A power line protection structure for a battery module

Abstract

This utility model discloses a power cord protection structure for a battery module, belonging to the field of battery module power cord protection technology. It includes an end cap; a protective cover for housing and protecting the power cord is rotatably connected to the end cap, with the power cord located inside the protective cover, and the protective cover having a through hole for the power cord to pass through; a sealing component connected above a fixing post via a sliding assembly, capable of sealing the through hole from inside the protective cover, and the sealing component is located on the rotation path of the through hole; and an ejection spring is provided inside the fixing post to push the sealing component into the through hole. This application achieves a "one-button operation" protection function through the rotatable connection between the protective cover and the end cap, and the built-in ejection spring driving the sealing component, greatly simplifying the operation process; in addition, no independent parts are generated during installation or disassembly, fundamentally avoiding the risk of component loss, and greatly enhancing the reliability of protection and ease of use.

Description

Technical Field

[0001] This utility model provides a power line protection structure for a battery module, belonging to the field of power line protection technology for battery modules. Background Technology

[0002] As the core integrated unit between battery cells and the battery pack, the battery module uses mechanical structures to fix multiple battery cell units, connects them in series or parallel via busbars to achieve predetermined voltage and capacity, and integrates precision components such as the battery management system (BMS) slave control unit, thermal management channels, and various sensors. Its external power lines bear the core task of transmitting high-voltage electrical energy, and the reliability and safety of their connection directly affect the stable operation of the entire battery system and even the entire vehicle. Therefore, protecting the battery module's power lines is a crucial aspect of the structural design.

[0003] When battery modules are idle for extended periods, their external power cord connectors are exposed, making them highly susceptible to damage from accidental snagging, squeezing, or impacts. This can lead to loosening of the connectors, damage to internal solder joints, or even breakage of the insulation layer, posing serious safety hazards. Simultaneously, the exposed power cord connectors are also exposed to dust, moisture, and even corrosive substances. Traditionally, this problem is addressed by using a separate protective cover, secured to the module housing with bolts or screws. However, this method has significant drawbacks in practical applications: installation often requires specialized tools, making the process cumbersome and inefficient; more importantly, the disassembled protective cover and fasteners (such as screws and washers) are often separate components that need to be stored individually, making them prone to scattering and loss, greatly reducing their practicality in applications requiring frequent power cord access. Therefore, there is an urgent need for a power cord protection structure that is easy to operate and does not create separate components. Utility Model Content

[0004] The technical problem this utility model aims to solve is that the power cord protection structure of traditional battery modules often involves the operation of fasteners such as threads, which is troublesome to install and will generate independent components that need to be stored separately after disassembly.

[0005] To solve the above problems, the proposed technical solution is as follows: a power cord protection structure for a battery module, including an end cap; the end cap is fixedly connected to a housing for supporting the battery module, and a power cord passing through the housing is connected to the end cap; further comprising:

[0006] A protective cover and a fixing cylinder; the protective cover for storing and protecting the power cord is rotatably connected to the end cap, the power cord is located inside the protective cover, and the protective cover has a through hole for the power cord to pass through; the fixing cylinder located inside the protective cover is fixedly installed on the end cap, the fixing cylinder is open at the top, and a fixing post is fixedly installed inside the fixing cylinder; a sealing component that can block the through hole from inside the protective cover is connected above the fixing post through a sliding component, and the sealing component is located on the rotation path of the through hole; an ejection spring that can push the sealing component into the through hole is provided inside the fixing post.

[0007] Preferably, the sliding assembly includes a sliding rod and a sliding plate; the sliding plate is slidably disposed inside the fixed column, the sliding rod is fixedly connected to the sliding plate, and the sliding rod slides out of the fixed column and is fixedly connected to the sealing assembly.

[0008] Preferably, the ejector spring is in a compressed state and is located below the sliding plate; the lower end of the ejector spring is connected to the bottom of the fixed column, and the upper end of the ejector spring is connected to the sliding plate.

[0009] Preferably, the sealing assembly includes a sealing plate and a limiting plate; the sealing plate, which can seal the through hole from inside the protective cover, is fixedly connected to the sliding rod, and the limiting plate, which can be inserted into the through hole to limit the rotation of the protective cover, is fixedly connected above the sealing plate.

[0010] Preferably, the sealing plate is provided with a sealing gasket, and the protective cover presses against the limiting plate.

[0011] Preferably, the end cap has a slot, and a locking block fixedly connected to the bottom of the protective cover is inserted into the slot.

[0012] The beneficial effects of this utility model are:

[0013] This application achieves a "one-button operation" protection function through the rotating connection between the protective cover and the end cap, and the built-in ejector spring driving the sealing assembly. After the power cord is stored in the protective cover, simply rotate the cover until the through-hole aligns with the sealing assembly. The ejector spring then automatically releases its tension, sealing the through-hole from inside the protective cover via the sliding assembly and the sealing assembly, thus protecting the power cord. This process requires no tools or additional parts, greatly simplifying the operation. Furthermore, since the protective cover remains connected to the end cap, and the sealing assembly for the through-hole is located inside the protective cover, sealing from within the cover eliminates the need for any independent parts during installation or removal, fundamentally avoiding the risk of lost components and significantly enhancing the reliability and ease of use of the protection. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the end cap and protective cover of this utility model.

[0016] Figure 3 This is an exploded view showing the connection between the end cap and the protective cover of this utility model.

[0017] Figure 4 This is a cross-sectional view of the fixing cylinder and fixing column of this utility model.

[0018] 1. Outer shell; 2. End cap; 3. Protective cover; 4. Power cord; 5. Through hole; 6. Fixing cylinder; 7. Slot; 8. Locking block; 9. Sealing plate; 10. Limiting plate; 11. Sliding rod; 12. Fixing column; 13. Sliding plate; 14. Ejection spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] This utility model provides a power cord protection structure for a battery module: including an end cover 2; the end cover 2 is fixedly connected to the outer shell 1 for carrying the battery module, and a power cord 4 passing through the outer shell 1 is connected to the end cover 2;

[0021] As attached Figure 1 , 2 The protective cover 3, which is used to store and protect the power cord 4, is rotatably connected to the end cover 2. The end cover 2 has a slot 7, and a card block 8 fixedly connected to the bottom of the protective cover 3 is inserted into the slot 7 to ensure that the protective cover 3 will not separate from the end cover 2 when rotating. The power cord 4 is located inside the protective cover 3, and the protective cover 3 has an outlet hole 5 for the power cord 4 to pass through. The fixing cylinder 6 located inside the protective cover 3 is fixedly installed on the end cap 2. The fixing cylinder 6 has an open top and a fixing post 12 is fixedly installed inside the fixing cylinder 6. A sealing component that can block the outlet hole 5 from inside the protective cover 3 is connected above the fixing post 12 through a sliding component, and the sealing component is located on the rotation path of the outlet hole 5. During normal use, the positions of the power cord 4 and the outlet hole 5 need to correspond. Therefore, it is inconvenient to set the sealing component at the position of the power cord 4 to block the outlet hole 5. This application sets a rotating protective cover 3, which moves the outlet hole 5 to another position for sealing after the power cord 4 is stored. On the one hand, it keeps the outlet hole 5 away from the power cord 4, improving the protection effect of the power cord 4. On the other hand, it facilitates better sealing of the outlet hole 5.

[0022] As attached Figure 4The sliding assembly includes a sliding rod 11 and a sliding plate 13. The sliding plate 13 is slidably disposed within the fixed post 12, and the sliding rod 11 is fixedly connected to the sliding plate 13, with the sliding rod 11 sliding through the fixed post 12 and fixedly connected to the sealing assembly. The fixed post 12 is equipped with an ejector spring 14 capable of pushing the sealing assembly into the through-hole 5. The ejector spring 14 is in a compressed state and is located below the sliding plate 13; the lower end of the ejector spring 14 is connected to the bottom of the fixed post 12, and the upper end of the ejector spring 14 is connected to the sliding plate 13. When the through-hole 5 rotates to the position corresponding to the sealing assembly, the elastic force of the compressed ejector spring 14 causes the sliding plate 13 and the sliding rod 11 to push the sealing assembly upwards, thereby sealing the through-hole 5.

[0023] The sealing assembly includes a sealing plate 9 and a limiting plate 10. The sealing plate 9, which can block the through hole 5 from inside the protective cover 3, is fixedly connected to the sliding rod 11. A sealing gasket is provided on the sealing plate 9 to increase the sealing effect of the sealing plate 9 on the through hole 5. The protective cover 3 presses on the limiting plate 10. The limiting plate 10, which can be inserted into the through hole 5 to limit the rotation of the protective cover 3, is fixedly connected above the sealing plate 9.

[0024] The principle of this utility model

[0025] This application features a simple and efficient operation process. When protection of power cord 4 is required, see the attached... Figure 2 In this state, first neatly store the power cord 4 inside the protective cover 3. Then, rotate the protective cover 3 so that the through hole 5 rotates accordingly. When the rotation trajectory of the through hole 5 is aligned with the sealing assembly above the fixed cylinder 6, as shown in the attached figure... Figure 4 The ejector spring 14, which is under compression inside the fixed column 12, immediately releases its elastic force and pushes the sliding plate 13 upward. The sliding plate 13 drives the entire sealing plate 9 and the limiting plate 10 to move upward through the sliding rod 11, so that the sealing plate 9 blocks the through hole 5 from inside the protective cover 3; at the same time, the limiting plate 10, which is fixedly connected to the sealing plate 9, also inserts into the through hole 5 to form a mechanical lock, which restricts the rotation of the protective cover 3, thereby realizing one-button closing and locking. At this time, the power cord 4 is within the protection range of the protective cover 3, and the sealing plate 9 blocks the through hole 5, which can meet the protection of the power cord 4 under the condition that the battery module is idle for a long time.

[0026] When it is necessary to remove the power cord 4, the operation is equally simple. The user only needs to apply downward pressure to the limiting plate 10 and the sealing plate 9 to overcome the elastic force of the ejection spring 14, causing the sealing plate 9 and the limiting plate 10 to exit downward through the outlet hole 5 together. After releasing the lock, while maintaining downward pressure on the limiting plate 10, immediately rotate the protective cover 3 so that the protective cover 3 presses back onto the limiting plate 10 before releasing the downward pressure on the limiting plate 10; then continue to rotate the protective cover 3 until the outlet hole 5 corresponds to the position of the power cord 4, and the power cord 4 can be taken out from the outlet hole 5 for use. Throughout the entire operation, the protective cover 3 remains connected to the slot 7 of the end cover 2 through the locking block 8 below it, and the sealing assembly remains connected to the internal fixing post 12. No independent parts are separated, completely avoiding the risk of component loss and achieving efficient and reliable tool-free operation.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A power cord protection structure for a battery module, comprising an end cap (2); the end cap (2) is fixedly connected to a housing (1) for supporting the battery module, and a power cord (4) extending from the housing (1) is connected to the end cap (2); characterized in that, Also includes: A protective cover (3) and a fixing cylinder (6); the protective cover (3) for storing and protecting the power cord (4) is rotatably connected to the end cap (2), the power cord (4) is located inside the protective cover (3), and the protective cover (3) is provided with an exit hole (5) for the power cord (4) to pass through; the fixing cylinder (6) located inside the protective cover (3) is fixedly installed on the end cap (2), the fixing cylinder (6) is open at the top, and a fixing post (12) is fixedly installed inside the fixing cylinder (6); a sealing component that can block the exit hole (5) from inside the protective cover (3) is connected above the fixing post (12) through a sliding component, and the sealing component is located on the rotation path of the exit hole (5); an ejection spring (14) that can push the sealing component into the exit hole (5) is provided inside the fixing post (12).

2. The power line protection structure for a battery module according to claim 1, characterized in that: The sliding assembly includes a sliding rod (11) and a sliding plate (13); the sliding plate (13) is slidably disposed inside the fixed column (12), the sliding rod (11) is fixedly connected to the sliding plate (13), and the sliding rod (11) slides out of the fixed column (12) and is fixedly connected to the sealing assembly.

3. The power line protection structure for a battery module according to claim 2, characterized in that: The ejector spring (14) is in a compressed state and is located below the sliding plate (13); the lower end of the ejector spring (14) is connected to the bottom of the fixed column (12), and the upper end of the ejector spring (14) is connected to the sliding plate (13).

4. The power line protection structure for a battery module according to claim 3, characterized in that: The sealing assembly includes a sealing plate (9) and a limiting plate (10); the sealing plate (9), which can block the through hole (5) from inside the protective cover (3), is fixedly connected to the sliding rod (11), and the limiting plate (10), which can be inserted into the through hole (5) to limit the rotation of the protective cover (3), is fixedly connected above the sealing plate (9).

5. The power line protection structure for a battery module according to claim 4, characterized in that: The sealing plate (9) is provided with a sealing gasket, and the protective cover (3) presses on the limiting plate (10).

6. The power line protection structure for a battery module according to claim 1, characterized in that: The end cap (2) has a slot (7) inside, and a card block (8) fixedly connected to the bottom of the protective cover (3) is inserted into the slot (7).

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