Covering plate for battery box body

Abstract

The utility model discloses a cover plate for a battery box body. The cover plate comprises a base plate and a sliding plate, the sliding plate is arranged on the base plate and is in sliding connection with the base plate; a plurality of first magnetic strips are embedded in the surface of the base plate in the PA-axis direction, a plurality of second magnetic strips are embedded in the surface of the sliding plate in the PA-axis direction, the first magnetic strips and the second magnetic strips are arranged at intervals in the PB-axis direction in a gradient decreasing trend, a first inserting groove is formed in one side of the base plate, and a second inserting groove is formed in the position, on the same side of the base plate, of the sliding plate. At least one magnetic sheet is inserted into each of the first slot and the second slot, the extraction direction of the magnetic sheets is perpendicular to the arrangement direction of the magnetic strips, and the magnetic sheet group and the magnetic strip array attract each other to form a three-dimensional orthogonal magnetic circuit; the cover plate is simple in structure, ingenious in design and high in practicability, the limitation that the size of a traditional cover plate is fixed is broken through through innovative fusion of a magnetic circuit and a sliding mechanism, and a flexible and efficient solution is provided for protection of a battery pack box body in a modularized and self-adaptive adjusting mode.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a cover plate for a battery box. Background Technology

[0002] Currently, installing the cover on a battery pack requires numerous screws with densely packed and complex holes, making it easy for screws to fall into the pack and cause short circuits. Existing fixed-size cover plates can only fit a single pack model, requiring the production of multiple cover plates to accommodate different models. This not only increases production costs but also leads to low work efficiency due to the need for frequent cover plate switching. To solve the problems of short circuits caused by falling screws and poor cover plate compatibility, there is an urgent need to design a cover plate that can flexibly adapt to different battery pack models. Utility Model Content

[0003] To solve the above problems, this utility model provides a cover plate for a battery box, including a substrate and a sliding plate; the sliding plate is disposed on the substrate and is slidably connected to the substrate; a plurality of first magnetic strips are embedded on the surface of the substrate along the PA axis, and a plurality of second magnetic strips are embedded on the surface of the sliding plate along the PA axis; the first magnetic strips and the second magnetic strips are arranged at intervals with a gradient decreasing trend along the PB axis; a first slot is provided on one side of the substrate, and a second slot is provided on the same side of the substrate on the sliding plate; at least one magnetic sheet is inserted into the first slot and the second slot respectively; the direction of magnetic sheet extraction is perpendicular to the direction of magnetic strip arrangement, and the magnetic sheet group and the magnetic strip array attract each other to form a three-dimensional orthogonal magnetic circuit.

[0004] Preferably, the bottom of the slide plate is provided with a T-shaped groove, and the first magnetic strip is inserted into the T-shaped groove to form a dovetail sliding fit.

[0005] Preferably, a limiting protrusion is provided on one side of the substrate along the PB axis, and a rotary locking rod is provided on the side of the substrate away from the limiting protrusion. The slide plate is provided with a slot that cooperates with the rotary locking rod. The cooperation between the rotary locking rod and the slot can prevent the slide plate from slipping off the substrate.

[0006] Preferably, the thickness of the magnetic strip is 1~3cm.

[0007] Preferably, the height of the limiting protrusion is greater than the gap height between the substrate and the slide plate to form a mechanical stop to prevent the slide plate from slipping off the substrate.

[0008] Preferably, both the substrate surface and the slide plate surface are coated with a wear-resistant coating.

[0009] Preferably, the surface roughness Ra of the upper surface of the substrate and the bottom surface of the slide plate is less than or equal to 0.8 μm.

[0010] Preferably, both the substrate and the slide plate are made of any one of the following materials: plastic, stainless steel, metal, or alloy.

[0011] Preferably, both the substrate and the slide plate are provided with reinforcing ribs to improve the structural strength and rigidity of the entire cover plate, prevent deformation or damage due to external forces during use, and ensure the long-term stable operation of the cover plate.

[0012] The beneficial effects are as follows: This battery pack cover plate uses a sliding connection design between the base plate and the sliding plate. Combined with magnetic strips distributed at gradient intervals along the PB axis and magnetic sheet groups that attract the magnetic strip array to form a three-dimensional orthogonal magnetic circuit, the position of the sliding plate on the base plate can be flexibly adjusted according to the opening size of different battery pack models. This changes the overall coverage area of ​​the cover plate, achieving adaptation to different sized packs. This design eliminates the need to manufacture cover plates separately for each model, reducing production costs; it reduces the number of cover plate changes, improving work efficiency; and it effectively prevents screws from falling into the pack and causing short circuits, enhancing the safety and reliability of the battery pack production process, providing strong support for efficient and safe battery production. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] In the picture:

[0017] 1. Substrate; 11. First magnetic strip; 12. Limiting protrusion; 13. First slot;

[0018] 2. Slide plate; 21. Second magnetic strip; 22. Slide groove; 23. Second slot;

[0019] 3. Magnetic sheet. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Example

[0024] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is an exploded structural diagram of the present invention. This embodiment provides a cover plate for a battery box, including a base plate and a sliding plate.

[0025] To facilitate understanding of this embodiment, a direction axis is established, with PA direction as the first direction, PB direction as the second direction, and PC direction as the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The first direction and the second direction are both parallel to the upper surface of the substrate, and the third direction is perpendicular to the upper surface of the substrate.

[0026] The slide plate is mounted on the substrate along the PC axis and is slidably connected to the substrate. Multiple first magnetic strips with a thickness of 1-3 cm are embedded on the substrate surface along the PA axis. Correspondingly, multiple second magnetic strips with a thickness of 1-3 cm are embedded on the slide plate surface along the PA axis. The first and second magnetic strips are arranged alternately with a decreasing gradient along the PB axis. A first slot is provided on one side of the substrate, and a second slot is provided on the slide plate on the same side of the substrate. At least one magnetic sheet is inserted into each of the first and second slots. The direction of magnetic sheet removal is perpendicular to the direction of magnetic strip arrangement, and the magnetic sheet group and the magnetic strip array attract each other to form a three-dimensional orthogonal magnetic circuit with a magnetic attraction force greater than 15 N / cm. 2 The bottom of the skateboard has a T-shaped groove, and the first magnetic strip is inserted into the T-shaped groove to form a dovetail sliding fit.

[0027] This battery pack cover plate utilizes a sliding connection design between a base plate and a sliding plate. Combined with magnetic strips spaced at gradient intervals along the PB axis and a magnetic sheet array attracting the magnetic strips to form a three-dimensional orthogonal magnetic circuit, the position of the sliding plate on the base plate can be flexibly adjusted according to the opening size of different battery pack models. This changes the overall coverage area of ​​the cover plate, enabling adaptation to different pack sizes. This design eliminates the need to manufacture separate cover plates for each model, reducing production costs; it also reduces the number of cover plate changes, improving work efficiency; and it effectively prevents screws from falling into the pack and causing short circuits, enhancing the safety and reliability of the battery pack production process and providing strong support for efficient and safe battery production.

[0028] To prevent the slide plate from slipping off the substrate, a limiting protrusion is provided on one side of the substrate along the PB axis. The height of the limiting protrusion is greater than the gap between the substrate and the slide plate, forming a mechanical stop to prevent the slide plate from slipping off the substrate. A rotary locking rod is provided on the side of the substrate away from the limiting protrusion, and a slot is provided on the slide plate to cooperate with the rotary locking rod. When the slide plate slides outward along the PA axis to the fully withdrawn state, it is locked by the cooperation of the rotary locking rod and the slot. This combination design of mechanical limiting and locking mechanism can effectively improve the stability of the slide plate assembly structure and the safety of preventing accidental drop.

[0029] To extend the service life of the substrate and slide plate, both the substrate and slide plate are made of any of the following materials: plastic, stainless steel, copper, iron, aluminum, copper-iron alloy, and copper-aluminum alloy. A wear-resistant coating can also be applied to the surface of the substrate and the slide plate. In addition, to ensure that the slide plate can glide smoothly on the substrate, the surface roughness Ra of the upper surface of the substrate and the bottom surface of the slide plate is less than or equal to 0.8μm. Furthermore, to improve the structural strength and rigidity of the entire cover plate and prevent deformation or damage due to external forces during use, and to ensure the long-term stable operation of the cover plate, reinforcing ribs can be added inside the substrate and slide plate.

[0030] In summary, this cover plate has a simple structure, ingenious design, and strong practicality. Through the innovative integration of magnetic circuit and sliding mechanism, it breaks the limitation of fixed size of traditional cover plates and provides a flexible and efficient solution for battery pack enclosure protection with modular and adaptive adjustment.

[0031] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A cover plate for a battery box, characterized in that, The system includes a substrate and a sliding plate. The sliding plate is disposed on the substrate and is slidably connected to the substrate. A plurality of first magnetic strips are embedded on the surface of the substrate along the PA axis, and a plurality of second magnetic strips are embedded on the surface of the sliding plate along the PA axis. The first and second magnetic strips are arranged at intervals with a gradient decreasing trend along the PB axis. A first slot is provided on one side of the substrate, and a second slot is provided on the same side of the sliding plate. At least one magnetic sheet is inserted into the first slot and the second slot, respectively. The direction of extraction of the magnetic sheet is perpendicular to the arrangement direction of the magnetic strips, and the magnetic sheet group is attracted to the magnetic strip array.

2. The cover plate for the battery box according to claim 1, characterized in that, The bottom of the slide plate is provided with a T-shaped groove, and the first magnetic strip is inserted into the T-shaped groove to form a dovetail sliding fit.

3. The cover plate for the battery box according to claim 1, characterized in that, The substrate has a limiting protrusion on one side along the PB axis, and the substrate has a rotary locking rod on the side away from the limiting protrusion. The slide plate has a slot that cooperates with the rotary locking rod.

4. The cover plate for the battery box according to claim 1, characterized in that, The thickness of the magnetic strip is 1~3cm.

5. The cover plate for the battery box according to claim 3, characterized in that, The height of the limiting protrusion is greater than the gap height between the substrate and the sliding plate.

6. The cover plate for the battery box according to claim 1, characterized in that, Both the substrate surface and the slide plate surface are coated with a wear-resistant coating.

7. The cover plate for the battery box according to claim 1, characterized in that, The surface roughness Ra of the upper surface of the substrate and the bottom surface of the slide plate is less than or equal to 0.8 μm.

8. The cover plate for the battery box according to claim 1, characterized in that, Both the substrate and the slide plate are made of any of the following materials: plastic, stainless steel, metal, or alloy.

9. The cover plate for the battery box according to claim 1, characterized in that, Both the base plate and the slide plate are provided with reinforcing ribs.

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