CN106199851A - Optical module and fixing device thereof - Google Patents

Abstract

The optical module of the present invention includes: an optical lens block having at least one first opening formed therein; an optical fiber connector optically coupled to the optical lens block, the optical fiber connector having at least one second opening formed therein; a fixing sheet; at least one fixing pin penetrating the first and second openings; and two fixed arms, these two fixed arms are relative to be set up on the stationary blade, wherein optical lens piece with fiber connector sets up between two fixed arms, each the fixed arm includes: the elastic sheet is arranged at the front end of the fixing arm and is pressed on the optical lens block so as to push the optical lens block to the optical fiber connector; and the elastic arc-shaped buckling part is arranged at the tail end of the fixing arm, and the tail end of the buckling part is pressed on the optical fiber connector so as to push the optical fiber connector to the optical lens block.

Description

Optical modules and their fixtures

technical field

The invention relates to an optical module and its fixing device.

Background technique

Referring to FIG. 1 , a known optical engine includes a fiber optic connector 110 , an optical lens block 120 and a printed circuit board 130 . A driving circuit 131 and a plurality of active optical chips 132 are disposed on the printed circuit board 130 . The active optical chip 132 can include a laser light source and a photodiode. The driving circuit 131 is electrically connected to the active optical chip 132 to interact with the active optical chip 132 through an external high-speed electronic system. The optical lens block 120 includes transparent optical material and can optically couple the active optical chip 132 to the optical fiber on the optical fiber connector 110 . The optical fiber connector 110 includes a plurality of optical fibers, which are coupled with the optical lens block 120 to achieve the purpose of optical coupling with the active optical chip 132 through the optical lens block 120 .

However, there is currently no ideal device for fixing the fiber optic connector 110 and the optical lens block 120 together.

Contents of the invention

The object of the present invention is to provide an optical module to overcome the above-mentioned deficiencies and defects of the prior art.

To achieve the above object, the optical module of the present invention includes: an optical lens block, at least one first opening is formed on the optical lens block; an optical fiber connector, the optical fiber connector is optically coupled with the optical lens block, and the optical fiber connector At least one second opening; a fixing piece; at least one fixing pin, the fixing pin penetrates the first opening and the second opening; and two fixing arms, the two fixing arms are oppositely arranged on the On the fixed sheet, the optical lens block and the optical fiber connector are arranged between the two fixed arms, and each of the fixed arms includes: an elastic sheet, the elastic sheet is arranged at the front end of the fixed arm, and the elastic sheet is pressed against the optical on the lens block, so as to push the optical lens block toward the fiber optic connector; and an elastic arc buckle, the buckle is arranged at the end of the fixed arm, and the end of the buckle is pressed against the fiber optic connector up to push the fiber optic connector toward the optical lens block.

The present invention also provides an optical module fixing device, comprising: a fixing plate; a first fixing pin seat, the first fixing pin seat is fixed on the fixing plate; at least one fixing pin, the fixing pin is arranged on the first fixing pin seat and two fixed arms, the two fixed arms are oppositely arranged on the fixed piece, and each of the fixed arms includes: an elastic piece, the elastic piece is arranged at the front end of the fixed arm; and an elastic arc-shaped fastening part, the The fastening part is arranged at the end of the fixed arm.

In order to make the above and other objects, features, and advantages of the present invention more apparent, the following specifically cites the embodiments of the present invention, together with the accompanying drawings, for a detailed description as follows.

Description of drawings

FIG. 1 is an exploded perspective view of a known optical engine;

2 is a perspective view of the fixing frame of the optical module fixing device of the present invention;

3 is a perspective view of a fixing pin of the optical module fixing device of the present invention;

4 is a perspective view of the optical module fixing device of the present invention;

Figure 5a is a perspective view of the optical fiber connector of the optical module of the present invention;

Fig. 5b is another perspective view of the optical fiber connector of the optical module of the present invention;

Figure 6a is a perspective view of an optical fiber lens block of the optical module of the present invention;

Fig. 6b is another perspective view of the fiber lens block of the optical module of the present invention;

Figure 7a is a perspective view of the optical module of the present invention;

Fig. 7b is another perspective view of the optical module of the present invention;

Figure 8 is a cross-sectional view along line 8-8 of Figure 7a.

Explanation of reference signs

211 front section

212 Rear section

230 Buckle

240 shrapnel

251 Fixed pin seat

259 Slotted

300 Fixed pin

400 Fiber Optic Connectors

500 Optical Lens Block

551 Concave

detailed description

Please refer to FIG. 2 , the optical module fixing device of the present invention includes a fixing frame 200 . The fixing frame 200 is made of metal and has two opposite fixing arms 210 . The fixed arm 210 can be roughly divided into a front section 211 and a rear section 212 , wherein the front section 211 is connected to the rear section 212 by a middle section 213 , and the middle section 213 is substantially vertically connected to the front section 211 and the rear section 212 . The front section 211 and the rear section 212 of the fixed arm 210 respectively face the front section 211 and the rear section 212 of the other fixed arm 210 , and the distance between the two front sections 211 is greater than the distance between the two rear sections 212 . The two fixing arms 210 are connected together by a long and narrow fixing piece 220 , wherein the front sections 211 of the two fixing arms 210 are respectively fixed on opposite sides of the fixing piece 220 . The end of the rear section 212 of each fixing arm 210 forms an elastic arc buckling portion 230 . The curved buckling portion 230 has a notch 232 , wherein the notch 232 faces the fixing piece 220 . At the end of the fastening portion 230 , a protrusion 234 is formed, wherein the protrusion 234 faces the fixing piece 220 . An elastic piece 240 is connected to a front end of the front section 211 of each fixed arm 210 . Two opposite sides of the fixing plate 220 are respectively connected to the front sections 211 of the two fixing arms 210, and two fixing pin seats 251 and a fixing pin seat 252 extend vertically respectively on the other two opposite sides, wherein the fixing pin seats 251 are For the fixing pin seat 252 , the fixing pin seat 251 is closer to the elastic piece 240 , and the fixing pin seat 252 is closer to the fastening portion 230 . Vertical slots 259 are formed on the fixing pin seats 251 and 252 , wherein a notch 251 a is formed above the slot 259 of the fixing pin seat 251 , and a notch 252 a is formed above the slot 259 of the fixing pin seat 252 . The notch 251a faces one of the notches 252a, and the notch 251a is smaller than the notch 252a.

Please refer to FIG. 3 , the optical module fixing device of the present invention further includes at least one fixing pin 300 such as two. The fixing pin 300 is substantially cylindrical, and a neck 320 is formed at the junction of the head 310 and the pin body 330 , wherein the outer diameter of the neck 320 is smaller than the outer diameter of the head 310 and the pin body 330 . Please refer to FIG. 4, the two fixing pins 300 of the optical module fixing device of the present invention are respectively placed on a set of fixing pin seats 251, 252 of the fixing frame 200, wherein the notch 251a of the fixing pin seat 251 accommodates the neck 320 of the fixing pin 300 , while the notch 252a of the fixing pin seat 252 accommodates the pin body 330 of the fixing pin 300 , and the width of the notch 251a is smaller than the outer diameter of the head 310 and the pin body 330 .

The optical module of the present invention includes the optical module fixing device shown in FIG. 4 and the optical fiber connector 400 shown in FIGS. 5a and 5b. The optical fiber connector 400 is substantially rectangular, and a row of optical fibers 450 are exposed on the front surface 410 thereof. On both sides of the optical fiber 450 , there are respectively formed a circular opening 430 capable of accommodating two fixing pins 300 respectively. In addition, two circular openings 440 are formed on the rear end surface 420 of the optical fiber connector 400 , and can be respectively inserted into the protrusions 234 on the two fastening portions 230 on the fixing frame 200 . In a specific embodiment, the openings 430 and 440 can be two ends of a through hole.

Please refer to FIG. 6 a and FIG. 6 b , the optical module of the present invention further includes an optical lens block 500 . The optical lens block 500 is substantially rectangular, and two notches 552 are formed at the front end thereof. Recesses 551 are respectively formed on the front end surfaces 510 on both sides of the notch 552 , and the two elastic pieces 240 on the fixing frame 200 are respectively pressed therein. Two openings are formed on the optical lens block 500 , such as through holes 540 , which respectively communicate from the rear end surface 520 of the optical lens block 500 to the notches 552 forwardly. The two through holes 540 allow the two fixing pins 300 to be inserted through the notch 552 and pass through the rear surface 520 respectively. In addition, the optical lens block 500 also includes a transparent optical material 560 that can optically couple the active optical chip 132 on the printed circuit board 130 shown in FIG. 1 with the optical fiber 450 on the optical fiber connector 400 .

Please refer to FIG. 7a, FIG. 7b and FIG. 8, according to the optical module of the present invention, wherein the optical lens block 500 is located between the front sections 211 of the two fixed arms 210, and the optical fiber connector 400 is located between the rear sections 212 of the two fixed arms 210 between. The pin bodies 330 of the two fixing pins 300 fixed on the fixing pin seats 251 and 252 are respectively inserted into the two through holes 540 of the optical lens block 500 , and then inserted into the two openings 430 of the optical fiber connector 400 respectively. The two elastic pieces 240 on the fixing frame 200 are pressed against the front surface 510 on both sides of the notch 552 of the optical lens block 500 , for example respectively pressed into the two recesses 551 to push the optical lens block 500 toward the optical fiber connector 400 . The fixing pin seats 252 are respectively located in the notches 552 and abut against the walls of the notches 552 . The ends of the two curved fastening portions 230 on the fixing frame 200 press against the rear end surface 420 of the fiber optic connector 400 to push the fiber optic connector 400 toward the optical lens block 500 . The protrusions 234 formed on the ends of the fastening portion 230 are respectively inserted into the openings 440 to prevent the fastening portion 230 from sliding on the rear surface 420 of the optical fiber connector 400 .

According to the optical module of the present invention, the fixing pin 300 inserted into the optical lens block 500 and the optical fiber connector 400 can limit the lateral displacement between the optical lens block 500 and the optical fiber connector 400 . The elastic piece 240 and the curved elastic buckle 230 push the optical lens block 500 and the optical fiber connector 400 toward each other, so that the optical lens block 500 and the optical fiber connector 400 can be in close contact, so that a stable optical connection can be formed between the two. coupling.

According to the optical module of the present invention, a stable optical coupling can be formed between the optical lens block 500 and the optical fiber connector 400 by using the fixing frame 200 and the fixing pin 300 .

Although the present invention has been disclosed by the foregoing embodiments, they are not intended to limit the present invention, and any skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the protection scope of the patent application.

Claims (10)

1. an optical module, wherein, this optical module includes:

Optical lens block, this optical lens block is formed at least one first perforate；

The joints of optical fibre, these joints of optical fibre are optical coupled with described optical lens block, and described optical fiber connects At least one second perforate it is formed with on device；

Stator；

At least one steady pin, this steady pin penetrates described first perforate and described second perforate；And

Two fixed arms, this two fixed arm is oppositely arranged on described stator, wherein said optical lens Block and the described joints of optical fibre are arranged between said two fixed arm, each described fixed arm bag Include:

Shell fragment, described shell fragment is arranged on the front end of described fixed arm, and described shell fragment is pressed in described optics On block of lense, to push described optical lens block to the described joints of optical fibre；And

Elastic arc engaging portion, described engaging portion is arranged on the end of described fixed arm, described button The end meeting portion is pressed on the described joints of optical fibre, to push the described joints of optical fibre to described optics Block of lense.

Optical module the most according to claim 1, wherein, this optical module also includes:

First fixes key seat, and this first is fixed key seat and be fixed on described stator, and described steady pin also sets Put and fix on key seat described first.

Optical module the most according to claim 2, wherein, described steady pin includes head, neck Portion and shank, described cervical region is between described head and described shank, and the external diameter of described cervical region is less than The external diameter of described head and described shank, described first fixes and is formed with breach on key seat, and described cervical region is put Putting in described breach, the width of described breach is less than the external diameter of described head with described shank.

Optical module the most according to claim 3, wherein, this optical module also includes:

Second fixes key seat, and this second is fixed key seat and be fixed on described stator, the pin of described steady pin Body is placed on described second and fixes on key seat.

Optical module the most according to claim 1, wherein, described optical lens block is formed Two recesses, two described shell fragments are press respectively against in said two recess.

Optical module the most according to claim 1, wherein, the described joints of optical fibre is also formed Having two the 3rd perforates, the end of each described engaging portion forms projection, and two described projections are inserted respectively In said two the 3rd perforate.

Optical module the most according to claim 2, wherein, described optical lens block is formed Recess, described first steady pin seat is positioned at described recess.

8. an optical module fixing device, wherein, including:

Stator；

First fixes key seat, and this first is fixed key seat and be fixed on described stator；

At least one steady pin, this steady pin is arranged on described first and fixes on key seat；And

Two fixed arms, these two fixed arms are oppositely arranged on described stator, each described fixed arm bag Include:

Shell fragment, described shell fragment is arranged on the front end of described fixed arm；And

Elastic arc engaging portion, described engaging portion is arranged on the end of described fixed arm,

Wherein, two described shell fragments are used for being pressed in optical lens block, with by described optical lens block Push the joints of optical fibre to,

Two described engaging portion are used for being pressed in the described joints of optical fibre, with by the described joints of optical fibre Push described optical lens block to, and

Described steady pin is used for penetrating described optical lens block and the described joints of optical fibre.

Optical module fixing device the most according to claim 8, wherein, described steady pin includes Head, cervical region and shank, described cervical region is between described head and described shank, and described cervical region External diameter is less than the external diameter of described head and described shank, and described first fixes and be formed with breach on key seat, institute State cervical region to be placed in described breach, outside the width of described breach is less than described head and described shank Footpath.

Optical module fixing device the most according to claim 9, wherein, this optical module is fixed Device also includes:

Second fixes key seat, and this second is fixed key seat and be fixed on described stator, the shank of described steady pin It is placed on described second to fix on key seat.