KR101742959B1 - Printed cicuit board for led illumination - Google Patents

Printed cicuit board for led illumination Download PDF

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Publication number
KR101742959B1
KR101742959B1 KR1020150133208A KR20150133208A KR101742959B1 KR 101742959 B1 KR101742959 B1 KR 101742959B1 KR 1020150133208 A KR1020150133208 A KR 1020150133208A KR 20150133208 A KR20150133208 A KR 20150133208A KR 101742959 B1 KR101742959 B1 KR 101742959B1
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KR
South Korea
Prior art keywords
substrate
line
power supply
terminal
leds
Prior art date
Application number
KR1020150133208A
Other languages
Korean (ko)
Other versions
KR20170034650A (en
Inventor
이동준
Original Assignee
(주) 성진일렉트론
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.)
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Publication date
Application filed by (주) 성진일렉트론 filed Critical (주) 성진일렉트론
Priority to KR1020150133208A priority Critical patent/KR101742959B1/en
Publication of KR20170034650A publication Critical patent/KR20170034650A/en
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Publication of KR101742959B1 publication Critical patent/KR101742959B1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/141—One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0215—Grounding of printed circuits by connection to external grounding means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10106—Light emitting diode [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10113—Lamp

Abstract

The present invention relates to a printed circuit board (PCB) for supplying electricity to LED lighting for surface lighting, comprising: a first substrate having at least one power supply and at least one ground; At least one second substrate having a first lead line connecting the LEDs in series and a second lead line connected to an outermost LED among the plurality of LEDs for illumination, And a connector for physically coupling the second board and electrically connecting one end of the first lead wire to the power supply unit and connecting one end of the second lead wire to the grounding unit do.

Description

{PRINTED CICUIT BOARD FOR LED ILLUMINATION}

The present invention relates to a printed circuit board (PCB) for supplying electricity to an LED lighting using a light emitting diode (LED).

2. Description of the Related Art A light emitting diode (hereinafter referred to as an LED) is an element that emits light when a voltage is applied, has a long life, low power consumption, and has a very fast reaction time. In addition, there is no flicker, no fluorescent harmful substances used in fluorescent lamps, and no ultraviolet rays. LEDs are used as display lights using low-power features, backlights for displays, and light sources for lighting fixtures. Particularly, when used as illumination, it is used as an environmentally friendly lighting device because it uses a small amount of power while obtaining sufficient illumination.

The illumination using the LEDs includes a printed circuit board that forms an electric circuit, a power supply unit that supplies power to the printed circuit board, a power supply unit that extends from a power supply unit to which the power supply (Vcc) of the printed circuit board is applied, A power supply line, a ground line formed separately from the power supply line and printed on the printed circuit board to be connected to the ground, and a plurality of LEDs mounted in series on the power supply line. The cathode of the last LED among the LEDs is connected to the ground line, and a circuit is formed in which the power supply line and the ground line are connected.

As shown in FIGS. 1 and 2, in order to arrange the LEDs 40 at regular intervals on a plane, a conventional printed circuit board for LED lighting uses a rectangular printed circuit board and a plurality of parallel lateral boards (20) is cut and used. (Two LED substrates can be fabricated by using lateral substrates to be obtained from a normal rectangular printed circuit board as shown in FIG. 2.) A power supply electrode and a ground electrode are formed on the vertical substrate 10, and a power supply A supply line 30 and a ground line 60 are formed. The cathode of the LED 40 and the anode of the LED 40 are connected and arranged in series on the power supply line 30 and the anode of the outermost LED 40 of the lateral substrate 20 is connected to the power source The cathode to the supply line 30 is connected to the ground line 60.

The power supply line 30 is provided with a power supply unit 50 to apply a voltage Vcc and the ground line 60 is grounded to zero the potential. The ground line 60 is printed so as to be in contact with all the outermost LEDs 40 of all the lateral substrates 20. [ 2, the length of the ground line 60 is very long and each of the lateral substrates 20 is connected in parallel with each other by the power supply unit 50, the power supply line 30 and the ground line 60 .

When the ground line 60 is formed as described above, since the ground line is grounded through all of the lateral substrates, the self-resistance of the ground line 60 is increased and the ground line 60 of each of the lateral substrates 20 is continuously connected The currents applied to the LEDs 40 of the respective lateral boards 20 may not be uniform, and thus the uniformity of the LED illumination may be reduced. In addition, since the ground line 60 is formed by printing the conductor metal on the lateral substrate 20, there is a problem that the conductor material forming the ground line 60 is consumed.

Further, since the vertical substrate 10 and the horizontal substrate 20 are integrally formed, it is difficult to change the standard or change the shape of the illumination, and when the PCB is defective during production / manufacture or maintenance / repair, There is a problem that the corresponding process is complicated and the cost is significantly increased when a defect occurs

Patent No. 10-1033008

In order to solve the above-described problems, the present invention provides an LED lighting device that can uniformly apply current to LEDs of respective lateral substrates by individually grounding the lateral substrates, minimize the length of the ground lines, And to provide a printed circuit board for LED illumination that can be improved.

In addition, since the transverse board is assembled to the transverse board using the connector, the size and shape of the transverse board and / or the transverse board can be changed in various sizes and shapes, It is a further object of the present invention to provide a printed circuit board capable of replacing a defective portion only when a defective portion of the printed circuit board is defective.

According to an aspect of the present invention, there is provided a light emitting diode (LED) comprising: a first substrate having at least one power supply unit and at least one grounding unit; a first lead line having a plurality of LEDs mounted thereon, At least one second substrate having a second lead line connected to an outermost LED among a plurality of LEDs for illumination; and a second substrate, physically coupling the first substrate and the second substrate, And a connector electrically connecting the power supply unit to the power supply unit and connecting one end of the second lead wire to the ground unit.

The connector has a first terminal and a second terminal, the first terminal electrically connecting the power supply unit and the first conductor line, and the second terminal electrically connecting the second conductor line and the ground unit Can be connected.

Wherein one end of each of the first lead line and the second lead line is connected to the first terminal and the second terminal so that the first terminal and the second terminal are connected to the first lead line and the second lead line, It is preferable to form socket-type female terminals each of which accommodates the above-mentioned means elements of the conductor line.

The second substrate may further include a connection line electrically connecting the second lead line and the outermost LED.

Preferably, the first lead wire comprises a plurality of segments, and each segment is connected by the LED.

The power supply unit and the ground unit may be provided on the first substrate by the number of the second substrates and two or more of the second substrates may be assembled on both sides of the first substrate.

As described above, according to the present invention, since the horizontal substrate and the vertical substrate are connected using the connector, each of the horizontal substrates can be independently connected to another horizontal substrate. When a constant voltage / current is applied to each of the horizontal substrates, The electric current supplied to each LED can be relatively constant since a DC electric field flows and the length of the ground line is short and the self resistance is reduced, so that the uniformity of illumination can be improved.

In addition, the manufacturing cost can be minimized by the shortened ground line, and the length and the length of the vertical substrate and / or the horizontal substrate can be changed to variously change the standard and the shape.

In addition, according to the present invention, since a plurality of vertical substrates and a plurality of lateral substrates are assembled and formed, when a defect occurs in a part, only a defective substrate can be replaced and it is not necessary to replace the entire printed circuit board. Therefore, defective processes are reduced and costs are significantly reduced There is an effect that can be.

1 is a view illustrating an example of a printed circuit board for an LED illumination according to the related art,
2 is a schematic view of a ground line of a printed circuit board for an LED illumination according to the related art,
3 is a view illustrating a state where a vertical substrate and a horizontal substrate are assembled in a printed circuit board for an LED illumination according to the present invention,
Fig. 4 is a view showing the vertical substrate and the connector of Fig. 3,
Figure 5 shows the lateral substrate of Figure 3,
6 is an enlarged view of a connection portion between a vertical substrate and a horizontal substrate of a printed circuit board for an LED illumination according to the present invention
Fig. 7 is a circuit diagram schematically showing Fig. 4,
8 is an enlarged view of a second end portion of a lateral substrate of a printed circuit board for an LED illumination according to the present invention, and
Fig. 9 is a circuit diagram schematically showing Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

And throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between. Furthermore, when a component is referred to as being "comprising" or "comprising", it is to be understood that this does not exclude other components, do.

3 to 5, the present embodiment includes a vertical substrate 110 as a first substrate having a plurality of power supply units 150 and a ground GND, a power supply line 130, A plurality of LEDs 140 connected in series by a power supply line 130 and a plurality of LEDs 140 connected to the power supply line 130, And a plurality of connectors 170 having cathodes and anodes respectively connected to the ground 150 and the ground GND and coupling the transverse substrate 120 to the vertical substrate 110.

In this specification, a portion where a lateral substrate 120 and a longitudinal substrate 110 are connected to each other is referred to as a first end and an opposite end of the lateral substrate 120 is referred to as a second end. 5, the first end 131 of the power supply line 130 also protrudes toward the connector 170 and is connected to the connector 170. The first end 161 of the ground line 160 is connected to the connector 170, Protrudes toward the connector 170 side and is connected to the connector 170.

The power supply lines 130 are printed on the lateral substrate 120 in a dotted line fashion, and the LEDs 140 are electrically connected to each other and connected in series. That is, in each segment of the power supply line 130, the first end side is connected to the cathode of the LED 140 and the second end side is connected to the anode of the LED 140. [ The outermost LED 141 electrically connects the power supply line 130 and the ground line 160.

FIG. 6 is an enlarged view of part A of FIG. 3, and FIG. 7 is a schematic view of the part A. As shown in FIGS. 6 and 7, when the vertical substrate 110 and the horizontal substrate 120 are assembled, The connector 170 is provided with a first terminal 172 connected to the power supply unit 150 and a second terminal 174 connected to the ground GND. The first end 131 of the power supply line 130 protrudes to connect to the first terminal 172 and the first end 161 of the ground line 160 protrudes to the second terminal 172 .

FIG. 8 is an enlarged view of portion B of FIG. 3, and FIG. 9 is a schematic view thereof. As shown in FIGS. 8 and 9, the second end of the power supply line 130 is connected to the outermost LED 141 and the cathode of the outermost LED 141 and the second end 162 of the ground line 160 are electrically connected by the connection line 132. [ Therefore, the potential at the cathode of the outermost LED becomes zero.

The electric field supplied from the power supply unit 150 is applied to the first terminal 172, the first end 131 of the power supply line 130, the respective segments of the power supply line 130, 140, the outermost LEDs 141 and the connection line 132, and the connection line 132 is connected to the second end 162 of the ground line 160, the ground line 160, The first end 161 of the ground line 160 and the second terminal 174 to be grounded.

The power supply unit 150 and the ground GND are provided on the vertical substrate 110 by the number of the horizontal substrates 120 and the plurality of horizontal substrates 120 are assembled to one side of the vertical substrate 110 in FIG. However, the present invention is not limited thereto, and two or more lateral substrates 120 may be assembled on both sides of the longitudinal substrate 110, and the shape and dimensions thereof may be variously modified.

The plurality of horizontal lines 120 may be connected to the vertical lines 110 and the horizontal lines 120 may be connected to both sides of the vertical lines 110, It is possible to manufacture various lights with easy change, and in case of failure, it is possible to cope with only replacement of defective part, so that productivity can be increased and production / manufacturing and maintenance / repair cost can be reduced.

In addition, since each of the lateral boards is individually grounded, the length of the grounding line 160 can be reduced to less than half the length of the conventional configuration, so that the consumption of the material of the board and the ground line conductor material can be significantly reduced. In addition, since a constant power source is supplied to the LEDs 140 of each of the transverse substrates 120 and the length of the LEDs 140 is less than that of the prior art, self-resistance of the lines themselves can be reduced, The roughness and uniformity can be improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be clear to those who have knowledge of.

110: vertical substrate 120: horizontal substrate
130: supply supply line 132: connection line
140: LED 141: Outermost LED
150: power supply unit 160: ground line
170: connector 172: first terminal
174: Second terminal GND: Ground

Claims (7)

A first substrate having at least one power supply and at least one ground,
At least one second substrate on which a plurality of LEDs for illumination are mounted, a first lead line connecting the LEDs in series, and a second lead line connected to an outermost LED among the plurality of LEDs for illumination,
And a connector for physically coupling the first substrate and the second substrate, electrically connecting one end of the first lead line to the power supply unit, and connecting one end of the second lead line to the grounding unit ,
Wherein the first lead line is printed on the second substrate in a dotted line shape comprising a plurality of segments and the LEDs serially connect between the printed dotted segments,
And the second conductive line is formed on the second substrate in parallel with the first conductive line
Printed circuit board for LED lighting.
The method according to claim 1,
The connector having a first terminal and a second terminal,
Wherein the first terminal electrically connects the power supply unit and the first lead line,
And the second terminal electrically connects the second conductive line to the ground
Printed circuit board for LED lighting.
The method of claim 2,
Wherein one end of each of the first lead line and the second lead line has a connecting portion protruding from the first terminal and the second terminal,
Wherein the first terminal and the second terminal form a socket-type female terminal that accommodates the first conductor line and the second conductor line, respectively,
Printed circuit board for LED lighting.
The method of claim 3,
And the second substrate further comprises a connection line for electrically connecting the second lead line and the outermost LED
Printed circuit board for LED lighting.
delete The method according to any one of claims 1 to 4,
Wherein the power supply unit and the ground unit are provided on the first substrate by the number of the second substrates.
The method of claim 6,
Wherein at least two of the second substrates are assembled on both sides of the first substrate.
KR1020150133208A 2015-09-21 2015-09-21 Printed cicuit board for led illumination KR101742959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150133208A KR101742959B1 (en) 2015-09-21 2015-09-21 Printed cicuit board for led illumination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150133208A KR101742959B1 (en) 2015-09-21 2015-09-21 Printed cicuit board for led illumination

Publications (2)

Publication Number Publication Date
KR20170034650A KR20170034650A (en) 2017-03-29
KR101742959B1 true KR101742959B1 (en) 2017-06-05

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KR200493649Y1 (en) 2019-05-02 2021-05-10 주식회사 세지 Connector for bar type LED lamp connection

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KR101033008B1 (en) 2010-08-03 2011-05-09 한빔 주식회사 Printed-circuit board assembly for led plane-light and printed-circuit board assembly making method thereof

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