CN220856602U - Magic color lamp bead - Google Patents

Abstract

The utility model discloses a magic color lamp bead, which comprises a lead frame, wherein the lead frame comprises a substrate, the front surface of the substrate is provided with a bowl cup, the inner surface of the bowl cup is provided with a reflecting layer, the front surface of the substrate is also provided with a light-emitting chip, the light-emitting chip is positioned in the bowl cup, and the lead frame further comprises a drive IC chip arranged on the back surface of the substrate, and the drive IC chip is electrically connected with the light-emitting chip. The driving IC chip is arranged on the back of the base plate, so that the driving IC chip can not shade or absorb light rays emitted by the light emitting chip and reflected light rays reflected by the reflecting layer, and meanwhile, the effective reflecting area in the bowl cup is enlarged, thereby being beneficial to improving the light emitting efficiency of the multicolor lamp bead.

Description

Magic color lamp bead

Technical Field

The utility model relates to the technical field of LED products, in particular to a magic color lamp bead.

Background

The luminous IC multicolor diode (multicolor lamp bead) has the advantages of large luminous angle, high production efficiency, light weight, small volume, consistent luminous height and the like, can realize any multicolor and dazzling effect, and can lead consumer products to be more cool and dazzling and have more intelligent sense, so the luminous IC multicolor diode is widely applied.

The Chinese patent application number 202022260907.5 discloses a built-in IC magic color lamp bead, which comprises a lead frame, a light-emitting chip, a driving IC chip and a bonding wire, wherein the front surface of the lead frame is provided with a bowl cup, the inner surface of the bowl cup is a reflecting surface, and the light-emitting chip and the driving IC chip which are electrically connected are simultaneously positioned in the bowl cup. This solution has a significant drawback: the arrangement of the driving IC chip in the bowl cup can shield and absorb light rays, and reduces the effective reflection area in the bowl cup, so that the light emitting efficiency of the multicolor lamp beads is affected.

Disclosure of utility model

The technical problems solved by the utility model are as follows: provides a magic color lamp bead with high light-emitting efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a magical color lamp pearl, includes the lead frame, the lead frame includes the base plate, the front of base plate has the bowl cup, and the internal surface of bowl cup is equipped with the reflection stratum, the front of base plate still is equipped with the luminescence chip, the luminescence chip is located in the bowl cup, still including locating the drive IC chip of the back of base plate, drive IC chip with luminescence chip electric connection.

In an embodiment, the driving IC chip is mounted in a forward direction, the substrate is provided with a via hole, and the light emitting chip is electrically connected with the driving IC chip through a bonding wire penetrating through the via hole.

In an embodiment, the driving IC chip is reversely mounted, the substrate is provided with a via hole, and the light emitting chip is electrically connected with the driving IC chip through the via hole.

In an embodiment, the via hole is a metallized hole, the back surface of the substrate has a pad electrically connected to the via hole, and the driving IC chip is electrically connected to the pad.

In an embodiment, the light emitting chips include a red LED chip, a blue LED chip, and a green LED chip.

In an embodiment, the substrate is provided with an anode pad, a cathode pad, a signal input connection pad and a signal output connection pad, one side of the bottom of the lead frame is provided with an anode pin connected with the anode pad and a signal output pin connected with the signal output connection pad, the other side of the bottom of the lead frame is provided with a cathode pin connected with the cathode pad and a signal input pin connected with the signal input connection pad, the light emitting chip is arranged on the anode pad and is electrically connected with the anode pad, and the driving IC chip is arranged on the cathode pad and is electrically connected with the cathode pad; the signal input end and the signal output end of the driving IC chip are respectively connected with the signal input connection pad and the signal output connection pad.

In one embodiment, the driving IC chip has an intelligent reverse connection protection circuit.

The utility model has the beneficial effects that: the driving IC chip is arranged on the back of the base plate, so that the driving IC chip can not shade or absorb light rays emitted by the light emitting chip and reflected light rays reflected by the reflecting layer, and meanwhile, the effective reflecting area in the bowl cup is enlarged, thereby being beneficial to improving the light emitting efficiency of the multicolor lamp bead.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a color light bulb according to a first embodiment of the present utility model;

Fig. 2 is a bottom view of a color-changing light bulb according to a first embodiment of the utility model;

fig. 3 is a bottom view of a magic color lamp bead according to a second embodiment of the utility model.

Reference numerals illustrate:

1. a lead frame; 11. a substrate; 12. a bowl cup; 13. a via hole;

21. a red LED chip; 22. a blue LED chip; 23. a green LED chip;

3. A driving IC chip;

4. A positive electrode pad; 41. a positive electrode pin;

5. A negative electrode pad; 51. a negative electrode pin;

6. A signal input connection pad; 61. a signal input pin;

7. a signal output connection pad; 71. a signal output pin;

8. And (5) bonding wires.

Detailed Description

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1 and 2, a first embodiment of the utility model is as follows: the utility model provides a magical color lamp pearl, includes lead frame 1, lead frame 1 includes base plate 11, the front of base plate 11 has bowl cup 12, and bowl cup 12's internal surface is equipped with the reflection stratum, the front of base plate 11 still is equipped with the luminescence chip, the luminescence chip is located in bowl cup 12, still including locating the drive IC chip 3 of the back of base plate 11, drive IC chip 3 with luminescence chip electric connection.

Specifically, the substrate 11 is provided with a positive electrode pad 4, a negative electrode pad 5, a signal input connection pad 6 and a signal output connection pad 7, one side of the bottom of the lead frame 1 is provided with a positive electrode pin 41 connected with the positive electrode pad 4 and a signal output pin 71 connected with the signal output connection pad 7, and the other side of the bottom of the lead frame 1 is provided with a negative electrode pin 51 connected with the negative electrode pad 5 and a signal input pin 61 connected with the signal input connection pad 6; optionally, the light emitting chip is disposed on the positive electrode pad 4 and is electrically connected to the positive electrode pad 4, and the driving IC chip 3 is disposed on the negative electrode pad 5 and is electrically connected to the negative electrode pad 5; the signal input terminal of the driving IC chip 3 is connected to the signal input connection pad 6, and the signal output terminal of the driving IC chip 3 is connected to the signal output connection pad 7.

More specifically, the light emitting chip includes a red LED chip 21, a blue LED chip 22 and a green LED chip 23, the red LED chip 21, the blue LED chip 22 and the green LED chip 23 are electrically connected to the positive electrode pad 4, respectively, and the red LED chip 21, the blue LED chip 22 and the green LED chip 23 are electrically connected to the driving IC chip 3.

In this embodiment, the driving IC chip 3 is mounted in a forward direction, the substrate 11 is provided with a via hole 13, and the light emitting chip is electrically connected to the driving IC chip 3 through a bonding wire 8 penetrating through the via hole 13.

Optionally, the driving IC chip 3 has an intelligent reverse connection protection circuit, and the intelligent reverse connection protection circuit can implement intelligent reverse connection protection, so that the power supply reverse connection cannot damage the driving IC chip 3.

Example two

Referring to fig. 3, the second embodiment of the present utility model is a parallel solution of the first embodiment, and is different from the first embodiment in that the mounting manner of the driving IC chip 3 is different, specifically:

The driving IC chip 3 is reversely mounted, the substrate 11 is provided with a via hole, and the light emitting chip is electrically connected with the driving IC chip 3 through the via hole.

Specifically, the via hole is a metallized hole, the back surface of the substrate 11 has a pad electrically connected to the via hole, and the driving IC chip 3 is electrically connected to the pad.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (7)

1. The utility model provides a magical color lamp pearl, includes lead frame, lead frame includes the base plate, the front of base plate has the bowl cup, and the internal surface of bowl cup is equipped with the reflection stratum, the front of base plate still is equipped with the luminescence chip, the luminescence chip is located in the bowl cup, its characterized in that: the LED display device further comprises a drive IC chip arranged on the back surface of the substrate, and the drive IC chip is electrically connected with the light-emitting chip.

2. The illusive color light bead of claim 1, wherein: the driving IC chip is installed forward, the substrate is provided with a via hole, and the light emitting chip is electrically connected with the driving IC chip through a bonding wire penetrating through the via hole.

3. The illusive color light bead of claim 1, wherein: the driving IC chip is reversely installed, the substrate is provided with a via hole, and the light emitting chip is electrically connected with the driving IC chip through the via hole.

4. The illusive color light bead of claim 3, wherein: the via hole is a metallization hole, a bonding pad electrically connected with the via hole is arranged on the back surface of the substrate, and the driving IC chip is electrically connected with the bonding pad.

5. The illusive color light bead of claim 1, wherein: the light-emitting chip comprises a red light LED chip, a blue light LED chip and a green light LED chip.

6. The illusive color light bead of claim 1, wherein: the LED driving circuit comprises a substrate, a driving IC chip, a substrate, a driving IC chip and a driving IC chip, wherein the substrate is provided with an anode bonding pad, a cathode bonding pad, a signal input connection bonding pad and a signal output connection bonding pad; the signal input end and the signal output end of the driving IC chip are respectively connected with the signal input connection pad and the signal output connection pad.

7. The illusive color light bead of claim 6, wherein: the driving IC chip is provided with an intelligent reverse connection protection circuit.