Efficient fast charging system for portable ultrasonic equipment

Abstract

The invention relates to the technical field of charging systems, in particular to an efficient and quick charging system for portable ultrasonic equipment. Comprising a charging control module which comprises a plurality of charging control units corresponding to charging stages divided according to the charging amount of a battery; the heat dissipation device is controllably arranged in the ultrasonic equipment; the temperature management module comprises a sensor, is connected with the ultrasonic equipment and is used for acquiring battery data and environment data of the ultrasonic equipment; the temperature prediction unit is connected with the sensor and is used for predicting future temperature data according to the historical temperature data and the environment data of the ultrasonic equipment; and the advanced regulation and control unit is connected with the temperature prediction unit and is used for outputting a temperature control signal for controlling the heat dissipation device according to the future temperature data. By optimizing the charging method and the thermal management mode, the ultrasonic equipment can be fully charged in a short time, and meanwhile, the service life of the battery and the safety of the charging process are ensured, so that the requirements of emergency medical scenes are met.

Description

Technical Field

[0001] The present invention relates to the technical field of charging systems, and in particular to a high-efficiency and fast charging system for portable ultrasonic equipment. Background Art

[0002] With the development of medical technology, portable ultrasound devices have played an important role in clinical diagnosis and emergency treatment. These devices are widely used in emergency, field rescue and home care due to their portability and efficiency. However, portable ultrasound devices often face the problem of insufficient battery life in actual use, especially in emergency situations, where fast charging becomes an urgent need. Therefore, it is of great practical significance to develop an efficient fast charging technology to ensure that the device is fully charged in a short time.

[0003] Most portable ultrasound devices on the market currently use traditional lithium batteries as power sources, which take a long time to charge, usually taking several hours to fully charge. This long charging process is obviously not ideal in emergency medical scenarios. In addition, existing fast charging technologies often face the following problems when applied to portable ultrasound devices:

[0004] 1. Insufficient charging speed: The charging speed of existing fast charging technology still cannot meet the needs of emergency medical scenarios.

[0005] 2. Shortened battery life: Frequent fast charging may cause the battery life to be significantly shortened, affecting the long-term use of the device.

[0006] 3. Safety issues: During fast charging, battery overheating and overvoltage may cause safety hazards. Summary of the invention

[0007] The purpose of the present invention is to provide an efficient and fast charging system for a portable ultrasonic device to solve the above technical problems;

[0008] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0009] Highly efficient and fast charging system for portable ultrasound devices, including,

[0010] A charging control module, comprising a plurality of charging control units corresponding to charging stages divided according to the charge amount of the battery, wherein the charging control unit is used to adjust the charging mode of the battery in each charging stage respectively;

[0011] A heat dissipation device controllably disposed within the ultrasonic device;

[0012] A temperature management module is connected to the heat dissipation device, and the temperature management module includes:

[0013] A sensor connected to the ultrasonic device and used to obtain battery data and environmental data of the ultrasonic device;

[0014] A temperature prediction unit, connected to the sensor, for predicting future temperature data based on the historical temperature data of the ultrasonic device and the environmental data;

[0015] The advance control unit is connected to the temperature prediction unit and is used to output a temperature control signal for controlling the heat dissipation device according to the future temperature data.

[0016] Preferably, the charging stage includes an initial fast charging stage, an intermediate constant current charging stage and a later constant voltage charging stage, and the charging control unit includes an early charging control unit, a mid-term charging control unit and a late charging control unit corresponding to the charging stage.

[0017] Preferably, the early charging control unit charges the battery with a fast charging current, and the early charging control unit is connected to the sensor to obtain the battery data and the environmental data, and is used to adjust the fast charging current according to the battery data and the environmental data. The calculation formula is:

[0018]

[0019] Among them, I fast represents the fast charging current, k 1 represents the charging coefficient of the initial fast charging stage, C represents the capacity of the battery, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature.

[0020] Preferably, the preliminary charging control unit is also provided with an initial charging stage prediction model based on machine learning, which is used to collect and analyze the historical charging data of the preliminary charging control unit through a machine learning method, predict the performance of the fast charging current under different environmental data, and dynamically adjust the calculation formula of the fast charging current according to the prediction result, and the historical charging data includes the historical fast charging current and the historical environmental data.

[0021] Preferably, the mid-term charging control unit charges the battery with a constant current, and the mid-term charging control unit is connected to the sensor to obtain the battery data and the environmental data, and is used to adjust the constant current charging current according to the battery data and the environmental data. The calculation formula is:

[0022]

[0023] Among them, I constant represents the constant current charging current, k 2 represents the charging coefficient of the mid-term constant current charging stage, C represents the capacity of the battery, V current Indicates the current battery voltage in the battery data, V min Indicates the minimum voltage, V max Indicates the maximum voltage;

[0024] The mid-term charging control unit also includes a user behavior analysis model for collecting and analyzing the user's charging behavior data, and adjusting the constant current charging current according to the analysis results. The charging behavior data includes the charging frequency, charging time and the environmental data in the intermediate constant current charging stage.

[0025] Preferably, the later charging control unit charges the battery at a constant charging voltage, and the later charging control unit is connected to the sensor to obtain the battery data and the environmental data, and is used to adjust the constant charging voltage according to the battery data and the environmental data, and the calculation formula is,

[0026]

[0027] Among them, V constant represents the constant voltage charging voltage, V max Indicates the maximum voltage, k 3 represents the charging coefficient of the later constant voltage charging stage, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature;

[0028] The post-charging control unit further includes a charging termination subunit, which is used to detect the battery data and terminate charging according to the detection result.

[0029] Preferably, the heat dissipation device comprises:

[0030] A graphite heat sink is disposed at a preset position of the battery and the charging circuit in the ultrasonic device;

[0031] A heat dissipation pipe, disposed in the ultrasonic device, and used for combining with the graphite heat sink to transfer the heat of the battery and the charging circuit to the device housing of the ultrasonic device;

[0032] The fan is arranged in the ultrasonic device and is used for removing the heat in the ultrasonic device through air convection.

[0033] Preferably, the sensor at least includes:

[0034] A battery parameter sensor, connected to the battery, for obtaining status data of the battery;

[0035] n temperature sensors are provided in the ultrasonic device and are used to obtain temperature data of various areas in the ultrasonic device; wherein n is a positive integer;

[0036] A humidity sensor is provided in the ultrasonic device and is used to obtain humidity data;

[0037] An ambient light sensor, disposed on a device housing of the ultrasound device, for acquiring ambient light data;

[0038] A pressure sensor, provided on the device housing of the ultrasonic device, for obtaining pressure data;

[0039] The sensor is also connected to a temperature fusion module for fusing the temperature data to obtain the fused ambient temperature. The calculation formula is:

[0040]

[0041] Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the ith temperature sensor, w i represents the weight of the i-th temperature sensor, where i is a positive integer from 1 to n.

[0042] Preferably, the temperature prediction unit has a temperature change prediction model based on a long short-term memory network, and the prediction calculation formula is:

[0043] T predicted =LSTM(T history ,E current )

[0044] Where T predicted represents the future temperature data, LSTM represents the temperature change prediction model, T history Represents the historical temperature data, E current Indicates the current environmental data;

[0045] The advance control unit receives the future temperature data and is used to determine whether the future temperature data exceeds a safety range. If so, the advance control unit outputs the temperature control signal for starting the heat dissipation device in advance; if not, the advance control unit outputs the temperature control signal for reducing the power of the heat dissipation device.

[0046] Preferably, the temperature management module further includes an adaptive adjustment unit for adaptively adjusting the power of the heat dissipation device according to the battery data and the environmental data, and the adjustment formula is:

[0047]

[0048] Where P adjusted Indicates the adjusted power, P max Indicates the maximum power, T current Indicates the current battery temperature in the battery data, T optimal represents the optimal temperature, T max Indicates the maximum allowable temperature.

[0049] Beneficial effects of the present invention: Due to the adoption of the above technical scheme, the present invention optimizes the charging method and thermal management method through the charging control module and the temperature management module, so that the ultrasonic equipment can be fully charged in a short time, while ensuring the battery life and the safety of the charging process to meet the needs of emergency medical scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 4 is an architecture diagram of a high-efficiency and fast charging system for a portable ultrasound device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of 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.

[0052] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0053] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0054] Efficient and fast charging system for portable ultrasound devices, such as Figure 1 As shown, including

[0055] The charging control module 1 includes a plurality of charging control units corresponding to the charging stages divided according to the charging amount of the battery, and the charging control units are used to adjust the charging mode of the battery in each charging stage respectively;

[0056] A heat dissipation device 2 is controllably disposed in the ultrasonic device;

[0057] The temperature management module 3 is connected to the heat dissipation device 2, and the temperature management module 3 includes:

[0058] The sensor 31 is connected to the ultrasonic device and is used to obtain battery data and environmental data of the ultrasonic device;

[0059] The temperature prediction unit 32 is connected to the sensor 31 and is used to predict future temperature data based on the historical temperature data and environmental data of the ultrasonic device;

[0060] The advance control unit 33 is connected to the temperature prediction unit 32 and is used to output a temperature control signal for controlling the heat dissipation device 2 according to future temperature data.

[0061] Specifically, the present invention provides a fast charging system for a portable ultrasound device. By optimizing the charging method and thermal management system, the ultrasound device can be fully charged in a short time, while ensuring the battery life and the safety of the charging process to meet the needs of emergency medical scenarios.

[0062] In a preferred embodiment, the charging stage includes an initial fast charging stage, an intermediate constant current charging stage and a later constant voltage charging stage, and the charging control unit includes an early charging control unit 11, a mid-term charging control unit 12 and a late charging control unit 13 corresponding to the charging stages.

[0063] Specifically, the present invention adopts a multi-stage charging algorithm. In one embodiment, the charging amount below 20% can be set as the initial fast charging stage, the charging amount between 20% and 80% can be set as the intermediate constant current charging stage, and the charging amount exceeding 80% can be set as the later constant voltage charging stage;

[0064] In the initial fast charging stage, intelligent dynamic adjustment technology is used to optimize the fast charging current according to the real-time status of the battery. This method not only improves the charging speed, but also ensures the safety of the battery.

[0065] More specifically, in the initial fast charging stage, a charger that supports high power output is used, such as USB-C PD or other fast charging protocols, to ensure that sufficient current is provided in the initial stage;

[0066] An advanced battery management system (BMS) is integrated inside the battery to monitor the battery voltage, current and temperature in real time to ensure the safety of the battery during high current charging.

[0067] Dynamically adjust the fast charging current according to the real-time status of the battery, such as temperature, to avoid overheating and overvoltage.

[0068] In the intermediate constant current charging stage, intelligent constant current control technology is used to optimize the charging current according to the battery status reflected by the battery data and the environmental conditions reflected by the environmental data.

[0069] Further specifically, in the intermediate constant current charging stage, a constant current control circuit is used to ensure that a stable constant current charging current is provided in the intermediate constant current charging stage;

[0070] As the battery charge increases, the constant current charging current is gradually reduced to avoid overheating of the battery.

[0071] In the later constant-voltage charging stage, intelligent constant-voltage control technology is used to optimize the constant-voltage charging voltage according to the battery status reflected by the battery data and the environmental conditions reflected by the environmental data.

[0072] More specifically, a constant voltage control circuit is used to ensure that a stable constant voltage charging voltage is provided in the later charging stage.

[0073] As the battery approaches full charge, the constant voltage charging current is gradually reduced until the charging current drops to a safe level.

[0074] In a preferred embodiment, the early charging control unit 11 charges the battery with a fast charging current. The early charging control unit 11 is connected to the sensor 31 to obtain battery data and environmental data, and is used to adjust the fast charging current according to the battery data and environmental data. The calculation formula is:

[0075]

[0076] Among them, I fast represents the fast charging current, k 1 represents the charging factor in the initial fast charging stage, C represents the capacity of the battery, T currenet Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature.

[0077] Specifically, the present invention uses intelligent dynamic adjustment technology in the initial fast charging stage to optimize and adjust the fast charging current according to the real-time state of the battery. This method not only improves the charging speed, but also ensures the safety of the battery.

[0078] The present invention utilizes the sensor 31 to monitor the voltage, current, temperature and other parameters of the battery in real time, and dynamically adjusts the fast charging current in combination with the feedback of the sensor 31 .

[0079] The formula is,

[0080]

[0081] Among them, I fast represents the fast charging current, k 1 represents the charging factor in the initial fast charging stage, C represents the capacity of the battery, T currentIndicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature.

[0082] In a specific implementation, the present invention uses a charger that supports high power output, such as USB-C PD or other fast charging protocols, to ensure that sufficient current is provided in the initial fast charging stage.

[0083] In addition to directly connecting the sensor 31 to obtain the battery's voltage, current, temperature and other parameters, a battery management system (BMS) can also be integrated inside the battery to monitor the battery voltage, current and temperature in real time to ensure the safety of the battery during high current charging.

[0084] The dynamic current regulation function of the present invention dynamically adjusts the fast charging current according to the real-time status of the battery, such as the temperature of the battery, to avoid overheating and overvoltage.

[0085] More specifically, T ambient represents the ambient temperature in the environmental data. The sensor 31 of the present invention includes n temperature sensors 312, which are arranged in the ultrasonic device and used to obtain the temperature data of each area in the ultrasonic device, including the current battery temperature T current and ambient temperature T ambient , where n is a positive integer;

[0086] The present invention also includes a temperature fusion module for fusing temperature data to obtain the fused ambient temperature. The calculation formula is:

[0087]

[0088] Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the i-th temperature sensor 312, w i represents the weight of the i-th temperature sensor 312 , where i is a positive integer from 1 to n.

[0089] In order to ensure the accuracy of the ambient temperature, the ambient temperature T in the above fast charging current calculation formula ambient The temperature after fusion is T fused , thus more accurately taking into account the overall temperature state of the ultrasonic equipment, the formula is,

[0090]

[0091] Among them, I fast represents the fast charging current, k 1 represents the charging factor in the initial fast charging stage, C represents the capacity of the battery, T currentIndicates the current battery temperature in the battery data, T fused represents the temperature after fusion, T max Indicates the maximum allowable temperature.

[0092] In a preferred embodiment, the preliminary charging control unit 11 is also provided with an initial charging stage prediction model based on machine learning, which is used to collect and analyze the historical charging data of the preliminary charging control unit 11 through a machine learning method, predict the performance of the fast charging current under different environmental data, and dynamically adjust the calculation formula of the fast charging current according to the prediction results. The historical charging data includes historical fast charging current and historical environmental data.

[0093] Specifically, the present invention analyzes historical charging data through an initial charging stage prediction model based on machine learning, predicts the performance of the battery under different charging conditions, and optimizes the charging current and time. The implementation method includes:

[0094] Data collection and training: Collect a large amount of historical charging data, including voltage, current, temperature, environmental conditions, etc., to train the prediction model for the initial charging stage;

[0095] Real-time prediction and adjustment: During the initial fast charging stage, the prediction model of the initial charging stage makes predictions based on real-time data and dynamically adjusts the calculation formula of the fast charging current to optimize the charging strategy.

[0096] In a preferred embodiment, the mid-term charging control unit 12 charges the battery with a constant current. The mid-term charging control unit 12 is connected to the sensor 31 to obtain battery data and environmental data, and is used to adjust the constant current charging current according to the battery data and environmental data. The calculation formula is:

[0097]

[0098] Among them, I constant Indicates constant current charging current, k 2 Indicates the charging coefficient of the intermediate constant current charging stage, C represents the capacity of the battery, V current Indicates the current battery voltage in the battery data, V min Indicates the minimum voltage, V max Indicates the maximum voltage;

[0099] The mid-term charging control unit 12 also includes a user behavior analysis model for collecting and analyzing the user's charging behavior data and adjusting the constant current charging current according to the analysis results. The charging behavior data includes the charging frequency, charging time and environmental data in the intermediate constant current charging stage.

[0100] Specifically, in the intermediate constant current charging stage, an intelligent constant current control technology is used to optimize the charging current according to the battery status and environmental conditions.

[0101] According to the real-time status of the battery and environmental conditions, the constant current charging current is dynamically adjusted. The formula is:

[0102]

[0103] Among them, I constant Indicates constant current charging current, k 2 Indicates the charging coefficient of the mid-term constant current charging stage, C represents the capacity of the battery, V current Indicates the current battery voltage in the battery data, V min Indicates the minimum voltage, V max Indicates the maximum voltage;

[0104] The mid-term charging control unit 12 is provided with a constant current control circuit, which ensures that a stable charging current is provided in the intermediate constant current charging stage.

[0105] As the battery charge increases, gradually reduce the charging current to avoid overheating of the battery.

[0106] Specifically, the mid-term charging control unit 12 also optimizes the mid-term charging strategy by analyzing the user's charging behavior and usage habits, thereby improving the charging efficiency and user experience, including:

[0107] Behavioral data collection and analysis: collect users’ charging behavior data, including charging frequency, time, environment, etc., for analysis.

[0108] Personalized charging strategy: Based on the analysis results, personalized charging strategies are provided for different users to optimize the charging process.

[0109] More specifically, the user behavior analysis model needs to collect the charging frequency, charging time and environmental data of the user in the mid-term constant current charging stage. The above data is obtained from the battery data and environmental data acquired by the connected sensor 31, and the user behavior analysis model also collects user feedback, charging preferences, charging habits and other data to identify and infer typical user charging behavior patterns, preferences and trends;

[0110] The user behavior analysis model analyzes and processes the collected data through a machine learning algorithm to identify the rules therein. Based on the analysis results, the mid-term charging control unit 12 provides personalized charging strategies for different users; by dynamically adjusting the constant current charging current I constant , to optimize the charging process according to the real-time status of the battery and environmental conditions, ensuring that the charging process is both efficient and safe; thereby improving charging efficiency and optimizing user experience.

[0111] In a preferred embodiment, the post-charging control unit 13 charges the battery with a constant voltage charging voltage. The post-charging control unit 13 is connected to the sensor 31 to obtain battery data and environmental data, and is used to adjust the constant voltage charging voltage according to the battery data and environmental data. The calculation formula is:

[0112]

[0113] Among them, V constant Indicates constant voltage charging voltage, V max Indicates the maximum voltage, k 3 Indicates the charging coefficient in the later constant voltage charging stage, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature;

[0114] The post-charging control unit 13 also includes a charging termination subunit, which is used to detect battery data and terminate charging according to the detection result.

[0115] Specifically, in the later constant voltage charging stage, intelligent constant voltage control technology is used to optimize and adjust the constant voltage charging voltage according to the battery status reflected by the battery data and the environmental conditions reflected by the environmental data.

[0116] In dynamic constant voltage adjustment, according to the real-time status of the battery and environmental conditions, the formula for dynamically adjusting the constant voltage charging voltage is:

[0117]

[0118] Among them, V constant Indicates constant voltage charging voltage, V max Indicates the maximum voltage, k 3 Indicates the charging coefficient in the later constant voltage charging stage, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature;

[0119] The late charging control unit 13 of the present invention is provided with a constant voltage control circuit, through which a stable charging voltage is ensured in the late charging stage.

[0120] As the battery approaches full charge, the charge current is gradually reduced until the charge current drops to a safe level.

[0121] The post-charging control unit 13 also includes a termination charging subunit, which is used to detect battery data and terminate charging according to the detection result. The termination charging subunit uses intelligent termination charging technology to ensure that the battery automatically stops charging after being fully charged to prevent overcharging.

[0122] The termination condition detection method of the charging subunit is to monitor the battery voltage and current in real time, and automatically stop charging when the battery voltage reaches the maximum value and the charging current drops to a safe level.

[0123] The present invention also has an intelligent reminder subunit, which reminds the user through the display screen of the ultrasonic device or the mobile application after charging is completed, so as to prevent the user from being connected to the charger for a long time.

[0124] More specifically, T ambient represents the ambient temperature in the environmental data. The sensor 31 of the present invention includes n temperature sensors 312, which are arranged in the ultrasonic device and used to obtain the temperature data of each area in the ultrasonic device, including the current battery temperature T current and ambient temperature T ambient , where n is a positive integer;

[0125] The present invention also includes a temperature fusion module for fusing temperature data to obtain the fused ambient temperature. The calculation formula is:

[0126]

[0127] Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the i-th temperature sensor 312, w i represents the weight of the i-th temperature sensor 312 , where i is a positive integer from 1 to n.

[0128] In order to ensure the accuracy of the ambient temperature, the ambient temperature T in the above constant voltage charging voltage calculation formula ambient The temperature after fusion is T fused , thus more accurately taking into account the overall temperature state of the ultrasonic equipment, the formula is,

[0129]

[0130] Among them, V constant Indicates constant voltage charging voltage, V max Indicates the maximum voltage, k 3 Indicates the charging coefficient in the later constant voltage charging stage, T current Indicates the current battery temperature in the battery data, T fused represents the temperature after fusion, T max Indicates the maximum allowable temperature;

[0131] In a preferred embodiment, the heat dissipation device 2 includes:

[0132] A graphite heat sink 21 is provided at a preset position of a battery and a charging circuit in the ultrasonic device;

[0133] The heat dissipation pipe 22 is provided in the ultrasonic device and is used to combine with the graphite heat sink 21 to transfer the heat of the battery and the charging circuit to the device housing of the ultrasonic device;

[0134] The fan 23 is provided in the ultrasonic device and is used to remove the heat in the ultrasonic device through air convection.

[0135] Specifically, the ultrasonic device of the present invention has an optimized heat dissipation device 2, and the heat dissipation method of the ultrasonic device adopts an active heat dissipation design, including

[0136] Graphite heat sink 21, which has high thermal conductivity, is attached to key parts of the battery and charging circuit to quickly conduct heat to the device casing.

[0137] The heat dissipation pipe 22 is arranged inside the ultrasonic device. The ordinary heat dissipation pipe 22 transfers heat from the battery and the charging circuit to the device housing through the heat conductive material and is used in combination with the graphite heat sink 21 to improve the heat dissipation efficiency.

[0138] The fan 23 is a micro fan, which is arranged inside the ultrasonic device to remove heat by forced air convection, thereby ensuring that the temperature of the battery and the charging circuit is kept within a safe range.

[0139] More specifically, in the present invention, the graphite heat sink 21 is closely attached to the surface of the battery and the charging circuit. Since graphite has high thermal conductivity, it can quickly absorb and conduct heat.

[0140] One end of the heat pipe 22 is connected to the graphite heat sink 21, and the other end extends to the heat dissipation area of ​​the device housing. The heat pipe 22 can be made of high thermal conductivity materials such as copper or aluminum, so that heat can be efficiently conducted.

[0141] A thermal interface material with high thermal conductivity, such as thermal grease or thermal pad, is used at the connection between the graphite heat sink 21 and the heat pipe 22 to reduce thermal resistance and improve heat conduction efficiency.

[0142] The present invention arranges the heat dissipation pipe 22 on the key heat dissipation path inside the device to ensure that heat can be quickly transferred to the device housing through the heat dissipation pipe 22 and is used in combination with the graphite heat sink 21 to improve the overall heat dissipation efficiency.

[0143] At the same time, the device shell of the ultrasonic equipment is made of high thermal conductivity material and is designed with heat dissipation fins or holes to increase the heat dissipation area and further improve the heat dissipation effect.

[0144] In a preferred embodiment, the sensor 31 at least includes:

[0145] A battery parameter sensor 311 is connected to the battery and is used to obtain battery status data;

[0146] n temperature sensors 312 are provided in the ultrasonic device and are used to obtain temperature data of various areas in the ultrasonic device; wherein n is a positive integer;

[0147] A humidity sensor 313 is provided in the ultrasonic device and is used to obtain humidity data;

[0148] An ambient light sensor 314 is provided on the device housing of the ultrasound device and is used to obtain ambient light data;

[0149] The pressure sensor 315 is provided on the device housing of the ultrasonic device and is used to obtain pressure data;

[0150] The sensor 31 is also connected to a temperature fusion module for fusing the temperature data to obtain the fused ambient temperature. The calculation formula is:

[0151]

[0152] Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the i-th temperature sensor 312, w i represents the weight of the i-th temperature sensor 312 , where i is a positive integer from 1 to n.

[0153] Specifically, in order to ensure that the portable ultrasound device maintains an appropriate temperature during charging and use to avoid overheating or overcooling, the present invention also adopts a temperature management module 3, combined with sensor fusion, predictive control and adaptive adjustment technology, to achieve more efficient and intelligent temperature management.

[0154] The present invention arranges various types of sensors 31 inside the ultrasonic device and at key locations, including a battery parameter sensor 311, a temperature sensor 312, a humidity sensor 313, an ambient light sensor 314 and a pressure sensor 315, and acquires more comprehensive battery data and temperature data through multi-sensor fusion technology.

[0155] The battery parameter sensor 311 is connected to the battery and is used to obtain battery status data, such as battery voltage, current, charge capacity, charging time and other battery data;

[0156] The n temperature sensors 312 are arranged at key locations within the ultrasonic device, such as the battery, charging port, mainboard, and housing, to monitor the temperature of each part of the ultrasonic device in real time.

[0157] The humidity sensor 313 is arranged inside the device to monitor humidity changes and prevent condensation and short circuit caused by excessive humidity.

[0158] The ambient light sensor 314 is arranged on the device housing of the ultrasound device to monitor the external ambient light intensity and assist in temperature regulation.

[0159] The pressure sensor 315 is arranged on the device housing of the ultrasonic device to monitor external pressure changes and assist in temperature regulation.

[0160] Specifically, the present invention arranges temperature sensors 312 at key positions of the battery and the charging circuit to monitor the temperature changes inside the device in real time, and can transmit the data collected by the temperature sensor 312 to the battery management system (BMS) for real-time processing and analysis.

[0161] Specifically, the temperature fusion module is used for data fusion and processing. Through the data fusion algorithm, the data of multiple temperature sensors 312 are comprehensively processed to obtain the overall temperature status and environmental information of the equipment.

[0162] The temperature fusion module uses the Kalman filter algorithm to fuse sensor data, remove noise, and obtain more accurate temperature and environmental information.

[0163] Data fusion formula,

[0164]

[0165] Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the i-th temperature sensor 312, w i represents the weight of the i-th temperature sensor 312 , where i is a positive integer from 1 to n.

[0166] In a preferred embodiment, the temperature prediction unit 32 has a temperature change prediction model based on a long short-term memory network, and the prediction calculation formula is:

[0167] T predicted =LSTM(T history ,E current )

[0168] Where T predicted represents future temperature data, LSTM represents the temperature change prediction model, T history Represents historical temperature data, E current Indicates the current environment data;

[0169] The advance control unit 33 receives future temperature data and is used to determine whether the future temperature data exceeds a safety range. If so, the advance control unit 33 outputs a temperature control signal for starting the heat dissipation device 2 in advance; if not, the advance control unit 33 outputs a temperature control signal for reducing the power of the heat dissipation device 2 in advance.

[0170] Specifically, the temperature prediction unit 32 analyzes historical temperature data and environmental data through a machine learning algorithm, predicts future temperature change trends, and takes temperature control measures in advance.

[0171] By collecting a large amount of historical temperature data, environmental data and ultrasonic equipment usage data, the temperature change prediction model is trained. During the operation of the ultrasonic equipment, the temperature change prediction model makes predictions based on real-time data and adjusts the temperature control strategy in advance.

[0172] The temperature change prediction model uses the long short-term memory network (LSTM) model to predict temperature changes.

[0173] The prediction calculation formula is:

[0174] T predicted =LSTM(T history ,E current )

[0175] Where T predicted represents future temperature data, LSTM represents the temperature change prediction model, T history Represents historical temperature data, E current Represents the current environment data.

[0176] The advance control unit 33 is used to take temperature control measures in advance according to the prediction results to avoid the temperature being too high or too low. When the predicted temperature will exceed the safety range, the cooling system, such as the fan 23 or the heat pipe 22, is started in advance; when the predicted temperature will exceed the safety range, the power of the cooling device 2 is reduced in advance to reduce the heat generation.

[0177] In a preferred embodiment, the temperature management module 3 further includes an adaptive adjustment unit for adaptively adjusting the power of the heat dissipation device 2 according to the battery data and the environmental data. The adjustment formula is:

[0178]

[0179] Where P adjusted Indicates the adjusted power, P max Indicates the maximum power, T current Indicates the current battery temperature in the battery data, T optimal represents the optimal temperature, T max Indicates the maximum allowable temperature.

[0180] Specifically, the present invention adaptively adjusts the temperature control strategy according to real-time temperature and environmental data to ensure that the device can maintain a suitable temperature in different environments.

[0181] The adjustment formula is,

[0182]

[0183] Where P adjusted Indicates the adjusted power, P max Indicates the maximum power, T current Indicates the current battery temperature in the battery data, T optimal represents the optimal temperature, T max Indicates the maximum allowable temperature.

[0184] The present invention combines an adaptive adjustment strategy to intelligently control the working state of the heat dissipation device 2 to ensure that the temperature of the ultrasonic equipment is within a safe range. The heat dissipation device 2 includes a fan 23 and a heat dissipation pipe 22. The present invention dynamically adjusts the speed of the fan 23 according to temperature and environmental data to ensure the heat dissipation effect; and dynamically adjusts the working state of the heat dissipation pipe 22 according to temperature and environmental data to optimize the heat dissipation efficiency.

[0185] Specifically, the present invention can realize the function of dynamic charging current adjustment. When the temperature of the ultrasonic device is lower than a safety threshold, such as 40° C., the charging current is maintained at a higher level to achieve fast charging.

[0186] When the temperature of the ultrasonic device approaches the safety threshold, the charging current is gradually reduced to prevent the temperature from continuing to rise.

[0187] When the temperature of the ultrasonic device exceeds the safety threshold, the charging current is immediately and significantly reduced or charging is suspended, and charging is resumed after the temperature drops.

[0188] According to the specific characteristics of the battery and the ultrasonic device, the present invention can set a reasonable temperature threshold to ensure the safety and effectiveness of the charging process under different environments. In combination with the multi-stage charging algorithm, different temperature control strategies are adopted in different charging stages to ensure fast charging while avoiding over-temperature.

[0189] In a preferred embodiment, the present invention further includes a safety protection module for performing safety protection on the charging process of the battery, including:

[0190] Overvoltage protection: Overvoltage protection means real-time monitoring of the battery voltage during charging, and automatically stopping charging when the voltage exceeds the safety threshold.

[0191] Overcurrent protection: Overcurrent protection means real-time monitoring of the charging current during the charging process. When the current exceeds the safety threshold, the charging current is automatically reduced or charging is stopped.

[0192] Short circuit protection: Short circuit protection means that when a short circuit is detected during charging, the power supply will be automatically cut off to protect the safety of the battery and equipment.

[0193] In a preferred embodiment, the charging port of the ultrasound device adopts a waterproof and dustproof design to ensure safe use in various environments.

[0194] Specifically, the present invention adopts an interface type with a high waterproof and dustproof grade: a charging interface that meets IP67 or higher grades is selected, such as a USB-C interface, which has good waterproof and dustproof performance.

[0195] More specifically, a waterproof rubber ring is installed on the outer edge of the charging interface to ensure that the interface can be completely sealed after the charging cable is inserted to prevent water and dust from entering.

[0196] A protective cover with a sealing ring is provided on the outside of the charging port. When the charging port is not in use, the protective cover can be closed to further enhance the waterproof and dustproof effects.

[0197] The present invention can also coat the charging port and the surrounding circuit board with a nano-waterproof coating, so that a protective film is formed at the microscopic level to prevent moisture from invading the circuit. In this embodiment, a polyparaxylene (Parylene) coating is used.

[0198] Through the above technical solution, the present invention can significantly improve the charging speed of portable ultrasound equipment, so that it can be fully charged in a short time to meet the needs of emergency medical scenarios. At the same time, the optimized thermal management system and safety protection mechanism ensure the safety of the charging process and the life of the battery. The specific effects are as follows:

[0199] The charging speed is improved, and compared with traditional charging technology, the charging speed is increased by more than 50%.

[0200] Battery life is extended by more than 20% through optimization of charging algorithm and thermal management system.

[0201] Enhanced safety and multiple protection mechanisms significantly reduce safety risks during charging.

[0202] Specific embodiment 1, assuming that the battery capacity of a portable ultrasound device is 3000mAh, the multi-stage charging algorithm of the present invention is adopted. Charging starts when the battery power is 10%. After the initial fast charging stage, the fast charging current is dynamically adjusted to a maximum of 1.8A, and the battery power reaches 50% within 20 minutes; then enters the intermediate constant current charging stage, the constant current charging current is dynamically adjusted to a maximum of 1.2A, and the battery power reaches 80% within 15 minutes; finally enters the late constant voltage charging stage, the constant voltage charging voltage is dynamically adjusted to a maximum of 4.2V, and the battery is fully charged within 10 minutes. The entire charging process is completed within 45 minutes, which reduces the charging time by more than 60% compared with traditional charging technology. At the same time, the battery temperature is always kept below 40°C during the charging process, ensuring the safety of charging and the life of the battery.

[0203] Through the above embodiments, it can be seen that the present invention has significant advantages in charging speed, safety and battery life, and has broad application prospects.

[0204] Specific embodiment 2, assuming that a portable ultrasonic device adopts the temperature control method provided by the temperature management module 3 of the present invention during charging and use, and monitors the temperature of the battery, charging port and mainboard in real time through multi-sensor fusion technology when the battery is charging. When the temperature approaches the upper limit of safety, the temperature change prediction model predicts in advance that the temperature will continue to rise, so the fan 23 and the heat pipe 22 are started in advance to dissipate heat. At the same time, the adaptive adjustment unit dynamically adjusts the speed of the fan 23 and the working state of the heat pipe 22 according to the real-time temperature and environmental data to ensure that the temperature always remains within a safe range. During the whole process, the temperature of the ultrasonic device is always kept below 40°C, and the charging speed and safety are significantly improved.

[0205] Through the above examples, it can be seen that the present invention has significant advantages in temperature control efficiency, safety and equipment life, and has broad application prospects.

[0206] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. Efficient and fast charging system for portable ultrasound equipment, It is characterized in that include, A charging control module (1) comprising a plurality of charging control units corresponding to charging stages divided according to the charge amount of the battery, the charging control units being used to adjust the charging mode of the battery in each charging stage respectively; A heat dissipation device (2) is controllably disposed in the ultrasonic device; A temperature management module (3) is connected to the heat dissipation device (2), and the temperature management module (3) comprises: A sensor (31), connected to the ultrasonic device, for acquiring battery data and environmental data of the ultrasonic device; A temperature prediction unit (32), connected to the sensor (31), used to predict future temperature data based on the historical temperature data of the ultrasonic device and the environmental data; The advance control unit (33) is connected to the temperature prediction unit (32) and is used to output a temperature control signal for controlling the heat dissipation device (2) according to the future temperature data.

2. The high-efficiency fast charging system for portable ultrasound equipment according to claim 1, It is characterized in that The charging stage comprises an initial fast charging stage, an intermediate constant current charging stage and a later constant voltage charging stage, and the charging control unit comprises an early charging control unit (11), an intermediate charging control unit (12) and a late charging control unit (13) corresponding to the charging stages.

3. The high efficiency and fast charging system for portable ultrasound equipment according to claim 2, It is characterized in that The early charging control unit (11) charges the battery with a fast charging current. The early charging control unit (11) is connected to the sensor (31) to obtain the battery data and the environmental data, and is used to adjust the fast charging current according to the battery data and the environmental data. The calculation formula is: Among them, I fast represents the fast charging current, k 1 represents the charging coefficient of the initial fast charging stage, C represents the capacity of the battery, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature.

4. The high efficiency and fast charging system for portable ultrasound equipment according to claim 3, It is characterized in that The preliminary charging control unit (11) is also provided with an initial charging stage prediction model based on machine learning, which is used to collect and analyze historical charging data of the preliminary charging control unit (11) through a machine learning method, predict the performance of the fast charging current under different environmental data, and dynamically adjust the calculation formula of the fast charging current according to the prediction result, wherein the historical charging data includes historical fast charging current and historical environmental data.

5. The high efficiency and fast charging system for portable ultrasound equipment according to claim 2, It is characterized in that The mid-term charging control unit (12) charges the battery with a constant current. The mid-term charging control unit (12) is connected to the sensor (31) to obtain the battery data and the environmental data, and is used to adjust the constant current according to the battery data and the environmental data. The calculation formula is: Among them, I constant represents the constant current charging current, k 2 represents the charging coefficient of the mid-term constant current charging stage, C represents the capacity of the battery, V current Indicates the current battery voltage in the battery data, V min Indicates the minimum voltage, V max Indicates the maximum voltage; The mid-term charging control unit (12) also includes a user behavior analysis model for collecting and analyzing the user's charging behavior data, and adjusting the constant current charging current according to the analysis results, wherein the charging behavior data includes the charging frequency, charging time and the environmental data in the intermediate constant current charging stage.

6. The high efficiency and fast charging system for portable ultrasound equipment according to claim 2, It is characterized in that The post-charging control unit (13) charges the battery at a constant charging voltage. The post-charging control unit (13) is connected to the sensor (31) to obtain the battery data and the environmental data, and is used to adjust the constant charging voltage according to the battery data and the environmental data. The calculation formula is: Among them, V constant represents the constant voltage charging voltage, V max Indicates the maximum voltage, k 3 represents the charging coefficient of the later constant voltage charging stage, T current Indicates the current battery temperature in the battery data, T ambient Indicates the ambient temperature in the environmental data, T max Indicates the maximum allowable temperature; The post-charging control unit (13) also includes a charging termination subunit, which is used to detect the battery data and terminate charging according to the detection result.

7. The high efficiency and fast charging system for portable ultrasound equipment according to claim 1, It is characterized in that The heat dissipation device (2) comprises: A graphite heat sink (21) is arranged at a preset position of the battery and the charging circuit in the ultrasonic device; A heat dissipation pipe (22), disposed in the ultrasonic device, and used for combining with the graphite heat sink (21) to transfer heat from the battery and the charging circuit to a device housing of the ultrasonic device; A fan (23) is provided in the ultrasonic device and is used to remove heat from the ultrasonic device through air convection.

8. The high efficiency and fast charging system for portable ultrasound equipment according to claim 1, It is characterized in that The sensor (31) at least comprises: A battery parameter sensor (311), connected to the battery, for obtaining status data of the battery; n temperature sensors (312), arranged in the ultrasonic device, for acquiring temperature data of various areas in the ultrasonic device; wherein n is a positive integer; A humidity sensor (313), disposed in the ultrasonic device, for acquiring humidity data; An ambient light sensor (314), arranged on a device housing of the ultrasound device, for acquiring ambient light data; A pressure sensor (315), arranged on the device housing of the ultrasonic device, for acquiring pressure data; The sensor (31) is also connected to a temperature fusion module for fusing the temperature data to obtain the fused ambient temperature. The calculation formula is: Among them, T fused represents the ambient temperature after fusion, T i represents the temperature reading of the ith temperature sensor (312), w i represents the weight of the i-th temperature sensor (312), where i is a positive integer from 1 to n.

9. The high efficiency and fast charging system for portable ultrasound equipment according to claim 1, It is characterized in that The temperature prediction unit (32) has a temperature change prediction model based on a long short-term memory network, and the prediction calculation formula is: T predicted =LSTM(T history ,E current ) Where T predicted represents the future temperature data, LSTM represents the temperature change prediction model, T history Represents the historical temperature data, E current Indicates the current environmental data; The advance control unit (33) receives the future temperature data and is used to determine whether the future temperature data exceeds a safety range. If so, the advance control unit (33) outputs the temperature control signal for starting the heat dissipation device (2) in advance. If it is not exceeded, the advance control unit (33) outputs the temperature control signal for reducing the power of the heat dissipation device (2) in advance.

10. The high efficiency and fast charging system for portable ultrasound equipment according to claim 1, It is characterized in that The temperature management module (3) further comprises an adaptive adjustment unit, which is used to adaptively adjust the power of the heat dissipation device (2) according to the battery data and the environmental data. The adjustment formula is: Where P adjusted Indicates the adjusted power, P max Indicates the maximum power, T current Indicates the current battery temperature in the battery data, T optimal represents the optimal temperature, T max Indicates the maximum allowable temperature.

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