CN206584928U - A kind of high reliability LED lamp bead based on Zero-ohm resistor - Google Patents
A kind of high reliability LED lamp bead based on Zero-ohm resistor Download PDFInfo
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- CN206584928U CN206584928U CN201720260377.XU CN201720260377U CN206584928U CN 206584928 U CN206584928 U CN 206584928U CN 201720260377 U CN201720260377 U CN 201720260377U CN 206584928 U CN206584928 U CN 206584928U
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- lamp bead
- zero
- ohm resistor
- led lamp
- led
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Abstract
The utility model proposes a kind of high reliability LED lamp bead based on Zero-ohm resistor, the luminescence unit being connected in parallel using several, each luminescence unit includes LED wafer and the Zero-ohm resistor being connected in series, even if indivedual LED wafer failure short circuits, Zero-ohm resistor formation open circuit can be blown, LED lamp bead Integral luminous effect is not interfered with, so as to improve the use reliability and quality index of LED lamp bead, extends the service life of LED lamp bead.
Description
Technical field
The utility model belongs to LED technology field, especially a kind of high reliability LED lamp bead based on Zero-ohm resistor.
Background technology
It is generally acknowledged that the long lifespan of LED lamp bead reaches decades, but actually make the reliability after light fixture and be not so good as anticipation
It is so good, structural manufacturing process of this and LED lamp etc. is closely related.General light fixture has a large amount of LED luminescence units to participate,
These units are connected with serial or parallel connection mode, and problem is in the lamp bead of parallel connection if any a Damage by Short Circuit, whole parallel lamp
Group will not work, equally, if any an open circuit breakage in series connection lamp bead, will also result in whole series lamp group and do not work.By reliability
Theoretical calculation, even if the MTBF (mean free error time) of single led lamp bead is up to decades, and be made up of up to a hundred lamp beads
Light fixture, as long as there is a lamp bead damage, will break down, the MTBF of its light fixture just only has some months, in addition, lamp in parallel
Pearl voltage is identical, and the forward voltage of each lamp bead is not quite similar, and small voltage differences will result in electric current significantly difference,
The acceleration aging of electric current greatly, the small luminous intensity of electric current weakens, and causes dark space, also to make light fitting quality be badly damaged.LED lamp
Reliability and quality are the problems to be thought better of.
The content of the invention
The technical problem that the utility model is solved is to provide a kind of LED lamp bead of high reliability, using several simultaneously
Join the luminescence unit of connection, each luminescence unit includes LED wafer and the Zero-ohm resistor being connected in series, so as to improve LED
The use reliability and quality index of pearl, extend the service life of LED lamp bead.
The technical solution for realizing the utility model purpose is：
A kind of high reliability LED lamp bead based on Zero-ohm resistor, including several luminescence units for being connected in parallel, it is described
Luminescence unit includes LED wafer and the Zero-ohm resistor being connected in series.
Further, the high reliability LED lamp bead of the present utility model based on Zero-ohm resistor, LED wafer and zero ohm
Connected between resistance using gold wire.The quantity of the luminescence unit is at least 2.
Further, the high reliability LED lamp bead of the present utility model based on Zero-ohm resistor, the quantity of luminescence unit expires
It is enough lower condition：N=Ie/ie+1, wherein, N is the quantity of luminescence unit, and Ie is the rated current of lamp bead, and ie is LED wafer
Rated current.
Further, the high reliability LED lamp bead of the present utility model based on Zero-ohm resistor, the number of the luminescence unit
Measure N ∈ [5,50].
The utility model uses above technical scheme compared with prior art, with following technique effect：
1st, the utility model uses LED wafer and Zero-ohm resistor cascaded structure, even if indivedual LED wafer failure short circuits,
Zero-ohm resistor formation open circuit can be blown, LED lamp bead Integral luminous effect is not interfered with；
2nd, luminescence unit of the present utility model is used and is connected in parallel, it is possible to increase the use reliability and quality of LED lamp bead
Index；
3rd, number of wafers selection of the present utility model uses redundancy structure, can effectively extend the service life of LED lamp bead.
Brief description of the drawings
Fig. 1 is LED lamp bead structure chart of the present utility model；
Fig. 2 is the schematic diagram of LED lamp bead inner connecting way one of the present utility model；
Fig. 3 is the schematic diagram of LED lamp bead inner connecting way two of the present utility model.
Reference implication：1：Positive electrode, 2：Negative electrode, 3：Gold wire, 4：LED wafer, 5：Zero-ohm resistor, 6：P-type
Electrode, 7：N-type electrode.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and can not be construed to this practicality
New limitation.
A kind of high reliability LED lamp bead based on Zero-ohm resistor, as shown in figure 1, the hair being connected in parallel including several
Light unit, the quantity of the luminescence unit is at least 2.The luminescence unit includes the LED wafer being connected in series and zero ohm
Resistance, is connected between LED wafer and Zero-ohm resistor using gold wire.The quantity of luminescence unit is met：
N=Ie/ie+1, wherein, N is the quantity of luminescence unit, and Ie is the rated current of lamp bead, and ie is the volume of LED wafer
Determine electric current.Preferably, the quantity N ∈ [5,50] of luminescence unit, luminescence unit quantity is in the range of this, and the reliability of lamp bead is more
It is high.
The quantity N of luminescence unit uses Ie/ie+1 redundant fashion in this programme, stays a standby LED wafer more, when having
Indivedual LED wafers failure open circuits, other LED wafers still can normal luminous, can solve the problem that indivedual LED in luminescence unit in parallel
Wafer failure cause lamp bead can not normal luminous, reduction lamp bead reliability the problem of.When the quantity N of luminescence unit is larger, lamp
The distance between LED wafer very little inside pearl, after the failure of indivedual LED wafers, macroscopically sees that lamp bead will not also be produced significantly
Dark space.
, should when LED wafer fails short circuit using the combination of LED wafer series connection Zero-ohm resistor in luminescence unit
All electric currents of lamp bead will all flow into the failure LED wafer, and the electric current is far longer than the rated current of the LED wafer, now
Electric current blows the Zero-ohm resistor connected with the LED wafer enough so that the luminescence unit forms open circuit, then other luminous
Unit continues normal work, so that lamp bead also can normal work.
In addition, in production management, the turn-on voltage of LED wafer is accurately measured LED wafer and sorted, will be same
Each LED wafer voltage difference of one lamp bead accomplishes to be less than 20mV.
Embodiment 1
A kind of high reliability LED lamp bead based on Zero-ohm resistor, as shown in Fig. 2 including 6 luminous lists being connected in parallel
Member, each luminescence unit includes a LED wafer and a Zero-ohm resistor, is adopted between the LED wafer and Zero-ohm resistor
It is connected in series with gold wire.Between the positive electrode of luminescence unit and the P-type electrode of LED wafer, the N-type electrode of LED wafer and zero
Connected between Ohmic resistance, between the negative electrode of Zero-ohm resistor and luminescence unit using gold wire.If some in lamp bead
When LED wafer failure short circuit, all electric currents of the lamp bead will all flow into the failure LED wafer, and the electric current is far longer than this
The rated current of LED wafer, the Zero-ohm resistor connected with the LED wafer will be blown by then flowing through the electric current of the luminescence unit
Or gold wire so that the luminescence unit forms open circuit, and then the electric current of the lamp bead is assigned to other normal luminous lists again
In member, then other luminescence units continue normal work, and lamp bead also can normal work.
Embodiment 2
A kind of high reliability LED lamp bead based on Zero-ohm resistor, as shown in figure 3, including 12 luminescence units, above-mentioned 12
Individual luminescence unit is divided into two luminous group, and each luminous group includes 6 luminescence units, and 6 luminescence units in the group that lights are used
It is connected in parallel, is connected in parallel again between the group that then lights.Wherein, each luminescence unit includes a LED wafer and zero Europe
Nurse resistance, is connected in series between the LED wafer and Zero-ohm resistor using gold wire.The positive electrode of luminescence unit is brilliant with LED
Between the P-type electrode of piece, between the N-type electrode of LED wafer and Zero-ohm resistor, the negative electrode of Zero-ohm resistor and luminescence unit
Between using gold wire connect.Lamp bead can effectively be reduced by 12 luminescence units are divided into two luminous groups carrying out parallel connection again
Length, reduces the volume of lamp bead.
Described above is only some embodiments of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvement can also be made, these improvement should be regarded as this
The protection domain of utility model.
Claims (5)
1. a kind of high reliability LED lamp bead based on Zero-ohm resistor, it is characterised in that including lighting that several are connected in parallel
Unit, the luminescence unit includes LED wafer and the Zero-ohm resistor being connected in series.
2. the high reliability LED lamp bead according to claim 1 based on Zero-ohm resistor, it is characterised in that LED wafer and
Connected between Zero-ohm resistor using gold wire.
3. the high reliability LED lamp bead according to claim 1 based on Zero-ohm resistor, it is characterised in that described luminous
The quantity of unit is at least 2.
4. the high reliability LED lamp bead based on Zero-ohm resistor according to claim 1 or 3, it is characterised in that luminous single
The quantity of member meets following condition：N=Ie/ie+1, wherein, N is the quantity of luminescence unit, and Ie is the rated current of lamp bead, ie
For the rated current of LED wafer.
5. the high reliability LED lamp bead according to claim 4 based on Zero-ohm resistor, it is characterised in that described luminous
The quantity N ∈ [5,50] of unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260377.XU CN206584928U (en) | 2017-03-17 | 2017-03-17 | A kind of high reliability LED lamp bead based on Zero-ohm resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260377.XU CN206584928U (en) | 2017-03-17 | 2017-03-17 | A kind of high reliability LED lamp bead based on Zero-ohm resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206584928U true CN206584928U (en) | 2017-10-24 |
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ID=60114335
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720260377.XU Active CN206584928U (en) | 2017-03-17 | 2017-03-17 | A kind of high reliability LED lamp bead based on Zero-ohm resistor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847799A (en) * | 2017-03-17 | 2017-06-13 | 南京养元素电子科技有限公司 | A kind of high reliability LED lamp bead based on Zero-ohm resistor |
| CN108601157A (en) * | 2018-06-21 | 2018-09-28 | 南京养元素电子科技有限公司 | A kind of white light LEDs lamp bead based on RGB three primary colours chips |
-
2017
- 2017-03-17 CN CN201720260377.XU patent/CN206584928U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847799A (en) * | 2017-03-17 | 2017-06-13 | 南京养元素电子科技有限公司 | A kind of high reliability LED lamp bead based on Zero-ohm resistor |
| CN108601157A (en) * | 2018-06-21 | 2018-09-28 | 南京养元素电子科技有限公司 | A kind of white light LEDs lamp bead based on RGB three primary colours chips |
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