Power battery protective film for new energy automobile

Abstract

The utility model relates to the field of power battery protection films, in particular to a power battery protection film for a new energy automobile, which comprises a winding roller, a power battery protection film, a power battery protection film and a power battery protection film, clamping blocks are symmetrically and slidably connected to the middle of the inner wall of the roller; the limiting assembly comprises a telescopic rod, a rotating shaft and a shifting rod, one end of the shifting rod extends out of the winding roller and is connected with the shifting block, the telescopic rod is composed of an inner rod body and an outer rod body, and the cross section of the inner rod body and the cross section of the outer rod body are both rectangular. When the power battery protective film for the new energy automobile is installed and replaced, the clamping block can be controlled to stretch out and draw back by pressing the shifting block, the clamping block is tightly matched with the clamping groove in the film releasing process, slipping is avoided, and the power battery protective film has the advantages of being convenient and efficient to install and replace and stable and even in film releasing.

Description

Technical Field

[0001] This utility model relates to the field of power battery protective film, and in particular to a power battery protective film for new energy vehicles. Background Technology

[0002] As an important component of the power battery system of new energy vehicles, the power battery protective film is mainly used to protect the battery surface from scratches, corrosion and other external factors, to ensure the safety and stability of the battery, and to extend the battery's service life. In the current context of the rapid development of the new energy vehicle industry, the performance of the power battery protective film has an undeniable impact on the overall performance and market competitiveness of new energy vehicles.

[0003] Currently, in practical applications of power battery protective films, the roll is typically inserted into the drive roller on the machine. During film distribution, the friction between the drive roller and the roll is used to rotate the roll, thus distributing the film. However, this driving mode has revealed a series of drawbacks after long-term use. On the one hand, due to frictional wear between the drive roller and the roll, slippage is very likely to occur. Slippage will cause unstable film distribution speed, resulting in uneven film distribution, which seriously affects the adhesion quality of the protective film on the power battery surface and reduces the protective effect. On the other hand, the installation process of the roll is quite cumbersome. Workers need to first remove the baffle on one side of the drive roller, install the roll in place, and then reinstall the baffle. This not only consumes a lot of time and effort and increases labor costs, but the frequent removal and installation of the baffle may also lead to wear and tear on related components, reduce the service life of the equipment, and cause great inconvenience to production and maintenance.

[0004] Therefore, it is necessary to provide a new type of protective film for power batteries in new energy vehicles to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a protective film for power batteries of new energy vehicles.

[0006] The protective film for power batteries of new energy vehicles provided by this utility model includes: a roller, the outer wall of which is wrapped with a protective film, a drive roller installed inside the roller, a locking block symmetrically slidably connected in the middle of the inner wall of the roller, and a limiting component for driving the locking block to retract into the roller installed inside the roller.

[0007] Preferably, the limiting component includes: a telescopic rod, a rotating shaft, a lever, and a spring. The end of the locking block near the roller is fixedly connected to the telescopic rod. The roller is rotatably connected to the rotating shaft. The end of the telescopic rod away from the locking block is fixed to the rotating shaft. A lever is installed at one end of the roller. The end of the lever near the rotating shaft is fixedly connected to the rotating shaft. Springs are symmetrically fixedly connected inside the roller. The end of the spring near the locking block is fixedly connected to the locking block.

[0008] Preferably, the end of the lever away from the rotating shaft extends out of the roller and is fixedly connected to a lever block.

[0009] Preferably, the telescopic rod consists of an inner rod and an outer rod, with the inner rod sliding inside the outer rod.

[0010] Preferably, the longitudinal sections of both the inner and outer rods are rectangular.

[0011] Preferably, the drive roller has symmetrical slots in the middle, and the locking block is engaged in the slot.

[0012] Preferably, the two sides of the clamping block are perpendicular to the plane containing the tangent of the drive roller side.

[0013] Preferably, the dimensions of the card slot cross-section are the same as the dimensions of the card block cross-section.

[0014] Compared with related technologies, the protective film for power batteries of new energy vehicles provided by this utility model has the following beneficial effects:

[0015] Installation and replacement are convenient and efficient.

[0016] When installing and replacing the rollers, the operator can easily control the extension and retraction of the locking block by pressing the lever. With the help of the spring return force, the locking block can automatically engage or disengage from the slot of the drive roller. Unlike the traditional method, there is no need to perform cumbersome baffle disassembly and installation operations. This not only greatly shortens the installation and replacement time and reduces the labor intensity of the operators, but also reduces the wear caused by frequent disassembly and installation of parts, and extends the overall service life of the equipment.

[0017] Stable and uniform membrane deposition:

[0018] By tightly engaging the clamping block with the drive roller's slot, the rotational motion of the drive roller is precisely transmitted to the winding roller, effectively avoiding the slippage that easily occurs when relying on friction for traditional driving. The special design of the clamping block, including the perpendicular relationship between the side of the clamping block and the tangential plane of the drive roller side, as well as the consistency of the cross-sectional dimensions of the slot and the clamping block, ensures the stability of the winding roller's rotation, guarantees the uniformity of the protective film's distribution, and thus improves the adhesion quality of the protective film on the surface of the power battery, enhancing the protective effect on the battery. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the power battery protective film for new energy vehicles provided by this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the roller shown;

[0021] Figure 3 for Figure 2The diagram shows the structure of the card block;

[0022] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the card slot.

[0023] The following are the labels in the diagram: 1. Roller; 2. Protective film; 3. Drive roller; 4. Locking block; 5. Telescopic rod; 6. Shaft; 7. Lever; 8. Spring; 9. Lever; 10. Inner rod; 11. Outer rod; 12. Slot. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 4 A protective film for power batteries of new energy vehicles includes: a roller 1, a protective film 2 wrapped around the outer wall of the roller 1, a drive roller 3 installed inside the roller 1, a locking block 4 symmetrically slidably connected to the middle of the inner wall of the roller 1, a limiting component for driving the locking block 4 to retract into the roller 1 installed inside the roller 1, a lever 7 extending out of the roller 1 away from the rotating shaft 6 and fixedly connected to a lever 9, a locking groove 12 symmetrically opened in the middle of the drive roller 3, the locking block 4 locking into the locking groove 12, the two sides of the locking block being perpendicular to the plane containing the tangent of the side of the drive roller 3, and the cross-sectional dimensions of the locking groove 12 being the same as the cross-sectional dimensions of the locking block 4;

[0027] It should be noted that: by tightly engaging the locking block 4 with the slot 12 of the drive roller 3, the rotational motion of the drive roller 3 is accurately transmitted to the winding roller 1, effectively avoiding the slippage phenomenon that easily occurs when the traditional drive relies on friction.

[0028] Please see Figure 1 and Figure 2 The limiting assembly includes: a telescopic rod 5, a rotating shaft 6, a lever 7, and a spring 8. The end of the locking block 4 near the roller 1 is fixedly connected to the telescopic rod 5. The roller 1 is rotatably connected to the rotating shaft 6. The end of the telescopic rod 5 away from the locking block 4 is fixed to the rotating shaft 6. The end of the roller 1 is equipped with a lever 7. The end of the lever 7 near the rotating shaft 6 is fixedly connected to the rotating shaft 6. The inside of the roller 1 is symmetrically fixedly connected to the spring 8. The end of the spring 8 near the locking block 4 is fixedly connected to the locking block 4. The telescopic rod 5 is composed of an inner rod 10 and an outer rod 11. The inner rod 10 slides inside the outer rod 11. The longitudinal sections of the inner rod 10 and the outer rod 11 are both rectangular.

[0029] It should be noted that during the process of the locking block 4 being retracted into the winding roller 1, the distance between the locking block 4 and the rotating shaft 6 gradually decreases. The design of the telescopic rod 5 can adapt well to this change in distance. At the same time, the cross-sections of the inner rod 10 and the outer rod 11 are both rectangular. This design prevents relative rotation between the inner rod 10 and the outer rod 11, ensuring the stability and reliability of the movement of the locking block 4.

[0030] The working principle of the protective film for power batteries of new energy vehicles provided by this utility model is as follows:

[0031] Install roller 1:

[0032] When the installation work begins, the worker presses the lever 9, which drives the lever 7 to rotate. Since the lever 7 is fixedly connected to the rotating shaft 6, the rotating shaft 6 rotates together with the lever 7. The rotation of the rotating shaft 6 drives the telescopic rod 5 fixed to it to move. Since the other end of the telescopic rod 5 is connected to the locking block 4, it pushes the locking block 4 to slide towards the center of the inner wall of the roller 1. The locking block 4 gradually retracts into the roller 1. During this process, the inner rod 10 of the telescopic rod 5 slides along the inside of the outer rod 11 under the action of the locking block 4 and gradually retracts into the outer rod 11. At the same time, the locking block 4 compresses the spring 8 at the connection part, causing the spring 8 to accumulate elastic potential energy.

[0033] After the locking block 4 is fully retracted into the winding roller 1, the operator attaches the winding roller 1 onto the drive roller 3 of the machine and fine-tunes the position of the winding roller 1 so that the locking block 4 is aligned with the slot 12 in the middle of the drive roller 3. Then, the operator releases the lever 9, and the spring 8 releases its elastic potential energy to begin resetting, pushing the locking block 4 to move away from the inner wall of the winding roller 1. The locking block 4 then locks into the slot 12 of the drive roller 3. During the resetting process of the spring 8, the locking block 4 drives the telescopic rod 5 to reverse. The inner rod 10 of the telescopic rod 5 gradually slides away from the outer rod 11. The rotation of the telescopic rod 5 drives the rotating shaft 6 to reverse, thereby causing the lever 7 and the lever 9 fixed to the rotating shaft 6 to move synchronously and return to the initial position. Thus, the reliable connection between the winding roller 1 and the drive roller 3 is completed.

[0034] Film release stage:

[0035] When the machine drive device is started, the drive roller 3 begins to rotate. Since the clamping block 4 is firmly engaged in the groove 12 of the drive roller 3, the rotational motion of the drive roller 3 is transmitted to the winding roller 1 through the clamping block 4. The winding roller 1 rotates synchronously, and the protective film 2 wrapped around the outer wall of the winding roller 1 is gradually released during the rotation process, protecting the power battery of the new energy vehicle as required. At this stage, the two sides of the clamping block are perpendicular to the plane containing the tangent of the side of the drive roller 3, and the cross-section of the groove 12 is the same as the cross-section of the clamping block 4, which effectively prevents the clamping block 4 from loosening or displacement between the groove 12 and the groove 12, ensuring stable power transmission between the drive roller 3 and the winding roller 1, eliminating the slippage phenomenon that is easy to occur in the traditional friction drive method, and ensuring the uniformity and stability of the protective film 2 release.

[0036] Replace roller 1:

[0037] When it is necessary to replace the roller 1, the worker presses the lever 9 again and repeats the operation procedure at the beginning of the installation stage. The lever 9 drives the lever 7, the rotating shaft 6 and the telescopic rod 5 to rotate. The locking block 4 slides towards the center of the inner wall of the roller 1 and disengages from the locking groove 12 of the drive roller 3. The spring 8 is compressed again. At this time, the roller 1 can be removed from the drive roller 3 and the new roller 1 can be installed.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective film for power batteries in new energy vehicles, characterized in that, include: A roller (1) has a protective film (2) wrapped around its outer wall and a drive roller (3) installed inside the roller (1). The middle part of the inner wall of the roller (1) is symmetrically connected to the locking block (4). The limiting component is installed inside the roller (1) to drive the locking block (4) to retract into the roller (1). The limiting component includes: a telescopic rod (5), a rotating shaft (6), a lever (7), and a spring (8). The locking block (4) is fixedly connected to the end of the roller (1) with the telescopic rod (5). The roller (1) is rotatably connected to the rotating shaft (6). The end of the telescopic rod (5) away from the locking block (4) is fixed to the rotating shaft (6). The roller (1) is equipped with a lever (7) at one end. The lever (7) is fixedly connected to the rotating shaft (6) at the end of the rotating shaft (6). The roller (1) is symmetrically fixedly connected to the inside of the roller (1). The end of the spring (8) near the locking block (4) is fixedly connected to the locking block (4).

2. The protective film for power batteries in new energy vehicles according to claim 1, characterized in that, The end of the lever (7) away from the rotating shaft (6) extends out of the roller (1) and is fixedly connected to the lever block (9).

3. The protective film for power batteries in new energy vehicles according to claim 1, characterized in that, The telescopic rod (5) consists of an inner rod (10) and an outer rod (11), with the inner rod (10) sliding inside the outer rod (11).

4. The protective film for power batteries in new energy vehicles according to claim 3, characterized in that, The longitudinal sections of both the inner rod (10) and the outer rod (11) are rectangular.

5. The protective film for power batteries in new energy vehicles according to claim 1, characterized in that, The drive roller (3) has symmetrical slots (12) in the middle, and the locking block (4) is locked in the slot (12).

6. The protective film for power batteries in new energy vehicles according to claim 1, characterized in that, The two sides of the clamp are perpendicular to the plane containing the tangent of the side of the drive roller (3).

7. The protective film for power batteries in new energy vehicles according to claim 6, characterized in that, The dimensions of the cross-section of the slot (12) are the same as those of the cross-section of the block (4).

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