A kind of multi-level lotus light
Technical field
The invention belongs to LED field of light fittings, be specifically related to a kind of radiator structure of LED light fixture.
Technical background
At present in most LED fitting structures, it adopts is aluminium base, aluminium base has become the substrate material of comparatively generally using, one of reason that it obtains vast market is good heat dispersion performance, yet, progress along with environmental change and society, aluminium base has shown certain drawback, if modern society is for eco-friendly requirement, and the high present situation of cost, it is large that aluminium base can not show a candle to paper base plate advantage, in prior art, use the structure of paper base plate to be applied to low current and market cheaply more, it cannot be for larger current domain, one of reason is that its radiating effect is not good.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of LED light fixture that utilizes paper base plate can strengthen brightness of illumination and heat radiation function.
A kind of multi-level lotus light of the present invention, comprise driver module, substrate and be arranged at the many groups lamp pearl on substrate, described substrate is at least two, and each substrate is arranged in parallel and is separated from each other, form stratification, from upper strata, the area to lower floor reduces each substrate successively.
As to the further describing of above-mentioned multi-level lotus light, from upper strata, be provided with heat radiation through hole to middle substrate, drive module setting is on substrate or respectively dispel the heat between through hole, and the area of heat radiation through hole reduces to lower floor's direction successively from upper strata.
As to the further describing of above-mentioned multi-level lotus light, the one side that each substrate arranges lamp pearl is zinc-plated top layer, and described zinc-plated top layer is in order to heat radiation.
As the further description to above-mentioned multi-level lotus light, the upper surface of base plate at top arranges one group of lamp pearl.
As the further description to above-mentioned multi-level lotus light, each base lower surface except the substrate at top is provided with lamp pearl.
As to the further describing of above-mentioned multi-level lotus light, the lamp pearl of substrate is arranged in the region of this laminar substrate of lower laminar substrate upright projection outside this laminar substrate area.
As a kind of preferred version to above-mentioned multi-level lotus light, described substrate is paper base plate.
As to the further describing of above-mentioned multi-level lotus light, the external lightning protection surge element of described driver module.
As to the further describing of above-mentioned multi-level lotus light, each is organized, and lamp pearl is connected mutually and the quantity of every group of lamp pearl is consistent.
The invention has the beneficial effects as follows: owing to using the substrate setting of stratification, between each substrate, leave room, heat radiation through hole is offered in the centre of substrate simultaneously, in the convection process of air-flow, air can be flowed and pass heat radiation through hole to empty place by substrate outside, drive circuit and substrate thereby can obtain maximized radiating effect, better than traditional monolithic substrate heat radiation, thereby can in the illuminating industry of large electric current, use paper base plate, still can keep lower illumination temperature, employing cost is low, and paper base plate is pollution-free, open the use that heat radiation through hole maximizing reduces material simultaneously, meet eco-friendly modern society demand.
Accompanying drawing explanation
Fig. 1 is arranged at structure setting and the gas flow track schematic diagram on substrate for driving;
Fig. 2 is for driving structure setting and the gas flow track schematic diagram through substrate;
Fig. 3 is the circuit connection structure schematic diagram of one group of lamp pearl;
Fig. 4 is the lamp pearl structural representation on substrate.
The specific embodiment
As shown in Figure 1, a kind of multi-level lotus light of the present invention, comprise substrate 1, driver module 2 and be arranged at the many groups lamp pearl 3 on substrate, described substrate 1 is at least two, each substrate is arranged in parallel and is separated from each other, form stratification, from upper strata, the area to lower floor reduces each substrate successively.
As further describing above-mentioned multi-level lotus light, from upper strata, extremely middle substrate 1 is provided with heat radiation through hole 11, driver module can be arranged on substrate, or respectively dispels the heat (as Fig. 2) between through hole, and the area of heat radiation through hole 11 reduces to lower floor's direction successively from upper strata.Wherein, the substrate 1 that heat radiation through hole 11 is set is determined by the power of each light fixture, large if heat radiation requires, and can be equipped with heat radiation through hole from the superiors to layer second from the bottom, if radiating requirements is not high, can only at the substrate place of the specific number of plies, open heat radiation through hole.
As to the further describing of above-mentioned multi-level lotus light, the one side that each substrate arranges lamp pearl 3 is zinc-plated top layer, and described zinc-plated top layer is in order to heat radiation.
As the further description to above-mentioned multi-level lotus light, the upper surface of base plate at top arranges one group of lamp pearl.The design at this top can make the light fixture of this structure except the illumination of below, also has up illuminating effect, realizes upper and lower light and Integral luminous even.
As the further description to above-mentioned multi-level lotus light, each base lower surface except the substrate at top is provided with lamp pearl 3.
With reference to Fig. 4, as to the further describing of above-mentioned multi-level lotus light, the lamp pearl 3 of substrate is arranged in the region 12 of this laminar substrate of lower laminar substrate upright projection outside this laminar substrate area.
As to the further describing of above-mentioned multi-level lotus light, the external lightning protection surge element of described driver module, the surge impact that can prevent thunderbolt damages and drives.
As to the further describing of above-mentioned multi-level lotus light, each is organized, and lamp pearl is connected mutually and the quantity of every group of lamp pearl is consistent.In this technical scheme, as shown in Figure 3, every group arranges 4 lamp pearls, the electric current that flows through every lamp pearl is 75mA, thereby the driving of every group is fixedly installed as 300mA, when wherein a lamp pearl damages, the electric current of all the other lamp pearls shuntings of every group becomes 100mA, the maximum current limit value that is still less than lamp pearl, can guarantee the normal work of lamp pearl.
As a kind of preferred version to above-mentioned multi-level lotus light, described substrate is paper base plate.Because radiating effect strengthens greatly, by test, can learn, although paper base plate heat radiation is not better than aluminium base, adopt after this structure, the substrate of the materials such as the aluminium base that it combines with employing existing structure or ceramic substrate has identical even more excellent radiating effect, with reference to following table 1.Due to the environmental protection of paper base plate material, but it is not high to be limited to the radiating efficiency of prior art, thereby mostly all generally adopts aluminium base, after improving, can realize the low-cost requirement that adopts substrate, meets existing environmental protection by this technology.
Power (W) |
Brightness (LM) |
Substrate surface temperature (degree Celsius) |
7 |
807 |
47.6 |
12 |
1268 |
59 |
20 |
2192 |
61.7 |
100 |
10613 |
59 |
Due to described substrate, each aspect is long-pending from top to bottom reduces, in vertical direction, the lamp pearl of top substrate layer is arranged on the skin of lower laminar substrate view field, thereby lower laminar substrate does not have influence on, and to be arranged at the lamp pearl of top substrate layer luminous, can guarantee the maximum using of light, simultaneously, the substrate design of stratification can guarantee have enough spaces to dispel the heat between each substrate, the substrate on centre and upper strata arranges heat radiation through hole, can form Air Flow at each substrate mid portion, realize the Homogeneouslly-radiating at each position of substrate.
The above not imposes any restrictions technical scope of the present invention, and all any modification, equivalent variations and modifications of above embodiment being done according to the technology of the present invention essence, all still belong in the scope of technical solution of the present invention.