Automobile battery protection shell facilitating disassembly and assembly of battery

Abstract

The utility model relates to new energy automobile technical field discloses a car battery protection shell convenient to battery dismounting, including base, the upper side movable joint of base has the protection shell body, and the battery pack is placed between protection shell body and base, and both ends of base all are fixedly installed with side guard board, and the both ends of base are located below side guard board all and moveably install buffer assembly, the upper surface and bottom surface of battery pack all are provided with fixed plate, and the four corner positions of fixed plate all are fixedly installed with fixed lug, and the fixed plate on the bottom surface of battery pack is set and is penetrated and is set with a plurality of through -hole, in the utility model, the battery pack is clamped through the fixed plate of its top and bottom, and the nut locking is locked after the extension bolt passes through top fixed lug, bottom fixed lug and the connecting lug on the base in proper order, so that the battery pack forms the stable whole, and is firmly fixed to the base, and only needs to dismount the extension bolt to be able to nondestructive separation battery pack and base.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a protective shell for automotive batteries that facilitates battery installation and removal. Background Technology

[0002] In the field of new energy vehicles, power battery packs need to combine high protection with maintainability. Traditional battery protective shells typically use multiple bolts to rigidly lock the battery pack to the internal frame to ensure sealing and structural strength, and then fill the gaps between the battery pack and the frame with sealant for waterproofing and dustproofing. This results in low efficiency in battery disassembly and assembly. Disassembly requires removing numerous bolts one by one and thoroughly cleaning the hardened sealant, a time-consuming operation that can easily damage components. Furthermore, the destructive removal of the sealant and protective shell damages the mating surfaces of the protective shell, making it difficult to restore the original seal during reassembly and affecting the reuse of the protective shell.

[0003] Furthermore, rigid connection structures are prone to stress concentration when the battery expands or is impacted, while closed-loop designs further hinder heat dissipation and airflow. Therefore, we propose a protective casing for automotive batteries that facilitates easy battery installation and removal. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a protective shell for automobile batteries that facilitates battery disassembly and assembly.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a protective shell for automotive batteries that facilitates battery installation and removal, comprising a base, a protective shell movably connected to the top of the base, a battery pack placed between the protective shell and the base, side guard plates fixedly installed at both ends of the base, and buffer components movably installed at both ends of the base below the side guard plates; fixing plates are provided on the upper and lower surfaces of the battery pack, fixing ears are fixedly installed at the four corners of the fixing plates, and multiple through holes are provided through the fixing plate located on the bottom surface of the battery pack; connecting ears for use with the fixing ears are fixedly installed on the outer wall of the base; an extension bolt is movably connected to the fixing ear located on the top of the battery pack, and the lower end of the extension bolt passes through the fixing ear located on the bottom of the battery pack and the corresponding connecting ear in sequence, and the end is fastened by a nut.

[0006] Preferably, the upper surface of the base is further fixedly installed with first grid plates at both ends on the inner side of the side guard plate, and support plates are fixedly installed on the outer wall of the opposite side of the two first grid plates, so as to support the two ends of the protective shell.

[0007] Preferably, a second connecting plate is fixedly installed on the lower outer wall of the protective shell, a first connecting plate is fixedly installed on the outer wall of the base between two connecting ears, and multiple fastening bolts are movably installed on the second connecting plate, and the first connecting plate and the second connecting plate are fixed together by bolts.

[0008] Preferably, a third connecting plate is fixedly installed at both ends of the protective shell, and a plurality of fastening bolts are movably installed on the third connecting plate, with the ends of the plurality of fastening bolts fixedly connected to the side wall of the first grid plate.

[0009] Preferably, a second grid plate is fixedly installed on the upper surface of the base, a partition plate is fixedly installed on the upper surface of the second grid plate, and multiple baffles are fixedly installed on the upper surface of the partition plate along the long side of the base. Multiple guide blocks are fixedly installed between two adjacent baffles, and multiple heat dissipation holes are opened through the lower ends of the two side guard plates. Air ducts are fixedly installed inside the multiple heat dissipation holes.

[0010] Preferably, the buffer assembly includes an outer protective plate rotatably connected to the outer wall of the base end. Multiple pressure blocks matching the lower grid of the first grid plate are fixedly installed on the inner wall of the outer protective plate near the first grid plate. A spring is fixedly connected inside the lower grid of the first grid plate, and the end of the spring is fixedly connected to the pressure block.

[0011] Preferably, protective pads are provided between the outer walls at both ends of the battery pack and the side guards, and the protective pads are elastically designed. Beneficial effects

[0012] This invention provides a protective shell for automotive batteries that facilitates battery installation and removal. It offers the following advantages:

[0013] (1) The battery pack is clamped by the top and bottom fixing plates of the car battery protective shell which facilitates battery disassembly and assembly. The extended bolts pass through the top fixing ears, bottom fixing ears and connecting ears on the base in sequence and are then locked with nuts, so that the battery pack itself forms a stable whole and is firmly fixed to the base. The battery pack and the base can be separated without damage by simply removing the extended bolts. At the same time, the protective shell and the base are connected by bolts through the first connecting plate and the second connecting plate, and are fixed to the first grid plate fixed to the base by bolts through the third connecting plate, forming multiple detachable connection points. The protective shell can be easily removed by removing these connecting bolts, providing sufficient space for battery pack operation, greatly simplifying the maintenance process, avoiding damage to the protective shell, and making the protective shell reusable.

[0014] (2) The car battery protective shell that facilitates battery disassembly and assembly has a buffer assembly that, when the two ends of the base are bumped, the outer protective plate rotates and pushes the pressure block to compress the spring, effectively absorbing the impact energy and protecting the main structure. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down.

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of the side guard plate and the first grid plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the spring structure installation of this utility model;

[0021] Figure 5 This is a schematic diagram showing the disassembled structure of the partition of this utility model;

[0022] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Legend: 1. Protective shell; 2. Base; 3. Side guard plate; 4. First grid plate; 5. Outer guard plate; 6. Battery pack; 7. Fixing plate; 8. Fixing lug; 9. Extension bolt; 10. Connecting lug; 11. First connecting plate; 12. Second connecting plate; 13. Third connecting plate; 14. Protective pad; 15. Spring; 16. Pressure block; 17. Air duct; 18. Second grid plate; 19. Baffle; 20. Partition plate; 21. Heat dissipation hole; 22. Support plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-6 As shown, a car battery protective shell for easy battery installation and removal includes a base 2, a protective shell 1 movably connected to the top of the base 2, a battery pack 6 placed between the protective shell 1 and the base 2, side guard plates 3 fixedly installed at both ends of the base 2, and buffer components movably installed at both ends of the base 2 below the side guard plates 3; fixing plates 7 are provided on the upper and lower surfaces of the battery pack 6, fixing ears 8 are fixedly installed at the four corners of the fixing plates 7, and multiple through holes are provided on the fixing plates 7 located on the bottom surface of the battery pack 6; connecting ears 10 for use with the fixing ears 8 are fixedly installed on the outer wall of the base 2. An extension bolt 9 is movably connected to a fixing lug 8 located above the battery pack 6. The lower end of the extension bolt 9 passes through the fixing lug 8 located below the battery pack 6 and the corresponding connecting lug 10, and the end is tightened by a nut. The battery pack 6 is clamped and fixed to the upper surface of the base 2 by the cooperation of two fixing plates 7 and extension bolt 9. At this time, the battery pack 6 can be stably formed into a whole under the limiting action of the two fixing plates 7, and the battery pack 6 is stably installed on the upper surface of the base 2 under the tightening action of extension bolt 9. The battery pack 6 can be separated from the base 2 by disassembling extension bolt 9.

[0026] like Figure 3 As shown, the upper surface of the base 2 is fixedly installed with first grid plates 4 at both ends on the inner side of the side guard plate 3. Support plates 22 are fixedly installed on the outer walls of the opposite sides of the two first grid plates 4. The support plates 22 support the two ends of the protective shell 1. The cross section of the support plate 22 matches the two ends of the protective shell 1. That is, the side wall and upper surface of the support plate 22 fit into the top interior and end side wall of the protective shell 1. The support plate 22 is set to facilitate the positioning of the protective shell 1 during installation and to support the two ends of the protective shell 1, ensuring the overall strength of the protective shell structure.

[0027] like Figure 1 As shown, a second connecting plate 12 is fixedly installed on the lower outer wall of the protective housing 1, and a first connecting plate 11 is fixedly installed on the outer wall of the base 2 between the two connecting ears 10. Multiple fastening bolts are movably installed on the second connecting plate 12, and the first connecting plate 11 and the second connecting plate 12 are fixed together by bolts. After removing the multiple fastening bolts, the lower end of the protective housing 1 can be separated from the base 2.

[0028] like Figure 1 As shown, a third connecting plate 13 is fixedly installed at both ends of the protective shell 1. Multiple fastening bolts are movably installed on the third connecting plate 13, and the ends of the multiple fastening bolts are fixedly connected to the side wall of the first grid plate 4. The third connecting plate 13 is fixed to the first grid plate 4 by the multiple fastening bolts. The first grid plate 4 is fixedly connected to the base 2. The connection between the third connecting plate 13 and the first grid plate 4 makes the entire protective shell structure more robust.

[0029] like Figure 5 As shown, a second grid plate 18 is fixedly installed on the upper surface of the base 2, and a partition plate 20 is fixedly installed on the upper surface of the second grid plate 18. Multiple baffles 19 are fixedly installed on the upper surface of the partition plate 20 along the long side of the base 2. Multiple guide blocks are fixedly installed between two adjacent baffles 19, and multiple heat dissipation holes 21 are opened through the lower ends of the two side guard plates 3. Air ducts 17 are fixedly installed inside the multiple heat dissipation holes 21. The baffles 19 divide the upper surface of the partition plate 20 into multiple ventilation chambers distributed along the long side of the base 2. The multiple heat dissipation holes 21 opened through the two side guard plates 3 are respectively set to correspond to the multiple ventilation chambers. When the airflow generated during vehicle operation flows through the interior of the ventilation chamber, it passes through the through hole opened on the fixed plate 7 located on the bottom surface of the battery pack 6 under the action of the guide block and then contacts the battery pack 6 to assist the battery pack 6 in heat dissipation.

[0030] like Figure 4 As shown, the buffer assembly includes an outer protective plate 5 rotatably connected to the outer wall of the end of the base 2. Multiple pressure blocks 16 matching the lower grid of the first grid plate 4 are fixedly installed on the inner wall of the outer protective plate 5 near the first grid plate 4. A spring 15 is fixedly connected inside the lower grid of the first grid plate 4. The end of the spring 15 is fixedly connected to the pressure block 16. When the battery protective shell is transported, if the two ends of the bottom surface of the entire device are bumped, the outer protective plate 5 rotates around the connection point with the end of the base 2. The multiple pressure blocks 16 fixedly installed on the outer protective plate 5 rotate into the lower grid of the first grid plate 4 and squeeze the spring 15. The spring 15 is compressed after being subjected to force, which can buffer when the two ends of the bottom surface of the protective shell are bumped, and prevent the protective shell from deforming due to the bump.

[0031] like Figure 2 As shown, protective pads 14 are provided between the outer walls at both ends of the battery pack 6 and the side guard plate 3, and the protective pads 14 are elastically provided; the elastically provided protective pads 14 can absorb some of the stress generated by the expansion when the battery pack 6 expands.

[0032] The working principle of this utility model is as follows: In use, the battery pack 6 is clamped and fixed to the upper surface of the base 2 by the cooperation of two fixing plates 7 and the extension bolt 9. At this time, the battery pack 6 can be stably formed into a whole under the limiting action of the two fixing plates 7, and the battery pack 6 is stably installed on the upper surface of the base 2 under the tightening action of the extension bolt 9. After the extension bolt 9 is disassembled, the battery pack 6 can be separated from the base 2. At the same time, the protective shell 1 and the base 2 are connected by the first connecting plate 11 and the second connecting plate 12. The connection between the protective shell 1 and the base 2 can also be strengthened by the cooperation between the third connecting plate 13 and the outer wall of the first grid plate 4. When the battery pack 6 is placed inside the protective shell 1, the connection between the protective shell 1 and the base 2 is strengthened. When the battery pack 6 is installed, its bottom can be protected by forming an energy-absorbing cavity through the second grid plate 18. The two ends can also be protected and mechanically supported by the first grid plate 4. The protective shell 1 has an inverted U-shaped cross section. When the protective shell 1 is fastened to the upper surface of the base 2, it can form a sealed structure with the base 2 and the two side guard plates 3 to protect the battery pack 6. At the same time, the ventilation cavity set on the bottom surface of the base 2 can assist the battery pack 6 in heat dissipation. When it is necessary to disassemble the battery pack 6, the user can separate the first connecting plate 11 from the second connecting plate 12, the third connecting plate 13 from the first grid plate 4, and then remove the extended bolts 9 set on the fixing ears 8 to easily take out the battery pack 6.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective case for automotive batteries that facilitates battery installation and removal, comprising a base (2), characterized in that: A protective shell (1) is movably connected above the base (2). A battery pack (6) is placed between the protective shell (1) and the base (2). Side guard plates (3) are fixedly installed at both ends of the base (2). Buffer components are movably installed at both ends of the base (2) below the side guard plates (3). Fixing plates (7) are provided on the upper and lower surfaces of the battery pack (6). Fixing ears (8) are fixedly installed at the four corners of the fixing plates (7). Multiple through holes are opened on the fixing plates (7) located on the bottom surface of the battery pack (6). Connecting ears (10) that cooperate with the fixing ears (8) are fixedly installed on the outer wall of the base (2). An extension bolt (9) is movably connected to the fixing ears (8) located above the battery pack (6). The lower end of the extension bolt (9) passes through the fixing ears (8) located below the battery pack (6) and the corresponding connecting ears (10) in sequence, and the end is tightened by a nut.

2. The automotive battery protective case for easy battery installation and removal according to claim 1, characterized in that: The upper surface of the base (2) is fixedly installed with first grid plates (4) on the inner side of the side guard plate (3). Support plates (22) are fixedly installed on the outer wall of the opposite side of the two first grid plates (4), and the two ends of the protective shell (1) are supported by the support plates (22).

3. The automotive battery protective case for easy battery installation and removal according to claim 2, characterized in that: The lower outer wall of the protective shell (1) is fixedly installed with a second connecting plate (12), and the outer wall of the base (2) is fixedly installed with a first connecting plate (11) between two connecting ears (10). Multiple fastening bolts are movably installed on the second connecting plate (12), and the first connecting plate (11) and the second connecting plate (12) are fixed together by bolts.

4. A car battery protective case for easy battery installation and removal according to claim 3, characterized in that: The protective housing (1) is also fixedly installed at both ends with a third connecting plate (13), and multiple fastening bolts are movably installed on the third connecting plate (13). The ends of the multiple fastening bolts are fixedly connected to the side wall of the first grid plate (4).

5. A car battery protective case for easy battery installation and removal according to claim 4, characterized in that: The upper surface of the base (2) is fixedly installed with a second grid plate (18), the upper surface of the second grid plate (18) is fixedly installed with a partition plate (20), the upper surface of the partition plate (20) is fixedly installed with multiple baffles (19) arranged along the long side of the base (2), multiple guide blocks are fixedly installed between two adjacent baffles (19), and multiple heat dissipation holes (21) are opened through the lower ends of the two side guard plates (3), and air ducts (17) are fixedly installed inside the multiple heat dissipation holes (21).

6. A car battery protective case for easy battery installation and removal according to claim 5, characterized in that: The buffer assembly includes an outer protective plate (5) rotatably connected to the outer wall of the end of the base (2). Multiple pressure blocks (16) matching the lower grid of the first grid plate (4) are fixedly installed on the inner wall of the outer protective plate (5) near the first grid plate (4). A spring (15) is fixedly connected inside the lower grid of the first grid plate (4), and the end of the spring (15) is fixedly connected to the pressure block (16).

7. A car battery protective case for easy battery installation and removal according to claim 6, characterized in that: Protective pads (14) are provided between the outer walls of both ends of the battery pack (6) and the side guard plate (3), and the protective pads (14) are elastically provided.

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