CN216902943U - Multicolor LED lamp bead - Google Patents
Multicolor LED lamp bead Download PDFInfo
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- CN216902943U CN216902943U CN202122984783.XU CN202122984783U CN216902943U CN 216902943 U CN216902943 U CN 216902943U CN 202122984783 U CN202122984783 U CN 202122984783U CN 216902943 U CN216902943 U CN 216902943U
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Abstract
The utility model relates to a multicolor LED lamp bead, in particular to an LED lamp bead which is manufactured by packaging a plurality of LED chips by a cup-shaped support, wherein at least one separation resin is arranged in the support cup to separate a support large cup into a plurality of shallow cups, the chips are respectively arranged in the shallow cups, the packaging glue is various, the chip in each shallow cup is sealed by the packaging glue, the packaging glue in each shallow cup is different, the packaging glue is also sealed on the upper layer of the whole large cup, the separation resin and the shallow cups are covered by the packaging glue, and each chip of the manufactured lamp bead emits light with different colors outwards. The lamp bead has the advantages that the light emitted by each chip independently penetrates through the packaging glue on the upper layer of the whole large cup and then emits light outwards, the light emitting surface of the light emitting chip is the light emitting surface of the packaging glue on the mouth of the large cup, and the light emitting area is large; after a plurality of chips are lighted simultaneously, the emitted light can be mixed in the upper-layer packaging glue of the large cup and then is emitted outwards, and the light emitted outwards is mixed more uniformly.
Description
Technical Field
The utility model relates to the field of LEDs, in particular to a multicolor LED lamp bead.
Background
The chip manufacturing lamp bead for the LED industry can manufacture lamp beads emitting light with various colors, and the following two schemes are adopted:
firstly, directly manufacturing chips emitting light with different colors;
secondly, manufacturing by using packaging glue which generates light with different colors;
when the multi-color lamp beads are made of the packaging glue which generates light with different colors, the packaging glue of several colors is completely separated on the lamp beads in the prior art, such as the drawings (figure 1, figure 8 and figure 14).
The lamp bead product manufactured by the prior art has two defects:
when each color independently emits light, the light emitting surface of the lamp bead is small;
secondly, when multiple colors emit light simultaneously, the emitted light needs to have a more uniform and better light mixing effect, however, the light emitted by the multiple chips of the lamp bead is transmitted to the air or is dispersed in the space and then is mixed, so the light mixing effect is poor;
the utility model discloses the following technology, the multicolor lamp bead (lamp bead with two colors or more than two colors) is manufactured, and the problem of small luminous surface when the independent single color is independently lightened is solved; the problem of poor light mixing during simultaneous lighting is solved, as follows:
a manufacturing method of a multicolor LED lamp bead comprises the steps of manufacturing an LED support with a cup, arranging at least one piece of separating resin (1.2a, 4.2a and 7.2a) in the middle, enabling the height of the separating resin to be lower than that of outer cup resin (1.2, 4.2 and 7.2), enabling the LED support to form n small shallow cups in the cup, enabling n to be larger than or equal to 2, respectively fixing at least two LED chips on electrodes in the at least two shallow cups and forming conduction connection with the electrodes, respectively applying different packaging glue in each shallow cup, applying a packaging glue after heating and solidifying to form outer layer packaging glue, covering the surface of the packaging glue in each shallow cup, enabling the separating resin to be covered by the packaging glue after heating and solidifying the packaging glue, or applying n-1 packaging glue in n-1 shallow cups respectively, applying a packaging glue after heating and solidifying to enter the nth shallow cup to cover the chip in the nth shallow cup, meanwhile, the surface of the packaging adhesive in n-1 shallow cups of the existing packaging adhesive is covered, the outer packaging adhesive is exposed out of the large cup opening, all the packaging adhesive is cured by heating, the multicolor LED lamp bead is manufactured, light emitted by all chips of the lamp bead penetrates through the outer packaging adhesive and then is emitted outwards, and the light emitting surface is large. The lamp beads can respectively light one chip to respectively emit light with different colors, or can simultaneously light at least two chips to emit light outwards after light mixing in the outer-layer packaging adhesive, and therefore the LED lamp has a good uniform light mixing effect.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a multicolor LED lamp bead, in particular to an LED lamp bead which is manufactured by packaging a plurality of LED chips by a cup-shaped support, wherein at least one separation resin is arranged in the support cup to separate a support large cup into a plurality of shallow cups, the chips are respectively arranged in the shallow cups, the packaging glue is various, the chip in each shallow cup is sealed by the packaging glue, the packaging glue in each shallow cup is different, the packaging glue is also sealed on the upper layer of the whole large cup, the separation resin and the shallow cups are covered by the packaging glue, and each chip of the manufactured lamp bead emits light with different colors outwards. The lamp bead has the advantages that the light emitted by each chip independently penetrates through the packaging glue on the upper layer of the whole big cup and then emits light outwards, the light emitting surface of the light emitting chip is the light emitting surface of the packaging glue on the mouth of the big cup, and the light emitting area is large; after a plurality of chips are lighted simultaneously, the emitted light can be mixed in the upper-layer packaging adhesive of the large cup and then is emitted outwards, and the light emitted outwards is mixed more uniformly.
The utility model provides a multicolor LED lamp bead, which comprises: an LED support; a plurality of LED chips; a plurality of packaging glues; the LED support is an LED support with a cup, a separating resin is arranged in the cup, the separating resin is lower than the outer cup resin, the separating resin separates the support cup to form two small shallow cups, two LED chips are respectively fixed on metal electrodes of the two shallow cups and are in conductive connection with the electrodes, a chip is arranged in one shallow cup, two kinds of packaging glue are respectively sealed in the two shallow cups, only one kind of packaging glue is exposed at the opening of the large cup to form outer layer packaging glue, the packaging glue covers the separating resin, the two small shallow cups are covered by the packaging glue, light emitted by the two chips firstly penetrates through the outer layer packaging glue and then is emitted outwards, the multicolor LED lamp beads can respectively lighten one chip to respectively emit light with different colors, or can simultaneously lighten the two chips, the emitted light is mixed in the outer layer packaging glue and then is emitted outwards, the lamp bead can emit light with various colors.
The utility model provides a multicolor LED lamp bead, which comprises: an LED support; a plurality of LED chips; a plurality of packaging glues; the LED support is characterized in that the LED support is an LED support with a cup, a separating resin is arranged in the cup, the height of the separating resin is lower than that of an outer cup resin, the separating resin separating support cup forms two small shallow cups, two metal electrodes are arranged in one shallow cup, six metal electrodes are arranged in the other shallow cup, a blue LED chip is fixed on one metal electrode and is in conductive connection with the two metal electrodes in the shallow cup with the two metal electrodes, yellow packaging glue is sealed on the blue LED chip in the shallow cup, three red, green and blue LED chips are respectively fixed on the electrodes in the shallow cup with the six electrodes, each LED chip is in conductive connection with the two electrodes, the other colorless or white packaging glue is sealed in the shallow cups of the three chips and is covered on the surfaces of the separating resin and the yellow packaging glue, the multicolor LED lamp beads can respectively light one chip to respectively emit light with different colors or can light at least two chips simultaneously, the emitted light is mixed in the outer-layer packaging adhesive and then emitted outwards, and the lamp beads can emit light with various colors.
The utility model provides a multicolor LED lamp bead, which comprises: an LED support; a plurality of LED chips; a plurality of packaging glues; the LED support is characterized in that the LED support is an LED support with a cup, two separating resins are arranged in the cup, the height of the separating resins is lower than that of the outer cup resin, the separating resins are separated to form three small shallow cups, two metal electrodes are respectively arranged in the two shallow cups, six metal electrodes are arranged in the other shallow cup, a blue LED chip is respectively fixed on one metal electrode and is respectively in conductive connection with the two electrodes in the two shallow cups, two yellow packaging glues are respectively sealed on the blue LED chip in the two shallow cups with the two metal electrodes, three chips which respectively emit red light, green light and blue light are respectively fixed on the electrodes in the shallow cups with the six electrodes, each chip is respectively in conductive connection with the two electrodes, the other white or colorless packaging glue is sealed in the shallow cups of the three chips, also covered the surface of separating the resin surface and two kinds of yellow encapsulation glues simultaneously to expose at the big glass mouth of support, form outer encapsulation and glue, polychrome LED lamp pearl, the light that each chip sent all need pass outer encapsulation earlier and glue and outwards send, polychrome LED lamp pearl, can light a chip respectively and send the light of different colours respectively, perhaps can light two at least chips simultaneously, the light that sends is sent outwards again after mixing in outer encapsulation glues, the lamp pearl can send the light of multiple colour.
According to a preferred embodiment of the utility model, the multicolor LED lamp bead is characterized in that the outer layer packaging glue is different from the packaging glue in each shallow cup.
According to a preferred embodiment of the utility model, the multicolor LED lamp bead is characterized in that the outer layer packaging adhesive is the same as the packaging adhesive in one of the shallow cups.
According to a preferred embodiment of the utility model, the multicolor LED lamp bead is characterized in that a plurality of welding feet are arranged outside the lamp bead and are respectively connected with a plurality of electrodes in the support cup.
According to a preferred embodiment of the utility model, the multicolor LED lamp bead is characterized in that the LED chip is a normally mounted LED chip, and the conductive connection between the chip and the electrode is conducted by a wire bonding connection, or conducted by a conductive adhesive bonding connection.
According to a preferred embodiment of the utility model, the multicolor LED lamp bead is characterized in that the LED chip is a flip LED chip, and the connection and conduction between the chip and the electrode are conducted through soldering tin or through conductive adhesive.
The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below.
Drawings
The features, objects, and advantages of the present invention will become more apparent from the description set forth below when taken in conjunction with the drawings, a brief description of which follows.
Fig. 1 is a schematic cross-sectional view of a bi-color lamp bead in the prior art.
Fig. 2 is a schematic cross-sectional view of a two-color stand.
Fig. 3 is a schematic front view of a two-color stand.
Fig. 4 is a perspective view of a two-color stand.
Fig. 5 is a schematic cross-sectional view of a two-color bracket after die bonding and wire bonding.
Fig. 6 is a schematic cross-sectional view of the bi-color lamp bead manufactured by the method (i).
Fig. 7 is a schematic cross-sectional view of the bi-color lamp bead manufactured by the method (II).
Fig. 8 is a schematic cross-sectional view of a lamp bead of RGB + single white light in the prior art.
Fig. 9 is a schematic cross-sectional view of a RGB + single white dual-cup holder.
Fig. 10 is a schematic plan view of a RGB + single white dual-cup holder.
Fig. 11 is a perspective view of a RGB + single white dual-cup holder.
FIG. 12 is a schematic cross-sectional view of a RGB + single white light double-cup frame after die bonding and wire bonding.
Fig. 13 is a schematic cross-sectional view of a lamp bead manufactured by a double-cup bracket of RGB + single white light.
Fig. 14 is a schematic cross-sectional view of a lamp bead of RGB + double white light in the prior art.
Fig. 15 is a schematic cross-sectional view of an RGB + double white light three-cup holder.
Fig. 16 is a schematic plan view of an RGB + double white light three-cup holder.
Fig. 17 is a perspective view of an RGB + double white light three-cup holder.
Fig. 18 is a schematic cross-sectional view of the RGB + double white light three-cup support after die bonding and wire bonding.
Fig. 19 is a schematic cross-sectional view of a lamp bead manufactured by the RGB + double white light three-cup bracket.
Detailed Description
The present invention will be described in detail below by taking preferred embodiments as examples.
It will be understood by those skilled in the art that the following descriptions are provided for purposes of illustration and description of certain preferred embodiments only and are not intended to limit the scope of the present invention.
Example one
Manufacturing method of double-color lamp bead
1, manufacturing of two-color bracket
Punching a copper plate 1.1 with the thickness of 0.2mm by using a punch and a die to manufacture a support circuit prototype, after electroplating, injecting resin 1.2 by using an injection die to manufacture a cup-shaped support containing four welding feet, wherein the height of the cup wall is 0.4mm, the cup is internally provided with a separating resin, the height of the separating resin 1.2a is 0.2mm, the separating resin divides the large cup into two shallow small cups, and each small cup is internally provided with two metal electrodes (figure 2, figure 3 and figure 4).
2, die bonding wire
Two blue light chips 2.1 are respectively fixed on one electrode in two small cups by using crystal fixing glue and a crystal fixing machine, and then wire bonding is carried out by using a wire bonding machine of KS (figure 5) to respectively communicate the positive electrode and the negative electrode of the chip with the positive electrode and the negative electrode of the bracket.
3, preparation of packaging adhesive
Method 1
Respectively applying two kinds of silica gel 3.1a and 3.1b containing fluorescent powder into two small cups by using a dispenser, and heating for 60 minutes at 100 ℃ in an oven to pre-cure the silica gel until the silica gel does not flow.
Transparent silicone gel 3.1c was applied to fill the entire beaker with a dispenser, heated in an oven to 150 ℃ for 240 minutes to completely cure all the gel (fig. 6).
Firstly, a fluorescent powder glue 3.1a is applied in a small cup by a dispenser, the small cup is heated at 100 ℃ in an oven and baked for 60 minutes for precuring, then another fluorescent powder glue 3.1b is applied in another small cup, and the whole large cup is filled or nearly filled by continuously applying the fluorescent powder glue, at the moment, the fluorescent powder glue added later covers the surface of the fluorescent powder glue at the front, and the fluorescent powder glue is heated at 150 ℃ in the oven for 240 minutes to completely cure the two glues (figure 7).
Example two
Manufacture of RGB + single white light lamp bead
Manufacturing method of 1, RGB + single white light double-cup bracket
Punching a copper plate with the height of 0.2mm by using a punch and a die to form a support circuit prototype by 4.1 punching, after electroplating, injecting resin 4.2 by using an injection die to form a cup-shaped support with 8 welding feet, wherein the height of the cup wall is 0.5mm, a separating resin 4.2a is arranged in the cup, the height of the separating resin is 0.2mm, the separating resin divides the large cup into two small cups with smaller depth, one small cup is provided with 2 metal electrodes, and the other small cup is provided with 6 metal electrodes (figures 9, 10 and 11).
2, die bonding wire
A blue light chip 5.1a is fixed on one electrode in a small cup with two electrodes by crystal fixing glue and a crystal fixing machine, the blue light chip 5.1a and a green light chip 5.1c are fixed on the two electrodes of the other small cup by epoxy crystal fixing glue, a red light chip 5.1b is also fixed on the other electrode of the small cup by silver glue, the crystal fixing glue is heated to fix the bottom, then a wire welding machine of KS is used for welding wires, the positive electrode and the negative electrode of a blue-green light chip are respectively communicated with the positive electrode and the negative electrode of a bracket, the surface electrode of the red light chip is communicated with the other electrode of the bracket, and the bottom electrode of the red light is communicated with the bottom electrode through the silver glue (figure 12).
3, preparation of packaging adhesive
Firstly, a fluorescent powder glue 6.1a is applied to a small cup only provided with a blue light chip by a dispenser, the small cup is heated to 100 ℃ in an oven, the baking is carried out for 60 minutes for pre-curing, then another silica gel 6.1b is applied to another small cup, the another silica gel is continuously applied to fill or nearly fill the whole large cup, and at the moment, the later added silica gel covers the surface of the former fluorescent powder glue. Both glues were thoroughly cured by heating in an oven at 150 degrees celsius for 240 minutes (fig. 13).
EXAMPLE III
Manufacturing method of RGB (Red, Green, blue) and twelve white light lamp beads
Manufacturing method of 1, RGB (Red, Green, blue) twelve-white-light three-cup bracket
Punching a copper plate 7.1 with the thickness of 0.2mm by using a punch and a die to manufacture a support circuit prototype in a punching way, after electroplating, injecting resin 7.2 by using an injection die to manufacture a cup-shaped support containing 10 welding feet, wherein the height in the cup wall is 0.5mm, two separating resins 7.2a are arranged in the cup, the height of the separating resins is 0.2mm, the separating resins divide the big cup into three shallow small cups, 2 metal electrodes are arranged in the two small cups, and 6 metal electrodes are arranged in the other small cup (figure 15, figure 16 and figure 17).
2, die bonding wire
Two blue chips 8.1a are respectively fixed on one electrode in two small cups with two electrodes by crystal fixing glue and a crystal fixing machine, the blue chips 8.1a and the green chips 8.1c are fixed on the two electrodes of the other small cup by epoxy crystal fixing glue, a red chip 8.1b is also fixed on the other electrode of the small cup by silver glue, the crystal fixing glue is solidified by heating, then the welding wires are welded by a welding wire machine of KS, the positive and negative electrodes of a blue-green chip are respectively communicated with the positive and negative electrodes of a bracket, the surface electrode of the red chip is communicated with the other electrode of the bracket, and the bottom electrode of the red light is communicated with the bottom electrode through the silver glue (figure 18).
3, preparation of packaging adhesive
Firstly, two kinds of fluorescent powder glue 9.1a and 9.1b are respectively applied to two small cups only provided with blue light chips by a dispenser, the two kinds of fluorescent powder glue are heated to 100 ℃ in an oven, baked for 60 minutes and pre-cured, then another kind of silica gel 9.1c is applied to the other small cup, and the silica gel is continuously applied to fill or nearly fill the whole large cup, and at the moment, the later silica gel covers the surfaces of the two kinds of fluorescent powder glue. Both glues were cured thoroughly by heating in an oven at 150 degrees celsius for 240 minutes (fig. 19).
The utility model is described in detail with reference to the accompanying drawings. It will be understood by those skilled in the art, however, that the foregoing descriptions are merely illustrative of and descriptive of certain embodiments and that the utility model, including the claims, is not to be in any way limiting.
Claims (8)
1. A multi-colored LED lamp pearl includes:
an LED support;
a plurality of LED chips;
a plurality of packaging glues;
the LED support is an LED support with a cup, a separating resin is arranged in the cup, the separating resin is lower than the outer cup resin, the separating resin separates the support cup to form two small shallow cups, two LED chips are respectively fixed on metal electrodes of the two shallow cups and are in conductive connection with the electrodes, a chip is arranged in one shallow cup, two kinds of packaging glue are respectively sealed in the two shallow cups, only one kind of packaging glue is exposed at the opening of the large cup to form outer layer packaging glue, the packaging glue covers the separating resin, the two small shallow cups are covered by the packaging glue, light emitted by the two chips firstly penetrates through the outer layer packaging glue and then is emitted outwards, the multicolor LED lamp beads can respectively lighten one chip to respectively emit light with different colors, or can simultaneously lighten the two chips, the emitted light is mixed in the outer layer packaging glue and then is emitted outwards, the lamp bead can emit light with various colors.
2. A multi-colored LED lamp pearl includes:
an LED support;
a plurality of LED chips;
a plurality of packaging glues;
the LED support is characterized in that the LED support is an LED support with a cup, a separating resin is arranged in the cup, the height of the separating resin is lower than that of an outer cup resin, the separating resin separating support cup forms two small shallow cups, two metal electrodes are arranged in one shallow cup, six metal electrodes are arranged in the other shallow cup, a blue LED chip is fixed on one metal electrode and is in conductive connection with the two metal electrodes in the shallow cup with the two metal electrodes, yellow packaging glue is sealed on the blue LED chip in the shallow cup, three red, green and blue LED chips are respectively fixed on the electrodes in the shallow cup with the six electrodes, each LED chip is in conductive connection with the two electrodes, the other colorless or white packaging glue is sealed in the shallow cups of the three chips and is covered on the surfaces of the separating resin and the yellow packaging glue, the multicolor LED lamp beads can respectively light one chip to respectively emit light with different colors or can light at least two chips simultaneously, the emitted light is mixed in the outer-layer packaging adhesive and then emitted outwards, and the lamp beads can emit light with various colors.
3. A multi-colored LED lamp pearl includes:
an LED support;
a plurality of LED chips;
a plurality of packaging glues;
the LED support is characterized in that the LED support is an LED support with a cup, two separating resins are arranged in the cup, the height of the separating resins is lower than that of the outer cup resin, the separating resins are separated to form three small shallow cups, two metal electrodes are respectively arranged in the two shallow cups, six metal electrodes are arranged in the other shallow cup, a blue LED chip is respectively fixed on one metal electrode and is respectively in conductive connection with the two electrodes in the two shallow cups, two yellow packaging glues are respectively sealed on the blue LED chip in the two shallow cups with the two metal electrodes, three chips which respectively emit red light, green light and blue light are respectively fixed on the electrodes in the shallow cups with the six electrodes, each chip is respectively in conductive connection with the two electrodes, the other white or colorless packaging glue is sealed in the shallow cups of the three chips, also covered the surface of separating the resin surface and two kinds of yellow encapsulation glues simultaneously to expose at the big glass mouth of support, form outer encapsulation and glue, polychrome LED lamp pearl, the light that each chip sent all need pass outer encapsulation earlier and glue and outwards send, polychrome LED lamp pearl, can light a chip respectively and send the light of different colours respectively, perhaps can light two at least chips simultaneously, the light that sends is sent outwards again after mixing in outer encapsulation glues, the lamp pearl can send the light of multiple colour.
4. The multi-color LED lamp bead according to claim 1, wherein said outer layer of packaging glue is different from the packaging glue in each shallow cup.
5. The multi-color LED lamp bead according to claim 1, 2 or 3, wherein the outer layer of packaging glue is the same packaging glue as the packaging glue in one of the shallow cups.
6. The multi-color LED lamp bead according to claim 1, 2 or 3, characterized in that a plurality of solder feet are arranged outside the lamp bead, and the plurality of solder feet are respectively connected with a plurality of electrodes in the support cup.
7. The multi-color LED lamp bead according to claim 1, 2 or 3, wherein the LED chip is a normally mounted LED chip, and the conductive connection between the chip and the electrode is a bonding wire connection or a conductive adhesive connection.
8. The multi-color LED lamp bead according to claim 1, 2 or 3, wherein the LED chip is a flip-chip LED chip, and the connection between the chip and the electrodes is conducted by soldering or by conductive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122984783.XU CN216902943U (en) | 2021-11-24 | 2021-11-24 | Multicolor LED lamp bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122984783.XU CN216902943U (en) | 2021-11-24 | 2021-11-24 | Multicolor LED lamp bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216902943U true CN216902943U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122984783.XU Active CN216902943U (en) | 2021-11-24 | 2021-11-24 | Multicolor LED lamp bead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216902943U (en) |
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2021
- 2021-11-24 CN CN202122984783.XU patent/CN216902943U/en active Active
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