A quick-release structure of an electric vehicle battery bottom guard plate facilitating cleaning

Abstract

The utility model provides a kind of electric vehicle battery bottom guard plate quick-release structure being favorable to cleaning, belong to electric vehicle parts technical field. Including: battery bottom guard plate, be located below electric vehicle chassis, for covering and protecting battery pack;Several quick-release splicing components are used to install battery bottom guard plate on automobile chassis, the quick-release splicing component includes the lower L type board fixedly arranged on battery bottom guard plate, the upper L type board fixedly arranged at the bottom of automobile chassis and with the side wall sliding connection of lower L type board, the locking pin passing through lower L type board and upper L type board, the outer expansion plate integrally formed in the top of lower L type board for guiding locking pin.The core advantage of the utility model is that its pulling is unlocked, and pushing is locked operation mode, dismounting process is extremely simple, time-saving, dismounting is convenient, which makes the cleaning and inspection of battery bottom can become an easy routine maintenance work, greatly improves user experience and maintenance convenience.

Description

Technical Field

[0001] This utility model provides a quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, belonging to the field of electric vehicle component technology. Background Technology

[0002] With the rapid development of the new energy vehicle industry, electric vehicles have become one of the mainstream means of transportation. As the core component of electric vehicles, the safety and reliability of the power battery pack are of paramount importance. The battery pack is usually located under the vehicle chassis. To prevent damage caused by external factors such as road bumps, gravel impacts, and mud and water erosion during driving, a large battery underbody protection plate is usually installed under the battery pack for physical protection.

[0003] In existing technologies, battery underbody protection plates are mostly directly fastened to the vehicle chassis frame using dozens of bolts and connecting brackets. While this method provides a secure connection, it has significant drawbacks: First, during disassembly and assembly, maintenance personnel need to use a lift to raise the vehicle and then use specialized wrenches and other tools to loosen or tighten numerous bolts one by one. This process is extremely cumbersome, time-consuming, and inconvenient. Furthermore, the tedious disassembly process makes cleaning the inside of the battery underbody protection plate extremely difficult, hindering routine maintenance. Therefore, this invention provides a quick-release structure for electric vehicle battery underbody protection plates that facilitates cleaning. Utility Model Content

[0004] The technical problem solved by this utility model is that the bolts require professional tools to disassemble and assemble, the disassembly and assembly process is extremely cumbersome and time-consuming, not convenient enough, and daily maintenance work is not easy enough.

[0005] To solve the technical problem, the technical solution provided by this utility model is: a quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, comprising:

[0006] Battery underbody protection plate, located under the chassis of electric vehicle, is used to cover and protect the battery pack;

[0007] Several quick-release splicing components are used to install a battery underbody plate on a vehicle chassis. The quick-release splicing components include a lower L-shaped plate fixedly installed on the battery underbody plate, an upper L-shaped plate fixedly installed at the bottom of the vehicle chassis and slidably connected to the side wall of the lower L-shaped plate, a locking pin passing through the lower L-shaped plate and the upper L-shaped plate, and an outer expansion plate integrally formed on the top of the lower L-shaped plate to guide the locking pin.

[0008] Furthermore, the quick-release splicing assembly also includes a hollow cylinder fixedly mounted on the side wall of the upper L-shaped plate, a sliding plate slidably connected to the inner side wall of the hollow cylinder, a pull rod fixedly mounted on one side wall of the sliding plate and passing through the hollow cylinder, and a handwheel fixedly connected to the other end of the pull rod and placed on the outside of the hollow cylinder. A return spring placed on the outside of the pull rod and a rubber sleeve located on the outside of the return spring are fixedly connected between one inner side wall of the hollow cylinder and one side wall of the sliding plate.

[0009] Furthermore, one end of the locking pin is inserted into the hollow cylinder and fixedly connected to the other side wall of the slide plate, and the lower part of the other end of the locking pin is chamfered. The lower L-shaped plate and the upper L-shaped plate are provided with locking holes for the locking pin to pass through.

[0010] Furthermore, the upper L-shaped plate has symmetrical sliding grooves on both sides of its sidewall, and the lower L-shaped plate has a sliding rail that matches the sliding grooves on its sidewall.

[0011] Furthermore, the upper L-shaped plate has mounting holes at its top, and the lower L-shaped plate is fixed to the top edge of the battery bottom guard plate by bolts.

[0012] Furthermore, the bottom of the battery bottom cover plate is provided with several reinforcing ribs.

[0013] Furthermore, the top of the battery bottom guard plate is provided with a sealing ring strip placed inside the lower L-shaped plate, and the sealing ring strip is made of rubber material.

[0014] The beneficial effects of this utility model are:

[0015] The core advantage of this utility model lies in its operation mode of unlocking by pulling and locking by pushing. The disassembly and assembly process is extremely simple, time-saving, and convenient, which makes cleaning and inspecting the bottom of the battery an easy daily maintenance task, greatly improving the user experience and maintenance convenience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, according to this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, according to this utility model. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, according to this utility model. Figure 3 .

[0019] Figure 4 This is a partially enlarged view A of a quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, according to this utility model.

[0020] Figure 5 This is a plan view of a quick-release structure for the bottom guard plate of an electric vehicle battery that is easy to clean, according to this utility model.

[0021] Figure 6 This is a partially enlarged view (B) of a quick-release structure for the bottom guard plate of an electric vehicle battery that facilitates cleaning, according to this utility model.

[0022] 1. Battery bottom protection plate; 2. Quick-release splicing assembly; 3. Lower L-shaped plate; 4. Upper L-shaped plate; 5. Locking pin; 6. Outer expansion plate; 7. Hollow cylinder; 8. Slide plate; 9. Pull rod; 10. Handwheel; 11. Return spring; 12. Rubber sleeve; 13. Chamfer; 14. Slide groove; 15. Slide rail; 16. Mounting hole; 17. Bolt; 18. Reinforcing rib; 19. Sealing ring strip. Detailed Implementation

[0023] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0024] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0025] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] According to the appendix Figure 1 , 2As shown in Figure 5: This utility model provides a quick-release structure for an electric vehicle battery underbody protection plate that facilitates cleaning: it includes a battery underbody protection plate 1, located under the electric vehicle chassis, used to cover and protect the battery pack. The bottom of the battery underbody protection plate 1 is provided with several reinforcing ribs 18 to enhance the structural strength of the battery underbody protection plate 1. The top of the battery underbody protection plate 1 is provided with a sealing ring strip 19 placed inside the lower L-shaped plate 3. The sealing ring strip 19 is made of rubber. Specifically, the battery underbody protection plate 1 covers the bottom of the battery pack under the vehicle chassis, playing a major physical protection role. It is combined with reinforcing ribs 18 to enhance the resistance to impact and deformation. The sealing ring strip 19 is used so that when the battery underbody protection plate 1 is installed in place, the sealing ring strip 19 is tightly attached to the bottom surface of the battery pack frame and compressed, thereby forming a reliable waterproof and dustproof barrier.

[0027] As per the instruction manual Figure 1 , 3 As shown in Figure 4: Several quick-release splicing components 2 are used to install the battery bottom guard plate 1 onto the vehicle chassis. The quick-release splicing components 2 include a lower L-shaped plate 3 fixedly mounted on the battery bottom guard plate 1, an upper L-shaped plate 4 fixedly mounted on the bottom of the vehicle chassis and slidably connected to the side wall of the lower L-shaped plate 3, a locking pin 5 passing through the lower L-shaped plate 3 and the upper L-shaped plate 4, and an expansion plate 6 integrally formed on the top of the lower L-shaped plate 3 to guide the locking pin 5. The upper L-shaped plate 4 has symmetrically provided sliding grooves 14 on both sides of its side wall, and the lower L-shaped plate 3 has... The wall is provided with a slide rail 15 that matches the slide groove 14. The top of the upper L-shaped plate 4 is provided with a mounting hole 16. The lower L-shaped plate 3 is fixed to the top edge of the battery bottom guard plate 1 by bolts 17. Specifically, high-strength bolts passing through the mounting hole 16 are used to firmly fix the upper L-shaped plate 4 to the body longitudinal beam or subframe structure of the vehicle chassis, and to the top edge of the battery bottom guard plate 1 by bolts 17. During installation, the slide rail 15 slides along the slide groove 14 to guide and prevent misalignment.

[0028] As per the instruction manual Figure 4 , 6As shown: The quick-release splicing assembly 2 also includes a hollow cylinder 7 fixedly mounted on the side wall of the upper L-shaped plate 4, a sliding plate 8 slidably connected to the inner side wall of the hollow cylinder 7, a pull rod 9 fixedly mounted on one side wall of the sliding plate 8 and passing through the hollow cylinder 7, and a handwheel 10 fixedly connected to the other end of the pull rod 9 and placed on the outside of the hollow cylinder 7. A return spring 11 placed on the outside of the pull rod 9 and a rubber sleeve 12 located on the outside of the return spring 11 are fixedly connected between one inner side wall of the hollow cylinder 7 and one side wall of the sliding plate 8. One end of the locking pin 5 is inserted into the hollow cylinder 7 and fixedly connected to the other side wall of the sliding plate 8. The lower part of the other end of the locking pin 5 is provided with a chamfer 13. The lower L-shaped plate 3 and the upper L-shaped plate 4 are provided with locking holes for the locking pin 5 to pass through. Specifically, under the push of the return spring 11, the locking pin 5 is in a naturally extended state. The chamfer 13 at one end of the locking pin 5 moves along the outer expansion plate 6 to guide the locking pin 5 to be smoothly inserted into the locking hole during installation. The locking pin 5 can be made of materials such as 45# steel and quenched to improve its strength and wear resistance.

[0029] The principle of this utility model

[0030] Installation process:

[0031] Operators will lift the battery bottom protection plate 1 to the designated installation position using lifting equipment or manually;

[0032] Push the battery bottom cover plate 1 upwards so that the slide rail 15 on the lower L-shaped plate 3 is aligned with and slides into the slide groove 14 of the upper L-shaped plate 4;

[0033] Continue pushing the battery bottom guard plate 1 upward. The chamfer 13 of the locking pin 5 will contact the outer expansion plate 6 first. As the battery bottom guard plate 1 moves the outer expansion plate 6 upward, the locking pin 5 will slide along the inclined surface of the outer expansion plate 6. Then the outer expansion plate 6 will push the locking pin 5 towards the hollow cylinder 7, thereby compressing the rubber sleeve 12 and the return spring 11. When the locking pin 5 is in contact with the lock hole, the return spring 11 will immediately release energy and push the slide plate 8 and the locking pin 5 forward. The locking pin 5 will click through the pre-aligned lock holes on the lower L-shaped plate 3 and the upper L-shaped plate 4 to complete the locking.

[0034] At this point, the sealing ring 19 is tightly pressed against the bottom surface of the battery pack frame, forming a reliable seal.

[0035] Disassembly process:

[0036] The operator does not need any tools; simply hold handwheel 10 and pull it outwards.

[0037] The pulling force is transmitted to the slide plate 8 through the pull rod 9, causing the slide plate 8 to move backward against the elastic force of the return spring 11. The locking pin 5, which is fixed to the slide plate 8, then completely exits from the lock hole, releasing the lock on the lower L-shaped plate 3.

[0038] After unlocking all the quick-release splicing components 2 in sequence, the battery bottom guard plate 1 can slide down along the slide groove 14 or be directly removed under the action of gravity or with the assistance of external force, thus completing the disassembly.

[0039] In summary, the core advantage of this utility model lies in its pull-to-unlock and push-to-lock operation mode. The operator does not need any professional tools. They can simply pull the handwheels 10 located on the side skirt of the vehicle or in an easily accessible position to unlock all quick-release splicing components 2 in a few seconds. After disassembly, the installation process is equally convenient. Simply lift the bottom guard plate into place, align the slide rail 15 with the slide groove 14, and the locking pin 5 will slide along the inclined surface of the outer expansion plate 6. Under the action of the return spring 11, the locking pin 5 will automatically spring into the lock hole to complete the locking. The disassembly and assembly process is extremely simple, time-saving, and convenient. This makes cleaning and inspecting the bottom of the battery an easy daily maintenance task, greatly improving the user experience and maintenance convenience.

[0040] 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 quick-release structure for the bottom cover of an electric vehicle battery that facilitates cleaning, characterized in that, include: Battery underbody plate (1), located under the chassis of electric vehicle, is used to cover and protect the battery pack; Several quick-release splicing components (2) are used to install the battery bottom guard plate (1) on the vehicle chassis. The quick-release splicing components (2) include a lower L-shaped plate (3) fixedly installed on the battery bottom guard plate (1), an upper L-shaped plate (4) fixedly installed at the bottom of the vehicle chassis and slidably connected to the side wall of the lower L-shaped plate (3), a locking pin (5) passing through the lower L-shaped plate (3) and the upper L-shaped plate (4), and an outer expansion plate (6) integrally formed on the top of the lower L-shaped plate (3) for guiding the locking pin (5).

2. The quick-release structure for a cleanable electric vehicle battery bottom cover as described in claim 1, characterized in that: The quick-release splicing assembly (2) also includes a hollow cylinder (7) fixedly mounted on the side wall of the upper L-shaped plate (4), a sliding plate (8) slidably connected to the inner side wall of the hollow cylinder (7), a pull rod (9) fixedly mounted on one side wall of the sliding plate (8) and passing through the hollow cylinder (7), and a handwheel (10) fixedly connected to the other end of the pull rod (9) and placed on the outside of the hollow cylinder (7). A return spring (11) placed on the outside of the pull rod (9) and a rubber sleeve (12) located on the outside of the return spring (11) are fixedly connected between one inner side wall of the hollow cylinder (7) and one side wall of the sliding plate (8).

3. The quick-release structure for the bottom cover of an electric vehicle battery that facilitates cleaning, as described in claim 2, is characterized in that: One end of the locking pin (5) is inserted into the hollow cylinder (7) and fixedly connected to the other side wall of the slide plate (8). The other end of the locking pin (5) has a chamfer (13) at the bottom. The lower L-shaped plate (3) and the upper L-shaped plate (4) have locking holes through which the locking pin (5) passes.

4. The quick-release structure for the bottom cover of an electric vehicle battery that facilitates cleaning, as described in claim 1, is characterized in that: The upper L-shaped plate (4) has symmetrically provided sliding grooves (14) on both sides of its sidewall, and the lower L-shaped plate (3) has a sliding rail (15) that matches the sliding grooves (14) on its sidewall.

5. The quick-release structure for the bottom cover of an electric vehicle battery that facilitates cleaning, as described in claim 1, is characterized in that: The upper L-shaped plate (4) has a mounting hole (16) at the top, and the lower L-shaped plate (3) is fixedly mounted on the top edge of the battery bottom guard plate (1) by bolts (17).

6. The quick-release structure for the bottom cover of an electric vehicle battery that facilitates cleaning, as described in claim 1, is characterized in that: The bottom of the battery bottom cover plate (1) is provided with several reinforcing ribs (18).

7. The quick-release structure for a battery bottom cover of an electric vehicle that facilitates cleaning, as described in claim 1, is characterized in that: The top of the battery bottom guard plate (1) is provided with a sealing ring strip (19) placed inside the lower L-shaped plate (3), and the sealing ring strip (19) is made of rubber material.

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