CN220820302U - POF connector - Google Patents

Abstract

The utility model discloses a POF connector, which comprises a POF female seat connector and a POF male connector, wherein the POF female seat connector comprises: the insulating seat is provided with a pair of slots and an installation position; a lens module mounted in the mounting location; the lens module comprises a plastic optical fiber lens, wherein the input end of a lens body in the plastic optical fiber lens is exposed in the opposite inserting groove, and the output end of the lens body is exposed at the lower end of the insulating seat; the insulation seat is arranged on the PCB, and the output end of the lens body is in butt joint with the optical fiber chip arranged on the PCB; the POF male connector comprises an insulator, a plastic core barrel and an optical fiber wire, wherein the front part of the insulator is provided with an opposite convex part, and the insulator is provided with a spring arm; the rear end of the insulator is provided with a second-level buckle seat; the opposite inserting convex part and the spring arm are inserted into the opposite inserting groove, the optical fiber wire corresponds to the input end of the lens body, the buckling body on the spring arm is buckled and fixed with the buckling hole arranged on the inner wall of the opposite inserting groove, the stage buckling seat slides towards the direction of the spring arm, and the spring arm is jacked upwards to form a support for the spring arm.

Description

POF connector

Technical field:

The utility model relates to the technical field of connectors, in particular to a POF connector.

The background technology is as follows:

With the continuous development of optical fiber communication technology, the requirements of optical fiber cables and optical fiber connectors for matched application are also increasing.

Plastic optical fiber, english Plastic Optical Fiber. Plastic Optical Fibers (POF) are a type of optical fibers (optical fibers) that have a highly transparent polymer such as Polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) as a core material, PMMA, fluoroplastic, etc. as a sheath material. The plastic optical fiber is used as a substitute for quartz optical fiber, and is a data transmission medium with low cost, light weight and convenient installation and use. It is especially suitable for short-distance, medium-small capacity and connector-rich systems (such as access networks). In comparison with the multi-filament optical fiber, the plastic optical fiber is soft, mechanically flexible, dust-resistant, and easy to install and maintain, and it is particularly important that the POF core diameter is usually 0.5mm or more, whereas the multi-filament quartz optical fiber core diameter is 62.5 micrometers or 50 micrometers, and the POF connection alignment is easy by about 10 times, and even if there is a deviation of ±30 micrometers in the connection between the step-type POF having a core diameter of 980 micrometers and the graded-type POF having a core diameter of 500 micrometers, the coupling loss (about 0.03dB increase loss) is not seriously affected, and an inexpensive injection molded connector can be used, thereby significantly reducing the total cost of the system. The plastic optical fiber is mainly widely used in civil fields such as electric power, medical treatment, automobiles and the like.

Chinese patent (CN 205562890U) discloses a plastic fiber optic receptacle structure, which comprises: the plastic optical fiber socket comprises two grooves and optical fiber holes respectively positioned in the grooves, wherein the lower side walls of the grooves are respectively provided with a notch, the left side surface and the right side surface of the grooves respectively comprise a clamping groove, and the bottom of the grooves comprises a fixing buckle position; the optical fiber chip comprises a main body and pins, wherein the main body comprises an optical fiber chip receiving port which is accommodated in the groove, and the pins extend out through the notch of the groove; the plastic optical fiber cover plate is provided with a buckle at two sides, and the buckle is fixed in the clamping groove, so that the front end surface of the plastic optical fiber cover plate props against the main body of the optical fiber chip; the PCB comprises a fixing hole for fixing the fixing buckle position and a welding hole for welding connection with the pin; the plastic optical fiber wire passes through the optical fiber hole and is connected with the optical fiber chip receiving port; and the plastic optical fiber handle is used for fixing the plastic optical fiber wire on the plastic optical fiber socket.

However, since the plastic fiber socket structure directly adopts the plastic fiber socket to be matched with the plastic fiber cover plate to fix the fiber chip, the pins of the fiber chip are welded and fixed with the PCB, that is, the plastic fiber socket structure is directly provided with the fiber chip, and an additional structure is required to fix the fiber chip, the structure is complicated, and the structure is not suitable for the scene that the fiber chip is welded and fixed on the PCB and only optical signals are required to be transmitted.

In addition, chinese utility model of patent No. ZL202320232951.6 discloses an optical fiber plug structure, which includes: the optical cable, the surface fixed mounting of optical cable has fixed cover, the surface that the optical cable is close to one end is provided with the installation component, the one end of optical cable is provided with the plug body, and this plug body is used for inserting in the slot of fiber receptacle to form optical signal transmission. However, the plug body is not provided with a locking structure, so that stable connection cannot be realized after the plug body is inserted with the optical fiber socket, the phenomenon of relative separation caused by external influence is easy to occur, and stable optical signal transmission cannot be realized.

In view of this, the present inventors have proposed the following means.

The utility model comprises the following steps:

the utility model aims to overcome the defects of the prior art and provides a POF connector.

In order to solve the technical problems, the utility model adopts the following technical scheme: the POF connector comprises a POF female connector and a POF male connector which is inserted with the POF female connector, wherein the POF female connector comprises: an insulating base having a pair of slots for mating with the POF male connector and a mounting location in communication with the pair of slots; a lens module mounted in the mounting location; the lens module comprises a plastic optical fiber lens, wherein the input end of a lens body in the plastic optical fiber lens is exposed in the opposite inserting groove, and the output end of the lens body is exposed at the lower end of the insulating seat; the insulation seat is arranged on the PCB, and the output end of the lens body is in butt joint with an optical fiber chip arranged on the PCB; the POF male connector comprises an insulator, a plastic core barrel penetrating and installed in the insulator, and an optical fiber wire fixedly penetrating and installed in the plastic core barrel, wherein the front part of the insulator is provided with a butt-inserting convex part, the front end of the plastic core barrel is exposed at the front end face of the butt-inserting convex part, an elastic arm for butt-inserting with a butt-inserting groove is formed on the insulator, and a buckle body is arranged on the elastic arm; the rear end of the insulator is also provided with a second-stage buckle seat which can slide in a front-back push-pull manner and is used for jacking up the spring arm so as to realize the support of the spring arm; the opposite inserting convex part and the spring arm of the POF male connector are inserted into the opposite inserting grooves, the optical fiber wire corresponds to the input end of the lens body, the buckling body on the spring arm is buckled and fixed with the buckling hole formed in the inner wall of the opposite inserting groove, the secondary buckling seat slides towards the spring arm, and the spring arm is jacked upwards to form a support for the spring arm.

Furthermore, in the above technical solution, the lens module further includes a bracket, and the plastic optical fiber lens is fixed in the bracket; the support is characterized in that an inverted buckle is arranged on the outer side of the support, a buckling hole is formed in the inner wall of the installation position, the inverted buckle is clamped into the buckling hole and can move up and down relative to the buckling hole, a metal elastic sheet is further arranged between the support and the installation position, and the metal elastic sheet elastically supports the support relative to the insulating seat, so that the support is fixed in the installation position in an elastically floating mode.

Furthermore, in the above technical solution, the lower end of the bracket is provided with a mounting groove, the upper end of the bracket is provided with a docking window penetrating through the mounting groove, the plastic optical fiber lens is mounted in the mounting groove, the input end of the plastic optical fiber lens is exposed in the docking window, and the output end of the plastic optical fiber lens is exposed out of plane; the metal elastic sheet is embedded and installed in a limit groove arranged at the upper end of the support, a plurality of elastic force arms protruding upwards are formed on the metal elastic sheet, and the elastic force arms are contacted with the bottom surface of the installation position.

Furthermore, in the above technical solution, a non-circular positioning buckle is further disposed in the mounting groove; the plastic optical fiber lens is provided with a through second positioning hole, and the positioning buckle passes through the second positioning hole to be buckled and positioned with the plastic optical fiber lens; the installation groove is internally provided with a plurality of pressing convex parts, and the pressing convex parts are pressed against the periphery of the plastic optical fiber lens to limit the plastic optical fiber lens.

Furthermore, in the above technical solution, the plastic optical fiber lens includes a base and the lens body integrally fixed on the base, the lens body has an input end and an output end, and the input end and the output end are correspondingly distributed; the lower end face of the support is also provided with a yielding groove for accommodating the optical fiber chip, and the output end of the plastic optical fiber lens is exposed in the yielding groove.

Furthermore, in the above technical solution, a plurality of positioning protruding columns are formed on the lower end surface of the insulating seat; four corners of the insulating seat are respectively provided with a guide groove penetrating through the mounting position; the four corners of the bracket are provided with guide blocks, and the guide blocks are embedded into the guide grooves; the positioning convex column is divided into a first positioning column and a second positioning column along a slot with an upward opening on the bottom surface, and a buckling part which protrudes outwards is formed on the periphery of the lower end of the second positioning column.

In the technical scheme, a secondary buckle is formed at the front end of the secondary buckle seat, and an inclined plane is formed on the top surface of the front end of the secondary buckle; the secondary buckle is arranged in the guide groove of the lower end surface of the spring arm, when the secondary buckle seat is pushed forwards, the inclined surface of the secondary buckle contacts with the lower end surface of the spring arm, and the spring arm is jacked upwards to form a support for the spring arm.

In the technical scheme, the rear end of the insulator is provided with a sliding groove, the inner walls of the two sides of the sliding groove are respectively provided with a rail groove, the two sides of the secondary buckling seat are respectively provided with a convex rail matched with the rail grooves, the secondary buckling seat is installed in the sliding groove in a sliding manner, the convex rails are embedded into the rail grooves, and an anti-skid pushing part on the secondary buckling seat is exposed out of the upper end face of the insulator; the two sides of the bottom surface of the sliding groove are also provided with travel grooves; the two sides of the lower end of the secondary buckle seat are also provided with inclined plane sliding blocks which are matched with the travel grooves, and the inclined plane sliding blocks are arranged in the travel grooves.

In the technical scheme, an annular groove and a rotation stopping groove which is positioned beside and communicated with the annular groove are formed in the outer side face of the front end of the opposite insertion convex part; the sealing ring is sleeved in the annular groove, the anti-rotation convex part at the outer side of the sealing ring is embedded into the anti-rotation groove, and the front ends of the pair of inserting convex parts are in sealing contact with the bottoms of the pair of inserting grooves through the sealing ring.

In the technical scheme, the rear end of the plastic core barrel is provided with the O-shaped ring and the positioning ring groove positioned at the rear end of the O-shaped ring, and the plastic core barrel is assembled with the insulator in a sealing way through the O-shaped ring; the insulator is provided with a core hole penetrating through the front end face forwards along the rear end face of the insulator, the lower end face of the insulator is also provided with a semi-square fastening groove penetrating through the core hole, a limit seat is also fastened and fixed in the fastening groove of the lower end face of the insulator, and a limit convex part formed in the limit seat is embedded into the positioning ring groove to prevent the plastic core barrel from retreating; elastic buckling bodies are formed on two sides of the limiting seat, buckling groove bodies are formed on two sides of the buckling groove, and the elastic buckling bodies are buckled and fixed with the buckling groove bodies.

By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

1. When the POF optical fiber connector is used, the POF male connector and the POF female connector are inserted in opposite directions, the elastic arm and the opposite-inserting convex part of the POF male connector are inserted into the slot of the POF female connector, the buckling body is buckled and fixed with the buckling hole of the POF female connector, so that the POF male connector and the POF female connector are stably connected, and the plastic core barrel corresponds to the plastic optical fiber lens in the POF female connector, so that the transmission of optical signals is realized. In addition, the secondary buckling seat additionally arranged on the insulator can slide in a front-back pushing manner and is used for jacking up the elastic arm to support the elastic arm, so that the elastic arm is locked secondarily, the elastic arm can be effectively prevented from being pressed down, the purpose of locking is achieved, the phenomenon that the buckling body of the elastic arm is separated from the buckling hole of the POF female seat connector to unlock accidentally can be avoided, the POF male connector and the POF female seat connector form stable connection, accidental separation is avoided, and the quality of optical signal transmission can be further ensured.

2. The POF female connector does not need to be provided with an optical fiber chip, does not need to be provided with an additional structure for fixing the optical fiber chip, has a relatively simple structure, is only in butt joint with the optical fiber chip through a lens body in a plastic optical fiber lens, transmits optical signals to the optical fiber chip, and finally receives the optical signals by the optical fiber chip, and is particularly suitable for being applied to the scene that the optical fiber chip is welded and fixed on a PCB and only needs to transmit the optical signals.

3. The bracket of the POF female seat connector and the plastic optical fiber lens fixed on the bracket can elastically float relative to the insulating seat, so that in the actual use process, after the POF female seat connector is fixedly arranged on the PCB, the plastic optical fiber lens and the optical fiber chip on the PCB form elastic contact, a gap between the plastic optical fiber lens and the optical fiber chip can be avoided, the optical signal transmission quality of the plastic optical fiber lens can be ensured, the plastic optical fiber lens or the optical fiber chip is not damaged due to rigid contact, and the service life and the quality of a product are ensured.

Description of the drawings:

fig. 1 is a perspective view of a POF female connector of the present utility model from a first perspective;

fig. 2 is a perspective view of the POF female connector of the present utility model from a second perspective;

Fig. 3 is an exploded perspective view of the POF female connector of the present utility model;

Fig. 4 is a perspective view of a third view of the POF female connector of the present utility model;

FIG. 5 is a perspective view of an insulating base according to the present utility model;

FIG. 6 is an assembly view of a lens module according to the present utility model;

FIG. 7 is a perspective view of a stent of the present utility model;

FIG. 8 is a perspective view of the present utility model docked with a fiber optic chip;

fig. 9 is an assembly view of the present utility model and a PCB board.

Fig. 10 is a perspective view of the POF male connector of the present utility model;

fig. 11 is a perspective view of another view of the POF male connector of the present utility model;

fig. 12 is an exploded perspective view of the POF male connector of the present utility model;

Fig. 13 is a cross-sectional view of the POF male connector of the present utility model;

Fig. 14 is a perspective view of the POF male connector of the present utility model after removal of the stop block;

FIG. 15 is a perspective view of a secondary buckle seat according to the present utility model;

Fig. 16 is a perspective view of the present utility model.

The specific embodiment is as follows:

the utility model will be further described with reference to specific examples and figures.

Referring to fig. 1-16, a POF connector includes a POF female connector 100 and a POF male connector 200 that is inserted into the POF female connector 100.

Referring to fig. 1-9, the POF female connector 100 is mounted on the PCB 4 and is used for transmitting optical signals to an optical fiber chip 41 mounted on the PCB 4, and the optical fiber chip 41 receives the optical signals.

The POF female connector 100 includes: an insulating base 1 and a lens module 300.

Wherein the insulating base 1 has an opposite slot 12 for opposite-inserting with the POF male connector 200 and a mounting position 11 communicating with the opposite slot 12; the lens module 300 is installed in the installation position 11; the lens module 300 includes a plastic optical fiber lens 2, wherein an input end 221 of a lens body 22 in the plastic optical fiber lens 2 is exposed in the opposite slot 12, and an output end 222 of the lens body 22 is exposed at the lower end of the insulating base 1; the insulating base 1 is mounted on the PCB 4, and the output end 222 of the lens 22 is abutted with the optical fiber chip 41 mounted on the PCB 4. That is, the POF female connector 100 of the present utility model does not have the optical fiber chip 41, and does not need to provide an additional structure for fixing the optical fiber chip, and has a relatively simple structure, and only the lens body 22 of the plastic optical fiber lens 2 is abutted with the optical fiber chip 41, and transmits the optical signal to the optical fiber chip 41, and finally the optical fiber chip 41 receives the optical signal, and the POF female connector 100 of the present utility model is particularly suitable for the scenario that the optical fiber chip is welded and fixed on the PCB, and only the optical signal is required to be transmitted.

The lens module 300 further comprises a bracket 3, and the plastic optical fiber lens 2 is fixed in the bracket 3; the outer side of the support 3 is provided with a back-off 31, the inner wall of the mounting position 11 is provided with a buckling position hole 111, the back-off 31 is clamped into the buckling position hole 111 and can move up and down relative to the buckling position hole 111, a metal elastic sheet 32 is further arranged between the support 3 and the mounting position 11, and the metal elastic sheet 32 elastically supports the support 3 relative to the insulating seat 1, so that the support 3 is fixed in the mounting position 11 in an elastically floatable manner. That is, the bracket 3 and the plastic optical fiber lens 2 fixed on the bracket 3 can elastically float relative to the insulating base 1, so that in the practical use process, after the POF female base connector 100 is fixedly installed on the PCB 4, elastic contact is formed between the plastic optical fiber lens 2 and the optical fiber chip 41 on the PCB 4, a gap between the plastic optical fiber lens 2 and the optical fiber chip 41 can be avoided, the optical signal transmission quality of the plastic optical fiber lens 2 can be ensured, and the damage to the plastic optical fiber lens or the optical fiber chip caused by rigid contact can not occur, thereby ensuring the service life and quality of the product.

The concrete assembly structure of the bracket 3 and the plastic optical fiber lens 2 is as follows:

The lower end of the bracket 3 is provided with a mounting groove 33, the upper end of the bracket 3 is provided with a butt joint window 34 penetrating through the mounting groove 33, the plastic optical fiber lens 2 is mounted in the mounting groove 33, the input end 221 of the plastic optical fiber lens 2 is exposed in the butt joint window 34 and exposed in the butt joint groove 12, and the output end 222 of the plastic optical fiber lens 2 is exposed out of plane. Wherein, the mounting groove 33 is further provided with a non-circular positioning buckle 331; the plastic optical fiber lens 2 is provided with a second through positioning hole 201, and the positioning buckle 331 passes through the second positioning hole 201 to be buckled and positioned with the plastic optical fiber lens 2, so that the plastic optical fiber lens 2 is ensured to be stably installed in the installation groove 33. In order to further improve the stability of the assembly structure, a plurality of pressing protrusions 332 are formed in the mounting groove 33, and the pressing protrusions 332 are abutted against the periphery of the plastic optical fiber lens 2 to limit the plastic optical fiber lens 2, so that the purpose of improving the stability of the assembly structure is achieved.

The metal elastic sheet 32 is embedded and installed in a limit groove 35 arranged at the upper end of the support 3, a plurality of elastic arms 321 protruding upwards are formed on the metal elastic sheet 32, and the elastic arms 321 are contacted with the bottom surface of the installation position 11, so that gaps between the support 3 and the installation position 11 can be eliminated, and meanwhile, the support 3 can be stably elastically supported, so that the support 3 can elastically float relative to the insulation seat 1.

The plastic optical fiber lens 2 comprises a base 21 and the lens body 22 integrally fixed on the base 21, wherein the lens body 22 is provided with an input end 221 and an output end 222, and the input end 221 and the output end 222 are correspondingly distributed.

The lower end surface of the bracket 3 is further provided with a yielding groove 36 for accommodating the optical fiber chip 41, and the output end 222 of the plastic optical fiber lens 2 is exposed in the yielding groove 36, so that the effect of shading light is achieved, and the transmission performance of optical signals can be improved.

The lower terminal surface shaping of insulating seat 1 has a plurality of location posts 13, and location post 13 is used for inlaying fixedly with the PCB board, wherein, location post 13 makes location post 13 divide into first reference column 131 and second reference column 132 along its bottom surface upwardly open slot 130, and this second reference column 132 lower extreme periphery still shaping has the knot portion 133 that stretches outwards to this not only realizes can inlay fixedly function with the PCB board, can also prevent that this insulating seat 1 from accidentally breaking away from the PCB board simultaneously.

The four corners of the insulating seat 1 are respectively provided with a guide groove 14 penetrating through the mounting position 11; the four corners of the bracket 3 are provided with guide blocks 37, and the guide blocks 37 are embedded into the guide grooves 14, so that the bracket 3 is stably assembled in the mounting position 11 and can play a guide role.

In summary, the POF female connector 100 of the present utility model does not have the optical fiber chip 41, and does not need to provide an additional structure to fix the optical fiber chip, and has a relatively simple structure, and only the lens body 22 of the plastic optical fiber lens 2 is abutted with the optical fiber chip 41, and transmits the optical signal to the optical fiber chip 41, and finally the optical fiber chip 41 receives the optical signal, and the POF female connector 100 of the present utility model is particularly suitable for the scenario that the optical fiber chip is welded and fixed on the PCB, and only the optical signal is required to be transmitted.

Referring to fig. 10-16, the POF male connector 200 includes an insulator 5, two plastic core barrels 6 penetrating through the insulator 5, and an optical fiber wire 7 fixedly penetrating through the plastic core barrels 6.

The front part of the insulator 5 is provided with a pair of inserting convex parts 51, the front end of the plastic core barrel 6 is exposed at the front end surfaces of the pair of inserting convex parts 51, the insulator 5 is provided with a spring arm 52 in a molding way, and the spring arm 52 is provided with a buckle body 521; the rear end of the insulator 5 is also provided with a secondary buckle seat 8 which can slide in a front-back push-pull manner and is used for jacking up the spring arm 52 so as to realize the support of the spring arm 52. When the POF male connector 200 is in use, the POF male connector 200 and the POF female connector 100 are inserted into each other, the spring arm 52 and the insertion protrusion 51 of the POF male connector 200 are inserted into the insertion slot 12 of the POF female connector 100, and the fastening body 521 is fastened and fixed with the fastening hole 120 of the POF female connector 100, so that the POF male connector 200 and the POF female connector 100 form a stable connection, and the plastic core barrel 6 corresponds to the plastic optical fiber lens in the POF female connector 100, so as to realize optical signal transmission. In addition, the secondary buckling seat 8 additionally arranged on the insulator 5 of the POF male connector 200 can slide forward and backward in a pushing manner and is used for jacking up the elastic arm 52 upwards to support the elastic arm 52, so that the elastic arm 52 is locked secondarily, the elastic arm 52 can be effectively prevented from being pressed down, the locking purpose is achieved, the phenomenon that the buckling body 521 of the elastic arm 52 is separated from the buckling hole 120 of the POF female connector 100 to unlock accidentally can be avoided, the POF male connector 200 and the POF female connector 100 form stable connection, accidental separation is avoided, and the quality of optical signal transmission of the utility model can be further ensured.

Specifically, the front end of the secondary buckle seat 8 is provided with a secondary buckle 81, the top surface of the front end of the secondary buckle 81 is provided with an inclined surface 811, and the inclined surface 811 plays a role in guiding; the secondary buckle 81 is arranged in the guide groove 522 on the lower end surface of the spring arm 52, when the secondary buckle seat 8 is pushed forward, the inclined surface 811 of the secondary buckle 81 contacts with the lower end surface of the spring arm 52, and the spring arm 52 is jacked up to support the spring arm 52, so that the spring arm 52 is locked for the second time, the spring arm 52 can be effectively prevented from being pressed down, the purpose of locking is achieved, namely, the phenomenon that the buckle body 521 of the spring arm 52 is separated from the buckle hole 120 of the POF female seat connector 100 to cause unexpected unlocking can be avoided, the POF male connector 200 and the POF female seat connector 100 form stable connection, accidental separation is avoided, and the quality of optical signal transmission of the utility model can be further ensured.

A groove 60 is formed between the front end of the plastic core barrel 6 and the front end face of the opposite insertion convex part 51, which prevents the fiber core 71 in the plastic core barrel 6 from being exposed and damaged, and plays a good role in protection.

The insulator 5 rear end is provided with the sliding tray 53 of intercommunication guide slot 522, and this sliding tray 53 both sides inner wall all is provided with rail groove 531, the second grade is detained the seat 8 both sides and is provided with the protruding rail 82 with rail groove 531 adaptation, and this second grade is detained seat 8 and is installed in sliding tray 53 with slidable mode, wherein, this protruding rail 82 imbeds in rail groove 531 to can realize stable sliding motion, the anti-skidding pushing part 85 on this second grade is detained seat 8 exposes outside insulator 5 up end, so that the operation presses this anti-skidding pushing part 85, in order to realize this second grade and detain seat 8 and the unblock of arm 52, the operation is got up more conveniently.

Travel grooves 532 are also formed on two sides of the bottom surface of the sliding groove 53; the two sides of the lower end of the secondary buckling seat 8 are also provided with inclined surface sliding blocks 83 which are matched with the travel grooves 532, the inclined surface sliding blocks 83 are arranged in the travel grooves 532, so that the inclined surface sliding blocks 83 can only slide in the travel grooves 532, the forward and backward sliding travel of the secondary buckling seat 8 is limited, the stopping effect is achieved, the secondary buckling seat 8 can be prevented from accidentally falling out of the sliding grooves 53, and the quality of products is ensured.

An annular groove 511 and a rotation stopping groove 512 which is positioned beside and communicated with the annular groove 511 are arranged on the outer side surface of the front end of the opposite insertion convex part 51; the sealing ring 54 is sleeved in the annular groove 511, and the rotation stopping convex portion 541 at the outer side of the sealing ring 54 is embedded in the rotation stopping groove 512, so that the sealing ring 54 is prevented from rotating, the stability of an assembly structure is ensured, and a better sealing effect can be achieved. The front ends of the pair of inserting convex parts 51 are in sealing contact with the bottoms of the pair of inserting grooves 12 through the sealing rings 54, so that an effective waterproof effect is achieved.

The rear end of the plastic core barrel 6 is provided with an O-shaped ring 61 and a positioning ring groove 63 positioned at the rear end of the O-shaped ring 61, and the plastic core barrel is assembled with the insulator 5 in a sealing way through the O-shaped ring 61, so that the waterproof effect is realized; the insulator 5 is provided with a core hole 55 penetrating through the front end face along the rear end face of the insulator, the lower end face of the insulator 5 is also provided with a semi-square fastening groove 56 penetrating through the core hole 55, a limiting seat 58 is also fastened and fixed in the fastening groove 56 of the lower end face of the insulator 5, a limiting convex part 581 formed in the limiting seat 58 is embedded into the positioning ring groove 63 to prevent the plastic core barrel 6 from retreating, the plastic core barrel 6 is further positioned in the insulator 5 stably, the plastic core barrel 6 can be protected better, and the plastic core barrel 6 is prevented from being damaged accidentally.

The optical fiber wire 7 is further sleeved with a sealing ring 72, and the sealing ring 72 is further embedded into the core hole 55 and forms sealing contact.

Elastic buckling bodies 582 are formed on two sides of the limiting seat 58, buckling groove bodies 561 are formed on two sides of the buckling groove 56, and the elastic buckling bodies 582 are buckled and fixed with the buckling groove bodies 561, so that stability of an assembly structure is guaranteed.

The spring arm 52 is J-shaped, the arc-shaped end 523 of the spring arm 52 is integrally connected with the insulator 5, and the arc-shaped end 523 is further provided with strip-shaped holes 524 distributed along the length direction thereof for enhancing the elastic deformation capability thereof.

In summary, in the present utility model, when in use, the POF male connector 200 and the POF female connector 100 are inserted into each other, the spring arm 52 and the insertion protrusion 51 of the POF male connector 200 are inserted into the insertion slot 12 of the POF female connector 100, and the fastening body 521 is fastened and fixed with the fastening hole 120 of the POF female connector 100, so that the POF male connector 200 and the POF female connector 100 form a stable connection, and the plastic core barrel 6 corresponds to the plastic optical fiber lens in the POF female connector 100, so as to realize optical signal transmission. In addition, a secondary buckle 81 is formed at the front end of the secondary buckle seat 8, and an inclined plane 811 is formed on the top surface of the front end of the secondary buckle 81; the secondary buckle 81 is arranged in the guide groove 522 on the lower end surface of the spring arm 52, when the secondary buckle seat 8 is pushed forward, the inclined surface 811 of the secondary buckle 81 contacts with the lower end surface of the spring arm 52, and the spring arm 52 is jacked up to support the spring arm 52, so that the spring arm 52 is locked for the second time, the spring arm 52 can be effectively prevented from being pressed down, the purpose of locking is achieved, namely, the phenomenon that the buckle body 521 of the spring arm 52 is separated from the buckle hole 120 of the POF female seat connector 100 to cause unexpected unlocking can be avoided, the POF male connector 200 and the POF female seat connector 100 form stable connection, accidental separation is avoided, and the quality of optical signal transmission of the utility model can be further ensured.

It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Claims (10)

1. A POF connector comprising a POF female connector (100) and a POF male connector (200) that is mated with the POF female connector (100), characterized in that:

The POF female connector (100) comprises: an insulating base (1) having an opposite insertion groove (12) for opposite insertion with the POF male connector and a mounting position (11) communicating with the opposite insertion groove (12); a lens module (300) mounted in the mounting position (11); the lens module (300) comprises a plastic optical fiber lens (2), wherein an input end (221) of a lens body (22) in the plastic optical fiber lens (2) is exposed in the opposite inserting groove (12), and an output end (222) of the lens body (22) is exposed at the lower end of the insulating seat (1); the insulation seat (1) is arranged on the PCB (4), and the output end (222) of the lens body (22) is in butt joint with the optical fiber chip (41) arranged on the PCB (4);

The POF male connector (200) comprises an insulator (5), a plastic core barrel (6) penetrating and installed in the insulator (5) and an optical fiber wire (7) fixedly penetrating and installed in the plastic core barrel (6), wherein the front part of the insulator (5) is provided with a butt-inserting convex part (51), the front end of the plastic core barrel (6) is exposed at the front end face of the butt-inserting convex part (51), an elastic arm (52) for butt-inserting with a butt-inserting groove (12) is formed on the insulator (5), and a buckle body (521) is arranged on the elastic arm (52); the rear end of the insulator (5) is also provided with a secondary buckle seat (8) which can slide forwards and backwards in a pushing way and is used for jacking up the spring arm (52) so as to realize the formation of support for the spring arm (52);

The opposite inserting convex part (51) and the spring arm (52) of the POF male connector (200) are inserted into the opposite inserting groove (12), the optical fiber wire (7) corresponds to the input end (221) of the lens body (22), the buckling body (521) on the spring arm (52) is buckled and fixed with the buckling hole (120) arranged on the inner wall of the opposite inserting groove (12), the secondary buckling seat (8) slides towards the direction of the spring arm (52), and the spring arm (52) is jacked upwards to form a support for the spring arm (52).

2. The POF connector according to claim 1, wherein: the lens module (300) further comprises a bracket (3), and the plastic optical fiber lens (2) is fixed in the bracket (3); wherein, support (3) outside is provided with back-off (31), installation position (11) inner wall is provided with detains position hole (111), and this back-off (31) card is gone into in this detaining position hole (111) and can reciprocate relative detaining position hole (111), and still be provided with metal shrapnel (32) between this support (3) and the installation position (11), this metal shrapnel (32) are relative insulating seat (1) elastic support (3), make support (3) be fixed in this installation position (11) with the mode that can elastically float.

3. The POF connector according to claim 2, wherein: the lower end of the bracket (3) is provided with a mounting groove (33), the upper end of the bracket (3) is provided with a butt joint window (34) penetrating through the mounting groove (33), the plastic optical fiber lens (2) is mounted in the mounting groove (33), the input end (221) of the plastic optical fiber lens (2) is exposed in the butt joint window (34), and the output end (222) of the plastic optical fiber lens (2) is exposed out of the plane; the metal elastic sheet (32) is embedded and installed in a limit groove (35) arranged at the upper end of the support (3), a plurality of elastic arms (321) protruding upwards are formed on the metal elastic sheet (32), and the elastic arms (321) are contacted with the bottom surface of the installation position (11).

4. A POF connector according to claim 3, wherein: a non-circular positioning buckle (331) is further arranged in the mounting groove (33); the plastic optical fiber lens (2) is provided with a through second positioning hole (201), and the positioning buckle (331) passes through the second positioning hole (201) to be buckled and positioned with the plastic optical fiber lens (2); the mounting groove (33) is internally provided with a plurality of pressing convex parts (332), and the pressing convex parts (332) are abutted against the periphery of the plastic optical fiber lens (2) so as to limit the plastic optical fiber lens (2).

5. The POF connector according to any one of claims 2-4, wherein: the plastic optical fiber lens (2) comprises a base (21) and a lens body (22) integrally fixed on the base (21), wherein the lens body (22) is provided with an input end (221) and an output end (222), and the input end (221) and the output end (222) are correspondingly distributed; the lower end face of the bracket (3) is also provided with a yielding groove (36) for accommodating the optical fiber chip (41), and the output end (222) of the plastic optical fiber lens (2) is exposed in the yielding groove (36).

6. The POF connector according to any one of claims 2-4, wherein: a plurality of positioning convex columns (13) are formed on the lower end face of the insulating seat (1); four corners of the insulating seat (1) are respectively provided with a guide groove (14) penetrating through the mounting position (11); guide blocks (37) are arranged at four corners of the bracket (3), and the guide blocks (37) are embedded into the guide grooves (14); the positioning convex column (13) is divided into a first positioning column (131) and a second positioning column (132) along a slit (130) with an upward opening on the bottom surface, and a buckling part (133) protruding outwards is formed on the periphery of the lower end of the second positioning column (132).

7. The POF connector according to any one of claims 1-4, wherein: the front end of the secondary buckle seat (8) is provided with a secondary buckle (81), and the top surface of the front end of the secondary buckle (81) is provided with an inclined surface (811); the secondary buckle (81) is arranged in a guide groove (522) on the lower end surface of the spring arm (52), when the secondary buckle seat (8) is pushed forward, an inclined surface (811) of the secondary buckle (81) is contacted with the lower end surface of the spring arm (52), and the spring arm (52) is jacked upwards to form a support for the spring arm (52).

8. The POF connector according to claim 7, wherein: the rear end of the insulator (5) is provided with a sliding groove (53), the inner walls of the two sides of the sliding groove (53) are provided with rail grooves (531), the two sides of the secondary buckling seat (8) are provided with convex rails (82) matched with the rail grooves (531), the secondary buckling seat (8) is installed in the sliding groove (53) in a sliding manner, the convex rails (82) are embedded into the rail grooves (531), and an anti-slip pushing part (85) on the secondary buckling seat (8) is exposed out of the upper end face of the insulator (5); travel grooves (532) are also formed in the two sides of the bottom surface of the sliding groove (53); the two sides of the lower end of the secondary buckle seat (8) are also provided with inclined slide blocks (83) which are matched with the travel groove (532), and the inclined slide blocks (83) are arranged in the travel groove (532).

9. The POF connector according to any one of claims 1-4, wherein: an annular groove (511) and a rotation stopping groove (512) which is positioned beside and communicated with the annular groove (511) are formed in the outer side surface of the front end of the opposite insertion convex part (51); the sealing ring (54) is sleeved in the annular groove (511), the rotation stopping convex part (541) at the outer side of the sealing ring (54) is embedded into the rotation stopping groove (512), and the front end of the opposite inserting convex part (51) is in sealing contact with the bottom of the opposite inserting groove (12) through the sealing ring (54).

10. The POF connector according to claim 9, wherein: the rear end of the plastic core barrel (6) is provided with an O-shaped ring (61) and a positioning ring groove (63) positioned at the rear end of the O-shaped ring (61), and the plastic core barrel is assembled with the insulator (5) in a sealing way through the O-shaped ring (61); the insulator (5) is provided with a core hole (55) penetrating through the front end face forwards along the rear end face of the insulator, the lower end face of the insulator (5) is also provided with a semi-square fastening groove (56) penetrating through the core hole (55), a limit seat (58) is also fastened and fixed in the fastening groove (56) of the lower end face of the insulator (5), and a limit convex part (581) formed in the limit seat (58) is embedded in the positioning ring groove (63) to prevent the plastic core barrel (6) from retreating; elastic buckling bodies (582) are formed on two sides of the limiting seat (58), buckling groove bodies (561) are formed on two sides of the buckling groove (56), and the elastic buckling bodies (582) are buckled and fixed with the buckling groove bodies (561).