Underwater power supplement device

Abstract

This application belongs to the field of power supply technology for marine equipment and relates to an underwater power replenishment device for use in underwater navigation equipment. The device includes a sealed pressure chamber, a diesel generator for power generation, a foldable air intake unit for providing air to the diesel engine, an exhaust unit for exhausting exhaust gas generated by the diesel generator, a rigid water collection unit for collecting seawater flowing into the foldable air intake unit and the exhaust unit, and a control module for controlling the start and stop of the diesel generator. This application provides the necessary conditions for the operation of the diesel generator through the sealed pressure chamber, the foldable air intake unit, the rigid water collection unit, and the exhaust unit. This allows the underwater navigation equipment's power energy to be recharged multiple times, thereby improving its endurance.

Description

Technical Field

[0001] The present application belongs to the technical field of marine equipment, and specifically relates to an underwater power supplement device. Background Art

[0002] With the rapid development of marine engineering, the demand for underwater navigation equipment in fields such as marine environmental monitoring and resource exploration is increasing. Underwater navigation equipment (such as autonomous underwater vehicles (AUVs) and underwater robots) has become a key tool for ocean exploration.

[0003] Most traditional underwater navigation equipment uses single-battery energy as its power source. Battery energy has the advantages of small size, light weight, and no pollution, but its energy density is limited and its endurance is insufficient. As the requirements for the detection depth and navigation time of underwater navigation equipment continue to increase, the limitations of single-battery energy are becoming increasingly prominent. For example, in deep-sea exploration missions, underwater navigation equipment needs to stay underwater for a long time, and once the battery is exhausted, it cannot continue to work, resulting in mission interruption, affecting detection efficiency and data integrity. Therefore, it is necessary to design an underwater power replenishment device to charge the battery and other power sources of underwater navigation equipment to meet the power requirements of underwater vehicles in complex missions such as deep-sea exploration. Summary of the Invention

[0004] In response to the above-mentioned deficiencies in the prior art, the present application provides an underwater power supplement device with a compact structure and small size, which can realize multiple charging of the power energy of underwater navigation equipment and improve the endurance of underwater navigation equipment.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present application provides an underwater power supplement device, which comprises the following steps:

[0006] Sealed pressure chamber;

[0007] A diesel generator, located in a sealed pressure cabin, for generating electricity to charge the power energy of the underwater navigation equipment;

[0008] A foldable air intake unit connects the interior space of the sealed pressure cabin with the exterior space; a first air intake pipeline of the foldable air intake unit located in the sealed pressure cabin connects the air outlet pipe and the water collecting pipe, and an air outlet of the air outlet pipe connects with the interior space of the sealed pressure cabin; a first air intake solenoid valve is provided on the first air intake pipeline;

[0009] A rigid water collection unit is provided in the sealed pressure cabin and is located at the bottom of the sealed pressure cabin; the rigid water collection unit includes a water collection box, and the water inlet of the air inlet pipe of the water collection box is connected to the water outlet of the water collection pipe;

[0010] An exhaust unit, comprising:

[0011] A first exhaust pipeline is provided in the sealed pressure cabin and is located above the water collecting tank; the first exhaust pipeline is connected to the exhaust port of the diesel generator and the water collecting tank; the air outlet of the first exhaust pipeline is located in the upper space of the water collecting tank;

[0012] a second exhaust pipeline, communicating with the water collecting tank and the external space of the sealed pressure cabin, and provided with an exhaust solenoid valve; an air inlet of the second exhaust pipeline is located in the upper space of the water collecting tank;

[0013] A control module is provided in the sealed pressure chamber, and the control module is connected to the diesel generator, the first intake solenoid valve, and the exhaust solenoid valve; the control module is configured to control the start and stop of the diesel generator, and control the opening and closing of the intake solenoid valve and the exhaust solenoid valve.

[0014] In some embodiments, the sealed pressure chamber comprises:

[0015] The cabin body is provided with openings at both ends; a mounting hole is provided on the upper portion of the cabin body for connecting the interior space of the cabin body with the exterior space, and the mounting hole is used to install the first air intake pipe; a mounting bracket is provided on the top of the outer surface of the cabin body, and the mounting bracket is used to install the second air intake pipe of the foldable air intake unit located outside the sealed pressure cabin;

[0016] An assembly part is provided at the end opening of the cabin;

[0017] The first sealing component is connected to the assembly part through a connecting piece to seal the cabin.

[0018] In some embodiments, an annular reinforcement rib is provided on the outer surface of the cabin.

[0019] In some embodiments, the first sealing assembly includes a sealing head and a sealing ring disposed between the sealing head and the assembly part.

[0020] In some embodiments, the folding air intake unit comprises:

[0021] An air intake pipeline, the air intake pipeline comprising a first air intake pipeline and a second air intake pipeline, the first air intake pipeline and the second air intake pipeline being connected via a second sealing assembly; a second air intake solenoid valve connected to the control module is provided on the second air intake pipeline, and an air intake hole is provided on the second air intake pipeline above the second air intake solenoid valve;

[0022] an air outlet pipe communicating with the first air inlet pipe and the interior space of the sealed pressure cabin;

[0023] a water collecting pipe, communicating with the first air inlet pipeline and the air inlet of the water collecting tank;

[0024] The rotary drive assembly is connected to the lower end of the second air intake pipeline and is used to drive the second air intake pipeline to stand up and fold.

[0025] In some embodiments, the second sealing assembly includes an elbow, and a support ring is provided at one end of the elbow connected to the first air intake pipe; a sealing ring is provided between the end of the elbow connected to the first air intake pipe and the first air intake pipe.

[0026] In some embodiments, the rotary drive assembly includes a drive motor and a coupling connected to an output shaft of the drive motor, and the coupling is connected to a lower end portion of the second air intake line.

[0027] In some embodiments, the folding air intake unit also includes an infrared observation and antenna module for communicating with the underwater navigation equipment. The infrared observation and antenna module is installed on the top of the second air intake pipe and is used to observe and alarm sea surface objects when the diesel generator is working.

[0028] In some embodiments, a longitudinally placed movable baffle is provided in the water collecting tank, and the movable baffle divides the internal space of the water collecting tank into a first space and a second space. The water inlet of the air inlet pipe of the water collecting tank is located in the first space, and the air outlet of the first exhaust pipe and the air inlet of the second exhaust pipe are located in the second space.

[0029] In some embodiments, the rigid water collection unit further comprises:

[0030] a drainage pump installed on the upper surface of the water collecting tank, the water outlet of the drainage pump being connected to the external space of the sealed pressure cabin through a first main drainage pipeline, the first main drainage pipeline being provided with a main drainage valve; the drainage pump and the main drainage valve being both connected to the control module;

[0031] An air intake and water suction pipe is connected to the drainage water pump and the first space; an air intake and water suction valve connected to the control module is provided on the pipe section of the air intake and water suction pipe located outside the water collecting tank, the water outlet of the air intake and water suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the air intake and water suction pipe is located at the bottom of the first space;

[0032] An exhaust water suction pipe connects the drainage water pump and the second space; an exhaust water suction valve connected to the control module is provided on the pipe section of the exhaust water suction pipe located outside the water collecting tank, the water outlet of the exhaust water suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the exhaust water suction pipe is located at the bottom of the second space.

[0033] In some embodiments, the rigid water collection unit further comprises a liquid level sensor disposed in the water collection tank, the liquid level sensor comprising:

[0034] a first intake liquid level sensor, disposed in the first space, connected to the control module, for detecting an upper limit liquid level of water in the first space and transmitting the upper limit liquid level to the control module;

[0035] a second intake liquid level sensor, disposed in the first space, connected to the control module, for detecting a lower limit liquid level of water in the first space and transmitting the lower limit liquid level to the control module;

[0036] a first exhaust liquid level sensor, disposed in the second space, connected to the control module, for detecting an upper limit liquid level of water in the second space and transmitting the upper limit liquid level to the control module;

[0037] The second exhaust liquid level sensor is provided in the second space and is connected to the control module, and is used for detecting the lower limit liquid level of water in the second space and transmitting the lower limit liquid level to the control module.

[0038] In some embodiments, the underwater power replenishing device also includes a flexible water collecting unit provided in the sealed pressure cabin, and the flexible water collecting unit is located at the bottom of the sealed pressure cabin; the flexible water collecting unit includes a flexible container, and the water inlet pipe and the drainage pipe of the flexible container are both connected to the internal space of the water collecting tank, and the water inlet pipe is provided above the drainage pipe; a one-way valve is provided on the water inlet pipe of the flexible container, and when the water in the water collecting tank flows to the flexible container, the one-way valve is opened, and when the water in the flexible container flows to the water collecting tank, the one-way valve is closed; a drain valve is provided on the drainage pipe of the flexible container, and when water is drained through the drainage pipe, the drain valve is opened.

[0039] In some embodiments, the underwater power supplement device further includes a heat dissipation unit, which includes a fixed heat dissipation module and a coiled pipe heat dissipation module. The fixed heat dissipation module and the coiled pipe heat dissipation module are connected to the external space of the sealed pressure cabin through a main water inlet pipeline and a second main drainage pipeline. The main water inlet pipeline is provided with a main water inlet solenoid valve connected to the control module, and the second main drainage pipeline is provided with a main drainage solenoid valve connected to the control module.

[0040] The fixed heat dissipation module includes:

[0041] A heat dissipation housing, wherein a cooling water pipe and a cooling circulating water pump connected to the control module are provided in the heat dissipation housing, and a water outlet of the cooling circulating water pump is connected to a water inlet of the cooling water pipe;

[0042] A cooling water inlet pipeline, wherein the water inlet of the cooling water inlet pipeline is connected to the water outlet of the main water inlet pipeline, the water outlet of the cooling water inlet pipeline is connected to the water inlet of the cooling circulation water pump, and the cooling water inlet pipeline is provided with a water inlet solenoid valve connected to the control module;

[0043] a cooling water outlet pipeline, wherein the water inlet of the cooling water outlet pipeline is connected to the water outlet of the cooling water pipeline, the water outlet of the cooling water outlet pipeline is connected to the water inlet of the second main drainage pipeline, and the cooling water outlet pipeline is provided with a drainage solenoid valve connected to the control module;

[0044] At least one fan assembly connected to the control module, the fan assembly being in communication with the interior of the heat dissipation housing; the fan assembly comprising an intake fan disposed on one side of the heat dissipation housing and an exhaust fan disposed on the other side of the heat dissipation housing;

[0045] The coil heat dissipation module includes a coil wound around the inner wall of the sealed pressure chamber, the water inlet of the coil is connected to the water outlet of the main water inlet pipeline, and the water outlet of the coil is connected to the water inlet of the second main drainage pipeline.

[0046] In the second aspect of the present application, an underwater navigation device is provided, which includes an underwater vehicle and an underwater power replenishment device installed on the underwater vehicle. The underwater power replenishment device adopts the underwater power replenishment device described in the embodiment of the first aspect of the present application. The diesel generator of the underwater power replenishment device is connected to the battery energy of the underwater vehicle to charge the battery energy.

[0047] Compared with the prior art, the advantages and positive effects of this application are:

[0048] (1) The underwater power supplement device provided by this application provides the necessary conditions for the operation of the diesel generator through a sealed pressure chamber, a foldable air intake unit, a rigid water collection unit, and an exhaust unit. The sealed pressure chamber provides pressure protection for the diesel engine and other devices located in the sealed pressure chamber, the foldable air intake unit provides air for the diesel engine to generate electricity, the exhaust unit discharges the exhaust gas generated by the diesel generator, and the rigid water collection unit collects seawater flowing in from the foldable air intake unit and the exhaust unit. This application can realize multiple charging of the power energy of underwater navigation equipment, thereby improving the endurance of underwater navigation equipment.

[0049] (2) In the underwater power supplement device provided in the present application, the movable baffle in the water collecting tank divides the internal space of the water collecting tank into a first space and a second space. On the one hand, the movable baffle can automatically adjust its position according to the pressure difference of seawater in the first space and the second space, adjust the volume of seawater in the two spaces, and prevent seawater from flowing back into the diesel generator; on the other hand, the movable baffle can isolate the exhaust gas discharged by the diesel generator and the air entering the folded air intake unit to avoid affecting the quality of the incoming air.

[0050] (3) The underwater power supplement device provided in this application discharges the seawater collected by the rigid water collection unit through a drainage pump, an air intake suction pipe and an exhaust suction pipe when the seawater collected in the water collection tank reaches a preset value, thereby preventing the seawater collected in the water collection tank from flowing back into the diesel generator.

[0051] (4) The underwater power supplement device provided in the present application detects the seawater level in the water collecting tank through a liquid level sensor. When the seawater level in the water collecting tank reaches the upper limit, the control module controls the drainage pump to operate, and the seawater in the water collecting tank is discharged through the drainage pump. When the seawater level in the water collecting tank is lower than the lower limit, the control module controls the drainage pump to stop working.

[0052] (5) The underwater power supplement device provided in this application is also provided with a flexible water collection unit. When collecting seawater, the seawater filled into the flexible water collection unit will automatically adhere to the narrow pores in the sealed pressure chamber. Combining the flexible water collection unit with the rigid water collection unit can increase the total water collection capacity.

[0053] (6) The underwater power supplement device provided in this application is also provided with a heat dissipation unit, which includes a fixed heat dissipation module and a coiled heat dissipation module. The fixed heat dissipation module and the coiled heat dissipation module are combined to make full use of the irregular space in the sealed pressure cabin and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is a schematic diagram of the planar structure of the underwater power supplement device according to an embodiment of the present application;

[0055] Figure 2 This is a schematic structural diagram of the sealed pressure cabin described in an embodiment of the present application;

[0056] Figure 3 This is a schematic structural diagram of a sealed pressure cabin with two cabins according to an embodiment of the present application;

[0057] Figure 4 This is a schematic structural diagram of the foldable air intake unit according to an embodiment of the present application;

[0058] Figure 5 This is a schematic structural diagram of the second sealing assembly and the rotary drive assembly according to an embodiment of the present application;

[0059] Figure 6 This is a structural diagram of the rigid water collection unit described in an embodiment of the present application;

[0060] Figure 7 This is a schematic cross-sectional view of the rigid water collection unit according to an embodiment of the present application;

[0061] Figure 8 for Figure 7 A magnified view of part G;

[0062] Figure 9 This is a schematic structural diagram of the exhaust unit described in an embodiment of the present application;

[0063] Figure 10 This is a structural diagram of the flexible water collection unit described in an embodiment of the present application;

[0064] Figure 11 This is a structural diagram of the fixed heat dissipation module according to an embodiment of the present application;

[0065] Figure 12 This is a schematic structural diagram of the coiled tube heat dissipation module according to an embodiment of the present application;

[0066] Figure 13 This is a control principle diagram of the underwater power supplement device described in an embodiment of the present application.

[0067] In the figure, 1. Sealed pressure cabin, 101. Cabin body, 1011. Mounting hole, 1012. Mounting frame, 1013. Mounting slide rail, 1014. Annular reinforcement rib, 102. Assembly part, 103. First sealing assembly, 1031. Head, 1032. First sealing ring, 104. Connector, 105. Inner wall of pressure cabin, 2. Diesel generator, 201. Diesel generator oil inlet, 202. Diesel generator oil return port, 203. Power consumption equipment interface, 301. First air inlet pipe, 302. Air outlet pipe, 303. Water collecting pipe, 304. First air inlet solenoid valve, 305. Second air inlet pipe, 306. Second sealing assembly, 3 061. Elbow, 3062. Support ring, 3063. Second sealing ring, 307. Second air intake solenoid valve, 308. Air intake hole, 309. Rotary drive assembly, 3091. Drive motor, 3092. Coupling, 310. Infrared observation and antenna module, 401. Water collecting tank, 4011. Air intake pipe water inlet, 4012. Special-shaped structure, 4013. Conventional structure, 402. Movable baffle, 403. First space, 404. Second space, 405. Third sealing ring, 406. Drainage pump, 407. First main drainage pipeline, 408. Main drainage valve, 409. Air intake suction pipe, 410. Air intake suction valve, 411. Exhaust water suction pipe, 412. Exhaust water suction valve, 413. First air intake level sensor, 414. Second air intake level sensor, 415. First exhaust level sensor, 416. Second exhaust level sensor, 501. First exhaust pipeline, 502. Second exhaust pipeline, 503. First exhaust solenoid valve, 504. Second exhaust solenoid valve, 505. Surge protection device, 601. Flexible container, 602. Water inlet pipeline, 603. Drain pipeline, 604. One-way valve, 605. Drain valve, 7. Fixed heat dissipation module, 701. Heat dissipation housing, 702. Cooling water pipeline, 703. Cooling circulation water pump, 704. Cooling Water inlet pipeline, 7041, water inlet of cooling water inlet pipeline, 705, water inlet solenoid valve, 706, cooling water outlet pipeline, 7061, water outlet of cooling water outlet pipeline, 707, drain solenoid valve, 708, first air intake fan, 709, first exhaust fan, 710, second air intake fan, 711, second exhaust fan, 801, coil, 9, control module, 901, external control bus interface, 10, main water inlet pipeline, 1001, main water inlet solenoid valve, 11, second main drain pipeline, 1101, main drain solenoid valve, 12, temperature sensor, 13, AUV main control system, B, seawater, C, welding area. DETAILED DESCRIPTION

[0068] The present application is described in detail below by way of exemplary embodiments, but it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0069] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0070] The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of such features.

[0071] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0072] To address the issues of insufficient endurance in existing underwater navigation equipment, this application provides an underwater power replenishment device. Through its structural design, the device can operate underwater or near the surface to recharge the battery energy source of the underwater navigation equipment. The following, in conjunction with the accompanying drawings, provides a detailed description of the underwater power replenishment device and underwater navigation equipment provided by this application.

[0073] See also Figures 1 to 13, the first aspect embodiment of the present application provides an underwater power replenishment device, including a sealed pressure cabin 1, a diesel generator 2, a foldable air intake unit, a rigid water collection unit, an exhaust unit and a control module 9. The diesel generator 2 is arranged in the sealed pressure cabin 1, and is used to generate electricity to charge the power energy of the underwater navigation equipment. The foldable air intake unit connects the internal space and the external space of the sealed pressure cabin 1, and provides an air intake channel for the diesel engine to generate electricity. The rigid water collection unit is arranged in the sealed pressure cabin 1, at the bottom of the sealed pressure cabin 1, and is used to collect seawater flowing in from the foldable air intake unit and the exhaust unit. The exhaust unit is used to discharge the exhaust gas generated by the diesel generator. The control module 9 is used to control the start and stop of the diesel generator 2, and to control the air intake and exhaust.

[0074] Specifically, the diesel generator 2 is connected to an external fuel supply device via the diesel generator oil inlet 201 to obtain diesel fuel for power generation. The diesel generator 2 is connected to the external fuel supply device via the diesel generator oil return port 202 to return unused fuel to the external fuel supply device to maintain a balanced fuel supply pressure. The diesel generator 2 is connected to the power source of the underwater navigation equipment via the power consumption device interface 203 to charge the power source.

[0075] Specifically, the foldable air intake unit is located in the sealed pressure cabin 1. The first air intake pipeline 301 is connected to the air outlet pipe 302 and the water collecting pipe 303. The air outlet of the air outlet pipe 302 is connected to the internal space of the sealed pressure cabin 1. The first air intake pipeline 301 is provided with a first air intake solenoid valve 304.

[0076] Specifically, the rigid water collection unit includes a water collection box 401 , and the water inlet of the air inlet pipe of the water collection box 401 is connected to the water outlet of the water collection pipe 303 .

[0077] Specifically, the exhaust unit includes:

[0078] The first exhaust pipe 501 is provided in the sealed pressure cabin 1 and is located above the water collecting tank 401. The first exhaust pipe 501 connects the exhaust port of the diesel generator and the water collecting tank 401. The outlet of the first exhaust pipe 501 is located in the upper space of the water collecting tank 401.

[0079] A second exhaust pipe 502 connects the water collecting tank 401 with the external space of the sealed pressure chamber 1. An exhaust solenoid valve is provided on the second exhaust pipe 502. The air inlet of the second exhaust pipe 502 is located in the upper space of the water collecting tank 401.

[0080] The control module 9 is arranged in the sealed pressure cabin 1, and the control module 9 is connected to the diesel generator 2, the first air intake solenoid valve 304, and the exhaust solenoid valve; the control module 9 is configured to: control the start and stop of the diesel generator 2, and control the opening and closing of the first air intake solenoid valve 304 and the exhaust solenoid valve.

[0081] Specifically, in some embodiments, the sealed pressure cabin 1 includes a cabin body 101 , an assembly part 102 and a first sealing component 103 .

[0082] The cabin body 101 is provided with openings at both ends. The upper part of the cabin body 101 is provided with a mounting hole 1011 connecting the internal space of the cabin body 101 and the external space, and the mounting hole 1011 is used to install the first air intake pipe 301. The top of the outer surface of the cabin body 101 is provided with a mounting frame 1012, and the mounting frame 1012 is used to install the second air intake pipe 305 of the folding air intake unit located outside the sealed pressure cabin 1. The mounting frame 1012 supports and fixes the second air intake pipe. The bottom of the cabin body 101 is provided with a mounting rail 1013, and the diesel generator 2 is installed on the bottom of the cabin body through the mounting rail 1013. By installing the diesel generator 2 through the mounting rail 1013, the diesel generator 2 can be quickly assembled, thereby improving assembly efficiency.

[0083] The assembly part 102 is provided at the end opening of the cabin body 101 .

[0084] The first sealing component 103 is connected to the assembly part 102 via a connector 104 to seal the cabin 101 .

[0085] Specifically, in a specific implementation manner of the first embodiment of the present application, the assembly part 102 is a sealing flange, which uses a standard joint and can be assembled quickly, thereby improving assembly efficiency.

[0086] In some embodiments, there is at least one cabin 101. When there are two or more cabins 101, adjacent cabins 101 are connected by the assembly parts 102 and the connectors 104. When the space of the sealed pressure cabin 1 needs to be expanded, the interior space of the sealed pressure cabin 1 is expanded by the assembly parts 102 and the connectors 104. For example: Figure 2 There are two cabins 101. Compared with one cabin, the internal space of the sealed pressure cabin 1 is larger after the two cabins are matched with the assembly parts 102 and the connecting parts 104. Figure 2 In the figure, A is the extended docking position.

[0087] In some embodiments, an annular reinforcement rib 1014 is provided on the outer surface of the cabin body 101 to increase the pressure bearing capacity of the sealed pressure cabin.

[0088] In some embodiments, the first sealing assembly 103 includes a sealing head 1031 and a first sealing ring 1032 disposed between the sealing head 1031 and the assembly 102. The sealing effect of the first sealing ring 1032 tightly combines the sealing head 1031 with the cabin 101, thereby improving the waterproof capability of the sealed pressure cabin 1.

[0089] Specifically, in the first embodiment of the present application, the connector 104 is a locking bolt assembly structure composed of a bolt and a nut. The bolt passes through the assembly holes provided on the assembly part 102 and the head 1031 and cooperates with the nut to lock the cabin 101 and the first sealing assembly 103.

[0090] Specifically, in some embodiments, the folding air intake unit includes:

[0091] The air intake pipeline includes a first air intake pipeline 301 and a second air intake pipeline 305. The first air intake pipeline 301 and the second air intake pipeline 305 are connected through a second sealing assembly 306. The second air intake pipeline 305 is provided with a second air intake solenoid valve 307 connected to the control module 9. An air intake hole 308 is provided on the second air intake pipeline above the second air intake solenoid valve 307.

[0092] An air outlet pipe 302 is connected to the first air inlet pipe 301 and the internal space of the sealed pressure cabin 1;

[0093] The water collecting pipe 303 is connected to the first air inlet pipeline 301 and the air inlet pipe water inlet 4011 of the water collecting tank 401;

[0094] The rotation drive assembly 309 is connected to the lower end of the second air inlet pipe 305 and is used to drive the second air inlet pipe 305 to stand up and fold.

[0095] When the underwater power replenishment device is working, the air entering from the foldable air intake unit enters the sealed pressure cabin 1 through the air outlet pipe 302, providing air for the diesel generator 2 to generate electricity. The seawater flowing in from the foldable air intake unit is collected in the water collection tank 401 through the water collection pipe 303.

[0096] Specifically, in a specific embodiment of the present application, the outlet pipe 302 is a curved pipe, and the end of the outlet pipe 302 that communicates with the interior space of the sealed pressure chamber 1 is higher than the end that communicates with the first air inlet pipe 301. The outlet pipe is configured as a curved pipe, which can effectively prevent seawater flowing in from the first air inlet pipe 301 from entering the sealed pressure chamber 1.

[0097] In some embodiments, the second sealing assembly 306 includes an elbow 3061. A support ring 3062 is provided at one end of the elbow 3061 that communicates with the first air inlet pipe 301. A second sealing ring 3063 is provided between the end of the elbow 3061 that communicates with the first air inlet pipe 301 and the first air inlet pipe 301. The second sealing assembly provides a rotational sealing passage between the first and second air inlet pipes, preventing seawater from entering the second air inlet pipe when the second air inlet pipe rotates.

[0098] Specifically, in some embodiments, the rotation drive assembly 309 includes a drive motor 3091 and a coupling 3092 connected to the output shaft of the drive motor 3091. The coupling 3092 is connected to the lower end of the second air inlet pipe 305. The drive motor 3091 drives the second air inlet pipe 305 to erect and fold via the coupling 3092. When the drive motor 3091 drives the second air inlet pipe 305 to an upright position via the coupling 3092, the drive motor 3091 self-locks after reaching a predetermined position, securing the second air inlet pipe 305. When the air inlet passage is open, the second air inlet pipe 305 is in an upright position, and the height of the air inlet is increased, effectively reducing the influx of seawater into the second air inlet pipe 305.

[0099] In some embodiments, the folding air intake unit further includes an infrared observation and antenna module 310, which is installed on the top of the second air intake pipe 305 and is used to observe and alarm the sea surface environment when the diesel generator 2 is working.

[0100] In some embodiments, a longitudinally positioned movable baffle 402 is provided within the water collecting tank 401. The movable baffle 402 divides the internal space of the water collecting tank 401 into a first space 403 and a second space 404. The water inlet of the air intake pipe of the water collecting tank 401 is located within the first space 403, and the air outlet of the first exhaust pipe 501 and the air inlet of the second exhaust pipe 502 are located within the second space 404. The movable baffle 402 within the water collecting tank 401 divides the internal space of the water collecting tank 401 into the first space 403 and the second space 404. On the one hand, the movable baffle 402 can automatically adjust its position according to the seawater pressure difference between the two spaces to adjust the volume of seawater in the two spaces and prevent seawater from backflowing into the diesel generator 2. On the other hand, the movable baffle 402 can isolate the exhaust gas discharged by the diesel generator 2 from the air entering the foldable air intake unit to avoid affecting the quality of the incoming air.

[0101] Specifically, in some specific implementations of the present invention, a third sealing ring 405 is provided between the movable baffle 402 and the inner wall of the water collecting tank 401. The third sealing ring 405 effectively prevents gas and water in the first space 403 from entering the second space 404, and vice versa.

[0102] It should be noted that in order to reduce the impact on the air entering the first space 403 and to reduce the volume of the water collecting tank 401, in some specific implementations of the embodiments of the present application, the water collecting tank 401 is configured as a whole as a special-shaped structure part 4012 (profiling structure) + a conventional structure part 4013 (such as: a semicircular body, a cube, a rectangular parallelepiped, etc.), which can fully utilize the effective volume in the sealed pressure cabin 1.

[0103] In some embodiments, the rigid water collection unit further comprises:

[0104] A drainage pump 406 is installed on the upper surface of the water collecting tank 401. The water outlet of the drainage pump 406 is connected to the external space of the sealed pressure cabin 1 through a first main drainage pipeline 407. The first main drainage pipeline 407 is provided with a main drainage valve 408. The drainage pump 406 and the main drainage valve 408 are both connected to the control module 9.

[0105] An air intake and water suction pipe 409 connects the drainage water pump 406 and the first space 403; an air intake and water suction valve 410 connected to the control module 9 is provided on the pipe section of the air intake and water suction pipe 409 located outside the water collecting tank 401; the water outlet of the air intake and water suction pipe 409 is connected to the water inlet pipe of the drainage water pump 406; and the water inlet of the air intake and water suction pipe 409 is located at the bottom of the first space 403;

[0106] The exhaust water suction pipe 411 connects the drainage water pump 406 and the second space 404; the exhaust water suction pipe 411 is located on the pipe section outside the water collecting tank 401 and is provided with an exhaust water suction valve 412 connected to the control module 9, the water outlet of the exhaust water suction pipe 411 is connected to the water inlet pipe of the drainage water pump 406, and the water inlet of the exhaust water suction pipe 411 is located at the bottom of the second space 404.

[0107] When the seawater collected in the first space reaches a set upper limit threshold, the drainage pump 406 is turned on, and the air intake valve 410 and the main drainage valve 408 are opened. The water in the first space 403 is discharged to the outside of the sealed pressure cabin 1 through the drainage pump 406 via the air intake pipe 409, the drainage pump 406 and the first main drainage pipeline 407.

[0108] When the seawater collected in the second space reaches a set upper threshold, the drainage pump 406 is turned on, and the exhaust water intake valve 412 and the main drainage valve 408 are opened. The water in the second space 404 is discharged to the outside of the sealed pressure cabin 1 through the drainage pump 406 via the exhaust water intake pipe 411, the drainage pump 406 and the first main drainage pipeline 407.

[0109] In some embodiments, the rigid water collection unit further includes a liquid level sensor disposed in the water collection tank 401, and the liquid level sensor includes:

[0110] A first intake liquid level sensor 413 is provided in the first space 403 and is connected to the control module 9 to detect the upper limit liquid level of water in the first space 403 and transmit the upper limit liquid level to the control module 9;

[0111] A second intake liquid level sensor 414 is provided in the first space 403 and is connected to the control module 9 to detect the lower limit liquid level of the water in the first space 403 and transmit the lower limit liquid level to the control module 9;

[0112] A first exhaust liquid level sensor 415 is provided in the second space 404 . The first exhaust liquid level sensor 415 is connected to the control module 9 and is used to detect the upper limit liquid level of water in the second space 404 and transmit the upper limit liquid level to the control module 9 .

[0113] The second exhaust liquid level sensor 416 is disposed in the second space 404 and is connected to the control module 9 for detecting the lower limit liquid level of water in the second space 404 and transmitting the lower limit liquid level to the control module 9 .

[0114] The upper limit of the water level in the first space 403 is detected by a first intake liquid level sensor 413 and transmitted to the control module 9. When the water level in the first space 403 reaches the upper limit, the control module 9 controls the drainage pump 406 to start, and controls the intake water valve 410 and the main drainage valve 408 to open. The drainage pump 406 then discharges the water in the first space 403 out of the sealed pressure chamber 1 through the intake water pipe 409, the drainage pump 406, and the first main drainage pipeline 407. The lower limit of the water level in the first space 403 is detected by a second intake liquid level sensor 414 and transmitted to the control module 9. When the water level in the first space 403 falls below the lower limit, the control module 9 controls the intake water valve 410 and the main drainage valve 408 to close to prevent seawater from flowing back into the water collection tank 401. The control module 9 also controls the drainage pump 406 to stop operating.

[0115] The upper limit level of the water in the second space 404 is detected by the first exhaust liquid level sensor 415 and uploaded to the control module 9. When the water level in the second space 404 reaches the upper limit level, the control module 9 controls the drainage pump 406 to start, and controls the exhaust water intake valve 412 and the main drainage valve 408 to open. The drainage pump 406 discharges the water in the second space 404 through the exhaust water intake pipe 411, the drainage pump 406, and the first main drainage pipeline 407 to the outside of the sealed pressure chamber 1. The lower limit level of the water in the second space 404 is detected by the second exhaust liquid level sensor 416 and uploaded to the control module 9. When the water level in the second space 404 falls below the lower limit level, the control module 9 controls the exhaust water intake valve 412 and the main drainage valve 408 to close to prevent seawater from flowing back into the water collection tank 401. At the same time, the control module 9 controls the drainage pump 406 to stop working.

[0116] In some embodiments, the exhaust solenoid valve includes a first exhaust solenoid valve 503 provided on the section of the second exhaust line 502 located within the sealed pressure chamber 1. The exhaust solenoid valve can effectively prevent seawater from flowing back into the vessel.

[0117] In some embodiments, the exhaust solenoid valves include a first exhaust solenoid valve 503 located on the section of the second exhaust pipeline 502 located inside the sealed pressure chamber 1, and a second exhaust solenoid valve 504 located on the section of the second exhaust pipeline located outside the sealed pressure chamber. By using two exhaust solenoid valves, if one exhaust solenoid valve fails, the other exhaust solenoid valve can still prevent seawater from flowing back.

[0118] In some embodiments, the exhaust unit further includes an anti-surge device 505, which is connected to the end of the second exhaust pipe 502 located outside the sealed pressure chamber 1. The anti-surge device 505 can further reduce the influx of seawater and prevent seawater backflow.

[0119] In some embodiments, the underwater power replenishment device further includes a flexible water collection unit disposed within the sealed pressure chamber 1, located at the bottom of the sealed pressure chamber 1. The flexible water collection unit includes a flexible container 601. Both an inlet pipe 602 and a drain pipe 603 of the flexible container 601 communicate with the interior of the water collection tank 401, with the inlet pipe 602 disposed above the drain pipe 603. A one-way valve is provided on the inlet pipe 602 of the flexible container 601. When water from the water collection tank 401 flows into the flexible container 601, the one-way valve 604 opens; when water from the flexible container 601 flows into the water collection tank 401, the one-way valve 604 closes. The one-way valve allows water to flow only from the water collection tank into the flexible container, preventing water from flowing back into the water collection tank, thereby increasing the water collection capacity. The drainage pipe 603 of the flexible container 601 is provided with a drainage valve 605 connected to the control module 9. When water is drained through the drainage pipe 603, the control module 9 controls the drainage valve 605 to open. When water is drained by the drainage pump 406, the control module 9 controls the drainage valve 605 to open, allowing water in the flexible container to flow into the water collection tank for discharge by the drainage pump.

[0120] It should be noted that the flexible container 601 is made of flexible material (such as rubber, etc.). When water flows into the flexible container, the flexible container 601 can automatically fill the empty space in the sealed pressure cabin 1. When used in conjunction with the water collecting tank 401, it can increase the water collection capacity.

[0121] In some embodiments, the underwater power supplement device also includes a heat dissipation unit, which includes a fixed heat dissipation module 7 and a coil heat dissipation module. The fixed heat dissipation module 7 and the coil heat dissipation module are connected to the external space of the sealed pressure cabin 1 through a main water inlet pipe 10 and a second main drainage pipe 11. The main water inlet pipe 10 is provided with a main water inlet solenoid valve 1001 connected to the control module 9, and the second main drainage pipe 11 is provided with a main drainage solenoid valve 1101 connected to the control module 9.

[0122] Specifically, the fixed heat dissipation module 7 includes:

[0123] A heat dissipation housing 701 is provided with a cooling water pipe 702 and a cooling circulating water pump 703 connected to the control module 9 , and a water outlet of the cooling circulating water pump 703 is connected to a water inlet of the cooling water pipe 702 ;

[0124] A cooling water inlet pipe 704, wherein the water inlet 7041 of the cooling water inlet pipe is connected to the water outlet of the main water inlet pipe 10, and the water outlet of the cooling water inlet pipe 704 is connected to the water inlet of the cooling circulation water pump 703. The cooling water inlet pipe 704 is provided with a water inlet solenoid valve 705 connected to the control module 9;

[0125] A cooling water outlet pipe 706, the water inlet of the cooling water outlet pipe 706 is connected to the water outlet of the cooling water pipe 702, the water outlet 7061 of the cooling water outlet pipe is connected to the water inlet of the second main drainage pipe 11, and the cooling water outlet pipe 706 is provided with a drainage solenoid valve 707 connected to the control module 9;

[0126] At least one fan assembly connected to the control module, the fan assembly is communicated with the interior of the heat dissipation housing 701; the fan assembly includes an intake fan arranged on one side of the heat dissipation housing 701 and an exhaust fan arranged on the other side of the heat dissipation housing 701.

[0127] During heat dissipation, the cooling water pump 703 drives the cooling seawater to flow in the cooling water pipe 702, and the fan assembly blows the hot air along the cooling water pipe 702. Figure 11 The hot air is sucked and discharged from the heat dissipation housing 701 in the direction of the middle arrow. The hot air passes through the surface of the cooling water, and the heat is taken away by the cooling water to achieve heat dissipation.

[0128] Specifically, in a specific implementation of an embodiment of the present application, the fan assembly is provided with two groups. The first fan assembly includes a first intake fan 708 and a first exhaust fan 709. The first intake fan 708 is provided at the bottom side of the heat dissipation housing 701, and the first exhaust fan 709 is provided at the top side of the heat dissipation housing 701. The second fan assembly includes a second intake fan 710 and a second exhaust fan 711. The second intake fan 710 is provided at the top side of the heat dissipation housing 701, and the second exhaust fan 711 is provided at the bottom side of the heat dissipation housing 701. There are two groups of fan assemblies, and the two groups of fan assemblies can serve as backup fan assemblies for each other. When heat dissipation is performed, one group of fan assemblies is in operation, and through the action of the intake fan and the exhaust fan, the hot air in the sealed pressure cabin 1 passes through the inside of the heat dissipation housing 701, is cooled by the cooling water, and the heat is taken away. Once a failure occurs in this group of fan assemblies, the other group of fan assemblies is started to perform heat dissipation.

[0129] Specifically, the coil heat dissipation module includes a coil 801 wound around the inner wall 105 of the sealed pressure chamber. The water inlet of the coil 801 is connected to the water outlet of the main water inlet pipeline 10, and the water outlet of the coil 801 is connected to the water inlet of the second main drainage pipeline 11. Cooling seawater flows into the coil to dissipate heat.

[0130] Specifically, in a specific embodiment of the present application, the coil 801 is welded to the inner wall 105 of the sealed pressure chamber. By welding the coil to the inner wall 105 of the sealed pressure chamber, the welded area can increase the solid thermal conductivity, thereby increasing the heat dissipation capacity of the underwater power supplement device.

[0131] Specifically, in a specific implementation of the first embodiment of the present application, the distance L between adjacent windings can be adjusted. By adjusting the distance L, the heat dissipation capacity can be adjusted.

[0132] Specifically, in some embodiments, the control module 9 controls the start and stop of the diesel generator and various water pumps, as well as the opening and closing of various valves within the cabin, via the cabin control line 14. The control module 9 is provided with an external control bus interface 901, through which the control module 9 communicates with the underwater vehicle's main control system and a bus (e.g., a CAN bus). For example, when the underwater vehicle's main control system detects that the battery needs to be charged, it sends a charging instruction to the control module 9. Upon receiving the charging instruction, the control module 9 controls the underwater power supply device to operate and initiate charging. When the underwater vehicle's main control system detects that the battery is fully charged, it sends a stop charging instruction to the control module 9, causing the control module 9 to stop the underwater power supply device.

[0133] When the underwater power supplement device mentioned in the present application is used, it can be integrated as a whole into underwater navigation equipment (for example: AUV, underwater submersible, etc.), and can dive and surface together with the underwater navigation equipment.

[0134] The working process is described by taking the above-mentioned underwater power supplement device of the present application mounted on an AUV as an example. The working process is mainly divided into the floating charging process and the floating deep diving process.

[0135] Floating charging process: When the AUV needs to be charged, the AUV floats to a position near the water surface. The underwater power replenishment device of this application starts working according to the following steps:

[0136] S1. Folding air intake unit

[0137] Drive motor 3091 drives the folding air intake unit to an upright position, and upon reaching the desired position, motor 3091 self-locks, securing second air intake duct 305. The infrared observation and antenna module 310 performs autonomous communications and monitors the sea surface environment. When encountering a vessel or other surface condition, it generates a warning signal and transmits it to the AUV, enabling the AUV to autonomously maneuver and avoid the obstacle.

[0138] S2, open the intake and exhaust channels

[0139] The control module 9 first performs a programmatic self-check. After meeting the preset conditions, the control module 9 controls the opening of the second air intake solenoid valve 307, the first air intake solenoid valve 304, the first exhaust solenoid valve 503, and the second exhaust solenoid valve 504 in sequence to ensure that the intake and exhaust channels of the diesel generator are open.

[0140] S3. Start water collection and drainage function

[0141] Because the air inlet and outlet passages are open, seawater will flow in through the air inlet 308 and the anti-surge device 505. The seawater will first enter the water collection tank 401. When the seawater depth reaches the water inlet of the water inlet pipe 602, the seawater can flow into the flexible container 601 through the one-way valve 604. When the amount of seawater flowing into the air inlet 308 and the anti-surge device 505 is different, the movable baffle 402 can automatically move under the action of the water to adjust the water collection volume. When the water level in the water collection tank 401 reaches the upper limit, the control module 9 controls the drainage pump 406 to open, and the drainage pump 406 also controls the air intake valve 410, the exhaust valve 412, and the main drainage valve 408 to open. The drainage pump 406 discharges the water in the first space 403 through the air intake pipe 409, the drainage pump 406, and the first main drainage pipe 407 to the outside of the sealed pressure chamber 1. When the water level in the water collecting tank 401 is lower than the water inlet pipe 602 and higher than the drain pipe 603, the control module 9 controls the drain valve 605 to open, and the water in the flexible container 601 begins to be discharged into the water collecting tank 401 and discharged to the outside of the sealed pressure chamber 1 by the drain pump 406. When the water in the water collecting tank 401 is lower than the drain pipe 603, the water in the flexible container 601 is completely drained, and the control module 9 controls the drain valve 605 to close, and the flexible container 601 prepares to collect seawater next time. When the seawater level in the water collecting tank 401 is lower than the lower limit level, the control module 9 controls the drain pump 406, the air intake valve 410, the exhaust valve 412, and the main drain valve 408 to close, completing the drainage. The air intake and exhaust drainage can be drained separately according to the seawater level in the space where they are located.

[0142] S4. Turn on the cooling function

[0143] The control module 9 turns on the air intake fan and the exhaust fan to circulate the air in the sealed pressure cabin 1; then opens the water inlet solenoid valve 705, the water discharge solenoid valve 707, the main water inlet solenoid valve 1001, and the main water discharge solenoid valve 1101 in sequence, starts the cooling circulation water pump 703, and turns on the overall circulation cooling to dissipate heat.

[0144] S5. Start the diesel generator

[0145] The control module 9 checks the foldable air intake unit, rigid water collection unit, exhaust unit, flexible water collection unit, fixed heat dissipation module 7, and coiled heat dissipation module. If all tests are normal, it controls the diesel generator 2 to start generating electricity and charge the AUV battery. During the charging process, the underwater power replenishment device is tested in real time. If there is an early warning, the diesel generator 2 is shut down. The control module 9 performs relevant program self-tests and repairs. If the self-repair is unable to be carried out, a warning message is sent to the shore station command center.

[0146] Diving process:

[0147] When the main control system 13 of the AUV detects that the battery of the AUV is fully charged, the main control system 13 of the AUV sends an instruction to the control module 9 of the underwater power replenishment device 100, and the control module 9 controls the diesel generator 2 to stop working and close the air intake and exhaust channels. When the temperature sensor 12 provided in the sealed pressure cabin 1 detects that the temperature in the sealed pressure cabin 1 meets the diving temperature, the control module 9 controls to turn off the heat dissipation function. When it is detected that the liquid level in the water collecting tank 401 is lower than the lower limit level, the water collecting and drainage function is turned off. The control module 9 controls the drive motor 3091 to fold the second air intake pipe 305 of the folding air intake unit and lock it in a predetermined position. The control module 9 starts to perform a closed state self-check. When all the preset values ​​are reached, a diving instruction is sent to the main control system 13 of the AUV, and the entire AUV can dive.

[0148] The closing order of each valve body in each functional module is opposite to that of opening.

[0149] The second aspect embodiment of the present application provides an underwater navigation device, which includes an underwater vehicle and an underwater power replenishment device installed on the underwater vehicle. The underwater power replenishment device adopts the underwater power replenishment device described in the first aspect embodiment of the present application. The diesel generator of the underwater power replenishment device is connected to the battery energy of the underwater vehicle to charge the battery energy.

[0150] The above embodiments are used to explain the present application rather than to limit the present application. Any modifications and changes made to the present application within the spirit of the present application and the protection scope of the claims shall fall within the protection scope of the present application.

Claims

1. An underwater power supplement device, applied to underwater navigation equipment, characterized in that: include: Sealed pressure chamber; A diesel generator, located in a sealed pressure cabin, for generating electricity to charge the power energy of the underwater navigation equipment; A foldable air intake unit connects the interior space of the sealed pressure cabin with the exterior space; a first air intake pipeline of the foldable air intake unit located in the sealed pressure cabin connects the air outlet pipe and the water collecting pipe, and an air outlet of the air outlet pipe connects with the interior space of the sealed pressure cabin; a first air intake solenoid valve is provided on the first air intake pipeline; A rigid water collection unit is provided in the sealed pressure cabin and is located at the bottom of the sealed pressure cabin; the rigid water collection unit includes a water collection box, and the water inlet of the air inlet pipe of the water collection box is connected to the water outlet of the water collection pipe; An exhaust unit, comprising: A first exhaust pipeline is provided in the sealed pressure cabin and is located above the water collecting tank; the first exhaust pipeline is connected to the exhaust port of the diesel generator and the water collecting tank; the air outlet of the first exhaust pipeline is located in the upper space of the water collecting tank; a second exhaust pipeline, communicating with the water collecting tank and the external space of the sealed pressure cabin, and provided with an exhaust solenoid valve; an air inlet of the second exhaust pipeline is located in the upper space of the water collecting tank; A control module is provided in the sealed pressure chamber, and the control module is connected to the diesel generator, the first intake solenoid valve, and the exhaust solenoid valve; the control module is configured to control the start and stop of the diesel generator, and control the opening and closing of the intake solenoid valve and the exhaust solenoid valve.

2. The underwater power supplement device according to claim 1, characterized in that: The sealed pressure cabin comprises: The cabin body is provided with openings at both ends; a mounting hole is provided on the upper portion of the cabin body for connecting the interior space of the cabin body with the exterior space, and the mounting hole is used to install the first air intake pipe; a mounting bracket is provided on the top of the outer surface of the cabin body, and the mounting bracket is used to install the second air intake pipe of the foldable air intake unit located outside the sealed pressure cabin; An assembly part is provided at the end opening of the cabin; The first sealing component is connected to the assembly part through a connecting piece to seal the cabin.

3. The underwater power supplement device according to claim 2, characterized in that: When there is at least one cabin body, and when there are two or more cabin bodies, adjacent cabin bodies are connected by the assembly parts and the connecting parts.

4. The underwater power supplement device according to claim 2, characterized in that: The folding air intake unit comprises: An air intake pipeline, the air intake pipeline comprising a first air intake pipeline and a second air intake pipeline, the first air intake pipeline and the second air intake pipeline being connected via a second sealing assembly; a second air intake solenoid valve connected to the control module is provided on the second air intake pipeline, and an air intake hole is provided on the second air intake pipeline above the second air intake solenoid valve; an air outlet pipe communicating with the first air inlet pipe and the interior space of the sealed pressure cabin; a water collecting pipe, communicating with the first air inlet pipeline and the air inlet of the water collecting tank; The rotary drive assembly is connected to the lower end of the second air intake pipeline and is used to drive the second air intake pipeline to stand up and fold.

5. The underwater power supplement device according to claim 2, characterized in that: The folding air intake unit also includes an infrared observation and antenna module for communicating with the underwater navigation equipment. The infrared observation and antenna module is installed on the top of the second air intake pipeline and is used to observe and alarm sea surface objects when the diesel generator is working.

6. The underwater power supplement device according to claim 1, characterized in that: A longitudinally placed movable baffle is provided in the water collecting tank, and the movable baffle divides the internal space of the water collecting tank into a first space and a second space. The water inlet of the air inlet pipe of the water collecting tank is located in the first space, and the air outlet of the first exhaust pipe and the air inlet of the second exhaust pipe are located in the second space.

7. The underwater power supplement device according to claim 6, characterized in that: The rigid water collection unit further comprises: a drainage pump installed on the upper surface of the water collecting tank, the water outlet of the drainage pump being connected to the external space of the sealed pressure cabin through a first main drainage pipeline, the first main drainage pipeline being provided with a main drainage valve; the drainage pump and the main drainage valve being both connected to the control module; An air intake and water suction pipe is connected to the drainage water pump and the first space; an air intake and water suction valve connected to the control module is provided on the pipe section of the air intake and water suction pipe located outside the water collecting tank, the water outlet of the air intake and water suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the air intake and water suction pipe is located at the bottom of the first space; An exhaust water suction pipe connects the drainage water pump and the second space; an exhaust water suction valve connected to the control module is provided on the pipe section of the exhaust water suction pipe located outside the water collecting tank, the water outlet of the exhaust water suction pipe is connected to the water inlet pipe of the drainage water pump, and the water inlet of the exhaust water suction pipe is located at the bottom of the second space.

8. The underwater power supplement device according to claim 6, characterized in that: The rigid water collection unit further includes a liquid level sensor provided in the water collection tank, and the liquid level sensor includes: a first intake liquid level sensor, disposed in the first space, connected to the control module, for detecting an upper limit liquid level of water in the first space and transmitting the upper limit liquid level to the control module; a second intake liquid level sensor, disposed in the first space, connected to the control module, for detecting a lower limit liquid level of water in the first space and transmitting the lower limit liquid level to the control module; a first exhaust liquid level sensor, disposed in the second space, connected to the control module, for detecting an upper limit liquid level of water in the second space and transmitting the upper limit liquid level to the control module; The second exhaust liquid level sensor is provided in the second space and is connected to the control module, and is used for detecting the lower limit liquid level of water in the second space and transmitting the lower limit liquid level to the control module.

9. The underwater power supplement device according to claim 1, characterized in that: The underwater power replenishment device also includes a flexible water collecting unit arranged in the sealed pressure cabin, and the flexible water collecting unit is located at the bottom of the sealed pressure cabin; the flexible water collecting unit includes a flexible container, and the water inlet pipe and the drainage pipe of the flexible container are both connected to the internal space of the water collecting tank, and the water inlet pipe is arranged above the drainage pipe; a one-way valve is provided on the water inlet pipe of the flexible container, and when the water in the water collecting tank flows to the flexible container, the one-way valve opens, and when the water in the flexible container flows to the water collecting tank, the one-way valve closes; a drainage valve is provided on the drainage pipe of the flexible container, and when water is drained through the drainage pipe, the drainage valve opens.

10. The underwater power supplement device according to claim 1, characterized in that: The underwater power supplement device also includes a heat dissipation unit, which includes a fixed heat dissipation module and a coil heat dissipation module. The fixed heat dissipation module and the coil heat dissipation module are connected to the external space of the sealed pressure cabin through a main water inlet pipeline and a second main drainage pipeline. The main water inlet pipeline is provided with a main water inlet solenoid valve connected to the control module, and the second main drainage pipeline is provided with a main drainage solenoid valve connected to the control module. The fixed heat dissipation module includes: A heat dissipation housing, wherein a cooling water pipe and a cooling circulating water pump connected to the control module are provided in the heat dissipation housing, and a water outlet of the cooling circulating water pump is connected to a water inlet of the cooling water pipe; A cooling water inlet pipeline, wherein the water inlet of the cooling water inlet pipeline is connected to the water outlet of the main water inlet pipeline, the water outlet of the cooling water inlet pipeline is connected to the water inlet of the cooling circulation water pump, and the cooling water inlet pipeline is provided with a water inlet solenoid valve connected to the control module; a cooling water outlet pipeline, wherein the water inlet of the cooling water outlet pipeline is connected to the water outlet of the cooling water pipeline, the water outlet of the cooling water outlet pipeline is connected to the water inlet of the second main drainage pipeline, and the cooling water outlet pipeline is provided with a drainage solenoid valve connected to the control module; At least one fan assembly connected to the control module, the fan assembly being in communication with the interior of the heat dissipation housing; the fan assembly comprising an intake fan disposed on one side of the heat dissipation housing and an exhaust fan disposed on the other side of the heat dissipation housing; The coil heat dissipation module includes a coil wound around the inner wall of the sealed pressure chamber, the water inlet of the coil is connected to the water outlet of the main water inlet pipeline, and the water outlet of the coil is connected to the water inlet of the second main drainage pipeline.

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