CN210778594U

CN210778594U - Full-color LED lamp bead

Info

Publication number: CN210778594U
Application number: CN201921666555.4U
Authority: CN
Inventors: 唐勇
Original assignee: YLin Electronics Co ltd
Current assignee: YLin Electronics Co ltd; Yonglin Electronics Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-16
Anticipated expiration: 2029-10-08

Abstract

The utility model relates to a full-color LED lamp pearl. The full-color LED lamp bead comprises a bracket; a positive/negative pin; a light emitting chip; a first IC control chip; the second IC control chip is arranged at the position, in the mounting groove, of the negative pin, the output end of the second IC control chip is connected with the negative pin, and the input end of the second IC control chip is connected with the output end of the light-emitting chip; and the fluorescent glue is arranged in the mounting groove and encapsulates the light-emitting chip, the first IC control chip and the second IC control chip. The utility model discloses a design of multiunit RGB luminescence chip, first IC control chip and second IC chip, under the normal condition, through the control of first IC control chip and second IC chip, only light a set of RGB luminescence chip, when wherein one kind of luminescence chip appears damaging or the bonding wire drops, through first IC control chip and second IC chip cooperation control, light the RGB luminescence chip of replacement, realize full-color purpose.

Description

Full-color LED lamp bead

Technical Field

The utility model relates to a LED field especially relates to a full-color LED lamp pearl.

Background

The English language of the LED is (light emitting diode), and the LED lamp bead is the English abbreviation of the LED which is called LED for short, which is a popular name.

The working principle is as follows: the terminal voltage of the PN junction forms a certain potential barrier, when a forward bias voltage is applied, the potential barrier is lowered, and most carriers in the P region and the N region diffuse to each other. Since electron mobility is much greater than hole mobility, a large number of electrons will diffuse into the P region, constituting an injection of minority carriers into the P region. These electrons recombine with holes in the valence band and the energy obtained upon recombination is released as light energy. This is the principle of PN junction luminescence.

Full-color LED lamp pearl on the present market generally adopts the mode that RGB three-colour lamp pearl mixes, and at the in-process of using, as long as damage appears in one of them lamp pearl, then will influence its full-color effect.

Therefore, there is a need in the market for a full-color LED lamp bead that can solve one or more of the above problems.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems that exist among the prior art, the utility model provides a full-color LED lamp pearl.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: the utility model provides a full-color LED lamp pearl, full-color LED lamp pearl includes:

the support is provided with an installation groove on the upper end face, and an installation part is arranged in the installation groove;

the anode/cathode pin is arranged on the bracket, one end of the anode/cathode pin is arranged in the mounting groove, and the other end of the anode/cathode pin extends out of the bottom surface of the bracket and is arranged on two opposite side edges of the bottom surface of the bracket;

the light emitting chip is arranged on the mounting part and comprises at least two red light chips, two blue light chips and two green light chips;

the first IC control chip is arranged at the position, in which the anode pin is positioned, of the mounting groove, the input end of the first IC control chip is connected with the anode pin, and the output end of the first IC control chip is connected with the input end of the light-emitting chip;

the second IC control chip is arranged at the position, in which the negative pin is positioned, in the mounting groove, the output end of the second IC control chip is connected with the negative pin, and the input end of the second IC control chip is connected with the output end of the light-emitting chip; and

fluorescent glue, fluorescent glue sets up in the mounting groove, with luminous chip, first IC control chip and the encapsulation of second IC control chip.

In some embodiments, the stent comprises:

the lower bottom surface of the ceramic heat dissipation base is provided with at least one solder paste clearance groove; and

the insulating mounting seat is arranged on the ceramic heat dissipation base and integrally formed with the ceramic heat dissipation base, and the mounting groove is formed in the upper end face of the insulating mounting seat.

In some embodiments, the solder paste clearance groove is arranged in a direction perpendicular to a line connecting the positive electrode pin and the negative electrode pin on the bottom surface of the bracket.

In some embodiments, the light emitting chip is fixed on the mounting part by a heat conductive silicone grease.

In some embodiments, the height of the fluorescent glue is flush with the upper end face of the mounting groove.

The utility model has the advantages that: the utility model discloses a design of multiunit RGB luminescence chip, first IC control chip and second IC chip, under the normal condition, through the control of first IC control chip and second IC chip, only light a set of RGB luminescence chip, when wherein one kind of luminescence chip appears damaging or the bonding wire drops, through first IC control chip and second IC chip cooperation control, light the RGB luminescence chip of replacement, realize full-color purpose.

Drawings

Fig. 1 is a top view of a full-color LED lamp bead according to a preferred embodiment of the present invention;

fig. 2 is the utility model discloses preferred embodiment a full-color LED lamp pearl's cross-sectional view.

Detailed Description

In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 and fig. 2, the utility model discloses a full-color LED lamp pearl, full-color LED lamp pearl includes:

the support comprises a support 10, wherein the upper end surface of the support 10 is provided with an installation groove 11, and an installation part 12 is arranged in the installation groove 11;

the positive/negative electrode pin 20 is arranged on the support 10, one end of the positive/negative electrode pin 20 is arranged in the mounting groove 11, and the other end of the positive/negative electrode pin 20 extends out of the bottom surface of the support 10 and is arranged on two opposite side edges of the bottom surface of the support 10;

the light emitting chip 30, the light emitting chip 30 is arranged on the mounting portion 12, the light emitting chip 30 includes at least two red light chips, two blue light chips and two green light chips;

the first IC control chip 40 is arranged at a position where the positive pin is located in the mounting groove 11, the input end of the first IC control chip 40 is connected with the positive pin, and the output end of the first IC control chip 40 is connected with the input end of the light-emitting chip 30;

the second IC control chip 50 is arranged at a position where the negative pin is positioned in the mounting groove 11, the output end of the second IC control chip 50 is connected with the negative pin, and the input end of the second IC control chip 50 is connected with the output end of the light-emitting chip 30; and

and the fluorescent glue 60 is arranged in the mounting groove 11, and encapsulates the light emitting chip 30, the first IC control chip 40 and the second IC control chip 50.

Specifically, the present embodiment takes two red chips, two blue chips, and two green chips as an example for detailed description.

When the lighting circuit works, current firstly passes through the first IC control chip 40, then the current is branched into the two red light chips, the two blue light chips and the two green light chips through the first IC control chip 40 to form six branch circuits, the currents of the six branch circuits are finally collected to the second IC control chip 50, the second IC control chip 50 controls three branch circuits to be communicated with the negative electrode pin to form a loop, and therefore the three light-emitting chips 30 are lighted, the other three branch circuits are not conducted, namely the three standby light-emitting chips 30 are not lighted.

It should be noted that the three light-emitting chips 30 are a red chip, a blue chip and a green chip, respectively.

When one of the three working light-emitting chips 30 is damaged to cause the loop to be non-circulating, the second IC control chip 50 can control the loop corresponding to the standby light-emitting chip 30 to be conducted, so as to achieve the purpose of full color again.

This scheme adopts reserve luminescent chip 30 and the design of second IC control chip 50, compares with the full-color LED on the present market, has improved full-color LED's life greatly.

In some embodiments, the stent 10 comprises:

the lower bottom surface of the ceramic heat dissipation base 13 is provided with at least one solder paste clearance groove 14; and

insulating mount pad 15, insulating mount pad 15 sets up on the pottery heat dissipation base 13, with pottery heat dissipation base 13 integrated into one piece, mounting groove 11 sets up on the insulating mount pad 15 up end.

Specifically, in this embodiment, design into two parts with support 10, partly is ceramic heat dissipation base 13, another part is insulating mount pad 15, ceramic heat dissipation base 13 adopts high heat conduction pottery, solder paste in it keeps away empty groove 14 except can avoiding the solder paste contact of anodal/negative pole department, cause the problem of short circuit, and simultaneously, can also increase the area of contact of ceramic heat dissipation base 13 and air, accelerate the heat dissipation, and simultaneously, after it is fixed with the installation of PCB board, solder paste keeps away empty groove 14 and forms many convection current passageways just in time with between the PCB board, can accelerate the heat dissipation of whole lamp pearl again through the convection current.

In some embodiments, the solder paste clearance groove 14 is disposed in a direction perpendicular to a line connecting the positive/negative leads 20 on the bottom surface of the frame 10.

In some embodiments, the light emitting chip 30 is fixed on the mounting portion 12 by a heat conductive silicone grease 70.

In some embodiments, the height of the fluorescent glue 60 is flush with the upper end surface of the mounting groove 11.

To sum up, the utility model discloses a multiunit RGB sends out light chip 30, first IC control chip 40 and the design of second IC chip, under the normal condition, through the control of first IC control chip 40 and second IC chip, only lights a set of RGB and sends out light chip 30, when wherein one kind send out light chip 30 and appear damaging or the bonding wire drops, through first IC control chip 40 and the cooperation control of second IC chip, lights the RGB of supplementarily and sends out light chip 30, realizes full-color purpose.

The above-mentioned embodiments only express two embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a full-color LED lamp pearl which characterized in that: full-color LED lamp pearl includes:

2. The full-color LED lamp bead according to claim 1, characterized in that: the bracket includes:

3. The full-color LED lamp bead according to claim 2, characterized in that: the arrangement direction of the solder paste clearance groove is vertical to the connecting line of the anode pin and the cathode pin on the bottom surface of the bracket.

4. The full-color LED lamp bead according to claim 1, wherein the light emitting chip is fixed on the mounting portion through heat-conducting silicone grease.

5. The full-color LED lamp bead according to claim 1, wherein the fluorescent glue is flush with the upper end surface of the mounting groove in height.