Battery box cover quick change structure

By designing a quick-change battery box cover structure, and utilizing a segmentation and positioning mechanism, the inconvenience of assembling and disassembling the battery box cover is solved, enabling rapid adjustment of the internal space of the battery box and efficient battery replacement.

CN224537224UActive Publication Date: 2026-07-21CHONGQING TONGDA MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING TONGDA MOLD CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing quick-change battery box cover structure is inconvenient for quick pre-positioning and disassembly during use, and makes it difficult to adjust the internal space of the battery box.

Method used

The battery box cover adopts a quick-change structure, which includes a battery box, a cover, a dividing mechanism and a positioning mechanism. The internal limiting of the battery box and the quick pre-positioning of the cover are achieved through components such as dividing plates, connecting plates, tension springs and connecting bolts. The reliable connection and quick separation of the cover and the battery box are achieved by using a synchronous frame, positioning blocks and rotating columns.

Benefits of technology

It enables quick pre-positioning and disassembly of the battery box cover, facilitating the adjustment of the internal space of the battery box and improving the efficiency of battery replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to new energy automobile technical field especially battery box cover quick change structure. Including battery box, the outside of battery box top is connected with the cover of sliding, the inside installation of battery box has for separating partition mechanism, both sides of partition board inside are connected with the connecting plate of sliding, the connecting plate is connected with battery box sliding, and the inside of both connecting plates between and located partition board is fixed with first tension spring, the top of partition board is provided with the assembling plate, the top of connecting plate is connected with the assembling plate sliding, the inside of both sides of assembling plate is connected with connecting bolt rotation, and the outside of connecting bolt bottom is connected with partition board threadedly. The utility model provides battery box cover quick change structure, through the cooperation of battery box, cover, positioning mechanism and partition mechanism, thereby can be in use, through the position of partition mechanism in battery box inside, the both ends of battery are positioned, and when cover is installed on the outside of battery box, realizes assembly preposition through positioning mechanism.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a quick-change structure for battery box cover. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form automobiles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. Currently, the most common new energy vehicles on the market are electric vehicles.

[0003] Electric vehicles are powered by battery packs, which are typically stored in battery boxes. The battery boxes are protected by battery box covers. The battery boxes and battery box covers are usually connected and fixed by bolts.

[0004] When using the above technology, the following technical problems were found in the existing technology: the existing quick-change battery box cover structure is not convenient for quick pre-positioning during assembly and for adjusting the space inside the battery box during disassembly. Therefore, a quick-change battery box cover structure is designed to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a quick-change battery box cover structure to address the aforementioned technical problems, thereby resolving the technical issues that existing quick-change battery box cover structures are inconvenient for quick pre-positioning during assembly and disassembly for adjusting the internal space of the battery box.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A quick-change battery box cover structure includes a battery box, with first fixing plates fixed on both sides of the battery box. A cover is slidably connected to the outer side of the top of the battery box. Second fixing plates are fixed on both sides of the cover at positions intersecting with the first fixing plates. A partition mechanism for separation is installed inside the battery box. The partition mechanism includes a partition plate, an assembly plate, connecting bolts, a connecting plate, and a first tension spring. Connecting plates are slidably connected to both sides of the inner side of the partition plate. The connecting plates are slidably connected to the battery box. A first tension spring is fixed between the two connecting plates and inside the partition plate. An assembly plate is provided on the top of the partition plate. The top of the connecting plate is slidably connected to the assembly plate. Connecting bolts are rotatably connected to the inner sides of both sides of the assembly plate. The outer side of the bottom end of the connecting bolt is threaded to the partition plate.

[0008] In a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the bottom of the second fixing plate and the bottom of the first fixing plate are located on the same horizontal plane.

[0009] As a preferred embodiment of the quick-change battery box cover structure provided by this utility model, a wire hole is provided inside one side of the top of the box cover.

[0010] As a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the bottom adjacent sides of the connecting plate are provided with extrusion slopes.

[0011] As a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the interior of both sides of the partition plate is provided with mounting through holes.

[0012] As a preferred embodiment of the quick-change battery box cover structure provided by this utility model, a positioning mechanism for connecting the battery box is installed on the top of the cover, and rectangular grooves are opened at both ends of the inner sides of the battery box.

[0013] In a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the two rectangular slots on the same side are symmetrically arranged, and the rectangular slots on both sides are symmetrically arranged.

[0014] As a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the positioning mechanism includes a synchronizing frame, a positioning block, a housing, a rotating column, a pressing plate, and a second tension spring. Synchronizing frames are provided on both sides of the top of the cover. A positioning block is fixed at the bottom of one of the adjacent sides of the two synchronizing frames, corresponding to the position of the rectangular groove. The positioning block and the rectangular groove, and the positioning block and the cover are slidably connected. A housing is fixed in the middle of the top of the cover. The synchronizing frame is slidably connected to the housing. A rotating column is rotatably connected inside the housing. A turntable is fixed at the top of the rotating column. An anti-rotation bolt is threaded onto one side of the turntable. The anti-rotation bolt is slidably connected to the housing. A pressing plate is fixed at the bottom of the rotating column. A second tension spring is fixed between the two synchronizing frames, located inside the housing.

[0015] In a preferred embodiment of the quick-change battery box cover structure provided by this utility model, the length of the extrusion plate is greater than the width of the extrusion plate.

[0016] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0017] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0018] The quick-change battery box cover structure provided by this utility model, through the cooperation of the battery box, the cover, the positioning mechanism and the dividing mechanism, can limit the two ends of the battery by the position of the dividing mechanism inside the battery box during use, and when the cover is installed on the outside of the battery box, the positioning mechanism can achieve pre-positioning of the assembly.

[0019] Through the cooperation of the partition plate, the assembly plate, the connecting plate and the first tension spring, the partition plate can be slidably assembled inside the battery box through the connecting plate, thereby limiting the position according to the width of the battery, and the extrusion plate can be bolted onto the partition plate according to the assembly through hole to achieve fine-tuning extrusion between the partition plate and the battery.

[0020] Through the cooperation of the synchronization frame, positioning block and turntable, when the cover is installed on the outside of the battery box and the first fixing plate and the second fixing plate are staggered and parallel, the positioning block enters the inside of the battery box to position the cover on the outside of the battery box, and the anti-rotation bolt rotates down through the thread inside the turntable to stop the turntable from rotating. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram illustrating the separation of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the battery box of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the partition plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the box cover of this utility model;

[0027] Figure 6 This is a schematic diagram of the extrusion plate of this utility model;

[0028] Figure 7 This is a schematic diagram of the anti-rotation bolt of this utility model.

[0029] In the diagram: 1. Battery box; 2. First fixing plate; 3. Box cover; 4. Second fixing plate; 5. Divider plate; 6. Assembly plate; 7. Connecting bolt; 8. Assembly through hole; 9. Connecting plate; 10. First tension spring; 11. Extrusion slope; 12. Wire hole; 13. Synchronizing frame; 14. Positioning block; 15. Outer shell; 16. Rotating column; 17. Extrusion plate; 18. Second tension spring; 19. Anti-rotation bolt; 20. Turntable. Detailed Implementation

[0030] 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 illustrative of the present utility model and are not intended to limit the present utility model.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Reference Figures 1-7 The battery box cover quick-change structure includes a battery box 1, with first fixing plates 2 fixed on both sides of the battery box 1. A cover 3 is slidably connected to the outer side of the top of the battery box 1, so that after the battery is placed inside the battery box 1, the battery is closed by the assembly of the cover 3 on the battery box 1. Second fixing plates 4 are fixed on both sides of the cover 3 at positions that are staggered with the first fixing plates 2, and the bottom of the second fixing plates 4 is at the same level as the bottom of the first fixing plates 2. This allows the cover 3 to be assembled on the battery box 1 and then externally connected and fixed by bolts entering the through holes inside the first fixing plates 2 and the second fixing plates 4.

[0035] In this embodiment, a sealing structure can be added between the battery box 1 and the box cover 3 according to the assembly requirements.

[0036] Preferably, a wire hole 12 is provided inside the top side of the cover 3, so that the connecting wire can enter the battery box 1 through the wire hole 12 and connect to the battery. At the same time, a sealing structure between the wire and the wire can be installed inside the wire hole 12.

[0037] The battery box 1 is equipped with a partition mechanism for separation. The partition mechanism includes a partition plate 5, an assembly plate 6, a connecting bolt 7, a connecting plate 9, and a first tension spring 10. The two sides of the partition plate 5 are slidably connected to the connecting plate 9, and the two connecting plates 9 are symmetrically arranged. They are both L-shaped. The connecting plate 9 is slidably connected to the battery box 1, so that when the connecting plate 9 enters the battery box 1, the partition plate 5 and the battery box 1 are inseparable and the position cannot be adjusted. The bottom of the two connecting plates 9 is provided with a pressing slope 11 on an adjacent side, so that the highest point of the two pressing slopes 11 is located on an adjacent side. This allows the partition plate 5 to enter the battery box 1. When the connecting plate 9 contacts the bottom of the battery box 1, the pressing slope 11 causes the connecting plate 9 to be pressed and move inside the partition plate 5, so that the two connecting plates 9 move away from each other.

[0038] A first tension spring 10 is fixed between the two connecting plates 9 and inside the partition plate 5, so that the two connecting plates 9 move away from each other and stretch the extrusion slope 11. Assembly through holes 8 are evenly distributed inside both sides of the partition plate 5, so that the partition plate 5 can be fixed to the partition plate 5 by inserting the externally added fine-tuning extrusion plate into the assembly through hole 8 through bolts. An assembly plate 6 is provided on the top of the partition plate 5, and the top of the connecting plate 9 is slidably connected to the assembly plate 6. Therefore, when the assembly plate 6 is assembled on the top of the partition plate 5, the connecting plate 9 cannot be manually moved. Connecting bolts 7 are rotatably connected inside both sides of the assembly plate 6. The outer side of the bottom end of the connecting bolt 7 is threadedly connected to the partition plate 5, so that the assembly plate 6 and the partition plate 5 can be assembled or disassembled through the connecting bolts 7.

[0039] The top of the cover 3 is equipped with a positioning mechanism for connecting the battery box 1. This positioning mechanism ensures that the cover 3 cannot be directly separated from the battery box 1 when it is located outside the battery box 1. However, it can be quickly separated by adjusting the structure separately. Both ends of the battery box 1 are provided with rectangular slots to allow the positioning block 14 in the positioning mechanism to enter the rectangular slots so that it cannot be separated. The two rectangular slots on the same side are symmetrically arranged, and the rectangular slots on both sides are symmetrically arranged, so that the cover 3 can be assembled in different positions outside the battery box 1.

[0040] The positioning mechanism includes a synchronizing frame 13, a positioning block 14, a housing 15, a rotating column 16, a pressing plate 17, and a second tension spring 18. Synchronizing frames 13 are provided on both sides of the top of the cover 3. A positioning block 14 is fixed at the bottom of the adjacent side of the two synchronizing frames 13 and at the position corresponding to the rectangular groove. The positioning block 14 is slidably connected to the rectangular groove and to the cover 3. This allows the positioning block 14 to enter the rectangular groove when the cover 3 is outside the battery box 1, so that the cover 3 and the battery box 1 are inseparable. The housing 15 is fixed in the middle of the top of the cover 3. The synchronizing frame 13 is slidably connected to the housing 15, so that the synchronizing frame 13 can be translated inside the housing 15 but cannot be detached. At the same time, the translation distance of the synchronizing frame 13 inside the housing 15 is just the distance that the positioning block 14 detaches from the rectangular groove.

[0041] A rotating column 16 is rotatably connected inside the outer casing 15, allowing the rotating column 16 to rotate only inside the outer casing 15. A turntable 20 is fixed to the top of the rotating column 16, and there is a gap between the turntable 20 and the outer casing 15, so that the rotation of the turntable 20 drives the rotating column 16 to rotate synchronously. An anti-rotation bolt 19 is threadedly connected to one side of the turntable 20. The anti-rotation bolt 19 is slidably connected to the outer casing 15, so that when the anti-rotation bolt 19 and the threaded connection of the turntable 20 descend in the turntable 20, the end of the turntable 20 enters the corresponding hole inside the rotating column 16, thereby stopping the rotation of the turntable 20.

[0042] A pressing plate 17 is fixed to the bottom of the rotating column 16, and the length of the pressing plate 17 is greater than the width of the pressing plate 17. This allows the rotation of the turntable 20 to drive the pressing plate 17 to rotate through the rotating column 16, thereby pressing the synchronous frame 13. A second tension spring 18 is fixed between the two synchronous frames 13 and inside the outer casing 15, so that the two synchronous frames 13 can be reset by the rebound after being stretched by the second tension spring 18. When the two synchronous frames 13 are reset, the positioning block 14 is located in the rectangular groove in the battery box 1.

[0043] The usage process of the quick-change battery box cover structure provided by this utility model is as follows: In use, the first fixing plate 2 can be connected to the equipment by bolts. Then, during assembly, the partition plate 5 can be assembled inside the battery box 1 according to the width of the battery. The connecting plate 9 is then pressed against the battery box 1 by the pressing inclined surface 11, causing the two connecting plates 9 to move away and pulling the first tension spring 10. When the connecting plate 9 enters the battery box 1, there is no external pressure, allowing the first tension spring 10 to stretch and reset, causing the two connecting plates 9 to move closer together. The assembly plate 6 is then installed using the connecting bolts 7. Installed on top of the partition plate 5, thereby limiting the two ends of the battery through the two partition plates 5 in the battery box 1, and then the box cover 3 is slidably assembled on the outside of the battery box 1, and the second fixing plate 4 and the first fixing plate 2 are lowered alternately, and then the positioning block 14 enters the rectangular groove in the battery box 1 to achieve the pre-positioning of the box cover 3 and the battery box 1. During the specific positioning, the bolts enter the connection in the box cover 3 and the anti-rotation bolt 19 is lowered in the turntable 20, allowing the anti-rotation bolt 19 to enter the interior of the rotating column 16 to achieve the rotation of the turntable 20. At this time, the box cover 3 will not easily detach from the outside of the battery box 1 due to accidental contact.

[0044] When it is necessary to quickly separate the cover 3 from the battery box 1, the bolts on the cover 3 can be removed, and the anti-rotation bolt 19 can be separated from the rotating column 16 by rotating the turntable 20. At this time, the turntable 20 can be rotated directly, so that the turntable 20 drives the extrusion plate 17 to rotate through the rotating column 16. The rotation of the extrusion plate 17 extrudes the synchronous frame 13, causing the two synchronous frames 13 to move in opposite directions and drive the second tension spring 18 to stretch. At this time, the synchronous frame 13 drives the positioning block 14 to disengage from the rectangular groove on the battery box 1, thereby separating the cover 3 from the battery box 1 by rising, achieving quick separation, and replacing the battery inside the battery box 1.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-change battery box cover structure, characterized in that, The battery box (1) includes a battery case (1), on both sides of which a first fixing plate (2) is fixed. A cover (3) is slidably connected to the outer side of the top of the battery case (1). A second fixing plate (4) is fixed on both sides of the cover (3) at a position intersecting with the first fixing plate (2). A partition mechanism for separation is installed inside the battery case (1). The partition mechanism includes a partition plate (5), an assembly plate (6), connecting bolts (7), a connecting plate (9), and a first tension spring (10). Both sides of the interior are slidably connected to a connecting plate (9), which is slidably connected to the battery box (1). A first tension spring (10) is fixed between the two connecting plates (9) and inside the partition plate (5). An assembly plate (6) is provided on the top of the partition plate (5). The top of the connecting plate (9) is slidably connected to the assembly plate (6). Both sides of the assembly plate (6) are rotatably connected to connecting bolts (7). The outer side of the bottom end of the connecting bolt (7) is threadedly connected to the partition plate (5).

2. The quick-change battery box cover structure according to claim 1, characterized in that, The bottom of the second fixing plate (4) is on the same horizontal plane as the bottom of the first fixing plate (2).

3. The quick-change battery box cover structure according to claim 1, characterized in that, A wire hole (12) is provided inside the top side of the box cover (3).

4. The quick-change battery box cover structure according to claim 1, characterized in that, Both connecting plates (9) have extrusion slopes (11) on adjacent sides at the bottom.

5. The quick-change battery box cover structure according to claim 1, characterized in that, Assembly through holes (8) are evenly distributed inside both sides of the partition plate (5).

6. The quick-change structure for the battery box cover according to claim 1, characterized in that, The top of the cover (3) is equipped with a positioning mechanism for connecting the battery box (1), and rectangular grooves are provided at both ends of the inside of both sides of the battery box (1).

7. The quick-change battery box cover structure according to claim 6, characterized in that, The two rectangular slots on the same side are symmetrically arranged, and the rectangular slots on both sides are symmetrically arranged.

8. The quick-change structure for the battery box cover according to claim 6, characterized in that, The positioning mechanism includes a timing frame (13), a positioning block (14), a housing (15), a rotating column (16), a pressing plate (17), and a second tension spring (18). Timing frames (13) are provided on both sides of the top of the box cover (3). A positioning block (14) is fixed at the bottom of one adjacent side of each of the two timing frames (13) at a position corresponding to the rectangular groove. The positioning block (14) is slidably connected to the rectangular groove and to the box cover (3). A housing (15) is fixed in the middle of the top of the box cover (3). The synchronous frame (13) is slidably connected to the outer shell (15). A rotating column (16) is rotatably connected inside the outer shell (15). A turntable (20) is fixed to the top of the rotating column (16). An anti-rotation bolt (19) is threadedly connected to one side of the turntable (20). The anti-rotation bolt (19) is slidably connected to the outer shell (15). A pressing plate (17) is fixed to the bottom of the rotating column (16). A second tension spring (18) is fixed between the two synchronous frames (13) and inside the outer shell (15).

9. The quick-change structure for the battery box cover according to claim 8, characterized in that, The length dimension of the extrusion plate (17) is greater than the width dimension of the extrusion plate (17).