An underwater transfer box assembly

Abstract

The underwater transfer box assembly of the present application has an exhaust passage between the two sealing rings, so that the space between the two sealing rings can be connected with the external environment, balancing the pressure difference between the inside and outside, preventing the damage of parts due to the existence of air retention between the two sealing rings. When the transfer box assembly is located underwater, some gas will remain in the exhaust passage, so the water in the environment will not enter the exhaust passage.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more particularly to an underwater transfer box assembly. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this invention and does not constitute prior art.

[0003] As instruments and equipment used in marine scientific research and marine resource development, underwater electrical connectors have become irreplaceable core components. Given the harsh deep-sea environment, the complexity of underwater facilities, and the frequent switching of power and communication signals, it is crucial not only to ensure convenient and quick line switching without affecting power and communication quality, but also to guarantee reliable sealing, corrosion resistance, and resistance to deep-sea pressure. These are key issues that need to be addressed in existing technologies. Current underwater connectors, due to the use of double sealing rings, suffer from air trapped between the two rings during assembly (i.e., the gas between the two sealing rings is compressed during assembly, and excess gas cannot escape). This prevents the assembly from achieving the intended effect, and the pressure difference between the trapped air and the external deep-sea pressure can severely damage internal components, posing a safety hazard.

[0004] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an underwater transfer box assembly.

[0006] To address the aforementioned technical problems, the present invention provides an underwater transfer box assembly, comprising,

[0007] The transfer box includes an outer shell, the interior of which is a hollow cavity, and a first docking hole and a second docking hole are formed on the outer wall of the outer shell;

[0008] A wiring module is installed in the hollow cavity. The wiring module includes a first conductive terminal and a second conductive terminal that are electrically connected to each other. The first conductive terminal extends from the hollow cavity into the first mating hole and is fixed relative to the first mating hole. The second conductive terminal extends from the hollow cavity into the second mating hole and is fixed relative to the second mating hole.

[0009] At least two adapter modules are provided. The first adapter module includes a third mating hole and a third conductive terminal installed within the third mating hole. The second adapter module includes a fourth mating hole and a fourth conductive terminal installed within the fourth mating hole. The third conductive terminal is electrically connected to and fixed relative to the first conductive terminal, and the fourth conductive terminal is electrically connected to and fixed relative to the second conductive terminal.

[0010] Both the first sealing ring and the second sealing ring are located between the first adapter module and the transfer box. The first sealing ring surrounds the first mating hole and the third mating hole, and the second sealing ring surrounds the first sealing ring to seal the gap between the first adapter module and the transfer box.

[0011] The first adapter module or the outer shell of the transfer box is also provided with a first exhaust channel, and the gap between the first sealing ring and the second sealing ring is connected to the external environment through the first exhaust channel.

[0012] Preferably, a third sealing ring and a fourth sealing ring are also provided between the second adapter module and the transfer box. The third sealing ring surrounds the second mating hole and the fourth mating hole, and the fourth sealing ring surrounds the third sealing ring to seal the gap between the second adapter module and the transfer box.

[0013] The second adapter module or the outer shell of the transfer box is also provided with a second exhaust channel, and the gap between the third sealing ring and the fourth sealing ring is connected to the external environment through the second exhaust channel.

[0014] Preferably, the first adapter module or transfer box has a first sealing groove and a second sealing groove for respectively installing the first sealing ring and the second sealing ring;

[0015] The second adapter module or transfer box is provided with a third sealing groove and a fourth sealing groove for installing the third sealing ring and the fourth sealing ring respectively.

[0016] Preferably, the underwater transfer box assembly further includes a first sealing screw for preventing foreign objects from the external environment from entering the first exhaust channel. The first sealing screw seals the first exhaust channel, and there is a gap between the first sealing screw and the first exhaust channel that allows gas or liquid to pass through.

[0017] Preferably, the outer casing is further provided with a fifth mating hole, and the first conductive terminal or the second conductive terminal of the wiring module extends from the hollow cavity into the fifth mating hole and is fixed relative to the fifth mating hole.

[0018] The transfer box assembly further includes a third adapter module, which includes a sixth mating hole and a fifth conductive terminal installed in the sixth mating hole. The fifth conductive terminal is electrically connected to and fixed relative to the conductive terminal of the wiring module.

[0019] A fifth sealing ring and a sixth sealing ring are also provided between the third adapter module and the transfer box. The fifth sealing ring surrounds the fifth and sixth docking holes, and the sixth sealing ring surrounds the fifth sealing ring.

[0020] The outer shell of the third adapter module or the transfer box is also provided with a third exhaust channel, and the gap between the fifth sealing ring and the sixth sealing ring is connected to the external environment through the third exhaust channel.

[0021] The second and third exhaust channels are connected and communicate with the external environment through the same exhaust port. The underwater transfer box assembly also includes a second sealing screw to prevent foreign objects from the external environment from entering the second and third exhaust channels. The second sealing screw seals the common exhaust port of the second and third exhaust channels, and there is a gap between the second sealing screw and the exhaust port that allows gas or liquid to pass through.

[0022] Preferably, the outer casing has a first mating surface, and the first mating hole is formed on the first mating surface.

[0023] The first adapter module has a second mating surface, and the third mating hole is formed on the second mating surface.

[0024] The first mating surface and the second mating surface are in contact and fitted together, and the first sealing ring and the second sealing ring are located between the first mating surface and the second mating surface.

[0025] When the first mating surface and the second mating surface come into contact, the gas located between the first mating surface and the second mating surface can be discharged through the first exhaust channel.

[0026] Preferably, the adapter module includes an adapter shaft, the end face of which has an axially protruding insertion block. The adapter module has a mating hole on the insertion block, and the outer casing has a groove at the mating hole, into which the insertion block is inserted.

[0027] The end face of the connector block is fitted with the bottom of the groove, the side wall of the connector block is fitted with the side wall of the groove, and the end face of the adapter shaft is fitted with the outer wall of the housing.

[0028] The groove for the plug block used to connect to the first adapter module is the first groove.

[0029] The side wall of the plug block of the first adapter module is sealed with the side wall of the first groove by a first sealing ring, and the end face of the adapter shaft of the first adapter module is sealed with the outer wall of the housing by a second sealing ring. The first exhaust channel is opened on the housing, one end of the first exhaust channel is located on the side wall of the first groove, and the other end is connected to the external environment.

[0030] Preferably, the groove for docking with the plug block of the second adapter module is a second groove, and the groove for docking with the plug block of the third adapter module is a third groove.

[0031] The second and third grooves are separated by a partition. The partition has a first channel arranged radially along the transfer box and a second channel arranged axially along the transfer box. The two ends of the first channel are located on the groove walls of the two second and third grooves, respectively, for connecting the two grooves. One end of the second channel is connected to the first channel, and the second channel is open to the external environment.

[0032] The second exhaust channel is formed from one end of the first channel located in the second groove to the outlet of the second channel; the third exhaust channel is formed from one end of the second channel located in the third groove to the outlet of the second channel.

[0033] Preferably, the first and second conductive terminals of the wiring module are conductive sockets, and the first and second conductive terminals are electrically connected by a wire. The third, fourth, and fifth conductive terminals are pin modules, and the conductive sockets can be connected to the pin modules.

[0034] Preferably, the adapter module further includes a connecting sleeve and a base.

[0035] The adapter shaft has two ends, A, which mates with the transfer box, and B, which mates with the connecting sleeve. One end of the connecting sleeve is fitted over the outside of end B of the adapter shaft.

[0036] The adapter shaft has an installation space, and the base is disposed within the installation space.

[0037] The outer wall of the base is provided with a seventh sealing groove along the circumference, and a seventh sealing ring is provided in the seventh sealing groove. The outer wall of the base and the inner wall of the adapter shaft are sealed by the seventh sealing ring. Multiple pin modules are provided inside the base.

[0038] The pin module includes pins, one end of which is an insertion end.

[0039] The insertion end extends from the docking hole of the docking module for docking with the conductive socket, and the other end of the pin is a soldering end for electrically connecting external cables.

[0040] The pin module further includes a second rubber sleeve covering the welding end of the pin and a second dielectric body covering the side of the pin.

[0041] The end of the second rubber sleeve connected to the pin is fixed inside the base. The other end of the second rubber sleeve has a wire through hole, extending from end B of the adapter shaft. The wire through hole is used for external cables to pass through and is press-fitted to the outer diameter of the external cable for sealing. After passing through the wire through hole, the external cable is welded to the welding end of the pin, thus realizing the electrical connection between the external cable and the pin.

[0042] The outer wall of the welding end of the pin is provided with a second circumferential groove along the circumference, and the inner wall of the end of the second rubber sleeve that connects to the pin is provided with a second circumferential protrusion along the circumference, the second circumferential protrusion being engaged with the second circumferential groove.

[0043] The outer wall of the insertion pin is provided with multiple rings of barbs along the circumference, the barbs being used to fix the insertion pin within the base.

[0044] The second dielectric material is injection molded onto the outer wall of the pin. One end of the second dielectric material is fixed to the base, and the other end of the second dielectric material passes through the mating hole of the adapter module.

[0045] The outer wall of the second medium is provided with an eighth sealing groove along the circumference, and an eighth sealing ring is installed in the eighth sealing groove. The second medium is sealed to end A of the adapter shaft through the eighth sealing ring.

[0046] Preferably, the conductive socket includes a socket, a first dielectric body covering the socket, and a first rubber sleeve covering the first dielectric body.

[0047] One end of the socket is electrically connected to the end of the wire by welding, and the other end of the socket is for inserting a pin.

[0048] One end of the first rubber sleeve is a through hole for the wire to pass through, which is press-fitted to the outer diameter of the wire for a seal. The other end of the first rubber sleeve is a mating end, and a first circumferential protrusion is provided on the inner wall of the mating end of the first rubber sleeve along the circumferential direction.

[0049] The outer wall of the second medium is provided with a first circumferential groove along the circumferential direction.

[0050] When the pin is inserted into the mating end of the socket, the second medium is inserted into the mating end of the first rubber sleeve, and the first circumferential protrusion is engaged in the first circumferential groove.

[0051] Preferably, the outer casing includes a housing and an end cap that covers the housing.

[0052] The connection between the housing and the end cap is sealed by a ninth sealing ring and a tenth sealing ring. The end cap is also provided with a fourth venting channel, which is used to connect the part between the ninth sealing ring and the tenth sealing ring to the external environment.

[0053] Preferably, the end cap includes an end cap body and an annular step located on one end face of the end cap body.

[0054] The annular step is inserted into the housing, the end face of the end cap body is in contact with the end face of the housing, the outer wall of the annular step is sealed to the inner wall of the housing by the ninth sealing ring, and the end face of the end cap body is sealed to the end face of the housing by the tenth sealing ring.

[0055] Preferably, the hollow cavity is filled with insulating dielectric oil.

[0056] The shell has an oil injection hole on its side wall, which is used to inject oil into the hollow cavity.

[0057] Preferably, the transfer box assembly further includes a steel plate and U-shaped steel bars fixed at both ends to the steel plate.

[0058] The outer wall of the shell is provided with a U-shaped steel channel, and the U-shaped steel is inserted into the U-shaped steel channel to fix the shell to the steel plate.

[0059] By employing the above technical solutions, the beneficial effects of the present invention are as follows:

[0060] The underwater transfer box assembly of the present invention has an exhaust channel between the two sealing rings, allowing the space between the two sealing rings to communicate with the external environment, balancing the internal and external pressure differences, and preventing damage to components due to air trapped between the two sealing rings. When the transfer box assembly is underwater, some gas will be retained in the exhaust channel, so water from the environment will not enter the exhaust channel. Attached Figure Description

[0061] Figure 1 This is a cross-sectional structural diagram of the transfer box assembly of this application.

[0062] Figure 2 This is a structural schematic diagram of the transfer box assembly of this application.

[0063] Figure 3 This is a cross-sectional structural diagram of the shell of this application.

[0064] Figure 4 This is a three-dimensional structural diagram of the shell of this application.

[0065] Figure 5 This is a cross-sectional structural diagram of the shell of this application.

[0066] Figure 6 This is a cross-sectional structural diagram of the end cap of this application.

[0067] Figure 7 This is a three-dimensional structural diagram of the end cap of this application.

[0068] Figure 8 This is a cross-sectional structural diagram of the end cap of this application.

[0069] Figure 9 yes Figure 1 A magnified view of part A in the middle.

[0070] Figure 10 This is a cross-sectional structural diagram of the wiring module of this application.

[0071] Figure 11 This is a cross-sectional structural diagram of the pin module of this application.

[0072] Figure 12 This is a cross-sectional structural diagram of the adapter module of this application.

[0073] Figure 13 yes Figure 1 A magnified view of part B in the middle section.

[0074] Figure 14 This is a three-dimensional structural diagram of the adapter module of this application.

[0075] Figure 15 yes Figure 1 A magnified view of part C in the middle.

[0076] The components include: 1. Housing; 2. End cap; 3. Adapter module; 31. First adapter module; 32. Second adapter module; 33. Third adapter module; 181. First mating hole; 182. Second mating hole; 183. Third mating hole; 184. Fourth mating hole; 185. Fifth mating hole; 186. Sixth mating hole; 11. Oil injection hole; 10. Hollow cavity; 121. Second groove; 122. Third groove; 13. U-shaped steel channel; 141. Second exhaust channel; 142. Third exhaust channel; 16. L-shaped electrode; 17. Ninth sealing ring; 19. Fixing screw; 151. Second sealing screw; 21. Mounting part; 22. End cap body; 23. Annular step; 24. First groove; 26. Fourth exhaust channel; 28. First exhaust channel; 29. ​​Tenth sealing ring; 210. Third sealing screw; 281. First sealing screw 211. Nail; 41. First mating surface; 42. Steel plate; 43. U-shaped steel; 50. Conductive socket; 51. Socket; 53. Protective tube; 54. First dielectric body; 55. First rubber sleeve; 56. First circumferential protrusion; 57. Wire; 58. Plug end; 59. Welding end; 600. Pin module; 60. Pin; 61. Second dielectric body; 62. First circumferential groove; 63. Eighth sealing ring; 64. Barb; 65. 66. Second rubber sleeve; 67. Wire through hole; 68. Pin welding end; 69. Second circumferential protrusion; 70. Second circumferential groove; 71. Base; 72. Adapter shaft; 73. Connecting sleeve; 74. Set screw; 75. Seventh sealing ring; 76. Second sealing ring; 77. First sealing ring; 78. Third sealing ring; 79. Fourth sealing ring; 710. Fifth sealing ring; 711. Sixth sealing ring; 712. Second mating surface. Detailed Implementation

[0077] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0078] It should be noted that in the description of this invention, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0079] like Figure 1 and 2As shown, an underwater transfer box assembly of the present invention includes: a shell, the interior of which is a hollow cavity 10, with a first docking hole 181 and a second docking hole 182 formed on the outer wall of the shell; a wiring module installed within the hollow cavity 10, the wiring module including a first conductive terminal and a second conductive terminal electrically connected to each other, the first conductive terminal extending from the hollow cavity 10 into the first docking hole 181 and fixed relative to the first docking hole 181, the second conductive terminal extending from the hollow cavity 10 into the second docking hole 182 and fixed relative to the second docking hole 182; and at least two adapter modules, the first adapter module 31 including a third docking hole 183 and a third conductive terminal installed within the third docking hole 183, the second adapter module 32 including a fourth docking hole 184 and a third conductive terminal installed within the third docking hole 183. The system includes a fourth conductive terminal installed in the fourth docking hole 184, the third conductive terminal being electrically connected to and fixed relative to the first conductive terminal, and the fourth conductive terminal being electrically connected to and fixed relative to the second conductive terminal; and a first sealing ring 77 and a second sealing ring 76, both located between the first adapter module 31 and the transfer box, with the first sealing ring 77 surrounding the first docking hole 181 and the third docking hole 183, and the second sealing ring 76 surrounding the first sealing ring 77, to seal the gap between the first adapter module 31 and the transfer box. A first exhaust channel 28 is also provided on the outer shell of the first adapter module 31 or the transfer box, and the gap between the first sealing ring 77 and the second sealing ring 76 is connected to the external environment through the first exhaust channel 28. This design prevents air trapping between the first sealing ring 77 and the second sealing ring 76, balancing the pressure between the two sealing rings with the pressure of the external environment, and preventing damage to components. When the transfer box assembly is underwater, some gas will remain in the exhaust channel, thus preventing water from entering the exhaust channel.

[0080] A third sealing ring 78 and a fourth sealing ring 79 are also provided between the second adapter module 32 and the transfer box. The third sealing ring 78 surrounds the second docking hole 182 and the fourth docking hole 184, and the fourth sealing ring 79 surrounds the third sealing ring 78 to seal the gap between the second adapter module 32 and the transfer box. A second exhaust channel 141 is also provided on the outer shell of the second adapter module 32 or the transfer box, and the gap between the third sealing ring 78 and the fourth sealing ring 79 is connected to the external environment through the second exhaust channel 141. The first adapter module 31 or the transfer box has a first sealing groove and a second sealing groove for respectively installing the first sealing ring 77 and the second sealing ring 76; the second adapter module 32 or the transfer box has a third sealing groove and a fourth sealing groove for respectively installing the third sealing ring 78 and the fourth sealing ring 79.

[0081] The first exhaust passage 28 is sealed with a first sealing screw 281. The first sealing screw 281 is used to prevent foreign objects from the external environment from entering the first exhaust passage 28. There is a gap between the first sealing screw 281 and the first exhaust passage 28 that allows gas or liquid to pass through.

[0082] The outer casing is also provided with a fifth mating hole 185. The first conductive terminal or the second conductive terminal of the wiring module extends from the hollow cavity 10 into the fifth mating hole 185 and is fixed relative to the fifth mating hole 185. The transfer box assembly also includes a third adapter module 33. The third adapter module 33 includes a sixth mating hole 186 and a fifth conductive terminal installed in the sixth mating hole 186. The fifth conductive terminal is electrically connected to and fixed relative to the conductive terminal of the wiring module. A fifth sealing ring 710 and a sixth sealing ring 711 are also provided between the third adapter module 33 and the transfer box. The fifth sealing ring 710 surrounds the fifth mating hole 185 and the sixth mating hole 186, and the sixth sealing ring 711 surrounds the fifth sealing ring 710. The outer casing of the third adapter module 33 or the transfer box is also provided with a third exhaust channel 142. The gap between the fifth sealing ring 710 and the sixth sealing ring 711 is connected to the external environment through the third exhaust channel 142. Figure 3 As shown, the second exhaust channel 141 and the third exhaust channel 142 are connected and connected to the external environment through the same exhaust port. The exhaust port is sealed with a second sealing screw 151. The second sealing screw 151 is used to prevent foreign objects from the external environment from entering the second exhaust channel 141 and the third exhaust channel 142 through the exhaust port. There is a gap between the second sealing screw 151 and the exhaust port that allows gas or liquid to pass through.

[0083] like Figure 1 and 6 As shown, the outer casing has a first mating surface 211, and the first mating hole 181 is formed on the first mating surface 211, as... Figure 1 and 12 As shown, the first adapter module 31 has a second mating surface 712, and the third mating hole 183 is formed on the second mating surface 712. The first mating surface 211 is mated and fitted with the second mating surface 712. The first sealing ring 77 and the second sealing ring 76 are located between the first mating surface 211 and the second mating surface 712. When the first mating surface 211 and the second mating surface 712 are mated, the gas located between the first mating surface 211 and the second mating surface 712 can be discharged through the first exhaust channel 28.

[0084] like Figure 12 and 14 As shown, the adapter module includes an adapter shaft 72, the end face of which has an axially protruding insertion block. The mating hole of the adapter module is formed on the insertion block, as shown. Figure 6-8 As shown, the outer shell has a groove at the docking hole. The plug block is inserted into the groove, with its end face fitting against the bottom of the groove and its side wall fitting against the side wall of the groove. The end face of the adapter shaft 72 fits against the outer wall of the outer shell. The groove for docking the plug block of the first adapter module 31 is a first groove 24. The side wall of the plug block of the first adapter module 31 is sealed with the side wall of the first groove 24 by a first sealing ring 77. The end face of the adapter shaft 72 of the first adapter module 31 is sealed with the outer wall of the outer shell by a second sealing ring 76. The first exhaust channel 28 is opened on the outer shell, with one end of the first exhaust channel 28 located on the side wall of the first groove 24 and the other end connected to the external environment.

[0085] like Figure 3-5 As shown, the groove for connecting the plug block of the second adapter module 32 is the second groove 121, and the groove for connecting the plug block of the third adapter module 33 is the third groove 122. The second groove 121 and the third groove 122 are separated by a partition. The partition has a first channel arranged radially along the transfer box and a second channel arranged axially along the transfer box. The two ends of the first channel are located on the groove walls of the two second grooves 121 and the third groove 122, respectively, for connecting the second grooves 121 and the third groove 122. One end of the second channel is connected to the first channel and is connected to the external environment. The second exhaust channel 141 is formed from the end of the first channel located in the second groove 121 to the outlet of the second channel; the third exhaust channel 142 is formed from the end of the second channel located in the third groove 122 to the outlet of the second channel.

[0086] like Figure 3 As shown, the first channel is formed using an electrical discharge machining (EDM) system, with the part immersed in cooling oil throughout the machining process. The L-shaped electrode 16 is made of copper and includes a machining section parallel to the first channel. The outer diameter of the machining section is 0.1-0.15 mm, smaller than the diameter of the first channel. The L-shaped electrode 16 is clamped in a standard spring clamp for connecting to the EDM equipment. A dial indicator is used to calibrate the end face of the part as a reference, aligning the coordinates of the pre-formed vent hole with the EDM equipment. The machining section of the L-shaped electrode 16 is aligned parallel to the end face, and the spark amount on one side is 0.1-0.2 mm for EDM. The diameter of the groove is greater than the distance between the two grooves, and the length of the machining section of the L-shaped electrode is greater than the distance between the two grooves but less than the diameter of the groove.

[0087] The first and second conductive terminals of the wiring module are conductive sockets 50, and the first and second conductive terminals are electrically connected by wires 57. The third, fourth, and fifth conductive terminals are pin modules 600, and the conductive sockets 50 can be connected to the pin modules 600.

[0088] like Figure 12 As shown, the adapter module further includes a connecting sleeve 73 and a base 71. The two ends of the adapter shaft 72 are respectively end A, which is connected to the transfer box, and end B, which is connected to the connecting sleeve 73. One end of the connecting sleeve 73 is sleeved on the outside of end B of the adapter shaft 72. The adapter shaft 72 has an installation space inside. The base 71 is disposed in the installation space. The outer wall of the base 71 has a seventh sealing groove along the circumference. A seventh sealing ring 75 is disposed in the seventh sealing groove. The outer wall of the base 71 and the inner wall of the adapter shaft 72 are sealed by the seventh sealing ring 75. A plurality of the pin modules 600 are disposed inside the base 71.

[0089] like Figure 11As shown, the pin module 600 includes a pin 60, one end of which is an insertion end extending from the docking hole of the docking module for docking with the conductive socket 50. The other end of the pin 60 is a soldering end 59 for electrically connecting an external cable. The pin module 600 also includes a second rubber sleeve 65, one end of which covers the soldering end 59 of the pin 60, and a second dielectric body 61 covering the outside of the pin 60. The end of the second rubber sleeve 65 connected to the pin 60 is fixed in the base 71. The other end of the second rubber sleeve 65 has a wire through hole 66 extending from end B of the adapter shaft 72. The wire through hole 66 is used for external cables to pass through and is press-fitted to the outer diameter of the external cable. After passing through the wire through hole 66, the external cable is soldered to the soldering end 59 of the pin 60, realizing the electrical connection between the external cable and the pin 60. The outer wall of the 59 is provided with a second circumferential groove 69 along the circumference. The inner wall of the end of the second rubber sleeve 65 connected to the pin 60 is provided with a second circumferential protrusion 68 along the circumference. The second circumferential protrusion 68 is inserted into the second circumferential groove 69. The outer wall of the pin 60 is provided with multiple barbs 64 along the circumference. The barbs 64 are used to fix the pin 60 in the base 71. The second medium body 61 is formed on the outer wall of the pin 60 by injection molding. One end of the second medium body 61 is fixed to the base 71. The other end of the second medium body 61 passes through the docking hole of the adapter module. The outer wall of the second medium body 61 is provided with an eighth sealing groove along the circumference. An eighth sealing ring 63 is installed in the eighth sealing groove. The second medium body 61 is sealed to the A end of the adapter shaft 72 through the eighth sealing ring 63. The pin module 600 of this application achieves modular docking with the wiring module, making installation and disassembly faster and easier.

[0090] like Figure 10As shown, the conductive socket 50 includes a socket 51, a first dielectric body 54 covering the socket 51, and a first rubber sleeve 55 covering the first dielectric body 54. One end of the socket 51 is electrically connected to the end of the wire 57 by welding, and the other end of the socket 51 is for inserting a pin. One end of the first rubber sleeve 55 is a through hole for the wire 57 to pass through, and is press-fitted to the outer diameter of the wire 57. The other end of the first rubber sleeve 55 is a mating end 58. A first circumferential protrusion 56 is provided on the inner wall of the mating end 58 of the first rubber sleeve 55. A first circumferential groove 62 is provided on the outer wall of the second dielectric body 61. When the pin 60 is inserted into the mating end 58 of the socket 51, the second dielectric body 61 is inserted into the mating end 58 of the first rubber sleeve 55, and the first circumferential protrusion 56 is engaged in the first circumferential groove 62.

[0091] The outer casing includes a housing 1 and an end cap 2 that covers the housing 1, such as... Figure 9 As shown, the connection between the housing 1 and the end cap 2 is sealed by a ninth sealing ring 17 and a tenth sealing ring 29. The end cap 2 is also provided with a fourth exhaust channel 26, which connects the portion between the ninth sealing ring 17 and the tenth sealing ring 29 to the external environment. A third sealing screw 210 is installed at the exhaust port of the fourth exhaust channel 26. The third sealing screw 210 prevents foreign objects from the external environment from entering the fourth exhaust channel 26. A gap exists between the third sealing screw 210 and the fourth exhaust channel 26, allowing gas to pass through. The first sealing screw 281, the second sealing screw 151, and the third sealing screw 210 of this application can prevent foreign objects from the external environment from entering the channel, such as marine plankton and shellfish, but do not affect the airflow.

[0092] like Figure 6-8 As shown, the end cap 2 includes an end cap 2 body and an annular step 23 located on one end face of the end cap 2 body. The annular step 23 is inserted into the housing 1. The end face of the end cap 2 body contacts the end face of the housing 1. The outer wall of the annular step 23 is sealed to the inner wall of the housing 1 by the ninth sealing ring 17, and the end face of the end cap 2 body is sealed to the end face of the housing 1 by the tenth sealing ring 29. This design can prevent air trapping between the ninth sealing ring 17 and the tenth sealing ring 29, balance the pressure between the two sealing rings with the pressure of the external environment, and prevent damage to components.

[0093] like Figure 1 and 2As shown, the transfer box assembly also includes a steel plate 41 and U-shaped steel 42s fixed at both ends to the steel plate 41. A U-shaped steel groove 13 is provided on the outer wall of the housing 1, and the U-shaped steel 42 is inserted into the U-shaped steel groove 13, thus fixing the housing 1 to the steel plate 41. This structure allows the transfer box to be freely disassembled. The hollow cavity 10 is filled with insulating medium oil, and an oil injection hole 11 is provided on the side wall of the housing 1 for injecting oil into the hollow cavity 10.

[0094] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An underwater transfer box assembly, characterized in that, include, The transfer box includes an outer shell, the interior of which is a hollow cavity (10), and a first docking hole (181) and a second docking hole (182) are provided on the outer wall of the outer shell; A wiring module is installed inside the hollow cavity (10). The wiring module includes a first conductive terminal and a second conductive terminal that are electrically connected to each other. The first conductive terminal extends from the hollow cavity (10) into the first mating hole (181) and is fixed relative to the first mating hole (181). The second conductive terminal extends from the hollow cavity (10) into the second mating hole (182) and is fixed relative to the second mating hole (182). At least two adapter modules are provided. The first adapter module (31) includes a third mating hole (183) and a third conductive terminal installed in the third mating hole (183). The second adapter module (32) includes a fourth mating hole (184) and a fourth conductive terminal installed in the fourth mating hole (184). The third conductive terminal is electrically connected to and fixed relative to the first conductive terminal. The fourth conductive terminal is electrically connected to and fixed relative to the second conductive terminal. as well as The first sealing ring (77) and the second sealing ring (76) are both located between the first adapter module (31) and the transfer box. The first sealing ring (77) surrounds the first mating hole (181) and the third mating hole (183), and the second sealing ring (76) surrounds the first sealing ring (77) to seal the gap between the first adapter module (31) and the transfer box. The first adapter module (31) or the outer shell of the transfer box is provided with a first exhaust channel (28), and the gap between the first sealing ring (77) and the second sealing ring (76) is connected to the external environment through the first exhaust channel (28).

2. The underwater transfer box assembly according to claim 1, characterized in that, A third sealing ring (78) and a fourth sealing ring (79) are also provided between the second adapter module (32) and the transfer box. The third sealing ring (78) surrounds the second docking hole (182) and the fourth docking hole (184), and the fourth sealing ring (79) surrounds the third sealing ring (78) to seal the gap between the second adapter module (32) and the transfer box. The second adapter module (32) or the outer shell of the transfer box is also provided with a second exhaust channel (141), and the gap between the third sealing ring (78) and the fourth sealing ring (79) is connected to the external environment through the second exhaust channel (141).

3. The underwater transfer box assembly according to claim 2, characterized in that, The first adapter module (31) or transfer box is provided with a first sealing groove and a second sealing groove for respectively installing the first sealing ring (77) and the second sealing ring (76). The second adapter module (32) or transfer box is provided with a third sealing groove and a fourth sealing groove for installing the third sealing ring (78) and the fourth sealing ring (79) respectively.

4. The underwater transfer box assembly according to claim 1, characterized in that, The underwater transfer box assembly also includes a first sealing screw (281) for preventing foreign objects from the external environment from entering the first exhaust channel (28). The first sealing screw (281) seals the first exhaust channel (28), and there is a gap between the first sealing screw (281) and the first exhaust channel (28) that allows gas or liquid to pass through.

5. The underwater transfer box assembly according to claim 2, characterized in that, The outer casing is also provided with a fifth mating hole (185). The first conductive terminal or the second conductive terminal of the wiring module extends from the hollow cavity (10) into the fifth mating hole (185) and is fixed relative to the fifth mating hole (185). The transfer box assembly further includes a third adapter module (33), which includes a sixth docking hole (186) and a fifth conductive terminal installed in the sixth docking hole (186). The fifth conductive terminal is electrically connected to and fixed relative to the conductive terminal of the wiring module. A fifth sealing ring (710) and a sixth sealing ring (711) are provided between the third adapter module (33) and the transfer box. The fifth sealing ring (710) surrounds the fifth docking hole (185) and the sixth docking hole (186), and the sixth sealing ring (711) surrounds the fifth sealing ring (710). The third adapter module (33) or the outer shell of the transfer box is also provided with a third exhaust channel (142), and the gap between the fifth sealing ring (710) and the sixth sealing ring (711) is connected to the external environment through the third exhaust channel (142). The second exhaust channel (141) and the third exhaust channel (142) are connected and connected to the external environment through the same exhaust port. The underwater transfer box assembly also includes a second sealing screw (151) to prevent foreign objects from the external environment from entering the second exhaust channel (141) and the third exhaust channel (142). The second sealing screw (151) blocks the common exhaust port of the second exhaust channel (141) and the third exhaust channel (142). There is a gap between the second sealing screw (151) and the exhaust port that allows gas or liquid to pass through.

6. The underwater transfer box assembly according to claim 5, characterized in that, The outer casing has a first mating surface (211), and the first mating hole (181) is formed on the first mating surface (211). The first adapter module (31) has a second mating surface (712), and the third mating hole (183) is formed on the second mating surface (712). The first mating surface (211) and the second mating surface (712) are mated and fitted together, and the first sealing ring (77) and the second sealing ring (76) are located between the first mating surface (211) and the second mating surface (712). When the first mating surface (211) and the second mating surface (712) are mated, the gas located between the first mating surface (211) and the second mating surface (712) is discharged through the first exhaust channel (28).

7. The underwater transfer box assembly according to claim 6, characterized in that, The adapter module includes an adapter shaft (72), the end face of which has an axially protruding plug block. The adapter module has a mating hole on the plug block, and the outer casing has a groove at the mating hole. The plug block is inserted into the groove. The end face of the plug-in block is in contact with the bottom of the groove, the side wall of the plug-in block is in contact with the side wall of the groove, and the end face of the adapter shaft (72) is in contact with the outer wall of the outer shell. The groove for the plug block used to dock with the first adapter module (31) is the first groove (24). The side wall of the plug block of the first adapter module (31) is sealed with the side wall of the first groove (24) by a first sealing ring (77). The end face of the adapter shaft (72) of the first adapter module (31) is sealed with the outer wall of the outer shell by a second sealing ring (76). The first exhaust channel (28) is opened on the outer shell. One end of the first exhaust channel (28) is located on the side wall of the first groove (24), and the other end is connected to the external environment.

8. The underwater transfer box assembly according to claim 7, characterized in that, The groove for the plug block used to connect to the second adapter module (32) is the second groove (121), and the groove for the plug block used to connect to the third adapter module (33) is the third groove (122). The second groove (121) and the third groove (122) are separated by a partition. The partition has a first channel arranged radially along the transfer box and a second channel arranged axially along the transfer box. The two ends of the first channel are located on the groove walls of the two second grooves (121) and the third groove (122), respectively, for connecting the second grooves (121) and the third grooves (122). One end of the second channel is connected to the first channel, and the second channel is in communication with the external environment. The second exhaust passage (141) is formed from one end of the first channel located in the second groove (121) to the outlet of the second channel; the third exhaust passage (142) is formed from one end of the second channel located in the third groove (122) to the outlet of the second channel.

9. The underwater transfer box assembly according to claim 8, characterized in that, The first and second conductive terminals of the wiring module are conductive sockets (50), and the first and second conductive terminals are electrically connected by a wire (57). The third, fourth and fifth conductive terminals are pin modules (600), and the conductive sockets (50) are connected to the pin modules (600).

10. The underwater transfer box assembly according to claim 9, characterized in that, The adapter module (3) also includes a connecting sleeve (73) and a base (71). The adapter shaft (72) has two ends, A, which connects to the transfer box, and B, which connects to the connecting sleeve (73). One end of the connecting sleeve (73) is fitted onto the outside of the B end of the adapter shaft (72). The adapter shaft (72) has an installation space, and the base (71) is disposed within the installation space. The outer wall of the base (71) is provided with a seventh sealing groove along the circumference, and a seventh sealing ring (75) is provided in the seventh sealing groove. The outer wall of the base (71) and the inner wall of the adapter shaft (72) are sealed by the seventh sealing ring (75). A plurality of the pin modules (600) are provided in the base (71). The pin module (600) includes pins (60), one end of which is an insertion end. The insertion end extends from the docking hole of the docking module for docking with the conductive socket (50), and the other end of the pin (60) is a soldering end (59) for electrically connecting external cables. The pin module (600) further includes a second rubber sleeve (65) with one end covering the welding end (59) of the pin (60), and a second dielectric body (61) covering the outside of the pin. The end of the second rubber sleeve (65) connected to the pin (60) is fixed inside the base (71). The other end of the second rubber sleeve (65) has a wire through hole (66) that extends from end B of the adapter shaft (72). The wire through hole (66) is used for external cables to pass through and is press-fitted to the outer diameter of the external cable. After the external cable passes through the wire through hole (66), it is welded to the welding end (59) of the pin (60) to realize the electrical connection between the external cable and the pin (60). The outer wall of the welding end (59) of the pin (60) is provided with a second circumferential groove (69) along the circumferential direction, and the inner wall of the end of the second rubber sleeve (65) that is connected to the pin (60) is provided with a second circumferential protrusion (68) along the circumferential direction. The second circumferential protrusion (68) is inserted into the second circumferential groove (69). The outer wall of the pin (60) is provided with multiple rings of barbs (64) along the circumferential direction. The barbs (64) are used to fix the pin (60) inside the base (71). The second medium (61) is injection molded onto the outer wall of the pin (60). One end of the second medium (61) is fixed to the base (71), and the other end of the second medium (61) passes through the mating hole of the adapter module (3). The outer wall of the second medium (61) is provided with an eighth sealing groove along the circumference, and an eighth sealing ring (63) is installed in the eighth sealing groove. The second medium (61) is sealed to the A end of the adapter shaft (72) through the eighth sealing ring (63).

11. The underwater transfer box assembly according to claim 10, characterized in that, The conductive socket (50) includes a socket (51), a first dielectric body (54) covering the socket (51), and a first rubber sleeve (55) covering the first dielectric body (54). One end of the socket (51) is electrically connected to the end of the wire (57) by welding, and the other end of the socket (51) is for insertion of the pin (60). One end of the first rubber sleeve (55) is a through hole for the wire (57) to pass through, and is press-fitted to the outer diameter of the wire (57) for sealing. The other end of the first rubber sleeve (55) is a mating end (58). A first circumferential protrusion (56) is provided on the inner wall of the mating end (58) of the first rubber sleeve (55) along the circumferential direction. The outer wall of the second medium (61) is provided with a first circumferential groove (62) along the circumferential direction. When the pin (60) is inserted into the mating end (58) of the socket (51), the second medium (61) is inserted into the mating end (58) of the first rubber sleeve (55), and the first circumferential protrusion (56) is engaged in the first circumferential groove (62).

12. The underwater transfer box assembly according to claim 10, characterized in that, The outer casing includes a housing (1) and an end cap (2) that covers the housing (1). The connection between the housing (1) and the end cap (2) is sealed by a ninth sealing ring (17) and a tenth sealing ring (29). The end cap (2) is also provided with a fourth exhaust channel (26), which is used to connect the part between the ninth sealing ring (17) and the tenth sealing ring (29) to the external environment.

13. The underwater transfer box assembly according to claim 12, characterized in that, The end cap (2) includes an end cap (2) body and an annular step (23) located on one end face of the end cap (2) body. The annular step (23) is inserted into the housing (1), the end face of the end cap (2) body is in contact with the end face of the housing (1), the outer wall of the annular step (23) is sealed with the inner wall of the housing (1) by the ninth sealing ring (17), and the end face of the end cap (2) body is sealed with the end face of the housing (1) by the tenth sealing ring (29).

14. The underwater transfer box assembly according to claim 12, characterized in that, The hollow cavity (10) is filled with insulating medium oil. The side wall of the housing (1) is provided with an oil injection hole (11), which is used to inject oil into the hollow cavity (10).

15. The underwater transfer box assembly according to claim 12, characterized in that, The transfer box assembly also includes a steel plate (41) and U-shaped steel (42) with both ends fixed to the steel plate (41). The outer wall of the shell (1) is provided with a U-shaped steel channel (13), and the U-shaped steel (42) is inserted into the U-shaped steel channel (13). The U-shaped steel (42) fixes the shell (1) to the steel plate (41).

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