CN103742821A - LED flexible light bar - Google Patents
LED flexible light bar Download PDFInfo
- Publication number
- CN103742821A CN103742821A CN201410036932.1A CN201410036932A CN103742821A CN 103742821 A CN103742821 A CN 103742821A CN 201410036932 A CN201410036932 A CN 201410036932A CN 103742821 A CN103742821 A CN 103742821A
- Authority
- CN
- China
- Prior art keywords
- pad
- point
- components
- parts
- bonding pads
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000005452 bending Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005538 encapsulation Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 2
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Landscapes
- Led Device Packages (AREA)
Abstract
The invention discloses an LED flexible light bar which comprises a flexible printed circuit board and components. The components at least include an LED lamp, and electrodes of the components are respectively welded to corresponding bonding pads of the flexible printed circuit board; first branched bonding pads are arranged at positions close to the bonding pads, and the first branched bonding pads are arranged side by side with the bonding pads; the first branched bonding pads are of set size which enables two ends of the first branched bonding pads along the selected direction respectively surpass two ends of the bonding pads along the selected direction. Since the branched bonding pads are further added beside the joints of the components like the bonding pad as well as the LED lamp and the flexible printed circuit board, parts of the light bar easy to be damaged by bending can be protected, yield rate is increased, and service life of a product is prolonged.
Description
Technical field
The present invention relates to LED, specifically relate to a kind of LED flexible lamp strip.
Background technology
LED flexible lamp strip, a kind of by LED, current-limiting resistance or other electronic devices and components, adopt SMT(surface mount) technique, be welded to the bent flexible PCB of FPC(of certain circuit structure) a kind of product above, according to the demand of different technologies parameter, LED flexible lamp strip entire length differs, and several centimetres can to nearly km.At present, the LED of multiple package dimension is because the demand of environment for use on the market, or in order to reduce the thermal resistance of LED inside or in order to reduce material cost, it is thinner that package thickness is done.The LED of this thin encapsulation, because many-sided reasons such as product size, structure, circuit, optics, the orientation of LED two pins must be also that overbending direction is parallel with FPC length extension direction, at this moment, because the encapsulation of LED lamp pearl is very thin, bend resistance undercapacity, when producing, transporting, install and use, when bending, the different bad bending failures that cause because of bending coefficient between soft FPC and hard pad are electrically connected, in addition, compared with long components and parts, comprise that LED lamp itself, also easily because improper bending causes damaging, causes product bad.
Summary of the invention
The technical problem to be solved in the present invention is to overcome above defect, proposes a kind of LED flexible lamp strip, increases the intensity of lamp bar weakness, and the damage causing while avoiding lamp bar bending is simple in structure, makes easily.
Technical problem of the present invention solves by the following technical programs.
A kind of LED flexible lamp strip, comprise flexible PCB, components and parts, described components and parts at least comprise LED lamp, each electrode of described components and parts is welded on respectively on each pad of flexible PCB separately, on described flexible PCB, in the location arrangements near pad, there is first point of pad, described first point of pad and pad are arranged side by side, described first point of pad has setting size, and this setting size makes first point of pad exceed respectively the two ends of described pad along preferential direction along the two ends of preferential direction.
Described preferential direction is consistent with the direction of flexible PCB bending.
Two pads that described components and parts connect are left pad and backhand welding dish, described first point of pad and left pad, components and parts, backhand welding dish are arranged side by side, described setting size makes described first point of pad along the left end of preferential direction, exceed the left end of left pad, and makes its right-hand member exceed the right-hand member of backhand welding dish.
Relative both sides at described pad are arranged side by side with respectively first point of pad separately.
Also comprise second point of pad, described second point of pad and components and parts side by side and near arrange.
The present invention is compared with the prior art had beneficial effect: the present invention increases a point of pad again on the side of the components and parts such as common pad, LED lamp and FPC junction; because a point pad has good bend resistance performance; so can protect the position of conventionally easily damaging because of bending; in the bending of lamp bar, guarantee that damageable zone can be not bending; thereby improved the bending property of lamp bar, improved yields and product service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment one;
Fig. 2 is the structural representation of the specific embodiment two;
Fig. 3 is the structural representation of the specific embodiment three; .
The specific embodiment
The specific embodiment one
A kind of LED flexible lamp strip as shown in Figure 1, extends also flexible along left and right length direction in figure.Comprise flexible PCB (FPC) 1, mount the components and parts 2 that are welded on flexible PCB 1, components and parts 2 are as LED lamp, current-limiting resistance etc.The electrode pin of components and parts 2 is welded on the pad 3 of FPC.Because lamp bar is in bending process, between soft flexible PCB 1 and hard pad 3, bend the different loose contacts that easily cause of coefficient, and the external pin intensity deficiency of part components and parts or LED, in bending process, easily there is the phenomenon of peeling off between pin and components and parts encapsulation main body or pin fractures, for this reason, at rapid wear place and pad 3 first point of pad 4 placed side by side, strengthen the bend resistance ability at pad 3 places.First point of pad 4.First point of pad 4 has setting size, and its left and right two ends exceed respectively the two ends, left and right of pad 3, can guarantee that like this place, two ends, left and right of pad 3 can not occur along the bending of left and right length direction, thereby avoids damaging.
First point of pad 4, when the brush tin cream operation of SMT technique, equally be brushed full tin cream with other pad 3; Until SMT technique, cross after Reflow Soldering, first point of tin cream above pad is set in first point above pad, makes first point of pad sclerosis, thereby increases the bend resistance ability at first point of pad place, reaches the demand that increases LED flexible lamp strip bend resistance performance.
The specific embodiment two
Be with the specific embodiment one difference, first, the length of first point of pad 4 increases, its left and right two pads 3, components and parts 2 near components and parts are arranged side by side, the left end of first point of pad 4 exceedes the left end of left pad, right-hand member exceedes the right-hand member of backhand welding dish, can make so whole components and parts 2, pad 3 places can not occur along the bending of left and right length direction, has protected the components and parts such as LED; Its two, in the both sides up and down of left and right two pads 3, components and parts 2, all placed first point of pad 4, further more protection effect.
The specific embodiment three
Be with the specific embodiment one difference; due to components and parts 2 length are long or intensity too a little less than; in bending process; the bad damage phenomenon that some weak parts of components and parts 2 encapsulation main body itself there will be; set up second point of pad 42 for this reason; second point of pad 42 and components and parts 2 side by side and near arranging, can directly be avoided, at components and parts 2 places, the bending along left and right length direction occurs, thereby protect the components and parts such as LED itself.The making of second point of pad 42 is identical with first point of pad 4.
First point of pad and second point of pad can be sky pads, also can weld components and parts, as the connection welding of circuit.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a LED flexible lamp strip, comprise flexible PCB, components and parts, described components and parts at least comprise LED lamp, each electrode of described components and parts is welded on respectively on each pad of flexible PCB separately, it is characterized in that: on described flexible PCB, in the location arrangements near pad, have first point of pad, described first point of pad and pad are arranged side by side, described first point of pad has setting size, and this setting size makes first point of pad exceed respectively the two ends of described pad along preferential direction along the two ends of preferential direction.
2. LED flexible lamp strip as claimed in claim 1, is characterized in that: described preferential direction is consistent with the direction of flexible PCB bending.
3. LED flexible lamp strip as claimed in claim 2, it is characterized in that: the pad that described components and parts connect is left pad and backhand welding dish, described first point of pad and left pad, components and parts, backhand welding dish are arranged side by side, described setting size makes described first point of pad along the left end of preferential direction, exceed the left end of left pad, and makes its right-hand member exceed the right-hand member of backhand welding dish.
4. LED flexible lamp strip as claimed in claim 2, is characterized in that: the relative both sides at described pad are arranged side by side with respectively first point of pad separately.
5. LED flexible lamp strip as claimed in claim 2, is characterized in that: also comprise second point of pad, described second point of pad and components and parts side by side and near arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036932.1A CN103742821A (en) | 2014-01-25 | 2014-01-25 | LED flexible light bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036932.1A CN103742821A (en) | 2014-01-25 | 2014-01-25 | LED flexible light bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103742821A true CN103742821A (en) | 2014-04-23 |
Family
ID=50499870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036932.1A Pending CN103742821A (en) | 2014-01-25 | 2014-01-25 | LED flexible light bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740570A (en) * | 2018-07-20 | 2020-01-31 | 京东方科技集团股份有限公司 | Flexible circuit boards, light bars, light sources and display devices |
| CN114900950A (en) * | 2022-05-25 | 2022-08-12 | 广东江粉高科技产业园有限公司 | Bending crack-resistant flexible circuit board and design method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080067526A1 (en) * | 2006-09-18 | 2008-03-20 | Tong Fatt Chew | Flexible circuits having improved reliability and thermal dissipation |
| CN101592322A (en) * | 2009-06-05 | 2009-12-02 | 史杰 | The LED method for packing of high-power LED lighting fixture |
| CN101621890A (en) * | 2009-04-30 | 2010-01-06 | 深圳宝明精工有限公司 | Technology for improving welding disk circuit of flexible circuit board of back light source |
| CN201925758U (en) * | 2010-11-17 | 2011-08-10 | 深圳市莱欣特光电有限公司 | LED (light-emitting diode) lamp |
| CN102287670A (en) * | 2011-08-05 | 2011-12-21 | 王宁 | Enhanced soft LED (light emitting diode) lamp strip and manufacturing method thereof |
| CN202216048U (en) * | 2011-08-04 | 2012-05-09 | 深圳市零奔洋科技有限公司 | LED lamp strip with LED lamp protection architecture |
| CN102773578A (en) * | 2012-07-25 | 2012-11-14 | 台龙电子（昆山）有限公司 | Bonding pad which welds LED (light-emitting diode) lamp strips on flexible plate |
| US20120300457A1 (en) * | 2010-01-15 | 2012-11-29 | Samsung Electronics Co., Ltd. | Light-emitting device |
-
2014
- 2014-01-25 CN CN201410036932.1A patent/CN103742821A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080067526A1 (en) * | 2006-09-18 | 2008-03-20 | Tong Fatt Chew | Flexible circuits having improved reliability and thermal dissipation |
| CN101621890A (en) * | 2009-04-30 | 2010-01-06 | 深圳宝明精工有限公司 | Technology for improving welding disk circuit of flexible circuit board of back light source |
| CN101592322A (en) * | 2009-06-05 | 2009-12-02 | 史杰 | The LED method for packing of high-power LED lighting fixture |
| US20120300457A1 (en) * | 2010-01-15 | 2012-11-29 | Samsung Electronics Co., Ltd. | Light-emitting device |
| CN201925758U (en) * | 2010-11-17 | 2011-08-10 | 深圳市莱欣特光电有限公司 | LED (light-emitting diode) lamp |
| CN202216048U (en) * | 2011-08-04 | 2012-05-09 | 深圳市零奔洋科技有限公司 | LED lamp strip with LED lamp protection architecture |
| CN102287670A (en) * | 2011-08-05 | 2011-12-21 | 王宁 | Enhanced soft LED (light emitting diode) lamp strip and manufacturing method thereof |
| CN102773578A (en) * | 2012-07-25 | 2012-11-14 | 台龙电子（昆山）有限公司 | Bonding pad which welds LED (light-emitting diode) lamp strips on flexible plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740570A (en) * | 2018-07-20 | 2020-01-31 | 京东方科技集团股份有限公司 | Flexible circuit boards, light bars, light sources and display devices |
| CN114900950A (en) * | 2022-05-25 | 2022-08-12 | 广东江粉高科技产业园有限公司 | Bending crack-resistant flexible circuit board and design method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2019382303B2 (en) | LED flexible light bar | |
| CN111915984B (en) | Display device | |
| CN103256511A (en) | Lamp strip combination | |
| CN102983282B (en) | Organic light emitting diode module | |
| CN103742821A (en) | LED flexible light bar | |
| CN104617073B (en) | Diode device for small signals | |
| US20130215627A1 (en) | Electronic unit base and electronic module and electronic device using the same | |
| CN207527350U (en) | A kind of flexible LED rope light | |
| TWI524570B (en) | Light-emitting module of organic light-emitting device | |
| US8113891B1 (en) | Connector terminal | |
| CN207994161U (en) | Connector pin socket protection cover | |
| CN205454232U (en) | Interface FPC | |
| CN207527349U (en) | A kind of flexible LED rope light | |
| TWI550457B (en) | Touch panel and touch control module | |
| CN204014275U (en) | For the pad syndeton of link block plate and motherboard | |
| CN104362137A (en) | High-heat-dissipativity diode | |
| CN205196090U (en) | Backlight flexible wiring board pad | |
| CN203118934U (en) | Paster type diode device | |
| CN207213693U (en) | A kind of LED flexible light board | |
| CN203312282U (en) | COF output end lead wire structure | |
| CN203760782U (en) | Safety power socket and power extension device with the power socket | |
| CN205246942U (en) | Optical module | |
| CN212080925U (en) | A COB light bar | |
| CN205645884U (en) | Be fit for LED that reflow soldering pasted dress | |
| CN203850487U (en) | Electric connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |