CN113189711B - Small MPO type optical fiber connector - Google Patents
Small MPO type optical fiber connector Download PDFInfo
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- CN113189711B CN113189711B CN202110422244.9A CN202110422244A CN113189711B CN 113189711 B CN113189711 B CN 113189711B CN 202110422244 A CN202110422244 A CN 202110422244A CN 113189711 B CN113189711 B CN 113189711B
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- seat
- connector
- optical fiber
- base
- mpo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to the technical field of communication equipment, in particular to a small MPO type optical fiber connector, which comprises an optical component, a guide pin, a fixed seat, an elastic component and a card seat, wherein the guide pin is arranged on the optical component; the fixed seat is connected with the guide pin, and the optical component is provided with a guide hole matched with the guide pin; the fixing seat is provided with a sliding block, the clamping seat is provided with a sliding rail which is used for being coupled with the sliding block, the elastic part is contained in the sliding rail, and when the fixing seat and the clamping seat move relatively, the end face of the sliding block abuts against the elastic part. According to the invention, the spring is arranged in the clamping seat, when the clamping seat and the fixed seat move relatively, the end surface of the sliding block of the fixed seat is pressed against the spring, and at the moment, the sliding block only generates axial acting force on the spring without radial acting force, so that the spring is not blocked and the like.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to a small MPO type optical fiber connector.
Background
MPO-type fiber optic connectors are assembled connectors of MT assemblies, the MT ends of which are used for optical mating, and the pigtail cable sections can be potted and soldered to other optical devices in the module. Process encapsulation through module interior
After the procedure, the MT module is led out of the module through a tail cable. At present, the demand for miniaturization of MPO type optical fiber connectors is higher and higher, an MT assembly led out from a module needs to be installed later, meanwhile, the MT assembly needs to have elastic movement within a certain range in the butt joint process, the effective contact of the butt joint end face of the MT is guaranteed, and good optical performance is achieved.
In the prior art, the elastic movement of the MT component part in the docking process is a tiny steel needle (i.e., a guide pin), the elastic movement depends on the spring part in the MT component, and the spring in the prior art generates a radial acting force when moving, so that the spring is skewed or asymmetric in the movement process, and the spring force is unstable or the docking is blocked.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
Disclosure of Invention
The technical problem solved by the invention is as follows:
the elastic movement of the MT component part in the butt joint process is a tiny steel needle (namely a guide pin), the elastic movement depends on a spring part in the MT component, and in the prior art, radial acting force can be generated when the spring moves, so that the spring is skewed or asymmetric in the movement process, and the situation that the spring force is unstable or the butt joint is blocked can be caused.
The invention achieves the above purpose through the following technical scheme:
the invention provides a small MPO type optical fiber connector, which comprises an optical component 1, a guide pin 2, a fixed seat 3, an elastic component 4 and a card seat 5;
the fixed seat 3 is connected with the guide pin 2, and the optical component 1 is provided with a guide hole 11 matched with the guide pin 2;
the fixed seat 3 is provided with a sliding block 31, the clamping seat 5 is provided with a sliding rail 51 for coupling with the sliding block 31, wherein the elastic component 4 is accommodated in the sliding rail 51, and when the fixed seat 3 and the clamping seat 5 move relatively, the end surface of the sliding block 31 presses against the elastic component 4.
Preferably, the slider 31 is provided with an arrow-shaped protrusion 311, the sidewall of the card socket 5 is provided with a notch 52 for accommodating the protrusion 311, and when the fixing base 3 and the card socket 5 move relatively, the protrusion 311 slides in the notch 52.
Preferably, the fixing seat 3 is connected to the guide pin 2, specifically:
the guide pin 2 is provided with a groove 21, and the fixed seat 3 is provided with a notch 32 matched with the groove 21.
Preferably, the fixing base 3 is provided with a first through slot 33 for passing a cable;
the clamping seat 5 is provided with a second through groove 53 for passing a cable, wherein the second through groove 53 coincides with the center line of the first through groove 33 along the length direction.
Preferably, the elastic member 4 is embodied as a spring.
Preferably, the method further comprises the following steps: the backplane connector 6 and the daughter board connector 7 form a plug structure;
the daughter board connector 7 includes a header base 74 and a header inner housing 73, and the header inner housing 73 is used for being sleeved outside the header base 74;
the backplane connector 6 comprises a seat base 61, a protective cover 63 and a seat dustproof door 62, wherein the protective cover 63 is sleeved outside the seat base 61, and a through hole 611 is formed in a side wall of an insertion interface of the seat base 61;
the seat dust-proof door 62 comprises a seat dust-proof plate 621, a seat rotating shaft 622 and a knob 623, wherein the seat rotating shaft 622 is connected with the seat dust-proof plate 621, the seat rotating shaft 622 is used for penetrating through the through hole 611 to connect the seat dust-proof plate 621 with the seat base 61, and one end of the seat rotating shaft 622 penetrating through the through hole 611 and extending to the outer side of the seat base 61 is connected with the knob 623;
the protective cover 63 is provided with an opening 631 for accommodating the knob 623, when the backplane connector 6 is plugged with the daughter board connector 7, the seat rotating shaft 622 drives the knob 623 to rotate, and the protective cover 63 is driven by the knob 623 to move, so that the protective cover 63 is pressed against the inner side of the header inner shell 73;
the fiber optic connector is received within either the head base 74 or the socket base 61.
Preferably, the outer surface of the socket 5 is provided with a locking key 54 for engaging with the backplane connector 6 or the daughter board connector 7 in a limiting manner, so as to fix the optical fiber connector in the backplane connector 6 or the daughter board connector 7.
Preferably, the seat dust guard 621 is provided with a first wedge-shaped protrusion 624;
a second wedge-shaped protrusion 741 is disposed outside the head base 74, and the second wedge-shaped protrusion 741 is configured to push the seat dust guard 621 provided with the first wedge-shaped protrusion 624 to rotate around the seat rotation shaft 622, so that the rotation of the knob 623 drives the protective cover 63 to move.
Preferably, the backplane connector 6 further comprises a sealing ring 65, wherein the sealing ring 65 is disposed on an end surface of the protective cover 63 at the insertion interface.
Preferably, the fixing base 3 is made of a material having elasticity.
The invention has the beneficial effects that:
according to the invention, the spring is arranged in the clamping seat, when the clamping seat and the fixed seat move relatively, the end face of the sliding block of the fixed seat is pressed against the spring, and the sliding block only generates axial acting force on the spring at the moment, but does not generate radial acting force, so that the situation that the spring is blocked and the like is avoided, the spring and the sliding block can be ensured to move in the sliding rail of the clamping seat along the axial direction, the invention can effectively avoid the situation that the spring force is unstable and the butt joint is blocked, is convenient to manufacture and produce, and ensures the product performance and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded view of a miniature MPO-type optical fiber connector according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a small MPO-type optical fiber connector according to an embodiment of the present invention;
fig. 4 is an assembly view of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a daughterboard connector of a small MPO-type optical fiber connector according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a backplane connector of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a backplane connector of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a header inner housing of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a header base of a small MPO type optical fiber connector according to an embodiment of the present invention;
fig. 10 is a schematic structural view illustrating a daughterboard connector of a small MPO type optical fiber connector according to an embodiment of the present invention when the daughterboard connector is plugged with a backplane connector, the daughterboard connector does not push away a dust-proof door;
fig. 11 is a schematic structural view of a small MPO type optical fiber connector according to an embodiment of the present invention, when a daughterboard connector is plugged into a backplane connector, the daughterboard connector pushes a dust-proof door away;
fig. 12 is a schematic structural diagram of a small MPO type optical fiber connector according to an embodiment of the present invention when a daughterboard connector and a backplane connector are completely plugged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are for convenience in describing the present invention only and do not require that the present invention be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a small MPO type optical fiber connector, which comprises an optical component 1, a guide pin 2, a fixed seat 3, an elastic component 4 and a card seat 5, wherein the optical component 1 is provided with a plurality of optical fibers;
the fixed seat 3 is connected with the guide pin 2, and the optical component 1 is provided with a guide hole 11 matched with the guide pin 2;
the fixed seat 3 is provided with a sliding block 31, the clamping seat 5 is provided with a sliding rail 51 for coupling with the sliding block 31, wherein the elastic component 4 is accommodated in the sliding rail 51, and when the fixed seat 3 and the clamping seat 5 move relatively, the end surface of the sliding block 31 presses against the elastic component 4. The elastic member 4 may be a spring.
As shown in fig. 4, this embodiment provides a realization method for optical docking and contacting of a male optical fiber connector and a female optical fiber connector through an adapter, and first, a male optical fiber connector 8 is accommodated in a female optical fiber connector 7, and a female optical fiber connector 9 is accommodated in a female optical fiber connector 6; and then the daughter board connector 7 containing the male optical fiber connector 8 is inserted into the backplane connector 6 containing the female optical fiber connector 9, so that the male optical fiber connector 8 and the female optical fiber connector 9 are in optical butt contact.
The optical fiber connector provided in this embodiment may be used as a male optical fiber connector, and may also be used as a female optical fiber connector, and this embodiment is explained as a male optical fiber connector, where the optical fiber connector (the optical fiber connector is used as a male optical fiber connector) sequentially includes an optical component 1, a guide pin 2, a fixing seat 3, an elastic component 4, and a card seat 5 from left to right;
as shown in fig. 3, the fixing base 3 is provided with a notch 32, the notch 32 is disposed at the left end of the fixing base 3, and the shape of the notch 32 includes: circular arc notches, square notches and the like; the guide pin 2 is provided with a groove 21 matched with the notch 32, the groove 21 is arranged at the right end of the guide pin 2, the groove 21 can be a circular groove, a square groove and the like, the guide pin 2 is connected with the fixed seat 3 through the matching of the groove 21 and the notch 32, and the specific shapes of the groove 21 and the notch 32 can be set according to requirements; as shown in fig. 2, the optical assembly 1 is provided with guide holes 11 matched with the guide pins 2, specifically: the guide pins 2 may be cylindrical guide pins and the corresponding guide holes 11 are then circular guide holes.
As shown in fig. 2, the fixed seat 3 is provided with a slide block 31, a left end of the slide block 31 is connected with a right end of the fixed seat 3, the right end of the slide block 31 is used for abutting against the elastic component 4, the card seat 5 is provided with a slide rail 51 coupled with the slide block 31, and the slide rail 51 is arranged at a left end of the card seat 5; the elastic member 4 is placed in the slide rail 51. When the assembled male optical fiber connector 8 and the assembled female optical fiber connector 9 are plugged, the right end surface of the sliding block 31 will press against the elastic component 4 to complete the butt joint between the male optical fiber connector 8 and the female optical fiber connector 9, and in order to enable the sliding block 31 to smoothly complete the coupling with the sliding rail 51, the fixing seat 3 is made of an elastic material, and specifically may be a rubber material.
In order to enable the fixed seat 3 and the card seat 5 in the assembled male optical fiber connector 8 to move relatively, as shown in fig. 3, the slider 31 is provided with an arrow-shaped locking protrusion 311, a side wall of the card seat 5 is provided with a notch 52 for accommodating the locking protrusion 311, and when the fixed seat 3 and the card seat 5 move relatively, the locking protrusion 311 can slide in the notch 52.
In order to fixedly connect the fixed seat 3 and the guide pin 2, the guide pin 2 is provided with a groove 21, and the fixed seat 3 is provided with a notch 32 matched with the groove 21.
As shown in fig. 2, the fixing base 3 is provided with a first through slot 33 for passing a cable; the clamping seat 5 is provided with a second through groove 53 for passing a cable, wherein the second through groove 53 coincides with the center line of the first through groove 33 along the length direction. The invention also includes: the backplane connector 6 and the daughter board connector 7 form a plugging structure; the daughter board connector 7 includes a header base 74 and a header inner housing 73, and the header inner housing 73 is used for being sleeved outside the header base 74;
as shown in fig. 4-5, the daughter board connector 7 includes a header outer shell 71, a header dust-proof door 72, a header inner shell 73, a header base 74 and a locking member 75, assuming that the header base 74 is used for connecting a male optical fiber connector 8 (here, the guide pin 2 in the male optical fiber connector 8 is a movable structure), after the daughter board connector 7 is assembled with the male optical fiber connector 8 and is mounted with a board card by a left screw and a right screw, the locking member 75 is sleeved outside the header base 74, specifically, the locking member 75 is elastically connected with the header base 74 by a spring; the head inner shell 73 is sleeved outside the head base 74 with the locking piece 75 installed, and the specific sleeving manner is that the head inner shell 73 and the head base 74 can be connected in a buckling manner and the like; the head outer shell 71 is sleeved outside the head inner shell 73, and the specific sleeving manner is that the head outer shell 71 and the head inner shell 73 are fixedly installed in a buckling or bonding manner and the like; the side wall of the head inner shell 73 is provided with a circular hole for connecting with the head dustproof door 72, wherein the head dustproof door 72 is a split head dustproof door. As shown in fig. 8, a square protrusion 731 is disposed inside the header inner shell 73, and when the daughter board connector 7 is inserted into the backplane connector 6, the protrusion 731 is configured to press against the sealing ring 65 of the protective cover 63, so as to achieve a sealing effect; when the daughter board connector 7 is pulled out of the backplane connector 6, the square projection 731 pushes the locking member 75 to move away from the backplane connector 6, so that the latch groove 612 and the latch 742 (labeled as wrong in fig. 9) are unlocked to facilitate the pulling out of the daughter board connector 7 from the backplane connector 6.
The backplane connector 6 comprises a seat base 61, a boot 63 and a seat dust-proof door 62, wherein the seat base 61 is assumed to be used for connecting a female optical fiber connector 9 (where a guide pin of the female optical fiber connector 9 cannot move), the boot 63 is assumed to be sleeved outside the seat base 61, and a through hole 611 is formed in a side wall of the seat base 61 at a plugging interface; the seat dust-proof door 62 comprises a seat dust-proof plate 621, a seat rotating shaft 622 and a knob 623, wherein the seat rotating shaft 622 is connected with the seat dust-proof plate 621, the seat rotating shaft 622 is used for penetrating through the through hole 611 to connect the seat dust-proof plate 621 with the seat base 61, and one end of the seat rotating shaft 622 penetrating through the through hole 611 and extending to the outer side of the seat base 61 is connected with the knob 623; the protective cover 63 is provided with an opening 631 for accommodating the knob 623, when the backplane connector 6 is plugged with the daughter board connector 7, the seat rotating shaft 622 drives the knob 623 to rotate, and the protective cover 63 is driven by the knob 623 to move, so that the protective cover 63 is pressed against the inner side of the header inner shell 73; the fiber optic connector is received within either the header base 74 or the socket base 61.
As shown in fig. 6, the backplane connector 6 includes a seat housing 64, a protective cover 63, a seat base 61 and a seat dust-proof door 62, when the backplane connector 6 with the assembled female optical fiber connector 9 is connected to a backplane, the seat base 61 is fixedly connected to the backplane by screws, then the protective cover 63 is sleeved on the outside of the seat base 61, and finally the seat housing 64 is sleeved on the outside of the seat base 61 with the protective cover 63 installed, and the seat housing 64 is fixedly connected to the backplane by screws; as shown in fig. 7, the side wall of the socket of the seat base 61 is provided with four through holes 611, and the seat dust-proof door 62 is a split seat dust-proof door, that is, the seat dust-proof door 62 includes: the seat dust-proof door comprises two seat dust-proof plates 621 which are arranged up and down symmetrically, and seat rotating shafts 622 which are respectively fixedly connected with the two seat dust-proof doors 62, wherein when the seat dust-proof doors 62 are installed on the seat base 61, the seat rotating shaft 622 corresponding to the seat dust-proof plate 621 above passes through two through holes 611 above the seat base 61, one end of the seat rotating shaft 622 extending out of the seat base 61 is connected with a knob 623, the knob 623 can be an oval knob, and the end surface of the seat rotating shaft 622 corresponding to the seat dust-proof plate 621 above is connected with the position, close to the lower center, of the oval knob; the seat rotating shaft 622 corresponding to the lower seat dust-proof plate 621 penetrates through the two through holes 611 below the seat base 61, one end of the seat rotating shaft 622 extending out of the seat base 61 is connected to the knob 623, the knob 623 may be an elliptical knob, wherein the end surface of the seat rotating shaft 622 corresponding to the lower seat dust-proof plate 621 is connected to the position above the center of the elliptical knob, and this embodiment is merely an example, and is not intended to limit the present invention.
The shield 63 is provided with four openings 631 receiving the knob 623, wherein the openings 631 may be square openings 631.
When the backplane connector 6 with the female optical fiber connector 9 mounted thereon is plugged with the daughter board connector 7 with the male optical fiber connector 8 mounted thereon, the seat rotating shaft 622 drives the knob 623 to rotate, and the protective cover 63 is driven by the knob 623 to move, so that the protective cover 63 abuts against the inner side of the inner header shell 73.
This embodiment provides a grafting process after female first fiber connector 9 and public first fiber connector 8 are installed respectively to backplane connector 6 and daughterboard connector 7, specifically is:
the initial state when the daughter board connector is not in contact with the backplane connector is shown in fig. 10;
as shown in fig. 11, during the pushing process of the daughter board connector 7 toward the backplane connector 6, the socket push rods 613 on both sides of the socket base 61 first contact the header dust-proof doors 72, and the socket push rods 613 push the header dust-proof doors 72 along with the pushing process of the daughter board connector 7; the daughter board connector 7 continues to advance toward the backplane connector 6, the head push rod 743 (refer to fig. 9) of the head base 74 contacts the seat dust-proof door 62, and the head push rod 743 pushes away the seat dust-proof plates 621, which are arranged up and down and correspond to the split seat dust-proof door 62, in the advancing process of the daughter board connector 7, as shown in the state of the left side of the arrow in fig. 11, until the seat dust-proof plates 621 arranged up and down rotate 90 degrees respectively (i.e., the seat dust-proof plate arranged above rotates 90 degrees clockwise, and the seat dust-proof plate arranged below rotates 90 degrees counterclockwise), and the seat dust-proof plates 621 are placed between the seat base 61 and the head base 74 (i.e., placed inside the seat base 61 and outside the head base 74); when the seat dust-proof plates 621 arranged up and down rotate 90 degrees respectively, the seat rotating shafts 622 corresponding to the seat dust-proof plates 621 arranged up and down are driven to rotate clockwise and counterclockwise respectively, as shown in the state of the right arrow in fig. 11, so as to drive the seat rotating shafts 622 arranged up and down to rotate 90 degrees clockwise and counterclockwise respectively corresponding to the knobs 623, and at the moment, the side walls of the knobs 623 corresponding to the seat rotating shafts 622 arranged up and down can be pressed against the side walls close to the insertion ports of the openings 631 of the protective covers 63, so that the protective covers 63 move towards the direction of the daughter board connector 7, and the sealing rings 65 of the protective covers 63 press the quadrate protrusions 731 arranged inside the header inner shell 73. When the upper and lower socket dust-proof boards 621 rotate 90 degrees upward and downward respectively, the female optical fiber connector 9 and the male optical fiber connector 8 are not yet in optical abutting contact (i.e. the daughterboard connector 7 and the backplane connector 6 are not yet inserted into each other), as shown in fig. 12, at this time, the daughterboard connector 7 continues to be pushed toward the backplane connector 6, the second wedge-shaped projection 741 arranged outside the header base 74 pushes the first wedge-shaped projection 624, as shown in the state of arrow left in fig. 12, the upper and lower socket dust-proof boards 621 continue to rotate upward and downward on the basis of 90 degrees upward and downward respectively, as shown in the state of arrow right in fig. 12, so as to drive the upper and lower socket rotating shafts 622 and the corresponding knobs 623 to clockwise and counterclockwise move further toward the clockwise and counterclockwise directions, at this time, the side walls of the upper and lower socket rotating shafts 622 and the corresponding sockets 63 further press against the side walls of the sockets 63 of the corresponding sockets 63, so that the sockets 63 move further towards the socket dust-proof board connectors 7 (i.e. when the socket dust-proof boards 623 and the daughterboard connector 7 push the socket connectors 73 and the socket connectors 6 to press against the sockets 65) to ensure that the sockets 63 and the sockets 7 are pressed tightly against the sockets 73, the sockets 7 and the sockets 73, so as the socket connectors 6 are pushed into the socket connectors 7 and the socket connectors 6 are pushed tightly, the sockets 73, the socket connectors are pushed tightly, the socket connectors are pushed tightly, so as the socket connectors 7, the socket connectors are pushed into the socket connectors 7 and the socket connectors are pushed tightly, the socket connectors are pushed into the socket connectors, and dust does not enter the end surfaces of the female optical fiber connector 9 and the male optical fiber connector 8 in the use process of the daughter board connector 7 and the backplane connector 6 after the plugging is finished.
In order to ensure that the daughter board connector 7 is plugged into the backplane connector 6, the knob 623 pushes the protecting cover 63 to move toward the daughter board connector 7, so that the sealing ring 65 of the protecting cover 63 is tightly pressed against the square protrusion 731 inside the header housing 73; the seat dust guard 621 is provided with a first wedge-shaped protrusion 624; the cross section of the first wedge-shaped protrusion 624 is a right triangle, and the length of the hypotenuse of the cross section of the first wedge-shaped protrusion 624 is smaller than the length of the cross section of the seat dust-proof plate 621, so as to ensure that the seat dust-proof door 62 can be opened by the pushing action of the head push rod 743. The shape of the first wedge-shaped protrusion 624 can be set according to the requirement, and it is within the scope of the present invention that the first wedge-shaped protrusion 741 can drive the knob 623 to rotate under the pushing action of the second wedge-shaped protrusion 741 so as to push the protective cover 63 to move further toward the daughter board connector 7.
In order to mount the optical fiber connector in the backplane connector 6 or the daughter board connector 7, the outer surface of the optical fiber connector holder 5 is provided with a locking key 54 for a limit fit with the backplane connector 6 or the daughter board connector 7, so as to fix the optical fiber connector in the backplane connector 6 or the daughter board connector 7.
The seat dust guard 621 is provided with a first wedge-shaped protrusion 624; a second wedge-shaped protrusion 741 is disposed outside the head base 74, and the second wedge-shaped protrusion 741 is configured to push the seat dust guard 621 provided with the first wedge-shaped protrusion 624 to rotate around the seat rotation shaft 622, so that the rotation of the knob 623 drives the protective cover 63 to move.
A second wedge-shaped protrusion 741 is disposed outside the head base 74, wherein the second wedge-shaped protrusion 741 has a cross section of a right triangle or other shapes, and the shape is within the protection scope of the present invention as long as the first wedge-shaped protrusion 624 is pushed to rotate the knob 623, thereby pushing the protective cover 63 to move further toward the daughter board connector 7. The second wedge-shaped projection 741 is disposed at a position near the insertion interface at the front end of the locking member 75, and the second wedge-shaped projection 741 is engaged with the first wedge-shaped projection 624, so that in the process of pushing the daughter board connector 7 toward the backplane connector 6, the seat dust-proof plates 621 disposed on the upper and lower sides respectively rotate upward and downward by 90 degrees, so as to drive the seat rotation shafts 622 disposed on the upper and lower sides to rotate 90 degrees clockwise and counterclockwise, and then the side walls of the knobs 623 corresponding to the seat rotation shafts 622 disposed on the upper and lower sides further press the side walls of the openings 631 of the shielding covers 63 near the insertion interface, so that the shielding covers 63 further move toward the daughter board connector 7 (i.e., when the daughter board connector 7 is pushed toward the backplane connector 6, the knobs 623 push the shielding covers 63 further toward the daughter board connector 7), and thereby the sealing rings 65 of the shielding covers 63 tightly press the square projections 731 disposed inside the header inner housing 73.
In order to achieve a better sealing effect between the daughter board connector 7 and the backplane connector 6, so that no dust enters from the contact end surfaces of the male optical fiber connector 8 and the female optical fiber connector 9, the backplane connector 6 further includes a sealing ring 65, and the sealing ring 65 is disposed on the end surface at the insertion interface of the protective cover 63. When the daughter board connector 7 and the backplane connector 6 are plugged, the sealing ring 65 tightly presses against the square protrusion 731 of the header inner housing 73 to achieve a sealing effect.
In order to make the backplane connector 6 in a non-use state, the receptacle dust door 62 is in a closed state so as to protect the end face of the female optical fiber connector 9 in the backplane connector 6 from dust, the receptacle dust door 62 further includes a receptacle L-shaped spring 625, a corner of the receptacle L-shaped spring 625 is connected with the receptacle rotating shaft 622, and when the backplane connector 6 is not in use, the receptacle L-shaped spring 625 provides the receptacle dust door 621 with elastic force so as to make the receptacle dust door 62 in the closed state.
In order to protect the end face of the male optical fiber connector 8 in the daughter board connector 7 when the daughter board connector 7 is not in use or during the plugging process between the daughter board connector 7 and the backplane connector 6, the daughter board connector 7 further includes a header dust-proof door 72, and the header dust-proof door 72 is disposed at the plugging interface of the header inner housing 73.
When the backplane connector 7 is plugged into the backplane connector 6, in order to open the header dustproof door 72 of the backplane connector 7, the seat base 61 further includes a seat push rod 613 and a slot 612, wherein the slot 612 is disposed on two sides of the seat base 61, the seat push rod 613 is disposed on an end surface of a plugging port of the slot 612, and the seat push rod 613 is used for pushing the header dustproof door 72 to open when the backplane connector 6 is plugged into the backplane connector 7.
In order to limit the position of the daughterboard connector 7 when the daughterboard connector 6 is plugged, the head base 74 further includes a latch 742, the latch 742 is disposed on two sides of the head base 74, and the latch 742 is used for coupling the latch 612 to latch the daughterboard connector 6 with the daughterboard connector 7, so that the female optical fiber connector 9 is mated with the male optical fiber connector 8.
When the backplane connector 7 is plugged with the backplane connector 6, in order to open the seat dust-proof door 62 of the backplane connector 6, the head base 74 further includes a head push rod 743 and a head insertion hole 744, where the head insertion hole 744 is used for accommodating the male optical fiber connector 8, the head push rod 743 is disposed at an end face of an insertion interface of the head insertion hole 744, and the head push rod 743 is used for pushing the seat dust-proof plate 621 to rotate when the backplane connector 6 is plugged with the backplane connector 7, so as to open the seat dust-proof door 62.
The socket base 61 further comprises a socket receptacle 614, the socket receptacle 614 being adapted to receive the female fiber optic connector 9.
The daughterboard connector 7 further comprises a locking member 75, and the locking member 75 is sleeved outside the header base 74. Specifically, the locking member 75 is elastically connected to the outside of the head base 74 through a spring, when the daughter board connector 7 is pulled out of the backplane connector 6, the square protrusion 731 arranged on the head inner housing 73 presses the locking member 75, and the locking member 75 drives the latch 742 to disengage from the latch 612 under the action of the square protrusion 731, so that the daughter board connector 7 is pulled out of the backplane connector 6.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A small MPO type optical fiber connector system is characterized by comprising an optical fiber connector, wherein the optical fiber connector comprises an optical assembly, a guide pin, a fixed seat, an elastic component and a cassette;
the fixed seat is connected with the guide pin, and the optical component is provided with a guide hole matched with the guide pin;
the fixed seat is provided with a sliding block, the clamping seat is provided with a sliding rail which is used for being coupled with the sliding block, the elastic part is contained in the sliding rail, and when the fixed seat and the clamping seat move relatively, the end face of the sliding block is pressed against the elastic part;
further comprising: the backplane connector and the daughter board connector form a plug structure;
the daughter board connector comprises a head base and a head inner shell, wherein the head inner shell is used for being sleeved outside the head base;
the backplane connector comprises a seat base, a protective cover and a seat dustproof door, wherein the protective cover is sleeved outside the seat base, and a through hole is formed in the side wall of the socket of the seat base;
the seat dustproof door comprises a seat dustproof plate, a seat rotating shaft and a knob, the seat rotating shaft is connected with the seat dustproof plate, the seat rotating shaft is used for penetrating through the through hole to enable the seat dustproof plate to be connected with the seat base, and one end of the seat rotating shaft, which penetrates through the through hole and extends to the outer side of the seat base, is connected with the knob;
the protective cover is provided with an opening for accommodating the knob, when the backplane connector is plugged with the daughter board connector, the seat rotating shaft drives the knob to rotate, and the protective cover is driven by the knob to move, so that the protective cover is pressed against the inner side of the header inner shell;
a fiber optic connector is received in either the header base or the socket base.
2. The miniature MPO-type optical fiber connector system according to claim 1, wherein the slider is provided with an arrow-shaped snap projection, and the side wall of the card holder is provided with a notch for receiving the snap projection, and the snap projection slides in the notch when the holder and the card holder are relatively moved.
3. The miniature MPO-type fiber optic connector system of claim 1, wherein the mounting block is coupled to the guide pin, and in particular:
the guide pin is provided with a groove, and the fixing seat is provided with a notch matched with the groove.
4. The miniature MPO-type fiber optic connector system of claim 1, wherein the holder is provided with a first through slot for passage of cables;
the clamping seat is provided with a second through groove for the cable to pass through, wherein the second through groove is superposed with the first through groove along the central line of the length direction.
5. The miniature MPO-type fiber optic connector system of claim 1, wherein the resilient member is specifically a spring.
6. The miniature MPO-type fiber optic connector system of claim 1, wherein an outer surface of the cassette is provided with a detent for positive engagement with the backplane connector or the daughterboard connector to secure the fiber optic connector within the backplane connector or the daughterboard connector.
7. The miniature MPO-type fiber optic connector system of claim 1, wherein the seat dust guard is provided with a first wedge-shaped projection;
the outside of head base sets up second wedge lug, second wedge lug is used for promoting the seat dust guard that is provided with first wedge lug revolves seat pivot is rotated, thereby makes the rotation of knob drives the motion of protection casing.
8. The miniature MPO-type fiber optic connector system of claim 1, wherein the backplane connector further comprises a sealing ring disposed on an end face at the boot insertion interface.
9. The miniature MPO-type fiber optic connector system of any of claims 1-8, wherein the anchor block is a resilient material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422244.9A CN113189711B (en) | 2021-04-20 | 2021-04-20 | Small MPO type optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422244.9A CN113189711B (en) | 2021-04-20 | 2021-04-20 | Small MPO type optical fiber connector |
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| Publication Number | Publication Date |
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| CN113189711A CN113189711A (en) | 2021-07-30 |
| CN113189711B true CN113189711B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110422244.9A Active CN113189711B (en) | 2021-04-20 | 2021-04-20 | Small MPO type optical fiber connector |
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| CN (1) | CN113189711B (en) |
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| CN101950055A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN101950052A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
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| CN110320609A (en) * | 2018-06-29 | 2019-10-11 | 中航光电科技股份有限公司 | Connector and its contact component, lock sleeve |
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| CN101950054B (en) * | 2010-09-10 | 2012-02-29 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN105425346A (en) * | 2015-12-01 | 2016-03-23 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN205450350U (en) * | 2016-03-03 | 2016-08-10 | 中国电子科技集团公司第二十三研究所 | Use neutral optical connector of MT type optic fibre contact |
| CN106896451A (en) * | 2017-04-21 | 2017-06-27 | 武汉市格力浦电子有限公司 | Fiber adapter |
| CN108196342B (en) * | 2017-12-04 | 2020-09-22 | 中航光电科技股份有限公司 | MT type optical fiber connection adapter |
| JP7107083B2 (en) * | 2018-08-08 | 2022-07-27 | 住友電気工業株式会社 | Optical connector and method for manufacturing optical connector |
| CN112327422B (en) * | 2020-10-28 | 2022-04-08 | 武汉光迅科技股份有限公司 | Fixing seat of guide pin and optical fiber connection male head |
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| CN101950055A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN101950052A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN104216060A (en) * | 2013-07-05 | 2014-12-17 | 中航光电科技股份有限公司 | MT (mechanical transfer) contact and optical connector with same |
| CN110320609A (en) * | 2018-06-29 | 2019-10-11 | 中航光电科技股份有限公司 | Connector and its contact component, lock sleeve |
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| CN113189711A (en) | 2021-07-30 |
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