CN115224548A - A Blind-Mating, Rotating, and Easy-to-Clean Wireless Optical Transmission Connector Assembly - Google Patents

Abstract

A blind-mating, rotating and easy-to-clean wireless optical transmission connector assembly, the plug comprises a plug housing, the socket comprises a socket housing, a first transceiver module is nested and fixed in the plug housing, and an opening is provided at the insertion end of the plug housing , a first lens for closing the opening is set in the plug shell; a second transceiver module is nested and fixed in the socket shell, an opening is set at the insertion end of the socket shell, and a second lens for closing the opening is set in the socket shell ; The plug is inserted into the socket, and the first lens is close to and aligned with the second lens. The connector assembly makes up for the blank of wireless optical transmission connectors when the connector is inserted and separated, and at the same time realizes the miniaturization design of the product; the connector assembly realizes the transmission of optical signals in the case of non-contact on the end face of the connector, and the signal It has no electromagnetic interference and is not affected by the upper limit of data transmission of traditional pinhole connectors.

Description

A Blind-Mating, Rotating and Easy-Cleaning Wireless Optical Transmission Connector Assembly

technical field

The invention belongs to the technical field of connectors, and in particular relates to a wireless optical transmission connector assembly with blind insertion, rotation and easy cleaning.

Background technique

With the rise of Internet applications, optical wireless communication technology has attracted more and more companies' attention due to its wide bandwidth, anti-interference, high transmission rate, strong confidentiality, etc., and the application scope of the technology is also expanding. Applied in various fields. The existing connector adopts the structure of pin jack, which is not easy to clean after being polluted by dirt, thus affecting the signal transmission effect, and it is easy to damage the connector during the cleaning process; the traditional connector is easy to be damaged in the process of frequent plugging. The contacts are damaged, and the pinholes need to be aligned during the insertion process, and the operation is cumbersome; the insertion part of the existing connector needs a shielding structure, which makes the connector structure more complex and larger.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a wireless optical transmission connector assembly that is blind-mating, rotating and easy to clean.

The purpose of the present invention is to adopt the following technical solutions to achieve. According to the present invention, a blind-mating, rotating and easy-to-clean wireless optical transmission connector assembly includes a plug and a socket. The plug includes a plug housing, the socket includes a socket housing, and a first transceiver module is nested and fixed in the plug housing. , the insertion end of the plug housing is provided with an opening, and the first lens used to close the opening is arranged in the plug housing; the second transceiver module is nested and fixed in the socket housing, the insertion end of the socket housing is provided with an opening, and the socket housing is provided with an opening. The body is provided with a second lens for closing the opening; the plug is inserted into the socket, and the first lens is close to and aligned with the second lens.

Further, a fourth O-ring is embedded in the inner wall of the plug housing and the first lens; and a fifth O-ring is embedded in the inner wall of the socket housing and the second lens.

Further, a side of the plug housing away from the insertion end is nested and screwed with a plug nut; a side of the socket housing away from the insertion end is nested and screwed with a socket nut.

Further, the outer wall of the plug nut is provided with an annular boss, and the outer wall near the insertion end is provided with threads, the rear end of the plug housing abuts on the boss of the plug nut, and the plug between the boss of the plug nut and the thread is provided. The outer wall of the nut is nested with a first O-ring; the outer wall of the socket nut is provided with an annular boss, and the outer wall close to its insertion end is provided with threads, the rear end of the socket shell abuts on the boss of the socket nut, and the socket nut protrudes A sixth O-ring is nested on the outer wall of the socket nut between the table and the thread.

Further, the rear end of the first transceiver module is clamped between the step in the plug housing and the front end surface of the plug nut, and the front end surface abuts on the first lens; the rear end of the second transceiver module is clamped in the Between the step in the socket housing and the front end surface of the socket nut, the front end surface abuts on the second lens.

Further, the plug nut and the socket nut are all threaded with cables, the cables are connected to the corresponding first transceiver module and the second transceiver module, and are sealed and fixed with the corresponding plug nut and socket nut through tail attachments.

Further, the inner wall of the socket housing close to the insertion end is nested with a second O-ring for sealing the plug housing and the socket housing.

Further, the inner wall of the socket housing close to the insertion end is nested with a canted coil spring, and the outer wall of the plug housing close to the insertion end is provided with a card slot. The end of the body close to the mating end is clamped on the step outside the plug housing.

Further, the outer wall of the socket housing is provided with an annular boss, the boss is nested with a third O-ring on the side of the boss facing the insertion end, the outer wall of the socket housing close to the insertion end is threadedly connected with a nut, and the nut is connected to the socket. Ratchet washers and washers are sleeved sequentially from front to back between the bosses on the housing.

Further, the first transceiver module and the second transceiver module are provided with an electro-optical conversion module and a photoelectric conversion module.

Compared with the prior art, the advantages of the present invention are: the connector assembly makes up for the blank of the wireless optical transmission connector when the connector is inserted and separated, and at the same time realizes the miniaturized design of the product; the connector assembly realizes The optical signal is transmitted in the non-contact case of the connector end face, the signal is free from electromagnetic interference, and is not affected by the upper limit of the data transmission of the traditional pinhole connector; the non-contact end face design of the connector, the signal transmission part of the plug and the socket is not affected. Contact is required, so that the connector has the function of 360° blind insertion and rotation, and the end face will not be worn during use, which improves the product life; the front face of the connector adds a lens to effectively protect the surface of the transceiver module from being damaged, and At the same time, the optical signal can be effectively transmitted, and the lens can be wiped directly when it is dirty, which has the function of easy cleaning.

The above description is only an overview of the technical solutions of the present invention, in order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand , the following specific preferred embodiments, and in conjunction with the accompanying drawings, are described in detail as follows.

Description of drawings

1 is a cross-sectional view of Embodiment 1 of the present invention;

Fig. 2 is a sectional view of the plug in Fig. 1;

3 is a cross-sectional view of the socket in FIG. 1;

4 is a perspective view of a transceiver module in Embodiment 2 of the present invention;

5 is a perspective view of FIG. 4 from another perspective;

Fig. 6 is the front view of Fig. 4;

FIG. 7 is a perspective view of the first printed board in FIG. 4;

FIG. 8 is a perspective view of the second printed board in FIG. 4 .

[reference number]

1. Plug nut, 2. First O-ring, 3. Plug shell, 301, Card slot, 4. First transceiver module, 401, Shell, 402, First printed board, 403, Second printed board , 404, Components, 405, Convex lens, 5, Canted coil spring, 6, Second O-ring, 7, Nut, 8, Ratchet washer, 9, Washer, 10, Third O-ring, 11, No. Four O-rings, 12, first lens, 13, fifth O-ring, 14, second lens, 15, second transceiver module, 16, socket housing, 17, sixth O-ring, 18, socket nut .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiments of a blind-mate, rotating and easy-to-clean wireless optical transmission connector assembly of the present invention are shown in FIGS. 1 to 3 . Including plug and socket, the plug is the free end and the socket is the fixed end. For the convenience of description, the front end of each component in the plug and the socket is the end close to the mating end, and the rear end is the end far from the mating end.

The plug includes a plug nut 1, a first O-ring 2, a plug housing 3, a first transceiver module 4, a fourth O-ring 11, and a first lens 12. The socket includes a canted coil spring 5, a second O-ring 6, Nut 7, ratchet washer 8, washer 9, third O-ring 10, fifth O-ring 13, second lens 14, second transceiver module 15, socket housing 16, sixth O-ring 17, socket Nut 18.

The plug nut 1 is internally provided with an axially through cavity, and its outer wall is provided with an annular boss.

The plug housing 3 is provided with an inner cavity that penetrates through the plug housing 3 in the axial direction. The inner wall of the plug housing 3 is provided with threads and is connected with the plug nut 1 by threads. The rear end of the plug housing 3 is provided with an annular boss, and the boss on the plug housing 3 abuts on the boss of the plug nut 1 . The first O-ring 2 is sealed between the plug housing 3 and the plug nut 1 . The front outer diameter of the plug housing 3 is smaller than the rear outer diameter, and the front inner diameter is also smaller than the rear inner diameter. Threads on the plug housing 3 are provided on the inner wall at its rear. The outer wall of the front end of the plug housing 3 is provided with a card slot 301 , and the front side of the card slot 301 is inclined and arranged to facilitate the canted coil spring 5 to smoothly slide into the card slot 301 . The front end of the plug housing 3 is provided with a chamfer for easy insertion.

A first transceiver module 4 is nested in the inner cavity of the plug housing 3 , and the rear end of the first transceiver module 4 is clamped on the step formed between the front and rear of the plug housing 3 . The first transceiver module 4 is fixed in the plug housing 3 by contacting the front end surface of the plug nut 1 . The first lens 12 is nested in the inner cavity of the plug housing 3 close to the front end, the front end surface of the first lens 12 abuts on the inner end surface of the front opening of the plug housing 3, and the rear end abuts on the front end surface of the first transceiver module 4, Therefore, the first lens 12 is fixed in the plug housing 3 and closes the front opening of the plug housing 3 . The inner wall of the plug housing 3 near the front end is nested with a fourth O-ring 11 for sealing the first lens 12 and the plug housing 3 .

The socket housing 16 is provided with a cavity passing through the socket housing 16 in the axial direction, and the cavity is sequentially nested with a second lens 14 and a second transceiver module 15 from front to back. The front end surface of the second lens 14 abuts on the step in the socket housing 16 , and the rear end surface abuts on the front end surface of the second transceiver module 15 . The rear end of the second transceiver module 15 is clamped on another step in the socket housing 16 .

The inner wall of the socket housing 16 near the rear end is screwed with a socket nut 18 , and the rear end surface of the second transceiver module 15 abuts the front end surface of the socket nut 18 . The outer wall of the socket nut 18 is provided with an annular boss, and the outer wall near the front end is provided with threads. The outer wall of the socket nut between the boss and the thread is nested with a sixth O-ring 17. The sixth O-ring 17 is used to seal the socket nut 18 and the socket nut. Socket housing 16 .

The cavity at the front end of the socket housing 16 is used for inserting the plug, and the inner wall of the cavity is sequentially nested with a canted coil spring 5 and a second O-ring 6 from front to back.

The outer wall of the socket housing 16 is provided with an annular boss, and the side of the boss facing the front end is nested with a third O-ring 10. The outer wall of the socket housing 16 near the front end is threadedly connected with a nut 7, and the nut 7 is connected to the socket shell. A ratchet washer 8 and a washer 9 are nested on the socket housing 16 between the bosses of the body 16 in sequence from front to back.

When the plug is inserted into the socket, the front end of the plug housing 3 is inserted into the cavity of the front end of the socket housing 16. With the insertion of the plug, the canted coil spring 5 is compressed by the outer wall of the plug housing 3. The slot 301 slides to the position of the canted coil spring 5, the canted coil spring 5 enters the slot 301 under the action of its own elastic force and gets stuck in the slot 301, and the axial fixation between the plug and the socket is realized by the canted coil spring 5 , to ensure that it does not loosen. At this time, the step on the outside of the plug housing 3 is also stuck at the front end of the socket housing 16 to prevent excessive force during insertion, and the plug housing 3 continues to overcome the elastic force of the canted coil spring 5 to insert inwardly, thereby preventing damage to the plug Components in the housing 3 and the socket housing 16 .

After the plug is inserted into the socket, the first lens 12 is close to and aligned with the second lens 14 . Both the first transceiver module 4 and the second transceiver module 15 are provided with a photoelectric conversion module and an electro-optical conversion module. The cable is connected to the first transceiver module 4 through the plug nut 1, and the cable is sealed and fixed on the plug nut 1 through the tail attachment. Similarly, another cable is connected to the second transceiver module 15 through the socket nut 18. The socket The nut 18 and its corresponding cable are sealed and fixed on the socket nut 18 through another tail attachment.

When the first transceiver module 4 in the plug is used as a sending module, the first transceiver module 4 converts the electrical signal transmitted by the cable into an optical signal through the electro-optical conversion module and transmits it, and the optical signal passes through the first lens 12 and is transmitted to the socket. Then, the optical signal enters the second transceiver module 15 after passing through the second lens 14 in the socket, and then the photoelectric conversion module in the second transceiver module 15 converts the optical signal into an electrical signal, and the electrical signal passes through the cable on the socket. output. When the first transceiver module 4 in the plug is used as a receiving module, and the second transceiver module 15 is used as a sending module, the working process is opposite to the above-mentioned working process.

The front faces of the plug and socket are not in direct contact after being inserted, and there is no key position restriction between the plug housing 3 and the socket housing 16, and the light beam emitted by the first transceiver module 4 passes through the first lens 12 and the second lens in turn. 14 transmits, and is received by the second transceiver module 15, only need to ensure the alignment of the plug housing 3 and the socket housing 16, the plug and socket can be inserted and rotated at any angle of 360°.

The first lens 12 and the second lens 14 arranged at the front end of the plug and socket can be used to protect the first transceiver module 4 and the second transceiver module 15 from being exposed to the outside world in addition to passing through the optical signal. Pollution. At the same time, a fourth O-ring 11 is arranged between the first lens 12 and the plug housing 3, and a fifth O-ring 13 is arranged between the second lens 14 and the socket housing 16. These two O-rings prevent dust Enter the inside of the plug housing 3 and the socket housing 16 . After the surfaces of the two lenses of the first lens 12 and the second lens 14 are dirty, the surfaces of the lenses can be wiped directly without causing damage to the internal modules, which has the function of being easy to clean.

The nut 7, the ratchet washer 8, and the washer 9 are fixed and anti-loosening structures. When the socket is installed on the panel, the panel is stuck between the washer 9 and the boss of the socket housing 16. Tighten the nut 7 to make the ratchet washer. 8. The gasket 9 is close to and squeezes the panel, and the panel is firmly clamped between the gasket 9 and the boss of the socket housing 16 to ensure that the socket does not loosen after being fixed. The third O-ring 10 is disposed between the boss and the panel of the socket housing 16 to achieve a sealing function.

The first O-ring 2 is arranged between the plug nut 1 and the plug housing 3, and the sixth O-ring 17 is arranged between the socket housing 16 and the socket nut 18, so as to realize the sealing function of the connector tail. A canted coil spring 5 and a second O-ring 6 are arranged in the cavity at the front end of the socket housing 16. After the plug and the socket are inserted, the plug is clamped by the canted coil spring 5 to prevent the plug from falling off. Elastic, so that the plug has a buffer in the axial direction to avoid damage to the plug and socket.

The plug housing 3 is directly matched with the first transceiver module 4, and the socket housing 16 is directly matched with the second transceiver module 15, so that intermediate parts can be removed. The signal is not easily affected by electromagnetic interference, the shielding at the position where the plug and socket are inserted can be omitted, the structure is simplified, the radial dimension of the connector product is also effectively reduced, and the miniaturization of the connector is realized.

The connector assembly makes up for the blank of the wireless optical transmission connector when the connector is inserted and separated, and at the same time realizes the miniaturized design of the product. The connector assembly realizes the transmission of optical signals in the case of non-contact end face of the connector, the signal is free from electromagnetic interference, and is not affected by the upper limit of data transmission of traditional pinhole connectors; the non-contact end face design of the connector, the plug and the socket The signal transmission part does not need to be contacted. Combined with the characteristics of the canted coil spring 5, the connector has the function of 360° blind insertion and rotation, and the end face will not be worn during use, which improves the product life; the front face of the connector increases The lenses (the first lens 12 and the second lens 14) can effectively protect the surface of the transceiver module from being damaged, and at the same time ensure that the optical signal can be effectively transmitted. The lens can be wiped directly when it is dirty, and has the function of easy cleaning; There are O-rings between the matching parts, which can effectively prevent dust from entering the interior of the connector, avoid contamination, and ensure the overall sealing of the product; the connection between the plug and the socket is provided with a locking structure of an oblique coil spring 5. Realize the push-pull quick-lock function of the connector.

In the second embodiment of the present invention, on the basis of the first embodiment, the first transceiver module 4 and the second transceiver module 15 in the connector assembly use the transceiver modules shown in FIGS. 3 to 8 . The first transceiver module 4 and the second transceiver module 15 have the same structure, and the first transceiver module 4 is used as an example for description. The first transceiver module 4 includes a housing 401 , a first printed board 402 , a second printed board 403 , a component 404 , and a convex lens 405 . The housing 401 is a cylindrical body that penetrates through the axial direction, and a convex lens 405 is arranged in the housing 401 . The backs of the first printed board 402 and the second printed board 403 are attached to each other, and the outer circumferences of the two printed boards are circumferentially distributed with a plurality of pads. The connection is made through the circularly distributed pads, and these pads can also be used as signal transmission channels, avoiding the situation of opening holes in the printed board. The pads on the two printed boards are in one-to-one correspondence, the pads are nested on the outer circumference of the printed board, and the outer wall is provided with a circumferential arc groove, which is convenient for positioning and welding. The first printed board 402 is fixed on one end of the casing 401 , and its front face faces the casing 401 .

The first printed board 402 is used for the micro-assembly of the transceiver module. Since a plurality of components are arranged on the front side of the first printed board 402 , the surface of the first printed board 402 cannot have holes. The second printed board 403 is used for signal extraction, and a plurality of holes are opened on it. The holes are matched with suitable contact pieces, so that the contact pieces are electrically connected to the second printed board 403 and the first printed board 402, and further Signal extraction is achieved, and the remaining components 404 are micro-assembled on the surface of the second printed board 403 . The flat surface of the convex lens faces the first printed board 402, and the convex surface faces the front end of the connector.

The printed boards of the first transceiver module 4 and the second transceiver module 15 are provided with photoelectric conversion modules and electro-optical conversion modules, and the photoelectric conversion modules and the electro-optical conversion modules are located in the housing 401 and face the convex lens. The cable is connected to the first transceiver module 4 through the plug nut 1, the wires in the cable are electrically connected to the printed board through the contact piece, and the cable is sealed and fixed on the plug nut 1 through the tail attachment. Similarly, another cable It is connected to the second transceiver module 15 through the socket nut 18, the wires in the cable are electrically connected to the printed board through the contact piece, and the socket nut 18 and its corresponding cable are sealed and fixed on the socket nut 18 through another tail attachment.

When the first transceiver module 4 in the plug is used as a sending module, the electrical signal transmitted by the cable is converted into an optical signal through the electro-optical conversion module and emitted, and the optical signal is converted into parallel light through the convex lens in the first transceiver module 4 , the parallel light is transmitted to the socket after passing through the first lens 12 . Then, the parallel light passes through the second lens 14 in the socket and then enters the convex lens in the second transceiver module 15, and the parallel light is focused on the corresponding components on the printed board, and then the parallel light is transmitted by the second transceiver module 15. The photoelectric conversion module converts the optical signal into an electrical signal, and the electrical signal is output through the cable on the socket.

The transceiver module attaches the backs of the two printed boards to realize the miniaturization design of the module by stacking the printed boards; For electrical connection, it is not necessary to punch holes on the first printed board 402 full of components, but only need to punch holes in the second printed board 403 to realize the electrical connection between the contacts and the printed board; The board is designed to be stacked, and components can be packaged on both sides of the superimposed printed board to effectively utilize the space of the printed board; punch holes on the second printed board 403, and use a single printed board to pass through The hole design replaces the blind hole design of the integrated printed board, which reduces the processing difficulty and cost. The transceiver module can reduce the radial size and ensure the miniaturized design of the product; at the same time, compared with the integrated printed board, the processing difficulty and cost can be reduced.

In the third embodiment of the present invention, the transceiver module in the second embodiment can be applied to other devices independently, not only to the connector assembly.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principle and spirit of the invention Variations, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a rotatory easy clear wireless light transmission connector subassembly of blind mate, includes plug, socket, and the plug includes plug housing (3), and the socket includes socket housing (16), its characterized in that: a first transceiver module (4) is fixed in the plug shell (3) in an embedded mode, an opening is formed in the inserting end of the plug shell (3), and a first lens (12) used for closing the opening is arranged in the plug shell (3); a second transceiver module (15) is fixed in the socket shell (16) in an embedded mode, an opening is formed in the inserting end of the socket shell (16), and a second lens (14) used for closing the opening is arranged in the socket shell (16); the plug is inserted into the socket with the first lens (12) adjacent and aligned with the second lens (14).

2. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: the inner wall of the plug shell (3) matched with the first lens (12) is nested with a fourth O-shaped ring (11); the inner wall of the socket shell (16) matched with the second lens (14) is nested with a fifth O-shaped ring (13).

3. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: one side of the plug shell (3) far away from the insertion end is nested and is in threaded connection with a plug nut (1); one side of the socket shell (16) far away from the insertion end is nested and connected with a socket nut (18) in a threaded mode.

4. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 3, wherein: the outer wall of the plug nut (1) is provided with an annular boss, the outer wall close to the insertion end of the plug nut is provided with a thread, the rear end of the plug shell (3) abuts against the boss of the plug nut (1), and the outer wall of the plug nut between the boss of the plug nut and the thread is nested with the first O-shaped ring (2); the outer wall of the socket nut (18) is provided with an annular boss, the outer wall close to the insertion end of the socket nut is provided with a thread, the rear end of the socket shell (16) abuts against the boss of the socket nut (18), and a sixth O-shaped ring (17) is nested on the outer wall of the socket nut between the boss of the socket nut and the thread.

5. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 3, wherein: the rear end part of the first transceiver module (4) is clamped between a step in the plug shell (3) and the front end surface of the plug nut (1), and the front end surface abuts against the first lens (12); the rear end part of the second transceiver module (15) is clamped between a step in the socket shell (16) and the front end surface of the socket nut (18), and the front end surface abuts against the second lens (14).

6. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 3, wherein: the plug nut (1) and the socket nut (18) are all provided with cables in a penetrating mode, the cables are connected with the corresponding first receiving and transmitting module (4) and the second receiving and transmitting module (15), and the corresponding plug nut (1) and the corresponding socket nut (18) are fixed in a sealing mode through tail accessories.

7. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: and the inner wall of the socket shell (16) close to the plugging end is nested with a second O-shaped ring (6) for sealing the plug shell (3) and the socket shell (16).

8. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: socket casing (16) are close to the inner wall nested oblique coil spring (5) of the end of inserting, and plug casing (3) are close to the outer wall of the end of inserting and set up draw-in groove (301), and plug and socket insert the back that closes, oblique coil spring (5) card is in draw-in groove (301), and the tip card that socket casing is close to the end of inserting simultaneously is on the step in the plug casing (3) outside.

9. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: the outer wall of the socket shell (16) is provided with an annular boss, the boss is nested with a third O-shaped ring (10) towards one side of the inserting end, the outer wall of the socket shell (16) close to the inserting end is in threaded connection with a nut (7), and a ratchet gasket (8) and a gasket (9) are sequentially sleeved between the nut (7) and the boss on the socket shell (16) from front to back.

10. A blind mate rotary easy clean wireless optical transmission connector assembly according to claim 1, wherein: the first transceiver module (4) and the second transceiver module (15) are both provided with an electro-optical conversion module and a photoelectric conversion module.

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