CN210639310U

CN210639310U - COB passive optical coupling device

Info

Publication number: CN210639310U
Application number: CN201921991220.XU
Authority: CN
Inventors: 吴三梅; 杨欣; 马强
Original assignee: Yichang Yuandu Technology Co ltd
Current assignee: Yichang Yuandu Technology Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-05-29
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a COB passive optical coupling device, which comprises a printed circuit board, wherein the printed circuit board is provided with a positioning point which can be identified by a chip mounter, one side of the positioning point is attached with a lens positioning support, one side of the lens positioning support is attached with an optical chip, one side of the optical chip is attached with an electric chip, the lens positioning support is provided with a lens mounting rack matched with the lens positioning support, and the lens mounting rack is provided with a lens; the utility model discloses can only adopt the high accuracy chip mounter to carry out the subsides dress technology, and need not increase extra optical coupling equipment, its equipment and maintenance are all comparatively convenient.

Description

COB passive optical coupling device

Technical Field

The utility model relates to an optical device technical field specifically indicates a COB passive optical coupling device.

Background

Optical alignment techniques for optical modules or optical engine products on the market mostly use optical coupling by energizing and illuminating optical elements. With the large-scale application of data centers and the upgrading of consumer photon products, the market demand is greatly increased, and in order to meet the demand, various professional manufacturers have already developed efforts to enter the product field. The current mainstream technology of COB product optical coupling alignment is active coupling, namely, after a light-emitting chip is electrified to emit light and a light-receiving chip is electrified to work, a lens is aligned to a light source and a photosensitive surface of the receiving chip through a certain light finding method, so that the purposes of light transmission and light receiving are achieved.

The main problems of the above technology are:

1) the production efficiency is low, particularly when a multi-channel optical path is coupled, the optical path needs to be continuously fitted through an optical finding algorithm, and the method consumes more coupling time.

2) The active coupling mode is complex in structure in the realization of automatic coupling equipment, a power-on mechanism needs to be added to a COB product, signals are read by an upper computer for coupling control, the equipment cost is high, the realization is difficult, and the processing procedure is unsmooth due to various interference factors.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned not enough, provide a COB passive optical coupling device to solve the problem that proposes in the background art.

The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a COB passive optical coupling device, includes printed circuit board, be equipped with the setpoint that can be discerned by the chip mounter on the printed circuit board, setpoint one side subsides are equipped with lens positioning support, and lens positioning support one side subsides are equipped with the optical chip, and optical chip one side subsides are equipped with the electric chip, are equipped with on the lens positioning support rather than the complex lens mounting bracket, are equipped with lens on the lens mounting bracket.

Preferably, the top of the lens positioning support is provided with a positioning hole, the bottom of the lens mounting rack is provided with a positioning column, and the positioning column is matched with the positioning hole.

Preferably, a positioning groove is formed in one side of the lens positioning support, and the optical chip and the electric chip are close to the positioning groove.

Preferably, a wedge-shaped groove is formed in the lens mounting frame, and a lens is arranged in the wedge-shaped groove.

The utility model has the advantages that:

1. through the design, the utility model can only adopt the high-precision chip mounter to carry out the mounting process without adding extra optical coupling equipment;

2. the lens positioning support can be accurately positioned and installed after the positioning point is identified by the high-precision chip mounter, the optical chip and the electric chip can be accurately positioned and installed after the positioning point is identified by the high-precision chip mounter, and the positioning point and the positioning groove are arranged, so that the chip mounter can accurately install a plurality of parts, and the production efficiency is greatly improved;

3. the lens positioning support and the lens mounting rack are directly connected in a butt joint mode through the positioning columns and the positioning holes, and the lens positioning support and the lens mounting rack are convenient to assemble and maintain.

Drawings

FIG. 1 is a schematic diagram of a COB passive optical coupling device;

FIG. 2 is a schematic bottom view of the lens mount of FIG. 1;

in the figure, a printed circuit board 1, a positioning point 2, an optical chip 3, an electric chip 4, a lens positioning support 5, a positioning groove 5.1, a lens mounting frame 6, a lens 6.1, a positioning hole 7 and a positioning column 8.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 to 2, a COB passive optical coupling device includes a printed circuit board 1, be equipped with on the printed circuit board 1 and can be by setpoint 2 of chip mounter discernment, 2 side pastes of setpoint are equipped with

lens positioning support

5, and 5 side pastes of lens positioning support are equipped with

optical chip

3, and 3 side pastes of optical chip are equipped with electric chip 4, are equipped with on the lens positioning support 5 rather than the complex lens mounting bracket 6, are equipped with lens 6.1 on the lens mounting bracket 6.

Preferably, the top of the lens positioning support 5 is provided with a positioning hole 7, the bottom of the lens mounting frame 6 is provided with a positioning column 8, and the positioning column 8 is matched with the positioning hole 7. The present embodiment uses the process of inserting the two positioning posts 8 into the two positioning holes 7 to achieve precise positioning, so as to accurately mount the lens mounting bracket 6 on the lens positioning bracket 5.

Preferably, one side of the lens positioning bracket 5 is provided with a positioning groove 5.1, and the optical chip 3 and the electric chip 4 are close to the positioning groove 5.1.

Preferably, a wedge-shaped groove is formed in the lens mounting frame 6, and a lens 6.1 is arranged in the wedge-shaped groove.

Preferably, the chip mounter in this embodiment performs image recognition and positioning on the positioning point 2 and the positioning groove 5.1 through its own CCD camera, so as to accurately mount the lens positioning bracket, the optical chip, and the electrical chip. The chip mounter may select the three-star LED LENS specific chip mounter SLM 120S.

The working principle of the embodiment is as follows:

1. adopting a positioning point 2 on a printed circuit board 1, aligning a lens positioning support 5 with the positioning point 2 by using a high-precision chip mounter, adhering by using an adhesive process, and baking and fixing;

2. the optical chip 3 to be coupled is accurately pasted and adhered with the positioning groove 5.1 of the lens positioning bracket 5 by using silver adhesive, and is baked and cured at high temperature;

3. the lens mounting frame 6 and the lens positioning support 5 are buckled together through the matching of the positioning column 8 and the positioning hole 7, so that the passive optical alignment is realized.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. A COB passive optical coupling device, includes printed circuit board (1), its characterized in that: be equipped with on printed circuit board (1) and can be by setpoint (2) of chip mounter discernment, setpoint (2) one side subsides are equipped with lens locating support (5), and lens locating support (5) one side subsides are equipped with optical chip (3), and optical chip (3) one side subsides are equipped with electric chip (4), are equipped with on lens locating support (5) rather than complex lens mounting bracket (6), are equipped with lens (6.1) on lens mounting bracket (6).

2. The COB passive optical coupling device of claim 1, characterized in that: the positioning hole (7) is formed in the top of the lens positioning support (5), the positioning column (8) is arranged at the bottom of the lens mounting frame (6), and the positioning column (8) is matched with the positioning hole (7).

3. The COB passive optical coupling device of claim 1, characterized in that: one side of the lens positioning support (5) is provided with a positioning groove (5.1), and the optical chip (3) and the electric chip (4) are close to the positioning groove (5.1).

4. The COB passive optical coupling device of claim 1, characterized in that: a wedge-shaped groove is formed in the lens mounting frame (6), and a lens (6.1) is arranged in the wedge-shaped groove.