Electrical connection device for ship body cable butt joint

Abstract

The invention provides an electrical connection device for ship body cable butt joint, the electrical connection device comprises a fixed module and a floating module which is in butt joint with the fixed module in a sleeved mode, an inner conical surface is formed on the inner side wall of the fixed module, an outer conical surface is formed on the outer side wall of the floating module, and connectors are installed on installation plates of the fixed module and the floating module. When the floating module is sleeved into the fixed module, the inner conical surface is attached to the outer conical surface, and the connector can be electrically connected. The connector is provided with a certain displacement, and it is guaranteed that certain relative movement exists between the connector and the cabin body to offset tolerance and installation errors of the cabin body. According to the electrical connection scheme, the segmented cable design is adopted, bridging cable interfaces are integrated in the floating modules, and the construction speed is effectively increased through integral butt joint of the connectors in the modules along with areas. Regional construction needs to be carried out on ships, the cross-regional cable construction workload is reduced, regional integrity is achieved in the real sense, and meanwhile the problem of rapid cable replacement is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable docking, and in particular to an electrical connection device for ship hull cable docking. Background Art

[0002] The laying of marine cables is an important process in the overall shipbuilding process. Cross-regional cables are usually connected through cabins after the docking of the sections or regions of the entire ship's hull is completed, and the laying time is long. At the same time, the integrity of each region cannot form a truly complete region due to the legacy of related implicated issues caused by the cables to be laid, which seriously affects the modular regional design concept of modern shipbuilding. According to traditional system design, most ship cables will cross regional lengths and in large quantities. Once the cable has quality problems, the entire cable needs to be replaced, which is a large workload. Cable design and construction seriously affect the construction progress.

[0003] In order to improve the regional integrity and speed up the construction progress, it is necessary to study a cable docking method that can dock the cables with simple operations to achieve the true integrity of the regionalization. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an electrical connection device for docking of hull cables, the electrical connection device comprising a fixed module and a floating module that are docked and sleeved with each other;

[0005] The fixed module includes a first cylindrical shell and a first mounting plate fixed in the first cylindrical shell, and the floating module includes a second cylindrical shell and a second mounting plate fixed in the second cylindrical shell; from the port of the first cylindrical shell close to the floating module to the first mounting plate, the inner side wall of the first cylindrical shell is contracted inward to form an inner conical surface; from the port of the second cylindrical shell close to the fixed module to the second mounting plate, the outer side wall of the second cylindrical shell is expanded outward to form an outer conical surface;

[0006] The first mounting plate of the fixed module and the second mounting plate of the floating module are both equipped with connectors. When the floating module is inserted into the fixed module, the inner conical surface fits the outer conical surface and the connector realizes electrical connection.

[0007] Optionally, the surface of the second mounting plate close to the fixed module is provided with an observation hole and a guide pin, and the surface of the first mounting plate close to the floating module is provided with an observation color block and a guide pin hole. When the fixed module is docked with the floating module, the guide pin can be inserted into the guide pin hole, and the observation color block can be seen through the observation hole.

[0008] Optionally, an annular sealing gasket is installed at the intersection of the first mounting plate and the inner conical surface, and when the fixed module and the floating module are docked, the outer conical surface is close to the edge of the fixed module to press the sealing gasket.

[0009] Optionally, the end faces of the fixed module and the floating module that are away from each other are covered with a sealing cover plate, and a sealing strip is provided at the connection between the sealing cover plate and the end face of the cylindrical shell; the side wall of the cylindrical shell is provided with an exhaust hole and an inflation hole for replacing the air in the internal cavity of the module with nitrogen.

[0010] Optionally, the connector includes a power connector and a signal connector, and the power connector includes a high-voltage connector and a high-current connector.

[0011] Optionally, a plurality of insulators of different sizes are arranged inside the signal connector, a cavity is opened inside each insulator, and a plurality of contact members of different types are installed in each cavity.

[0012] Optionally, the signal connector is connected to the mounting area via a floating mechanism, the floating mechanism comprising a through hole opened at the edge of the signal connector housing and a mounting block that can be inserted into the through hole, the mounting block is used to fix the signal connector to the mounting area of ​​the fixed module or the floating module, and there is a floating gap between the outer wall of the mounting block and the inner wall of the through hole, so that the signal connector can be relatively displaced within the range of the floating gap.

[0013] Optionally, the high current connector is a watchband contact finger type connector, including a flat plug and a watchband contact finger socket; a contact plate is provided inside the flat plug;

[0014] The watchband contact finger socket comprises at least one row of multiple watchband contact fingers arranged in a straight line, and the watchband contact fingers are elastic fins, and there is a certain angle between the fins and the mounting plane of the watchband contact finger socket. When the fins contact the contact plate of the flat plug, they are squeezed and deformed to generate pressure for contact power transmission.

[0015] Optionally, the strap contact is fixed on the mounting base plate, the lower pressure plate is fixed on the mounting plane of the strap contact socket, a groove is formed between the upper pressure plate and the lower pressure plate, the groove can accommodate the mounting base plate and expose the strap contact, and there is a certain gap between the groove and the edge of the mounting base plate so that the strap contact has a certain lateral movement.

[0016] Optionally, the high-voltage connector includes a high-voltage socket and a high-voltage plug, the high-voltage socket includes a high-voltage jack connected to the end of the cable, and the outer sleeve of the high-voltage jack is provided with a first insulating sleeve; the high-voltage plug includes a high-voltage pin connected to the end of the cable, and the outer sleeve of the high-voltage pin is provided with a second insulating sleeve, when the high-voltage socket and the high-voltage plug are connected, the high-voltage pin is inserted into the high-voltage jack, and the second insulating sleeve is inserted into the gap between the first insulating sleeve and the high-voltage jack; the connection between the cable and the high-voltage jack and the connection between the cable and the high-voltage pin are both covered with a rubber insulating tail sleeve.

[0017] As described above, the present invention provides an electrical connection device for docking hull cables, the electrical connection device includes a fixed module and a floating module that is docked and inserted into the fixed module, the inner side wall of the fixed module is formed with an inner cone, the outer side wall of the floating module is formed with an outer cone, and connectors are installed on the mounting plates of the fixed module and the floating module. When the floating module is inserted into the fixed module, the inner cone fits the outer cone, and the connector can be electrically connected. The connector includes a power connector and a signal connector. The connector is provided with a certain displacement to ensure that there is a certain relative movement between the connector and the cabin to offset the tolerance and installation error of the cabin. The electrical connection scheme adopts a segmented cable design as a whole, and the jumper cable interface is integrated in the floating module. The connector in the module is docked with the region as a whole, which effectively improves the construction speed. The actual ship only needs to carry out regional construction, reducing the workload of cross-regional cable construction, realizing the true integrity of regionalization, and solving the problem of rapid cable replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It shows a schematic diagram of the three-dimensional structure of the fixed module and the floating module in the first embodiment of the present invention.

[0019] Figure 2 Shown is a schematic structural diagram of the guide pins and guide pin holes in the first embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram showing the docking process of the fixed module and the floating module in the first embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixed module and the floating module in the first embodiment of the present invention.

[0022] Figure 5 It shows a schematic diagram of the structure of the air extraction hole and the air filling hole in the first embodiment of the present invention.

[0023] Figure 6 Shown is a schematic diagram of the structure of a signal connector in Embodiment 1 of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the floating mechanism in the first embodiment of the present invention.

[0025] Figure 8 Shown is a schematic structural diagram of a high current connector in Embodiment 1 of the present invention.

[0026] Fig. 9 Shown is a schematic diagram of the structure of the strap contact finger in the first embodiment of the present invention.

[0027] Fig.10 It shows a schematic diagram of the structure of the upper pressing plate and the lower pressing plate in the first embodiment of the present invention.

[0028] Fig.11 Shown is a schematic structural diagram of a high voltage connector in Embodiment 1 of the present invention.

[0029] Component number description

[0030] Fixed module 11; floating module 12; first mounting plate 110; second mounting plate 120; inner cone 111; outer cone 121; power connector 31; signal connector 21; observation hole 122; guide pin 123; observation color block 112; guide pin hole 113; sealing pad 13; sealing member 15; sealing strip 16; air extraction hole 141; air filling hole 142; insulator 210; floating mechanism 220; guide pin 231; inclined surface 232; connector shell Body 222; mounting block 221; floating gap 223; flat plug 320; watch strap contact socket 310; watch strap contact 311; mounting base 312; upper pressure plate 313; lower pressure plate 314; contact plate 321; cable 410; high voltage jack 411; first insulating sleeve 412; high voltage pin 421; second insulating sleeve 422; first locking sleeve 413; rubber insulating tail sleeve 414; second locking sleeve 423; rubber insulating tail sleeve 424. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic view is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0033] For ease of description, spatial relational terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatial relational terms are intended to include other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between..." means including the end point values.

[0034] In the context of the present application, a structure in which a first feature is described as being "above" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0035] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0036] Embodiment 1

[0037] like Figures 1 to 4 As shown, this embodiment provides an electrical connection device for hull cable docking, the electrical connection device comprising:

[0038] A fixed module 11 and a floating module 12 that are butt-jointed and sleeved with each other;

[0039] The fixed module 11 includes a first cylindrical shell and a first mounting plate 110 fixed in the first cylindrical shell, and the floating module 12 includes a second cylindrical shell and a second mounting plate 120 fixed in the second cylindrical shell;

[0040] From the port of the first cylindrical shell close to the floating module 12 to the first mounting plate 110, the inner side wall of the first cylindrical shell converges inward to form an inner conical surface 111;

[0041] From the port of the second cylindrical shell close to the fixing module 11 to the second mounting plate 120, the outer wall of the second cylindrical shell expands outward to form an outer conical surface 121;

[0042] The first mounting plate of the fixed module 11 is provided with a first connector, and the second mounting plate of the floating module 12 is provided with a second connector; when the floating module 12 is inserted into the fixed module 11, the inner conical surface 111 fits with the outer conical surface 121, and the first connector can be electrically connected to the second connector. The connector includes a power connector 31 and a signal connector 21, and the number and form of the connectors can be flexibly set as needed, and no excessive restrictions are made here.

[0043] When in use, first fix the fixed module 11 to the bulkhead of cabin A which is built first, then lay the cables of cabin A according to the preset route and connect them to the fixed module; then fix the floating module 12 to the bulkhead of cabin B which is built later, then lay the cables of cabin B according to the preset route and connect them to the floating module, then cabin A is docked with cabin B, and the fixed module 11 is docked with the floating module 12.

[0044] Furthermore, the surface of the second mounting plate 120 close to the fixed module is provided with an observation hole 122 and a guide pin 123, and the surface of the first mounting plate 110 close to the floating module is provided with an observation color block 112 and a guide pin hole 113. When the fixed module 11 and the floating module 12 are docked, the guide pin 123 can be inserted into the guide pin hole 113, and the observation color block 112 can be seen through the observation hole 122.

[0045] Specifically, the positions of the observation hole 122 and the observation color block 112, the outer cone 121 and the inner cone 111, and the guide pin 123 and the guide pin hole 113 correspond to each other, forming a three-level positioning, which is adjusted and matched during docking to complete the docking.

[0046] Observe that the color block and the observation hole are in the same position, which is used for preliminary positioning. When the fixed module and the floating module are docked, first observe the color block through the observation hole. If the color block is observed in both holes, it means that the socket plug positions are basically consistent and the docking operation can be performed. After preliminary positioning, the small circle of the outer cone is completely in the large circle of the inner cone. When the floating module is pushed forward for docking, the straight line of the cone surface is now matched. As the matching distance becomes smaller and smaller, the cone surface automatically corrects the position between the modules. When the modules are matched to a certain position, the cone head at the end of the guide pin enters the guide pin hole to form a three-level positioning. As the floating module continues to be pushed in, the guide pin hole and the guide pin are completely matched in place, and the fixed module and the floating module complete high-precision docking. The docking process is as follows: Figure 3 shown.

[0047] Furthermore, an annular sealing gasket 13 is installed at the intersection of the first mounting plate 110 and the inner conical surface 111. When the fixed module 11 and the floating module 12 are docked, the outer conical surface 121 presses the sealing gasket 13 close to the edge of the fixed module 11, thereby forming a closed space inside.

[0048] Furthermore, a sealing cover plate is provided on the end face cover where the fixed module and the floating module are far away from each other, and a sealing strip 16 is provided at the connection between the sealing cover plate and the end face of the cylindrical shell. At the same time, a sealing member 15 is provided at the hole where the cable enters the side wall of the cylindrical shell for sealing. In this way, an independent cavity is formed inside, which can not only prevent dust, oil and moisture from entering, but also replace the air inside the cavity with nitrogen through the exhaust hole 141 and the charging hole 142 on the side wall of the cylindrical shell, so as to prevent oxidation of the internal contact parts and increase product reliability. Figure 5 shown.

[0049] Furthermore, regarding the signal connector, it can transmit optical, electrical, and radio frequency signals. The connector is a floating connector, that is, it is installed in the docking cabin to ensure that there is a certain displacement between the connector and the fixed module or the floating module, and to ensure that there is a certain relative movement between the connector and the cabin to offset the tolerance and installation error of the cabin.

[0050] The signal connector is a plug-and-socket modular connector. The connector itself does not have a locking device, and the connection of the connector needs to be achieved through locking between the fixed module and the floating module.

[0051] The signal connector 21 is provided with a plurality of insulators 210 of different sizes, each of which has a cavity. For example, Figure 6 As shown, the cavity of the insulator can be in three forms, namely cavity I, cavity II and cavity III; multiple different types of contacts can be freely installed and arranged in each cavity, including 8#~22D# low-frequency contacts, 8# differential coaxial contacts and expanded beam optical contacts, MPO optical contacts and other types, to achieve multi-channel various types of optoelectronic signal transmission.

[0052] Furthermore, if Figure 7 As shown, the signal connector is connected to the mounting area via a floating mechanism 220, a guide pin 231 is fixed to the edge of the shell of the signal connector, and the docking port of the insulator inside the signal connector is designed as a slope 232 to provide guidance when the position of the plug and socket is slightly deviated.

[0053] The floating mechanism 220 includes a through hole opened at the edge of the signal connector housing 222 and a mounting block 221 that can be inserted into the through hole. The mounting block 221 is used to fix the signal connector to the mounting area of ​​the fixed module or the floating module. A floating gap 223 is provided between the outer wall of the mounting block 221 and the inner wall of the through hole so that the signal connector can be relatively displaced within the range of the floating gap, so that the docking has a certain compensation function in the event of misinsertion.

[0054] Furthermore, the power connector includes a high voltage connector and a high current connector. Both the high voltage connector and the high current connector are used for high power transmission, wherein the high voltage connector is used for high voltage cables, and the high current connector is used for cables transmitting relatively large currents.

[0055] The high current connector is a strap contact type connector, which is used for in-cabin power transmission, such as Figure 8 As shown, the watchband contact connector adopts the watchband contact elastic interconnection technology, including a matching flat plug 320 and a watchband contact socket 310. The watchband contact socket 310 includes at least one row of multiple watchband contacts 311 arranged along a straight line. The constant elastic pressure of the watchband contacts can keep the connection between the contacts stable, thereby achieving a constant low contact resistance and realizing large current transmission in a small space.

[0056] The strap contact finger 311 is an elastic fin, and there is a certain angle between the fin and the installation plane of the strap contact finger socket 310. When the fin contacts the flat plug, it is squeezed and deformed to generate pressure for contact power transmission. Fig. 9 As shown. The transmission power of the strap contact finger can reach 70A / piece, and the resistance of a single piece is about 140μΩ. When multiple pieces are used in parallel, the resistance is (140 / n), where n is the number of strap contact fingers. The strap contact finger can be fixed on the mounting plane of the strap contact finger socket by various installation methods such as rolling or flat placement.

[0057] The strap contact finger 311 is fixed on the mounting base plate 312, and the edge of the mounting base plate 312 is fixed on the mounting plane of the strap contact finger socket 310 through the upper pressing plate 313 and the lower pressing plate 314. The lower pressing plate 314 is fixed on the mounting plane of the strap contact finger socket 310. A groove body is formed between the upper pressing plate 313 and the lower pressing plate 314, and the groove body can accommodate the mounting base plate 312 and expose the strap contact finger 311. There is a certain gap between the groove body and the edge of the mounting base plate 312, so that the strap contact finger 311 can have a certain lateral movement, which is used for dynamic compensation when needed.

[0058] The flat plug 320 is provided with a contact plate 321, which is a copper gold-plated flat surface. The flat surface size is slightly larger than the strap contact finger to compensate for the manufacturing tolerance, ensuring that the strap contact finger can be fully in contact with the flat surface during docking. That is, the width of the contact plate 321 is larger than the edge width of the strap contact finger 311 for fitting the contact plate 321, and the length of the contact plate 321 is larger than the length of a single row of strap contact fingers 311. Figure 8 As shown, a1<a2, b1<b2.

[0059] When designing a connector, the connector and the connected cable will be designed to heat up to ensure that there will be no abnormalities due to overheating during operation. Usually, simulation software is used to simulate the components, calculate the temperature of each part after thermal equilibrium, and then analyze each high-temperature point to improve the heat dissipation of the hot spots.

[0060] Furthermore, for high-voltage connectors, the operating voltage can be as high as 10kV / AC, and is usually designed with a 1.5-fold margin. There are several different types of electrical breakdown phenomena between the electrodes of high-voltage connectors. First, under the action of the electric field, the dielectric of the insulator loses its insulating properties and forms a conductive channel, which is called electrical breakdown; second, the discharge along the surface of the solid insulating dielectric in the gas medium is called flashover; third, the breakdown of the gas between the electric rings is called discharge. Usually, the dielectric material of the high-voltage connector insulator adopts PEEK or PPS, whose dielectric strength can reach 17kV / mm and the surface resistivity reaches more than 210Ω. It is an ideal insulating material with electrical properties sufficient to meet the use requirements. The dielectric strength of air is between 1kV / mm and 2.5kV / mm. Here, it is calculated according to the lower value. The creepage distance is controlled to meet the withstand voltage requirement of 10kV / DC. The creepage distance between the electrical contacts and between the electrical contacts and the housing must be guaranteed to be more than 20mm.

[0061] High-voltage connectors use a method of adding bosses to the periphery of the contact to increase the creepage distance so that it can withstand higher voltages. The contact is installed on the insulator. Through the embedded high-voltage insulation sleeve and tail sleeve structure, the connector can withstand voltages several times that of ordinary connectors in the case of equal volume. The structure is as follows Fig.11 The connector shown can transmit high voltage up to 10kV level.

[0062] Specifically, the high-voltage connector includes a high-voltage socket and a high-voltage plug. The high-voltage socket includes a high-voltage jack 411 connected to the end of the cable 410, and the outer sleeve of the high-voltage jack 411 is provided with a first insulating sleeve 412. The high-voltage plug includes a high-voltage pin 421 connected to the end of the cable 410, and the outer sleeve of the high-voltage pin 421 is provided with a second insulating sleeve 422. When the high-voltage socket and the high-voltage plug are docked, the high-voltage pin 421 is inserted into the high-voltage jack 411, and the second insulating sleeve 422 is inserted into the gap between the first insulating sleeve 412 and the high-voltage jack 411.

[0063] Furthermore, the outer sleeve of the first insulating sleeve 412 is provided with a first locking sleeve 413, and the connection between the cable 410 and the high-voltage socket 411 is covered with a rubber insulating tail sleeve 414; the outer sleeve of the second insulating sleeve 422 is provided with a second locking sleeve 423, and the connection between the cable 410 and the high-voltage pin 421 is also covered with a rubber insulating tail sleeve 424. When the high-voltage socket and the high-voltage plug are connected, the first locking sleeve 413 and the second locking sleeve 423 cooperate to lock.

[0064] The installation and implementation of the above-mentioned electrical connection device includes the following steps:

[0065] 1. The fixed module is first installed on the bulkhead of cabin A;

[0066] 2. The cables in cabin A are laid according to the preset route;

[0067] 3. Install the A compartment cable onto the connector;

[0068] 4. Equipment installation and signal line laying;

[0069] 5. Install the signal connector into the fixed module;

[0070] 6. Cables in cabin B are laid according to the preset route;

[0071] 7. Installation of floating module cables in cabin B and connectors in cabin A;

[0072] 8. Installation of signal connector for floating module in cabin B;

[0073] 9. The floating module is connected to the fixed module;

[0074] 10. Sealing treatment and inert gas filling.

[0075] Because the cable stress connected to the floating module is relatively large, a special tool is required to clamp the floating module on the tool during docking installation, and then align the hydraulic drive module for docking.

[0076] In summary, the present invention provides an electrical connection device for hull cable docking, the electrical connection device includes a fixed module and a floating module that is docked and inserted into the fixed module, the inner side wall of the fixed module is formed with an inner cone, the outer side wall of the floating module is formed with an outer cone, and connectors are installed on the mounting plates of the fixed module and the floating module. When the floating module is inserted into the fixed module, the inner cone fits the outer cone, and the connector can be electrically connected. The connector includes a power connector and a signal connector. The connector is provided with a certain displacement to ensure that there is a certain relative movement between the connector and the cabin to offset the tolerance and installation error of the cabin. The electrical connection scheme adopts a segmented cable design as a whole, and the jumper cable interface is integrated in the floating module. The connector in the module is docked with the region as a whole, which effectively improves the construction speed. The actual ship only needs to carry out regional construction, reducing the workload of cross-regional cable construction, realizing the true integrity of regionalization, and solving the problem of rapid cable replacement.

[0077] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An electrical connection device for ship hull cable docking, characterized in that: The electrical connection device comprises a fixed module and a floating module that are butt-jointed and sleeved with each other; The fixed module includes a first cylindrical shell and a first mounting plate fixed in the first cylindrical shell, and the floating module includes a second cylindrical shell and a second mounting plate fixed in the second cylindrical shell; from the port of the first cylindrical shell close to the floating module to the first mounting plate, the inner side wall of the first cylindrical shell is contracted inward to form an inner conical surface; from the port of the second cylindrical shell close to the fixed module to the second mounting plate, the outer side wall of the second cylindrical shell is expanded outward to form an outer conical surface; The first mounting plate of the fixed module and the second mounting plate of the floating module are both equipped with connectors. When the floating module is inserted into the fixed module, the inner conical surface fits the outer conical surface and the connector realizes electrical connection.

2. The electrical connection device for hull cable docking according to claim 1, characterized in that: The surface of the second mounting plate close to the fixed module is provided with an observation hole and a guide pin, and the surface of the first mounting plate close to the floating module is provided with an observation color block and a guide pin hole. When the fixed module is docked with the floating module, the guide pin can be inserted into the guide pin hole, and the observation color block can be seen through the observation hole.

3. The electrical connection device for ship hull cable docking according to claim 1, characterized in that: An annular sealing gasket is installed at the intersection of the first mounting plate and the inner conical surface. When the fixed module and the floating module are docked, the outer conical surface is close to the edge of the fixed module to press the sealing gasket.

4. The electrical connection device for hull cable docking according to claim 1, characterized in that: The end faces of the fixed module and the floating module that are away from each other are covered with sealing covers, and the connection between the sealing cover and the end face of the cylindrical shell is padded with sealing strips; the side wall of the cylindrical shell is provided with exhaust holes and inflation holes for replacing the air in the internal cavity of the module with nitrogen.

5. The electrical connection device for ship hull cable docking according to claim 1, characterized in that: The connector includes a power connector and a signal connector, and the power connector includes a high-voltage connector and a high-current connector.

6. The electrical connection device for ship hull cable docking according to claim 5, characterized in that: The signal connector is provided with a plurality of insulators of different sizes, each of which has a cavity, and each cavity is provided with a plurality of contact pieces of different types.

7. The electrical connection device for ship hull cable docking according to claim 6, characterized in that: The signal connector is connected to the mounting area via a floating mechanism, which includes a through hole formed at an edge of the signal connector housing and a mounting block that can be inserted into the through hole. The mounting block is used to fix the signal connector to the mounting area of ​​a fixed module or a floating module. A floating gap is provided between the outer wall of the mounting block and the inner wall of the through hole, so that the signal connector can be relatively displaced within the range of the floating gap.

8. The electrical connection device for ship hull cable docking according to claim 5, characterized in that: The high current connector is a watchband contact finger type connector, including a flat plug and a watchband contact finger socket; a contact plate is provided inside the flat plug; The watchband contact finger socket comprises at least one row of multiple watchband contact fingers arranged in a straight line, and the watchband contact fingers are elastic fins, and there is a certain angle between the fins and the mounting plane of the watchband contact finger socket. When the fins contact the contact plate of the flat plug, they are squeezed and deformed to generate pressure for contact power transmission.

9. The electrical connection device for ship hull cable docking according to claim 8, characterized in that: The strap contact finger is fixed on the mounting base plate, the lower pressure plate is fixed on the mounting plane of the strap contact finger socket, a groove body is formed between the upper pressure plate and the lower pressure plate, the groove body can accommodate the mounting base plate and expose the strap contact finger, and there is a certain gap between the groove body and the edge of the mounting base plate so that the strap contact finger has a certain lateral movement.

10. The electrical connection device for ship hull cable docking according to claim 5, characterized in that: The high-voltage connector includes a high-voltage socket and a high-voltage plug. The high-voltage socket includes a high-voltage jack connected to the end of the cable, and the outer sleeve of the high-voltage jack is provided with a first insulating sleeve; the high-voltage plug includes a high-voltage pin connected to the end of the cable, and the outer sleeve of the high-voltage pin is provided with a second insulating sleeve. When the high-voltage socket and the high-voltage plug are connected, the high-voltage pin is inserted into the high-voltage jack, and the second insulating sleeve is inserted into the gap between the first insulating sleeve and the high-voltage jack; the connection between the cable and the high-voltage jack and the connection between the cable and the high-voltage pin are both covered with a rubber insulating tail sleeve.

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