Underwater large-depth oil-filled pressure balance type photoelectric plug connector
The modularly designed underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector solves the problems of insufficient sealing performance and applicability in existing technologies, achieves high sealing and flexibility in extreme environments, and is suitable for marine engineering, military, scientific research and other fields.
Patent Information
- Application Number
- CN202422686218.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing underwater optoelectronic hybrid connectors need to be re-purchased when they cannot meet the cable structure and transmission requirements, resulting in waste or unusability, and traditional connectors have insufficient sealing performance under special working conditions.
The modular underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector includes a PU tube sealing component and an optoelectronic plug-in module. It is designed as a replaceable part to ensure consistent and interchangeable external dimensions. The stepped hole design and flexible sealing slot adapt to PU tubes of different sizes to meet various electrical performance requirements.
It achieves superior sealing performance and high adaptability in extreme environments, reduces costs, improves equipment maintenance efficiency and flexibility, meets deepwater operations and various electrical performance requirements, and enhances applicability and competitiveness in marine engineering, military and scientific research fields.
Smart Images

Figure CN223378531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a connector technology, and more specifically to an underwater deep-depth oil-filled pressure-balanced photoelectric plug connector. Background Art
[0002] Typically, underwater optoelectronic hybrid connectors are encapsulated and sealed with cables, often limited by varying cable structures and transmission requirements. When cables cannot meet requirements, new ones must be purchased, resulting in a certain degree of waste. Alternatively, in special operating conditions, cables cannot be used and only PU tubing or other oil-filled tubing can be used. Traditional underwater connectors struggle to meet these requirements. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an underwater deep-sea oil-filled pressure-balanced photoelectric plug connector.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an underwater deep-water oil-filled pressure-balanced optoelectronic plug connector, comprising a connector body, the connector body comprising:
[0005] PU tube sealing component, which includes a PU tube sealing groove and mounting holes for connecting the PU tube;
[0006] The connector housing is a standard part, which includes connection holes corresponding to the mounting holes and is used to fix the PU tube sealing component with screws;
[0007] The optoelectronic plug-in component is arranged in the connector housing and consists of a main housing connected to the PU tube sealing slot and an optoelectronic plug-in module connected to the main housing;
[0008] Among them, the PU tube sealing component and the optoelectronic plug-in module are replaceable parts, ensuring that their dimensions are consistent and interchangeable;
[0009] The mounting hole is a stepped hole, and the ratio of the maximum diameter to the minimum diameter of the mounting hole is 2-3.
[0010] The utility model is further configured as follows: the PU tube sealing component is composed of a single part, which can adapt to the sealing requirements of PU tubes of different sizes, and the adaptation to PU tubes of different sizes is achieved by changing the size of the tail sealing groove.
[0011] The utility model is further configured such that: the photoelectric plug-in module can select an appropriate internal pinhole structure according to different use conditions to meet various electrical performance requirements.
[0012] The utility model is further configured as follows: the main performance indicators of the connector body include: current carrying capacity: 8A / 25A, dielectric withstand voltage: 2500Vdc, insertion loss: ≤0.5dB (850nm-1550nm), operating water depth: ≥6000m, and operating temperature range: -30℃ to +80℃.
[0013] The beneficial effects of the utility model are:
[0014] 1. Compared to existing technologies, this new underwater, deep-depth, oil-filled, pressure-balanced optoelectronic plug connector utilizes a PU tube sealing component and connector housing design, providing superior sealing performance even in extreme environmental conditions. The PU tube sealing component design includes sealing slots and mounting holes, enabling effective docking with PU tubes of varying sizes, resulting in an excellent sealing effect.
[0015] 2. The PU tube sealing component and optoelectronic plug module of this utility model's underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector are replaceable parts, ensuring their consistent dimensions and interchangeability. This design greatly enhances the adaptability and flexibility of the connector. Users can select the PU tube sealing component and optoelectronic plug module according to their specific needs to meet different electrical performance requirements. The greatest advantage of this interchangeable design is that users do not need to manufacture multiple specifications of connectors for different application scenarios, which not only reduces costs but also improves equipment maintenance efficiency and flexibility.
[0016] 3. The present invention adopts a modular design concept, decomposing the PU tube sealing component 1 and the optoelectronic plug-in component 5, and adopting a split sealing packaging structure between the components to ensure sealing performance and interchangeability under different usage conditions.
[0017] 4. The main performance indicators of this utility model include: current carrying capacity: 8A / 25A, dielectric withstand voltage: 2500Vdc, insertion loss: ≤0.5dB (850nm-1550nm), operating water depth: ≥6000m, and operating temperature range: -30°C to +80°C. These indicators ensure the safety and reliability of the connector in extreme environments. The formulation of these indicators not only meets the needs of deepwater operations, but also ensures stable performance under various electrical performance requirements, greatly improving the applicability and competitiveness of the connector in fields such as marine engineering, military, and scientific research. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of the utility model's underwater deep-depth oil-filled pressure-balanced photoelectric plug connector.
[0019] Reference numerals in the figure: 1. PU tube sealing component; 2. sealing slot; 3. mounting hole; 4. connector housing; 5. optoelectronic plug-in component; 6. main housing; 7. optoelectronic plug-in module. DETAILED DESCRIPTION
[0020] Reference Figure 1 The embodiment of the underwater large-depth oil-filled pressure-balanced photoelectric plug connector of the utility model is further described.
[0021] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.
[0022] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.
[0023] Figure 1 The underwater deep-water oil-filled pressure-balanced optoelectronic plug connector shown includes a connector body, which includes:
[0024] PU tube sealing component 1, which includes a PU tube sealing groove 2 and a mounting hole 3, for connecting the PU tube;
[0025] The connector housing 4 is a standard part, which includes connection holes corresponding to the mounting holes 3 and is used to be fixedly connected to the PU tube sealing component 1 by screws;
[0026] The optoelectronic plug-in component 5 is disposed in the connector housing 4 and is composed of a main housing 6 connected to the PU tube sealing slot 2 and an optoelectronic plug-in module 7 connected to the main housing 6;
[0027] The present invention adopts a modular design concept, decomposing the PU tube sealing component 1 and the optoelectronic plug-in component 5, and adopting a split sealing packaging structure between the components to ensure sealing performance and interchangeability under different usage conditions. Compared with the existing technology, the underwater large-depth oil-filled pressure-balanced optoelectronic plug connector of the present invention adopts the design of the PU tube sealing component 1 and the connector shell 4, which can provide superior sealing performance under extreme environmental conditions. The design of the PU tube sealing component 1 includes a sealing card groove 2 and an installation hole 3, which can effectively connect with PU tubes of different sizes, thereby achieving an excellent sealing effect.
[0028] Among them, the PU tube sealing component 1 and the optoelectronic plug-in module 7 are replaceable parts, ensuring that their external dimensions are consistent and interchangeable;
[0029] The PU tube sealing component 1 and the optoelectronic plug module 7 of the underwater large-depth oil-filled pressure-balanced optoelectronic plug connector of the present invention are replaceable parts, ensuring that their external dimensions are consistent and interchangeable. This design greatly improves the adaptability and flexibility of the connector. Users can choose the PU tube sealing component 1 and the optoelectronic plug module 7 according to specific usage requirements to meet different electrical performance requirements. The biggest advantage of this interchangeable design is that users do not need to manufacture connectors of various specifications for different application scenarios, which not only reduces costs, but also improves the maintenance efficiency and flexibility of the equipment.
[0030] The mounting hole 3 is a stepped hole, and the ratio of the maximum diameter to the minimum diameter of the mounting hole 3 is 2-3;
[0031] In the aforementioned stepped hole design, maintaining a ratio of the maximum diameter to the minimum diameter of mounting hole 3 between 2 and 3 has significant beneficial effects. When this ratio is less than 2, the minimum diameter is too large, making it difficult to securely fix the mounting component, reducing installation stability, increasing the risk of stress concentration, and preventing the surface from remaining flat after the screw is installed. When the ratio is greater than 3, the large difference in hole diameters may increase processing difficulty and production costs. At the same time, the minimum diameter is too small, which can affect the overall stability and firmness even after the screw is installed. Therefore, ensuring this ratio between 2 and 3 can not only improve installation accuracy and stability, but also effectively reduce the risk of material fatigue and enhance the strength and safety of the overall structure.
[0032] The PU tube sealing component 1 is composed of a single part and can adapt to the sealing requirements of PU tubes of different sizes by changing the size of the tail sealing slot 2. Replacing the PU tube sealing component 1 allows the PU tube to be replaced without affecting the overall appearance, making it possible to use the same connector in different oil circuits. This design simplifies the production and assembly process and reduces manufacturing complexity. The flexible size design of the tail sealing slot 2 allows the component to adapt to different PU tube sizes, greatly improving the versatility of the connector.
[0033] The optoelectronic plug-in module 7 can select appropriate internal pinhole structures according to different usage conditions to meet various electrical performance requirements; the optoelectronic plug-in module 7 can select an insulator structure that meets the requirements based on the usage conditions, such as the number of cores, optoelectronic composite use, high voltage or large current requirements, and can provide a variety of module options by replacement without changing the appearance; this flexibility significantly improves the electrical performance adaptability of the connector, and different pinhole structures can be selected according to specific needs. Users can achieve optimal electrical performance in various application scenarios, such as signal transmission speed, insertion loss and anti-interference ability.
[0034] The modular design of the optoelectronic plug-in module 7 and the PU tube sealing component 1 is beneficial to product performance consistency and stability, while reducing the processing cost of mass production and the difficulty of assembly, commissioning, maintenance and repair.
[0035] The main performance indicators of the connector body include: current carrying capacity: 8A / 25A, dielectric withstand voltage: 2500Vdc, insertion loss: ≤0.5dB (850nm-1550nm), operating water depth: ≥6000m, and operating temperature range: -30℃ to +80℃; ensuring the safety and reliability of the connector in extreme environments. The formulation of these indicators not only meets the needs of deep-water operations, but also ensures stable working performance under various electrical performance requirements, greatly improving the applicability and competitiveness of the connector in marine engineering, military and scientific research fields.
[0036] How to assemble the connector body:
[0037] First, align the mounting hole 3 of the PU tube sealing component 1 with the connection hole of the connector housing 4, then connect the PU tube sealing component 1 and the connector housing 4 with screws, and then install the main housing 6 into the connector housing 4 so that the main housing 6 and the PU tube sealing component 1 are sealed and connected. Then, select the corresponding optoelectronic plug-in module 7 according to actual needs, and insert it into the connector housing 4 to connect it with the main housing 6.
[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.
Claims
1. An underwater deep-depth oil-filled pressure-balanced photoelectric plug connector, characterized by: The invention comprises a connector body, the connector body comprising: A PU tube sealing component (1), comprising a PU tube sealing groove (2) and a mounting hole (3), for connecting the PU tube; The connector housing (4) is a standard part, comprising connection holes corresponding to the mounting holes (3), and is used for being fixedly connected to the PU tube sealing component (1) by screws; The optoelectronic plug-in component (5) is arranged in the connector housing (4) and is composed of a main housing (6) connected to the PU tube sealing slot (2) and an optoelectronic plug-in module (7) connected to the main housing (6); The PU tube sealing component (1) and the optoelectronic plug-in module (7) are replaceable parts, ensuring that their external dimensions are consistent and interchangeable. The installation hole (3) is a stepped hole, and the ratio of the maximum diameter to the minimum diameter of the installation hole (3) is 2-3.
2. The underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector according to claim 1, characterized in that: The PU tube sealing component (1) is composed of a single part and can adapt to the sealing requirements of PU tubes of different sizes. Adaptation to PU tubes of different sizes is achieved by changing the size of the tail sealing slot (2).
3. The underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector according to claim 1, characterized in that: The photoelectric plug-in module (7) can select an appropriate internal pinhole structure according to different usage conditions to meet various electrical performance requirements.
4. The underwater deep-depth oil-filled pressure-balanced optoelectronic plug connector according to claim 1, characterized in that: The main performance indicators of the connector body include: current carrying capacity: 8A / 25A, dielectric withstand voltage: 2500Vdc, insertion loss: ≤0.5dB (850nm-1550nm), operating water depth: ≥6000m, and operating temperature range: -30℃ to +80℃.