A portable rechargeable unmanned aerial vehicle take-off and landing platform

Abstract

The application relates to a portable and chargeable unmanned aerial vehicle taking-off and landing platform, and relates to the technical field of unmanned aerial vehicle taking-off and landing. The platform comprises a plurality of apron supporting legs and an aluminum alloy frame. A solar power generation mechanism is arranged in the aluminum alloy frame. A solar cell is fixedly connected to the top of the taking-off and landing platform. A plurality of LED landing indicator lamps are fixedly connected to the top of the taking-off and landing platform. An approach and departure control structure is fixedly connected to the bottom of the taking-off and landing platform. A Beidou positioning structure is fixedly connected to the bottom of the taking-off and landing platform. The application has the effects that the solar cell is connected to the lithium battery through the busbar, energy control is realized by cooperating with a system switch and the like, outdoor emergency applicability is improved, solar power is continuously generated and stored, the output integrated interface and the LED indicator lamp are used for real-time monitoring of unmanned aerial vehicle energy consumption and efficient energy compensation, and the portable emergency flight energy of the unmanned aerial vehicle is provided.

Description

Technical Field

[0001] This utility model relates to the field of drone take-off and landing, and in particular to a portable, rechargeable drone take-off and landing platform. Background Technology

[0002] With the booming development of the low-altitude economy, the application scenarios of drones are becoming increasingly diverse. In emergency rescue, personnel search, forest patrol, unmanned cargo transportation and other work, it is often necessary to carry out flight missions in complex terrain areas such as the wild, mountains, and waters. Drone take-off and landing platforms are special sites and facilities that provide drones with take-off, landing, parking, maintenance and related operational support.

[0003] A search revealed Chinese patent publication number CN218703969U, which discloses a drone take-off and landing platform, including a base. Two sliding blocks are slidably connected to the upper side of the base, and the two sliding blocks are parallel to each other. Each sliding block has a guide groove on its upper side, and the cross-sectional shape of the guide groove is an inverted trapezoid. The extension direction of the guide groove is perpendicular to the sliding direction of the sliding block. This invention can accurately land drones with four-legged landing gear and drones with dual-staff landing gear; moreover, it is adjustable, thus meeting the accurate landing requirements of drones with landing gears of different sizes and specifications, and has a wide range of applications.

[0004] The aforementioned patent specification mentions that "when the drone lands, the two rods of the dual-rod landing gear drone can each correspond to two guide slots 3. The inverted trapezoidal guide slots 3 have inclined surfaces on both sides, which allows the bottom rod of the dual-rod landing gear to fall to the bottom of the guide slot 3, achieving accurate landing. For the four-leg landing gear drone, each pair of legs corresponds to one guide slot 3 for accurate landing, thus accommodating both types of drones. For landing gears of different sizes, i.e., drones with different leg spacing or different rod spacing, the distance between the two slide blocks 2 can be adjusted to correspond to the drone landing gear. During adjustment, the reduction motor 10 is activated, driving the rotation of the lead screw 8. The two parts of the lead screw 8 have external threads with opposite directions of rotation, which can drive the two second sliders 9 to move in opposite directions simultaneously." This causes the two second sliders 9 to move away from or closer together, and the slide block 2 moves synchronously with the second slider 9 connected to it, thereby achieving the distance between the two slide blocks 2. The drone take-off and landing platform of this embodiment is suitable for vehicle mounting. During transportation, the elastic rope 12 is pressed against the upper side of the drone or wrapped around the drone body, and then the elastic rope 12 is tightened. The hook 13 is then hung outside the guardrail 11 to limit the drone and maintain its stability during transportation. The above content can limit the drone and maintain its stability, but it cannot provide portable emergency power for the drone, reducing its applicability for outdoor emergencies. Therefore, a portable rechargeable drone take-off and landing platform is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a portable, rechargeable drone take-off and landing platform, which aims to improve the problem that some drone take-off and landing platforms cannot provide portable emergency power.

[0006] This application provides a portable rechargeable drone take-off and landing platform with the following technical solution: A portable rechargeable drone take-off and landing platform includes multiple landing pad legs and an aluminum alloy frame. Adjustment bolts are threaded to the top of the multiple landing pad legs. A solar power generation mechanism is installed inside the aluminum alloy frame, and a positioning protection mechanism is installed outside the aluminum alloy frame. The solar power generation mechanism includes a take-off and landing platform a, which is externally fixedly connected to the inside of the aluminum alloy frame. A solar cell is fixedly connected to the top of the take-off and landing platform a, and multiple LED landing indicator lights are fixedly connected to the top of the take-off and landing platform a. A rechargeable battery assembly is fixedly connected inside the landing pad legs. Output components are fixedly connected to both sides of the aluminum alloy frame. An approach and departure control structure is fixedly connected to the bottom of the take-off and landing platform a, and a Beidou positioning structure is fixedly connected to the bottom of the take-off and landing platform a.

[0007] The above technical solution features: adjustable feet to adapt to terrain; robust aluminum alloy frame; solar panels and rechargeable battery components for charging and extended flight; LED lights to assist in accurate take-off and landing; and a positioning and control structure to ensure safety. It combines portability and functionality, improving the efficiency and reliability of drone operations.

[0008] Preferably, the positioning protection mechanism includes a horizontal ruler, the bottom of which is fixedly connected to the top of the landing platform a, and the outer perimeter of the aluminum alloy frame is fixedly connected with helipad corner protectors.

[0009] Through the above technical solution, the positioning protection mechanism of the UAV take-off and landing platform A further enhances the stability and protection of the platform by setting up a level ruler and landing pad corner guards. The bottom of the level ruler is fixedly connected to the top of the take-off and landing platform A to ensure the levelness of the platform and improve its take-off and landing accuracy. The landing pad corner guards around the platform effectively prevent external impacts and accidental damage, protecting the integrity and safety of the platform.

[0010] Preferably, the rechargeable battery assembly includes a lithium battery, the top of which is fixedly connected to the bottom of the landing platform a, a control circuit is fixedly connected to the right side of the lithium battery, and multiple busbars are fixedly connected inside the lithium battery and inside the control circuit.

[0011] Through the above technical solution: the rechargeable battery assembly of the UAV take-off and landing platform a uses lithium batteries as power sources. The lithium batteries are fixedly connected to the bottom of the take-off and landing platform a to ensure stable power supply. The control circuit is located on the right side and is responsible for managing power distribution and regulation, improving the intelligence and efficiency of the system. Multiple busbars connect the lithium batteries and the control circuit to ensure smooth and stable power flow.

[0012] Preferably, a system switch is fixedly connected to the outer left side of the aluminum alloy frame, and an indicator light switch is fixedly connected to the outer left side of the aluminum alloy frame.

[0013] With the above technical solution, the system switch and indicator light switch are fixed on the outer left side of the aluminum alloy frame. The reasonable layout improves the convenience and visibility of operation. Users can easily operate the switch from one side. At the same time, the setting of the indicator light switch ensures the intuitive display of the system status, enhancing the ease of use and safety of the equipment.

[0014] Preferably, the output component includes an output integrated interface, the external of which is fixedly connected to the inside of the aluminum alloy frame, and an AC output interface is fixedly connected to the left side of the inside of the aluminum alloy frame.

[0015] The above technical solution ensures the stability and reliability of the output components by fixing the integrated output interface inside the aluminum alloy frame and setting the AC output interface on the left side inside. The arrangement of the integrated interface helps to reduce the clutter of external connection cables, making the equipment structure more compact and neat, improving the safety and convenience of the system. The reasonable location of the AC output interface facilitates power connection operations for users, further optimizing the functionality and user experience of the equipment.

[0016] Preferably, the top of one of the busbars is fixedly connected to the bottom of the landing platform a, and the outside of the other busbar is fixedly connected to the inside of the AC output interface.

[0017] The above technical solution effectively achieves the stability and reliability of power transmission by fixing the top of one busbar to the bottom of the landing platform a and fixing the outside of another busbar to the inside of the AC output interface.

[0018] Preferably, the top of the adjusting bolt is threaded into the interior of the aluminum alloy frame, and the outer perimeter of the landing platform a is fixedly connected to the inner top side of the corner guard of the parking apron.

[0019] The above technical solution ensures a stable connection between the landing platform a and the frame by connecting the top thread of the adjusting bolt to the inside of the aluminum alloy frame, thus improving the stability of the structure. At the same time, the external surroundings of the landing platform a are fixedly connected to the inside top side of the apron corner guard, which enhances the support of the platform and prevents external forces from interfering with the platform.

[0020] Preferably, the bottom of the lithium battery is fixedly connected to the inside of the aluminum alloy frame, the bottom of the control circuit is fixedly connected to the inside of the aluminum alloy frame, and the bottoms of the plurality of bus wires are fixedly connected to the inside of the aluminum alloy frame.

[0021] The above technical solution enhances the stability and safety of the structure by fixing the bottom of the lithium battery, control circuit, and busbar inside the aluminum alloy frame. As a sturdy support, the aluminum alloy frame not only effectively protects the internal components from external damage but also optimizes thermal management and improves heat dissipation efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects of a portable, rechargeable drone take-off and landing platform:

[0023] 1. In this utility model, the take-off and landing platform a is connected to the landing pad support legs by adjusting bolts, which can be quickly deployed and stably placed in an open area; the solar cell is connected to the lithium battery through the busbar wire, and energy management is realized in conjunction with the system switch, etc., which improves the outdoor emergency applicability, can quickly adapt to the site environment, stably support the take-off and landing of the drone, and the solar energy continuously generates and stores electricity. Through the output integrated interface and LED indicator, the drone's energy consumption is monitored in real time and energy is replenished efficiently, thereby providing portable emergency flight energy for the drone;

[0024] 2. In this utility model, the positioning protection mechanism can detect whether the drone is parked horizontally, and the corner protectors of the landing pad can reduce damage to the take-off and landing platform a and the aluminum alloy frame. This not only ensures the horizontal accuracy of the drone parking and improves the parking safety, but also reduces component wear and extends the equipment life by using the corner protectors. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a portable, rechargeable drone take-off and landing platform proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a solar cell for a portable, rechargeable drone take-off and landing platform proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the take-off and landing platform a of a portable rechargeable drone take-off and landing platform proposed in this utility model.

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0029] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0030] Figure 6 yes Figure 3 Enlarged view of point C in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Helipad outriggers; 2. Adjusting bolts; 3. Aluminum alloy frame; 4. Solar power generation mechanism; 41. Landing platform a; 42. Solar cell; 43. LED landing indicator; 44. Rechargeable battery assembly; 4401. Lithium battery; 4402. Busbar; 4403. Control circuit; 4404. System switch; 4405. Indicator switch; 45. Output assembly; 4501. Output integrated interface; 4502. AC output interface; 46. Approach and departure control structure; 47. Beidou positioning structure; 5. Positioning protection mechanism; 51. Level; 52. Helipad corner protectors. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0034] Example: A portable, rechargeable drone take-off and landing platform, referring to... Figures 1 to 3 The system includes multiple helipad legs 1 and an aluminum alloy frame 3. The helipad legs 1 provide a stable support foundation for the entire take-off and landing platform a41, ensuring that it will not sway or tip over due to unstable support during the take-off, landing, parking, and operation of the UAV, thus guaranteeing the safety and reliability of the platform. The top of the multiple helipad legs 1 is threaded with adjusting bolts 2, which are used to adjust the level and height of the take-off and landing platform a41 to adapt to different work site environments and ensure that the take-off and landing platform a41 is in a stable and level state. The aluminum alloy frame 3 acts as a frame for support, integrating the helipad legs 1, the take-off and landing platform a41, the rechargeable battery assembly 44, the output assembly 45, and other components into a whole structure. The aluminum alloy frame 3 is equipped with a solar power generation mechanism 4.

[0035] Specifically, multiple landing pad legs 1 are first placed at the work site. The level and height of the aluminum alloy frame 3 and the internal solar power generation mechanism 4 are adjusted using the top adjusting bolts 2 to adapt to the site environment. After adjustment, the UAV can take off, land, and park on the take-off and landing platform a41 of the solar power generation mechanism 4. During this process, the aluminum alloy frame 3 integrates the landing pad legs 1, the take-off and landing platform a41, the rechargeable battery assembly 44, the output assembly 45, etc. into a whole. The rechargeable battery assembly 44 provides power, and the output assembly 45 is responsible for power output, ensuring the normal operation of the solar power generation mechanism 4 and meeting the take-off and landing requirements of the UAV.

[0036] The solar power generation mechanism 4 includes a take-off and landing platform a41, which provides a place for drones to take off, land, and park. It is also a carrier for installing components such as solar cells 42 and LED landing indicator lights 43. During the take-off and landing of the drone, it can detect the drone's battery level. The approach and departure control system and the Beidou positioning system are fixed below the take-off and landing platform a41. The outside of the take-off and landing platform a41 is fixedly connected to the inside of the aluminum alloy frame 3. The top of the take-off and landing platform a41 is fixedly connected to the solar cells 42, which convert solar energy into electrical energy to provide power for the operation of the entire take-off and landing platform a41 and for charging the drone. The top of the take-off and landing platform a41 is fixedly connected to multiple LED landing indicator lights 43. The LED landing indicator lights 43 assist the landing equipment in lighting up and guide the drone to approach the landing pad position, continuously comparing the position deviation. When the drone arrives and needs to land and charge, the LED landing indicator lights 43 provide visual guidance to the drone, assisting the drone to land accurately on the take-off and landing platform a41. The inside of the landing pad support leg 1 is fixedly connected to a rechargeable battery assembly 44.

[0037] Specifically, when the solar power generation mechanism 4 is working, the take-off and landing platform a41 provides a take-off, landing and parking area for the UAV, while also carrying components such as solar cells 42 and LED landing indicator lights 43. During the take-off and landing of the UAV, the platform monitors its power level. The approach and departure control system and the Beidou positioning system work together to assist the UAV in accurate take-off and landing. The solar cells 42 convert solar energy into electrical energy to power the operation of the entire take-off and landing platform a41 and to charge the UAV. When the UAV needs to land and recharge, multiple LED landing indicator lights 43 light up to guide the UAV to approach the landing pad. The system continuously compares the position deviation to assist it in accurately landing on the take-off and landing platform a41. The rechargeable battery components 44 in the landing pad support legs 1 participate in the energy supply process.

[0038] The rechargeable battery assembly 44 includes a lithium battery 4401. The top of the lithium battery 4401 is fixedly connected to the bottom of the landing platform a41. A control circuit 4403 is fixedly connected to the right side of the lithium battery 4401. The control circuit 4403 controls and manages the power distribution and operation of the entire rechargeable battery assembly 44, ensuring the safe and stable operation of the power system. Multiple busbars 4402 are fixedly connected inside the lithium battery 4401 and inside the control circuit 4403. The conductive material inside the busbars 4402 has good conductivity, enabling the transfer of electrical energy from one component to another. Different busbars 4402 are connected to different components, forming a complete circuit loop, ensuring that electrical energy can flow between components as needed. The aluminum alloy frame 3 is fixedly connected to both sides. There is an output component 45, which includes an output integrated interface 4501. The output integrated interface 4501 provides a convenient charging method for the drone, which can replenish the drone's power in a timely manner in outdoor emergency situations, extend the drone's operating time, and improve the drone's emergency operation capability. The output integrated interface 4501 is externally fixedly connected to the inside of the aluminum alloy frame 3. The output integrated interface 4501 provides 220V AC power supply for dedicated equipment. An AC power output interface 4502 is fixedly connected to the left side of the inside of the aluminum alloy frame 3, which expands the function of the take-off and landing platform a41, enabling it not only to charge the drone, but also to provide power to other AC power devices, improving the platform's practicality and emergency capability. The AC power output interface 4502 includes Type-C, USB, and QC3.0 ports.

[0039] Specifically, the lithium battery 4401 in the rechargeable battery assembly 44 provides electrical energy, which is transmitted to different components through multiple bus wires 4402 connected to the control circuit 4403. The control circuit 4403 controls and manages the power distribution and operation of the entire rechargeable battery assembly 44. In the output components 45 on both sides of the aluminum alloy frame 3, the output integrated interface 4501 charges the drone and provides 220V AC power. The AC output interface 4502 on the left (including Type-C, USB, and QC3.0 ports) supplies power to other AC devices, realizing multiple ways of outputting electrical energy.

[0040] The aluminum alloy frame 3 is equipped with a positioning protection mechanism 5 on its exterior. A system switch 4404 is fixedly connected to the left side of the aluminum alloy frame 3. The system switch 4404 allows users to operate and control the take-off and landing platform a41. When the platform is not in use, the system can be shut down to reduce energy consumption and extend the service life of the components. An indicator light switch 4405 is fixedly connected to the left side of the aluminum alloy frame 3. The indicator light switch 4405 enables individual control of the LED landing indicator light 43, avoiding unnecessary activation of the indicator light and saving energy. It also ensures that the indicator light can be activated in time when the UAV needs to land, playing an auxiliary guidance role. An approach and departure control structure 46 is fixedly connected to the bottom of the take-off and landing platform a41. The approach and departure control structure 46 can monitor the flight attitude and distance of the UAV in real time. A Beidou positioning structure 47 is fixedly connected to the bottom of the take-off and landing platform a41. The Beidou positioning structure 47 can provide centimeter-level position information, synchronously record the coordinates of the take-off and landing points and upload them to the control terminal, ensuring the positioning reliability of the UAV in complex environments.

[0041] Specifically, after the system switch 4404 is turned on, the approach and departure control structure 46 monitors the UAV's flight attitude and distance in real time, the Beidou positioning structure 47 provides centimeter-level position information, and simultaneously records the take-off and landing point coordinates and uploads them to the control terminal. When the UAV needs to land, the operation indicator switch 4405 turns on the LED landing indicator 43 to assist in guiding the UAV to land on the take-off and landing platform a41. When the platform is not needed, the system is turned off by the system switch 4404, and the LED landing indicator 43 can be turned off by operating the indicator switch 4405.

[0042] Reference Figures 4 to 6 The positioning protection mechanism 5 includes a level gauge 51, which visually reflects the horizontal status of the landing platform a41, allowing users to adjust the platform promptly to ensure it is level. This provides a stable foundation for the drone's takeoff, landing, and parking, reducing safety hazards caused by platform tilt. The bottom of the level gauge 51 is fixedly connected to the top of the landing platform a41. All four sides of the aluminum alloy frame 3 are fixedly connected to landing pad corner protectors 52, which protect the landing platform a41 and the aluminum alloy frame 3, reducing collisions and other accidents. The top of the busbar 4402 is fixedly connected to the bottom of the landing platform a41. The outside of another busbar 4402 is fixedly connected to the inside of the AC output interface 4502. The top of the adjusting bolt 2 is threadedly connected to the inside of the aluminum alloy frame 3. The outside of the landing platform a41 is fixedly connected to the inside top side of the apron corner guard 52. The bottom of the lithium battery 4401 is fixedly connected to the inside of the aluminum alloy frame 3. The bottom of the control circuit 4403 is fixedly connected to the inside of the aluminum alloy frame 3. The bottoms of multiple busbars 4402 are fixedly connected to the inside of the aluminum alloy frame 3.

[0043] Specifically, the level gauge 51 is used to reflect the level status of the take-off and landing platform a41, allowing users to determine whether the platform is level. The landing pad corner guards 52 are installed around the aluminum alloy frame 3 to protect the take-off and landing platform a41 and the aluminum alloy frame 3. The lithium battery 4401 and the control circuit 4403 are located inside the aluminum alloy frame 3 and are connected through the busbar 4402. One busbar 4402 is connected to the bottom of the take-off and landing platform a41, and the other is connected to the AC power output interface 4502. The adjusting bolt 2 is threaded into the aluminum alloy frame 3, and the status of relevant components can be adjusted by operating the adjusting bolt 2 to ensure that all parts of the device work together to provide support for the take-off, landing and parking of the UAV.

[0044] The implementation principle of this application embodiment is as follows: During use, the take-off and landing platform a41 is deployed in advance. Based on the work site environment, the platform is deployed in an open area. The landing pad legs 1 are adjusted using adjusting bolts 2 to ensure stable placement of the platform. Energy is absorbed by the solar cell 42 and stored inside the lithium battery 4401. The platform and lithium battery 4401 are connected via a busbar 4402. The system switch 4404 and indicator light switch 4405 control the operation. When the drone arrives, the platform a41 checks if the drone's dual-power (electric and battery) is insufficient. After issuing a command, auxiliary charging is performed via the LED landing indicator light 43, and charging is provided to the drone through the output integrated interface 4501. After charging is complete, the connection is disconnected to ensure the safety of the surrounding environment. Simultaneously, the platform senses the drone's position, speed, and altitude in real time. When the drone takes off and leaves the platform a41, the solar cell 42 continues to generate electricity, providing emergency energy for outdoor emergency flights.

[0045] Secondly, when the drone is parked, the positioning protection mechanism 5 is used to detect whether the drone is in a level state. At the same time, the use of the landing pad corner guards 52 reduces damage to the take-off and landing platform a41 and the aluminum alloy frame 3.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A portable, rechargeable drone take-off and landing platform, comprising multiple landing pad legs (1) and an aluminum alloy frame (3), characterized in that: The top of the multiple helipad outriggers (1) is threaded with adjusting bolts (2), the aluminum alloy frame (3) is provided with a solar power generation mechanism (4), and the aluminum alloy frame (3) is provided with a positioning protection mechanism (5). The solar power generation mechanism (4) includes a landing platform a (41), the outside of which is fixedly connected to the inside of the aluminum alloy frame (3), a solar cell (42) is fixedly connected to the top of the landing platform a (41), a plurality of LED landing indicator lights (43) are fixedly connected to the top of the landing platform a (41), a rechargeable battery assembly (44) is fixedly connected to the inside of the helipad support (1), output components (45) are fixedly connected to both sides of the aluminum alloy frame (3), an approach and departure control structure (46) is fixedly connected to the bottom of the landing platform a (41), and a Beidou positioning structure (47) is fixedly connected to the bottom of the landing platform a (41).

2. The portable rechargeable drone take-off and landing platform according to claim 1, characterized in that: The positioning protection mechanism (5) includes a horizontal ruler (51), the bottom of which is fixedly connected to the top of the landing platform a (41), and the aluminum alloy frame (3) is fixedly connected with a parking apron corner guards (52) on all four sides.

3. The portable, rechargeable drone take-off and landing platform according to claim 1, characterized in that: The rechargeable battery assembly (44) includes a lithium battery (4401), the top of which is fixedly connected to the bottom of the landing platform a (41), and a control circuit (4403) is fixedly connected to the right side of the lithium battery (4401). Multiple busbars (4402) are fixedly connected inside the lithium battery (4401) and inside the control circuit (4403).

4. The portable rechargeable drone take-off and landing platform according to claim 3, characterized in that: A system switch (4404) is fixedly connected to the outer left side of the aluminum alloy frame (3), and an indicator light switch (4405) is fixedly connected to the outer left side of the aluminum alloy frame (3).

5. A portable, rechargeable drone take-off and landing platform according to claim 3, characterized in that: The output component (45) includes an output integrated interface (4501), which is externally fixedly connected to the inside of the aluminum alloy frame (3), and an AC output interface (4502) is fixedly connected to the left side of the inside of the aluminum alloy frame (3).

6. A portable, rechargeable drone take-off and landing platform according to claim 5, characterized in that: One of the busbars (4402) is fixedly connected at the top to the bottom of the landing platform a (41), and the other busbar (4402) is fixedly connected at the outside to the inside of the AC output interface (4502).

7. A portable, rechargeable drone take-off and landing platform according to claim 2, characterized in that: The top of the adjusting bolt (2) is threaded to the inside of the aluminum alloy frame (3), and the outside of the landing platform a (41) is fixedly connected to the inside top side of the parking apron corner guard (52).

8. A portable, rechargeable drone take-off and landing platform according to claim 3, characterized in that: The bottom of the lithium battery (4401) is fixedly connected to the inside of the aluminum alloy frame (3), the bottom of the control circuit (4403) is fixedly connected to the inside of the aluminum alloy frame (3), and the bottoms of the multiple busbars (4402) are fixedly connected to the inside of the aluminum alloy frame (3).

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