Integrated busbar of low-altitude aircraft soft package battery
By designing an integrated busbar in the pouch battery of a low-altitude aircraft and using a water droplet temperature sensor and a nickel plate for voltage acquisition for real-time monitoring, the problem of unstable battery status monitoring in existing technologies is solved, thus improving the safety and stability of the battery system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing pouch batteries for low-altitude aircraft lack a stable integrated busbar, making it impossible to monitor battery status in real time, which poses a safety hazard.
An integrated busbar for a soft-pack battery for low-altitude aircraft was designed. Temperature and voltage are sampled using a water droplet temperature sensor and a nickel strip for voltage acquisition. Stable installation of the copper busbar is ensured through the cooperation of fixing posts and limiting components.
It enables reliable sampling of the temperature and voltage of pouch batteries, improves the stability of the integrated busbar, avoids damage to sensors during transportation, and ensures the safe operation of the battery system.
Smart Images

Figure CN224082471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated busbars, specifically to an integrated busbar for a soft-pack battery for a low-altitude aircraft. Background Technology
[0002] Pouch batteries are batteries that use flexible packaging materials (such as aluminum-plastic composite film) as their casing. Compared to traditional aluminum-cased batteries, pouch batteries are lighter, which helps reduce the overall weight of low-altitude aircraft, improving flight efficiency and range. Pouch batteries also typically have higher energy density, meaning they can store more energy for the same weight, thus providing longer flight time for low-altitude aircraft. Furthermore, pouch batteries exhibit excellent safety features. When internal expansion occurs, pouch batteries can release pressure outwards, reducing the risk of explosion. Therefore, they are widely used in low-altitude aircraft.
[0003] During use, pouch batteries require the installation of an integrated busbar to monitor the battery status in real time, including voltage and temperature. This helps to detect potential safety hazards in a timely manner and ensure the safe operation of the battery system. Therefore, it is necessary to design a reliable and stable integrated busbar for low-altitude aircraft pouch batteries that can sample temperature and voltage. Summary of the Invention
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an integrated busbar for a soft-pack battery of a low-altitude aircraft. The water droplet temperature sensor can sample the temperature of the soft-pack battery, and the voltage acquisition nickel plate can sample the voltage of the soft-pack battery. Furthermore, through the cooperation of the fixing column and the first limiting member, the stability of the copper busbar after installation can be high, making the product stable and reliable during use.
[0005] According to the technical solution provided by this utility model embodiment, an integrated busbar for a soft-pack battery of a low-altitude aircraft includes an isolation bracket, with a fixing post fixedly installed inside the isolation bracket; a copper busbar fitted onto the outside of the fixing post; a first through hole corresponding to the fixing post on the surface of the copper busbar, through which the fixing post passes; and a first limiting member installed on the side of the isolation bracket, the first limiting member including a mounting block, a positioning sleeve, a limiting plate, and a first screw; the mounting block is installed on the side of the isolation bracket by a countersunk screw, and the surface of the mounting block has a countersunk hole matching the countersunk screw. The positioning sleeve is fixedly connected to the side of the mounting block. The interior of the positioning sleeve has a through groove that matches the limiting plate. The surface of the limiting plate has a threaded groove, and the surface of the positioning sleeve has a second through hole. The end of the first screw passes through the second through hole and screws into the threaded groove. The side of the isolation bracket has a first opening corresponding to the limiting plate. The end of the limiting plate passes through the first opening and the through groove and abuts against the side of the copper busbar. An FR4 isolation plate is installed inside the isolation bracket by a second screw. The FR4 isolation plate has a rectangular structure. A connector is fixedly installed on the FR4 isolation bracket. 4. The side of the isolation plate, the end of the FDC assembly bypasses the FR4 isolation plate and connects to the connector; a voltage acquisition nickel plate is fixedly installed between the copper busbar and the FDC assembly; a water droplet temperature sensor is fixedly connected to the FDC assembly; the side of the isolation bracket is provided with a detection port; a second limiting member is installed inside the isolation bracket, the second limiting member includes a connecting seat, a spring, a moving block, a limiting block, a guide plate and an end plate; a partition rod is fixedly installed inside the isolation bracket, the connecting seat is fixedly installed on the side of one of the partition rods, and the spring connects... The connecting seat is positioned between the connecting base and the moving block. The connecting base has a slot on its side, and the spring is located within the slot. The water droplet temperature sensor passes through the connecting base. The limiting block is fixedly connected to the side of the moving block. The connecting base has a second opening corresponding to the limiting block on its side, through which the limiting block passes. The limiting block is located on the side of the water droplet temperature sensor. The guide plate is fixedly connected to the side of the connecting base. The moving block is slidably mounted on the outside of the guide plate. The moving block has a sliding opening on its side that matches the guide plate. The end plate is fixedly mounted on the end of the guide plate.
[0006] In summary, the beneficial effects of this utility model are as follows:
[0007] 1. The water droplet temperature sensor can sample the temperature of the soft-pack battery, and the voltage sampling nickel plate can sample the voltage of the soft-pack battery. Furthermore, through the cooperation of the fixing post and the first limiting component, the stability of the copper busbar after installation is high, making this product stable and reliable during use.
[0008] 2. When this product is moved or transported, the second limiting component can limit the water droplet temperature sensor, which can prevent the water droplet temperature sensor from colliding with other objects due to displacement during movement or transportation, making the water droplet temperature sensor less prone to damage. Attached Figure Description
[0009] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the structure of the first limiting member of this utility model;
[0012] Figure 3 This is a schematic diagram of the structure of the limiting plate of this utility model;
[0013] Figure 4 This is a top view of the connection between the mounting block and the positioning sleeve of this utility model.
[0014] Figure 5 This is a side view of the connection between the water droplet temperature sensor and the second limiting member of this utility model.
[0015] The following are the labeling elements in the diagram: 1. Isolation bracket; 2. Fixing column; 3. Copper busbar; 4. First limiting component; 5. Mounting block; 6. Positioning sleeve; 7. Limiting plate; 8. First screw; 9. Countersunk hole; 10. Through groove; 11. Screw groove; 12. FR4 isolation plate; 13. Connector; 14. FDC assembly; 15. Nickel strip for collecting voltage; 16. Water droplet temperature sensor; 17. Second limiting component; 18. Connecting seat; 19. Spring; 20. Moving block; 21. Limiting block; 22. Guide plate; 23. End plate. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An integrated busbar for a soft-pack battery for a low-altitude aircraft includes an isolation bracket 1, with a fixing post 2 fixedly installed inside the isolation bracket 1; a copper busbar 3, which is fitted onto the outside of the fixing post 2; a first limiting member 4, which is installed on the side of the isolation bracket 1 and includes a mounting block 5, a positioning sleeve 6, a limiting plate 7, and a first screw 8; an FR4 isolation plate 12, which is installed inside the isolation bracket 1 by a second screw; and a connector 13, which is fixedly installed on the FR4 isolation plate 1. On the side of 2, the end of the FDC assembly 14 bypasses the FR4 isolation plate 12 and connects to the connector 13; a voltage acquisition nickel plate 15 is fixedly installed between the copper busbar 3 and the FDC assembly 14; a water droplet temperature sensor 16 is fixedly connected to the FDC assembly 14; a second limiting member 17 is installed inside the isolation bracket 1, and the second limiting member 17 includes a connecting seat 18, a spring 19, a moving block 20, a limiting block 21, a guide plate 22, and an end plate 23.
[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the surface of the copper busbar 3 is provided with a first through hole corresponding to the fixing post 2, and the fixing post 2 passes through the first through hole. The mounting block 5 is installed on the side of the isolation bracket 1 by countersunk screws. The surface of the mounting block 5 is provided with countersunk holes 9 that match the countersunk screws, which facilitates the installation of the countersunk screws. The positioning sleeve 6 is fixedly connected to the side of the mounting block 5, and the interior of the positioning sleeve 6 is provided with a through groove 10 that matches the limiting plate 7.
[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the surface of the limiting plate 7 is provided with a screw groove 11, and the surface of the positioning sleeve 6 is provided with a second through hole, which facilitates the installation of the first screw 8. The end of the first screw 8 passes through the second through hole and is screwed into the screw groove. The side of the isolation bracket 1 is provided with a first opening corresponding to the limiting plate 7, which facilitates the passage of the limiting plate 7. The end of the limiting plate 7 passes through the first opening and the through groove 10 and abuts against the side of the copper busbar 3. The FR4 isolation plate 12 has a rectangular structure, and the side of the isolation bracket 1 is provided with a detection port, which facilitates the passage of the water droplet temperature sensor 16.
[0021] like Figure 1 and Figure 5 As shown, a partition rod is fixedly installed inside the isolation bracket 1. The connecting seat 18 is fixedly installed on the side of one of the partition rods. The spring 19 is connected between the connecting seat 18 and the moving block 20. The side of the connecting seat 18 has a slot to facilitate the storage of the spring 19, which is located within the slot. The water droplet temperature sensor 16 passes through the connecting seat 18. The limiting block 21 is fixedly connected to the side of the moving block 20. The side of the connecting seat 18 has a second opening corresponding to the limiting block 21, facilitating the passage of the limiting block 21. The limiting block 21 passes through the second opening and is located on the side of the water droplet temperature sensor 16. The guide plate 22 is fixedly connected to the side of the connecting seat 18. The moving block 20 is slidably installed on the outside of the guide plate 22. The side of the moving block 20 has a sliding opening that matches the guide plate 22. The end plate 23 is fixedly installed at the end of the guide plate 22.
[0022] In use: When this product is moved or transported, the second limiting member 17 can limit the water droplet temperature sensor 16, preventing it from colliding with other objects due to displacement during movement or transport, thus reducing the risk of damage. When using this product, first move the moving block 20, which will stretch the spring 19, allowing the end of the limiting block 21 to move away from the connecting seat 18. Then, the water droplet temperature sensor 16 can be moved out of the connecting seat 18. Next, the tab of the low-altitude aircraft soft-pack battery is passed through the isolation bracket 1 and welded to the copper busbar 3. Then, the water droplet temperature sensor 16 is passed through the detection port and connected to the soft-pack battery. The water droplet temperature sensor 16 can sample the temperature of the soft-pack battery, and the voltage sampling nickel plate 15 can sample the voltage of the soft-pack battery. Furthermore, the combination of the fixing column 2 and the first limiting member 4 ensures high stability of the copper busbar 3 after installation, making the product stable and reliable during use.
[0023] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles and solutions employed. Furthermore, the scope of this invention is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.
Claims
1. An integrated busbar for a pouch battery in a low-altitude aircraft, characterized in that: Includes an isolation bracket (1), and a fixing column (2) is fixedly installed inside the isolation bracket (1); A copper busbar (3) is fitted onto the outside of the fixed post (2); The first limiting member (4) is installed on the side of the isolation bracket (1). The first limiting member (4) includes a mounting block (5), a positioning sleeve (6), a limiting plate (7), and a first screw (8). FR4 isolation plate (12), which is installed inside the isolation bracket (1) by a second screw; Connector (13), the connector (13) is fixedly mounted on the side of the FR4 isolation plate (12), and the end of the FDC assembly (14) is connected to the connector (13) by bypassing the FR4 isolation plate (12); A voltage acquisition nickel plate (15) is fixedly installed between the copper busbar (3) and the FDC assembly (14); Water droplet temperature sensor (16), the water droplet temperature sensor (16) is fixedly connected to the FDC assembly (14); The second limiting member (17) is installed inside the isolation bracket (1). The second limiting member (17) includes a connecting seat (18), a spring (19), a moving block (20), a limiting block (21), a guide plate (22), and an end plate (23).
2. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 1, characterized in that: The surface of the copper busbar (3) is provided with a first through hole corresponding to the fixing post (2), and the fixing post (2) passes through the first through hole.
3. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 1, characterized in that: The mounting block (5) is mounted on the side of the isolation bracket (1) by countersunk screws. The surface of the mounting block (5) is provided with countersunk holes (9) that match the countersunk screws. The positioning sleeve (6) is fixedly connected to the side of the mounting block (5). The interior of the positioning sleeve (6) is provided with a through groove (10) that matches the limiting plate (7).
4. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 3, characterized in that: The surface of the limiting plate (7) is provided with a screw groove (11), the surface of the positioning sleeve (6) is provided with a second through hole, the end of the first screw (8) passes through the second through hole and is screwed into the screw groove, the side of the isolation bracket (1) is provided with a first opening corresponding to the limiting plate (7), and the end of the limiting plate (7) passes through the first opening and the through groove (10) and abuts against the side of the copper busbar (3).
5. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 1, characterized in that: The FR4 isolation plate (12) has a rectangular structure, and the side of the isolation bracket (1) is provided with a detection port.
6. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 1, characterized in that: The isolation bracket (1) has a partition rod fixedly installed inside. The connecting seat (18) is fixedly installed on the side of one of the partition rods. The spring (19) is connected between the connecting seat (18) and the moving block (20). The side of the connecting seat (18) is provided with a slot, and the spring (19) is located in the slot.
7. The integrated busbar of a soft-pack battery for a low-altitude aircraft according to claim 1, characterized in that: The water droplet temperature sensor (16) passes through the connecting seat (18), the limiting block (21) is fixedly connected to the side of the moving block (20), the side of the connecting seat (18) is provided with a second opening corresponding to the limiting block (21), the limiting block (21) passes through the second opening, the limiting block (21) is located on the side of the water droplet temperature sensor (16), the guide plate (22) is fixedly connected to the side of the connecting seat (18), the moving block (20) is slidably installed on the outside of the guide plate (22), the side of the moving block (20) is provided with a sliding opening matching the guide plate (22), and the end plate (23) is fixedly installed on the end of the guide plate (22).