A kind of adjustable color temperature, the aobvious LED lamp referring to
Technical field
The present invention relates to LED lamp art, refer in particular to a kind of adjustable color temperature, the aobvious LED lamp referring to.
Background technology
The solid state device that light-emitting diode (LED or LEDS) is is luminous energy by electric energy conversion, long service life, color rendering index are high, energy-conserving and environment-protective, brightness are high, be widely used, and every country is all vigorously advocated development LED industry.Scientific and technological progress has in recent years made LED packaged lamp cup have more small size, complex structure, photochromic diversified popular trend.Existing LED encapsulation Lamp cup generally adopts the structure that encapsulates single LEDs wafer in a Lamp cup, and what Lamp cup was done is darker, and in Lamp cup, fill glue with fixed L ED wafer, the existing problem of LED lamp of this structure is that Lamp cup volume is large, affect its serviceability, the diffusivity of light is also poor, and Lamp cup of what is more important can only do single white light, photochromic single, can not meet the user demand of some special occasions.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of adjustable color temperature, the aobvious LED lamp referring to, it has two reflectors, LED wafer difference in two reflectors, fluorescent material glue-line proportioning difference, the supply power voltage of each LED wafer and electric current can free adjustment, to adjust varied different-colour, the different aobvious mixed light referring to, light mixing effect is good.
For achieving the above object, the present invention adopts following technical scheme:
Adjustable color temperature, the aobvious LED lamp referring to, comprise
One insulating body, the end face of this insulating body is recessed a cup, and the center of this cup is provided with a nontransparent withe, forms the first reflector and the second reflector so that cup is divided into two, and the volume of this first reflector is greater than the volume of the second reflector;
Three groups of conducting terminals, respectively first group of conducting terminal, second group of conducting terminal, the 3rd group of conducting terminal, each group conducting terminal is arranged in order and is one-body molded with this insulating body, wherein first, second group conducting terminal has the bottom surface that the first reflector exposes in die bond portion, and the 3rd group of conducting terminal has the bottom surface that the second reflector exposes in die bond portion;
Three LED wafers, respectively red-light LED wafer, the first blue-ray LED wafer and the second blue-ray LED wafer, this red-light LED wafer and the first blue-ray LED wafer are all positioned at the first reflector and are connected to first and second groups of conducting terminals, and this second blue-ray LED wafer is positioned at the second reflector and is connected in the 3rd group of conducting terminal;
There is the first fluorescent material glue-line and the second fluorescent material glue-line of different proportionings, this the first fluorescent material glue-line injecting glue is in the first reflector, this the second fluorescent material glue-line injecting glue is in the second reflector, this red-light LED wafer and the first blue-ray LED wafer see through the first fluorescent material glue-line and mix the white light that sends a kind of colour temperature, and this second blue-ray LED wafer sees through the second fluorescent material glue-line and mixes the white light that sends another kind of colour temperature.
As a kind of preferred version, the degree of depth of described the first reflector is H1, and the degree of depth of described the second reflector is H2, and the height of described withe is H3, wherein, and H1=H2, H3< H1.
As a kind of preferred version, in the rim of a cup of described the first reflector and the second reflector, along being equipped with concave station, the end face of described first, second fluorescent material glue-line is parallel to the base face of this concave station.
As a kind of preferred version, described first to the 3rd group of conducting terminal all has a positive terminal and a negative terminal, and each positive and negative electrode terminal is distributed in the relative both sides of insulating body;
Each positive and negative electrode terminal all has die bond portion and leg portion; This first, the length of the die bond portion of the positive terminal of the 3rd group of conducting terminal is greater than the length L 1> L1 ' of the die bond portion of its negative terminal, L3> L3 '; The length of the die bond portion of the negative terminal of this second group of conducting terminal is greater than length L 2 ' > L2 of the die bond portion of its positive terminal, and each LED wafer is fixed in the die bond portion that each length is larger.
As a kind of preferred version, described red-light LED wafer is fixed in the die bond portion of positive terminal of first group of conducting terminal, the positive and negative electrode terminal conducting of gold thread and first group of conducting terminal for the two ends of red-light LED wafer; This first blue-ray LED wafer is fixed in the die bond portion of negative terminal of second group of conducting terminal, the positive and negative electrode terminal conducting of gold thread and second group of conducting terminal for the two ends of the first blue-ray LED wafer; The mixed light of this red-light LED wafer and the first blue-ray LED wafer concentrates on the center of the first reflector;
This second blue-ray LED wafer is fixed in the die bond portion of positive terminal of the 3rd group of conducting terminal, the positive and negative electrode terminal conducting of gold thread and the 3rd group of conducting terminal for the two ends of the second blue-ray LED wafer, the light source of the second blue-ray LED wafer concentrates on the center of the second reflector.
As a kind of preferred version, insulating body both sides the curved bottom surface that is accommodated in insulating body of reflexed are stretched out respectively by each leg portion of every group of conducting terminal.
As a kind of preferred version, the profile of described insulating body is square, and described first, second reflector is all rectangle structures, and the first reflector Aspect Ratio is W1:W1 '=1.7:1, and the second reflector Aspect Ratio is W2:W2 '=2.7:1.
As a kind of preferred version, described insulating body and withe are integral type structure.
The present invention compared with prior art has obvious advantage and beneficial effect, particularly, and as shown from the above technical solution,
Two reflectors that mutually cut off are set on insulating body, and red-light LED wafer and the first blue-ray LED wafer are installed in the first reflector, the second blue-ray LED wafer is installed in the second reflector, and in two reflectors, inject the fluorescent material glue-line of different proportionings, this red-light LED wafer and the first blue-ray LED wafer see through the first fluorescent material glue-line mixing and send the indefinite white light of a kind of colour temperature, and this second blue-ray LED wafer sees through the second fluorescent material glue-line mixing and sends the indefinite white light of another kind of colour temperature; Nationality can be isolated mutually by the two kinds of fluorescent material that are arranged so that of withe, thereby a kind of fluorescent material can not pollute another kind of fluorescent material, and avoids photochromic cross pollution; Again by each LED wafer by the power supply of conducting end subgroup independently, voltage and current free adjustment does not affect the luminosity of other wafer, adjusting varied indefinite colour temperature, differently aobviously refer to, mixed light that light intensity is adjustable, light mixing effect is good.
For more clearly setting forth architectural feature of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is the assembling schematic perspective view of the first embodiment of the present invention, not sealing of the reflector in figure;
Fig. 2 is visual angle, the bottom figure of Fig. 1;
Fig. 3 is the front view of Fig. 1;
Fig. 4 is the cutaway view of the first embodiment of the present invention, not sealing of the reflector in figure;
Fig. 5 be in Fig. 4 A to front view;
Fig. 6 is the schematic diagram injecting in Fig. 5 after fluorescent material glue-line;
Fig. 7 is the assembling schematic perspective view of the second embodiment of the present invention, not sealing of the reflector in figure.
Accompanying drawing identifier declaration:
10, insulating body 11, withe
12, the first reflector 13, the second reflector
14, concave station 21, first group of conducting terminal
22, second group of conducting terminal 23, the 3rd group of conducting terminal
211,212,221,222,231,232, die bond portion
213,214,223,224,233,234, leg portion
31, red-light LED wafer 32, the first blue-ray LED wafer
33, the second blue-ray LED wafer 41, the first fluorescent material glue-line
42, the first fluorescent material glue-line.
Embodiment
Please refer to shown in Fig. 1 to Fig. 6, it has demonstrated the concrete structure of the first embodiment of the present invention.The LED lamp of the adjustable aobvious finger of described adjustable color temperature includes the fluorescent material glue-line 41,42 of insulating body 10, three groups of conducting terminals 21,22,23, three LED wafers 31,32,33 and two kind of different proportioning.
Wherein, described insulating body 10 is to make with plastic material, sees Fig. 3, and the profile of this insulating body 10 is square.The end face of this insulating body 10 is recessed a cup, and the center of this cup is provided with a nontransparent withe 11, forms the first reflector 12 and the second reflector 13 so that cup is divided into two.Described two kinds of fluorescent material glue-lines refer to respectively the first fluorescent material glue-line 41 and the second fluorescent material glue-line 42 of different proportionings, and these the first fluorescent material glue-line 41 injecting glues are in the first reflector 12, and these the second fluorescent material glue-line 42 injecting glues are in the second reflector 13.Nationality isolates two kinds of fluorescent material glue-lines 41,42 of two reflectors 12,13 by the design of withe 11 mutually, can not mix, thereby a kind of fluorescent material can not pollute another kind of fluorescent material.
In the present embodiment, this withe 11 is integral type structure with insulating body 10, thereby can one-shot forming go out, without assembling.As shown in Figure 3, this first, second reflector 12,13 is all square structures, and the first reflector 12 Aspect Ratios are W1:W1 '=1.7:1, and the second reflector 13 Aspect Ratios are W2:W2 '=2.7:1.By the volume that the volume of the first reflector is greater than to the second reflector, make the first reflector 12 can hold two kinds of different LED wafers, and the second reflector 13 only hold a kind of LED wafer.
In the present embodiment, see Fig. 5, the degree of depth of the first reflector 12 of described insulating body 10 is H1, and the degree of depth of described the second reflector 13 is H2, and the height of described withe 11 is H3, wherein, and H1=H2, H3< H1.By withe 11, two reflectors 12,13 are intercepted, two kinds of different fluorescent material glue-lines 41,42 are not mixed mutually, thereby a kind of fluorescent material can not pollute another kind of fluorescent material.What nationality was arranged by this height by this withe 11 again is lower, and therefore, the LED wafer in the first and second reflectors 12,13 can more easily carry out mixed light from height difference H 4 positions at withe 11 tops.
In addition, in the rim of a cup of described the first reflector 12 and the second reflector 13, along being equipped with concave station 14, the end face of this first, second fluorescent material glue-line 41,42 is parallel to the base face of this concave station 14.Can avoid on the one hand the reflector of tradition without concave station, inject after fluorescent material glue-line, the week of colloid causes the surface irregularity of fluorescent material glue-line along climbing, and affects light effect; On the other hand, this concave station 14 can guarantee after moulding blanking, and the rim of a cup of reflector 12,13 can be not unedged; The third aspect, concave station 14 also makes the area of reflector 12,13 rims of a cup increase, thus the light mixing effect of two reflectors is better.
Described three groups of conducting terminals are respectively first group of conducting terminal 21, second group of conducting terminal 22, the 3rd group of conducting terminal 23.Each group conducting terminal is arranged in order and is one-body molded with this insulating body 10.Described first to the 3rd group of conducting terminal 21,22,23 all has a positive terminal and a negative terminal, and each positive and negative electrode terminal is distributed in the relative both sides of insulating body 10; Each positive and negative electrode terminal all has die bond portion 211,212,221,222,231,232 and leg portion 213,214,223,224,233,234; Insulating body 10 both sides the curved bottom surface that is accommodated in insulating body 10 of reflexed are stretched out respectively by each leg portion of every group of conducting terminal.
Wherein first, second group conducting terminal 21,22 has die bond portion 211,212; 221,222 bottom surfaces of exposing the first reflector 12, the 3rd group of conducting terminal 23,24 has the bottom surface that the second reflector 13 exposes in die bond portion 231,232.
Described three LED wafers comprise respectively red-light LED wafer 31, the first blue-ray LED wafer 32, the second blue-ray LED wafer 33.This red-light LED wafer 31 is fixed on the die bond portion 211 of first group of conducting terminal 21, and this first blue-ray LED wafer 32 is fixed on the die bond portion 222 of second group of conducting terminal 22, and this second blue-ray LED wafer 33 is fixed on the die bond portion 231 of the 3rd group of conducting terminal 23.
In addition, this first, the length of the die bond portion 211,231 of the positive terminal of the 3rd group of conducting terminal 21,23 is greater than the length L 1> L1 ' of the die bond portion 212,232 of its negative terminal, L3> L3 '; The length of the die bond portion 222 of the negative terminal of this second group of conducting terminal 22 is greater than length L 2 ' > L2 of the die bond portion 221 of its positive terminal.Each LED wafer 31,32,33 is fixed in the die bond portion 211,222,231 that length is larger, can has larger area fixed L ED wafer on the one hand, make on the other hand each LED wafer arrange evenly, obtain better light mixing effect.
Particularly, described red-light LED wafer 31 is fixed in the die bond portion 211 of positive terminal of first group of conducting terminal 21, the positive and negative electrode terminal conducting of gold thread and first group of conducting terminal 21 for the two ends of red-light LED wafer 31.This first blue-ray LED wafer 32 is fixed in the die bond portion 222 of negative terminal of second group of conducting terminal 22, the positive and negative electrode terminal conducting of gold thread and second group of conducting terminal 22 for the two ends of the first blue-ray LED wafer 32.This second blue-ray LED wafer 33 is fixed in the die bond portion 231 of positive terminal of the 3rd group of conducting terminal 23, the positive and negative electrode terminal conducting of gold thread and the 3rd group of conducting terminal 23 for the two ends of the second blue-ray LED wafer 33.Thereby there is dislocation a little red-light LED wafer 31 and the position of the first blue-ray LED wafer 32 in the first reflector 12, but can ensure that the mixed light after the two combination concentrates on the first reflector 12 center.Same, this second blue-ray LED wafer 33 also concentrates on the second reflector 13 center.
Respectively to provide power supply by four groups of separate conducting end subgroups 21,22,23 by these three LED wafers 31,32,33, therefore the electric current of every group of conducting terminal 21,22,23 and voltage can be according to the each self-adjustings of needs, to strengthen or to weaken light intensity, and not affecting the luminous intensity of other LED wafer, modulability is very strong.Coordinate the LED wafer 31,32,33 of different color and the fluorescent material glue-line 41,42 of different proportionings, can adjust varied different-colour, different aobvious finger, different light extraction efficiency, different luminous flux, the mixed light in homochromy district not, user can freely regulate the most suitable tone according to different environment, mood, implements very simple.
As shown in Figure 7, it has shown the concrete structure of the second embodiment of the present invention.This second embodiment and the first embodiment are basic identical, and difference has been to save the concave station 14 of insulating body 10, because the structure of other each parts of this second embodiment is identical with the first embodiment with usage, do not repeat them here.
In sum, design focal point of the present invention is, two reflectors that mutually cut off are set on insulating body 10, and red-light LED wafer 31 and the first blue-ray LED wafer 32 be installed in the first reflector 12, the second blue-ray LED wafer is installed in the second reflector 13, and at two reflectors 12, in 13, inject the fluorescent material glue-line 41 of different proportionings, 42, this red-light LED wafer 31 and the first blue-ray LED wafer 32 see through the first fluorescent material glue-line 41 mixing and send the indefinite white light of a kind of colour temperature, this the second blue-ray LED wafer 33 sees through the second fluorescent material glue-line 42 mixing and sends the indefinite white light of another kind of colour temperature, nationality can be isolated mutually by the two kinds of fluorescent material 41,42 that are arranged so that of withe 11, thereby a kind of fluorescent material can not pollute another kind of fluorescent material, photochromic can cross pollution, again by each LED wafer 31,32,33 by 21,22,23 power supplies of conducting end subgroup independently, voltage and current free adjustment does not affect the luminosity of other wafer, adjusting varied indefinite colour temperature, different aobvious refer to, mixed light that light intensity is adjustable, light mixing effect is good.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, therefore any trickle amendment, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong in the scope of technical solution of the present invention.