CN205090206U - Light power supply module and lighting device - Google Patents
Light power supply module and lighting device Download PDFInfo
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- CN205090206U CN205090206U CN201520861973.4U CN201520861973U CN205090206U CN 205090206 U CN205090206 U CN 205090206U CN 201520861973 U CN201520861973 U CN 201520861973U CN 205090206 U CN205090206 U CN 205090206U
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- light emitting
- source assembly
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Abstract
The embodiment of the utility model discloses light power supply module and lighting device, through setting up light emitting source and drive module on same circuit substrate, for the light emitting source with be used for the drive module who transmits electric current to light emitting source to be located different circuit substrates respectively, can reduce light power supply module's size, and then can reduce accommodating space's in the lighting device size, realize reducing lighting device's size to the miniaturized development trend of the current lighting device of adaptation.
Description
Technical field
The utility model relates to lighting technical field, particularly a kind of photoelectric source assembly and lighting device.
Background technology
Along with the continuous extension of lighting engineering is expanded, under the prerequisite ensureing illumination capability, lighting device is also more and more miniaturized.Existing lighting device is prepared for ease of modularization, the general scheme adopting photodetachment, i.e. light emitting source and lay respectively at different circuit substrates for delivered current to the driver module of light emitting source.But, due to two pieces of circuit substrates at lighting device domestic demand storage light-emitting source and driver module place, make lighting device domestic demand that larger-size receiving space is set, cause the oversize of such lighting device, and the development trend when front lighting device miniaturization cannot be adapted to.
Utility model content
The object of the utility model embodiment is to provide a kind of photoelectric source assembly, and it is less that its size can control.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of photoelectric source assembly, and it comprises:
Light emitting source;
Driver module, is electrically connected with described light emitting source, for transmitting supply current to described light emitting source;
Circuit substrate, described light emitting source and driving power are all positioned on described circuit substrate.
Preferably, the described driver module single-stage Buck chip that comprises the electric current acquiring unit for obtaining supply current and be connected between described electric current acquiring unit and light emitting source.
Preferably, described driver module comprises the power circuit be connected between described single-stage Buck chip and described light emitting source, and described power circuit comprises power inductance, and described power inductance is I-shaped inductance.
Preferably, described circuit substrate comprises the via hole being positioned at described light emitting source week side, and described via hole runs through described circuit substrate, and the internal face of described via hole is coated with heat dissipating layer.
Preferably, the aperture of described via hole is between 0.2 to 0.5 millimeter.
Preferably, described light emitting source is LED light source, and the spacing between the negative pole of described via hole and described LED light source is less than predeterminable range.
Preferably, described circuit substrate comprises the first surface and the second surface relative with described first surface that are provided with described light emitting source, and described second surface is coated with heat dissipating layer, and on described second surface, in heat dissipating layer and described via hole, heat dissipating layer connects as one.
Preferably, described photoelectric source assembly is used for Down lamp, and described driver module comprises plug-in type element and SMD element, and described SMD element is positioned at described first surface, and described plug-in type element is positioned at described second surface.
Preferably, described photoelectric source assembly is used for shot-light, and described driver module comprises plug-in type element and SMD element, and described SMD element and plug-in type element are all positioned at described second surface.
The object of the utility model embodiment is to provide a kind of lighting device, and it is less that its size can control.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of lighting device, comprising:
Housing;
Photoelectric source assembly as described in aforementioned utility model content, described photoelectric source assembly is arranged at described housing;
External power source, is electrically connected with described photoelectric source assembly.
The technical scheme provided from above the utility model embodiment, in the utility model embodiment by by light emitting source and drive module setting on same circuit substrate, different circuit substrates is laid respectively at relative to light emitting source with for delivered current to the driver module of light emitting source, the size of photoelectric source assembly can be reduced, and then the size of receiving space in lighting device can be reduced, realize the size reducing lighting device, to adapt to the development trend when front lighting device miniaturization.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic perspective view of photoelectric source assembly in the utility model embodiment;
Fig. 2 is the schematic perspective view of another angle of photoelectric source assembly in the utility model embodiment;
Fig. 3 is the schematic perspective view of photoelectric source assembly in another embodiment of the utility model;
Fig. 4 is the schematic perspective view of another angle of photoelectric source assembly in another embodiment of the utility model;
Fig. 5 is the circuit theory diagrams of photoelectric source assembly in the utility model embodiment.
Detailed description of the invention
The utility model embodiment provides a kind of photoelectric source assembly and lighting device.
Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Shown in ginseng Fig. 1, in the utility model embodiment, photoelectric source assembly 10 comprises light emitting source 11, driver module (non-label) and circuit substrate 13.
Light emitting source 11 can be the polytype such as LED light source, TL light source, and the quantity of light emitting source 11 also can set according to lighting demand, does not repeat at this.
Driver module and light emitting source 11 are electrically connected, and for transmitting supply current to light emitting source 11, light emitting source 11, can to a regional sustained illumination after acquisition supply current.
Circuit substrate 13 can be conventional printed substrate, and it is by insulated heat, the preparation of unbending material.The shape of circuit substrate 13 can demand set, such as, can be set as the shape of circle, square or other types.
Light emitting source 11 and driver module are all positioned on circuit substrate 13.Light emitting source 11 and driver module can be connected on circuit substrate 13 by the mode such as paster or plug-in unit, light emitting source 11 and driver module is electrically connected by the wiring be etched on circuit substrate 13, this is technology well known to those of ordinary skill in the art, does not repeat at this.
In the utility model embodiment, light emitting source 11 and driver module is carried by a circuit substrate 13, relative in prior art by light emitting source and drive module setting on different circuit substrates, the size of receiving space in lighting device can be reduced, the size of further reduction lighting device, to adapt to the development trend when front lighting device miniaturization.
Circuit substrate 13 comprises relative first surface 131 and second surface 132, light emitting source 11 is positioned on first surface 131, follow-up when circuit substrate 13 is mounted in lighting device (not shown), by the bright dipping face shield of first surface 131 towards lighting device.
Photoelectric source assembly 10 also comprises the via hole 14 running through circuit substrate 13, via hole 14 is positioned at all sides of light emitting source 11, the quantity of via hole 14 can set according to light emitting source 11, such as all sides of each light emitting source 11 can all arrange a via hole 14, also multiple via hole 14 can be arranged in all sides of each light emitting source 11, even say, can also several light emitting source 11 location comparison near time, a shared via hole 14 is set between these light emitting sources 14.
Via hole 14 runs through circuit substrate 13, and via hole 14 has internal face 141, internal face 141 is coated with the first heat dissipating layer 151.This first heat dissipating layer 151 can be copper, also can be that other have the material of good heat conductivility.
Because light emitting source 11 is in galvanization, inevitably produce heat, above the second surface 132 that these heats can rely on the first heat dissipating layer 151 to be distributed to circuit substrate 13 deviates from mutually with light emitting source 11, avoid piling up in the space of heat around light emitting source 11, improve the heat dispersion of photoelectric source assembly 10.
Shown in composition graphs 2, in the utility model embodiment, the second surface 132 of circuit substrate 13 is also provided with the second heat dissipating layer 152, this second heat dissipating layer 152 equally also can be copper or other there is the material of good heat conductivility.Wherein, the second heat dissipating layer 152 and the first heat dissipating layer 151 connect as one.Make light emitting source 11 evolutions of heat successively with the first heat dissipating layer 151 and the second heat dissipating layer 152, heat is further diffused to the top of second surface 132, further enhances the heat dispersion of photoelectric source assembly 10.
In the utility model embodiment, via hole 14 is cylindrical hole, and its aperture is between 0.2 to 0.5 millimeter, can be preferably 0.3 millimeter.Certainly, the shape of via hole 14 is also not limited to cylindrical hole, also can be other shapes, only need to ensure that its cross-sectional area and aperture are that the cross-sectional area of the cylindrical hole of 0.3 millimeter is basically identical, so just can while guarantee heat dispersion, avoid light emitting source 11 send and irradiate the light leak that brings through the top that via hole 14 is passed to second surface 132 of light, ensure illuminating effect.
Preferably, light emitting source 11 can be LED light source, and the heating due to LED light source concentrates on its negative pole, via hole 14 can be arranged on around the negative pole of LED light source.And the spacing between via hole 14 and the negative pole of LED light source is less than predeterminable range, farthest to distribute the evolution of heat of LED light source institute.
Here predeterminable range, can set according to demand, such as when the negative pole institute evolution of heat that via hole 14 can distribute LED light source can not affect again the stability of LED light source installation, using the distance now between via hole 14 and the negative pole of LED light source as predeterminable range, do not repeat at this.
In the utility model embodiment, photoelectric source assembly 10 is for Down lamp type lighting device, and driver module comprises multiple electronic component cooperatively interacted, and these electronic components are distinguished from type, comprises plug-in type element 121 and SMD element 122.
It should be noted that; it is different that plug-in type element 121 and SMD element 122 are only type; its element the function that rises do not limit; such as plug-in type element 121 can play the function of overcurrent protection; SMD element 122 also can play the function of overcurrent protection; the function that concrete plug-in type element 121 and SMD element 122 play can be distributed according to the functional requirement of driver module, does not repeat at this.
Wherein, SMD element 121 is positioned at described first surface 131, and described plug-in type element 122 is positioned at described second surface 132.
Plug-in type element 121 and SMD element 122 are generally black element, because light emitting source 11 generally adopts paster mode to be arranged on first surface 131, SMD element 121 is arranged on described first surface 131, can light emitting source 11 be posted on first surface 131 together with SMD element 121, save manufacturing cost; Follow-up, then by plug-in unit mode, plug-in type element 122 is set on second surface 132.
Due to, the supporting diffuser plate for bright dipping (not shown) of Down lamp type lighting device has certain even luminous energy power, cannot see that lighting device is inner from diffuser plate, SMD element 121 and light emitting source 11, on same surface, also can not affect the perception of lighting device.
Shown in composition graphs 3 and Fig. 4, in other embodiments of the present utility model, photoelectric source assembly 10 is for torch-type lighting device, and compared with previous embodiment, difference is: SMD element 121 and plug-in type element 122 are all positioned at second surface 132.
Due to, the lens for bright dipping (not shown) the even luminous energy power that torch-type lighting device coordinates is poor, can see that lighting device is inner from lens, SMD element 121 and plug-in type element 122 are all positioned at second surface 132, can improve the perception of lighting device.
Shown in composition graphs 5, driver module comprises electric current acquiring unit 21, electric current acquiring unit 21 is for obtaining supply current and supply current being passed to light emitting source 11, electric current acquiring unit 21 can comprise the rectification circuit (non-label) connecting external power source (not shown), external power source institute is sent supply current and is adjusted to the applicable supply current of light emitting source.
Electric current acquiring unit 21 also comprises the insurance resistance R1 be connected between external power source and rectification circuit, and insurance resistance R1 can reduce costs further, disconnects fast, can not cause the dangerous phenomenons such as naked light under also there are the abnormal conditions such as short circuit at product.The resistance of insurance resistance can set according to demand, to provide the Surge handling capability of PF value and circuit to be as the criterion, does not repeat at this.
Single-stage Buck chip 22 is also connected with between electric current acquiring unit 21 and light emitting source 11, this single-stage Buck chip 22 is built-in with VCC starting resistance and FET, relative to the VCC starting resistance and the FET that adopt plug-in unit style, can serve the same role, but the size of single-stage Buck chip 22 is less, the size of photoelectric source assembly 10 significantly can be reduced.
Also have power circuit 23 between single-stage Buck chip 22 and light emitting source 11, power circuit 23 comprises diode D1 and power inductance L1, and diode D1 connects single-stage Buck chip 22 and as the fly-wheel diode of single-stage Buck chip 22.
Power inductance L1 is energy storage inductor, adopts I-shaped inductance.Because I-shaped inductance core area is little, the number of turns is few, at high temperature easily saturated, is generally used for EMI instead of power inductance.In the utility model preferred embodiment, in conjunction with the temperature characterisitic of I-shaped inductance, formulate a I-shaped inductance meeting lighting demand, the application needs of the photoelectric source assembly in the utility model can have been met.In lighting device actual application environment, also can not be saturated at even higher temperature, ensure its service life.
Certainly, driver module also comprises other function element, such as by electric current acquiring unit 21 the constant current-supplying circuit that collection electric current carries out the filter circuit of filtering, single-stage Buck chip 22 is powered, the sample circuit detecting the electric current of powering to light emitting source 11 and for the dummy load circuit of bearing the unwanted extracurrent of light emitting source 11 etc., do not repeat at this.
In the utility model embodiment, additionally provide a kind of lighting device (not shown) comprising aforementioned Photon-Electron source component 10, this lighting device can be Down lamp, also can be shot-light.The housing that lighting device comprises carrying light source assembly 10 and the external power source be electrically connected with described photoelectric source assembly, this external power source can be alternating current can be also direct current, does not repeat at this.
In the utility model embodiment by by light emitting source and drive module setting on same circuit substrate, different circuit substrates is laid respectively at relative to light emitting source with for delivered current to the driver module of light emitting source, the size of photoelectric source assembly can be reduced, and then the size of receiving space in lighting device can be reduced, realize the size reducing lighting device, to adapt to the development trend when front lighting device miniaturization.
The foregoing is only embodiment of the present utility model, be not limited to the utility model.To those skilled in the art, the utility model can have various modifications and variations.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (10)
1. a photoelectric source assembly, is characterized in that, comprising:
Light emitting source;
Driver module, is electrically connected with described light emitting source, for transmitting supply current to described light emitting source;
Circuit substrate, described light emitting source and driving power are all positioned on described circuit substrate.
2. photoelectric source assembly as claimed in claim 1, is characterized in that, the single-stage Buck chip that described driver module comprises the electric current acquiring unit for obtaining supply current and is connected between described electric current acquiring unit and light emitting source.
3. photoelectric source assembly as claimed in claim 2, it is characterized in that, described driver module comprises the power circuit be connected between described single-stage Buck chip and described light emitting source, and described power circuit comprises power inductance, and described power inductance is I-shaped inductance.
4. photoelectric source assembly as claimed in claim 1, is characterized in that, described circuit substrate comprises the via hole being positioned at described light emitting source week side, and described via hole runs through described circuit substrate, and the internal face of described via hole is coated with heat dissipating layer.
5. photoelectric source assembly as claimed in claim 4, it is characterized in that, the aperture of described via hole is between 0.2 to 0.5 millimeter.
6. photoelectric source assembly as claimed in claim 4, it is characterized in that, described light emitting source is LED light source, and the spacing between the negative pole of described via hole and described LED light source is less than predeterminable range.
7. photoelectric source assembly as claimed in claim 4, it is characterized in that, described circuit substrate comprises the first surface and the second surface relative with described first surface that are provided with described light emitting source, described second surface is coated with heat dissipating layer, and on described second surface, in heat dissipating layer and described via hole, heat dissipating layer connects as one.
8. photoelectric source assembly as claimed in claim 7, it is characterized in that, described photoelectric source assembly is used for Down lamp, and described driver module comprises plug-in type element and SMD element, described SMD element is positioned at described first surface, and described plug-in type element is positioned at described second surface.
9. photoelectric source assembly as claimed in claim 7, is characterized in that, described photoelectric source assembly is used for shot-light, and described driver module comprises plug-in type element and SMD element, and described SMD element and plug-in type element are all positioned at described second surface.
10. a lighting device, is characterized in that, comprising:
Housing;
As photoelectric source assembly as described in any one in claim 1 to 9, described photoelectric source assembly is arranged at described housing;
External power source, is electrically connected with described photoelectric source assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861973.4U CN205090206U (en) | 2015-10-30 | 2015-10-30 | Light power supply module and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861973.4U CN205090206U (en) | 2015-10-30 | 2015-10-30 | Light power supply module and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205090206U true CN205090206U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520861973.4U Active CN205090206U (en) | 2015-10-30 | 2015-10-30 | Light power supply module and lighting device |
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|---|---|
| CN (1) | CN205090206U (en) |
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2015
- 2015-10-30 CN CN201520861973.4U patent/CN205090206U/en active Active
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