KR20110077247A - Illuminating device using light emitting diode which is convenient of power connection - Google Patents

Illuminating device using light emitting diode which is convenient of power connection Download PDF

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Publication number
KR20110077247A
KR20110077247A KR1020090133760A KR20090133760A KR20110077247A KR 20110077247 A KR20110077247 A KR 20110077247A KR 1020090133760 A KR1020090133760 A KR 1020090133760A KR 20090133760 A KR20090133760 A KR 20090133760A KR 20110077247 A KR20110077247 A KR 20110077247A
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KR
South Korea
Prior art keywords
substrates
power
led
light source
power line
Prior art date
Application number
KR1020090133760A
Other languages
Korean (ko)
Inventor
금병태
Original Assignee
금병태
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 금병태 filed Critical 금병태
Priority to KR1020090133760A priority Critical patent/KR20110077247A/en
Publication of KR20110077247A publication Critical patent/KR20110077247A/en

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    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • 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
    • 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
    • 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
    • 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
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
    • 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

Abstract

The present invention discloses an LED lighting device equipped with a plurality of substrates. In the LED lighting apparatus according to the embodiment of the present invention, a plurality of substrates on which the LED light source is mounted is mounted on the body in a state where a power line is inserted into the body, and each terminal formed on the power line and the plurality of substrates is provided with a screw or the like. Electrically connect using the power connection means.

According to the present invention, even when a plurality of substrates are mounted on the body, since the terminals of each board are directly connected to the power line, the LED light source is damaged due to the high power near the power input terminal as in the prior art, or the resistance heating of the circuit pattern is greatly reduced. As a result, the service life of the LED lighting device can be maximized. In addition, the work is very simple and convenient because the power is connected by simply fastening only the power connection means to the corresponding position. Therefore, even beginners can work as much as possible, which can greatly reduce labor costs, greatly improve work speed, and simplify maintenance work.

Description

LED lighting device that is convenient for power connection}

The present invention relates to an LED lighting device such as a LED (Light Emitting Diode) fluorescent lamp, and more particularly, to an LED lighting device that can easily implement a power connection for a plurality of substrates.

LED is a semiconductor having a PN junction structure and is a light emitting device that converts electrical energy into light energy by recombination of minority carriers.

These LEDs consume less power, have higher energy efficiency, and have a longer lifespan than conventional fluorescent lamps or incandescent lamps. Therefore, their use range is rapidly expanding, especially for indoor and outdoor lighting devices or automobile lighting devices. .

1 and 2 are a plan view and a partial cross-sectional view illustrating a conventional LED fluorescent lamp 10, respectively. Accordingly, the conventional LED fluorescent lamp 10 has a plurality of substrates (30a, 30b, 30c) is mounted in a line in the longitudinal direction on one surface of the body 20, a plurality of LEDs on each substrate (30a, 30b, 30c) The light source 32 is arranged. The one surface of the body 20 may be equipped with a transparent or translucent cover (not shown) to protect the LED light source (32).

The LED light source 32 may be an LED chip directly mounted on each of the substrates 30a, 30b, and 30c by wire bonding, or may be an LED package in which the LED chip is mounted on a separate substrate.

Although not shown, circuit patterns electrically connected to the respective LED light sources 32 are formed on the surfaces of the substrates 30a, 30b, and 30c, and are connected to the circuit patterns near ends of the substrates 30a, 30b, and 30c. Terminals are formed.

Therefore, each LED light source 32 is electrically connected to the power supply line 40 through the circuit pattern and the terminal.

Meanwhile, as illustrated in the case where a plurality of substrates 30a, 30b and 30c are mounted on the body 10, the solder 50 is electrically connected to the adjacent substrates 30a, 30b and 30c using the solder 50. That is, for example, the terminals of the first substrate 30a are directly connected to the power supply line 40, and the remaining substrates are connected to the terminals of the substrate adjacent to the terminals thereof with the solder 50.

However, such a conventional power connection method has some problems as follows.

First, since the circuit patterns formed on the substrates 30a, 30b, and 30c are very thin copper foils, they have a relatively large resistance value compared to copper wires. When the circuit patterns are continuously connected, the resistance values rapidly increase.

That is, the more the substrate is connected, the greater the resistance value, so that the LED light source 32 near the power input terminal is more likely to be damaged due to high power, and the overall heat dissipation efficiency is greatly reduced due to the resistive heating of the circuit pattern itself. This phenomenon eventually results in greatly shortening the service life of the LED fluorescent lamp 32.

Second, a DC converter (not shown) is installed at one end of the LED fluorescent light 10. In order to increase power efficiency, the electrical connection pattern of the plurality of LED light sources 32 mounted on each board must be suitable for the rated output of the DC converter. do. However, in the conventional method, there is no way to adjust the connection pattern of the LED light source 32 to match the output power of the DC converter, the electrical converter pattern of the LED light source 32, so each time using a different substrate, the DC converter must also be changed accordingly so small quantity In the case of producing the product, there is an inevitable problem of an increase in the production cost.

Third, conventionally, the solder 50 must be applied to each connection portion of the plurality of substrates 30a, 30b, and 30c. Since the soldering work requires highly skilled personnel, the production cost increases due to the high labor cost, and the work failure or the LED The risk of damage to the light source 32 is high. In addition, there is a problem in that maintenance is inconvenient because the solder must be removed to replace the defective substrate.

The above-mentioned problems are not limited to the LED fluorescent lamp 10, and also in other types of LED lighting devices (side lights, security lights, lighting lights, etc.) that connect the terminals of each board with solder when electrically connecting a plurality of substrates. It is emerging as a challenge to be solved.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a LED lighting device capable of maximizing the service life by preventing damage to the LED light source and reducing heat by improving the power connection structure.

It is also an object of the present invention to provide an LED lighting device that can adjust the electrical connection pattern of the LED light source mounted on each board according to the rated output of the DC converter.

In addition, the purpose of the present invention is to provide an LED lighting device that reduces the difficulty of the assembly process to reduce production costs and facilitates maintenance.

In order to achieve the above object, the present invention provides a plurality of substrates mounted on the one surface of the body having an insertion groove formed on one surface thereof, each of which includes a terminal mounted with an LED light source and electrically connected to the LED light source. A plurality of through holes formed at positions corresponding to the insertion grooves for each of the substrates, respectively, and are connected to the through holes of the plurality of substrates by being inserted into the insertion grooves of the body. As a means for electrically connecting a terminal and the power line, one end of the light source through the covering of the power line and the copper wire and the other end provides a LED lighting device comprising a power connection means for contacting the terminal.

In the LED lighting apparatus of the present invention, at least two pairs of through holes may be formed in each of the substrates. In addition, a plurality of insertion grooves may be formed, and the power line may be inserted into each of the plurality of insertion grooves.

According to the present invention, even when a plurality of substrates are mounted on the body, since the terminals of each board are directly connected to the power line, the LED light source is damaged due to the high power near the power input terminal as in the prior art, or the resistance heating of the circuit pattern is greatly reduced. As a result, the service life of the LED lighting device can be maximized.

In addition, the work is very simple and convenient because the power is connected by simply fastening only the power connection means to the corresponding position. Therefore, even beginners can work as much as possible, which can greatly reduce labor costs, greatly improve work speed, and simplify maintenance work.

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

3 is a plan view of the LED fluorescent lamp 100 according to an embodiment of the present invention, Figure 4 is a cross-sectional view taken along the line AA 'of FIG.

LED fluorescent light 100 according to an embodiment of the present invention is a plurality of substrates 120a, 120b, 120c are coupled to one surface of the body 110, a plurality of LED light source on each substrate (120a, 120b, 120c) It is the same as the conventional point in that 122 is arrange | positioned.

At this time, the body 110 is preferably made of aluminum material to act as a heat sink, in order to increase the heat radiation efficiency, each substrate 120a, 120b, 120c by using an adhesive tape on the one surface of the body 110, etc. Should be in close contact.

In particular, the LED fluorescent light 100 according to an embodiment of the present invention is inserted into the power line 40 in the longitudinal direction on the one surface of the body 110, and penetrates through each substrate (120a, 120b, 120c) By using the power connection means 130 is characterized in that the electrical connection between the power line 40 and the terminal 128 of each board.

Specifically, on one surface of the body 120, two insertion grooves 112 into which the (+) power line 40a and the (-) power line 40b are respectively inserted are formed in the longitudinal direction, and each substrate 120a is formed. A plurality of through holes 126 is formed in positions 120b and 120c corresponding to the respective insertion grooves 112.

As such, when the insertion groove 112 is formed in the longitudinal direction of the body 120, there is an advantage in that the body 120 may be easily manufactured through extrusion of aluminum.

3 shows that three substrates are arranged in a row, the number of substrates is not limited thereto, and the arrangement of the substrates is not necessarily limited to the straight type. The substrates 120a, 120b, and 120c used may be PCB substrates based on insulating materials such as epoxy, or may be metal substrates.

At least one pair of through holes 126 should be formed in each of the substrates 120a, 120b, and 120c, and each through hole 126 is formed with a positive terminal (128a) and ( It must be formed to penetrate through the terminals 128b. At this time, the (+) terminal 128a and the (-) terminal 128b are electrically connected to the LED light source 122 through a circuit pattern not shown.

Power connection means 130 is fastened to the through-hole 126, the end of which is inserted into or in contact with the copper wire through the covering of the power line (40a, 40b) embedded in the insertion groove (112). The power connection means 130 may be a screw or the like. For smooth electrical connection, a head portion having a diameter larger than that of the through hole 126 is formed at the top of the power connection means 130, and power lines 40a and 40b are provided at the bottom thereof. It is desirable to form a tip portion that can easily penetrate the sheath.

Therefore, the positive terminal 128a and the negative terminal 128b formed on each of the substrates 120a, 120b, and 120c are positioned on opposite sides of the substrate through the power connection unit 130, respectively. And (-) power lines 40b, respectively.

On the other hand, when at least two or more pairs of through holes 126 are formed in each of the substrates 120a, 120b, and 120c, the power connection position may be appropriately changed according to the rated output of the DC converter (not shown). To this end, the (+) terminal 128a and the (-) terminal 128b of each of the substrates 120a, 120b, and 120c are formed long on one surface of the substrate in the longitudinal direction as shown in FIG. 3, and the (+) terminal It is sufficient to form a plurality of through holes 126 in the (128a) and (-) terminals 128b. The position of each through hole 126 may be determined experimentally according to the arrangement or electrical characteristics of the LED light source 122.

In FIG. 3, three pairs of through holes 126 are formed for each of the substrates 120a, 120b, and 120c, and the power connection means 130 is mounted in the through holes 126 located first from the left. It is shown. Of course, the number of the through holes 124 is not limited thereto.

The position at which the power connection means 130 is fastened may be appropriately determined according to the rated output of the DC converter (not shown), and a predetermined identification mark for each through hole 126 is provided, for example, the rated output voltage of the corresponding DC converter. -If you will be able to conveniently distinguish the mounting position of the power connection means 130.

As described above, in the LED fluorescent light 100 according to the embodiment of the present invention, the substrates 120a, 120b, and 120c are not electrically connected to adjacent substrates, but each of the substrates 120a, 120b, and 120c is connected to a power supply means ( 130 is directly connected to the power supply line 40. Therefore, the resistance value is significantly lower than that of the conventional method, thereby reducing heat generation and preventing the LED light source 122 from being damaged due to high power near the power input terminal.

In addition, since only the power connection means 130 is fastened to the corresponding position by the power connection is made is very easy to connect the power. Therefore, even beginners can work as much as possible, which can greatly reduce labor costs and greatly improve the work speed. Furthermore, maintenance work is simplified.

Meanwhile, the power connection structure of the LED fluorescent light 100 shown in FIGS. 3 and 4 is merely an example and may be modified in various forms.

For example, as shown in the plan view of FIG. 5 and FIG. 6 (sectional view taken along line B-B 'of FIG. 5), the body 110 may be connected to the (+) power line 40a and the (-) power line 40b. It can also be inserted into both sides spaced apart in the width direction of the). In this case, the (+) terminal 128a and the (-) terminal 128b are spaced apart from each other on the substrates 120a, 120b, and 120c with the LED light source 122 interposed therebetween, so as to be formed in the longitudinal direction of the substrate.

In this case as well, at least one through hole 126 is formed in each of the (+) terminal 128a and the (-) terminal 128b in each of the substrates 120a, 120b, and 120c, and the through hole 126 in the proper position is provided. Power connection means 130 is fastened to.

In addition, when the LED light source 122 is composed of three types of R (red), G (green), B (blue), each of the R, G, B light source may need to be connected to each other independently.

The top view of FIG. 7 and FIG. 8 (sectional view taken along the line C-C 'of FIG. 7) illustrate this case, and the body 110 includes three (+) power lines connected to R, G, and B, respectively. (-) Power line 40d used for common ground with 40a, 40b, 40c is inserted and mounted, and each board 120a, 120b, 120c corresponds to (+) power line 40a, 40b, 40c, respectively. Three (+) terminals and one (-) terminal corresponding to the (-) power supply line 40d are formed.

At least one through hole 126 is formed in each terminal 128, and the power connection means 130 is fastened through the through hole 126 as described above.

In addition, although the case where the plurality of substrates 120a, 120b and 120c are arranged in a line has been described above, even when the plurality of substrates 120a, 120b and 120c are arranged in the form of a surface light source as shown in FIG. The present invention can be applied.

In this case, since the insertion grooves 112 of the body 110 should be formed at positions corresponding to the terminals of the substrates 120a, 120b, and 120c, the insertion grooves 112 should be formed in a zigzag shape. In this case, after the body 110 is manufactured by extrusion molding or die casting, it is necessary to form the insertion groove 112 by post-processing the necessary portion.

In addition, the case where only one power line is inserted into each insertion groove 112 has been described. However, in some cases, a plurality of power lines may be inserted into one insertion groove 112. This is because it is possible to fasten the power connection means 130 so as not to contact the adjacent power line if only the position of the through hole 126 is properly spaced.

In addition, while the above has been described a preferred embodiment of the present invention using the LED fluorescent lamp 100, the embodiment of the present invention is not only a fluorescent lamp but also other kinds of a plurality of substrates are mounted on the body 110 that serves as a heat sink Of course, the same can be applied to LED lighting devices (side lights, security lights, lighting lights, traffic lights, etc.).

Meanwhile, the present invention is not limited to the above-described embodiments and may be modified or modified in various forms, and if the modified or modified embodiments include the technical idea of the present invention included in the claims to be described below, the present invention. It would be natural to fall within the scope of the right of law.

1 is a plan view of a conventional LED fluorescent lamp

2 is a partial cross-sectional view of a conventional LED fluorescent lamp

3 is a plan view of an LED fluorescent lamp according to an embodiment of the present invention;

4 is a cross-sectional view taken along line AA ′ of FIG. 3.

5 is a plan view of the LED fluorescent lamp according to another embodiment of the present invention

FIG. 6 is a cross-sectional view taken along line BB ′ of FIG. 5.

7 is a plan view of an LED fluorescent lamp according to another embodiment of the present invention

8 is a cross-sectional view taken along the line CC ′ of FIG. 7.

9 is a plan view of the LED fluorescent lamp according to another embodiment of the present invention

* Description of the symbols for the main parts of the drawings *

100: LED fluorescent light 110: body

112: insertion groove 120a, 120b, 120c: substrate

122: LED light source 126: through hole

128: terminal 130: power connection means

Claims (3)

A body having an insertion groove formed on one surface thereof; A plurality of substrates mounted on the one surface of the body and each having a terminal mounted with an LED light source and electrically connected to the LED light source; A plurality of through holes formed at positions corresponding to the insertion grooves for each of the plurality of substrates, each penetrating through the terminals; A power line inserted into and inserted into the insertion groove of the body; A means for electrically connecting the terminal and the power line by being fastened to the through-holes of the plurality of substrates, one end of the power supply connecting means penetrating through the covering of the power line and contacting the copper wire; LED lighting device including The method of claim 1, LED lighting device, characterized in that at least two pairs of through holes are formed in each of the plurality of substrates The method of claim 1, The plurality of insertion grooves are formed, LED lighting device, characterized in that the power line is inserted into each of the plurality of insertion grooves.
KR1020090133760A 2009-12-30 2009-12-30 Illuminating device using light emitting diode which is convenient of power connection KR20110077247A (en)

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Application Number Priority Date Filing Date Title
KR1020090133760A KR20110077247A (en) 2009-12-30 2009-12-30 Illuminating device using light emitting diode which is convenient of power connection

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101272108B1 (en) * 2013-02-22 2013-06-07 박윤진 Led lighting device for advertising panels
CN107768358A (en) * 2016-08-22 2018-03-06 三星电子株式会社 Light source module and the backlight assembly including light source module
KR20220091950A (en) * 2020-12-24 2022-07-01 김광태 Bolt for wire connect and wire connecting structure with thereofl

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101272108B1 (en) * 2013-02-22 2013-06-07 박윤진 Led lighting device for advertising panels
CN107768358A (en) * 2016-08-22 2018-03-06 三星电子株式会社 Light source module and the backlight assembly including light source module
US10509159B2 (en) 2016-08-22 2019-12-17 Samsung Electronics Co., Ltd. Light source module and backlight assembly having the same
KR20220091950A (en) * 2020-12-24 2022-07-01 김광태 Bolt for wire connect and wire connecting structure with thereofl

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