Watertight connector

Abstract

The utility model provides a watertight connector. The socket comprises a socket shell, a connecting end and a plugging end are formed on the socket shell, and an equipment cabin is formed between the connecting end and the plugging end in the socket shell; the connecting end is used for connecting a photoelectric composite cable, the plugging end is provided with an optical fiber connector and a power supply connector, the tail end of the photoelectric composite cable is located in the equipment cabin, an optical fiber bundle on the photoelectric composite cable is connected with the optical fiber connector, and a wire on the photoelectric composite cable is connected with the power supply connector; a pouring cavity is formed in the end, close to the connecting end, in the equipment cabin, at least part of the tail end, wrapped with the Kevlar layer, of the photoelectric composite cable is located in the pouring cavity, and epoxy resin is poured into the pouring cavity. According to the watertight connector provided by the invention, the connection structure of the photoelectric composite cable can be simplified.

Description

Technical Field

[0001] This application belongs to the technical field of electrical connectors, and more particularly, relates to a watertight connector. Background Art

[0002] ROV (Remote Operated Vehicle) usually requires an electro-optical composite cable to meet technical requirements such as high flexibility, bending resistance, waterproofing, and anti-aging while realizing functions such as power supply, signal transmission, and data communication.

[0003] However, most of the electro-optical composite connectors on the current conventional ROV electro-optical composite cables are separate fiber optic connectors and power connectors. When connecting to the ROV, a wiring and waterproof structure also needs to be added to the electro-optical composite cable, which also involves complex processes such as fiber optic docking, resulting in a complex connection structure and inconvenient daily use and maintenance. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a watertight connector to solve the technical problems of complex connection structure and inconvenient use of the connectors of electro-optical composite cables in the prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiments of this application is to provide a watertight connector, which includes:

[0006] A socket housing, on which a connection end and a plug-in end are formed. An equipment compartment is formed inside the socket housing between the connection end and the plug-in end; the connection end is used to connect an electro-optical composite cable, and a fiber optic connector and a power supply connector are arranged on the plug-in end. The end of the electro-optical composite cable is located in the equipment compartment, and the fiber optic bundle on it is connected to the fiber optic connector, and the wire on it is connected to the power supply connector;

[0007] A perfusion cavity is formed at one end of the equipment compartment close to the connection end. At least a part of the end of the electro-optical composite cable coated with a Kevlar layer is located in the perfusion cavity, and epoxy resin is perfused in the perfusion cavity.

[0008] Optionally, the perfusion cavity is in a constricted shape, and the diameter of the perfusion cavity on the side close to the connection end is smaller than the diameter of the perfusion cavity on the side close to the plug-in end.

[0009] Optionally, the socket housing includes a gland, a socket outer shell, and a plug-in board; the gland is threadedly connected to an opening at one end of the socket outer shell; the plug-in board is fixedly arranged at the opening at the other end of the socket outer shell, and the plug-in end is arranged on the plug-in board; the equipment compartment is formed inside the enclosed space formed by the gland, the socket outer shell, and the plug-in board; the optoelectronic composite cable passes through the gland and the end is located in the equipment compartment.

[0010] Optionally, the plug-in board and the socket housing are fixedly connected by bolts.

[0011] Optionally, an optical fiber coupler is arranged on the plug-in board, and the optical fiber coupler is connected to the optical fiber connector.

[0012] Optionally, the plug-in board is arranged inside the opening of the socket outer shell and is spaced from the opening of the socket outer shell by a height distance; at least two sealing grooves are arranged along the axial direction on the outer peripheral wall of the socket outer shell, and the distance between the sealing groove and the opening of the socket outer shell is less than the height distance between the plug-in board and the opening of the socket outer shell; a sealing ring is arranged in the sealing groove.

[0013] Optionally, a flange is arranged on the socket outer shell, and the distance between the flange and the opening of the socket outer shell is greater than the distance between the sealing groove and the opening of the socket outer shell.

[0014] Optionally, an anti-fooling structure is arranged on one side of the plug-in board facing the opening of the socket outer shell, and the optical fiber connector and the power supply connector are respectively arranged on the anti-fooling structure.

[0015] Optionally, the optoelectronic composite cable further includes a strengthening core, and the strengthening core, the optical fiber bundle, and the wire are all covered by the Kevlar layer.

[0016] Optionally, an inner lining layer is further covered outside the wire, and the inner lining layer is made of non-woven fabric material.

[0017] The watertight connector provided by the embodiment of the present application has at least the following beneficial effects:

[0018] By arranging an equipment compartment in the socket housing and arranging an optical fiber connector and a power supply connector on the plug-in end of the socket housing, in this way, the optical fiber bundle and the wire at the end of the optoelectronic composite cable can be respectively connected to the optical fiber connector and the power supply connector in the equipment compartment, so that the plug-in end on the socket can simultaneously have the functions of optical fiber connection and power supply connection. There is no need to add a wire splitting and waterproof structure at the end of the optoelectronic composite cable, and it does not involve complex processes such as optical fiber docking, so as to simplify the connection structure of the optoelectronic composite cable. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Is a perspective view of a watertight connector in some embodiments of the present application;

[0021] Figure 2 Is a sectional view of a watertight connector in some embodiments of the present application;

[0022] Figure 3 Is a schematic sectional view of a watertight connector inserted into an ROV in some embodiments of the present application;

[0023] Figure 4 Is a perspective view of an optical and electrical composite cable in some embodiments of the present application. Detailed implementation manners

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments.

[0025] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element.

[0027] When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined.

[0031] Please refer to Figures 1 to 4 together, and a description will now be given of the watertight connector provided by the embodiments of this application.

[0032] Referring to Figure 3 and Figure 4 the watertight connector of this application is used to be arranged at the end of the optical and electrical composite cable 200. Among them, the optical and electrical composite cable 200 includes a main cable, and an optical fiber bundle 210 and a wire 220 covered in the main cable; further, the main cable includes a Kevlar layer 240, and both the optical fiber bundle 210 and the wire 220 are covered by the Kevlar layer 240.

[0033] The watertight connector of this application is used to separate the optical fiber bundle 210 and the wire 220 at the end of the optical and electrical composite cable 200 from the main cable.

[0034] Referring to Figure 1 and Figure 2 the watertight connector includes a socket housing 100, on which a connection end 100a and a plug-in end 100b are formed, and an equipment compartment 100c is formed inside the socket housing 100 between the connection end 100a and the plug-in end 100b.

[0035] Specifically, the connection end 100a is used to connect the optical and electrical composite cable 200, the end of the optical and electrical composite cable 200 passes through the connection end 100a and enters the equipment compartment 100c, and the optical fiber bundle 210 and the wire 220 at the end of the optical and electrical composite cable 200 are separated from the main cable of the optical and electrical composite cable 200 in the equipment compartment 100c.

[0036] An optical fiber connector 141 and a power supply connector 142 are arranged on the plug-in end 100b, the aforementioned optical fiber bundle 210 is connected to the optical fiber connector 141, and the aforementioned wire 220 is connected to the power supply connector 142. It should be understood that the plug-in end 100b is used to be connected to the connection port on the electrical equipment compartment 300 on the ROV to realize the electrical signal connection and optical fiber signal transmission to the ROV.

[0037] Further, a perfusion cavity 100d is formed at one end of the equipment cabin 100c close to the connection end 100a. At least part of the end of the Kevlar layer 240 coated on the optoelectronic composite cable 200 is located in the perfusion cavity 100d, and epoxy resin is perfused in the perfusion cavity 100d. In this way, the epoxy resin in the perfusion cavity 100d can form a load-bearing structure to firmly hold the optoelectronic composite cable 200, so as to prevent the optoelectronic composite cable 200 from detaching from the watertight connector, thereby increasing the connection stability between the two.

[0038] In summary, by providing the equipment cabin 100c in the socket housing 100 and providing the optical fiber connector 141 and the power supply connector 142 on the insertion end 100b of the socket housing 100, the optical fiber bundle 210 and the wire 220 at the end of the optoelectronic composite cable 200 can be respectively connected to the optical fiber connector 141 and the power supply connector 142 in the equipment cabin 100c, so that the insertion end 100b on the socket can simultaneously have the functions of optical fiber connection and power supply connection. There is no need to add a wiring and waterproof structure at the end of the optoelectronic composite cable 200, and it does not involve complex processes such as optical fiber docking, thereby simplifying the connection structure of the optoelectronic composite cable 200.

[0039] Reference Figure 2 , in some embodiments, the perfusion cavity 100d is in a constricted shape, and the diameter of the perfusion cavity 100d on the side close to the connection end 100a is smaller than the diameter of the perfusion cavity 100d on the side close to the insertion end 100b. In this way, the friction between the epoxy resin and the inner wall of the equipment cabin 100c can be increased to enhance the tensile performance of the epoxy resin, thereby improving the connection stability between the optoelectronic composite cable 200 and the watertight connector.

[0040] Reference Figures 1 to 3 , in some embodiments, the socket housing 100 includes a gland 120, a socket outer shell 100, and a plug-in board 130; the gland 120 is threadedly connected to the open end of the socket outer shell 100; the plug-in board 130 is fixedly arranged at the open end of the other end of the socket outer shell 100, and the insertion end 100b is arranged on the plug-in board 130; the equipment cabin 100c is formed inside the enclosed space formed by the gland 120, the socket outer shell 100, and the plug-in board 130; the optoelectronic composite cable 200 passes through the gland 120 and the end is located in the equipment cabin 100c.

[0041] By arranging the socket housing 100 in such a way that after passing the hybrid fiber-optic cable 200 through the gland 120, the gland 120 is threadedly connected and fixed to the socket housing 100, epoxy resin is poured into the perfusion cavity 100d from the opening at the other end of the socket housing 100 to fix the hybrid fiber-optic cable 200 to the socket housing 100. Then, the fiber optic bundle 210 and the wire 220 are respectively plugged into the fiber optic connector 141 and the power supply connector 142 on the plug-in board 130. Finally, the plug-in board 130 is fixed to the opening at the other end of the socket housing 100, thus completing the connection between the hybrid fiber-optic cable 200 and the socket housing 100, and the connection and fixation between the two are convenient and fast.

[0042] In some embodiments, the plug-in board 130 is fixedly connected to the plug-in housing by bolts. Specifically, threaded holes are provided on the opening end face of the socket housing 100, and corresponding threaded holes are also provided on the plug-in board 130, and the bolts are threadedly connected into the threaded holes.

[0043] Reference Figure 2 , in some embodiments, an optical fiber coupler 143 is provided on the plug-in board 130, and the optical fiber coupler 143 is connected to the optical fiber connector 141. In this way, using a common optical fiber coupler 143 can save the customization cost of the optical fiber connector 141 and is convenient for maintenance.

[0044] Reference Figure 2 and Figure 3 , in some embodiments, the plug-in board 130 is disposed inside the opening of the socket housing 100 and has a height distance from the opening of the socket housing 100. The height distance between the two is also the plug-in space between the socket housing 100 and the connection port of the electrical equipment compartment 300 on the ROV.

[0045] Reference Figure 2 and Figure 3 , further, at least two sealing grooves 151 are arranged along the axial direction on the outer peripheral wall of the socket housing 100, and the distance between the sealing grooves 151 and the opening of the socket housing 100 is less than the height distance between the plug-in board 130 and the opening of the socket housing 100; an O-ring 152 is provided in the sealing grooves 151. Preferably, at least two O-rings 152 are provided. By providing the O-ring 152, the sealing performance of the watertight connector after being plugged into the ROV can be enhanced to avoid the situation of water seepage in the plug-in space resulting in connection failure.

[0046] Reference Figure 1, Further, a flange 160 is provided on the socket housing 100, and the distance between the flange 160 and the opening of the socket housing 100 is greater than the distance between the sealing groove 151 and the opening of the socket housing 100. After the watertight connector is plugged into the ROV, the flange 160 can be locked and fixed to the ROV by bolts to enhance the stability of the connection between the watertight connector and the ROV.

[0047] In some embodiments, an anti-fooling structure (not shown in the figure) is provided on one side of the plug-in board 130 facing the opening of the plug-in housing. The fiber optic connectors 141 and the power supply connectors 142 are respectively arranged on the anti-fooling structure. It can be understood that the anti-fooling structure can be several bumps with different shapes, and each fiber optic connector 141 and each power supply connector 142 are respectively arranged on each bump. In this way, when the watertight connector is plugged into the ROV, the fiber optic connectors 141 and the power supply connectors 142 can be prevented from colliding with each other, which is convenient for operation and can also prevent the plug-in board 130 from being damaged.

[0048] Reference Figure 4 , In some embodiments, the fiber optic composite cable 200 further includes a strengthening core 230, and the strengthening core 230, the fiber optic bundle 210 and the wire 220 are all covered by the Kevlar layer 240. Specifically, the strengthening core 230 is made of fiber-reinforced plastic, which can enhance the tensile strength and shear resistance of the fiber optic composite cable 200 while maintaining good flexibility.

[0049] Further, an inner lining layer 250 is also covered outside the wire 220, and the inner lining layer 250 is made of non-woven fabric material. By providing the inner lining layer 250, the impact force received by the fiber optic composite cable 200 can be buffered to prevent the wire 220 from breaking.

[0050] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A watertight connector, characterized in that, Comprising: A socket housing, on which a connection end and a plug-in end are formed, and an equipment cabin is formed inside the socket housing between the connection end and the plug-in end; The connection end is used to connect an optical and electrical composite cable. The plug-in end is provided with an optical fiber connector and a power supply connector. The end of the optical and electrical composite cable is located in the equipment cabin, and the optical fiber bundle on it is connected to the optical fiber connector, and the wire on it is connected to the power supply connector; A perfusion cavity is formed at one end of the equipment cabin close to the connection end. At least part of the end of the optical and electrical composite cable coated with a Kevlar layer is located in the perfusion cavity, and epoxy resin is poured in the perfusion cavity.

2. The watertight connector according to claim 1, characterized in that: The perfusion cavity is in a contracted shape, and the diameter of the perfusion cavity on the side close to the connection end is smaller than the diameter of the perfusion cavity on the side close to the plug-in end.

3. The watertight connector according to claim 1 or 2, characterized in that: The socket housing includes a gland, a socket outer shell and a plug-in board; the gland is threadedly connected to the open end of the socket outer shell; the plug-in board is fixedly arranged at the open end of the other end of the socket outer shell, and the plug-in end is arranged on the plug-in board; the equipment cabin is formed inside the closed space formed by enclosing the gland, the socket outer shell and the plug-in board; the optical and electrical composite cable passes through the gland and the end is located in the equipment cabin.

4. The watertight connector according to claim 3, wherein: The plug-in board is fixedly connected to the socket housing by bolts.

5. The watertight connector according to claim 3, characterized in that: An optical fiber coupler is arranged on the plug-in board, and the optical fiber coupler is connected to the optical fiber connector.

6. The watertight connector according to claim 3, characterized in that: The plug-in board is arranged inside the opening of the socket outer shell and is spaced from the opening of the socket outer shell by a height distance; at least two sealing grooves are arranged along the axial direction on the outer peripheral wall of the socket outer shell, and the distance between the sealing grooves and the opening of the socket outer shell is smaller than the height distance between the plug-in board and the opening of the socket outer shell; sealing rings are padded in the sealing grooves.

7. The watertight connector according to claim 6, characterized in that: A flange is arranged on the socket outer shell, and the distance between the flange and the opening of the socket outer shell is greater than the distance between the sealing grooves and the opening of the socket outer shell.

8. The watertight connector according to claim 3, characterized in that: An anti-fooling structure is arranged on one side of the plug-in board facing the opening of the socket outer shell, and the optical fiber connector and the power supply connector are respectively arranged on the anti-fooling structure.

9. The watertight connector according to claim 1 or 2, characterized in that: The optical and electrical composite cable further includes a strengthening core, and the strengthening core, the optical fiber bundle and the wire are all coated by the Kevlar layer.

10. The watertight connector according to claim 9, characterized in that: An inner lining layer is further coated outside the wire, and the inner lining layer is made of non-woven fabric material.

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