 제1접속핀들과 각각 접촉되는 제2접속핀(430)들과, 제2접속핀(430)들을 지지하는 소켓하우징(420)을 포함하고, 각 제2접속핀(430)들과 연결되고 하우징(420)의 하방으로 연장되며 인쇄회로기판(100)에 마련된 스루홀(130)에 삽입되어 회로패턴으로 전원이 공급되게 용융 패드(300)와 접합 되는 리드핀(410)을 포함하여 이루어진다.The socket-type connector 400 may include plug-type connectors 500 having a plurality of first connection pins (not shown), and second connection pins 430 respectively contacting the plurality of first connection pins. A through hole provided in the printed circuit board 100 includes a socket housing 420 supporting the two connecting pins 430, and is connected to each of the second connecting pins 430 and extends below the housing 420. It includes a lead pin 410 is inserted into the 130 and bonded to the melting pad 300 to supply power to the circuit pattern.

본 실시 예에서는 2개의 제1접속핀을 갖는 플러그형 커넥터(500)와 끼움 결합될 수 있게 2개의 제2접속핀(430)을 갖는 소켓형 커넥터(400)가 적용되었지만, 이와는 다르게 다수의 제1접속핀들과 제2접속핀(430)들을 갖는 구조의 것이 적용될 수도 있다. 이 경우, 인쇄회로기판(100)에는 제2접속핀(430)의 개수에 대응되는 개수의 스루홀(130)이 마련된 것이 적용된다.In the present exemplary embodiment, although the socket-type connector 400 having two second connection pins 430 may be fitted to be fitted with the plug-type connector 500 having two first connection pins, a plurality of second connection pins may be used. A structure having one connecting pins and second connecting pins 430 may be applied. In this case, the number of through holes 130 corresponding to the number of the second connection pins 430 is provided to the printed circuit board 100.

소켓형 커넥터(400)의 리드핀(410)은 인쇄회로기판(100)에 마련된 스루홀(130)에 삽입된 상태에서 용융 패드(300)와 용융 접합 되되 리드핀(410)의 하부(410b)가 인쇄회로기판(100)의 저면으로 노출되지 않게 스루홀(130)에 소정의 깊이로 삽입된다. 여기서 리드핀(410)은 도시된 바와 같이 단면형상이 사각형으로 형성될 수도 있고, 다각 또는 원형으로 형성될 수도 있다. The lead pin 410 of the socket-type connector 400 is melt-bonded with the melt pad 300 in a state of being inserted into the through hole 130 provided in the printed circuit board 100, but the lower portion 410b of the lead pin 410. Is inserted into the through hole 130 at a predetermined depth so as not to be exposed to the bottom surface of the printed circuit board 100. Here, the lead pin 410 may be formed in a cross-sectional shape as shown in the rectangle, or may be formed in a polygonal or circular shape.

리드핀(410)의 외주면에는 스루홀(130)에 삽입되는 깊이를 제한하여 리드핀(410)의 하부(410b)가 인쇄회로기판(100)의 저면(100b) 보다 돌출되지 않게 리드핀(410)의 하단으로부터 상방으로 소정거리 이격된 위치에 스토퍼(411)가 형성되며, 리드핀(410)의 하단과 스토퍼(411) 사이의 거리는 스루홀(130)의 깊이보다 작거나 동일한 길이로 형성시키는 것이 바람직하다.On the outer circumferential surface of the lead pin 410, the depth of the lead pin 410 is limited so that the lower pin 410b of the lead pin 410 does not protrude from the bottom surface 100b of the printed circuit board 100. The stopper 411 is formed at a position spaced apart from the lower end of the upper predetermined distance, and the distance between the lower end of the lead pin 410 and the stopper 411 is formed to be less than or equal to the depth of the through hole 130 It is preferable.

스토퍼(411)는 용융 패드(300)의 융점보다 높은 융점을 갖는 재질로 형성시킬 수도 있고 이와는 다르게 용융 패드(300)의 융점과 동일한 온도에서 용융될 수 있게 용융 패드(300)와 동일한 물질 및 성분비를 갖는 합금으로 형성될 수도 있다.The stopper 411 may be formed of a material having a melting point higher than the melting point of the melting pad 300. Alternatively, the stopper 411 may be melted at the same temperature as the melting point of the melting pad 300. It may be formed of an alloy having a.

이와는 다르게 스루홀(130)에 삽입되는 깊이를 제한하도록 리드핀(410)의 상부(410a)를 스루홀(130)의 직경보다 크게 형성시키고 하부(410b)를 스루홀(130)의 직경과 동일하거나 더 작은 직경을 갖도록 형성시킬 수도 있다.Alternatively, the upper portion 410a of the lead pin 410 is formed larger than the diameter of the through hole 130 and the lower portion 410b is equal to the diameter of the through hole 130 so as to limit the depth inserted into the through hole 130. Or to have a smaller diameter.

이러한 리드핀(410)의 구조는 단이 형성된 구조로 리드핀(410)을 스루홀(130)에 삽입된 상태로 지지되게 하는 별도의 지지구를 생략할 수 있다.The structure of the lead pin 410 is a step formed structure may omit a separate support for supporting the lead pin 410 is inserted into the through hole 130 in a state.

이를 위해 리드핀(410)의 하부(410b)는 인쇄회로기판(100)의 상하폭보다 작거나 동일한 길이로 형성시키는 것이 바람직하다.To this end, the lower portion 410b of the lead pin 410 is preferably formed to have a length less than or equal to the upper and lower widths of the printed circuit board 100.

한편, 도 2에 도시된 바와 같이 인쇄회로기판(100)에는 스루홀(130)의 가장자리로부터 스루홀(130)의 내측면까지 연장되는 용융 패드(300)를 형성시킬 수 있다. 이러한 구조의 용융 패드(300)가 마련된 스루홀(130)에 리드핀(410)이 삽입되면 리드핀(410)의 상부(410a) 하단은 인쇄회로기판(100)의 상면에 형성된 용융 패드(300)와 접촉되고, 하부(410b) 외주면은 스루홀(130)의 내측면에 형성된 용융 패드(300)와 접촉되거나 미세한 간격으로 이격된다. Meanwhile, as illustrated in FIG. 2, the printed circuit board 100 may include a melting pad 300 extending from an edge of the through hole 130 to an inner side surface of the through hole 130. When the lead pin 410 is inserted into the through hole 130 in which the melt pad 300 of the structure is provided, the lower end of the upper portion 410a of the lead pin 410 is formed on the upper surface of the printed circuit board 100. ) And the outer circumferential surface of the lower portion 410b are in contact with the melt pad 300 formed on the inner surface of the through hole 130 or spaced apart at minute intervals.

이상 설명한 바와 같은 본 발명에 따른 LED모듈에 의하면 커넥터를 인쇄회로기판(100)에 고정하기 위해 리드핀(410)을 인쇄회로기판(100)의 저면에서 납땜하고 인쇄회로기판(100)의 저면으로 돌출된 리드핀(410)의 하부(410b)를 제거하는 공정이 생략됨으로써 제조 시간 및 비용을 절감할 수 있는 장점이 있다.According to the LED module according to the present invention as described above, in order to fix the connector to the printed circuit board 100, the lead pin 410 is soldered on the bottom of the printed circuit board 100 and the bottom surface of the printed circuit board 100 Since the process of removing the lower portion 410b of the protruding lead pin 410 is omitted, manufacturing time and cost can be reduced.

100 : 인쇄회로기판 110 : 전극패드
120 : 회로패턴 130 : 스루홀
200 : LED칩 300 : 용융패드
400 : 소켓형 커넥터 410 : 리드핀
411 : 스토퍼 420 : 하우징
430 : 제2접속핀 500 : 플러그형 커넥터
100: printed circuit board 110: electrode pad
120: circuit pattern 130: through hole
200: LED chip 300: melting pad
400: socket type connector 410: lead pin
411: stopper 420: housing
430: second connection pin 500: plug type connector

Claims (4)

다수의 전극 패드가 형성되고 상기 각 전극 패드와 연결된 회로패턴이 인쇄 형성된 인쇄회로기판과;
상기 전극 패드에 단자들이 접합 되어 상기 인쇄회로기판상에 실장되는 LED칩과;
상기 회로패턴과 연결되고 상기 인쇄회로기판의 상하를 관통하는 스루홀의 가장자리에 형성된 용융 패드와;
상기 LED칩에 전원을 공급하도록 외부전원과 연결되고 상기 스루홀에 삽입되며 상기 용융 패드와 용융 접합에 의해 상기 스루홀에 고정되어 상기 인쇄회로기판상에 실장 되는 리드핀이 마련된 커넥터를; 구비하고,
상기 리드핀에는 상기 스루홀에 삽입되는 깊이를 제한하며 상기 용융 패드와 용융 접합되는 스토퍼가 형성된 것을 특징으로 하는 LED모듈.
A printed circuit board having a plurality of electrode pads formed thereon and printed circuit patterns connected to the electrode pads;
An LED chip bonded to the electrode pads and mounted on the printed circuit board;
A melting pad connected to the circuit pattern and formed at an edge of a through hole penetrating through the printed circuit board;
A connector having a lead pin connected to an external power source for supplying power to the LED chip and inserted into the through hole and fixed to the through hole by melting bonding with the melting pad and mounted on the printed circuit board; Respectively,
The lead pin is limited to the depth that is inserted into the through hole and the LED module, characterized in that the stopper is formed to be melt-bonded with the melting pad.
삭제delete 삭제delete 삭제delete
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Publication number Priority date Publication date Assignee Title
JP2002175022A (en) * 2000-12-06 2002-06-21 Stanley Electric Co Ltd Led display unit
JP2010147037A (en) * 2008-12-16 2010-07-01 Hitachi Ltd Bonding structure of electric/electronic components and printed circuit board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002175022A (en) * 2000-12-06 2002-06-21 Stanley Electric Co Ltd Led display unit
JP2010147037A (en) * 2008-12-16 2010-07-01 Hitachi Ltd Bonding structure of electric/electronic components and printed circuit board

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