Charging housekeeper capable of being spliced and unmanned aerial vehicle battery charging housekeeper system capable of being spliced

Abstract

The utility model relates to the technical field of charging housekeeper equipment, in particular to a splicable charging housekeeper and a splicable unmanned aerial vehicle battery charging housekeeper system, which comprise a bypass control circuit, the input end of the bypass control circuit is electrically connected with the power output end of the charging housekeeper, and the output end of the bypass control circuit is electrically connected with the power output end of the charging housekeeper. The output end of the bypass control circuit is electrically connected with a charging output interface used for being connected with a next-stage charging device, and the bypass control circuit is used for receiving the charging power output by the power output end so as to charge the next-stage charging device connected to the charging output interface; the charging housekeeper outputs part of charging power to the next-stage charging equipment connected with the charging housekeeper through the bypass control circuit so as to charge the next-stage charging equipment. Thus, the problem that in the prior art, a charging steward needs personnel to wait beside the charging steward to replace batteries, so that more unmanned aerial vehicle batteries can be charged, and time and labor are consumed is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of charging butler equipment technology, and in particular to a modular charging butler and a modular drone battery charging butler system. Background Technology

[0002] Modern charging systems generally have multiple safety protection functions, such as overload protection, short circuit protection, leakage protection, overvoltage protection, undervoltage protection, and overheat protection. These ensure that in the event of an abnormality during charging, the power supply can be automatically cut off in time to protect the safety of the user and the equipment. With the widespread use of drones, drone batteries also consume power very quickly, requiring the use of a charging system to charge drone batteries.

[0003] Furthermore, modern drones, action cameras, and portable imaging cameras generally use replaceable battery designs, allowing users to purchase multiple batteries to power their digital devices in relays. However, existing charging stations typically only have three charging slots, which becomes insufficient when more drone batteries need charging. To solve this problem, more charging outlets are needed to connect multiple charging stations to charge more drone batteries, or more charging slots need to be added to the charging station itself. However, this would make the charging station too large and long, making it inconvenient to carry.

[0004] If there aren't enough charging outlets or charging spots, the fully charged batteries on the charging station need to be removed promptly to replace the partially charged ones. However, it takes a relatively long time for the charging station to fully charge the drone batteries, and this method requires frequent manual intervention to replace the batteries. This requires personnel to stay by the charging station for extended periods to replace the batteries in a timely manner, which is very time-consuming. Therefore, it is particularly important that the charging station can automatically charge the next level of charging station after fully charging the drone batteries it has plugged in, so as to charge more drone batteries.

[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model proposes a modular charging manager and a modular drone battery charging manager system. The purpose is to solve the problem that after the charging manager has fully charged the drone battery it is connected to, it can automatically charge the next level charging manager to achieve charging of more drone batteries.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0008] A modular charging hub includes a charging management circuit. The charging management circuit comprises a power input interface for connecting to an external power source, a charging output interface for connecting to a next-level charging device, a charging circuit for charging a drone battery plugged into the charging hub, and a charging control circuit for controlling the charging process. This control circuit includes a bypass control circuit. The input terminal of the bypass control circuit is electrically connected to the power output terminal of the charging hub, and the output terminal of the bypass control circuit is electrically connected to the charging output interface for connecting to a next-level charging device. The bypass control circuit receives the charging power output from the power output terminal to charge the next-level charging device connected to the charging output interface.

[0009] Furthermore, it includes a power input negotiation circuit, the input terminal of which is electrically connected to the power input interface, and the output terminal of which is electrically connected to the input terminal of the bypass control circuit. The power input negotiation circuit is used to output at least a portion of the charging power of the external power source to the bypass control circuit.

[0010] Furthermore, the input terminal of the bypass control circuit is electrically connected to the charging control circuit to receive the charging power from the charging control circuit.

[0011] Therefore, the output terminal of the bypass control circuit is electrically connected to the input terminal of the charging output interface. The bypass control circuit receives the charging power output from the charging control circuit and transmits the charging power to the charging output interface.

[0012] Furthermore, it includes a first buck-boost circuit, the input terminal of which is electrically connected to the bypass control circuit, and the output terminal of which is electrically connected to the input terminal of the charging output interface. The first buck-boost circuit receives the charging power output from the bypass control circuit, adjusts the charging power to a voltage signal suitable for charging the next-level charging device, and transmits the voltage signal to the next-level charging device from the charging output interface.

[0013] Furthermore, it includes a power output negotiation circuit, the input terminal of which is electrically connected to the first buck-boost circuit. The power output negotiation circuit receives the voltage signal transmitted by the first buck-boost circuit, negotiates the success rate signal, and transmits the power signal through its output terminal to the input terminal of the charging output interface.

[0014] Furthermore, it includes a second buck-boost circuit, the input terminal of which is connected to the power input interface, and adjusts the input voltage of the external power supply to a voltage signal suitable for charging by the charging manager, and transmits the voltage signal to the charging control circuit through its output terminal.

[0015] Furthermore, it includes a battery communication circuit, the input of which is electrically connected to the drone battery to obtain the battery power information of the drone and transmit the power information to the charging control circuit through its output.

[0016] Furthermore, the charging circuit includes a charging sub-circuit and a switching circuit;

[0017] The input terminal of the charging sub-circuit is electrically connected to the charging control circuit to receive the charging power output by the charging control circuit and transmit the charging power to the input terminal of the switching circuit.

[0018] The output terminal of the switching circuit is electrically connected to the drone battery.

[0019] The switching circuit transmits the received charging power to the drone battery through its output terminal.

[0020] In addition, a modular drone battery charging management system is proposed, comprising at least two modular charging management systems as described above, wherein the charging output interface of the upper-level charging management system is electrically connected to the power input interface of the lower-level charging management system.

[0021] Furthermore, the different charging devices are electrically connected via data cables or plugs.

[0022] The beneficial effects of this utility model are:

[0023] This utility model discloses a modular charging hub and a modular drone battery charging hub system. Using this technical solution, the charging hub, after fully charging the drone battery it is connected to, can automatically charge the next-level charging device connected to it. Specifically, the charging hub includes a bypass control circuit. The input terminal of the bypass control circuit is electrically connected to the power output terminal of the charging hub, and the output terminal is electrically connected to a charging output interface for connecting the next-level charging device. The bypass control circuit receives the charging power output from the power output terminal to charge the next-level charging device connected to the charging output interface. The charging hub outputs a portion of its charging power to the connected next-level charging device through the bypass control circuit, thereby effectively solving the problem of existing charging hubs requiring personnel to be present to replace batteries, which is time-consuming and labor-intensive for charging multiple drone batteries. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal circuit structure of the charging butler according to Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal circuit structure of the charging butler in Embodiment 2 of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal circuit structure of the charging butler in Embodiment 3 of this utility model;

[0027] Figure 4 This is a schematic diagram illustrating the connection method between charging assistants in Implementation Example 1.

[0028] Figure 5 This is a schematic diagram illustrating the connection method between charging assistants in Embodiment 2.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Power input interface, 2-Charging output interface, 3-Charging circuit, 31-Charging sub-circuit, 32-Switch circuit, 4-Charging control circuit, 5-Bypass control circuit, 6-Power input negotiation circuit, 7-First buck-boost circuit, 8-Power output negotiation circuit, 9-Second buck-boost circuit, 10-Battery communication circuit, 100-USB interface, 101-Data cable, 200-Four-pin interface, 201-Four-contact interface, A-Battery. Detailed Implementation

[0031] The following will be combined with the appendix Figure 1 To be continued Figure 5 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0032] Modern drones, action cameras, and portable imaging cameras generally use replaceable battery designs, allowing users to purchase multiple batteries to power their devices. However, existing charging stations typically only have three charging slots. When more drone batteries need charging, these slots become insufficient. To solve this problem, more charging outlets are needed to connect multiple charging stations to charge more drone batteries, or more charging slots need to be added to the charging station itself. However, this would make the charging station too large and long, inconvenient to carry. Furthermore, to enable the charging station to charge more drone batteries, a person needs to be present to promptly replace fully charged drone batteries with those needing charging, which is time-consuming and labor-intensive.

[0033] Therefore, the inventors provide a modular charging manager and a modular drone battery charging manager system, which aims to solve the problem that after the charging manager fully charges the drone battery it is connected to, it can automatically charge the next level charging manager to charge a larger number of drone batteries.

[0034] In detail, this technical solution provides a modular charging hub, which has a housing containing a charging management circuit, such as... Figure 1 As shown, the charging management circuit includes a charging control circuit 4, which is electrically connected to a power input interface 1, a charging output interface 2, a charging circuit 3, and a bypass control circuit 5.

[0035] The charging control circuit 4 is used to control the charging process. In this embodiment, the charging control circuit 4 consists of a control IC and several circuits extending from the control IC to the periphery. The several circuits are connected to various functional circuits, such as the charging circuit 3, so as to realize the charging control circuit 4 to control the charging of the charging circuit 3.

[0036] The input terminal of the charging circuit 3 is connected to the charging control circuit 4, and the output terminal of the charging circuit 3 is connected to the drone battery. In use, the charging circuit 3 converts the charging power received from the charging control circuit 4 into a charging current, and transmits this charging current to the drone battery through its output terminal, thereby enabling the charging manager to charge the drone battery.

[0037] The power input interface 1 is used to connect to an external power source, specifically a TYPE-C interface, USB interface, etc., provided on the surface of the charging device's casing. The power input interface 1 includes a data signal receiver for receiving charging protocol information supported by the external power source, and a power receiver for receiving power information from the external power source, such as a wall-mounted charging socket or charging strip. In use, by plugging the power input interface 1 into the charging socket or charging strip, power can be obtained from the charging socket or charging strip to maintain the charging device's operation.

[0038] The charging output interface 2 includes a TYPE-C interface, a USB interface, etc., located on the surface of the charging device's housing. The charging output interface 2 includes a signal receiver and a power receiver. The signal receiver is used for handshaking with the next-level charging device using a charging protocol, and the power receiver is used to transfer power from the charging device to the next-level charging device. The next-level charging device should have a charging input interface that matches the charging output interface 2. In use, the next-level charging device is plugged into the charging output interface 2 to establish an electrical connection between the charging device and the next-level charging device. It should be noted that the next-level charging device includes the next-level charging device, a mobile phone, etc.

[0039] The bypass control circuit 5 has its input terminal electrically connected to the power output terminal of the charging hub, and its output terminal electrically connected to the charging output interface 2 for connecting to the next-level charging device. The bypass control circuit 5 is used to receive the charging power output by the power output terminal to charge the next-level charging device connected to the charging output interface 2.

[0040] In use, the bypass control circuit 5 receives charging information from the charging output interface 2 regarding the charging needs of the next-level charging device. For example, it checks the voltage level requested by the connected next-level charging device and adjusts the maximum output power based on this voltage and the charging power output of the charging hub itself. This ensures that the next-level charging device connected to the charging hub receives the maximum charging power. It should be noted that the charging power includes both voltage and current signals; that is, the bypass control circuit 5 converts the charging power into voltage and current signals and sends them to the charging output interface 2 to charge the next-level charging device.

[0041] When in use, for example, if the charging hub has three charging positions and drone batteries are plugged into all three positions, the charging hub will first charge the plugged-in drone batteries. For example, if the charging hub's charging power is 100W, charging the three drone batteries will require a total of 60W. The remaining 40W can then be transmitted to the next level charging device (such as a mobile phone, the charging hub, etc.) through the bypass control circuit 5.

[0042] It should be understood that the bypass control circuit 5 is a branch extending from the charging management circuit of the charging manager body, with the purpose of transferring excess charging power from the charging manager to the next-level charging device. In other application scenarios, the bypass control circuit 5 includes a chip and several circuits, but it is not limited to the form of a chip or circuits, as long as it has the ability to convert excess functions of the charging manager into charging power that can be used by the next-level charging device.

[0043] In other use cases, the bypass control circuit 5 is multiple, meaning that multiple bypass control circuits 5 extend from the charging management circuit of the charging hub, and each bypass control circuit 5 has a charging output interface 2 used in conjunction with it. This should (e.g., in a charging hub) enable one charging hub to provide power to multiple other charging hubs after fully charging its own drone battery.

[0044] In other application scenarios, multiple branches can be extended from the output of the bypass control circuit 5, and each branch is connected to a corresponding number of charging output interfaces 2. This design can also transfer excess charging power from the charging manager body to the next level of charging manager.

[0045] like Figure 1 As shown, in one embodiment of this utility model, the input terminal of the bypass control circuit 5 is electrically connected to the charging control circuit 4 to receive the charging power from the charging control circuit 4; therefore, the output terminal of the bypass control circuit 5 is electrically connected to the input terminal of the charging output interface 2. The bypass control circuit 5 receives the charging power output from the charging control circuit 4 and transmits the charging power to the charging output interface 2; the bypass control circuit 5 converts the received charging power into charging power suitable for use by the next level charging manager, thereby providing power to the next level charging manager.

[0046] In actual use, the charging control circuit 4 will treat the bypass control circuit 5 as another drone battery. Only after the charging assistant has fully charged the drone battery it is connected to will the charging control circuit 4 output the charging power of the charging assistant to the bypass control circuit 5, so that the bypass control circuit 5 can provide power to the next level of the charging assistant.

[0047] In another embodiment of this utility model, such as Figure 2 As shown, it includes a power input negotiation circuit 6, the input terminal of which is electrically connected to the power input interface 1, and the output terminal of which is electrically connected to the input terminal of the bypass control circuit 5. The power input negotiation circuit 6 is used to output at least a portion of the charging power of the external power source to the bypass control circuit 5.

[0048] It should be understood that in this embodiment, the bypass control circuit 5 is directly electrically connected to the power input negotiation circuit 6. This facilitates the bypass control circuit 5 to directly obtain the input charging power of the external power source from the power input negotiation circuit 6. Compared with the method of connecting the bypass control circuit 5 from other circuits of the charging hub, this method can reduce the travel distance of the bypass control circuit 5 to obtain charging power and reduce the functional loss of charging power transmission in the circuit.

[0049] In other embodiments of this utility model, the bypass control circuit 5 is not limited to being connected from the charging control circuit 4 and the power input negotiation circuit 6, but can be connected from the power output terminal of the charging manager. This design facilitates the bypass control circuit 5 to obtain charging power so as to realize the charging of the next level of the charging manager.

[0050] In one embodiment of this utility model, it is also as follows: Figure 1 As shown, the charging management circuit includes a first buck-boost circuit 7. The input terminal of the first buck-boost circuit 7 is electrically connected to the bypass control circuit 5, and the output terminal of the first buck-boost circuit 7 is electrically connected to the input terminal of the charging output interface 2. The first buck-boost circuit 7 receives the charging power output from the bypass control circuit 5, adjusts the charging power to a voltage signal suitable for charging the next level charging device, and transmits the voltage signal to the next level charging device from the charging output interface 2.

[0051] In this embodiment, the first step-up / step-down circuit 7 is used to adjust the voltage in the circuit. When the bypass control circuit 5 obtains the charging information required by the externally connected next-level charging device from the charging output interface 2, the bypass control circuit 5 combines the charging power provided by its own charging manager to output a charging power suitable for the next-level charging device. However, in order to ensure that the charging voltage transmitted to the next-level charging device is the most suitable, the first step-up / step-down circuit 7 converts the voltage signal separated from the charging power output by the bypass control circuit 5 into a voltage signal suitable for the next-level charging device.

[0052] In use, the bypass control circuit 5 transmits information about the charging voltage it supports, such as 20V, 2V, and 9V, through the charging output interface 2. The charging output interface 2 of the next-level charging device is plugged into the charging output interface 2 to achieve electrical connection and information exchange. The next-level charging device transmits the maximum charging information it can support through the charging output interface 2, such as 9V. After receiving the 9V charging voltage information, the first buck-boost circuit 7 adjusts the charging information output by the bypass control circuit 5 to the 9V charging voltage information and transmits the 9V charging voltage information to the next-level charging device through the charging output interface 2.

[0053] In one embodiment of this utility model, it is also as follows: Figure 1 As shown, it includes a power output negotiation circuit 8. The input terminal of the power output negotiation circuit 8 is electrically connected to the first buck-boost circuit 7. The power output negotiation circuit 8 receives the voltage signal transmitted by the first buck-boost circuit 7, negotiates the success rate signal, and transmits the power signal through its output terminal to the input terminal of the charging output interface 2.

[0054] According to the power calculation formula: P = UI, during use, since the bypass control circuit 5 outputs not only voltage information but also current information, in order to improve the charging matching degree between the charging manager and the next-level charging manager, the power output negotiation circuit 8 is connected to the output terminal of the first buck-boost circuit 7. The power negotiation circuit 8 obtains the charging current signal required by the next-level charging device through the charging output interface 2, such as 5A. Then, the power negotiation circuit 8 adjusts the charging current signal supported by its current charging manager to 5A according to the obtained charging current signal information of the next-level charging device and transmits it to the next-level charging device for charging through the charging output interface 2.

[0055] In summary, the charging management circuit includes a first buck-boost circuit 7 and a power output negotiation circuit 8 to adjust the charging power output from the bypass control circuit 5 into voltage and current information suitable for charging the next-level charging device.

[0056] In other embodiments, the charging manager may not require the first buck-boost module 7 or the power output negotiation module 8 mentioned above. The charging manager can adjust the voltage and current signals through its own charging control circuit 4, thereby enabling it to charge the next level of charging equipment.

[0057] In one embodiment of this utility model, it is also as follows: Figure 1 As shown, the charging management circuit includes a second buck-boost circuit 9. The input terminal of the second buck-boost circuit 9 is connected to the power input interface 1, and adjusts the input voltage of the external power supply to a voltage signal suitable for charging by the charging manager, and transmits the voltage signal to the charging control circuit 4 through its output terminal.

[0058] When in use, for example, if the external power supply transmits a charging voltage of 220V to the charging device through the power input interface 1, the second step-up / step-down circuit 9 will adjust it to a voltage signal suitable for the charging device, such as 20V, to avoid the external power supply voltage being too high and causing the charging device to malfunction.

[0059] After receiving the voltage signal adjusted by the second buck-boost circuit 9, the charging control circuit 5 processes it into charging information suitable for charging the drone battery, so as to enable the charging manager to charge the drone battery.

[0060] In addition, there are also Figure 3 As shown, the bypass control circuit 5 obtains charging power directly from the power input negotiation circuit 6. Therefore, in use, the amount of charging power that the bypass control circuit 5 can obtain depends on the negotiation result between the second buck-boost circuit 9 (described below), the power negotiation circuit 6, and the external power supply. For example, if the external power supply provides 100W, then the power negotiation circuit 6 and the second buck-boost circuit 9 determine the total charging power required by the connected drone battery and the charging power required by the next-level charging device based on feedback from the bypass control circuit 5, according to the charging control circuit 4 they are connected to. The second buck-boost circuit then outputs its appropriate charging voltage to the charging control circuit 4 and the bypass control circuit 5.

[0061] In order for the charging manager to provide appropriate charging power to the drone battery based on the actual charge level of the connected drone battery, the charging management circuit includes a battery communication circuit 10. The input terminal of the battery communication circuit 10 is electrically connected to the drone battery to obtain the charge level information of the drone battery and transmit the charge level information to the charging control circuit 4 through its output terminal.

[0062] When multiple drone batteries are connected to the charging hub, the battery communication circuit 10 can obtain the power information of each drone battery (e.g., 20%, 50%, and 80% power respectively) and feed it back to the charging control circuit 4. The charging control circuit 4 charges each drone battery according to the received power information of each drone battery and according to a preset charging order (e.g., charging from the battery with high power to the battery with low power or from the battery with low power to the battery with high power).

[0063] To better manage the charging of each drone battery when multiple drone batteries are connected to the charging manager, the charging management circuit also includes a charging circuit 3. The charging circuit includes a charging sub-circuit 31 and a switching circuit 32. The input terminal of the charging sub-circuit 31 is electrically connected to the charging control circuit 4 to receive the charging power output by the charging control circuit 4 and transmit the charging power to the input terminal of the switching circuit 32. The output terminal of the switching circuit 32 is electrically connected to the drone battery. The switching circuit 32 transmits the received charging power to the drone battery through its output terminal.

[0064] In use, for example, if batteries A, B, and C need to be charged, they are ordered from lowest to highest charge level: A < B < C. Each battery's input terminal is connected to the charging sub-circuit 31 and the switching circuit 32. Each battery's charging sub-circuit 31 is electrically connected to the charging control circuit 4. After the charging control circuit 4 obtains the remaining charge information of each battery through the battery communication circuit 10, it opens the switching circuit 32 corresponding to battery A according to the preset charging order. This allows the charging power of the charging control circuit 4 to be transmitted sequentially to battery A through the charging sub-circuit 31 and the switching circuit 32, thus enabling the charging manager to charge battery A. This charging manager can charge batteries A, B, and C simultaneously, or it can charge the next battery after fully charging each one.

[0065] In one embodiment of this utility model, a modular drone battery charging management system is provided, such as... Figure 4 As shown, the system includes at least two of the aforementioned connectable charging hubs, with the charging output interface 2 of the higher-level charging hub electrically connected to the power input interface 1 of the lower-level hub. Different charging hubs are electrically connected via data cables or plugs.

[0066] In use, each charging hub has a connector that matches and connects to another charging hub. The connector is located on the outer surface of the charging hub's housing, and the inside of the connector is electrically connected to the charging management circuit.

[0067] In some use cases, such as Figure 4 The interface shown is a USB interface 100. This USB interface can be connected to a data cable 101. The data cable can be connected to the USB interface 100 of another charging device, thereby enabling one charging device to provide circuitry for the other charging device.

[0068] In other use cases, such as Figure 5 As shown, the connector is, for example, an interface 200 with four pins, two of which are for data transmission and the other two are for power transmission. Another charging device adapted to this connector has a four-contact interface 201. When the two charging devices are connected, the four pins make contact with the four contacts to test the electrical connection between the two charging devices.

[0069] In summary, this technical solution provides a cascadeable charging hub and charging system. The charging hub, through the bypass control circuit 5, outputs a portion of its charging power to the connected next-level charging device, thereby charging the next-level device. This effectively solves the problem in existing technologies where charging hubs require personnel to be present to replace batteries, which is time-consuming and labor-intensive to charge multiple drone batteries. Furthermore, the charging hub using this technical solution can cascade multiple next-level charging devices as needed, allowing one charging hub to provide power to multiple charging hubs while charging its own connected drone batteries.

[0070] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A modular charging hub, comprising a charging management circuit, the charging management circuit including a power input interface for connecting to an external power source, a charging output interface for connecting to a next-level charging device, a charging circuit for charging a drone battery plugged into the charging hub, and a charging control circuit for controlling the charging process, characterized in that: It includes a bypass control circuit, the input of which is electrically connected to the power output of the charging device, and the output of which is electrically connected to a charging output interface for connecting to the next-level charging device. The bypass control circuit is used to receive the charging power output by the power output to charge the next-level charging device connected to the charging output interface.

2. The modular charging hub as described in claim 1, characterized in that: The system includes a power input negotiation circuit, the input terminal of which is electrically connected to the power input interface, and the output terminal of which is electrically connected to the input terminal of the bypass control circuit. The power input negotiation circuit is used to output at least a portion of the charging power of the external power source to the bypass control circuit.

3. The modular charging hub as described in claim 1, characterized in that: The input terminal of the bypass control circuit is electrically connected to the charging control circuit to receive the charging power from the charging control circuit. Therefore, the output terminal of the bypass control circuit is electrically connected to the input terminal of the charging output interface. The bypass control circuit receives the charging power output from the charging control circuit and transmits the charging power to the charging output interface.

4. A modular charging hub as described in claim 1, characterized in that: The device includes a first buck-boost circuit, the input of which is electrically connected to the bypass control circuit, and the output of which is electrically connected to the input of the charging output interface. The first buck-boost circuit receives the charging power output from the bypass control circuit, adjusts the charging power to a voltage signal suitable for charging the next-level charging device, and transmits the voltage signal to the next-level charging device from the charging output interface.

5. A modular charging hub as described in claim 4, characterized in that: It includes a power output negotiation circuit, the input terminal of which is electrically connected to the first buck-boost circuit. The power output negotiation circuit receives the voltage signal transmitted by the first buck-boost circuit and negotiates the success rate signal, and transmits the power signal through its output terminal to the input terminal of the charging output interface.

6. A modular charging hub as described in claim 1, characterized in that: It includes a second buck-boost circuit, the input of which is connected to the power input interface, and adjusts the input voltage of the external power supply to a voltage signal suitable for charging by the charging manager, and transmits the voltage signal to the charging control circuit through its output.

7. A modular charging hub as described in claim 1, characterized in that: It includes a battery communication circuit, the input of which is electrically connected to the drone battery to obtain the battery power information of the drone and transmit the power information to the charging control circuit through its output.

8. A modular charging hub as described in claim 1, characterized in that: The charging circuit includes a charging sub-circuit and a switching circuit; The input terminal of the charging sub-circuit is electrically connected to the charging control circuit to receive the charging power output by the charging control circuit and transmit the charging power to the input terminal of the switching circuit. The output terminal of the switching circuit is electrically connected to the drone battery. The switching circuit transmits the received charging power to the drone battery through its output terminal.

9. A modular drone battery charging management system, characterized in that: It includes at least two connectable charging managers as described in any one of claims 1-8, wherein the charging output interface of the higher-level charging manager is electrically connected to the power input interface of the lower-level manager.

10. A modular drone battery charging management system as described in claim 9, characterized in that... : Different charging devices achieve electrical connection via data cable or plug.

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