CN213878138U - Promote point of LED lamp pearl reliability and glue structure - Google Patents
Promote point of LED lamp pearl reliability and glue structure Download PDFInfo
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- CN213878138U CN213878138U CN202022629725.0U CN202022629725U CN213878138U CN 213878138 U CN213878138 U CN 213878138U CN 202022629725 U CN202022629725 U CN 202022629725U CN 213878138 U CN213878138 U CN 213878138U
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Abstract
The utility model discloses a dispensing structure for improving the reliability of LED lamp beads, which comprises a bracket bowl cup, a chip, a bonding alloy wire, a crystal fixing adhesive, a fluorescent adhesive and a white adhesive, wherein the chip is fixed at the bottom in the bracket bowl cup through the crystal fixing adhesive; the negative electrode of the chip is connected to one side of the negative electrode of the bracket through a bonding gold wire at the other side; the anode of the chip is connected with one side of the anode of the bracket through a bonding gold wire at one side to form a series circuit; fluorescent glue is not completely filled in the bracket bowl cup, and a layer of white glue is filled above the fluorescent glue. The utility model has convenient operation, effective design and simple manufacture procedure; after a certain amount of fluorescent glue is filled in the bowl cup, a certain amount of white glue is filled in the bowl cup, Mn4+ ions in the isolated fluorescent glue and moisture in the air are subjected to hydrolysis reaction, and the effects of improving the reliability of the LED lamp beads and prolonging the service life of an LED device are achieved.
Description
Technical Field
The utility model relates to a LED encapsulation technical field, concretely relates to promote point of LED lamp pearl reliability and glue structure.
Background
Due to the advantages of energy conservation, environmental protection and good color rendering property, the LED lamp is helped to quickly occupy the market and develop rapidly. LED devices are widely used in signal indication applications, display applications, and lighting applications. With the rapid development of LED lamps, upstream raw material manufacturers are developing continuously and new. Among them, several fluorescent glues are receiving much attention due to their superior luminescence properties. In particular, in the case of a liquid crystal display backlight, it is required that the light emitting materials (blue, green, and red) have as narrow an emission bandwidth as possible and an appropriate emission wavelength, thereby obtaining high color purity and a wide color gamut (> 92% NTSC), which is difficult to satisfy with the currently commercially available nitride red fluorescent glue. In recent years, the Mn4+ ion doped fluoride fluorescent glue has attracted attention due to the advantages of being effectively excited by blue light, high in luminous efficiency, capable of emitting sharp spectral lines of 630nm (the bandwidth is less than 7nm) and the like, and has good application prospects in the field of high-display illumination. However, the moisture resistance of such materials is generally poor, mainly because Mn4+ ions on the surface of the material are susceptible to hydrolysis reaction with moisture in the air, resulting in material degradation and affecting the lifetime of the final LED device, which also becomes the biggest challenge to hinder the commercial application thereof.
To sum up, the utility model discloses a promote point of LED lamp pearl reliability and glue structure.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model aims to provide a dispensing structure and a process for improving the reliability of LED lamp beads, which have the advantages of convenient operation, effective design and simple manufacture procedure; after a certain amount of fluorescent glue is filled in the bowl cup, a certain amount of white glue is filled in the bowl cup, Mn4+ ions in the isolated fluorescent glue and moisture in the air are subjected to hydrolysis reaction, and the effects of improving the reliability of the LED lamp beads and prolonging the service life of an LED device are achieved.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a dispensing structure for improving the reliability of an LED lamp bead comprises a support bowl cup, a chip, a bonding alloy wire, a die bond adhesive, a fluorescent adhesive and a white adhesive, wherein the chip is fixed at the bottom in the support bowl cup through the die bond adhesive; the negative electrode of the chip is connected to one side of the negative electrode of the bracket through a bonding gold wire at the other side; the anode of the chip is connected with one side of the anode of the bracket through a bonding gold wire at one side to form a series circuit; fluorescent glue is not completely filled in the bracket bowl cup, and a layer of white glue is filled above the fluorescent glue.
Preferably, a white channel is embedded and fixed in the bracket bowl cup and is arranged between the anode and the cathode of the bracket; fluorescent glue is arranged on the surface of the chip and is excited and compounded by the chip to generate white light.
Preferably, the chip may be provided in plurality.
The utility model discloses to the characteristic that Mn4+ ion easily takes place hydrolysis reaction with the moisture in the air among the fluoride fluorescent glue, fill out at fluorescent glue 6 and establish behind the bowl cup of support bowl cup 1, fill out again and establish one deck white glue 7, make fluorescent glue 6 unable with the moisture contact in the air, fluorescent glue 6 fills out and has established the back and must carry out high temperature and toast and make the colloid solidification, prevent the Mn in the fluorescent glue 64+The ions undergo molecular motion into the white glue 7.
The utility model has the advantages that: the utility model discloses can completely cut off fluorescent glue and external contact to promote the reliability that special material fluorescent glue, increase LED lamp pearl reliability, the practicality is stronger, the utility model has the advantages of simple structure sets up rationally, and the cost of manufacture is low.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a schematic view of a conventional LED light-emitting device support bowl cup, a chip, die bond glue, a bond alloy wire, and a connection structure;
FIG. 2 is a schematic cross-sectional view of a conventional LED dispensing process;
fig. 3 is a schematic sectional structure of the present invention;
fig. 4 is another perspective structural view of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 3 to 4, the following technical solutions are adopted in the present embodiment: a dispensing structure for improving the reliability of an LED lamp bead comprises a support bowl cup 1, a chip 2, a bonding alloy wire 3, a die bond 4, a white channel 5, a fluorescent glue 6 and a white glue 7, wherein the chip 2 is fixed at the bottom in the support bowl cup 1 through the die bond 4; the positive electrode and the negative electrode of the chip 2 are welded and connected with one end of the bonding alloy wire 3; the other ends of the bonding alloy wires 3 are respectively welded and fixed in the positive and negative electrode regions of the bracket; the fluorescent glue 6 is filled in the bracket bowl and is not completely filled, and the fluorescent glue 6 is not completely cured through high-temperature baking to be in a semisolid state; white glue 7 is filled above the fluorescent glue 6, the white glue 7 is filled in the bowl cup of the bracket bowl cup 1, and the white glue 7 is solidified by high-temperature baking after centrifugal leveling above the fluorescent glue 6; a white channel 5 is embedded and fixed in the bracket bowl cup 1, and the white channel 5 is arranged between the anode and the cathode of the bracket; the surface of the chip 2 is provided with fluorescent glue 6, and the fluorescent glue 6 is excited and compounded by the chip 2 to generate white light; the white glue 7 covers above the fluorescent glue 6, isolates the path of the fluorescent glue 6 contacting with the outside, and prevents the fluorescent glue from directly contacting with the outside and deliquescing, thereby improving the reliability of the fluorescent glue made of special materials.
The working principle of the specific embodiment is as follows: cover white 7 with glue in 6 tops of fluorescent glue, present one deck film "protection film" on the fluorescent glue to isolated fluorescent glue in 6 fluorescent glue and external contact reduce the deliquescence of fluoride, make the reliability of fluorescent glue obtain promoting, then further promote the reliability of LED lamp pearl. After the encapsulation is finished, the color consistency of the LED lamp beads is good, the color temperature is concentrated, and the universality of the LED lamp beads is consistent with that of the LED lamp light source in the market.
This embodiment carries out white glue again and fills after filling fluorescent glue, and white glue covers the inside fluorescent glue of support, isolates the Mn in the fluorescent glue4+The ions and the moisture in the air are subjected to hydrolysis reaction, and the method has the advantages of simple operation, reasonable arrangement and the like.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A dispensing structure for improving the reliability of an LED lamp bead is characterized by comprising a support bowl cup (1), a chip (2), a bonding gold wire (3), a die bond adhesive (4), a fluorescent adhesive (6) and a white adhesive (7), wherein the chip (2) is fixed at the bottom in the support bowl cup (1) through the die bond adhesive (4); the negative electrode of the chip (2) is connected to one side of the negative electrode of the bracket through a bonding alloy wire (3) at the other side; the anode of the chip (2) is connected with one side of the anode of the bracket through a bonding alloy wire (3) at one side to form a series circuit; fluorescent glue (6) is not completely filled in the bracket bowl (1), and a layer of white glue (7) is filled above the fluorescent glue (6).
2. The dispensing structure for improving the reliability of the LED lamp bead according to claim 1, wherein a white channel (5) is embedded and fixed in the support bowl (1), and the white channel (5) is arranged between the anode and the cathode of the support; fluorescent glue (6) is arranged on the surface of the chip (2), and the fluorescent glue (6) is excited and compounded by the chip (2) to generate white light.
3. The dispensing structure for improving the reliability of an LED lamp bead according to claim 1, wherein a plurality of chips (2) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022629725.0U CN213878138U (en) | 2020-11-13 | 2020-11-13 | Promote point of LED lamp pearl reliability and glue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022629725.0U CN213878138U (en) | 2020-11-13 | 2020-11-13 | Promote point of LED lamp pearl reliability and glue structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213878138U true CN213878138U (en) | 2021-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022629725.0U Active CN213878138U (en) | 2020-11-13 | 2020-11-13 | Promote point of LED lamp pearl reliability and glue structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213878138U (en) |
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2020
- 2020-11-13 CN CN202022629725.0U patent/CN213878138U/en active Active
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