Remote charger for unmanned aerial vehicle

Abstract

The invention discloses an unmanned aerial vehicle remote charger, which comprises a charger framework, the charger framework is composed of a power supply input module, an MCU module, a battery adaptation module, a heat dissipation protection module and a communication monitoring module, the power supply input module is provided with a wide voltage input unit, receives a direct current input voltage range of 8-30V and converts the direct current input voltage range into a stable intermediate voltage; overvoltage and undervoltage protection functions are realized; the power supply mode detection and switching unit can automatically detect a power supply source, adapt to voltage fluctuation and smoothly adjust working parameters of the charger; the charging state monitoring and feedback unit, the battery interface identification unit and the battery parameter matching unit work cooperatively, so that the unmanned aerial vehicle automatic airport is compatible with multiple types of unmanned aerial vehicles, and the universality and flexibility of unmanned aerial vehicle operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle charging, and in particular to the improvement of battery chargers for various types of unmanned aerial vehicles in different power supply scenarios. Background Art

[0002] The current application of drone automatic airports is limited by the matching specificity of models and drones, which is quite different from the concept of general airports. In actual operation, most airports can only adapt to specific models of drones. This is mainly due to the differences in battery parameters of different drones, such as voltage, capacity, number of cells (S number), etc., which makes it difficult to use a unified charger to meet multiple needs. Moreover, with the emergence of drone charging scenarios at drone automatic airports, power supply stability and adaptability face new challenges. Traditional chargers cannot work stably in the fluctuating drone charging power environment, and it is difficult to automatically adjust charging parameters to adapt to different battery types, which limits the flexible use and efficient operation of drones in various scenarios. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the present invention provides a remote charger for drones, which can adapt to chargers for drone batteries with different parameters, so as to achieve compatibility of drone automatic airports with multiple models of drones, enhance the versatility and flexibility of drone operations, and thus solve the problem of difficulty in automatically adjusting charging parameters to adapt to different battery types, which limits the flexible use and efficient operation of drones in various scenarios.

[0005] (II) Technical solution

[0006] The specific technical solution adopted by the present invention is as follows: it includes a charger framework, which is composed of a power input module, an MCU module, a battery adapter module, a heat dissipation protection module, and a communication monitoring module. Each module works together to ensure that the charger can efficiently and safely charge a variety of batteries in different scenarios.

[0007] Power Entry Module

[0008] Wide voltage input unit: Using advanced DC-DC conversion technology, it can accept a DC input voltage range of 8-30V. Through the built-in voltage regulation circuit, the input voltage is converted into a stable intermediate voltage to provide an adaptive power supply for the subsequent charging circuit. The unit has overvoltage and undervoltage protection functions. When the input voltage exceeds the set threshold, it automatically cuts off the circuit to protect the internal components of the charger. When the input voltage is lower than 8V or higher than 30V, the protection circuit responds quickly to avoid damage to the equipment due to abnormal voltage.

[0009] Power supply mode detection and switching unit: It can automatically detect the current power supply source. When it detects the power supply mode switching or voltage fluctuation, the unit can smoothly adjust the working parameters of the charger to ensure that the charging process is not affected. When the voltage drops sharply when the drone is started, this unit can maintain the power supply of the key circuits inside the charger for a short time, and adjust to the normal charging mode after the voltage returns to stability.

[0010] MCU Module

[0011] Intelligent charging algorithm unit: It has multiple built-in charging curve algorithms, and can automatically select the optimal charging strategy for different 2-6S battery types. For 2S batteries, relatively low charging current and voltage thresholds are used, while for 6S batteries, corresponding high current and high voltage charging parameters are set according to their higher voltage and capacity requirements. During the charging process, the charging current and voltage are dynamically adjusted according to the real-time temperature, voltage and current feedback of the battery to improve charging efficiency and extend battery life. If the battery temperature is detected to be too high, the algorithm will automatically reduce the charging current to prevent overheating and damage to the battery.

[0012] Charging status monitoring and feedback unit: The charging status of the battery is monitored in real time through high-precision current sensors, voltage sensors and temperature sensors. The voltage monitoring accuracy can reach ±0.01V, the current monitoring accuracy can reach ±0.05A, and the temperature monitoring accuracy can reach ±0.5℃. These monitoring data are fed back to the charger's control chip so that the charging parameters can be adjusted in time or an alarm can be issued in abnormal situations. If the charging current suddenly increases and exceeds the normal range, the unit will immediately send a signal to the control chip, and the control chip will take corresponding measures, such as suspending charging or reducing the charging power.

[0013] Battery parameter matching unit: stores standard parameters of batteries of different models and S numbers, such as rated voltage, capacity, charging limit voltage, etc. When the battery is connected, the corresponding parameters are retrieved from the storage unit according to the battery information identified by the battery adapter module, and transmitted to the MCU module to ensure that the charging parameters are accurately matched with the battery. For a 4S battery, the unit can accurately provide parameter information such as its rated voltage of 14.8V, so that the MCU module can perform charging operations according to this parameter.

[0014] Heat dissipation protection module

[0015] High-efficiency heat dissipation unit: A heat dissipation method combining aluminum alloy heat dissipation fins and intelligent fans is used. The aluminum alloy heat dissipation fins have a large heat dissipation area and can quickly conduct away the heat generated during charging. The intelligent fan automatically adjusts the speed according to the internal temperature of the charger. When the temperature rises, the fan speed increases to enhance the heat dissipation effect. In high temperature environments or high-power charging, the fan speed can be increased from 1000rpm to 3000rpm to ensure that the internal temperature of the charger is always within a safe range.

[0016] Protective shell unit: The charger shell is made of high-strength material that is fireproof, waterproof, and dustproof, and the protection level reaches IP65. There are heat dissipation holes on the surface of the shell, which cooperate with the internal heat dissipation fins and fans to optimize the heat dissipation channel. In the complex environment of drone charging, it effectively prevents external factors from damaging the charger and ensures the safety and stability of the charging process.

[0017] Communication monitoring module

[0018] Communication interface unit: It has multiple communication interfaces, such as USB, RS485, etc., which can realize data communication with the control system of the UAV automatic airport or other external devices. Through these interfaces, data such as charging status and battery information can be transmitted to external devices, and control instructions of external devices can also be received, such as remote start or stop charging. The control system of the UAV automatic airport can send charging task instructions to the charger through the RS485 interface, and the charger performs the corresponding charging operation according to the instructions.

[0019] Monitoring and alarm unit: monitors the working status of the charger in real time, including power input status, charging status, temperature status, etc. When an abnormal situation occurs, such as power input overvoltage, charging current too large, or temperature too high, the operator is reminded through sound and light alarms. At the same time, the abnormal information is transmitted to external devices through the communication interface so that corresponding measures can be taken in time. When the internal temperature of the charger exceeds 70°C, the monitoring and alarm unit activates the sound and light alarm, and transmits the temperature abnormality information to the control system of the drone automatic airport through the USB interface.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides a remote charger for drones, which has the following beneficial effects:

[0022] It can adapt to chargers for drone batteries with different parameters to achieve compatibility of drone automatic airports with multiple models of drones, enhance the versatility and flexibility of drone operations, and thus solve the problem of difficulty in automatically adjusting charging parameters to adapt to different battery types, limiting the flexible use and efficient operation of drones in various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1It is a schematic diagram of the structure of the present invention; DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the present invention, a remote charger for a drone is provided.

[0027] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1 As shown, the remote charger for unmanned aerial vehicles according to an embodiment of the present invention includes a charger frame, wherein the charger component unit is composed of a power input module, an MCU module, a battery adapter module, a heat dissipation protection module and a communication monitoring module;

[0028] The power input module is equipped with a wide voltage input unit, which accepts 8-30V DC input voltage range and converts it into a stable intermediate voltage, and has overvoltage and undervoltage protection functions; the power supply mode detection and switching unit can automatically detect the power supply source and adapt to voltage fluctuations, and smoothly adjust the charger working parameters;

[0029] The MCU module includes an intelligent charging algorithm unit with built-in multiple charging curve algorithms, which automatically selects the optimal charging strategy for 2-6S batteries and dynamically adjusts charging parameters;

[0030] The charging status monitoring and feedback unit monitors the battery charging status in real time and feeds back data through high-precision sensors, with a monitoring accuracy of voltage ±0.01V, current ±0.05A, and temperature ±0.5℃;

[0031] Battery adapter module, battery interface identification unit, equipped with a variety of battery interfaces and automatically detects the interface type through intelligent identification circuit;

[0032] Battery parameter matching unit, which stores standard parameters of batteries of different models and S numbers and retrieves corresponding parameters according to identification information;

[0033] The heat dissipation protection module includes a high-efficiency heat dissipation unit, which uses a combination of aluminum alloy heat dissipation fins and an intelligent fan to automatically adjust the fan speed according to the temperature;

[0034] The protective shell unit is made of fireproof, waterproof and dustproof high-strength materials, with a protection level of IP65, and the shell is equipped with heat dissipation holes;

[0035] The communication monitoring module includes a communication interface unit to realize data communication with external devices; and a monitoring and alarm unit to monitor the working status of the charger in real time, and to sound and light alarms when abnormalities occur and transmit information to external devices.

[0036] The wide voltage input unit adopts DC-DC conversion technology to perform voltage conversion, and automatically cuts off the circuit when the input voltage is lower than 8V or higher than 30V.

[0037] The intelligent charging algorithm unit adjusts the charging current and voltage according to the battery temperature, voltage and current feedback during the charging process.

[0038] The battery interface identification unit can identify common battery interface types such as XT60, T plug, and banana plug.

[0039] The high-efficiency heat dissipation unit can control the internal temperature of the charger below 60°C, and the intelligent fan speed can be adjusted within the range of 1000-3000rpm.

[0040] The monitoring and alarm unit activates an audible and visual alarm and transmits abnormal information when the internal temperature of the charger exceeds 70°C.

[0041] The intelligent charging algorithm unit includes: constant current charging stage, constant voltage charging stage, dynamic adjustment of charging current and charging cut-off judgment;

[0042] Constant current charging stage:

[0043] Charging current setting: Icharge = Crated × kcc, where Crated is the rated capacity of the battery (unit: Ah), and kcc is the constant current coefficient (generally between 0.1-1, determined by factors such as battery type and initial state).

[0044] Constant voltage charging stage:

[0045] Charging voltage setting: Veharge = Vrated × (1 + α), where Vrated is the rated voltage of the battery (for 3S batteries, the rated voltage may be around 12.6V), and α is a fine-tuning coefficient (usually between 0.01-0.1, used to compensate for factors such as battery internal resistance).

[0046] Charge current dynamically adjusted based on temperature:

[0047] When the battery temperature T is higher than the set safety upper limit temperature Tmaz, Ineu=Icurrent×(1-β×(T-Tmaz)), where Icurrent is the current charging current and β is the temperature adjustment coefficient (determined according to the battery characteristics).

[0048] Charging cut-off judgment:

[0050] When the charging current Icharge drops below the set cut-off current threshold Iend (0.05Cratea) and the duration reaches tend (for example, 10-30 minutes), charging is determined to be complete.

[0051] In the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected, or electrically connected; may be directly connected, or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote charger for drones, including a charger frame, characterized in that: The charger component unit is composed of a power input module, an MCU module, a battery adapter module, a heat dissipation protection module and a communication monitoring module; The power input module is equipped with a wide voltage input unit, which accepts 8-30V DC input voltage range and converts it into a stable intermediate voltage, and has overvoltage and undervoltage protection functions; the power supply mode detection and switching unit can automatically detect the power supply source and adapt to voltage fluctuations, and smoothly adjust the charger working parameters; The MCU module includes an intelligent charging algorithm unit with built-in multiple charging curve algorithms, which automatically selects the optimal charging strategy for 2-6S batteries and dynamically adjusts charging parameters; The charging status monitoring and feedback unit monitors the battery charging status in real time and feeds back data through high-precision sensors, with a monitoring accuracy of voltage ±0.01V, current ±0.05A, and temperature ±0.5℃; Battery adapter module, battery interface identification unit, equipped with a variety of battery interfaces and automatically detects the interface type through intelligent identification circuit; Battery parameter matching unit, which stores standard parameters of batteries of different models and S numbers and retrieves corresponding parameters according to identification information; The heat dissipation protection module includes a high-efficiency heat dissipation unit, which uses a combination of aluminum alloy heat dissipation fins and an intelligent fan to automatically adjust the fan speed according to the temperature; The protective shell unit is made of fireproof, waterproof and dustproof high-strength materials, with a protection level of IP65, and the shell is equipped with heat dissipation holes; The communication monitoring module includes a communication interface unit for data communication with external equipment; As well as a monitoring and alarm unit, it monitors the working status of the charger in real time, and when abnormalities occur, it will sound and light alarms and transmit information to external devices.

2. The remote charger for unmanned aerial vehicles according to claim 1, characterized in that: The wide voltage input unit adopts DC-DC conversion technology to perform voltage conversion, and automatically cuts off the circuit when the input voltage is lower than 8V or higher than 30V.

3. The remote charger for unmanned aerial vehicles according to claim 1, characterized in that: The intelligent charging algorithm unit adjusts the charging current and voltage according to the battery temperature, voltage and current feedback during the charging process.

4. The remote charger for unmanned aerial vehicles according to claim 1, characterized in that: The battery interface identification unit can identify common battery interface types such as XT60, T plug, and banana plug.

5. The remote charger for unmanned aerial vehicle according to claim 1, characterized in that: The efficient heat dissipation unit can control the internal temperature of the charger below 60°C, and the intelligent fan speed can be adjusted within the range of 1000-3000rpm.

6. The drone remote charger according to claim 1, characterized in that: The monitoring and alarm unit activates an audible and visual alarm and transmits abnormal information when the internal temperature of the charger exceeds 70°C.

7. The remote charger for unmanned aerial vehicles according to claim 1, characterized in that: The intelligent charging algorithm unit includes a constant current charging stage, a constant voltage charging stage, a dynamic adjustment of the charging current and a charging cut-off judgment.

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