CN105674132A - LED flexible strip light - Google Patents

LED flexible strip light Download PDF

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Publication number
CN105674132A
CN105674132A CN201410670267.1A CN201410670267A CN105674132A CN 105674132 A CN105674132 A CN 105674132A CN 201410670267 A CN201410670267 A CN 201410670267A CN 105674132 A CN105674132 A CN 105674132A
Authority
CN
China
Prior art keywords
led
fin
flexible pcb
bar lamp
soft bar
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
Application number
CN201410670267.1A
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Chinese (zh)
Inventor
温晓良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Eastfield Lighting Co Ltd
Original Assignee
Shenzhen Eastfield Lighting Co Ltd
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 Shenzhen Eastfield Lighting Co Ltd filed Critical Shenzhen Eastfield Lighting Co Ltd
Priority to CN201410670267.1A priority Critical patent/CN105674132A/en
Publication of CN105674132A publication Critical patent/CN105674132A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an LED flexible strip light. The LED flexible strip light comprises a flexible printed circuit board, multiple LEDs and multiple cooling fins. The flexible printed circuit board is in a long strip shape. The LEDs are fixedly connected to the flexible printed circuit board and electrically connected with the flexible printed circuit board. The multiple LEDs are distributed on the same flexible printed circuit board. The multiple cooling fins are all attached to the flexible printed circuit board and arranged at intervals. One cooling fin corresponds to at least one LED. The cooling fins and the corresponding LEDs are located on the two sides of the flexible printed circuit board correspondingly. All the cooling fins are attached to the flexible printed circuit board, and gaps between the cooling fins and the flexible printed circuit board do not exist, so that the cooling performance is improved. The multiple cooling fins are used for cooling the corresponding LEDs, the intervals among the cooling fins exist, the parts, in the positions of the intervals, of the flexible printed circuit board can achieve buckling capacity of the circuit board to the greatest degree, the unfavorable influence of the cooling fins on buckling is avoided, and therefore the buckling capacity is improved.

Description

The soft bar lamp of LED
Technical field
The present invention relates to the technical field of light fixture, particularly relate to a kind of soft bar lamp of LED.
Background technology
The soft bar lamp of general LED includes FPCB (FlexiblePrintedCircuitBoard, flexible printed circuit board), the double-clad copper foil plate on FPCB, the LED being affixed on FPCB pad and other electronic devices and components. General LED is soft there is following two technical problem in bar lamp:
1, being coated on the copper foil plate on FPCB, and be frequently present of space between FPCB, heat dispersion is not good, maintains the soft bar lamp of LED in 3 years to 5 years life-span, and the power of single LEDs is only between 0.06W to 0.2W, and luminous flux is inadequate. If power is too high, the life-span of the soft bar lamp of corresponding LED also can shorten.
2, by the restriction of copper foil plate, the bending ability of the soft bar lamp of LED, overflexing or many places bend simultaneously, and LED is soft, and bar lamp is easily damaged, it is impossible to meet the requirement to the bending ability of the soft bar lamp of LED when using under various circumstances.
Summary of the invention
Based on this, it is necessary to the not good problem with bending ability for heat dispersion, it is provided that a kind of perfect heat-dissipating and the bending soft bar lamp of the strong LED of ability.
A kind of soft bar lamp of LED, including flexible PCB, LED and fin;
Described flexible PCB is strip;
Described LED is fixedly connected on described flexible PCB, and described LED electrically connects with described flexible PCB; The quantity of described LED is multiple, and multiple described LED are distributed on a described flexible PCB;
The quantity of described fin is multiple, and multiple described fin are all attached on described flexible PCB, and has gap between multiple described fin; One described fin is corresponding with LED at least one described, and described fin lays respectively at the both sides of described flexible PCB with corresponding described LED.
Wherein in an embodiment, described fin is aluminium flake, and/or the power of described LED is 0.2W to 1.0W.
Wherein in an embodiment, also including electronic devices and components, described electronic devices and components are fixedly connected on described flexible PCB, and described electronic devices and components are electrically connected with described LED by described flexible PCB.
Wherein in an embodiment, described electronic devices and components are constant current resistance, the quantity of described constant current resistance is multiple, one described LED electrically connects with constant current resistance at least one described, described constant current resistance is located proximate to the described LED's electrically connected, and described constant current resistance is positioned at the same side of described flexible PCB with the described LED electrically connected.
Wherein in an embodiment, also including Waterproof glue line, described Waterproof glue line is coated on the overall outside that described flexible PCB, described LED, described fin and described electronic devices and components are formed.
Wherein in an embodiment, described fin is fixed on described flexible PCB by Sheet Metal Forming Technology, and the edge of described fin forms burr.
Wherein in an embodiment, multiple described fin and multiple described LED one_to_one corresponding, the distance between adjacent two described fin is described fin along 0.5 times to 2 times of the length of flexible PCB bearing of trend.
Wherein in an embodiment, multiple described fin and multiple described LED one_to_one corresponding, described fin is along 0.5 times to 4 times that the length of flexible PCB bearing of trend is that described fin is perpendicular to the length of flexible PCB bearing of trend.
Wherein in an embodiment, described flexible PCB has relative first surface and second surface, and the described LED of part is positioned on described first surface, and LED described in another part is positioned on described second surface; The described fin corresponding with the described LED being positioned on described first surface is positioned on described second surface, and the described fin corresponding with the described LED being positioned on described second surface is positioned on described first surface.
Wherein in an embodiment, described flexible PCB has relative first surface and second surface, and multiple described LED are respectively positioned on described first surface, and multiple described fin are respectively positioned on described second surface.
The soft bar lamp of above-mentioned LED, fin is all attached on flexible PCB, is absent from space, improve heat dispersion between fin and flexible PCB. Fin is multiple, is respectively used to the heat radiation of the LED of correspondence, has gap between fin, and the flexible PCB of gap location can play its bending ability to greatest extent, and bending will not be adversely affected by fin, therefore improves bending ability.
Accompanying drawing explanation
Fig. 1 is the side view of a soft bar lamp of embodiment LED;
Fig. 2 is the rearview of the soft bar lamp of LED shown in Fig. 1;
Fig. 3 is the A place enlarged diagram of the soft bar lamp of LED shown in Fig. 1;
Fig. 4 is the B place enlarged diagram of the soft bar lamp of LED shown in Fig. 1;
Fig. 5 is the C place enlarged diagram of the soft bar lamp of LED shown in Fig. 1;
Fig. 6 is the D place enlarged diagram of the soft bar lamp of LED shown in Fig. 2.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the soft bar lamp of LED is described more fully. Accompanying drawing gives the LED first-selected embodiment of soft bar lamp. But, LED is soft, and bar lamp can realize in many different forms, however it is not limited to embodiment described herein. On the contrary, the purpose providing these embodiments is to make the disclosure to the soft bar lamp of LED more thorough comprehensively.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology. The purpose describing specific embodiment it is intended merely to herein, it is not intended that in the restriction present invention at the term used in the description of LED soft bar lamp.
As shown in Figure 1 and Figure 2, the soft bar lamp 100 of the LED of an embodiment includes flexible PCB 120, LED140 and fin 160. Flexible PCB 120 is in strip. LED140 is fixedly connected on flexible PCB 120, and LED140 electrically connects with flexible PCB 120. The quantity of LED140 is multiple, and multiple LED140 are distributed on a flexible PCB 120. The quantity of fin 160 is multiple, and multiple fin 160 are all attached on flexible PCB 120, and have gap between multiple fin 160. One fin 160 is corresponding with at least one LED140, and fin 160 lays respectively at the both sides of flexible PCB 120 with corresponding LED140.
Fin 160 is all attached on flexible PCB 120, is absent from space, improves heat dispersion between fin 160 and flexible PCB 120. In one embodiment, fin 160 can be fixed on flexible PCB 120 by Sheet Metal Forming Technology. In other embodiments, fin 160 can be bonded on flexible PCB 120 by heat-conducting glue. Using fin 160 for aluminium flake as embodiment, the power of LED140 can rise to 0.2W to 1.0W. The service life of the soft bar lamp 100 of LED can also maintain 3 years to 5 years.
Fin 160 is multiple, being respectively used to the heat radiation of the LED140 of correspondence, have gap between fin 160, the flexible PCB 120 of gap location can play its bending ability to greatest extent, bending will not be adversely affected by fin 160, therefore improves bending ability.
In the embodiment shown in Fig. 1, Fig. 2, flexible PCB 120 has relative first surface and second surface, and multiple LED140 are respectively positioned on first surface, and multiple fin 160 are respectively positioned on second surface. In other embodiments, arranging of LED140 can be more flexible as required, for instance part LED140 is positioned on first surface, and another part LED140 is positioned on second surface. The fin 160 corresponding with the LED140 being positioned on first surface is positioned on second surface, and the fin 160 corresponding with the LED140 being positioned on second surface is positioned on first surface.
Wherein in an embodiment, LED is soft, and bar lamp 100 can also include electronic devices and components, and electronic devices and components are fixedly connected on flexible PCB 120, and electronic devices and components are electrically connected with LED140 by flexible PCB 120. Further, electronic devices and components can be constant current resistance 180, the quantity of constant current resistance 180 is multiple, one LED140 electrically connects with at least one constant current resistance 180, constant current resistance 180 is located proximate to the LED140's electrically connected, and constant current resistance 180 is positioned at the same side of flexible PCB 120 with the LED140 electrically connected. In preferably embodiment, the position at fin 160 place covers the position of constant current resistance 180 correspondence.
Shown in Fig. 3, a constant current resistance 180 electrically connects with a LED140, this constant current resistance 180 being located proximate near this LED140, and the position at fin 160 place covers the position of constant current resistance 180 correspondence. Shown in Fig. 4, two constant current resistance 180 electrically connect with a LED140, and these two constant current resistance 180 are close to being located proximate to of this LED140, and the position at fin 160 place covers the position of constant current resistance 180 correspondence. Constant current resistance 180 can also be not connected to referring also to Fig. 5, LED140.
In order to reach the function of waterproof, wherein in an embodiment, LED is soft, and bar lamp 100 can also include Waterproof glue line (not shown), and Waterproof glue line is coated on the overall outside that flexible PCB 120, LED140, fin 160 and electronic devices and components are formed.Being fixed in the embodiment on flexible PCB 120 at fin 160 by Sheet Metal Forming Technology, the edge of fin 160 can form burr, and burr contacts with Waterproof glue line, adds the adhesive force of Waterproof glue line, makes Waterproof glue line be not easily disconnected from.
In the present embodiment, multiple fin 160 are one to one with multiple LED140. Wherein in an embodiment, the distance between adjacent two fin 160 is fin 160 along 0.5 times to 2 times of the length of flexible PCB 120 bearing of trend. Within the scope of this, it is possible to take into account heat dispersion and bending ability, make both reach higher level. Referring also to Fig. 6, wherein in an embodiment, fin 160 is along 0.5 times to 4 times that the length of flexible PCB 120 bearing of trend is that fin 160 is perpendicular to the length of flexible PCB 120 bearing of trend. Within the scope of this, it is possible to take into account heat dispersion and bending ability, make both reach higher level.
Above example only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. the soft bar lamp of LED, it is characterised in that include flexible PCB, LED and fin;
Described flexible PCB is strip;
Described LED is fixedly connected on described flexible PCB, and described LED electrically connects with described flexible PCB; The quantity of described LED is multiple, and multiple described LED are distributed on a described flexible PCB;
The quantity of described fin is multiple, and multiple described fin are all attached on described flexible PCB, and has gap between multiple described fin; One described fin is corresponding with LED at least one described, and described fin lays respectively at the both sides of described flexible PCB with corresponding described LED.
2. the soft bar lamp of LED according to claim 1, it is characterised in that described fin is aluminium flake, and/or the power of described LED is 0.2W to 1.0W.
3. the soft bar lamp of LED according to claim 1, it is characterised in that also include electronic devices and components, described electronic devices and components are fixedly connected on described flexible PCB, and described electronic devices and components are electrically connected with described LED by described flexible PCB.
4. the soft bar lamp of LED according to claim 3, it is characterized in that, described electronic devices and components are constant current resistance, the quantity of described constant current resistance is multiple, one described LED electrically connects with constant current resistance at least one described, described constant current resistance is located proximate to the described LED's electrically connected, and described constant current resistance is positioned at the same side of described flexible PCB with the described LED electrically connected.
5. the soft bar lamp of LED according to claim 3, it is characterised in that also include Waterproof glue line, described Waterproof glue line is coated on the overall outside that described flexible PCB, described LED, described fin and described electronic devices and components are formed.
6. the soft bar lamp of LED according to claim 5, it is characterised in that described fin is fixed on described flexible PCB by Sheet Metal Forming Technology, the edge of described fin forms burr.
7. the soft bar lamp of LED according to claim 6, it is characterised in that multiple described fin and multiple described LED one_to_one corresponding, the distance between adjacent two described fin is described fin along 0.5 times to 2 times of the length of flexible PCB bearing of trend.
8. the soft bar lamp of LED according to claim 6, it is characterized in that, multiple described fin and multiple described LED one_to_one corresponding, described fin is along 0.5 times to 4 times that the length of flexible PCB bearing of trend is that described fin is perpendicular to the length of flexible PCB bearing of trend.
9. the soft bar lamp of LED according to any one of claim 1 to 8, it is characterised in that described flexible PCB has relative first surface and second surface, and the described LED of part is positioned on described first surface, and LED described in another part is positioned on described second surface; The described fin corresponding with the described LED being positioned on described first surface is positioned on described second surface, and the described fin corresponding with the described LED being positioned on described second surface is positioned on described first surface.
10. the soft bar lamp of LED according to any one of claim 1 to 8, it is characterized in that, described flexible PCB has relative first surface and second surface, and multiple described LED are respectively positioned on described first surface, and multiple described fin are respectively positioned on described second surface.
CN201410670267.1A 2014-11-20 2014-11-20 LED flexible strip light Pending CN105674132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410670267.1A CN105674132A (en) 2014-11-20 2014-11-20 LED flexible strip light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410670267.1A CN105674132A (en) 2014-11-20 2014-11-20 LED flexible strip light

Publications (1)

Publication Number Publication Date
CN105674132A true CN105674132A (en) 2016-06-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106132079A (en) * 2016-08-29 2016-11-16 广东永创鑫电子有限公司 Flexible circuit board of collapsible moulding a kind of of heat dissipation metal and preparation method thereof
CN106842707A (en) * 2017-03-09 2017-06-13 武汉华星光电技术有限公司 For the LED light bar and backlight assembly of backlight assembly
CN107131442A (en) * 2017-06-15 2017-09-05 广州市佛达信号设备有限公司 A kind of soft striation

Citations (7)

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Publication number Priority date Publication date Assignee Title
US20020047516A1 (en) * 2000-10-24 2002-04-25 Tadanobu Iwasa Fluorescent tube
CN1835671A (en) * 2005-03-14 2006-09-20 林项武 Radiator of electronic component
CN201050709Y (en) * 2007-04-28 2008-04-23 李志江 Water-proof lamp string
CN201066051Y (en) * 2007-08-02 2008-05-28 浙江天宇灯饰有限公司 Two-line colorful glistening flexible light belt
CN201093237Y (en) * 2007-08-22 2008-07-30 深圳市瑞丰光电子有限公司 Water-proof lamp strip
CN203823545U (en) * 2014-02-25 2014-09-10 广东德豪润达电气股份有限公司 LED (Light Emitting Diode) flexible lamp strip
CN204313091U (en) * 2014-11-20 2015-05-06 深圳市裕富照明有限公司 The soft bar lamp of LED

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020047516A1 (en) * 2000-10-24 2002-04-25 Tadanobu Iwasa Fluorescent tube
CN1835671A (en) * 2005-03-14 2006-09-20 林项武 Radiator of electronic component
CN201050709Y (en) * 2007-04-28 2008-04-23 李志江 Water-proof lamp string
CN201066051Y (en) * 2007-08-02 2008-05-28 浙江天宇灯饰有限公司 Two-line colorful glistening flexible light belt
CN201093237Y (en) * 2007-08-22 2008-07-30 深圳市瑞丰光电子有限公司 Water-proof lamp strip
CN203823545U (en) * 2014-02-25 2014-09-10 广东德豪润达电气股份有限公司 LED (Light Emitting Diode) flexible lamp strip
CN204313091U (en) * 2014-11-20 2015-05-06 深圳市裕富照明有限公司 The soft bar lamp of LED

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106132079A (en) * 2016-08-29 2016-11-16 广东永创鑫电子有限公司 Flexible circuit board of collapsible moulding a kind of of heat dissipation metal and preparation method thereof
CN106842707A (en) * 2017-03-09 2017-06-13 武汉华星光电技术有限公司 For the LED light bar and backlight assembly of backlight assembly
WO2018161388A1 (en) * 2017-03-09 2018-09-13 武汉华星光电技术有限公司 Led lamp bar for backlight assembly and backlight assembly
US10185077B2 (en) 2017-03-09 2019-01-22 Wuhan China Star Optoelectronics Technology Co., Ltd LED light bar configured in backlight module and backlight module
CN106842707B (en) * 2017-03-09 2019-05-21 武汉华星光电技术有限公司 LED light bar and backlight assembly for backlight assembly
CN107131442A (en) * 2017-06-15 2017-09-05 广州市佛达信号设备有限公司 A kind of soft striation

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Application publication date: 20160615