CN203327346U - LED illuminating light string - Google Patents
LED illuminating light string Download PDFInfo
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- CN203327346U CN203327346U CN2013204675204U CN201320467520U CN203327346U CN 203327346 U CN203327346 U CN 203327346U CN 2013204675204 U CN2013204675204 U CN 2013204675204U CN 201320467520 U CN201320467520 U CN 201320467520U CN 203327346 U CN203327346 U CN 203327346U
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Abstract
The utility model discloses an LED illuminating light string, comprising a driving power source and at least one illuminating branch, wherein the illuminating branch is parallely connected between positive and negative electrodes of the driving power source. Each illuminating branch comprises a plurality of LED light beads, a plurality of current-limiting resistors and a plurality of voltage-stabilizing diodes. The current-limiting resistors and the voltage-stabilizing diodes of each illuminating branch are serially connected to form a current-limiting circuit, and two ends of the current-limiting circuit are respectively connected with the positive electrode and the negative electrode of the driving power source. Two ends of each current-limiting resistor and each voltage-stabilizing diode are parallely connected with illuminating units which are formed by serial connection of at least two LED light beads. When a certain LED light bead of the LED illuminating light string is damaged, current flows through the current-limiting resistor or the voltage-stabilizing diode that is parallely connected with the damaged LED light bead, thereby causing no effect on the other illuminating units. In this way, not only is the problem solved that overall conventional LED illuminating light strings do not shine if one LED light bead is damaged, but also the problems are solved that electric power is wasted due to too many current-limiting resistors in one circuit and too large loss and the service lifetime of LED beads is affected by generated heat.
Description
Technical field
The utility model relates to a kind of illuminating lamp, particularly a kind of LED illuminating light string.
Background technology
That the LED illuminating light string has is energy-conservation, rich color, long service life, the advantage such as pollution-free.Along with the implementation of national energy-saving reduction of discharging policy, the LED illuminating light string has been come into huge numbers of families, has become one of current most popular semiconductor light sources, and the growth momentum that replaces conventional light source is arranged greatly.Because the power of single LED lamp pearl is difficult to accomplish very large, therefore, the series connection of a plurality of LED lamp of available technology adopting pearl realizes, and be in series with current-limiting resistance in the lamp string, if and current-limiting resistance or a LED lamp pearl burn out, whole lamp string is opened a way, can not light, cause whole LED lamp to be scrapped, for this reason, China Patent No. is " ZL200720054739.6 ", Granted publication number is " CN201074741Y ", the utility model patent that name is called " a kind of LED lighting circuit " discloses a kind of LED illuminating light string, the technical scheme that this illuminating lamp adopts is to comprise the power circuit connected in turn, load circuit, current-limiting circuit, described load circuit one is comprised of at least one group of LED lamp string, the head end of described LED lamp string is connected with power circuit, the tail end of LED lamp string is connected with current-limiting resistance, two ends on each LED lamp pearl at least are parallel with a current-limiting resistance, when in LED lamp string, certain LED lamp pearl damages, electric current will be in parallel from it current-limiting resistance and LED lamp pearl flow through, other LED lamp pearls still can be worked, do not have influence on whole LED lamp string, solve a LED lamp pearl and damaged the whole group of problem that LED lamp string does not work caused.Because LED lamp pearl self also has internal resistance, although the internal resistance of single LED lamp pearl is little more a lot of than the current-limiting resistance in parallel with it, but in current-limiting resistance, still there is small electric current to flow through, loss on current-limiting resistance must cause the waste of electric energy like this, and after the LED lamp pearl in parallel with it burn out, electric current in the lamp string will flow through from this resistance, and the increase of current-limiting resistance electric current also certainly will cause loss increase and caloric value to increase.The number of resistance more (the resistance number is identical with LED lamp pearl) in above-mentioned patent circuit, natural wastage is also large, and the resistance self-heating produces loss, and can make the temperature of lamp string increase, affect the life-span of LED lamp pearl.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of LED illuminating light string of simple in structure, stable performance.
The utility model solves the technical scheme that its technical problem adopts:
A kind of LED illuminating light string, comprise driving power and be connected in parallel at least one lighting sub loop between the driving power both positive and negative polarity, described every lighting sub loop comprises some LED lamp pearls, some current-limiting resistances and some voltage stabilizing didoes, the current-limiting resistance of described every lighting sub loop and voltage stabilizing didoe interval are connected into current-limiting circuit, the two ends of described current-limiting circuit connect respectively positive pole and the negative pole of driving power, and the two ends of described each current-limiting resistance and voltage stabilizing didoe all are parallel with by least two LED lamp pearls lighting unit formed in parallel.
As further improvement of the utility model, in described each lighting unit, LED lamp pearl is 3-8.
The beneficial effects of the utility model are: the two ends of each current-limiting resistance of the present utility model and voltage stabilizing didoe all are parallel with by least two LED lamp pearls lighting unit formed in parallel, when in LED lamp string, certain LED lamp pearl damages, electric current will be in parallel from it current-limiting resistance and LED lamp pearl flow through, can not affect other lighting unit, not only solve a LED lamp pearl and damaged the problem that the whole LED lamp string that causes does not work, and it is too much to have solved in circuit current-limiting resistance, loss is excessive, causes the problem in heat effects LED lamp pearl useful life of waste of energy and generation.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to Fig. 1, a kind of LED illuminating light string, comprise driving power 1 and be connected in parallel at least one lighting sub loop 2 between driving power 1 both positive and negative polarity.Described every lighting sub loop 2 comprises some LED lamp pearl D1, some current-limiting resistance R and voltage stabilizing didoe D2, the current-limiting resistance R of described every lighting sub loop 2 and the series connection of voltage stabilizing didoe D2 interval form current-limiting circuit, the two ends of described current-limiting circuit connect respectively positive pole and the negative pole of driving power 1, the two ends of described each current-limiting resistance R and voltage stabilizing didoe D2 all are parallel with the lighting unit formed in parallel by least two LED lamp pearl D, and in this lighting unit, LED lamp pearl quantity is suitably 3-8.
The two ends of each current-limiting resistance of the present utility model and voltage stabilizing didoe all are parallel with by least two LED lamp pearls lighting unit formed in parallel, when in LED lamp string, certain LED lamp pearl damages, electric current will be in parallel from it current-limiting resistance and LED lamp pearl flow through, can not affect other lighting unit, not only solve a LED lamp pearl and damaged the problem that the whole LED lamp string that causes does not work, and it is too much to have solved in circuit current-limiting resistance, loss is excessive, causes the problem in heat effects LED lamp pearl useful life of waste of energy and generation.
Claims (2)
1. a LED illuminating light string, comprise driving power and be connected in parallel at least one lighting sub loop between the driving power both positive and negative polarity, described every lighting sub loop comprises some LED lamp pearls, some current-limiting resistances and voltage stabilizing didoe, the current-limiting resistance and the voltage stabilizing didoe series connection that it is characterized in that described every lighting sub loop form current-limiting circuit, the two ends of described current-limiting circuit connect respectively positive pole and the negative pole of driving power, and the two ends of described each current-limiting resistance and voltage stabilizing didoe all are parallel with by least two LED lamp pearls lighting unit formed in parallel.
2. LED illuminating light string according to claim 1, is characterized in that in described each lighting unit, LED lamp pearl is 3-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204675204U CN203327346U (en) | 2013-07-26 | 2013-07-26 | LED illuminating light string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204675204U CN203327346U (en) | 2013-07-26 | 2013-07-26 | LED illuminating light string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203327346U true CN203327346U (en) | 2013-12-04 |
Family
ID=49666635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204675204U Expired - Fee Related CN203327346U (en) | 2013-07-26 | 2013-07-26 | LED illuminating light string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203327346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104023449A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | Driving circuit of arrow-head-shaped traffic lights |
| CN105657917A (en) * | 2016-04-06 | 2016-06-08 | 江苏启日能源科技有限公司 | Multiple parallel connection redundancy LED light source module circuit |
-
2013
- 2013-07-26 CN CN2013204675204U patent/CN203327346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104023449A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | Driving circuit of arrow-head-shaped traffic lights |
| CN105657917A (en) * | 2016-04-06 | 2016-06-08 | 江苏启日能源科技有限公司 | Multiple parallel connection redundancy LED light source module circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140726 |
|
| EXPY | Termination of patent right or utility model |