CN102625578A - Light-emitting diode (LED) circuit board component - Google Patents
Light-emitting diode (LED) circuit board component Download PDFInfo
- Publication number
- CN102625578A CN102625578A CN2011102030239A CN201110203023A CN102625578A CN 102625578 A CN102625578 A CN 102625578A CN 2011102030239 A CN2011102030239 A CN 2011102030239A CN 201110203023 A CN201110203023 A CN 201110203023A CN 102625578 A CN102625578 A CN 102625578A
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- led
- wiring board
- main traverse
- traverse line
- negative pole
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- 239000004020 conductor Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 17
- 239000011889 copper foil Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 241001232787 Epiphragma Species 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention relates to a light-emitting diode (LED) circuit board component. The LED circuit board component comprises one or more LED circuit boards (1), a positive main wire (3) and a negative main wire (4), a plurality of serially-connected LED groups are arranged on each LED circuit board (1), each serially-connected LED group comprises a plurality of serially-connected LEDs (2), and the serially-connected LED groups are connected in parallel to the positive circuit (5) and the negative circuit (6) of the LED circuit board (1); the positive main wire (3) and the negative main wire (4) are separated from the LED circuit boards (1) by a certain distance; and a positive circuit (5) is connected with the positive main wire (3) through a positive connecting wire (13), and the negative circuit (6) is connected with the negative main wire (4) through the negative connecting wire (14). The LED circuit board component is low in manufacturing cost and high in radiating performance, the reliability of a product is greatly improved, the actual service life is greatly prolonged, and working length of the product is increased.
Description
Technical field
The present invention relates to LED wiring board field, be specifically related to a kind of new LED circuit board module.
Background technology
In the LED of prior art wiring board; The main line of the LED wiring board product of this prior art just in the circuit board; Promptly be exactly with the main line that is positioned at the wiring board dual-side of wiring board one with; Main line with itself be exactly the part of the conducting wire layer of wiring board, be generally Copper Foil, mainly be to be used for the operating current of directing LED.
In practical application; LED wiring board for this prior art; The LED lamp that general employing is about 3 is connected into one group, on the LED wiring board, forms some LED lamp series like this, leans on the main line on wiring board product both sides that these LED lamp series are together in parallel then.
Be typically, the head end of wiring board product and end all have positive-negative polarity (promptly being arranged to both positive and negative polarity), and when practical application, directly joining end to end gets final product.
But, unsuitable long when therefore connecting because unavoidably there is resistance when long in the LED wiring board, otherwise can cause excessive voltage attenuation.
And if the LED wiring board is long, the LED lamp series of parallel connection is too much; The main line of wiring board both sides needs the excessive electric current of load; Cause excessive heating, these heats are difficult for dissipating fast together with the heat of LED lamp work itself; Cause LED lamp working temperature too high, so the luminescent properties and the reliability that influence the LED lamp with and useful life.
For this reason, the wiring board of prior art usually adopts broad and thicker copper foil circuit layer, because the cost of Copper Foil is high, this unavoidably can cause higher material cost, and its final heat dispersion and functional reliability are unsatisfactory.For example, the LED wiring board of this prior art is in practical application, and the total length after it connects generally is no more than 5 meters; Otherwise voltage attenuation is too much, be difficult to guarantee all LED lamp normal working voltages, and caloric value is excessive; Radiating effect is bad, is difficult to be applied in the application scenario of high requirement.
In view of the above, press for a kind of new LED circuit board module in this area, with alleviate or even avoid above-mentioned defective; Its cost of manufacture reduces; Perfect heat-dissipating, reliability of products and real work life-span all improve greatly, and its active length also can prolong greatly.
Based on these problems of the prior art, and the present invention has been proposed.
Summary of the invention
In view of the above, the present invention has been proposed.The present invention is intended to solve above technical problem with other.
According to an aspect of the present invention, LED circuit board module of the present invention can be designed to make that the two ends of LED wiring board product are opposed polarity, and for example an end is (+) utmost point just, and the other end is negative (-) utmost point.LED in this single hop LED wiring board all is together in series, and promptly forms series circuit.
This kind LED wiring board product is equivalent to cancel former main line, directly is together in series the lamp resistance in the middle of the wiring board.
According to LED circuit board module of the present invention, two main lines (for example being general copper BRV line) in use is set separately at the two ends of LED wiring board product, serve as the both positive and negative polarity supply lines of product.The both positive and negative polarity of then that each is independent LED wiring board links to each other with two main lines (being respectively both positive and negative polarity), can realize the function of LED circuit board module of the present invention.
As a preferred embodiment; Connected mode between LED wiring board that each is independent and the shared both positive and negative polarity main line can be arranged to parallel way; That is, each independent LED wiring board can be designed to be connected into one group with the LED more than 3, becomes parallel circuits with main line again.
Certainly; As another preferred embodiment; Each independent LED wiring board can be designed to make that mounted LEDs is connected into a LED series with the LED more than 3 on it; Such LED series can be two or more, and these LED series are arranged on each independent LED wiring board, are connected accordingly with shared both positive and negative polarity main line separately in parallel again.A kind of concrete connected mode is correspondingly to weld pad and corresponding shared main line on each independent LED wiring board with connecting conducting line segment.
More specifically; According to an aspect of the present invention, the invention provides a kind of LED circuit board module, comprising: one or more LED wiring boards; On each LED wiring board, a plurality of LED are installed, said a plurality of LED are connected in series on the anodal circuit and negative pole circuit of said LED wiring board; Article one, independent anodal main traverse line and an independent negative pole main traverse line, wherein said anodal main traverse line, negative pole main traverse line separate certain distance ground with said one or more LED wiring boards and arrange; Wherein, the anodal circuit of each LED wiring board passes through the anodal lead that connects and is connected with said anodal main traverse line conduction, and the negative pole circuit of each LED wiring board is connected with negative pole main traverse line conduction through negative pole connection lead.
According to a further aspect in the invention; The present invention also provides a kind of LED circuit board module; Comprise: one or more LED wiring boards; Each LED wiring board is provided with a plurality of LED series, and wherein each said LED series all comprises a plurality of LED coupled in series, and said a plurality of LED series is connected on the anodal circuit and negative pole circuit of said LED wiring board in parallel; Article one, independent anodal main traverse line and an independent negative pole main traverse line, wherein said anodal main traverse line, negative pole main traverse line separate certain distance ground with said one or more LED wiring boards and arrange; Wherein, the anodal circuit of each LED wiring board passes through the anodal lead that connects) be connected with said anodal main traverse line conduction, and the negative pole circuit of each LED wiring board is connected with negative pole main traverse line conduction through negative pole connection lead.
According to one embodiment of the invention, said LED wiring board is processed by single-sided flexible circuit board, double-faced flexible wiring board or multi-layer flexible circuit board.
According to another embodiment of the present invention, anodal main traverse line and negative pole main traverse line are the plain conductors of unlimited continuous length.
According to another embodiment of the present invention, the pad that is arranged on each LED wiring board two ends is through anodal connection lead, negative pole connect lead and be connected with anodal main traverse line, negative pole main traverse line conduction respectively accordingly.
According to another embodiment of the present invention, the thickness of the line layer of said LED wiring board is more than 0.01 millimeter, and the width of said LED wiring board is more than 3.5 millimeters.
LED circuit board module of the present invention can pass through encapsulating and handle, and becomes the Waterproof LED circuit board module of embedding.
LED circuit board module cost of manufacture of the present invention reduces, perfect heat-dissipating, and reliability of products and real work life-span all improve greatly, and its active length also prolongs greatly.
In following description, with the details of setting forth one or more embodiment of the present invention to accompanying drawing and embodiment.From these descriptions, accompanying drawing and claim, can know other features, objects and advantages of the present invention.
Description of drawings
Through combining following this specification of advantages, it is more obvious that characteristic of the present invention, purpose and advantage will become, and accompanying drawing specifies as follows.
Fig. 1 is the sketch map of LED wiring board according to an embodiment of the invention, is shown as the FPC (FPC) that is welded with LED in the present embodiment.
Fig. 2 is the sketch map that the LED circuit board module of common wire is set on LED wiring board shown in Figure 1 both sides according to an embodiment of the invention, has shown that conduction is connected two public both positive and negative polarity leads through the connection conducting line segment and at the two ends of LED wiring board shown in Figure 1 (both positive and negative polarity).
Embodiment
Below will be to be applicable to that the flexible print circuit board that LED and other element are installed is that specific embodiment comes the present invention is described in more detail.Should be appreciated that the present invention is not only applicable to the single-sided flexible printed substrate, also be applicable to double-sided flexible printed circuit board or multilayer LED wiring board, and also be applicable to rigidity wiring board (being also referred to as " hardboard " in the industry).
The one side that term " single-sided flexible printed substrate " only refers at this flexible print circuit board is provided with circuit.Term " double-sided flexible printed circuit board " refers on the two sides of this flexible print circuit board and all is provided with circuit.
Before describing the present invention in detail, it will be appreciated by those skilled in the art that " element " should do the understanding on the most wide in range connotation in this application; Promptly comprise all types of elements that are used for electronic component, electric component or other type of circuit; For example various resistance, the element of various surface mount (SMT) type, the element of support rack type, various high power devices or the like; Comprise great power LED, or the like.
In addition, term " wiring board " and " circuit board " can use in the application with exchanging.
Below in conjunction with accompanying drawing and embodiment the manufacturing process of LED circuit board module of the present invention is done further to specify with structure.
One typical process flow of the LED wiring board of prior art is following.
Open material and (open base material; Base material is the base material of two-sided 1 ounce (OZ), the base material here refer to by the PI of the glue of two-layer 1OZ Copper Foil, two-layer 25 micron thick and one deck 25 micron thick totally 5 layers form)-boring (brill base material)-heavy copper-copper facing-exposure-development-etching-paste epiphragma (the positive and negative coverlay is attached on the wiring board after the etching simultaneously)-pressing-baking-silk-screen-electrical measurement-anti-oxidation-profile-FQC-packing-shipment.
Auxilliary flow process is: open material (positive and negative coverlay)-boring (boring the positive and negative coverlay)--change over to and paste the epiphragma operation.
According to a preferred embodiment of the invention, at first make single hop LED wiring board 1 as shown in Figure 1, the preferred typical process flow of one of which is following.
Open material: metal materials such as () pure copper foil and--bore the Copper Foil location hole and--Copper Foil is carried out laser cutting----paste positive and negative coverlay-pressing--literal-electrical measurement-anti-oxidation---profile-FQC-packing
Auxilliary flow process: open material (positive and negative coverlay)--boring (brill top ground cover film)--change over to mount for use.
As stated, those skilled in the art obviously can know, this manufacture craft does not relate to the technology of the heavy copper, copper facing, exposure, development, etching of prior art or the like contaminated environment at all, so very environmental protection.Moreover, its manufacture craft is simplified greatly, has deleted the processing step of many prior aries, so the whole manufacture craft of LED wiring board not only has unrivaled superiority aspect environmental protection, and the cost of its manufacture craft also reduces greatly.
Like this, just can obtain single face wiring board 1 as shown in Figure 1, wherein on the single face Copper Foil of single face wiring board 1, form both positive and negative polarity circuit 5 and 6.
Then, can on single hop LED wiring board 1 shown in Figure 1, mount a plurality of LED 2 with technology commonly known in the art, as shown in Figure 1.
Two independent public (both positive and negative polarity) main traverse lines 3 and 4 are provided, and they are connected with single hop LED wiring board 1 conduction respectively.
According to an embodiment; Wiring board on each single hop LED wiring board 1 can adopt a plurality of LED lamps are designed to a LED series (being applicable to short single hop LED wiring board 1); The a plurality of LED series that perhaps are designed to be connected in parallel (being applicable to long single hop LED wiring board 1); Then through for example being arranged on the pad at each single hop LED wiring board 1 two ends, and link to each other with 4 with public (both positive and negative polarity) main traverse line 3 respectively with 14, promptly via connecting conducting line segment 13; Realized with public (both positive and negative polarity) main traverse line 3 with 4 with wiring board 1 on both positive and negative polarity circuit 5 link to each other with 6, promptly obtained LED circuit board module as shown in Figure 2.Certainly, although in Fig. 2, only shown a single hop LED wiring board 1, those skilled in the art obviously are appreciated that can be at public (both positive and negative polarity) main traverse line 3 and 4 a plurality of single hop LED wiring boards 1 that are connected in parallel.
According to another embodiment, the two ends of single hop LED wiring board 1 are designed to different polarities, and promptly head end is+utmost point, and end is-utmost point, and the circuit of single hop LED wiring board 1 all is a series circuit, and promptly all components and parts such as LED and resistance all are in and are electrically connected in series.In this case, the structure of single hop LED wiring board 1 is equivalent to not use at work the conducting wire of prior art, directly adopts public (both positive and negative polarity) main traverse line 3 and 4 that components and parts such as LED lamp in the wiring board 12 and resistance are together in series.Like this, obviously the width and the thickness of the Copper Foil of wiring board can reduce as far as possible, to save cost.
As stated; This area designer is appreciated that just because of LED circuit board module of the present invention and can adopts two additional public main traverse lines to conduct electricity, and no matter is width or its thickness of the Copper Foil in the wiring board therefore; Compare with the LED wiring board of prior art, can be designed to littler.Like this, just can reduce material cost greatly.
For example, the thickness of the conducting wire layer material of wiring board 1 (for example Copper Foil) can be reduced to 0.01 millimeter, certainly, can be designed so that also its thickness is more than 0.01 millimeter.
For example, the width of wiring board 1 can be reduced to 3.5 millimeters.Certainly, also can be designed to more than 3.5 millimeters as required.
The LED 2 that is suitable for being installed on the wiring board 1 can comprise various types of LED, and for example model is monochrome or RGB three-color LED lights such as 335,3528,5050, or the like.The model of resistance can be 0603,0805,0812, or the like.
Obviously, this area designer is appreciated that fully that according to different application scenarios and customer requirement LED wiring board 1 of the present invention can comprise other various types of LED, resistance and other components and parts or the like.
For public (both positive and negative polarity) main traverse line 3 and 4, can form by any conductive metal or alloy material.It can be to be processed by conductive metal materials such as copper, aluminium, copper alloy, aluminium alloys.
In addition, as another preferred version, main traverse line 3 and 4 also can be wrapped through coil winding machine by some fine rules to be formed, and promptly forms twisted wire 3 and 4.The line diameter minimum of these some fine rules can be 0.01 millimeter.
LED wiring board 1 of the present invention can pass through encapsulating with main traverse line 3,4 and handle, and becomes the Waterproof LED circuit board module of embedding, and wherein wiring board 1 can be got up with the mode embedding of waterproof sealing by casting glue with main traverse line 3,4.
As stated, the design production decision of existing LED wiring board is metal (Copper Foil) thickening of leaning on product, can be through the ability of electric current to increase product.
But, according to the present invention, can use aforesaid connected mode to increase the rugosity (size) of main traverse line 3 and 4, and then improve the ability of main traverse line 3 and 4 loaded currents.
In sum,, can adopt the production technology of environmental protection LED wiring board and method to produce wiring board, reduce the thickness of conductive layer metal (generally being Copper Foil) according to the present invention.The mode of the additional main traverse line 3 of welding and 4 is adopted on the back side or both sides at LED circuit board module of the present invention; Go up main traverse line to every group of parallel interface place welding that already is designed to series-parallel circuit; The part has increased the electrical conduction current sectional area of original circuit (copper foil layer) on the wiring board, can unrestrictedly increase the length of final LED lamp band.
Moreover; Because public main traverse line 3 is to arrange dividually and conduct electricity and to link to each other via being connected conducting line segment 13 and 14 with 4 with wiring board 1; Therefore the heat of main traverse line 3 and 4 (a large amount of electric currents of load) generation when work can directly not transmit on the wiring board 1; Thereby greatly reduce the working temperature of LED wiring board 1 (especially LED 2), improved its functional reliability.
Preceding text by the agency of specific embodiment of the present invention.Yet should be appreciated that under the premise without departing from the spirit and scope of the present invention, can carry out various modifications.Therefore, other embodiment also belongs to the protection range of claim of the present invention.
Claims (10)
1. a LED circuit board module is characterized in that, comprising:
One or more LED wiring boards (1) are equipped with a plurality of LED (2) on each LED wiring board (1), said a plurality of LED (2) are connected in series on the anodal circuit (5) and negative pole circuit (6) of said LED wiring board (1);
Article one, independent anodal main traverse line (3) and an independent negative pole main traverse line (4), wherein said anodal main traverse line (3), negative pole main traverse line (4) separate certain distance ground with said one or more LED wiring boards (1) and arrange;
Wherein, The anodal circuit (5) of each LED wiring board (1) passes through the anodal lead (13) that connects and is connected with said anodal main traverse line (3) conduction, and the negative pole circuit (6) of each LED wiring board (1) is connected with negative pole main traverse line (4) conduction through negative pole connection lead (14).
2. LED circuit board module according to claim 1 is characterized in that, said LED wiring board (1) is processed by single-sided flexible circuit board, double-faced flexible wiring board or multi-layer flexible circuit board.
3. LED circuit board module according to claim 1 is characterized in that, anodal main traverse line (3) and negative pole main traverse line (4) are the plain conductors of unlimited continuous length.
4. LED circuit board module according to claim 1; It is characterized in that the pad that is arranged on each LED wiring board (1) two ends connects lead (14) and is connected with anodal main traverse line (3), negative pole main traverse line (4) conduction respectively through corresponding anodal connection lead (13), negative pole.
5. LED wiring board according to claim 1 is characterized in that, the thickness of the line layer of said LED wiring board (1) is more than 0.01 millimeter, and the width of said LED wiring board (1) is more than 3.5 millimeters.
6. a LED circuit board module is characterized in that, comprising:
One or more LED wiring boards (1); Each LED wiring board (1) is provided with a plurality of LED series; Wherein each said LED series all comprises a plurality of LED coupled in series (2), and said a plurality of LED series is connected on the anodal circuit (5) and negative pole circuit (6) of said LED wiring board (1) in parallel;
Article one, independent anodal main traverse line (3) and an independent negative pole main traverse line (4), wherein said anodal main traverse line (3), negative pole main traverse line (4) separate certain distance ground with said one or more LED wiring boards (1) and arrange;
Wherein, The anodal circuit (5) of each LED wiring board (1) passes through the anodal lead (13) that connects and is connected with said anodal main traverse line (3) conduction, and the negative pole circuit (6) of each LED wiring board (1) is connected with negative pole main traverse line (4) conduction through negative pole connection lead (14).
7. LED circuit board module according to claim 6 is characterized in that, said LED wiring board (1) is processed by single-sided flexible circuit board, double-faced flexible wiring board or multi-layer flexible circuit board.
8. LED circuit board module according to claim 6 is characterized in that, anodal main traverse line (3) and negative pole main traverse line (4) are the plain conductors of unlimited continuous length.
9. LED circuit board module according to claim 6; It is characterized in that the pad that is arranged on each LED wiring board (1) two ends connects lead (14) and is connected with anodal main traverse line (3), negative pole main traverse line (4) conduction respectively through corresponding anodal connection lead (13), negative pole.
10. LED wiring board according to claim 6 is characterized in that, the thickness of the line layer of said LED wiring board (1) is more than 0.01 millimeter, and the width of said LED wiring board (1) is more than 3.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203023.9A CN102625578B (en) | 2011-07-20 | 2011-07-20 | Light-emitting diode (LED) circuit board component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203023.9A CN102625578B (en) | 2011-07-20 | 2011-07-20 | Light-emitting diode (LED) circuit board component |
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| Publication Number | Publication Date |
|---|---|
| CN102625578A true CN102625578A (en) | 2012-08-01 |
| CN102625578B CN102625578B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110203023.9A Expired - Fee Related CN102625578B (en) | 2011-07-20 | 2011-07-20 | Light-emitting diode (LED) circuit board component |
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| CN (1) | CN102625578B (en) |
Cited By (5)
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| CN102927483A (en) * | 2012-11-20 | 2013-02-13 | 田茂福 | Integrated flip type LED illuminating assembly |
| CN109114457A (en) * | 2018-06-14 | 2019-01-01 | 苏州达方电子有限公司 | Light source lamp plate, its production method and the illuminated keyboard using it |
| US10727009B2 (en) | 2018-05-31 | 2020-07-28 | Darfon Electronics Corp. | Light source board, manufacturing method thereof, and luminous keyboard using the same |
| US10895372B2 (en) | 2018-05-31 | 2021-01-19 | Darfon Electronics Corp. | Light source board, manufacturing method thereof, and luminous keyboard using the same |
| US12061353B2 (en) | 2022-04-08 | 2024-08-13 | Darfon Electronics Corp. | Backlit module and key for backlit keyboard |
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| US10727009B2 (en) | 2018-05-31 | 2020-07-28 | Darfon Electronics Corp. | Light source board, manufacturing method thereof, and luminous keyboard using the same |
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| US12061353B2 (en) | 2022-04-08 | 2024-08-13 | Darfon Electronics Corp. | Backlit module and key for backlit keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102625578B (en) | 2015-02-18 |
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