Storage battery frame cover anti-loose locking structure, storage battery frame assembly and vehicle

Abstract

The utility model discloses a storage battery frame cover anti-loose locking structure, a storage battery frame assembly and a vehicle, and the storage battery frame cover anti-loose locking structure comprises a locking bolt which is installed on a storage battery frame cover; the anti-loosening assembly comprises a nut seat which is fixed on a storage battery frame vertical plate of the storage battery frame body, and a nut mounting hole is formed in the nut seat; the locknuts are installed in the nut installation holes in a matched mode, the locknuts are connected with the locking bolts and used for locking the storage battery frame cover and the storage battery frame body, and the locknuts are nylon or metal clamping piece locknuts; and the sealing plate is mounted on the nut seat and is used for limiting the locknut in the nut mounting hole. According to the utility model, the nylon or metal card locknut is adopted, so that the locknut has an anti-loosening effect under the condition of friction-free locking force under the working conditions of elastic deformation, bumping and the like; the nut seat is arranged on the storage battery frame body, and then the locknut is arranged in the nut seat, so that the locknut is not influenced by high temperature of a welding and baking varnish process flow, is convenient to disassemble, assemble, replace and maintain, and is limited and prevented from falling off through the sealing plate.

Description

Technical Field

[0001] This utility model relates to a battery frame cover anti-loosening locking structure, a battery frame assembly, and a vehicle, belonging to the technical field of locking structure. Background Technology

[0002] Traditional bolt-locked battery cover has a threaded rod with a handle on the end face (locked by a retaining spring to prevent it from coming off), which mates with the locking hole on the battery frame. The back of the locking hole has a welded nut. The battery cover is made of fiberglass, while the frame is made of metal. Due to the difference in materials, the hardness and toughness are different. In addition, the cover has a raised hollow pad structure around the bolt area to accommodate the retaining spring, but this also means that the tightening force on the hollow, high-toughness part cannot be guaranteed to be constant during tightening, and a complete and tight fit cannot be guaranteed. Instead, there is a slight structural deformation factor. Since the tightening force of bolts and nuts comes from the friction between the mating surfaces and threads caused by the clamping force, the elastic deformation of the hollow structure will cause the nut to gradually loosen and lose the clamping force under vibration. This will cause the tightening force to gradually weaken or even disappear. Consequently, the nut or screw (or the screw when the nut is welded) will lose the clamping friction and quickly come out under vibration, causing the battery cover to lose its lock. Under bumpy conditions, it may fall off and be damaged or lost. In muddy conditions, a large amount of mud and water stains will accumulate in the battery cover, contaminating the equipment and circuit connectors inside the battery cover. This can lead to abnormal faults such as poor connection, high temperature, and short circuit caused by electro-corrosion of joints and equipment, which will bring risks and malfunctions to the normal use of the vehicle and also cause inconvenience to maintenance.

[0003] All types of nuts rely on clamping force to achieve locking. However, under the combined effects of four factors—structural deformation, incomplete tightening due to human error, frequent vibrations and disassembly / reassembly of the battery pack cover, and maintenance of internal equipment—standard parts that rely solely on clamping force for locking, including structurally modified Spirax nuts, cannot cope with the simultaneous impact of these four adverse factors. In the event of a loss of clamping force, the best option is to use a limit nut with a locking pin or a double-nut locking system. However, these solutions require operation inside the battery pack, which is inaccessible by hand, and necessitates frequent manual disassembly / reassembly, making them impractical.

[0004] Using nylon or metal clip lock nuts instead of ordinary welded nuts can achieve the anti-loosening function. Nylon or metal clip self-locking nuts can provide built-in damping to prevent loosening after the clamping force is lost. During tightening, the damping assists in preventing loosening; even when loosened or lost due to bumps, the nylon resistance still has an anti-loosening effect, meeting the anti-loosening requirements of this working condition. However, nylon cannot be welded and cannot withstand the high-temperature baking process of overall powder coating after welding. At high temperatures, nylon will melt and deform, leading to damping failure. Frequent disassembly and assembly during daily use will cause wear and deformation, reducing damping. Welding is also not feasible, and maintenance is difficult. Furthermore, both nylon and metal clips have a lifespan and require replacement during regular maintenance. Therefore, it is necessary to solve the problem of non-welding and ease of flexible repair and replacement. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a battery frame cover anti-loosening locking structure, a battery frame assembly, and a vehicle.

[0006] To achieve the above objectives, this utility model employs a battery frame cover anti-loosening locking structure, comprising:

[0007] Tighten the bolts and install them on the battery frame cover;

[0008] Anti-loosening components include:

[0009] Nut seat, fixed to the battery frame upright plate of the battery frame body, with nut mounting holes on the nut seat;

[0010] A lock nut is fitted into the nut mounting hole. The lock nut is connected to the locking bolt and is used to lock the battery frame cover to the battery frame. The lock nut is made of nylon or metal clip lock nut.

[0011] The sealing plate, which is detachably mounted on the nut seat, is used to keep the anti-loosening nut within the nut mounting hole.

[0012] In some embodiments, the sealing plate is bolted to a nut seat.

[0013] In some embodiments, the sealing plate has a sealing plate fixing hole, and the nut seat has a threaded hole that mates with the sealing plate fixing hole.

[0014] In some embodiments, the thickness of the lock nut is the same as the thickness of the nut seat.

[0015] In some embodiments, the bottom and / or sides of the nut seat are provided with planes that mate with the sealing plate.

[0016] In some embodiments, the bottom and / or sides of the sealing plate are provided with bent edges for positioning and preventing rotation on the nut seat.

[0017] In some embodiments, the top shape of the nut seat is the same as the top shape of the corresponding position of the battery frame upright plate.

[0018] In some embodiments, the sealing plate is provided with a sealing plate observation hole corresponding to the nut mounting hole. The diameter of the sealing plate observation hole is larger than the thread outer diameter of the locking bolt and smaller than the maximum diameter at the contact end face of the anti-loosening nut and the sealing plate.

[0019] In a second aspect, this utility model provides a battery frame assembly, on which the aforementioned battery frame cover anti-loosening locking structure is installed.

[0020] A third aspect of this utility model is to provide a vehicle on which the aforementioned battery frame assembly is installed.

[0021] Compared with existing technologies, the anti-loosening locking structure of the battery frame cover of this utility model uses nylon or metal clip anti-loosening nuts, which can achieve the anti-loosening effect under frictionless locking force under conditions such as elastic deformation and bumps. By installing a nut seat on the battery frame and then installing the anti-loosening nut in the nut seat, the anti-loosening nut is not affected by the high temperature of the welding and painting process, which facilitates disassembly, replacement and maintenance. At the same time, the sealing plate limits the anti-loosening nut and prevents it from falling off. The sealing plate is easy to position and install. When the fixing bolt is tightened, the sealing plate is limited by the bent edge and will not rotate with it, which facilitates quick installation and construction.

[0022] This utility model's anti-loosening locking structure for the battery frame cover increases the vehicle's adaptability to high-frequency vibration washboard road sections. Through the locking damping effect of the anti-loosening nut, it avoids the bolt loosening caused by ordinary locking parts under high-frequency vibration, which would lead to the loss or damage of the battery frame cover, as well as the pollution of the internal environment of the battery frame and damage to electrical components and circuits. This improves the overall reliability of the vehicle and customer satisfaction, and reduces maintenance service costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an exploded structural diagram of the anti-loosening component of this utility model;

[0025] Figure 2 This is a schematic diagram of the assembly structure of the anti-loosening component of this utility model on the battery frame. Figure 1 ;

[0026] Figure 3This is a partially enlarged view of the assembly structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the assembly structure of the anti-loosening component of this utility model on the battery frame. Figure 2 ;

[0028] In the diagram: 1. Sealing plate fixing bolt, 2. Sealing plate, 21. Sealing plate observation hole, 22. Sealing plate fixing hole, 23. Sealing plate bottom straight edge, 24. Sealing plate side straight edge, 25. Sealing plate side bent edge, 3. Anti-loosening nut, 4. Nut seat, 41. Nut mounting hole, 42. Threaded hole, 43. Nut seat bottom straight edge, 44. Nut seat side straight edge, 45. Nut seat top curved surface, 5. Battery frame upright plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0030] like Figures 1-4 As shown, a battery frame cover anti-loosening locking structure includes a locking bolt installed on the battery frame cover, and an anti-loosening component that cooperates with the locking bolt for locking.

[0031] The anti-loosening component includes a nut seat 4, an anti-loosening nut 3, and a sealing plate 2. The nut seat 4 is welded to the battery frame upright plate 5 of the battery frame body, and the nut seat 4 has a nut mounting hole 41. The anti-loosening nut 3 is installed in the nut mounting hole 41 and is connected to the locking bolt to lock the battery frame cover to the battery frame body. The anti-loosening nut 3 is made of nylon or metal clip anti-loosening nut, which has an anti-loosening effect under frictionless locking force under conditions such as elastic deformation and bumps.

[0032] The sealing plate 2 is detachably installed on the nut seat 4 and is used to limit the anti-loosening nut 3 within the nut mounting hole 41, thereby limiting the anti-loosening nut 3 and preventing it from falling off.

[0033] In some embodiments, such as Figures 1-3As shown, the sealing plate 2 is mounted on the nut seat 4 using a sealing plate fixing bolt 1. The sealing plate 2 has a sealing plate fixing hole 22, and the nut seat 4 has a threaded hole 42 that mates with the sealing plate fixing hole 22. In use, the sealing plate fixing bolt 1 is passed through the sealing plate fixing hole 22 and threaded into the threaded hole 42. The sealing plate 2 seals the anti-loosening nut 3 within the nut mounting hole 41 of the nut seat 4, preventing the anti-loosening nut 3 from falling off when the locking bolt is not tightened or when the locking bolt is being inserted. Furthermore, when the nylon or metal retaining spring is worn, aged, deformed, or the locking friction is insufficient and requires repair or replacement, the sealing plate fixing bolt 1 can be removed, the sealing plate 2 removed, and the anti-loosening nut 3 replaced.

[0034] In some embodiments, such as Figure 1 As shown, the thickness of the anti-loosening nut 3 is the same as the thickness of the nut seat 4, which is used to make the sealing plate 2 press and limit the anti-loosening nut 3.

[0035] In some embodiments, such as Figure 1 As shown, the bottom and / or sides of the nut seat 4 are provided with planes that mate with the sealing plate 2. By providing mating surfaces on the sealing plate 2 and the nut seat 4, it is convenient to limit the position of the sealing plate 2. For example, a bottom straight edge 43 and a side straight edge 44 of the nut seat are provided on the nut seat 4, and a bottom straight edge 23 and a side straight edge 24 of the sealing plate are correspondingly provided on the sealing plate 2.

[0036] In some embodiments, such as Figure 1 As shown, the bottom and / or sides of the sealing plate 2 are provided with bent edges for positioning on the nut seat 4. The bent edges are used for positioning and preventing rotation, ensuring that the sealing plate 2 will not rotate due to the frictional force of the bolts when the sealing plate fixing bolts 1 are tightened, thus preventing any impact on installation efficiency and accuracy. Figure 3 As shown, for example, side bends 25 can be provided on both sides of the sealing plate 2.

[0037] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the top shape of the nut seat 4 is the same as the top shape of the corresponding position of the battery frame upright plate 5. By matching or partially matching the top edge shape features of the battery frame upright plate 5, the nut seat 4 can be quickly and accurately positioned and welded onto the battery frame upright plate 5. At the same time, in order to improve the overall aesthetic appearance, the top of the sealing plate 2 can also be designed in the same way. In this embodiment, the top of the nut seat 4 is provided with a nut seat top curved surface 45. The welding positioning accuracy is improved by adapting the top curved surface of the nut seat, and the anti-loosening nut 3 has a certain slight room for movement and adaptation, which is more conducive to the smooth insertion of the driver's hand-tightening locking bolt. It also has a certain flexible damping effect on the bolt vibration caused by the free vibration of the battery frame after the clamping force is removed, through the gap shaking.

[0038] In some embodiments, such as Figure 1 As shown, the sealing plate 2 is provided with a sealing plate observation hole 21 corresponding to the nut mounting hole 41. It can be used as a damping element of the anti-loosening nut 3 and an observation port for the thread condition. It is used for regular maintenance and inspection and judgment when the condition is poor. The diameter of the sealing plate observation hole 21 is larger than the thread outer diameter of the locking bolt and smaller than the maximum diameter of the contact end face of the anti-loosening nut 3 and the sealing plate 2, so as to ensure that the anti-loosening nut 3 will not come out of the sealing plate observation hole 21 and be lost, or partially come out and affect the clamping effect of the sealing plate 2 on the anti-loosening nut 3.

[0039] In some embodiments, the tip of the locking bolt is chamfered to facilitate alignment with the nut mounting hole 41 on the end face of the battery frame and to smoothly overcome the resistance of the anti-loosening nut, thereby reducing wear and damage to the nylon and extending its service life.

[0040] In a second aspect, this utility model provides a battery frame assembly, on which the aforementioned battery frame cover anti-loosening locking structure is installed.

[0041] A third aspect of this utility model is to provide a vehicle on which the aforementioned battery frame assembly is installed.

[0042] The battery frame cover anti-loosening locking structure of this utility model eliminates the conventionally designed welded nut on the back of the battery frame upright plate 5. Instead, it welds a nut seat 4 with a hexagonal hole that matches the anti-loosening nut model and outer size. The nut seat 4 is welded first, and then the anti-loosening nut 3 is assembled and installed. The nylon ring or metal retaining ring end of the anti-loosening nut 3 faces the non-welded surface of the nut seat 4. Since the anti-loosening nut 3 is not installed when the nut seat 4 is welded, there is no problem of high temperature damage.

[0043] Then, the sealing plate 2 is aligned with the nut seat 4 through the mating plane and the positioning bent edge, and the sealing plate fixing bolt 1 is screwed in to fix the sealing plate 2 on the nut seat 4, thereby limiting the anti-loosening nut 3. When installing the locking bolt, since the shape of the nut mounting hole 41 matches the anti-loosening nut model and external size, the locking bolt on the battery frame cover can be smoothly connected with the anti-loosening nut 3, and the anti-loosening nut 3 achieves the effect of anti-loosening and locking.

[0044] This utility model's anti-loosening locking structure for the battery frame cover increases the vehicle's adaptability to high-frequency vibration washboard road sections. Through the locking damping effect of the anti-loosening nut, it avoids the bolt loosening caused by ordinary locking parts under high-frequency vibration, which would lead to the loss or damage of the battery frame cover, as well as the pollution of the internal environment of the battery frame and damage to electrical components and circuits. This improves the overall reliability of the vehicle and customer satisfaction, and reduces maintenance service costs.

[0045] The above descriptions are merely embodiments of this utility model, and common technical solutions and / or characteristics known in the scheme are not described in detail here. It should be noted that those skilled in the art can make various modifications, improvements, or equivalent substitutions without departing from the technical solution of this utility model, and all such modifications, improvements, or equivalent substitutions should be covered within the scope of the claims of this utility model. The scope of protection claimed in this application should be determined by the content of its claims, and the detailed descriptions of the embodiments can be used to interpret the content of the claims.

Claims

1. A battery frame cover anti-loosening locking structure, characterized in that, include: Tighten the bolts and install them on the battery frame cover; Anti-loosening components include: Nut seat (4) is fixed on the battery frame upright plate (5) of the battery frame body. Nut seat (4) has a nut mounting hole (41). The anti-loosening nut (3) is installed in the nut mounting hole (41). The anti-loosening nut (3) is connected to the locking bolt and is used to lock the battery frame cover to the battery frame body. The anti-loosening nut (3) is made of nylon or metal clip anti-loosening nut. The sealing plate (2) is detachably mounted on the nut seat (4) and is used to limit the anti-loosening nut (3) within the nut mounting hole (41).

2. The battery frame cover anti-loosening locking structure according to claim 1, characterized in that, The sealing plate (2) is bolted to the nut seat (4).

3. The battery frame cover anti-loosening locking structure according to claim 2, characterized in that, The sealing plate (2) has a sealing plate fixing hole (22), and the nut seat (4) has a threaded hole (42) that mates with the sealing plate fixing hole (22).

4. The battery frame cover anti-loosening locking structure according to claim 1, characterized in that, The thickness of the anti-loosening nut (3) is the same as the thickness of the nut seat (4).

5. The anti-loosening locking structure for a battery frame cover according to claim 1, characterized in that, The bottom and / or sides of the nut seat (4) are provided with a plane that mates with the sealing plate (2).

6. The battery frame cover anti-loosening locking structure according to claim 1, characterized in that, The bottom and / or sides of the sealing plate (2) are provided with bent edges for positioning and preventing rotation on the nut seat (4).

7. The battery frame cover anti-loosening locking structure according to claim 1, characterized in that, The top shape of the nut seat (4) is the same as the top shape of the corresponding position of the battery frame upright plate (5).

8. The battery frame cover anti-loosening locking structure according to claim 1, characterized in that, The sealing plate (2) is provided with a sealing plate observation hole (21) corresponding to the nut mounting hole (41). The diameter of the sealing plate observation hole (21) is greater than the thread outer diameter of the locking bolt and less than the maximum diameter at the contact end face of the anti-loosening nut (3) and the sealing plate (2).

9. A battery frame assembly, characterized in that, The battery frame assembly is equipped with a battery frame cover anti-loosening locking structure as described in any one of claims 1-8.

10. A vehicle, characterized in that, The vehicle is equipped with the battery frame assembly as described in claim 9.

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