Underwater vehicle

Abstract

The invention relates to the technical field of underwater vehicles, and provides an underwater vehicle, which comprises a hull structure, the power utilization assembly is arranged in the ship body structure; the plurality of battery packs are arranged in the ship body structure, are connected with the power utilization components and are used for supplying power to the power utilization components; the power supply management and control device is arranged on the surface of the ship body structure, the power supply management and control device is connected with the plurality of battery packs, the power supply management and control device is connected with the power utilization assembly, and the power supply management and control device is used for independently controlling the charging and discharging process of each battery pack in the plurality of battery packs; and the switch device is detachably mounted on the surface of the ship body structure, and the switch device is connected with the battery pack and the power supply management and control device. According to the underwater vehicle provided by the invention, the safety of multi-battery pack charging and discharging and daily battery storage when the electrodynamic underwater vehicle is assembled is improved, and the problem of power consumption of an electric loop in a battery connection state during daily storage is also avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater vehicles, and in particular relates to an underwater vehicle. Background Art

[0002] In the related art, the electrical components of underwater vehicles with high-precision measurement requirements are often powered directly by independent and interference-free secondary lithium batteries. Due to space limitations, after assembling multiple secondary lithium battery packs and various electrical components, electric-powered underwater vehicles are often complicated to disassemble and take a long time. In order to facilitate user use, electric-powered underwater vehicles have higher requirements for the charging and discharging safety of secondary lithium batteries.

[0003] Therefore, how to overcome the above-mentioned technical defects has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The embodiment of the present invention provides an underwater vehicle, which solves the problem of safe use and storage of charging and discharging of an internal secondary battery pack of the underwater vehicle.

[0005] An underwater vehicle comprises: a hull structure; an electrical component disposed in the hull structure; a plurality of battery packs disposed in the hull structure and connected to the electrical component for supplying power to the electrical component; a power management and control device disposed on the surface of the hull structure, the power management and control device being connected to the plurality of battery packs, and the power management and control device being connected to the electrical component, the power management and control device being used to independently control the charging and discharging process of each of the plurality of battery packs; and a switch device detachably mounted on the surface of the hull structure, the switch device connecting the battery pack and the power management and control device.

[0006] In addition, the underwater vehicle in the above technical solution provided by this application may also have the following additional technical features:

[0007] In some technical schemes, optionally, the power supply management and control device includes: a power circuit, one end of which is connected to the switching device, and the other end of which is connected to the power component; a switch component, which is arranged in the power circuit; and a controller, which is connected to the switch component and is used to control the switch component.

[0008] In some technical solutions, optionally, the power circuit includes: a pre-charging circuit, the input end of the pre-charging circuit is connected to the switching device; an isolation circuit, one end of the isolation circuit is connected to the output end of the pre-charging circuit, and the other end of the isolation circuit is connected to the power component.

[0009] In some technical solutions, optionally, the switch component includes: a first switch circuit, wherein two ends of the first switch circuit are respectively connected to the input end of the pre-charging circuit and the isolation circuit; and a second switch circuit, wherein two ends of the second switch circuit are respectively connected to the isolation circuit and the power-consuming component.

[0010] In some technical solutions, optionally, the power supply management and control device also includes: a detection device, which is arranged in the power circuit and connected to the controller, and the detection device is used to detect the voltage and current in the power circuit.

[0011] In some technical schemes, optionally, the switching device also includes: a first switching device, connected to the positive pole of multiple battery packs and the power control device; a second switching device, short-circuited to the first switching device, when the second switching device is separated from the first switching device, the connection between the battery pack and the power control device is disconnected.

[0012] In some technical solutions, optionally, when the switch device is closed, the positive electrodes of the multiple battery packs are connected to the positive electrode of the battery input of the power supply control device through the connection terminal of the second switch device.

[0013] In some technical solutions, optionally, the switch device is filled with inert gas.

[0014] In some technical solutions, optionally, the underwater vehicle further includes: a plurality of spacer terminals, the plurality of spacer terminals being arranged between the input end and the output end of the battery cells or battery units inside each battery pack, and being arranged between the positive electrodes of the plurality of battery packs.

[0015] In some technical solutions, optionally, the switching device includes a wiring terminal, and the underwater vehicle also includes: a charging terminal; the positive electrode of each of the multiple battery packs is connected to a different wiring terminal; the negative electrode of each of the multiple battery packs is connected to a different charging terminal.

[0016] In some technical solutions, optionally, the electrical component includes: a plurality of sensors, the sensors including a water pressure sensor, a water temperature sensor, an acoustic sensor and a magnetic field sensor.

[0017] The beneficial effects brought by the present invention are as follows:

[0018] It can be seen from the above scheme that an embodiment of the present invention provides an underwater vehicle, which effectively improves the safety of charging and discharging of multiple battery packs and daily battery storage of the electric-powered underwater vehicle during assembly by introducing a power control device and a switch device, and connecting the power control device and the switch device between the battery pack and the power-consuming components, and also avoids the power consumption problem of the power circuit when the battery is connected during daily storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram showing a charging and discharging scheme of a battery pack of an underwater vehicle according to an embodiment of the present invention.

[0020] Figure 2A schematic diagram showing electrical flow of an underwater vehicle according to an embodiment of the present invention.

[0021] Figure 3 A schematic diagram showing the electrical flow of an underwater vehicle according to an embodiment of the present invention.

[0022] In the figure, 100 is an underwater vehicle, 110 is a hull structure, 120 is an electrical component, 122 is a sensor, 130 is a battery pack, 150 is a power management device, 152 is a power circuit, 154 is a switch component, 156 is a controller, 158 is a pre-charging circuit, 160 is an isolation circuit, 162 is a first switch circuit, 164 is a second switch circuit, 166 is a detection device, 170 is a switch device, 172 is a terminal, 174 is a first switch device, 176 is a second switch device, 180 is a spacer terminal, and 190 is a charging terminal. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the underwater vehicle 100 provided in the present application includes: a hull structure 110; an electrical component 120, which is arranged in the hull structure 110; a plurality of battery packs 130, which are arranged in the hull structure 110 and connected to the electrical component 120, and are used to supply power to the electrical component 120; a power management device 150, which is arranged on the surface of the hull structure 110, the power management device 150 is connected to the plurality of battery packs 130, and the power management device 150 is connected to the electrical component 120, and the power management device 150 is used to independently control the charging and discharging process of each battery pack 130 in the plurality of battery packs 130; a switch device 170, which is detachably mounted on the surface of the hull structure 110, and the switch device 170 connects the battery pack 130 and the power management device 150.

[0025] The underwater vehicle 100 provided in the present application may be an electrically powered underwater vehicle 100, the battery pack 130 is a secondary lithium battery pack, and the switch device 170 is a physical switch. The underwater vehicle 100 includes: a hull structure 110, an electrical component 120, a plurality of battery packs 130, a power management device 150, and a switching device. Specifically, the electrical component 120 is disposed in the hull structure 110, and the electrical component 120 may be a high-precision sensor for meeting the high-precision measurement requirements of the underwater vehicle 100. A plurality of battery packs 130 are disposed in the hull structure 110, connected to the electrical component 120, and can supply power to the electrical component 120. The battery pack 130 may be an independent secondary lithium battery pack without interference sources.

[0026] The power management and control device 150 is arranged on the surface of the hull structure 110, and is specifically installed on the end face of the easily disassembled part of the hull structure 110. The power management and control device 150 is located between the battery pack 130 and the power component 120, and the power management and control device 150 is connected to multiple battery packs 130 and power components 120 respectively. By arranging the power management and control device 150 between multiple battery packs 130 and power components 120, each of the multiple battery packs 130 can be independently controlled to achieve refined management of electric energy. The charging and discharging state of each battery pack 130 is dynamically adjusted according to the actual needs of different power components 120, so as to optimize energy distribution and avoid energy waste.

[0027] Independently controlling the charging and discharging process of each battery pack 130 helps to promptly detect and isolate a single battery pack 130 that may have a fault, preventing the fault from spreading and affecting the entire power system, thereby enhancing the stability and safety of the system, reducing the risk of single-point failures, and improving the reliability of the underwater vehicle 100 during operation.

[0028] The switch device 170 is a physical switch, located between the battery pack 130 and the power management device 150, and the switch device 170 is connected to the battery pack 130 and the power management device 150 respectively. The switch device 170 is detachably mounted on the surface of the hull structure 110, in a convenient position for disassembly. The detachable design makes it easier to maintain, inspect or replace the battery pack 130 and the power management device 150, and the power system can be quickly connected or disconnected without complicated operations, which simplifies the maintenance process and shortens the maintenance time.

[0029] The underwater vehicle 100 provided in the present application effectively improves the safety of charging and discharging of multiple battery packs 130 and daily battery storage of the electric-powered underwater vehicle 100 during assembly by introducing a power management device 150 and connecting the power management device 150 and a switch device 170 between the battery pack 130 and the power-consuming component 120, and also avoids the power consumption problem of the power circuit 152 when the battery is connected during daily storage.

[0030] In some embodiments, optionally, Figure 1 As shown, the power supply control device 150 includes: a power circuit 152, one end of the power circuit 152 is connected to the switch device 170, and the other end of the power circuit 152 is connected to the power component 120; a switch component 154, which is arranged in the power circuit 152; and a controller 156, which is connected to the switch component 154 and is used to control the switch component 154.

[0031] In this embodiment, the power management and control device 150 includes a power circuit 152, a switch component 154 and a controller 156. The two ends of the power circuit 152 are respectively connected to the switch device 170 and the power component 120. Since the power component 120 includes a variety of high-precision sensors, each high-precision sensor is correspondingly connected to a different power circuit 152. A switch component 154 is also provided in the power circuit 152, and the switch component 154 is connected to the controller 156 and directly controlled by the controller 156. By directly controlling the switch component 154 by the controller 156, remote operation and automatic management of the power circuit 152 can be realized. The operator can open or close the power circuit 152 through a control signal without directly contacting the power management and control device 150, thereby improving the convenience and safety of operation.

[0032] The controller 156 can dynamically control the switch state of the switch component 154 according to the actual needs of the power-consuming component 120, thereby realizing flexible adjustment of energy distribution. This design enables the power supply management and control device 150 to quickly respond to and adjust energy supply according to changes in task requirements or environmental conditions, thereby improving energy utilization efficiency and system adaptability.

[0033] The controller 156 can accurately control the state of the switch assembly 154, so it is easier to locate the problem during system maintenance and troubleshooting. By checking the control signal of the controller 156 and the response of the switch assembly 154, it is possible to quickly determine whether the power circuit 152 is working properly, thereby simplifying the maintenance and troubleshooting process.

[0034] In some embodiments, optionally, Figure 1 As shown, the power circuit 152 includes: a pre-charging circuit 158, the input end of the pre-charging circuit 158 ​​is connected to the switching device 170; an isolation circuit 160, one end of the isolation circuit 160 is connected to the output end of the pre-charging circuit 158, and the other end of the isolation circuit 160 is connected to the power component 120.

[0035] In this embodiment, the power circuit 152 includes a pre-charging circuit 158 ​​and an isolation circuit 160. The input end of the pre-charging circuit 158 ​​is connected to the switch device 170, one end of the isolation circuit 160 is connected to the output end of the pre-charging circuit 158, and the other end of the isolation circuit 160 is connected to the power component 120.

[0036] The provision of the pre-charge circuit 158 ​​allows the power component 120 to be slowly and safely charged before the main power supply is officially connected. This can effectively prevent the impact damage to the power component 120 caused by directly connecting to high voltage or high current, which is particularly important for those high-precision sensors.

[0037] The setting of the isolation circuit 160 establishes a safety barrier between the pre-charging circuit 158 ​​and the power-consuming component 120. The isolation circuit 160 can effectively isolate unstable factors such as voltage fluctuations and current surges that may exist in the pre-charging circuit 158, ensuring that these unstable factors will not be transmitted to the power-consuming component 120, thereby improving the safety of the entire power system.

[0038] The combination of the pre-charging circuit 158 ​​and the isolation circuit 160 enables the power supply control device 150 to operate more stably and reliably when facing abnormal conditions such as power grid fluctuations and transient overvoltages. The pre-charging circuit 158 ​​can smooth out these fluctuations, while the isolation circuit 160 can further isolate these unstable factors to ensure the stable operation of the power-consuming component 120.

[0039] In some embodiments, optionally, Figure 1 As shown, the switch component 154 includes: a first switch circuit 162, the two ends of which are respectively connected to the input end of the pre-charging circuit 158 ​​and the isolation circuit 160; and a second switch circuit 164, the two ends of which are respectively connected to the isolation circuit 160 and the power component 120.

[0040] In this embodiment, the switch component 154 includes: a first switch circuit 162 and a second switch circuit 164. The first switch circuit 162 is located between the input end of the pre-charging circuit 158 ​​and the isolation circuit 160, and is responsible for controlling the on and off of the pre-charging circuit 158. During the pre-charging process, the first switch circuit 162 can be slowly closed to ensure that the power component 120 is gradually charged to avoid instantaneous large current shocks. The second switch circuit 164 is located between the isolation circuit 160 and the power component 120, and serves as a control switch for the main power supply path. After confirming that the pre-charging is completed and the system is stable, the second switch circuit 164 will be closed to safely transfer the electrical energy to the power component 120.

[0041] The safety of the power supply connection process is improved by the design of segmented control. The segmented switch component 154 enables the power supply management device 150 to more easily adapt to the access of different types and specifications of power consumption components 120. By adjusting the control logic and parameter settings of the first switch circuit 162 and the second switch circuit 164, the compatibility and stability between the power supply management device 150 and various power consumption components 120 can be ensured.

[0042] In some embodiments, optionally, Figure 1 As shown, the power supply control device 150 further includes: a detection device 166 , which is disposed in the power circuit 152 and connected to the controller 156 , and the detection device 166 is used to detect the voltage and current in the power circuit 152 .

[0043] In this embodiment, the power supply control device 150 further includes a detection device 166, which is disposed in the power circuit 152 and connected to the controller 156, and is used to detect the voltage and current in the power circuit 152. The detection device 166 includes a multimeter, an oscilloscope, a loop current detector, a voltmeter, an ammeter, and the like.

[0044] The detection device 166 can monitor the voltage and current conditions in the power circuit 152 in real time. Once an abnormality is found (such as overvoltage, undervoltage, overcurrent, short circuit, etc.), an alarm signal can be sent to the controller 156. The controller 156 responds by disconnecting the corresponding switch circuit, thereby effectively preventing equipment damage or safety accidents such as fire.

[0045] By using the voltage and current data provided by the detection device 166, the controller 156 can more accurately grasp the real-time power consumption and power status of the power-consuming component 120, and then dynamically adjust the energy allocation strategy according to task requirements or environmental conditions, ensuring that the power-consuming component 120 receives a stable and efficient power supply while avoiding energy waste.

[0046] The combined use of the detection device 166 and the controller 156 enables the power supply management and control device 150 to have the capability of intelligent monitoring and control, thereby improving the automation level of the underwater vehicle 100.

[0047] In some embodiments, optionally, Figure 1 As shown, the switching device 170 also includes: a first switching device 174, which is connected to the positive poles of the multiple battery packs 130 and the power management device 150; a second switching device 176, which is short-circuited to the first switching device 174, and when the second switching device 176 is separated from the first switching device 174, the connection between the battery pack 130 and the power management device 150 is disconnected.

[0048] In this embodiment, the switch device 170 further includes a first switch device 174 and a second switch device 176. The positive electrodes of the plurality of battery packs 130 and the power management device 150 are connected to the first switch device 174. The second switch device 176 is short-circuited with the first switch device 174. The second switch device 176 is detachable from the first switch device 174. When the second switch device 176 is separated from the first switch device 174, the connection between the battery pack 130 and the power management device 150 is disconnected.

[0049] By using the first switch device 174 and the second switch device 176 in conjunction, safe and reliable control of the connection between the battery pack 130 and the power management device 150 can be achieved. When disconnection is required, the second switch device 176 can be separated from the first switch device 174 to quickly cut off the power output of the battery pack 130, thereby ensuring the safety of the system.

[0050] The short-circuit connection design of the second switch device 176 and the first switch device 174 allows the system to maintain a normal power-on state when there is no need to disconnect the connection between the battery pack 130 and the power management device 150. When disconnection is required, it can be achieved through simple operations, which improves the flexibility and operability of the system. Especially in emergency situations, such as when the system fails or the power output needs to be stopped immediately, the emergency power-off function can be achieved by quickly separating the second switch device 176 from the first switch device 174, effectively preventing the expansion of the fault or the occurrence of a safety accident.

[0051] In some embodiments, optionally, Figure 1 As shown, when the switch device 170 is closed, the positive electrodes of the multiple battery packs 130 are connected to the battery input positive electrode of the power supply management and control device 150 through the connection terminal 172 of the second switch device 176.

[0052] In this embodiment, when the switch device 170 is closed, the positive electrodes of the multiple battery packs 130 are connected to the battery input positive electrode of the power management device 150 through the connection terminal 172 of the second switch device 176.

[0053] When the switch device 170 is closed, the connection terminal 172 of the second switch device 176 ensures that the positive electrodes of the plurality of battery packs 130 can be smoothly and unimpededly connected to the battery input positive electrode of the power management device 150. This ensures that the battery pack 130 can provide stable and reliable power to the power management device 150 to meet the power demand of the system.

[0054] In some embodiments, the switch device 170 is optionally filled with an inert gas.

[0055] In this embodiment, the switch device 170 is filled with an inert gas. The switch device 170 is an airtight component and is filled with a safe inert gas. Inert gases (such as argon, nitrogen, etc.) have stable chemical properties and are not flammable or explosive. Filling the switch device 170 with an inert gas can effectively isolate the electrical components inside the switch device 170 from oxygen, moisture, etc. in the water, thereby preventing the internal electrical components from getting damp and the insulation performance from decreasing.

[0056] When the switch device 170 breaks the circuit (the second switch device 176 is short-circuited or disconnected from the first switch device 174), an arc may be generated. The presence of the inert gas can quickly absorb and cool the arc, thereby shortening the duration of the arc and reducing the damage of the arc to the switch device 170 and the surrounding environment. This helps to improve the arc extinguishing ability of the switch device 170 and protect it from the erosion of the arc.

[0057] In some embodiments, optionally, Figure 1 As shown, the underwater vehicle 100 further includes: a plurality of spacing terminals 180 , which are disposed between the input end and the output end of the battery cells or battery units inside each battery pack 130 , and are disposed between the positive electrodes of the plurality of battery packs 130 .

[0058] In this embodiment, the underwater vehicle 100 further includes a plurality of spacing terminals 180, which serve as electrical isolation points between the battery packs 130, and can effectively prevent short circuits and current cross-talk between the battery packs 130. This improves the safety of the entire battery system and reduces the risk of fire or explosion caused by electrical failure.

[0059] The existence of the spacing terminals 180 makes the connection between the battery packs 130 more flexible. By adjusting the position and number of the spacing terminals 180, it is convenient to realize the series connection, parallel connection or mixed connection between different battery packs 130, so as to meet the power supply requirements of the underwater vehicle 100 under different mission requirements.

[0060] When a battery pack 130 needs to be maintained or replaced, the battery pack 130 can be conveniently isolated from the entire battery system by disconnecting the corresponding spacing terminal 180 without affecting the normal operation of other battery packs 130. This greatly improves the convenience of maintenance and replacement of the battery pack 130.

[0061] When a battery system fails, the fault point can be located more quickly by checking the connection status and electrical parameters of the interval terminal 180, and effective fault diagnosis and elimination can be performed, which helps to shorten the maintenance time and improve the availability of the underwater vehicle 100.

[0062] In some embodiments, optionally, Figure 1As shown, the switch device 170 includes a wiring terminal 172, and the underwater vehicle 100 also includes: a charging terminal 190; the positive pole of each battery pack 130 in the multiple battery packs 130 is connected to a different wiring terminal 172; the negative pole of each battery pack 130 in the multiple battery packs 130 is connected to a different charging terminal 190.

[0063] In this embodiment, the switch device 170 includes a plurality of terminals 172, and the plurality of terminals 172 are arranged side by side. The positive pole of each battery pack 130 in the plurality of battery packs 130 is connected to a different terminal 172; the negative pole of each battery pack 130 in the plurality of battery packs 130 is connected to a different charging terminal 190. The positive pole of each battery pack 130 is independently connected to a different terminal 172, so that the power management and control device 150 can monitor and control the charge and discharge state of each battery pack 130 individually, which helps to optimize battery use and extend battery life, while ensuring balanced operation between the battery packs 130 to avoid overcharging or over-discharging of some batteries. By connecting each battery pack 130 through an independent terminal 172, it is easier to detect abnormal conditions of the battery pack 130, such as overheating, short circuit or voltage abnormality. Once a problem is found, the power management and control device 150 can quickly cut off the connection with the battery pack 130 to prevent the spread of the fault and protect the safety of the entire power system.

[0064] The present application independently connects the positive pole of each battery pack 130 through multiple wiring terminals 172, and the power supply control device 150 realizes refined, safe, flexible and easy-to-maintain management of the battery pack 130, providing more reliable and efficient energy support for the underwater vehicle 100.

[0065] In some embodiments, optionally, Figure 1 As shown, the electrical component 120 includes: a plurality of sensors 122, which are high-precision sensors, including water pressure sensors, water temperature sensors, acoustic sensors, attitude sensors, and magnetic field sensors. They are used to meet the high-precision measurement requirements of the underwater vehicle 100, and the high-precision sensors also include: high-precision displacement sensors, Doppler velocimeters, depth gauges, and altimeters, etc. These high-precision sensors can greatly improve the underwater operation efficiency and accuracy of the underwater vehicle 100.

[0066] In the related art, while the electric powered underwater vehicle 100 uses a high-power battery-driven motor as power, it generally also requires other low-power electrical components 120, such as some common high-precision sensor devices.

[0067] Since high-voltage, high-power secondary batteries will generate large fluctuations and strong interference electrical signals when driving the motor of an underwater vehicle, the electrical components 120 of an underwater vehicle 100 with high-precision measurement requirements often choose to use independent and interference-free secondary lithium batteries for direct power supply. However, due to space limitations, the electric-powered underwater vehicle 100 is often complicated to disassemble and time-consuming after assembling multiple secondary lithium battery packs and various electrical components 120. In order to facilitate the use of users, the solution of disassembling the secondary lithium battery packs one by one and then charging them is generally not used, but the multiple groups of secondary lithium batteries in the vehicle will be charged in the assembled state. Therefore, the electric-powered underwater vehicle 100 has higher requirements for the charging and discharging safety of secondary lithium batteries in the assembled state.

[0068] Based on considerations such as safety of use, daily storage and maintenance costs, this solution proposes a safe use and storage solution for the secondary battery pack inside the underwater vehicle 100 based on the battery use, charging and daily storage of the electric-powered underwater vehicle 100 in the assembled state.

[0069] The present solution proposes a safe use and storage solution for the secondary battery pack inside the underwater vehicle 100. By introducing a power control device 150, reasonably arranging the positions of the power control device 150 and the charging interface, and setting switches for power circuits 152 at various levels, the safety of charging and discharging of multiple battery packs 130 and daily battery storage in the electric-powered underwater vehicle 100 is effectively improved, and the power consumption problem of the power circuit 152 when the battery is connected during daily storage is avoided.

[0070] In order to solve the above problems, the present solution isolates the battery pack 130 from each power-consuming component 120 by setting a power management device 150 as an intermediate piece. The power management device 150 is arranged at the end face of the easily disassembled part, and the positive and negative electrodes of the secondary lithium battery pack are introduced into the power management device 150, and an independent charging socket is arranged for each battery pack 130 at the end face of the power management device 150, so that the underwater vehicle 100 can be conveniently charged on land.

[0071] An electrical switch is provided between the electrical connection of each secondary lithium battery pack and the power management device 150, and an electrical switch is provided between the power management device 150 and the power-consuming component 120 in the vehicle powered by the lithium battery pack 130. Such a configuration facilitates the underwater vehicle 100 to control the power consumption of each component inside the vehicle, and improves the use efficiency of the battery pack 130 and the electrical safety of the vehicle.

[0072] At the same time, in order to avoid abnormal circuit conditions and safety considerations during daily storage, a physical switch (switch device 170) from the battery pack 130 to the power management device 150 is set to provide a way to manually cut off the electrical circuit.

[0073] In a specific embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the present application introduces a power control device 150 and a switch device 170 (physical switch) in an electric underwater vehicle 100 having multiple groups of secondary lithium battery packs. At the same time, the power control device 150 is used as an intermediate to connect the battery pack 130 and various high-precision sensor devices, completing a closed-loop circuit connection principle relationship of the underwater vehicle 100, including the positive electrode of the output end of each secondary battery pack, the physical switch, the power control device 150, each power-consuming component 120, the power control device 150, the physical switch, and the negative electrode of each secondary battery pack.

[0074] like Figure 2 As shown, it can represent the installation position of the physical switch and the power management device 150 on the underwater vehicle 100. The power management device 150 is installed at the end surface of the underwater vehicle 100 where it is easy to disassemble, and the physical switch is located on the surface of the underwater vehicle 100 and is installed in a watertight manner.

[0075] The positive and negative electrodes of each secondary battery pack of the underwater vehicle 100 are simultaneously connected to the power control device 150. At the same time, the power control device 150 is placed on the end surface of the vehicle for easy disassembly, solving the charging problem of each secondary lithium battery pack in the assembled state.

[0076] For the sake of power safety, this solution sets an electrically controllable switch and output isolation circuit 160 between each secondary lithium battery pack and the power control device 150 and between the power control device 150 and each high-precision sensor device. This can greatly avoid power supply interference between components. At the same time, the switch control can realize the power-on of each component on demand, improve the utilization efficiency of the battery pack 130, and avoid the power consumption of the device when it does not need to work.

[0077] The power supply control device 150 can also be provided with a voltage and current monitoring function, which can detect overvoltage, undervoltage, and overcurrent in the power circuit 152 at any time, and control the switch to disconnect in time to protect the battery and electrical devices.

[0078] This solution also provides a manually operable physical connection switch (switch device 170 ) between each secondary lithium battery pack and the power supply control device 150 .

[0079] The switch device 170 is an airtight part filled with safe inert gas. There should be a spacer terminal 180 between the input and output ends of the battery cells or battery units inside each battery pack 130, and between the positive poles of each battery pack 130 (to avoid the problem of tip discharge between the connecting terminals). The closing and opening of the switch device 170 is achieved by applying a pulling force from the outside: when closed, the positive pole of each battery pack 130 can be connected to the battery input positive pole of the lower power supply management device 150 through the terminal device of the upper part of the switch (the second switch device 176); when disconnected, the power supply circuit between the battery and all internal components of the aircraft is directly disconnected.

[0080] The physical switch is divided into two parts, the upper and lower parts (corresponding to the second switch device 176 and the first switch device 174 respectively), and the on-off relationship of the electrical connection from the positive pole of the output terminal of each secondary lithium battery group to the power supply control device 150 is controlled by the physical switch. For each group of secondary lithium battery power supply circuit, the lower half of the physical switch has two groups of connection terminals respectively connected to the positive pole of the battery output terminal and the front end of the battery pre-charging circuit of the power supply control device 150. The upper half realizes an internal short-circuit connection at the docking end of the above two groups of connection terminals. When the upper half is separated from the lower half, the docking terminals are separated and the short-circuit relationship is disconnected; when the upper half is connected to the lower half, the docking terminals are reliably connected, and through the terminal connection relationship of the upper half structure, the electrical path from the positive pole of the battery pack 130 to the front end of the pre-charging circuit of the power supply control device 150 is turned on.

[0081] The physical switch is used for normal power consumption of the underwater vehicle 100 during navigation, and is also used as an emergency avoidance measure for abnormal situations when charging the secondary lithium battery packs of the underwater vehicle 100. It also ensures that when the underwater vehicle 100 is stored on land with the physical switch disconnected, no discharge loop is formed between the battery and the power-consuming components of the vehicle or the ground wire of the vehicle, which greatly prolongs the storage time of the vehicle and improves the safety of the vehicle when stored on the road.

[0082] The above-mentioned electrical flow relationship design, power supply control device 150, and physical switch setting provide a solution for the safe use, maintenance, and storage of multiple battery packs 130 of the underwater vehicle 100.

[0083] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An underwater vehicle (100), characterized in that: include: Hull structure (110); An electrical component (120) is disposed in the hull structure (110); A plurality of battery packs (130) are arranged in the hull structure (110) and connected to the power-consuming component (120) to supply power to the power-consuming component (120); A power control device (150) is arranged on the surface of the hull structure (110), the power control device (150) is connected to the plurality of battery packs (130), and the power control device (150) is connected to the power-consuming component (120), and the power control device (150) is used to independently control the charging and discharging process of each of the plurality of battery packs (130); A switch device (170) is detachably mounted on the surface of the hull structure (110), and the switch device (170) is connected to the battery pack (130) and the power supply control device (150).

2. The underwater vehicle (100) according to claim 1, characterized in that: The power supply control device (150) comprises: An electric circuit (152), one end of the electric circuit (152) being connected to the switch device (170), and the other end of the electric circuit (152) being connected to the electric component (120); A switch assembly (154) is arranged in the power circuit (152); A controller (156) is connected to the switch component (154) and is used to control the switch component (154).

3. The underwater vehicle (100) according to claim 2, characterized in that: The power circuit (152) comprises: A pre-charging circuit (158), wherein an input end of the pre-charging circuit (158) is connected to the switching device (170); An isolation circuit (160), one end of the isolation circuit (160) is connected to the output end of the pre-charging circuit (158), and the other end of the isolation circuit (160) is connected to the power-consuming component (120).

4. The underwater vehicle (100) according to claim 3, characterized in that: The switch assembly (154) comprises: A first switch circuit (162), wherein two ends of the first switch circuit (162) are respectively connected to an input end of the pre-charging circuit (158) and the isolation circuit (160); A second switch circuit (164), wherein two ends of the second switch circuit (164) are respectively connected to the isolation circuit (160) and the power-consuming component (120).

5. The underwater vehicle (100) according to claim 2, characterized in that: The power supply control device (150) further comprises: A detection device (166) is disposed in the power circuit (152) and connected to the controller (156). The detection device (166) is used to detect the voltage and current in the power circuit (152).

6. The underwater vehicle (100) according to any one of claims 1 to 5, characterized in that: The switch device (170) comprises: A first switch device (174) connected to the positive electrodes of the plurality of battery packs (130) and the power supply control device (150); a second switch device (176) short-circuited to the first switch device (174), Wherein, when the second switch device (176) is separated from the first switch device (174), the connection between the battery pack (130) and the power supply control device (150) is disconnected; When the switch device (170) is closed, the positive electrodes of the plurality of battery packs (130) are connected to the battery input positive electrode of the power supply control device (150) via the connection terminal (172) of the second switch device (176).

7. The underwater vehicle (100) according to claim 6, characterized in that: The switch device (170) is filled with inert gas.

8. The underwater vehicle (100) according to any one of claims 1 to 5, characterized in that: Also includes: A plurality of spacing terminals (180) are arranged between the input end and the output end of the battery cells or battery units inside each of the battery packs (130), and are arranged between the positive electrodes of the plurality of battery packs (130).

9. The underwater vehicle (100) according to any one of claims 1 to 5, characterized in that: The switch device (170) comprises a connection terminal (172), and the underwater vehicle (100) further comprises: Charging terminal (190); The positive electrode of each of the battery packs (130) in the plurality of battery packs (130) is connected to a different connection terminal (172); The negative electrode of each of the battery packs (130) in the plurality of battery packs (130) is connected to a different charging terminal (190).

10. The underwater vehicle (100) according to any one of claims 1 to 5, characterized in that: The power-consuming component (120) comprises: a plurality of sensors (122), wherein the sensors include a water pressure sensor, a water temperature sensor, an acoustic sensor, a posture sensor and a magnetic field sensor.

Images