Eye-protection LED packaging structure with dual-mode structure

Abstract

The utility model discloses an eye-protection LED packaging structure with a dual-mode structure, which comprises a substrate, and has the beneficial effects that a first colloid, yellow fluorescent powder, a second colloid and a third colloid are arranged, so that a long-wave blue-light chip or a conventional blue-light chip can emit blue light after being electrified, part of the blue light is directly emitted, and the light-emitting efficiency is improved. The other blue light excites the yellow fluorescent powder in the first colloid to enable the yellow fluorescent powder to emit yellow light, the blue light and the yellow light are mixed, the human eyes finally perceive white light, the conventional blue light chip and the long-wave blue light chip are each provided with a switch which can be controlled, the conventional blue light chip is powered off when an eye protection mode is needed, and the long-wave blue light chip is powered off when the eye protection mode is needed. In this way, white light excited by the long-wave blue light chip has low blue light, when an eye protection mode is not needed, the conventional blue light chip is turned on, white light with high color gamut can be emitted by turning off the long-wave blue light chip, and normal blue light or eye protection blue light can be used in one LED package.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED packaging technical field, concretely is a kind of eye protection LED packaging structure with double mode structure. BACKGROUND

[0002] LED packaging refers to the process of encapsulating LED chips and supports with epoxy resin or silicone and other materials. Specifically, it is to arrange, fix and connect LED chips and other components on the support or substrate, lead out the terminal, and encapsulate and fix through the plastic light-transmitting insulator medium, to form an overall three-dimensional structure, which provides protection and heat dissipation function for the normal work of the chip. With the wide application of LED technology, LED lamps play an increasingly important role in lighting and display fields. However, the blue light emitted by traditional LED lamps may cause potential harm to vision. The principle of existing eye protection LED lamps is that the blue light chip emits blue light after being powered on, part of the blue light is directly emitted, and the remaining blue light excites yellow phosphor to emit yellow light. Blue light and yellow light are mixed, and the human eye finally perceives white light. However, the ordinary LED eye protection lamps on the market often face the problem of reduced color gamut while pursuing low blue light to reduce eye damage, resulting in unsatisfactory light quality. If the low blue light design is abandoned, although a wider color gamut can be maintained, the eye protection function is lost, and it is difficult to find an ideal balance point between protecting vision and ensuring good lighting effect. SUMMARY

[0003] The utility model aims at providing an eye protection LED packaging structure with double mode structure to solve the problem of reduced color gamut while pursuing low blue light to reduce eye damage in the current market, resulting in unsatisfactory light quality. If the low blue light design is abandoned, although a wider color gamut can be maintained, the eye protection function is lost, and it is difficult to find an ideal balance point between protecting vision and ensuring good lighting effect.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an eye protection LED packaging structure with double mode structure, comprising:

[0005] a substrate;

[0006] a conductive component arranged on the top of the substrate;

[0007] insulating glue placed on the top of the conductive component;

[0008] a long-wave blue light chip arranged on the top of one of the insulating glues, with a wavelength of 455-480 nm;

[0009] A conventional blue light chip, a wavelength of the conventional blue light chip is 440-455nm, the conventional blue light chip is arranged on the top of another insulating glue;

[0010] A fluorescent layer, the fluorescent layer is arranged above the substrate, the fluorescent layer comprises a first glue and yellow fluorescent powder, the first glue is arranged on the top of the substrate, the first glue is connected with the outer side of the long-wave blue light chip and the conventional blue light chip, and the yellow fluorescent powder is arranged in the first glue.

[0011] As a preferred scheme of the utility model: still include second glue and third glue, second glue is fixedly connected in one side of first glue, third glue is fixedly connected in the other side of first glue, second glue is connected with the outer side of long-wave blue light chip, third glue is connected with the outer side of conventional blue light chip.

[0012] As a preferred scheme of the utility model: still include dam, dam is fixedly connected on the top of substrate, first glue, second glue and third glue are fixedly connected with the inner side of dam.

[0013] As a preferred scheme of the utility model: the conductive assembly includes first metal substrate and second metal substrate, first metal substrate is symmetrically arranged on the top of substrate, second metal substrate is symmetrically arranged on the top of substrate, the long-wave blue light chip and conventional blue light chip are connected between first metal substrate and second metal substrate through metal wire, and first metal substrate and second metal substrate are connected with insulating glue.

[0014] As a preferred scheme of the utility model: the top of dam is fixedly connected with light transmission plate, first glue, second glue and third glue are fixedly connected with light transmission plate.

[0015] As a preferred scheme of the utility model: a plurality of conductive bottom openings are equidistantly formed in the bottom of substrate.

[0016] As a preferred scheme of the utility model: the yellow fluorescent powder is aluminate yellow-green fluorescent powder.

[0017] As a preferred scheme of the utility model: the yellow fluorescent powder is silicate (green fluorescent powder) and KSF fluorescent powder.

[0018] As a preferred scheme of the utility model: the yellow fluorescent powder is nitrogen oxide (β-type sialon green fluorescent powder) and KSF fluorescent powder.

[0019] As a preferred scheme of the utility model: the yellow fluorescent powder is nitride green powder and KSF fluorescent powder.

[0020] Compared with the prior art, the utility model discloses the beneficial effects are: the utility model discloses a colloid, yellow fluorescent powder, colloid no. 2 and colloid no. 3 are set up, realize long wave blue light chip or normal blue light chip after power on and send blue light, part blue light directly emits, the rest blue light excites yellow fluorescent powder in colloid no. 1, makes it send yellow light, and blue light mixes with yellow light, and the white light that human eye finally perceives is, wherein normal blue light chip and long wave blue light chip all have a switch and can control, when the mode of need eye protection is closed normal blue light chip power on, and the white light that long wave blue light chip excites has low blue light in this way, opens normal blue light chip when not need eye protection mode, and closes long wave blue light chip, and the white light of high color gamut can be sent, and normal blue light or eye protection blue light can be used in a LED package, and the light transmission plate is set up, realizes the protection of light transmission plate to fluorescent layer, and the protection treatment of LED package. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic diagram of the utility model;

[0022] Figure 2 It is front view of the utility model;

[0023] Figure 3 It is light illumination schematic diagram of the utility model.

[0024] In the drawing: 1, base plate;2, dam;3, conductive assembly;31, metal base plate no. 1;32, metal base plate no. 2;4, insulating glue;5, long wave blue light chip;6, metal wire;7, fluorescent layer;71, colloid no. 1;72, yellow fluorescent powder;73, colloid no. 2;74, colloid no. 3;8, light transmission plate;9, conductive bottom mouth;10, normal blue light chip. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0026] Please refer to Figures 1 to 3The utility model provides a technical scheme: a kind of eye protection LED packaging structure with double mode structure, comprising: substrate 1;Conductive component 3 is arranged at the top of substrate 1;Insulating glue 4 is placed in the top of conductive component 3;Long-wave blue light chip 5 is arranged at the top of one of insulating glue 4, and the wavelength of long-wave blue light chip 5 is 455-480nm;Conventional blue light chip 10 is arranged at the top of another insulating glue 4, and the wavelength of conventional blue light chip 10 is 440-455nm;Fluorescent layer 7 is placed above substrate 1, and fluorescent layer 7 includes primary colloid 71 and yellow phosphor 72, primary colloid 71 is arranged at the top of substrate 1, primary colloid 71 is connected with the outside of long-wave blue light chip 5 and conventional blue light chip 10, and yellow phosphor 72 is arranged in the inside of primary colloid 71.

[0027] It can be understood that the utility model Figure 3 In the utility model, B is blue light, Y is yellow light, W is white light, W1 is eye protection white light, W2 is normal high color gamut white light, long-wave blue light chip 5 and conventional blue light chip 10 emit blue light after electrification, part of blue light directly emits, and the rest blue light excites yellow phosphor 72 in primary colloid 71, so that yellow light is emitted, blue light and yellow light are mixed, and white light is finally perceived by human eye, and the switch of conventional blue light chip 10 and long-wave blue light chip 5 can be controlled, and the electrification state of conventional blue light chip 10 and long-wave blue light chip 5 is controlled by an electronic switch such as relay and MOSFET, and the switch can be integrated in the control circuit of LED packaging or as an independent external component, and when the mode of eye protection is needed, conventional blue light chip 10 is closed, so that white light excited by long-wave blue light chip 5 has low blue light, and when the mode of eye protection is not needed, conventional blue light chip 10 is opened, so that high color gamut white light can be emitted, if conventional blue light chip 10 is closed, the wavelength range of blue light is generally between 400-500nm, and the blue light mainly concentrated in the short wavelength region of 400-450nm is harmful to human eye, by selecting long-wave blue light chip 5 with peak wavelength between 450-480nm, the generation of harmful short wavelength blue light can be reduced from the source, and after being matched with yellow phosphor 72, yellow light generated by long-wave blue light chip 5 and yellow phosphor 72 can form softer and more comfortable white light, and the content of harmful blue light is significantly reduced, so that the effect of eye protection light is realized, and if conventional blue light chip 10 is opened, normal high color gamut white light can be generated, the present light source is long-wave blue light chip 5 with peak wavelength between 450-480nm and conventional blue light chip 10 with the wavelength range of blue light between 400-500nm, normal blue light or eye protection blue light can be used in one LED packaging, and the switch is arranged in double reverse single channel LED arrangement, so that the switching effect is realized.

[0028] Please refer to Figures 1 to 3Further comprising a second glue body 73 and a third glue body 74, the second glue body 73 is fixedly connected to one side of the first glue body 71, and the third glue body 74 is fixedly connected to the other side of the first glue body 71, the second glue body 73 is connected to the outer side of the long-wave blue light chip 5, and the third glue body 74 is connected to the outer side of the conventional blue light chip 10.

[0029] It can be understood that the utility model discloses through the third glue body 74 to the light emitting of conventional blue light chip 10 normal light transmission, through the second glue body 73 to the light emitting of insulating glue 4 normal light transmission.

[0030] Please refer to Figures 1 to 3 Further comprising a dam 2, the dam 2 is fixedly connected to the top of the substrate 1, and the first glue body 71, the second glue body 73 and the third glue body 74 are all fixedly connected to the inner side of the dam 2.

[0031] It can be understood that the utility model discloses through the dam 2 to support and fix the overall structure.

[0032] Please refer to Figures 1 to 3 The conductive assembly 3 comprises a first metal substrate 31 and a second metal substrate 32, the first metal substrate 31 is symmetrically arranged on the top of the substrate 1, the second metal substrate 32 is symmetrically arranged on the top of the substrate 1, the long-wave blue light chip 5 and the conventional blue light chip 10 are connected with the first metal substrate 31 and the second metal substrate 32 through the metal wire 6, and the first metal substrate 31 and the second metal substrate 32 are connected with the insulating glue 4.

[0033] It can be understood that the utility model discloses through the first metal substrate 31, the second metal substrate 32 and the long-wave blue light chip 5, the conventional blue light chip 10 are connected through the metal wire 6, and the power-on treatment is completed.

[0034] Please refer to Figures 1 to 3 The top of the dam 2 is fixedly connected with a light transmission plate 8, and the first glue body 71, the second glue body 73 and the third glue body 74 are all fixedly connected with the light transmission plate 8.

[0035] It can be understood that the utility model discloses through the light transmission plate 8 to the protection treatment of fluorescent layer 7, improves the LED package stability.

[0036] Please refer to Figures 1 to 3 A plurality of conductive bottom openings 9 are equidistantly formed in the bottom of the substrate 1.

[0037] It can be understood that the utility model discloses through the conductive bottom opening 9, and the external wire is conveniently connected for power-on treatment.

[0038] Please refer to Figures 1 to 3 The yellow fluorescent powder 72 is aluminate yellow-green fluorescent powder.

[0039] Please refer to Figures 1 to 3The yellow fluorescent powder 72 is a silicate (green fluorescent powder) and a KSF fluorescent powder.

[0040] Please refer to Figures 1 to 3 The yellow fluorescent powder 72 is a nitride green powder and a KSF fluorescent powder.

[0041] Please refer to Figures 1 to 3 Figures 1 to 3 The yellow fluorescent powder 72 is a nitride green powder and a KSF fluorescent powder.

[0042] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.

[0044] In the utility model, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise expressly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning of the specific situation by the ordinary skilled in the art.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An eye-care LED package structure with a dual-mode structure, characterized in that, It includes: a substrate (1); a conductive assembly (3) arranged on the top of the substrate (1); an insulating glue (4) arranged on the top of the conductive assembly (3); a long-wave blue light chip (5) arranged on the top of one of the insulating glues (4), the wavelength of the long-wave blue light chip (5) being 455-480nm; a conventional blue light chip (10) arranged on the top of the other insulating glue (4), the wavelength of the conventional blue light chip (10) being 440-455nm; a fluorescent layer (7) arranged above the substrate (1), the fluorescent layer (7) including a first glue (71) arranged on the top of the substrate (1), the first glue (71) being connected with the outer side of the long-wave blue light chip (5) and the conventional blue light chip (10), and the inside of the first glue (71) being provided with a yellow fluorescent powder (72). 2.The eye-care LED package structure with dual-mode structure according to claim 1, wherein: It also includes a second glue (73) and a third glue (74), the second glue (73) being fixedly connected to one side of the first glue (71), the other side of the first glue (71) being fixedly connected with the third glue (74), the second glue (73) being connected with the outer side of the long-wave blue light chip (5), and the third glue (74) being connected with the outer side of the conventional blue light chip (10). 3.The eye-care LED package structure with dual-mode structure according to claim 2, wherein: It also includes a dam (2) fixedly connected to the top of the substrate (1), the first glue (71), the second glue (73) and the third glue (74) being fixedly connected with the inner side of the dam (2).

4. The eye-care LED package structure with dual-mode structure according to claim 1, characterized in that: The conductive assembly (3) includes a first metal substrate (31) and a second metal substrate (32), the first metal substrate (31) being symmetrically arranged on the top of the substrate (1), the top of the substrate (1) being symmetrically provided with the second metal substrate (32), the long-wave blue light chip (5) and the conventional blue light chip (10) being connected with the first metal substrate (31) and the second metal substrate (32) through metal wires (6), and the first metal substrate (31) and the second metal substrate (32) being connected with the insulating glue (4).

5. The eye-protecting LED package structure with dual-mode structure according to claim 3, characterized in that: The top of the dam (2) is fixedly connected with a light-transmitting plate (8), the first glue (71), the second glue (73) and the third glue (74) being fixedly connected with the light-transmitting plate (8).

6. The eye-protecting LED package structure with dual-mode structure according to claim 1, characterized in that: The bottom of the substrate (1) is provided with a plurality of conductive bottom openings (9) equidistantly.

7. The eye-protecting LED package structure with dual-mode structure according to claim 1, characterized in that: The yellow fluorescent powder (72) is an aluminate yellow-green fluorescent powder.

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