CN218996715U

CN218996715U - Multicolor ceramic RGB lamp bead

Info

Publication number: CN218996715U
Application number: CN202223307350.1U
Authority: CN
Inventors: 宋艳琼
Original assignee: Shenzhen Xinyiguang Optoelectronics Co ltd
Current assignee: Shenzhen Haisen Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-09
Anticipated expiration: 2032-12-09

Abstract

The utility model belongs to the technical field of patch lamp beads, and relates to a multicolor ceramic RGB lamp bead, which comprises a ceramic substrate, a conductive terminal and a light-emitting chip; every two conductive terminals are in a group, each group of conductive terminals corresponds to the positive electrode and the negative electrode respectively, and a plurality of groups of conductive terminals are fixed on the front surface of the ceramic substrate; the light-emitting chips are fixed on the front surface of the ceramic substrate, the light-emitting chips are in one-to-one correspondence with the multiple groups of conductive terminals, and the positive and negative electrodes of the light-emitting chips are connected with each group of conductive terminals through welding or lead wires; the light emitting chips are different in light emitting color, a colloid seal is arranged above the light emitting chips, and the colloid covers the light emitting chips and the leads.

Description

Multicolor ceramic RGB lamp bead

Technical Field

The utility model belongs to the technical field of patch lamp beads, and relates to a multicolor ceramic RGB lamp bead.

Background

The RGB patch lamp beads can be used as RGB lamps and color temperature adjustment due to the fact that the RGB patch lamp beads are provided with light sources with different colors, often play a role of atmosphere lamps, and can be widely applied to places such as restaurants, bars and the like.

In order to pursue better lighting effect and color combination, the existing RGB lamp beads adopt a mode of adding a light emitting chip and increasing power.

However, the conventional RGB lamp bead substrate is generally an aluminum substrate, and although it is relatively inexpensive, it is not heat-dissipating well, and is not insulated, which easily causes problems of insufficient heat dissipation. On the basis of an aluminum substrate, the number and power of the light emitting chips of the RGB lamp beads are limited.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a multicolor ceramic RGB lamp bead, which adopts a ceramic substrate to improve the thermal stability and the service life of the lamp bead under high power.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a multicolor ceramic RGB lamp bead comprises a ceramic substrate, a conductive terminal and a light-emitting chip;

every two conductive terminals are in a group, each group of conductive terminals corresponds to the positive electrode and the negative electrode respectively, and a plurality of groups of conductive terminals are fixed on the front surface of the ceramic substrate;

the light-emitting chips are fixed on the front surface of the ceramic substrate, the light-emitting chips are in one-to-one correspondence with the multiple groups of conductive terminals, and the positive and negative electrodes of the light-emitting chips are connected with each group of conductive terminals through welding or lead wires;

the light emitting chips are different in light emitting color, a colloid seal is arranged above the light emitting chips, and the colloid covers the light emitting chips and the leads.

Further, the number of the light emitting chips is 5, and the light emitting chips are respectively white, green, blue, red and orange.

Further, the number of the light emitting chips is 6, and the light emitting chips are respectively white, green, blue, red, yellow and orange.

Further, the conductive terminal penetrates through the ceramic substrate to form a flat base pin on the back surface, the base pin is inlaid in the ceramic substrate, and the base pin and the back surface of the ceramic substrate are located on the same plane.

Further, the pins of the conductive terminals connected with the positive electrode are positioned on one side of the ceramic substrate, and the pins of the conductive terminals connected with the negative electrode are positioned on the other side of the ceramic substrate.

Further, the lead is made of gold, and the lamp bead is connected with the conductive terminal by adopting double leads.

Further, a heat dissipation plate is arranged on the back surface of the ceramic substrate.

Further, silver plating layers are arranged on the surfaces of the radiating plate and the conductive terminal.

Further, a notch is formed in the back face of the heat dissipation plate and used for identifying the positive and negative directions of the lamp beads.

Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

1. the number of the lamp beads is more, and the luminous effect is more abundant;

2. the ceramic substrate is adopted, so that the heat dissipation is good, the insulativity is high, the luminous efficiency is high, the service life is long, and the environment is protected;

3. the welding of the double-gold lead wire is more stable and reliable in a high-power working environment;

4. silver-plated conductive terminals and heat dissipation plates have good heat conductivity and are not easy to oxidize.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The present utility model will be described in detail below with reference to the attached drawings, so that the above advantages of the present utility model will be more apparent.

FIG. 1 is a schematic diagram of a five-color substrate of a multicolor ceramic RGB lamp bead of the present utility model;

FIG. 2 is a five-color schematic diagram of a multi-color ceramic RGB lamp bead according to the present utility model;

FIG. 3 is a schematic view of the back of a five-color substrate of a multicolor ceramic RGB lamp bead of the present utility model;

FIG. 4 is a schematic diagram of a six-color substrate of a multi-color ceramic RGB lamp bead according to the present utility model;

FIG. 5 is a six-color schematic of a multi-color ceramic RGB lamp bead according to the present utility model;

FIG. 6 is a schematic view of the back of a six-color substrate of a multicolor ceramic RGB lamp bead of the present utility model;

FIG. 7 is a schematic diagram of the installation of a multicolor ceramic RGB lamp bead according to the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships as described based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 3, a multicolor ceramic RGB lamp bead includes a ceramic substrate 100, a conductive terminal 200, and a light emitting chip 300;

each two conductive terminals 200 are a group, each group of conductive terminals 200 corresponds to the positive and negative electrodes, and a plurality of groups of conductive terminals 200 are fixed on the front surface of the ceramic substrate 100;

the light emitting chips 300 are fixed on the front surface of the ceramic substrate 100, the light emitting chips 300 are in one-to-one correspondence with the plurality of groups of conductive terminals 200, and the positive and negative electrodes of the light emitting chips 300 are connected with each group of conductive terminals 200 through welding or lead wires 400;

wherein the light emitting colors of the light emitting chips 300 are different from each other, a glue 600 is provided above the light emitting chips 300 to seal, and the glue 600 covers the light emitting chips 300 and the leads 400. Compared with the conventional aluminum substrate, the ceramic substrate 100 has the following characteristics:

1. the reflectivity is high, so that the light efficiency is improved;

2. the ceramic has the characteristics of high reliability, long service life and the like;

3. the ceramic has small coefficient of thermal expansion and cold contraction, and even under a high-temperature environment, the surface of the ceramic is flat, so that the ceramic is beneficial to heat dissipation;

4. the ceramic has higher heat conductivity coefficient, so that the maintenance rate of the heat flux of the LED can be ensured;

5. the ceramic is an insulator that facilitates the LED lighting product to pass various high voltage tests.

Thereby meeting the use requirements of the multi-light emitting chip 300 and high power of the RGB lamp beads.

In the embodiment column, the number of the light emitting chips 300 is 5, which are white, green, blue, red and orange, respectively.

Referring to fig. 4-6, in another embodiment, the number of the light emitting chips 300 is 6, which are white, green, blue, red, yellow and orange, respectively.

In this embodiment, the conductive terminals 200 penetrate the ceramic substrate 100 to form flat pins 210 on the back surface, the pins 210 are embedded in the ceramic substrate 100, and the pins 210 and the back surface of the ceramic substrate 100 are located on the same plane. The flatness of the back contributes to the stability of the welding of the patch and the flatness of the lamp bead.

Referring to fig. 7, in the present embodiment, the plurality of groups of pins 210 connected to the positive electrode of the conductive terminals 200 are located on one side of the ceramic substrate 100, and the plurality of groups of pins 210 connected to the negative electrode of the conductive terminals 200 are located on the other side of the ceramic substrate 100. The lamp bead is convenient to use, and the external PCB supplies power to the wiring.

In this embodiment, the material of the lead 400 is gold, and the lamp bead is connected to the conductive terminal 200 by using the double lead 400. Gold has good conductivity, low heat generation and stable working performance, and is not easy to fuse.

In this embodiment, a heat dissipation plate 500 is provided on the back surface of the ceramic substrate 100. The heat dissipation performance of the lamp beads is improved, so that the maintenance rate of the heat flux of the lamp beads is ensured.

In this embodiment, silver plating is provided on the surfaces of the heat spreader 500 and the conductive terminals 200. The silver-plated conductive terminal 200 and the heat dissipation plate 500 have good thermal conductivity and are not easy to oxidize. The high-power design requirement of the lamp bead is met.

In this embodiment, a notch 510 is provided on the back surface of the heat dissipation plate 500, and the notch 510 is used for identifying the positive and negative directions of the lamp beads. The direction of discernment lamp pearl when being convenient for install is simply understandable.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The multicolor ceramic RGB lamp bead is characterized by comprising a ceramic substrate (100), a conductive terminal (200) and a light-emitting chip (300);

every two conductive terminals (200) are in a group, each group of conductive terminals (200) corresponds to the positive electrode and the negative electrode respectively, and a plurality of groups of conductive terminals (200) are fixed on the front surface of the ceramic substrate (100);

the light-emitting chips (300) are fixed on the front surface of the ceramic substrate (100), the light-emitting chips (300) are in one-to-one correspondence with the groups of conductive terminals (200), and the positive and negative electrodes of the light-emitting chips (300) are connected with each group of conductive terminals (200) through welding or lead wires (400);

the light emitting chips (300) are different in light emitting color, a colloid (600) is arranged above the light emitting chips (300) for sealing, and the colloid (600) covers the light emitting chips (300) and the leads (400).

2. The multi-color ceramic RGB lamp bead according to claim 1, wherein the number of the light emitting chips (300) is 5, which are white, green, blue, red and orange, respectively.

3. The multi-color ceramic RGB lamp bead according to claim 1, wherein the number of the light emitting chips (300) is 6, which are white, green, blue, red, yellow and orange, respectively.

4. The multi-color ceramic RGB lamp bead according to claim 1, wherein the conductive terminals (200) penetrate through the ceramic substrate (100) to form flat pins (210) on the back surface, the pins (210) are embedded in the ceramic substrate (100), and the pins (210) and the back surface of the ceramic substrate (100) are located on the same plane.

5. The multi-color ceramic RGB lamp bead according to claim 1, wherein the pins (210) of the plurality of conductive terminals (200) connected to the positive electrode are located at one side of the ceramic substrate (100), and the pins (210) of the plurality of conductive terminals (200) connected to the negative electrode are located at the other side of the ceramic substrate (100).

6. The multi-color ceramic RGB lamp bead according to claim 1, wherein the material of the lead (400) is gold, and the lamp bead is connected with the conductive terminal (200) by using a double lead (400).

7. The multi-color ceramic RGB lamp bead according to claim 1, characterized in that the back side of the ceramic substrate (100) is provided with a heat dissipation plate (500).

8. The multicolor ceramic RGB lamp bead according to claim 7, characterized in that silver plating is provided on the surfaces of the heat dissipation plate (500) and the conductive terminals (200).

9. The multi-color ceramic RGB lamp bead according to claim 7, wherein a notch (510) is provided on the back surface of the heat dissipating plate (500), and the notch (510) is used for identifying the positive and negative directions of the lamp bead.