CN201351888Y - A light-emitting diode light source module and constant current unit structure thereof - Google Patents
A light-emitting diode light source module and constant current unit structure thereof Download PDFInfo
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- CN201351888Y CN201351888Y CNU2009200038342U CN200920003834U CN201351888Y CN 201351888 Y CN201351888 Y CN 201351888Y CN U2009200038342 U CNU2009200038342 U CN U2009200038342U CN 200920003834 U CN200920003834 U CN 200920003834U CN 201351888 Y CN201351888 Y CN 201351888Y
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Abstract
The utility model relates to a light-emitting diode light source module and a constant current unit structure thereof. A light-emitting diode light source module comprises a constant current unit, a resistance and a light-emitting diode group, wherein the constant current unit is provided with a stabilized voltage unit, and the stabilized voltage unit is composed of an input end, a first output end and a second output end, the input end can receive a direct current voltage, and the first output end can output a constant current, the resistance can be connected in parallel between the first output end and the second output end, and the light-emitting diode group is electrically connected with the first output end. By implementing the utility model, the stable constant current can be output by the constant current unit when the direct current voltage changes, thereby enabling the light-emitting diode group to stably emit lights, and avoiding the damage of the light-emitting diode group caused by overcurrent.
Description
Technical field
The utility model relates to a kind of LED light-source module and constant current unit structure thereof, particularly relates to a kind of LED light-source module and constant current unit structure thereof that is applied in the led lamp.
Background technology
Fig. 1 is the circuit structure diagram of existing known LED light-source module.See also shown in Figure 1ly, existing known LED light-source module 10 comprise most luminescence units 11, and each luminescence unit 11 is all parallel with one another with a direct current voltage source 12.Have a resistance 111 and most light emitting diodes 112 in each luminescence unit 11 again, and light emitting diode 112 and resistance 111 is mutual series connection, and then makes light emitting diode 112 can receive the DC voltage of direct voltage source 12 outputs and conducting is luminous.
As shown in Figure 1, when the magnitude of voltage of being imported when direct voltage source 12 is stablized, can utilize the size of current of the resistance 111 control conducting light emitting diodes 112 of connecting, and can reach the effect of deciding electric current output, so that light emitting diode 112 can stabilized illumination with light emitting diode 112.
But, when the magnitude of voltage of direct voltage source 12 outputs takes place to change a little, will influence the electric current that inputs to luminescence unit 11 significantly change takes place, and then produce unsettled electric current, and influence the luminosity of light emitting diode 112 in the luminescence unit 11, and make light emitting diode 112 may produce flickering situation, and can influence the heat energy instability that light emitting diode 112 produces, and then may shorten the service life of light emitting diode 112.
This shows that above-mentioned existing LED light-source module and constant current unit structure thereof obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore the LED light-source module and the constant current unit structure thereof of how to found a kind of new structure belongs to one of current important research and development problem in fact, and also becoming the current industry utmost point needs improved target.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing LED light-source module and constant current unit structure thereof exist, and provide a kind of LED light-source module and constant current unit structure thereof of new structure, the technical problem that solves is to make its magnitude of voltage that makes input by constant current unit when taking place to change a little, also can stablize and export the identical electric current of deciding, and then reach the effect that makes the light emitting diode stabilized illumination, be very suitable for practicality.
The purpose of this utility model is, overcome the defective that existing LED light-source module and constant current unit structure thereof exist, and provide a kind of LED light-source module and constant current unit structure thereof of new structure, the technical problem that solves is to make it make the electric current of output can continue to maintain in the safe current scope that light emitting diode can bear by constant current unit, and then reach the effect of avoiding light emitting diode to damage, thereby be suitable for practicality more because of overcurrent.
The purpose of this utility model is, overcome the defective that existing LED light-source module and constant current unit structure thereof exist, and provide a kind of LED light-source module and constant current unit structure thereof of new structure, the technical problem that solves is to make it by resistance being parallel between the output of voltage regulation unit, reach the effect of deciding electric current output by this, thereby be suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of LED light-source module that the utility model proposes, it comprises: a constant current unit, its cording has: a voltage regulation unit, it has an input, one first output and one second output, wherein this input receives a direct current voltage, and this first output is exported certain electric current; And a resistance, it is parallel between this first output and this second output; And a light emitting diode group, it is electrically connected at this first output.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid LED light-source module, wherein said light emitting diode group has single light emitting diode.
Aforesaid LED light-source module, wherein said light emitting diode group have most light emitting diodes, and those light emitting diodes are connected mutually.
Aforesaid LED light-source module, wherein said light emitting diode group have most series connection light emitting diode groups, and those series connection light emitting diode groups are parallel with one another.
Aforesaid LED light-source module, it further has an ac/dc rectification unit, and it is converted to this DC voltage with an alternating voltage.
The purpose of this utility model and solve its technical problem and also realize by the following technical solutions.Constant current unit structure according to a kind of LED light-source module that the utility model proposes, it comprises: a constant current unit, it has: a voltage regulation unit, it has an input, one first output and one second output, wherein this input receives a direct current voltage, and this first output is exported certain electric current; And a resistance, it is to be parallel between this first output and this second output.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present utility model thes contents are as follows:
In order to achieve the above object, the utility model provides a kind of LED light-source module, it comprises: a constant current unit, it has: a voltage regulation unit, it has an input, one first output and one second output, wherein input receives a direct current voltage, and first output is exported certain electric current; And a resistance, it is parallel between first output and second output; And a light emitting diode group, it is to be electrically connected at first output.
In addition, in order to achieve the above object, the utility model also provides a kind of constant current unit structure of LED light-source module, it comprises: a constant current unit, it has: a voltage regulation unit, it has an input, one first output and one second output, and wherein input receives a direct current voltage, and first output is exported certain electric current; And a resistance, it is parallel between first output and second output.
By technique scheme, the utility model LED light-source module and constant current unit structure thereof have following advantage and beneficial effect at least:
1, the utility model makes the light emitting diode group can reach the effect of stabilized illumination by the setting of constant current unit.
2, therefore the utility model can avoid the light emitting diode group to damage because of overcurrent because constant current unit can be exported stable electric current.
3, the utility model can not change along with the change a little of DC voltage so that input to the electric current of light emitting diode group by the setting of constant current unit.
4, the utility model is decided the effect that electric current is exported by between two outputs that resistance are parallel to voltage regulation unit and reach.
In sum, the utility model relates to a kind of LED light-source module and constant current unit structure thereof, and wherein LED light-source module comprises: constant current unit; And light emitting diode group.Constant current unit has voltage regulation unit and resistance, and resistance is to be parallel between two outputs of voltage regulation unit.The input of constant current unit is in order to receiving DC voltage, and decide electric current in output output, and the light emitting diode group is the output that is electrically connected at constant current unit, and receive that constant current unit exports decide electric current and then conducting light emitting diode group.By enforcement of the present utility model, when the DC voltage change, still can export the stable electric current of deciding, and then make light emitting diode group stabilized illumination, and can avoid the light emitting diode group to damage because of overcurrent by constant current unit.The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the circuit structure diagram of existing known LED light-source module.
Fig. 2 is the first preferable enforcement state diagram of a kind of LED light-source module of the present utility model.
Fig. 3 is the second preferable enforcement state diagram of a kind of LED light-source module of the present utility model.
Fig. 4 is the 3rd preferable enforcement state diagram of a kind of LED light-source module of the present utility model.
Fig. 5 is the 4th preferable enforcement state diagram of a kind of LED light-source module of the present utility model.
10: existing known LED light-source module 11: luminescence unit
111: resistance 112: light emitting diode
12: direct voltage source 20: LED light-source module
30: constant current unit 31: voltage regulation unit
311: 312: the first outputs of input
40: light emitting diode group 41: light emitting diode
42: series connection light emitting diode group 50: ac/dc rectification unit
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to LED light-source module and its specific embodiment of constant current unit structure, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the detailed description of graphic preferred embodiment is consulted in following cooperation.Explanation by the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Fig. 2 is the first preferable enforcement state diagram of a kind of LED light-source module of the present utility model.Fig. 3 is the second preferable enforcement state diagram of a kind of LED light-source module of the present utility model.Fig. 4 is the 3rd preferable enforcement state diagram of a kind of LED light-source module of the present utility model.Fig. 5 is the 4th preferable enforcement state diagram of a kind of LED light-source module of the present utility model.
See also shown in Figure 2, a kind of LED light-source module 20 of the utility model preferred embodiment, it comprises: a constant current unit 30; An and light emitting diode group 40.
Above-mentioned constant current unit 30, it has: a voltage regulation unit 31; An and resistance 32.
This voltage regulation unit 31, it can be for being used for the integrated circuit of power management, and exportable stable voltage.Voltage regulation unit 31 has an input 311, one first output 312 and one second output 313, and input 311 can be in order to receive a direct current voltage, and how the size of the DC voltage of no matter importing changes, all can export stable voltage by the effect of voltage regulation unit 31, wherein first output 312 of voltage regulation unit 31 can be a negative supply voltage end (Vss), and second output 313 can be a positive voltage end (Vout).
This resistance 32, it is parallel to 313 of first output 312 of voltage regulation unit 31 and second outputs, and because voltage regulation unit 31 exportable stable voltages, therefore can be by selecting resistance 32 with appropriate resistance, make the voltage difference between first output 312 and second output 313 be converted to certain electric current, and by 312 outputs of first output.
Above-mentioned light emitting diode group 40, it is first output 312 that is electrically connected at constant current unit 30, and receives the electric current of deciding by constant current unit 30 outputs.When operating light-emitting diodes (leds) light source module 20, even being input into the DC voltage of constant current unit 30 changes to some extent, for example specification is 24 volts a DC voltage, when it moves within narrow limits to 22 volts or change during to 26 volts by 24 volts, constant current unit 30 all exportable identical size decide electric current to light emitting diode group 40, but and then make light emitting diode group 40 stabilized illuminations, and can increase the service life of light emitting diode group 40.
See also shown in Figure 2, can have single light emitting diode 41 in the light emitting diode group 40, or as shown in Figure 3, in order to cooperate different user demands, light emitting diode group 40 also can have most light emitting diodes 41, and connect each other between the light emitting diode 41, can further improve the luminosity of light emitting diode group 40 by this.
In addition, see also shown in Figure 4, light emitting diode group 40 also can have most series connection light emitting diode groups 42, and comprises most the light emitting diodes 41 of series connection mutually in each series connection light emitting diode group 42, and also electrically connects mutually with parallel way between the series connection light emitting diode group 42.
See also Fig. 2 to shown in Figure 4, generally can directly use a direct current voltage source 12 so that DC voltage to be provided, and then drive LED light-source module 20.Or as shown in Figure 5, in order to utilize alternating-current voltage source to drive LED light-source module 20, LED light-source module 20 can further have an ac/dc rectification unit 50 again, ac/dc rectification unit 50 can be in order to receive an alternating voltage, and via 50 effects of ac/dc rectification unit, alternating voltage is converted to DC voltage, and the DC voltage after the conversion is then in order to input in the constant current unit 30, in order to conducting light emitting diode group 40.
Extremely shown in Figure 5 as Fig. 2, a plurality of LED light-source modules 20 in parallel simultaneously again, improve whole brightness by this, even wherein there is any LED light-source module 20 to be damaged, constant current unit 30 in other LED light-source modules 20 also can make the electric current that inputs to light emitting diode group 40 remain unchanged, and electric current is remained in the safe current scope that light emitting diode group 40 can bear, and then light emitting diode group 40 can not suffered damage because of the electric current flip-flop of input.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (6)
1, a kind of LED light-source module is characterized in that it comprises:
One constant current unit, it has:
One voltage regulation unit, it has an input, one first output and one second output, and wherein this input receives a direct current voltage, and this first output is exported certain electric current; And
One resistance, it is parallel between this first output and this second output; And
One light emitting diode group, it is electrically connected at this first output.
2, LED light-source module as claimed in claim 1 is characterized in that wherein said light emitting diode group has single light emitting diode.
3, LED light-source module as claimed in claim 1 it is characterized in that wherein said light emitting diode group has most light emitting diodes, and those light emitting diodes is connected mutually.
4, LED light-source module as claimed in claim 1 it is characterized in that wherein said light emitting diode group has most series connection light emitting diode groups, and those series connection light emitting diode groups is parallel with one another.
5, LED light-source module as claimed in claim 1 is characterized in that it further has an ac/dc rectification unit, and it is converted to this DC voltage with an alternating voltage.
6, a kind of constant current unit structure of LED light-source module is characterized in that it comprises:
One constant current unit, it has: a voltage regulation unit, it has an input, one first output and one second output, and wherein this input receives a direct current voltage, and this first output is exported certain electric current; And
One resistance, it is parallel between this first output and this second output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200038342U CN201351888Y (en) | 2009-02-06 | 2009-02-06 | A light-emitting diode light source module and constant current unit structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200038342U CN201351888Y (en) | 2009-02-06 | 2009-02-06 | A light-emitting diode light source module and constant current unit structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201351888Y true CN201351888Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200038342U Expired - Fee Related CN201351888Y (en) | 2009-02-06 | 2009-02-06 | A light-emitting diode light source module and constant current unit structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883765A (en) * | 2014-02-27 | 2015-09-02 | 睿腾光电科技股份有限公司 | Light source apparatus with light-emitting diode module |
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2009
- 2009-02-06 CN CNU2009200038342U patent/CN201351888Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883765A (en) * | 2014-02-27 | 2015-09-02 | 睿腾光电科技股份有限公司 | Light source apparatus with light-emitting diode module |
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| 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: 20091125 Termination date: 20180206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |