Underwater equipment multi-working-condition reconfiguration battery pack based on wireless energy communication technology and reconfiguration method

Abstract

The invention provides an underwater equipment multi-working-condition reconfiguration battery pack and reconfiguration method based on a wireless energy and information technology, the battery pack comprises multiple layers of battery modules, each layer of battery module comprises a plurality of single batteries, two ends of each single battery are respectively provided with a secondary wireless energy and information simultaneous transmission device, and the secondary wireless energy and information simultaneous transmission devices are connected with the battery modules. A database of voltage, current and the number of single batteries required in different navigation stages is preset in the underwater equipment control system. In the service process of the underwater equipment, the underwater equipment control system can control the reconfiguration of the reconfiguration battery pack, so that the output power of the reconfiguration battery pack meets the navigation power requirement of the underwater equipment, self-adaptive adjustment of the output power of the battery pack of the underwater equipment is achieved, and meanwhile energy waste caused by too large output power is avoided. According to the reconfiguration battery pack, energy supply is conducted based on the wireless energy communication technology, the heat effect problem caused by a traditional power adjusting mode is avoided, the energy utilization rate of the underwater equipment multi-working-condition reconfiguration battery pack is increased, and the cruising ability and concealment of underwater operation of the underwater equipment are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of underwater charging, and in particular relates to a multi-operating-condition reconfiguration battery pack and a power regulation method for underwater equipment based on wireless energy communication technology. Background Art

[0002] During the service period of underwater equipment, there are often at least two stages: low-power low-speed cruising and high-power high-speed navigation. Different navigation stages have different voltage and current requirements. As the diving depth of underwater equipment changes, the requirements for the power system also vary greatly. Generally, when switching from low speed to high speed, the voltage and current required by underwater equipment increase by multiples. The battery pack used in traditional underwater equipment is fixed, consisting of multiple battery blocks connected by a fixed series-parallel physical topology, and the output voltage and output current of the battery pack can only be adjusted through circuit components such as rectifiers and voltage regulators to adapt to the power requirements of underwater equipment in different navigation stages. However, on the one hand, this adjustment method is subject to the complexity of hardware and control systems, and the power adjustment of multiple working conditions is limited. Generally, the program in the hardware can only be designed in advance according to the requirements of two or three working conditions, and corresponding adjustments can be made when work is needed; on the other hand, during the power adjustment process, the battery pack will produce a more serious heating effect, resulting in a decrease in the energy efficiency of the battery pack. In addition, when the battery pack fails or runs out of energy, the underwater equipment needs to surface and personnel need to be salvaged. The battery pack must be replaced and the underwater equipment must be re-deployed and submerged. The energy replenishment process is repetitive, time-consuming and costly, and the operation is difficult to conceal. Summary of the invention

[0003] The purpose of the present invention is to solve the problems that the power regulation of existing underwater equipment battery packs is limited and the thermal effect generated leads to low energy utilization of the battery packs, as well as the cumbersome battery pack replacement process and poor operation concealment, and provide a multi-working condition reconstruction battery pack and power regulation method for underwater equipment based on wireless energy communication technology.

[0004] To achieve the above purpose, the technical solution provided by the present invention is:

[0005] A multi-operating-condition reconfigurable battery pack for underwater equipment based on wireless energy communication technology, wherein the reconfigurable battery pack includes multiple layers of battery modules, each layer of battery modules includes multiple battery cells, and a single battery cell is composed of several battery blocks connected in series;

[0006] A secondary MCU is provided in each of the battery cells, and a secondary wireless energy transmission device is provided at both the input and output ends of the battery cells; the secondary wireless energy transmission device is connected to the primary wireless energy transmission device of the underwater charging base station to realize energy replenishment of the reconstructed battery pack;

[0007] The underwater equipment control system is pre-installed with a database of voltage, current, power and number of battery cells required for underwater equipment to perform different tasks;

[0008] The underwater equipment control system can send a battery pack reconstruction instruction to the secondary MCU of the battery cell according to the voltage, current, power requirements of the underwater equipment to be performed and the current battery pack output parameter size;

[0009] The secondary MCU is used to control the secondary wireless energy communication simultaneous transmission device of the battery cell to be turned on or off according to the battery pack reconstruction instruction sent by the underwater equipment control system to realize battery pack reconstruction; and is used to obtain the charge state of the battery cell in real time when the reconstructed battery pack is replenished with energy and feed it back to the primary wireless energy communication simultaneous transmission device.

[0010] Furthermore, the number of layers of the battery modules and the number of battery cells in each layer of the battery modules are calculated based on the maximum voltage and maximum current required during the service of the underwater equipment.

[0011] Furthermore, the primary wireless energy signal transmission device includes a primary MCU, a primary isolation transformer, a primary modulation and demodulation module, a DC power supply, an inverter, a primary compensation circuit and a transmitting coil; the primary MCU, the primary isolation transformer and the primary modulation and demodulation module are connected in sequence, and the DC power supply, the inverter, the primary compensation circuit and the transmitting coil are connected in sequence; the primary modulation and demodulation module interacts with the primary compensation circuit to inject the data signal output by the primary MCU into the primary compensation circuit;

[0012] The secondary wireless energy signal transmission device includes a secondary isolation transformer, a secondary modulation and demodulation module, a receiving coil, a secondary compensation circuit and a rectifier; the secondary isolation transformer and the secondary modulation and demodulation module are connected to the secondary MCU in the battery cell in sequence; the receiving coil, the secondary compensation circuit and the rectifier are connected in sequence, and the battery cell is connected to the rectifier as a load battery; the secondary modulation and demodulation module interacts with the secondary compensation circuit to inject the data signal output by the secondary MCU into the secondary compensation circuit;

[0013] The secondary MCU is used to obtain the charge state of the battery cell in real time and feed it back to the primary MCU when the reconstructed battery pack is replenished with energy. The primary MCU is used to determine whether the battery cell is full based on the charge state of the battery cell, and can output a cut-off signal when the battery cell is full to cut off the receiving coil of the secondary wireless energy signal transmission device corresponding to the battery cell.

[0014] Furthermore, the primary MCU can control the primary isolation transformer to inject the data signal output by the primary MCU into the primary compensation circuit through the primary modulation and demodulation module in a high-order harmonic manner;

[0015] The secondary MCU of the battery cell can control the secondary isolation transformer to inject the data signal output by the secondary MCU into the secondary compensation circuit through the secondary modulation and demodulation module in a high-order harmonic manner.

[0016] A method for reconfiguring a battery pack for underwater equipment under multiple working conditions based on wireless energy communication technology comprises the following steps:

[0017] Step 1, establishing a database of voltage, current, power and number of battery cells required for underwater equipment at different navigation stages, and embedding the database into the underwater equipment control system;

[0018] Step 2: The underwater equipment control system communicates with the underwater base station, controls the underwater equipment to dock with the underwater charging base station, and performs energy replenishment;

[0019] Step 3: The underwater equipment control system obtains the current output power, voltage and current of the reconstructed battery pack in the underwater equipment, and determines whether the current output power, voltage and current meet the requirements of the task to be performed by the underwater equipment. If so, the underwater equipment directly performs the corresponding task; if not, proceed to step 4 to reconstruct the battery pack;

[0020] Step 4, the secondary MCU of each battery cell obtains the current temperature, voltage, current and available capacity data information of the corresponding battery cell, and uploads the data information to the underwater equipment control system; the underwater equipment control system performs safety diagnosis on the battery cell according to the received current temperature, voltage, current and available capacity data information of the battery cell: if the battery cell is determined to be an abnormal battery cell, the location information of the abnormal battery cell is obtained; if the battery cell is determined to be a normal battery cell, the location information of the normal battery cell is obtained and the process goes to step 5;

[0021] Step 5, the underwater equipment control system outputs an isolation instruction to the secondary MCU of each abnormal battery cell according to the position information of the abnormal battery cell, controls to cut off the operation of the abnormal battery cell, and realizes the isolation of the abnormal battery cell;

[0022] Step 6: The underwater equipment control system determines the normal battery cells involved in the reconstruction according to the voltage, current and power requirements of the underwater equipment to be performed, and obtains a battery pack reconstruction plan;

[0023] Step 7. According to the battery pack reconstruction plan obtained in step 6, the underwater equipment control system outputs a reconstruction instruction to the secondary MCUs of all normal battery cells participating in the reconstruction. The secondary MCUs of the battery cells participating in the reconstruction output a conduction control signal and control the conduction of the secondary wireless energy signal transmission devices at the input and output ends of the battery cells participating in the reconstruction, thereby realizing the reconstruction of the battery pack.

[0024] Furthermore, the step 2 comprises the following steps:

[0025] Step 2.1, the secondary MCU of each battery cell obtains the charge state of the corresponding battery cell in real time, and transmits it to the primary wireless energy signal transmission device of the underwater charging base station through the secondary wireless energy signal transmission device of the battery cell;

[0026] Step 2.2, the primary wireless energy signal transmission device determines whether the battery cell is fully charged according to the charge state of each battery cell obtained: when the charge state is 0-1, it means that the battery cell is not fully charged; when the charge state is 1, it means that the battery cell is fully charged, and the primary MCU outputs a disconnect signal to control the receiving coil of the secondary wireless energy signal transmission device corresponding to the battery cell to disconnect;

[0027] Step 2.3: After all battery cells are fully charged, the reconstructed battery pack is fully charged, and the underwater equipment control system controls the underwater equipment to leave the underwater charging base station.

[0028] Furthermore, in step 4, the specific process of performing safety diagnosis on the battery cell is as follows:

[0029] Step 4.1, obtaining the safe voltage range, safe current range, safe temperature range and rated capacity of the battery block;

[0030] Step 4.2, obtaining the current voltage, current, temperature and available capacity of each battery block in the battery cell, and judging whether the current voltage, current and temperature are respectively within the safe voltage range, safe current range and safe temperature range, and judging whether the available capacity is higher than the set ratio of the rated capacity. If all of them are yes, it is a normal battery; if any one of them is no, it is a faulty battery;

[0031] Step 4.3, based on the fault judgment result of the battery blocks in the battery cell in step 4.2, determine whether the battery cell is normal: if any battery block is a faulty battery, the battery cell is an abnormal battery cell; if all battery blocks in the battery cell are normal batteries, the battery cell is a normal battery cell.

[0032] The advantages of the present invention are:

[0033] 1. The underwater equipment multi-condition reconfiguration battery pack designed by the present invention includes a multi-layer battery module, each layer of the battery module includes a plurality of battery cells, and the two ends of the battery cells are respectively provided with secondary wireless energy communication simultaneous transmission devices, and the underwater equipment control system is pre-set with a database of voltage, current, power and number of battery cells required for different navigation stages of the underwater equipment. During the service of the underwater equipment, the underwater equipment control system can control the on and off of the battery cells according to the navigation requirements of the underwater equipment, and adjust the series and parallel relationship of the battery cells in the battery pack, so that the output power of the reconfigured battery pack meets the navigation power requirements of the underwater equipment, and realizes the adaptive adjustment of the output power of the underwater equipment battery pack, while avoiding energy waste caused by excessive output power; the reconfiguration battery pack of the present invention supplies power to the underwater equipment based on wireless energy communication technology, avoids the thermal effect problem caused by the traditional power regulation method, and improves the energy utilization rate of the underwater equipment multi-condition reconfiguration battery pack.

[0034] 2. When the energy of the reconstructed battery pack is insufficient, the underwater equipment multi-condition reconstructed battery pack designed by the present invention realizes battery pack energy replenishment by docking with the underwater charging base station to synchronize the energy and data information. When a battery cell fails, the present invention controls the disconnection of the failed battery cell through the underwater equipment control system to control the reconstruction of the battery pack, thus avoiding the time-consuming and costly complex process of salvaging and launching underwater equipment to replace the battery pack when the traditional battery pack fails or the energy is insufficient, and greatly improving the endurance and concealment of the underwater equipment during underwater operations.

[0035] 3. The present invention adopts wireless energy signal transmission technology, which can achieve battery pack power adjustment without physical contact, avoiding problems such as contact sparks and interface exposure caused by existing adjustment methods, and ensuring the safety of underwater equipment battery packs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0037] Figure 1 It is a schematic diagram of the structure of a battery pack monomer in a multi-operating-condition reconfigurable battery pack for underwater equipment of the present invention;

[0038] Figure 2 It is a schematic diagram of charging the multi-condition reconfigurable battery pack of underwater equipment of the present invention;

[0039] Figure 3 It is a diagram of the structure of the wireless simultaneous transmission system of the present invention;

[0040] Figure 4 This is a simplified flow chart of the method for reconfiguring a battery pack for underwater equipment under multiple working conditions of the present invention;

[0041] Figure 5It is a schematic diagram of the reconstruction of the multi-condition reconfigurable battery pack of underwater equipment from the cruising stage to the mission execution stage of the present invention;

[0042] In the figure: 1-battery cell, 2-secondary wireless energy transmission device, 3-primary wireless energy transmission device. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below. The embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0044] Reference Figure 1-Figure 2 The multi-condition reconstructed battery pack for underwater equipment based on wireless energy communication technology includes multiple layers of battery modules, each layer of battery modules includes multiple battery cells 1, and each battery cell 1 is composed of several battery blocks connected in series. Specifically, the number of layers of the battery modules and the number of battery cells in each layer of battery modules are calculated according to the maximum voltage and maximum current required during the service of underwater equipment. Since the voltage that a single battery block can provide is much smaller than the demand of underwater equipment, the present invention uses multiple battery blocks connected in series to form a battery cell, and when a battery block fails, the entire battery cell can be directly replaced, avoiding the complexity of assembling a battery pack using a single battery block and replacing it when a failure occurs.

[0045] The battery cell is provided with a secondary MCU, and the input and output ends of the battery cell are provided with a secondary wireless energy transmission device 2. The underwater equipment control system is pre-installed with a database of voltage, current, power and number of battery cells required for underwater equipment to perform different tasks. The underwater equipment control system can send a reconstruction instruction to the secondary MCU of the battery cell according to the power requirements of the tasks to be performed by the underwater equipment and the current output voltage, current and power of the battery pack. The secondary MCU controls the secondary wireless energy transmission device on the battery cell to turn on or off according to the reconstruction instruction to achieve battery pack reconstruction.

[0046] The primary wireless energy communication simultaneous transmission device 3 of the underwater charging base station is used to connect with the primary wireless energy communication simultaneous transmission device 3 of the underwater charging base station to charge the reconstructed battery pack through wireless energy communication technology.

[0047] In an embodiment of the present invention, the underwater equipment multi-condition reconstruction battery pack includes two layers of battery cells, and each layer includes three rows and three columns, a total of nine battery cells. Assuming that the voltage that each battery cell can provide is U0 and the current is I0, the corresponding upper and lower battery cells can provide a voltage of 2U0 when connected in series. If the upper and lower battery cells corresponding to n groups are first connected in series in sequence, and then connected in parallel to form a battery pack, the battery pack can provide a current of nI0 (n=1, 2,...9). It can be seen that the battery cells in the underwater equipment multi-condition reconstruction battery pack in an embodiment of the present invention have 18 series-parallel combinations, which can provide a voltage of U0 or 2U0 and a current of nI0, a total of 18 voltage and current combinations, to meet the different power requirements of underwater equipment.

[0048] Reference Figure 3 The primary wireless energy signal transmission device 3 includes a primary MCU, a primary isolation transformer, a primary modulation and demodulation module, a DC power supply, an inverter, a primary compensation circuit and a transmitting coil. The primary MCU, the primary isolation transformer and the primary modulation and demodulation module are connected in sequence, and the DC power supply, the inverter, the primary compensation circuit and the transmitting coil are connected in sequence. The primary modulation and demodulation module interacts with the primary compensation circuit to inject the data signal output by the primary MCU into the primary compensation circuit. The primary MCU can determine whether the battery cell is fully charged according to the current charge state of the battery cell transmitted by the secondary MCU during energy replenishment.

[0049] The secondary wireless energy signal transmission device 2 includes a secondary isolation transformer, a secondary modulation and demodulation module, a receiving coil, a secondary compensation circuit and a rectifier. The secondary isolation transformer and the secondary modulation and demodulation module are connected to the secondary MCU of the battery cell 1 in sequence, the receiving coil, the secondary compensation circuit and the rectifier are connected in sequence, and the battery cell 1 is connected to the rectifier as a load battery. The secondary modulation and demodulation module interacts with the secondary compensation circuit to inject the data signal output by the secondary MCU into the secondary compensation circuit. The secondary MCU of the battery cell 1 can control the secondary isolation transformer to inject the data signal output by the secondary MCU into the secondary compensation circuit through the secondary modulation and demodulation module in a high-order harmonic manner. The secondary MCU is used to collect the current charge state of the battery cell during energy replenishment, and transmit the information to the primary MCU through the secondary wireless energy signal transmission device 2 and the primary wireless energy signal transmission device 3, and turn on or off the receiving coil of the secondary wireless energy signal transmission device 2 according to the control instruction of the primary MCU.

[0050] The primary MCU can control the primary isolation transformer to inject the data signal output by the primary MCU into the primary compensation circuit through the primary modulation and demodulation module in a high-order harmonic manner. At the same time, the DC power output by the DC power supply is processed by the inverter and input into the primary compensation circuit to obtain a mixed signal of energy and data signals. The mixed signal is coupled to the secondary compensation circuit through the alternating electromagnetic field generated by the transmitting coil and the receiving coil. The mixed signal is separated from the data signal by the secondary modulation and demodulation module. The data signal is transmitted to the secondary MCU of the battery block through the secondary isolation transformer, and the energy is transmitted to the battery cell after rectification by the rectifier.

[0051] Reference Figure 4 , a method for reconfiguring a battery pack for underwater equipment under multiple working conditions based on wireless energy communication technology, comprising the following steps:

[0052] Step 1: Establish a database of voltage, current, power and number of battery cells required for underwater equipment in different navigation phases, and embed the database into the underwater equipment control system.

[0053] Step 2: The underwater equipment control system communicates with the underwater charging base station to control the underwater equipment to dock with the underwater charging base station for energy replenishment.

[0054] During the energy replenishment process, the secondary MCU of each battery cell obtains the charge state of the corresponding battery cell in real time, and transmits it to the primary wireless energy communication device of the underwater charging base station through the secondary wireless energy communication device of the battery cell. The primary MCU of the primary wireless energy communication device determines whether the battery cell is full according to the obtained charge state of the battery cell: when the charge state is 0-1, it means that the battery cell is not full; when the charge state is 1, it means that the battery cell is full, and the primary MCU outputs a disconnection signal to control the receiving coil of the secondary wireless energy communication device of the corresponding battery cell to disconnect. When all battery cells are full, the reconstructed battery pack is charged, and the underwater equipment control system controls the underwater equipment to leave the underwater charging base station.

[0055] In step 3, the underwater equipment control system obtains the current output power, voltage and current of the reconstructed battery pack in the underwater equipment, and determines whether the current output power, voltage and current meet the requirements of the task to be performed by the underwater equipment. If so, the underwater equipment directly performs the corresponding task; if not, enter step 4 to reconstruct the battery pack and adjust the series-parallel form of the battery cells.

[0056] Step 4, the secondary MCU of each battery cell obtains the current temperature, voltage, current and available capacity data information of the corresponding battery cell, and uploads the data information to the underwater equipment control system; the underwater equipment control system performs safety diagnosis on the battery cell according to the received current temperature, voltage, current and available capacity data information of the battery cell: if the battery cell is determined to be an abnormal battery cell, the location information of the abnormal battery cell is obtained; if the battery cell is determined to be a normal battery cell, the location information of the normal battery cell is obtained and the process goes to step 5.

[0057] In the embodiment of the present invention, since the battery cell is composed of three battery blocks connected in series, when the voltage of any battery block is not within the safe range, the battery block may have overvoltage or low voltage problems during charging; when the battery block temperature exceeds the safe temperature range, it may cause thermal runaway problems; at the same time, when the available capacity of the battery block is lower than a certain percentage of the rated capacity, it is considered that the battery block has aged and there is a safety risk, and it cannot be used any more. Therefore, it is necessary to perform safety diagnosis on a single battery cell, and the specific process is as follows:

[0058] Step 4.1, obtain the safe voltage range, safe current range, safe temperature range and rated capacity of the battery block.

[0059] Step 4.2, obtain the current voltage, current, temperature and available capacity of the battery block, determine whether the current voltage, current and temperature are respectively within the safe voltage range, safe current range and safe temperature range, and determine whether the available capacity is higher than the set proportion of the rated capacity. If all are yes, it is a normal battery; if any one is no, it is a faulty battery.

[0060] In this embodiment, when the available capacity of a battery block is lower than 80% of the rated capacity, it is considered that the battery block has aged and cannot be used any further.

[0061] Step 4.3, based on the fault judgment result of the battery block in the battery cell in step 4.2, determine whether the battery cell is normal: if any battery block is a faulty battery, the battery cell is an abnormal battery cell; if all three battery blocks are normal batteries, the battery cell is a normal battery cell.

[0062] Step 5: the underwater equipment control system outputs an isolation instruction to the secondary MCU of each abnormal battery cell according to the position information of the abnormal battery cell, controls the shutdown of the abnormal battery cell, and isolates the abnormal battery cell.

[0063] Step 6: The underwater equipment control system determines the normal battery cells that participate in the reconstruction according to the voltage, current and power requirements of the task to be performed by the underwater equipment, and obtains a battery pack reconstruction plan.

[0064] Step 7. According to the battery pack reconstruction plan obtained in step 6, the underwater equipment control system outputs a reconstruction instruction to the secondary MCUs of all normal battery cells participating in the reconstruction. The secondary MCUs of the normal battery cells participating in the reconstruction output a conduction control signal and control the conduction of the secondary wireless energy signal transmission devices at the input and output ends of the normal battery cells participating in the reconstruction, thereby realizing the battery pack reconstruction.

[0065] After the battery pack is reconstructed, the underwater equipment can perform corresponding cruise missions or other tasks as required. After each mission, it needs to return to the underwater charging base station for energy replenishment.

[0066] Reference Figure 5 ,When the underwater equipment is cruising at low speed and low power, due to the large internal resistance of the load, it is necessary to increase the number of parallel battery cells in the reconstructed battery pack to increase the output current to meet the cruising power demand; Figure 5 The left figure in the middle shows the series-parallel connection of battery cells in the battery pack of the underwater equipment in the low-speed, low-power cruising stage in the embodiment. At this time, the battery pack is composed of three battery cells in parallel. When the underwater equipment needs to enter the mission execution stage, the underwater equipment requires a higher speed and greater power. If the power output of the current series-parallel reconstruction battery pack cannot meet the power demand of the underwater equipment in the mission execution stage, it is necessary to connect multiple battery cells in series to increase the output voltage of the reconstruction battery pack to meet the power demand of the mission execution stage; Figure 5 The middle right figure shows the series-parallel connection of battery cells in the battery pack of the underwater equipment in the high-speed, low-power cruising stage in the embodiment. First, the two battery cells in the upper battery module of the battery pack are connected in series with the corresponding two battery cells in the lower battery module, and then the series-connected battery cells are connected in parallel to form the required battery pack. The above power regulation is controlled and realized by the underwater equipment control system.

[0067] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be included in the protection scope of the present invention.

Claims

1. A multi-condition reconfigurable battery pack for underwater equipment based on wireless energy communication technology, characterized in that: The reconstructed battery pack includes multiple layers of battery modules, each layer of battery modules includes multiple battery cells, and a single battery cell is composed of a plurality of battery blocks connected in series; A secondary MCU is provided in each of the battery cells, and a secondary wireless energy transmission device is provided at both the input and output ends of the battery cells; the secondary wireless energy transmission device is connected to the primary wireless energy transmission device of the underwater charging base station to realize energy replenishment of the reconstructed battery pack; The underwater equipment control system is pre-installed with a database of voltage, current, power and number of battery cells required for underwater equipment to perform different tasks; The underwater equipment control system can send a battery pack reconstruction instruction to the secondary MCU of the battery cell according to the voltage, current, power requirements of the underwater equipment to be performed and the current battery pack output parameter size; The secondary MCU is used to control the secondary wireless energy communication simultaneous transmission device of the battery cell to be turned on or off according to the battery pack reconstruction instruction sent by the underwater equipment control system to realize battery pack reconstruction; and is used to obtain the charge state of the battery cell in real time when the reconstructed battery pack is replenished with energy and feed it back to the primary wireless energy communication simultaneous transmission device.

2. According to claim 1, the underwater equipment multi-condition reconfiguration battery pack based on wireless energy communication technology is characterized in that: The number of layers of the battery modules and the number of battery cells in each layer of the battery modules are calculated based on the maximum voltage and maximum current required during the service of the underwater equipment.

3. According to claim 1, the underwater equipment multi-condition reconfiguration battery pack based on wireless energy communication technology is characterized in that: The primary wireless energy signal transmission device includes a primary MCU, a primary isolation transformer, a primary modulation and demodulation module, a DC power supply, an inverter, a primary compensation circuit and a transmitting coil; the primary MCU, the primary isolation transformer and the primary modulation and demodulation module are connected in sequence, and the DC power supply, the inverter, the primary compensation circuit and the transmitting coil are connected in sequence; the primary modulation and demodulation module interacts with the primary compensation circuit to inject the data signal output by the primary MCU into the primary compensation circuit; The secondary wireless energy signal transmission device includes a secondary isolation transformer, a secondary modulation and demodulation module, a receiving coil, a secondary compensation circuit and a rectifier; the secondary isolation transformer and the secondary modulation and demodulation module are connected to the secondary MCU in the battery cell in sequence; the receiving coil, the secondary compensation circuit and the rectifier are connected in sequence, and the battery cell is connected to the rectifier as a load battery; the secondary modulation and demodulation module interacts with the secondary compensation circuit to inject the data signal output by the secondary MCU into the secondary compensation circuit; The secondary MCU is used to obtain the charge state of the battery cell in real time and feed it back to the primary MCU when the reconstructed battery pack is replenished with energy. The primary MCU is used to determine whether the battery cell is full based on the charge state of the battery cell, and can output a cut-off signal when the battery cell is full to cut off the receiving coil of the secondary wireless energy signal transmission device corresponding to the battery cell.

4. According to claim 3, the underwater equipment multi-condition reconfiguration battery pack based on wireless energy communication technology is characterized in that: The primary MCU can control the primary isolation transformer to inject the data signal output by the primary MCU into the primary compensation circuit through the primary modulation and demodulation module in a high-order harmonic manner; The secondary MCU of the battery cell can control the secondary isolation transformer to inject the data signal output by the secondary MCU into the secondary compensation circuit through the secondary modulation and demodulation module in a high-order harmonic manner.

5. A method for reconfiguring a battery pack for underwater equipment under multiple working conditions based on wireless energy communication technology, characterized in that: The following steps are involved: Step 1, establishing a database of voltage, current, power and number of battery cells required for underwater equipment at different navigation stages, and embedding the database into the underwater equipment control system; Step 2: The underwater equipment control system communicates with the underwater base station, controls the underwater equipment to dock with the underwater charging base station, and performs energy replenishment; Step 3: The underwater equipment control system obtains the current output power, voltage and current of the reconstructed battery pack in the underwater equipment, and determines whether the current output power, voltage and current meet the requirements of the task to be performed by the underwater equipment. If so, the underwater equipment directly performs the corresponding task; if not, proceed to step 4 to reconstruct the battery pack; Step 4, the secondary MCU of each battery cell obtains the current temperature, voltage, current and available capacity data information of the corresponding battery cell, and uploads the data information to the underwater equipment control system; The underwater equipment control system performs safety diagnosis on the battery cell according to the received current temperature, voltage, current and available capacity data information of the battery cell: if the battery cell is determined to be an abnormal battery cell, the location information of the abnormal battery cell is obtained; If the battery cell is determined to be a normal battery cell, the position information of the normal battery cell is obtained and the process goes to step 5; Step 5, the underwater equipment control system outputs an isolation instruction to the secondary MCU of each abnormal battery cell according to the position information of the abnormal battery cell, controls to cut off the operation of the abnormal battery cell, and realizes the isolation of the abnormal battery cell; Step 6: The underwater equipment control system determines the normal battery cells involved in the reconstruction according to the voltage, current and power requirements of the underwater equipment to be performed, and obtains a battery pack reconstruction plan; Step 7. According to the battery pack reconstruction plan obtained in step 6, the underwater equipment control system outputs a reconstruction instruction to the secondary MCUs of all normal battery cells participating in the reconstruction. The secondary MCUs of the battery cells participating in the reconstruction output a conduction control signal and control the conduction of the secondary wireless energy signal transmission devices at the input and output ends of the battery cells participating in the reconstruction, thereby realizing the reconstruction of the battery pack.

6. The reconstruction method according to claim 5, characterized in that: The step 2 comprises the following steps: Step 2.1, the secondary MCU of each battery cell obtains the charge state of the corresponding battery cell in real time, and transmits it to the primary wireless energy signal transmission device of the underwater charging base station through the secondary wireless energy signal transmission device of the battery cell; Step 2.2, the primary wireless energy signal transmission device determines whether the battery cell is fully charged according to the charge state of each battery cell obtained: when the charge state is 0-1, it means that the battery cell is not fully charged; when the charge state is 1, it means that the battery cell is fully charged, and the primary MCU outputs a disconnect signal to control the receiving coil of the secondary wireless energy signal transmission device corresponding to the battery cell to disconnect; Step 2.3: After all battery cells are fully charged, the reconstructed battery pack is fully charged, and the underwater equipment control system controls the underwater equipment to leave the underwater charging base station.

7. The reconstruction method according to claim 5, characterized in that: In step 4, the specific process of performing safety diagnosis on the battery cell is as follows: Step 4.1, obtaining the safe voltage range, safe current range, safe temperature range and rated capacity of the battery block; Step 4.2, obtaining the current voltage, current, temperature and available capacity of each battery block in the battery cell, and judging whether the current voltage, current and temperature are respectively within the safe voltage range, safe current range and safe temperature range, and judging whether the available capacity is higher than the set ratio of the rated capacity. If all of them are yes, it is a normal battery; if any one of them is no, it is a faulty battery; Step 4.3, based on the fault judgment result of the battery blocks in the battery cell in step 4.2, determine whether the battery cell is normal: if any battery block is a faulty battery, the battery cell is an abnormal battery cell; if all battery blocks in the battery cell are normal batteries, the battery cell is a normal battery cell.

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