CN201368929Y

CN201368929Y - LRM optical module plug and LRM optical module using the same

Info

Publication number: CN201368929Y
Application number: CNU2009200882957U
Authority: CN
Inventors: 程霁竑
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2009-12-23
Anticipated expiration: 2019-01-15

Abstract

The utility model relates to an LRM optical module. The optical module includes a plug and a socket, and the plug and the socket are correspondingly plugged and matched. The plug includes a plug insulator, and at least one passage through the front and rear end faces of the plug insulator is arranged in the plug insulator; The plug insulator includes a plug front insulator and a plug rear insulator that are fixedly connected together; the channel includes a pin through hole that penetrates the front and rear end faces of the plug front insulator and a pin installation groove that passes through the front and rear end faces of the plug rear insulator provided on the side of the plug rear insulator , the pin installation groove is far away from the front insulator end of the plug, and a card edge is provided, and a spring seat is clamped at the card edge; MT pins are inserted into the one-way thrust in the channel, and there is a press between the MT pins and the spring seat. The spring, the MT pin backing gap is provided in the pin installation groove at the tail of the MT pin; the socket includes a socket insulator, and a second MT pin is fixed in the socket insulator corresponding to the position of the MT pin of the plug.

Description

A kind of LRM optical module plug and use the LRM optical module of this plug

Technical field

The utility model relates to a kind of joints of optical fibre, particularly a kind of LRM optical module.

Background technology

The present generation aircraft function strengthens day by day, and it is complicated more that avionics system becomes, and impels the avionics system structure to continue to optimize.Though traditional centralized control is handled the Integrated Avionics System of formula structure respectively at present also being extensive use of,, will be distributed control distribution process formula structure gradually and replace because of its inherent shortcoming.The optimization of Integrated Avionics System structure directly causes the development of LRM (external replaceable module) modular structure technology.But, also there be not at present the LRM optical module of appearance based on the MT contact pin, following a kind of MT contact pin type of attachment is disclosed based on United States Patent (USP) US7090408 in the optical fiber connection of MT contact pin, two MT contact pins as shown in Figure 1, one is positive MT contact pin 10L, another is cloudy MT contact pin 10R, two MT contact pins extend as shown in Figure 2 along a straight line to after inserting, afterwards, MT contact pin correspondence after two pairs inserted is assembled in the housing, as shown in Figure 3, this housing comprises a lower house 100 and a lid 200, link together by screw retention between lower house 100 and a lid 200, the left end of lid 200 medial surfaces is installed with one and crosses line end platform 300, crosses between line end platform 300 and the positive MT contact pin 10L in the lower house 100 and is folded with a spring 400.Adopt this mode to connect two MT contact pins and can well guarantee the reliability that connects and the persistence of use, but, it is more loaded down with trivial details to connect two MT contact pin operations by this way, inefficiency, the MT contact pin needs the connection end face of optical fiber is carried out cleaning in use after a period of time, the connected mode of such scheme need be taken off the lid 200 that is connected on the lower house 100 by screw earlier and the MT contact pin could be taken out when carrying out the cleaning of MT contact pin, this operation is same more loaded down with trivial details, inefficiency.

The utility model content

The purpose of this utility model provides a kind of LRM optical module, a kind of LRM optical module plug also is provided simultaneously, with solving present employing two MT contact pins to inserting, complex operation in the cleaning that reaches in the future is installed, ineffective problem are installed in same housing.

For achieving the above object, the utility model adopts following technical scheme: a kind of LRM optical module plug, and this plug comprises plug insulator, is provided with a passage that connects the plug insulator front/rear end in the plug insulator at least; Described plug insulator comprises before the plug that is fixed together insulator behind the insulator and plug; Described passage comprises the contact pin mounting groove of insulator front/rear end behind the perforation plug that is provided with on the insulator side behind the contact pin through hole that connects insulator front/rear end before the plug and the plug, the contact pin mounting groove away from plug before the insulator end be provided with the card edge, Ka Yanchu is installed with spring base; Unidirectional thrust is inserted with the MT contact pin in the described passage, presses between MT contact pin and the spring base to be provided with spring, is provided with MT contact pin rollback gap in the contact pin mounting groove of MT contact pin afterbody.

Described spring base is I-shaped, and spring base is installed in same passage afterbody two relatively between the card edge by I-shaped middle part.

Described MT contact pin cooperates with the unidirectional thrust of the rear end face of procapsid by the cascaded surface that is arranged on the MT contact pin.

Before the described plug front end face of insulator be provided with pilot hole and or guide finger.

A kind of LRM optical module, this optical module comprises plug and socket, and corresponding the pegging graft of plug and socket cooperates, and described plug comprises plug insulator, is provided with a passage that connects the plug insulator front/rear end in the plug insulator at least; Described plug insulator comprises before the plug that is fixed together insulator behind the insulator and plug; Described passage comprises the contact pin mounting groove of insulator front/rear end behind the perforation plug that is provided with on the insulator side behind the contact pin through hole that connects insulator front/rear end before the plug and the plug, the contact pin mounting groove away from plug before the insulator end be provided with the card edge, Ka Yanchu is installed with spring base; Unidirectional thrust is inserted with the MT contact pin in the described passage, presses between MT contact pin and the spring base to be provided with spring, is provided with MT contact pin rollback gap in the contact pin mounting groove of MT contact pin afterbody; Described socket comprises the socket insulator, and the MT contact pin position corresponding to plug in the socket insulator is installed with the 2nd MT contact pin.

Described socket insulator comprises before the socket that is fixed together insulator behind the insulator and socket, and the 2nd MT contact pin passes before the socket insulator geometrical clamp and is located at before the socket behind the insulator and socket between the insulator.

Insulator is provided with optical-fibre channel behind the described socket, is provided with incoming line between the side of insulator behind optical-fibre channel and the socket.

Before the described plug front end face of insulator be provided with pilot hole and or guide finger, described socket insulator be provided with plug before on the front end face of insulator pilot hole and or the guide finger of guide finger corresponding matching and or pilot hole.

The LRM optical module of such scheme, comprise plug and socket, when needs optical fiber conducting transmission signals, only need plug and socket can be finished the connection task to inserting, easy and simple to handle, the efficient height, in addition, when needing the contact end of cleaning optical fiber, only need unplug plug and socket can carry out cleaning to the optical fiber of MT contact pin end face, operate easy equally, high efficiency.

In addition, another one of the present utility model is improved, the contact pin mounting groove of insulator rear and front end face after being provided with the perforation plug on the side of insulator behind the plug, the contact pin mounting groove away from contact pin before the insulator end be provided with the card edge, card is installed with I-shaped spring base along the place, presses between MT contact pin and the I-shaped spring base to be provided with spring.Adopt this structure, in assembling during plug earlier in the contact pin through hole with MT contact pin inserting insulator before plug, afterwards insulator before insulator behind the plug and the plug is fixed together, promote I-shaped spring base along the direction of compression spring more subsequently, and the card that I-shaped spring base is snapped fitted to the contact pin mounting groove is along last, spring base adopt I-shaped both can be easily with card along clamping, when assembling, be convenient to staff's assembling that pinches and lead again.Adopt said structure not only easy to assembly, but also can satisfy the flexibility contact of MT contact pin, effectively reduced the light signal loss of contact position.

Also have, be respectively equipped with on the grafting surface of contact of plug and socket the guide finger that cooperatively interacts and or pilot hole, when pegging graft, guide finger and pilot hole play the guiding role, the convenient operation of pegging graft, behind the access node bundle to be inserted, guide finger that is combined together and pilot hole have played pinpoint effect.

Description of drawings

Fig. 1 is the structural representation that prior art two MT contact pins are pegged graft;

Fig. 2 is the structural representation after prior art two MT contact pins are pegged graft;

Fig. 3 is the blast structural representation that is loaded on after prior art two MT contact pins are pegged graft in the housing;

Fig. 4 is the structural representation of the utility model LRM optical module plug;

Fig. 5 is the perspective view of the utility model LRM optical module plug;

Fig. 6 is the perspective view of insulator behind the utility model plug;

Fig. 7 is the structural representation of the utility model LRM optical module socket;

Fig. 8 is the solid blast structural representation of the utility model LRM optical module socket;

Fig. 9 is the structural representation after the plug and socket of the utility model LRM optical module is pegged graft.

Embodiment

Fig. 4, Fig. 5, LRM optical module plug of the present utility model shown in Figure 6, comprise the preceding insulator 1 of plug, the grafting mating surface of insulator 1 is provided with two pilot holes 9 before the plug, two pilot holes 9 are the diagonal angle setting on the insulator 1 before plug, evenly be laid with six contact pin through holes 20 on the insulator 1 before the plug, contact pin through hole 20 is two row, three row and arranges on the insulator 1 before plug, be plugged with MT contact pin 5 in the contact pin through hole 20, card on the thimble 7 of MT contact pin 5 along with plug before the unidirectional thrust of insulator 1 rear end face be fastened, the rear end of insulator 1 is connected with insulator 2 behind the plug by screw retention before the plug, 2 liang of relative sides of insulator are respectively equipped with the contact pin mounting groove that connects insulator 2 rear and front end faces behind the plug behind the plug, the contact pin mounting groove away from plug before insulator 1 end be provided with card along 8, card is installed with I-shaped spring base 3 along 8 places, MT contact pin 5 is slidingly matched with the contact pin mounting groove, presses between the thimble 7 of MT contact pin 5 and the spring base 3 to be provided with spring 6; Be provided with MT contact pin rollback gap 50 between the afterbody of MT contact pin 5 and the contact pin mounting groove.In addition, dust cover 4 is installed on the insulator 1 before plug.

Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, LRM optical module of the present utility model shown in Figure 9, comprise the plug 22 and socket 23 that are plugged on together, wherein, plug comprises the preceding insulator 1 of plug, the grafting mating surface of insulator 1 is provided with two pilot holes 9 before the plug, two pilot holes 9 are the diagonal angle setting on the insulator 1 before plug, evenly be laid with six contact pin through holes 20 on the insulator 1 before the plug, contact pin through hole 20 is two row, three row and arranges on the insulator 1 before plug, be plugged with MT contact pin 5 in the contact pin through hole 20, card on the thimble 7 of MT contact pin 5 along with plug before the unidirectional thrust of insulator 1 rear end face be fastened, the rear end of insulator 1 is connected with insulator 2 behind the plug by screw retention before the plug, 2 liang of relative sides of insulator are respectively equipped with the contact pin mounting groove that connects insulator 2 rear and front end faces behind the plug behind the plug, the contact pin mounting groove away from plug before insulator 1 end be provided with card along 8, card is installed with I-shaped spring base 3 along 8 places, MT contact pin 5 is slidingly matched with the contact pin mounting groove, presses between the thimble 7 of MT contact pin 5 and the I-shaped spring base 3 to be provided with spring 6; Be provided with MT contact pin rollback gap 50 between the afterbody of MT contact pin 5 and the contact pin mounting groove.In addition, dust cover 4 is installed on the insulator 1 before plug; Socket comprises the preceding insulator 14 of socket, diagonal angle, insulator 14 upper edge is provided with two guide finger mounting holes before the socket, be fitted with guide finger 11 in the guide finger mounting hole, evenly be laid with six contact pin jacks 15 on the insulator 14 before the socket, contact pin jack 15 is two row, three row on the insulator 14 before socket arranges, and is plugged with the 2nd MT contact pin 13 in the contact pin jack 15; There is insulator 10 behind the socket rear end of insulator 14 by screw retention before the socket, insulator 10 is fixed together insulator 14 before guide finger 11 and the 2nd MT contact pin 13 and the socket behind the socket, in addition, insulator is provided with optical-fibre channel behind the socket, is provided with incoming line 51 behind optical-fibre channel and the socket between the side of insulator 10.Pilot hole 9 on the plug and guide finger 11 corresponding matching on the socket.

Claims

1. A LRM optical module plug, characterized in that: the plug includes a plug insulator, at least one passage through the front and rear end faces of the plug insulator is provided in the plug insulator; the plug insulator includes a plug front insulator and a plug rear The insulator; the channel includes a pin through hole penetrating through the front and rear end faces of the insulator before the plug and a pin installation groove penetrating through the front and rear end faces of the rear insulator of the plug provided on the side of the rear insulator of the plug. The pin installation groove is far away from the front insulator end of the plug. , a spring seat is installed on the edge of the card; the MT pin is inserted into the one-way thrust in the channel, and a spring is pressed between the MT pin and the spring seat, and the pin installation groove at the tail of the MT pin is provided with MT pin backlash.

2. The LRM optical module plug according to claim 1, wherein the spring seat is I-shaped, and the spring seat is clamped between two opposite clamping edges at the end of the same channel through the middle part of the I-shaped.

3. The LRM optical module plug according to claim 1 or 2, characterized in that: the MT pin is one-way thrust-fitted with the rear end surface of the front housing through a stepped surface provided on the MT pin.

4. The LRM optical module plug according to claim 3, characterized in that: guide holes and/or guide pins are provided on the front end surface of the front insulator of the plug.

5. An LRM optical module, characterized in that: the optical module includes a plug and a socket, the plug and the socket are correspondingly plugged and matched, the plug includes a plug insulator, and at least one passage through the front and rear end faces of the plug insulator is provided in the plug insulator; The plug insulator includes a plug front insulator and a plug rear insulator that are fixedly connected together; the channel includes a pin through hole that penetrates the front and rear end faces of the plug front insulator and a pin that passes through the front and rear end faces of the plug rear insulator provided on the side of the plug rear insulator The installation groove, the pin installation groove is far away from the front insulator end of the plug, and there is a card edge, and the spring seat is installed on the card edge; the MT pin is inserted into the one-way thrust in the channel, and the MT pin is pressed between the spring seat. A spring is provided, and an MT pin retraction gap is provided in the pin installation groove at the tail of the MT pin; the socket includes a socket insulator, and a second MT pin is fixed in the socket insulator corresponding to the position of the MT pin of the plug .

6. The LRM optical module according to claim 5, characterized in that: the socket insulator includes a socket front insulator and a socket rear insulator fixedly connected together, and the second MT pin passes through the socket front insulator and is fixedly clamped on the socket between the front insulator and the rear insulator of the receptacle.

7. The LRM optical module plug according to claim 5 or 6, wherein the spring seat is I-shaped, and the spring seat is clamped between two opposite clamping edges at the end of the same channel through the middle part of the I-shaped.

8 . The LRM optical module plug according to claim 7 , wherein the MT pin is one-way thrust-fitted with the rear end surface of the front housing through a stepped surface provided on the MT pin.

9 . The LRM optical module according to claim 8 , wherein a fiber optic channel is provided on the rear insulator of the socket, and a cable inlet is provided between the fiber channel and the side of the rear insulator of the socket.

10. The LRM optical module according to claim 9, characterized in that: guide holes and/or guide pins are provided on the front end face of the front insulator of the plug, and the front end face of the front insulator of the plug is provided on the described socket insulator. The guide holes and/or guide pins on the corresponding matching guide pins and/or guide holes.