CN101986009A - Adaptive alternating current light-emitting diode filament and illuminating lamp - Google Patents
Adaptive alternating current light-emitting diode filament and illuminating lamp Download PDFInfo
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- CN101986009A CN101986009A CN2010105274438A CN201010527443A CN101986009A CN 101986009 A CN101986009 A CN 101986009A CN 2010105274438 A CN2010105274438 A CN 2010105274438A CN 201010527443 A CN201010527443 A CN 201010527443A CN 101986009 A CN101986009 A CN 101986009A
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Abstract
The invention provides an adaptive alternating current light-emitting diode (LED) filament and an illuminating lamp. The adaptive alternating current LED filament contains two parallel lines of LED modules, wherein the LED modules in two lines have opposite conduction directions; each LED module is prepared by firstly connecting a zener diode with an adaptive LED in series and then connecting the series branch with a main LED in parallel. The invention also provides an LED illuminating lamp using the filament. As the zener diode is firstly connected with the adaptive LED in series and then connected with the main LED in parallel, when a main LED in one group is broken, the series branch which is connected with the main LED in series can provide access; and although the broken main LED can not give off light, the zener diode in the series branch can be turned on, the adaptive LED can work continuously and normally to replace the main LED and the other main LEDs which are connected with the main LED can still work continuously without affecting the whole circuit.
Description
Technical field
The present invention relates to the LED lighting apparatus, be specifically related to a kind of standby type AC LED filament and illuminating lamp.
Background technology
Traditional AC LED lamp, as shown in Figure 1, after the light emitting diode inverse parallel that two row series connection quantity are equal, directly use the power frequency AC-powered, can save dc source and drive, reduce cost, in addition because alternating current makes this two row light emitting diode alternate conduction, thereby make it have the regular hour to reduce junction temperature of light emitting diode, improve lifetime of LED, thereby improve lamp life.But there is such problem in this circuit, in case a light-emitting diode open-circuit in any row in the inverse parallel lost efficacy, will cause whole loop to be lost efficacy, and crash rate is single led several times, and multiple is series connection progression.Fig. 2 is a kind of modified AC LED structure, when the LED of sense of current lamp open circuit damages, the LED of these other series connection of direction is by the LED reverse leakage current conducting of another sense of current, and obviously because the LED reverse leakage current is very little, the luminosity of LED is restricted.Therefore also need better scheme for the reliability that improves integrated circuit.
In order to address the above problem, the present invention can provide a kind of standby type AC LED filament, as shown in Figure 3, realizes directly that by the circuit that designs a kind of LED of change connection the electrical network industrial frequency AC drives.
Summary of the invention
The objective of the invention is to overcome the deficiency that the problems referred to above bring, a kind of standby type AC LED filament and illuminating lamp are provided, the present invention is achieved through the following technical solutions.
A kind of standby type AC LED filament comprises the opposite light-emitting diode (LED) module row of two row conducting directions that are connected in parallel, and each light-emitting diode (LED) module is listed as by several identical light-emitting diode (LED) modules of quantity and is in series; Each light-emitting diode (LED) module is formed in parallel with primary LED after being connected by a same standby light emitting diode of Zener diode again.
In addition, in the above-mentioned standby type AC LED filament, in the described light-emitting diode (LED) module, the anode of Zener diode connects with the anode of standby light emitting diode; The negative electrode of Zener diode links to each other with the anode of primary LED, and this end points is the anode of light-emitting diode (LED) module; The negative electrode of standby light emitting diode links to each other with the negative electrode of primary LED, and this end points is the negative terminal of light-emitting diode (LED) module.
Described standby light emitting diode can comprise more than one light emitting diode; Described primary LED can comprise more than one light emitting diode.
The present invention also provides a kind of AC LED lighting lamp, comprises ac input end and is connected AC LED filament between the ac input end, and described AC LED filament is the standby type AC LED filament.
Compared with prior art, advantage of the present invention and beneficial effect are:
After adopting the series connection earlier of Zener diode and standby light emitting diode, be connected in parallel on above the primary LED again: in case wherein one group some main LED has opened circuit, the series arm that is connected in parallel on above it provides path for it, main LED was no longer luminous although should lose efficacy, Zener diode on the series arm is with conducting, standby LED will substitute main LED and continue operate as normal, and other main LED that connect with main LED still can work on, and integrated circuit is not exerted an influence.
Description of drawings
Fig. 1 is conventional AC LED filament connecting circuit figure.
Fig. 2 improves back AC LED filament connecting circuit figure through Fig. 1.
Fig. 3 is a kind of standby type AC LED filament of embodiment of the present invention.
Fig. 4 is a kind of AC LED lighting lamp that a kind of standby type AC LED filament shown in Figure 3 is formed.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described, but enforcement of the present invention and protection domain are not limited thereto.
Fig. 1 is conventional AC LED filament connecting circuit figure.There is such problem in this circuit, in case a light-emitting diode open-circuit in any row in the inverse parallel lost efficacy, will cause whole loop to be lost efficacy, and crash rate is single led several times, and multiple is series connection progression.
Fig. 2 after improving through Fig. 1, adopts latticed array structure to damage AC LED filament connecting circuit figure with the open circuit of tackling indivedual LED in the LED of same sense of current lamp.
Fig. 3 is a kind of circuit diagram of standby type AC LED filament, comprise the opposite light-emitting diode (LED) module row (1 and 2) of two row conducting directions that are connected in parallel, be different from general light emitting diode, each light-emitting diode (LED) module by 5 same standby light emitting diode 4 series connection of a Zener diode, is formed in parallel series arm and primary LED 3 earlier again.
Fig. 4 has provided a kind of AC LED lighting lamp of embodiment of the present invention, comprises ac input end AC, capacitor C and is connected AC LED filament between the ac input end, and described AC LED filament adopts the structure described in Fig. 3.Capacitor C wherein has the dividing potential drop effect, in addition, and when parameter selects can play when appropriate the effect of current limliting.
Operation principle: after adopting the series connection earlier of Zener diode and standby light emitting diode, be connected in parallel on above the primary LED again: in case wherein one group some main LED has opened circuit, the series arm that is connected in parallel on above it provides path for it, main LED was no longer luminous although should lose efficacy, Zener diode on the series arm is with conducting, standby LED will substitute main LED and continue operate as normal, and other main LED that connect with main LED still can work on, and integrated circuit is not exerted an influence.
Claims (5)
1. a standby type AC LED filament comprises the opposite light-emitting diode (LED) module row (1,2) of two row conducting directions that are connected in parallel, and it is characterized in that: each light-emitting diode (LED) module is listed as by several identical light-emitting diode (LED) modules of quantity and is in series; Each light-emitting diode (LED) module is formed in parallel with primary LED (3) after by the series connection of a Zener diode (5) and standby light emitting diode (4) again.
2. a kind of standby type AC LED filament according to claim 1 is characterized in that: in the light-emitting diode (LED) module, the anode of Zener diode (5) connects with the anode of standby light emitting diode (4); The anode of the same primary LED of negative electrode (3) of Zener diode (5) links to each other, and this end points is the anode of light-emitting diode (LED) module; The negative electrode of the same primary LED of negative electrode (3) of standby light emitting diode (4) links to each other, and this end points is the negative terminal of light-emitting diode (LED) module.
3. a kind of standby type AC LED filament according to claim 1 is characterized in that described standby light emitting diode (4) comprises more than one light emitting diode.
4. according to each described a kind of standby type AC LED filament of claim 1 ~ 3, it is characterized in that described primary LED comprises more than one light emitting diode.
5. AC LED lighting lamp comprises ac input end and is connected AC LED filament between the ac input end that it is characterized in that: described AC LED filament is the described standby type AC LED filament of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105274438A CN101986009A (en) | 2010-11-02 | 2010-11-02 | Adaptive alternating current light-emitting diode filament and illuminating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105274438A CN101986009A (en) | 2010-11-02 | 2010-11-02 | Adaptive alternating current light-emitting diode filament and illuminating lamp |
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| Publication Number | Publication Date |
|---|---|
| CN101986009A true CN101986009A (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105274438A Pending CN101986009A (en) | 2010-11-02 | 2010-11-02 | Adaptive alternating current light-emitting diode filament and illuminating lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070759A1 (en) * | 2014-11-06 | 2016-05-12 | 常君斌 | Ecological illumination led device |
| CN107191798A (en) * | 2017-06-21 | 2017-09-22 | 海迪科（南通）光电科技有限公司 | A kind of novel high-pressure LED filament lamp |
| CN113671752A (en) * | 2021-08-19 | 2021-11-19 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000150963A (en) * | 1998-11-04 | 2000-05-30 | Nippon Signal Co Ltd:The | Light emitting circuit, light emitting element and light emitting device |
| CN1683820A (en) * | 2005-03-04 | 2005-10-19 | 吕大明 | AC LED lighting lamp |
| CN1811265A (en) * | 2006-02-28 | 2006-08-02 | 周维平 | Festoon lighting |
| JP2007165161A (en) * | 2005-12-15 | 2007-06-28 | Sharp Corp | Led illumination device, led backlight device, and image display device |
| CN201827728U (en) * | 2010-11-02 | 2011-05-11 | 华南理工大学 | Standby alternating-current LED (light emitting diode) lamp filament and illuminating lamp |
-
2010
- 2010-11-02 CN CN2010105274438A patent/CN101986009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000150963A (en) * | 1998-11-04 | 2000-05-30 | Nippon Signal Co Ltd:The | Light emitting circuit, light emitting element and light emitting device |
| CN1683820A (en) * | 2005-03-04 | 2005-10-19 | 吕大明 | AC LED lighting lamp |
| JP2007165161A (en) * | 2005-12-15 | 2007-06-28 | Sharp Corp | Led illumination device, led backlight device, and image display device |
| CN1811265A (en) * | 2006-02-28 | 2006-08-02 | 周维平 | Festoon lighting |
| CN201827728U (en) * | 2010-11-02 | 2011-05-11 | 华南理工大学 | Standby alternating-current LED (light emitting diode) lamp filament and illuminating lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070759A1 (en) * | 2014-11-06 | 2016-05-12 | 常君斌 | Ecological illumination led device |
| CN107191798A (en) * | 2017-06-21 | 2017-09-22 | 海迪科（南通）光电科技有限公司 | A kind of novel high-pressure LED filament lamp |
| CN113671752A (en) * | 2021-08-19 | 2021-11-19 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate and display device |
| CN113671752B (en) * | 2021-08-19 | 2024-02-02 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate and display device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| 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: 20110316 |