CN103941358B - Photoelectric conversion device and optical fiber coupling connector - Google Patents

Abstract

The invention relates to a photoelectric conversion device, which includes a circuit board, a plurality of light emitting modules, a plurality of light receiving modules and an optical coupling lens. The light emitting module and the light receiving module are fixed on the circuit board. The optical coupling lens includes vertical first and second optical surfaces, a reflective surface inclined relative to the first and second optical surfaces, a plurality of first converging lenses in a first straight line, a plurality of second converging lenses in a second straight line lens, a plurality of third converging lenses forming a third straight line, and a plurality of fourth converging lenses forming a fourth straight line. The first and second converging lenses are located on the first optical surface and correspond to the reflection surface. The third and fourth converging lenses are located on the second optical surface and correspond to the reflection surface. The first straight line is parallel to the second straight line, and the third straight line is parallel to the fourth straight line. The first converging lens corresponds to the third converging lens one by one and is aligned with the light emitting module one by one. The second converging lens corresponds to the fourth converging lens one by one and is aligned with the light receiving module one by one. The invention also relates to an optical fiber coupling connector.

Description

Photoelectric conversion device and optical fiber coupling connector

technical field

The invention relates to the field of Universal Serial Bus (USB), in particular to a photoelectric conversion device and an optical fiber coupling connector with the photoelectric conversion device.

Background technique

A fiber-coupled connector generally includes an optical-to-electrical conversion device and a plurality of optical fibers. Wherein, the photoelectric conversion device includes a circuit board, a light emitting module, a light receiving module and an optical coupling lens. The light-emitting module and the light-receiving module are fixed on the circuit board and arranged at intervals to form a first straight line. The optical coupling lens includes a first optical surface, a second optical surface perpendicular to the first optical surface, a reflective surface inclined to both the first optical surface and the second optical surface, and a plurality of optical surfaces located on the first optical surface and a first converging lens arranged in a second straight line and a plurality of second converging lenses located on the second optical surface and corresponding to the plurality of first converging lenses one-to-one. The second converging lenses are arranged in a third straight line. The optical coupling lens is fixed on the circuit board and aligns the plurality of first converging lenses with the light emitting module and the light receiving module respectively. The plurality of optical fibers are aligned with the plurality of second converging lenses, that is, the plurality of optical fibers are arranged in a fourth straight line.

When the optical fiber coupling connector transmits optical signals, the light-emitting module, the corresponding first converging lens, the reflecting surface, the corresponding second converging lens and the corresponding optical fiber form a light output channel. Correspondingly, the optical fiber, the corresponding second converging The lens, the reflective surface, the corresponding first converging lens and the corresponding light-receiving module constitute a light-incoming channel. In order to increase the transmission efficiency of optical signals, designers usually continue to arrange light-emitting modules and light-receiving modules on the first straight line, continue to arrange the first converging lens on the second straight line, and continue to arrange the second converging lens on the third straight line. Two converging lenses and continuous arrangement of optical fibers on the fourth straight line to increase the number of light exit channels and light entry channels. However, this will greatly increase the area of the photoelectric conversion device and the fiber coupling connector.

Contents of the invention

In view of this, it is necessary to provide a photoelectric conversion device and a fiber coupling connector with the photoelectric conversion device, which can increase the light output channel and the light input channel without increasing the area of the photoelectric conversion device and the fiber coupling connector. The number of channels improves the transmission efficiency of optical signals.

A photoelectric conversion device includes a circuit board, a plurality of light emitting modules, a plurality of light receiving modules and an optical coupling lens. The plurality of light-emitting modules and the plurality of light-receiving modules are fixed on the circuit board at intervals. The optical coupling lens includes a first optical surface, a second optical surface perpendicular to the first optical surface, a reflective surface inclined relative to the first optical surface and the second optical surface, and a plurality of optical surfaces arranged in a first straight line. A first converging lens, a plurality of second converging lenses arranged in a second line, a plurality of third converging lenses arranged in a third line, and a plurality of fourth converging lenses arranged in a fourth line. The plurality of first converging lenses and the plurality of second converging lenses are arranged on the first optical surface at intervals and correspond to the reflective surface. The plurality of third converging lenses and the plurality of fourth converging lenses are arranged on the second optical surface at intervals and correspond to the reflective surface. The first straight line is parallel to the second straight line, and the third straight line is parallel to the fourth straight line. The plurality of first converging lenses correspond to the plurality of third converging lenses one by one and are aligned with the light emitting module. The plurality of second converging lenses correspond one-to-one to the plurality of fourth converging lenses and are aligned with the light-receiving module. The reflective surface is used to reflect the light emitted by the light emitting module and enter through the corresponding first converging lens to the corresponding third converging lens and reflect the light entering through the plurality of fourth converging lenses to the corresponding second converging lens And enter the corresponding light receiving module through the corresponding second converging lens.

An optical fiber coupling connector includes an optical fiber component and the above-mentioned photoelectric conversion device. The fiber optic assembly includes a plurality of first optical fibers and a plurality of second optical fibers. The plurality of first optical fibers are aligned with the plurality of third converging lenses, and the plurality of second optical fibers are aligned with the plurality of fourth converging lenses.

Compared with the prior art, the optical fiber coupling connector and the photoelectric conversion device are arranged in a first straight line using the first converging lens, and the second converging lens is arranged in a second straight line parallel to the first straight line. The third converging lens is arranged in a third straight line, and the fourth converging lens is arranged in a fourth straight line parallel to the third straight line, so as to increase the area of the photoelectric conversion device and the optical fiber coupling connector without increasing The number of light-out channels and light-in channels improves the transmission efficiency of optical signals.

Description of drawings

FIG. 1 is a schematic perspective view of an optical fiber coupling connector provided by an embodiment of the present invention.

FIG. 2 is a partially exploded schematic diagram of the fiber coupling connector in FIG. 1 .

FIG. 3 is an exploded schematic view of the photoelectric conversion device of the fiber coupling connector in FIG. 1 .

FIG. 4 is a schematic perspective view of an optical coupling lens in the photoelectric conversion device in FIG. 3 .

FIG. 5 is a schematic perspective view of an optical fiber component in the optical fiber coupling connector in FIG. 1 .

FIG. 6 is an exploded schematic view of the fiber optic assembly in FIG. 5 .

FIG. 7 is a schematic perspective view of a fixed body of the fiber optic assembly in FIG. 5 .

FIG. 8 is a schematic perspective view of another viewing angle of the fixing body of the optical fiber assembly in FIG. 5 .

FIG. 9 is an enlarged schematic view of the optical fiber assembly IX in FIG. 5 .

Fig. 10 is a schematic cross-sectional view of the fiber coupling connector in Fig. 1 along line X-X.

FIG. 11 is a schematic cross-sectional view of the fiber coupling connector in FIG. 1 along line XI-XI.

Explanation of main component symbols

Fiber Coupler 100 photoelectric conversion device 10 circuit board 12 upper surface 122 lower surface 124 Lighting module 14 Receiver module 16 optical coupling lens 30 Body 32 top surface 322 top groove 3220 Reflective surface 3222 first side wall 3224 second side wall 3226 bottom surface 324 Bottom groove 3240 first optical surface 3242 Front 326 front groove 3260 second optical surface 3262 back 328 positioning post 33 Support 34 first converging lens 35 second converging lens 36 third converging lens 37 fourth converging lens 38 Fiber optic components 20 fixed body 40 first surface 41 first groove 410 first bottom surface 410a First Containment Chamber 411 First Containment Unit 412 first slope 412a second slope 412b Second Containment Unit 413 first bearing slot 414 second bottom surface 414a first cover bearing part 415 First glue container 416 first snap post 417 The first overflow tank 418 The bottom surface of the first overflow tank 418a second surface 42 second groove 420 third bottom 420a Second Containment Chamber 421 Third Containment Unit 422 third slope 422a fourth slope 422b Fourth Containment Unit 423 Second bearing slot 424 fourth bottom 424a Second cover carrying part 425 Second glue container 426 Second snap post 427 The second overflow tank 428 The bottom surface of the second overflow tank 428a front surface 43 positioning hole 430 back surface 44 first cover 50 The first cover body 51 first plane 512 first flange 52 first engaging surface 522 first engaging hole 52a second cover 60 Second cover body 61 second plane 612 second flange 62 Second engaging surface 622 Second engaging hole 62a first fiber 70 first body part 72 first front end 74 second fiber 80 second body part 82 second front end 84

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

detailed description

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 , which shows a fiber coupling connector 100 provided by an embodiment of the present invention. The fiber coupling connector 100 includes a photoelectric conversion device 10 and a fiber optic assembly 20 . The photoelectric conversion device 10 is inserted and optically coupled with the optical fiber assembly 20 .

Please refer to FIG. 2 and FIG. 3 together. The photoelectric conversion device 10 includes a circuit board 12 , four light emitting modules 14 , four light receiving modules 16 and an optical coupling lens 30 .

The circuit board 12 includes an upper surface 122 and a lower surface 124 . The upper surface 122 and the lower surface 124 are respectively located on opposite sides of the circuit board 12 , and the upper surface 122 is parallel to the lower surface 124 .

The four light-emitting modules 14 and the four light-receiving modules 16 are fixed on the upper surface 122 and are electrically connected to the circuit board 12 . Specifically, the four light emitting modules 14 are arranged in a straight line, the four light receiving modules 16 are arranged in a straight line, and the straight line of the four light emitting modules 14 is parallel to the straight line of the four light receiving modules 16 . In this embodiment, the four light emitting modules 14 can be vertical resonant plane laser diodes, which are used to convert electrical signals into optical signals and emit light to the outside. The four light receiving modules 16 are used to receive light from the outside and convert light signals into electrical signals.

Please refer to FIG. 3 , FIG. 4 and FIG. 10 , the optical coupling lens 30 includes a body portion 32 , two positioning posts 33 , a support portion 34 , four first converging lenses 35 , and four second converging lenses 36 , four third converging lenses 37 and four fourth converging lenses 38.

The main body 32 is substantially rectangular parallelepiped and includes a top surface 322 , a bottom surface 324 , a front surface 326 and a back surface 328 . The top surface 322 and the bottom surface 324 are located on opposite sides of the main body 32 , and the top surface 322 is parallel to the bottom surface 324 . The front 326 and the back 328 are located on two opposite sides of the main body 32 , and the front 326 is parallel to the back 328 . The front surface 326 vertically connects the top surface 322 and the bottom surface 324 , and the back surface 328 vertically connects the top surface 322 and the bottom surface 324 .

The top surface 322 defines a strip-shaped top surface groove 3220 . The top groove 3220 includes a reflective surface 3222 , a first sidewall 3224 and a second sidewall 3226 . The reflective surface 3222 is located at the bottom of the top groove 3220 . The first sidewall 3224 is vertically connected to the top surface 322 , the second sidewall 3226 is vertically connected to the top surface 322 , and the first sidewall 3224 is parallel to the second sidewall 3226 . The reflective surface 3222 is obliquely connected to the first sidewall 3224 and the second sidewall 3226 .

The bottom surface 324 defines a rectangular bottom surface groove 3240 . The bottom groove 3240 includes a first optical surface 3242 . The first optical surface 3242 is located at the bottom of the bottom groove 3240 and parallel to the bottom surface 324 . In this embodiment, the angle between the extended surface of the first optical surface 3242 and the extended surface of the reflective surface 3222 is 45 degrees. That is, the reflective surface 3222 is inclined 45 degrees relative to the first optical surface 3242 .

The front 326 defines a rectangular front groove 3260 . The front groove 3260 includes a second optical surface 3262 . The second optical surface 3262 is located at the bottom of the front groove 3260 and parallel to the front surface 326 . In this embodiment, the angle between the extended surface of the second optical surface 3262 and the extended surface of the reflective surface 3222 is 45 degrees. That is, the reflective surface 3222 is inclined 45 degrees relative to the second optical surface 3262 .

The two positioning columns 33 are perpendicular to the front surface 326 and extend away from the front groove 3260 . The front groove 3260 is located between the two positioning posts 33 . The positioning post 33 is used for positioning when the photoelectric conversion device 10 is inserted into the optical fiber assembly 20 .

The supporting portion 34 is an annular structure. The supporting portion 34 is perpendicular to the bottom surface 324 and extends away from the bottom surface groove 3240 . The supporting portion 34 surrounds the bottom groove 3240 . The supporting portion 34 is used for directly contacting the circuit board 12 and being glued on the circuit board 12 when the optical coupling lens 30 is installed on the circuit board 12 .

The four first converging lenses 35 are located on the first optical surface 3242 and opposite to the reflective surface 3222 . The four second converging lenses 36 are located on the first optical surface 3242 and opposite to the reflective surface 3222 . The four first converging lenses 35 are arranged at intervals in a first straight line. The four second converging lenses 36 are arranged in a second straight line at intervals from each other. The first straight line formed by the four first converging lenses 35 is parallel to the second straight line formed by the four second converging lenses 36, and the first straight line is directed toward the first straight line in a direction perpendicular to the second straight line. After the two straight lines are projected, there is an overlapping part with the second straight line. In this embodiment, the first straight line and the second straight line are along the length direction of the first optical surface 3242, and the four first converging lenses 35 and the first optical surface 3242 in the width direction The four second converging lenses 36 are aligned one by one, that is, the first straight line is projected toward the second straight line along a direction perpendicular to the second straight line and completely overlaps the second straight line. In use, the four first converging lenses 35 are used to align with the four light emitting modules 14 to receive light from the corresponding light emitting modules 14, and the four second converging lenses 36 are used to align with the four light emitting modules 14. The light receiving modules 16 are aligned so that the light emitted from the four second converging lenses 36 enters the corresponding light receiving modules 16 .

The four third converging lenses 37 are located on the second optical surface 3262 and opposite to the reflective surface 3222 . The four fourth converging lenses 38 are located on the second optical surface 3262 and opposite to the reflective surface 3222 . The four third converging lenses 37 are arranged in a third straight line at intervals and correspond to the four first converging lenses 35 one by one. The four fourth converging lenses 38 are arranged in a fourth straight line at intervals and correspond to the four second converging lenses 36 one by one. The fourth straight line formed by the four fourth converging lenses 38 is parallel to the third straight line formed by the four third converging lenses 37, and the third straight line is directed toward the fourth straight line in a direction perpendicular to the fourth straight line. The part that overlaps with the fourth straight line after projection. In this embodiment, the third straight line and the fourth straight line are along the length direction of the second optical surface 3262, and the four third converging lenses 37 and the four The fourth converging lenses 38 are aligned one by one, that is, the third straight line is projected toward the fourth straight line along the direction perpendicular to the fourth straight line and completely overlaps with the fourth straight line. In this embodiment, the four first converging lenses 35 , the four second converging lenses 36 , the four third converging lenses 37 and the four fourth converging lenses 38 are convex lenses.

In this embodiment, the optical coupling lens 30 is integrally formed by injection molding, that is, the body part 32, the two positioning posts 33, the support part 34, the four first converging lenses 35, the four The second converging lens 36 , the four third converging lenses 37 and the four fourth converging lenses 38 are all integral structures.

Referring to FIG. 5 , the fiber optic assembly 20 includes a fixing body 40 , a first cover 50 , a second cover 60 , four first optical fibers 70 and four second optical fibers 80 .

Please refer to FIG. 6 , the fixing body 40 is substantially rectangular parallelepiped, and includes a first surface 41 , a second surface 42 , a front surface 43 and a rear surface 44 . The first surface 41 and the second surface 42 are located on opposite sides of the fixing body 40 , and the first surface 41 is parallel to the second surface 42 . The front surface 43 and the rear surface 44 are located on opposite sides of the fixing body 40 , and the front surface 43 is parallel to the rear surface 44 . The front surface 43 is vertically connected to the first surface 41 and the second surface 42 , and two positioning holes 430 are defined on the front surface 43 . The rear surface 44 is vertically connected to the first surface 41 and the second surface 42 .

Please refer to FIG. 8 , a rectangular first groove 410 , two first bearing grooves 414 and two first glue overflow grooves 418 are defined on the first surface 41 .

The first groove 410 penetrates the front surface 43 and the rear surface 44 and is located between the two positioning holes 430 . The first groove 410 includes a first bottom surface 410a at the bottom thereof. Four first receiving cavities 411 for receiving the four first optical fibers 70 are defined on the first bottom surface 410 a. Each first receiving cavity 411 penetrates the front surface 43 and the rear surface 44 , and each first receiving cavity 411 includes a first receiving portion 412 and a second receiving portion 413 . The first receiving portion 412 and the second receiving portion 413 are arranged sequentially along the direction from the front surface 43 to the rear surface 44 . In this embodiment, the first receiving portion 412 is V-shaped, and the second receiving portion 413 is semicircular. Referring to FIG. 9 , each first receiving portion 412 includes a first slope 412 a and a second slope 412 b. The second slope 412b is obliquely connected to the first slope 412a.

Please refer to FIG. 8 , the two first bearing grooves 414 are respectively located on opposite sides of the first groove 410 and communicate with the first groove 410 . The two first receiving slots 414 are both close to the front surface 43 . In this embodiment, the two first bearing grooves 414 are symmetrical about the first groove 410 , and each first bearing groove 414 penetrates the front surface 43 . Each first bearing groove 414 includes a second bottom surface 414 a , a first cover bearing portion 415 , and a first adhesive accommodating portion 416 communicated with the first cover bearing portion 415 . The second bottom surface 414 a is higher than the first bottom surface 410 a, that is, the depth of the first carrying groove 414 is shallower than that of the first groove 410 . Each first adhesive accommodating portion 416 communicates with the first groove 410 through the corresponding first cover bearing portion 415 . The two first engaging columns 417 extend perpendicularly to the second bottom surface 414 a, and the two first engaging columns 417 are respectively located in the two first cover bearing portions 415 .

The two first glue overflow grooves 418 are respectively located on opposite sides of the first groove 410 and communicate with the first groove 410 . The two first glue overflow grooves 418 are close to the rear surface 44 . In this embodiment, the two first glue overflow grooves 418 are symmetrical about the first groove 410 . The bottom surface 418a of each first glue overflow groove 418 is on the same level as the first bottom surface 410a.

Please refer to FIG. 7 , the structure of the second surface 42 is the same as that of the first surface 41 . Specifically, a rectangular second groove 420 , two second bearing grooves 424 and two second glue overflow grooves 428 are defined on the second surface 42 .

The second groove 420 penetrates the front surface 43 and the rear surface 44 and is located between the two positioning holes 430 . The second groove 420 includes a third bottom surface 420a at the bottom thereof. Four second receiving cavities 421 for receiving the four second optical fibers 80 are defined on the third bottom surface 420 a. Each second receiving cavity 421 penetrates the front surface 43 and the rear surface 44 , and each second receiving cavity 421 includes a third receiving portion 422 and a fourth receiving portion 423 . The third receiving portion 422 and the fourth receiving portion 423 are arranged sequentially along the direction from the front surface 43 to the rear surface 44 . In this embodiment, the third receiving portion 422 is V-shaped, and the fourth receiving portion 423 is semicircular. Referring to FIG. 9 , each third receiving portion 422 includes a third slope 422 a and a fourth slope 422 b. The fourth slope 422b is obliquely connected to the third slope 422a.

Please refer to FIG. 7 , the two second bearing grooves 424 are respectively located on opposite sides of the second groove 420 and communicate with the second groove 420 . The two second receiving slots 424 are both close to the front surface 43 . In this embodiment, the two second bearing grooves 424 are symmetrical with respect to the second groove 420 , and each second bearing groove 424 penetrates through the front surface 43 . Each second receiving groove 424 includes a fourth bottom surface 424 a , a second cover supporting portion 425 , and a second adhesive accommodating portion 426 communicating with the second cover supporting portion 425 . The fourth bottom surface 424 a is higher than the third bottom surface 420 a, that is, the depth of the second carrying groove 424 is shallower than that of the second groove 420 . Each second adhesive accommodating portion 426 communicates with the second groove 420 through the corresponding second cover carrying portion 425 . The two second engaging posts 427 extend perpendicularly to the fourth bottom surface 424 a , and the two second engaging posts 427 are respectively located in the two second cover bearing portions 425 .

The two second glue overflow grooves 428 are respectively located on opposite sides of the second groove 420 and communicate with the second groove 420 . The two second glue overflow grooves 428 are close to the rear surface 44 . In this embodiment, the two second glue overflow grooves 428 are symmetrical about the second groove 420 . The bottom surface 428a of each second glue overflow groove 428 is on the same level as the third bottom surface 420a.

Please refer to FIG. 6 , the shape of the first cover 50 is matched with the two first cover supporting parts 415 and the first groove 410 . The first cover 50 is made of anti-ultraviolet material. The direction in which the first cover 50 is inserted into the fixing body 40 is perpendicular to the length direction of the first receiving cavity 411 .

Specifically, the first cover 50 includes a first cover body 51 and two first flanges 52 respectively protruding from opposite sides of the first cover body 51 . The first cover body 51 is substantially rectangular parallelepiped and includes a first plane 512 . Each first flange 52 includes a first engaging surface 522 and a first engaging hole 52 a on the first engaging surface 522 . The two first engaging holes 52 a correspond to the two first engaging posts 417 respectively. Each first engaging hole 52a may be a through hole or a blind hole. In this embodiment, the first engagement hole 52a is a through hole.

The shape of the second cover 60 is matched with the two second cover supporting parts 425 and the second groove 420 . The second cover 60 is made of anti-ultraviolet material. The direction in which the second cover 60 is inserted into the fixing body 40 is perpendicular to the length direction of the second receiving cavity 421 .

Specifically, the second cover 60 includes a second cover body 61 and two second flanges 62 respectively protruding from opposite sides of the second cover body 61 . The second cover body 61 is substantially rectangular parallelepiped and includes a second plane 612 . Each second flange 62 includes a second engaging surface 622 and a second engaging hole 62 a on the second engaging surface 622 . The two second engaging holes 62 a correspond to the two second engaging posts 427 respectively. Each second engaging hole 62a may be a through hole or a blind hole. In this embodiment, the second engagement hole 62a is a through hole.

Please refer to FIG. 5 , FIG. 6 and FIG. 10 , the four first optical fibers 70 are accommodated in the four first receiving cavities 411 . Each first optical fiber 70 includes a first body portion 72 and a first front end portion 74 . The cross-section of the first body portion 72 is circular and includes an optical fiber core and a cladding layer covering the optical fiber core. The cross-section of the first front end portion 74 is circular and has the same center as the first body portion 72 . The first front end portion 74 is an optical fiber core extending from the first body portion 72 .

The four second optical fibers 80 are accommodated in the four second receiving cavities 421 . Each second optical fiber 80 includes a second body portion 82 and a second front end portion 84 . The second body portion 82 has a circular cross-section and includes an optical fiber core and a cladding layer covering the optical fiber core. The cross-section of the second front end portion 84 is circular and has the same center as the second body portion 82 . The second front end portion 84 is an optical fiber core extending from the second body portion 82 .

Referring to FIGS. 5 to 9 , when assembling the four first optical fibers 70 in the first groove 410 , firstly, the four first optical fibers 70 are placed in the four first receiving cavities 411 from top to bottom. Specifically, each first front end portion 74 is accommodated in a corresponding first receiving portion 412 , and each first body portion 72 is accommodated in a corresponding second receiving portion 413 . Next, the first cover body 50 is inserted into the fixed body 40, the two first flanges 52 are respectively accommodated in the two first cover bearing portions 415, and the first cover body 51 is accommodated in the first groove 410. Inside. Specifically, the two first engaging posts 417 are respectively engaged in the two first engaging holes 52a, each first engaging surface 522 is in contact with the second bottom surface 414a, the first plane 512, the first inclined surface 412a and The second inclined surfaces 412b cooperate to fix the first front end portion 74 in the corresponding first receiving portion 412 . That is, the outer peripheral surface of the first front end portion 74 is in contact with the first flat surface 512 , the first inclined surface 412 a and the second inclined surface 412 b. Then, glue is applied to the first cover 50 so that the first cover 50 is fixed on the fixing body 40 by gluing. Finally, glue is dispensed on the first body portion 72 to fix the first body portion 72 in the second receiving portion 413 . During the above-mentioned process of assembling the first optical fiber 70 , if there is too much glue when dispensing glue on the first cover 50 , the excess glue can flow into the corresponding first glue containing portion 416 . If there is too much glue when dispensing glue on the first body portion 72 , excess glue can flow into the corresponding first glue overflow groove 418 .

When assembling the four second optical fibers 80 in the second groove 420 , firstly, the four second optical fibers 80 are placed in the four second receiving cavities 421 from top to bottom. Specifically, each second front end portion 84 is accommodated in a corresponding third receiving portion 422 , and each second body portion 82 is accommodated in a corresponding fourth receiving portion 423 . Next, the second cover 60 is inserted into the fixed body 40, the two second flanges 62 are respectively accommodated in the two second cover bearing parts 425, and the second cover body 61 is accommodated in the second groove 420. Inside. Specifically, the two second engaging posts 427 are respectively engaged in the two second engaging holes 62a, each second engaging surface 622 is in contact with the fourth bottom surface 424a, the second plane 612, the third inclined surface 422a and The fourth inclined surfaces 422b work together to fix the second front end portion 84 in the corresponding third receiving portion 422 . That is, the outer peripheral surface of the second front end portion 84 is in contact with the second plane 612 , the third slope 422 a and the fourth slope 422 b. Then, glue is applied to the second cover 60 so that the second cover 60 is fixed on the fixing body 40 by gluing. Finally, glue is dispensed on the second body portion 82 to fix the second body portion 82 in the fourth receiving portion 423 . During the above-mentioned process of assembling the second optical fiber 80 , if there is too much glue when dispensing glue on the second cover 60 , the excess glue can flow into the corresponding second glue containing portion 426 . If there is too much glue when dispensing glue on the second body part 82 , excess glue can flow into the corresponding second glue overflow groove 428 .

1 to 5, FIG. 10 and FIG. 11, when assembling the optical fiber coupling connector 100, first, the support portion 34 is carried on the upper surface 122 and the four first converging lenses 35 and the four The light emitting modules 14 are aligned one by one and the four second converging lenses 36 are aligned with the four light receiving modules 16 one by one. Next, dispensing glue around the supporting portion 34 to fix the optical coupling lens 30 on the circuit board 12 by gluing to complete the assembly of the photoelectric conversion device 10 . Then, the two positioning posts 33 engage with the two positioning holes 430 to realize the insertion between the optical fiber assembly 20 and the photoelectric conversion device 10 , thereby completing the assembly of the optical fiber coupling connector 100 . At this time, the four third converging lenses 37 are aligned with the four first optical fibers 70 one by one, and the four fourth converging lenses 38 are aligned with the four second optical fibers 80 one by one.

Please refer to Fig. 10. During operation, the light emitted by the light emitting module 14 is transformed into parallel light by the corresponding first converging lens 35 and enters the interior of the optical coupling lens 30, and is reflected by the reflecting surface 3222 and changed by 90 degrees to the corresponding third The converging lens 37 is finally converged by the corresponding third converging lens 37 and enters the corresponding first optical fiber 70 . Correspondingly, the light from the second optical fiber 80 enters the optical coupling lens 30 in the form of a parallel beam after passing through the fourth converging lens 38, and then is reflected by the reflecting surface 3222 and changed by 90 degrees to the corresponding second converging lens 36, Finally, the corresponding second converging lens 36 converges the light signal into the corresponding light receiving module 16, and the light receiving module 16 converts the light signal into an electrical signal for subsequent processing.

The optical fiber coupling connector 100 and the photoelectric conversion device 10 in this embodiment are arranged in a first straight line using the first converging lens 35, the second converging lens 36 is arranged in a second straight line parallel to the first straight line, and the third converging lens 36 is arranged in a second straight line parallel to the first straight line. The lenses 37 are arranged in a third straight line, and the fourth converging lens 38 is arranged in a fourth straight line parallel to the third straight line, so as to increase the light output channel without increasing the area of the photoelectric conversion device 10 and the optical fiber coupling connector 100 And the number of light-incoming channels improves the transmission efficiency of light signals.

It can be understood that those skilled in the art can make various other corresponding changes and modifications according to the technical concept of the present invention, and all these changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (9)

1. a kind of photoelectric conversion device, it includes circuit board, multiple light emitting module, multiple receipts optical module and optical coupling lens, The plurality of light emitting module and the plurality of receipts optical module spaced reciprocally fixed on the board, this optical coupling lens includes first Optical surface second optical surface vertical with this first optical surface and this first optical surface relative and this second optical surface all tilt Reflecting surface it is characterised in that this optical coupling lens also includes multiple the first collecting lenses being arranged in first straight line, Duo Gepai Arrange into the second collecting lenses of second straight line, multiple are arranged in the 3rd collecting lenses of the 3rd straight line and multiple are arranged in the 4th 4th collecting lenses of straight line, the plurality of first collecting lenses and the plurality of second collecting lenses be arranged on spaced reciprocally this On one optical surface and corresponding with this reflecting surface, the plurality of 3rd collecting lenses and the plurality of 4th collecting lenses are spaced reciprocally It is arranged on this second optical surface and corresponding with this reflecting surface, this first straight line is parallel to this second straight line, the 3rd straight line Parallel to the 4th straight line, the plurality of first collecting lenses correspond with the plurality of 3rd collecting lenses and with this light emitting module Be aligned one by one, the plurality of second collecting lenses correspond with the plurality of 4th collecting lenses and with a pair of this receipts optical module 1 Standard, this reflecting surface is used for being sent by this light emitting module and reflexes to correspondence through the light that corresponding first collecting lenses enter The 3rd collecting lenses and will by the plurality of 4th collecting lenses enter light reflex to corresponding second collecting lenses warp Corresponding second collecting lenses enter corresponding receipts optical module；This optical coupling lens includes body, this body include top surface, Before opposite bottom surface parallel with this top surface, vertical this top surface of connection and this bottom surface and back side opposite with this frontoparallel, This top surface offers top surface groove, and the bottom of this top surface groove is this reflecting surface, this top surface groove include the first side wall and with this The parallel relative second sidewall of the first side wall, this first side wall is vertical with this top surface to be connected, and this second sidewall is vertical with this top surface Connect, this reflecting surface all tilts to be connected with this first side wall and this second sidewall.

2., it is characterised in that this bottom surface offers bottom recesses, this bottom surface is recessed for photoelectric conversion device as claimed in claim 1 The bottom of groove is this first optical surface, above should offer above groove, and the bottom of this above groove is this second optical surface.

3. photoelectric conversion device as claimed in claim 2 is it is characterised in that this reflecting surface tilts 45 relative to this first optical surface Degree, this reflecting surface tilts 45 degree relative to this second optical surface.

4. photoelectric conversion device as claimed in claim 2 is it is characterised in that this optical coupling lens also includes the support of ring-type Portion, this supporting part this bottom surface vertical extends and around this bottom recesses.

5. a kind of optical-fiber coupling connector, it includes optical fiber component and photoelectric conversion device as claimed in claim 1, this optical fiber Assembly includes multiple first optical fiber and multiple second optical fiber, the plurality of first optical fiber and the plurality of 3rd collecting lenses one a pair Standard, the plurality of second optical fiber is aligned one by one with the plurality of 4th collecting lenses.

6. optical-fiber coupling connector as claimed in claim 5 is it is characterised in that this optical coupling lens includes body, this Body include top surface opposite bottom surface parallel with this top surface, vertical this top surface of connection and this bottom surface above and with this before put down The opposite back side of row, this top surface offers top surface groove, and the bottom of this top surface groove is this reflecting surface, and this bottom surface offers bottom surface Groove, the bottom of this bottom recesses is this first optical surface, above should offer above groove, this above the bottom of groove be should Second optical surface.

7. optical-fiber coupling connector as claimed in claim 6 it is characterised in that this optical fiber component also include fixing body, the One lid and the second lid, this fixation body includes parallel opposite first surface and second surface, and this first surface offers First groove, this first lid presses the plurality of first optical fiber in this first groove, and this second surface offers the second groove, This second lid presses the plurality of second optical fiber in this second groove.

8. optical-fiber coupling connector as claimed in claim 7 is it is characterised in that this first surface is further opened with two first holds Carry groove and two the first excessive glue grooves, this two first bearing grooves are located at the opposite sides of this first groove and are connected with this first groove Logical, this two the first excessive glue grooves are located at the opposite sides of this first groove and are connected with this first groove, the bottom of this first groove Portion offers multiple first host cavities, and the plurality of first optical fiber is contained in the plurality of first collecting intracavity, each first optical fiber respectively All include first body and the first leading section, this first body includes fiber cores and the clad coating this fiber cores, should First leading section is the fiber cores extended from this first body, and this first lid presses this first leading section and carries In this two first bearing grooves, this two the first excessive glue grooves are corresponding with this first body.

9. optical-fiber coupling connector as claimed in claim 8 is it is characterised in that this second surface is further opened with two second holds Carry groove and two the second excessive glue grooves, this two second bearing grooves are located at the opposite sides of this second groove and are connected with this second groove Logical, this two the second excessive glue grooves are located at the opposite sides of this second groove and are connected with this second groove, the bottom of this second groove Portion offers multiple second host cavities, and the plurality of second optical fiber is contained in the plurality of second collecting intracavity, each second optical fiber respectively All include the second body and the second leading section, this second body includes fiber cores and the clad coating this fiber cores, should Second leading section is the fiber cores extended from this second body, and this second lid presses this second leading section and carries In this two second bearing grooves, this two the second excessive glue grooves are corresponding with this second body.