CN210112011U

CN210112011U - Improved ROSA for passive optical network

Info

Publication number: CN210112011U
Application number: CN201921070901.2U
Authority: CN
Inventors: 彭智华; 郑广平; 龙明华
Original assignee: Guangdong Unionman Technology Co Ltd
Current assignee: Guangdong Unionman Technology Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-02-21
Anticipated expiration: 2029-07-09

Abstract

The utility model relates to the technical field of ROSA, in particular to an improved ROSA for a passive optical network, which comprises an optical receiver and a pin leading-out structure connected with the optical receiver; the pin leading-out structure comprises a plurality of straight-inserting pins electrically connected with the optical receiver and a fastening body physically connected with the optical receiver, and the straight-inserting pins are led out from one surface of the fastening body. Compared with the traditional ROSA adopting a specially-arranged FPCB, the method has the advantages that the FPCB is removed, the raw material cost is saved, the process of manually welding the FPCB on an application board is saved, the labor cost is saved, and the product yield is improved; the 8 signal pins are integrated into 5 direct-insertion pins, useless signal pins are removed, the direct pins can be welded by a machine, the welding mode is simpler, and the welding is more stable; 5 formula pin of cuting straightly of integration also can play good fixed effect, and the design of cooperation fastening foot, the firm nature after the welding is promoted greatly.

Description

Improved ROSA for passive optical network

Technical Field

The utility model relates to a ROSA technical field especially relates to an improved generation ROSA for passive optical network.

Background

A conventional ROSA structure (ROSA — optical receiving subassembly, which mainly converts an optical signal into an electrical signal) as shown in fig. 1 includes a body (optical receiver), a fixed pin, and an FPCB, wherein the body receives the optical signal from an optical fiber and transmits the optical signal via the FPCB. As shown in fig. 2, the FPCB includes 1 to 8 pins, which are Ground (GND), power supply (Vcc), Ground (GND), Data + (Data +), Data- (Data-), Ground (GND), source current (MON), and Ground (GND), respectively. Referring to fig. 3, in practical applications, the ROSA is attached to the application plate by welding.

The conventional 10G ROSA has the following drawbacks:

1. the body and the application plate are welded and fixed by the two fixing pins on the body, so that the body is unstable and easy to loosen, and the product quality cannot be guaranteed in application;

2. the FPCB and the application board are not convenient to weld, the production efficiency is not high, the FPCB is easy to damage, and the production cost is high;

3. the FPCB and the body need to be welded, the production efficiency is not high, the FPCB is easy to damage, and the production cost is high;

4. the FPCB needs to be designed separately, which results in increased cost of ROSA, no guarantee of quality and consistency, and indirectly increased cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides an improved generation ROSA for passive optical network, the technical problem of solution is: the ROSA of the existing passive optical network adopts a specially-arranged FPCB, so that the cost is higher; and still need carry out welded fastening between FPCB and the body, and the application board, welded quality can't obtain guaranteeing, adopts two fastening feet to pass through the mode of welded fastening on the application board in addition, and is unstable, easily not hard up.

In order to solve the above technical problem, the utility model provides an improved ROSA for passive optical network, which comprises an optical receiver and a pin leading-out structure connected with the optical receiver;

the pin leading-out structure comprises a plurality of straight-inserting pins electrically connected with the optical receiver and a fastening body physically connected with the optical receiver, and the straight-inserting pins are led out from one surface of the fastening body.

Specifically, the fastening body comprises a retention box body and a fastening pin, and the straight-inserting type pin and the fastening pin are led out from the bottom surface of the retention box body.

Preferably, the number of the direct-insert pins is five, and the pins are respectively a source current pin, a power supply pin, a data positive electrode pin, a data negative electrode pin and a grounding pin.

Preferably, the source current pin, the power supply pin, the data positive electrode pin, the data negative electrode pin and the ground pin are arranged in a regular pentagon shape.

Preferably, the light receiver is horizontally connected with the retention box.

Specifically, the fastening pins are provided with at least two pins and are higher than the direct-insertion pins.

Preferably, the two fastening feet are symmetrically distributed on the bottom surface and are adjacent to one side of the light receiver.

Preferably, the fastening pin and the straight pin are cylindrical structures with protruding ends, and the diameter of the fastening pin is larger than that of the straight pin.

Preferably, the two symmetrical sides of the retention box body are provided with plugging and unplugging assisting structures.

Preferably, the plug-pull assisting structure comprises an elastic sheet and a buckle which is opposite to the central opening of the elastic sheet.

The utility model provides a pair of an improved generation ROSA for passive optical network has adopted the ROSA of the special FPCB of establishing for the tradition, mainly has following advantage:

1. the FPCB is removed, the raw material cost is saved, the process of manually welding the FPCB on the application board is saved, the labor cost is saved, the product yield is improved, and the product consistency is ensured;

2. the 8 signal pins are integrated into 5 direct-insertion pins, useless signal pins are removed, the direct pins can be welded by a machine, the welding mode is simpler, and the welding is more stable;

3. 5 formula pin of cuting straightly of integration also can play good fixed effect, and the design of cooperation fastening foot, the firm nature after the welding is promoted greatly.

Drawings

Fig. 1 is a perspective view of a ROSA employing a FPCB according to the related art;

FIG. 2 is a pin definition diagram of the FPCB of FIG. 1 provided by the present invention;

FIG. 3 is a schematic structural view of the application plate welded with FIG. 1 according to the present invention;

fig. 4 is a perspective view of an improved ROSA for a passive optical network according to an embodiment of the present invention;

fig. 5 is a perspective view of fig. 3 after being turned over according to an embodiment of the present invention;

fig. 6 is a pin definition diagram of the 5 in-line pins in fig. 4 according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram (back side) for welding fig. 3 on an application board according to an embodiment of the present invention.

The optical receiver comprises an optical receiver 1, a pin leading-out structure 2, a retention box body 21, a fastening pin 22, a direct insertion type pin 23, an elastic sheet 24 and a buckle 25.

Detailed Description

The following embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are given for illustrative purposes only and are not to be construed as limiting the invention, including the drawings, which are only used for reference and illustration, and do not constitute a limitation to the scope of the invention, since many changes may be made thereto without departing from the spirit and scope of the invention.

The embodiment of the utility model provides an improved generation ROSA for passive optical network, as shown in fig. 4, 5, including optical receiver 1, still including connecting the pin lead-out structure 2 of optical receiver 1;

the pin leading-out structure 2 comprises a plurality of straight-inserting pins 23 electrically connected with the optical receiver 1 and a fastening body physically connected with the optical receiver 1, wherein the straight-inserting pins 23 are led out from one surface of the fastening body.

In the present embodiment, referring to fig. 4 and 5 again, the fastening body includes a retention box 21 and a fastening pin 22, the in-line pin 23 and the fastening pin 22 are led out from the bottom surface of the retention box 21, and the light receiver 1 is horizontally connected to the retention box 21. The number of the fastening pins 22 is at least two, and the fastening pins are higher than the in-line pins 23.

Referring to fig. 6, the in-line pins 23 are provided with five pins, which are a source current pin (Isource), a power supply pin (Vcc), a Data positive electrode pin (Data +), a Data negative electrode pin (Data-) and a ground pin (GND), respectively, wherein the pins closest to the fastening pin are the source current pin (Isource) and the power supply pin (Vcc).

In this embodiment, the source current pin, the power supply pin, the data positive electrode pin, the data negative electrode pin, and the ground pin are arranged in a regular pentagon shape, and the application board also needs to be provided with holes at corresponding positions. In other embodiments, the regular pentagonal structures can be arranged in other patterns, but the regular pentagonal structures are most stable and easy to implement.

Referring again to fig. 5, in the present embodiment, two fastening legs 22 are provided, symmetrically distributed on the bottom surface on the side adjacent to the light receiver 1.

In the present embodiment, the fastening pin 22 and the in-line pin 23 are preferably cylindrical structures with protruding ends, and the diameter of the fastening pin 22 is larger than that of the in-line pin 23.

Referring to fig. 5 again, two symmetrical sides of the retention box 21 are provided with a plugging assisting structure. More specifically, the plug assisting structure comprises an elastic sheet 24 and a buckle 25 which is opposite to the central opening of the elastic sheet 24, so that the plug is convenient to plug.

Referring to fig. 7, if the present application is welded on an application board, the fastening pin 22 and the in-line pin 23 of the present application need to be inserted into the reserved hole, and finally, the welding is automatically completed by a welding machine.

It should be further noted that the embodiment of the present invention is mainly used for accessing a 10G network bandwidth.

The embodiment of the utility model provides an improved generation ROSA for passive optical network has adopted the ROSA of the special FPCB of establishing for the tradition, mainly has following advantage:

2. the 8 signal pins are integrated into 5 direct-insertion pins 23, useless signal pins are removed, the direct pins can be welded by a machine, the welding mode is simpler, and the welding is more stable;

3. the integrated 5 direct-insert pins 23 can also play a good fixing effect, and the firmness after welding is greatly improved by matching with the design of the fastening pins 22.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. An improved ROSA for passive optical network comprises an optical receiver and is characterized by also comprising a pin-out structure connected with the optical receiver;

2. The improved ROSA of claim 1, wherein: the fastening body comprises a fixing box body and fastening pins, and the straight-inserting pins and the fastening pins are led out from the bottom surface of the fixing box body.

3. An improved ROSA for a passive optical network as defined in claim 2, wherein: five direct-insert pins are arranged and are respectively a source current pin, a power supply pin, a data anode pin, a data cathode pin and a grounding pin.

4. An improved ROSA for a passive optical network as defined in claim 3, wherein: the source current pin, the power supply pin, the data anode pin, the data cathode pin and the grounding pin are arranged in a regular pentagon shape.

5. An improved ROSA for a passive optical network as defined in claim 2, wherein: the light receiver is horizontally connected with the retention box body.

6. An improved ROSA for a passive optical network as defined in claim 2, wherein: the fastening pins are provided with at least two pins and are higher than the direct insertion pins.

7. The improved ROSA of claim 6, wherein: the two fastening feet are symmetrically distributed on one side of the bottom surface, which is adjacent to the light receiver.

8. The improved ROSA of claim 7, wherein: the fastening pin and the straight-inserting pin are cylindrical structures with protruding ends, and the diameter of the fastening pin is larger than that of the straight-inserting pin.

9. An improved ROSA for a passive optical network as claimed in any of claims 2 to 8, wherein: the two symmetrical side surfaces of the retention box body are provided with plugging and unplugging power-assisted structures.

10. The improved ROSA of claim 9, wherein: the plug assisting structure comprises an elastic sheet and a buckle which is just opposite to the central opening of the elastic sheet.