A spread beam type through-pod connector and connector assembly

CN123029663APending Publication Date: 2026-11-03CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
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Patent Information

Application Number
CN202611164641.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-03
Publication Date
2026-11-03

AI Technical Summary

Technical Problem

Existing through-cabin connectors are too long to meet the installation requirements of small spaces, the double-ended pin components cannot float, resulting in increased link loss, and frequent jamming during plug-connector mating.

Method used

An expanded-beam type through-chamber connector is adopted, and a third lens and sealing structure are used to replace the double-ended pin components, shortening the connector length and reducing the number of mating points. The lens sealing structure avoids floating loss and jamming.

Benefits of technology

It meets the needs of installation in small spaces, reduces link loss, avoids stuttering during the insertion process, and improves optical transmission efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an expansion beam type cabin-penetrating connector, which comprises a socket shell, a connecting panel is arranged on the outer side of the socket shell, a first sealing ring is arranged on the wall surface of the connecting panel, a third lens is arranged in the interior of the socket shell, and a sealing structure is arranged between the outer wall of the third lens and the inner wall of a second mounting hole on the socket shell. The expansion beam type cabin-penetrating connector can simplify the structure of the cabin-penetrating connector by means of the third lens, shorten the axial length of the connector, meet the installation requirement of a small space, and avoid the phenomenon that the light transmission link loss is increased due to the fact that the double-end pin component cannot float when the double-end pin component and the socket shell extrude the second sealing ring. When the head seat is docked, the second lens and the third lens of the two second pin ends are docked, and there is no pin docking, compared with the double-end pin component, the docking points are reduced, so that the link loss after the head seat is docked is reduced, and the phenomenon that the plug-in process is stuck is avoided.
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Description

Technical Field

[0001] This invention belongs to the technical field of fiber optic connectors, specifically relating to a beam-expanding through-cell connector and connector assembly. Background Technology

[0002] In existing technologies, through-cabin connectors generally use double-ended pin components; please refer to [link / reference]. Figure 1 Specifically, it includes a socket housing 20, with a connecting panel 201 and a fastening nut 202 on the outer side of the socket housing. A first sealing ring 203 is provided on the wall surface of the connecting panel facing the fastening nut. After the socket housing is passed through the equipment panel from one side axially, the fastening nut is rotated until the first sealing ring is clamped between the wall surface of the equipment panel and the wall surface of the connecting panel, completing the assembly of the through-hole connector on the equipment. The interior of the socket housing is provided with several double-ended pin components 21. Please refer to [link to relevant documentation]. Figure 2 The double-ended pin assembly includes a support sleeve 214. A first pin 211 and a first flange 212 are provided on both sides of the support sleeve. A second sealing ring 213 is provided between one of the first flanges and the support sleeve. A first sleeve 216 is inserted into the end of the first flange, and a first lens 215 is provided inside the first sleeve away from the first flange. The mating ends of the first pins are inserted into the corresponding first sleeves. After several double-ended pin assemblies are inserted into the socket housing along the mating direction, two pressure plates 22 are used for axial positioning. Finally, the two pressure plates are fixed to the socket housing with fastening screws 23. Please refer to [link to relevant documentation]. Figure 3 The plug connector 1 adapted to the aforementioned through-cabin connector 2 specifically includes a plug housing 10, a locking cap 11 on the outer side of the plug housing, a plug contact 12 and an alignment sleeve 13 inside the plug housing, the second pin 121 of the plug contact being inserted into the corresponding second sleeve 122, and a second lens 123 being disposed inside the second sleeve, the second sleeve entering the aforementioned alignment sleeve from one side. By inserting the two plug connectors 1 onto the two ends of the through-cabin connector 2 respectively, a connector assembly is obtained, such as... Figure 4 As shown, in the mating state, the first sleeves at both ends of the double-ended pin component enter the centering sleeve of the corresponding plug connector from the other side to complete the mating of the double-ended pin component and the plug contact, realizing the optical signal transmission between the two plug connectors. The two locking caps lock with the corresponding ends of the through-hole connector to keep the double-ended pin component and the plug contact in the mating state.

[0003] The problems with the aforementioned through-cabin connector are as follows: (1) The double-ended pin assembly inside the socket housing is long due to structural and processing requirements, resulting in a large length space required for the through-cabin connector, which cannot meet the installation requirements of small spaces; (2) When the two ends of the through-cabin connector are connected to the two plug connectors, the first pins at both ends of the double-ended pin assembly are connected to the second pins of the corresponding plug contacts, resulting in two connection point losses, which increases the loss of the optical transmission link and fails to meet the link loss requirements; (3) The double-ended pin assembly and the pressure plate inside the socket housing are sealed by squeezing the second sealing ring, which prevents the double-ended pin assembly from floating, further increasing the loss of the optical transmission link; (4) When the two ends of the through-cabin connector are connected to the two plug connectors, the guiding ability of the centering sleeve is limited, and the two ends of the double-ended pin assembly will jam when entering the centering sleeve. Summary of the Invention

[0004] To address the technical problems of existing through-cabin connectors, such as their inability to meet the requirements of small-space installation, increased link loss due to the inability of the two mating points and double-ended pin components to float, and jamming during head-and-base mating, the present invention aims to propose a beam-expanding through-cabin connector. This beam-expanding through-cabin connector has a smaller length dimension, and when the two plug connectors are mated with the two ends of the through-cabin connector to form a connector assembly, it can reduce the number of mating points, thereby reducing link loss.

[0005] The objective of this invention is achieved by the following technical solution: a beam-expanding type through-cabin connector, including a socket housing 20, a connecting panel 201 disposed on the outer side of the socket housing, a first sealing ring 203 disposed on the wall surface of the connecting panel, a third lens 30 disposed inside the socket housing, and a sealing structure disposed between the outer wall of the third lens and the inner wall of the second mounting hole on the socket housing.

[0006] By employing the aforementioned technical solution, the expanded-beam type through-cabin connector of the present invention has the following beneficial effects:

[0007] (1) The lens sealing structure composed of the third lens and the sealing structure can simplify the structure of the through-chamber connector, shorten the axial length of the connector, and meet the installation requirements of small space.

[0008] (2) Replacing the double-ended pin component with a third lens can avoid the phenomenon that the double-ended pin component cannot float when the second sealing ring is squeezed between the double-ended pin component and the socket housing, which leads to an increase in optical transmission link loss.

[0009] (3) When the two plug connectors are mated with the two ends of the expanded-type through-canopy connector, the two second pins are inserted into the socket housing from opposite sides in the axial direction, and the second lens and the third lens at their ends are mated. There is no pin mating situation. Compared with the double-ended pin component, the number of mating points is reduced, thereby reducing the link loss after the two plug connectors are mated with the expanded-type through-canopy connector.

[0010] (4) The expansion type through-chamber connector adopts a lens sealing structure composed of a third lens and a sealing structure. No contact parts are assembled, and there is no situation where two contact parts are mated. This avoids the phenomenon that the double-end pin parts of the through-chamber connector cannot enter due to insufficient guidance of the centering sleeve of the plug contact parts, thereby avoiding the phenomenon of jamming during the mating process.

[0011] Furthermore, a socket inner housing 204 is disposed within the second mounting hole of the socket housing, and a third lens is disposed within the first mounting hole of the socket inner housing. Sealing structures are provided between the outer wall of the third lens and the inner wall of the first mounting hole, and between the outer wall of the socket inner housing and the inner wall of the second mounting hole. The socket inner housing allows the lens to be assembled in the external environment of the connector, facilitating subsequent assembly of the third lens within the socket housing.

[0012] Furthermore, the sealing structure is one of the following: rubber ring sealing structure, welding structure, sintering structure, adhesive structure, or potting structure.

[0013] Furthermore, the rubber ring sealing structure includes a plurality of third sealing rings 207 distributed along the axial direction.

[0014] Furthermore, the connecting panel located outside the first sealing ring is provided with several circumferentially distributed connecting holes 2011 for engaging with fasteners to assemble the expanded-type through-cell connector onto the equipment.

[0015] Furthermore, the socket housings located on both sides of the third lens form mating cavities 205. An interface sealing body 206 is provided at the bottom of the mating cavity, and a through hole is provided in the middle of the interface sealing body for the mating end of the plug connector to pass through. When the plug connector and the extended-type through-cavity connector are mated, the interface sealing body can seal the mating end of the plug connector and the bottom of the mating cavity, achieving a seal between the mating surfaces of the head-and-base connectors.

[0016] The present invention also achieves its objective by the following technical solution: a connector assembly, including a plug connector 1, the plug connector including a plug housing 10 and a plug inner housing 14, a plurality of third mounting holes on the plug inner housing respectively inserting corresponding plug contacts 12, the plug contacts including a second flange 124, a second pin 121 inserted at the end of the second flange, the mating end of the second pin inserted into a second sleeve 122 and a second lens 123 disposed inside the second sleeve, the two ends of the beam-expanding through-cell connector 2' respectively mating and connecting with the plug connector.

[0017] Furthermore, a first axially extending key is provided on one of the outer wall of the second flange and the inner wall of the third mounting hole, and a first keyway adapted to the aforementioned first axially extending key is provided on the other. The cooperation between the first axially extending key and the first keyway can not only maintain the plug contact and the plug inner housing in a stable position in the circumferential direction, but also play a guiding role when the plug contact is installed into the third mounting hole.

[0018] Furthermore, one of the inner wall of the socket housing's mating cavity and the outer wall of the plug housing is provided with a plurality of second keyways distributed circumferentially, and a plurality of second protruding keys adapted to the aforementioned second keyways. At least one second keyway is distinct from the remaining second keyways, and at least one second protruding key is distinct from the remaining second protruding keys. Through the anti-misalignment of the second keyways and the second protruding keys, it is ensured that after the plug connector is inserted into both ends of the expansion-type through-cell connector, the plurality of plug contacts in the two plug connectors transmit optical signals according to the preset hole positions, avoiding lateral misalignment of the plug contacts on both sides, and enabling radial anti-rotation between the plug connector and the through-cell connector.

[0019] Furthermore, a locking cap 11 is provided on the outer side of the plug housing for locking with the end of the socket housing.

[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a cross-sectional schematic diagram of a compartment connector in the prior art.

[0022] Figure 2 yes Figure 1 A schematic diagram of the double-ended pin component.

[0023] Figure 3 Is with Figure 1 The diagram shows a cross-sectional view of the plug connector that fits the through-cabin connector.

[0024] Figure 4 yes Figure 1 The shown cabin connector and Figure 3 The diagram shows a cross-sectional view of the plug connector in the mating position.

[0025] Figure 5 This is an exploded view of the first embodiment of a beam-expanding type through-cabin connector of the present invention.

[0026] Figure 6 yes Figure 5 A frontal view diagram.

[0027] Figure 7 This is a cross-sectional schematic diagram of the first embodiment of a beam-expanding type through-cabin connector of the present invention.

[0028] Figure 8 yes Figure 5 A left-side view diagram.

[0029] Figure 9 yes Figure 5 A schematic diagram showing the connection between the third lens and the inner housing of the socket.

[0030] Figure 10 Is with Figure 5 An exploded view of the plug connector adapted to the through-cabin connector shown.

[0031] Figure 11 Is with Figure 5 The diagram shows a cross-sectional view of the plug connector adapted to the through-cabin connector.

[0032] Figure 12 yes Figure 10 Exploded view of the connector contacts.

[0033] Figure 13 yes Figure 10 A cross-sectional view of the connector contacts.

[0034] Figure 14 yes Figure 10 A left-side view diagram.

[0035] Figure 15 yes Figure 5 The beam-expanding trans-cabin connector shown is... Figure 10 The diagram shows the plug connector in a detached state.

[0036] Figure 16 yes Figure 15 A frontal view diagram.

[0037] Figure 17 yes Figure 5 The beam-expanding trans-cabin connector shown is... Figure 10 The diagram shows a cross-sectional view of the plug connector in the mating position.

[0038] Figure 18 This is a cross-sectional schematic diagram of a second embodiment of a beam-expanding type through-cabin connector of the present invention.

[0039] Wherein: 1-Plug connector, 10-Plug housing, 101-Second key, 11-Locking cap, 12-Plug contact, 121-Second pin, 122-Second sleeve, 123-Second lens, 124-Second flange, 1241-First key, 13-Alignment sleeve, 2-Through-cabin connector, 2'-Expanded through-cabin connector, 20-Socket housing, 201-Connecting panel, 202-Fasting nut, 203 - First sealing ring, 204- Inner housing of socket, 2041- First mounting hole, 205- Interlocking cavity, 2051- Second keyway, 206- Interface sealing body, 207- Third sealing ring, 208- Second mounting hole, 21- Double-ended pin assembly, 211- First pin, 212- First flange, 213- Second sealing ring, 214- Support sleeve, 215- First lens, 216- First sleeve, 30- Third lens. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Furthermore, the terms "first or I," "second or II," "third or III," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first or I," "second or II," or "third or III" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] This invention discloses a beam-expanding through-cabin connector, comprising a socket housing, a connecting panel on the outer side of the socket housing, and a first sealing ring on the wall of the connecting panel. The beam-expanding through-cabin connector is assembled on the equipment by passing the socket housing through the equipment panel axially from one side and using fasteners for positioning. At this time, the first sealing ring is sandwiched between the wall of the equipment panel and the wall of the connecting panel. Based on the aforementioned structure, the beam-expanding through-cabin connector also includes a third lens inside the socket housing, and a sealing structure between the third lens and the mounting hole on the socket housing. This invention uses a third lens to replace the double-ended pin component, avoiding the increased optical transmission link loss caused by the double-ended pin component's inability to float when the second sealing ring is squeezed between it and the socket housing. Simultaneously, the lens sealing structure formed by the third lens and the sealing structure simplifies the structure of the through-cabin connector, shortens the axial length of the connector, meets the installation requirements of small spaces, and facilitates the connection between the two plug connectors and the beam-expanding through-cabin connector. When the two ends are mated, the two second pins are inserted into the socket housing from opposite sides in the axial direction, and the second lens at their ends mates with the third lens. There is no pin mating. Compared with the double-ended pin assembly, the number of mating points is reduced, thereby reducing the link loss after the two plug connectors are mated with the expansion-type through-cabin connector. In addition, the expansion-type through-cabin connector adopts a lens sealing structure composed of a third lens and a sealing structure, and no contact parts are assembled. There is no mating of two contact parts, which avoids the phenomenon that the double-ended pin assembly of the through-cabin connector cannot enter due to insufficient guidance of the centering sleeve of the plug contact parts, thereby avoiding the phenomenon of jamming during the mating process.

[0045] Example 1

[0046] Please see Figures 5 to 7This is a first embodiment of an expanded-type through-hole connector of the present invention. The expanded-type through-hole connector of the present invention includes a socket housing 20, a connecting panel 201 disposed on the outer side of the socket housing, and a first sealing ring 203 disposed on the wall surface of the connecting panel. After the socket housing passes through the device panel from one axial direction, fasteners are used to limit its position, thus completing the assembly of the expanded-type through-hole connector on the device. At this time, the first sealing ring 203 is sandwiched between the wall surface of the device panel and the wall surface of the connecting panel. Based on the aforementioned structure, a second mounting hole 208 extending axially (i.e., in the mating direction) is provided inside the socket housing. A socket inner housing 204 is disposed within this second mounting hole, and a sealing structure is provided between the inner wall of the second mounting hole and the outer wall of the plug inner housing; please also refer to... Figure 9 The inner shell of the socket also has a first mounting hole 2041 extending axially. A third lens 30 is installed in the first mounting hole, and a sealing structure is also provided between the outer wall of the third lens and the inner wall of the mounting hole. With the aforementioned design, after the expansion-type through-cabin connector described in this embodiment is mated with the two plug connectors, the loss is only due to the second pin of the plug contact and the third lens, reducing the number of mating points and thus reducing product loss after the plugs at both ends are mated with the through-cabin connector.

[0047] Please see Figure 5 and Figure 8 In this embodiment, a plurality of connecting holes 2011 distributed circumferentially are provided on the connecting panel located outside the first sealing ring. Similarly, a plurality of correspondingly distributed second connecting holes are also provided on the device panel. The expanded-type through-chamber connector is assembled onto the device by means of fasteners (such as fastening studs and nuts) passing through the connecting holes and second connecting holes. Specifically, the connecting panel is a square connecting panel with a connecting hole at each of its four corners. Furthermore, the connecting holes are oblong holes, which can compensate for machining errors during the connection of the connecting panel and the device panel.

[0048] In this embodiment, the third lens 30 is first placed in the first mounting hole on the inner housing 204 of the socket and welded. Then, the inner housing of the socket is placed in the second mounting hole on the socket housing 20 and welded. With the help of the inner housing of the socket, the lens can be assembled in the external environment of the connector, which is beneficial for the subsequent assembly of the third lens in the socket housing. When welding the inner housing of the socket to the socket housing, in order to facilitate the welding process, the inner housing of the socket can be axially limited in the socket housing first. One feasible axial limiting method is as follows: a limiting platform is set on the inner wall of one end of the second mounting hole on the socket housing, and a step is set on the outer wall of the end of the inner housing of the socket. The inner housing of the socket is inserted into the interior of the second mounting hole from the other end until the step and the limiting platform form a stop fit. Then, a limiting member (such as a retaining ring) is set at the other end of the second mounting hole.

[0049] Please see Figure 7The socket housing located on both sides of the third lens forms a mating cavity 205. An interface seal 206 is provided at the bottom of the mating cavity. A through hole is provided in the middle of the interface seal for the mating end of the plug connector to pass through. When the plug connector and the expansion-type through-hole connector are mated, the interface seal can seal the mating end of the plug connector and the bottom of the mating cavity, achieving a seal between the mating surfaces of the head-and-base connectors. Furthermore, a groove is provided on the inner wall of the socket housing at the bottom of the mating cavity, and the interface seal is inserted into the aforementioned groove to achieve axial restraint.

[0050] Please see Figures 10 to 13 The plug connector adapted to the expanded-beam type through-cabin connector proposed in this embodiment includes a plug housing 10, a locking cap 11 (which can be a rotary locking cap or a push-pull locking cap) on the outside of the plug housing, and a plug inner housing 14 inside the plug housing. Corresponding plug contacts 12 are respectively installed in several third mounting holes on the plug inner housing. Each plug contact includes a second flange 124, with a second pin 121 inserted into the end of the second flange. The mating end of the second pin is inserted into a second sleeve 122, and a second lens 123 is disposed inside the second sleeve. Figure 10 As shown, during assembly, several plug contacts are inserted into their respective third mounting holes until the left end of the flange forms a stop fit with the step in the third mounting hole. Then, the plug inner housing is inserted into the fourth mounting hole on the plug housing from left to right until the right end of the plug inner housing forms a stop fit with the right end of the fourth mounting hole. Finally, the plug inner housing is connected to the plug housing. One feasible connection method is to set a limiting element (e.g., a retaining ring) at the left end of the fourth mounting hole. Furthermore, an anti-rotation structure is provided between the plug contacts and the third mounting holes on the plug inner housing. Specifically, a first protruding key 1241 is provided on the outer wall of the second flange of the plug contact, and a first keyway adapted to the aforementioned first protruding key is provided on the inner wall of the third mounting hole. The cooperation of the first protruding key and the first keyway can not only keep the plug contacts and the plug inner housing in a stable position in the circumferential direction, but also guide the plug contacts when they are inserted into the third mounting hole.

[0051] A mis-proof mechanism is provided between the socket housing of the expanded-type through-cell connector and the plug housing of the plug connector. Specifically, please refer to: Figure 8 and Figure 14 The socket housing has a plurality of second keyways 2051 extending axially along the circumferential direction on the inner wall of the mating cavity, and the plug housing has a plurality of second protruding keys 101 distributed circumferentially and adapted to the aforementioned second keyways on the outer wall. At least one second keyway is distinct from the remaining second keyways, and at least one second protruding key is distinct from the remaining second protruding keys. For example: Figure 8 In the orientation shown, compared to the remaining four second keyways, the second keyway located on the upper side is wider, correspondingly, Figure 14In the orientation shown, the second convex key located on the upper side is wider than the remaining four second convex keys. Through the anti-misalignment of the second keyway and the second convex key, it is ensured that after the plug connector is inserted into both ends of the expansion type through-hole connector, several plug contacts in the two plug connectors transmit optical signals according to the preset hole positions, avoiding lateral misalignment of the plug contacts on both sides, and enabling radial anti-rotation between the plug connector and the through-hole connector.

[0052] Please see Figures 15 to 16 This embodiment also proposes a connector assembly, including the aforementioned expanded-beam type through-cabin connector 2', with both ends of the expanded-beam type through-cabin connector 2' respectively connected to... Figure 11 The plug connector 1 shown is a mating connection, with the left end of the plug inner housing 14 abutting against the socket inner housing 204, achieving axial positioning of the head-and-seat connector during mating. For details on the connector assembly, please refer to... Figure 17 The light beam is emitted in parallel from the plug contact 12 of one plug connector to the third lens 30 in the beam-expanding through-cabin connector, and then transmitted in parallel through the third lens 30 to the plug contact 12 of another plug connector, thus realizing the transmission of optical signals. Since there is no contact docking on the optical transmission link, the number of docking points is reduced, thereby reducing product loss after the plugs at both ends are docked with the through-cabin socket.

[0053] Example 2

[0054] Please see Figure 18 The difference between this embodiment and Embodiment 1 is that the sealing structure between the outer wall of the socket inner housing 204 and the inner wall of the second mounting hole on the socket housing 20 is a rubber ring sealing structure. The rubber ring sealing structure includes two third sealing rings 207 distributed along the axial direction (the number of third sealing rings can be adjusted according to the actual working conditions). Of course, other types of sealing structures can be used, such as sintered structures and potting structures.

[0055] Example 3

[0056] The difference between this embodiment and Embodiment 1 is that the sealing structure between the outer wall of the third lens and the inner wall of the first mounting hole on the inner housing of the socket is one of the following: a rubber ring sealing structure, a sintering structure, or a potting structure.

[0057] Example 4

[0058] The difference between this embodiment and Embodiment 1 is that a fastening nut is also provided on the outer side of the socket housing, and a first sealing ring is provided on the wall surface of the connecting panel facing the fastening nut. After the socket housing passes through the equipment panel from one side in the axial direction, the fastening nut is rotated until the first sealing ring is clamped between the wall surface of the equipment panel and the wall surface of the connecting panel, thus completing the assembly of the through-hole connector on the equipment. At this time, the connecting hole on the connecting panel can be omitted, and there is no need to process a second connecting hole on the equipment panel.

[0059] Example 5

[0060] The difference between this embodiment and Embodiment 1 is that the anti-rotation structure includes a first convex key disposed on the inner wall of the third mounting hole on the inner housing of the plug, and a first keyway disposed on the outer wall of the second flange of the plug contact.

[0061] Example 6

[0062] The difference between this embodiment and Embodiment 1 is that the cross-section of the second keyway located on the upper side is triangular, while the cross-sections of the remaining four second keyways are rectangular, so that at least one second keyway is distinct from the remaining keyways, and at least one second convex key is distinct from the remaining convex keys. Furthermore, the error-proof structure includes a second convex key disposed on the inner wall of the mating cavity of the socket housing, and a second keyway disposed on the outer wall of the plug housing.

[0063] Example 7

[0064] The difference between this embodiment and any of the aforementioned embodiments is that a third lens is disposed within the second mounting hole of the socket housing, and the sealing structure between the outer wall of the third lens and the inner wall of the second mounting hole is one of the following: welding structure, sintering structure, potting structure, or rubber ring sealing structure. Compared to the method of first installing the third lens on the inner housing of the socket and then inserting it into the socket housing, the assembly efficiency of this embodiment is reduced. When the two ends of the expanded-type through-cell connector described in this embodiment are respectively mated with the plug connector, the end of the plug inner housing abuts against the socket housing surrounding the second mounting hole.

[0065] The above description is merely a preferred embodiment of the present invention. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments without departing from the scope of the present invention and based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A bundle-expanding type through-cell connector, comprising a socket housing (20), a connecting panel (201) disposed on the outer side of the socket housing, and a first sealing ring (203) disposed on the wall surface of the connecting panel, characterized in that, A third lens (30) is provided inside the socket housing, and a sealing structure is provided between the outer wall of the third lens and the inner wall of the second mounting hole (208) on the socket housing.

2. The expanded-beam type through-cabin connector according to claim 1, characterized in that, A socket inner housing (204) is provided in the second mounting hole of the socket housing, and a third lens is provided in the first mounting hole (2041) of the socket inner housing. A sealing structure is provided between the outer wall of the third lens and the inner wall of the first mounting hole, and between the outer wall of the socket inner housing and the inner wall of the second mounting hole.

3. A beam-expanding type through-cabin connector according to claim 1 or 2, characterized in that, The sealing structure can be one of the following: rubber ring sealing structure, welding structure, sintering structure, adhesive structure, or potting structure.

4. The expanded-beam type through-cabin connector according to claim 3, characterized in that, The rubber ring sealing structure includes a number of third sealing rings (207) distributed along the axial direction.

5. A beam-expanding type through-cabin connector according to claim 1, characterized in that, A number of connection holes are provided on the connection panel located outside the first sealing ring, which are distributed circumferentially and used to mate with fasteners to assemble the expanded-type through-cell connector onto the equipment (2011).

6. A beam-expanding type through-cabin connector according to claim 1, characterized in that, The socket housing located on both sides of the third lens forms a mating cavity (205). An interface sealing body (206) is provided at the bottom of the mating cavity, and a through hole is provided in the middle of the interface sealing body for the mating end of the plug connector to pass through.

7. A connector assembly, comprising a plug connector (1), the plug connector comprising a plug housing (10) and a plug inner housing (14), wherein corresponding plug contacts (12) are respectively inserted into a plurality of third mounting holes on the plug inner housing, the plug contacts comprising a second flange (124), a second pin (121) being inserted into the end of the second flange, the mating end of the second pin being inserted into a second sleeve (122), and a second lens (123) being disposed inside the second sleeve, characterized in that, The two ends of the expanded-beam type through-cabin connector (2') according to any one of claims 1-6 are respectively connected to the plug connector.

8. A connector assembly according to claim 7, characterized in that, The outer wall of the second flange and the inner wall of the third mounting hole are provided with a first convex key (1241) extending axially on one of them, and a first keyway adapted to the aforementioned first convex key on the other.

9. A connector assembly according to claim 7, characterized in that, The inner wall of the socket housing and the outer wall of the plug housing are provided with a plurality of second keyways (2051) distributed circumferentially, and a plurality of second convex keys (101) adapted to the aforementioned second keyways. At least one second keyway is different from the remaining second keyways, and at least one second convex key is different from the remaining second convex keys.

10. A connector assembly according to claim 7, characterized in that, A locking cap (11) is provided on the outside of the plug housing for locking with the end of the socket housing.