A kind of LED lamp pearl of fine heat-resisting performance
Technical field
The utility model relates to the LED lighting technical field, relates in particular to a kind of LED lamp pearl of fine heat-resisting performance.
Background technology
Fast development along with lighting technology, LED illumination series products has occupied the very big market share, conduct vigorous propaganda and promote under the prerequisite energy-conservation, illuminating product efficiently in country, a lot of enterprises also respond country's call and make great efforts the LED illuminating product that the research and development energy consumption is low, light efficiency is high.One of core parts of these LED illuminating products are LED lamp pearls, existing LED lamp pearl includes support, this support is provided with led chip, support is provided with electrode, connect by lead between led chip and the electrode, usually, scribble the mixed layer of silica gel and fluorescent material at led chip, thereby led chip is sealed in this mixed layer, and adjusts the glow color of LED lamp pearl by the proportioning of fluorescent material.Maturation gradually along with the LED lighting technology, people are also more and more higher to the requirement in the useful life of LED lamp pearl, in the above-mentioned LED lamp pearl, silica gel mixes mutually with fluorescent glue, because led chip can produce a large amount of heats when luminous, along with the rising of heat, fluorescent material is apt to deteriorate and chemical reaction takes place easily, thereby cause the early stage light efficiency decay of LED lamp pearl, especially when LED lamp pearl is lighted for a long time, occur situations such as light jaundice easily.Therefore, existing LED lamp pearl not only heat resistance difference but also early stage light efficiency are decayed easily.
The utility model content
The technical problems to be solved in the utility model is, a kind of LED lamp pearl of fine heat-resisting performance is provided, and this LED lamp pearl has the advantage that can use for a long time and the phenomenon of early stage light efficiency decay and light jaundice can not occur.
For solving the problems of the technologies described above, the utility model adopts following technical scheme.
A kind of LED lamp pearl of fine heat-resisting performance, it includes a support, described support is provided with two electrodes, described support is provided with at least one led chip, described led chip is connected to two electrodes respectively by lead, described LED lamp pearl also includes two-layer at least photic zone, photic zone under wherein being positioned at is first photic zone, this first photic zone is any one in layer of silica gel and the resin bed, described led chip is sealed in this first photic zone, and the photic zone on described first photic zone is the fluorescence glue-line.
Preferably, the quantity of described led chip is one.
Preferably, be provided with first optical thin film between described first photic zone and the fluorescence glue-line.
Preferably, described first optical thin film is any one or a few the combination in anti-reflection film, filter coating, reflectance coating, optical protection layer, polarizing coating and the spectro-film.
Preferably, be provided with second optical thin film on the described fluorescence glue-line.
Preferably, described second optical thin film is any one or a few the combination in anti-reflection film, filter coating, reflectance coating, optical protection layer, polarizing coating and the spectro-film.
Preferably, also be provided with a reflector on the described support, described led chip is positioned at the bottom of this reflector.
Preferably, the sidewall of described reflector and bottom all are electroplate with the metal reflective layer.
Preferably, the lead that connects between described led chip and the electrode is gold thread.
In the LED lamp pearl that the utility model proposes; owing to first photic zone is that in layer of silica gel and the resin bed any one has very strong temperature capacity; so; with this first photic zone led chip light for a long time and the state of continuous high temperature under qualitative change can not take place; and still keep very high transparency; thereby improved the temperature capacity of LED lamp pearl; simultaneously; the caloric requirement that led chip sends sees through first photic zone and conducts to the fluorescence glue-line; owing to having stopped the transmission of heat, first photic zone reduced the temperature of fluorescence glue-line; thereby protected the fluorescence glue-line can Yin Wendu not too high and occur rotten; the situation of jaundice; therefore; the LED lamp pearl that the utility model proposes has good heat resistance, and lights the phenomenon that early stage light efficiency decay and light jaundice appear in Shi Buhui for a long time.
Description of drawings
Fig. 1 is the cutaway view of the LED lamp pearl that the utility model proposes.
Embodiment
Below in conjunction with drawings and Examples the utility model is done more detailed description.
The utility model discloses a kind of LED lamp pearl of fine heat-resisting performance, as shown in Figure 1, it includes a support 1, described support 1 is provided with two electrodes 2, described support 1 is provided with at least one led chip 3, described led chip 3 is connected to two electrodes 2 respectively by lead, described LED lamp pearl also includes two-layer at least photic zone, photic zone under wherein being positioned at is first photic zone 4, this first photic zone 4 is any one in layer of silica gel and the resin bed, described led chip 3 is sealed in this first photic zone 4, and the photic zone on described first photic zone 4 is fluorescence glue-line 5.In this LED lamp pearl, be provided with two-layer at least photic zone on the led chip 3, wherein first photic zone 4 is used for led chip 3 sealings, and fluorescence glue-line 5 is positioned on first photic zone 4 and is used for adjusting the glow color of LED lamp pearl.In the utility model; owing to first photic zone 4 is that in layer of silica gel and the resin bed any one has very strong temperature capacity; so; with this first photic zone 4 led chip 3 light for a long time and the state of continuous high temperature under qualitative change can not take place; can keep very high transparency; thereby improved the temperature capacity of LED lamp pearl; simultaneously; the caloric requirement that led chip 3 sends sees through first photic zone 4 and conducts to fluorescence glue-line 5; reduce the temperature of fluorescence glue-line 5 owing to first photic zone 4 has stopped the transmission of heat, thereby protected fluorescence glue-line 5 can not occur going bad because of long term high temperature; the situation of jaundice.Therefore, the LED lamp pearl that the utility model proposes has good heat resistance, and lights the phenomenon that light efficiency decay and light jaundice appear in Shi Buhui for a long time.
In the present embodiment, the quantity of described led chip 3 is one, still, in other embodiment of the present utility model, the led chip 3 of other quantity can also be set.
In the present embodiment, be provided with first optical thin film 6 between described first photic zone 4 and the fluorescence glue-line 5, described first optical thin film 6 is any one or a few the combinations in anti-reflection film, filter coating, reflectance coating, optical protection layer, polarizing coating and the spectro-film.Be provided with second optical thin film 7 on the described fluorescence glue-line 5, described second optical thin film 7 is any one or a few the combinations in anti-reflection film, filter coating, reflectance coating, optical protection layer, polarizing coating and the spectro-film.But the optical thin film of these types is not limited to the utility model, in actual applications, the optical thin film of other types can also be set according to actual needs.
In the present embodiment, also be provided with a reflector 8 on the described support 1, described led chip 3 is positioned at the bottom of this reflector 8, and the sidewall of described reflector 8 and bottom all are electroplate with the metal reflective layer.Wherein, the light that send the side of led chip 3 and bottom surface can reflect away by reflector 8, thereby has increased the luminous intensity of the direction of illumination of LED lamp pearl, has improved optical efficiency.
In the present embodiment, the lead that connects between described led chip 3 and the electrode 2 is gold thread.But this is a preferred embodiment of the present utility model, is not limited to the utility model, and in other embodiment of the present utility model, this lead can also adopt other electrically good metal wires.
In the LED lamp pearl that the utility model proposes; owing to first photic zone is that in layer of silica gel and the resin bed any one has very strong temperature capacity; so; with this first photic zone 4 led chip 3 light for a long time and the state of continuous high temperature under qualitative change can not take place; and still keep very high transparency; thereby improved the temperature capacity of LED lamp pearl; simultaneously; the caloric requirement that led chip 3 sends sees through first photic zone 4 and conducts to fluorescence glue-line 5; owing to having stopped the transmission of heat, first photic zone 4 reduced the temperature of fluorescence glue-line 5; thereby protected fluorescence glue-line 5 can Yin Wendu not too high and occur rotten; the situation of jaundice; therefore; the LED lamp pearl that the utility model proposes has good heat resistance, and lights the phenomenon that light efficiency decay and light jaundice appear in Shi Buhui for a long time.In addition, the utility model has also increased two-layer optical thin film, and this optical thin film can be used for adjusting lighting angle, reduces the surface reflection, spectrum is cut apart etc., thereby makes and the utlity model has application flexibility preferably.
The above is the utility model preferred embodiment, is not limited to the utility model, all modifications of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that the utility model protects.