A waterproof and decoupling No. 8 photoelectric conversion contact

Abstract

The present invention relates to a waterproof and decoupling No. 8 photoelectric conversion contact, comprising a conversion component and a pin component. The conversion component comprises a housing, within which are arranged, from front to back, an electrical contact, a circuit board, a conversion module, a support sleeve, and a nut. The electrical contact is connected to the circuit board. One end of the conversion module is connected to the circuit board, and the other end is provided with an optical port for coupling with an optical fiber pin. The support sleeve is assembled at the rear of the conversion module, and the nut is threadedly connected to the outer circle of the rear of the support sleeve. The pin component comprises an outer housing, an optical fiber pin, and an optical cable, respectively assembled at both ends of the outer housing. After the pin component and the conversion component are mated, the optical fiber pin and the optical port are optically coupled. The pin component can be separated and decoupled from the conversion component body by screwing the nut. The present invention designs the No. 8 photoelectric conversion contact as an independently existing pin component and conversion component, greatly facilitating subsequent network maintenance, improving the waterproofness and maintainability of the contact component, and facilitating direct installation.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a waterproof and decoupling No. 8 photoelectric conversion contact. Background Art

[0002] Active connectors and components integrate optoelectronic conversion circuits into connectors. The connector connection interface is realized through electrical contacts, and the optical fiber connection interface is enclosed inside the shell of the connector accessories. This not only realizes optical fiber transmission, but also fundamentally eliminates the problem of light pollution, significantly improving the reliability of the optical network.

[0003] As military active optical cable assemblies expand their applications and formats, they are no longer limited to single-cable components. Networking with multiple terminals is increasingly required. In these networking scenarios, product maintainability is crucial. If a photoelectric conversion module fails at a terminal after a network is fully deployed, the ability to repair it without dismantling the entire network becomes crucial.

[0004] The No. 8 photoelectric conversion contact is a photoelectric conversion module that can realize the transmission or reception function placed inside the No. 8 differential contact, realizing the electrical interface-optical transmission at the contact level. Currently, the No. 8 photoelectric conversion contact exists in the form of an optical cable assembly, which has the following disadvantages:

[0005] (1) The internal optical fiber pin is usually sealed with glue and photoelectric conversion ( Figure 1 The optical port of the TOSA is fixed as an integrated coupling form, which cannot achieve decoupling of the optical fiber connection surface.

[0006] (2) Currently, the waterproofing of No. 8 photoelectric conversion contact is generally achieved by applying glue at the gaps. Its waterproofing stability and reliability are poor, and the use of glue for waterproofing has problems such as poor maintainability and easy creation of excess materials.

[0007] (3) Currently, the No. 8 photoelectric conversion contact meets the requirements of placement and fixation of the photoelectric conversion circuit by increasing the diameter of the tail of the contact. This requires that the size of the socket used to install the No. 8 photoelectric conversion contact be enlarged to match the size of the No. 8 photoelectric conversion contact for installation, resulting in a cumbersome installation process and many operating steps. Summary of the Invention

[0008] In order to facilitate the decoupling of the photoelectric conversion contact, improve the waterproofness and maintainability of the No. 8 photoelectric conversion contact, and facilitate direct installation, the present invention provides a waterproof and decoupling No. 8 photoelectric conversion contact.

[0009] The present invention is specifically implemented through the following technical solutions. According to the present invention, a module capable of multi-directional ventilation and heat dissipation includes a conversion component and a pin component. The conversion component includes a housing, with the electrical interface end of the conversion component defined as the front and the optical interface end as the rear. The housing is provided with an electrical contact, a circuit board, a conversion module, a support sleeve, and a nut from front to back. The electrical contact is fixed in the insulator component and connected to the circuit board. One end of the conversion module is connected to the circuit board, and the other end is provided with an optical port for coupling with an optical fiber pin in the pin component. The support sleeve is assembled at the rear of the conversion module and is located between the conversion module and the housing. The nut is mounted on the outer circle of the rear of the support sleeve and is threadedly connected to the support sleeve. A stopper sleeve is also assembled in the rear of the support sleeve, with one end of the stopper sleeve located on the inner wall of the support sleeve and the other end located on the inner wall of the nut.

[0010] The ferrule component at least includes an outer shell, an optical fiber ferrule and an optical cable, wherein the optical fiber ferrule is assembled at the front end of the outer shell and the optical cable is assembled at the rear end of the outer shell;

[0011] After the pin component and the conversion component are inserted into place, the optical fiber pin and the optical port are optically coupled to realize signal transmission; by screwing the nut, the pin component and the conversion component body can be separated to realize decoupling of the optical fiber pin and the optical port.

[0012] Through the above scheme, the present invention designs the No. 8 photoelectric conversion contact as a pin component and a conversion component that can exist independently. The pin component exists in the form of a jumper, and a photoelectric or electro-optical conversion module is installed in the conversion component to realize the conversion and transmission of photoelectric signals or electro-optical signals, realizing the electrical interface-optical transmission at the contact level. At the same time, when the product needs to be replaced due to a circuit board or conversion module failure, the pin component and the main body of the conversion component can be decoupled by screwing the nut, which greatly facilitates the subsequent networking and maintenance.

[0013] Furthermore, the conversion module is a TOSA module or a ROSA module.

[0014] Preferably, the pin component also includes a crimping sleeve and a tail sleeve. The crimping sleeve is assembled on the outer circle of the tail of the outer shell, and the tail sleeve is assembled outside the crimping sleeve. One end of the tail sleeve is interference fit with the outer circle of the outer shell, and the other end is wrapped around the outer circumference of the optical cable and interference fit with the optical cable, thereby achieving a waterproof seal at the tail of the pin component.

[0015] Furthermore, radial sealing is achieved between the support sleeve and the contact piece housing via a sealing ring I; axial sealing is achieved between the stop sleeve and the support sleeve via a sealing ring II.

[0016] Furthermore, a groove I is provided on the outer circumference of the front end of the support sleeve, and the sealing ring I is installed in this groove I; a boss is also provided on the inner wall of the support sleeve, and a groove II is provided on the side of the boss close to the retaining sleeve, and the sealing ring II is installed in this groove II. Through the above solution, the sealing and waterproof performance of the conversion component can be achieved.

[0017] Furthermore, the front end of the outer shell is connected to a pin flange, the outer circle of the pin flange is provided with a groove III, and a sealing ring III is installed in the groove III. After the pin component and the conversion component are inserted into place, the outer shell and the stop sleeve are sealed by the sealing ring III.

[0018] Preferably, a glue pouring groove is further provided at the tail of the stopper sleeve. After the pin component and the conversion component are inserted into place, the pin component and the conversion component are encapsulated and fixed by pouring glue in the glue pouring groove.

[0019] The sealing ring III and the glue sealing can ensure the sealing and waterproof performance of the pin component and the conversion component after insertion, thereby improving the waterproof performance of the No. 8 photoelectric conversion contact.

[0020] Preferably, a rotation-stop mechanism is further provided between the support sleeve and the stop sleeve, and when the nut is rotated to decouple, the rotation-stop mechanism prevents the stop sleeve and the pin component fixed to the stop sleeve from rotating.

[0021] Furthermore, the anti-rotation mechanism includes a convex key and a keyway cooperating with the convex key.

[0022] Furthermore, the convex key is arranged at the rear end of the supporting sleeve, and the keyway is arranged on the boss of the outer circle of the retaining sleeve.

[0023] The present invention has significant advantages and beneficial effects compared to the prior art. By utilizing the above technical solution, the waterproof and decoupled No. 8 photoelectric conversion contact of the present invention can achieve considerable technological advancement and practicality, and has a wide range of utilization value. It has at least the following advantages:

[0024] (1) The present invention designs the No. 8 photoelectric conversion contact as a pin component and a conversion component that can exist independently. The pin component exists in the form of a jumper, and a conversion module is installed in the conversion component. The conversion module can be a TOSA module or a ROSA module. If the conversion module is a TOSA module, the electrical signal is transmitted to the TOSA module through the circuit board, converted into an optical signal by the TOSA module, and then transmitted to the pin component through the optical port of the TOSA, thereby realizing the conversion and transmission of the electrical signal to the optical signal. If the conversion module is a ROSA module, the optical signal of the pin component is transmitted to the optical module through the optical fiber pin, converted into an electrical signal by the optical module, and finally transmitted through the electrical contact at the front end of the conversion component. Thus, the conversion and transmission of the optical signal to the electrical signal can be realized, and the electrical interface-optical transmission at the contact level is realized.

[0025] (2) The present invention can also decouple the pin component from the conversion component. When the product needs to be replaced due to a circuit board or conversion module failure, the pin component and the main body of the conversion component can be decoupled by screwing the nut, which greatly facilitates subsequent network maintenance.

[0026] (3) The present invention realizes the sealing performance of the conversion component alone through the sealing ring, and at the same time realizes the waterproof sealing of the pin component and the conversion component after being plugged together through the sealing ring and the glue encapsulation, thereby improving the waterproofness and reliability of the contact.

[0027] (4) The present invention can reduce the maximum outer diameter of the contact, and realize the installation interchangeability of the No. 8 photoelectric conversion contact and the standard No. 8 differential contact. There is no need to enlarge the size of the socket, and they can be directly matched and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the existing No. 8 photoelectric conversion contact;

[0029] Figure 2 Schematic diagram of the composition of the photoelectric conversion contact No. 8 of the present invention;

[0030] Figure 3 This is a schematic diagram of the conversion portion and the pin portion of the No. 8 photoelectric conversion contact of the present invention after being plugged together;

[0031] Figure 4 It is a schematic diagram of the decoupling of the conversion part and the pin part of the No. 8 photoelectric conversion contact of the present invention.

[0032]

Components and symbols

[0033] 1- shell; 12- shell body;

[0034] 2-electrical contact; 13-crimping sleeve;

[0035] 3-circuit board; 14-tail sheath;

[0036] 4-conversion module; 15-fiber optic pin;

[0037] 5-support sleeve; 16-optical cable;

[0038] 6-body part; 17-pin flange;

[0039] 7- optical port; 18- sealing ring III;

[0040] 8-Nut; 19-Glue filling groove;

[0041] 9-stop sleeve; 20-convex key;

[0042] 10- Sealing ring I; 21- Outer cylindrical boss of the stopper sleeve.

[0043] 11- Sealing ring II; DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments and drawings. Obviously, the embodiments described are part of the embodiments of the present invention, not all embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of protection claimed. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] like Figure 2 As shown, the photoelectric conversion contact of the present invention No. 8 includes a conversion component and a pin component, and the conversion component includes a housing 1. For the convenience of description, the electrical interface end of the conversion component is defined as the front ( Figure 2 The left end of the optical interface is the rear ( Figure 2 The right end of the housing), the interior of the housing is sequentially equipped with an electrical contact 2, a circuit board 3, an electro-optical or photoelectric conversion module 4 (hereinafter referred to as the "conversion module"), a support sleeve 5, and a nut 8 from front to back. The electrical contact is fixed in the insulator component 6, and the electrical contact is electrically connected to the circuit board. One end of the conversion module is electrically connected to the circuit board by pin welding, and the other end is provided with an optical port 7 for coupling with the optical fiber pin in the pin component. The support sleeve 5 is assembled at the tail of the conversion module and is located between the conversion module and the housing, and a radial seal is achieved between the support sleeve and the contact housing by a sealing ring Ⅰ11. The tail of the support sleeve is also equipped with a nut 8, which is mounted on the outer circle of the tail of the support sleeve and is threadedly connected to the support sleeve. The tail of the support sleeve is also equipped with a stop sleeve 9, one end of the stop sleeve is located on the inner wall of the support sleeve, and the other end is located on the inner wall of the tail of the nut, and an axial seal is achieved between the stop sleeve and the support sleeve by a sealing ring Ⅱ. A glue pouring groove 19 is further provided at the tail end of the stopper sleeve. After the pin component and the conversion component are inserted into place, the pin component and the conversion component are encapsulated and fixed by pouring glue in the glue pouring groove.

[0046] In one embodiment, a groove I is provided on the outer circle of the front end of the support sleeve, and a sealing ring I10 is installed in the groove I to achieve radial sealing between the support sleeve and the contact element housing.

[0047] In one embodiment, a boss is provided on the inner wall of the support sleeve, and a groove II is provided on the side of the boss close to the stop sleeve. The sealing ring II 11 is installed in the groove II to achieve axial sealing between the support sleeve and the stop sleeve.

[0048] In one embodiment, one end of the electrical contact in the front end of the contact housing is a socket structure, and the other end is a pin structure. Figure 2In the embodiment shown, one end of the electrical contact socket structure is located at the front end of the contact, and one end of the electrical contact pin structure is located inside the contact and is welded to the circuit board to achieve electrical connection.

[0049] The pin assembly includes at least an outer shell 12, a crimping sleeve 13, a tail sheath 14, an optical fiber pin 15, and an optical cable 16. The optical fiber pin is assembled inside the front end of the outer shell, the crimping sleeve is assembled on the outer diameter of the rear end of the outer shell, and the optical cable is assembled inside the outer shell and the rear end of the crimping sleeve. The optical fiber in the optical fiber pin is sealed and fixed by glue. The tail sheath is assembled outside the crimping sleeve, one end of which is interference fit with the outer diameter of the outer shell, and the other end is wrapped around the outer circumference of the optical cable and interference fits with the optical cable, achieving a waterproof seal at the rear end of the pin assembly. Figure 2 shown.

[0050] In one embodiment, the front end of the outer shell is connected to a pin flange 17 , an outer circle of the pin flange is provided with a groove III , and a sealing ring III 18 is installed in the groove III , but the present invention is not limited thereto.

[0051] When the aforementioned ferrule assembly and conversion component are mated, the front end of the ferrule assembly fits into the rear end of the conversion component, and the fiber ferrule mates with the optical port of the conversion module, enabling optical signal transmission. Once fully aligned, the fiber ferrule and optical port are optically coupled, and the ferrule assembly is radially sealed against the stopper sleeve within the conversion component via sealing ring III on the ferrule flange. Once fully aligned, the ferrule assembly and conversion component are sealed and secured via adhesive potting, located between the outer housing of the ferrule assembly and the adhesive potting groove of the stopper sleeve within the conversion component.

[0052] When the product needs to be replaced due to a failure of the functional circuit board or the conversion module, the pin component can be decoupled from the main body of the conversion component by screwing the nut. Figure 4 This is a schematic diagram after decoupling. Since the pin component and the retaining sleeve are fixed together by glue encapsulation, after the nut is unscrewed, the pin component is pulled out and the retaining sleeve is pulled out together with it, thereby realizing the decoupling and separation of the pin component and the main part of the conversion component.

[0053] Furthermore, a rotation-stop mechanism is provided between the support sleeve and the stop sleeve. When the nut is rotated, the rotation-stop mechanism can prevent the stop sleeve and the pin component fixed to the stop sleeve from rotating, thereby protecting the optical fiber pin and the optical fiber inside.

[0054] In one embodiment, the anti-rotation mechanism includes a convex key 20 and a keyway that cooperates with the convex key. Figure 4 In the embodiment shown, the convex key 20 is provided at the rear end of the support sleeve, and the keyway is provided on the boss 21 on the outer circumference of the retaining sleeve.

[0055] Through the above scheme, the present invention designs the No. 8 optoelectronic conversion contact as a separate pin component and a conversion component. The pin component exists in the form of a jumper, and the conversion component houses a conversion module, which can be either a TOSA or ROSA module. If the conversion module is a TOSA module, the electrical signal is transmitted via the circuit board to the TOSA module, where it is converted into an optical signal. This signal is then transmitted to the pin component through the TOSA's optical port. If the conversion module is a ROSA module, the optical signal from the pin component is transmitted via the optical fiber pin to the optical module, where it is converted into an electrical signal. Finally, the signal is transmitted through the electrical contact at the front end of the conversion component.

[0056] Through the above scheme, the present invention achieves contact-level electrical interface-optical transmission, while simultaneously decoupling the pin assembly from the conversion assembly, facilitating network maintenance. Sealing rings I and II provide a waterproof seal for the conversion assembly, while sealing ring III seals the mating point between the pin assembly and the conversion assembly. Furthermore, compared to existing technologies, the present invention's contacts can have a smaller maximum outer diameter, enabling interchangeability between size 8 optoelectronic conversion contacts and standard size 8 differential contacts, eliminating the need to enlarge the socket size and enabling direct installation.

[0057] The above description is merely an embodiment of the present invention and does not constitute any form of limitation to the present invention. The present invention may also have other forms of embodiments based on the above structures and functions, which are not listed here one by one. Therefore, any simple modification, equivalent changes, and modifications made to the above embodiments by any person skilled in the art in accordance with the technical essence of the present invention without departing from the scope of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A waterproof and decoupling No. 8 photoelectric conversion contact, characterized in that The invention comprises a conversion component and a pin component, wherein the conversion component comprises a housing (1), wherein the electrical interface end of the conversion component is defined as the front and the optical interface end thereof is defined as the rear, wherein an electrical contact (2), a circuit board (3), a conversion module (4), a support sleeve (5) and a nut (8) are sequentially arranged in the housing from front to rear, wherein the electrical contact is fixed in an insulator component (6) and connected to the circuit board, wherein one end of the conversion module is connected to the circuit board and the other end is provided with an optical port (7) for coupling with an optical fiber pin in the pin component; the support sleeve (5) is assembled at the rear end of the conversion module and is located between the conversion module and the housing, and the nut is mounted on the outer circle of the rear end of the support sleeve and is threadedly connected to the support sleeve; a stop sleeve (9) is also assembled in the rear end of the support sleeve, wherein one end of the stop sleeve is located on the inner wall of the support sleeve and the other end is located on the inner wall of the nut; and a glue filling groove (19) is also provided at the rear end of the stop sleeve; The pin assembly at least comprises an outer shell (12), an optical fiber pin (15) and an optical cable (16), wherein the optical fiber pin is assembled at the front end of the outer shell and the optical cable is assembled at the rear end of the outer shell; When the pin component and the conversion component are plugged in, the front end of the pin component is inserted into the rear end of the conversion component so that the optical fiber pin and the optical port are optically coupled to realize signal transmission; after the pin component and the conversion component are plugged in place, the pin component and the conversion component are encapsulated and fixed by glue filling at the glue filling groove (19); When a circuit board or conversion module fails and needs to be replaced, the pin component can be separated and decoupled from the conversion component body by screwing the nut. Since the pin component and the retaining sleeve are fixed together by glue encapsulation, after the nut is unscrewed, the retaining sleeve is pulled out together with the pin component, realizing the decoupling of the optical fiber pin and the optical port; A rotation-stop mechanism is also provided between the support sleeve and the stop sleeve. When the rotating nut is decoupled, the stop mechanism prevents the stop sleeve and the pin component fixed to the stop sleeve from rotating. The rotation-stop mechanism includes a convex key (20) and a keyway matched with the convex key (20). The convex key (20) is provided at the rear end of the support sleeve, and the keyway is provided on a boss (21) on the outer circle of the stop sleeve.

2. The waterproof and decoupling No. 8 photoelectric conversion contact according to claim 1, characterized in that The conversion module is a TOSA module or a ROSA module.

3. The waterproof and decoupling No. 8 photoelectric conversion contact according to claim 1 or 2, characterized in that The pin component also includes a crimping sleeve (13) and a tail sheath (14), wherein the crimping sleeve is assembled on the outer circle of the tail of the outer shell, and the tail sheath is assembled outside the crimping sleeve, one end of the tail sheath is interference-fitted with the outer circle of the outer shell, and the other end is wrapped around the outer circumference of the optical cable and interference-fitted with the optical cable, thereby achieving a waterproof seal at the tail of the pin component.

4. The waterproof and decoupling No. 8 photoelectric conversion contact according to claim 1 or 2, characterized in that A radial seal is achieved between the support sleeve and the housing (1) via a sealing ring I (10); an axial seal is achieved between the stop sleeve and the support sleeve via a sealing ring II.

5. The waterproof and decoupling No. 8 photoelectric conversion contact according to claim 4, characterized in that A groove I is provided on the outer circle of the front end of the support sleeve, and the sealing ring I (10) is installed in the groove I; a boss is also provided on the inner wall of the support sleeve, and a groove II is provided on the side of the boss close to the stop sleeve, and the sealing ring II (11) is installed in the groove II.

6. The waterproof and decoupling No. 8 photoelectric conversion contact according to claim 1 or 2, characterized in that The front end of the outer shell is connected to a pin flange (17), the outer circle of the pin flange is provided with a groove IIII, and a sealing ring IIII (18) is installed in the groove IIII. After the pin component and the conversion component are inserted into place, the outer shell and the stop sleeve are sealed by the sealing ring III (18).

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