CN113719778A

CN113719778A - Soft lamp area of BT board lamp pearl

Info

Publication number: CN113719778A
Application number: CN202111128864.8A
Authority: CN
Inventors: 麦家通; 戴轲
Original assignee: Ansheng Technology Guangdong Co ltd
Current assignee: Ansheng Technology Guangdong Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-11-30

Abstract

The invention discloses a soft lamp strip of BT (BT) board lamp beads, which comprises a flexible circuit board and is characterized in that: the LED lamp bead comprises a BT substrate, a red light chip, a blue light chip and a green light chip, wherein one side of the BT substrate is provided with a plurality of pins, the other side of the substrate unit is provided with a plurality of substrate pad areas, the substrate pad areas are provided with through holes, conductive copper columns are arranged in the through holes, the substrate pad areas are electrically communicated with the corresponding pins through the conductive copper columns, the red light chip, the blue light chip and the green light chip are welded with the corresponding substrate pad areas, the pins are welded with the corresponding circuit board pad areas, and the flexible circuit board and the LED lamp bead are packaged through white glue.

Description

Soft lamp area of BT board lamp pearl

Technical Field

The invention relates to a soft lamp strip, in particular to a soft lamp strip with BT (BT) board lamp beads with strong bending resistance and torsion resistance.

Background

The LED flexible light strip is the most common one of the LED light strips, and with the continuous development of the LED industry, the LED light strip gradually appears in the decoration industry, even gradually becomes the mainstream trend. The common LED soft lamp strip adopts a patch monochromatic LED chip (comprising R, G, B three colors) as a luminous element, so that the LED soft lamp strip has the advantages of the LED luminous element, can be used for decoration and can also be used for illumination.

However, the area where the single LED chip is directly welded with the flexible light strip is relatively small, so that the flexible light strip is easily subjected to larger pressure or bending and is easy to be desoldered, and the flexible light strip is not strong in bending resistance and torsion resistance and not high in integration level.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the soft lamp strip of the BT plate lamp bead with strong bending resistance and torsion resistance.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a soft lamp area of BT board lamp pearl, includes the flexible line way board, its characterized in that: the LED lamp bead comprises a BT substrate, a red light chip, a blue light chip and a green light chip, wherein one side of the BT substrate is provided with a plurality of pins, the other side of the substrate unit is provided with a plurality of substrate pad areas, the substrate pad areas are provided with through holes, conductive copper columns are arranged in the through holes, the substrate pad areas are electrically communicated with the corresponding pins through the conductive copper columns, the red light chip, the blue light chip and the green light chip are welded with the corresponding substrate pad areas, the pins are welded with the corresponding circuit board pad areas, and the flexible circuit board and the LED lamp bead are packaged through white glue.

The pad area is plated with a silver layer, and the silver layer is electrically communicated with the pins through conductive copper columns.

The BT substrate is provided with four substrate pad areas which are divided into two rows and oppositely arranged, wherein one substrate pad area is used as a common negative electrode area, the other three substrate pad areas are used as positive electrode areas, and the negative electrodes of the red light chip, the blue light chip and the green light chip are connected with the common negative electrode area; and the anodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding anode regions.

Six substrate pad areas are arranged on the BT substrate and are divided into two rows which are oppositely arranged, wherein three substrate pad areas serve as negative electrode areas, the other three substrate pad areas serve as positive electrode areas, and the negative electrodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding negative electrode areas; and the anodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding anode regions.

The invention has the beneficial effects that: according to the invention, the LED lamp beads comprising the red light chip, the blue light chip and the green light chip are welded on the flexible circuit board, so that the welding point and the area of the flexible circuit board are increased, and the BT substrate has strong bending resistance and torsion resistance, so that the problem that the chip is easy to be desoldered when the flexible lamp strip is twisted or bent is avoided, and the integration level is higher.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a flexible wiring board;

fig. 2 is a schematic diagram of a pad structure on a BT substrate;

FIG. 3 is a schematic diagram of another pad structure on a BT substrate;

FIG. 4 is a schematic sectional structure view of an LED lamp bead.

Detailed Description

Advantages and features of the present disclosure and methods of practicing the same will be clarified by the following embodiments described with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the present disclosure is to be limited only by the scope of the claims.

The shapes, sizes, proportions, angles and numbers disclosed in the accompanying drawings for describing embodiments of the present disclosure are by way of example only, and are not intended to be limited to the details shown. Like reference numerals refer to like elements throughout the specification. In the following description, when a detailed description of a related known function or configuration is determined to unnecessarily obscure the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having", and "including" described in this specification, other components may be added unless "only" is used. Unless indicated to the contrary, singular terms may include the plural.

In explaining the elements, although not explicitly described, the elements are understood to include error ranges.

In describing the positional relationship, for example, when the positional relationship is described as "on … …", "above … …", "below … …", and "adjacent to … …", one or more portions may be arranged between two other portions unless "immediately" or "directly" is used.

In describing the temporal relationship, for example, when the temporal order is described as "after … …", "subsequently", "next", and "before … …", the case of discontinuity may be included unless "just" or "directly" is used.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

As will be well understood by those skilled in the art, the features of the different embodiments of the present disclosure may be partially or fully coupled or combined with each other and may cooperate with each other and be technically driven in various ways. Embodiments of the present disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

Referring to fig. 1 and 4, the invention discloses a flexible lamp strip of a BT board lamp bead, comprising a strip-shaped flexible circuit board 1, wherein the flexible circuit board 1 is provided with a plurality of circuit board pad areas 2, and further comprising an LED lamp bead welded on the flexible circuit board 1, the LED lamp bead comprises a BT substrate 3, a red light chip, a blue light chip, and a green light chip, one surface of the BT substrate 3 is provided with a plurality of pins 4, the other surface of the substrate unit is provided with a plurality of substrate pad areas 5, the substrate pad areas 5 are provided with through holes, conductive copper pillars 6 are arranged in the through holes, the substrate pad areas 5 are electrically communicated with the corresponding pins 4 through the conductive copper pillars 6, the red light chip, the blue light chip 7, and the green light chip 8 are welded with the corresponding substrate pad areas 5, the whole is encapsulated by resin, the pins 4 are welded with the corresponding circuit board pad areas 2, the flexible circuit board 1 and the LED lamp bead are encapsulated by white glue, of course, the above-mentioned red light chip includes a light emitting chip and a fluorescent paste encapsulating the light emitting chip, so that the red light emitted from the red light chip is red light formed by exciting the fluorescent powder in the fluorescent paste by light of other colors emitted from the light emitting chip, and the blue light chip 7 is a blue light emitting chip directly employed, and is encapsulated by a transparent resin, and the green light chip 8 is a green light emitting chip directly employed, and is encapsulated by a transparent resin. In the present application, the BT board is a generic term for processing the BT board 3 into the PCB, and the BT board 3 on the market is mainly polymerized by using BT resin developed by mitsubishi gas corporation of japan and mainly polymerized by b (bismalimide) and T (Triazine).

The substrate welding pad area 5 is plated with a silver layer (not shown in the figure), the silver layer is electrically communicated with the pins 4 through the conductive copper columns 6, the silver layer is electrically communicated with the circuit layer through the conductive copper columns 6, the silver layer is better in conductivity and improves the diffusivity of solder paste, so that the chip is welded on the circuit board more smoothly, the welding quality is improved, the smoothness consistency of the light-emitting angle is ensured, the problem that the solder paste gathers on a copper layer of the welding pad area to form a group and is difficult to diffuse in the past is avoided, the chip is welded on the circuit board unevenly, the welding quality and the light-emitting angle are influenced is solved, better reflection brightness can be obtained through the silver layer, and the lighting effect is improved.

As shown in fig. 2, in the present application, as a pad structure on the BT substrate 3, four substrate pad regions 5 are arranged on the BT substrate 3, the four substrate pad regions 5 are divided into two rows and oppositely arranged, one of the substrate pad regions 5 serves as a common negative electrode region, the other three substrate pad regions 5 serve as positive electrode regions, four pins 4 correspondingly arranged on the BT substrate 3 pass through the four substrate pad regions, and the negative electrodes of the red light chip, the blue light chip 7 and the green light chip 8 are all connected with the common negative electrode region connecting conductive copper pillar 6 and the corresponding substrate pad region 5; the anodes of the red light chip, the blue light chip 7 and the green light chip 8 are connected with the corresponding anode regions, and the corresponding flexible circuit board 1 is provided with a plurality of corresponding circuit board pad regions 2, so that the pins 4 are welded with the corresponding circuit board pad regions 2.

As shown in fig. 3, as another pad structure on the BT substrate 3, six substrate pad regions 5 are arranged on the BT substrate 3, the six substrate pad regions 5 are divided into two rows and oppositely arranged, three of the substrate pad regions 5 serve as a negative electrode region, the other three substrate pad regions 5 serve as a positive electrode region, six pins 4 correspondingly arranged on the BT substrate 3 pass through the six substrate pad regions, and the negative electrodes of the red light chip, the blue light chip 7 and the green light chip 8 are connected to the corresponding negative electrode regions; the anodes of the red light chip, the blue light chip 7 and the green light chip 8 are connected with the corresponding anode regions, and the corresponding flexible circuit board 1 is provided with a plurality of corresponding circuit board pad regions 2, so that the pins 4 are welded with the corresponding circuit board pad regions 2.

The BT board lamp bead soft lamp strip provided by the embodiment of the invention is described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a soft lamp area of BT board lamp pearl, includes the flexible line way board, its characterized in that: the LED lamp bead comprises a BT substrate, a red light chip, a blue light chip and a green light chip, wherein one side of the BT substrate is provided with a plurality of pins, the other side of the substrate unit is provided with a plurality of substrate pad areas, the substrate pad areas are provided with through holes, conductive copper columns are arranged in the through holes, the substrate pad areas are electrically communicated with the corresponding pins through the conductive copper columns, the red light chip, the blue light chip and the green light chip are welded with the corresponding substrate pad areas, the pins are welded with the corresponding circuit board pad areas, and the flexible circuit board and the LED lamp bead are packaged through white glue.

2. The flexible lamp strip of the BT board lamp bead of claim 1, wherein the land area is coated with a silver layer, and the silver layer is electrically connected with the pins through conductive copper posts.

3. The soft lamp strip of the BT plate lamp bead of claim 1, wherein four substrate pad areas are arranged on the BT substrate and are divided into two rows, one of the four substrate pad areas is used as a common negative electrode area, the other three substrate pad areas are used as positive electrode areas, and the negative electrodes of the red light chip, the blue light chip and the green light chip are all connected with the common negative electrode area; and the anodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding anode regions.

4. The soft lamp strip of the BT plate lamp bead of claim 1, wherein six substrate pad areas are arranged on the BT substrate and are divided into two rows, wherein the six substrate pad areas are oppositely arranged, three of the substrate pad areas serve as negative electrode areas, the other three substrate pad areas serve as positive electrode areas, and the negative electrodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding negative electrode areas; and the anodes of the red light chip, the blue light chip and the green light chip are connected with the corresponding anode regions.